JPH0723308Y2 - Vehicle seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a vehicle seat in which a lower portion of a seat back is a partial back which can be tilted forward, and an accessory compartment is provided on the back of the partial back.

"Prior Art" Conventional vehicle seats include, for example, Figs.
There is something like the one shown in the figure.

That is, the lower portion of the seat back 1 is a partial back 3 which can be tilted forward on the cushion 2, and the accessory compartment 4 is provided on the back of the partial back. The base part of the partial back 3 is the pivot 3a.
Is pivoted to the seat frame by the partial back 3
Magnet locks 5a, 5b for holding the seat upright are provided between the tip of the partial back 3 and the body of the seat back 1.

However, in such conventional vehicle seats, the magnet locks 5a and 5b appear on the outside, which makes them look unattractive and lacks holding power, causing locking failure and rattling. In addition, there is a problem that when the small article storage portion 4 is used, the partial bag 3 is inclined along the surface of the cushion 2 and thus the usability is poor.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a vehicle seat that can reliably hold a partial back and is convenient for storing small items.

[Means for Solving the Problems] The gist of the present invention for achieving such an object is that the lower part of the seat back is a partial back which can be tilted forward, and the accessory compartment is provided on the back of the partial back. In a vehicle seat, a support bracket that supports a base portion of the partial back is fixedly mounted on a seat frame, and upper pins and lower pins that fit into the support bracket are vertically separated from each other at a lower portion of a side surface of the partial back. The support bracket is provided with a vertically elongated guide groove in which the upper pin and the lower pin can be fitted and slidable in the upper part and the lower part when the partial back is upright, and the upper pin is formed. A pin lock portion for elastically and repulsively restraining the upper end of the guide groove is provided, and a passage opening for allowing the upper pin to slip out is provided in the front. Provided in communication with the upper end of the guide groove, when the partial back is tilted from the upright state, the upper pin is pulled out from the passage opening, and the lower pin is lifted to the upper part of the guide groove to engage with the pin lock portion. The vehicle seat is characterized by being configured to be restrained.

"Function" The partial back forms a part of the seat back when standing up, and when there is a seated person, the back is placed on the front of the partial back and seated.

The upper pin and the lower pin are fitted on the upper and lower sides of the guide groove of the support bracket fixed to the seat frame. Restrained by the lock part, the partial back remains upright.

When you want to use the accessory compartment of the partial bag, tilt the lower part of the seat back forward and use the accessory compartment on the back of the partial bag facing up.

When force is applied to tilt the partial back forward, the upper pin comes out of the pin lock part, and then out of the support bracket through the passage opening. Since the upper pin is released, the partial back pivots around the lower pin and tilts forward.

If you only use the accessory case temporarily, you can use it as it is, but to use it in a fixed state, raise the lower pin at the bottom of the guide groove and replace the upper pin with the lower pin on the pin lock part. Combine and restrain.

Since the rear part of the partial back is raised and held, the accessory case is kept horizontal, and the internal parts do not roll down, which is convenient.

When raising the partial back, pull out the lower pin that is restrained by the pin lock portion and lower it while inserting the upper pin that has been exposed to the outside into the guide groove of the support bracket from the passage opening.

When the lower pin reaches the lower end of the guide groove and the upper pin is engaged with the pin lock portion, the partial back is held in the upright state as described above.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention.

As shown in FIG. 3, the vehicle seat 10 includes a cushion 11
And a seat back (12), and a partial back (20) that can be tilted forward is formed separately in the lower part of the seat back (12). A storage portion 14 for the partial back 20 is formed in the seat back body 13. An accessory compartment 21 is provided on the back of the partial bag 20.

As shown in FIGS. 1 and 2, the base portion of the partial bag 20.
22 is supported by the seat frame 15 by a support bracket 30, and at the lower part of the side surface 23 of the partial back 20, an upper pin 24 and a lower pin that fit into the support bracket 30 are provided.
25 and 25 are provided so as to be vertically separated from each other.

The support bracket 30 has a base portion 30a fixed to the seat frame 15 and extends along the side surface 23 of the partial back 20 so that the upper pin 24 and the lower pin 25 can be fitted to the upper and lower portions when the partial back 20 is upright. Sliding vertical guide groove
31 is drilled.

A cushion spring 32 is mounted facing the lower end of the guide groove 31 to receive the lower pin 25, and a lock spring 35 is mounted facing the upper end of the guide groove 31.

The cushion spring 32 has a base end portion 33 fixed to the seat frame 15, and a semicircular receiving portion 34 at the tip end extending so as to face the upper portion of the guide groove 31.

The lock spring 35 has a base end portion 36 fixed to the side surface 23 of the partial back 20, a semicircular restraining end 37 at the tip end extending so as to face the upper end of the guide groove 31, and the restraining end 37 and the upper end of the guide groove 31. Between
A pin lock portion 38 that elastically and repulsively restrains the upper pin 24 or the lower pin 25 is formed.

An extraction guide path 31a is formed forward from the upper end of the guide groove 31,
A passage port 39 is provided at the end of the extraction guide path 31a so as to communicate with the upper end of the guide groove 31 so that a part of the support bracket 30 can be inflated to allow the head of the upper pin 24 to come out.

The upper pin 24 and the lower pin 25 are provided between the tip of the restraining end 37 of the lock spring 35 constituting the pin lock portion 38 and the upper edge of the guide groove 31.
Is opened so that the partial back 20 can pass through elastically, so that when the partial back 20 is tilted from the upright position, the upper pin
24 is pulled out from the passage port 39, the lower pin 25 is lifted to the upper part of the guide groove 31 and engaged with the pin lock portion 38 to be restrained.

Next, the operation will be described.

The seat back body 13 when the partial back 20 is upright
The seat back 12 is accommodated in the storage part 14 and forms a part of the seat back 12. When a seated person is present, the back is placed on the front surface of the partial back 20 to sit down.

The upper pin 24 and the lower pin 25 are fitted to the upper and lower sides of the guide groove 31 of the support bracket 30 fixed to the seat frame 15, and the lower pin 25 is sandwiched between the side walls of the guide groove 31.
The upper pin 24
Is restrained by the pin lock portion 38 between the restraining end 37 of the lock spring 35 and the upper end of the guide groove 31, and the partial back 20 keeps the standing state.

When it is desired to use the accessory compartment 21 of the partial back 20, the lower partial back 20 of the seat back 12 is tilted forward and the accessory compartment 21 at the back of the partial back 20 is used upward.

When the partial back 20 is pushed down against the biasing force of the receiving portion 34 of the cushion spring 32 and a force is applied to tilt it forward, the restraining end 37 of the lock spring 35 is deformed and the upper pin 24 causes the pin lock portion 38 to move. Then, it escapes from the support bracket 30 through the passageway 39 from the extraction guide passage 31a. Since the upper pin 24 is opened, the partial back 20 rotates around the lower pin 25 and tilts forward.

If you only use the accessory case 21 temporarily, you can use it as it is, but to use it in a fixed state, the guide groove
Raise the lower pin 25 that was at the bottom of 31 to raise the upper pin 24
Instead, the lower pin 25 is engaged and constrained by the pin lock portion 38 from between the constraining end 37 of the lock spring 35 and the upper end of the guide groove 31.

As shown in FIG. 3, since the rear part of the partial bag 20 is raised and held, the accessory case 21 is kept horizontal, and the internal parts do not roll down, which is convenient.

When the partial back 20 is erected, the lower pin 25 held by the pin lock portion 38 is pulled out and lowered, and the upper pin 24 that has been exposed to the outside is inserted into the guide groove 31 of the support bracket 30 from the passage opening 39.

The lower pin 25 reaches the lower end of the guide groove 31, and the cushion spring 32
When the upper pin 24 is elastically received by the receiving portion 34 and the upper pin 24 is engaged with the pin lock portion 38, the partial back 20 is held in the upright state as described above.

[Advantage of Invention] According to the vehicle seat according to the present invention, the support bracket fixed to the seat frame holds the partial back in the upright state, and when it is tilted forward, the partial back is held horizontally. It does not appear, it looks good, it has sufficient holding power, it does not cause lock failure or rattling, and it is horizontal when using the accessory case,
Easy to use.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
The figure is a partial perspective view of the base of the partial bag and the vicinity of the support bracket, FIG. 2 is a side view of the same, and FIG. 3 is a perspective view of the vehicle seat with the partial bag folded forward, FIGS. 4 and 5. Fig. 4 shows a conventional example, Fig. 4 is a perspective view of a vehicle seat in which a partial back is tilted forward, and Fig. 5 is a view taken in the direction of arrow V in Fig. 4. 10 …… Vehicle seat, 11 …… Cushion 12 …… Seat back, 20 …… Partial back 21 …… Small compartment, 23 …… Side 24 …… Upper pin, 25 …… Lower pin 30 …… Support bracket, 31… … Guide groove 32 …… Cushion spring, 34 …… Reception part 35 …… Lock spring, 37 …… Restricted end 38 …… Pin lock part, 39 …… Passage port

Claims (1)

[Scope of utility model registration request] 1. A vehicle seat in which a lower portion of a seat back is a partial back that can be tilted forward, and an accessory compartment is provided on a back portion of the partial back. A support bracket for supporting a base portion of the partial back is fixed to a seat frame. The upper pin and the lower pin that fit together with the support bracket are provided at the lower part of the side surface of the partial back so as to be vertically spaced apart from each other, and the support bracket has the above-mentioned structure when the partial back is erected. A vertically elongated guide groove is formed so that the upper pin and the lower pin can fit in the upper and lower parts and is slidable, and a pin lock portion that releasably and elastically restrains the upper pin is provided at the upper end of the guide groove. And a passage opening that allows the upper pin to come out of the guide groove is provided in communication with the upper end portion of the guide groove. A vehicle seat characterized in that the upper pin is pulled out from the passage port, and the lower pin is lifted to an upper portion of the guide groove to be engaged with and restrained by the pin lock portion.