JPH10234521A - Tilting device for bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely remove uncomfortability given to a bed user in rising, by constituting a tilting device by a connection shaft integrally connected to the lower end of a tilting rod and having rollers to roll in a guide rails on both ends and a link equipped between the connection shaft and a fixing bracket rigidly equipped on a driven shaft. SOLUTION: When a motor is actuated in a condition a user is lying on his/her back, a work shaft 4 advances in the B direction to counter-clockwise rotate a drive shaft 1. Thereby, since an arm 2 integrated with the drive shaft 1 and a fixed bracket 31 are counter-clockwise rotated together, the tip end of the arm 2 is raised to push up the upper part of a raising/lying rod as rotating the roller 20 on the tip end of an arm 2, and simultaneously a link 3 connected to the fixed bracket 31 is pulled to descend a guide rail 71 from the uppermost position in the direction to the drive shaft 1. The arm 2 rises up to descend the connection shaft 51 to swing whole the tilting rod 5 to push out the lower part in the direction leaving from the back part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed wake-up device capable of raising a user's upper body.

[0002]

2. Description of the Related Art A bed provided with a raising device capable of raising a user's upper body has a bottom on which a mattress is placed is supported on a bending plate which is bent by a fixed hinge, and the lifting plate is raised and lowered by driving means. A movable bottom (back bottom) that is bent is placed on the undulating plate.

[0003] For this reason, the undulating plate is driven to undulate by a fixed one-point hinge, and the back bottom of the bottom is rotated about a connecting portion with a fixed bottom (waist bottom) fixed to the bed frame.

[0004]

Therefore, when the back bottom is bent, the mattress located between the back bottom and the waist bottom is compressed, and the compression of the mattress presses the abdomen of the user. Was.

[0005] Therefore, in order to eliminate such inconvenience, a bend is formed between the back bottom and the waist bottom so as to be bent at a part of the waist bottom with a small width in the longitudinal direction of the bed frame in accordance with the bending of the back bottom. There is disclosed one in which a bottom is interposed (for example, JP-A-7-136221).

[0006] However, this problem is solved by improving the bottom side, but the undulating device supporting and bending the bottom has a structure in which the bottom is undulated by a hinge that is still fixed. There was a defect that could not be sufficiently removed.

It is an object of the present invention to completely eliminate the discomfort given to a user when waking up.

[0008]

A bed rising device according to the present invention for achieving the above object comprises a drive shaft which is horizontally traversed in a short direction of a bed frame and is rotated by a driving force of a motor, and a bed. A guide rail fixed to the frame so that the opening faces each other, a pair of left and right arms having a base end integrally fixed to the drive shaft and having a roller at an upper end, and a roller of the arm joined to a lower surface and a bottom formed on an upper surface. A pair of left and right raising and lowering bars to be mounted, a connecting shaft having a lower end of the both raising and lowering bars integrally connected and having rollers at both ends rolling into the guide rails, and a fixing fixed to the connecting shaft and the driving shaft; And a link provided between the bracket and the bracket.

[0009] The up-and-down bar supporting the bottom retreats in the direction in which the lower side moves away from the user's waist when standing up, and the upper side moves in the opposite direction. That is, the entire undulating rod swings like a swing to support the bottom.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a bed provided with a wake-up device according to the present invention. In the figure, (6) shows a bottom, (7) shows a bed frame, (8) shows a mattress, and the bottom (6) is divided into many parts. Blow molded product, back bottom (65), movable bottom (61) (6)
2) It is composed of (63) and (64), a waist bottom (60) fixed to the bed frame (7), and the like.

The back bottom (65) is fixed to the raising and lowering rods (5) and (5) constituting a wake-up device described later,
The back bottom (65), the plurality of movable bottoms (61)... And the waist bottom (60) can be freely bent by a connection shaft inserted in the width direction of the bed frame (7), and each bottom (60) (61). As shown in the figure, the connecting end of (65) is formed with a concave / convex portion to be fitted to each other, and on the other hand, for example, a long hole extending in the longitudinal direction of the bed frame (7) penetrates the convex portion in the width direction. The connecting shaft, which passes through the recess, is penetrated into each of the bottoms (6).
.. (65) are connected so as to be extendable and contractible in the longitudinal direction of the bed frame (7).

As shown in FIG. 2, the wake-up device includes a pair of left and right arms (2) and (2) each having a drive shaft (1), a guide rail (71), and a base end welded to the drive shaft (1). Undulating rods (5), (5) and a pair of left and right undulating rods (5)
It comprises a connecting shaft (51) for integrally connecting both lower ends of (5) and a link (3).

The drive shaft (1) is rotatably suspended in the width direction of the bed frame (7), and a mounting bracket (41) is welded at the center in the axial direction to be orthogonal to the axial direction. Since the operating shaft (4) that moves forward and backward by the driving force of the motor (40) is connected to (41), the driving shaft (1) reciprocates within a certain range by the driving force of the motor (40).

The link (3) is connected to the drive shaft (1).
A fixing bracket (31) for rotatably connecting the drive shaft (1) is also integrally welded, and the base ends of the arms (2) and (2) are fixed to the left and right sides in the axial direction of the drive shaft (1) by welding. I have.

At the end of the arms (2) and (2), rollers (2)
0) and (20) are mounted on the roller (20).
(20) is rotatably joined to the lower surface of the hoisting rod (5).

The right and left undulating rods (5) and (5) are integrally connected by connecting plates (53) and (53) with an angle material, and the connecting plate (53) and (53) are connected to the back bottom (65) of the bottom. They are fastened together by bolts.

Rollers (52) and (52) are attached to both ends of a connecting shaft (51) for integrally connecting both lower ends of the left and right hoisting rods (5) and (5). 5
2) The bed frame (7) is rotatably disposed in the guide rail (71), and the guide rail (71) is U-shaped so that the openings face each other in the bed frame (7). And a member (70) laid on the bed frame (7) so as to be inclined high in a direction away from the drive shaft (1).

An L-shaped link (3) is connected between the connection shaft (51) and the fixed bracket (31) of the drive shaft (1).

In the state shown in FIG. 4, when the motor (40) is operated from a state in which a certain user is lying, the operating shaft (4) moves forward in the direction B and the drive shaft (1) moves counterclockwise. Rotate in the direction. As a result, the arm (2) integral with the drive shaft (1) and the fixed bracket (31) both rotate counterclockwise, so that the arm (2) is raised, and the roller ( At the same time, the upper part of the hoisting rod (5) is pushed up in the direction of the arrow while rolling, and at the same time, the link (3) connected to the fixed bracket (31) is pulled out from the uppermost position of the guide rail (71). 1) descend in the direction.

Then, the arm (2) stands up and the connecting shaft (5)
When 1) is lowered, the entirety of the undulating rod (5) swings like a swing, and the lower side is pushed forward in the direction away from the user's waist, and the upper side is pushed forward, as shown in FIG. , The user's upper body gets up.

Accordingly, since the back bottom (65) fixed to the upper part of the hoisting rod (5) is lifted upward, the movable bottom (61) (62) connected to the back bottom (65) as shown in FIG. ) (63) and (64) are extended while bending. Therefore, the movable bottom (61) is bent at a gentle curve as a whole, so that the mattress (8) placed on the movable bottom (61) is not compressed and the whole of the mattress (8) has a gentle angle with a uniform force. To bend.

Next, in order to change from the state shown in FIG. 3 to the state shown in FIG.
When it retreats in the direction, the entirety of the undulating rod (5) swings in the direction of the arrow, and the bottoms (65) become horizontal as shown in FIG. It contracts in the longitudinal direction of the bed frame (7).

Therefore, the drive shaft (1) rotated by the drive force of the motor (40) has the arm (2) and the link (3).
Since the arm (2) and the link (3) are pivoted to swing the hoisting rod (5), a part of the load applied to the arm (2) is reduced by the link (3). bear. Therefore, the load is not concentrated on the arm (2) side, and the arm (2) is not damaged even after long-term use.

[0024]

According to the present invention, when the standing rod is raised, the lower part moves backward while descending in the direction away from the waist of the user, and the upper part moves forward in the rising direction. In addition, when the undulating rod falls down, the lower part moves upward while the upper part descends and retreats. In other words, the entire undulating rod moves while swinging like a swing to support the bottom, and the bottom is freely bent without being restricted by the undulating movement of the undulating rod.

Therefore, since the bottom can be freely bent and stretched without being restricted by the raising and lowering operation of the raising and lowering rods, the bottom has a curve fitting to the body of the user, and the object of the present invention can be achieved. Comfortable beds are obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a bed provided with a device according to the present invention.

FIG. 2 is a partially cutaway perspective view showing a main part of the device of the present invention.

FIG. 3 is a partial side view showing a wake-up state;

FIG. 4 is a partial side view showing a lying state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drive shaft 2 Arm 3 Link 4 Operating shaft which moves forward and backward by the driving force of a motor 5 Undulating rod 6 Bottom 7 Bed frame 31 Fixed bracket 51 Connecting shaft 71 Guide rail

Continued on the front page (72) Inventor Noriyuki Yamanaka 5-5-1-21 Nihonbashi, Naniwa-ku, Osaka-shi Fuji Medical Instrument Co., Ltd. (72) Inventor Masao Kogure 724 Mogi, Ota-shi, Gunma Prefecture Shoei Co., Ltd.

Claims (2)

[Claims] 1. A drive shaft that is horizontally traversed in the width direction of a bed frame and is rotated by a driving force of a motor, a pair of opposed guide rails fixedly arranged to face an opening in the bed frame, A pair of left and right arms having a base end integrally fixed and having a roller at the upper end; a pair of left and right hoisting bars in which the rollers of this arm are joined to the lower surface and the bottom is placed on the upper surface; A bed raising device comprising: a connecting shaft having rollers rolling on the guide rails at both ends; and a link provided between the connecting shaft and a fixed bracket fixed to the drive shaft. 2. The bed rising device according to claim 1, wherein the bottom is formed so as to be able to expand and contract and bend in the longitudinal direction of the bed frame.