JPH0140758Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial field of application) This invention does not damage each sheet member,
The present invention also relates to a locking device for a foldable seat that can reliably hold a seat back in a fixed position without causing it to rattle.

(Prior Art) The simplest structure of a folding seat, which consists of raising the seat cushion forward and then folding the seat bag forward, is shown in FIGS. 4A and 4B. In this example, the seat cushion A is pivoted forward so that it can stand up, and the seat back B is pivoted forward so that it can be folded down, and when the seat bag B is folded down, its front surface is directly supported on the floor C. I try to let them do it. Therefore, for this structure,
This has the disadvantage that the seat back B moves up and down as the vehicle body vibrates.

For this reason, a locking mechanism has been proposed in which both seat members are connected by a band member D, as shown in FIG. In other words, the top surface of the seat bag B may come into contact with the bottom surface of the seat cushion A, and this area may rub and wrinkle, or when an object is placed on the seat bag B, the seat bag B sinks and its front surface touches the floor C. It also does not solve the problem of damage caused by sand particles on the surface.

(Purpose of the invention) In view of these points, the present invention is designed to ensure that the seat back does not move up and down due to vibrations of the vehicle body, is securely held in a fixed position, and that each seat member is not damaged due to rubbing. The purpose of this system is to provide a new locking mechanism that does not have any locking mechanism, and is characterized by a foldable seat in which the seat cushion is raised forward and then the seatback is folded forward. A hook-shaped member is provided at the bottom of the seat cushion, a locking member that is locked to the hook-shaped member is provided at the back of the seat bag, and the locking member is rotated by an arm fixed to the upper part of the seat bag frame. The locking member is movably supported and is biased toward the back side of the seatback by a spring member, so that the seatback is held in a position above the floor when the hook-shaped member and the locking member are engaged with each other. It is characterized by what is done.

(Example) The present invention will be described in detail below based on the illustrated example.

1 to 3 show a device according to an embodiment of the present invention, in which reference numeral 1 is a seat cushion, whose front lower part is pivoted by a rotating hinge 2 so as to be able to stand upside down. A pair of hooks 3, 3' as hook-like members are fixed to the center of the bottom surface 1a in an inverted state facing upward. This hook 3,
3' is when the seat cushion 1 is under normal conditions, that is,
A recess 4 is provided in the bottom of the seat cushion 1 so as not to contact the floor 5 in a non-inverted state,
It is installed within this recess 4.

Reference numeral 6 designates a seed bag that is paired with the seat cushion 1, and its lower part is similarly supported by a rotary hinge 7 so that it can be inverted, and its upper end surface 6a touches the bottom surface of the seat cushion 1 in the inverted state. 1a
It is configured so as not to come into contact with the rear part 6.
A U-shaped rod 10 as a locking member is rotatably attached to the upper part 8a of the seat back frame 8 via an arm 9 fixed to the upper part 8a of the seat back frame 8.
The rod 10 also serves as a handle, and is set to a length that allows the seat bag 6 to be lifted off the floor 5 when the horizontal bar 10a is hooked to the hooks 3 and 3', and is also equipped with a return spring. 11, the seat bag is always urged toward the back side 6b.

Therefore, the user changes from the state shown in Figure 3 A,
First, the seat cushion 1 is rotated forward and turned upside down, and then the seat back 6 is similarly laid down forward, and the horizontal bar 10a of the rod 10 is moved to the spring 11.
The bottom part 1 of the seat cushion 1 resists the urging force of
When the hooks 3 and 3' at position a are engaged, the seat bag 6 is locked in a predetermined positional relationship with respect to the seat cushion 1, with the seat bag 6 slightly floating above the floor 5. At this time, the rod 10 of the seat back 6 is always urged by the spring 11 toward the back side 6b of the seat back, and is also urged in the direction of being locked inside the hooks 3, 3, so that no rattling occurs. Nor.

Therefore, even if desired luggage is placed on the back surface of the seat bag 6, the seat bag 6 will not sink, and the upper end 6a of the seat bag 6 will remain at a predetermined distance from the bottom surface 1a of the seat cushion 1. However, since the seat bag 6 itself is floating from the floor 5, the seat members 1, 6, etc. do not rub against each other, and this kind of damage can be prevented as much as possible.

(Effects of the invention) As described above, according to the invention, a hook-like member is provided on the bottom surface of the seat cushion, a locking member that is engaged with the hook-like member is provided on the back surface of the seat bag, and the The locking member is rotatably supported by an arm fixed to the upper part of the seat bag frame, and the locking member is biased toward the back side of the seat bag by a spring material, so that the hook-shaped member and the locking member are connected to each other. When the seat bag is in the locked state, the seat bag is held in a position above the floor, so when the seat bag is tilted toward the seat cushion, the seat bag itself is lifted off the floor and fixed to the seat cushion. The seat back is not damaged by sand particles on the floor surface, and damage to each member of the seat can be prevented as much as possible.

Further, according to the present invention, since the locking member of the seat bag is biased in the locking direction, the engagement state between the seat bag and the seat cushion can be maintained elastically, and the seat bag can be held at a fixed position with respect to the seat cushion. It can be maintained reliably.

[Brief explanation of the drawing]

1 to 3 show a device according to an embodiment of the present invention, in which FIG. 1 is a perspective view of the entire device, FIG. 2 is a side view of its main parts, and FIG. 4A and 4B are explanatory side views showing the usage status of the seat to which this device is attached, respectively. Figures 4A and 4B are explanatory diagrams showing the usage status of the seat without a locking mechanism, and Figure 5 is an explanatory diagram showing the conventional example. be. In the figure, reference numeral 1 indicates a seat cushion, 2 and 7 are rotating hinges, 3 and 3' are hooks, 5 is a floor, 6 is a seat cushion, 10 is a rod, and 11 is a spring.

Claims (1)

[Scope of utility model registration request] In a foldable seat in which the seat cushion is raised forward and then the seat bag is folded forward, a hook-like member is provided on the bottom of the seat cushion, and a hook-like member is provided on the back surface of the seat back that engages with the hook-like member. A locking member is provided, and the locking member is rotatably supported by an arm fixed to the upper part of the seatback frame, and the locking member is biased toward the back side of the seatback by a spring member. A locking device for a foldable seat, characterized in that the seat bag is held in a position above the floor when the hook-shaped member and the locking member are engaged with each other.