JPS6274312A - Shaking apparatus with buffer - 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] [Object of the Invention] (Field of Industrial Application) The present invention! ! Regarding the impact swinging device 4. INDUSTRIAL APPLICATION This invention can be utilized for the power set side support apparatus assembled into the seat of a vehicle, for example. The power set night-length boat device uses a motor to swing a support wire to support the passenger's side while sitting in the seat.
This is a device that tightens from the side to hold the occupant in place.

(Prior Art) Night support devices that have been provided heretofore have a base body and a support wire swingably supported on the base body as main components. By swinging the support wire, the armpits of the passenger sitting in the seat were tightened.

This conventional side support device does not have a shock absorbing body, so the shock absorbing function when stopping the swing of the rocking body was not sufficient.

(Problems to be Solved by the Invention) The present invention has been made to solve the above-mentioned problems, and its purpose is to improve
The object of the present invention is to provide a rocking device having an I function.

[Structure of the Invention] <Means for Solving the Problems] A rocking device with a shock absorbing device according to the present invention includes a base body, a rocking center on the base body, and a pivot support that is swingable about the rocking center. a swinging body provided on the base body and having a guide hole extending in the swinging direction of the swinging body; a bracket attached to the swinging body and fitted into the guide hole so as to be able to reciprocate within the guide hole; having a guided locking portion and a shaft portion provided between the locking portion and the base body and engaging with the locking portion;
a driving part that reciprocates the locking part within the guide hole by driving the shaft part; It is composed of a side end and a buffer body that comes into contact with it.

(Function) When the shaft portion is driven by the drive portion, the locking portion moves forward or backward within the guide hole. Then, the rocking body to which the locking part is attached swings about its rocking center. At this time,
Since the buffer body contacts the longitudinal side end of the guide hole, the movement of the locking portion and the rocking motion of the rocking body are damped by the buffering effect of the buffer body.

(Embodiment) FIGS. 1 to 3 show an embodiment in which a shock-absorbing rocking device according to the present invention is applied to a side support device of a vehicle.

(1) Structure of the embodiment The shock absorbing rocking device according to the present embodiment includes a base body 1, a support wire 2 as a rocking body, a bracket 3, and a locking part 4.
, a drive section 5 , and a buffer body 6 .

(Base 1) As shown in FIG. 2, the base 1 is a part of a frame forming the backrest of a vehicle seat. The base body 1 has a vertical portion 10 and σ11 and a horizontal portion 12, as shown in FIG.
It is shaped like a habomon. Mounting plates 13, 14 are attached to the vertical part 10 of the base body 1 by welding. Furthermore, mounting plates 15 and 16 are attached to the vertical portion 11 by welding. The mounting plates 13-16 have holes 13a-16a. An S spring 17 is attached between the vertical parts 10 and 11. A urethane foam portion 8 forming a seat cushion is provided around the base body 1. As shown in FIG. 2, one end 22c of the connecting rod 22 is connected to one support wire 2, and the other end 22d and the other support wire 2 are connected by a link 22a. Therefore, the lower portions of one set of two support wires 2 are connected by a connecting rod 22 and a link 22a. Therefore, the connecting rod 22 and the link 22.
8, the two sets of support wires 2 are interlocked.

(Support wire 2) The support wire 2 as a rocking body is a member that tightens the sides of the square circle, and is bent into a substantially C-shape as shown in FIG. The support wires 2 are comprised of two sets, one of which is fitted into holes 13a and 14a of the mounting plates 13 and 14 of the male body 1 and pivotably supported on the base body 1. The other hole is the hole 15a of the mounting plate 15 and 16 of the base body 1.
and 16a, and is pivotably supported on the base 1. Here, the hole 1 into which the support wire 2 is fitted
3a to 16a are the swing centers of the support wire 2.

As shown in FIG. 3, the support wire 2 has a rocking plate 20 fixed thereto. Furthermore, as shown in Fig. 3, the swing plate 2
0 has a swinging part 200 and a connecting part 201, and the swinging part 20
A circular hole 20a into which the locking portion 4 is fitted is formed in the hole 20a.

(Bracket 3) The bracket 3 is attached to the base 1 by welding. The bracket 3 has a frame portion 300 and two tongue portions 310. There is a space 3 between the two tongue pieces 310 as shown in FIG.
It is said to be 10a. The swing plate 20 can swing in the direction of arrow C and in the opposite direction within the space 310a. A guide hole 30 is formed in the tongue portion 310 of the bracket 3 and extends from the side end 30b to the side end 30c in the swinging direction of the support wire 2. Two holes 31 for mounting the drive unit 5 are formed in the frame 300 of the bracket 3.

<Locking Part 4> The locking part 4 is composed of a small diameter cylindrical part 40 and a large diameter cylindrical part 41, as shown in FIG. A dovetail hole 41a is formed in the large diameter cylindrical portion 41. Here, by fitting the locking portion 4 into the circular hole 20a of the rocking plate 2o, the locking portion 4 is attached to the rocking plate 2o.
In turn, it is attached to Support Y V2. In this state, the locking portion 4 is fitted into the guide hole 30 as shown in FIG. Therefore, when the support wire 2 swings, the swing plate 20 swings integrally, so that the locking part 4 is guided by the guide hole 30 and moves inside the guide hole 30 in the direction of arrow C along the direction in which it extends. (as shown in Figure 1) or in the opposite direction.

(Drive Unit 5) The drive unit 5 includes a motor housing 5a, a speed reduction mechanism provided in the motor housing 5a, and a motor 5b connected to the speed reduction mechanism. The drive unit 5 is
Between the locking part 4 and the base 1, that is, the frame part 3 of the bracket 3
00 by bolts 50 and 51.

Here, the motor housing 5a of the drive unit 5 is swingable relative to the bracket 3 around bolts 50 and 51. The drive unit 5 has a motor shaft portion 52 as a shaft portion. The motor shaft portion 52 is driven by the motor 5b, and has a threaded portion 5 at its tip, as shown in FIG.
2a, and has a mounting portion 52b with an oval cross section at the base end. The motor shaft portion 52 includes washers 53, 54 and nuts 55.
It is attached to the motor housing 5a of the drive unit 5 by. As is clear from FIG. 3, the male threaded portion 52a of the motor shaft portion 52 is engaged by screwing into the dovetail hole 41a of the large diameter cylindrical portion 41 of the locking portion 4.

Therefore, when the motor shaft portion 52 rotates forward or reverse, the locking portion 4 reciprocates within the guide hole 30 along the direction in which it extends.

(Buffer 6) The buffer 6 consists of a set of two as shown in FIG. The buffer body 6 includes a buffer part 60 made of a ring-shaped rubber elastic material 60 that covers the circumference of the small diameter cylinder part 4o of the locking part 4, and a metal protection ring attached to the outside of the buffer part 60. 61 and
Consists of. Here, the buffer portion 6 is attached to the small diameter cylindrical portion 40 of the locking portion 4.
0 is fitted, the buffer body 6 is attached to the locking part 4 by screwing the bolt 62 with a washer into the dovetail hole 40a in the small diameter cylindrical part 40. As a result, as shown in FIG. 1, the buffer body 6 is held within the guide hole 30 on both sides of the locking portion 4 in the swinging direction. Note that the buffer portion 60 is covered and protected by the washer 62a of the washer-equipped bolt 62.

(2) Operation of the embodiment The motor 5b connected to the deceleration gate mechanism in the motor housing 5a of the drive section 5 is energized to rotate the motor shaft section 52. Then, the locking part 4 screwed into the male threaded part 52a of the motor shaft part 52 gradually moves in the direction of arrow C within the guide hole 30.
It moves forward in the direction (as shown in Figure 1). As a result, the swing plate 20
The supporting wires 2 also swing in the same direction, and furthermore, the support wire 2 also swings in the same direction, that is, in the direction of the arrow shown in FIG. At this time, the locking portion 4 moves slightly in an arc shape along the guide hole 30. 1, the motor housing 5a of the drive section 5 also swings slightly around the bolt 50, so that no unreasonable force is applied to the motor shaft section 52.

In this way, when the locking portion 4 moves forward to one side end 30b in the extending direction of the guide hole 30 and the buffer body 6 comes into contact with the side end 30b, the side end 30b functions as a stopper. Therefore, the movement of the locking part 4 and the support wire 2 is stopped there.

By the way, when the locking part 4 and the support wire 2 stop, the shock at the time of stopping is alleviated by the buffering action of the buffer part 60 of the wi impactor 6. Therefore, the load on the motor 5b when the locking portion 4 and the support wire 2 stop is reduced accordingly. Furthermore, when the support wire 2 tightens and holds the occupant's armpits, the impact on the occupant is alleviated.

As described above, when the support wire 2 on the drive unit 5 side of the set of two support wires 2 swings in the direction indicated by the arrow, the link 22a integrated therewith also swings in the same direction, and the connecting rod 22 also swings in the same direction. It operates in the direction of arrow S, and as a result, the other support wire 2 that does not have the drive part 5 also moves into the hole 16a.
It swings in the direction of arrow B around . Therefore, inside the seat, the occupant is restrained from the left and right sides by the two sets of support wires 2.

On the other hand, when it is desired to remove the support wire 2, for example when the occupant gets off the seat, the motor 5b of the drive section 5 is rotated in the opposite direction. Then, the motor shaft portion 52 rotates in the opposite direction to that described above. Therefore, the locking portion 4 moves back along the guide hole 30 in a direction opposite to the direction of arrow C. As a result, the swinging portion 20 and the support wire 2 also swing in the direction opposite to the direction of the arrow.

When the locking portion 4 reaches the other side end 30c of the guide hole 30 in the extending direction, the buffer body 6 comes into contact with the side end 30c. Therefore, the side end 30c functions as a stopper, and the movement of the locking part 4 and the movement of the support wire 2 are stopped there.

When the locking part 4 and the support wire 2 stop as described above, the shock at the time of stopping is alleviated by the buffering action of the buffer part 60 of the buffer body 6. Therefore, the motor 5b of the drive unit 5
The load on is reduced as described above. - As described above, when the one support wire 2 on the drive unit 5 side swings in the direction of the arrow and in the opposite direction, the connecting rod 22
The other support wire 2 that does not have the driving part 5 also swings in the direction opposite to the direction of arrow B, so that the occupant in the seat can remove the support wire 2.

(3) Effects of the Embodiment In this embodiment, as described above, the impact when the locking portion 4 and the support wire 2 stop 5 is dampened by the buffer portion 60 of the buffer body 6. Therefore, it is advantageous in terms of reducing the load on the motor 5b, which is opened when stopped.

By the way, in order to reduce the impact when the locking part 4 and the leaveboard wire 2 stop, as shown in FIG. It is also possible that it may become stuck. However, in this case, the buffer body 600 is not located within the guide hole 30 but outside the guide hole 30. Therefore, when the motor shaft section 52 is rotationally driven by the drive section 5, the buffer body 600 also rotates in the same direction, so that the urethane foam section 8 of the sheet surrounding the base body 1 is easily rolled up, and the urethane foam section 52 is rotated in the same direction. There is a problem in that the portion 8 is easily damaged. In this regard, in this embodiment, as shown in FIG.
There is no need to make it protrude more outward than 0. Therefore, the problem of the urethane foam portion 8 of the sheet being rolled up can be solved.

Moreover, unlike the case shown in FIG. 4, the end portion 52C of the Tanabata shaft portion 52 does not protrude outward from the tongue portion 310 of the bracket 3, so the thickness of the urethane foam portion 8 can be increased accordingly. This is advantageous in ensuring the cushioning properties of the seat.

Furthermore, in this embodiment, the buffer body 6 includes a buffer part 60 made of a ring-shaped rubber elastic material held so as to cover the locking part 4, and a metal protection coated on the outside of the buffer part 60. This configuration consists of a ring 61.

Therefore, the buffer section 60 is protected by the protection ring 61. Therefore, the buffer body 6 is attached to the side ends 30b, 30 of the guide hole 30.
When it comes into contact with C, the buffer part 60 b< JFI is damaged J3
You can eliminate it.

[Effects of the Invention] As is clear from the above description, in the present invention, the impact when stopping the movement of the rocking body can be alleviated by the buffer body.

[Brief explanation of drawings]

Figures 1 to 3 show a typical embodiment of the present invention, with Figure 1 being a plan view of the main parts, Figure 2 being a perspective view of the main parts of the support wire device, and Figure 3 being a perspective view of the main parts of the support wire device. The figure is an exploded perspective view of the main parts. FIG. 4 is a plan view of the main parts when the buffer body 6 is positioned outside the guide hole. In the figure, 1 is the base, 10 and 11 @1 part, 12 is the horizontal part, 13 to 16 are the mounting plates, 2 is the support wire (oscillating body), 20 is the rocking plate, 3 is the bracket, 1 to 130 are the guides holes, 30b and 30c are side ends of the guide holes, 4 is a locking portion, 5
52 is a drive part, 52 is a motor shaft part (shaft part), 52a is a male thread part, 52b is a mounting part, 6 is a buffer body, 60 is a buffer part, 61
indicates a protective ring, respectively. Patent applicant Aisin Seiki Co., Ltd. Agent
Patent Attorney Hiroshi Okawa Agent Patent Attorney Akio Maruyama Figure 3

Claims (4)

[Claims] (1) A base body, a rocking body having a rocking center on the base body and pivotably supported around the rocking center, and a guide hole provided in the base body and extending in the rocking direction of the rocking body. a bracket that is attached to the oscillator, a locking part that is fitted into the guide hole and guided so as to be reciprocally movable within the guide hole, and a locking part that is provided between the locking part and the base body and that locks the locking part. It has a shaft part that engages with the stop part,
a driving part that reciprocates the locking part within the guide hole by driving the shaft part; A shock absorbing rocking device consisting of a shock absorber that comes into contact with the side end. (2) The patented cushioning body consists of a cushioning section made of a ring-shaped rubber elastic material held so as to cover the locking section, and a metal protection ring attached to the outside of the cushioning section. A swinging device with a shock absorber according to claim 1. (3) The shock-absorbing rocking device according to claim 1, wherein the base body is a part of a frame forming the backrest of a vehicle seat, and the rocking body is a support wire that holds the side of the occupant. (4) The driving part is a motor, the shaft part is a motor shaft part having a threaded part at least at the tip, and the male threaded part of the motor shaft part is engaged by screwing into the locking part. and
2. The shock-absorbing rocking device according to claim 1, wherein the locking portion is reciprocated within the guide hole along the extending direction of the guide hole by normal and reverse rotation of the motor shaft portion.