JPS5912894Y2 - Bed that can be raised and lowered and tilted forward and backward - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bed that can be raised and lowered and tilted forward and backward, and more specifically, by operating a single handle provided at the rear of the bed base frame, the entire bed base frame can be raised and lowered horizontally. Or it relates to a bed that can be tilted forward and backward.

Conventionally, in normal times, it is necessary to keep the floor height of hospital beds as low as possible for the patient's sense of security.
During treatment, it is necessary to temporarily raise the bed height.

For this reason, it has been proposed to change the floor height in various ways by operating two handles provided on the sides of the bed base frame. Therefore, it was extremely difficult to raise and lower the bed while keeping it level, and the work efficiency was extremely low.

The present invention was developed in view of the above points, and its purpose is to simultaneously hold the head side and lower limb side of the bed base frame by operating a single handle provided at the rear of the bed base frame. To provide a hospital bed which is capable of raising and lowering the entire bed while keeping it horizontal by raising or lowering the bed, and which also allows the bed to be tilted back and forth as necessary.

Hereinafter, the present invention will be described in detail with reference to the illustrated preferred embodiments.

Figure 1 is a plan view with the bed frame removed, Figure 2 is a front view of the bed, Figure 3 is its right side view, and Figure 4 is C in Figure 1.
-C line sectional view, Figure 5 is a C-C line sectional view in Figure 1,
The figure is a sectional view taken along line C-C in figure 1, and figure 7 is a cross-sectional view taken along line C-C in figure 1.
FIG.

In the figure, reference numeral 1 denotes a bed base frame consisting of front and rear frames 1a, lb and side frames IC, ld, and a supporting frame 2 is installed in parallel between the side frames IC, ld.

3.3, 3', and 3' are leg parts attached to the lower part of the bed base frame 1, and are configured to be extendable and retractable.

The leg portion 3.3 will be explained based on FIGS. 4 and 5. Reference numeral 4 denotes a push frame with wheels 5 attached to its lower part, which is inserted in a telescopic manner into the lifting guide frame described later, and the outer periphery of the upper end. A metal 6 is fixed to the surface, and its sliding surface 7 is brought into contact with the inner peripheral surface of the lifting guide frame.

Reference numeral 8 denotes a support rod having a female screw portion 9 formed in the center thereof to be screwed together with a male screw portion of a lifting rod described later, and is fixed to the upper end portion of the press frame 4.

Reference numeral 10 denotes a spring wound around the support rod 8 between the upper end of the push frame 4 and the lower part of the casing, which will be described later.

Reference numeral 11 denotes an elevating guide frame having a metal 12 fixed to the inner circumferential surface of its lower end and whose sliding guide surface 13 is brought into contact with the outer circumferential surface of the push frame 4.

Reference numeral 14 denotes a housing to which the upper end of the lift guide frame 11 is fixed, and the upper end is fixed to the support frame 2 of the bed base frame 1.

Reference numeral 15 denotes a screw screw that raises and lowers the bed base frame 1 as it moves up and down, and has a male screw portion 16 formed on the lower outer periphery to be screwed into the female screw portion 9 of the support rod 8, and a bearing on the housing 14. It is rotatably supported with a seat 17.17 and a bearing 18.18.

Gears 19 and 20 are perpendicular to each other and are attached to the upper end of the screw punch 15.

21 is a sprocket attached to the upper end of the screw punch 15, and 22 is a chain that wraps around the sprocket 21 and the corresponding sprocket 21 to transmit the rotational force of the screw punch 15 to the other screw punch.

In addition, the legs 3', 3' are as shown in FIGS. 6 and 7,
Except for the absence of a gear perpendicular to the upper end of the screw punch 15, the legs 3, 3 have almost the same configuration, so the same reference numerals are given to the members that have the same function, and a detailed explanation will be given. is omitted.

In addition, 23 in the figure is the leg portion 3 of the bed base frame 1.
, 3 and is supported by orthogonal gears 20, and is pivotally supported on the bed base frame 1. Reference numeral 24 is an operating handle attached to the rear frame 16 of the bed base frame, and is connected to the drive shaft 23.

Reference numerals 25 and 26 denote a clutch mechanism that is installed at an intermediate position between the legs 3 and 3 of the drive shaft 23 and is brought into contact and released by operating an operating lever 27 that rotates about a pivot pin 28 as a fulcrum.

In addition, 29 in FIG. 2 is a bed frame placed on the supporting frame 2a of the bed base frame.

The operating mode of the present invention will be explained below.

First, to explain the case where the entire bed base frame 1 is raised horizontally, in the state shown in FIG.
4 rotates the drive shaft 23.

As the drive shaft 23 rotates, the screw punches 15, 15 rotate and spiral upward via the orthogonal gears 19, 20.

As the screws 15, 15 spiral upward, the housing 14.14 and the lifting guide frame 11.11 also rise at the same time.

Incidentally, when rising, the elevating guide frame 11 slides smoothly by the metals 6 and 12, and is stopped from rising at the highest position.

On the other hand, as the screw punches 15, 15 rotate, the chain 2
The sprocket 21° 21 of the screw punch 15, 15 through 2
21 and 21 (corresponding to sprockets) 21 and 21 to simultaneously rotate the screw punches 15 and 15 on the other side.

As the screw punches 15, 15 rotate, the casing 1 is removed in the same manner as described above.
4° 14 and the guide lifting frames 11 and 11 are also raised simultaneously, and the four legs 3, 3. can be raised to

Next, a case where the entire bed base frame 1 is tilted as shown in III in FIG. 2 will be described.

First, after setting the clutch to position I in FIG. 2, operate the lever 27 to release the clutches 25 and 26.

After that, if you turn the handle 24, the front drive shaft 23
As described above, only the legs 3.about.3' on the rear side, that is, on the lower leg side, extend upward, and the bed base frame 1 is tilted as shown at III in FIG.

In addition, when tilting the entire bed base frame 1 as shown in FIG. 2, first extend all four legs 3, 3. Then, by operating the lever 27, the clutches 25 and 26 are released.

Thereafter, when the handle 24 is rotated in the downward direction, only the legs 3, 3' on the rear side, that is, on the lower leg side, are reduced, and the bed base frame 1 is tilted as shown at IV in FIG.

Since the present invention has the structure and operation as described above, by operating one handle 24 provided at the rear of the bed base frame 1, the four legs 3, 3.3', 3' can be raised simultaneously. , the entire bed base frame 1 can be raised and lowered horizontally, and
The handle does not stick out next to the bed frame like in the past,
Since it is set at the rear, the work efficiency of nursing treatment is improved.Also, since there is no horizontal bar between the legs 3, 3. You can take up a lot of side space and use it effectively.

Additionally, the height of the verad can be easily adapted to the height required for treatment or to the desired height of the patient or caregiver.

In addition, since the bed base frame 1 can be tilted forward and backward,
It is also useful for changing the bed position of a patient, and is extremely versatile, and can be used for many purposes such as hospital beds.

[Brief explanation of the drawing]

Figure 1 is a plan view with the bed frame removed, Figure 2 is a front view of the bed, Figure 3 is its right side view, and Figure 4 is C in Figure 1.
-C line sectional view, Figure 5 is a BB line sectional view in Figure 4, Figure 6 is a CC line sectional view in Figure 1, and Figure 7 is a CC line sectional view in Figure 1. . 1... Bed base frame, 3, 3.3', 3'...
... Legs, 4 ... Leg rods, 5 ... Wheels, 6 ... Metal, 8 ... Support rods, 9.
...Female thread, 10...Spring, 11...
...Elevating guide frame, 12...Metal, 4...
...Housing, 15... Lifting rod, 16...
...Male thread part, 17...Bearing holder, 18
...Bearing, 19゜20...Perpendicular gear, 21...Sprocket, 22...
... Chain, 23 ... Drive U-shaft, 24 ...
...Handle, 25.26...Clutch mechanism, 27...Operation lever 28...Pivot pin.

Claims (1)

[Scope of utility model registration request] Telescopic leg parts 3.3' and 3.3' are arranged in parallel at the front and back of the lower part of the bed base frame 1 on which the bed frame 29 is placed, respectively, so that the leg parts 3, 3 are on the same side, The leg portion 3 is slidably inserted into a lifting guide frame 11 vertically disposed on a housing 14 in a telescopic manner, and a female screw portion 9 is formed at the upper portion of a leg rod 4 to which a wheel 5 is attached at the lower portion. A support rod 8 is fixed, a male screw portion 16 screwed into the female screw portion 9 of the support rod 8 is formed in the lower part, and a screw rod 15 having a gear 19, 20 and a sprocket 21 perpendicular to the upper end portion is rotatable. The leg portion 3' is slidably inserted into the lifting guide frame 11 vertically disposed on the housing 14 in a telescoping manner, and the leg portion 3' is a leg rod with wheels 5 attached to the lower part thereof. A support rod 8 having a female screw part 9 is fixed to the upper part of the support rod 8, a male screw part 16 screwed with the female screw part 9 of the support rod 8 is formed at the lower part, and a sprocket 21 is provided at the upper part. 15 is rotatably supported by the casing 14, and a chain 22 extending to the corresponding sprockets 21 and 21 is entangled,
Furthermore, a drive shaft 23 held by the orthogonal gears 20 is pivotally supported on the bed base frame 1, and is linked to an operating handle 24 set at the rear of the bed base frame 1, so that the legs can be moved by rotating the handle 24. The bed base frame 1 is horizontally raised and lowered by expanding and contracting the parts 3.3' and 3.3' at the same time, and a pivot pin 28 is installed at an intermediate position between the leg parts 3 and 3 of the drive shaft 23.
Clutch mechanisms 25 and 26 are installed that connect and release by operating a lever 27 that rotates with
A bed that can be raised and lowered and tilted forward and backward, characterized in that the bed base frame 1 can be tilted forward and backward by making the bed frame 1 movable separately.