JPH03124Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to an improvement of a locking device in the bed of a large truck or the like.

(Description of Prior Art) As shown in FIG. 4, this type of bed has a U-shaped engagement member 11 protruding from the top surface of a support base 10 that serves as an article storage section A, and this engagement member 11 engages. A substantially U-shaped leaf spring 21 is protruded from the back surface of the mating bed 20, and when this leaf spring 21 engages with the engaging member 11 of the support base 10, the bed 20 is attached to the support base 10. Fixed. And bed 20
When not in use, it is folded as shown on a fixed bed 20' that is partially connected to this bed 20.

By the way, since the bottom surface of the bed 20 is folded upward when not in use, the leaf spring 21 provided on the bottom surface protrudes upward. Therefore, there is a risk that an occupant may be injured by the leaf spring 21, or an object may come into contact with it and be damaged.

(Purpose) The object of the present invention is to eliminate the problems caused by the leaf springs protruding from the bottom surface of the bed when the bed is folded.

(Structure) This invention embeds a lock spring made of a U-shaped leaf spring in the bottom of the bed so that it does not protrude outside when the bed is folded, and also locks one end of the lock spring to accommodate the lock spring. Fix it to the edge of the hole, attach the other end to the belt,
By pulling the belt against the elasticity of the lock spring, the engagement of the engagement member of the support base fitted with the lock spring is released. That is, when the lock spring is in a state where the lock spring is fitted inside, the lock spring elastically contacts and locks the lock spring in a holding manner due to the elasticity generated inside the lock spring, but when one end of the lock spring By pulling the attached belt, the lock spring is expanded outward and the locked state is released.

(Embodiment) Fig. 1 shows the inside of a vehicle equipped with a bed locking device according to the present invention, in which the bed 20 is folded with its bottom facing upward on a fixed bed 20' as in the conventional case. , like the conventional product, the leaf spring 21
is not protruding from the bottom.

A support base 1 on which the bed 20 is placed and fixed.
0 and 10' have the same structure as the conventional product. That is, it consists of two plates fixed upright at intervals on the vehicle floor, one of which has a U-shaped engagement member 11 protruding from the top surface, and both the support stands 10, 1
The space between 0' and 0' is the article storage section A.

When the lock spring 3 provided on the bed 20 engages with the above-mentioned engaging member 11, the bed is in a locked state. This will be explained in detail based on FIGS. 2 and 3.

The bed 20 is composed of a skin 23, a cushion material 24 made of foam, and a bottom plate 25 made of a hard plate, and a locking hole 22 is formed in the cushion material 24 at a position corresponding to the engagement member 11 in the bottom plate 25. A lock spring 3 made of a plate spring and bent into a substantially U-shape is accommodated in this locking hole 22. Attachment portions 32, 32' extend from both free ends of the lock spring 3, one of which 32 is fixed to the bottom plate 25 with screws 33, etc., and the other 32' is fixed to the belt 4. When the belt 4 is pulled against the elasticity of the lock spring 3, the U-shaped lock spring 3 expands outward. Therefore, the locking hole 22 is opened so that the lock spring 3 can be expanded outwardly.
A gap is provided between the mounting portion 32' side of the lock spring 3 and the inner wall of the locking hole 22 when the lock spring 3 is housed in the locking hole 22. Further, the lock spring 3 has elastic contact portions 31, 31' formed by cutting grooves in the left and right wall plates in a U-shape.
are formed, and the engaging member 11 is locked by the elastic contact parts 31 and 31'.
1 and 31' are integrally provided with the mounting parts 32 and 32', so that the locked state can be released by pulling the mounting part 32' with a belt. In the figure, reference numeral 34 denotes a mounting screw for fixing the belt 4 to the mounting portion 32'.

The belt 4 has such a length that it protrudes outside when the bed 20 is in use, and it is not only possible to release the locked state but also change the belt 4 from the use state of the bed 20 to the folded state (not in use) as shown in FIG. state). That is, when the belt 4 is pulled in the locked state, the lock is released as described above, but if the belt 4 is pulled still, the bottom plate 2
Lock spring 31 partially fixed to 5
is accommodated in the locking hole 22, so the bed 20 is raised and folded onto the fixed bed 20'.

(Effects) According to the present invention, when the bed is folded with the bottom facing upward, the lock spring is buried within the bed, so that it does not protrude to the outside. Therefore, unlike conventional products, the lock spring does not injure passengers or damage goods, so it can be used with peace of mind. Also, one end of this lock spring is attached to the bottom plate and the other end is attached to the belt, so pulling the belt releases the lock, and pulling the belt further raises the bed in use, allowing it to be folded. It is convenient.

[Brief explanation of drawings]

Figure 1 is a perspective view of a bed equipped with this device;
The figure is a vertical sectional view of the main part, Figure 3 is an exploded perspective view, and Figure 4 is a longitudinal sectional view of the main part.
The figure is a perspective view of a bed equipped with a conventional product. In the figure, 10 is a support base, 11 is an engaging member, 20 is a bed, 3 is a lock spring, and 4 is a belt.

Claims (1)

[Scope of utility model registration request] It consists of a support base from which an engagement member protrudes from the top surface, and a bed that is placed on the support base and has a locking hole at a position where the engagement member faces, and the support base has a locking hole in the bed. A lock spring consisting of a substantially U-shaped leaf spring that fits into the engagement member is housed, and one free end of the lock spring is fixed to the lip of the locking hole, and the other end is fixed to the belt. A locking device for a vehicle bed, characterized in that by pulling this belt, a locking spring in a locking hole is expanded outward to release the lock.