JP2000116744A - Method of and device for unlocking interlock of vertically moving bathtub in vertically moving type bathing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device for unlocking interlock capable of temporarily unlocking a safety device in preparing work or cleaning work when a stretcher is not mounted on a stretcher table. SOLUTION: The interlock unlocking method of a vertically moving bathtub 10 in a vertically moving type bathing device 100 vertically moves the bathtub 10 by allowing a bathtub vertically moving circuit E' to function by forcedly unlocking an interlock means IR, which validates the circuit E' of the bathtub 10 only when there is a mounting signal (i) from a means for confirming whether the stretcher 40 is mounted to the stretcher table 20 or not, by an interlock unlocking signal (e) manually operated at the time of the absence of the signal (i). Thus, the vertically moving bathtub can vertically moved to an optimal height for work at the time of preparing work before bathing or cleaning work of the inside of the bathtub after bathing to improve various kinds of working efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention lays down a person with physical disability who cannot take a bath by himself on a special stretcher,
The present invention relates to a bath apparatus for taking a bath together with a stretcher, and more particularly to an interlock releasing method and a device for temporarily enabling a raising / lowering movement of a bathtub even when the stretcher is not on a lifting platform of a lifting bath apparatus.

[0002]

2. Description of the Related Art Conventionally, there has been provided an elevating type bathing apparatus in which a person with physical handicap who cannot take a bath on his own is bathed on a dedicated stretcher. This elevating type bathing apparatus includes an elevating bath, a stretcher stand fixed so as to be located in the bath when the bath is raised, and driving means for raising and lowering the elevating bath, and moving the bath to a lower limit position. When lowered, the bather is transferred from the laid side stretcher to the stretcher with the stretcher or vice versa.

[0003] The above elevating bath apparatus is premised on lowering the bathtub to the lower limit position when transferring the litter between the litter and the litter. Otherwise, the stretcher will hit the edge of the bathtub above the stretcher stand. Therefore, when the stretcher is transferred to and from the stretcher stand, the bathtub is raised due to an erroneous operation, causing a problem that the bathtub edge and the stretcher are damaged. As a safety device for preventing this problem, various systems and techniques are provided as seen in Japanese Utility Model Laid-Open No. 2-143936 and Japanese Utility Model Laid-Open No. 5-52829.

In Japanese Utility Model Laid-Open No. 2-143936 and Japanese Utility Model Laid-Open No. 5-52829, when transferring a stretcher from a stretcher to a stretcher stand, the lifting bath is lowered to a lower limit position, and the stretcher is slid in this state. At this time, the lifting circuit that raises the lifting cylinder of the lifting / lowering tub cannot be operated until the stretcher is mounted at the proper position on the litter stand, and the lifting / lowering tub is not raised even if the tub raising switch is operated by mistake. Has become.

[0005]

However, the above elevating type bathing apparatus is intended to move the bathtub up and down to an optimum height for the work during preparation work before bathing or cleaning work inside the bathtub after bathing. There is a request to say. During the preparation and cleaning operations, the stretcher is not placed on the stretcher stand, so that the safety device operates and the bathtub cannot be moved up and down. Therefore, during the above-mentioned preparation work and cleaning work, the work of putting the stretcher on the litter stand interferes with the work, and such a use form is not considered, and the preparation work and cleaning work can be performed satisfactorily. There is a problem that there is no.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to temporarily release a safety device in preparation work and cleaning work when a stretcher is not mounted on a stretcher stand. It is an object of the present invention to provide an interlock release method and an apparatus therefor.

[0007]

According to a first aspect of the present invention, there is provided a method for releasing an interlock of an elevating bathtub in an elevating type bathing apparatus, comprising the steps of: Only when there is, the interlock means for validating the bathtub elevating circuit of the elevating bathtub is forcibly released by an interlock release signal which is manually operated when there is no mounting signal, and the bathtub elevating circuit is operated to move up and down The bathtub is moved up and down.

According to a second aspect of the present invention, there is provided a method for releasing an interlock of an elevating bath in an elevating bath apparatus, wherein the locking function of the interlock means is released. After the bathtub elevating circuit is activated in the state, the lock function of the interlock means is invalidated, and the elevating bathtub can be raised and lowered.

Further, the interlock release device of the elevating bath in the elevating bathing device according to the third aspect outputs a bathtub elevating circuit for moving the elevating bathtub up and down and a mounting signal indicating whether or not the stretcher is mounted on the stretcher stand. Checking means, an interlock means for enabling the bathtub elevating circuit only when there is a mounting signal from the checking means, and an interlock release signal which is manually operated when the mounting signal is absent for the interlock means. And a manual release unit forcibly released.

Further, the interlock releasing device for the elevating bath in the elevating bath device according to claim 4 is the interlock releasing device for the elevating bath bath in the elevating bath device according to claim 3. Magnet bases with two equal components of the Gaussian curve of the vertical component are arranged at the bottom of the stretcher, and the two magnetic sensors that simultaneously sense the vertical components of the magnetic flux density at the two locations of the magnet base are parallel to the stretcher moving direction. It is characterized by being arranged on a stretcher stand.

[0011]

According to the first aspect, when the stretcher is not mounted on the stretcher base, the interlock means is forcibly released by an interlock release signal which can be manually operated, and the bathtub elevating circuit functions to freely raise and lower the elevating bathtub. Moved. Thus, during preparation work before bathing or cleaning work inside the bathtub after bathing, the elevating bathtub can be moved up and down to an optimum height for work, and various work efficiency can be improved.

According to the second aspect, after activating the bathtub elevating circuit in a state where the lock function of the interlock means is released, the elevating bathtub can be raised and lowered even if the lock function of the interlock means is invalidated. Can operate. This simplifies the elevating operation of the elevating tub when the stretcher is not mounted on the stretcher stand.

According to a third aspect of the present invention, there is provided a bathtub elevating circuit for moving the elevating bathtub up and down, a checking means for outputting a mounting signal indicating whether or not the stretcher is mounted on the stretcher stand, and a mounting signal from the checking means. An interlock means for validating the bathtub elevating circuit only when there is provided, and a manual release means forcibly released by an interlock release signal which is manually operated even when there is no mounting signal for the interlock means. ,
Even when the stretcher is not mounted on the stretcher base, the interlock means is forcibly released by the manually operated interlock release signal, and the bath tub elevating circuit functions so that the elevating bath can be freely moved up and down.

According to the fourth aspect, the operating region in which the two magnetic sensors simultaneously perform the ON operation can be narrowed, and the stop position of the stretcher on the stretcher stand can be more accurately confirmed. Furthermore, the mounting signal from the confirmation means is reliably transmitted to the bathtub elevating circuit, and the interlock release function is further ensured.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 is a front view of the elevating bathing apparatus of the present invention, and FIG. 2 is a plan view of the elevating bathing apparatus of the present invention. 3 and 4 are cross-sectional views of the stretcher checking means.
Shows operation diagrams of the confirmation means.

Elevating bath apparatus 100 employed in the present invention
1 will be described with reference to FIGS. The overall configuration of the elevating bathing apparatus 100 includes a base body 1, an elevating bathtub 10 disposed outside the base body 1, and a stretcher stand fixed on the post P so as to be located in the bathtub when the bathtub is raised. 2
0, and a pantograph type driving means (oil pump OP and lifting cylinder C) for raising and lowering the lifting bath 10. A main operation unit So is provided on the upper surface of the elevating bath 10. The main operation unit So has power ON / OFF.
Switch "S1" which raises the elevating bathtub 10 to the ascending limit position H (indicated by a two-dot chain line), and "bath switch S3" which lowers the elevating bathtub 10 to the descent limit position L. And a "bubble switch S4" for generating bubbles when taking a bath. Therefore, when the bathing switch S3 is turned ON to lower the elevating tub 10 to the lower limit position L, the bather MA is transferred together with the stretcher 40 from the sideways stretcher 30 to the stretcher stand 20, or conversely. It can be transferred from the stretcher stand 20 to the stretcher 30 side.

As shown in FIGS. 3 and 4, the stretcher 40 moves on rails 20A and 20A of the stretcher stand 20 and is positioned and locked at a predetermined position (center position) O by a stretcher stopper R. ing. The stretcher 40 is the stretcher base 20
Is determined by the confirmation means K. The confirmation means K is provided on the bottom frame 40A of the stretcher 40.
Next, the magnet base M from which the equal Gaussian curve of the vertical component of the magnetic flux density is obtained at two places is arranged. Further, the two magnetic sensors MS1 and MS2 are arranged on a mounting body 20B on the gantry 20 parallel to the gantry moving direction. Thus, the two magnetic sensors MS1 and MS2 can simultaneously sense the vertical component between the two nearly perpendicular magnetic flux densities B1 and B2 of the magnet base M. Note that three magnetic bodies M1, M2, and M3 are attached to the magnet base M so that the directions of the magnetic fluxes B1 and B2 are the same. By employing the checking means K, the stop position O 'of the stretcher 40 is detected more accurately.

Next, an electric control unit E for controlling the operation of the elevating bath apparatus 100 of the present invention and the interlock release apparatus 200 will be described with reference to FIG. The electric control unit E and the interlock release device 200 are, for example, logic circuits including a sequencer and a relay circuit, and will be functionally described with reference to a block diagram. First, the AC 100 volt power supply starts and stops the rectifier D by turning on and off the power switch S1, and supplies DC power to the electric control unit E. The electric control unit E has a function of starting / stopping the blower BW with the bubble switch S4 and a bathtub control circuit E ′ that raises and lowers the elevating bathtub 10 by turning on the bathing switch S2 and lowers it by turning on the bathing switch S3. Is provided with an interlock means IR in the bath control circuit E 'for making the bathtub control circuit E' effective when there is a stretcher mounting signal i from the checking means K.

The interlock means IR is constituted by an AND element of a bathing switch S2 or a bathing switch S3 and a checking means K. Further, a bathtub control circuit E '
The manual release means (interlock release switch) S5 outputs an interlock release signal e for enabling manual operation of the interlock means IR even if the stretcher mounting signal i is not present and the interlock state is established. It has a function to release the interlock in response to a command from. This interlock release function is to act as if there is a stretcher mounting signal i by the interlock release signal e even without the stretcher mounting signal i. That is, the circuit is configured to operate with the OR element of the stretcher mounting signal i and the interlock release signal e with respect to the bathtub control circuit E ′.

The present invention is configured as in the first embodiment, and the interlock release device 20 for the elevating bathtub 10 provided in the electric control unit E in the elevating bathing device 100 is provided.
According to the configuration of 0, the interlock release method is executed as follows. First, normally, when transferring the stretcher 40 from the stretcher 30 to the stretcher stand 20, the bathing switch S3 is pressed to lower the elevating bath tub 10 from the upper limit position H to the lower limit position L, and the stretcher 40 is slid in this state. . At this time, the stretcher 40 is positioned at the regular position O on the stretcher base 20.
Until the lifting cylinder C of the elevating tub 10 cannot be raised until the elevating bath tub 10 is mounted, the elevating tub 10 functions so as not to be raised even if the elevating bath tub 10 is operated by mistake to operate the ascending bath switch S2. Exhibits the bathtub interlock function.

That is, the interlock function of the interlock means IR is provided by the bathing switch S2 or the bathing switch S3.
And an AND element of the stretcher mounting signal i of the confirmation means K, the absence of the stretcher mounting signal i acts to bring the interlock state.

Confirmation of the stretcher 40 on the stretcher stand 20 is as follows.
The operating area in which the two magnetic sensors MS1 and MS2 are simultaneously turned on is narrowed, and the stop position O ′ of the stretcher 40 on the stretcher stand 20 is accurately confirmed. Thereby, the mounting signal i from the confirmation means K is reliably transmitted to the bathtub elevating circuit E ', and the interlock function of the elevating bathtub 10 is ensured.

Subsequently, when cleaning the elevating tub 10, even if the stretcher 40 is not set on the gantry 20 in the tub, the bathtub can be raised or lowered so that the elevating tub 10 can be raised or lowered. Switch S3 and interlock release switch S
And 5 are operated simultaneously. While the interlock release switch S5 is pressed, the interlock function is released, and the raising / lowering bathtub 10 can be raised or lowered by using the bathing switch S3 together.

As described above, the elevating type bathing apparatus 10 of the present invention is used.
According to the lifting / lowering bathtub interlock release device 200 at 0, the following effects are obtained. First, the stretcher 40 is the stretcher base 2
When it is not installed in the bathtub 0, the interlock means IR is forcibly released by an interlock release signal e which can be manually operated, and the bathtub lifting / lowering circuit E 'is operated to freely move the lifting / lowering bathtub 10 up and down. During preparation work and cleaning work in the bathtub after bathing, the elevating bathtub can be moved up and down to an optimum height for the work, and various work efficiency can be improved.

Further, by simultaneously turning on the two magnetic sensors MS1 and MS2, the working area is reduced, and the stop position O 'of the stretcher on the stretcher can be more accurately confirmed. Further, the mounting signal i from the confirmation means K is reliably transmitted to the bathtub elevating circuit E ', and the interlock release function is further ensured.

The above is an introduction of the first embodiment of the present invention, and the present invention is not limited to this embodiment, and can be modified within the scope of the present invention. For example, as another interlock release method and apparatus 300, as in the second embodiment shown in FIG.
After the lock function of the interlock means IR is released by the interlock release switch S5 and the bathtub elevating circuit E 'is activated by the bath switch S3, the lock function is invalidated even if the interlock release switch S5 is released. age,
The elevating tub 10 is moved out of the bath switch S3 or bath switch S2.
It is possible to move up and down by only operation.

That is, a descent sensor S6 for detecting the descent limit position L of the elevating bathtub 10 is disposed on the base body 1, and this descent sensor (bath end limit switch) S6 determines the descent limit position L of the elevating bathtub 10. ON signal (O
The interlock release signal e from the bathing switch S3 is replaced by e2, which may be an FF signal. Then, the bath switch S3 and the interlock release switch S5
After activating the bathtub elevating circuit E ', the lock function is invalidated even if the interlock release switch S5 is released, and the elevating bathtub 10 can be raised and lowered by operating only the bathing switch S3 or the bathing switch S2. The bathtub elevating circuit E
Is configured as a circuit. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.

As a result, the elevating bathtub 10 starts moving and the descent sensor (bath end limit switch) S6 is turned off (open).
After confirming the above, even if the interlock release switch S5 is released, control is performed so that the raising / lowering bathtub 10 can be raised or lowered by operating only the lifting / lowering switches S2 and S3. The function is such that when the interlock release switch S5 is pressed, the interlock release function is held in a circuit, and the interlock release function is maintained even when the interlock release switch S5 is released.

As described above, the elevating bathing apparatus 10 of the present invention is used.
According to the second embodiment of the lifting / lowering bathtub interlock release device 300 at 0, the following interlock release method is effective. After activating the bathtub elevating circuit in a state where the lock function of the interlock means is released, even if the lock function of the interlock means is enabled, the elevating bathtub can be operated so as to be able to move up and down, so the stretcher is mounted on the stretcher stand. The lifting operation of the lifting tub when not being performed is simplified.

[0030]

According to the first aspect of the present invention, even when the stretcher is not mounted on the stretcher stand, the interlock means is forcibly released by the manually operated interlock release signal, and the bathtub elevating circuit functions. The lifting tub can be moved up and down freely, so that the lifting tub can be moved up and down to the optimum height for work during preparation work before bathing and cleaning work inside the bath tub after bathing, thus improving work efficiency. There is.

According to the second aspect of the present invention, after the bathtub elevating circuit is activated in a state where the locking function of the interlock means is released, the elevating bathtub is raised and lowered even if the locking function of the interlock means is invalidated. Since the operation can be performed as much as possible, an effect that the raising / lowering operation of the raising / lowering bathtub when the stretcher is not mounted on the stretcher stand can be easily performed is exhibited.

According to the third aspect of the present invention, even when the stretcher is not mounted on the stretcher base, the interlock means is forcibly released by an interlock release signal which is manually operated, and the bathtub elevating circuit functions to function as the elevating bathtub. Can freely move up and down,
During preparation work before bathing and cleaning work inside the bathtub after bathing, there is an effect that the elevating bathtub can be moved up and down to an optimum height for the work.

According to the fourth aspect of the present invention, the operating area where the two magnetic sensors are simultaneously turned ON is narrowed, and the stop position of the stretcher on the stretcher can be more accurately confirmed. Furthermore,
The mounting signal from the confirmation means is reliably transmitted to the bathtub elevating circuit, and this has the effect of making the interlock release function more reliable.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an elevating type bathing apparatus of the present invention.

FIG. 2 is an overall plan view showing the elevating bathing apparatus of the present invention.

FIG. 3 is a plan view of a stretcher checking means arranged on the stretcher stand.

FIG. 4 is a side view of the elevating type bathing apparatus and an enlarged sectional view of the checking means.

FIG. 5 is a layout diagram of two magnets and a sensor attached to the bottom of a stretcher.

FIG. 6 is a block diagram of an electric control unit according to the first embodiment of the present invention.

FIG. 7 is a block diagram of an electric control unit according to a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Base main body 10 Elevating bathtub 20 Stretcher 30 Stretcher 40 Stretcher E Electric control part E 'Bathtub control circuit IR Interlock means i Stretcher attaching signal e Interlock release signal e2 ON signal (OFF signal) K Confirmation means MA Bather M1 , M2, M3 Magnets MS1, MS2 Magnetic sensor S1 Power switch S2 Bath switch S3 Bath switch S4 Bubble switch S5 Interlock release switch (manual release means) S6
Lowering sensor (bath end limit switch) L Lowering limit position H Rising limit position 100 Elevating bathing device 200, 300 Interlock release device

Claims (4)

[Claims] 1. An interlock means for activating a bathtub elevating circuit of an elevating bathtub only when there is a mounting signal from a means for checking whether or not a stretcher is mounted on a stretcher stand. A method of releasing an interlock of a lifting / lowering bathtub in a lifting / lowering type bathing apparatus, wherein the lifting / lowering bathtub is raised / lowered by operating the bathtub lifting / lowering circuit so as to be forcibly released by an interlock release signal which is manually operated. 2. The interlock releasing method for an elevating bathtub in the elevating bathing apparatus according to claim 1, wherein the interlock is activated after activating the bathtub elevating circuit with the locking function of the interlock means being released. A method of releasing an interlock of an elevating bath in an elevating bath apparatus, wherein a lock function of the means is invalidated and the elevating bath is movable up and down. A bathtub elevating circuit for moving the elevating bathtub up and down; checking means for outputting a mounting signal indicating whether or not the stretcher is mounted on the stretcher stand; and bathtub elevating only when there is a mounting signal from the checking means. An interlock means for validating a circuit; and a manual release means forcibly released by an interlock release signal which is manually operated when there is no attachment signal to the interlock means. An interlock release device for the elevating bathtub in a bathing system. 4. An interlock release apparatus for a lifting bathtub in a lifting bath apparatus according to claim 3, wherein said confirmation means comprises a magnet base at which two equal Gaussian curves of a vertical component of magnetic flux density are obtained at the bottom of the stretcher. And two magnetic sensors for simultaneously detecting the vertical components of the magnetic flux density at two places of the magnet base are arranged on the stretcher so as to be parallel to the stretcher moving direction. Interlock release device for lifting tubs.