Abstract: A medical pendant assembly has an anchor plate that is attachable to a roof structure and a first rotation shaft that includes a shaft outer ring, a shaft inner ring, and a ball spacer sleeve. The ball spacer sleeve is disposed between the shaft outer ring and the shaft inner ring. A lower portion of the shaft outer ring includes a first flange. An upper portion of the shaft outer ring includes a second flange. The second flange of the first rotation shaft is either attached directly to the anchor plate or attached to the anchor plate via an extension assembly. A first arm is attached to the first flange of the first rotation shaft.

Abstract: A permanently affixed and travelling selector pin, car and weight plate selection mechanism for use with physical fitness equipment is disclosed including a segmented track and/or cut out cavern within the plate body for the car to travel within in either vertically or horizontally in order to select a different weight plate or cumulatively, more or less weight for an exercise. The selector pin and car mechanism features a selector pin which is not removable from the car and is inserted through the car which is contained by the track and or plate body shape and into a throughbore in the weight plate in order to engage with the selector stem.

Abstract: A shift knob structure includes a shift knob body and a cover member. Movement of the shift knob body in a direction of shaft axis is restricted by a securing member supported by a support part of the shift knob body being locked by a locking groove in the shift shaft. When the cover member is rotated relative to the shaft knob body, the securing member is deformed radially outward and the securing member is unlocked from the locking groove in the shift shaft so that the shift knob body can be removed from the shift shaft.

Abstract: A fracture reduction implant for treating a vertebral compression fracture and instruments and methods for implanting the fracture reduction device utilizing a minimally invasive lateral approach are described. The implant may be inserted into a fractured vertebra through a T-shaped cut formed in the vertebral wall. The T-shaped cut may be formed in the lateral aspect of the wall. After insertion, a portion of the implant may be elevated within the vertebral body to reduce the fracture. The implant may include a base assembly, elevator plate, and a support column. The support column may be locked to the base assembly after insertion.

Abstract: A coupling structure between a shift lever and a knob for a vehicle that includes an insert which is formed at a center thereof with an insert aperture and fixed within a knob, and of which a lower end is formed to protrude from the knob to the exterior. A shift lever rod is inserted into and coupled to the insert aperture and a skirt is formed to enclose outer peripheral surfaces of the shift lever rod and the insert. In addition, a plurality of elastic members are formed along the outer peripheral surface of the insert to protrude radially outward toward the knob by a predetermined angle and are formed to be elastically deformed and opened radially outward when the shift lever rod is coupled to the knob.

Abstract: A slidable conveying assembly may include a latch frame and a latch rod rotatably engaged with, and extending at least partially through the latch frame. The latch rod may include a latch paddle at a first end. The assembly may also include a notch frame configured to slidably engage with the latch frame and a notched bar that may extend at least partially through the front notch frame and that may include multiple notches. The assembly may also include a biasing mechanism operably coupled to the latch frame and the latch rod and configured to bias the latch paddle into the multiple notches such that the latch paddle is biased into removable engagement with the multiple notches as the latch frame slides along the notch frame.

Abstract: An automatic locking system is provided that is driven by the normal extension and retraction of the mast, reduces the inherent rotation and deflection of the mast due to clearances, and operates more smoothly and quietly than conventional locking systems. The locking system also fits reasonably within the existing footprint of a typical mechanical mast.

Abstract: A tent skeleton including a plurality of foot poles, a plurality of eave poles that are articulated at their end portions and are radially arranged, an eave connecting device and a locating device for fixing the foot pole. The eave connecting device includes a connecting member body and an eave connecting member articulated to the connecting member body, the connecting member body is fixedly arranged on an end of the foot pole. The eave pole includes an outer tube, an inner tube and a retractable locking device. The outer tube is fixedly connected to the eave connecting member; the inner tube is slidably sleeved in the outer tube; the retractable locking device is arranged between the outer tube and the inner tube. A tent is further disclosed.

Abstract: A seat assembly having a guide bushing. The guide bushing has an opening for receiving a support post. First and second engagement features are provided that are configured to engage the support post. The first engagement feature is configured to flex in response to a biasing force exerted by a biasing member.

Abstract: A G-hook for the mutual releasable connection of two prop portions of a telescopic construction prop has a pin and a hoop. The pin and the hoop are different, separate parts which are rotationally rigidly connected to one another, meaning the pin cannot rotate relative to the hoop because they are rigidly fixed to one another. The pin has a force introduction portion with a surface which is curved regionally and a force removal portion which is diametrically opposite the force introduction portion and whose surface is formed substantially planar.

Abstract: An extendable pole mechanism may be used with a pair of poles that are longitudinally movable to adjust the overall length of both poles. The mechanism may include a housing that receives the poles and a trigger that is moveable with respect to the housing to adjust the mechanism between a use condition, where the poles are held in a longitudinally relative fixed position, and an adjustment condition, where the poles are longitudinally moveable with respect to each other.

Abstract: A developing roller including a housing containing toner; and a developing roller installed in the housing and supplies the toner to an electrostatic latent image formed on a photoconductor, the developing roller including a cylindrical unit in the form of a hollow pipe and a power transmission unit connected to one end of the cylindrical unit and connected to a power transmission member for rotating the developing roller. Both ends of the cylindrical unit are supported by the housing and the power transmission unit is not restricted by the housing. Both ends of the cylindrical unit are supported by the housing and the power transmission unit is not restricted by the housing.

Abstract: An automatically extensible telescopic apparatus includes a first tube inserted in a second tube. A positioning unit includes a ferrule, two fins, a shaft, a toothed wheel and a first detent. The ferrule is provided on the second tube. The fins extend from the ferrule. The shaft is supported on the fins. The toothed wheel is supported on the shaft and includes teeth for insertion in recesses defined in the first tube. The first detent is supported on the fins for engagement with the toothed wheel. A handle includes two blades and a second detent. The blades are placed between the fins and supported on the shaft. The second detent is supported on the blades for engagement with the toothed wheel. An elastic element compressed between the first and second tubes for extending the first tube from the second tube.

Abstract: A post coupler includes coupler flanges, reverse bend flanges extending therealong and tapered end projections extending longitudinally from said coupler flanges defining ends of the coupler, the length of the reverse bend flanges being less than the overall coupler length between ends of the rounded end projections, and the reverse bend flanges preferably oriented along outer surfaces of said coupler flanges.

Abstract: An adjustable seat tubing device for a bicycle includes a tubing assembly, an adjusting unit and a controlling assembly, the tubing assembly including an outer tubing and an inner tubing, the outer tubing assembled to a bicycle, the inner tubing passing through the outer tubing, the adjusting unit assembled within the tubing assembly, the controlling assembly comprising a switch and an actuating member assembled to the switch and the adjusting unit. Under this arrangement, when a user presses the switch, the inner tubing is movable relative to the outer tubing, so that a height of the tubing assembly is adjustable to the user for riding bicycle comfortably.

Abstract: A cable-actuated latching mechanism is disclosed herein. In one or more embodiments, the cable-actuated latching mechanism includes an insert body having at least one groove formed therein; a bent elongated strip disposed in the at least one groove of the insert body; a detent coupled to the bent elongated strip; and an actuation cable or wire operatively coupled to the bent elongated strip, a portion of the actuation cable or wire being disposed in the insert body. When an axial force is applied to the actuation cable or wire of the latching mechanism, the bent elongated strip is elastically deformed and displaced inwardly, thereby displacing the detent in a similar inward manner. In one or more embodiments, the cable-actuated latching mechanism is configured to selectively prevent the relative sliding movement of an inner tubular member relative to an outer tubular member.

Abstract: The invention relates to a detent mechanism for controlling translation between two components in a longitudinal direction (P, D), the detent mechanism comprising at least one clip on one of the components arranged to be in a ramped engagement with a recess in the other one of the components in an initial state in such a manner that translation between the components is constrained and that application of a translative force between the components in one longitudinal direction (P, D) with the clip engaged with the recess deflects the clip out of the recess when a predetermined value of the translative force, at least depending on the resilience of the clip, is overcome so as to allow translation between the components.

Abstract: A coupler for coupling two posts end-to-end has ninety degree flanges and two reverse wrap ends. The coupler is slid one-half way over the ends of one formed post, comprising two flanges, with the reverse wrap holding the post flanges. Another flanged post is inserted into the coupler to engage the end of the first post, the coupler holding the posts end-to-end. An alternate embodiment coupler is disclosed.

Abstract: A telescopic tube joint (1) is provided for vacuum cleaner suction tubes or for tripods having at least one outer tube (2) and at least one inner tube (3). The tube joint includes a catch recess (5) in the inner tube (3), a catch element (8) on the outer tube (2) which are lockable or unlockable via a manually actuated, rotably movable slider (11) which moves the catch element (8) through an opening (10) in the outer tube (2). The catch recess in the inner tube (3) consists of a tooth strip (6) provided with a plurality of teeth (5) , formed on the outer peripheral surface of the inner tube (3). The catch element consists of a short toothed rack (8) having opposing teeth (7), which is pressed into force- and form-fit contact with the toothed strip (6) by the rotary slider (11) in a locked position when turned at a small angle (?).

Abstract: An integral mechanical lock for securing extensible and pivotal two member tools, comprising a first member having at least one notch and a second member having an integral lock that engages the first member notch locking the first member and second member in position. The integral lock includes a locking bar integrally formed with a support arm that is located between a pressure pad end and a locking end portion, the support arm provides an effective pivot point whereby when force is applied to the pressure pad end, the locking end portion is urged up out of the first member notch releasing the engagement between the first member from the second member. The integral lock may be constructed from a single flat sheet of metal, or further formed with bends or inclusion of other fixated pieces. A safety interlock shim feature works cooperatively with the pressure pad end by preventing the locking end portion from being urged from the notch when the safety interlock shim is located under the pressure pad end.

Abstract: A rapid locking hand knob construct includes a fixed threaded sleeve having an inner groove around its outer diameter that is mated to a rubber sleeve. One end of a first tube is connected to an inside diameter of one end of a fixed ring. The fixed ring has a groove provided around an outside diameter at an end thereof and an inner conical surface provided around an inside diameter at another end thereof. The tube hole at the end of a second tube is mated to a locking lining, wherein one end thereof includes an outer tapered surface that is inserted into an inner tapered surface of the fixed ring. A hole on the fixed threaded sleeve is secured into the groove of the fixed ring by a screw. A rotary rubber sleeve drives the movable thread sleeve up and down horizontally in the direction of the tube fitting.

Abstract: Detent actuators may comprise an elongate arm member, a detent button actuating surface, a receiving region, and a mounting structure. The detent button actuating surface may be sized and configured to actuate a detent button. The receiving region may be sized and configured to receive at least one of a finger and a thumb. The mounting structure may be sized and configured to facilitate mounting of the elongate arm to a structure that is selectively slidable relative to a structure comprising the detent button. Additionally, foldable apparatus may comprise a post comprising a detent button, a fitting slidably coupled to the post, and a detent button actuator coupled to the fitting. Methods of operating a detent button may comprise applying a force to a receiving region of a detent button actuator and depressing the detent button with a detent button actuating surface.

Abstract: A locking mechanism of a slide assembly includes a first rail with a first stop connected thereto, a locking member movably connected to a second rail which is slidably connected to the first rail. The second rail has a slide slot and a contact slot. The locking member has a guide slot and a positioning leg contacting an inside of the contact slot. The guide slot is an inclined slot and located relative to the slide slot of the second rail. A pin is movably connected to the slide slot and a part of the pin is located in the guide slot. The locking member is moved and the pin is guided by the guide slot and moves along the slide slot to a locked position where the pin is engaged with the first stop to lock the second rail to the first rail.

Abstract: A safety post mountable in a post holder includes an elongate tubular member and a locking device arranged inside of the tubular member. The locking device includes a lever and a bias spring device biasing the lever against an inner surface of the wall of the tubular member. The lever has a lock protrusion and a release protrusion extending through a first and second aperture portions of the wall, respectively. The lock protrusion is retractable to a release position inside of an outer surface of the tubular member by operation of the release protrusion in a counter biasing direction. The release protrusion has a support surface arranged to support the safety post against a support surface of the post holder, and the release protrusion is related to the lock protrusion such that, in the release position, the release protrusion is still protruding from said outer surface to an extent.

Abstract: A locking and release mechanism device for use with collapsible telescoping members, such as a tow bar that can be collapsed for ease of storage when not in use, and provide for attachment, locking and detachment regardless of load, e.g. to towed and towing vehicle devices regardless of vehicle static load relative to each other. Exemplary In embodiments of the invention include a locking mechanism using roller release members which are lever actuated, the roller release member according to the present invention cooperate with the telescopic members and related elements such that to release the locking mechanism members, a minimum lever force is required.

Abstract: The present invention is related to a desk structure. The desk structure comprises a writing surface, and a book box which is secured to the writing surface. A plurality of receiver sleeves are integrally molded with the book box. Each receiver sleeve has an outer wall and an inner wall. The inner wall of the receiver sleeve has a slot and a plurality of radially spaced ribs. The inner wall defines an opening. The desk structure further comprises a plurality of legs. Each leg has an upper leg portion. The upper leg portion of each leg is received by the inner wall opening of a corresponding receiver sleeve. Additionally, each upper leg portion includes a detent. The detent is adapted to engage a corresponding inner wall slot when the upper leg portion is received by the inner wall opening of the corresponding receiver sleeve. Thus, the detent both secures the leg to the book box and positions the upper leg portion within the opening.

Abstract: A holding device for holding a structural component for aircraft to a further structural component; may be coupled to one of the components and is moved from a holding mode, where the first component is held to the second component by the holding device, to a release mode using a magnetic force. Furthermore, a method for deinstalling two components is disclosed, where carrying out deinstallation merely requires pressing a first component against a second component, and placing a magnetic key on or over one of the components in the region of the holding device, where at least some method-related steps may take place at substantially the same time.

Abstract: An apparatus for locking an inner telescoping member into a desired position within an outer telescoping member or sleeve. A locking mechanism is carried by the inner telescoping member and includes locking pins supported for motion between respective retracted positions and respective extended positions engaging detents in the outer telescoping member. A synchronizing ring is operatively connected to the locking pins such that synchronizing ring rotation moves the locking pins between the locking pins' respective retracted and extended positions.

Abstract: On a device with at least two parts (1, 2) moving relative to each other, where a sliding bearing (3) is located on at least one first part (1), comprising a sliding element (6) on which a first sliding surface (4) and a first contact surface (7) inclined relative to it are provided, and an adjusting element (8) having a second contact surface (9) that lies on the first contact surface (7) in a manner permitting displacement and, in this context, is supported on the first part (1) by a third contact surface (10), facing away from the second contact surface (9), it is envisaged, for the purpose of using the sliding guide in a very small gap between the parts (1, 2) moving relative to each other, and for inexpensive manufacture and simple assembly, that the first part (1) displays a recess (11), located outside the area in which the adjusting element (8) is supported on the first part by the third contact surface (10), in which a projection (12) located on the sliding element (6) is mounted in positive fashion

Abstract: The invention provides a locking device for locking together first and second elements that are movable relative to each other in an axial direction, the device comprising firstly a bushing secured to first element and including catches that are cantilevered-out in an axial direction and that are elastically deformable, and secondly an anchor portion secured to the second element and including an annular setback to receive hook-shaped ends of the catches, the device also including a locking sleeve mounted to move relative to the catches between a release position in which the catches are free to flex, and a blocking position in which the catches are prevented from flexing, wherein the locking sleeve is movable in rotation relative to the catches and includes a circumferential succession of gaps and of obstacles, such that: when the sleeve is in a first angular position corresponding to the release position, the gaps are in register with the catches which are therefore free to flex under the effect of the a

Abstract: A lineman's pole having telescoping sections is connected by a push button assembly for temporarily fixing the length of the pole by holding sections together. The push button assembly is accessible from an end of the pole and can be installed, removed, and positioned via a connector accessible from one open end of the pole. A tool engages the connector on the push button, allowing for pulling, pushing, and rotating the button into a desired position. One connector includes a threading. A threaded tool engages the threads, allowing the user to pull the push button out of the telescoping pole. The connector, such as the threads within a bore in an adapter holding the push button, allows for removing the push button assembly. The push button assembly connects and releases cylindrical sections of the telescoping lineman's pole via openings in the surface of the telescoping sections.

Abstract: A disconnectable link may include a first link member having a generally tubular portion, a first ball joint disposed on the first link member and adapted to engage a first suspension member; a second link member slidably receivable within the first link member; a second ball joint disposed on the second link member and adapted to engage a second suspension member; a lock shaft engaged with the second link member; and a lock element disposed within an aperture in the second link member. Movement of the lock shaft into a first position may cause the lock element to engage the first link member to prevent relative axial movement between the first and second link members, and movement of the lock shaft into a second position may cause the lock element to disengage the first link member to allow relative axial movement between the first and second link members.

Abstract: An appliance or domestic apparatus such as a surface cleaning apparatus comprises a first part and a second part. The second part comprises an insertion portion slidably insertable into the first part to define an inserted position. The insertion portion comprises a longitudinal axis and a first detent member. A movable lock is slidably mounted on at least one of the first part and the second part, and is slidable at an angle to a longitudinal axis of the insertion portion. The movable lock has a second detent member. When the insertion portion is in the inserted position, the first detent member positioned inwardly of the second detent member, and the second detent member is selectively positionable to interact with the first detent member to lock the first part to the second part.

Abstract: A telescopic flagpole for reducing the manual force required to extend and secure multiple segments. The flagpole includes a plurality of segments including a bottom segment, at least one intermediate segment, and a top segment; a plurality of sleeve assemblies each positioned between an associated pairing of a relatively lower segment and a relatively higher segment; and a plurality of biasing members each urging an associate one of the segments toward an extended position.

Abstract: A wheeled distance measuring device includes a wheel with a measuring unit connected to a side of the wheel and a pole unit is connected to the wheel, the pole unit includes a first section, a second section and a third section. The first section has two first holes and two second holes defined in two ends thereof. The first section is movably inserted into the second section which has two third holes and movably inserted into the third section which has two fourth holes. Two positioning units are respectively located between the first and second section, and between the second and third sections. The positioning units control the retractable movement of the sections so as to adjust the length of the pole unit. A handle is connected to the pole unit and controls the positioning units by an action rod.

Abstract: A hand-held ground-supported display device for warning passersby is disclosed. Included is a self-supporting sign panel and a plurality of at least three mast sections telescopically interfittable, one within the other. A coupler is attached to the sign panel, with a socket for releasably engaging the top mast section. The mast sections have progressively smaller internal diameters and progressively shorter lengths, with the outermost mast section having the largest internal diameter and the longest length. Middle mast upper and middle mast lower stop members are attached to upper and lower ends of the middle mast section, respectively. In one example, the middle mast upper stop member has an end wall with first and second sidewalls extending downwardly therefrom with lower free ends for interfering with stop members associated with the top and the bottom mast sections. A kit including the display device is also disclosed.

Abstract: The present invention provides a suction tube for a vacuum cleaner, which comprises an outer pipe (8), an inner pipe (1) received in the outer pipe, and a locking device (20) disposed between the inner pipe (1) and the outer pipe (8). A guiding bush (2) is provided at the inner wall of the outer pipe (8). The inner pipe (1) is provided with a row of detent holes (9) which are arranged in the axial direction of the inner pipe (1). An inner liner tube (12) is fixed onto the inner wall of the inner pipe (1). Thus, the manufacturing of the detent recesses becomes easier since the detent holes are made through the inner wall of the inner pipe, and the air leakage of the inner pipe due to the detent holes can be prevented by the inner liner tube (12) provided at the inner pipe (1).

Abstract: A quick connect/disconnect coupling apparatus is provided in which a base member is engaged by a locking housing through a series of interengagement pins. The pins maintain the shaft in a locked position. Upon exposure to an appropriately positioned magnetic field, pins are removed a sufficient distance such that the shaft may be withdrawn from the locking housing. The ability to lock and unlock the connector assembly requires no additional tools or parts apart from a magnetic key.

Abstract: An extensible electrical connecting device comprises an extensible supporting bar device and an extensible electric cable. The extensible electrical connecting device further comprises a first electrical connecting base which is connected to one end of the extensible supporting bar device and connected to one end of the extensible electric cable and a second electrical connecting base which is connected to another end of the extensible supporting bar device and connected to one end of the extensible electric cable. Therefore the extensible electric cable is capable to extend its length along with the extending motion of the extensible supporting bar device so as to provide an electrical connection between the first electrical connecting base and the second electrical connecting base.

Abstract: An adjustable-height bicycle seat post assembly comprises a hollow seat post for supporting a bicycle seat slidably on plastic guides or shims inside a hollow tube. The hollow tube clamps into the frame of a bicycle. A mainspring forces the post upward, but a locking mechanism interconnects the post with the tube in various fixed positions relative to the tube. The locking mechanism includes a housing, which supports a plunger for reciprocating movement into and out of engagement with holes on the post. The locking mechanism is affixed to the outside of the tube to bear shearing forces on the plunger. An endcap on the locking mechanism and a topcap on the tube protect the assembly from foreign debris. The locking mechanism may be manipulated remotely using a magnetic switch assembly or manually using a mechanical assembly.

Abstract: A connecting member for releasably connecting a first part to a second part is provided. The connecting member includes a housing and a first locking member. The housing has a first opening and a second opening. The first locking member has a first tab and a first button. The first locking member is in the housing such that the first locking member biases the first tab through the first opening and the first button through the second opening. The first tab is releasably connectable to the first part over the housing when the first tab is biased through the first opening. Further, the first button remains uncovered by the first part when the first part is releasably connected to the first tab.

Abstract: The invention is a cleaning device comprising of a shaft. The shaft has a hollow section and a lower end with a rim. The rim defines an opening at the bottom end of the shaft. The opening is located about the longitudinal axis and is in communication with the hollow section. The shaft also has one or more apertures that extend through the side of the shaft and are in communication with said hollow section. The shaft also has one or more slits that maybe in communication with the one or more apertures. The slit(s) run parallel to the longitudinal axis and may terminate before reaching the rim. The cleaning device is designed in such a way to easily allow a user to employ any flexible fabric or other suitable material in the cleaning device.

Abstract: An adjustable lift support apparatus includes a base, a sleeve attached onto the base, at least one meshing device, a shaft, and a support attached at the shaft. At least one groove is formed on an inner surface of the sleeve along a first axial direction. Each meshing device corresponds to one of the at least one groove and includes a flexible protrusion. The shaft is inserted into the sleeve. At least one rack is provided on an outer surface of the shaft along a second axial direction, such that the flexible protrusion of the meshing device is meshed between two neighboring teeth of the at least one rack. The support is lifted or lowered by an external force to make each of the at least one rack move with respect to the flexible protrusion of the corresponding meshing device, so as to adjust the height of the support.

Abstract: A telescopic flagpole for reducing the manual force required to extend and secure multiple segments. The flagpole includes a plurality of segments including a bottom segment, at least one intermediate segment, and a top segment; a plurality of sleeve assemblies each positioned between an associated pairing of a relatively lower segment and a relatively higher segment; and a plurality of biasing members each urging an associate one of the segments toward an extended position.

Abstract: A telescopically adjustable pipe includes an outer tube, an inner tube, an inner bushing, a sleeve, a push member, a mounting bracket, a positioning member, and a retaining member. Thus, the positioning member is moved by movement of the push member and is detachably locked in the respective positioning hole of the inner tube to lock the inner tube in the outer tube, so that the inner tube is locked in and cannot slip from the outer tube.

Abstract: A positioning structure of a beach umbrella is provided that includes a positioning apparatus to connect with a lower tube of the umbrella. The apparatus has a flat plate for forcing the lower tube being inserted into ground easily. A handle has a rod to engage with apertures on the tubes of the shaft that can adjust the height of the beach umbrella as desired for increasing utility.

Abstract: A telescoping handle having a plurality of telescoping hollow tubes characterized by relative sliding stiffness between each of the tubes and having a similar resistance to rotation, the handle comprising a plurality of stiffeners having an outside diameter sized to fit snugly within an inside diameter of an associated tube. Each stiffener is positioned in an end of the associated tube remaining within an adjacent larger diameter tube when in an extended state. Each stiffener has an axial length at least as long as an overlap length of the associated tube and the adjacent larger diameter tube when in the extended state.

Abstract: A locating device for a retractable strut of a tent or a closet includes an engaging device, a sliding bracket, an upper strut and a lower strut. The sliding bracket is secured onto the lower strut. The upper strut is inserted into the lower strut and has an elastic buckle therein. The sliding bracket comprises a through hole for insertion of the elastic buckle. The engaging device has a pair of extension plates at respective sides and a stud at the inner center wall. The sliding bracket comprises a pair of slots at respective sides for insertion of the extension plates of the engaging device. By pressing the engaging device, the elastic buckle is urged to retract from the through hole of the sliding bracket.

Abstract: An adjustable height bicycle seat post assembly comprises a hollow seat post for supporting a bicycle seat slidably supported on plastic shims inside a hollow tube. The hollow tube clamps into the frame of a bicycle. A main spring forces the post upward, but a locking mechanism interconnects the post with the tube in various fixed positions relative to the tube. The locking mechanism includes a foundation and a projection extending from the foundation having a counterbore for guiding a plunger into holes on the post. The locking mechanism adheres to the outside of the tube to bear shearing forces on the plunger. An endcap on the locking mechanism and a top cap on the tube protect the assembly from foreign debris. The locking mechanism may be manipulated remotely using a magnetic switch assembly or manually using a manual assembly.

Abstract: A power tool coupling system for coupling two boom members of a split-boom power tool. The coupling system includes a first section and a second section. The first section is adapted to be fixedly attached to an end of a first one of the boom members. The first section includes an aperture for receiving a locating member on a second one of the boom members. The second section is movably connected to the first section. The second section is adapted to depress the locating member, while the locating member is located in the aperture of the first section, when the second section is moved from a first to a second position.