JPH0415080Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a seat with side support in a vehicle used in the field of seats for automobiles such as passenger cars and buses, and vehicles such as trains.

BACKGROUND TECHNOLOGY In recent years, side supports have been installed on both sides of the seat back of various types of vehicles in order to prevent the seatback from rolling or tilting when the vehicle is moving or when the vehicle is turning. It was getting worse.

Problems that the invention aims to solve: Conventional side supports are fixed to the sides of the backrest, so if the degree of protrusion of the side supports is increased to effectively prevent the seated person from rolling, the backrest The height difference between the seat and the seat becomes large, which impedes movement when sitting or leaving the seat.Especially in the case of automobiles, the area of the opening for getting in and out of the vehicle is restricted, and this becomes an obstacle to getting in and out of the seat.
On the other hand, if you make the protruding part of the side support smaller,
There was a problem in that it was not very effective in preventing the seated occupants from rolling when they turned a curve while driving.

In this invention, the side support is configured to be able to move left and right when taking a seat or leaving the seat, and to be fixed while seated, thereby eliminating hindrances when taking a seat or taking a seat or getting on and off the seat, as well as preventing the seated person from rolling when the vehicle is moving. This idea was designed to increase its effectiveness.

Means for Solving the Problems The present invention has vertical plates 2, 2 erected on the left and right ends 1a of the horizontal plate 1, and the rear edge 1b of 1a, and an arch-shaped frame 3 on the top of the vertical plates 2, 2. The left and right legs 3a, 3a are fixed, and front support plates 4, 4 are provided on the upper front surfaces of the vertical plates 2, 2 to protrude toward the left and right outer sides, and the front support plates 4,
4 and the left and right ends 1a, 1a, 4a, 4a of the horizontal plate 1
Shafts 6, 6 to which arm plates 5, 5 are fixed are rotatably supported, gears 7, 7 are pivotally attached to the lower ends of the shafts 6, 6, and upper front and rear ends of the arm plates 5, 5 are rotatably supported. One end 8a, 8a, 9a, 9a of the springs 8, 8, 9, 9 is locked to the other end 8b, 8 of one spring 8, 8.
b was engaged with pins 10, 10 protruding from the front support plates 4, 4, and the knob 12 was attached to rear support plates 11, 11, which were provided to protrude rearward from the upper rear surfaces of the vertical plates 2, 2. An adjustment rod 13 is rotatably installed, and one end of the adjustment rod 13 is provided with a normal thread groove 14, and the other end is provided with a reverse thread groove 15. Sliders 16, 16 are slidably screwed into the grooves 15, and the other ends 9b, 9b of the springs 9, 9 are engaged with the sliders 16, 16. L-shaped hooks 18, 18 having claws 18a, 18a and weights 17, 17 fixed to the other are rotatably supported by shafts 19, 19, and the claws 18a, 18a face the gears 7, 7. Let me,
Weights 17, 17 and pins 20, 2 installed vertically on the horizontal plate 1
Spring 21, 21 is stretched between the hooks 18, 18, and stoppers 22, 22 are erected on the horizontal plate 1 to restrict the rotation of the hooks 18, 18.

In the figure, 24 is a backrest, 25 is a seat, and 26 is a cushion spring installed between the left and right vertical plates 2, 2.

Function Since the present invention is constructed as described above, the knob 12
When you turn the adjusting rod 13 by turning it clockwise,
As the normal thread groove 14 and the reverse thread groove 15, which are formed on both ends of the adjustment rod 13, rotate, the sliders 16, 16, which are screwed together, move outward from each other.
The springs 9,9 are relaxed, and when the knob 12 is turned counterclockwise, the sliders 16,16 move inwardly relative to each other, so the springs 9,9 are tensioned.
Each time, the arm plates 5, 5 are rotated in the left-right direction around the shafts 6, 6 by the elasticity of the springs 8, 8 or against the elasticity, so that the arm plates 5, 5 are rotated by rotating the knob 12. The side supports 23, 23 formed on the outside of the seat 5 are rotated left and right to narrow or widen the mutual width l of the side supports to adjust to the lean or obese body shape of the seated person. In this state, the claws 18a, 18a of the hooks 18, 18 are connected to the gear 7,
7, the arm plates 5, 5, that is, the side supports 23, 23 are not in a positional relationship that meshes with the shafts 6, 7.
It is in a state where it can freely rotate around center point 6, and is maintained at the initially adjusted position by the elasticity of springs 8, 9, 8, and 9. When the vehicle is stopped or moving straight, the hooks 18, 18 are connected to the springs 21,
21 and stoppers 22, 22, and the claws 18a, 18a are not engaged with the gears 7, 7, so the arm plates 5, 5 and the side supports 23, 23 can freely move left and right to support the seated person. can move freely. When the vehicle curves to the left,
The weight 17 on the right in FIG. 4 tries to move to the right against the elasticity of the spring 21 due to the centrifugal force in the right lateral direction (arrow), and as a result, the hook 18 moves toward the pin 1.
9, the claw portion 18a meshes with the gear 7, preventing rotation of the shaft 6, and accordingly, rotation of the arm plate 5 and side support 23 as well. At this time, the seated person also tries to lean to the right side due to centrifugal force, but since the side supports are fixed, the seated person's body is only pressed against the side support 23 and does not tilt, but the seated person's body is supported and remains upright. It is maintained.

During this time, a centrifugal force is generated in the right lateral direction (arrow) on the other (left) weight 17, and the hook 18 attempts to rotate counterclockwise around the shaft 19, but this is blocked by the stopper 22, and the claw 18a does not mesh with gear 7, and shaft 19, arm plate 5, and side support 23 can rotate freely.

Next, when the vehicle curves to the right, the left weight 17 in FIG. 5 tries to move to the left against the elasticity of the spring 21 due to the centrifugal force in the left lateral direction (arrow). Accordingly, the hook 18 rotates clockwise around the pin 19, so that the claw portion 18a is connected to the gear 7.
The shaft 6, the arm plate 5, and the side support 23 are also prevented from rotating. At this time, the seated person also tries to lean to the left side due to centrifugal force, but since the side supports are fixed, the seated person's body is only pressed against the side support 23 and does not lean, but the seated person's body is supported and kept upright. is maintained.

During this time, a centrifugal force is generated in the left lateral direction (arrow) on the other (right) weight 17, and the hook 18 attempts to rotate clockwise around the shaft 19, but this is blocked by the stopper 22 and the claw 18a does not mesh with gear 7, and shaft 6, arm plate 5, and side support 23 can rotate freely.

When the vehicle returns to running straight from a curve to the left or right, the centrifugal force on the weights 17, 17 disappears in either case, the weights return to their old positions due to the elasticity of the springs 21, 21, and the hooks 18, 18 is pin 1
It rotates about 9 and 19 in the opposite direction to the rotation when the vehicle curves, and the rotation is prevented by the stoppers 22 and 22 and returns to the old position.

Effects Therefore, according to the present invention, when the vehicle is stopped or moving straight, the side supports can rotate freely, so in the case of a passenger car, the side supports can be rotated slightly outward to prevent them from protruding from the backrest. Since the ratio can be reduced, it does not get in the way when getting on and off, and in the case of buses and trains, the same rotating operation prevents it from getting in the way when taking and leaving the seat. The side supports rotate, so they do not become an obstacle. When a vehicle such as a passenger car, bus, or train curves to the left or right, the side support on the side of the curve automatically becomes fixed, so the seated person's body is supported by the side support and the body is not tilted. There is no need to use your hands to support your body against tilting. Further, since the side support is automatically fixed, no special operation is required. Moreover, the distance between the left and right side supports can be adjusted according to the body shape of the person seated, such as thin or obese, so it can be used to adapt to a variety of body types, and the adjustment can be done by turning a knob. It is also easy to operate.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention. Figure 1 is a perspective view of the invention seen from the front, Figure 2 is a perspective view of the mechanism of the invention seat seen from the rear, and the imaginary line is the backrest and left side. Showing side support. Figure 3 is a plan view of the proposed seat mechanism, with imaginary lines showing the backrest and left side support. FIG. 4 is a plan view showing the operation of the right hook when the vehicle curves to the left, and FIG. 5 is a plan view showing the operation of the left hook when the vehicle curves to the right. Code, 1... Horizontal plate, 1a, 1a... End, 1b
... Trailing edge, 2 ... Vertical plate, 3 ... Frame, 3a ... Leg, 4 ... Front support plate, 4a ... End, 5 ... Arm plate,
6...shaft, 7...gear, 8...spring, 8a
...One end, 8b...Other end, 9...Spring, 9
a...One end, 9b...Other end, 10...Pin, 11
... Rear support plate, 12 ... Knob, 13 ... Adjustment rod, 1
4... Right thread groove, 15... Reverse thread groove, 16... Slider, 17... Weight, 18... Hook, 18
a...Claw portion, 19...Shaft, 20...Pin, 21...
...Spring, 22...Stopper, 23...Side support, 24...Backrest, 25...Seat,
26...Cushion spring, l...Width (between side supports).

Claims (1)

[Scope of utility model registration request] Vertical plates 2, 2 are erected on the rear edges 1b of the left and right ends 1a, 1a of the horizontal plates 1, and left and right legs 3a, 3a of an arch-shaped frame 3 are fixed to the tops of the vertical plates 2, 2. ,
Front support plates 4, 4 are provided on the upper front surfaces of the vertical plates 2, 2 to protrude toward the left and right outer sides, and the left and right ends 1a, 1a, 4a, 4a of the front support plates 4, 4 and the horizontal plate 1 are provided. rotatably supports shafts 6, 6 to which arm plates 5, 5 are fixed,
Gears 7, 7 are pivotally attached to the lower ends of the shafts 6, 6, and springs 8, 8 are attached to the front and rear ends of the upper parts of the arm plates 5, 5.
Lock one end 8a, 8a, 9a, 9a of 9, 9,
The other ends 8b, 8b of one of the springs 8, 8 are engaged with pins 10, 10 protruding from the front support plates 4, 4, and the rear supports are provided protruding rearward from the upper rear surfaces of the vertical plates 2, 2. Adjustment rod 13 with knob 12 attached to plates 11, 11
The adjustment rod 13 has a normal thread groove 14 at one end and a reverse thread groove 1 at the other end.
5 are respectively carved, sliders 16, 16 are slidably screwed into the normal thread groove 14 and reverse thread groove 15, and the other ends 9b, 9b of the springs 9, 9 are locked to the sliders 16, 16. Furthermore, L-shaped hooks 18, 1 are provided on both sides of the horizontal plate 1, with claws 18a, 18a formed on one side and weights 17, 17 fixed on the other side.
8 is rotatably supported by shafts 19, 19, with claws 18a, 18a facing gears 7, 7, and weight 1
7, 17 and pins 20, 20 provided upright on the horizontal plate 1, with springs 21, 21 tensioned thereon, and a stopper 2 for restricting the rotation of the hooks 18, 18 on the horizontal plate 1.
A vehicle seat having movable side supports, characterized in that side supports 2 and 22 are erected.