JP5222212B2 - Handrail for bathtub - Google Patents

Description

  The present invention relates to a handrail for a bathtub that is used by being attached to a side wall of the bathtub in order to assist in entering and exiting the bathtub.

  In order to care for bathing of elderly people and the like, a handrail for a bathtub that is used by being attached to a side wall of the bathtub has been conventionally provided. By grabbing on the handrail for the bathtub, it becomes easy to get over and out of the side wall of the bathtub.

  FIG. 19 shows an example of a handrail for a bathtub provided in Patent Document 1, which is formed by providing a handrail 2 on a U-shaped main body tool 3 whose bottom surface is open. A pair of left and right pressing plates 6 are provided inside one side piece 4 of the main body 3. Each pressing plate 6 is attached to the tip of a pair of bolt shafts 12 provided through the side piece 4, and a handle knob 13 is provided on the rear end portion of the bolt shaft 12 outside the side piece 4. A female screw recess (not shown) is formed in the handle knob 13, and the rear end portion of the bolt shaft 12 is screwed into the female screw recess. The other side piece 22 of the handrail 2 is provided with a pressure receiving plate 9 inside thereof.

  And when attaching this handrail for bathtubs to the side wall 1 of a bathtub, the main body tool 3 is first arrange | positioned so that the upper end part of the side wall 1 may be straddled, and the press receiving plate 9 is contact | abutted to the surface outside the bathtub of the side wall 1 Let Next, when each of the pair of handle knobs 13 is turned, the bolt shaft 12 whose rear end portion is screwed into the female screw recess of the handle knob 13 moves forward by this screwing, and is provided at the tip portion of the bolt shaft 12. The pressed plate 6 can be moved forward and brought into contact with the surface of the side wall 1 in the bathtub. Thus, by turning the handle knob 13 and tightening, the side wall 1 of the bathtub can be sandwiched between the pressure receiving plate 9 and the pressing plate 6, and a handrail for bathtub is attached to the side wall 1 of the bathtub. It can be done.

  Here, as shown in FIG. 20, the side wall 1 is often curved at the inner surface side of the bathtub and the thickness is not constant. For this reason, a pair of pressing plates 6 are provided so that each pressing plate 6 can be moved back and forth independently by rotating the handle knob 13 corresponding to each pressing plate 6. 6 is adjusted so that the side wall 1 of the bathtub can be sandwiched between the pressure receiving plate 9 and the pressing plate 6 even in portions that are curved and have different thicknesses. It can be attached.

JP 2004-261327 A

  In the handrail for bathtubs formed as described above, a pair of left and right pressing plates 6 are provided so as to cope with a change in thickness due to the curvature of the side wall 1 of the bathtub, and each pressing plate 6 is independent of each other. Therefore, the operation of each pressing plate 6 needs to be performed by turning the two handle knobs 13 respectively. Therefore, when attaching the handrail for bathtubs to the side wall 1 of the bathtub, it is necessary to turn and tighten the two handle knobs 13 in order, and there is a problem that it takes time. In particular, when a handrail for a bathtub is attached only when an elderly person takes a bath, and the handrail for a bathtub is removed at other times, it is necessary to turn the two handle knobs 13 for both attachment and removal. , Troublesomeness is further complicated.

  This invention is made | formed in view of said point, and it aims at providing the handrail for bathtubs which can reduce the effort of the operation of attachment to the side wall of a bathtub, or removal.

  The handrail for bathtubs according to the present invention is disposed at the upper end portion of the side wall 1 of the bathtub, and is disposed opposite to the main body tool 3 provided with the handrail 2 and one side surface of the side wall 1 of the bathtub. Side piece 4 formed on one side, one pressing tool 5 provided on the inner side of the side piece 4, and a pair of pressing plates provided on the surface of the pressing tool 5 on the side opposite to the side piece 4 6, an operation handle 7 that is provided outside the side piece 4 and that moves the pressing tool 5 toward and away from the side piece 4, and a side portion of the main body tool 3 opposite to the side piece 4. A pair of pressure receiving members 8 that are independently slidable in the direction of approaching and moving away from the pressing tool 5, and a pair of pressing receiving members 8 that face the pair of pressing plates 6. A press receiving plate 9 provided, and a fixing / releasing means 10 for releasably fixing the press receiving member 8 to a position where the press receiving member 8 is slid, It is to characterized in that it comprises.

  According to the present invention, the pair of press receivers 8 are independently slid and moved so that the press receiving plate 9 of each press receiver 8 can be attached to the bathtub even in a portion where the side wall 1 of the bathtub is curved and has a different thickness. By making the pressing tool 5 move forward by operating one operation handle 7 and pressing the pair of pressing plates 6 against the side surface of the side wall 1 of the bathtub, A bathtub handrail can be attached to the upper end of the bathtub side wall 1 by sandwiching the bathtub side wall 1 between the pressing plate 6 and the pressure receiving plate 9. In this way, a pair of pressing plates 6 can be moved by operating one operating handle 7 to perform clamping to sandwich the side wall 1 of the bathtub between the pressing plate 6 and the pressing receiving plate 9. It is possible to reduce the trouble of the operation of attaching to or removing from the side wall 1 of the bathtub. In particular, when repeatedly attaching to or removing from the same portion of the side wall 1 of the bathtub, the operation of sliding the pair of pressing receptacles 8 is only required when the attachment is first performed, and thereafter, one operation handle 7 is operated. It is only necessary to do this, and the labor of attaching and detaching to the side wall 1 of the bathtub is reduced.

  Further, in the present invention, the operation handle 7 is provided through the female screw 11 provided on the side piece 4 so as to penetrate the side piece 4, and a bolt shaft 12 whose tip is connected to the pressing tool 5; A handle knob 13 is attached to the rear end portion of the bolt shaft 12 and rotates the bolt shaft 2 to advance and retract the bolt shaft 12 by screwing with the female screw 11. And a rotation transmission blocking mechanism 14 that prevents the turning force from being transmitted from the handle knob 13 to the bolt shaft 12 when the turning force is transmitted to the bolt shaft 12 and exceeds a predetermined force. It is.

  According to the present invention, the operation of turning the handle knob 13 of the operating handle 7 to rotate the bolt shaft 12 causes the pressing tool 5 to move forward, so that the pressing plate 6 and the pressing receiving plate 9 of the pressing tool 5 are moved forward. Even when the handle knob 13 is turned with a strong force in a state where the pressing plate 6 of the pressing tool 5 is in contact with the side wall 1 of the bathtub when the side wall 1 of the bathtub is sandwiched between the handrails for the bathtub, The force from the knob 13 is blocked by the rotation transmission blocking mechanism 14 and is not transmitted to the bolt shaft 12, and the pressing plate 6 of the pressing tool 5 can be prevented from being pressed against the side wall 1 of the bathtub by an excessive force. It can prevent that the side wall 1 of a bathtub is damaged.

  Further, in the present invention, the pressing receiver 8 is formed to include a slide piece 16 that is slidably inserted into an insertion hole 15 provided in the main body tool 3, and the fixing / releasing means 10 includes the slide piece 16. A plurality of engaging grooves 17 formed along the sliding direction and a latch tool 18 provided in the main body tool 3 and freely engageable and disengageable with the engaging groove 17 are provided. is there.

  According to the present invention, the fixing / releasing means 10 is fixed or released when the pressing receiver 8 is slid, by engaging or disengaging the latching tool 18 with the engaging groove 17 of the slide piece 16. Therefore, the slide operation of the press receiver 8 can be easily performed.

  According to the present invention, the pair of press receivers 8 are independently slid and moved so that the press receiving plates 9 of the press receivers 8 can be attached to the bathtub even in portions where the side walls 1 of the bathtub are curved and have different thicknesses. By making the pressing tool 5 move forward by operating one operation handle 7 and pressing the pair of pressing plates 6 against the side surface of the side wall 1 of the bathtub, A bathtub handrail can be attached to the upper end of the bathtub side wall 1 by sandwiching the bathtub side wall 1 between the pressing plate 6 and the pressure receiving plate 9. In this way, a pair of pressing plates 6 can be moved by operating one operating handle 7 to perform clamping to sandwich the side wall 1 of the bathtub between the pressing plate 6 and the pressing receiving plate 9. It is possible to reduce the trouble of the operation of attaching to or removing from the side wall 1 of the bathtub. In particular, when repeatedly attaching to or removing from the same portion of the side wall 1 of the bathtub, the operation of sliding the pair of pressing receptacles 8 is only required when the attachment is first performed, and thereafter, one operation handle 7 is operated. It is only necessary to do this, and the trouble of the operation of attaching to and removing from the side wall 1 of the bathtub is reduced.

It is a perspective view which shows an example of embodiment of this invention. It is a side view same as the above. It is a rear view same as the above. It is a bottom view same as the above. It is side surface sectional drawing same as the above. It is a bottom sectional view same as the above. It is sectional drawing which shows the operation handle same as the above. It is a disassembled perspective view which shows the operation handle same as the above. (A) is a sectional view showing a handle knob, (b) is a front view showing a movable lock washer receiver, (c) is a front view showing a fixed lock washer receiver, and (d) is a fixed lock washer receiver. It is sectional drawing. It shows a torque lock washer as above, (a) is a front view, (b) is a cross-sectional view taken along line II, (c) is a rear view, and (d) is an enlarged cross-sectional view taken along the roll line. is there. FIG. 9 shows the meshing of the torque lock washer of the rotation transmission blocking mechanism same as above, and (a) and (b) are partial cross-sectional views. It is a disassembled perspective view which shows a press receiver, a latch tool, etc. same as the above. The press receiving tool same as the above is shown, (a) is a front view, (b) is a plan view. It is a disassembled perspective view of a latch tool same as the above. It is sectional drawing of a latch tool same as the above. The engagement groove | channel and latch claw engagement state same as the above are shown, (a) (b) is a schematic diagram, respectively. It is sectional drawing seen from the bottom which shows the attachment state same as the above. It is a perspective view which shows an example of other embodiment of this invention. It shows a conventional example, (a) is a side view, (b) is a bottom view. It is the schematic which shows the attachment state of a prior art example.

  Embodiments of the present invention will be described below.

  FIGS. 1 to 6 show an example of an embodiment of a handrail A for bathtubs according to the present invention, and a handrail 2 is provided on a main body 3. The main body tool 3 is formed in a lateral L-shaped cross section from an upper piece 24 and a side piece 4 provided to hang downward on one side of the upper piece 24, and the handrail 2 is a side piece of the main body tool 3. 4 is attached to the outer surface. As shown in FIG. 5, the upper piece 24 includes a horizontal portion 24a formed integrally with the side piece 4 and a cover portion 24b attached to the horizontal portion 24a.

  The handrail 2 is formed as shown in FIG. 1 from a pair of struts 25 attached to the outer surfaces of both side ends of the side piece 4 and an annular grip 26 attached between the upper ends of the struts 25. . Each support column 25 is provided with mounting holes 27 at a plurality of positions at equal intervals in the upper and lower portions, and a fixing screw 28 is screwed into the side piece 4 as shown in FIG. And the handrail 2 can be attached. Since the mounting holes 27 are provided at a plurality of positions on the support column 25, the height of the grip 26 of the handrail 2 can be adjusted by selecting the mounting holes 27 through which the fixing screws 28 are passed.

  A female screw 11 is attached to the center of the side piece 4. As shown in FIGS. 5 and 6, the female thread tool 11 opens in both the inner and outer directions of the side piece 4, and has a female thread formed on the inner periphery. A bolt shaft 12 is passed through the female screw tool 11 in a state where the outer male screw is screwed into the inner female screw. As shown in FIGS. 7 and 8, a pressing tool mounting shaft portion 30 is provided at an end portion of the bolt shaft 12 that protrudes inward from the side piece 4, and the bolt shaft 12 is outward from the side piece 4. A handle knob mounting shaft portion 31 is provided at an end portion on the side protruding to the rear. The handle knob mounting shaft portion 31 is composed of a square shaft portion 32 having a hexagonal cross section on the base side and a round shaft portion 33 having a circular cross section on the tip side. Further, a hollow hole extending over the entire length is provided at the center of the bolt shaft 12, and a screw is cut into the inner periphery of the portion of the pressing tool mounting shaft portion 30 and the portion of the round shaft portion 33 of the hollow hole. 34 is formed.

  7 and 8 show the operation handle 7. 7 and 8, 13 is a handle knob, which is formed in a cylindrical shape with a hole penetrating in the center, and as shown in FIG. 9A, this hole communicates from the outside to the inside. The concealment hole 36, the idling round hole 37 formed in the smallest diameter round hole, the washer accommodating hole 38 having a larger diameter than the idling round hole 37, and the octagonal hole having a larger diameter than the washer accommodating hole 38 are formed. It is formed by the washer receiving and receiving hole 39. A washer 49 is accommodated in the washer accommodating hole 38, and the washer receiving and accommodating hole 39 formed in a square hole has an octagonal outer periphery as shown in FIG. A movable side lock washer receiver 40 formed in a donut shape is fitted and attached. The movable side lock washer receptacle 40 is provided with pin holes 41 at four equally spaced positions so as to surround the inner peripheral round hole 40a.

  7 and 8, reference numeral 42 denotes a torque lock washer having an inner and outer periphery formed in a circular donut plate shape. On the outer peripheral portion of one side of the torque lock washer 42, as shown in FIGS. 10 (a) to 10 (c), lock projections 43 project at a plurality of positions at equal intervals along the circumferential direction. An engaging recess 46 is formed between adjacent lock protrusions 43. As shown in FIG. 10 (d), each lock projection 43 has an inclined portion 44 that inclines so as to rise obliquely from the surface of the torque lock washer 42 toward the circumferential direction of the torque lock washer 42, It is formed by a parallel portion 45 that is continuous with the upper end and is parallel to the surface of the torque lock washer 42. In FIG. 10A, the inclined portion 44 and the parallel portion 45 are indicated by hatching. The torque lock washer 42 is provided with pin holes 47 at four equally spaced locations so as to surround the inner periphery thereof.

  The torque lock washer 42 is arranged on one side of the movable lock washer receiver 40 so that the surface on which the lock projection 43 is provided is on the outside, and the pin hole 47 of the torque lock washer 42 and the movable lock washer receiver are arranged. The pin 48 is press-fitted into the 40 pin holes 41 so as to be attached to the movable lock washer receiver 40 while being prevented from rotating in the circumferential direction.

  In FIGS. 7 and 8, reference numeral 51 denotes a fixed-side lock washer receptacle, and the fixed-side lock washer receptacle 51 is a cylinder having a hexagonal hole 51b as shown in FIGS. 9 (c) and 9 (d). A lock washer receiving recess 53 is provided on one side of the fixed lock washer receiver 51 so as to surround the inner peripheral square hole 51b. In the lock washer housing recess 53, pin holes 52 are formed at four equally spaced positions so as to surround the square hole 51b. The torque lock washer 42 is disposed in the lock washer receiving recess 53 so that the surface on which the lock projection 43 is provided is on the outside, and the pin hole 47 of the torque lock washer 42 and the pin of the fixed lock washer receiver 51 are arranged. The pin 48 is press-fitted into the hole 52 to be attached to the fixed-side lock washer receiver 51 in a state of being prevented from rotating in the circumferential direction.

  The fixed lock washer receiver 51 to which the torque lock washer 42 is attached in this manner is inserted into the handle knob attachment shaft portion 31 of the bolt shaft 12 from the tip thereof, and the inner peripheral square hole 51b is fitted into the square shaft portion 32. In the combined state, it is attached to the bolt shaft 12 as shown in FIG. The fixed side lock washer receiver 51 is mounted so that the surface to which the torque lock washer 42 is attached faces the front end side of the handle knob attachment shaft portion 31, and the square hole 51 b and the square shaft portion 32 are fitted together. Thus, the handle knob mounting shaft 31 is fixed in a non-rotating state.

  Further, the handle knob 13 fitted with the movable side lock washer receiver 40 fitted as described above is inserted into the handle knob mounting shaft portion 31 of the bolt shaft 12 from the tip thereof and attached to the round shaft portion 33 as shown in FIG. The idle rotation round hole 37 of the handle knob 13 and the inner peripheral round hole 40 a of the movable side lock washer receiver 40 are rotatable by rotating around the outer periphery of the round shaft portion 33. Then, as shown in FIG. 7, a washer 55 is disposed at the bottom of the head concealing hole 36, the fixing screw 56 is screwed into the female screw hole 34 of the handle knob mounting shaft portion 31, and the hole of the head concealing hole 36 is formed with the washer 55. The handle knob 13 is prevented from coming off by pressing the bottom. A rubber cap 57 is fitted into the head concealing hole 36 so as to conceal the head of the fixing screw 56.

  Here, the movable lock washer receiver 40 attached to the handle knob 13 as described above is provided with a torque lock washer 42. By attaching the handle knob 13 to the handle knob mounting shaft portion 31, the movable lock washer 42 is provided. The torque lock washer 42 of the receiver 40 meshes with the torque lock washer 42 provided on the fixed lock washer receiver 51 as described above. That is, as shown in FIG. 11A, the torque lock washer 42 (42 a) of the fixed lock washer receiver 51 and the torque lock washer 42 (42 b) of the movable lock washer receiver 40 are engaged with the lock protrusion 43. The mating recesses 46 are engaged with each other by engaging with each other. By the engagement of the torque lock washers 42a and 42b, the rotational force when the handle knob 13 is turned and operated is transmitted to the bolt shaft 12, and the bolt shaft 12 can be turned. Further, if the turning force when turning the handle knob 13 is an excessive force, the torque lock washer 42a of the fixed lock washer receiver 51 and the movable lock washer receiver 40 are fixed as shown in FIG. Each inclined portion 44 of the torque lock washer 42b slides to disengage the lock projection 43 and the engagement recess 46 from engagement. The parallel part 45 of the torque lock washer 42b of the movable lock washer receiver 40 rides on the parallel part 45 of the torque lock washer 42a of the fixed lock washer receiver 51, so that the torque lock of the fixed lock washer receiver 51 is achieved. Since the torque lock washer 42b of the movable lock washer receiver 40 rotates in the direction indicated by the arrow with respect to the washer 42a, the handle knob 13 also idles on the outer periphery of the idling round hole 37 and is operated by turning the handle knob 13. The rotating force can be prevented from being transmitted to the bolt shaft 12. A pair of torque lock washers 42 having such a configuration is provided between the handle knob 13 and the bolt shaft 12, and when the force is below a predetermined force, the rotational force is transmitted from the handle knob 13 to the bolt shaft 12, and when the predetermined force is exceeded. A rotation transmission blocking mechanism 14 is formed to prevent the turning force from being transmitted from the handle knob 13 to the bolt shaft 12.

  As described above, by attaching the rotation transmission blocking mechanism 14 and the handle knob 13 to the bolt shaft 12, the operation handle 7 as shown in FIG. 7 is formed. As described above, the female screw 11 The operation handle 7 can be attached to the main body tool 3 by inserting the bolt shaft 12 through the side piece 4 in a state of being screwed to the main body tool 3.

  A pressing tool 5 is attached inside the side piece 4 to the tip of the bolt shaft 12 inserted through the side piece 4 in this way. As shown in FIGS. 5 and 6, the pressing tool 5 is formed of a plate-like body that is long on the left and right, and the pressing tool mounting shaft 30 at the tip of the bolt shaft 12 is inserted into the hole in the center. By screwing the fixing screw 59 into the female screw hole 34 of the pressing tool mounting shaft portion 30, the fixing screw 59 is pressed by the fixing screw 59 and attached to the pressing tool mounting shaft portion 30 at the tip of the bolt shaft 12 with a little play. Accordingly, the pressing tool 5 is rotatable in the vertical direction around the axis of the bolt shaft 12 and is swingable in the front-rear direction. And the press plate 6 is provided in the surface on the opposite side to the side piece 4 of the pressing tool 5 in the right-and-left both ends, respectively. The pressing plate 6 is formed in a vertically long rectangle, and a non-slip sheet 60 formed of a rubber sheet or the like is attached to the surface of each pressing plate 6 opposite to the side piece 4. As shown in FIG. 6, the pressing plate 6 is attached to the pressing tool 5 with a fixed shaft 61 so that it can be freely rotated in the vertical direction around the fixed shaft 61 and swingable in the front-rear direction.

  When the handle knob 13 of the operation handle 7 is turned to rotate the bolt shaft 12, the external thread of the bolt shaft 12 is engaged with the internal thread of the internal thread tool 11. Accordingly, the bolt shaft 12 is moved by screwing or screwing back, and the pressing tool 5 and the pressing plate 6 can be moved back and forth in the direction away from the side piece 4 or in the direction close to the side piece 4.

  The upper piece 24 of the main body 3 is provided with an insertion hole 15 that is elongated in a direction orthogonal to the side piece 4 and opens at the side opposite to the side piece 4. A pair of the insertion holes 15 is provided in parallel to both end portions of the upper piece 24. By providing a cylindrical portion 70 on the upper surface of the upper piece 24 of the main body 3 as shown in FIG. The insertion hole 15 is formed in the portion 70.

  The pressing receptacle 8 is formed in a horizontal L-shape as shown in FIGS. 12 and 13 from a horizontal slide piece 16 and a receiving piece 63 extending downward from one end of the slide piece 16. In addition, a C-shaped grip 64 is provided on the surface of the receiving piece 63 opposite to the slide piece 16. A pressure receiving plate 9 is attached to the surface of the receiving piece 63 on the slide piece 16 side. The pressure receiving plate 9 is formed in a vertically long rectangle, and a non-slip sheet 60 formed of a rubber sheet or the like is attached to the surface of the pressure receiving plate 9 opposite to the receiving piece 63. As shown in FIG. 6, the pressure receiving plate 9 is attached to the receiving piece 63 of the pressure receiving member 8 with play by a fixed shaft 65, and can be rotated in the vertical direction around the fixed shaft 65, and can be swung in the front-rear direction. It has become.

  A pair of the press receivers 8 provided with the press receiving plates 9 are used, and each slide piece 16 is slidably inserted into each insertion hole 15 of the upper piece 24 of the main body tool 3, whereby the upper piece 24 side. A pair of left and right press receivers 8 are attached to the side opposite to the piece 4. Thus, when the slide piece 16 is inserted into the insertion hole 15 and the pair of press receivers 8 are attached to the main body tool 3, the press receiver plates 9 provided on the pair of press receivers 8 are provided on the press tool 5. The surfaces on which the pair of pressing plates 6 and the anti-slip sheet 60 are pasted face each other.

  Here, a large number of engaging grooves 17 are recessed at equal intervals along the longitudinal direction of the slide piece 16, that is, the front-rear direction, on the opposite inner side surfaces of the slide piece 16 of each pressing receiver 8. . As shown in FIG. 13, the engaging groove 17 has a side surface on the side piece 4 formed on a vertical surface 17 a perpendicular to the sliding direction of the slide piece 16, and a surface opposite to the side piece 4 is the slide piece. It forms in the inclined surface 17b which inclines to the opposite side to the side piece 4 with respect to 16 sliding directions.

  In addition, the pair of cylindrical portions 70 provided on the upper piece 24 of the main body 3 are provided with latch window holes 72 on opposite side surfaces in the vicinity of the opening of the insertion hole 15, so that one of the insertion holes 15 is provided. The part is opened to the side. The latch tool 18 is attached to the outside of the latch window hole 72.

  The latch claw holder 73 serving as the main body of the latch tool 18 is formed by providing a holder cylinder 75 on the upper surface of the substrate 74. As shown in FIGS. 14 and 15, the holder cylinder 75 is opened at both ends. A cave 76 is provided. A laterally long guide hole 77 and a stopper hole 78 are formed in one side portion of the holder cylinder 75 so as to communicate with the holder cave 76. A latch claw 79 and a holding spring 80 are attached in the holder cave 76. The latch claw 79 is provided with a slide inclined surface 81 at the tip and is formed in a horizontal cross-section letter shape, and has a pin hole 82 opened in the side surface. A cylindrical stopper 83 is fitted into one open end of the holder cave 76, and the stopper 83 is fixed by a fixing screw 84 that is passed through the stopper hole 78. The connecting plate 86 is attached to the operation plate 85 through a connecting bolt 86, and the connecting bolt 86 is inserted into the holder cave 76 through the inner periphery of the stopper 83. Then, a holding spring 80 and a latch claw 79 formed as a coil spring are inserted into the holder cave 76 from the other opening end portion, and the leading end portion of the connecting bolt 86 is passed through the holding spring 80 so that the rear end portion of the latch claw 79 is inserted. The latch claw 79 is fixed to the tip end portion of the connecting bolt 86 by screwing into the screw hole 87 provided in the connecting bolt 86. With the latch claw 79 arranged in the holder cave 76 in this way, the guide pin 88 is passed through the guide hole 77 and inserted into the pin hole 82 of the latch claw 79, and the guide pin 88 moves in the guide hole 79. The latch claw 79 is slidably moved between a position where the tip portion provided with the slide inclined surface 81 protrudes from the holder cave 76 and a position where the tip portion of the latch claw 79 is retracted into the holder cave 76. It is.

  The latch tool 18 with the latch claw 79 attached as described above is fixed to the upper piece 24 of the main body tool 3 at a position where the latch claw 79 is inserted into the insertion hole 15 from the latch window hole 72. The sliding inclined surface 81 at the tip of the latch claw 79 is arranged so as to face the opening side of the insertion hole 15. Here, a presser spring 80 is interposed between the rear end of the latch pawl 79 and the stopper 83, and the latch pawl 79 protrudes from the holder cave 76 by the elastic force of the presser spring 80, that is, the latch. It is urged in a direction to be inserted into the insertion hole 15 through the window hole 72. As described above, the slide piece 16 of the pressure receiving member 8 is inserted into the insertion hole 15, and is latched in the engagement groove 17 formed on the side surface of the slide piece 16 as shown in FIG. By engaging the tip of the claw 79, the pressing receptacle 8 can be fixed at the position where the slide piece 16 is inserted into the insertion hole 15. When the operation plate 85 is pulled away from the latch claw holder 73, the latch claw 79 moves backward in the direction of retracting into the holder cave 76 against the pressing spring 80, and comes out of the insertion hole 15 through the latch window hole 72. Therefore, the latch pawl 79 is disengaged from the engagement groove 17 of the slide piece 16 and the fixing of the pressing receiver 8 is released. As described above, the engagement groove 17 provided in the slide piece 16 of the pressure receiving member 8, the latch claw 79 engaged with the engagement groove 17, the operation plate 85 for releasing the engagement, and the like, Thus, a fixing / releasing means 10 is formed for releasably fixing the pressing receptacle 8 at the position where the pressing receiver 8 is slid.

  The bathtub handrail A of the present invention formed as described above is used by being attached to the upper end portion of the side wall 1 of the bathtub, and first, the main body tool so that the side piece 4 is located outside the bathtub. 3 is placed over the upper end of the side wall 1, the pressing plate 6 of the pressing tool 5 is on the surface outside the bathtub of the side wall 1, and the pressing receiving plate 9 of the pressing receiver 8 is on the surface of the side wall 1 inside the bathtub, respectively. Make them face each other. And by sliding the slide piece 16 of a pair of press receiver 8 to the back of the insertion hole 15 of the main body tool 3, the press receiver plate 9 of each press receiver 8 is moved, The surface in the bathtub of the side wall 1 The outer surface of the pressure receiving plate 9 on which the anti-slip sheet 60 is pasted is brought into contact with the pressure receiving plate 9. At this time, the latch claw 79 of the latch tool 18 is engaged with the engagement groove 17 provided on the slide piece 16 of the press receiving device 8. Since the inclined surface 17b faces in the direction in which the slide piece 16 is slid to the back of the insertion hole 15, the slide piece 16 is moved to the back of the insertion hole 15 as shown by the arrow B in FIG. When slid, the sliding inclined surface 81 is pushed by the inclined surface 17b of the engaging groove 17, and the latch claw 79 is moved through the latch window hole 72 against the pressing spring 80 as shown by arrow C in FIG. The latch pawl 79 slides out of the engagement groove 17 by sliding in the direction of exiting from the insertion hole 15. For this reason, it can slide without big resistance by applying the force which pushes the slide piece 16 in the back of the insertion hole 15, and can move the press receiving plate 9 of the press receiver 8 in the direction which adjoins the side wall 1 of a bathtub. The pressure receiving plate 9 can be brought into contact with the side wall 1 of the bathtub.

  Here, the side wall 1 of the bathtub is often curved at the inner surface side of the bathtub and the thickness is not constant. However, since the pair of press receivers 8 can be slid independently, the press receiver of each press receiver 8 By independently adjusting the movement distances of the plates 9, as shown in FIG. 17, each press receiving plate 9 can be brought into contact with the side wall 1 of the bathtub even in a portion where the thickness changes due to bending. It is. Further, in adjusting the movement distance of the pair of press receivers 8 in this way, as described above, each press receiver 8 can be slid without great resistance, and the press receiver 8 is simply slid. This adjustment can be performed by operation. When each pressing receptacle 8 is slid in this manner and the pressing receptacle plate 9 is brought into contact with the side wall 1 of the bathtub, the latch fixture 18 is inserted into the engaging groove 17 of the slide piece 16 of each pressing receptacle 8 at this position. The latch pawl 79 is engaged, and the pressure receiving member 8 is fixed to the sliding position.

  Next, an operation of turning the handle knob 13 of the operation handle 7 is performed, the bolt shaft 12 is rotated and screwed, and the pressing plate 6 of the pressing tool 5 provided at the tip of the bolt shaft 12 is moved forward. In this way, the pressing plate 6 of the pressing tool 5 is advanced, the outer surface on which the anti-slip sheet 60 is stuck is brought into contact with the outer surface of the side wall 1, and the handle knob 13 is further turned to turn the pressing plate 6 to the side wall 1. The side wall 1 of the bathtub is sandwiched between the pressing plate 6 and the pressing receiving plate 9 of the pressing receiving device 8. Here, when the pressing plate 6 of the pressing tool 5 is brought into pressure contact with the side wall 1 of the bathtub, the pressing receiving plate 9 of the pressing receiver 8 is pressed along with this, and the slide piece 16 comes out of the insertion hole 15. The force in the direction indicated by the arrow 16 (a) acts, but when the tip of the latch claw 79 inserted into the engagement groove 17 of the slide piece 16 engages with the vertical surface 17a of the engagement groove 17, The engagement receiver 8 is fixed so that the slide piece 16 does not move in the direction of the arrow B. For this reason, the handrail A for bathtubs can be firmly attached to the upper end part of the side wall 1 of the bathtub with the stable clamping force by the pressing plate 6 of the pressing tool 5 and the pressing receiving plate 9 of the pressing receiving plate 8. .

  And by having the handrail 2 of the handrail A for bathtubs attached to the side wall 1 of a bathtub as mentioned above, it can be made into the assistance at the time of straddling the side wall 1 in order to enter / exit a bathtub, for example. Moreover, since the handrail A for bathtubs is provided with the grip 64 so as to protrude to the inside of the bathtub, it is possible to assist the rising by grasping the grip 64 when standing up from the posture sitting in the bathtub. Is.

  As described above, by turning the handle knob 13 of one operation handle 7 in a state where the pair of press receiving members 8 are slid and the respective press receiving plates 9 are in contact with the inner surface of the bathtub of the side wall 1. The pair of pressing plates 6 are simultaneously moved forward to sandwich the side wall 1 of the bathtub between the pressing plate 6 and the pair of press receiving plates 9, and the bathtub handrail A is attached to the side wall 1 of the bathtub. The bathtub between the pair of press plates 6 and the pair of press receiving plates 9 can be obtained by rotating the handle knob 13 of one operation handle 7 and moving the pair of press plates 6 backward simultaneously. The handrail A for bathtubs can be removed from the side wall 1 of the bathtub. Therefore, there is no need to perform the operation of turning the two handle knobs 13 to move the pair of pressing plates 6 as in the conventional case, and the labor for attaching and removing the handrail A for the bathtub can be reduced. It is. In particular, when a bathtub handrail is repeatedly attached to or removed from the same location on the side wall 1 of the bathtub, the operation of sliding the pair of press receivers 8 may be performed only when the bathtub handrail A is first attached. After that, it is only necessary to operate one operation handle 7, and the labor of attaching and detaching the bathtub to the side wall 1 is reduced.

  Here, the operation of turning the handle knob 13 of the operation handle 7 as described above, the bolt shaft 12 is rotated and screwed, and the pressing plate 6 of the pressing tool 5 is moved forward, whereby the pressing plate 6 is moved forward. In order to attach the handrail A for the bathtub with a high attachment strength, the side wall 1 of the bathtub is sandwiched between the pressure receiving plate 9 of the pressure receiving plate 8 and the press receiving plate 8 in order to attach the handrail A for the bathtub with high attachment strength. It is necessary to increase the clamping force of the side wall 1 of the bathtub by the pressing plate 6 of the tool 5 and the pressing receiving plate 9 of the pressing receiver 8, and for this purpose, the handle knob 13 needs to be tightened with a strong force. However, if the handle knob 13 is turned with an excessive force, the pressing force of the pressing plate 6 against the side wall 1 of the bathtub becomes excessive, and the side wall 1 of the bathtub may be damaged. For this purpose, in the present invention, the rotational transmission blocking mechanism 14 formed with the pair of torque lock washers 42 as described above is provided in the transmission path of the rotational force from the handle knob 13 to the bolt shaft 12.

  That is, as shown in FIG. 11 (a), the turning force when the handle knob 13 is turned and operated by the engagement of the pair of torque lock washers 42a and 42b is transmitted to the bolt shaft 12, and the bolt shaft 12 is turned. However, if the turning force when turning the handle knob 13 becomes excessive, the pair of torque lock washers 42a and 42b are disengaged as shown in FIG. 11 (b). As a result, the torque lock washer 42b is idled and the turning force for turning and operating the handle knob 13 is not transmitted to the bolt shaft 12. Therefore, even if the handle knob 13 is rotated with an excessively strong force while the pressing plate 6 of the pressing tool 5 is in contact with the side wall 1 of the bathtub, the force from the handle knob 13 is blocked by the rotation transmission blocking mechanism 14. It is not transmitted to the bolt shaft 12 and can prevent the pressing plate 6 from being pressed against the side wall 1 of the bathtub with an excessive force and prevent the side wall 1 of the bathtub from being damaged. is there.

  FIG. 18 shows another embodiment of the present invention, in which the length of the lower part of the support column 25 provided on the side piece 4 of the main body 3 is formed long and extended below the side piece 4. A grounding leg 68 is attached to the lower end of the column 25. In this case, when the bathtub handrail A is attached to the side wall 1 of the bathtub, the grounding leg 68 at the lower end of the column 25 is grounded on the bottom of the bathtub. Since the lower end of the support column 25 is grounded in this way, the weight applied when using the grip 26 of the handrail 2 provided at the upper end of the support column 25 is determined by the main body 3 attached to the upper end of the side wall 1 of the bathtub. In addition to being supported, it is also supported by a grounded support column 25 and can stably support weight.

DESCRIPTION OF SYMBOLS 1 Side wall of bathtub 2 Handrail 3 Main body tool 4 Side piece 5 Press tool 6 Press plate 7 Operation handle 8 Press receiver 9 Press receiver 10 Fixing / release means 11 Female screw tool 12 Bolt shaft 13 Handle knob 14 Rotation transmission interruption | blocking mechanism 15 Insertion hole 16 Slide piece 17 Engagement groove 18 Latch tool

Claims (3)

  A main body provided with a handrail, disposed on the upper end of the side wall of the bathtub, a side piece formed on one side of the main body so as to face one side of the side wall of the bathtub, and a side piece One pressing tool provided on the inner side, a pair of left and right pressing plates provided on the surface opposite to the side piece of the pressing tool, and provided on the outer side of the side piece, the pressing tool is moved closer to and away from the side piece. A pair of operation handles for performing an operation to move in a direction, and a pressure receiving tool that is provided in a pair on a side portion opposite to the side piece of the main body tool, and that is slidable in a direction that is independently moved toward and away from the pressing tool; A press receiving plate provided on each of the pair of press receiving members facing each of the pair of pressing plates, and a fixing / releasing means for releasably fixing the press receiving device to a position where the press receiving device is slid. The handrail for bathtubs characterized by comprising.   The operation handle is provided through the female screw provided on the side piece so as to pass through the side piece, the bolt shaft having the tip connected to the pressing tool, and the bolt shaft attached to the rear end of the bolt shaft. The handle knob is operated to move the bolt shaft forward and backward by screwing to the female thread tool, and when the force is below a predetermined force, the turning force is transmitted from the handle knob to the bolt shaft. The handrail for bathtubs according to claim 1, further comprising a rotation transmission blocking mechanism that prevents the rotational force from being transmitted to the bolt shaft.   The pressing receiver is formed with a slide piece that is slidably inserted into an insertion hole provided in the main body tool, and a plurality of the fixing / releasing means are formed on the slide piece along the sliding direction. The handrail for bathtubs according to claim 1 or 2, further comprising: an engaging groove; and a latching tool provided on the main body tool and freely engageable and disengageable with the engaging groove.

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