JP5815053B2 - Bathing elevator - Google Patents

Description

  The present invention relates to a bathing lift device for bathing care recipients.

  DESCRIPTION OF RELATED ART Conventionally, the bath raising / lowering apparatus which mounts in a bathtub bottom face or a bathtub upper surface and bathes a care recipient is well-known (for example, refer patent document 2, patent document 3).

  Furthermore, as an electric lifting seat chair used in a living room or the like, there is known a chair equipped with a safety switch for stopping the lowering of the seat so as not to pinch the foot in the vicinity of the seat (for example, patent document) 1).

JP 2000-152842 A JP 2002-306564 A JP 2007-312965 A

  However, in the bathing / lifting device, the seat on which the care recipient rides (can move up and down) enters and exits into the hot water stored in the bathtub. Therefore, as described in Patent Document 1, a safety switch is provided near the seat. Those having electric wiring or electrical wiring may cause electric shock and cannot be used for bathing.

  Therefore, in order to avoid electric shock, a safety switch is arranged on the upper part of the fixed frame of the bathing lifting device, and the vertical movement of the detection member provided in the vicinity of the seat is changed to a safety switch via an interlocking member such as a long shaft. Even if transmission is attempted, it is difficult to distinguish between the vertical movement of the detection member and the raising / lowering operation of the seat.

  Therefore, when a foot of a care recipient is sandwiched between the seat of the bathing lifting device and the bottom of the bathtub, an overload that mechanically detects a change in the load applied to the lifting mechanism or motor or electrically detects it A configuration incorporating a detection means is used.

  However, the bathing lifting apparatus using this overload detection means operates after the foot of the care recipient is pinched and the overload detection means operates to stop the lowering of the seat, so that the seat is raised again. During this time, the lifting part including the seat part and the weight of the care recipient continued to be added to the pinched legs, and there was a risk of pain and fractures.

  A bathing lifting apparatus according to the present invention includes a base portion placed in a bathtub, a guide frame body standing on the base section and extending upward, a cursor that can be lifted and lowered along the guide frame body, A seat attached to the cursor, an electric drive device for moving the cursor up and down, and detecting that a part of the body is sandwiched between the seat and the bottom of the bathtub and stopping the descent of the seat Safety means is provided, and the safety means allows the detection member provided on the lower surface side of the seat portion to move in the vertical direction to rotate about the axis of the rotation shaft arranged in parallel to the guide frame. In other words, the safety micro switch provided near the upper end of the guide frame is switched to the seat lowering stop side.

  Further, a base portion placed in the bathtub, a guide frame body standing on the base portion and extending upward, a cursor that can be moved up and down along the guide frame body, and a seat portion attached to the cursor And an electric drive device for raising and lowering the cursor, and safety means for detecting that a part of the body is sandwiched between the seat and the bottom of the bathtub and stopping the descent of the seat, The safety means includes a detection member provided on the lower surface side of the seat portion, a rotary disk attached to the cursor and having a non-circular through hole in the vertical direction, and movement of the detection member in the vertical direction. A conversion mechanism that converts the rotation of the rotating disk, a safety microswitch that is disposed in the vicinity of the upper end of the guide frame and that turns on and off the electric motor of the electric drive device, and the non-circular shape of the rotating disk Sliding up and down relative to the through hole A dog that is inserted and held parallel to the guide frame, and a dog attached to the upper end of the pivot shaft so as to switch the safety microswitch by rotation around the axis of the pivot shaft And configured to transmit a seat part lowering stop signal from the safety microswitch in accordance with the upward movement when the detection member detects that a part of the body has been caught. .

  Further, an upper limit micro switch is provided in the vicinity of the upper end of the guide frame body, and the rotation shaft is held so as to be lifted by a small dimension when the cursor approaches the upper limit position while being raised, and the rotation is performed. As the small dimension of the shaft increases, the upper limit microswitch is switched to the seat rise stop side to stop the lift of the seat.

  When the safety microswitch is always ON and switched from ON to OFF, a signal for stopping and lowering the seat is transmitted via the drive control circuit, and the upper limit microswitch is always OFF and switched from OFF to ON. In other words, the seat raising / lowering signal is transmitted via the drive control circuit.

  According to the present invention, the above-described conventional problems are solved, and there is no electrical component (switch) or electrical wiring in the vicinity of the seat that descends into the hot water of the bathtub, and there is no worry of electric shock. It is safe. Furthermore, the vertical movement of the detection member in the vicinity of the seat is once converted into rotation of the rotating shaft and transmitted to the upper safety micro switch, which is confused with the vertical movement of the lifting part including the seat. It is possible to prevent malfunction of the safety micro switch. In this way, accurate and downward locking of the seat portion is always performed, and the safety is high, so that a physically weak person (care recipient) can take a bath with peace of mind.

It is a side view which shows embodiment of this invention. It is a rear view. It is a perspective view which shows the principal part. It is a perspective view of a detection member. It is a perspective view of the principal part which shows the state which removed the seat part, the back part, the detection member, etc. from the cursor. It is a perspective view which shows an example of a detection member. It is a side view of a detection member. It is the perspective view seen from the back direction which mainly showed the cursor. It is a perspective view which shows the principal part. It is principal part structure explanatory drawing, Comprising: (A) is a perspective explanatory drawing, (B) is a plane explanatory drawing. It is explanatory drawing which showed the shape of the various planar views of the non-circular through-hole of a turntable, and the cross-sectional shape of the rotating shaft inserted in this non-circular through-hole so that sliding up and down is possible. It is principal part explanatory drawing which shows a rotating shaft, a dog part, a locking piece, etc., (A) is principal part perspective explanatory drawing, (B) is front view principal part explanatory drawing, (C) is planar view principal part description. FIG. It is a principal part top view. It is a principal part perspective view. It is a principal part top view for operation | movement description. It is a principal part rear view. It is a principal part side view which shows a seat part folding state. It is a principal part side view which shows the removal state of a seat part. It is a top view of a motor base etc. in the state where a cover was removed.

Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
As shown in FIGS. 1, 2 and 5, a bathing lifting / lowering apparatus according to the present invention includes a base portion 1 placed in a bathtub (not shown), and is erected on the base portion 1 and extends upward. The fixed base frame part 3 comprised from the guide frame body 2 to be provided is provided. The base portion 1 includes a base portion main body 1A and a leg portion 1B to which the base portion main body 1A is fixed in a mounting shape. The leg portion 1B is a recumbent portion disposed in the left-right direction. 1C and a pair of vertical hooks 1D, 1D arranged in the front-rear direction. Suction cups 4 that can be adsorbed on the bottom surface of the bathtub are attached to both ends of the horizontal flange 1C and the front ends of the vertical flanges 1D.

  The guide frame body 2 has a pair of left and right pillar portions 2A and 2A that are substantially vertical, and specifically, the pillar portions 2A and 2A have an opening groove that opens in the left and right inward directions (see FIG. 8). It has a rail function that guides while rolling the four rollers 6, 6, 6, 6 of the cursor 5.

  The cursor 5 is attached so as to be movable up and down along the guide frame 2 while the rollers 6, 6, 6, 6 are guided by rolling to the pair of pillars 2 A and 2 A of the guide frame 2. A seat 7 is attached to the cursor 5 so as to be freely attached and detached (see FIGS. 17 and 18).

  As shown in FIGS. 1, 2, 3, 17, and 18, the seat portion 7 can be folded and overlapped with the back portion 8 by about 90 °. That is, the seat portion 7 and the back portion 8 are pivotally connected to each other so as to be swingable and foldable around the pivot shaft 9 to constitute the seat portion 10. The seat portion 7 has a pair of metal reinforcing frame members 7A and 7A on the back surface side, and the back portion 8 has a pair of metal reinforcing frame materials 8A and 8A on the back surface (back surface) side. The metal reinforcing frame members 7A and 8A are pivoted by the pivot shaft 9.

  In addition, in the metal reinforcing frame member 8A of the back portion 8, as shown in FIGS. 17 and 18, an inverted J-shaped hook 11 is integrally formed, and a step is formed at a lower position of the hook 11. On the other hand, a pair of upper and lower locking projections 13 and 13 are provided on both side surfaces of the cursor 5, and a hook 11 is provided on the upper side of the projections 13 and 13. And the stepped portion 12 can be locked to the lower one to switch from the removed state (detached state) in FIG. 18 to the attached state (attached state) in FIG.

  And the bathing raising / lowering apparatus which concerns on this invention is an electric drive device 14 for raising / lowering the said cursor 5, and a part (foot etc.) of a care recipient's body between the seat part 7 and the bathtub bottom face. Is provided with safety means S that detects that the seat portion 7 is caught and stops the descent of the seat portion 7.

As shown in FIGS. 1, 2, 3, 4, 9, 12 to 15, and the like, the safety means S includes a vertical direction of a part of the detection member 15 provided on the lower surface side of the seat portion 7. Is converted into a rotation about the axis L ₁₆ (vertical direction) of the rotary shaft 16 arranged in parallel to the guide frame 2, and a safety micro switch provided near the upper end of the guide frame 2 It is configured to switch 17 to the seat lowering stop side.

In other words, the safety means S is rotatable about the vertical axis L ₁₆ around the detection member 15 provided on the lower surface side of the seat portion 7 so as to be swingable around a pivot point 19 (see FIG. 1) and the cursor 5. turntable 21, the axis L ₁₆ around the turntable 21 the vertical movement of the rear end portion 15A of the detecting member 15 while being attached with the vertical (the square, etc.) non-circular through-hole 20 in And a conversion mechanism Y that converts the rotation into the rotation of Furthermore, the safety means S includes a safety microswitch 17 attached to the base board 22 so as to turn on and off the electric motor 23 attached to the motor-like mounting base board 22 fixed to the upper end of the guide frame 2; A rotating shaft 16 that is inserted so as to be slidable relative to the non-circular through hole 20 of the rotating disk 21 and is held in parallel with the guide frame 2, and an axis L ₁₆ around the rotating shaft 16. The dog portion 24 attached to the upper end of the rotating shaft 16 is provided so that the safety micro switch 17 is switched by the rotation. And it is comprised so that the seat part descent | fall stop stop signal may be transmitted from the micro switch 17 for safety with the downward movement of 15 A of back ends when the detection member 15 detects that a part of body was pinched | interposed. doing.

  By the way, the electric drive device 14 will be described. An electric motor 23, and a speed reduction mechanism 25 that reduces the rotational speed of the output shaft of the electric motor 23 and converts the rotational axis of the horizontal output shaft into a vertical axis. A screw shaft 26 linked to the output shaft of the speed reduction mechanism 25; a female screw member 27 that is screwed into the screw shaft 26 and moves up and down by rotation of the screw shaft 26; and a drive control circuit unit that controls the electric motor 23 28, a battery 29, and the like. As shown in FIG. 19, the electric motor 23, the battery 29, and the drive control circuit section 28 are attached to the base board 22 (wiring and the like are not shown in FIG. 19), and are covered with a cover 30 in an airtight state (see FIG. 19). 17, see Figure 18 and Figure 1).

  In FIG. 19, the safety microswitch 17 and the drive control circuit unit 28 are electrically connected to each other by the wiring not shown in the figure. More specifically, “the safety micro switch 17 transmits an ON or OFF signal to the drive control circuit unit 28, and the electric motor is transmitted via the drive control circuit unit 28”. 23 is stopped and the seat is lowered. When the safety microswitch 17 is always ON and switched from ON to OFF, it is desirable to transmit a signal for stopping the lowering of the seat through the drive control circuit 28.

  The lower end (as shown in FIG. 5) of the screw shaft 26 of the electric drive device 14 is rotatably supported at the left and right center of the base body 1A via a thrust bearing or the like, and the upper end (see FIG. 2). As shown, the pair of column portions 2A and 2A are pivotally supported by a cross beam 2B that bridges the column portions 2A and 2A, and are connected to a speed reduction mechanism 25 (described in FIG. 19). Further, as shown in FIG. 8, on the back side of the cursor 5, the left and right side walls 5A and 5A can be rotated around the vertical axis at the center of the left and right of the cross beam member 5B connecting the left and right sides at an intermediate height. A female screw member 27 is pivotally attached.

Hereinafter, the safety means S will be described in more detail.
As shown in FIGS. 3 and 4, the detection member 15 includes left and right rods 15B and 15B made of a pair of left and right round bar-shaped metal members, a detection bar 15C at the front end thereof, and a lateral bridge that bridges the left and right rods 15B and 15B. And both ends of the rear side 15D are pivotally attached to the through holes of the metal reinforcing frame member 7A of the seat 7, and the detection member 15 has the side 15D and through holes. The pivot point 19 is pivotally supported at a pivot point 19 so as to be swingable in the direction of arrow B in FIG. Further, a detection member biasing spring 32 made of a leaf spring piece or the like is attached to the back surface of the seat portion 7, and the free end of the spring 32 is locked to the horizontal bar 15E, and the detection bar 15C at the front end of the detection member 15 is secured. So that the rear end 15A swings upward, so that it swings downward. In other words, the rear end 15A of the detection member 15 moves downward when the detection bar 15C hits a part of the body (such as a foot) and operates upward. In this way, the rear end portion 15A moves in the vertical direction (while swinging).

  A conversion mechanism Y that converts such vertical movement of the rear end portion 15A of the detection member 15 into rotation of the rotating disk 21 will be described. As shown in FIGS. 1, 6, 7 and the like, a slide member 33 is attached to the cursor 5 so as to be slidable up and down. The slide member 33 has a pair of left and right slide shafts 34 and 35 and a horizontal shaft 36 connecting the lower ends thereof, and has a U-shape with a square front view. Then, as shown in FIG. 8, slide shafts 34 and 35 are assembled by being inserted into (four) bearings 37 provided on the upper wall 5C and lower wall 5D of the cursor 5 so as to be vertically slidable.

  6 and 7, a slide stopper 38 is fixed to the lower end of one slide shaft 34, and two block stoppers 39 and 40 are fixed to the vicinity of the upper end with a predetermined interval. A spring 41 is provided.

  As shown in FIGS. 1 and 9, the horizontal shaft 36 contacts the rear end 15 </ b> A of the detection member 15 from above. In order to arrange the front-rear position of the horizontal shaft 36 in front of the slide shafts 34 and 35 (see FIGS. 1, 5 and 9), the slide shaft is connected via connecting shafts 42 and 42 that are inverted L-shaped in side view. Each of the lower ends of 34 and 35 is connected to the horizontal shaft 36.

  As described above, the horizontal shaft 36 at the lower end of the slide member 33 slidably attached to the cursor 5 is simply in contact with the rear end portion 15A of the detection member 15 from above, so that it can be separated. 17, the seat 7 can be easily folded, and the seat 7 and the back 8 can be removed as shown in FIG. 18.

In addition, a joint block 43 is mounted in an outer fitting manner in advance so as to be slidable in the vertical direction (not shown in FIGS. 6 and 7) in the space 34A between the upper and lower block stoppers 39 and 40 shown in FIGS. (See FIGS. 9 and 10). The joint block 43 has a cubic shape, and has a through hole in the vertical direction. When the interval portion 34A of the slide shaft 34 is slidably inserted in the vertical direction and comes into contact with the upper and lower block stoppers 39 and 40, the joint block 43 is Moves when pressed downward and upward. Further, another joint block 45 is pivotally attached to the upper surface of the rotating disk 21 by a pin 44 so as to be rotatable around a vertical axis. Both joint blocks 43 and 45 are connected by two swing links 46 and 46 and bolts 47 and 48. When the joint block 43 is pushed down by the block stopper 39 and moves in the direction of arrow C in FIG. 10, the turntable 21 is moved around the axis L ₁₆ via the joint block 43, the swing link 46, the joint block 45, and the like. Rotate in the direction of arrow D.
On the contrary, when the block stopper 40 is pushed upward in the direction opposite to the arrow C, the turntable 21 rotates in the direction opposite to the arrow D.

As described above, the conversion mechanism Y that converts the vertical movement of the rear end portion 15A of the detection member 15 into the rotation of the rotary disk 21 has the horizontal shaft 36 that contacts the rear end portion 15A from above and the cursor 5. The slide member 33 provided on the slide member 33, the block stoppers 39 and 40 attached (fixed) to the slide shaft 34 of the slide member 33 with a predetermined vertical spacing, and the space 34A between the upper and lower block stoppers 39 and 40 With the joint block 43 fitted, the joint block 45 pivotally mounted on the upper surface of the turntable 21 around the vertical axis, and the swing links 46, 46 etc. for interlockingly connecting the joint blocks 43, 45 Configured.
Note that the coil spring 41 is also included in the conversion mechanism Y, and the horizontal shaft 36 always abuts against the rear end 15A of the detection member 15 by the downward elastic urging force of the coil spring 41.

In the embodiment shown in FIGS. 10, 12 and 11A, the shape of the through hole 20 of the turntable 21 is a square, and the rotary shaft 16 inserted through the through hole 20 is slidable up and down. The cross-sectional shape of the insertion portion 16A is also square. Rotation operation of the rotating disk 21 is converted into rotational motion of the axis L ₁₆ around the pivot shaft 16, so that rotational torque is transmitted from the rotary disc 21 to the rotating shaft 16, in addition to FIG. 11 (A) The hexagonal shape shown in FIG. 11B, the oval shape shown in FIG. 11C, and the L shape shown in FIG.
Alternatively, as shown in FIG. 11 (E), the rotation shaft 16 (insertion portion 16A) can be U-shaped (channel shape), and the through-hole 20 can be square (rectangular).
In any case, the through hole 20 is non-circular, and the cross-sectional shape of the rotating shaft 16 (insertion portion 16A) is also non-circular.

Next, the rotation shaft 16 is specifically illustrated in FIG. The rotating shaft 16 is fixed by externally fitting a tubular body 50 having a square cross section at an intermediate portion except for the upper and lower ends of the circular rod-like body 49, and the tubular body 50 serves as the insertion portion 16A.
As shown in FIG. 12, the protruding portion 51 of the circular rod-like portion 49 that protrudes slightly downward from the lower end of the rectangular tube 50 is inserted into the hole of the base portion main body 1A shown in FIGS. It is rotatably held in a vertical shape axis L ₁₆ around.

The upper end 49A of the circular rod-shaped portion 49 extending upward from the rectangular tube 50 is inserted into the bottom wall of the base board 22 or the hole of the mounting plate 52 fixed to the bottom wall and is rotatably held. (See Figure 16).
As shown in FIGS. 12 to 16, the dog portion 24 is fixed to the upper end of the rotating shaft 16 --- the upper end 49 A of the circular rod-like portion 49. The dog portion 24 is formed of a bent plate piece, and the distal end has an engaging recess 53 as a cam shape. Also, a dog unit 24, the interlocking block 54 to rotate in a vertical shape axis L ₅₄ around between safety microswitch 17 is interposed, the dog portion 24 as M ₁ in FIG. 13 is swung, one corner of the cube-shaped interlocking block 54 is swung as indicated by the arrow M ₂ while engaged with the engaging recess 53, the oN state by pressing the contacts of the safety microswitch 17.

On the other hand, when the dog unit 24 as indicated by the arrow N ₁ in FIG. 15 is swung in the opposite direction, the interlocking block 54 is in a position swung to the arrow N _2, released from contact of safety microswitch 17 Thus, the safety microswitch 17 is turned off.
By the way, the interlocking block 54, the joint block 43, and the joint block 45 described above can be shared in the same shape.

Next, the cursor upper limit stop mechanism X that regulates the upper limit position of the cursor 5 will be described. That is, the present invention includes a cursor upper limit stop mechanism X.
Near the upper end of the guide frame 2, specifically, an upper limit microswitch 55 is provided on the mounting plate 52 on the base board 22. As shown in FIGS. 13 to 15, the contact terminal of the upper limit micro switch 55 is disposed at a position partially overlapping the upper end surface 56 of the rotating shaft 16 in plan view.

  Further, when the cursor 5 rises and approaches the upper limit position (see FIG. 9), the rotation shaft 16 is held so that it can be raised by a small dimension. As shown in FIG. 12, the locking piece 57 is attached to the intermediate position of the rotation shaft 16 so as to protrude, and when the cursor 5 is lifted a little further from the rising position shown in FIG. Abutting (locking) the piece 57, the locking piece 57 is slightly lifted. Thereby, the rotation shaft 16 is raised by a small dimension, the upper end surface 56 operates the contact terminal of the upper limit micro switch 55, and sends a signal to stop the electric motor 23 via the drive control circuit unit 28, The raising of the cursor 5 and the seat 7 is stopped.

It is desirable that the upper limit micro switch 55 is always OFF, and when the upper limit micro switch 55 is switched from OFF to ON, a seat raising stop signal is transmitted via the drive control circuit 28.
Note that, in the illustrated embodiment, the upper end surface 56 of the rotating shaft 16 is used as the part to be brought into contact with the contact terminal of the upper limit micro switch 55, but instead of this, a component attached to the upper end of the rotating shaft 16 ──For example, it can be freely configured with a boss portion of the dog portion 24, etc. (not shown).

The rotation shaft 16 can switch the safety micro switch 17 via the dog portion 24 and the upper limit micro switch 55 via the upper end surface 56 and the like. It is also used for switching the switches 17 and 55 to simplify the structure and make it more compact.
In FIGS. 1 and 2, reference numeral 60 denotes a bellows cover which is vertically extendable and protects the internal screw shaft from hot water and steam.

  Explaining how to use and operate the above bathing lifting device, the caregiver operates an operation switch (not shown) to adjust the height position of the seat 7 near the upper end surface of the bathtub, Sit on the seat 7. Next, when the operation switch is operated to lower the seat portion 7, the seat portion 7 approaches the bathtub bottom surface, the detection bar 15C at the tip of the detection member 15 contacts the bathtub bottom surface, and the detection member 15 is a pivot point. Swing around 19 and the rear end 15A moves downward. Since the horizontal shaft 36 of the slide member 33 is in contact with the rear end portion 15A from above by the elastic biasing force of the coil spring 41, the slide member 33 is lowered as the rear end portion 15A is lowered. . As the slide shaft 34 of the slide member 33 is lowered, the joint block 43 is also lowered, and the turntable 21 is rotated in the direction of arrow D via the swing link 46 and the joint block 45 shown in FIGS.

  A rotational torque is applied to the non-circular rotating shaft 16 (insertion portion 16A) inserted through the non-circular through hole 20 of the rotating plate 21, and the rotating shaft 16 rotates together with the rotating plate 21, and the dog portion at the upper end thereof. 24 swings (rotates) from the state shown in FIG. The safety microswitch 17 is switched from the ON state in FIG. 13 to the OFF state in FIG. The ON / OFF signal from the safety micro switch 17 is sent to the drive control circuit section 28 in FIG. 19, and the seat section lowering stop signal is transmitted from the circuit section 28 to the electric motor 23, and the lowering of the seat section 7 is stopped. To do.

  By the way, when a part of the cared person's body (such as a foot) is sandwiched between the seat 7 and the bottom of the bathtub while the seat 7 is descending, the detection bar 15C moves upward around the pivot point 19. And the descent of the seat portion 7 is stopped in the same manner as the contact with the bathtub bottom described above. At this time, the force applied to a part of the cared person's body (foot, etc.) is a light force of only the coil spring 41 (see FIGS. 6 and 7), and the cared person feels a strong pain or is injured. I don't have to.

  When bathing is completed, the assistant operates the operation switch to raise the seat 7. When the seat 7 continues to rise and the height is near the upper end surface of the bathtub, if the assistant releases the hand from the operation switch, it stops there.

  When the assistant keeps pressing the operation switch while the seat portion 7 is raised, the upper surface of the rotating disk 21 attached to the cursor 5 comes into contact with the protruding locking piece 57 of the rotating shaft 16, and the rotating shaft 16 A little lifted. By this lifting, the upper end surface 56 of the rotating shaft 16 (or a part of the member fixed to the rotating shaft 16 such as the dog portion 24) switches the upper limit micro switch 55, and the drive control circuit unit 28 is switched by the signal. Then, a signal for stopping the electric drive device 14 (electric motor 23) is transmitted to stop the raising of the seat portion 7.

  As described above, the present invention converts the rotary motion of the rotary shaft 16 into the rotary motion of the rotary shaft 16 in the bathing lifting device in which the vertical movement of the seat portion 7 and the cursor 5 is mainly performed, so By transmitting to the micro switch 17 for use, it is possible to prevent a malfunction (when the vertical movement of the detection member 15 is transmitted as it is by a member extending in the vertical direction) and to secure safety.

  Further, the lowering of the seat portion can be stopped with a light load that swings the detection member 15 that hits the care receiver's foot, etc., and pain can be prevented from being applied to the foot, etc., and bathing can be performed comfortably and safely. In addition, since the rotation shaft 16 is used for both the function of preventing the cared person's foot from being pinched by the seat part descending stop and the function of the seat part ascending / stopping, the structure of the device is simplified and made compact, And cost reduction can be aimed at.

  Further, when the safety micro switch 17 is always ON and switched from ON to OFF, a signal for stopping the seat lowering is transmitted via the drive control circuit 28, and the upper limit micro switch 55 is always OFF and from OFF. Since it is configured to transmit a signal for stopping and raising the seat through the drive control circuit 28 when switched to ON, even if the signal is not transmitted due to destruction of the safety micro switch 17 or disconnection, etc. The seat portion 7 does not descend in preparation and is safe. In addition, even when the signal is not transmitted due to destruction or disconnection of the upper limit micro switch 55, the seat 7 can be raised, and the cared person can be rescued from the bathtub.

1 Base 2 Guide frame 5 Cursor 7 Seat
14 Electric drive
15 Detection member
16 Rotating axis
17 Safety micro switch
20 Non-circular through hole
21 Turntable
23 Electric motor
24 dog club
28 Drive control circuit
55 Upper limit micro switch S Safety measure L ₁₆ axis Y conversion mechanism

Claims (4)

A base part (1) placed in the bathtub, a guide frame (2) standing on the base part (1) and extending upward, and a cursor capable of moving up and down along the guide frame (2) (5), a seat (7) attached to the cursor (5), an electric drive device (14) for moving the cursor (5) up and down, and between the seat (7) and the bottom of the bathtub A safety means (S) for detecting that a part of the body is caught in the body and stopping the descent of the seat (7),
The safety means (S) is configured so that the vertical movement of the detection member (15) provided on the lower surface side of the seat (7) is a rotation shaft (16) arranged in parallel to the guide frame (2). ) Around the shaft center (L ₁₆ ), and the safety micro switch (17) provided near the upper end of the guide frame (2) is switched to the seat lowering stop side. Bathing lift device characterized by. A base part (1) placed in the bathtub, a guide frame (2) standing on the base part (1) and extending upward, and a cursor capable of moving up and down along the guide frame (2) (5), a seat (7) attached to the cursor (5), an electric drive device (14) for moving the cursor (5) up and down, and between the seat (7) and the bottom of the bathtub A safety means (S) for detecting that a part of the body is caught in the body and stopping the descent of the seat (7),
The safety means (S) is rotatably attached to the detection member (15) provided on the lower surface side of the seat (7) and the cursor (5), and the noncircular through hole (20) in the vertical direction. Near the upper end of the guide frame (2), a conversion mechanism (Y) that converts the vertical movement of the detection member (15) into rotation of the rotary disk (21) Relative to the safety microswitch (17) that is disposed and that turns the electric motor (23) of the electric drive device (14) on and off, and the noncircular through hole (20) of the rotating disk (21) The rotary shaft (16) inserted in the vertical direction and held parallel to the guide frame (2), and the rotation of the rotary shaft ( ₁₆ ) around the axis (L ₁₆ ) A dog portion (24) attached to the upper end of the pivot shaft (16) so as to switch the safety microswitch (17);
A seat lowering stop signal is transmitted from the safety microswitch (17) in accordance with the upward movement when the detection member (15) detects that a part of the body has been caught. Bathing lifting device characterized by that.   An upper limit micro switch (55) is provided in the vicinity of the upper end of the guide frame (2), and the pivot shaft (16) is small in size when the cursor (5) moves up and approaches the upper limit position. The upper limit micro switch (55) is switched to the seat rise stop side to stop the rise of the seat (7) as the small dimension of the pivot shaft (16) rises. The bathing raising / lowering device according to claim 1 or 2, which is configured as described above.   When the safety microswitch (17) is always ON and switched from ON to OFF, a signal for stopping the seat descent is sent via the drive control circuit (28), and the upper limit microswitch (55) is always 4. The bathing elevator apparatus according to claim 3, wherein a signal for stopping and raising the seat is transmitted via the drive control circuit section (28) when switching from OFF to ON as OFF.

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