JP4475590B2 - Handrail for bathtub - Google Patents

Description

  The present invention relates to a handrail for a bathtub for an elderly person or a physically handicapped person to hold and support the body when entering or leaving the bathtub.

  Patent Document 1 discloses a bathtub handrail that includes a downward U-shaped sandwiching member that sandwiches the upper end portion of the side wall of the bathtub from inside and outside, and a grip portion that is erected on the sandwiching member. After this bathtub handrail is clamped and fixed at the upper end of the side wall of the bathtub with a clamping member, an elderly person or the like grabs the gripping member and enters and exits the bathtub. In this bathtub handrail, if the sandwiching of the side wall of the bathtub by the sandwiching member is insufficient, there is a possibility that the gripping member may roll and come off from the side wall of the bathtub.

  On the other hand, Patent Documents 2 and 3 disclose a handrail for a bathtub that is stretched and fixed between a ceiling of a bathroom and an upper surface of a side wall of the bathtub. In this bathtub handrail, a fitting recess for detachably fitting and fixing the lower end of the bathtub handrail is provided on the upper surface of the side wall of the bathtub, and the bathtub handrail is provided on the ceiling of the bathroom. A rail is provided to support the upper end in a slidable manner.

Japanese Patent Laying-Open No. 2005-95492 (FIGS. 1-4) Japanese Patent Laid-Open No. 10-25874 (FIG. 1) Japanese Patent Laid-Open No. 10-80452 (FIG. 4)

  The handrails for bathtubs of Patent Documents 2 and 3 do not come off from the side walls of the bathtub even when they are grabbed when entering and exiting the bathtub, but it is necessary to provide the fitting recess and the like in the bathtub. The bathtub cannot be used as it is. Therefore, there is a problem in that the cost required for arranging the handrail for bathtub is increased.

  Then, the objective of this invention is providing the handrail for bathtubs which can be fixed to the side wall of a bathtub firmly while using a general bathtub as it is, and being removable.

  As shown in FIG. 1, the handrail for bathtubs according to the present invention includes a downward U-shaped sandwiching member 3 for sandwiching the side wall 2 of the bathtub 1, and a vertically extending and retractable support member erected on the sandwiching member 3. It includes a big stick member 5 and a gripping member 6 provided on the big stick member 5. The upper end portion of the sticking bar member 5 is pressed against the ceiling 11 of the bathroom 10 and received, so that the sticking bar member 5 stretches and fixes the holding member 3.

  Specifically, as shown in FIGS. 1 and 2, the stick member 5 has a lower large diameter pipe 7 whose lower end is fixed to the holding member 3, and is slidable up and down with respect to the large diameter pipe 7. The upper small diameter pipe 9 to be fitted, the ceiling receiving member 12 disposed on the upper end of the small diameter pipe 9 and received by the ceiling 11 of the bathroom 10, and the ceiling receiving member 12 are pressed against the ceiling 11 of the bathroom 10. Spring means 15 for receiving the repulsive force at the time of hitting. Between the large-diameter pipe 7 and the small-diameter pipe 9, there is provided a locking tool 13 for holding the small-diameter pipe 9 so that the small-diameter pipe 9 cannot be moved up and down.

  As shown in FIG. 9, the clamping member 3 has a fixture 60 to which the lower end portion of the large-diameter pipe 7 is fixed, and a movable tool 61 that can slide in and out of the bathtub 1 with respect to the fixture 60. The side wall 2 of the bathtub 1 is sandwiched between the fixing tool 60 and the movable tool 61. The fixture 60 includes a straddling portion 62 positioned on the upper side of the side wall 2 of the bathtub 1 and a hanging portion 63 that extends downward from the straddling portion 62 and faces the outer surface of the side wall 2 of the bathtub 1. The movable tool 61 has a guide rod 67 that faces the inner surface of the side wall 2 of the bathtub 1 and extends toward the fixture 60, and the guide rod 67 is inserted into a guide hole 69 formed in the movable tool 61 of the fixture 60. The movable tool 61 is movable by being inserted, and the long bolt 71 is provided on the guide rod 67 of the movable tool 61 through the bolt through hole 69 a provided in the back wall of the guide hole 69. The fixing tool 60 and the movable tool 61 are connected by being tightened in the screw hole 72, and the side wall 2 of the bathtub 1 is sandwiched between the fixing tool 60 and the movable tool 61.

  The movable member 61 is provided with a rocking plate 76 via a universal joint 75, and when the side wall 2 of the bathtub 1 is sandwiched between the fixing tool 60 and the movable tool 61, the rocking plate 76 is attached to the bathtub 1. It pushes in the attitude | position along the inner surface of the side wall 2.

  An air valve mechanism is arranged at the lower end of the small-diameter pipe 9, and the air valve mechanism includes a valve seat 83 that closes the lower end opening of the small-diameter pipe 9, and a through hole provided in the valve seat 83, as shown in FIG. 85, a valve shaft 86 inserted through the valve shaft 86, spring means 87 for biasing the valve shaft 86 upward, and a valve body 89 fixed to the lower end of the valve shaft 86. When the small diameter pipe 9 is lowered, the valve body 89 is in close contact with the lower surface of the valve seat 83 by the urging force of the spring means 87, and when the small diameter pipe 9 is raised, the urging force of the spring means 87 is provided. The valve body 89 is pushed down against this.

  According to the present invention, the side wall 2 of the bathtub 1 is sandwiched by the sandwiching member 3 so that it can be attached to the side wall 2. Can be used as they are, and the cost required for arranging the handrail for the bathtub can be suppressed. Moreover, since the holding member 3 is stretched and fixed by the sticking bar member 5, the holding member 3 is detached from the side wall 2 of the bathtub 1 even if the holding member 6 or the sticking bar member 5 is grasped in order to enter and exit the bathtub 1. There is nothing. That is, the handrail for the bathtub can be firmly fixed to the side wall 2 of the bathtub 1 while being detachable.

  When the fixing tool 60 and the movable tool 61 are connected by the long bolt 71, the head of the long bolt 71 is small, so that the long bolt 71 is prevented from getting in and out of the bathtub 1, and the long bolt 71 is long. Since the shank bolt 71 cannot be operated without a tool such as a spanner, the long bolt 71 is not loosened by mischief.

  When the swing plate 76 of the movable tool 61 swings and presses in a posture along the inner surface of the side wall 2 of the bathtub 1, even if the inner surface of the side wall 2 of the bathtub 1 is inclined, the holding member 3 is fixed to the fixing tool 3. 60 and the movable tool 61 can sandwich the side wall 2 of the bathtub 1 more reliably.

  When the valve body 89 of the air valve mechanism comes into close contact with the lower surface of the valve seat 83 when the small diameter pipe 9 is lowered, the through hole 85 connecting the inside of the small diameter pipe 9 and the inside of the large diameter pipe 7 is closed. The air in the large pipe 7 acts as an air cushion against the descending of the small diameter pipe 9, and the small diameter pipe 9 is prevented from abruptly descending. When the small-diameter pipe 9 is raised, the air pressure in the large-diameter pipe 7 is lowered with the rise, and the valve body 89 is pushed down, so that the through-hole 85 is opened and the inside of the small-diameter pipe 9 is large. There is almost no difference in air pressure with respect to the inside of the pipe 7, and it is possible to reduce the pulling of the small diameter pipe 9 due to the decrease in the air pressure in the large diameter pipe 7 due to the rise, and to easily raise the small diameter pipe 9. Can do.

  1 to 14 show an embodiment of a handrail for a bathtub targeted by the present invention. As shown in FIG. 1, as shown in FIG. 1, the upper end 2 a of the side wall 2 of the bathtub 1 faces downward from inside and outside of the bathtub 1. A U-shaped holding member 3, a vertical sticking vertical stick member 5 erected on the clamping member 3, and a gripping member 6 provided at an intermediate portion of the positive sticking member 5 are included.

  The support rod member 5 includes a lower-diameter pipe 7 whose lower end is fixed to the clamping member 3, an upper-diameter pipe 9 that is slidably fitted to the large-diameter pipe 7 in a vertically slidable manner, A ceiling receiving member (upper end portion) 12 is provided that is disposed on the upper end of the small-diameter pipe 9 and is received by the ceiling 11 of the bathroom 10. Between the large-diameter pipe 7 and the small-diameter pipe 9, there is provided a locking tool 13 for holding the small-diameter pipe 9 so that the small-diameter pipe 9 cannot be moved up and down.

  When the small-diameter pipe 9 is pulled out above the large-diameter pipe 7, the ceiling receiving member 12 is pressed against the ceiling 11 of the bathroom 10, and then the lock 13 is operated, the small-diameter pipe 9 remains in a vertical posture by a predetermined amount. It is pushed up and received by the ceiling 11, and is held locked in this state. The ceiling receiving member 12 is supported so as to be movable up and down with respect to the small diameter pipe 9, and is pushed up and biased by a compression coil spring (spring means) 15 shown in FIG. Thereby, the elastic force of the compression coil spring 15 receives the repulsive force when the ceiling receiving member 12 is pressed against the ceiling 11.

  As shown in FIG. 2, a spring receiving cylinder 16 in which a compression coil spring 15 is accommodated is fitted and fixed to the upper end of the small diameter pipe 9. The spring receiving cylinder 16 has a bottom wall 17 that receives the lower end of the compression coil spring 15 near the lower end, and the downward stepped surface 19 of the outer periphery is received by the peripheral edge of the upper end opening of the small diameter pipe 9, and the downward stepped surface 19. The lower part fits inside the small diameter pipe 9. The lower end portion of the spring receiving cylinder 16 is fixed to the small diameter pipe 9 by screws 16a and 16a.

  The ceiling receiving member 12 is a plastic molded product having a base portion 21 having two dents 20 on a circular upper surface and a cylindrical portion 22 integrally suspended from the lower end of the base portion 21. A cylindrical spring seat 23 is disposed in close contact with the inner peripheral surface. The spring receiving seat 23 is fitted on the upper end portion of the small diameter pipe 9 and the upper end portion of the spring receiving cylinder 16 protruding above the small diameter pipe 9 so as to be slidable up and down.

  An upper wall 25 that receives the upper end of the compression coil spring 15 is provided at the upper end of the spring receiving seat 23, and two stud bolts 26 are fixed to the upper surface of the upper wall 25 in an upright posture. A spring shaft 27 on which the compression coil spring 15 is fitted is fixed in a suspended position at the center of the lower surface of the upper wall 25 of the spring seat 23.

  The base portion 21 of the ceiling receiving member 12 is provided with two bolt insertion holes penetrating downward from the bottom surface of each recess 20. The stud bolts 26 are passed through the bolt insertion holes, the upper ends of the bolts 26 are projected into the recesses 20, and the nuts 30 are screwed into the projecting upper ends of the bolts 26 from the upper surface side. A spring receiving seat 23 is fixed to the receiving member 12.

  The lower end of the spring shaft 27 is inserted into a through hole 31 provided in the bottom wall 17 of the spring receiving cylinder 16. A stop member 32 made of a lock nut or the like is provided at the lower end of the spring shaft 27 below the through hole 31. Install. Accordingly, the spring shaft 27 is incorporated in the spring receiving cylinder 16 so as to be movable up and down, and the stopper member 32 prevents the spring shaft 27 from coming off upward. A cushion material 33 made of silicon rubber or the like is attached to the upper surface of the base portion 21 of the ceiling receiving member 12.

  In FIG. 3, the lock 13 includes a vertically long cylindrical fixing ring 35 received and supported by the upper end of the large-diameter pipe 7, and a vertically long cylindrical fastening ring 36 that loosely fits on the outer periphery of the small-diameter pipe 9 and performs a fastening action. A handle 37 pivotally connected to the fastening ring 36 to swing the small diameter pipe 9 in the vertical direction, a pair of left and right links 39 connecting the fixing ring 35 and the handle 37, and an outer peripheral surface of the fastening ring 36. And a cover 40 made of synthetic rubber that covers the outer peripheral surface of the handle 37. The lower portion of the cover 40 has a reduced diameter, and the lower portion is fitted and held in the upper end portion of the fixing ring 35.

  The fixing ring 35 is provided with a vertical split 42 at one part of the cylindrical wall, and a pair of left and right link connecting pieces 45 and 45 are integrally provided in the vertical direction outside the open end facing the split 42. As shown in FIG. 4, a downward stepped surface 35 a is provided around the inner peripheral surface of the fixing ring 35 in a circular shape, and the fixing ring 35 is fitted to the outer periphery of the large-diameter pipe 7 from above. Thus, the downward stepped surface 35 a is received by the periphery of the upper end opening of the large-diameter pipe 7 through the packing 43.

  In addition, the fixing ring 35 is fixed to the upper end of the large-diameter pipe 7 by fastening the upper and lower sides of both link connecting pieces 45 and 45 with bolts 46 and 46. The small-diameter pipe 9 can be fitted to the inside of the large-diameter pipe 7 through the fixing ring 35 from the lower end side so as to be slidable up and down.

  As shown in FIG. 3, the fastening ring 36 has a vertical split 49 in one portion of the cylindrical wall, and a pair of left and right handle connecting pieces 50 on the outside of the open end of the fastening ring 36 facing the split 49. -50 is provided integrally in the vertical direction. The handle connecting pieces 50 are opposed to each other with a predetermined interval in a free state.

  The handle 37 is formed in a downward U-shape having side walls on the left and right of the main surface wall that is long in the front-rear direction, and the bottom surface is open. It protrudes. The handle 37 is pivotally connected via a horizontal pivot 51 in a state where the left and right base ends 37a are joined to the handle connecting pieces 50 and 50 on the outer surface thereof. Thus, the handle 37 is connected to the fastening ring 36 so as to be swingable up and down around the pivot 51 over a substantially horizontal posture (FIG. 4) and a substantially vertical posture (FIG. 5) which is tilted downward. The pivot 51 is composed of a bolt or the like.

  As shown in FIG. 3, one end of each of the left and right links 39 is connected to the proximal end of the handle 37 via a fixed shaft 52, and the other end is connected to the link connecting pieces 45 and 45 of the fixed ring 35 via a movable shaft 53. Are connected to move up and down. One end of each link 39 and the fixed shaft 52 are connected to the handle 37 by a pair of screws 52a and 52a. The movable shaft 53 is connected to the link connecting pieces 45 and 45 and the other ends of the links 39 by a pair of screws 53a and 53a, and along the longitudinal guide grooves 55 and 55 provided in the link connecting pieces 45 and 45. Move up and down. A cam for expanding and contracting the diameter of the fastening ring 36 between the outer side surface of each handle connecting piece 50 of the fastening ring 36 and the inner side surface of each base end portion 37a of the left and right side walls of the handle 37 facing this. A mechanism is provided.

  As shown in FIG. 6, the cam mechanism includes a passive fixed cam surface 50 a provided on the outer surface near the upper end of each handle connecting piece 50 of the fastening ring 36, and a cam fixed on the inner side of each base end portion 37 a of the handle 37. It consists of a movable cam surface 56 a on the operation side of the member 56. The fixed cam surface 50a includes a concave surface, a convex surface, and an inclined surface that connects these concave and convex surfaces, and the movable cam surface 56a includes a convex surface corresponding to the fixed cam surface 50a, a concave surface, and an inclined surface that connects these concave and convex surfaces. Become. One of the link connecting pieces 45 and 45 of the fixing ring 35 is formed thick, and a screw hole reaching the guide groove 55 from the lower end surface of the link connecting piece 45 on the thick side is formed. An adjustment bolt 59 is provided in the vertical direction and screwed into the screw hole from below.

  When the handle 37 is in a substantially horizontal posture, the convex surface of the movable cam surface 56a fits into the concave surface of the fixed cam surface 50a, and the concave surface of the movable cam surface 56a fits into the convex surface of the fixed cam surface 50a. As shown, the interval between the handle connecting pieces 50 and 50 of the fastening ring 36 is large, and the fastening ring 36 is in an expanded state. Therefore, the small-diameter pipe 9 can be inserted into the fastening ring 36 at the lower end side thereof, and then into the large-diameter pipe 7 in a state where it can freely move up and down.

  When the handle 37 is swung downward about the pivot 51, the convex surface of the movable cam surface 56a is released from the concave surface of the fixed cam surface 50a and rides on the convex surface via the inclined surface. By joining the two convex surfaces, as shown in FIG. 8, the interval between the handle connecting pieces 50 and 50 of the fastening ring 36 is reduced, and the fastening ring 36 is reduced in diameter so that the small diameter pipe 9 cannot be moved in the vertical direction. Fasten and fix.

  From this locked state, the handle 37 can be rotated until it is in a substantially vertical posture. That is, when the handle 37 is in the previous horizontal position, the movable shaft 53 of the link 39 is positioned at the upper end of the guide groove 55, and when the handle 37 is lowered from this state, the movable shaft 53 moves below the guide groove 55. Go to.

  During the lowering operation of the handle 37, the fastening ring 36 fastens and fixes the small-diameter pipe 9 so as not to move up and down, and the movable shaft 53 is received by the upper end of the adjustment bolt 59 at the lower end side of the guide groove 55 in the subsequent state. (See FIG. 5). Then, when the handle 37 is further swung downward until it becomes a vertical posture, the fastening ring 36 is lifted upward together with the small-diameter pipe 9 while holding the small-diameter pipe 9 locked. The handle 37 and the link 39 are fastened by a fixing screw 47 in a state where the handle 37 is maintained in a vertical posture.

  As shown in FIG. 9, the sandwiching member 3 is a plastic molded product having a fixture 60 to which the lower end portion of the large-diameter pipe 7 is fixed and a movable tool 61 connected to the fixture 60. As shown in FIGS. 9 and 10, the fixture 60 extends downward from the outer end portion of the bathtub 1 in the straddling portion 62 and the straddling portion 62 positioned on the upper side of the side wall 2 of the bathtub 1. And a hanging portion 63 facing the outer surface of the side wall 2. A lower end portion of the large-diameter pipe 7 is attached to the extending portion 62 via a cylindrical packing 70. In the hanging part 63, the inner surface facing the side wall 2 of the bathtub 1 is covered with a cover 65, and a cushion material 66 made of silicon rubber or the like is attached to the outside of the cover 65. The cover 65 is fixed to the hanging part 63 with screws 63a and 63a.

  The movable tool 61 faces the inner surface of the side wall 2 of the bathtub 1, and a pair of guide bars 67 and 67 extend from the left and right ends of the upper end to the fixture 60 side. As shown in FIG. 11, a pair of guide holes 69 and 69 that open on the movable tool 61 side are provided in the straddling portion 62 of the fixing tool 60, and a spacer 79 is sandwiched between the end surfaces of the straddling portion 62. A cover 80 is arranged.

  The spacer 79 and the cover 80 are provided with communication holes 79 a and 80 a that are connected to the guide holes 69 of the fixture 60 and integrated with the guide holes 69, respectively. Each guide rod 67 of the movable tool 61 is inserted into each guide hole 69 of the fixture 60 via each communication hole 80 a of the cover 80 and each communication hole 79 a of the spacer 79. In the spacer 79, the end on the fixing tool 60 side is fitted into a recess formed on the end surface side of the extending portion 62 of the fixing tool 60, and the end on the fixing tool 60 side in the cover 80 is a recess formed in the spacer 79. To fit.

  Insertion holes 79b and 80b through which bolts 81 are inserted are provided between the communication holes 79a and 79a of the spacer 79 and between the communication holes 80a and 80a of the cover 80, respectively. The cover 80 and the spacer 79 are fixed to the fixing tool 60 by tightening into the screw holes 62 a provided in the extending portion 62 of the fixing tool 60 through the insertion hole 80 b and the insertion hole 79 b of the spacer 79.

  Bolt holes 69a are respectively provided in the inner walls of the guide holes 69 of the fixture 60, and long bolts 71 such as hexagon socket bolts are inserted into the bolt holes 69a. Each guide rod 67 of the movable tool 61 is formed with a screw hole 72 at the end face on the fixing tool 60 side, and each long bolt 71 is threaded through the bolt through hole 69a. As a result, the fixing tool 60 and the movable tool 61 are connected to each other, and the fixing tool 60 and the movable tool 61 sandwich the side wall 2 of the bathtub 1.

  As shown in FIG. 10, the surface of the movable tool 61 that faces the inner surface of the side wall 2 of the bathtub 1 is covered with a cover 73, and the cross-joint universal joint 75 is closer to the side wall 2 of the bathtub 1 than the cover 73. A swing plate 76 that can swing vertically and horizontally is provided. A cushioning material 77 made of silicon rubber or the like is affixed to the swinging plate 76 and presses against the side wall 2 of the bathtub 1 via the cushioning material 77.

  As shown in FIGS. 12 and 13, the horizontal shaft 75 a of the universal joint 75 is engaged with a pair of bearing recesses 61 a and 61 a provided in the movable tool 61, and the vertical axis 75 b of the universal joint 75 is an oscillating plate. A pair of bearing portions 76a and 76a provided on 76 are engaged. A cutout 73 a is formed below the cover 73 in order to prevent interference with the universal joint 75.

  In a state where the long bolts 71 and 71 are loosened and the space between the hanging portion 63 of the fixing device 60 and the swinging plate 76 of the movable device 61 is widened, the holding member 3 is attached to the upper end portion 2 a of the side wall 2 of the bathtub 1. After spanning, by tightening the long bolts 71 and 71, the side wall 2 of the bathtub 1 is sandwiched between the fixing tool 60 and the movable tool 61, and the clamping member 3 is attached to the side wall 2 of the bathtub 1. (State of FIG. 10). At this time, the swing plate 76 of the movable tool 61 swings and presses against the inclined surface of the side wall 2 via the cushion material 77 in a posture along the inner surface of the side wall 2 of the bathtub 1. In addition, when the thickness of the side wall 2 of the bathtub 1 is thin, the cover 80 is fixed to the straddling portion 62 of the fixture 60 with the bolt 81 in a state where the spacer 79 is removed.

  An air valve mechanism is disposed at the lower end of the small diameter pipe 9. As shown in FIG. 14, the air valve mechanism includes a valve seat 83 that closes the lower end opening of the small-diameter pipe 9, a valve shaft 86 that is inserted through a through hole 85 provided in the center of the valve seat 83, A compression coil spring (spring means) 87 disposed on the upper surface and urges the valve shaft 86 upward, and a disc-shaped valve body 89 fixed to the lower end of the valve shaft 86. A disc-shaped elastic plate 90 is disposed on the upper surface of the valve body 89. The inner diameter dimension of the through hole 85 is larger than the outer diameter dimension of the valve shaft 86.

  The valve body 89 is in close contact with the lower surface of the valve seat 83 through the elastic plate 90 by the urging force of the compression coil spring 87, and the through hole 85 is closed. Thus, when the small diameter pipe 9 is lowered, the air in the large diameter pipe 7 acts as a cushion and the small diameter pipe 9 is slowly lowered. When the small-diameter pipe 9 is raised, the air pressure in the large-diameter pipe 7 is reduced, the valve body 89 is pushed down, the through hole 85 is opened, and the small-diameter pipe 9 is easily raised.

  As shown in FIG. 1, the gripping member 6 includes a pair of upper and lower joints 91 and 91 attached to the large-diameter pipe 7 of the stick member 5, and a vertically long handrail 92 connected to the joints 91 and 91. Have. Each joint 91 is formed of a pair of half cylinders having the same shape, and is fixed to the large diameter pipe 7 by sandwiching the large diameter pipe 7 between the left and right half cylinders. The handrail 92 is connected to the upper and lower joints 91 and 91 with the upper and lower ends curved in an L shape. On the outer periphery of the upper end portion of the small-diameter pipe 9, a red band 93 is disposed in the circumferential direction, and a yellow band 95 is disposed below the red band 93.

  Next, the usage procedure of the handrail for bathtubs will be described. First, the small diameter pipe 9 is lowered into the large diameter pipe 7, and the long bolts 71 and 71 are loosened. The space between the oscillating plate 76 is widened. In this state, the sandwiching member 3 is straddled over the upper end 2a of the side wall 2 of the bathtub 1 at the position where the handrail for bathtub is to be disposed on the side wall 2 of the bathtub 1, and then the long bolts 71 and 71 are tightened respectively. The side wall 2 of the bathtub 1 is sandwiched between the fixing tool 60 and the movable tool 61.

  Next, the handle 37 is placed in a horizontal posture, and the small diameter pipe 9 is pulled upward. When pulling up the small diameter pipe 9, the ceiling receiving member 12 is applied to the ceiling 11 so that the red strip 93 is substantially hidden by the ceiling receiving member 12. When the handle 37 is swung downward from the horizontal posture in this state, the fastening ring 36 is reduced in diameter by the cam mechanism and the small-diameter pipe 9 is fastened and fixed, and the handle 37 is swung so that it is in a vertical posture. Then, the small diameter pipe 9 is pushed up together with the fastening ring 36. At this time, only the yellow belt 95 is exposed to the lower side of the ceiling receiving member 12.

  As a result, the ceiling receiving member 12 is strongly pressed against the ceiling 11, and the sticking bar member 5 presses the clamping member 3 against the upper surface side of the side wall 2 of the bathtub 1 and firmly fixes and holds it. Thereby, even when the handrail 92 is grabbed and pushed in the lateral direction when entering or leaving the bathtub 1, the holding member 3 does not come off the side wall 2 of the bathtub 1. The compression coil spring 15 of the stiff bar member 5 acts to prevent the ceiling receiving member 12 from being excessively pressed against the ceiling 11.

Top view of handrail for bathtub Longitudinal side view of ceiling receiving member Disassembled perspective view of locking device Longitudinal side view of the lock with the handle in the horizontal position Longitudinal side view of the lock with the handle in the vertical position AA line sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG. Exploded perspective view of the clamping member Vertical side view of the clamping member DD sectional view of FIG. Exploded perspective view of movable tool Cross-sectional plan view showing the main parts of the movable tool Longitudinal side view of air valve mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Side wall 3 Clamping member 5 Sticking rod member 6 Holding member 7 Diameter large pipe 9 Diameter small pipe 10 Bathroom 11 Ceiling 12 Ceiling receiving member 13 Locking tool 15 Compression coil spring 60 Fixing tool 61 Movable tool 62 Stretching part 63 Hanging Portion 67 Guide rod 69 Guide hole 69a Bolt through hole 71 Long bolt 72 Screw hole 75 Universal joint 76 Swing plate 83 Valve seat 85 Through hole 86 Valve shaft 87 Compression coil spring 89 Valve body

Claims (3)

A downward U-shaped sandwiching member (3) for sandwiching the side wall (2) of the bathtub (1), and a stick member (5) which is vertically extendable and erected on the sandwiching member (3); A gripping member (6) provided on the stick member (5),
The upper end of the prop member (5), that is received pressed against the ceiling (11) of the bath (10), prop member (5) has been fixed bracing the clamping member (3) ,
The support rod member (5) has a lower large-diameter pipe (7) whose lower end is fixed to the clamping member (3), and an upper side that is slidably fitted to the large-diameter pipe (7). A small diameter pipe (9), a ceiling receiving member (12) disposed on the upper end of the small diameter pipe (9) and received by the ceiling (11) of the bathroom (10), and the ceiling receiving member (12) Spring means (15) for receiving a repulsive force when pressed against the ceiling (11) of the bathroom (10),
Between the large-diameter pipe (7) and the small-diameter pipe (9), there is a locking tool (13) for holding the small-diameter pipe (9) so that the small-diameter pipe (9) cannot be moved vertically. And
The clamping member (3) has a fixture (60) to which the lower end portion of the large-diameter pipe (7) is fixed, and a movable tool (61) connected to the fixture (60). The side wall (2) of the bathtub (1) is sandwiched between the tool (60) and the movable tool (61),
The fixture (60) includes a straddling portion (62) located above the side wall (2) of the bathtub (1), and extends downward from the straddling portion (62) to the side wall (2) of the bathtub (1). The movable tool (61) has a guide rod (67) that faces the inner surface of the side wall (2) of the bathtub (1) and extends toward the fixing tool (60). And
By inserting the guide rod (67) into the guide hole (69) formed in the movable tool (61) of the fixing tool (60), the movable tool (61) is movable,
The long bolt (71) is tightened into the screw hole (72) provided in the guide rod (67) of the movable tool (61) through the bolt through hole (69a) provided in the back wall of the guide hole (69). The fixing tool (60) and the movable tool (61) are connected to each other, and the side wall (2) of the bathtub (1) is sandwiched between the fixing tool (60) and the movable tool (61). Handrail for bathtub. The movable tool (61) is provided with a swing plate (76) via a universal joint (75).
When the side wall (2) of the bathtub (1) is sandwiched between the fixing tool (60) and the movable tool (61), the swing plate (76) is positioned along the inner surface of the side wall (2) of the bathtub (1). The handrail for bathtubs according to claim 1, which is pressed against the handrail. An air valve mechanism is arranged at the lower end of the small diameter pipe (9),
The air valve mechanism includes a valve seat (83) that closes the lower end opening of the small diameter pipe (9), a valve shaft (86) that is inserted into a through hole (85) provided in the valve seat (83), and the valve shaft Spring means (87) for urging (86) upward, and a valve body (89) fixed to the lower end of the valve shaft (86),
When the small diameter pipe (9) is lowered, the valve element (89) is in close contact with the lower surface of the valve seat (83) by the urging force of the spring means (87), and the small diameter pipe (9) is lifted. The handrail for bathtubs according to claim 2, wherein the valve element (89) is pushed down against the urging force of the spring means (87) .

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