JPS6251607B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a folding seat that can be folded close to a mounting elevation.

As a conventional folding seat, for example, the first
There are some as shown in Fig. 2 and Fig. 2.

That is, the seat body 1 is pivotally attached to the vertical wall A via the frame 11 with a hinge 12, and is configured to be able to rotate downward and follow the mounting elevation, and the tip of the seat body 1 is not used. At times, the seat body 1 is held horizontally and supported by the legs 2. The legs 2 are formed into a substantially U-shape, and their upper ends can be inserted into and removed from fitting holes 13 provided at the tip of the seat body 1, and are inserted when the seat body 1 is in use, and the lower horizontal portions 21 are fixed to the bottom wall B. It can be detached from the holder 22 and is inserted into the seat body 1 when it is in use. When folding the seat body 1, the legs 2 are removed from the fitting holes 13 and the holders 22, and the seat body 1 is rotated downward so that it comes into close contact with the vertical wall A. It was meant to be stored.

However, in the above-mentioned conventional folding seat, the legs 2 are detachable and require a separate storage space, and when in use, it takes time to take out the legs 2 and assemble them to support the seat body 1. It is time consuming and troublesome. Further, since the holder 22 is fixed to the bottom wall B and its position is below the tip of the seat body 1, the seat body 1
When it is folded, the holder 22 protrudes onto the passageway, which is dangerous as it may catch your foot.

An object of the present invention is to provide a folding sheet that solves the above problems.

In order to achieve this objective, in the present invention,
A seat body whose base end is swingably pivoted to the vertical wall and from which engagement pins protrude on the left and right sides of the distal end, and legs which are swingably pivoted to the lower end of the vertical wall or the bottom wall. ,
By comprising a holding mechanism provided on the leg portion and having an engagement groove consisting of a guide portion and a fitting portion that engage and disengage from the pin to hold the seat body in the use position and storage position, respectively, it is possible to There is no looseness during storage and no time is required for assembly.

The present invention will be described below based on embodiments shown in the drawings.

3 to 7 show one embodiment of the present invention. The seat body 3 consists of a base 31 and a cushion 34 fixed to the base 31 with bands 32, 32 and buttons 33a, 33b, and a base end 39 of the base 31 is pivoted to the vertical wall A by a hinge 35. ,
The front end portion 36 is allowed to swing downward. Engagement pins 37, 37 having enlarged heads are protruded from both outer sides of the front end portion 36 of the base 31 of the seat body 3.

The legs 4 have a pair of left and right support legs 41, 41 arranged in parallel with substantially the same inner distance S, which is slightly larger than the outer width of the front end portion 36 of the seat body 3, and a connecting member 42,
42 are connected like a ladder, and the lower end portion 43 is vertically tilted so as to be swingable from the angle shown by the dashed line in FIG. It is pivotally attached to a mounting portion of the bottom wall B at a position close to the lower end A1 of the wall A by hinges 44, 44. The mounting portion to be pivoted may be the vertical wall A instead of the bottom wall B.

The holding mechanism consists of a first holding part that holds the use position and a second holding part that holds the stored position.
Holding parts 5, 5 and second holding parts 6, 6 are provided in the intermediate part. The first holding portion 5 is for holding the seat body 3 by engaging with the engagement pin 37 in a position where the legs 4 are tilted forward when the seat body 3 is in a substantially horizontal use position. As shown in FIG. 7, an internal space 51 and an opening 52 are formed inside the supporting leg 41 and the supporting leg is fixed in a bag shape, and a guide portion 54 and a supporting leg close to the trajectory of the supporting leg 41 in the forward tilting direction are attached to the inner plate 53. An engagement groove 56 is formed with a fitting portion 55 that faces substantially in the axial direction of 41. The second holding part 6 is the first holding part 5
Similarly, it is fixed to the inside of the support leg 41 in a bag-like manner, and the engagement pin 37 of the seat body 3 is attached to the inner plate 61 of the seat body 3 when the leg 4, that is, the support leg 41 is tilted forward.
As the guide portion 62 facing the movement trajectory direction and the support leg 41 move from being tilted forward to standing upright, an engagement groove 64 is formed that includes an insertion portion 63 into which the engagement pin 37 is inserted due to a change in relative position. If the direction of the guide portion 62 is determined appropriately, the insertion portion 63 is not necessary. Note that 38 is a notch for avoiding interference with the upper connecting member 42 when the seat body 3 is folded. Alternatively, the engagement groove may be directly carved into the support leg 41 to serve as a holding portion.

When using the seat, keep the seat body 3 approximately horizontal by swinging the tip end 36 of the seat body 3 upward, and tilt the legs 4 forward so that the first holding part 5 engages the groove 56.
If the engagement pin 37 of the seat body 3 is engaged with the guide part 54 of the seat body 3 and pushed in, and then the tip end 36 of the seat body 3 is slightly lowered, the engagement pin 37 will fit into the insertion part 55 and the seat will be in the use position. Become. When seated on the seat body 3, the fitting portion 55 shares the load via the engagement pin 37. Even if only the tip end portion 36 of the seat body 3 is lifted upward, it will not come off easily because the movement locus of the engagement pin 37 and the direction of the guide portion 54 are different, and the relationship between the first holding portion 5 and the engagement pin 37 will not be easily removed. To disengage, both must be moved relative to each other, so even if the seat is installed in a vehicle or a ship, the seat body 3 is unlikely to fold naturally due to vibrations or the like. When holding the seat in the storage position, the seat main body 3 and the legs 4 are moved relatively to remove the engagement pin 37 from the first holding portion 5, so that the seat main body 3 can swing downward. When the seat body 3 is swung downward until the legs 4 are tilted forward, the engagement pin 37 reaches the second holding portion 6. Second holding part 6
Since the guide portion 62 of the engagement groove 64 faces the direction of the movement locus of the engagement pin 37, the engagement pin 37 is guided by the guide portion 62 and inserted. In this state leg 4
When the pin 37 is made to stand upright, the engagement pin 37 fits into the fitting portion 63 due to a change in relative position. When the legs 4 are tilted back from the upright position and placed against the vertical wall A, the seat stands still and the seat is in the folded storage position. If the forward inclination angle of the leg 4 when the engagement pin 37 is pushed in is made larger than the backward inclination angle in the resting state, the engagement pin 37 can be maintained in the fitted state in the insertion part 63. Even if you try to pull up the seat body 3 in this state, the engagement pin 37
It cannot be pulled up because it is inserted into the insertion part 63. Further, even without the fitting portion 63, the engagement pin 37 is difficult to come out from the direction of the guide portion 62.
When pulling up the seat body 3 to a substantially horizontal use position, tilt the legs 4 forward until the direction of the guide portion 62 matches the locus of movement of the engagement pin 37, and then swing the seat body 3. 2 Holding part 6 and engagement pin 37
The seat body 3 may be pulled up after disengaging from the seat body 3.

According to the folding seat according to the present invention, since the seat body and the legs are pivotally connected to each other, there is no need to remove them and store them separately. 1st
The holding part and the second holding part hold the seat part securely so that it does not move inadvertently in the use position and storage position, and folding and assembly operations can be performed by aligning the seat part and the legs and swinging. It's easy because you only need to do it. It is safe because there is nothing protruding into the passageway on the floor.

[Brief explanation of the drawing]

1 and 2 show a conventional example, FIG. 1 is a perspective view, FIG. 2 is a side view, and FIGS. 3 to 7 show an embodiment of the present invention, and FIG. 3 is a side view. , FIG. 4 is an exploded perspective view, FIG. 5 is a partial front view of the leg seen from the inside, FIG. 6 is a rear view, and FIG. 7 is a plan view. A... Vertical wall, 3... Seat body, 37... Engagement pin, 4... Leg, 5... First holding part, 6... Second
Holding part, B...Bottom wall.

Claims (1)

[Scope of Claims] 1. A seat body whose base end is pivotally connected to a vertical wall so as to be able to swing forward and downward, and an engagement pin is provided on the outside of the front end, and a lower end of the vertical wall or A lower end portion is pivotally attached to a portion of the bottom wall close to the lower end portion, and upper portions of the support legs on both sides are provided on legs that can swing with the seat body in between, and upper ends of the support legs on both sides of the legs. , a first holding portion that has an engagement groove in which the engagement pin engages and disengages, and that includes a guide portion and a fitting portion, and that restrains the engagement pin when the seat body is in a substantially horizontal use position; and the leg. the seat body and the legs are folded along a vertical wall; a holding mechanism comprising a second holding part that restrains the engagement pin when in position.