JPH0728783B2 - Lifting bed adjustment device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a lifting bed adjusting device that can be housed in a ceiling portion when not in use.

[Problems to be Solved by Prior Art and Invention] Today, many rooms are equipped with beds due to diversification of lifestyles. However, if this bed is of a fixed type, the floor area it occupies cannot be effectively utilized, and in some places where the room area is small, the bed cannot be practically installed. Therefore, there is a conventional one in which the bed is erected so that it can be stored on the wall surface, but this has a problem that it is necessary to bind the mat or the bun to prevent it from slipping down when storing.

On the other hand, as shown in Japanese Utility Model Publication No. 48-12259, there is known one in which a bed frame is vertically moved up and down in a horizontal posture. By the way, this one simply raises and lowers the bed pedestal, so that there is a problem that the bed pedestal in a suspended state sways during the lifting operation.

Therefore, it is proposed that the supporting body is projected from the four corners of the bed pedestal, and the tip end of the supporting body is guided by the guide rails installed vertically in the room to prevent the shaking in the suspended state.

By the way, in this kind of lifting bed, the bed pedestal is the same as that of the maker's standard, but the room to install it has various sizes and shapes, and it is not constant. If the guide rail is installed vertically on the wall, it is preferable that the guide rail is attached to the wall.If this is done, the gap between the bed frame and the guide rail will differ for each room. There is also the problem that a separate adjusted support is required, inventory management becomes complicated, and if the mounting position is shifted due to pattern changes etc. and the gap changes, a new support is required. .

[Means for Solving the Problem] The present invention has been devised with the object of providing an adjusting device for a lifting bed which can eliminate these drawbacks in view of the above circumstances, and has a rectangular shape. The tips of a plurality of supports that protrude horizontally from the curved bed stand are fitted and guided in vertically movable guide rails that are vertically installed between the ceiling and the floor. In the elevating bed, the support body is provided so as to be adjustable in the horizontal direction with respect to the bed mount so that the front end portion of the support body fits in the guide rail position, and is adjusted in and out between the bed mount and the support body. It is characterized in that fixing means for fixing the support to the bed frame is provided.

Further, according to the present invention, with this structure, the support body for preventing the swinging of the bed frame can be adjusted to be retracted or retracted in accordance with the guide rail position.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, 1 is a bed pedestal of an elevation bed, and the bed pedestal 1 is formed as a rectangular pedestal with side plates 1a, inner plate 1b, bottom plate 1c, floor plate 1d on which a banquet is laid, etc. Is located in the space between the bottom plate 1c and the floor plate 1d, and the operating shaft 2 is provided at the substantially central portion in the front-rear, left-right direction thereof.
Is rotatably supported. A driven sprocket 3 and four sets of wire drums 4 having the same diameter are integrally supported on the operating shaft 2, and the driven sprocket 3 and a drive sprocket 6 for an electric motor 5 provided on a bed frame are integrally supported. A transmission chain 7 is suspended between and, and the operating shaft 2 is connected to the forward and reverse rotations of the electric motor 5 so as to integrally rotate together with the wire drum 4. The wire 17 can be evenly wound and unwound, and the winding mechanism is formed on the bed frame in this manner.

A tubular guide 8 is integrally provided on each of the four beds of the bed base 1, and the guide 8 is also formed in a tubular shape so as to be movable back and forth in the longitudinal direction of the bed base 1. The body 9 is fitted so as to be retractable. And support 9
Can be fixedly held by a screw 9b in a state of being positioned at a desired position. Here, the support body 9 is set so that not only the advance / retreat operation but also the lateral rotation adjustment operation using the screw 9b as a fulcrum can be performed. A support roller 10 is rotatably mounted on the support body 9 so that a part of the support body 9 can be seen from the tip of the support body 9, and a guide roller 11 is rotatably supported on the lower surface. . on the other hand,
Reference numeral 12 denotes a guide rail which is laid between the ceiling and the floor and which faces in the vertical direction. The tip end portion of the support body 9 is fitted to the guide rail 12 so as to be vertically movable. That is, the guide rail 12
In the embodiment, a fixed side 13a fixed to the body side by a bolt 12a or the like, a side piece 13b rising from one side edge of the fixed side 13a, and a fixed side from the rising tip edge of the side side 13b. 13a
And a side piece 13c that bends in the direction opposite to
A pair of bent object plate materials 13 formed to have a guide piece 13d that bends toward the 13b side, in a state where the guide pieces 13d face each other with a predetermined interval, and are substantially U-shaped between the side edges 13b. It is formed by integrally fixing and interposing both leg pieces of the shaped intermediate member 14 by welding or the like. Then, on the guide rail 12, the support 9 is adjusted for expansion and contraction so that the guide roller 11 is positioned between the guide pieces 13d facing each other (at this time, the lateral rotation is also adjusted). It suffices to adjust the tip portion of 9 so that it can be fitted in such a way that it can move up and down. With this, the portion of the support roller 10 projecting from the support 9 faces the bottom piece of the intermediate member 14 inside the guide rail 12. It is about to do. On the other hand, the upper end of the guide rail 12 The auxiliary plate 15 having the above-mentioned shape is integrally fixed.
One end of the wire 17 is locked to a locking tool 16 which is screwed and supported between the front piece of 15 and the bottom piece of the intermediate member 14, whereby one end of the wire 17 is supported by both ends. It is installed by the structure. Furthermore, a cover plate 12a is provided on the upper end of the guide rail 12.
Is mounted so that its vertical position can be adjusted so as to cover the gap between the ceiling and the upper end of the guide rail 12 which is dimensioned to be slightly shorter. The wire 17 is suspended from the support roller 10 through the guide rail 12, is stretched so as to reach the inside of the bed mount 1 through the inside of the support 9, and the other end is wound around the corresponding wire drum 4. Is connected to the winding mechanism. As described above, the bed 17 is moved up and down along the guide rails 12 by the winding and unwinding operations of the wire 17 caused by the drive of the electric motor 5, and the bed pedestal 1 moves in parallel in the horizontal posture. Then, the bed mount 1 can be automatically raised and lowered, and an automatic raising / lowering mechanism is configured. Further, a plurality of locking holes 13e are formed in the guide piece 13d at the lower end of the guide rail 12 at predetermined intervals. Then, the bed mount 1 has a contact piece 11 of the guide roller 11 to the stopper 18 which is engaged and fixed in the engaging hole 13e.
As a will be described later, a is lowered until it is abuttingly supported, so that the bearing is held by the stopper 18 instead of the wire.

A slack detecting mechanism 19 is provided in the wire extension path configured as described above.
Is provided. That is, although the slack detecting mechanism 19 is provided on the bed pedestal 1 side in the embodiment, the movable body 21 rotatably supporting the pulley 21a is movably provided on the pedestal 20 constituting the slack detecting mechanism. It is this pulley
The wire 17 is suspended on 21a.
1 is always urged by the bullet 22 in the direction in which the inclined surface 21b of the movable body 21 contacts the inclined surface 20a of the pedestal 20. When the wire 17 is strained by the weight of the bed frame 1, the movable body 21 is displaced until the tension force overcomes the biasing force of the ammunition 22 and contacts the stopper 23. There is. On the other hand, 24 is a detection switch provided on the pedestal 20, and the switch bar 24a of the detection switch 24 faces the operating rod 21c planted in the movable body 21, and the movable body 21
While it is in contact with the stopper 23, it is in contact with the large diameter portion of the operating rod 21c and is ON, but the downward movement of the bed pedestal 1 is restricted by the stopper 18 on the guide rail 12 side. Or, when the wire 17 is loosened due to being regulated downward with an obstacle sandwiched between the movable body 21 and the movable body 21, the biasing force of the ammunition 22 overcomes the tension of the wire 17 to move, As a result, in the detection switch 24, the switch bar 24a is operated by the operating rod 2
It is adapted to come into contact with the small-diameter portion 21d of 1c to be switched off, and in this way, the downward drive of the electric motor 5 is set to be automatically stopped.

Next, various safety devices for the electric lifting type bed will be described. First, the first safety device needs to be careful so that the bed pedestal 1 does not inadvertently move even if a person operates the lifting switch 40 when a bed is used. The guard handrail 25 provided on the No. 1 can be switched up and down. That is, the guard handrail 25 is for guarding a person sleeping on the bed so as not to fall from the bed. The abutment plates 25a provided at the lower ends of both legs thereof are fitted inside the case body 25b provided on the side plate 1a of the bed frame 1 so as to be vertically movable while being prevented from coming off. Then, the guard handrail 25 is held in an upright posture by bringing the backing plate 25a into contact with the bottom of the case body 25b while the guard handrail 25 is raised, and the person on the bed falls. However, the guard handrail 25 is lifted, and it is laid down inward so that the guard handrail 25 is tilted toward the notch 25c formed at the upper end of the case body 25b to transform it into the storage posture, and , It has become possible to hold down a group. On the other hand, on the bottom surface of the case body 25b, there is provided an operating rod 26 that is configured to be retractable while being constantly urged upward by an ammunition machine 26a. When the guard handrail 25 is in the upright posture, the operating rod 26 has the guard handrail 25.
It moves downward against the urging force of the ammunition 26a and moves upward when it is in the prone position.
When the guard handrail 25 described above is placed in an upright posture, the detection switch 27 provided opposite to the switch 26 comes into contact with the large-diameter portion of the operating rod 26 to be turned off, and when in the lying posture, the small-diameter portion is turned off. 2
When the guard handrail 25 comes into contact with 6b, the electric motor 5 is turned on, whereby the electric motor 5 does not operate unless the guard handrail 25 is in the laid posture.

On the other hand, the second safety device is for avoiding the risk of a luggage or a person being caught in the ceiling during the upward movement of the bed pedestal 1, which is as follows. Ie the frame on the ceiling
The detection switch 29 is provided via the
The plate-shaped detection body 30 is normally locked to the locking piece 28a provided on the frame 28 in a hanging manner, but as described above, it is sandwiched between the bed mount 1 and the ceiling. When the object is brought into contact with the detection body 30 by the upward movement of the bed pedestal 1 itself and pushed up, the detection switch 29 is turned off and the drive of the electric motor 5 is stopped. Therefore, an obstacle is not caught between the ceiling and the bed base 1.

Next, a third safety device is provided to prevent a person or the like from being caught between the bed base 1 and the floor surface while the bed base 1 is moving downward. This is the slack detecting mechanism 19 for the wire 17 described above.
However, since the bed pedestal 1 has to be regulated to descend, it is necessary to push an obstacle to some extent in order to operate the bed pedestal 1. From the center of the wire, all the weight of the bed must be supported to loosen the wire 17, and the wire 17 will not operate. To avoid this, if an obstacle is found between the floor surface and the bed pedestal, it is necessary to detect it and immediately stop descending for safety, and it is provided. That is, this is composed of a plurality of detection switches 31 provided on the bottom surface of the bed pedestal 1 and a plate-shaped detection body 32 that is normally hooked to the locking piece 32a. When the obstacle comes into contact with the detection body 32 and pushes up the detection body 32 along with the lowering, the detection switch 31 is turned off, the electric motor 5 is stopped, and the lowering of the bed pedestal 1 is restricted. Therefore, damage to obstacles is eliminated.

Further, it is a fourth safety device, which is of a nature which complements the above-mentioned second safety device. That is, the second safety device is a device that does not perform detection operation unless the bed base 1 moves up and the detection body 30 provided on the ceiling is pushed up. For example, when an infant is mistakenly getting in or a baggage is on board. It is especially effective when you are aware of mistaken operation, if you are a person who is sensible to some extent,
It is possible to make an emergency stop before touching the ceiling, and to provide this. That is, this one is attached to the upper edge of the four side plate 1a of the bed mount 1. The detection body 33 is externally fitted in a state in which it is always lifted upward by the urging force of the ammunition 34, and the detection body 33 is provided with an actuating body 35 vertically. Then, the switch bar 36a of the detection switch 36 which is brought into contact with the actuating body 35 is turned off when the person pushes down the detection body 33 to contact the large diameter portion from the small diameter portion 35a. The electric motor 5 is stopped.

The electric circuit of the electric motor 5 is as shown in FIG.
The slack detecting mechanism 19 and the detection switches 24 and 31 of the third safety device are in the descending side circuit, the detection switches 27 and 29 of the first and second safety devices are in the ascending side circuit, and the fourth safety device. The detection switches 36 of the device are provided in both circuits, respectively, and are adapted to perform corresponding ON-OFF operations. Where PBU is the ascending switch, PBD is the descending switch, LS
U is an upper limit switch, LSD is a lower limit switch, and B is a brake.

Further, the electric bed of the present embodiment is provided with illumination lamps 37 and 38 so as to be covered by the detection body 30 provided on the ceiling and the detection body 32 provided on the bottom surface of the bed mount 1, respectively.
When the bed is used, lighting from the top of the bed can be performed by turning on the ceiling-side illumination lamp 37, and by turning on the pedestal-side illumination lamp 38 when the bed is stored, the illumination from the bed pedestal 1 can be used instead of the ceiling. It's ready. In addition, a ladder 39 is provided on the bed platform 1 so that it can be stored and transformed freely. If the lower limit position of the bed platform cannot be lowered too much due to, for example, a desk, it is easy to pull out the ladder 39. It is now possible to get on and off the bed. Further, 40 is an elevating switch (corresponding to the PBU and PBD), and the forward / backward drive of the electric motor 5 can be performed by operating the elevating switch 40. Furthermore, the electric motor 5
Limit switches for the upper and lower limits that detect the number of rotations of the motor and detect the upper and lower limits thereof (corresponding to the LSD and LSU but not described in detail. For example, those disclosed in Japanese Utility Model Publication No. 56-46270). It is the one that is decorated.

In the embodiment of the present invention constructed as described above, the bed mount 1 is operated by pushing the lifting switch 40 to operate the electric motor 5.
If the forward and reverse driving is performed, the four wires 17 are evenly wound around or rewound on the wire drum 4, whereby the bed pedestal 1 is vertically moved while maintaining a substantially horizontal state. It will move up and down. When the person goes to sleep in this object, if the raising / lowering switch 40 for lowering is turned on to drive the electric motor 5, the bed pedestal 1 is lowered while maintaining the horizontal posture as described above. When the contact piece 11a of the guide roller 11 contacts the stopper 18 and the downward movement of the bed pedestal 1 is restricted and the wire 17 is loosened, the wire 17
The slack detecting device 19 detects the slack, and as a result, the electric motor 5 is stopped and the bed base 1 is supported and held by the stopper 18. After that, it suffices to operate the guard handrail 25 in the standing posture, which is an obstacle for going to sleep. On the other hand, if you want to store the bed frame 1, guard handrail 25
After laying down, turn on the raising / lowering switch 40 to drive the electric motor 5 and wind the wire 17.
In this way, the bed pedestal 1 is automatically raised and stored on the ceiling side while maintaining the horizontal posture.

As described above, according to the embodiment of the present invention, since the bed base 1 can be stored on the ceiling side while maintaining the horizontal posture, the bed does not become a hindrance when the bed is not used, and the bed has a large effective room. Space can be secured and a comfortable living environment can be enjoyed. Moreover, the bed bed 1 stored is not stored upright as in the conventional case, but is stored upward in a horizontal posture, so that the sardines will never fall down. The winding mechanism for automatically raising and lowering the bed mount 1 is located at a substantially central position in the front-rear, left-right direction of the bed mount.
Since it is placed between the bottom plate 1c and the floor plate 1d, it does not interfere with the person sleeping, and the size of the bed pedestal is small, so that the actual construction area can be minimized. It can be made small and can be provided as much as possible for building in a small room. Moreover, the suspension loads acting on the four wires 17 for suspending the bed pedestal 1 are substantially equal to each other, and the extension of the wires accompanying this is also approximately equal, so that the winding mechanism is attached to the bed pedestal one. Like the one arranged on the side,
Since the suspension load becomes unbalanced and the extension amount of the wire 17 on the side closer to the winding mechanism increases, there is no problem that the bed pedestal tilts over time, and the horizontal posture is always horizontal for a long time. Can be maintained.

Moreover, the lowering of the bed pedestal 1 is determined by the guide roller 11 coming into contact with the stopper 18 and the wire 17 loosening. In this state, therefore, the bed pedestal 1 is not suspended and supported by the wire 17. Since it is fixedly held by the guide rail 12 via the stopper 18, it can be securely held without any sense of instability, and therefore the bed pedestal 1 does not shake accidentally. Further, this lowering position can be arbitrarily selected by changing the position of the stopper 18, and accordingly, even if furniture such as a desk or a luggage is placed below the bed mount 1, the lower position can be selected. This is convenient because the bed mount 1 can be stopped before the contact.

In the embodiment of the present invention as described above, the horizontal movement of the bed pedestal 1 by electric operation can be reliably performed for a long period of time, but the support 9 protruding from the four corners of the bed pedestal 1 is used.
Is incorporated into the bed mount 1 so that it can be retracted and adjusted freely. Therefore, the protrusion amount of the support body 9 is adjusted according to the vertical position of the guide rail 12 at the installation site, and the support body 9 is in the optimum state. It can be adjusted so as to be fitted and guided in 12, so that even one type of support 9 can be adapted to various guide rail positions.

In this structure, the support roller 10 on which the wire 17 is suspended is provided on the support body 9 itself.
Even if the wire is adjusted in and out, the tensioning state of the wire 17 when the wire 17 reaches the bed mount 1 from the support roller 10 does not change at all, so that the bed mount 1 can be smoothly moved up and down in any condition. You can move. Further, the wire 17 has a double-end support structure in which one end of the wire 17 is locked by a locking tool 16 which is screwed and supported between the front piece of the auxiliary plate 15 and the bottom piece of the intermediate member 14. , There is an advantage that its support will be strong.

Further, in the present embodiment, various safety considerations are made.

That is, by electrically moving the bed mount 1 up and down, the lift switch 40 is accidentally turned on when a person is in the bed.
There is a fear that the bed mount 1 will rise, but in this case, when a person sleeps in a bed, the guard railing is used.
25 is held in a standing position so as not to get in the way. In this case, the detection switch 27 which constitutes the first safety device is turned off as described above, and accordingly, the lifting switch 4 is temporarily moved.
Even if the 0 is turned ON, the electric motor 5 does not drive and the safety is high, and the operation of this type of safety switch is also used for raising and lowering the guard handrail 25. Since the switch operation is not necessary and the annoyance is eliminated, the guard handrail 25 is always erected when going to bed.
There is no danger of rising, and the number of parts can be reduced in addition to the simplification of the structure of such a safety device. Further, since the electric motor 5 is not driven unless the raising / lowering switch 40 is turned on with the guard handrail 25 always in the lying posture, the guard handrail 25 does not get in the way even when it is stored, and therefore the bed mount 1 can be used. Can be stored in the highest position possible.

Further, although the electric motor 5 is not driven unless the guard handrail 25 is laid down in this way, for example, a child mischievously gets on the bed pedestal 1 that is being raised, or raises it while leaving luggage. In this case, there is a risk that these children will be pinched between them and the ceiling, resulting in injury or damage to the luggage, which is avoided by the above-mentioned second safety device. That is, when there are obstacles on the bed bed 1 that is going up, these obstacles come into contact with the detection body 30 provided on the ceiling side and push it up when the bed bed 1 has risen considerably and detect it. The switch 29 is turned off and detected, and the electric motor 5 stops. Therefore, it is possible to avoid a risk that an obstacle is pressed between the ceiling and the bed base 1. When the obstacle is a person, before the second safety device is activated, the fourth safety device, that is, the detector 33 provided on the four side plates 1a of the bed mount 1 is used.
By pressing down with a hand or the like, an abnormality is detected and the electric motor 5 is brought to an emergency stop, resulting in excellent safety. Moreover, since this one is provided on the four side plates, it can be pushed down anywhere, and it gives great power for making a quick judgment. Thus, if these three types of safety devices are used in combination, there are two
Triple safety can be secured.

Further, when descending, the bed pedestal 1 is regulated to descend, in conjunction with the slack detecting mechanism 19 detecting that the guide roller 11 contacts the stopper 18 and the wire 17 loosens. Since this wire is provided on each wire 17, if an obstacle hits the vicinity of one of the guide rails 12 on the floor surface, the guide roller 11 on that side is present due to the presence of the obstacle.
The local slack in the wire 17 that restricts the downward movement of the electric wire also means the stop of the electric motor 5, and this alone ensures a considerable degree of safety. Assuming that there is an obstacle in the center of the floor surface, the obstacle is detected by pushing up the detection body 32, whereby the electric motor 5 is automatically stopped, and accordingly, by the combination thereof, The safety is ensured when the bed mount 1 is lowered. Further, since the lifting switch 40 (PBU, PBD) operates only when it is pushed, it is safe to stop the lifting switch 40 by releasing the hand in case of abnormality.

[Effects and Effects] In short, since the present invention is configured as described above, it is possible to reliably vertically move the bed pedestal horizontally for a long period of time, but the support protruding from the four corners of the bed pedestal is Since it is built in and out of the bed frame so that it can be adjusted in and out, the protrusion amount of the support body is adjusted according to the vertical position of the guide rail at the installation site, and the support body is fitted and guided in the guide rail in the optimum state. Thus, even one type of support can be adapted to various guide rail positions.

[Brief description of drawings]

The drawings show an embodiment of an electric lift bed according to the present invention, wherein FIG. 1 is a schematic perspective view seen from the lower surface of the bed mount, and FIG. 2 is a partially cutaway perspective view seen from the upper surface. , Third
The figure shows a plan view of the bed mount, and FIGS. 4A, B, and C show plan views, front views, and side views of the side plates of the bed mount, and FIGS. 5A and 5B show side views, front views, and 6 of the support. Is a partially cutaway side view of the guide rail part, FIGS. 7A and 7B are front views and plan views of the upper end part of the guide rail, respectively, and FIG. 8 is a sectional view taken along line XX of FIG.
9 is a sectional view taken along the line YY of FIG. 6, FIG. 10 is a perspective view of the stopper portion of the guide rail portion, and FIGS. 11A and 11B are plan views, front views, and FIG. B and C are respectively a perspective view of the guard handrail in a standing posture, a perspective view in a fallen posture, an exploded perspective view of an essential part, FIG. 13 is a vertical side view of a side plate part of a bed mount, and FIG. 14 is an essential part of the same. FIG. 15 is a vertical sectional view of the ceiling portion, FIG. 16 is an exploded perspective view of the second safety device,
17A and B are explanatory diagrams of the action of the third safety device, respectively.
The figure is a vertical cross-sectional view of another example of the above, FIG. 19 is a power supply circuit diagram of an electric motor, and FIGS. 20A, B, C, and D are explanatory views of the action of a support. In the figure, 1 is a bed mount, 2 is an operating shaft, 5 is an electric motor,
6 is a drive sprocket, 9 is a support, 12 is a guide rail, and 17 is a wire.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuhiro Udagawa 2-1-1 Nishishinjuku, Shinjuku-ku, Tokyo Sanwa Shatter Industry Co., Ltd. (72) Inventor Fumitoshi Okazaki 2-1-1 Nishishinjuku, Shinjuku-ku, Tokyo No. 1 Sanwa Shatter Industry Co., Ltd. (72) Inventor Hirohito Fujino 2-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Sanwa Shatter Industry Co., Ltd. (56) References: 61-113661 (JP, U) ) Actual public Sho 48-12259 (JP, Y1)

Claims (1)

[Claims] 1. The vertical ends of a plurality of supports protruding horizontally from a rectangular bed frame are vertically movable on guide rails extending vertically between the ceiling and the floor. In the ascending / descending bed that is guided by fitting, the support is provided so that the leading end of the support fits in the guide rail position so that the support can be moved in and out in the horizontal direction, and between the bed mount and the support. The lifting bed adjusting device is provided with a fixing means for fixing the support, which has been adjusted in and out, to the bed frame.