Abstract: The invention relates to a damping device for movable furniture parts, for example for doors or drawers, comprising a piston or plunger which is slidably guided in a hollow body, e.g. a cylinder, with said piston or plunger being impinged upon by spring force into its pushed-out position. According to the invention, the hollow body comprises at least one section of a spiral-shaped stay of the internal screw thread, and/or the piston or plunger comprises at least one section of a spiral-shaped stay of the external screw thread. The stays of the screw threads are glidingly supported one on top of the other, or cams or journals of the hollow body or of the piston or plunger are supported on a screw-thread section of the other component. The pitch of the stays of the screw threads is greater than the pitch at which self-locking occurs.

Abstract: The present discloses a semiautomatic finger protection device, which comprising a bumper positioned between an outer surface of the door and an doorpost when the door is closed, and positioned in a gap on the hinge side of the door when the door is opened; a securing member to position the bumper; and a connecting member having the two ends retractably connected with said bumper and said securing member respectively. The bumper has a flexible wrapping means received in the bumper to extend/retract the connecting member.

Abstract: In order to ensure that a door can be retained at least in a fully opened position and a slightly opened position by the combination of a smaller number of exclusive parts with a hinge connecting a body and a door in a door retention device used in a process of manufacturing an automobile, the door retention device includes a torsion spring 23 mounted to a first hinge arm 1 of a door hinge H, and a cam 20 formed on a second hinge arm 2 of the door hinge H. The cam 20 is provided with a first positioning recess 20a and a second positioning recess 20b in which a movable arm portion 23c of the torsion spring 23 is brought into engagement in the fully opened position F and the slightly opened position S of the door D, and a projection 20c disposed between the first and second positioning recesses 20a and 20b and adapted to apply a load to the movable arm portion 23c in accordance with the turning of the door D.

Abstract: A buffer bar fastening structure for fastening a buffer bar to a hinge of a cabinet door includes a barrel which has flanges on two ends to couple with arched portions at two ends of a latch member to couple the buffer bar on the barrel in a turnable manner. The latch member has one side connecting to a fastening member, which may be coupled with an adjusting slot of the hinge and a fastening section on another side to fasten the buffer bar to the hinge. The structure is simple and easy to install.

Abstract: A buffer includes a grommet having a tube portion, an attaching portion and an elastic engaging piece projecting inside the tube portion; an engaging member having an engaging step portion provided on an outer surface thereof for engaging the elastic engaging piece to prevent the engaging member from coming out in a counter-insertion direction when the engaging member is inserted into the tube portion in an insertion direction; and a damper main member having an abutting portion provided in a middle in a longitudinal direction for abutting against the engaging member when the damper main member is inserted into the engaging member. A projecting length adjustable device is formed for moving the damper main member in the counter-insertion direction and for fixing a projecting length of the damper main member projecting from the grommet.

Abstract: A door catch includes a back plate having two laterally symmetric sleeves formed on a front face thereof. A slot is provided on the back plate behind each of the sleeves at a predetermined position to communicate with an inner space of the sleeve, and an insert plate is inserted from a back face of the back plate into the sleeve via the slot to confine a steel ball and a spring in the sleeve, such that the springs not only normally push the steel balls forward to partially project from front open ends of the sleeves for tightly clamping a corresponding stop post between the balls, but also tightly push against the insert plates to hold the latter in place. The insert plates are held down in place in the sleeves by a wall when the back plate is mounted on the wall with fastening elements.

Abstract: A safety structure for a cover device includes a base assembly and a cover assembly. The base assembly has a concave portion. The cover assembly is hinged to the base assembly and may cover the base assembly. The cover assembly has a cover body and a projection, which may elastically protrude out of and retract into the cover body, and may be fit into the concave portion for positioning. The projection is configured such that it may retract into the cover body to prevent an object from being hurt when the cover assembly is placed down and touches the object.

Abstract: A cabinet door buffer bar includes a hollow tube, a shaft, an elastic element and a sliding member. The sliding member and the inner wall of the hollow tube form different intervals there between so that a resilient member mounted thereon receives varying constraints and generates different buffer forces in different moving directions thereby provides the cabinet door a required buffer force to avoid generating annoying noise and incurring damages during closing of the cabinet door.

Abstract: It is an object of the present invention to provide a rotary damper capable of automatically adjusting an exhibited braking force in correspondence with variation in load. A fluid chamber 2 into which viscous fluid is charged is formed in a casing 1. A vane 3 is disposed in the fluid chamber 2. The vane 3 is formed with a fluid passage 5, and is provided with a valve 6. The valve 6 automatically varies a flow rate of the viscous fluid passing through the fluid passage 5 in correspondence with variation in load. With this structure, it is possible to automatically adjust the exhibited braking force in correspondence with variation in load caused by variation in rotational motion of a subject to be controlled, and to reduce variation in rotation speed of the subject to be controlled to an extremely small value.

Abstract: A door stop is provided for retaining a door in a user selected position. The door stop includes a support connectable to the door adjacent the bottom thereof and a stop member pivotably connected to the support. The stop member is pivotable between a first retracted position and a second extended position wherein at least a portion of the stop member is below the bottom of the door.

Abstract: A noise control device for a steel door includes a buffer, a shock-absorbing member, a stopping member, or only includes a colliding member. The noise control device is installed at any location of a steel door and a casting where noise may be generated when the steel door is closed or opened. The buffer consists of a cylinder, a lower sponge, a coil spring, a rod, and an upper sponge and possibly a colliding member. The buffer can be mainly installed on a deadbolt groove of the casing. The shock-absorbing member may be fixed on the steel door or the casing for reducing sound. The stopping member is fixed on the steel door to face the outer end of the buffer. The noise control device can reduce noise generated in opening and closing as much as possible and preventing the both from disfiguring or denting.

Abstract: The current invention discloses a wall mountable device that suitable for use on a marine vessel. The device has having a stop member with a spring biased piston and a compressible bumper covering the end of the piston. A latch is mounted on the stop. The latch is adjustable for use regardless of which way a door swings. A striker plate and a catch are mountable on a door and their angle relative to the door can be adjusted to allow the device to function where a door does to open exactly parallel to an adjacent wall. In use, the piston spring forces the bumper against the striker plate when the door is locked in the open position thereby preventing the device from rattling when the vessel is in rough water.

Abstract: Door and cabinet catch with a bumper member, a bumper housing, a compression spring, a ball with stem, a ball joint mounting plate, a ball joint nut, a catch member and an L shaped catch retaining member. The bumper housing includes a clevis that hingably retains the catch member. The catch member includes a spring biased tab for opening the catch member. The compression spring holds the bumper member in an extended position so that it can compress during use thereby reducing the chance of rattling. A preferred embodiment includes that the ball joint allows the bumper housing and bumper member to angle as much as thirty degrees in any direction through a three hundred and sixty degree arc thereby making it possible to obtain a latching action even if the relationship between the catch member and the catch retaining member is not parallel.

Abstract: A door closing mechanism, involving a shaft rod that moves in relation to, and is installed inside a tube unit. On the shaft rod is an open/close unit.

Abstract: A damper mechanism installed on an opening and closing device that has an arcuate plunger with the same radius of curvature of the cylinder it slidably mates with. A torsion coil spring causes the sliding action of the plunger into the cylinder in one direction.

Abstract: A checker-equipped door hinge includes a checker that is provided between first and second hinge arms and imparts a stepwise limiting resistance to pivoting of the two hinge arms relative to each other. The checker includes a check cam that is formed separately from the first hinge arm and is fixedly attached to the first hinge arm; a roller that can sequentially engage with detent notches of the check cam in response to the pivoting of the two hinge arms relative to each other; and a torsion spring that is mounted in the second hinge arm while supporting the roller with its free end portion, the torsion spring biasing the roller in a direction in which it engages with the detent notches. Thus, a plurality of types of checker-equipped door hinges having various check properties can be provided at low cost by standardizing the hinge arm.

Abstract: A garbage storage device includes a base, a bin, a pedal, a lid, a linkage, a buffer and a guide. The bin is installed on the base. The pedal is mounted on the bin. The lid is mounted on the bin. The linkage includes a crankshaft and a rod. The crankshaft includes a shaft mounted on the base, a first crank extending from the shaft for contact with the pedal and a second crank extending from the shaft. The rod includes a middle portion, a first end extending from the middle portion into connection with the second crank and a second end extending from the middle portion into connection with the lid. The buffer includes a first end connected with the base and a second end connected with the first end of the rod. The guide is mounted on the base for guiding and ensuring smooth movement of the first end of the rod.

Abstract: A checker-equipped door hinge is provided in which a first notch and a second notch are respectively provided on the front surface and the reverse surface of a fixed base of a second hinge arm, and a torsion spring is formed from a single length of spring wire rod so as to have a torsion shaft portion supported in the first notch, a fixed end portion supported in the second notch, a free end portion rotatably supporting a roller, a U-shaped fixed arm portion providing a connection between the fixed end portion and one end of the torsion shaft portion, and a U-shaped movable arm portion providing a connection between the other end of the torsion shaft portion and the free end portion. This provides a checker-equipped door hinge that has a simple structure for mounting the torsion spring in the second hinge arm, together with good ease of mounting.

Abstract: A checker-equipped door hinge includes a checker that is provided between first and second hinge arms and imparts a stepwise limiting resistance to pivoting of the two hinge arms relative to each other. The checker includes a check cam that is formed separately from the first hinge arm and is fixedly attached to the first hinge arm; a roller that can sequentially engage with detent notches of the check cam in response to the pivoting of the two hinge arms relative to each other; and a torsion spring that is mounted in the second hinge arm while supporting the roller with its free end portion, the torsion spring biasing the roller in a direction in which it engages with the detent notches. Thus, a plurality of types of checker-equipped door hinges having various check properties can be provided at low cost by standardizing the hinge arm.

Abstract: A cabinet door buffer bar includes a hollow tube, a shaft, an elastic element and a sliding member. The sliding member and the inner wall of the hollow tube form different intervals there between so that a resilient member mounted thereon receives varying constraints and generates different buffer forces in different moving directions thereby provides the cabinet door a required buffer force to avoid generating annoying noise and incurring damages during closing of the cabinet door.

Abstract: The invention relates to a damping device for movable furniture parts, for example for doors or drawers, comprising a piston or plunger which is slidably guided in a hollow body, e.g. a cylinder, with said piston or plunger being impinged upon by spring force into its pushed-out position. According to the invention, the hollow body comprises at least one section of a spiral-shaped stay of the internal screw thread, and/or the piston or plunger comprises at least one section of a spiral-shaped stay of the external screw thread. The stays of the screw threads are glidingly supported one on top of the other, or cams or journals of the hollow body or of the piston or plunger are supported on a screw-thread section of the other component. The pitch of the stays of the screw threads is greater than the pitch at which self-locking occurs.

Abstract: An anti-rattle door assembly includes a first member and a second member. The first member includes a first base plate and a roller disposed on the first base plate. The second member is configured to receive the roller of the first member. The second member includes a bumper that is configured to at least partly enclose the roller of the first member when the first member and the second member are engaged.

Abstract: An improved laterally resilient and displaceable mechanical door bumper for moving an elongated retractable shaft. The body or mold of the door bumper includes a base portion in which mounting screws are firmly anchored into the wood of the adjacent door portion. The door bumper shaft includes a rubber end piece that is glued and snapped onto the end of the door bumper shaft for cushioning the impact of the door bumper against a wall. The side of the door bumper receives rollers which are attached to the side portion of the mold and can be compressed during impact. The rollers are adapted to contact a door frame, which forces the door bumper shaft to retract. The door bumper is devoid of separable parts or sharp edges that might injure persons, particularly children, who come in contact with the door bumper.

Abstract: A hinge for pivoting a flap, and in particular, to a hinge for pivoting a flap on a motor vehicle. The hinge aids the closing of the flap and includes two linkages or legs which are arranged rotatably around at least one axis of rotation and are connected with one another. A transmission is arranged for transmitting a torque formed during a closing movement of the hinge to a flywheel mass for the accumulation and subsequent aiding and continuation of the closing movement.

Abstract: Door check mechanism including a rack adapted to be coupled to and extend outward from the frame, a gear adapted to be arranged on the door, the gear having teeth and being arranged in engagement with the rack and a detent mechanism arranged in engagement with the rack and the gear for enabling the door to be positioned in a plurality of fixed positions and for preventing movement of the door to a different fixed position when a force exerted upon the door is below a threshold. The detent mechanism may include a cam having a pawl in engagement with the rack and a detent and a spring for biasing the detent against the gear to press the gear against the rack. The gear is rotatable along the rack which each position in which the pawl engages one of the teeth being a possible position of the door.

Abstract: A door stop is provided comprising a first vertical plate for mounting to a wall and second horizontal pivot plate affixed to and extending outwardly from the wall-mounting plate. A third elongated member is pivotally mounted at its inner end to the pivot plate and at its outer end extends outwardly to a normal position perpendicular to the wall for making contact with a swinging door. A means is associated with the pivot plate for releaseably locking the third member in its normal position. In use, the door stop remains in its normal position until the elongated tube is struck by an object, such as a vacuum cleaner or mop. The impact releases the third member from its locked position and allows it to swing about its pivot point on the pivot plate to an out of the way position substantially parallel to the wall.

Abstract: An adjustable grip clasping device which comprises a post and a catch that clasps the post to hold an entry door open or a cabinet door closed. The catch may be mounted on a door and the post mounted in a door frame or wall baseboard, or the positions reversed. The catch utilizes a clamshell-like clasping mechanism to grip the post, and includes provision for a manual adjustment of the strength of the catch grip to suit an acceptable pull strength for release of the post from the catch. The device is inexpensive to produce, and readily adaptable for a broad range of clasping applications that include temporarily holding and securing light weight objects.

Abstract: An apparatus for the damping of impacts, preferably the impacts of furniture doors or drawers, consists of a cylinder with a piston whose piston rod sealingly guided out of a cylinder side forms a ram absorbing the impacts which divides the cylinder space filled with a liquid into two chambers and has perforations and/or, together with the cylinder wall, bounds a passage gap. A guide bushing guiding the piston rod is arranged in the region of the discharge end of the cylinder. A compression spring is clamped between the piston and the cylinder bottom. To ensure a smooth and quiet running with a compact construction, the guide bushing has a central shaft part of reduced diameter. A widened end part of the guide bushing is supported on a step or annular flange constricting the inner diameter of the cylinder and the guide bushing is supported at the other end on a cover closing the cylinder. The shaft part of the guide bushing is encompassed by a tube-section-like part made of elastic material.

Abstract: A door support system for supporting a vehicle door on a vehicle body for movement in opening and closing directions includes a door hinge system and an infinite door check system. The door hinge system includes a pair of first mounting structures and a pair of second mounting structures pivotally coupled to provide for movement of the vehicle door relative to the vehicle body. The infinite door check system includes first and second one-way check devices. The first one way check device applies a biasing force to resist movement of the vehicle door in the closing direction, and the second one way check device applies a biasing force to resist movement of the vehicle door in the opening direction. Each of the check devices includes a biasing structure that provide the biasing force and a clutch that enables or disables the application of the biasing force to the vehicle door.

Abstract: A magnetic door stop/latch contains a first magnet mounted on or within a door and a second magnet mounted on or within a structure opposing the door, such as a wall, door jamb, door frame or baseboard. When the door is moving towards the opposing structure, the magnetic door stop may used to prevent the door from slamming into the opposing structure by virtue of the repulsive forces of the magnets. The magnetic door stop/latch may be switched from repulsive configuration to an attractive configuration that holds the door in position.

Abstract: A multi-function door stop is provided comprising a first vertical plate for mounting to a wall and a second horizontal plate affixed to and extending outwardly from the first plate. A hollow elongated tube extends outwardly in a direction away from the second plate in a normal position substantially perpendicular to the first plate. An extension member is interposed between the second plate and the elongated tube, the extension member being fixedly secured at one end to the second plate. The elongated tube is pivotally connected to the other end of the extension member permitting adjustment of the tube to a ninety degree impact with the door. A means is associated with the extension member for releasably locking the tube in its normal position. In use, the door stop remains in its normal position until the elongated tube is struck by an object, such as a vacuum cleaner or mop.

Abstract: A door checker for an automobile includes a case secured to a door, and a check plate mounted to extend through the case and supported on a body. A pair of detent members and resilient means for urging the detent members against opposite sides of the check plate are accommodated in the case. The check plate is provided with notches in which the detent members are brought into engagement to retain the door at a predetermined medium opening degree, and with a full-opening stopper means adapted to receive an outer side of the case to define an opening limit for the door. In the door checker, a section of each of the opposite sides of said check plate, where each of the detent members is moved from the medium opening degree to the opening limit for the door, is formed as a continuous surface having no unevenness.

Abstract: A door safety barrier for being positioned adjacent a doorway having a door mounted therein for interfering with movement of the door relative to the doorway. The door safety barrier defines a security opening between the door and the doorway for preventing entry therethrough, and includes a housing for being embedded into a floor adjacent the door. The housing defines a chamber therein. An elongate plunger is positioned within the chamber for reciprocating movement between an extended, operative position above the floor for engaging a side of the door to prevent movement of the door past the plunger, and a retracted, inoperative position below the bottom of the door for permitting passage of the door over the plunger. A latch assembly cooperates with the housing and the plunger for alternately locking the plunger in the extended, operative and retracted inoperative positions, respectively.

Abstract: The invention relates to an infinitely variable door arrester (1), especially for vehicle doors, that comprises the following components: a stationarily mountable first retainer (2), a second retainer (4) that is linked with the first retainer (2) so as to be movable with respect to the first retainer and that is linked with a door, mechanical stopping means (6) that block the two retainers (2, 4) within their range of movement in any relative position to each other in both directions of movement, elastic coupling means (14) that facilitate minimal, relative, elastic control movements in any relative position of the retainers (2, 4) blocked by the stopping means (6) by impinging the retainers with a control force, and control means (16) that control the release of the stopping means (6) in the blocked state by an elastic control movement resulting from the control force.

Abstract: A braking retardation apparatus for doors, windows or the like has a piston pressable into a cylinder against the force of an expelling spring, with the element to be braked acting on the piston rod of said piston. To provide such a braking retardation apparatus with a reduced effort, a grease with high viscosity is applied to the wall of the cylinder.

Abstract: A multi-function door stop is provided comprising a first vertical plate for mounting to a wall and a second horizontal plate affixed to and extending outwardly from the first plate. A hollow elongated tube extends outwardly in a direction away from the second plate in a normal position substantially perpendicular to the first plate. An extension member is interposed between the second plate and the elongated tube, the extension member being fixedly secured at one end to the second plate. The elongated tube is pivotally connected to the other end of the extension member permitting adjustment of the tube to a ninety degree impact with the door. A means is associated with the extension member for releasably locking the tube in its normal position. In use, the door stop remains in its normal position until the elongated tube is struck by an object, such as a vacuum cleaner or mop.

Abstract: A damper device includes a damper main body, and a grommet fixed to a fixing member. The damper main body includes a shaft portion having a plurality of engagement projection portions extending along a peripheral direction at predetermined intervals in an axial direction thereof. The grommet has a tube portion, an engaging device to be fixed to the fixing member formed outside the tube portion, and an elastic anchor piece disposed inside the tube portion to engage the engagement projection portions of the shaft portion pressed into the tube portion. When a stopper is formed outside the shaft portion and tightened to the grommet, the damper main body can be securely fixed to the grommet.

Abstract: A door stop is provided comprising a first vertical plate for mounting to a wall and second horizontal pivot plate affixed to and extending outwardly from the wall-mounting plate. A third elongated member is pivotally mounted at its inner end to the pivot plate and at its outer end extends outwardly to a normal position perpendicular to the wall for making contact with a swinging door. A means is associated with the pivot plate for releaseably locking the third member in its normal position. In use, the door stop remains in its normal position until the elongated tube is struck by an object, such as a vacuum cleaner or mop. The impact releases the third member from its locked position and allows it to swing about its pivot point on the pivot plate to an out of the way position substantially parallel to the wall.

Abstract: A door holding device is disclosed for wedging a door relative to a ceiling for preventing swinging or falling over of the door during painting thereof. The device includes a tubular member having a first and a second end. A biasing device having a first and a second extremity is disposed within the tubular member so that the first extremity of the biasing device abuts against the first end of the tubular member. A piston having a first and a second termination is slidably disposed within the tubular member so that the first termination of the piston abuts against the second extremity of the biasing device such that the piston is urged by the biasing device axially away from the first end of the tubular member. A door engaging fastener is rigidly secured to the first end of the tubular member such that in use of the device, the door engaging fastener is disposed between the door and the first end of the tubular member.

Abstract: An improved door stop for a sliding door to reduce damage to vehicle tires passing over the door stop includes a vertically oriented housing to be embedded in the floor in alignment with the sliding door. A top block supported by a spring is slidable within the housing. A door guide is mounted to the top surface of the top block and extends above it to engage the bottom of the sliding door when the sliding door is moved to a position above the door stop. The top block remains flush with..the top of the housing and the ground surface when the spring is at rest.

Abstract: The buffer device (10) has a body (11) which can be fitted in a rail (4), a damping element (12) for cushioning, and a retaining spring (13) for retaining a running mechanism (6) which is guided in the rail (4) and is provided for carrying and guiding slidable wing elements (2). The at least approximately U-profile-shaped body (11) of the buffer device (10), which body is punched and bent from a metal element, has a first and a second wing (14; 18), which wings are connected to each other by a central piece (20) whose tongue-shaped extension forms the retaining spring (13) serving to retain the running mechanism (6). The end pieces (17, 19, 26; 17*, 19*) of the wings (14; 18) are configured in such a manner that they are suitable for retaining the damping element (12). The buffer device (10) can be manufactured cost-effectively from a single metal plate and can be completed by a damping element (12).

Abstract: The invention is directed to a simply designed and easy-to-operate brake retardation apparatus in which a push rod is moveable in guides of a housing and possesses a section formed as a gear rack which meshes with a pinion of a shock absorber also retained in the housing.

Abstract: A device (10; 10a) for guiding and limiting the travel of a sliding door element (1) has a receiving and stop element (12; 12a; 12b; 12c) which cooperates by positive engagement with a centering element (11; 11a). It is proposed that the centering element (11; 11a) be embodied with a wedge-shaped portion (18; 29) and that the receiving and stop element (12; 12a; 12b; 12c) be embodied with a V-shaped portion (19; 40). The device (10; 10a) is especially simply embodied and requires only little effort for assembly.

Abstract: A vehicle door checkstrap assembly is provided including an arm having the first end engaged to the frame and a second end interconnected to a brake member within the vehicle door. The brake member cooperates with a carriage assembly which slidably engages a guide track incorporated in the vehicle door. A load is exerted from the brake member toward a support face within the door which creates a braking force when the door is in a static state. When the door is moved, the opening force is capable of overcoming the friction between the brake member roller and the supporting face allowing free motion of the door along the guide path. The roller carriage assembly operates such that the door can be located securely in an infinite number of positions between fully open and closed.

Abstract: An assembly for releasably holding a movable closure element in a desired position relative to a support. The holding assembly has a first part with a first element and a first actuator and a second part with a second element and a second actuator. The first part is connectable to a closure element, with the second part connectable to a support for the closure element. At least one of the first and second elements is movable relative to a support and/or closure element to which the at least one of the first and second elements is connected to allow the first and second elements to act, one against the other, so that the first and second elements realize a holding position as a closure element to which the first part is connected is moved towards and into the desired position.

Abstract: An infinite door check mechanism for enabling a door to be moved from a closed position in a door frame to any one of a plurality of different open positions including a clevis adapted to be mounted to the frame, an elongate strip member mounted to the clevis and directed outward from the frame, a door check housing adapted to be mounted on the door, the strip member extending at least partially through the housing, and a support member arranged in the housing. A rotatable locking member is arranged in the housing such that the strip member is interposed between the locking member and the support member. A biasing member such as a spring is positioned in the housing for selectively pressing the locking member against the strip member to force the strip member against the support member and thereby retain the strip member in a fixed position resulting in checking of the door and releasing pressure of the locking member against the strip member and thereby enable movement of the strip member.

Abstract: The door stopper of the present invention is of a construction such that a door contacting member fitted into a guide cylinder sunk vertically into the floor is allowed to be set in two positions, in a door contacting state in which it protrudes from the floor and in a housed state in which the top is substantially level with the floor. According to this construction, the floor is able to be substantially flat when the door stopper is not in use so that it does not become an obstruction to floor polishers and wheelchairs.

Abstract: A doorstop device to automatically and securely fix the door to be retained at the same opened position comprises a door member 11 mounted on a bottom side of a door 10 and including a magnet 12 and an elastic fixing member 17, and a floor member 15 buried in a floor face 18 and having a movable piece 16 which is attracted to the magnet 12 and engages with the elastic fixing member 17. As the door opened, the movable piece 16 of the floor member 15 projects and attaches to the magnet 12 of the door member 11, and the elastic fixing member 17 presses and holds the movable piece 16, thereby fixing the door 10 to be retained at the same position.

Abstract: A door stop for hollow walls having two drywall surfaces. The door stop comprises a cylindrical housing having an outwardly turned flange serving as a trim plate engaging the drywall surface exposed to the door knob of a swinging door. The flange is located at the exposed end of the housing. A piston occupies and is entrapped within a chamber formed in the housing. The piston is exposed to the door knob and presents surface roughly flush with the outer surface of the wall. The piston receives impacts when the door is swung so that the door knob strikes the wall. A spring inside the housing decelerates the piston responsive to the door being swung until contact with the wall ensues, and subsequently returns the piston to its original position. The chamber of the housing communicates to the exterior by a small orifice, so that piston movement is pneumatically dampened.

Abstract: The present invention relates to a door check device comprising a first and second link member engaging structure and a housing. An elongated link member has a first opposing end that provides a connecting portion, a second opposing end, and an intermediate portion that extends between the first and second opposing ends thereof and provides first and second opposing face surfaces. The intermediate portion has first and second detent regions that extend generally in a transverse direction of the link member on the first and second opposing face surfaces thereof, respectively. Biasing structure is constructed and arranged to bias the first and second engaging structures relatively towards one another to thereby urge the engaging structures into engagement with the first and second opposing face surfaces of the intermediate link member portion, respectively.