JPH0226509A - Holder for head rest - Google Patents

Abstract

PURPOSE:To thin the thickness of an upper projecting part by providing a spring in the lower position of an engaging plate and embedding the spring in the cushion member of a back rest seat when it is fitted. CONSTITUTION:The title holder is equipped with a supporting cylinder 5 insert- fitted to a fitting member 6 provided inside a back rest seat 1, a case body 9 to be unitedly formed in the upper part of the supporting cylinder 5, an engaging plate 16 having an engaging part 15 engaged with an engagement recessed part 8 of a pillar 7 of a head rest provided to the case body 9 and a spring 22 to execute an energization so that the engaging part 15 can be engaged with the engagement recessed part 8. The spring 22 is provided in the lower position of the engaging plate 16, and it is embedded in a cusihon member 3 of the back rest seat 1 when it is fitted. As a result, the upper projecting part is tinned, and when the head rest is lowered down to the lowest position, a gap cannot be generated between the upper surface of the back rest seat and it.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a headrest holding device.

(Prior art) In the conventionally known Japanese Utility Model Publication No. 51-24664, a υ holding tube is inserted into a mounting member provided in a back seat, and a door portion is embedded in a 2-shoulder member of a 61 seat seat. an engagement plate having an engagement part that engages with an engagement recess of the pillar provided in the casing, and the engagement part engages with the engagement recess. A headrest retaining device is described having a spring biasing the headrest. The spring in this known example is provided at an upper position of the engagement plate.

(Problems to be Solved by the Invention) As mentioned above, the spring that biases the engagement plate in the known example is
Because it is installed at the top of the engagement plate, when it is installed, the thickness of the casing exposed on the top of the back seat becomes thicker by the amount of the spring, which makes it look unsightly, and the headrest has to be lowered to the lowest position. Occasionally, there would be a gap between the seat back and the top of the seat.

In the present application, the upper protruding portion is made thin so that when the headrest is lowered to the lowest position, there is no gap between it and the upper surface of the back seat.

(To solve the problem jlQ) Therefore, the present invention provides a support tube 5 that is inserted into a mounting member 6 provided in the backrest seat 1, and a bamboo frame integrally formed on the upper part of the support tube 5. an engagement play H6 having an engagement portion 15 that engages with the engagement recess 8 of the pillar 7 of the headrest provided in the housing 9; and the engagement portion 15 that engages with the engagement recess 8. In the headrest holding device, the spring η is provided at a position below the engagement plate 16, and when attached, the shoe 9 of the back seat l
This is a headrest holding device which is embedded in the first floor member 3.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a back seat of a vehicle seat, 2 a frame frame of the back seat 1, 3 a cushioning material of the back seat 1, The outer peripheral surface of the cushion material 3 is covered with a skin 4.

Reference numeral 5 denotes a support tube made of synthetic resin, and the support tube 5 is fixed to a mounting member 6 fixed to the skeleton frame 2. A headrest pillar 7 is inserted into the support tube 5 from above to attach the headrest. Supports vertically adjustable.

The pillar 7 is formed of a metal round bar, and engagement recesses 8 are formed on the outer peripheral surface at predetermined intervals vertically.

A housing 9 is integrally formed on the upper part of the support tube 5 to form a holder. A lateral substrate 10 is formed on the upper and lower ends of the housing 9 in the vertical direction, and the substrate 10 extends in the lateral direction and comes into contact with the upper surface of the cushioning material 3 of the backrest sheet 1. The support tube 5 Connect the upper ends of the

The lower portion 43 has an insertion hole l! connected to the support cylinder 5! Form the insertion hole! ! Insert the pillar 7 further.

The substrate 10 has a rectangular shape, and has upstanding walls l standing upwardly on three sides of its outer periphery. A horizontally protruding flange portion 13 is formed on the inner side of the interior surrounded by the upright wall 12. The protruding flange opening is provided only on the back side and is open on the entrance side. A sliding groove 1 is provided between the protruding flange 13 and the upper surface of the substrate 10.
4, and the engagement plate 1B is slidably inserted into the sliding groove 14. Therefore, the engagement plate 16 slides with only its front end and side edges fitting into the sliding groove 14.

J is an opening for attaching the engagement plate 16 to the housing 9.

The engagement plate 16 is formed of a metal flat plate, and has an insertion hole 17 larger than the insertion hole 11 formed at the tip side. An engagement portion 6 that overlaps with the insertion hole 11 is formed in the insertion hole 17, and the engagement portion! 5 is the engagement recess 8 of the pillar 7
engage with. 18 is a knob portion of the engagement plate 16.

Protrusions 19° 19 projecting downward are formed on both left and right sides of the side edge between the insertion hole 17 of the engagement plate 16 and the knob portion 1B. The protrusion 19 is formed by bending to ensure strength in the direction of movement of the engagement play 16.

substrate! A moving groove 21.21 parallel to the moving direction of the engagement plate 16 is formed in O, and a protrusion step 19 projecting downward from the engagement plate 16 is fitted into the moving groove 21.21 from above. .

At the lower critical center of the lower part of the moving groove 21.21.

A housing 23% of the coil springs η and η is formed. The housing n, 23 communicates with the outside through an insertion hole 24.24, through which the coil springs η, η are inserted. The coil spring n, 22 is the substrate! 0 and is buried in the cushion member 3 of the backrest seat l. The protrusion 19.9 of the engagement plate 16 is in contact with the end of the coil spring η, 22, and the engagement portion of the engagement plate 16 is always in contact with the end of the coil spring η. 5 is urged to engage with the engagement recess 8 of the pillar 7.

A recess δ into which the head 41 of the screw head is depressed is formed in the substrate 10 between the movement grooves 21 and the lower part thereof, and an insertion opening C for the screw is formed in the center of the recess 3. Insert the screw into the recess δ from above.

It is screwed onto the upper plate n of the mounting member 6.

The screw thread is provided with an insertion hole (9 ), and the screw π is inserted into the insertion opening C through the insertion hole (9).

An engagement recess 31 is formed on the opening π side of the substrate IO, and an engagement protrusion is formed on the lower surface of the knob 18 of the engagement plate 16 in the engagement recess 31. mate. Engagement protrusion! contacts the wall inside the engagement recess s31 to prevent the engagement play Ha from coming off.

34 is a lid attached to the upper part of the housing 9, and the insertion hole 5
The protrusion r formed on one periphery and having an opening part is attached to the substrate 1.
Attach by engaging with the engagement groove blade formed on the outer periphery of 0.

(effect) Next, we will discuss the effect.

Since the present invention has the above-mentioned configuration, the housing n, 23 of the coil springs η, η is formed in the lower portion C below the substrate 10 of the housing 9 of the holder, and the housing n, 23 is provided with the insertion hole 24. 24 communicates with the outside, so the coil spring η, 22 is inserted through the insertion hole 24.24.

A sliding groove 14 is formed between the upper surface on the back side of the substrate 10 and the protruding flange 13, and a moving groove 21. is formed on the opening π side of the substrate 10.
21 is formed, so the tip of the engagement plate 16 fits into the sliding groove of the housing 9! 4, the protrusions 19, 19 of the engagement plate 16 are fitted with the movement grooves 21° 21CFe of the substrate 10, and the coil spring η is elastically installed on the engagement plate 16.
The engagement plate 16 is attached to the housing 9 with the engagement protrusion on the lower surface of the knob portion 18 abutting against the wall of the engagement recess 31 .

When the support cylinder 5 of the holding body is inserted into the mounting holes formed in the upper plate n and the lower plate (of the mounting member 6 provided in the back seat 1), the housing 9 is inserted into a part of the upper plate n. In this case, a recess is formed in the substrate 10 and the lower part 43 of the housing 9 of the holding body, and an insertion opening C for a screw is formed in the center of the recess δ. Therefore, a screw rod is inserted into the recess 3 from above, and the support tube 5 is fixed to the upper plate n of the mounting member 6 by screwing with the screw rod.

In this case, the head 4 of the screw is located between the protrusions of the engagement play eyes 6 and 4! Since the larger insertion hole side is formed, the screw tension is larger than that of the engagement plate 16 in the housing 9.
Can be fixed with the attached.

Since an engaging groove is formed on the lower edge of the side of the substrate 10, the lid is attached to the housing 9 by pushing in the lid while engaging the protrusions of the lid with the engaging groove blades.

When the knob 18 of the engagement play H6 is pushed forward, the insertion hole 17 of the engagement play H6 and the insertion hole 1 of the board 10 are pushed forward.
1 matches, so insert the headrest pillar from above.

When the knob portion 18 of the engagement plate 16 is released, since the coil spring η is in contact with the protrusion 19 of the engagement plate 16, the elasticity of the coil spring η causes the engagement portion of the engagement plate H6 to return to its original position. The engaging portion 15 engages with the engaging recess 8 of the pillar 7 to hold the headrest.

In this case, the engagement plate! A coil spring η biases the engagement plate 16 so that the engagement portion 15 of the pillar 7 engages with the engagement recess 8 of the pillar 7. The lower part 43 is stored in the center of the lower part of the backrest seat l, and the lower part 43 is stored in the lower part of the shoe 9 of the back seat l. Since the housing 9 is embedded in the cover member 3, the thickness of the housing 9 exposed on the upper surface of the backrest sheet 1 can be reduced. Therefore, when the headrest is lowered to the lowest position, t! J, and the height adjustment range of the headrest can be widened.

(Effects) The present invention includes a support cylinder 5 that is inserted into a mounting member 6 provided in the back seat l, a housing 9 that is integrally formed on the upper part of the support cylinder 5, and a housing 9 that is attached to the housing 9. an engagement plate 16 having an engagement part 15 that engages with an engagement recess 8 of a headrest pillar 7 provided; a spring n that urges the engagement part 15 to engage with the engagement recess 8; In the headrest holding device, the spring η is provided at a lower position of the engagement plate 16, and when attached, the spring η is embedded in the cushion member 3 of the backrest seat 1. Therefore, (1) the thickness of the casing 9 exposed on the upper surface of the backrest sheet 1 can be reduced.

- When the headrest is lowered to the lowest position, it can be brought into close contact with the upper surface of the backrest seat 1, and the height adjustment range of the headrest can be widened.

This effect is achieved.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view, Fig. 2 is an assembled perspective view, Fig. 3 is a perspective view of coil spring insertion, Fig. 4 is a longitudinal front view, Fig. 5 is a longitudinal front view, Fig. 6 is a plan view, FIG. 7 is a plan view of the engagement plate. Explanation of the symbols 1...back seat, 2...skeleton frame, 3...
Cushion material, 4... Outer skin, 5... Support tube, 6...
・Mounting member, 7... Pillar, 8... Engagement recess, 9.
...the housing! 0... Board, 11... Insertion hole,...
・Standing wall, 13...protruding flange,! 4...Sliding groove, Takumi...Engaging part, 16...Engagement play), 17...Insertion hole, Old...Knob part, 19...Protrusion. Redundancy...opening, 21...movement groove, 22...coil spring, n...housing, 24...insertion hole, b...
・Concavity, in...screw, 27...upper plate, Tatsumi...insertion hole, 31...engaging recess,! ...Engagement protrusion, 33.
...Wall, Separate...Lid, A...Through hole, Straw...Opening, r...Protrusion, (...Engagement groove, (...Lower plate, 40
... Holding body, 41 ... Head, C ... Insertion port, Invitation ... Lower part. Figure 3 Dimpen area U)

Claims (1)

[Claims] A support cylinder 5 that is inserted into a mounting member 6 provided in the back seat 1, a housing 9 that is integrally formed on the upper part of the support cylinder 5,
Engagement recess 8 of headrest pillar 7 provided in the housing 9
In the headrest holding device, the headrest holding device includes an engagement plate 16 having an engagement portion 15 that engages with the engagement plate 16 , and a spring 22 that urges the engagement portion 15 to engage with the engagement recess 8 . is provided at a lower position of the engagement plate 16, and when attached, the cushion member 3 of the backrest seat 1
A headrest holding device that is embedded in the headrest.