JPH0415086Y2 - - Google Patents

Description

[Detailed description of the invention] The invention of the present application aims to solve the following problems.

(Field of Industrial Application) This invention relates to a storage bed device equipped with an overturn prevention device that prevents the storage frame from overturning when the bed is in use.

(Prior art) As shown in Japanese Utility Model Application No. 61-118457, a fall prevention device in a conventional storage bed device has one end of a lock arm pivotally attached to the shaft of a storage frame, and When the tip is pressed against a guide pin provided in the bed using an elastic plate and the bed is swung from the stored state to the used state, the lock arm moves longitudinally relative to the bed, thereby causing the notch in the lock arm to move. Since the lock arm engages with a lock pin provided on the bed to lock the bed from swinging relative to the storage frame, the lock arm always comes into sliding contact with the guide pin when the bed rotates, which can easily cause damage and generate noise. There is a problem that occurs, and the lock release arm is pivoted to the bed.
The rocking operation of the lock release arm causes the locking arm to swing and disengage the notch from the lock pin, so the structure of the fall prevention device becomes complicated and large, and the side surface of the bed becomes less aesthetically pleasing. There was a problem that the manufacturing cost increased as well as impairing the quality of the product.

(Problems to be solved by the invention) This invention, except for the above-mentioned conventional problems, can prevent the storage frame from overturning when the bed is in use, and can also make the rocking operation of the bed easy and smooth. Moreover, it is an object of the present invention to provide a storage bed device in which the fall prevention device can be downsized.

The configuration of the present invention is as follows.

(Means for Solving the Problems) The present invention takes the measures as described in the claims above, and its effects are as follows.

(Operation) When the bed is swung from the stored state to the used state with the engaging body pivotally connected to the bed held in the locked position, the engaging recess of the engaging body engages with the engaging pin. This locks the storage frame against the bed and prevents the storage frame from falling over. Next, when the engaging body is rotated to the unlocked position using the operating section and held at that position, the engaging recess and the engaging pin are disengaged, and in this state, the bed is swung from the used state to the stored state. When the engaging body is moved, the return portion of the engaging body comes into contact with the engaging pin during the movement, and the engaging body is returned to the locked position and rotated, and is held at the locked position.

(Example) Below, drawings showing examples of the present application will be described. In FIGS. 1 to 4, reference numeral 1 denotes a storage bed device, which includes a storage frame 2 placed upright on the floor, and a base part of the storage bed connected to the storage frame 2 in a vertical direction via a pivot 10. A bed 3 is pivotally connected so as to be able to swing between a stored state P and a horizontal use state Q.
and a fall prevention device 4 interposed between the storage frame 2 and the bed 3.

In the above-mentioned storage frame 2, 11 is a bed storage space with an open front, in which the bed 3 in the storage state P is placed.
It is designed to be large enough to store. 12
1 is a side plate, and 13 is a support plate fixed to the inner surface of the side plate 12, as shown in FIG. 4, to which a support cylinder 14 that rotatably supports the pivot shaft 10 is fixed.

Next, in the bed 3, reference numeral 15 is a bed main body, and the pivot shaft 10 is fixed to the side surface of the base portion, and well-known support legs 16 are attached to the side surface of the tip portion. 17 is a mat installed on the upper side of the bed main body 15.

Next, in the above-mentioned fall prevention device 4, reference numeral 18 denotes an engagement pin protruding from the inner surface of the support plate 13, as shown in FIG. 19 is the side plate 1 of the bed main body 15
A mounting plate 22 is a reinforcing plate fixed to the side surface of the base part of 5a by bolts 20 and nuts 21. 2
3 is a support shaft fixed to the mounting plate 19; 24 is a plate-shaped engagement body rotatably connected to the support shaft 23;
As shown in FIG. 4, it is positioned so as to engage with the engagement pin 18. 25 is a hook pin fixed to the engaging body 24, and 26 is a stopper pin fixed to the mounting plate 19, which also serves as a hook pin. Reference numeral 27 denotes a spring tensioned between the hook pin 25 and the stopper pin 26, and the lock position where the first stopper portion 24a of the engaging body 24 is brought into contact with the stopper pin 26 as shown in FIG. 5A, and the lock position shown in FIG. As shown in E, the second stopper portion 24b of the engaging body 24 is selectively held in an unlocked position in which the second stopper portion 24b of the engaging body 24 is brought into contact with the stopper pin 26.

In the engagement body 24, 28 is an engagement recess;
Reference numeral 9 denotes a guide portion, and numeral 30 denotes a return portion, which are formed in order at the end portion on the side of the engagement pin 18 relative to the position of the support shaft 23, as shown in FIG. The engagement recess 28 is
As shown in FIG. 5D, when the engaging body 24 is in the locked position and the bed 3 is swung to the operating state, the storage frame 2 is engaged with the engaging pin 18 and attached to the bed 3.
It is formed at a position that locks the swinging of. Further, when the engaging body 24 is in the unlocked position as shown in FIG. 5E, the guide portion 29 is in a position where it does not come into contact with the engaging pin 18 due to the rotation of the bed 3, as shown in FIG. 5A. When the engaging body 24 is in the locked position, the engaging pin 18 is moved by the rocking of the bed 3.
It is formed at a position where it comes into contact with. Also, the return section 30
As shown in FIG. 5A, when the engaging body 24 is in the locked position, the bed 3 swings so that it does not come into contact with the engaging pin 18, and as shown in FIG. 5 E, the engaging body 24 is in the locked position. When the lock 24 is in the unlocked position, the bed 3 swings to come into contact with the locking pin 18 and return the locking body 24 to the locked position. 31 is the operation unit, and the usage status Q of bed 3
It is arranged to be located outside the storage frame 2.

In the case of the above structure, when the bed 3 is not in use, the bed 3 is swung to the storage state P as shown in FIG. 5A, and the bed 3 is placed in the storage frame 2.
It is stored in the space 11 of. In this case, the engaging body 24 of the fall prevention device 4 is held in the locked position.

Next, when the bed 3 is to be used, the tip of the bed 3 in the stored state P is pulled forward to swing the bed 3 forward about the pivot 10, and the support legs 16 of the bed 3 are moved forward. When brought into contact with the floor surface, the bed 3 is placed in the usage state Q. On the other hand, when the bed 3 is swung from the storage state P to the usage state Q as described above, the guide portion 29 of the engaging body 24 comes into contact as shown in FIG. 5B during the oscillation, and the subsequent As the bed 3 swings, the engaging body 24 is rotated in the direction of arrow A against the force of the spring 27, as shown in FIG. 5C. When the bed 3 is swung to the usage state Q, the engagement recess 28 of the engagement body 24 engages with the engagement pin 18 by the spring force of the spring 27, as shown in FIG. 5D. In the state in which the engagement recess 28 is engaged with the engagement pin 18 as described above, the swinging of the bed 3 and the storage frame 2 in the approaching direction is stopped by the engagement body 24 and the engagement pin 18. This allows storage frame 2
can be prevented from falling onto the bed 3 even if subjected to an external force such as an earthquake, and can also be prevented from being lifted in the direction of the stored state P of the bed 3. Next, when storing the bed 3 in the usage state Q, the operating portion 31 of the engaging body 24 in the locked position is temporarily pushed by hand or the like to unlock the engaging body 24 as shown in FIG. 5E. Rotate into position. As a result, the engaging body 24 is held in the unlocked position by the spring force of the spring 27, and in this state, the bed 3 is lifted using both hands and rotated to the storage state P, and is stored in the space 11 of the storage frame 2. On the other hand, when the bed 3 is swung from the usage state Q to the stowed state P as described above, the return portion 30 of the engagement body 24 touches the engagement pin 18 as shown in FIG. The engaging body 24 is rotated in the direction of the arrow (R) as the bed 3 subsequently swings, and is returned to the locked position as shown in FIG. 5A.

(Effect of the invention) As described above, in the present invention, when the bed 3 is swung from the storage state P to the use state Q, the engagement recess 28 of the engagement body 24 engages with the engagement pin 18. Since the storage frame 2 is prevented from swinging relative to the bed 3, even if the storage frame 2 is simply placed on the floor, when the bed 3 is swung to the operating state Q, By the rocking operation of the bed 3, it is possible to reliably prevent the storage frame 2 from overturning at all times while the bed is in use, thereby increasing safety when the bed is in use.

Further, even if the bed 3 is rotated to the usage state Q as described above, the relative rocking of the bed 3 and the storage frame 2 is locked, but the engaging body 24 can be unlocked by the operating section 31. When swung into position,
When the engagement recess 28 of the engagement body 24 and the engagement pin 18 are disengaged, the engagement body 24 is held in the unlocked position, and in this state, the bed 3 can be swung to the storage state P. Therefore, by temporarily rotating the engaging body 24 to the unlocked position using the operation part 31, the bed 3 can be lifted with both hands and swung to the stowed state P. The bed 3 can be easily stored.

Further, even if the engaging body 24 is held in the unlocked position when the engaging body 24 is temporarily rotated to the unlocked position as described above, the engaging body 24 is not in the unlocked position. When the bed 3 is swung toward the stored state P, the return portion 30 of the engaging body 24 comes into contact with the engaging pin 18, and the engaging body 24 is rotated back to the locked position. When the bed 3 is swung to the stowed state Q for storage, the engaging body 24 can be returned to the lock position by swinging the bed 3 to the stowed state Q, and the operation for using the bed can be simplified.

Furthermore, even if the device has the above-mentioned effects, its structure is such that the engagement pin 18 is fixed to the storage frame 2, the engagement body 24 is pivotally connected to the bed 3, and the engagement body 24 is moved between the lock position and the unlock position. The engaging body 24 is provided with an engaging recess 28 and a return portion 30, and the operating portion 3
1, the overall structure can be made simple and compact, improving the aesthetic appearance of the side of the bed and reducing manufacturing costs.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is an overall perspective view showing the state of use, FIG. 2 is a perspective view of the fall prevention device, and FIG. 3 is a front view seen from the direction of the arrow.
FIG. 4 is a sectional view taken along the - line, and FIGS. 5A to 5F are explanatory diagrams showing the operation in order. 1...Storage bed device, 2...Storage frame, 3...
Bed, 4... Fall prevention device, 18... Engaging pin, 24... Engaging body, 27... Biasing spring, 28...
...Engaging recess, 30...Returning part, 31...Operation part.

Claims (1)

[Scope of utility model registration request] A storage frame having a bed storage space that is open at the front, and a base part of the storage frame is pivotally connected to the storage frame so that the bed itself can be rotated from a horizontal use state to enter the bed storage space. A bed is arranged to be stored in a vertical position, and the bed is interposed between the storage frame and the bed to prevent the storage frame from falling onto the bed when the bed is in use. A storage bed device comprising an overturn prevention device, an engaging pin fixed at a position remote from a position on the storage frame at which the bed is pivotally connected, and a position on the base side of the bed at a position at which the bed is pivotally connected. The engaging body is pivotally connected to a position closer to the free end side than the locking body, and the engaging body is pivotably pivoted between a locked position and an unlocked position, and around the engaging body, An engaging recess and a return portion are arranged side by side on the side facing the pivot position of the bed, and the engaging recess is engaged with the engaging pin when the engaging body is in the locked position when the bed is in use. When the engaging body is in the unlocked position, the position is selected so that it is removed from the engaging pin, and the return portion is configured to move the engaging body to the unlocked position. In this state, the locus of the bed as it swings passes through the engagement pin position, and in the process of swinging the bed from the usage state to the storage state, the bed itself comes into contact with the engagement pin and returns the engagement body to the locked position. When the engaging body is in the locked position, the locus of the bed due to rocking passes through a position closer to the free end of the bed than the engaging pin; A storage device comprising an operating part for swinging the lock from a lock position to an unlock position, and a spring connected to the engaging body to hold the lock in the lock position and the unlock position, respectively. Bed device.