JPS60176649A - Rising and falling apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lifting and lowering device used for patient beds, cash register stands, etc.

In general, this type of lifting and lowering device is required to have a simple and lightweight structure, and to have a large vertical movable height.It is also required to be robust, with little sideways movement, to be able to rise and fall in a stable position, and to be manufactured at low cost. It is requested that you be able to do it.

However, the conventional "two-lifting and lowering device" has a structure of multiple XI1. However, there were concerns about strength and rigidity, and the above requirements could not be fully met.

The present invention was invented in view of these problems, and its characteristics are that the lower part is attached to the lower fixed part so as to be movable in the longitudinal direction, and the upper end part is attached to the upper movable part so as to be freely movable in the longitudinal direction. The lift play 1- with the lift play 1- attached thereto, the lower part attached to the lower fixing part so as to be freely movable, and the compressor and John play that are pivotably pivoted at the lower intermediate position to the lift play 1~- of the above-mentioned. 1- forms a link mechanism in the shape of an "in" or "person" when viewed from the side, and furthermore, a plurality of link mechanisms are arranged at predetermined intervals for the pair of lower fixed HBs and the upper movable part. At the same time, the lower ends of the lift plates of the link mechanisms are interconnected with a tie rod to interlock the plurality of link mechanisms, and one of the plurality of link mechanisms is connected to the lift I/play 1. The three-way movable member 61+ is configured to be moved up and down by moving the lower end portion of the three-way movable member 61+ or the tie rod horizontally using a drive mechanism.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

In Figures 1 to 8, ■... means "input" when viewed from the side.
For example, three link mechanisms 1 . . . are arranged at predetermined intervals between the lower fixed part 2 and the movable part 3. In the illustrated example, the lower fixing portion 2 includes a pair of left and right vertical beams 4, 4, and a fixing base 6 with legs 5 to which the vertical beams 4, 4 are fixed. Further, the upward movable portion 3 corresponds to, for example, a plate member such as a floor plate of a patient's head or a top plate of a register table.

Thus, each link mechanism 1 has lift plates 1 and 7 and compression/notion plates 1 and 8, and the lift plate 7 is composed of a pair of channel members opening inwardly in opposite directions of the lower fixing part 2. A lower end portion 9 is attached to the longitudinal beam 4 so as to be movable in the longitudinal direction A. For example, the rotor 10 and the slider are fitted into the vertical beam 4 of the channel and are attached so as to be movable in the longitudinal direction. Further, the upper end portion 11 of the lift plate 7 is swingably attached to the back surface of the upper movable portion 3. In the illustrated example, a horizontal shaft 12 is provided at the upper end portion 11 of the lift plate 1-7. It is attached to the back surface of the upper movable part 3 via fittings B, B which are externally fitted to the left and right ends of the shaft 12 so as to be able to swing freely.

In addition, the compression plays 1 and 8 are connected to the lower fixed part 2.
The lower end portion 15 is attached to the vertical beams 4, 4 so as to be swingable about a support shaft 14. Further, the upper end 16 of the compression plate 8 is pivotally connected to the lower middle position of the lift plate 7 by a pivot shaft 17.

In this way, a plurality of link mechanisms 1 are arranged in the same posture and at predetermined intervals between the lower fixed part 2 and the upper movable part 3 of the upper and lower pair. Then, the lower θ1) 1 parts 9 of the lift plates 7 of the link mechanisms 1 are interconnected with a pair of left and right ties 18, 18, and the plurality of link mechanisms 1 and It is possible to raise and lower by linking all ....

1 and 2, reference numeral 19 indicates the lift plate 7 of the leftmost one among the plurality of link mechanisms 1...
This is a drive mechanism that moves the lower end part 9 in the horizontal direction Q in the direction of the arrow.
1.22, a chain 23 suspended between the two, a screw shaft 24, and a nut member 25.

Screw shirt 1-2. The nut member 25 is pivotally supported on the support shaft 14 of the left end link mechanism 1 so as to be freely rotatable and not move in the axial direction.
The nut part +A25 is provided on the shaft 26 of the lower end part 9 of the rift 1-plate 7, and as the screw shaft 24 rotates forward and backward, the nut part +A25 screws forward and backward, and the lower end of the rift 1-plate 1-7 moves in the direction of the arrow. The section 9 moves horizontally.

Therefore, the movement of the one link mechanism 1 at the left end in FIGS. 1 and 2 is transmitted to all the remaining link mechanisms 1 by the tie loft 18, 18, so that they synchronously move up and down.

Next, as shown in FIGS. 3 to 6, the drive mechanism 19
The screw shaft 24, the nano lary member 25, and the manual handle 27 attached to the outer end of the screw shirt 1-24 are also optional.

Although not shown, due to the expansion and contraction of the fluid pressure cylinder,
It is also preferable to drive the lower end portion 9 of the lift plate 7 of the link mechanism 1 in the direction of arrow A. Alternatively, it is highly desirable to operatively connect the various drive mechanisms 19 described above to the tie rod 8, thereby synchronously interlocking all the links.

As shown in FIG. 7, the elastic part side 28, such as a gas spring or a coil spring, is arranged (=J), and the >IAj part 9 is indicated by the arrow C. It is also desirable to press elastically in the upright direction to reduce the upward operating force and assist the drive mechanism 19.As shown in FIG. It is similarly preferable to provide elastic members 28 . Although not shown, the Quirod 18.
It is also possible to use an elastic member similar to the one shown in .

As is clear from the comparison between Figures 4 and 6, the S-direction moving part 3 moves up and down without swinging in the left-right, front-back, and front-back directions at all (purely). Even if it is placed close to the wall 29, there will be no interference.Therefore, there is an advantage that the bend can be installed as close to the wall 29 as possible.Furthermore, the range in which it can be moved downward is large, It is possible to rise from a flat position as shown in Figure 4 to a tall position as shown in Figure 6.

Furthermore, even if the - direction movable part 3 is long, if you add 19 "C link mechanisms 1..." correspondingly, it will be stable without causing sideways shaking or tilting. Therefore, the upper bound can be lowered. Further, as shown in the figure, since the screw shaft 24 and the nut member 25 only need to be threaded together at one location, there is less power loss and easy upward and downward movement is possible. Also,
It has the advantage that the screw shaft is the shortest (24mm) and the manufacturing cost is low.

In addition, if the lower fixed part 2 is formed by vertical beams 4, 4 (and horizontal beams added as desired), the upper movable part 3 in the lowest descending state can be made extremely short, for example, when bedridden. As a head for elderly people, it has the great advantage that it does not make elderly people feel anxious and can be raised to a sufficient height only when visiting a doctor or disposing of defecation. It is also preferable to use it by installing it in

As explained above, the present invention includes the lift play 1-7 in which the lower θM)faB9 is attached to the lower fixed part 2 so as to be movable in the longitudinal direction, and the upper end part 11 is attached to the upper movable part 3 so as to be able to swing freely. , the lower end portion 15 is swingably attached to the lower fixing portion 2, and the compression plate 8 is swingably connected to the vertical intermediate position of the lift play 1-7. Alternatively, a link mechanism 1 in the shape of a "person" is formed, and a plurality of link mechanisms 1 are arranged at predetermined intervals for the pair of F-side fixed parts 2 and the movable +i+X3, and the link mechanism ■ The ends 9 of the lift plates 7 are interconnected by tie rods 18 to interlock the plurality of link mechanisms 1, and among the plurality of link mechanisms 1... Since the lift plate 7 is moved in the horizontal direction by the movement mechanism 19 and the upper movable part 3 is lowered by the upper limit, the difference between the minimum height and the maximum height is sufficient. Can you make it bigger? j
The old diameter is large, making it ideal for use on patients, etc., and it is usually kept low to give a sense of security to sick people, and is high enough for medical examinations and various treatments, making it extremely convenient. . Furthermore, since the upwardly movable a1;3 moves vertically without swinging, it can be installed close to the wall 29 of the room. Also,
When using a long (elongated) upward movable part 3, increasing the number of link mechanisms 1... will reduce the heavy load (
] Even when moving up and down, it is always possible to move up and down stably. Also, if an unbalanced load occurs such as when a sick person sits in the corner of the bend, the one-way movable part 3
In such cases, the link vM structure 1 of the present invention...
can withstand it well. In particular, it has the great advantage of being able to easily go up and down without becoming swayed even under uneven loads.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is a plan view of another embodiment, FIG. 4 is a side view of the same, and FIG. A plan view of the raised state, FIG. 6 is a side view of the same,
7 and 8 are simplified side views showing other embodiments. DESCRIPTION OF SYMBOLS 1... Link mechanism, 2... Lower fixed part, 3... Upper movable part, 7... Lift play 1., 8... Compression play 1-, 9... Lower end part, 11. - Eco end, 15... Lower θjAj part, 18... Tie l tip, 19... Drive mechanism. Patent applicant Komura Meishakusho J.4 Ludo J

Claims (1)

[Claims] 1. The lower end portion 9 is attached to the lower fixed portion 2 so as to be movable in the longitudinal direction, and the lift plays 1 and 7 are attached to the upper movable portion 3 so that the two end portions 11 are movable in the longitudinal direction, and the lower fixed portion 81; The lower end portion 15 is swingably mounted, and a compression brake is swingably connected at an intermediate position below the lift plate 7.
A link mechanism 1 in the shape of a human figure is formed, and a plurality of link mechanisms 1 are arranged at predetermined intervals for a pair of lower fixed portions 2 and upper movable portions 3.
2 lower end portion 9 of the lift plate 7...
are connected to each other by tie lofts 18 to interlock the plurality of link structures 1..., and the lower end 9 of one of the lift plays 1-7 among the plurality of link mechanisms 1... or 2. A lifting and lowering device characterized in that the tie rod I8 is moved in the horizontal direction by a drive mechanism 19 to raise and lower the upper movable part 3.