JPH02156950A - Raising/lowering and tilting mechanism for floor part supporting frame - Google Patents

Abstract

PURPOSE:To freely carry out the raising/lowering and tilting operation of a floor part supporting frame by connecting a turning supporting arm between the first and second turning supporting points and installing a turning driving means which can be operated independently onto each turning rod. CONSTITUTION:Turning rods 2a and 2b and working arms 3a and 3b from which the turning rods 2a and 2b are projectingly installed are turned by advancing and retreating the driving rods 10a and 10b simultaneously or in single form in the longitudinal direction of a floor part supporting frame 1, and the supporting frame 1 can be raised and lowered or tilted. When the supporting frame 1 is raised, the driving rods 10a and 10b are advanced and retreated so that the working arm 3a is turned in the counterclockwise direction and the working arm 3b is turned in the clockwise direction. Since, in the raising process of the floor part supporting frame 1, a turning supporting arm 7 is connected with one 3a of the working arms 3, the working arms 3a and 3b shift in the longitudinal direction of a basic board 4 through turn, applied with the regulation by the turning supporting arm 7.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mechanism for lifting and lowering a floor support frame.

(Prior art) The height of the floor of the examination table, treatment table, bed, etc. should be determined according to the height of the examination table, treatment table, bed, etc.
Alternatively, it is desirable to be able to adjust it appropriately during treatments such as injection. Furthermore, depending on the type of disease, it may be necessary to tilt the floor in order to maintain the patient's head side or foot side higher than the other side as part of the treatment.

An example of a conventional lifting/lowering mechanism for a floor support frame capable of adjusting the height and inclination of the floor is shown in the schematic diagram of FIG. 6. (Refer to Utility Model Publication No. 53-37515.) In this method, pivot rods are provided on the head side and foot side of the floor support frame a in the short direction, and each of the pivot rods has a function 1i[ii, c, c are provided protrudingly, and their tips are rotatably fixed to the base d so as to form a parallel link mechanism. It is supported on a base d. In this way, by rotating the actuating arm C using a suitable rotation drive mechanism, the floor support frame a is raised, lowered, and tilted. In other words, if the head-side and foot-side working arms C are linked and rotated as parallel links, the floor support frame a can be raised and lowered in parallel, and the floor support frame a can be moved up and down. In the
By appropriately rotating the operating arm C on either the head side or the foot side, the floor support frame a can be tilted to a desired angle.

Note that the drive mechanism for rotating the operating arm C is omitted in the figure.

(Problems to be Solved by the Present Invention) In the conventional line groove shown in FIG. 6, the locus of movement of the floor support frame a when it descends in parallel is in the longitudinal direction as shown in FIG. 6(b). Since it is curved, there is a drawback that if there is a wall f etc. adjacent to it, it may come into contact with it and cause damage.

The present invention aims to solve such problems.

(Means for Solving the Problems) The configuration of the present invention will be explained based on FIGS. 1 to 5 corresponding to embodiments.

First, the structure described in claim 1 is based on the floor support frame 1.
Rotating rod 2 (2a
, 2b), and each of the rotating rods 2 has an operating arm 3.
(3a, 3b) are installed in a direction in which the actuating arms 3a, 3b are opposite or opposite to each other, and the tip of the actuating arm 3 is supported by the base 4 so as to be rotatable and movable in the longitudinal direction thereof,
Of the operating arms 3, either the head side or the foot side is the operating arm 3.
A rotation rod 2 has a first rotation fulcrum 5 at a proper position of a, and has an operating arm 3a protruding from the first rotation fulcrum 5.
A second rotation fulcrum 6 is configured on the base 4 corresponding to the a side,
A rotation support arm 7 is connected between the first rotation fulcrum 5 and the second rotation fulcrum 6, and each of the rotation rods 2 has a rotation drive means 8 ( 8a, 8b).

Next, the i-structure described in item 2 is the mechanism described in item 1, in which the second rotation fulcrum 6 is a rotation rod on which the operating arm 3a, which constitutes the first rotation fulcrum 5, is protruded. 2a, and the distance between this and the first rotation fulcrum 5 is equal to the distance between the first rotation fulcrum 5 and the rotation rod 2a. It is configured as follows.

Further, in the mechanism described in item 3, in the mechanism described in item 1, the drive means 8 for rotating the rotation rod 2 includes drive arms 9 (9a, 9b) protruding from the rotation rod 2, and The drive rod 10 (10a, 10b) is rotatably connected to the drive arm 9 and is movable forward and backward in the longitudinal direction of the floor support frame 1.

(Operation and Examples) Next, the operation of the present invention will be explained based on FIGS. 1 to 5 corresponding to Examples.

First, in the embodiment shown in FIG. 1, driving means 3a and sb for rotating the rotation rods 2a and 2b on the head side and foot side of the floor support frame 1 are provided as drive arms protruding from the rotation rods 2a and 2b, respectively. The drive rods 10a, 10b are moved forward and backward in the longitudinal direction of the floor support frame 1, and the rotation rod 2 is rotated. It has a sagging configuration.

1 in this embodiment, such forward and backward movement of the drive rod 10 is as follows:
A second drive rod 11 is attached to the female threaded part (not shown) at the tip.
(11a, 11b) are screwed together with screw shafts (not shown) configured inside the drive rods 10a, 11b, and by rotating this screw shaft with the motor 12 (12a, 12b), Although the configuration is such that it can be performed independently, other suitable methods may also be used, such as using a hydraulic cylinder.

The driving rods 10a, 10b having such a configuration can be moved forward and backward in the longitudinal direction of the floor support frame 1 simultaneously or independently, and the rotating rods 2a, 2b and the actuating arms 3a, 3b protruding from them can be moved forward and backward in the longitudinal direction of the floor support frame 1.
By rotating the support frame 1, the support frame 1 can be raised/lowered or tilted. This situation is shown in Figures 2 and 3, and the composition of these figures was created by me! 1! l]j'ii
! 3a and 3b are rotated by the rotating rod 2 in the direction opposite to each other.
This corresponds to the example in which protrusions were provided on a and 2b.

FIG. 2(a) shows a state in which the floor support frame 1 is positioned at its lowering limit, and this state is a state in which black stones and the like can easily move up and down. To raise the support frame 1 in this state, the operating arm 3a should be turned counterclockwise. The 7I arm 3b may move forward and backward on the drive rods 10a and 10b so as to rotate equally in the clockwise direction. Actuation arm 3a.

In order to rotate 3b in this manner, its tips must be moved so that the distance between them becomes narrower, but this is because such tips are moved in the length direction of the base 4 as described above. This is achieved by making it movable. Further, in the above-described raising process of the floor support frame 1, one of the operating arms 3, 3alC, connects the rotary support arm 7, so the operating arm 3a.

3b both rotate and move the base 4 in the longitudinal direction while being restricted by the rotation support arm 7. In other words,
As shown in FIG. 4, when the rotating rod 2a is in the state indicated by symbol A, the floor support frame 1 is at its lowering limit as shown in FIG. When the actuating arm 2a rotates counterclockwise, the operating arm 3a also rotates counterclockwise one step and moves to the symbol B and then to the symbol C, and finally reaches the position indicated by the symbol, and the support frame 1 is moved to a higher position. lead to. At this time, since the rotation support arm 7 is provided between the actuating arm 3a and the base 4, the operation arm 3a is the rotation support arm 7 configured there.
The first rotation fulcrum 5 moves in an arc centered on the 20th rotation fulcrum 6 formed on the base 4.

Therefore, the locus of movement of the rotating rod 2a is a linear locus from the symbol A to the numeral, unlike the curved locus X when the support VI end of the operating arm 3a is fixed to the upper end. In particular, the second rotation fulcrum 6 is configured on the vertical line p passing through the axis of the rotation rod 2a, and the distance between the first rotation fulcrum 5 and the rotation rod 2a is the same as that of the first rotation. When the distance between the fulcrum 5 and the second pivot fulcrum 6 is equal, the locus of movement of the pivot rod 2a1 and the support frame 1 fixing it will be straight.

In this way, in the present invention, the change in the distance in the horizontal direction due to the rotation of the actuating arms 3 (3a, 3b) with respect to the longitudinal direction of the base 4 corresponds to the movement of the distal end side of the actuating arms 3 in the longitudinal direction. is absorbed by the floor support frame 1 and therefore displaces it in its longitudinal direction when the floor support frame 1 is raised! l], so even if there is an adjacent wall, it will not come into contact with it and cause damage.

The above description has been made regarding the upper limit of the floor support frame 1, but it goes without saying that the same applies when the floor support frame 1 is lowered.

In addition, in the present invention, since the rotation support arm 7 that restricts the movement of the operating arm 3 is connected only to one side 3a of the operating arm 3, the support frame 1 can be moved along its longitudinal direction as shown in FIG. It can be tilted freely in any direction.

For example, if only one side 8b of the rotation driving means 8 is driven to move the drive rod 10b forward or backward, the rotation rod 2a only rotates at the current position, but the rotation rod 2b rotates itself. As it moves, it moves on an arcuate trajectory centered on the axis of the rotating rod 2a.
Therefore, the floor support frame 1 on the rotating rod 2b side can be raised or tilted relative to that on the rotating rod 2a side depending on the rotation direction of the rotating rod 2b. The same holds true when the other rotation drive means 8 8a is driven, and the floor support frame 1 on the rotation rod 2a side moves up and down relative to that on the rotation rod 2b. The tilted state shown in FIG. 3(a) is a state in which the rotating rod 2a side of the floor support frame 1 is in a lowered state and the rotating drive means 8b is driven to raise the rotating rod 2b side. Or, by driving the rotation drive means 8a when the rotation rod 2b side is in the upper limit state, the rotation rod 2a
This shows the state in which the side is lowered. Also, Figure 3 (b
) shows a state opposite to that shown in FIG. 3(a).

The following lifting/lowering and tilting operations are performed by moving the actuators 11!3a, 3b in mutually opposing directions using the rotating rod 2a, as shown in FIG.
2b, the same is true except that the rotation direction of the rotation rod 2 and the vertical movement relationship of the floor support frame 1 are reversed.

Note that the method of supporting the operating arm 3a on the base 4 is, for example, by forming a groove 13 in the longitudinal direction on the base 4, and protruding a bottle 14 from the operating arm 3, so that the bottle 14 can be slid freely into the groove 13. This may be done as appropriate.

(Effects of the Invention) As described above, in the lifting and tilting mechanism of the present invention, the floor support frame can be freely lowered and tilted, and the movement trajectory when the floor support frame is raised and lowered is ,
Since it does not curve outward, it forms a vertical line, and it does not protrude sideways, it will not come into contact with a wall or the like and cause damage, and therefore it has the effect of allowing safe lifting and lowering operations.

[Brief explanation of the drawing]

1 to 5 correspond to embodiments of the present invention, in which FIG. 1 is an overall perspective view, FIGS. 2(a), (b), and 3.
Figures (a) and (b) are schematic side views showing the configuration and operation, Figure 4 is a schematic side view showing the state transition of important parts during lifting and lowering, and Figure 5 is a schematic of another embodiment. side view,
FIGS. 6(a) and 6(b) are a schematic perspective view of a conventional example and a schematic side view showing the state transition during elevation and descent, respectively. Code 1: Floor support frame, 2 (2a, 2b): Rotating rod, 3 (3a, 3b): Operating arm, 4: Base, 5: First rotation Dynamic fulcrum, 6... second rotation fulcrum,
7... Rotating support bowl, 8 (8a, 8b)... Rotating drive means, 9 (9a, 9b)... Drive arm, 10 (10
a, 10b)...Driving rod, 11 (11a, l1b)
...Second drive rod, 12 (12a, 12b)...
・Motor, 13... Groove, 14... Bin. Person in order: Paramount Bed Co., Ltd. Representative: Akira Toru, Tsukasa
-J

Claims (3)

[Claims] (1) Rotating rods are provided on the head side and foot side of the floor support frame in the lateral direction thereof, and each of the rotating rods is provided with an operating arm protruding in a direction backward or opposite to each other, The tip of the operating arm is supported on a base so that it can rotate and move in the longitudinal direction, and a first
A second rotation fulcrum is configured on a base corresponding to the side of the rotation rod on which the operating arm protrudes from the first rotation fulcrum, and the first rotation fulcrum is Lifting and lowering of the floor support frame, characterized in that a rotation support arm is connected between the second rotation fulcrums, and each of the rotation rods is provided with rotation drive means that can be operated independently of each other. Tilt mechanism. (2) In the mechanism described in paragraph 1, the second pivot point is
The operating arm that constitutes the first rotation fulcrum is arranged on a vertical line intersecting the axis of the protruding rotation rod, and the distance between the second rotation fulcrum and the first rotation fulcrum is 1. A lifting and lowering tilting mechanism for a floor support frame, characterized in that the distance between one rotation fulcrum and the rotation rod is equal to the distance between the rotation fulcrum and the rotation rod. (3) In the mechanism described in item 1, the driving means for rotating the rotating rod is rotatably connected to the driving arm protruding from each of the rotating rods, and 1. An elevating and lowering tilting mechanism for a floor support frame, comprising a drive rod configured to move freely forward and backward in the longitudinal direction of the floor support frame.