JPH0414049Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stopper 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] Generally, this type of elevating bed is constructed so that the bed frame is guided up and down by a plurality of guide rails laid between the ceiling and the floor. Some devices allow the bed frame to be stored in a horizontal position on the ceiling when not in use, thereby making effective use of indoor space. For such devices, it is necessary to install a stopper on each guide rail to restrict the descent of the bed frame and hold it in a horizontal position at the sleeping position, which is the lower limit of the bed frame to move up and down.However, this stopper is not used. It is desirable to be able to freely adjust the mounting height according to the preference and convenience of the person. Conventionally, the guide rail is provided with a plurality of locking parts such as slits in stages at predetermined intervals in the vertical direction, and a stopper is locked in one of these locking parts to adjust the sleeping position of the bed frame. It has been proposed to be able to adjust the height to any desired height. However, since the guide rails must be cut to match the ceiling height at the installation site, if the above-mentioned guide rails are adopted, the positions of the corresponding locking parts of each guide rail will not be horizontal, and This may cause variations in the installation height of the stoppers, and therefore, the troublesome and complicated guide rail positioning work will be required at the installation site, and if accurate positioning cannot be achieved, This causes the bed frame to wobble in the sleeping position, and improvements are needed.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a stopper structure for an elevating bed that can eliminate these drawbacks. In an elevating bed that can be raised and lowered from a lowered sleeping position and stored on the ceiling side by guiding the bed up and down using a plurality of vertical guide rails installed between the ceiling and the floor, the bed frame is placed in the sleeping position. A stopper for regulating descent is configured using an inner plate that slides up and down within a guide rail, a tightening bolt that is screwed into the inner plate, and an outer plate that allows free rotation of the tightening bolt,
The present invention is characterized in that the guide piece of the guide rail can be tightened and loosened between the inner plate and the outer plate by operating the tightening bolt, and the stopper position can be adjusted.

With this configuration, the present invention simplifies the guide rail installation work and improves the workability of the elevating bed installation work.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a bed frame of an elevating bed, and the bed frame 1 is formed into a rectangular shape with a side plate 1a, an inner plate 1b, etc., and an operating shaft 2 is rotatably mounted on the upper surface of the approximately central part. It is freely supported. This operating shaft 2 has a driven sprocket 3,
Four sets of wire drums 4 having the same diameter are integrally supported, and the driven sprocket 3 and four sets of wire drums 4 having the same diameter are integrally supported, but the driven sprocket 3 A chain 7 is suspended between the drive sprocket 6 of the electric motor 5 and the drive sprocket 6 of the electric motor 5 provided on the bed frame. It is designed to rotate integrally, and can evenly wind and unwind four wires 17, which will be described later.In this way, a winding mechanism is formed on the bed frame. There is.

Cylindrical guides 8 are integrally provided at the four corners of the bed pedestal 1, and a support body also formed in a cylindrical shape is attached to the guide 8 so as to be able to move forward and backward in the longitudinal direction of the bed pedestal 1. 9 is fitted in such a way that it can appear and retract freely. The support body 9 can be fixedly held at a desired position by screws 9b. A support roller 10 is rotatably housed in the support 9 on a shaft with a portion thereof peeking out from the tip of the support 9. On the other hand, 12
1 is a guide rail installed between the ceiling and the floor and facing in the vertical direction, and the tip of the support body 9 is fitted into the guide rail 12 so as to be vertically movable.
This guide rail 12 is formed by an inner rail 13 formed of a steel plate into a substantially shape, and an outer rail 14 made of resin that covers the inner rail 13.
On both sides 13a of the inner rail 13, locking pieces 13b for locking stoppers 18, which will be described later, are formed in stages at predetermined intervals in the vertical direction, while on both sides 14a of the outer rail 14, locking pieces 13b are formed in stages at predetermined intervals in the vertical direction. At the tip of the
Guide pieces 14b are formed to protrude toward mutually opposing sides. Furthermore, a locking tool 16 that locks one end of the wire 17 is integrally provided at the upper end of the guide rail 12 . and wire 1
7 is suspended from the support roller 10 through the guide rail 12, and stretched so as to reach the inside of the bed frame 1 through the inside of the support body 9, and the other end is wound around each corresponding wire drum 4. It is connected to the winding mechanism. Then, as described above, the wire 17 is wound as the electric motor 5 is driven;
By the rewinding operation, the bed frame 1 moves up and down in parallel along the guide rail 12 while maintaining a horizontal position, thereby enabling the bed frame 1 to be automatically raised and lowered.

Reference numeral 18 denotes a stopper that is attached to each guide rail 12, and the stopper 18 regulates the descent of the bed frame 1, and when the bed frame 1 is in the lowered sleeping position, supports and holds it in place of the wire 17. However, this stopper 1
8 is an outer plate 19, an inner stopper 20, a tightening bolt 21, a locking stopper 22, and a fine adjustment bolt 23.
It is composed of etc. That is, the inner plate 20 is attached to the outer plate 19 via a tightening bolt 21 that passes through a hole 19a of the outer plate 19 and is screwed into a threaded slot 20a formed in the inner plate 20. And these both plates 19,
20, a contact piece 20b formed on both left and right edges of the inner plate 20 and a rubber 19b provided on the surface facing the wall of the outer plate 19 are connected to the guide rail 1.
Guide piece 1 of the outer rail 14 from the inside and outside of 2
The guide rail 12 is slidably mounted in the vertical direction so as to be in contact with the guide rail 4b. By turning the tightening bolt 21, both plates 19 and 20 are
sandwich the guide piece 14b, so that the stopper 18 is clamped and fixed to the guide rail 18. Furthermore, a bracket portion 19c is formed at the upper end of the outer plate 19 and is bent toward the inside of the guide rail 12, and a locking stopper 22 formed of a leaf spring is provided on the lower surface of the bracket portion 19c. It is fixed integrally with screws. This locking stopper 22 includes a fixed side 22a that comes into contact with the bracket portion 19c, an engaging side 22b formed in a substantially eight-shape shape so as to expand downward from both left and right edges of the fixed side 22a, and the engaging side 22a. It is formed by a knob piece 22c extending outward from the guide rail 12 from the middle part of the guide rail 22b. The engagement stopper 22 is
The tips of the left and right engaging sides 22b are the guide rails 12.
The stopper 18 is held and fixed by being brought into pressure contact with the side 13a of the inner rail 13 due to its elasticity and by engaging with the engaging piece 13b. In this case, it can be freely released by operating the knob 22c to deform the engaging side 22b in the direction of arrow A shown in FIG. 9B. Furthermore, a fine adjustment bolt 23 is attached to the bracket part 19c, and the fine adjustment bolt 23 is screwed into the threaded slot 19d of the bracket part 19c. The lower end surface of the support body 9 comes into contact with the portion 23a, thereby regulating the descent of the bed frame 1, and the fine adjustment bolt 23 can adjust the contact portion 23a to an arbitrary height using the nut 23b. Adjustment can be fixed.

Reference numeral 24 denotes a slack detection mechanism that detects slack in the wire 17 and stops driving the drive motor 5, and the slack detection mechanism 24 includes the wire drum 4,
Each wire tensioning path is provided between the support rollers 10. That is, the case body 24a constituting the slack detection mechanism 24 has two pulleys 24b and 24.
c is rotatably attached to the shaft, but the case body 24
a is the support roller 10 side pulley 2 on the bed frame 1.
The support shaft 24d of 4b is fixed so that it can swing freely. Furthermore, the case body 24a is constantly urged in the direction of arrow B (shown in FIG. 13) by the ammunition 25. And case body 2
4a is a wire 17 under the weight of the bed frame 1.
When the case body 24a is under tension, the tension force overcomes the biasing force of the ammunition 25 and the case body 24a swings until it comes into contact with the regulating body 26. In this state, the case body 24a The switch bar 27a of the ground detection switch 27 provided on the side is pressed. On the other hand, if the bed frame 1 is restricted from descending by the stopper 18 or is restricted from descending by an obstacle between it and the floor, and the wire 17 is loosened, the case body 24a will absorb the biasing force of the ammunition 25. The wire 17 overcomes the tension and swings, thereby opening the switch bar 27a and turning off the ground detection switch 27.
is switched so that the downward drive of the electric motor 5 is automatically stopped. The slack detection mechanism 24 configured in this way has both pulleys 24b,
24c is integrated with the case body 24a and is compactly formed, so it is easy to attach it during assembly. Since the pulley 24b has a structure in which it does not move, the wire path between the pulley 24b and the support roller 10 is constant, so the wire does not come off at the support roller 10, and the bed frame 1 is stably supported. .

Further, 28 is a tape switch affixed to the upper and lower edges of the four peripheral side plates 1a of the bed frame 1, and the tape switch 28 is an integrally formed conductive rubber body 28b on the upper and lower surfaces of the hollow part of the insulating rubber body 28a. When the upper end surface of the tape switch 28 is pressed, the upper and lower conductive rubber bodies 28b come into contact and conduct electricity, thereby stopping the drive of the electric motor 5.

In the embodiment of the present invention constructed as described above, in order to attach the stopper 18 to the guide rail 12, the bed frame 1 is first stopped at the lower limit setting position, which is the sleeping position, by operating the push button switch 29.
Next, the stopper 1 of the guide rail 12 is temporarily attached.
8 is moved to the vicinity of the lower end surface of the support body 9 while operating the knob 22c of the locking stopper 22 to release the engagement with the locking piece 13b of the inner rail 13. If the knob 22c is released here, the stopper 18 is locked and fixed by the locking stopper 22. Furthermore, if the tightening bolt 21 is turned in the tightening direction in this state, the stopper 18 will be clamped and fixed by the inner and outer plates 19 and 20. and,
After fixing the stopper 18 as described above, adjust the height of the fine adjustment bolt 23 so that its contact portion 23a contacts the lower end surface of the support 9, and fix it with the nut 23b to complete the installation. It turns out.

As described above, in the present invention, the stopper 18 attached to each of the plurality of guide rails 12 is used to restrict the descent of the bed frame 1 and to prevent the wire 1 in the sleeping position.
7, the height of the lower limit position by the stopper 18 is not set stepwise, but can be set steplessly, and therefore the guide rail 12 can be laid down. When doing so, troublesome work such as positioning of slits etc. is no longer necessary, and the work of installing the elevating bed is significantly simplified. Moreover, since the height of the stopper 18 can be set extremely accurately at the lower limit position using the fine adjustment bolt 23, there is no variation in the set height of the corresponding stopper 18, and therefore the bed frame in the sleeping position can be adjusted. The rattling in step 1 can also be reliably prevented. In addition, stopper 18
is fixed by clamping with inner and outer plates 19 and 20,
Since it is firmly attached to the guide rail 12 by the double fixing means of the locking stopper 22, there is no danger of it coming off due to the load of the bed frame 1, and the elevating bed can be moved safely. It can be made to have a high value.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but the point is that the stopper 18 is clamped and fixed to the guide rail 12 so that the lower limit position and height of the bed frame 1 can be set steplessly. For example, as shown in FIG. 10, it is constructed of inner and outer plates 19, 20 and a tightening bolt 21, and sharp cut-out protrusions 20c are formed on both upper and lower ends of the contact piece 20b of the inner plate 20. In the clamped state, the protrusion 20c is attached to the guide piece 14 of the outer rail 14.
The stopper 18 may be firmly attached by biting into the outer plate 19, and as shown in FIG. Fitting piece 19
After forming the stopper 18 and fixing it in a predetermined position, the slit 3 is inserted at a predetermined interval in the vertical direction.
The holding plate 30 on which 0a is formed is attached to the fitting piece 19
The outer rail 1 is inserted in a state where f is fitted into the slit 30a.
4 may be integrally attached to the side 14a of 4. That is, in this case, the stopper 18 is engaged with the slit 30a of the holding plate 30 to set the height stepwise. Since it is retrofitted according to the slit 30
The horizontal positioning of the guide rail 12 can be automatically performed, and the positioning when installing the guide rail 12 is not necessary as in the previous embodiment.

Furthermore, the present invention is not limited to the above-mentioned electrically-operated elevating bed, but can of course be applied to a manually-operated elevating bed as shown in FIG. Similar to the electric type, this manual type raises and lowers the bed frame 1 by forward and reverse rotation of the operating shaft 2, but the bed frame 1 has a drive shaft 31 parallel to the operating shaft 2. is rotatably supported.
A sprocket 32 is attached to one end of the drive shaft 31, and the sprocket 32 and the operating shaft 2
A chain 34 is suspended between the sprockets 33. Further, a worm wheel (not shown) installed in a gear box 35 is pivotally attached to the other end of the drive shaft 31. Furthermore, gearbox 35
A gear shaft (not shown) on which a worm (not shown) meshing with the worm wheel is rotatably supported is rotatably supported inside, and one end of the gear shaft protrudes from the gear box 35. A pulley 37 around which a ball chain 36 is suspended is pivotally attached to the shaft. On the other hand, 38 is a bullet, and the bullet 38
is attached to the bed frame 1 at one end and to the operating shaft 2 at the other end. The bed frame 1 is raised and lowered by the forward and reverse rotation of the operating shaft 2 by the operation of the ball chain 36, but in this manual lifting bed, a worm gear device is interposed in the power transmission path. Therefore, the bed frame 1 can be stopped at any height by the braking action of the worm gear device. Furthermore, the bed frame 1 can be easily raised and lowered by the stored force of the ammunition 38, which is convenient.

[Operation and Effect] In summary, since the present invention is constructed as described above, it can be attached to a guide rail,
Although the bed frame is restricted from descending in the sleeping position, the set height of the lower limit position by the stopper is not determined by the locking part provided in stages on the guide rail side, but by using the stopper inside the stopper. The plate and outer plate are configured to be fixed to the guide rail so that the set height can be adjusted steplessly, so when cutting and laying the guide rail, the locking part There is no need to perform horizontal positioning of the bed, and therefore the installation work of the elevating bed is simplified, and workability can be significantly improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the stopper structure of the elevating bed according to the present invention, in which Fig. 1 is a general schematic perspective view of the elevating bed, Fig. 2 is a partially cutaway perspective view of the same, and Fig. 3 is a partially cutaway perspective view of the elevating bed. FIG. 4 is a plan view of the bed frame, FIG. 4 is a side view showing how the support is attached, FIG. 5 is a perspective view of main parts, FIG. 6 is an exploded perspective view of the guide rail, FIG. 7 is a plan view of the stopper, Fig. 8 is an exploded perspective view of the stopper, Figs. 9A and B are explanatory views of the action of the stopper, Fig. 10 is a perspective view showing the second embodiment, and Fig. 11 is an exploded perspective view of the stopper.
12 is a perspective view showing the conventional example, FIG. 13 is a plan view of the slack detection mechanism, FIG. 14 is a sectional view of the tape switch, and FIG. 15 is a perspective view showing the third embodiment.
The figure is a partially cutaway perspective view of a manually operated elevating bed. In the figure, 1 is a bed frame, 5 is an electric motor, and 12
is a guide rail, 14b is a guide piece, 18 is a stopper, 19 is an outer plate, 20 is an inner plate, 2
1 is a tightening bolt, 22 is a locking stopper, and 23 is a fine adjustment bolt.

Claims (1)

[Scope of utility model registration request] The bed frame is guided up and down by multiple guide rails facing vertically installed between the ceiling and the floor.
In an elevating bed that can be raised from a lowered sleeping position and stored on the ceiling side, a stopper that restricts the descent of the bed frame in the sleeping position is screwed to an inner plate that slides up and down within a guide rail. The guide piece of the guide rail can be tightened and loosened between the inner plate and the outer plate by operating the tightening bolt. A stopper structure for an elevating bed, characterized in that the stopper structure is configured such that the stopper position can be adjusted by adjusting the stopper position.