JPS61170410A - Armrest apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an armrest device for a vehicle seat.

[Conventional technology]

For example, various rear seats of passenger cars are equipped with an armrest device in the center of the seat back to comfortably support the arms of the occupant and provide a comfortable sitting posture.

This armrest device is constructed by pivoting the armrest body into a storage recess formed in the seat back so that it can rise and fall.When not in use, it is stored in the storage recess in an upright position, and when in use, it is pulled out from the storage recess and placed on the seat cushion. It is designed to support the arms by lying down.

[Problem that the invention seeks to solve]

However, in conventional armrest devices, the storage recess is formed to correspond to the size of the armrest main body, so when the armrest main body is pulled out, the opening of the storage recess is wide (thus, when the armrest is used, it is difficult to sit on the armrest). The user's arm often gets stuck in the storage recess, making it difficult to use the armrest comfortably.

The present invention has been made in view of these points, and an object of the present invention is to improve the above-mentioned drawbacks by forming the opening of the storage portion of the armrest main body small.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention includes an armrest main body (5) that includes a base body (6) and a sliding body (7) that is attached so as to be slidable in the front-rear direction along the upper surface of this base body (6). The base body (6) is rotatably attached at the rear part to a shaft (9) suspended horizontally at the lower part of the storage recess (4) formed in the seat back (3) to form the storage recess (4)k.
As an interlocking member, the sliding body (7) is slidable as the base body (6) is raised and rotated, and the sliding body (7) is interlocked with the base body (6). , for example, fix the K fixed gear tiz to the shaft (9), and fix this fixed gear α2.
A movable gear αJ is pivotally supported on both side surfaces of the base body (6) so as to mesh with the movable gear αJ.
Either by attaching a rack cL51 that meshes with the wheel αe, or by fixing the wheel αe to the round shaft (9),
A sliding body (71K bonded) in which a wire αη with one end fixed to the lower part of the wire αη is wound around the front surface and the other end is overlapped on the upper surface of the base body (6).
6) Spring QI so that it always slides forward against
It is constructed by being biased by I.

[Effect]

The measures described above operate as follows.

When the armrest body (5) is laid down, the sliding body (
7) becomes slidable relative to the base body (6) and is slid and protruded forward by the interlocking member, so that the armrest body (5)
) is formed with a long overall length.

When the armrest main body (5) is rotated in the standing direction from this state, if the interlocking member is composed of a gear or a near gear, the movable gear αJ meshing with the fixed gear α2 is rotated, and this movable gear (13 and If the sliding body (7) is slid backward with respect to the base (6) through the engaged rack (is), and if the interlocking member is constituted by a wire or a spring, the armrest body (5) will not stand up. Due to the rotation, the wire αη is wound around the front peripheral surface of the wheel (161), so the sliding body (7) is slid backward against the biasing force of the spring circle, and the base ( 6), and thereby the armrest body (5)
The storage recess (4) K is in a state where its length is shortened.
It will be stored.

Since the armrest main body (5) is thus made compact when stored, the opening of the storage recess (4) can be formed small.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 3 show a first embodiment of the present invention, in which (1) shows a rear seat of a vehicle seat, (2) a seat cushion, and (3) a seat back. A storage recess (4) is formed in the center of the bag (3), and an armrest main body (5) is pivotally supported in the storage recess (4) so as to be rotatable up and down.

That is, this armrest main body (5) has a box-like base body (6
), a plate-shaped sliding body (7) and k that are slidably attached to the top surface of this base (6) in the front and back direction,
Storage recesses (4) are located in the shaft holes (8a) (8b) drilled in the rear of both side surfaces (6a) (6b) of the base body (6).
A shaft (9) K is fixedly suspended horizontally between the lower portions of both side surfaces of the shaft (9) and is rotatably supported.

Further, the sliding body (7) is extended so that both ends of its back surface part hold the upper parts of both side parts (6a) and (6b) of the base body (6), and the sliding body (7) is formed to protrude inside the both side holding parts. The convex portions (10a) (10b) are located on both side surfaces (6a) of the base (6).
) (6b) has a groove (ll) formed in the longitudinal direction in the upper part.
a) (llb), and this convex portion (10a
) (10b) is guided into the grooves (lla) and (llb), thereby causing the sliding body (7) to slide in the front-rear direction along the upper surface of the base body (6).

A fixed gear α2 is welded approximately at the center of the shaft (9) on which the armrest body (5) is supported between both side surfaces (6a) and (6b) of the base body (6), and meshes with this fixed gear az. The movable gear 0 is connected to the base body (6
), and a rack a9 that meshes with the movable gear α3 is attached to the rear center of the back surface of the sliding body (7) in the front-rear direction.

In the armrest device of this example configured in this way, when the armrest main body (5) is used, it is pulled out from the storage recess (4) and laid down on the seat cushion (2),
The sliding body (7) is in a state of protruding forward with respect to the base body (6) and has a long overall length (see FIG. 1). That is, due to the rotation of the base (6), the movable gear a3 is moved forward while meshing with the fixed gear σ2, so it rotates, and the rotation of the movable gear a3 causes the rack (Is to be sent forward). The sliding body (7) is slidably protruded forward in conjunction with the rotation of the base body (6), and the armrest body (5)
The total length becomes longer and the shape becomes usable.

When this armrest main body (5) is rotated in the upright direction to store it from a usable state, the movable gear a3 meshed with the fixed gear aZFc moves along the periphery of the fixed gear (121) as described above. The sliding body (7) is rotated while moving in the opposite direction, that is, upward, and the rotational force of the movable gear αJ is transmitted to the rack α9VC, so that the sliding body (7) slides rearward. The storage recess (4) is placed in a state where the moving object (7) overlaps the base body (6).
(See Figure 2). That is, the sliding body (7) slides with a stroke corresponding to the distance a by which the movable gear α3 is rotated around the periphery of the fixed gear α2, and thereby the armrest body (5) has its collapsed length R1. in some cases#! Therefore, the storage recess (4) is formed in a size corresponding to the shortened length R2 of the armrest main body (5).

Also, Figures 4 to 6 [i! U indicates a second embodiment of the present invention, and the description of the same parts as in the embodiment of the running section 1 described above will be omitted.
The wheel (1
61 is welded, and a wire αD is wound around the front circumferential surface of a groove (16a) formed on the peripheral surface of this wheel αe, and one end of the wire αD is placed at a predetermined position of the groove (16a), that is, from the lower part of the curved surface to the rear part. fixed, and the other end connects the sliding body (7) to the base (
6) is connected to a protruding piece α81 provided protrudingly on the back surface of the sliding body (7) in an overlapping state. Also, the base (
6) - A coil spring (21) is suspended between the protrusion 9 protruding from the front of the inner surface of the side surface (6a) and the protrusion ■ protruding from the rear of the back surface of the sliding body (7). As a result, the sliding body (7) is always biased forward with respect to the base body (6) K.

When the armrest main body (5) is laid down, the wire αη is unwound around the wheel (I6i), and therefore the armrest main body (5) is moved from the sliding body (
7) is projected forward by the biasing force of the coil spring CD, thereby increasing its overall length and being maintained in a used state (see FIG. 4).

When the armrest main body (5) is raised and rotated from this state to be stored, the wire αn is wound around the groove (16g) on the front side of the wheel (161), and the wire αn corresponds to the length b of this wrapping. The sliding body (7) is then retracted against the biasing force of the coil spring Qυ, so that the armrest main body (5) is stored in the storage recess (4) K with its overall length shortened (see Figure 5). ).

According to the armrest devices of the first and second embodiments □ detailed above, the armrest main body (5) is shortened in length when stored, so the opening of the storage recess (4) can be formed small. Therefore, there is no problem that the arm part of the seated person gets into the storage recess (4) when using the armrest, and the usability of the armrest when sitting is improved, and the appearance of the seat as a whole is also improved.

In addition, in the above first and second embodiments, the fixed gear a
By arbitrarily setting the diameter of z and wheel αe,
It is also possible to change the length of the armrest main body (5) when the armrest body (5) is folded down by changing the amount of the sliding body (back and forth movement of the force) relative to the base body (6) K.

Furthermore, the first and second embodiments described above are cases in which the present invention is applied to an armrest in the rear seat of a passenger car, that is, an armrest provided in the center of the seat back of a pincer-type seat. Of course, it can be applied to the armrest provided at the side end of -
The seat rest can also be applied to a seat and an armrest provided on the side of the seat that does not have a storage recess.

〔Effect of the invention〕

As described above (according to the present invention 1 [C), when the armrest main body is not in use, its length is shortened and it is stored in the storage recess in a compact state, so the opening of the storage recess can be formed small. Therefore, there is no problem that the seated person's arm or the like gets stuck in the storage recess, and the usability of the armrest is further improved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing the first embodiment of the device of the present invention, in which the armrest is in use, FIG. 4 is a partially cutaway side view showing the second embodiment of the device of the present invention, showing the state when the armrest is used; FIG. 5 shows the same; FIG. 6 shows the state when the armrest is stored; is B in Figure 5.
-B' line sectional view. In the figure, (3) is the seat back, (4) is the storage recess, and (5) is the seat back.
) is the armrest body, (6) is the base, (7) is the sliding body, α2 is the fixed gear, α1 is the movable gear, (19 is the rack,
αe is a wheel, αη is a wire, and 12D is a coil spring.

Claims (1)

[Claims] The armrest main body is composed of a base body that is rotatably supported in a storage recess formed in the seat back, and a sliding body that is attached to the upper surface of the base body so as to be slidable in the front and back direction, and An armrest device characterized in that an interlocking member is provided between the sliding member and the sliding member to move the sliding member rearward with respect to the base at least as the base rotates in the upright direction.