JP2021074352A - Handrail for bathtub - Google Patents

Abstract

To provide a handrail for a bathtub which can firmly and stably attach a handrail for a bathtub to a bathtub, even when inner and outer side surfaces of a tub wall are curved outward or inward, can expand a freedom degree of a bathtub to which the handrail can be applied and a handrail attachment position, and is excellent in versatility.SOLUTION: A handrail for a bathtub comprises: a handrail base 3 fixed to a tub wall 2; a handrail body 4 supported by the handrail base 3; and a leg 5 contacting a floor surface of a wash place. The handrail base 3 comprises a base body 7 and a clamp structure. The clamp structure comprises: a pair of fixing clamp bodies 26 fixed to the base body 7; a clamp arm 27 supported by the base body 7; a pair of movable clamp bodies 28 supported to the clamp arm 27; and an adjusting structure for operating the clamp arm 27 so as to advance/retreat. A joint surface 29 of the fixing clamp body 26 is formed of a two-dimensional plane which is curved in an outward protrusion state. The movable clamp bodies 28 are supported so as to tilt in cross and lateral directions, by a universal joint 38.SELECTED DRAWING: Figure 1

Description

The present invention relates to a handrail used by being attached to a tab wall on the apron side of a bathtub.

This type of handrail is disclosed, for example, in Patent Document 1 for bathtub handrails. The handrail for a bathtub of Patent Document 1 has a pressing portion that abuts on the outer surface of the washing area side (apron side) of the bathtub, a pressing receiving portion that abuts on the inner surface of the bathtub, and a connecting portion that connects the pressing portion and the pressing receiving portion. And, a handrail part and a leg part provided in the connecting part are provided. The connecting portion is a horizontal first side piece that supports the first contact surface of the pressing portion, a vertical second side piece that supports the second contact surface of the pressing portion, and both side pieces. It is composed of a connecting piece, and a position adjusting portion for moving the pressing portion forward and backward is provided on the outer surface of the first side piece. The handrail portion includes an oval grip portion and a pair of mounting legs fixed to the lower surface of the straight frame portion of the grip portion. The leg portion is provided with a support column fixed to the first side piece, and a ground contact portion is provided at the lower end thereof.

In the present invention, a movable clamp body that is in close contact with the inner surface of the bathtub is supported by a universal joint, and such a support structure is disclosed in the handrail for bathtub of Patent Document 2 according to the proposal of the present applicant. In the bathtub handrail of Patent Document 2, a swing plate (movable clamp body) that is in close contact with the inner surface of the bathtub is supported by a universal joint provided on the movable tool. When the rocking plate is supported via a universal joint in this way, the rocking plate can be brought into close contact with the inner surface of the bathtub made of an ascending inclined wall, and the bathtub handrail can be firmly attached and fixed to the bathtub. it can.

Japanese Patent No. 6471886 Japanese Unexamined Patent Publication No. 2007-1112429

In the handrail for bathtub of Patent Document 1, the connecting portion is pressed against the outer surface of the bathtub by rotating the handle knob of the position adjusting portion with the pressing portion applied to the inner surface of the bathtub. Can be fixed to. However, since the walls of the inner and outer surfaces of the bathtub are sandwiched between the first contact surface of the pressing portion and the second contact surface of the pressing receiving portion, the applicable bathtub structure and the position where the handrail for the bathtub can be attached. There are restrictions on. For example, when the inner and outer walls facing the apron are curved outward or inward, the first contact surface and the second contact surface cannot be brought into close contact with the inner and outer walls in a surface contact manner. It was difficult to attach the to the bathtub firmly and in a stable state. In addition, since the bathtub handrail cannot be installed near the corner of the bathtub facing the apron, the bathtub handrail must be installed at a position away from the corner, and the space for entering and exiting the bathtub is the bathtub handrail. There was a disadvantage of being narrowed down.

An object of the present invention is that the bathtub handrail can be mounted firmly and stably with respect to the bathtub even when the inner and outer surfaces of the tab wall are curved either inside or outside, and thus is applicable to the bathtub. The purpose is to provide a handrail for bathtubs with excellent versatility that can expand the degree of freedom of the handrail mounting position.

The handrail for a bathtub according to the present invention includes a handrail base 3 sandwiched and fixed to a tab wall 2 facing the washing place of the bathtub 1, a handrail body 4 supported by the handrail base 3, and a handrail that comes into contact with the floor surface of the washing place. It is provided with a pedestal 5 that supports an external force acting on the body 4 in cooperation with the handrail base 3. The handrail base 3 includes a base main body 7 and a clamp structure provided on the base main body 7 to sandwich the tab wall 2 inside and outside. The clamp structure consists of a pair of left and right fixed clamp bodies 26 fixed to the base body 7 and in contact with the outer surface 2a of the tab wall 2, a clamp arm 27 freely supported by the base body 7, and a clamp arm 27. It is provided with a pair of left and right movable clamp bodies 28 that are supported and come into contact with the inner side surface 2b of the tab wall 2, and an adjustment structure that moves the clamp arm 27 forward and backward. The joint surface 29 of the fixed clamp body 26 that contacts the tab wall 2 is formed of a two-dimensional plane that curves outwardly toward the outer surface 2a. The movable clamp body 28 in contact with the tab wall 2 is supported by a universal joint 38 provided on the clamp arm 27 so as to be tiltable back and forth and left and right.

The base body 7 is provided with a pair of left and right clamp arms 27 and an adjustment structure for individually advancing and retreating each clamp arm 27. Each clamp arm 27 has an adjustment structure and can be independently advanced and retreated.

The adjusting structure includes a slide block 43 that is guided and supported by a guide groove 20 provided in the base body 7 so as to be slidable back and forth, and an adjusting bolt 44 that is screwed into the slide block 43 to move the slide block 43 forward and backward. The clamp arm 27 is fixed to the upper side of the slide block 43.

The clamp arm 27 is fastened and fixed to an arm fastening frame 36 fixed to the upper surface of the slide block 43. A plurality of screw holes 47 for fastening the clamp arm 27 are formed in the arm fastening frame 36. When the clamp arm 27 is fastened and fixed to the arm fastening frame 36 with one bolt 35, at least two screw holes 47 are required, and the clamp arm 27 is fastened to the arm fastening frame 36 with two bolts 35. At least three screw holes 47 are required for fixing.

The joint surface 29 of the fixed clamp body 26 is formed by a partial arc surface having a first arc surface 29a and a second arc surface 29b having different bending lengths. The adjacent fixed clamp bodies 26 are arranged symmetrically on the left and right lines, and the bending length of the second arc surface 29b on the side close to the central axis of symmetry is set to be larger than the bending length of the first arc surface 29a on the side far from the axis of symmetry. Has been done. When the tab wall 2 has a front protrusion curve, the outer surface 2a of the tab wall 2 is abutted and supported by the second arc surface 29b of the fixed clamp body 26, and the tab wall 2 has a rear protrusion curve. In this case, the outer surface 2a of the tab wall 2 is contact-supported by the first arc surface 29a of the fixed clamp body 26.

The fixed clamp body 26 is fastened and fixed to the base body 7 via a spacer 32. A plurality of types of spacers 32 having different thicknesses are prepared. The fixed clamp body 26 is fastened and fixed to the base body 7 via spacers 32 having different thicknesses in response to changes in the curved surface of the outer surface 2a of the tab wall 2.

The base body 7 is provided with a vertically penetrating pillar hole 19 and a holding seat 68 for supporting the handrail support 50 of the handrail body 4. By fastening the holding block 70 facing the holding seat 68 to the base body 7 with bolts 71, the handrail support 50 can be held and fixed by the holding seat 68 and the holding block 70.

A female screw body 81 is fixed to the upper end of the pedestal 5, and a floor contact body 82 is provided to the lower end of the handrail support column 50. With the pedestal 5 internally fitted inside the handrail column 50, the female screw body 81 is screwed and connected to the adjusting screw shaft 54 fixed to the handrail column 50.

In the handrail for bathtub of the present invention, the clamp structure is formed by a pair of left and right fixed clamp bodies 26 fixed to the base body 7 and a pair of left and right fixed clamp bodies supported by the clamp arm 27 and in contact with the inner side surface 2b of the tab wall 2. A movable clamp body 28 is provided. Further, the joint surface 29 of the fixed clamp body 26 is formed by a two-dimensional plane that curves outwardly toward the outer surface 2a, and the movable clamp body 28 is a universal joint 38 provided on the clamp arm 27 in front and back and left and right. I supported it so that it could be tilted. According to such a handrail for a bathtub, two places of the outer surface 2a of the tab wall 2 curved in the front-rear direction can be received in a line contact manner by the joint surfaces 29 of the pair of fixed clamp bodies 26. Further, the two portions of the inner side surface 2b of the curved tab wall can be received in a state where the joint surfaces 41 of the pair of movable clamp bodies 28 are tilted in different directions and are in close contact with each other. Therefore, according to the handrail for bathtub according to the present invention, not only when the tab wall 2 is flat, but also when the inner and outer surfaces 2a and 2b of the tab wall 2 are curved either inside or outside, the tab wall The four points of the inner and outer surfaces 2a and 2b of 2 are firmly sandwiched between the fixed clamp body 26 and the movable clamp body 28, and the handrail for the bathtub can be firmly and stably attached to the bathtub 1. Further, since the handrail base 3 can be installed even near the corner of the tab wall 2, the degree of freedom of the applicable bathtub 1 and the handrail mounting position can be expanded, and the versatility of the handrail for the bathtub can be improved. It is possible to avoid narrowing the space for entering and exiting the bathtub with the handrail for the bathtub as much as possible.

If the base body 7 is provided with a pair of left and right clamp arms 27 and an adjustment structure for individually advancing / retreating each clamp arm 27, each clamp arm 27 can be independently advancing / retreating with the adjusting structure. Therefore, even if the front-rear thickness of the sandwiching position of the tab wall 2 is different, the movable clamp body 28 is brought into close contact with the inner side surface 2b of the tab wall 2, and the handrail base 3 is firmly and more stable with respect to the tab wall 2. Can be installed with.

An adjustment structure is formed by including a guide groove 20 provided in the base body 7, a slide block 43 guided and supported by the groove 20, and an adjustment bolt 44 for advancing and retreating the slide block 43, and above the slide block 43. When the clamp arm 27 is fixed, the clamp arm 27 is fixed to the slide block 43 which is guided and supported only by the back and forth movement in the guide groove 20 of the base body 7, so that the clamp arm 27 accompanies the slide block 43. The movable clamp body 28 can be firmly held in close contact with the inner side surface 2b of the tab wall 2 by preventing the clamp arm 27 from wobbling left and right or up and down when moving forward and backward.

When the clamp arm 27 is fastened and fixed to the arm fastening frame 36 fixed to the slide block 43, and the arm fastening frame 36 is formed with a plurality of screw holes 47 for fastening the clamp arm 27, the adjustment structure is used. In addition to being able to adjust the sandwiching interval between the fixed clamp body 26 and the movable clamp body 28, by changing the fastening position of the clamp arm 27 with respect to the arm fastening frame 36, the sandwiching interval between the fixed clamp body 26 and the movable clamp body 28 can be adjusted. It can be changed and adjusted to be large or small. Therefore, even if the front and rear thicknesses of the tab wall 2 differ depending on the bathtub manufacturer, the range of change of the sandwiching interval between the fixed clamp body 26 and the movable clamp body 28 can be expanded, and the applicable range of the handrail for the bathtub can be expanded.

The joint surface 29 of the fixed clamp body 26 is formed by a partial arc surface composed of a first arc surface 29a and a second arc surface 29b having different bending lengths, and adjacent fixed clamp bodies 26 are arranged symmetrically on the left and right lines. Then, when the bending length of the second arc surface 29b on the side close to the central axis of symmetry is set to be larger than the bending length of the first arc surface 29a on the side far from the symmetry axis, the tab wall 2 is curved forward. In the case of a shape, the outer surface 2a of the tab wall 2 can be contacted and supported by the second arc surface 29b of the fixed clamp body 26, and in the case of the tab wall 2 having a rear protruding curved shape, the outside of the tab wall 2 can be supported. The side surface 2a can be abutted and supported by the first arc surface 29a of the fixed clamp body 26. Therefore, the joint surface 29 of the fixed clamp body 26 is stable on the outer surface 2a of the tab wall 2 regardless of whether the tab wall 2 has a front protrusion curve or the tab wall 2 has a rear protrusion curve. The handrail base 3 can be firmly attached to the tab wall 2 by joining them in this state.

When the fixed clamp body 26 is fastened and fixed to the base body 7 via the spacer 32, and a plurality of types of spacers 32 having different thicknesses are prepared, the curved surface of the outer surface 2a of the tab wall 2 changes. Correspondingly, the fixed clamp body 26 can be joined and fixed to the base body 7 by using spacers 32 having different thicknesses. For example, when the outer surface 2a of the tab wall 2 is formed by a gently S-shaped curved surface, the front-rear position of each fixed clamp body 26 is adjusted by spacers 32 having different thicknesses to fix the clamp. The joint surface 29 of the body 26 can be securely joined to the outer surface 2a of the curved tab wall 2.

The base body 7 is provided with a pillar hole 19 for supporting the handrail support column 50 of the handrail body 4 and a holding seat 68, and the holding block 70 facing the holding seat 68 is fastened to the base body 7 with a bolt 71. Therefore, when the handrail support 50 is fixed to the handrail base 3, the handrail body 4 can be steplessly adjusted up and down in the state where the bolt 71 is loosened, and the direction of the handrail body 4 can be further adjusted to the handrail support. Since the position can be adjusted to an arbitrary position around 50, the position of the handrail body 4 can be freely adjusted according to the physical condition, physical strength, or preference of the user. Further, as compared with the conventional fixing structure in which the pair of mounting legs of the handrail portion are fixed to the connecting portion with screws, the position adjustment of the handrail body 4 can be easily performed with less labor.

A female screw body 81 is fixed to the upper end of the pedestal 5, a floor contact body 82 is provided at the lower end of the pedestal 5, and the female screw body 81 is a handrail support with the pedestal 5 internally fitted inside the handrail support 50. When screwed and connected to the adjusting screw shaft 54 fixed to 50, the floor contact height of the handrail base 3 can be adjusted steplessly by adjusting the degree of screwing of the pedestal 5 into the adjusting screw shaft 54. Therefore, the floor contact height of the handrail base 3 can be appropriately adjusted according to the difference in the height of the tab wall 2, and the handrail base 3 can be reliably supported by the pedestal 5. In addition, the floor contact height of the handrail base 3, which is indispensable when installing the handrail for bathtub, can be easily adjusted with less effort.

FIG. 5 is a cross-sectional view taken along the line AA in FIG. 5 showing a handrail for a bathtub according to the present invention. It is a top view of the bathtub which shows the application example of the handrail for a bathtub which concerns on this invention. It is a side view of the handrail for a bathtub attached to a tab wall. FIG. 5 is a cross-sectional view taken along the line BB in FIG. FIG. 5 is a cross-sectional view taken along the line CC in FIG. It is an exploded sectional view of a handrail base. FIG. 5 is a cross-sectional view taken along the line DD in FIG. FIG. 5 is a cross-sectional view taken along the line EE in FIG. It is an exploded perspective view which shows the support structure of the movable clamp body. It is an exploded perspective view which shows the fixing structure of a clamp arm. It is a partially broken front view which shows the structure of a pedestal. It is sectional drawing which shows the support structure of the handrail main body. FIG. 11 is a cross-sectional view taken along the line FF in FIG. It is a perspective view which shows the fixed clamp body and a spacer. It is sectional drawing which shows the use example of the spacer according to the curved shape of a tab wall.

(Example) Examples of the handrail for a bathtub according to the present invention are shown in FIGS. 1 to 15. The front / rear, left / right, and up / down in the present invention are based on the crossing arrows shown in FIGS. In FIGS. 2 and 3, reference numeral 1 is a bathtub, and 2 is a tab wall facing the washing place of the bathtub 1, and a handrail for a bathtub according to the present embodiment is installed in the vicinity of a corner portion of the tab wall 2. The tab wall 2 viewed from a flat surface is curved in a front-protruding shape. The handrail for the bathtub has a handrail base 3 sandwiched and fixed to the tab wall 2, a handrail body 4 supported by the handrail base 3, and an external force acting on the handrail body 4 in contact with the floor surface of the washing place. It is composed of pedestals 5 and the like that support in cooperation with.

The handrail base 3 has a base body 7, a clamp structure provided on the body 7 to sandwich the tab wall 2 inside and outside, and a front upper block 8 and a rear upper block fixed to the front upper surface and the rear upper surface of the base body 7. It is composed of 9, a rear lower block 10 fixed to the lower surface of the rear portion of the base main body 7, a main body cover 12 that covers these members from the lower surface side, a lid cover 13 that covers the upper surface of the base main body 7, and the like. The front upper block 8 and the rear upper block 9 are provided to fasten the main body cover 12, the rear lower block 10, the fixed clamp body 26, and the like to the base main body 7, and the main body cover 12 and the rear upper block 9 are provided in each of the blocks 8 and 9. A nut 15 corresponding to three bolts (hexagon socket head cap screw) 14 inserted from the lower surface side of the rear lower block 10 is provided (see FIG. 4). A cushion material 16 is fixed to the lower surface of the rear lower block 10. The base main body 7, the front and rear upper blocks 8 and 9, the rear lower block 10, the main body cover 12, and the lid cover 13 are all made of plastic molded products. As shown in FIG. 1, arm passages 11 for supporting the front-rear halfway portion of the clamp arm 27, which will be described later, are provided on the left and right sides of the rear end surface of the rear lower block 10.

As shown in FIG. 5, a boss 18 for assembling the handrail column 50 of the handrail body 4 is formed near the center of the base body 7, and a posthole 19 is formed in the center of the boss 18 so as to penetrate vertically. There is. Further, on the left and right sides of the boss 18, guide grooves 20 having a convex cross section for supporting an adjustment structure described later are formed, and front and rear frames 21 and rear frames 22 are overhanging and formed in front of and behind the boss 18. The front and rear upper blocks 8.9 and the rear lower block 10 are fastened to the upper and lower surfaces of both frames 21 and 22. A connecting hole 23 for assembling the tubular wall 13a of the lid cover 13 is formed on the upper portion of the boss 18 (see FIG. 4).

The clamp structure consists of a pair of left and right fixed clamp bodies 26 fixed to the base body 7 and in contact with the outer surface 2a of the tab wall 2, a pair of left and right clamp arms 27 that are freely supported by the base body 7 and clamped. It is provided with a pair of left and right movable clamp bodies 28 supported by the arm 27 and in contact with the inner side surface 2b of the tab wall 2, and an adjustment structure for moving the clamp arm 27 forward and backward. The joint surface 29 of the fixed clamp body 26 is formed of a two-dimensional plane that curves outwardly toward the outer surface 2a of the tab wall 2, and the joint surface 29 is a cushion made of rubber or the like in order to prevent the tab wall 2 from being damaged. Formed of wood.

As shown in FIG. 5, the joint surface 29 of the fixed clamp body 26 is formed of a partial arc surface having a first arc surface 29a and a second arc surface 29b having different bending lengths. Further, the fixed clamp bodies 26 adjacent to the left and right are arranged symmetrically on the left and right lines, and the curvature length of the second arc surface 29b on the side close to the center axis of symmetry is the curvature of the first arc surface 29a on the side far from the axis of symmetry. It is set larger than the length. When the outer surface 2a of the tab wall 2 is formed in a front protruding curved shape, the outer surface 2a is mainly received by the adjacent second arc surface 29b, and the outer surface 2a of the tab wall 2 has a rear protruding curved shape. When formed in, the outer surface 2a is mainly received by the adjacent first arc surface 29a.

As shown in FIG. 14, the fixed clamp body 26 has a petal-shaped main body portion 26a, bosses 26b for hexagon socket head bolts (bolts) 31 provided on the left and right sides of the front surface of the main body portion 26a, and a position restricting plate 26c. It is prepared in one piece. The fixed clamp body 26 is fixed to the base body 7 via the spacer 32 by screwing the hexagon socket head cap screw 31 into the female screw body 30 while the boss 26b is internally engaged from the rear surface of the base body 7. The female screw body 30 is integrally formed with the rear upper block 9 described above. As shown in FIG. 14, the spacer 32 is formed with a boss hole 32a for the boss 26b and a notch 32b for the position restricting plate 26c. In this embodiment, three types of spacers 32 having different thicknesses are prepared, and the thickness of each spacer 32 is 2.5 mm, 5 mm, and 7.5 mm in order from the thin side.

As shown in FIGS. 1 and 10, the clamp arm 27 is formed by applying a plastic coating to a recumbent L-shaped press fitting, and has two countersunk screws (bolts) 35 near the front of the horizontal arm. It is fastened and fixed to the metal arm fastening frame 36. Further, the arm fastening frame 36 is fastened and fixed to the upper surface of the slide block 43 having an adjustment structure, which will be described later, with two countersunk screws (bolts) 37. A movable clamp body 28 is supported by a cross-axis universal joint 38 at the lower part of the front surface of the vertical arm portion of the clamp arm 27. Specifically, as shown in FIG. 9, a pair of left and right brackets 39 provided on the vertical arm portion of the clamp arm 27 support the left and right axes of the universal joint 38, and a pair of upper and lower brackets provided on the rear surface of the movable clamp body 28. 40 supports the vertical shaft of the universal joint 38. By supporting the movable clamp body 28 with the universal joint 38 in this way, the movable clamp body 28 can be tilted in the left-right direction and the front-back direction according to the degree of curvature and the degree of inclination of the inner side surface 2b of the tab wall 2. Specifically, the movable clamp body 28 can be tilted left and right by 10 degrees when viewed from a plane, and can be tilted 15.5 degrees forward and 9.5 degrees backward when viewed from the side surface. The joint surface 41 of the movable clamp body 28 is made of a flat surface, and the joint surface 41 is formed of a cushioning material such as rubber in order to prevent the tab wall 2 from being damaged.

The adjustment structure consists of a metal slide block 43 having a convex cross section, which is guided and supported by a guide groove 20 provided in the base body 7 so as to be slidable back and forth, and is screwed into the slide block 43 to advance and retreat the block 43. It is provided with an adjusting bolt 44. As shown in FIG. 5, the operating head of the adjusting bolt 44 is supported by the front wall of the guide groove 20, and the screw shaft is screwed into the screw hole 45 of the slide block 43 in a front-rear penetrating manner. The operation head of the adjustment bolt 44 is covered with the front upper block 8 assembled to the base body 7, and wrench holes 46 for screwing the adjustment bolt 44 are formed on the left and right sides of the front upper block 8. .. As shown in FIG. 10, four screw holes 47 are formed in the arm fastening frame 36 at a constant pitch, and the fastening position of the clamp arm 27 with respect to the arm fastening frame 36 is set to any of three positions in the front-rear direction. By changing, the sandwiching interval between the fixed clamp body 26 and the movable clamp body 28 can be changed and adjusted to a large or small size.

The handrail body 4 includes a handrail strut 50 supported by the handrail base 3 and a handrail main body 51 mounted on the upper part of the strut 50. The handrail column 50 is formed by coating a metal round pipe with a resin coating, and a T-shaped bracket 52 is fixed to the upper end thereof, and a retaining cap 53 is fixed to the lower end thereof. Further, an adjusting screw shaft 54 for adjusting the vertical position of the pedestal 5 is fixed inside the handrail column 50, and the upper end of the adjusting screw shaft 54 is attached to an end plug 55 fixed to the upper end of the handrail column 50. It is fixed so that it cannot rotate (see FIG. 12). The handrail main body 51 is formed in a competition track shape with a pair of long side portions and curved portions continuous with the end portions of the long side portions, and has a triangular shape on the lower surface side of the middle portion of each long side portion. The connecting portion 56 is integrally formed. As shown in FIG. 3, the long side portion in the vicinity of the connecting portion 56 is bent in a V shape.

In order to support the handrail body 51 with the bracket 52 so as to be tilted up and down, a shaft passage 57 and a serration hole 58 are formed in the connecting portion 56. Further, serration holes 59 are formed indented on both side ends of the bracket 52, a boss 60 is formed in a bulge in the center thereof, and a screw hole 62 for screwing a hexagon socket head cap screw (bolt) 61 is formed in the center of the boss 60. ing. The handrail body 51 is connected to the bracket 52 via the serration shaft 63, and is fastened and fixed by the hexagon socket head cap screw 61. A boss hole 64 that fits outside the boss 60 is recessed at the end of the serration shaft 63. When connecting the handrail body 51 to the bracket 52, the posture of the handrail body 51 is adjusted with the serration shaft 63 temporarily assembled in the serration hole 58, and the serration shaft 63 is engaged with the serration hole 59 on the bracket 52 side. , Temporarily holds the handrail body 51 so that it cannot tilt. In this state, the hexagon socket head cap screw 61 is screwed into the screw hole 62 to fix the handrail body 51 to the bracket 52.

In order to support the handrail body 4 with the handrail base 3 so that the vertical position can be adjusted, a semicircular holding seat 68 is provided under the pillar hole 19 of the base body 7, and a semicircle is provided behind the holding seat 68. A hugging block 70 having a shaped hugging seat 69 is arranged so as to face each other so that the handrail support 50 can be pinched and fixed back and forth between the hugging seats 68 and 69. Bolt insertion holes 72 for hexagon socket head bolts (bolts) 71 for fastening the holding block 70 are formed on the left and right sides of the holding seat 68, and vertically elongated square positioning holes are formed under the bolt insertion holes 72. 73 is formed as a recess. Similarly, the holding block 70 is formed with a recess for accommodating the bolt insertion hole 74 and the nut 75, and a positioning shaft 76 that engages with the positioning hole 73 is projected below the bolt insertion hole 74.

A regulation cap 77 is provided on the inner surface of the main body cover 12 to prevent the operating head of the hexagon socket head cap screw 71 from loosening and moving more than necessary, and hexagons are provided on the left and right sides of the regulation cap 77 and the main body cover 12. A wrench hole 78 for screwing in the holed bolt 71 is formed. When the hexagon socket head bolt 71 is loosened, the holding seat 69 of the holding block 70 that is in close contact with the handrail support 50 is separated, so that the handrail body 4 can be steplessly adjusted up and down to a height suitable for use. In this state, the handrail body 4 can be fixed to the handrail base 3 by adjusting the orientation of the handrail body 4 around the handrail column 50 and then screwing the hexagon socket head bolt 71.

As shown in FIG. 11, the pedestal 5 is formed by coating the outer surface of a metal round pipe with a resin coating, and a female screw body 81 is fixed to the upper end thereof, and a floor contact body 82 is provided to the lower end thereof. There is. The pedestal 5 is internally fitted into the handrail column 50 and is connected to the handrail column 50 in a state where the female screw body 81 is screwed into the adjusting screw shaft 54. The peripheral surface of the female thread body 81 in this state is the inner surface of the handrail column 50. The middle part of the pedestal 5 is further received by the cap 53 fixed to the lower end of the handrail column 50. In this way, when the upper and lower two parts of the pedestal 5 are received and supported by the handrail support 50 and the cap 53, the pedestal 5 can be supported in a more stable state. The floor contact body 82 is made of a hollow tubular plastic molded product, and a non-slip 83 that is received by the floor surface of the washing place is fixed to the lower surface thereof. The floor contact body 82 is supported by a spring plug 84 fixed to the lower end of the pedestal 5 so as to be slidable up and down, and is downward by a spring 85 arranged between the spring plug 84 and the spring receiving wall on the inner surface of the floor contact body 82. It is being urged to advance to.

The bathtub handrail configured as described above can be installed by the following procedure. First, the lid cover 13 is lifted from the main body cover 12 to loosen the adjusting bolt 44, and the sandwiching distance between the fixed clamp body 26 and the movable clamp body 28 is adjusted to be larger than the front-rear thickness of the tab wall 2. Further, the hexagon socket head cap screw 71 of the holding block 70 is loosened so that the handrail support 50 can be slid up and down. The handrail base 3 in this state is temporarily attached to the tab wall 2, the fixed clamp body 26 is brought into contact with the upper part of the outer surface 2a of the tab wall 2, and the cushion material 16 of the rear lower block 10 is attached to the upper end of the tab wall 2. Place it.

With the handrail base 3 temporarily assembled, rotate the pedestal 5 to adjust the vertical height of the handrail body 4, tighten the hexagon socket head cap screw 71, and firmly fix the handrail support 50 with the holding block 70. .. Further, the adjusting bolt 44 is tightened to firmly fix the movable clamp body 28 to the inner side surface 2b of the tab wall 2. Finally, the pedestal 5 is rotated to bring the non-slip 83 of the floor contact body 82 into close contact with the floor surface of the washing place. At this time, as shown in FIG. 11, the floor contact body 82 is brought into close contact with the floor surface of the washing place in a state where the spring 85 is compressively deformed, and at the same time, an upward spring force is applied to the pedestal 5 to loosen the female screw body 81. To prevent. By loosening the hexagon socket head cap screw 61, the handrail body 4 can be tilted and adjusted around the central axis of the serration hole 59 of the bracket 52. The posture can be freely changed to a posture in which the posture is inclined downward toward the washing place or a posture in which the long side portion in the vicinity of the connecting portion 56 is inclined upward. Further, by loosening the hexagon socket head cap screw 71, the handrail body 4 can be swiveled and displaced at an arbitrary position around the central axis of the handrail support column 50 to be fixed. For example, when the handrail for the bathtub is mounted near the corner of the tab wall 2, the handrail body 4 can be swiveled and displaced so as to correspond to the direction of the wall surface of the bathroom as shown in FIG.

The fixed clamp body 26 described above is fixed to the base body 7 by using spacers 32 having different thicknesses in combination with changes in the curved surface of the tab wall 2. For example, as shown in FIG. 15, when the outer surface 2a in the vicinity of the corner portion of the tab wall 2 is curved in a gentle S shape on the front curvature surface and the rear curvature surface, the anterior curvature surface The fixed clamp body 26 facing the curvature of field is fixed to the base body 7 by using a spacer 32 having a large thickness, and the fixed clamp body 26 facing the curvature of field is fixed to the base body 7 by using a spacer 32 having a small thickness. To do. As described above, by using the spacer 32 having a different thickness depending on the difference in the curved shape of the tab wall 2, the handrail base 3 can be properly mounted in a state of facing the tab wall 2. As for the spacer 32, as shown in FIG. 5, a spacer 32 having the same thickness is used for each fixed clamp body 26, and a spacer 32 is used for one fixed clamp body 26 and the other fixed clamp body 26. There are cases where the spacer 32 is not used, and cases where two spacers 32 are used for one fixed clamp body 26 and no spacer 32 is used for the other fixed clamp body 26.

In the above embodiment, the clamp structure consists of a pair of left and right fixed clamp bodies 26 fixed to the base body 7, and a pair of left and right movable clamp bodies 28 supported by the clamp arm 27 and in contact with the inner side surface 2b of the tab wall 2. I tried to prepare. Further, the joint surface 29 of the fixed clamp body 26 is formed by a two-dimensional plane that curves outwardly toward the outer surface 2a, and the movable clamp body 28 is a universal joint 38 provided on the clamp arm 27 in front and back and left and right. I supported it so that it could be tilted.

According to such a handrail for a bathtub, two places of the outer surface 2a of the tab wall 2 curved in the front-rear direction can be received in a line contact manner by the joint surfaces 29 of the pair of fixed clamp bodies 26. Further, the two portions of the inner side surface 2b of the curved tab wall 2 can be received in a state where the joint surfaces 41 of the pair of movable clamp bodies 28 are tilted in different directions and are in close contact with each other. Therefore, according to the handrail for bathtub according to the present embodiment, the tab is not only flat but also the inner and outer surfaces 2a and 2b of the tab wall 2 are curved to either the inside or the outside. The four points of the inner and outer surfaces 2a and 2b of the wall 2 are firmly sandwiched between the fixed clamp body 26 and the movable clamp body 28, and the handrail for the bathtub can be firmly and stably attached to the bathtub 1. Further, since the handrail base 3 can be installed even near the corner of the tab wall 2, the degree of freedom of the applicable bathtub 1 and the handrail mounting position can be expanded to improve the versatility of the handrail for the bathtub, and the bathtub 1 can be used. It is possible to avoid narrowing the space for entering and exiting with the handrail for the bathtub as much as possible.

Since the base body 7 is provided with a pair of left and right clamp arms 27 and an adjustment structure for individually advancing and retreating the clamp arms 27, each clamp arm 27 can be independently adjusted for advancing and retreating with the adjusting structure. .. Therefore, even if the front-rear thickness of the sandwiching position of the tab wall 2 is different, the movable clamp body 28 is brought into close contact with the inner side surface 2b of the tab wall 2, and the handrail base 3 is firmly and more stable with respect to the tab wall 2. Can be installed with.

An adjustment structure is configured including a guide groove 20 provided in the base body 7, a slide block 43 guided and supported by the groove 20, and an adjustment bolt 44 for advancing and retreating the slide block 43, and clamped on the upper side of the slide block 43. The arm 27 was fixed. According to such an adjustment structure, the clamp arm 27 is fixed to the slide block 43 which is guided and supported only by the guide groove 20 of the base body 7, so that the clamp arm 27 accompanies the slide block 43 and moves forward and backward. At this time, the clamp arm 27 can be prevented from wobbling to the left and right or up and down, and the movable clamp body 28 can be firmly held in close contact with the inner side surface 2b of the tab wall 2.

The clamp arm 27 was fastened and fixed to the arm fastening frame 36 fixed to the slide block 43. Further, a plurality of screw holes 47 for fastening the clamp arm 27 are formed in the arm fastening frame 36. According to such a clamp structure, in addition to being able to adjust the sandwiching interval between the fixed clamp body 26 and the movable clamp body 28 with the adjusting structure, the fixed clamp body can also be changed by changing the fastening position of the clamp arm 27 with respect to the arm fastening frame 36. The sandwiching interval between the 26 and the movable clamp body 28 can be changed and adjusted to a large or small size. Therefore, even if the front and rear thickness of the tab wall 2 differs depending on the bathtub manufacturer, the range of change of the holding interval between the fixed clamp body 26 and the movable clamp body 28 is expanded to expand the applicable range of the handrail for the bathtub. it can.

The joint surface 29 of the fixed clamp body 26 is formed by a partial arc surface composed of a first arc surface 29a and a second arc surface 29b having different bending lengths. Further, the adjacent fixed clamp bodies 26 are arranged symmetrically on the left and right lines, and the bending length of the second arc surface 29b on the side close to the central axis of symmetry is set from the bending length of the first arc surface 29a on the side far from the axis of symmetry. I set it large. According to such a fixed clamp body 26, when the tab wall 2 has a front protrusion curve shape, the outer surface 2a of the tab wall 2 can be abutted and supported by the second arc surface 29b of the fixed clamp body 26, and the tab wall 2 can be supported. When is curved at the back, the outer surface 2a of the tab wall 2 can be contact-supported by the first arc surface 29a of the fixed clamp body 26. Therefore, the joint surface 29 of the fixed clamp body 26 is stable on the outer surface 2a of the tab wall 2 regardless of whether the tab wall 2 has a front protrusion curve or the tab wall 2 has a rear protrusion curve. The handrail base 3 can be firmly attached to the tab wall 2 by joining them in this state.

The fixed clamp body 26 is fastened and fixed to the base body 7 via a spacer 32, and a plurality of types of spacers 32 having different thicknesses are prepared. According to such a clamp structure, the fixed clamp body 26 can be joined and fixed to the base body 7 by using spacers 32 having different thicknesses in response to a change in the curved surface of the outer surface 2a of the tab wall 2. For example, when the outer surface 2a of the tab wall 2 is formed by a gently S-shaped curved surface, the front-rear position of each fixed clamp body 26 is adjusted by spacers 32 having different thicknesses to fix the clamp. The joint surface 29 of the body 26 can be securely joined to the outer surface 2a of the curved tab wall 2.

The base body 7 is provided with a pillar hole 19 for supporting the handrail support column 50 of the handrail body 4 and a holding seat 68, and the holding block 70 facing the holding seat 68 is fastened and fixed to the base body 7 with a bolt 71. , The handrail support 50 can be held and fixed by the holding seat 68 and the holding block 70. According to such a handrail for bathtub, when the bolt 71 is loosened, the position of the handrail body 4 can be adjusted steplessly up and down, and the direction of the handrail body 4 can be adjusted to an arbitrary position around the handrail support column 50. The position of the handrail body 4 can be freely adjusted according to the physical condition, physical strength, or preference of the user. Further, as compared with the conventional fixing structure in which the pair of mounting legs of the handrail portion are fixed to the connecting portion with screws, the position adjustment of the handrail body 4 can be easily performed with less labor.

The female screw body 81 was fixed to the upper end of the pedestal 5, and the floor contact body 82 was provided at the lower end of the pedestal 5. Further, the pedestal 5 was internally fitted and mounted inside the hollow handrail column 50, and the female screw body 81 was screwed into the adjusting screw shaft 54 fixed to the handrail column 50. According to such a handrail for a bathtub, the floor contact height of the handrail base 3 can be adjusted steplessly by adjusting the degree of screwing of the pedestal 5 into the adjusting screw shaft 54. Therefore, the floor contact height of the handrail base 3 can be appropriately adjusted according to the difference in the height of the tab wall 2, and the handrail base 3 can be reliably supported by the pedestal 5. In addition, the floor contact height of the handrail base 3, which is indispensable when installing the handrail for bathtub, can be easily adjusted with less effort.

In the above embodiment, the joint surface 29 of the fixed clamp body 26 is formed by a partially arcuate arc plane, but it is not necessary, and the joint surface 29 protrudes toward the outer surface 2a such as an elliptical plane or a curved plane. It can be formed in a two-dimensional plane that curves like a shape. The universal joint 38 does not have to be configured in a cross-shaped shaft, for example, a universal joint in which a plurality of balls and grooves for guiding the transition of the balls are formed between the spherical shaft and the spherical socket covering the outer surface of the spherical shaft. There may be. The holding seats 68 and 69 do not have to be formed in a semicircular shape, and may be any seating surface having a plurality of seating surfaces circumscribing the handrail support column 50. Further, the adjusting structure is preferably provided corresponding to each clamp arm 27, but may be an adjusting structure in which each clamp arm 27 is moved forward and backward at the same time.

1 Bathtub 2 Tab wall 2a Outer surface of tab wall 2b Inner surface of tab wall 3 Handrail base 4 Handrail body 5 Leg pillar 7 Base body 19 Pillar hole 20 Guide groove 26 Fixed clamp body 27 Clamp arm 28 Movable clamp body 29 Fixed clamp body Joint surface 32 Spacer 36 Arm fastening frame 41 Joint surface of movable clamp body 43 Slide block 44 Adjusting bolt 50 Handrail strut 51 Handrail body 54 Adjusting screw shaft 68 Holding seat 70 Holding block 71 Bolt 81 Female screw body 82 Floor contact body

Claims (8)

The handrail base (3) sandwiched and fixed to the tab wall (2) facing the washing place of the bathtub (1), the handrail body (4) supported by the handrail base (3), and the floor surface of the washing place are in contact with each other. It is equipped with a pedestal (5) that supports the external force acting on the handrail body (4) in cooperation with the handrail base (3).
The handrail base (3) is provided with a base body (7) and a clamp structure provided on the base body (7) to sandwich the tab wall (2) inside and outside.
The clamp structure is supported by a pair of left and right fixed clamp bodies (26) fixed to the base body (7) and in contact with the outer surface (2a) of the tab wall (2), and the base body (7) so as to be movable back and forth. Clamp arm (27), a pair of left and right movable clamp bodies (28) supported by the clamp arm (27) and in contact with the inner surface (2b) of the tab wall (2), and the clamp arm (27) advance and retreat. Equipped with an adjustment structure to operate,
The joint surface (29) of the fixed clamp body (26) that contacts the tab wall (2) is formed by a two-dimensional plane that curves outwardly toward the outer surface (2a).
A handrail for a bathtub, wherein a movable clamp body (28) in contact with a tab wall (2) is supported by a universal joint (38) provided on a clamp arm (27) so as to be tiltable back and forth and left and right. The base body (7) is provided with a pair of left and right clamp arms (27) and an adjustment structure for individually advancing and retreating each clamp arm (27).
The handrail for a bathtub according to claim 1, wherein each clamp arm (27) can be independently adjusted in advance and retreat with an adjustment structure. The adjustment structure is a slide block (43) that is guided and supported by a guide groove (20) provided in the base body (7) so as to be slid back and forth, and a slide block (43) that is screwed into the slide block (43) to move the slide block (43) forward and backward. Including the adjusting bolt (44)
The handrail for a bathtub according to claim 1 or 2, wherein the clamp arm (27) is fixed to the upper side of the slide block (43). The clamp arm (27) is fastened and fixed to the arm fastening frame (36) fixed to the upper surface of the slide block (43).
The handrail for a bathtub according to claim 3, wherein a plurality of screw holes (47) for fastening the clamp arm (27) are formed in the arm fastening frame (36). The joint surface (29) of the fixed clamp body (26) is formed by a partial arc surface having a first arc surface (29a) and a second arc surface (29b) having different bending lengths.
The adjacent fixed clamp bodies (26) are arranged symmetrically on the left and right lines, and the curvature length of the second arc plane (29b) on the side close to the central axis of symmetry is the first arc plane (29a) on the side far from the axis of symmetry. It is set larger than the bending length of
When the tab wall (2) is curved forward, the outer surface (2a) of the tab wall (2) is abutted and supported by the second arc surface (29b) of the fixed clamp body (26). Claim that when the tab wall (2) has a back-protruding curved shape, the outer surface (2a) of the tab wall (2) is contact-supported by the first arc surface (29a) of the fixed clamp body (26). The handrail for the bathtub according to any one of 1 to 4. The fixed clamp body (26) is fastened and fixed to the base body (7) via a spacer (32).
Multiple types of spacers (32) with different thicknesses are available.
A claim in which a fixed clamp body (26) is fastened and fixed to a base body (7) via spacers (32) having different thicknesses in response to a change in the curved surface of the outer surface (2a) of the tab wall (2). The handrail for a bathtub according to any one of items 1 to 5. The base body (7) is provided with a vertically penetrating pillar hole (19) and a holding seat (68) for supporting the handrail support (50) of the handrail body (4).
By fastening the hugging block (70) facing the hugging seat (68) to the base body (7) with a bolt (71), the handrail support (50) is fastened to the hugging seat (68) and the hugging block. The handrail for a bathtub according to any one of claims 1 to 6, which can be held and fixed in (70). A female screw body (81) is fixed to the upper end of the pedestal (5), and a floor contact body (82) is provided to the lower end of the handrail support (50).
Claim 7 in which the female screw body (81) is screwed and connected to the adjusting screw shaft (54) fixed to the handrail support (50) with the pedestal (5) fitted inside the handrail support (50). Handrail for bathtub described in.

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