JPH0443392Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a movable armrest for an automobile that is positioned along a door trim surface and whose vertical position can be adjusted.

[Problems that conventional technology and ideas try to solve]

As this type of armrest, it is well known to use a cross arm whose intersections are slidably pivoted to the door trim. (Jitsukai 57-171935). One end of the operating lever is pivotally attached to one end of the cross arm, a plurality of recesses for positioning are provided at the other end, and a pin that engages with the recesses is provided protruding from the other end of the cross arm. However, in this case, when making adjustments, it is necessary to lift the main body and make adjustments step by step using the operating lever, making continuous adjustment with one hand impossible. Furthermore, the fixed part and the movable part are divided into two parts, and the adjustable part is visible from the outside, which is unfavorable in terms of appearance.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a movable armrest for a motor vehicle of the type mentioned at the outset, which can be adjusted steplessly in a dial manner and has an undivided appearance when viewed from the outside.

[Means and actions for solving problems]

In order to achieve this objective, the present invention has two vertical surfaces 13 provided in the armrest main body 9 and offset from each other in the vehicle width direction in the longitudinal direction of the vehicle body.
a, 13b, two arms 15 that form parallel links at the top and bottom along the longitudinal direction of the vehicle body,
One end of 15a, 16, 16a is hinged, and the other end is hinged to the door panel 1, and a parallel link is provided inside the armrest body 9 and on one side of the door panel 1 behind the armrest body. A rack 7 having teeth in a curved shape corresponding to a rotation path in both directions up and down from a position along the longitudinal direction of the vehicle body is fixedly provided, and a pinion 21 that meshes with this rack 7 and is rotationally driven. is fixedly installed, and the meshing position of the pinion 21 with the rack 7 is set at approximately the middle position of the rack 7 where the parallel link is along the longitudinal direction of the vehicle body.

When the pinion 21 is driven to rotate automatically or manually, the engagement position with the rack 7 moves up and down relatively, and the parallel link follows and rotates up and down from the position along the longitudinal direction of the vehicle body, and the armrest main body 9
moves up and down.

Note that the symbols in parentheses refer to those in the embodiment described later.

[Example of idea]

1 to 4 show an armrest for a door trim according to an embodiment of the present invention.

In FIG. 1, reference numerals 2 and 3 indicate brackets fixed to two locations of the door panel 1 in the longitudinal direction of the vehicle body inside the door trim 1a. These brackets are provided with vertical surfaces 13a, 1 that are offset from each other in the vehicle width direction of the armrest main body 9, which is a movable part.
Arms 15, 15a, 16, which constitute parallel links, respectively,
16a.

One end of the arms 15, 15a is hinged to the upper and lower ends of the bracket 2 of one door panel with a pin 15b, and the other end is similarly hinged to one vertical surface 13a of the plate 13 with a pin 15b. One end of the arms 16, 16a is hinged to the upper and lower ends of the bracket 3 with a pin 16b, and the other end is hinged to the other vertical surface 13b. The shape of each arm is slightly curved in the vertical direction away from each other, and is also slightly bent in the vehicle width direction to enable smooth rotation, but when installed, they are almost parallel to each other. There is.

The bracket 2 is provided with a curved rack 7 in the vertical direction inside the parallel links 15, 15a. Then, on this easy, vertical plane 13
Tongue piece 13d bent toward the outside of the vehicle interior by cutting out part a
The armrest main body 9 is driven in the vertical direction by meshing with the pinion 21 supported by the armrest main body 9 . Further, pins 2a, 3a are screwed into the central portions of the brackets 2, 3, and long grooves 17, 18 are formed in which the pins 2a, 3a are engaged along the movement paths of both vertical surfaces 13a, 13b with respect to these positions.
is formed.

The pinion 21 includes a recess 22a into which the protrusion 21a on the front surface fits loosely, and an outer shaft portion 2 that passes through the pinion 21 without friction and is pivotally supported by the tongue piece 13d.
A shaft 22 is provided with an inner shaft portion 22c to which a handle 2b and a handle 26 are attached and locked with a pin 25, and the inner shaft portion is passed through without friction and screwed to the surface of the vertical surface 13a at three locations. A reversal prevention mechanism is attached to the stopper case 24 and a spring 23 that is set between the inner surface of the stopper case and the circumferential surface of the inner shaft portion 22c to bias the inner shaft portion in the rotational direction. Such a rotary drive mechanism with a reverse rotation prevention function is well known and is used in wind regulators and the like.

The spring 28 is attached to the plate 13 so as to eliminate play.
It is loaded between the claw 13e at the center of the bracket 3 and the bracket 3.

Figure 2 shows brackets 2, 3 and plate 13.
It shows the connection state by parallel links 15, 15a, 16, 16a between them. (Rotary drive mechanism parts 22-24 are not shown). The plate 13 assembled in this way is spot welded to the base body 10 to which the side plates 10c are welded on both sides at the x mark position with the inner shaft portion 22c protruding from the perforation 10b. Then, insert the pad 11 into its perforation 1.
The inner shaft part 22c is made to protrude from the perforation 12b and is mounted, and the inner shaft part 22c is made to protrude from the perforation 12b and is covered with the cover 12.
6 is attached to the end of the inner shaft portion 22c and locked with the pin 25.

With the brackets 2 and 3 assembled to the armrest main body 9 in this manner, since both brackets are connected by the rod 14, their mutual relationship will not shift before assembly. Then, using a tool, pass through the cut 12a of the cover 12, the cut 11a of the pad 11, and the perforation 10a of the base 10, and screw it to the door panel 1 at the screw holes 2b, 3b (Fig. 4) of both brackets 2, 3, as shown in Fig. 3. As shown in the figure, position it on the door trim surface 1a.

The operation of the armrest configured in this way is as follows.

When the parallel links 15, 15a, 16, 16a are in the horizontal position along the longitudinal direction of the vehicle body and the handle 26 is rotated with one hand in the right direction, the pinion 21 is moved to the rack 7. The parallel links 15, 15a,
16, 16a are moved toward the solid line position in FIG. Then, pins 2 are attached to the ends of the long grooves 17 and 18.
When a and 3a come into contact with each other, rotation is restricted, and the armrest main body 9 comes to the lower limit position shown by the solid line in FIG. When rotated in the opposite direction, the parallel links 15, 15a,
16 and 16a are moved, and their rotation is restricted at the ends opposite to the long grooves 17 and 18, and they move to the upper limit position shown by the two-dot chain line in FIG.

At this time, the pins 2a and 3a are engaged in the long grooves 17 and 18, and the heads of the pins slide along the peripheral surfaces of the long grooves 17 and 18, so that the links 15 and 15
The rigidity of a, 16, 16a is improved. Furthermore, since these link surfaces are offset, the rigidity is improved and the armrest main body 9 is prevented from wobbling when the arm is placed on it. Further, the tensile force of the spring 28 prevents the armrest main body 9 from wobbling, and the above-mentioned reverse rotation prevention mechanism prevents the armrest main body 9 from falling even when weight is applied to the arm.

In the above-described embodiment, when the rack 7 is automatically moved up and down by a switch operation instead of a manual handle operation, the rack 7 is driven by a motor with a brake and a deceleration pinion. In this case, it is conceivable to attach the rack to the armrest body side and the pinion to the door panel side. Long groove 1
It is also conceivable that 7 and 18 be formed on the brackets 2 and 3, and that the engagement pin be provided on the plate 13.

[Effect of idea]

As described above, according to the present invention, the movable armrest is supported by parallel links that rotate up and down from a horizontal position in the armrest main body at the front and back of the armrest, and is easily driven, thereby achieving a compact, lightweight, and space-saving design. The parallel links and racks can be hidden within the armrest body, improving the appearance. Since the upper and lower parallel links rotate both upward and downward from the horizontal position, it is possible to move up and down in a nearly straight line using a rotary drive system. The armrest is supported by upper and lower parallel links at two locations, front and rear, and these two parallel links are offset from each other in the vehicle width direction at the front and rear to provide sufficient rigidity and allow for movement. This ensures that the armrest does not wobble at the height adjustment position.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a movable armrest for an automobile according to an embodiment of the present invention, Fig. 2 is a diagram showing the main parts of the embodiment assembled, and Fig. 3 shows the armrest of the embodiment attached to a door panel. The state diagram and FIG. 4 are diagrams for explaining the movement of the parallel links in the same embodiment. 1a...Door trim, 2,3...Bracket,
2a, 3a... Pin, 7... Rack, 9... Armrest body, 13... Plate, 15, 15
a, 16, 16a...arm, 17, 18...long groove, 21...pinion.

Claims (1)

[Scope of Claim for Utility Model Registration] Parallel links are formed at the top and bottom along the longitudinal direction of the vehicle on each of two vertical planes in the longitudinal direction of the vehicle that are provided within the armrest body and offset from each other in the vehicle width direction. One side end of each of the two arms is hinged, and the other side end is hinged to a door panel, and the vehicle body of the parallel link is attached to one of the door panels within the armrest main body and behind the armrest main body. A rack with teeth in a curved shape corresponding to a rotation path in both directions up and down from a position along the front-rear direction is fixed, and a pinion that meshes with this rack and is rotationally driven is fixed on the other side. . A movable armrest for a motor vehicle, wherein the pinion engages with the rack at a substantially intermediate position between the parallel link and the rack along the longitudinal direction of the vehicle body.