JPS5828585Y2 - Lifting and tilting mechanism of floor support frame - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mechanism for raising and lowering a floor.

It is desirable that the height of the floor of a bed, examination table, treatment table, patient transport vehicle, etc. can be adjusted appropriately when patients get on and off, and when performing procedures such as examinations, treatments, or injections. Depending on the type of patient, it may be necessary to slope the floor in order to maintain the patient's head or foot side higher than the other side as part of the treatment.

The present invention uses an extremely simple and rational mechanism to allow both lifting and tilting of the floor to be performed independently without mutual interference. That's right.

Reference numeral 1 denotes a floor support frame, a first drive shaft 2 is provided in the lower part of one side of the floor support frame 1 in the short direction, and first supports are provided on both sides of the first drive shaft 2. Arms 3 are provided in a protruding manner, and floating support arms 4 are provided on both sides of the lower portion of the other side of the floor support frame 1 so as to be rotatable around an axis in the lateral direction thereof.

Reference numeral 5 denotes a base frame, and second drive shafts 6.7 are provided on one side and the other side of the base frame 5, and second drive shafts 6.7 are provided on both sides of each of the second drive shafts 6, 70. support arms 8 and 9 are provided protruding in the same direction, and the second support arms 8 and 9 are rotatably connected to the first support arm 3 and the floating support arm 4, respectively.

In addition, reinforcing rods 10 are suitably installed between the first support arms 3 on both sides, between the floating support arms 4 on both sides, or between the second support arms 8 and 9 on both sides, for example, as shown by imaginary lines in the figure. Of course, they may be connected.

A first telescopic driving rod 12 is connected between the driving portion of the first driving shaft 2, that is, the driving arm 11 protruding from the driving shaft 2 and the floor support frame 1.

Interlocking arms 13, 14 are provided protrudingly on each of the second drive shafts 6, 7, and an interlocking rod 15 is connected between the respective interlocking arms 13, 14. A second telescoping drive rod 16 is connected between the drive point of the base frame 5 and the base frame 5.

This driving point may be any of the interlocking arms 13.14 as long as it rotationally drives the second drive shafts 6, 7, or it may be the second drive shaft apart from the interlocking arms 13.14. 6,
The second driving arm 17 protruding from either of the parts 7 or 7 may be used.
Alternatively, as shown in the figure, it may be placed at an appropriate location on the interlocking rod 15.

The first and second telescoping drive rods 12 and 16 are constructed by having a female screw member (not shown) rotatably driven by a rotational drive source such as a crank handle 18 or an electric motor 19. In addition to the well-known structure in which the female threaded member is moved by screwing together and rotating the lead screw by the rotational drive source, and is expanded and contracted by the movement of the female threaded member, any other structure such as a hydraulic cylinder device may be used. .

The operation of this configuration will be described below based on the specific example shown in the figure.

First, as shown in FIG. 2, when the floor support frame 1 is supported horizontally and the crank handle 18 is rotated to extend the first telescoping drive rod 12, the negative side of the floor support frame 1 is extended. The other side of the telescoping drive rod 12 fixed at 1 pushes the drive arm 11 to the left in the figure and applies a counterclockwise rotational force to the first drive shaft 2 with respect to the floor support frame 1. , the drive shaft 2 rotates upward in the counterclockwise direction using the connection point O between the first support @3 and the second support arm 8 as a fulcrum, thereby raising one side of the floor support frame 1.

On the other hand, the other side of the floor support frame 1 only moves slightly upward and downward as the floating support arm 4 rotates as the first drive shaft 2 rotates upward, and as a result, the floor support frame 1 only moves slightly upward and downward. The support frame 1 has one side inclined upward as shown in FIG. 3a.

Next, when the first telescoping drive rod 12 is shortened, the first
The drive shaft 2 is connected to the telescopic drive rod 12 via the drive arm 11.
The floor support frame 1 rotates downward while being supported by gravity, and lowers one side of the floor support frame 1.

Since the other side of the floor support frame 1 only moves slightly upward and downward as described above, the floor support frame 1 eventually tilts one side downward as shown in FIG.

As described above, by extending or shortening the first telescoping drive rod 12, the floor support frame 1 can be tilted with the - side upward or downward, and in this case, the second support arms 8, 9 This only serves as a pivot point for the first support arm 3 and floating support arm 4 that are connected and supported, and does not impede the inclination.

Next, in the state shown in FIG. 2, when the second telescoping drive rod 16 is extended and the interlocking rod 15 is moved to the left in the figure, the interlocking rod 1
613.14, the second drive shafts 6 and 7 rotate clockwise in the figure in conjunction with each other, so that the second supports @8 and 9 eventually rotate downward and lower the floor support frame 1. I can do it.

Conversely, when the second telescoping drive rod 16 is shortened and the interlocking rod 15 is moved to the right in the figure, the second drive shafts 6 and 7 are interlocked by the interlocking arms 13 and 14 and rotate counterclockwise in the figure. The floor support frame 1 can now be raised.

In this case, the second support arms 8 and 9 are connected to the second drive shaft 6, respectively.
, 7 in the same direction to constitute a parallel movement mechanism, and the connection points o and o' between the second support arms 8 and 9 and the first support arm 3 and the floating support arm 4 are connected to each other. Since the relative positions of the first support arm 3 and the floating support arm 4 do not change, the relative positions of the first support arm 3 and the floating support arm 4 also do not change, and therefore the floor support frame 1 is moved up and down by the second support arms 8 and 9. It will not tilt.

By expanding and contracting the second telescoping drive rod 16 in this manner, if the floor support frame 1 is horizontal, it remains horizontal, or if the floor support frame 1 is tilted as described above, the inclination angle is changed. It can be raised and lowered without changing.

As described above, the present invention allows the lifting and lowering of the floor support frame and the tilting operation to be performed independently without mutual interference, so whether the floor support frame is horizontal or inclined, it can be It has the great feature that it can be raised and lowered while maintaining its condition, and that it can be tilted in both directions regardless of the horizontal height of the floor support frame.

Therefore, by applying the lifting and lowering tilting mechanism of the floor support frame of the present invention, the height of the floor can be optimally adjusted during medical examinations, treatments, injections, etc. The patient's blood circulation status can be changed by raising or lowering only the foot side or the head side of the patient's head, allowing treatments to be performed depending on the type of disease.

In addition, in the present invention, the second telescoping drive rod and the drive source such as the motor for raising and lowering the floor support frame are provided in the base frame, so the weight of the floor support frame can be reduced. Therefore, there is a feature that the required force for raising and lowering can be reduced, and this feature becomes noticeable when, for example, a heavy motor or the like is used as the drive source.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, in which Fig. 1 is an explanatory perspective view of the whole, Fig. 2 is an explanatory side view, Fig. 3 a, l), and Fig. 4. 2A and 2B are explanatory side views showing the respective operations. Code 1... Floor support frame, 2... First
drive shaft, 3... first support arm, 4...
・Floating support arm, 5... Base frame, 6, 7...
...Second drive shaft, 8, 9...Second support arm,
10... Reinforcement rod, 11... Drive arm, 1
2...First telescopic drive rod, 13.14...
...Interlocking arm, 15...Interlocking rod, 16...
・Second telescopic drive rod, 17...Second drive arm,
18... Crank handle, 19...
Electric motor.

Claims (1)

[Scope of utility model registration request] A first drive shaft is provided in the lower part of one side of the floor support frame in the lateral direction thereof, and first support arms are provided protruding from both sides of the first drive shaft. A floating support arm is provided on both sides of the lower side part so as to be rotatable around an axis in the lateral direction thereof, and a second drive shaft is provided on one side and the other side of the base frame, respectively. A second support arm is provided on both sides of the second drive shaft protruding in the same direction, and the second support arm is rotatably connected to the first support arm and the floating support arm,
A first
A telescopic drive rod is connected to the second drive shaft, and an interlocking arm is provided protruding from each of the second drive shafts, and the interlocking rod is connected between the respective interlocking arms. and a second telescopic drive rod is connected between the base frame and the base frame.