Abstract: A locking device disposed on a casing and suitable for buckling up with a detachable object is provided. The locking device includes a base, an actuating element, and a driven latch. The base has a body fixed at the casing and a first slide track passing through the body. The actuating element has a first sliding block passing through the body and moves between a first position and a second position along a first axis via the first sliding block slidingly connected to the first slide track. The driven latch is slidingly disposed at the base and slides between a third position and a fourth position along a second axis. The driven latch and the actuating element are located at two opposite sides of the base. The driven latch has a second slide track and a locking portion. The first sliding block is slidingly connected to the second slide track.

Abstract: A lock unit (1) for a motor vehicle, comprising at least a catch (2), a first pawl (3) having a pawl rotation axis (4), and a blocking lever (5), in which the catch (2) in a locked state of the lock unit (1) transfers a pivoting moment onto the first pawl (3) and in which the first pawl (3) is fixed by a blocking lever (5) and in which a second pawl (6) is provided that is mounted on the pawl rotation axis (4) and is engageable with the blocking lever (5) and the catch (2).

Abstract: A drum band assembly for securing a lid to a drum. The drum band assembly includes a band having a first free end and a second free end and an attachment device connected to the band, wherein the attachment device is adapted for removably attaching the band to the drum. The drum band assembly further includes a lid mounting device attached to the lid and the band, wherein the lid mounting device is adapted to allow the lid to open and close on the drum.

Abstract: A plastic sealing fastener includes a fixing member, a locking member defining a locking slot, a latching strip formed on the fixing member and a cover fixed on the fixing member. The locking member forms a locking portion in the locking slot. The cover defines a covering hole communicating with the locking slot, and a size of the covering hole is less than that of the locking slot. The locking portion comprises, for example, three locking teeth.

Abstract: A hood stay apparatus for an engine room in heavy construction equipment. The hood stay apparatus can safely keep an engine hood in an open state even if an external force is abruptly generated due to vibration, wind, and the like. The hood stay apparatus can also facilitate an opening/closing operation of the engine hood.

Abstract: An adaptive cruise control device in a front part of a motor vehicle has a sensor unit fixedly connected to a crossmember of the vehicle body. The sensor unit has a sensor eye. A screening panel assembly is arranged at the front in a manner adjusted to fit a passage opening in the front part of the vehicle. The screening panel assembly has a holding frame mounted behind the passage opening. The holding frame has an opening exposing the sensor eye. An outer panel frame is mounted to the holding frame at the opening of the holding frame to partly surround and expose the sensor eye. An inner sensor panel is between the outer panel frame and the sensor unit and has an opening surrounding and exposing the sensor eye.

Abstract: A bumper assembly for an automotive vehicle comprises a bumper beam for connection to a frame of the vehicle and an energy absorbing component extending laterally adjacent a front surface of the bumper beam. The energy absorbing component comprises a plurality of laterally-spaced bands, each band comprising an upper wall, a lower wall, and a forward wall. The bands are connected along adjacent rear edges of the upper walls and/or adjacent rear edges of the lower walls, such that the bands are decoupled from one another forward of the rear edges. This construction allows the bands to deform individually during a pedestrian collision, the upper and lower walls buckling to absorb energy in an optimum manner. The energy absorbing component may be attached to the bumper beam by upper and/or lower lateral strips have mounting features for fitting into interference-fit engagement with mating features on the bumper beam.

Abstract: A securement device to make it much easier for a user to securely hold onto a personal, hand-held, tablet-shaped device such as an electronic reader, a tablet computing device, a cellular phone, a personal data assistant, and a common clipboard—while minimizing the fatigue and discomfort on the user's hands: A typical device solves this problem by providing a system of one or more finger holds formed with a fabric or pliable material that are disposed on the back side of the personal, hand-held, tablet-shaped device. In many devices, the position and fit of the finger holds are easily adjustable by a user via hook-and-loop schemes.

Abstract: A vertical bore coil lifter for lifting coils of steel with reduced risk of the coil telescoping includes a pair of inside legs dimensioned to fit inside the bore of the coil with remote legs to support inner wraps of the bottom of the coil. Opposed outer legs traverse the outside of the coil and terminate in outer legs that oppose the inner legs. The outer legs supporting outer wraps of the coil and prevent telescoping of the coil while it is being lifted. The lifter may be selectively brought from an open configuration, in which the feet are drawn apart to release or receive a coil to a closed configuration in which the opposed feet are drawn together to cooperate in supporting the underside of the coil. In one embodiment an automatic latching and unlatching mechanism is provided to alternate between the release and closed configurations without need for operator intervention.

Abstract: A loading device using multiple handles with straps or loops dispensable sequentially to at least one but preferably two loading arms is shown for loading and closing bags with handles. While one loading arm may be used, two or more loading arms are preferable and these arms rotating about a stand above a loading and unloading area is preferable. A support which moves with the loading arms to support the bags as they sit on the loading arm. The multiple arms may be dispensed as a plurality of sequential straps and handles that are connected together so they can be fed steadily onto the loading arms on either side as they are used. The device is specifically designed to be used in conjunction with a bag loader so that the user may load the bags and then put them over the straps on one or more rack arms and then close and lift the bags utilizing the handle running through either a loop formed by the straps or an opening provided in a strap for that purpose.

Abstract: A hand operated reaching device is provided that comprises a rigid rod member, a handle coupled to the rigid rod member, and an attachment head coupled to the rigid rod member. The attachment head comprises an attachment mechanism configured to engage a pull device coupled to a door of an elevated doorway, such as an attic door. When a downward force is applied to the hand operated reaching device while the attachment mechanism is engaged with the pull device, the downward force causes the door to open downward. A system is further provided that comprises the hand operated reaching device, the pull device, and an optional fastener for fastening the pull device to a door of an elevated doorway.

Abstract: An exterior vehicle body assembly comprises a vehicle body panel and an exterior vehicle trim. The vehicle body panel includes a first mounting portion having a first pivot structure and a first attachment structure spaced from the first pivot structure. The exterior vehicle trim includes a second mounting portion having a second pivot structure and a second attachment structure. The second pivot structure mates with the first pivot structure such that the exterior vehicle trim is pivotally supported about a pivot axis defined by the mating of the first and second pivot structures between an initial installation position and a final installed position. The pivot axis extends in a vehicle heightwise direction of the exterior vehicle body assembly, and the first and second attachment structures are aligned with each other with the exterior vehicle trim being in the final installed position with respect to the vehicle body panel.

Abstract: A hitch attached extension for over sized cargo has a longitudinally extending frame member adapted to be removably attached to a trailer hitch of a motor vehicle. The longitudinally extending frame member including a draw bar located at a distal end adapted to be connected with the trailer hitch, a pivot member adjacent the draw bar forming a pivot axis adapted to allow the longitudinally extending frame member to be pivoted between a horizontal position and a vertical stowing position with respect to the trailer hitch.

Abstract: An armor panel assembly may comprise a set of bolts for attaching to a vehicle hull, an inner panel demountably attached to the bolts, and at least one outer panel demountably attached to the inner panel. The assembly may include a support panel for attaching the bolts to the hull and may further include brackets for mounting the support panel to the hull. Further, a kit of parts for forming a vehicle armor panel assembly may comprise a set of bolts for attaching to a vehicle hull, an inner panel demountably attachable to the bolts, and at least one outer panel demountably attachable to the inner panel.

Abstract: A motor vehicle is provided having at least one storage compartment, a storage compartment having at least one accommodation unit, and an accommodation unit for a storage compartment of a motor vehicle, including a plurality of frame sections making up a frame, with which the frame may mounted so as to be movable in the storage compartment, wherein in a space defined by the frame at least one retaining element of variable shape and connected to at least two frame sections is arranged to extend between the frame sections in the defined space, forming at least one restraining area.

Abstract: A storage assist device for a vehicle seat selectively changes in position between a use and a storage position. The device includes a supporting member for supporting a rotating shaft fixed to the seat cushion; a link member having a fixed portion fixed to the rotating shaft and an engagement portion provided at a position spaced from the fixed portion; a fixing member provided on the vehicle body floor side and disposed at a predetermined distance from the rotating shaft; and an urging spring mounted in a tensioned condition between the engagement portion of the link member and the fixing member that can apply the urging force in the urging direction. The link member is fixed to the rotating shaft such that the entire length of the urging spring is shortest when the seat center of gravity is located on a vertical surface including the rotating shaft.

Abstract: A motorcycle includes a first cable disposed inside an inner cowl, and a second cable which is disposed between the inner cowl and an outer cowl and is connected to the first cable. The inner cowl is provided with a through-hole through which to pass the first cable or the second cable. The through-hole is provided with a recess by which a part of the first cable or the second cable is locked. This enables wiring of short cables to easily connect two kinds of cables.

Abstract: A clamp structure for a tonneau cover of a pick-up truck is disclosed and mounted to one frame section of a tonneau cover for releasably securing the frame section on a side wall of a cargo bed of the pick-up truck. The clamp structure has a composite grip element which has a metal grip body and a plastic sleeve. The metal grip body has an engaging portion to stably engage with the side wall of the pick-up truck. The plastic sleeve has a first abutment flange to smoothly abut against a turning handle, and a second abutment end facing a sliding block. Thus, the composite grip element can provide advantages of both of metal and plastic material, so that the operational stability and reliability of the clamp structure can be enhanced, and the lifetime thereof can be elongated.

Abstract: A locking device for locking a displaceable motor vehicle part which is lockable by the means of the locking device within a displacement range in a respective rest position reached by displacement is provided. The locking device comprising a braking device with at least two braking elements which interacts in a braking manner in a respective rest position of the motor vehicle part in order to lock the motor vehicle part, and which can be brought into a position without braking engagement by inducing a release force into the braking device. An actuator is assigned to the locking device, which is optionally combinable with the braking device and with which a displacement movement of the motor vehicle part is brakable for locking the motor vehicle part.

Abstract: The interior trim assembly, comprising: a trim panel (16) comprising a panel screen (20) having a front surface (20A) and a rear surface (20B), the panel comprising a screen opening (24) extending through the panel screen (20); an insert (18) assembled to the rear surface (20A) of the panel screen (20), said insert (18) comprising an insert screen (26) covering at least partially the screen opening (24) and at least one support flange (28) extending from the insert screen (26) and resting on the rear surface (20B) of the panel screen (20), the insert (18) comprising a hooking flange (30) fitted into a groove (42) of the panel (16) in such a manner as to prevent the insert (18) from translating with respect to the panel (16) such that a support flange (28) moves away from the rear surface (20B) of the panel screen (20).

Abstract: A vehicle window panel mounted in a window opening formed in a vehicle to close the opening includes a panel body obtained by molding a resin material. A light-transmitting window is integrally connected to the panel body, and a protrusion is integrally connected to the panel body to protrude toward at least one of an inside or outside of the vehicle.

Abstract: The wheel-less camper comprises at least one jack mounted to the camper, the first jack being disposed inside the first sidewall. The camper may include a second jack, the second jack being disposed inside the second sidewall. Each wall of the camper may have an inner wall and an outer wall, the first jack being disposed between the inner and outer wall of the first sidewall and the second jack being disposed between the inner wall and outer wall of the second sidewall. The camper may also include third jack and a fourth jack. In one embodiment, the inner walls are omitted. In another embodiment, the inner wall includes a bulged area or an unevenness to accommodate one or more of the jacks. In another embodiment, the first jack may be a pull-out jack that is movable between a first position in which it is disposed inside the first sidewall and a second position in which it extends out from the first sidewall. The camper may include a second pull-out jack.

Abstract: Apparatus and operation methods for telescoping slide out systems for a recreational vehicle (“RV”). Telescoping slide out systems can comprise an outer box shiftable relative to the body of an RV and an inner box shiftable relative to the outer box. In certain embodiments, when the telescoping slide out system is in a retracted position, no interface between the outer box and the inner box is visible from the exterior of the RV.

Abstract: There is provided a structure for mounting an attachment for vehicle capable of absorbing the marginal difference of a front spoiler and reducing the procedures for controlling the dimension of the front spoiler. The structure for mounting a front spoiler on a front bumper includes: a male clip provided on the front spoiler; an insertion hole provided on the front bumper for inserting the male clip therethrough; and a female clip engaged with the male clip and allowing the front spoiler to be held by the front bumper. The male clip is loosely inserted through the insertion hole and engaged with the female clip around the insertion hole via an abutting brim, thereby producing a gap between the insertion hole and the male clip, thus increasing the degree of freedom of positional adjustment, reducing the steps for mounting and controlling the accuracy of the attachment, reducing the overall cost.

Abstract: A drag reduction device secured to each of the top rails of a wheeled cargo van body or container which covers the recess formed in the outer side of the top rail.

Abstract: In a center pillar structure, the strength of a center pillar is locally low at a weak portion and at a weak portion. Thus, when a vehicle is hit on the side, the center pillar bends at the weak portion and at the weak portion, and the other vehicle advances substantially horizontally. This can reduce the bending moment generated in the center pillar due to advancement of the other vehicle, so it is possible to control deformation of the center pillar in the event of a side collision while ensuring the strength of the center pillar.

Abstract: A frontal structure of a vehicle includes: a dashboard lower section; and a damping panel connecting to the dashboard lower section, wherein the dashboard lower section includes an upper rim flange and a front wall including a bending shape; and the damping panel includes a bead curved more gradually compared to the bending shape.

Abstract: A vehicle (1) includes first and second rear-floor cross members (4, 5) provided between right and left rear-floor side members (2, 2) in a vehicle body rear part and a pair of right and left rear-floor cross member braces (6, 6) provided therebetween. The second rear-floor cross member is formed by a three-member connected body consisting of right and left extension parts (52, 52) connected to the right and left rear-floor side members and a body part (51) arranged therebetween. The rear-floor cross member braces are connected to the body part (51) of the second rear-floor cross member. Shock energy of a shock load applied to the vehicle body rear part from the rear can be absorbed efficiently while the deformation of a rectangular region surrounded by the first and second rear-floor cross members and the right and left rear-floor cross member braces is restrained.

Abstract: An air duct for a vehicle includes a housing and a ductile member. The housing is formed from a first extrudable material having a first elastic modulus, and a second extrudable material having a second elastic modulus that is different from the first. The housing has a central longitudinal axis, defines a cavity therethrough along the axis, and is transitionable from a preform configuration in which the axis is substantially straight, to an installation configuration in which the axis is tortuous. The ductile member is embedded within the housing and is formed from a third extrudable material having a third elastic modulus that is greater than each of the first and second. The ductile member is bendable to transition the housing from the preform configuration to the installation configuration and is configured for retaining the housing in the installation configuration. A vehicle includes the air duct.

Abstract: A rocker panel assembly for attachment to a vehicle, comprising a rocker panel body, a first end feature situated on a first end of the rocker panel body, and a second end feature situated on a second end of the rocker panel body. The rocked panel body has an outside surface generally presented in the form of a convex surface, and an inside surface generally presented in the form of a concave surface. The outside surface of the rocker panel body extends outwardly of the vehicle, to present an outboard section having a predetermined profile based on targeted aesthetic/performance characteristics. The inside surface of the rocker panel body has at least one transverse rib positioned therein, the transverse rib being arranged generally perpendicular to the longitudinal axis of the rocker panel body.

Abstract: The present disclosure concerns embodiments of an operating support that supports a surgeon in a sitting position straddling a patient. By straddling the patient, the surgeon is ideally positioned to perform certain types of laparoscopic surgery, such as pelvic surgery, which requires the use of relatively long surgical instruments. The operating support supports the surgeon in a more ergonomically correct position that reduces the stress and strain on the surgeon's body as compared to the conventional technique of performing laparoscopic surgery in a standing position at one side of the operating table.

Abstract: A bicycle seat assembly having an adjustable width nose portion includes an H-shaped base that supports a lateral left side pad and a lateral right side pad. A rail extends under the base and between the left and right side nose portions of the seat assembly. A front rail mount includes a housing, a shuttle, an actuator, and left and right mount supports. Operation of the actuator alters the position of the left and right mount supports relative to the housing and thereby alters a distance between the respective left and right side nose portions of the seat base.

Abstract: A saddle-positioning apparatus includes a first positioning unit for positioning a saddle in a first dimension, a second positioning unit for positioning the saddle in a second dimension, and a lever connected to both of the first and second positioning units. The lever is movable from a neutral position in a direction to move the first positioning unit from a locking position to a releasing position to allow movement of the saddle in the first dimension. The lever is movable from the neutral position in an opposite direction to move the second positioning unit from a locking position to a releasing position to allow movement of the saddle in the second dimension.

Abstract: A chair having a seat rotatably attached to a tilt spring portion of a tilt mechanism such that the tilt spring is activated by movement of the seat. A backrest and/or the seat can be rotatably connected to the tilt mechanism by parallel arm arrangements which permit the seat and backrest to tilt relative to each other. A tilt limiter can have a magnetic member which facilitates full movement of the tilt limiter between free and locked positions, and which creates an audible indication of full movement of the tilt limiter. The seat/backrest can be made from a flexible mesh material secured to a rigid overmolding which surrounds and is attached to an inner frame of the seat/backrest wherein an outer surface of the overmolding forms an outer surface of the seat/backrest frame and attachment of the overmolding causes the inner frame to stretch the mesh to a final condition.

Abstract: A universal reclining armrest system for use with an articulated examination chair. The system includes an armrest adapter having a universal aperture for receiving a post portion of an armrest assembly. The armrest adapter further includes a splined peg for coupling to a pivoting mechanism of an articulated chair. The pivoting mechanism enables the chair to move throughout an operable range of motion while maintaining a fixed rotational position of an attached armrest adapter. The armrest assembly further includes an adjustable joint to provide 360° of rotational adjustment to the armrest relative to the fixed position of the armrest adapter.

Abstract: An auxiliary moving device contains a first cushion and a second cushion mounted on the first cushion. A rotating mechanism is retained between the first and second cushions, with the first cushion used to hold the second cushion by using the rotating mechanism. The second cushion rotates relative to the first cushion by ways of the rotating mechanism. A positioning mechanism is connected with the first and the second cushions, and second cushion is fixed on the first cushion by using the positioning mechanism.

Abstract: A seat frame reinforcement structure has a reinforcing member that is provided between both side frames that constitute a framework of a seatback of a vehicle seat, is connected to the side frames, and extends in the width direction of the vehicle seat. The reinforcing member includes a rod that is larger in diameter than each of operation pins that pass through center portions of reclining mechanisms, bushings that are connected to respective end portions of the rod, and a guide member that is connected integrally to the side frame so as to surround the outer periphery of a portion of the operation pin, which is exposed due to a clearance formed between an end portion of one of the bushings and the side frame. Due to the provision of the guide member, the diameter of the reinforcing member is maintained large even in a region where there is the clearance.

Abstract: The present invention provides for an automotive vehicle seat assembly allowing for fold flat functionality as well as sliding capabilities along a track located within the automotive vehicle. The seating assembly further including a plate. The seating assembly includes a handle bracket having an abutting edge, a biasing member connected to the handle bracket, and a planar bracket having a first end and a second end. The first end of the planar bracket having a stopper which abuts the abutting edge when in contact. The second end of the planar bracket operable to connect to a cable wherein the cable connects to a release mechanism allowing for movement of the seat assembly along the vehicle track.

Abstract: The invention provides a headrest for a dental treatment chair and a dental treatment chair wherein discomfort due to noise generated from dental treatment instruments can be reduced and communication between a dentist and a patient can be ensured. The headrest for the dental treatment chair and the dental treatment chair comprise a back head supporting member 91 for supporting a back of the head of the patient during dental treatment and ear supporting members 92 and 92 which can be bent in directions to cover ears of the patient at both ends of the back head supporting member 91. The ear supporting members 92 and 92 or the back head supporting member 91 has sound output sections 93 and 93 each for outputting a sound from a sound source, and the ear supporting members 92 and 92 have a sound collecting section 94 for collecting sounds in a surrounding environment. Acoustic filters 95 and 95 cut off frequencies higher than 8 kHz from a sound signal collected by the sound collecting section 94.

Abstract: An arm-rest device is constituted by including the following: an armrest body to be installed to a seat rotatably upward/downward; a ratchet mechanism including stationary-side first ratchet teeth, and movable-side second ratchet teeth rotating integrally with the armrest body; coiled springs for urging those in such a direction that they press one another; releasing cam units for releasing the ratchet mechanism from the meshing; elastic claws and a flanged portion for retaining that release; cut-offs for returning the ratchet mechanism to the meshing. And, the armrest body is made of resin, thereby integrally molding the second ratchet teeth at the time of its molding. It thus becomes an armrest device that is lightweight as a whole, whose assembly can also be done with less man-hour requirements, whose feeling of use is also satisfactory, and which is inexpensive and small in size.

Abstract: The present invention relates to an assembly chair assembled by plastic board, having a plurality of openings, a plurality of locking tabs, and a plurality of bending lines, and being capable of being bent and locked by hand and manpower for being formed into the assembly chair without any tools, or being capable of disassembling by hand and manpower for being formed into the plastic board without any tools, therefore, the assembly and the disassembly procedure can be easy; besides, the plastic board according to the present invention is flat before assembly, and being able to be stacked up for storage, therefore, the storage capacity of the plastic board is small, and the plastic board would not fall down when being stacked up for storage.

Abstract: A furniture system having a base frame, side pieces and a back portion, that assembles quickly and disassembles into a configuration that optimizes space when shipped.

Abstract: A height-adjustable deflection device that functions as the upper fastening point of a three-point safety belt which facilitates adjustment of the belt height and minimizes unintentional changes of the upper fastening point. The relative height of the upper fastening point of the belt is established by a slot formed in the device housing. In a locked position, the housing is engaged with a holder in a form-locking manner to securely establish the upper fastening point of the belt. In an adjustment position, engagement between the holder and the housing is prevented to enable free rotation of the housing about a swivel axle. The configuration of the housing geometry with respect to the swivel axle, the height of the outlet slot thereby changes during rotation of the housing. The relative height of the slot, i.e., the upper fastening point, can be readily established on an individual basis.

Abstract: A construction machine for the treatment of ground surfaces includes a machine frame, a drive motor, a work drum supported from the machine frame and including exchangeable tools fastened to the work drum, a belt drive and an auxiliary drive. The belt drive includes a motor-side pulley connected to the drive motor, a drum-side pulley connected to the work drum, and at least one drive belt connecting the motor-side pulley to the drum-side pulley. The auxiliary drive may be permanently coupled to the belt drive, or the auxiliary drive may include an adjustment mechanism for moving the auxiliary drive between a coupled and an uncoupled position.

Abstract: A rear hub assembly for bicycle includes a ratchet wheel and a hub body assembled with the ratchet wheel. The hub body has a first hub plate disposed on one end thereof. The first hub plate has a plurality of protrusions formed on an outer lateral surface thereof. A dodging portion is formed between every two adjacent protrusions. A plurality of recesses are defined in an inner lateral surface of the first hub plate. A plane portion is formed between every two adjacent recesses. The first hub plate has a plurality of bores defined therein and located on each protrusion and dodging portion. A first and a second stepped level difference are respectively defined between every recess and plane portion; and between every protrusion and dodging portion. A plurality of spokes engaged with the bores respectively and buckled the first hub plate.

Abstract: A parking brake interlock is provided according to the invention. The parking brake interlock includes a parking brake inlet configured to receive a parking brake air supply, a service brake inlet configured to receive a service brake air supply, an exhaust port, and an interlock valve mechanism in communication with the parking brake inlet, the service brake inlet, and the exhaust port. The interlock valve mechanism is configured to exhaust the parking brake air supply if the service brake air pressure is not received. The interlock valve mechanism is further configured to hold the parking brake air supply in order to generate a parking brake air pressure if the service brake air pressure is received.

Abstract: A hydraulic motorcycle braking system is disclosed. In the hydraulic motorcycle braking system a pump suction valve, which is situated in a braking circuit that does not contain an isolating valve or a change-over valve, has a higher opening pressure than a pump suction valve which is situated in a braking circuit provided with an isolating valve and a change-over valve. Accordingly, pressure oscillations initiated during the start-up of the pump cannot have a retroactive effect or only have a slight retroactive effect on the actuated brake master cylinder.

Abstract: A brake control apparatus is configured to suppress sounds while a vehicle is stationary. The brake control apparatus basically has a brake operation detecting section, a vehicle state detecting section, a braking force generating section, a braking force adjusting section and a brake control section. The brake operation detecting section detects a brake operation value indicative of an operation of a brake element. The vehicle state detecting section detects whether a vehicle is in a stopped state. The braking force generating section generates a braking force. The braking force adjusting section adjusts the braking force generated in the braking force generating section based on the brake operation value. The brake control section then control the braking force to prohibit reduction in the braking force when the brake operation value decreases while the vehicle is in the stopped state.

Abstract: A shell assembling device for assembling a shell having a first cover and a second cover is provided, the shell assembling device comprising: a plurality of rigid fitting structures provided on the first cover and second cover, and a plurality of elastic interference fitting structures provided on the first cover and second cover.

Abstract: A door opener includes a main bracket, a locking element, a compression spring, a rotation plate, and a torsion spring. The main bracket includes a lower plate and a first sidewall and a second sidewall oppositely positioned at edges of the lower plate. A guide rail and a resisting portion extend from the first sidewall opposite to the second sidewall. The first sidewall defines a through hole thereon. The locking element includes a sliding bar and a spacing block extending from a side of the sliding bar, the sliding bar supported on the guide rail, and the spacing block passing through the through hole. The compression spring is sleeved on the guide pole. The rotation plate is rotatably received in the main bracket, and a fixing block for latching with the spacing block extends from the rotation plate. The torsion spring resists the rotation plate and the lower plate.