JPH0525498Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a floor plate support frame tilting device that lifts and tilts the floor plate support frame of a bed, and in particular, the operating switch is changed from the conventional lever type to a rod type. This invention relates to a head floor plate support frame tilting device which is not only unobtrusive but also easy to switch.

[Conventional technology]

As this type of floor plate support frame tilting device, one having a structure shown in FIG. 6 is conventionally known. 6th
In the figure, 1 is a floor plate support frame. Opposed positions x, y of both side frames 1a, 1a' of this floor plate support frame 1
A pair of lower support bases 2, 2' are fixed vertically downward, and the tips 2b, 2' of these lower support bases 2, 2'
A rotating rod 3 is rotatably mounted horizontally between 2b'. A pair of rotating arms 6, 6' are fixed perpendicularly to the rotating rod 3 from both ends of the rotating rod 3, and the tips (free ends) of these arms 6, 6' support the supports 9, 8' of the legs 8, 8'. 9', and are rotatably connected to each other. Further, an operating arm 7 is fixed to an intermediate portion of the rotating rod 3 in a direction perpendicular to the rotating rod 3. The lower support bases 2, 2' are located inside the support bases 9, 9' of the legs 8, 8', and the lower support bases 2, 2' and the support bases 9, 9' of the legs 8, 8' are Link 4,
4' is rotatably connected in parallel to the rotating arms 6, 6'.

Reference numeral 5 denotes a telescoping rod, which has a cylinder body 11 and a piston rod 12 that extends outward from the tip 11a of the cylinder body 11 and has a protruding push rod (not shown) at the tip. The distal end 11b of the piston rod 12 is rotatably connected to the free end 7a of the actuating arm 7, and the tip of the piston rod 12 is fixed to the horizontal frame 13 of the floor plate support frame 1.

14 is a trigger lever, and an operating wire 15
It is connected to the operating lever handle 10, 10' via. By turning the handles 10, 10' in the direction of the arrow, the operating wire 15 is pulled.
Rotate the trigger lever 14. At this time, a push rod (not shown) is pushed in by the trigger lever 14 to extend the piston rod 12 of the telescoping rod 5, thereby lifting and tilting the floor plate support frame.

[Problems that the idea should solve]

However, in the above-mentioned known device, the operating switch for operating the telescoping rod consists of an operating lever handle, which is a nuisance.Especially in a hospital bed, the handle may get caught in the clothes of a nurse, etc., and turn. As a result, an accident occurs in which the floor plate support frame of the bed rises up against one's will and tilts. Furthermore, the above-mentioned operating lever handle requires an operation of turning the lever handle, making the switch operation difficult.

Therefore, the purpose of the present invention is to change the operating switch from the conventional lever handle system to a rod system so that it does not get in the way and is easy to operate. An object of the present invention is to provide a frame tilting device.

[Means for solving problems]

In order to achieve the above object, the present invention includes a floor plate support frame of a bed, a pair of lower support bases fixed vertically downward to opposite side frames of the support frame, and a pair of lower support bases fixed vertically downward to opposite side frames of the support frame. a rotating rod horizontally fixed therebetween, an operating arm having one end fixed to the middle portion of the rotating rod, one end connected to the free end of the operating arm, and the other end fixed to the floor plate support frame. In the floor plate support frame tilting device for a bed, which includes a telescoping rod and an operating switch connected to the telescoping rod via an operating wire, the telescoping rod is connected to a cylinder body and extends outward from the tip of the cylinder body. The piston rod has a protruding push rod at its tip, is rotatably connected to the free end of the operating arm at the distal end of the cylinder body, and is connected to the horizontal frame of the floor plate support frame at the tip of the piston rod. A trigger lever is fixed and rotatably disposed near the protruding tip of the push rod, and an operating rod is rotatably suspended horizontally between the opposite side frames of the floor plate support frame. An operating piece is fixed to at least one end of the switch, and a fixing piece is fixed to the middle portion thereof at right angles to the operating rod, and the operating switch has an outer cylinder and a pressing protrusion at the tip fitted into the outer cylinder. The pressing protrusion is fixed to the floor plate support frame so as to be in contact with or close to the operating piece of the operating rod, and the operating wire has one end connected to the fixed piece of the operating rod and the other end connected to a trigger. When the pressing rod is pressed, the pressing projection protrudes and presses the operating piece, and this pressing rotates the operating rod and pulls the operating wire, simultaneously rotating the trigger lever. As the trigger lever rotates, the push rod is pressed by the trigger lever and the telescoping rod is extended.
As a result, the floor plate support frame is lifted and tilted.

The present invention will be explained below with reference to the accompanying drawings.

FIG. 1 is a perspective view of a specific example of the device of the present invention, in which a bed floor plate support frame 21 is supported on a framework 20. This floor plate support frame 21 has a back plate 22
, a waist plate 23, and a leg plate 24, each of which is secured by pins 25, 25, . They are rotatably connected to each other.

A pair of lower support bases 27, 2 are provided on opposite side frames 26, 26 of the back plate 22 portion of the floor plate support frame 21 mentioned above.
7 is fixed facing vertically downward, and a rotating rod 28 is horizontally suspended between the lower support bases 27 and 27 and fixed.

Furthermore, one end 29a of an operating arm 29 is fixed to the intermediate portion of the rotating rod 28 so as to extend in a direction perpendicular to the rotating rod 28. Reference numeral 30 denotes a telescoping rod, which has a cylinder body 31 and a piston rod 36 extending outward from the tip 31a of the cylinder body 31, as shown in FIG. 1 or 5.
The end 31b of the cylinder body 31 is rotatably connected to the free end 29b of the actuating arm 29, and the tip 36a of the piston rod 36 is fixed to the horizontal frame 40 of the floor plate support frame 21 as shown in the fourth figure. As shown in detail in FIG. 5, the structure of this telescoping rod 30 includes a cylinder body 31, and a high pressure gas chamber 33 is formed inside the cylinder body 31 by a free piston 32.
A piston body 35 is installed in the oil chamber 34, and a piston rod 36 extends outward from one side of the piston body 35.
Thus, a passage 37 is formed in the piston body 35, which communicates the oil chambers 34A and 34B at the front and rear of the piston body 35, and a valve 3 is provided on this passage 37.
8 is included. This valve 38 is opened and closed by a push rod 39 passing through the piston rod 36.

This push rod 39 closes the valve 38 in the extended position to lock the telescopic rod 30, and when the push rod 39 is pushed in the direction of the arrow, the valve 38 opens and the oil chambers 34A and 34
B through the passage 37, and the piston body 3
5 movements are possible. That is, high pressure gas chamber 33
The gas pressure is applied to the piston body 35 through the oil in the oil chamber 34.
The piston rod 36 is pushed out, and the rotating rod 28 in FIG. 1 is rotated to lift and tilt the floor plate support frame 21. This operation of pushing in the push rod 39 is achieved by a trigger lever 41 rotatably disposed near the protruding tip of the push rod 39 as shown in FIG. The switch system is described below.

In FIG. 1, reference numeral 42 denotes an operating rod, which is rotatably mounted horizontally between opposite side frames 26 of the back plate 22 portion of the floor plate support frame 21. An operating piece 43 is fixed to at least one end 42a of the operating rod 42, preferably both ends, and a fixing piece 44 is fixed to the intermediate portion thereof at right angles to the operating rod 42. (See Figures 1 and 2). Furthermore, in FIG. 1, 45 is an operation switch. As is clear from the A-A cross-sectional views of FIGS. 2 and 3, this operation switch consists of an outer cylinder 46 and a pressing rod 48 having a pressing protrusion 47 at its tip, which is fitted into the outer cylinder 46. The pressing protrusion 47 is connected to the operating rod 4.
It is fixed to the side frame 26 of the floor plate support frame 21 so as to be in contact with or close to the operation piece 43 of No. 2. Also, 4
Reference numeral 9 denotes an operating wire, one end of which is connected to the fixed piece 44 of the operating rod 42, and the other end connected to the free end 41a of the trigger lever 41, respectively. In FIG. 3, 50 is a spring.

[Effect]

The device of the present invention configured as described above has a second
When the pressing rod 48 is pressed with a finger as shown in the figure, the pressing protrusion 47 protrudes as shown by the broken line as shown in the third figure, and the operating piece 43 is pressed. At the same time, the operating rod 42 is rotated as shown in FIG. A push rod 39 of the rod 30 is pressed by a trigger lever 41. At this time, in the telescopic rod 30, the valve 38 is opened as shown in FIG. The telescoping rod 30 is extended, and the rotating rod 28 is rotated in the direction of the arrow via the operating arm 29. As a result, the back plate 22 of the floor plate support frame 21 of the bed is lifted as shown in the first figure. Next, when you release your finger from the push rod 48, the push projection 47 returns to its original position due to the elastic pressure of the spring 50, and at the same time, the rotation of the operating rod 42 returns to its original position, causing the tip of the push rod 39 to protrude again and the telescopic rod 30 is in a locked state, and the back plate 22 of the bed is fixed in a lifted state.

In addition, when lowering the bed, use the pressing rod 48.
In the same manner as described above, if you press the telescopic rod 30 with your finger to release the lock, and then apply downward force artificially, it will be easily lowered to its original state with a small amount of weight, such as the weight of the patient on the bed. can.

[Effect of idea]

As described above, in the device according to the present invention, the operation switch is changed from the conventional lever handle type to the rod type, so that it can be used in hospitals, etc., if the handle gets caught in the nurse's clothes or against her will. This prevents an accident in which the floor plate support frame of the bed rises against one's will, and the operation switch does not get in the way. Furthermore, the switch operation can be performed simply by pressing the pressure rod with a finger, making the switch operation easy.

[Brief explanation of the drawing]

FIG. 1 shows a perspective view of a specific example of the device according to the present invention, FIG. 2 shows an enlarged perspective view of the operation switch portion in FIG. 1, and FIG. 3 shows the A of the operation switch according to FIG. -A sectional view, FIG. 4 is an enlarged sectional view of the trigger lever portion in FIG. 1 in the direction of the arrow, FIG. The perspective view of a floorboard support frame operation device is shown. 21... Floor plate support frame, 22... Back plate, 26...
Side frame, 27... Lower support base, 28... Rotating rod, 29
... Operating arm, 29a ... One end, 29b ... Free end, 30 ... Telescopic rod, 31 ... Cylinder body, 3
1a...Tip, 31b...End, 36...Piston rod, 39...Push rod, 40...Horizontal frame, 41...Trigger lever, 42...Operation rod, 4
3... Operation piece, 44... Fixed piece, 45... Operation switch, 46... Outer cylinder, 47... Pressing protrusion, 48
...Press rod, 49...Operation wire.

Claims (1)

[Scope of utility model registration request] A bed floor plate support frame, a pair of lower support bases fixed vertically downward to opposing side frames of this support frame, a rotating rod horizontally fixed between the pair of lower support bases, an operating arm fixed to the middle portion of the rotating rod; a telescoping rod having one end connected to the free end of the operating arm and the other end fixed to the floor plate support frame; and an operating wire connected to the telescoping rod. In the bed floor plate support frame tilting device equipped with a connected operation switch, the telescoping rod has a cylinder body and a piston rod extending outward from the tip of the cylinder body and having a protruding push rod at the tip. , the end of the cylinder body is rotatably connected to the free end of the operating arm, the tip of the piston rod is fixed to the horizontal frame of the floor plate support frame, and a trigger lever is provided near the protruding tip of the push rod. An operating rod is rotatably installed horizontally between the opposite side frames of the floor plate support frame, and an operating piece is attached to at least one end of the operating rod, and the operating piece is fixed to the middle portion of the operating rod. Each piece is fixed to the operating rod at right angles, and the operating switch is composed of an outer cylinder and a pressing rod that is fitted into the outer cylinder and has a pressing protrusion at its tip, and the pressing protrusion is attached to the operating rod. It is fixed to the floor plate support frame so as to contact or be close to the operating piece, and the operating wire has one end connected to the fixed piece of the operating rod and the other end connected to the trigger lever, and when the pressing rod is pressed, The pressing projection protrudes and presses the operating piece, and this pressure causes the operating rod to rotate and the operating wire to be pulled, simultaneously rotating the trigger lever, and this rotation of the trigger lever causes the push rod to be pressed by the trigger lever. and the telescopic rod is extended.
A bed floor plate support frame tilting device characterized in that the floor plate support frame is thereby lifted and tilted.