JPH056843Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a guard structure for an elevating bed that can be stored in the ceiling when not in use.

[Problems to be solved by the prior art and the invention] Conventionally, in this type of elevating bed frame, the bed frame is suspended by belts, etc., and is guided up and down by guide rails installed vertically in the room, and when not in use. Some are designed to be stored close to the ceiling. In this case, when storing the bed, it is necessary to lower the guard provided on the side of the bed frame in order to bring it close to the ceiling, and then raise it, and when the bed is used, it is necessary to perform operations such as raising the guard, which is complicated.

Therefore, the applicant filed an application (Utility Application No. 62-011354) in which the guard is automatically lowered and stored when it comes into contact with the ceiling and is pressed.
Although the above-mentioned problems have been addressed, this product has a complex structure and a large number of parts, and requires further improvement in order to provide versatility.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a guard structure for an elevating bed that can eliminate these drawbacks. In an elevating bed that is raised and stored on the ceiling side when in use, the bed includes a guard that is movable up and down on the bed frame, a first bullet that pushes and biases the guard upward, and a raised guard. a second bullet that urges the descent restriction means toward the descent restriction side; The present invention is characterized in that it is provided with a restriction release means that changes the descent restriction means to the restriction release side against the ammunition.

With this configuration, the present invention is able to provide a mechanism for automatically storing the guard when the bed frame is raised, with a simple structure.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, B is an elevating bed frame formed in a rectangular shape with four side plates 1 and a bottom plate,
Further, reference numeral 2 denotes four guide rails with a roughly U-shaped cross section that are installed vertically in the room. An arm 3 is provided from a corner of the bed frame B to protrude toward the opening of each guide rail 2, and one end of a belt (not shown) for suspending the bed frame B is fixed to this arm 3. The other end is connected to a drive device 4 provided at the top of the wall guide rail 2, and the drive device 4
The bed frame B is raised and lowered by winding and unwinding the belt by the drive of the belt.

The side plate 1 of the bed frame B is surrounded by a thin plate 1a to form a hollow part 11.
A plurality of (two in the embodiment) cylindrical chambers 12 and a box body 7 are provided inside. Reference numeral 5 denotes a guard in which a pipe 51, a central column 52, and an end column 53 are integrally formed, and the column 53 of the guard 5 is slidably inserted into the cylindrical chamber 12. Between the tip of the column 53 and the bottom of the cylindrical chamber 12, there is a column 53.
A first ammunition 13 is attached that constantly urges upward. A recess 54 that is open at the top is formed approximately at the center of the pipe 51. Reference numeral 6 denotes a push rod (restriction release means) having a head portion 61 and a tapered lower end inclined portion 62, and an elongated notch groove 63 is provided approximately in the middle of the push rod 6. A pin 74 fixed to the box body 7 is fitted and guided by the pin 74 so that the push rod 6 can move up and down. Further, a micro switch 75 is provided below the box body 7 to switch the drive rotation of the drive device 4 between ON and OFF by contacting the tip of the lower end inclined portion 62 of the push rod, and the upper end portion 7
A base 73 of a second ammunition 71 having a curved shape is fixed. Reference numeral 8 denotes a crank that is provided with an upper hook 81 and a lower inclined part 82 and serves as a descent regulating means.
3, it is pivotably attached to the box body 7,
Normally, the inclined portion 82 is pushed up by the second bullet 71, and the crank 8 is urged to rotate counterclockwise, so that the hook 81 is pushed up against the support 52.
It is designed to be locked in a locking hole 55 bored on the side of the guard 5, and this locking restricts the lowering of the guard 5. 9 is a detection tool protruding from the ceiling C.

In the embodiment of the present invention configured as described above, when the bed frame B is not stored on the ceiling C side, the guard 5 is urged upward by the first bullet 13, and in this state, the guard 5 is urged upward by the first bullet 13. Pin 7 at the bottom
The guard 5 moves upward until it comes into contact with the crank 81, and the crank 81 is urged counterclockwise (in FIG. 2) by the second bullet 71 and swings about the pivot 83 as a fulcrum. It is then locked into a locking hole 55 bored in the side surface of the central support 52. In this state, the guard 5 is extended to the highest position and is stationary, and when using the bed frame B, even if the guard 5 is pushed down, the right-angled hook 81 fits into the locking hole 55. There is no risk of subsidence. Moreover, since the head 61 of the push rod 6 is recessed from the surface of the pipe 51,
Care has been taken to prevent Guard 5 from sinking due to accidental contact.

Now, when the bed frame B is raised by an operation not shown, the push rod head 61 attached to the guard 5 comes into contact with the detection device 9 protruding from the ceiling C before the guard 5, and the push rod head 61 This will push down the . At this time, the push rod lower end inclined portion 62 pushes aside the crank inclined portion 82 which was in contact with the second projectile 71, and the crank 8 receives interference from the descending push rod 6 and moves the pivot portion 83. The hook 81 rotates around the center, and the hook 81 is released from the locking hole 55. As a result, the guard 5 is lowered relative to the bed frame (substantially, the bed frame is raised). Then, with the guard pipe substantially housed inside the side plate of the bed frame B, the end of the downwardly inclined part 62 of the push rod 6 comes into contact with the lower micro switch 75, and the drive circuit is cut off, causing the bed frame B to rise. will be suspended.

In this way, when using the present invention as a bed, the guard 5 will not fall down carelessly and will serve as a safety guard, but the bed mount B can be raised to face the ceiling. When the push rod 6 is pressed down by the detection tool 9, the hook 81 that restricts the descent of the guard 5 is automatically disengaged from the locking hole 55. This causes the guard 5 to be pushed down by the ceiling. As a result, the guard 5 can be housed within the bed frame B, and a large indoor space can be secured when the bed is not in use.

Moreover, the lifting of this downward restriction is due to push rod 6
This is done by pressing the push rod 6 against the ceiling before the guard 5 and lowering it, and using this lowering of the push rod 6 to swing the crank 8.
The structure of the release mechanism is simplified, the number of parts is reduced, and assembly is simplified.

[Function and Effect] In summary, since the present invention is constructed as described above, when the guard is used as a bed, the guard is pushed upward by the first projectile, and the descending regulating means exerts the descending regulating action. It will function as a safety fence that will not fall even if you push it down by hand, but when the bed frame is stored on the ceiling side, it will hit the ceiling first and be pushed down.
The restriction release means releases the restriction of the lowering restriction means, and as a result, the guard comes into contact with the ceiling surface, is pushed down, and is compactly stored in the bed frame.

Moreover, this automatic guard storage mechanism can be formed without using complicated mechanical members as in the past, reducing the number of parts and improving ease of assembly.
Significant cost reductions can be achieved, and the system can be highly versatile and highly safe.

[Brief explanation of drawings]

The drawings show an embodiment of the guard structure for an elevating bed according to the present invention, in which FIG. 1 is a schematic front view of the bed frame, and FIG. 2 is a sectional view of the guard. In the figure, 1 is a side plate, 5 is a guard, 13 is a first bullet, 55 is a locking hole, 6 is a push rod, 71 is a second bullet, 8 is a crank, 81 is a hook, and 9 is a detection tool. be.

Claims (1)

[Scope of utility model registration request] In an elevating bed in which the bed frame is raised and stored on the ceiling side when not in use, a guard is provided on the bed frame so as to be movable up and down;
A first bullet that pushes up and biases the guard upward, a lowering restriction means that can restrict the lowering of the raised guard, a second bullet that biases the lowering restriction means toward the lowering regulation side, and a second bullet that biases the lowering guard. The bullet is characterized by being configured by providing a restriction release means that is pressed down upon hitting the ceiling prior to hitting the ceiling and transforms the descent restriction means into a restriction release side against the second bullet. Guard structure for elevating bed.