JPH0614748Y2 - Inclinometer in bed - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inclinometer in a hospital bed.

[0002]

2. Description of the Related Art In a hospital, treatment may be performed by inclining a bed (for example, in the case of a patient with high blood pressure, the floor on the head side is set to be somewhat higher than the floor on the leg side). For that purpose, means for making the tilt of the bed immediately visible can be provided, for example, an inclinometer and a goniometer. By using such an inclinometer and a goniometer, the bed can be tilt-adjusted at a desired angle. You can also easily check if the bed is level.

[0003]

However, the range of inclination of the bed at the time of treatment as described above is within ± 10 °, and within such a range, the deflection of the pointer for instructing inclination is small. And it is difficult to read accurately. Therefore, an object of the present invention is to provide an inclinometer with a simple structure and more sufficient accuracy.

[0004]

In order to solve the above-mentioned problems, an inclinometer in a bed according to the present invention has a case attached to a side frame of the bed, and a weight is provided in the case.
A pendulum consisting of a swing arm attached to the weight is provided, a rotary gear that rotates in conjunction with the swing of the pendulum is provided, and a driven gear having a smaller diameter than that of the rotary gear is engaged, and the rotation of this driven gear It is characterized in that a pointer that rotates in conjunction with a driven gear is attached to the moving shaft, a tip portion of the pointer is bent and formed, and a scale plate is provided so as to correspond to a moving range of the tip portion.

[0005]

When the bed is tilted, the pendulum tilts around the center of rotation of the swing arm. Then, the rotating gear is interlocked, and the driven gear is interlocked. The rotation axis of the driven gear works together, and the pointer swings. The degree of shake is amplified by the pointer and can be easily read by reading the scale indicated by the pointer on the scale plate.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An inclinometer in a bed according to the present invention will be described below with reference to the accompanying drawings with reference to an embodiment. In FIG. 1, reference numeral 1 indicates an inclinometer, and the inclinometer 1 includes a housing 4 attached to a side frame 3 of a bed 2, and a weight 6 constituting a pendulum 5 in the housing 4. , The swing arm 7 attached to the weight 6, and the rotating gear 8
And a driven gear 9. As shown in FIG. 2, the tip end portion of the swing arm 7 has a rotating gear 8
Is coaxially attached to the rotating shaft 10 and is configured as a pendulum having the tip as the center of rotation. A driven gear 9 having a smaller diameter than that of the rotating gear 8 is meshed with the rotating gear 8, and a rotation shaft 11 of the driven gear 9 is interlocked to rotate with the driven gear 9. The pointer 12 is attached, the tip portion 13 of the pointer 12 is bent, and the tip portion 13 is provided with a scale plate 14 showing an inclination angle.

In such an inclinometer 1, as shown in FIG. 3, (inclination angle of bed 2) = (deflection angle θ1 of pendulum 5). Also, (the deflection angle θ1 of the pendulum 5) = (the rotation angle of the rotary gear 8). By the way, (the rotation angle of the rotation gear 8), that is, the amount of rotation is transmitted to the driven gear 9, so that (the rotation angle θ2 of the driven gear 9) = (R / r) × (the rotation gear 8
Rotation angle θ1). (However, R: radius of the rotating gear 8, r: radius of the driven gear 9, R> r). That is, since the driven gear 9 rotates at (R / r) θ1, if the length L of the pointer 12 itself is properly set, even if the inclination angle is small, the tip portion 13 of the pointer 12 is amplified and shakes, and the scale plate. With 14, the tilt angle can be read.

In the inclinometer 1 having the above-mentioned structure, when the bed 2 is tilted, the pendulum 5 tilts about the rotary shaft 10 of the rotary gear 8 which is the center of rotation of the swing arm 7. Then, the rotating gear 8 interlocks with the driven gear 9, and the displacement amount of the rotating gear 8 is transmitted to the driven gear 9. The rotation shaft 11 of the driven gear 9 is interlocked, and the pointer 12 is swung. The degree of shake is
(Rotation angle θ2 of driven gear 9) = (R / r) × (rotating gear 8
Since the rotation angle of the driven gear is amplified, the deflection angle of the pointer 12 increases, and by reading the scale indicated by the tip portion 13 of the pointer 12 on the scale plate 14,
Easy to read. Therefore, even a slight tilt of the bed 2 can be visually recognized, and thus the bed 2 can be finely adjusted.

As described above, since the inclinometer 1 has a simple structure, there is no problem in terms of cost and it can be easily attached to an existing bed and utilized.

[0010]

As described above, according to the present invention, even if the bed is slightly tilted, the deflection angle is amplified and the pointer is used to indicate, so that the bed can be easily read. Also, since it has a simple configuration, there is no problem in cost,
Can be used by attaching to an existing bed.

[0011]

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of an inclinometer in a bed according to the present invention.

FIG. 2 is an exploded perspective view of the inclinometer shown in FIG.

FIG. 3 is a conceptual diagram illustrating the function of the inclinometer in the bed according to the present invention.

[Explanation of symbols]

 1 inclinometer 2 bed 3 side frame 4 housing 5 pendulum 6 weight 7 swinging arm 8 turning gear 9 driven gear 10, 11 turning shaft 12 pointer 13 tip part 14 scale plate

Claims (1)

[Scope of utility model registration request] 1. A housing is attached to a side frame of a bed, and a pendulum composed of a weight and a swing arm attached to the weight is provided in the housing, and a rotary gear that rotates in conjunction with the swing of the pendulum is provided. A driven gear having a smaller diameter than that of the rotating gear is engaged with the rotating gear, and a pointer that rotates in conjunction with the driven gear is attached to the rotating shaft of the driven gear. An inclinometer in a bed, wherein a scale plate is provided in correspondence with the movement range of the section.