JPH0226508A - Head rest holder - Google Patents

Abstract

PURPOSE:To execute a sure fixation and an easy fitting by fitting a supporting cylinder on the upper plate of a fitting member with a screw, forming a through hole larger than the head of the above-mentioned screw to an engaging plate and enabling to fasten the screw while the engaging plate is fitted to a case body. CONSTITUTION:The title holder is equipped with a supporting cylinder 5 insert- fitted to a fitting member 6 in a seat back 1, a case body 9 unified with the supporting cylinder 5 in which a lower part 43 is embedded in a cushion member 3, an engaging plate 16 having an engaging part 15 engaged with an engagement recessed part 8 of a pillar 7 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. In the lower position of the engaging plate 16, a recessed part 25, in which a head 41 of a screw 26 for fastening sinks, is formed, and in the central part of the concave part 25, an insertion port 42 of the screw 26 is formed. The screw 26 is inserted into the insertion port 42, it is fastened on an upper plate 27 at the back rest 1 side, and simultaneously, a through hole 30 larger than the head 41 of the screw 26 is formed to the plate 16 so that the screw 26 can be fastened while the plate 16 is fitted.

Description

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

(Prior art) The conventionally known Japanese Utility Model Publication No. 51-24664 discloses a support tube that is inserted into a mounting member provided in a backrest seat, and a support tube whose lower part is embedded in a cushion member of the backrest seat. an engagement plate having an engagement part that engages with an engagement recess of a pillar provided in the casing; and an engagement plate that urges the engagement part to engage with the engagement recess. A retaining device for a headrest is described having a spring.

In the known method of fixing the holding device to the backrest seat, the lower end of the support cylinder is made elastic, and this is inserted from the upper part of the mounting member, and the lower end of the support cylinder is elastically expanded and engaged. .

(Problems to be Solved by the Invention) In the above-mentioned known method, the mounting member is inserted from the top and the lower end of the support tube is elastically expanded for engagement, so the fixation is not reliable and looseness occurs. This was a contributing factor.

The present invention ensures secure fixation, prevents rattling, and facilitates installation.

(Means for Solving the Problems) Therefore, the present invention provides a support tube 5 that is inserted into a mounting member 6 provided in the back seat 1, and a lower portion 43 that is embedded in the cushion member 3 of the back seat 1. a housing 9 that is integral with the support cylinder 5, a retaining plate (16) having an engaging portion 15 that engages with an engaging recess 8 of a pillar 7 provided in the housing 9, and the retaining portion 15. In the headrest holding device, a headrest 41 for fixing is provided at a lower position of the engagement plate 16 of the mechanism 9. A recess 6 is formed in which the screw is depressed, an insertion opening C for the screw is formed in the center of the recess δ, the screw is inserted into the insertion opening C, and the upper plate n on the side of the back seat 1 is inserted.
and the screw 3 is attached to the engagement plate 1 so that the screw 3 can be attached to the engagement plate 16 with the engagement plate 16 attached.
6 is a headrest holding position having an insertion hole I larger than the head 41 of the screw.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a back seat of a vehicle seat, 2 is a skeleton frame of the back seat 1, 3 is 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. is supported freely in m sections up and down.

The #-marked 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 provided on the upper part of the support cylinder 5. A lateral substrate lO is formed approximately at the vertical center of the casing 9, and is in contact with the upper surface of the cushioning material 3 of the backrest sheet 1;
The upper end of the support tube 5 is integrally connected to the lower end of the lower portion 43 of the substrate 10.

The lower part C has an insertion hole 1 connected to the support tube 5.
1 is formed, and the pillar 7 is inserted through the insertion hole 11.

The substrate 10 has a rectangular shape, and on three sides of its outer periphery there are upstanding I! 112 is formed. A horizontally protruding flange portion 13 is formed on the inner side of the interior surrounded by the standing wall l.

The protruding flange 13 is provided only on the back side and is open on the entrance side. A sliding groove 14 is provided between the protruding flange n and the substrate 10.
is formed, and the retaining plate 16 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 member 414.

In addition, the engagement plate 16 is attached to the housing 9 through an opening.

The engagement plate 16 is formed of a metal flat plate, and has an insertion hole 17 larger than the insertion hole 0 at the tip side. Insertion hole! 7 is formed with an engaging portion 15 that overlaps with the insertion hole 11, and the engaging portion 15 engages with the engaging recess 8 of the pillar 7.
engage with. 18 is a knob portion of the retention plate 16.

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

A moving groove 21.21 parallel to the moving direction of the engaging plate 16 is formed in the substrate 10, and a protrusion 19.21 projecting downward from the engaging plate 1B is fitted into the moving groove 21.21 from above. let A housing n, 23 of a coil spring η, 22 is formed in the lower part C below the moving groove 21.21. 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 η comes into contact with the protrusion 19 , 19 of the engagement plate 16 and always urges the engagement portion 15 of the engagement plate 16 to engage with the engagement recess 8 of the pillar 7 .

A recess δ into which the head 41 of the screw is sunk is formed in the substrate 10 and its lower part between the movement grooves 21, and an insertion opening C for the screw is formed in the center of the recess δ. A screw is inserted into the recess δ from above and screwed onto the upper plate H of the mounting member 6.

The screw has an insertion hole (up to ), and insert the screw into the insertion opening 42 through the insertion hole.

Said board! 0, an engaging recess 31 is formed on the side of the opening, and the engaging recess 31 has an engaging protrusion formed on the lower surface of the knob portion of the engaging plate 16. mate. The engagement protrusion comes into contact with a wall blade within the engagement recess 31 and prevents the engagement plate 16 from coming off.

A is a lid attached to the upper part of the housing 9, which has an opening after the insertion hole, and a protrusion g formed on the periphery that is attached to the substrate lO.
Attach by engaging with the engagement groove formed on the outer periphery of the

(effect) Next, we will discuss the effect.

Since the present invention has the above configuration, the coil spring η is inserted into the housing B formed in the lower part 43 below the substrate 10 through the insertion hole 24, and the tip of the engagement plate 16 is inserted into the housing 9.
sliding groove! 4, and the protrusion 19 of 16 (engagement play) 16
．． 19 is fitted into the moving groove 21, 21 of the base plate 10, and the coil spring η is elastically mounted on the engagement plate 16. When the engagement plate 16 is fitted into the engagement protrusion on the lower surface of the knob part 10, is the engagement recess 3
It comes into contact with the wall of No. 1 and is attached.

Therefore, when the support S@5 of the holding body is inserted into the mounting holes formed in the upper plate n and lower plate (of the mounting member 6 provided in the back support sheet l), the housing is attached to a part of the upper plate n. In this case, the lower portion 43 of the housing 9 of the holding body 40 comes into contact with the substrate 10 of the housing 9.
A recess 5 is formed in the lower part 43, and a screw insertion opening C is formed in the center of the recess δ, so a screw is inserted into the recess from above, and the support tube is opened by the screw. 5 is fixed to the upper plate n of the mounting member 6 with screws.

Therefore, since the support tube 5 is fixed to the mounting member 6 in the back support sheet 1 by a screwsmith, due to product variations, there may be a gap between the outer periphery of the support tube 5 and the upper plate n and lower plate of the mounting member 6. Even if a gap occurs, no play occurs in the lateral or vertical directions.

In this case, said engagement plate! Since an insertion hole 30 larger than the head 41 of the screw is formed between the protrusions 19 and 19 of 6, the screw can be fixed to the housing 9 with the retaining plate 16 attached. .

Since an engaging groove is formed on the lower edge of the side of the substrate 10, the lid U is attached to the housing 9 by pushing the protrusion of 1M34 into the engaging groove.

Therefore, the holding body 40 can be
Before installing the childcare seat 1, the coil spring η and the engagement plate 16 are installed, and in this state, the support tube 5 is inserted into the childcare seat 1 and fixed with screws, and then the lid 34 is installed to complete the installation work.

The troublesome installation of the coil spring η can be done before attaching the holder to the back support sheet 1, making assembly extremely easy.

Push the knob part of the engagement plate 16 forward.

The insertion hole 17 of the retaining plate 16 and the insertion hole 11 of the board 10
Since they match, insert the headrest pillar from above.

When the knob of the engagement plate 16 is released, the coil spring η is in contact with the protrusion 19 of the engagement plate 16.
The headrest is returned to its original position by the elasticity of the coil spring η, and the engaging portion δ of the engaging plate 16 engages with the engaging recess of the pillar to hold the headrest.

(Effects) The present invention provides a support tube 5 that is inserted into a mounting member 6 provided in the back seat 1, and a cushion member 3 of the back seat 1.
a casing 9 integral with the support cylinder 5 in which a lower portion 43 is embedded; an engagement plate 16 having an engagement portion 15 that engages with an engagement recess 8 of a pillar 7 provided in the casing 9; a spring η that urges the engaging portion 15 to engage with the engaging recess 8;
In the headrest holding device, a recess 3 into which the head 41 of the screw π for Ih is depressed is formed at a lower position of the engagement plate 16 of the housing 9, and the center of the recess δ is provided with the An insertion opening 42 for the screw thread is formed, and the insertion opening 4
2 and insert the screw 3 into the T-plate n on the back support sheet 1 side.
The headrest has an insertion hole 30 formed in the engagement plate 16 that is larger than the head 41 of the screw so that the screw can be attached with the engagement plate 16 attached. Since it is a holding device, ■ Because it is attached to the upper plate n of the mounting member 6 with screws,
Reliable installation and easy removal.

■ Due to product variations, the outer circumference of the support tube 5 and the mounting member 6 may
Even if there is a gap between the upper plate n and the lower plate, no rattling occurs in the lateral and vertical directions.

(2) The engagement plate 16 is formed with an insertion hole that is larger than the head 41 of the screw.

The screws can be installed while the engagement plate 16 is attached to the housing 9, and the troublesome installation of the coil spring η can be done before attaching the holding body to the back support sheet l, making assembly extremely easy. be.

This effect is achieved.

[Brief Description of the Drawings] Fig. 1 is a longitudinal side view, and Fig. 2 is an assembled perspective view. 3 is a perspective view of insertion of the coil spring, FIG. 4 is a longitudinal front view, FIG. 5 is a longitudinal front view, FIG. 6 is a plan view, and FIG. 7 is a plan view of the engagement plate. Explanation of symbols 1...Back support sheet, 2...Skeleton frame, 3...
Cushion material, 4... Outer skin, 5... Support tube, 6...
・Heavy member, 7... Pillar, 8... Engagement recess, 9.
... Housing, 10... Board, 11... Insertion hole,...
- Standing wall, 13...Protruding flange, 14...Sliding groove, 1
5... Engaging portion, 16... Engaging plate, 17...
Insertion hole, 18...knob part,! 9...protrusion, protrusion...
・Opening part, 21...Movement groove, η...Coil spring,
B... Housing, 24... Insertion hole, 5... Recess, 3... Screw, n... E plate, J... Insertion hole, 31
...Engagement recess, 32...Engagement protrusion, n...Wall, winnow...Lid, ah...Insertion hole, holder...Opening, 37...
・Protrusion, 38...Engagement groove, 39...Lower plate, cut...
Holding body, 41...head, C...insertion port, 43-...
lower part.

Claims (1)

[Claims] a support tube 5 that is inserted into a mounting member 6 provided in the back seat 1; a housing 9 that is integrated with the support tube 5 and whose lower portion 43 is embedded in the cushion member 3 of the back seat 1; An engaging portion 1 that engages with an engaging recess 8 of a pillar 7 provided in the housing 9
5, and a spring 22 that urges the engaging portion 15 to engage with the engaging recess 8. A recess 25 into which the head 41 of the screw 26 for fixing is sunk is formed at a lower position, an insertion opening 42 for the screw 26 is formed in the center of the recess 25, and the insertion opening 42 is formed in the center of the recess 25.
Insert the screw 26 into the upper plate 2 on the back seat 1 side.
7, and the screw 26 is fixed to the engagement plate 1.
The above-mentioned engagement plate 1 is attached so that it can be fixed with 6 attached.
6 is a headrest holding device in which an insertion hole 30 larger than the head 41 of the screw 26 is formed.