JP3393824B2 - Armrest structure of seat - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat armrest provided with a seatbelt buckle on a side portion of a seat cushion, for example, an industrial vehicle seat armrest, and more particularly to a seated person's grip. The present invention relates to an armrest structure that also serves as a grip.

[0002]

2. Description of the Related Art For example, a seat belt provided on a seat of an industrial vehicle such as a forklift is usually a so-called two-point structure which is erected and connected between right and left sides of a seat cushion near the base of a thigh of a seated person. In most cases, the webbing wound on an automatic winder called a retractor is pulled out from one side of the seat cushion to the other side, and the tongue at the tip of this webbing is inserted into the buckle on the other side. It is designed to be worn and connected.

Further, in this type of seat, it is also important to secure workability in addition to safety, and when a seated person is getting on and off, when the seated person turns back and forth, or when the upper body is tilted greatly to the left and right. A so-called grip that can be gripped by a seated person at the time of being placed is arranged and fixed on a side portion of the seat cushion or the like. Many of these grips are also used as armrests that support the seated person's arm, so normally, the lower end is connected and fixed to the side of the seat cushion,
It is provided so as to extend upward.

As described above, in a seat for an industrial vehicle such as a forklift, an armrest that also serves as a grip and a buckle to which webbing is connected are provided side by side on the seat cushion. It is common to have them installed in the seat cushion at the inner position or juxtaposed in front of the armrest.

[0005]

However, in the former configuration in which the buckle is embedded in the side portion of the seat cushion, the effective width of the seat cushion is narrowed by the embedding of the buckle, so that the presence of the embedded buckle is There is a possibility that this may impair the cushioning property of the seat cushion, that is, the comfort of the seated person. In addition, in this configuration, the webbing and the armrest positionally overlap each other in the left-right direction of the seat cushion, so that the gripability of the armrest with respect to the grip portion is likely to decrease, and the armrest connects the webbing to the buckle, that is, It is undeniable that the tongue attachment / detachment work is likely to be hindered.

On the other hand, in the latter configuration in which the buckle is juxtaposed at the front position of the armrest or the like, since the buckle is not embedded in the side portion of the seat cushion, the cushioning property of the seat cushion is secured. In addition, since the armrest and the buckle are independent in the front-rear direction of the seat cushion, it is possible to surely prevent deterioration in gripping performance with respect to the grip portion and detachability of the tongue.

However, in this latter structure, the buckle is present as a separate member in front of the armrest, and thus tends to cause a narrow side space of the seat cushion. Since the side space of this seat cushion is a space through which the hips or thighs of a seated person pass when getting on and off, if the space is narrowed by the buckle, there is a risk that it will hinder the seating person from getting on and off. Is fully conceivable.

Further, since the separate buckles and armrests are juxtaposed in the front-rear direction, a large feeling of that portion is unavoidable and the appearance quality is likely to deteriorate.

An object of the present invention is to provide a seat armrest structure in which a cushioning property of a seat cushion is ensured, and a buckle and an armrest can be provided together without causing a reduction in side space and a deterioration in appearance quality. There is.

[0010]

To achieve this object, according to the present invention, a notch is provided in a part of the armrest, and the buckle is arranged in the notch so that the armrest and the buckle are integrated. It has a shape. And
The buckle is provided on the armrest so as to be swingable at least inside the seat cushion.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, in the armrest structure 10 for a seat according to the present invention, the armrest
12 is formed as a grip-combined type having a grip portion 12a that can be gripped by a seated person as a part thereof, and is capable of supporting the arm portion of the seated person, at a side portion of the seat cushion 14, for example, a seat cushion frame (not shown). ) Etc. to the base member,
It is connected and fixed by a fixing bolt 16 or the like.

An example of the seat 17 provided with this type of grip and armrest 12 is an industrial vehicle seat such as a forklift.

In this type of seat 17, as a protection device for a seated person, a so-called two-point type is usually installed and connected between the left and right sides of the seat cushion 14 near the base of the thigh of the seated person. Since the seatbelt of is installed, an automatic winder (referred to as a retractor)
A buckle that allows the webbing wound from one side to be connected and held under the insertion of a tongue at its tip.
On the other side of the seat cushion,
It is attached with 12.

Since the basic structure of the armrest 12 that also serves as a grip and the basic structure of the buckle 18 are well known, and the basic structure or function itself is not the gist of the present invention, a detailed description thereof will be given below. It is omitted here.

In the present invention, for example,
A notch 20 is provided at a part of the armrest 12, for example, at a front position (left position in FIG. 2) of the grip portion 12a, and by disposing the buckle 18 in the notch, the armrest and the buckle are integrated. I am trying. Further, in the embodiment of the present invention, the buckle 18 is supported by the support piece 22 so as to be able to swing in four directions on two straight lines that are orthogonal to each other, and the arrangement recess 24 formed in the armrest 12 is arranged. This support piece is connected and fixed to a predetermined base member, for example, a seat cushion frame or the like common to the armrest via.

The buckle 18 is for the armrest 12.
For example, it is arranged in the forward tilt direction, and its swing direction with respect to the armrest is, for example, the left-right direction and the up-down direction of the seat cushion 14 (see the arrow in FIG. 1). The notch 22 is formed in, for example, a substantially fan shape so as to ensure the above.

The swinging of the buckle 18 in the left-right direction of the seat cushion 14 is sufficient if it goes from the position aligned with the notch 20, which is the initial position, to the inside of the seat cushion, so that the armrest can be moved outside the seat cushion. In this case, swinging toward one is not particularly required.

For example, if the support piece 22 is a flexible support arm, the buckle 18 can be swung in the left-right direction under the bending of the support piece. Then, if the buckle 18 is connected to the support piece 22 so as to be rotatable in a direction orthogonal to the flexure, four directions, that is, the left and right direction of the seat cushion 14, are caused by the flexure of the support piece and this rotation. Also, it is possible to secure the swinging of the buckle in the vertical direction.

As described above, according to the armrest structure 10 of the seat of the present invention, the armrest 12 is provided with the notch 20, and the buckle 18 is arranged in the notch. That is, since the buckle 18 and the armrest 12 are provided side by side on the seat cushion side without being embedded in the side part of the seat cushion 14, the buckle can be easily arranged without narrowing the effective width of the seat cushion. Therefore, in the present invention, it is possible to easily secure the side-by-side arrangement that does not impair the cushioning property of the seat and the comfort of the seated person.

Further, since the grip portion 12a of the armrest and the buckle 18 are arranged without overlapping in the left-right direction of the seat cushion 14, the gripping property with respect to the grip portion is improved and the work for attaching / detaching the webbing to / from the buckle is facilitated. It can certainly be realized.

Further, according to the present invention, the buckle 18 is arranged in the notch 20 of the armrest, and particularly at the front position of the armrest, since the buckle does not protrude outwardly, the seat cushion caused by the presence of the buckle. According to the present invention, the narrowing of the lateral space of 14 is reliably prevented. Therefore, it is possible to easily ensure a smooth boarding / alighting operation of the seated person.

Further, since the armrest 12 is integrally formed with the buckle 18, it is possible to reliably prevent the armrest portion on the side portion of the seat cushion 14 from being enlarged.
Then, this surely improves the appearance quality of the armrest portion, and by extension, the seat 17.

In the present invention, the buckle 18
Can be swung with respect to the armrest 12. In other words, since the buckle 18 easily allows an angle variation corresponding to the extension angle of the webbing from the corresponding side portion of the seat cushion 14 or the insertion angle of the tongue, the fit of the webbing to the seated person can be ensured. Improve to.

Here, in the embodiment of the present invention, the support piece 22 of the buckle is connected to a base member common to the armrest 12, for example, a seat cushion frame,
Although it is embodied as being fixed, the invention is not limited to this, and the buckle 18 may be connected to the armrest itself, for example.

However, as in this embodiment,
If the buckle 18 is directly connected and fixed to the base member common to the armrest 12, the load applied to the buckle from the webbing is directly released to the base member, so that the attachment strength of the buckle is surely increased. That is, since it is not necessary to strengthen the holding strength of the armrest 12 with respect to the buckle 18, the structure of the armrest itself can be easily simplified.

As shown in FIG. 2, in this structure, at least a part of the fixed portion of the armrest 12 with respect to the base member, for example, one fixing bolt 16 is shared, and the support piece 22 is used as a base. It is preferably fixed to the member. With such a configuration, it is possible to reduce the number of fixing members such as fixing bolts and reduce the number of fixing works, so that workability is improved and cost is reduced.

In the embodiment of the present invention,
Although the swinging angle of the buckle 18 is embodied as four directions of the seat cushion 14 in the left-right direction and the up-down direction, the invention is not limited to this. For example, the seat cushion 14 can be moved in the left-right direction, that is, inward of the seat cushion, and its direction. There may be only two directions of return. However, the buckle
If the swinging angle of 18 is set in four directions, the variation angle of the buckle becomes various, and the variation angle of the buckle corresponding to the extension angle of the webbing from the corresponding end portion of the seat cushion 14 or the insertion angle of the tongue. You can get it properly
The fit of the webbing to the seated person is further improved.

In this embodiment, since the buckle 18 is arranged to be inclined forward, the swing direction is specified as the vertical direction, but the buckle is arranged substantially vertically. In this case, it is preferable that the vertical direction in this embodiment be four directions in which the vertical direction is replaced by the front-back direction.

In this embodiment, the support piece 22 is a flexible support arm, and the buckle 18 can be swung inward under the bending of the support piece. However, the invention is not limited to this. Alternatively, for example, the buckle may be rotatably connected to the support piece, and the swinging inward may be obtained under the rotation of the buckle.

Further, by making the buckle 18 rotatable with respect to the support piece 22, the buckle can be swung in the vertical direction. However, the present invention is not limited to this, and for example, a support piece
22 may be rotatably connected to the fixing bolt 16, and the swinging of the buckle in the vertical direction may be obtained under the rotation around the fixing bolt.

In the embodiment of the present invention,
The buckle 18 is arranged at the front position of the grip portion 12a. However, the invention is not limited to this, and for example, the grip part
The buckle 18 may be arranged at the rear position of the 12a.

In this embodiment, as a seat, a seat for an industrial vehicle such as a forklift is exemplified. However, the present invention is not limited to this, and the present invention is applied to an industrial vehicle other than a forklift, for example, a seat such as a crane or a power shovel, or another vehicle, for example, an armrest structure of a seat such as a truck or various special vehicles. Good.

The above-described embodiments are for explaining the present invention, and do not limit the present invention in any way, and all modifications and alterations made within the technical scope of the present invention are also included in this embodiment. Needless to say, it is included in the invention.

[0035]

As described above, according to the armrest structure for a seat according to the present invention, the buckle and the armrest can be provided together on the side portion of the seat cushion without burying the buckle on the side portion of the seat cushion. Sex, and by extension, comfort of the seated person is not impaired. Further, since the grip portion of the armrest and the buckle are arranged without overlapping in the left-right direction of the seat cushion, the gripping property with respect to the grip portion is improved and the attachment / detachment work of the webbing with respect to the buckle is surely facilitated. Be done.

Further, since the buckle is arranged in the notch of the armrest, the width reduction of the side space of the seat cushion due to the existence of the buckle can be reliably prevented. Therefore, it is possible to easily ensure a smooth boarding / alighting operation of the seated person.

Further, since the armrest is integrally formed with the buckle, it is possible to reliably prevent the armrest portion on the side portion of the seat cushion from becoming large. Therefore, the appearance quality of the armrest portion and thus of the seat is surely improved.

Further, since the buckle can be swung with respect to the armrest, the fit of the webbing to the seated person can be surely ensured by the angle variation of the buckle corresponding to the extension angle of the webbing or the insertion angle of the tongue. improves.

Further, when the swinging angle is set to the four directions of the seat cushion in the left-right direction and the up-down direction, the buckle can be varied in various angles, and the fit of the webbing to the seated person can be further improved.

Further, if the buckle is directly connected and fixed to the seat cushion side base member common to the armrest, the load applied to the buckle from the webbing is directly released to the base member, so that the attachment strength of the buckle is ensured. Increase. That is, since it is not necessary to strengthen the holding strength of the armrest with respect to the buckle, the structure of the armrest itself can be easily simplified.

By fixing the supporting piece of the buckle to the base member while sharing at least a part of the fixing portion of the armrest with respect to the base member, it is possible to reduce the number of fixing members and the number of fixing works. Therefore, the workability can be improved and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an armrest structure of a seat according to the present invention as viewed from the inside of a seat cushion.

FIG. 2 is a schematic side view of the armrest structure partially broken, as viewed from the outside of the seat cushion.

[Explanation of symbols]

10-seat armrest structure 12 Armrest 12a grip part 18 buckle 20 notches 22 Support piece

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-61662 (JP, A) JP-A-6-247254 (JP, A) Actual flat 7-30793 (JP, U) Actual flat 1- 81355 (JP, U) Jitsukaihei 3-70556 (JP, U) Jitsuho Sho 58-33004 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) A47C 7/54 B60N 2 / 46 B60R 22/26

Claims (5)

(57) [Claims] 1. A seat belt webbing and a buckle to which the webbing is connected are respectively arranged on one side portion and the other side portion of the seat cushion, and an armrest also serving as a grip is provided on the seat cushion side base member. In a seat with an armrest that is fixedly attached to at least the buckle side, a notch is provided in a part of the armrest, and the buckle is placed in the notch to form an integrated armrest and buckle. The seat armrest structure is characterized in that the buckle can be swung at least inside the seat cushion with respect to the armrest. 2. A seat belt webbing and a buckle to which the webbing is connected are arranged on one side and the other side of the seat cushion, respectively, and an armrest also serving as a grip is provided on the seat cushion side base member. In a seat with an armrest, which is fixed at least on the side of the buckle, the buckle can be swung in at least one straight line in two directions by a supporting piece, and a cutout is provided in a part of the armrest. , The armrest by the placement of the buckle in this notch with the connection of the support piece to the predetermined seat cushion side base member,
An armrest structure for a seat, characterized in that the buckle has an integrated shape capable of swinging the buckle, and the swinging direction of the buckle is the left-right direction with respect to the seat cushion. 3. The buckle is in a form supported by a support piece so that it can swing in four directions on two orthogonal straight lines, and the swing direction of the buckle is the left-right direction of the seat cushion, or the up-down direction, or The armrest structure for a seat according to claim 2, wherein the armrest structure is set in either the front or rear direction. 4. The armrest structure for a seat according to claim 2, wherein the support piece for supporting the buckle is connected to a seat cushion side base member common to the armrest. 5. The support piece for supporting the buckle is connected to a common seat cushion side base member by sharing at least a part of a fixing portion of the armrest to the seat cushion side base member. Seat armrest structure.