Abstract: A booster seat has a seat member (14) and armrests (12a, 13a), and the distance between the armrests (12a, 13a) can be automatically changed according to the height of the support portion (14a) of the seat member (14). The armrests (12a, 13a) are formed on side members (12, 13) extended on the opposite sides of the support portion (14a) of the seat member 14 on a base (11) mounted on a seat of a vehicle. Tapered, wedge-shaped blocks (17, 18) are arranged on the inner side surfaces of the side members (12, 13) so as to extend toward a middle portion of the support portion (14a).

Abstract: Although conventional chairs with armrests have arm mounts which are rotatably movable from their original position to in front of the person in the chair, they tend to make unnecessary motions such that part of the arm mount protrudes so far outward during its rotation so that the person must move the chair back or assume an uncomfortable position to prevent the arm mount from interfering with the desktop, him or herself. In addition, a supporting structure of the arm mounts is weak and unstable. The present invention provides a chair with armrests which includes arm supports being attached to the sides of a chair body, arm mounts supported by the arm supports and a controlling means which controls at least the arm mounts so that they can move around the person in the chair in a substantially regular path between a first use position on a side of the person and a second use position in front of the person.

Abstract: An adjustable armrest assembly for a chair provides adjustment in both the vertical and horizontal position of an armrest member. A tubular member is adapted for telescopic mounting to an upwardly extending support member mounted to the chair. The support member includes a series of spaced teeth defining indentations therebetween. The armrest assembly includes a pivotable latch member which is secured to the tubular member utilizing a cap member mounted to the upper end of a passage defined by the tubular member. The cap member and the tubular member define cooperating mounting structure for providing pivoting movement of the latch member. The latch member is movable between an engaged position, in which the latch member is engaged with an indentation between the teeth defined by the support member, and a disengaged position in which the latch member is moved out of engagement with the teeth.

Abstract: The present invention proposes an elbow rest device for use in the field of dentistry. The elbow rest device is connectable to an object. The device has a pad for supporting a user's elbow, an elongated member having an upper portion and a lower portion, the upper portion being coupled to the pad. The device further has a pivot mechanism for allowing the elongated member to be movable in a plane defined by a cone-like motion. The pivot mechanism is coupled to the lower portion of the elongated member. Finally, the device has a connecting assembly for connecting the elongated member to the object.

Abstract: A device for adjusting lateral position of a chair armrest relative to a chair seat comprises a base securely attached to the chair seat and having a number of positioning holes, an extension extended from an armrest of the chair and slidably received in the base along a lateral direction relative to the seat, and a positioning member including an intermediate portion pivotally attached to the extension, a first operative end, and a second end releasably engaged with at least one of the positioning holes. A mounting member is mounted to the underside of the positioning member and has a stub extended through a through-hole in the intermediate portion of the positioning member. A bolt is extended through the stub and engaged with the extension, thereby pivotally mounting the positioning member between the extension and the mounting member.

Abstract: An armrest assembly for a chair which can be adjusted in multiple aspects with the use of single actuating mechanism. The adjustment aspects of the preferred embodiment include a vertical adjustment with respect to the chair and a horizontal rotational adjustment. Such an armrest assembly can include an armrest base securable to a chair and having a tubular portion, a hollow armrest support slideably and rotationally disposed about the tubular portion and an armpad attached to the top of the hollow armrest support. A handle to disengage the actuating mechanism is provided.

Abstract: A component has a support with a stiff section and a flexible section. An incompressible resilient material, such as a gel, is supported on the flexible section. In one form, the component forms an armrest, with the support including upper and lower sections forming a loop. The upper section bridges between ends of the lower section and includes the flexible section, and a section of gel material is positioned on or molded onto the flexible section. In the armrest, the incompressible resilient material is sufficiently thick and resilient to comfortably support a person's forearm on the support yet further is sufficiently flowable and stretchable to at least partially move off a rib on the support and into the non-supporting areas when pressure is applied to the incompressible resilient material.

Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.

Abstract: An adjustable arm chair bracket which will attach a chair arm rest to a chair. The arm rest can then be adjusted to suit individuals of different sizes. The bracket has three arms, one of which is connected to the chair, the second has the arm rest attached thereto, and the third arm connects the first and second arm. Spring biased ball detents are used to lock the bracket in various positions to adjust the bracket to the convenience of different users.

Abstract: An extendible chair arm comprises a rail member supported by an arm stump, a sliding member disposed in rail member being moveable within a length of trough of rail member, a first pivot plate with inner end pivotably secured to sliding member by a bearing, and a second pivot plate pivotably secured to the outer end of first pivot plate. With this, arm pad supported by second pivot plate can move and pivot with respect to the chair as sliding member moves in cooperation with the rotation of first pivot plate relative to sliding member and second pivot plate for providing a support for elbow when doing office work on table. Thus prevents arm fatigue.

Abstract: A steering apparatus with excellent operability, which is especially excellent in minute steering operability, is provided. For this purpose, the apparatus includes a steering operation shaft (6) rotating almost horizontally, and a lever (3) which is coupled to the steering operation shaft (6), separated by a predetermined horizontal distance from the steering operation shaft (6), and which turns almost horizontally to rotate the steering operation shaft (6).

Abstract: An ergonomic arm support for supporting the forearm during typing, keying, or assembly operations. The arm support includes an armrest pivotally mounted on a shroud for sliding the armrest to and away from a cantilever disk which is secured to a table or chair. The shroud is pivotally slidable or repositionable relative to the cantilever disk such that the armrest, which is pivotal relative to the shroud may be positioned to provide a wide range of locations for positioning of an individual's forearms. The cantilever disk permits easy or convenient inward, outward, forward, or backward positioning of an armrest relative to an object where the cantilever disk frictionally engages the shroud to lock the armrest into a desired position during use. The shroud may also function as an enclosure of the cantilever disk to prevent inadvertent engagement between an individual and/or the individual's clothes and the cantilever disk.

Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.

Abstract: An armrest construction for chairs includes an armrest support having a lower end constructed for attachment to a chair, an upper end, and a mounting block attached to the upper end. A pivot block is pivoted to the mounting block at a main pivot, the pivot block having an upwardly-extending follower. First and second gears are each pivoted to the pivot block, the gears having intermeshing teeth at an inner end such that rotation of the first gear causes the second gear to simultaneously rotate in an opposite direction, the first and second gears further having outer ends. A support plate having pivot/slide members engages the outer ends of the first and second gears, and further has a guide operably engaging the follower to guide lateral movement of the support plate along a predetermined path.