JP2955962B2 - Tilt bed device with variable angle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tiltable bed apparatus for variable body training.

[0001]

2. Description of the Related Art Conventionally, many tilting devices use a hydraulic cylinder for automatically tilting to an arbitrary angle, which requires not only high output but also noise and environmental considerations. However, it is not suitable for use in, for example, a tilting device having a variable angle for body training.

[0002]

However, if the bed is to be tilted by using a screw mechanism with one point as a fulcrum, a large torque is required in the initial stage of the tilt, and therefore the drive motor also needs a large capacity. Was.
Further, there has been a demand for a device for body training, particularly a device which can be changed while keeping the inclination angle. In recent years, the number of patients complaining of back pain has increased, and various treatments have been performed. However, there has been a problem that the treatment requires much time and cost.

[0003]

The purpose of the present invention is to provide a tiltable bed apparatus having a variable angle in view of the above-mentioned problems. The purpose of the present invention is to support the bed while moving near the center of gravity of the bed in accordance with the tilt angle of the bed. It is an object of the present invention to provide an inclined bed device as described above. In particular, it is an object of the present invention to provide a tilting bed apparatus for body training and a tilting bed apparatus which can be used for patients who complain of low back pain.

[0004]

Means for Solving the Problems The inclined bed apparatus of the present invention is provided with the following means to solve the above problems. A base mounted on the floor; a pair of frames standing upright on the base; and a bed supported on the frame so as to be swingable about a fulcrum. A pair of guide shafts which are swingably supported and are provided in the longitudinal direction on both sides of the bed and both ends of which are fixed to the bed via bearings, and one end of which is fixed to the base via bearings, and the other end of which is the guide An inclination mechanism comprising a pair of swinging shafts engaged with a first sliding member that fits with the shaft, and a second sliding member that fits with the swinging shaft; and both ends are rotatably supported by the base. A screw shaft, a nut screwed to the screw shaft, and a connecting member fixed to the nut and rotatably connected to the second sliding member, respectively; a motor with a reducer for rotating the screw shaft A screw shaft feeder comprising: a control device for controlling the rotation of the motor; Configured Te, the feed device supporting while moving around the center of gravity of the bed by rotating the, characterized in that tilting the bed.

Next, the operation of the inclined bed device of the present invention will be described. The motor with a speed reducer of the screw shaft feeder is rotationally driven, and the nut screwed to the screw shaft is moved. The nut acts on the connecting member constituting the tilting mechanism, and the second sliding member slides along the swinging shaft, and the swinging shaft acts on the connecting member with a bearing on one end as a base, and the second sliding member Changes the angle of the swing axis while sliding along the swing bar. Since the swing shaft end is engaged via a bearing fixed to the base, it acts on the first sliding member which is a part of the tilting mechanism, and the first sliding member slides along the guide shaft. Push up the bed. When the bed is pushed down, an operation opposite to the above-described operation is performed. Therefore, by rotating and driving the screw feeder, the first sliding member is supported while moving near the center of gravity of the bed, and the bed can be inclined.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an angle-variable inclined bed apparatus according to the present invention will be described below with reference to the drawings, FIGS. 1, 2 and 3. FIG.
Reference numeral 1 denotes a base placed on the floor via pins 4, and a frame 2 is fixed to the base 1. The bed 3 is rotatably supported on the frame 2 via pins 5. On both side surfaces of the bed 3, tilt mechanisms 20 are provided in the longitudinal direction. The tilting mechanism 20 supports the guide shaft 21, and support members 22, 23 that support both ends of the guide shaft 21 and are fixed to the side surface of the bed 3.
It comprises a bearing 24 supported by a first sliding member 25 that moves while being guided by the guide shaft 21. A bearing 24 is fixed to the base 1, and a swing shaft 27 is connected between the bearing 24 and the bearing 26, and the swing shaft 27 is swingable by the bearing 24 and the bearing 26. Further, a second sliding member 28 that moves while being guided by the swing shaft 27 is provided. A screw shaft feed mechanism 30 is provided on the base 1, and the screw shaft feed mechanism 30 is screwed to a motor 31, a ball screw shaft 32 connected to the motor 31, and a ball screw shaft 32. It comprises a ball nut 33, a bearing 34 for supporting the shaft end of the ball screw shaft 32, and a control device 35 for controlling the rotation of the motor 33. Motor 31
Controls the control unit 35 by computer control with an AC servomotor. Further, a connection member 29 is provided on the ball nut 33 and is connected to the first sliding member 25.
The bed 3 is provided with an engaging portion 6 for bending and locking the knee, a belt 7 for locking the abdomen, a pair of grip portions 8 that can be gripped by hand, a belt 9 for locking the ankle, and a pillow 10 for hitting the head. ing. Reference numeral 35 denotes a rest of the bed 3 provided on the base 1.
The variable angle tilt bed apparatus of the present invention operates as follows. The motor 31 of the screw shaft feeder 30 is rotationally driven,
The ball nut 33 screwed to the ball screw shaft 32 is moved. The ball nut 33 acts on the connecting member 29, and the second sliding member 28 slides along the swinging shaft 27, and the swinging shaft 27 changes its angle around the bearing 26 on one end of the base 1. . The first sliding member 25 can push up the bed 3 while sliding along the guide shaft 21, support the bed 3 while moving near the center of gravity of the bed 3, and tilt the bed 3. Using an AC servomotor, the angle can be controlled by a control device 35 such as a personal computer, so that it can be positioned at any position. The bed 3 is provided with an engaging portion 6 for bending and locking the knee, a belt 7 for locking the abdomen, a pair of grip portions 8 that can be gripped by hand, a belt 9 for locking the ankle, a pillow 10, and the like. The body can be fixed to the bed 3. When the bed is pushed down, an operation opposite to the above-described operation is performed.

In the above example, the pair of guide shafts are provided in the longitudinal direction on both sides of the bed. However, the guide shafts may be fixed to the lower surfaces on both sides of the bed. The motor is configured as a motor with a reduction gear. As described above, since the tiltable bed apparatus of the present invention has a drive mechanism of electrically rotating the screw shaft feeder 30 as described above, it can clean, reduce noise, and train the body under a comfortable environment. It can be carried out. Furthermore, the screw shaft feeder is rotationally driven to support the bed while moving near the center of gravity of the bed, and the bed is inclined, so that the electric motor of the screw shaft feeder can be driven with almost constant torque, and the electric motor is small. Can be The motor can be positioned at any desired angular position by using a DC servomotor or an AC servomotor and performing angle control by computer control such as a personal computer. Therefore, the trainer can use the device on the bed 1 for various purposes such as abdominal muscle exercise and treatment for back pain. In particular, in the case of treatment for low back pain, the knee is bent and locked to the engaging portion 6, the pillow 10 is put on the head, the abdomen is locked by the belt 7, and the pair of grip portions 8 are held by the right and left hands. Hold and operate the control device 35 on the bed 1,
By inclining the bed 1 and selecting an inclination angle suitable for the user, the lower back can be stretched using the weight of the head and other parts of the user to treat back pain.

[0008]

As described above, the tiltable bed apparatus of the present invention is a drive mechanism of a type in which the screw shaft feeder is driven to rotate by electricity as described above. The body can be trained. Further, if the drive motor is controlled by computer control, it can be positioned at any desired angle position. Further, the screw shaft feeder is rotated and driven to support the bed in the vicinity of the center of gravity of the bed while moving it, and the bed is inclined. Therefore, the electric motor of the screw shaft feeder can be driven with a low torque, and the electric motor can be driven. Can be miniaturized. The trainer can use the device for a variety of purposes, such as abdominal muscle exercise and back pain treatment.

[0009]

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a tiltable inclination bed device according to the present invention.

FIG. 2 is a view as viewed from an arrow A in FIG. 1, showing an inverted state of the angle-variable inclined bed apparatus according to the present invention;

FIG. 3 is a cross-sectional view showing a cross section taken along the line AA of FIG. 1 of the variable-angle tilt bed apparatus according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base 2 frame 3 bed 20 tilt mechanism 25 first sliding member 27 swinging shaft 28 second sliding member 29 connecting member 30 screw shaft feeder 31 motor 32 ball screw shaft 33 ball nut 35 controller

Claims (1)

(57) [Claims] A base mounted on the floor; a pair of frames erected on the base and fixed; a bed supported on the frame so as to be swingable about one fulcrum; A pair of guide shafts that are swingably supported on the base and are provided in the longitudinal direction on both sides of the bed and both ends are fixed to the bed via bearings, and one end is fixed to the base via bearings; A tilt mechanism including a pair of swing shafts, the other ends of which engage with a first sliding member that fits with the guide shaft, and a second sliding member that fits with the swing shaft; and provided on the base. A screw shaft, a nut screwed to the screw shaft, and a connecting member fixed to the nut and rotatably connected to the swing shaft, respectively.- a motor with a reducer for rotating and driving the screw shaft. A screw shaft feeder provided with: a control device for controlling the rotation of the motor. , The support while moving around the center of gravity of the bed the feed device by driving the rotational angle variable inclination bed apparatus characterized by tilting the bed.