JPS6254019B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a foldable bed pine surge machine. Bed pine surge machines are already known in which the bed main body is foldable and connected in two in order to reduce bulk and facilitate transportation or storage. Either a pine surge device, a threaded rod and a motor for moving the pine surge device are installed, and the pine surge device is moved individually by each motor, or the pine surge device is installed in the upper body support table and the lower body support table respectively. The back pine surgery device and the leg pine surgery device are interlocked by one motor and one threaded rod installed in either the upper body placement table or the lower body placement table. It was structured like this. However, among these bifoldable bed pine surge machines, the former pine surge machine has a motor and a threaded rod that operate the pine surge device independently installed in the upper body support table and the lower body support table, and this is due to the so-called structure. In other words, it is simply a foldable connection of two independent pine surge machines, and requires two motors and two threaded rods, resulting in high costs. The latter pine surgery machine has the advantage of being able to drive the back and leg pine surgery devices with one motor and one threaded rod, but it is folded in half for ease of transportation or storage. There was an inconvenience in that when attempting to fold the device, the pine surge device for the back and legs must be moved and stored in the mounting table on the side where the drive device is installed.

The present invention solves the above-mentioned disadvantages of the conventional products, and has a bed main body divided into two parts, an upper body support table and a lower body support table, which are provided on the axis of the main gear and at a position corresponding to the axis. a driven gear that meshes with the main gear a pine surge device that is foldably pivoted by a pin shaft and is equipped to be reciprocally movable by a chain or belt within the upper body mounting table and the lower body mounting table; and the upper body mounting table is configured to be folded while maintaining the meshing of the driven gear with the main gear using the axis of the main gear and the pin axis as fulcrums. It is something to do. The drawings showing embodiments of the present invention will be described below.

Reference numeral 1 denotes a bed main body which is divided into two parts: an upper body rest 2 and a lower body rest 3, and the upper body rest 2 and lower body rest 3 are connected to the shaft 5 of the main gear 4 at a position corresponding to the shaft 5. It is foldably pivoted by a pin shaft 6 located at . Reference numeral 7 indicates a back pine surge device which is configured to reciprocate within the upper body support table 2 by means of a chain 8, and reference numeral 9 indicates a chain 10 within the lower body support table 3.
This is a pine surgery device for legs that is configured to move back and forth by. Both pine surge devices 7 and 9 are constructed by meshing driven gears 15 and 16 attached to shafts 13 and 14 of chain wheels 11 and 12, on which the chains 8 and 10 are suspended, with the main gear 4. The upper body mounting table is folded using the shaft 5 and pin shaft 6 of the main gear as fulcrums while maintaining the engagement of the driven gear 15 with the main gear 4. It is. In the embodiment shown in FIGS. 1 and 2, shafts 19 and 2 are supported by bearings 17 and 18 attached to chains 8 and 10.
0 shows a pine surge device in which pine surge rollers 21 and 22 are rotatably supported, but as shown in FIGS.
3 and 24 are pivotally supported in a swingable manner, and pine surge rollers 21 and 22 are pivotally supported at the other ends of the links 23 and 24.
Guide rails 25 and 2 whose upper surfaces are curved
6 may be installed in the upper body mounting table 2 or the lower body mounting table 3, respectively. 27 is a reversible motor that rotates the main gear 4 in forward and reverse directions;
The forward and reverse rotation of the switch is controlled by a limit switch 28, 2 which is switched by a reciprocating pine surge device.
9 controls forward and reverse rotation. 33 is chain 8
34 is a reed switch attached to the center of the lower surface of the upper body support base 2. Whenever the power switch is turned off, each massaging device is placed on both the upper and lower sides by the action of the magnet and the reed switch. It is automatically controlled to stop at the center of the stand.

Since the present invention has such a configuration, when the reversible motor 27 is rotated, the pulley 31 fixed to the output shaft of the motor 27 and the pulley 3 pivoted to the shaft 5 are rotated.
The belt 30 stretched between the motor 27
The rotation of the main gear 4 is transmitted to the main gear 4 pivotally attached to the shaft 5, and the driven gears 15 and 16 meshing with the main gear 4 rotate. This driven gear 1
Chain wheels 11, 1 coaxially mounted with 5, 16
Chains 8 and 10 spanned between 1 and 12 and 12 are rotated to drive pine surge rollers 21 and 22.
The pine surge devices 7 and 9 equipped with the above move back and forth in the same direction at the same time within the upper body mounting table 2 and the lower body mounting table 3, and repeatedly apply pine surgery to the back and legs. When folding this pine surge machine into two to reduce bulk during transportation, storage, etc., turn off the switch (not shown), stop the rotation of the reversible motor 27, and remove the connecting pin of the gas or hydraulic cylinder 35. By raising it in the direction shown by arrow a in Fig. 3 and further rotating it,
It is folded in two as shown by the two-dot chain line in the figure.
During this folding process, if the power switch is turned off, the pine surge devices 7 and 9 will always operate on the upper body mounting table 2.
And an automatic control circuit is incorporated so that it stops at the center of the lower body mounting table 3 (not shown).
Therefore, while the driven gear 15 remains engaged with the main gear 4 and revolves around the outer periphery of the gear, the upper body mounting table rotates around the shaft 5 and pin shaft 6 of the main gear 4, and the pine surge device operates the upper and lower limit switches. It can be folded without moving over the top. Moreover, driven gear 15 and main gear 4
The main gear axis and the folding fulcrum are made the same so that the same state of engagement is always maintained not only during folding, but also when the pine surge device is driven and when the pine surge device is stopped, so the left and right pine surge devices It can be driven by one motor and the folding operation can be performed easily and smoothly.

Furthermore, by operating the gas or hydraulic cylinder, the upper body support table can be raised upright as shown by the dashed line in FIG. can.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a plan view showing the internal engine with the sheet stretched over the top of the bed main body removed, and Fig. 2 is a plan view showing the internal engine. Figure 3 is a front sectional view, Figure 4 is a right side view, Figure 5 is a plan view of another embodiment showing the internal mechanism with the sheet stretched over the top of the bed main body removed, and Figure 6 is a front view of the same. FIG. 1...Bed main body, 2...Upper body placement stand, 3...Lower body placement stand, 4...Main gear, 5...Shaft, 6...Pin axis, 7...Back pine surge device, 8...Chain,
9...pine surge device for legs, 10...chain, 1
1, 12... Chain wheel, 13, 14... Shaft, 1
5, 16...driven gear.

Claims (1)

[Claims] 1 The main body of the bed, which is divided into two parts, an upper body resting table and a lower body resting table, is foldably pivoted by a shaft of a main gear and a pin shaft provided at a position corresponding to the shaft, and the inside of the upper body resting table and the lower body resting table are foldably supported. A pinsurge device that is reciprocally movable by a chain or a belt within the lower body mounting table is configured to be driven via a driven gear that meshes with the main gear, and the folding of the upper body mounting table is controlled by the main gear. This bed type pine serge machine is characterized in that it can be folded while maintaining the engagement of the driven gear with the main gear using the gear shaft and pin shaft as fulcrums.