JPH0355453Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a seat with an auxiliary chair that is particularly convenient for automobiles.

[Conventional technology]

BACKGROUND ART Conventionally, seats in automobiles, especially buses, vans, etc., are often equipped with foldable auxiliary chairs attached to the sides.

This type of seat includes, for example, the first
As shown in Figure 0, the backrest part 11A and the seat part 11B
The auxiliary chair 12 assembled on the side of the main seat 11 consists of a backrest part 12A and a seat part 12B, and when not in use, the backrest part 1 of the auxiliary chair 12
2A functions as an armrest for the main seat 11 from the forward facing state shown by the solid line to the sideways state shown by the dotted line, and the seat 12B functions as an armrest for the main seat 1 as shown by the dotted line.
1 (for example, Japanese Utility Model Publication No. 38-13016, Japanese Utility Model Publication No. 40-48133).

[Problems to be Solved by the Invention] However, in the conventional configuration described above, when the backrest portion 12A of the auxiliary chair 12 is used as an armrest, the upper edge of the armrest is too high, making it difficult to use. However, if the upper edge of the armrest is lowered, the backrest 12A becomes too low, making it difficult to use. Furthermore, if the seat 12B of the auxiliary chair 12 is stored below the seat 11B of the main seat 11,
Another problem is that the space below the seat 11B is occupied by the seat 12B and cannot be used effectively.

[Means to solve the problem]

The present invention, as a means to solve the above-mentioned conventional problems, has a rotating shaft on the side edge of the backrest part 1A of the main seat 1, which consists of a backrest part 1A and a seat part 1B, so that it can be tilted forward in a horizontal state or in an upright state. A support post 3 is attached so as to be rotatable about 4, and the backrest portion 2A of the auxiliary chair 2 is rotatably screwed onto the support post 3 so as to be in a sideways state or a forward facing state.
The seat 2B of the auxiliary chair 2 is rotatably screwed to the side edge of the seat 1B of the main seat 1 so that it can be placed in a hanging or horizontal position, and when the auxiliary chair 2 is not in use, the auxiliary chair 2 The backrest portion 2A of the main seat 1 is in a horizontal state and tilted forward via the pillar 3 to function as an armrest, and the seat portion 2B is suspended from the side edge of the seat portion 1B of the main seat 1. When the auxiliary chair 2 is used, the backrest 2A of the auxiliary chair 2 is in an upright and forward facing state via the support 3, and the seat 2B is in a horizontal state, providing a seat with an auxiliary chair. It is.

〔Example〕

The present invention will be explained with reference to an embodiment shown in FIGS. 1 to 9. The main seat 1 is composed of a backrest portion 1A and a seat portion 1B. A rotation shaft 4 is projected from the side surface of the backrest portion 1A at a position higher than the upper surface of the seat portion 1B, and the support column 3 is attached to be rotatable back and forth via the rotation shaft 4. The inner edge of the backrest portion 2A of the auxiliary chair 2 is attached to the support column 3 via a hinge 3A. Thus, the backrest 2A of the auxiliary chair 2 is located on the side of the main seat 1 as shown in FIGS. 2, 3, and 4.
The main seat 1 can be opened and closed in a range from a forward-facing position opened laterally as shown by the dotted line in the figure to a sideways position closed along the seat portion 1B of the main seat 1 as shown by the solid line in FIGS. 1 and 4, and It is mounted so as to be rotatable about a rotation shaft 4 in a range from a horizontal state shown by the solid line in FIG. 5 to an upright state shown by the dotted line in FIG. That is, the support column 3 rotates the backrest portion 2A of the auxiliary chair 2 in the range from the solid line position (forward tilted horizontal state) to the dotted line position (upright state) in FIG. 5, but as shown in FIGS. 6 and 7. The pivot shaft 4 of the support column 3 is pivotally supported by a pair of bearing rings 7, 7 on both side walls of a bearing 6 which is attached to the frame 5 of the backrest portion 1A of the main seat 1 by welding, bolts, etc. Then, the arm rod 4A is held out between the bearing rings 7, 7 on the rotation shaft 4, and the horizontal wall 6A and the vertical wall 6B of the bearing 6 each have an annular shape that receives and holds the arm rod 4A of the rotation shaft 4. The leaf springs 8 and 9 are held out. Thus, when the backrest 2A of the auxiliary chair 2 is in the solid line position in FIG. At the dotted line position, armrest 4
A is held between the leaf springs 9 of the vertical wall 6B as shown by dotted lines in FIG. The rotation of the backrest portion 2A is performed with such force that the arm rod 4A of the rotation shaft 4 can move in and out of the leaf springs 8 and 9 against the elasticity of the leaf springs 8 and 9. It is possible to hold the pivot shaft 4 in two pivot positions.

On the other hand, as shown in Figures 1A and B and Figure 2,
The inner edge of the frame 2C of the seat 2B of the auxiliary chair 2 is attached to the lower side edge of the frame 1C of the seat 1B of the main seat 1 via a pair of hinges 10. When in use, the seat 2B of the auxiliary chair 2, which is suspended from the side edge of the main seat 1, is rotated upward and pulled out to a substantially horizontal position, and the seat 1B of the main seat 1 is rotated upward, as shown in FIG. The bottom surface of the frame body 1C is supported by a support 16 rotatably attached to the bottom surface of the frame body 1C.

To fix the backrest 2A of the auxiliary chair 2 at the solid line position in FIG. 5, as shown in FIG. 11 is engaged with the protrusion 13 on the back of the backrest portion 1A of the main seat 1. Further, in order to fix the backrest portion 2A at the dotted line position in FIG. 5, as shown in FIG.
This is done by engaging the hook 11 of A with the protrusion 14 on the back surface of the seat portion 1B of the main seat 1.

In the above configuration, from an intermediate state in which the auxiliary chair is not in use, as shown in FIG. 1B and the solid line in FIG. The auxiliary chair 2 is formed as shown in FIG. 3 by rotating the portion 2B upward and pulling it out to a horizontal state, and supporting the bottom surface with the support 16. In this case, the backrest portion 2
The user's weight exerted on A is due to the fact that the arm rod 4A of the rotation shaft 4 is received by the vertical wall 6B of the bearing 6 via the leaf spring 9, and the lower surface of the backrest 2A is supported by the seat 2B. It is supported by contacting the upper surface.

Next, as shown by the dotted line in FIG.
The seat 2B is rotated and removed from the seat 2B of the auxiliary chair 2.Then, the seat 2B is rotated downward about the hinge 10 and stored by hanging over the edge of the seat 1B of the main seat 1. The backrest part 2A of 2 is the main seat 1
The backrest portion 2A functions as a side rest in the intermediate state in which it is closed along the seat portion 1B of the seat 1B and placed in the horizontal position, and as described above, in the positions shown by the dotted lines in FIGS. 1B and 5.

Further, when the chair is rotated forward from the dotted line position shown in FIG. 5 to the solid line position in FIG. 5, the backrest 2A of the auxiliary chair 2 functions as an armrest. At this time, the height of the armrest is determined by the position of the pivot shaft 4 on the side surface of the backrest portion 1A of the main seat 1.

[Effect]

Since the present invention has the above-mentioned configuration, when the auxiliary chair 2 is in use, the backrest 2A of the auxiliary chair 2 is in an upright position and opened laterally to face forward, and the seat 2B of the auxiliary chair 2 is connected to the seat of the main seat 1. It is pulled out horizontally to the side of 1B.

When the auxiliary chair 2 is not in use, the backrest 2A of the auxiliary chair 2 is in a closed horizontal position along the seat 1B of the main seat 1, and the seat 2B of the auxiliary chair 2 is in a sideways position along the seat 1B of the main seat 1.
However, when the backrest 2A of the auxiliary chair 2 is in the upright state in the sideways state, that is, in the intermediate state, the backrest 2
A functions as a side rest of the main seat 1.

When the backrest portion 2A is in a horizontal position, the support column 3
When the backrest part 2A is rotated forward about the rotation axis 4 through the horizontal axis, the backrest part 2A is rotated forward about the rotation axis 4.
functions as an armrest.

[Effect of idea]

In this way, in the present invention, the backrest part of the auxiliary chair can be used not only as the original backrest part but also as a side rest of the main seat and an armrest, giving the backrest part a multipurpose use. Furthermore, even if the backrest of the auxiliary chair is made high enough for the user to comfortably lean back, if it is used as an armrest, the height of the backrest will depend on the position of the rotation axis on the side of the main seat backrest. It is set at a height that is easy to use. In addition, when the seat of the auxiliary chair is not in use, it is stored in a hanging state on the lower edge of the seat of the main seat, so the entire space under the seat is not occupied by the seat of the auxiliary chair and can be stored in the main seat. Units such as coolers and heaters can be installed under the seat, allowing for effective use of space.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1A is a front view of the auxiliary chair not being used, FIG. 1B is a front view of the intermediate state, FIG. 2 is a front view of the auxiliary chair being used, and FIG.
The figure is a perspective view of the auxiliary chair in use, Figure 4 is a plan view, Figure 5 is a side view showing the operation of the backrest of the auxiliary chair, Figure 6 is a perspective view of the bearing part, and Figure 7 is an enlarged view of the bearing part. 8 is a back perspective view of the main seat, FIG. 9 is a lower perspective view of the main seat, and FIG. 10 is a front view of the conventional example. In the diagram, 1...main seat, 1A...backrest, 1
B... Seat, 2... Auxiliary chair, 2A... Backrest, 2B... Seat, 3... Support, 4... Rotation axis.

Claims (1)

[Scope of claims for utility model registration] Main seat 1 consisting of a backrest portion 1A and a seat portion 1B
A column 3 is attached to the side edge of the backrest portion 1A of the auxiliary chair 2 so as to be rotatable about a rotation axis 4 so as to be in a horizontal state or in an upright state. The seat 2B of the auxiliary chair 2 is rotatably screwed to the side edge of the seat 1B of the main seat 1 so as to be in a hanging state or a horizontal state. When the auxiliary chair 2 is not in use, the auxiliary chair 2
The backrest part 2A of the main seat 1 is in a sideways state and tilted forward via the pillar 3 to function as an armrest, and the seat part 2B is in a state of hanging down from the side edge of the seat part 1B of the main seat 1. A seat with an auxiliary chair, characterized in that when the chair 2 is in use, the backrest 2A of the auxiliary chair 2 is in an upright and forward facing state via the pillar 3, and the seat 2B is in a horizontal state. .