JP6890984B2 - Handrail for bathtub - Google Patents

Description

The present invention is a bathtub handrail that is placed on the upper surface of the bathtub side wall and can be detachably attached to the bathtub side wall by clamping the bathtub side wall from both sides. The generation of stress (friction force) due to misalignment is prevented, and by providing a guide portion having an inclined surface or the like formed so as to gradually reduce the thickness of the abutting portion, the abutting portion can be attached at the time of mounting. The present invention relates to a handrail for a bathtub that strongly prevents the inconvenience of riding on the upper surface of the side wall of the bathtub.

Conventionally, a bathtub handrail that can be detachably attached by clamping the side wall of the bathtub from the washing area side and the bathtub side so that the elderly can easily support the body when entering and exiting the bathtub has been used. Are known.

In addition, the bathtub is made of a strong member that integrates the inner and outer walls of the bathtub, and the shape of the bathtub has been changed from the conventional bathtub, which has a relatively simple shape such as a cube, to a unitized bathtub and higher functionality. With the sophistication of design, the inner wall of the bathtub is made of strong material, and the outer wall other than the rim of the bathtub is made of non-strength removable veneer (apron). There are various types of bathtubs, including the latest unit baths, whose shapes have become more complicated.

Therefore, a bathtub made of a member having relatively strong inner and outer walls, such as a conventional bathtub, is described in, for example, Japanese Patent Application Laid-Open No. 2011-189069 (Patent Document 1). In addition, a bathtub handrail of the type that clamps the side wall of the bathtub from the washing area side and the bathtub side by the pressing plate and the pressing receiving plate that have substantially the same contact area and are arranged so as to be substantially mirror-symmetrical. It is provided. Further, a bathtub having strength in the inner wall of the bathtub but not having strength in the outer wall other than the rim portion, such as the latest unit bath, is described in, for example, Japanese Patent Application Laid-Open No. 2015-173699 (Patent Document 2). As shown above, a pressing plate flattened in the vertical direction that contacts only the strong upper rim portion is arranged on the washing place side, and a pressing receiving plate having a wider contact area than the pressing plate is placed on the bathtub side. By arranging, a bathtub handrail of a type that clamps the side wall of the bathtub from the washing place side and the bathtub side is provided.

However, there is a problem that it is difficult for a user of a bathtub handrail who does not have specialized knowledge about a bathtub to accurately determine the type of a bathtub and select a bathtub handrail suitable for the type. In this way, with conventional bathtub handrails, it was necessary to select a type of bathtub handrail that suits the type of bathtub to be installed, so any shape and structure can be used regardless of the type of bathtub. There has been a long-awaited development of a highly versatile bathtub handrail that can be easily attached to the side wall of the bathtub.

Further, in the case of the handrails for bathtubs described in Patent Documents 1 and 2, since the side wall of the bathtub is clamped by pressing the pressing plate supported by the side wall mounting frame against the bathtub, FIG. a) As shown in (b), when the pressing plate is pressed against the side wall of the bathtub, the handrail supported by the side wall mounting frame is conversely separated from the side wall of the bathtub (the center of the handrail and the side wall of the bathtub). distance L ₂₎ between the center, not only it is impossible to attach the handrail at the mounting position originally planned (the distance between the centers of tub side wall of the handrail L _1), extremely unstable even mounted state There was a problem of becoming.

In particular, in the bathtub handrails described in Patent Documents 1 and 2, when the pressing plate is pressed against the side wall of the bathtub, the side wall mounting frame placed directly on the side wall of the bathtub moves relative to the side wall of the bathtub. A stress (friction force) will be generated between the side wall mounting frame and the upper surface of the bathtub side wall. As a result, even if the pressing plate is pressed against the side wall of the bathtub, the side wall mounting frame cannot move sufficiently, and due to elastic deformation of rubber or the like, internal stress (friction) is generated between the side wall mounting frame and the upper surface of the bathtub side wall. As a result of the accumulation of force), the bathtub railing and the side wall of the bathtub are deformed, or unintended internal stress (friction force) is released, causing further positional deviation between the side wall mounting frame and the upper surface of the side wall of the bathtub. There was an essential problem.

Further, in the handrail for bathtub described in Patent Document 2, the center of the pressing portion of the pressing plate that presses only the upper rim portion of the outer wall of the bathtub and the pressing of the pressing receiving plate that presses the inner wall of the bathtub in the region below the pressing plate. Since the center of the portion is eccentric in the vertical direction, a moment is generated in the handrail for the bathtub to incline the side wall of the bathtub in the inward and outward directions. Therefore, in the case of the bathtub handrail described in Patent Document 2, the legs must always be attached to prevent the bathtub handrail from tilting, regardless of the type of bathtub to be attached. There was a problem that the structure and installation work became complicated.

On the other hand, regarding the problem that the handrail is separated from the side wall of the bathtub when the handrail for the bathtub is attached and the problem that the mounting position of the handrail is displaced or stress is generated due to the positional deviation, for example, Japanese Patent Application Laid-Open No. 2000 As described in Japanese Patent Application Laid-Open No. 336882 (Patent Document 3), the handrail arranged on the washing place side is attached to the side wall mounting frame directly placed on the side wall of the bathtub, and the pressing plate is a handrail. A bathtub handrail that solves the above problem is provided by attaching it to a connecting frame arranged on the opposite side of the bathtub so that it can be moved forward and backward.

However, in the case of the handrail for a bathtub described in Patent Document 3, since it basically has a substantially U-shape downward, it should be covered from above to below the side wall of the bathtub at the time of installation. Temporarily placed in. Therefore, in order to adapt to the steps on the outer wall of the bathtub, if the contact portion protruding from the foot plate of the straddling member is attached to the handrail for the bathtub in advance, the contact portion will be the side wall of the bathtub at the time of attachment. It is expected that there will be a problem that it will run on the upper surface and be installed in an incomplete position and state.

Japanese Unexamined Patent Publication No. 2011-189069 Japanese Unexamined Patent Publication No. 2015-173699 Japanese Unexamined Patent Publication No. 2000-336882

Therefore, the present invention is a bathtub handrail that is placed on the upper surface of the bathtub side wall and can be detachably attached by clamping the bathtub side wall from the washing place side and the bathtub side, and particularly the position of the handrail (handle) at the time of attachment. The generation of stress (friction force) due to misalignment and misalignment is prevented, and when the bathtub handrail is temporarily placed so as to cover from the top to the bottom of the bathtub side wall, the contact part is the bathtub side wall. It is an object of the present invention to provide a handrail for a bathtub in which the inconvenience of riding on the upper surface of the bathtub is strongly prevented.

As a result of diligent studies on the type of bathtub, the method of attaching the bathtub handrail to the bathtub side wall by a clamp, and its structure, the present inventors have made the handrail into a frame that is directly in contact with the upper surface and the side surface of the bathtub side wall. The pressing mechanism including the pressing plate and the moving device is provided on the frame arranged on the bathtub side, and is provided with a guide portion having an inclined surface or the like formed so as to gradually reduce the thickness of the contact portion. We have found that the object can be achieved and have completed the present invention.

That is, according to the present invention, the handrail main body is attached and the mounting portion mounted on the upper surface of the bathtub side wall and the mounting portion connected to the above-mentioned mounting portion are brought into contact with one side surface of the bathtub side wall. The main body frame having the contact base provided with the contact portion, the auxiliary frame detachably attached to the main body frame, and the side surface of the bathtub side wall to which the contact portion is in contact are It is equipped with a pressing portion that presses the other side surface on the opposite side, and a moving device that is attached to the auxiliary frame and that advances and retracts the pressing portion toward the abutting portion, and the present invention. The contact portion has an inclined surface formed so as to gradually reduce the thickness of the abutting portion from the abutting surface of the abutting portion toward the abutting base portion, a plurality of steps, or a combination of a plurality of steps or a step and a step. Provided is a bathtub handrail, characterized in that the guide portion is provided below the contact portion.

In the handrail for a bathtub of the present invention, the handrail is provided on a main body frame that can be brought into contact with the upper surface and the side surface of the side wall of the bathtub and fixed at that position, and the pressing portion is provided via an auxiliary frame connected to the main body frame. Since it is arranged on the bathtub side, the main body frame is immovable with respect to the side wall of the bath layer even if the pressing portion is moved forward and backward. Therefore, the handrail for bathtub of the present invention does not cause a positional deviation or stress (friction force) between the main body frame and the upper surface of the side wall of the bathtub even when the pressing portion is pressed against the side wall of the bathtub, and is in an extremely stable state. Can be attached.

Further, in the handrail for a bathtub of the present invention, the contact portion attached to the contact base of the main body frame is located at the lower part of the contact portion from the contact surface of the contact portion toward the contact base. An inclined surface formed so as to gradually reduce the thickness of the surface, a plurality of steps, or a guide portion having a combination of the inclined surface and the step can be provided.

Since the handrail for a bathtub of the present invention basically has a substantially U-shape downward, when it is attached, it is temporarily placed so as to cover it from above to below the side wall of the bathtub. For this reason, if the bathtub handrail is provided with a contact portion protruding from the contact base of the main body frame in order to adapt to a step on the outer wall of the bathtub, the corresponding contact portion is on the upper surface of the side wall of the bathtub at the time of installation. There is a danger that it will run over and be installed in an incomplete position or condition.

However, as in the present invention, an inclined surface, a plurality of steps or inclinations formed at the lower part of the abutting portion so as to gradually reduce the thickness of the abutting portion from the abutting surface of the abutting portion toward the abutting base portion. If a guide portion having a combination of a surface and a step is provided, the problem that the contact portion rides on the upper surface of the side wall of the bathtub at the time of installation is solved. Installation in the state can be reliably prevented.

As described above, since the guide portion is provided at the lower part of the contact portion to prevent the contact portion from riding on the upper surface of the side wall of the bathtub at the time of installation, the width dimension of the guide portion is not necessarily the contact portion. It does not have to be the same as the width dimension of, and may be shorter or longer than the width dimension of the contact portion. However, if the width dimension of the guide portion is shorter than the width dimension of the contact portion, the guide portion can be made more compact, and the guide portion is mistaken for the contact portion both visually and functionally. It is preferable because it can be prevented from being done.

The "width dimension of the guide portion" means the length in the horizontal direction in the direction orthogonal to the direction in which the contact portion and the pressing portion clamp the side wall of the bathtub in the guide portion, and the "contact portion". "Width dimension of" means the length in the horizontal direction in the direction orthogonal to the direction in which the contact portion and the pressing portion clamp the side wall of the bathtub at the contact portion, similarly to the width dimension of the guide portion. ..

If the inclined surface provided in the guide portion has a gradient so as to gradually reduce the thickness of the corresponding contact portion from the contact surface of the contact portion separated from the contact base portion toward the contact base portion, the present invention is applicable. It does not have to be continuously formed with the contact surface of the contact portion or the surface of the contact base portion, and may be connected from the contact surface of the contact portion or the surface of the contact base portion via a step.

Further, when a step is provided in the guide portion, the edge of the upper surface of the side wall of the bathtub is generally provided with an R having a predetermined radius, so that the horizontal depth of the step is the upper surface of the side wall of the bathtub. If it is smaller than the radius of the edge portion, the contact portion will not run on the upper surface of the side wall of the bathtub at the time of installation. Therefore, the step in the guide portion preferably has a horizontal depth of 1 mm or more and 12 mm or less, and more preferably 1 mm or more and 6 mm or less. Further, the step may be a combination of a plurality of steps, or may be further combined with the above-mentioned inclined surface.

The "horizontal direction of the step" means the horizontal direction in the direction orthogonal to the contact base of the main body frame and the contact surface of the contact portion, and when the bathtub handrail is attached to the side wall of the bathtub. It is also parallel to the upper surface of the bathtub side wall and substantially coincides with the direction in which the bathtub side wall is clamped by the contact portion and the pressing portion. For this reason, the "horizontal depth of the step" means the distance from the front to the back of the step in the direction in which the contact portion and the pressing portion clamp the side wall of the bathtub, and usually forms one end of the step. Approximately coincides with the distance from the recessed corner to the bulging corner forming the other end.

The handrail for a bathtub of the present invention is provided on the main body frame, and the thickness of a part of the contact portion that comes into contact with the outer wall of the bathtub is changed so as to be thicker or thinner than the thickness of the remaining region. It can also be thickened or thinned. Therefore, in principle, the handrail for a bathtub of the present invention does not choose the shape and type of the bathtub, and even if the inner wall and the outer wall of the bathtub are made of a strong member, the inner wall of the bathtub has the strength. The outer wall other than the rim portion can be attached even if the bathtub has no strength.

For example, when the outer wall of the bathtub has a step and has strength, the handrail for the bathtub of the present invention abuts by adjusting the thickness of a part of the abutting portion so as to follow the shape of the wall surface. The pressing force (reaction force) of the portion can be dispersed over the entire contact surface so as to face the pressing force of the pressing portion at a position substantially mirror-symmetrical (see FIGS. 15 (a) and 15 (c)). Therefore, the bathtub handrail of the present invention can form a balanced clamp state inside and outside the bathtub side wall without causing a rotational moment in the bathtub handrail. In addition, when the pressing force (reaction force) of the contact portion is dispersed, the pressing force (reaction force) per unit area is also reduced, so that the risk of damaging the side wall of the bathtub is reduced and the handrail for the bathtub is attached. The strength range (applicable range) of the side wall of the bathtub where is allowed is also expanded.

Further, when the outer wall of the bathtub has a step and has no strength other than the rim portion, the handrail for the bathtub of the present invention makes the thickness of a part of the contact portion larger than the thickness of the remaining region. The pressing force (reaction force) of the contact portion can be applied only to the rim portion of the outer wall of the bathtub by preparing a thickened or thinned one in advance or adjusting the thickness of a part of the contact portion. Can be focused on. Therefore, the handrail for a bathtub of the present invention can be firmly attached to a bathtub whose outer wall other than the rim portion does not have strength, and a portion (apron, makeup) having no strength other than the rim portion. It is also possible to prevent damage to the plate) (see FIGS. 14 (a) and 14 (b)).

In the present invention, the thickness of a part of the contact portion is thickened or thinned by forming the contact portion with a block that is detachably attached to a part of the contact base of the main body frame. Will be done. That is, by mounting a block having a predetermined thickness and an area smaller than the contact base portion, for example, in the upper region or the lower region of the contact base portion, the thickness of a part region of the contact portion can be changed to the thickness of the remaining region. It can be thicker or thinner than the above.

Further, in the present invention, the contact portion can be detachably attached to the contact base of the main body frame by changing the thickness of the entire region of the contact portion and increasing or reducing the thickness of a part of the region. This is achieved by forming the contact portion with a plurality of blocks divided in the vertical direction. That is, a plurality of blocks having a predetermined thickness and an area smaller than that of the contact base are uniformly mounted on the surface of the contact base, or all the blocks among the plurality of blocks are attached and detached. Thereby, the thickness of the entire area of the contact portion can be changed. Further, by removing a part of the blocks, the thickness of a part of the contact portion can be made thicker or thinner than the thickness of the remaining part.

It is preferable that the contact portion is provided with an elastic rubber that can be detachably attached to the surface of the contact base or the surface of the block for the purpose of improving the grip force by preventing slipping and preventing damage to the side wall of the bathtub.

In the present invention, when the abutting portion includes a plurality of blocks, it is preferable that at least two blocks out of the plurality of blocks have different widths in the vertical direction. When the contact portion is provided with blocks having different widths, the contact portion is made to follow the step shape even when the bathtub side wall has various steps having different widths (heights) in the vertical direction. (See FIGS. 15 (a) and 15 (c)), the contact can be made locally according to the step shape (see FIGS. 14 (a) and 14 (b)).

Further, in the present invention, the block constituting the contact portion is replaced with another block having the same or different size and thickness, or another block having the same or different size and thickness is further mounted on the block. By doing so, the thickness of the entire region of the abutting portion can be changed, or the thickness of a part of the abutting portion can be made thicker or thinner than the thickness of the remaining region.

In the present invention, the blocks can also be composed of detachably stacked sub-blocks of the same or different thickness. When the blocks are composed of laminated sub-blocks of different thicknesses, the entire area or a part of the contact portion can be changed to various thicknesses by changing the number of stacked sub-blocks and the combination of the stacked sub-blocks. can do. As a result, even when the side wall of the bathtub has various unevenness steps, the contact portion can be brought into contact with the unevenness of the step by following the unevenness of the step, or locally according to the unevenness of the step. It can also be brought into contact. Further, if the sub-block is configured as a thin plate-shaped part, the thickness of the contact portion can be finely adjusted.

In the present invention, the connection between the block and the contact base of the main body frame and the connection between the block and other blocks are provided by providing a convex portion on the contact base and / or the surface of the block, and the convex portion on the back surface of the block. This is achieved by providing a recess to be fitted and fitting the recess of the block into the abutment base or the protrusion of another block. A plurality of convex portions provided on the front surface of the contact base and / or the block and a plurality of concave portions provided on the back surface of the block may be arranged, and contrary to the above-described configuration, the concave portions may be provided as the contact base portion and / or the concave portion. Alternatively, it may be provided on the front surface of the block and the convex portion may be provided on the back surface of the block.

As described above, in the present invention, the connection between the block and the contact base and the connection between the block and other blocks have a fitting structure with recesses and protrusions that cannot be physically moved in the direction orthogonal to the fitting direction. Since it is used, even if a lateral force such as tilting to the handrail is applied, a positional deviation may occur between the block and the contact base and between the block and another block. Absent.

Further, the block is attached to the contact base or another block by using a fastener such as a screw for the purpose of further strengthening the prevention of the above-mentioned misalignment or for the purpose of completely preventing the block from being unexpectedly separated from the contact portion. It may be screwed.

In recent years, unit baths are configured with the upper part of the outer wall of the bathtub as a rim part that has strength continuous with the inner wall, and the lower part of the rim part as a removable apron that has no strength in consideration of design and maintainability. Often. Therefore, if the thickness of the upper region of the contact portion of the main body frame is made thicker or thinner than the thickness of the lower region, it often occurs in the upper portion of the outer wall of the bathtub (the connecting portion between the rim portion and the apron). Since the step can be easily absorbed, the handrail for bathtub of the present invention can be applied to most types of unit baths.

Further, the bathtub handrail of the present invention has an extension portion in which the mounting portion mounted on the upper surface of the side wall of the bathtub extends outward from the grip support portion in the width direction of the mounting portion. Therefore, even if a force is applied to the upper grip of the handrail body in the horizontal direction along the longitudinal direction of the bathtub side wall, the rotational moment acting on the handrail body is generated by the extension portion coming into contact with the upper surface of the bathtub side wall. Since it is supported, it is possible to strongly prevent the bathtub handrail from rotating or tipping over in the longitudinal direction of the bathtub side wall on the upper surface of the bathtub side wall. In the bathtub handrail of the present invention, even if a force is applied to the upper grip in the horizontal direction along the thickness direction of the bathtub side wall, the clamp mechanism consisting of the contact portion and the pressing portion is provided, and the bathtub handrail is used for the bathtub. It plays a role of strongly preventing the side wall from rotating or falling in the thickness direction.

More specifically, since the horizontal force applied to the upper grip of the handrail body along the longitudinal direction of the bathtub side wall is transmitted to the mounting portion via the grip support portion connected to the upper grip, A force that rotates or overturns the handrail body in the longitudinal direction of the side wall of the bathtub is exerted around the attachment portion between the grip support portion and the mounting portion. However, since the mounting portion of the main body frame is provided with an extension portion extending outward from the mounting portion of the grip support portion and the mounting portion, the grip support portion and the mounting portion are mounted on the handrail main body. Even if a force is applied to rotate or tip the bathtub side wall in the longitudinal direction around the attachment part with the placement part, the extension part becomes an arm supported on the upper surface of the bathtub side wall to rotate the handrail body. It can be strongly blocked.

In other words, the handrail for a bathtub of the present invention is provided with an extending portion extending outward from the mounting portion of the grip support portion and the mounting portion in the width direction of the mounting portion of the main body frame. Therefore, the center of rotation of the handrail body when a force is applied in the horizontal direction along the longitudinal direction of the side wall of the bathtub is substantially provided from the attachment portion between the grip support portion and the mounting portion to the mounting portion. It will move to the edge of the extended extension. Therefore, in order to rotate the handrail body, it is not enough to apply only the horizontal force to the upper grip, but to lift the mounting part between the grip support part and the mounting part, and to apply a force upward than the horizontal direction. Need to add. Therefore, in the bathtub handrail of the present invention, which has an extension portion extending outward from the grip support portion, the grip support portion is attached to the end portion of the mounting portion, and the extension portion is provided. Compared to the handrails for bathtubs that do not have, the structure is such that it is less likely to rotate or tip over on the upper surface of the side wall of the bathtub.

In the present invention, the "width direction of the mounting portion" means the horizontal direction in the mounting portion of the main body frame in the direction orthogonal to the direction in which the side wall of the bathtub is clamped by the contact portion and the pressing portion. When the bathtub railing is attached to the side wall of the bathtub, the direction is also substantially the same as the longitudinal direction of the upper surface of the side wall of the bathtub.

Further, since the extending portion may extend outward from the grip supporting portion in the width direction of the mounting portion, the width dimension of the mounting portion on which the extending portion is formed is the width of the contact portion. The relationship between the dimensions and the width of the contact base of the main body frame, such as length and shortness, is not required. Therefore, in the present invention, the width dimension of the mounting portion provided with the extending portion may be the same as, for example, the width dimension of the contact portion and the width dimension of the contact base portion. It is the same, but may be longer than the width dimension of the contact base, and may be longer than, for example, the width dimension of the contact portion and the width dimension of the contact base.

Further, in the present invention, the width dimension of the mounting portion having the extending portion is the same as the width dimension of the contact portion and the width dimension of the contact base portion, that is not necessarily the width dimension of the contact portion and the width dimension of the contact base portion. It does not have to be the same as the entire width dimension of the width dimension, and may be the same as the width dimension of all or a part of the contact portion and the contact base portion. In particular, when the width dimension of the mounting portion having the extending portion is the same as the width dimension of all or a part of the contact portion, the contact portion abuts by the mounting portion regardless of the width dimension. Since the entire width of the portion can be supported or contacted, the abutting portion can be fixed to the main body frame without causing rattling or the like between the abutting portion and the mounting portion.

The extending portion is preferably provided in the end region of the mounting portion where the distance from the contact surface of the contact portion is within 10 cm, and the mounting portion where the distance from the contact surface of the contact portion is within 5 cm. It is more preferable to be provided in the end region of the. The "distance from the contact surface" is the same as the general definition of geometry, and is lowered from an arbitrary point P of the extension portion (end portion of the mounting portion) to the plane (contact surface) α. It means the length of PQ when the foot of the perpendicular is Q.

In the present invention, the main body frame is fixed at that position by placing the mounting portion on the upper surface of the side wall of the bathtub and bringing the contact portion into contact with the side surface of the side wall of the bathtub. The protruding portion will be arranged within a certain distance from the contact surface of the contact portion. Therefore, in the present invention, if the extension portion is to be arranged on the upper surface of the side wall of the bathtub with an accurate and minimum necessary size, the extension portion is placed within 10 cm from the contact surface of the contact portion. It is preferably provided in the end region of the mounting portion, and more preferably provided in the end region of the mounting portion within a distance of 5 cm from the contact surface of the contact portion.

In the present invention, the moving device for advancing and retracting the pressing portion toward the abutting portion includes a nut rotatably attached to the vertical portion of the auxiliary frame, a handle knob for rotating the nut, and the like. The tip is connected to the pressing part and is composed of a bolt that is screwed into the nut. Further, if the force is less than the predetermined force, the turning power is transmitted from the handle knob to the nut, and if the force is more than the predetermined force, from the handle knob. A torque transmission / cutoff mechanism that cuts off the transmission of rotational power to the nut can be included.

In the present invention, since the moving device is composed of nuts and bolts, the pressing portion can be easily brought close to or separated from the abutting portion by screwing back and forth of the bolt, and the state can be reliably maintained. Can be done. Further, in the present invention, the nut is rotatably attached to the vertical portion of the auxiliary frame, and the bolt and the pressing portion attached to the tip thereof are screwed back and forth by rotating the nut with the handle knob. The position of the knob does not change with respect to the vertical part. As a result, in the present invention, it is possible to prevent the handle knob from protruding from the main body of the handrail for the bathtub, which is extremely safe for the user.

Further, in the present invention, since the moving device is provided with a torque transmission / shutoff mechanism, even if the user turns the handle knob and strongly pushes the pressing portion toward the abutting portion, the side wall of the bathtub is not damaged. It can be attached to the side wall of the bathtub with sufficient pressing pressure (clamping force) by requiring the handrail for the bathtub of the present invention. Further, even if the above-mentioned torque transmission / shutoff mechanism is provided in the moving device of the pressing portion, the position of the handle knob does not change with respect to the vertical portion of the auxiliary frame.

Further, when the moving device has the nut and bolt structure as described above, the torque transmission / shutoff mechanism is provided with the first locking means provided inside the handle knob and the end of the nut. By connecting the second locking means with the engaging means, a torque transmission lock mechanism can be provided so that the turning power can always be transmitted from the handle knob to the nut even if the force exceeds a predetermined force.

If the moving device is equipped with the above-mentioned torque transmission / shutoff mechanism, the rotation of the nut is locked when the pressing portion is excessively retracted, so that the handle knob is rotated forward so that the pressing portion moves forward. However, the rotational power is not transmitted to the nut, which may cause a so-called "spinning phenomenon of the handle knob". Therefore, if the torque transmission / shutoff mechanism is provided with the torque transmission lock mechanism as described above as in the present invention, it is provided at the end of the nut and the first locking means provided inside the handle knob. Since the second locking means can be easily connected by the engaging means, the torque can always be transmitted from the handle knob to the nut even if the force exceeds a predetermined force, and as a result, the above-mentioned "handle" is used. The "knob idling phenomenon" can be easily eliminated.

Further, in the present invention, since the first locking means is provided inside the handle knob and the second locking means is provided at the end of the nut, the first locking means and the second engaging means are engaged. Since the stopping means can be easily accessed from an opening provided at the end of the handle knob, it is not necessary to secure a space for setting the engaging means on the outer peripheral portion of the handle knob, and the handle knob can be designed compactly.

In the present invention, the first locking means is composed of recesses or holes, the second locking means is also composed of recesses or holes, and the first locking means and the second locking means are further composed of recesses or holes. When the engaging means for engaging with the means is composed of the lock pin, the torque transmission lock mechanism can be configured with a simple structure, so that the reliability of the torque transmission lock mechanism is improved.

In particular, if the torque transmission lock mechanism is configured as described above, the lock pin can be easily inserted from the opening provided at the end of the handle knob toward the end of the nut, so that the outer circumference of the handle knob can be easily inserted. The recess or hole of the first locking means and the recess or hole of the second locking means can be easily engaged from the rotation axis direction of the nut without using space.

Further, the torque transmission lock mechanism is provided with a torque transmission lock mechanism because it is not necessary to provide an extra shaft length to the nut so that it can be accessed from the outer peripheral direction of the nut in order to provide the second locking means. Both the torque transmission / cutoff mechanism and the moving device provided with the torque transmission / cutoff mechanism can have a compact structure in which the shaft length is suppressed.

Specifically, the torque transmission / shutoff mechanism has a substantially circular torque transmission surface orthogonal to the rotation axis of the handle knob, and is synchronized with the rotation of the handle knob and along the rotation axis of the handle knob. An annular member slidably mounted, a nut having a substantially circular torque transmitting surface that is in contact with the torque transmitting surface and orthogonal to the rotation axis of the nut, and a flange having a second locking means. , The torque transmission surface of the annular member is composed of an elastic body that biases the torque transmission surface of the nut toward the torque transmission surface, and the torque transmission surface and the torque transmission surface are respectively less than a predetermined rotational force. The torque transmission surface and the torque transmission surface are mutually locked, and an inclined surface that causes slippage between the torque transmission surface and the torque transmission surface is provided when the transmitted torque exceeds a predetermined force. It can be configured by including a concave portion or a convex portion.

In addition, in order to improve the maintainability of the torque transmission / cutoff mechanism by facilitating the replacement of consumable parts, the torque transmission surface is detachably attached to the nut so as to synchronize with the rotation of the nut. It is preferable to form it on the annular member of.

In addition, in order to improve the maintainability of the torque transmission / shutoff mechanism by facilitating the attachment / detachment of the nut to the vertical part of the auxiliary frame, the nut is inserted into the opening provided in the vertical part of the auxiliary frame. The outer diameter of the second annular member is larger than that of the opening. Therefore, when the nut is attached, the body of the nut is inserted into the opening, and the side surface of the vertical portion with which the second annular member abuts is. It is preferable that the nut can be rotatably attached to the vertical portion by allowing the flange member having an outer diameter larger than the opening to be connected to the second annular member from the opposite side surface.

Further, in order to prevent the second annular member and the flange member from being worn and to facilitate the rotation of the nut, the vertical portion of the auxiliary frame may be sandwiched by the second annular member and the flange member via a resin washer. preferable.

In the present invention, in order to strengthen the prevention of the handrail for the bathtub from falling over and the side wall of the bathtub from falling off, the leg portion whose end abuts on the floor surface may be attached to the main body frame. In particular, when the handrail for the bathtub of the present invention is attached to a bathtub in which the inner wall of the bathtub has strength but the outer wall other than the rim portion does not have strength, even if a load is applied in the horizontal direction by the user, or inside and outside the bathtub. Even if the central position of the clamping force is eccentric, it is possible to extremely effectively prevent the bathtub rail from tilting or tipping over. Therefore, even if the inner wall and the outer wall of the bathtub are integrally manufactured, if the inside is hollow, the outer wall may not have sufficient strength. Higher safety of handrails is ensured.

In the handrail for a bathtub of the present invention, the auxiliary frame is composed of a horizontal portion attached to a mounting portion of the main body frame and a vertical portion connected to the horizontal portion and to which a moving device is attached. It is possible to select the mounting position of the horizontal portion with respect to the mounting portion so that the heads are separated from each other toward the contact portion of the main body frame. For example, by providing a plurality of through holes or slits in the mounting portion of the main body frame and providing one or a plurality of screw holes in the horizontal portion of the auxiliary frame, the horizontal portion of the auxiliary frame can be placed in the mounting portion of the main body frame. The mounting position may be variable and screwed.

For example, the mounting portion of the main body frame is provided with one or more screw holes, the horizontal portion of the auxiliary frame is also provided with one or more screw holes, and the mounting portion of the main body frame and the horizontal portion of the auxiliary frame are provided. The mounting position may be variably screwed by a connecting plate provided with a through hole or a slit.

In this way, if the auxiliary frame can be mounted on the main body frame in a variable mounting position, the distance between the contact portion of the main body frame and the pressing portion of the auxiliary frame is made as close as possible in advance according to the thickness of the side wall of the bathtub. Therefore, the moving distance of the pressing portion required for clamping the side wall of the bathtub can be minimized. As a result, there is an advantage that the moving device for moving the pressing portion forward and backward toward the contact portion can be made compact.

According to the handrail for a bathtub of the present invention, the handrail is provided on a main body frame that can be brought into contact with the upper surface and the outer wall surface of the side wall of the bathtub and fixed at that position, and the pressing portion is an auxiliary frame connected to the main body frame. Since it is arranged on the bathtub side via the bathtub, the main body frame is immovable with respect to the side wall of the bath layer even if the pressing portion is moved forward and backward. Therefore, the handrail for bathtub of the present invention does not cause a positional deviation or stress (friction force) between the main body frame and the upper surface of the side wall of the bathtub even when the pressing portion is pressed against the side wall of the bathtub, and is in an extremely stable state. Can be attached.

Further, according to the handrail for a bathtub of the present invention, an inclined surface formed at the lower part of the contact portion so as to gradually reduce the thickness of the contact portion from the contact surface of the contact portion toward the contact base. Since a guide portion having a combination of a plurality of steps or inclined surfaces and steps is provided, the problem that the contact portion rides on the upper surface of the side wall of the bathtub at the time of installation is solved, and the position of the handrail for the bathtub is incomplete. , It is possible to surely prevent the installation in the state.

It is an overall schematic view of the handrail for a bathtub of this invention. It is an exploded view of the handrail for a bathtub shown in FIG. It is a side view of the handrail for a bathtub shown in FIG. It is sectional drawing which cut out the handrail for a bathtub shown in FIG. 3 along a bolt shaft. It is an exploded view of the main body frame of the handrail for a bathtub shown in FIG. It is a schematic diagram which showed the attachment mode of the handrail main body to the main body frame of the handrail for bathtub shown in FIG. It is a perspective view (a) which showed the back surface of the main body frame of the bathtub handrail shown in FIG. 1, and the perspective view (b) which showed the front surface. It is the perspective view (a) which showed the back surface of the main body frame of the aspect different from the main body frame shown in FIG. 7, and the perspective view (b) which showed the front surface. It is a side view of the main body frame shown in FIG. 7. It is a side view of the main body frame shown in FIG. It is an exploded view which showed the state which disassembled the contact part of the main body frame into a contact base part, a block (subblock) and elastic rubber. It is an exploded view which showed the state which the auxiliary frame of the handrail for a bathtub shown in FIG. 1 was disassembled into a frame body, a moving device (including a torque transmission / shut-off mechanism, and a torque transmission lock mechanism), and a pressing part. It is the schematic which showed the torque transmission lock mechanism in the moving device shown in FIG. 12 by partially disassembling. It is a schematic diagram which shows the state which the handrail for a bathtub of this invention is attached to the side wall of the bathtub of three different shapes which the inner wall has strength, but the outer wall (apron) other than a rim part does not have strength. It is a schematic diagram which shows the state which the handrail for a bathtub of this invention is attached to the side wall of the bathtub of three different shapes which both the inner wall and the outer wall have strength. It is a schematic diagram which shows the state (a) which the handrail for a bathtub of this invention was temporarily attached to the side wall of a bathtub, and the state (b) which was actually attached. It is a schematic diagram which shows the state (a) and the state (b) which the conventional bathtub handrail of the type which presses a bathtub side wall from a washing place side is temporarily attached to the bathtub side wall, and is finally attached.

Hereinafter, the handrail for a bathtub according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the examples shown below, and various modifications can be made without departing from the technical idea of the present invention.

The main configuration of the handrail 1 for a bathtub according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 shows an overall outline of the bathtub handrail 1 according to the present embodiment, and FIG. 2 shows an aspect in which the bathtub handrail 1 shown in FIG. 1 is disassembled into main parts. Has been done.

As shown in FIGS. 1 and 2, the basic skeleton of the bathtub handrail 1 is detachably attached to the main body frame 2 which is directly mounted on the side wall of the bathtub and to the main body frame 2 via the connecting frame 32. It is composed of an auxiliary frame 3 to be formed. Further, the main body frame 2 is attached with a handrail main body 4 for supporting the user's body and legs 5 for preventing the bathtub handrail 1 from tilting. On the other hand, the auxiliary frame 3 is provided with a moving device 8 for advancing and retracting the pressing portion 6 and a side grip 40 for assisting the movement of the user in the bathtub. Further, the moving device 8 includes a handle knob 80 for rotating the nut 82 and a cap 800 thereof, and a rectangular plane is formed at the tip of the bolt 89 screwed back and forth by the rotation of the nut 82 via a connecting plate 61. A pair of plate-shaped pressing portions 6 are attached so as to swing freely.

Further, in the bathtub handrail 1 of the present embodiment, by covering the connecting frame 32 and the main body frame with the removable protective covers 33 and 24, it is possible to reduce dangerous places such as uneven parts, and usually In addition to preventing erroneous operation of unnecessary parts, it visually improves the appearance and is clean (see Fig. 2).

The handrail main body 4 includes a ring-shaped upper grip 41 having a substantially rectangular plan view, and a pair of grip support portions 42 which are connected to the upper grip 41 and are provided with a plurality of fixing holes 420. The handrail main body 4 can be adjustably fixed to an arbitrary height by inserting the insertion pin 280 of the main body frame 2, which will be described later, into the fixing hole 420 of the grip support portion 42.

Further, the leg portion 5 is provided with a main landing gear portion 50 screwed to the main body frame 2 by a screw 53 and a male screw portion screwing with a female screw portion provided inside the main landing gear portion 50 on the outer peripheral surface. It is composed of an auxiliary landing gear 51. The length of the leg portion 5 can be adjusted by rotating the auxiliary leg portion 51 with respect to the main landing gear portion 50.

FIG. 3 shows a side view of the bathtub handrail 1 according to the present embodiment, and FIG. 4 shows a cross-sectional view of the bathtub handrail 1 according to the present embodiment cut out along the bolt 89. It is shown.

As shown in FIGS. 3 and 4, the main body frame 2 of the handrail 1 for the bathtub is connected to the mounting portion 20 mounted on the upper surface of the side wall of the bathtub and the mounting portion 20 and is connected to the side wall of the bathtub. It includes a contact base portion 21 provided with a contact portion 7 that abuts on one side surface, and has a substantially L-shaped cross section pointing downward as a whole. Further, the auxiliary frame 3 detachably attached to the main body frame 2 is slidably and detachably connected to the connecting frame 32 which is slidably and detachably connected to the mounting portion 20 of the main body frame 2. It includes a horizontal portion 30 and a vertical portion 31 connected to the horizontal portion 30, and has a substantially L-shaped cross section pointing downward as a whole. Further, elastic resin rubbers 26 and 27 are mounted on the inner surface of the mounting portion 20 of the main body frame 2 and the inner surface of the contact base portion 21, and the resin having elasticity is also provided on the inner surface of the horizontal portion 30 of the auxiliary frame 3. Since the rubber 34 is attached, the side wall of the bathtub is prevented from being scratched and non-slip (see FIG. 4).

A nut 82 of the moving device 8 is rotatably attached to the vertical portion 31 of the auxiliary frame 3, and a bathtub in which the abutting portion 7 abuts on the tip of the bolt 89 that is screwed back and forth by the rotation of the nut 82. A pair of pressing portions 6 for pressing the other side surface opposite to the side surface of the side wall is attached so as to swing freely via the connecting plate 61. Further, the nut 82 is rotated by the handle knob 80 via the torque transmission / shutoff means 83 described later, and in order to eliminate the so-called “idle rotation phenomenon of the handle knob”, the nut 82 is constantly rotated from the handle knob 80 to the nut 82. A torque transmission lock mechanism 830 is provided so as to be able to transmit the torque (see FIG. 13).

In the bathtub handrail 1 of the present embodiment, the connecting frame 32 is formed with three E-shaped and two U-shaped slits 320, and the mounting portion 20 of the main body frame 2 and the horizontal of the auxiliary frame 3 are horizontal. The portion 30 is provided with screw holes 200 and 300, respectively, which are aligned with the slit 320 of the connecting frame 32 (see FIG. 2). Therefore, in the auxiliary frame 3, the horizontal portion 30 is attached to the mounting portion 20 via the connecting frame 32 so that the vertical portion 31 can be brought close to and separated from the abutting portion 7 and the abutting base portion 21 of the main body frame 2. The position can be arbitrarily selected and screwed to the main body frame 2 with screws 321.

Further, although not shown, by providing a plurality of through holes or slits in the horizontal portion of the auxiliary frame and providing one or a plurality of screw holes in the mounting portion of the main body frame, the auxiliary frame is horizontal without passing through the connecting frame 32. The portion may be directly screwed to the mounting portion of the main body frame in a variable mounting position.

As described above, the bathtub handrail 1 of the present embodiment can be mounted via the connecting frame 32 so that the horizontal portion 30 of the auxiliary frame 3 can be mounted on the mounting portion 20 of the main body frame 2 so that the mounting position can be changed. Therefore, it is necessary to make the distance between the contact base 21 and the contact portion 7 of the main body frame 2 and the vertical portion 31 and the pressing portion 6 of the auxiliary frame 3 as close as possible in advance according to the thickness of the side wall of the bathtub. Therefore, the moving distance of the pressing portion 6 required for clamping the side wall of the bathtub can be suppressed to the minimum necessary. As a result, the moving device 8 such as the bolt length for moving the pressing portion 6 forward and backward toward the contact portion 7 can be made compact.

FIG. 16 shows a state (a) in which the bathtub handrail 1 of the present embodiment is temporarily attached to the bathtub side wall 9, and a state (b) in which the handrail 1 is actually attached. Further, in FIG. 17, as a comparative example of the bathtub handrail 1 of the present embodiment shown in FIG. 16, a conventional bathtub handrail 1x of a type that presses the bathtub side wall 9 from the washing place side is applied to the bathtub side wall. The temporarily attached state (a) and the fully attached state (b) are shown.

As described above, in the bathtub handrail 1 of the present embodiment, the handrail main body 4 is attached to a main body frame 2 that can be brought into contact with the upper surface and the outer wall surface of the bathtub side wall and fixed at that position. Since the pressing portion 6 is arranged on the bathtub side by the auxiliary frame 3 connected to the main body frame 2 via the connecting frame 32, the main body frame 2 has a bath layer side wall even if the pressing portion 6 is moved forward and backward. Is immovable. Therefore, as shown in FIGS. 16A and 16B, the bathtub handrail 1 of the present embodiment has the main body frame 2 and the upper surface of the bathtub side wall 9 even if the pressing portion 6 is pressed against the bathtub side wall 9. _{(For example, the distance L 0} between the center of the handrail 4 and the center of the side wall 9 of the bathtub is constant and constant), and can be installed in an extremely stable state. ..

FIG. 5 shows an exploded view of the main body frame 2 of the bathtub handrail 1 of the present embodiment shown in FIG. FIG. 6 shows a schematic view showing how the handrail main body 4 is attached to the main body frame 2 of the bathtub handrail 1 shown in FIG.

The main body frame 2 of the present embodiment is provided with a mounting portion 20 mounted on the upper surface of the bathtub side wall and a contact portion 7 connected to the mounting portion 20 and abutted against one side surface of the bathtub side wall. The contact base portion 21 is composed of the contact base portion 21, and a grip support portion accommodating portion 22 for slidably accommodating a pair of grip support portions 42 of the handrail main body 4 is provided on the back surface of the contact base portion 21. ing. Further, the mounting portion 20 has a variable mounting position of an extending portion 25 extending outward from the grip supporting portion 42 and a connecting frame 32 connected to the auxiliary frame 3 in the width direction of the mounting portion 20. A screw hole 200 is provided for screwing the screw.

Resin rubbers 26 and 27 having elasticity that prevent damage to the side wall of the bathtub and prevent slipping are mounted on the inner surface of the mounting portion 20 of the main body frame 2 and the inner surface of the contact base portion 21, and further, the contact base portion. On the inner surface of 21, a contact portion 7 for clamping the side wall of the bathtub from the washing area side and a guide portion 70 for preventing the contact portion 7 from riding on the upper surface of the side wall of the bathtub at the time of attachment are attached by screws 712. Has been done.

In the present embodiment, the contact portion 7 and the guide portion 70 are made of resin, and are integrally molded so as to have a substantially T shape when viewed from the front. Further, the abutting portion 7 has an abutting portion main body 71, a screw 712 for screwing the abutting portion main body 71 to the abutting base portion 21, and elasticity that also prevents damage to the side wall of the bathtub and prevents slipping. Contains resin rubber 72. Further, the resin rubber 72 is formed by inserting a through hole 710 for screwing the contact portion main body 71 and a convex portion (not shown) provided on the back surface of the resin rubber 72 into the contact portion main body 71. Is provided with a rubber fixing hole 711 for detachably fixing the plastic.

As shown in FIG. 6, the contact base 21 of the main body frame 2 of the present embodiment is a cylinder for slidably supporting a pair of grip support portions 42 having a plurality of fixing holes 420 formed therein. A shaped grip support accommodating portion 22 is provided. Further, between the pair of grip support accommodating portions 22, a pair of insertion pins 280, a pair of knobs 282 attached to the rear end of the insertion pins 280, and an insertion pin 280 are placed in the grip support portion 42. An insertion / release mechanism 28 including an urging means 281 for urging toward is provided.

The insertion pin 280 is removably inserted into at least one of the plurality of fixing holes 420 of the grip support portion 42 through a through hole (not shown) of the grip support portion accommodating portion 22. Further, the urging means 281 of the vine winding spring urges the insertion pin 280 from the outside of the through hole of the grip support portion accommodating portion 22 toward the fixing hole 420 of the grip support portion 42. The knob 282 is operated by the user to apply a force to the urging means 281 along the direction opposite to the urging direction of the insertion pin 280 by the urging means 281.

As described above, in the bathtub handrail 1 of the present embodiment, the height of the grip support portion 42 of the handrail main body 4 can be adjusted to the back surface of the main body frame 2 by the grip support portion accommodating portion 22 and the insertion / release mechanism 28. It is fixed. That is, when the insertion pin 280 of the insertion / release mechanism 28 is inserted into at least one of the plurality of fixing holes 420 of the grip support portion 42, the grip support portion 42 is inserted through the insertion pin 280 of the insertion / release mechanism 28. Is connected and fixed to the main body frame 2. On the other hand, when the insertion pin 280 is not inserted into the fixing hole 420 of the grip support portion 42, the grip support portion 42 is not connected or fixed to the main body frame 2.

The insertion pin 280 is urged by the urging means 281 from the outside of the through hole of the grip support portion accommodating portion 22 toward the fixing hole 420 of the grip support portion 42. Therefore, when the user adjusts the height of the handrail main body 4 and inserts the insertion pin 280 into the fixing hole 420 of the grip support portion 42 in order to fix the height of the handrail main body 4, the grip support portion 42 is inserted. There is no need to apply force to the insertion pin 280 or screw the insertion pin 280 while supporting it. Further, since the user can operate the knob 282 to apply a force to the urging means 281 in the direction opposite to the urging direction of the insertion pin 280 by the urging means 281, the user can grip the insertion pin 280. It can also be easily removed from the fixing hole 420 of the support portion 42.

The bathtub handrail 1 of the present embodiment can easily and safely adjust the height of the handrail main body 4 by adopting the above-described configuration in the fixing means of the grip support portion 42.

Further, the bathtub handrail 1 of the present embodiment is screwed onto the reduced diameter portion 23 and the outer peripheral surface of the reduced diameter portion 23 for fixing the grip support portion 42 into the grip support portion accommodating portion 22 without rattling. The nut 230 is provided.

The reduced diameter portion 23 is a slit provided at the uppermost portion of the grip support portion accommodating portion 22. Further, a screw thread (thread groove) is provided on the outer peripheral surface of the reduced diameter portion 23, and the outer peripheral surface is tapered so that the outer diameter gradually increases from the upper side to the lower side. Therefore, when the nut 230 is attached to the thread (thread groove) of the reduced diameter portion 23 and the nut 230 is rotated so as to be screwed downward, the reduced diameter portion 23 is reduced in diameter by the nut 230, so that the grip is supported. The portion 42 can be tightened into the grip support portion accommodating portion 22 so as not to rattle.

As described above, the bathtub handrail 1 of the present embodiment adopts the above-described configuration at the uppermost portion of the grip support portion accommodating portion 22, so that the grip support portion 42 accommodated in the grip support portion accommodating portion 22 can be accommodated. It can be firmly fixed and the rattling of the grip support portion 42 can be prevented more effectively.

In the bathtub handrail 1 of the present embodiment, the mounting portion 20 mounted on the upper surface of the side wall of the bathtub extends outward from the grip supporting portion 42 in the width direction of the mounting portion 20. Since it has 25, even if a force is applied to the upper grip 41 of the handrail main body 4 in the horizontal direction along the longitudinal direction of the bathtub side wall, the extension portion 25 comes into contact with the upper surface of the bathtub side wall. Since the rotational moment acting on the sliding body 4 is supported, it is possible to strongly prevent the bathtub handrail 1 from rotating or tipping over in the longitudinal direction of the bathtub side wall on the upper surface of the bathtub side wall. In the bathtub handrail 1 of the present embodiment, even if a force is applied to the upper grip 41 in the horizontal direction along the thickness direction of the side wall of the bathtub, the clamp mechanism including the contact portion 7 and the pressing portion 6 is provided in the bathtub. It serves to strongly prevent the handrail 1 from rotating or tipping over in the thickness direction of the side wall of the bathtub.

More specifically, the horizontal force applied to the upper grip 41 of the handrail main body 4 along the longitudinal direction of the bathtub side wall is applied to the mounting portion 20 via the grip support portion 42 connected to the upper grip 41. Since it is transmitted, a force that rotates or overturns the handrail main body 4 in the longitudinal direction of the side wall of the bathtub around the attachment portion between the grip support portion 42 and the mounting portion 20 acts. However, since the mounting portion 20 of the main body frame 2 is provided with an extending portion 25 extending outward from the mounting portion of the grip supporting portion 42 and the mounting portion 20, the handrail main body 4 is provided. Even if a force is applied to rotate or overturn the bathtub side wall in the longitudinal direction around the attachment part between the grip support part 42 and the mounting part 20, the extension part 25 is supported on the upper surface of the bathtub side wall. Therefore, the rotation of the handrail main body 4 can be strongly prevented.

In other words, the bathtub handrail 1 of the present embodiment extends outward from the attachment portion between the grip support portion 42 and the mounting portion 20 in the width direction of the mounting portion 20 of the main body frame 2. Since the extension portion 25 is provided, the center of rotation of the handrail main body 4 when a force is applied in the horizontal direction along the longitudinal direction of the side wall of the bathtub is substantially the grip support portion 42 and the mounting portion 20. It will move from the attachment portion with and to the edge portion of the extension portion 25 provided on the mounting portion 20. Therefore, in order to rotate the handrail main body 4, it is not enough to apply only the horizontal force to the upper grip 41, and it is more than the horizontal direction to lift the mounting portion between the grip support portion 42 and the mounting portion 20. It will be necessary to apply an upward force. Therefore, in the bathtub handrail 1 of the present embodiment having the extending portion 25 extending outward from the grip supporting portion 42, the grip supporting portion 42 is attached to the end portion of the mounting portion 20. Compared to the bathtub handrail 1 which does not have the extension portion 25, the structure is such that it is less likely to rotate or tip over on the upper surface of the side wall of the bathtub.

FIG. 7 shows a perspective view (a) showing the back surface of the main body frame 2 of the bathtub handrail 1 shown in FIG. 1 and a perspective view (b) showing the front surface. FIG. 8 shows a perspective view (a) showing the back surface and a perspective view (b) showing the front surface of the main body frame 2a in a mode different from that shown in FIG. 7. Further, FIG. 9 shows a side view of the main body frame 2 shown in FIG. 7, and FIG. 10 shows a side view of the main body frame 2a shown in FIG.

As described above, since the extending portion 25 only needs to extend outward from the grip supporting portion 42 in the width direction of the mounting portion 20, the width of the mounting portion 20 on which the extending portion 25 is formed is formed. The dimensions are not required to have a long or short relationship with the width dimension of the contact portion 7 or the width dimension of the contact base portion 21 of the main body frame 2.

Therefore, in the present embodiment, the width dimension of the mounting portion 20 provided with the extending portion 25 is the width dimension of the contact portion 7 and the contact, as shown in FIGS. 7 (a) and 7 (b), for example. It may be the same as a part of the width dimension of the base portion 21. Further, as shown in FIG. 11 described later, the width dimension of the mounting portion 20b provided with the extending portion 25b may be the same as the width dimension of the contact portion 7a and the width dimension of the contact base portion 21b. Further, the width dimension of the mounting portion 20a provided with the extending portion 25a is the same as the width dimension of the contact portion 7, as shown in FIGS. 8A and 8B, for example, but the contact portion 7 is provided with the contact portion. It may be longer than the width dimension of the base portion 21a. In the main body frame 2a shown in FIGS. 8A and 8B, only the width dimension of the mounting portion 20a provided with the extending portion 25a is longer than the width dimension of the contact base portion 21.

As described above, the width dimension of the mounting portion having the extending portion is not necessarily the same as the width dimension of the contact portion and the width dimension of the contact base portion, that is, the width dimension of the contact portion and the width dimension of the contact base portion. It does not have to be the same as all the width dimensions of the above, and may be the same as the width dimensions of all (FIG. 11) or a part (FIG. 7) of the abutting portion and the abutting base portion. In particular, when the width dimension of the mounting portion having the extending portion is the same as the width dimension of all or a part of the contact portion, the contact portion abuts by the mounting portion regardless of the width dimension. Since the entire width of the portion can be supported or brought into contact, the abutting portion can be fixed to the main body frame without causing rattling or the like between the abutting portion and the mounting portion (FIGS. 7 and 11). reference).

The extending portions 25, 25a, 25b are preferably provided in the end regions of the mounting portions 20, 20a, 20b within a distance of 10 cm from the contact surface of the abutting portions 7, 7a, and in the present embodiment, the extending portions 25, 25a, 25b are preferably provided. , The contact portions 7, 7a are provided in the end regions of the mounting portions 20, 20a, 20b within a distance of 5 cm from the contact surface.

In the present embodiment, the main body frame 2 is fixed at that position by mounting the mounting portions 20, 20a, 20b on the upper surface of the bathtub side wall and bringing the contact portions 7, 7a into contact with the side surface of the bathtub side wall. Therefore, the extending portions 25, 25a, 25b provided on the mounting portions 20, 20a, 20b are arranged within a certain distance from the abutting surface of the abutting portions 7, 7a. Therefore, in the present embodiment, if the extension portions 25, 25a, 25b are to be arranged on the upper surface of the side wall of the bathtub with an accurate and minimum necessary size, the extension portions 25, 25a, 25b are brought into contact with the contact portion 7. , 7a is preferably provided in the end region of the mounting portions 20, 20a, 20b having a distance of 10 cm or less from the contact surface, and further, the contact portions 7, 7a have a distance of 5 cm or less from the contact surface. It is more preferable to provide it in the end region of the placement portions 20, 20a, 20b.

The bathtub handrail 1 of the present embodiment is provided on the main body frames 2, 2a and 2b, and the thickness of a part of the contact portions 7 and 7a that come into contact with the outer wall of the bathtub is thicker than the thickness of the remaining region. Since it can be changed to be thicker or thinner (Fig. 11), or thicker or thinner (Fig. 7-9), in principle, the shape and type of the bathtub can be selected, and the inner wall of the bathtub can be used. Even if the bathtub is made of a strong member, the inner wall of the bathtub is strong, but the outer wall other than the rim portion is not strong.

Further, in the bathtub handrail 1 of the present embodiment, the contact portion 7 attached to the contact bases 21 and 21a of the main body frames 2 and 2a is brought into contact with the contact portion 7 below the corresponding contact portion 7. An inclined surface 700 formed so as to gradually reduce the thickness of the contact portion 7 from the surface toward the contact bases 21, 21a, a plurality of steps 701a, or a guide portion 70, 70a having a combination of the inclined surface 700 and the step 701. Is provided.

Since the bathtub handrail 1 of the present embodiment basically has a substantially U-shape downward, when it is attached, it is temporarily placed so as to cover it from above to below the side wall of the bathtub. .. Therefore, if the bathtub handrail 1 is provided with a contact portion 7 protruding from the contact base of the main body frames 2 and 2a in order to adapt to a step or the like on the outer wall of the bathtub, the corresponding contact portion 7 is provided at the time of installation. Rides on the upper surface of the side wall of the bathtub, and there is a risk that it will be installed in an imperfect position and condition.

However, in the present embodiment, the inclined surface 700 formed on the lower portion of the contact portion 7 so as to gradually reduce the thickness of the contact portion 7 from the contact surface of the contact portion 7 toward the contact bases 21 and 21a. Since the guide portions 70 and 70a having a plurality of steps 701a or a combination of the inclined surface 700 and the step 701 are provided, the problem that the contact portion 7 rides on the upper surface of the bathtub side wall at the time of installation is solved. , It is possible to surely prevent the installation of the bathtub handrail 1 in an incomplete position and state.

As described above, since the guide portions 70 and 70a are provided below the contact portion 7 to prevent the contact portion 7 from riding on the upper surface of the bathtub side wall during installation, the guide portions 70 and 70a are provided. The width dimension of the contact portion 7 does not necessarily have to be the same as the width dimension of the contact portion 7, and may be shorter or longer than the width dimension of the contact portion 7. However, as shown in FIGS. 7 (b) and 8 (b), when the width dimension of the guide portions 70 and 70a is shorter than the width dimension of the contact portion 7, the guide portions 70 and 70a are further reduced. It can be made compact, and it is also possible to prevent the guide portions 70 and 70a from being mistakenly used as the contact portion 7 both visually and functionally.

The inclined surface 700 provided on the guide portion 70 has a gradient so as to gradually reduce the thickness of the contact portion 7 from the contact surface of the contact portion 7 separated from the contact base portion 21 toward the contact base portion 21. If so, it is not necessary to be continuously formed with the contact surface of the contact portion 7 or the surface of the contact base portion 21, and as shown in FIG. 9, the contact surface of the contact portion 7 is formed. And may be connected to the surface of the contact base 21 via a step 701.

Further, when the guide portions 70 and 70a are provided with the steps 701 and 701a, in many cases, the edge of the upper surface of the side wall of the bathtub is generally provided with an R having a predetermined radius. If the depth in the horizontal direction is smaller than the radius of the edge of the upper surface of the side wall of the bathtub, the contact portion 7 does not run on the upper surface of the side wall of the bathtub at the time of installation. Therefore, the steps 701 and 701a of the guide portions 70 and 70a are preferably set to have a horizontal depth of 1 mm or more and 12 mm or less in the horizontal direction of the steps 701 and 701a, and are set to 1 mm or more and 6 mm or less in the present embodiment. Further, the steps 701 and 701a may be combined with a plurality of steps as shown in FIG. 8, or may be combined with the inclined surface 700 described above as shown in FIG.

FIG. 11 shows a state in which the contact portion 7a of the main body frame 2 is disassembled into a contact base portion 21b, blocks (sub-blocks) 74a to 74c, 75a to 75c, and elastic rubbers 72a to 72c.

The contact portion 7a of the present embodiment is elastic on the surface of the contact base portion 21b and the surfaces of the blocks (sub-blocks) 74a to 74c and 75a to 75c for the purpose of improving the grip force by preventing slipping and preventing damage to the side wall of the bathtub. The rubbers 72a to 72c can be attached and detached. Further, in the elastic rubbers 72a to 72c, the circular convex portions 720 provided on the back surface of the elastic rubbers 72a to 72c are circularly provided on the surfaces of the blocks (sub-blocks) 74a to 74c, 75a to 75c and the contact base portion 21b. It can be detachably attached by fitting it into the recesses 740, 750 and 210 of.

For example, in order to increase or decrease the thickness of a part of the contact portion 7a, the contact portion 7a can be attached to and detached from the contact base portion 21b of the main body frame 2b and the contact base portion 21b, and the contact portion 7a has a predetermined thickness. It is achieved by constituting the sub-blocks 74a to 74c and 75a to 75c having the above-mentioned and having an area smaller than the contact surface of the contact base portion 21b. That is, in the present embodiment, by mounting the blocks (sub-blocks) 74a to 74c and 75a to 75c to the upper region or the lower region of the contact base portion 21b, the thickness of a part region of the contact portion 7a is made to be the thickness of the remaining region. It can be thicker or thinner than the thickness.

Further, in the present embodiment, the blocks 74a to 74c and 75a to 75c are composed of a plurality of subblocks 74a to 74c and 75a to 75c so as to divide the entire contact surface of the contact base portion 21b in the vertical direction. Therefore, among the plurality of blocks (sub-blocks) 74a to 74c and 75a to 75c having an area smaller than the contact surface of the contact base 21b, all the blocks (sub-blocks) 74a to 74c and 75a to 75c are uniformly used. If the thickness of the entire area of the contact portion 7a can be changed by attaching (or removing), the upper part of the contact portion 7a can be changed by removing the lower blocks (sub-blocks) 74a, 74b, 75a and / or 75b. The thickness of the region (portion of blocks 74c and 75c) can be made thicker than the thickness of the lower region (portion of blocks 74a, 74b, 75a and / or 75b). Further, by removing the upper block block 74c and / or 75c, the thickness of the lower region of the contact portion 7a can be made thicker than the thickness of the upper region.

As is well understood with reference to FIG. 11, the contact portion 7a of the present embodiment is divided into three blocks (sub-blocks) 74a to 74c and 75a to 75c having different widths in the vertical direction. ing. Therefore, in the bathtub handrail 1 of the present embodiment, as shown in FIGS. 14 and 15, the bathtub side walls 9a and 9b have steps of various shapes having different widths (heights) in the vertical direction. Even in this case, if the contact portion 7 can be brought into contact with the step shape by following the step shape (see FIGS. 15 (a) to 15 (c)), the contact portion 7 is locally brought into contact with the step shape. It can also be done (see FIGS. 14 (a) to 14 (c)).

As described above, in the bathtub handrail 1 of the present embodiment, the blocks (sub-blocks) 74a to 74c and 75a to 75c of the contact portion 7a are made of other blocks (sub-blocks) having the same or different sizes and thicknesses. Another block (sub-block) 74a having the same or different size and thickness on top of the blocks (sub-blocks) 74a-74c, 75a-75c that have been replaced with 74a-74c, 75a-75c, or already mounted. By attaching ~ 74c and 75a to 75c, the thickness of the entire area of the contact portion 7a can be changed, or the thickness of a part of the contact portion 7a can be made thicker or thinner than the thickness of the remaining area. be able to. Further, in the present embodiment, for example, as shown in FIGS. 7 to 10, the contact portion 21 is formed by fixing or integrally molding the block (sub-block) to the upper region or the lower region of the contact base portions 21, 21a in advance. , A bathtub railing in which the thickness of a part of 21a is thicker or thinner than the thickness of the remaining region may be prepared.

In the present embodiment, the blocks 74a to 74c and 75a to 75c are composed of subblocks 74a to 74c and 75a to 75c, each of which is detachably laminated and has the same or different size and thickness. Therefore, in the present embodiment, the contact portion 7a is formed by changing the number of layers of blocks (sub-blocks) 74a to 74c and 75a to 75c and the combination of the blocks (sub-blocks) 74a to 74c and 75a to 75c to be laminated. The whole area or a part of the area can be changed to various thicknesses. As a result, in the bathtub handrail 1 of the present embodiment, even when the bathtub side walls 9a and 9b have various uneven steps as shown in FIGS. 14 and 15, the contact portion 7a Can be brought into contact by following the unevenness of the step, or can be brought into contact locally according to the unevenness of the step. Further, the contact portion 7a can be brought into contact with the entire outer wall by following the unevenness of the step. If the block (sub-block) is configured as a thin plate-shaped component such as the sub-blocks 74a to 74c, the thickness of the contact portion 7a can be adjusted more finely.

In the present embodiment, the blocks (sub-blocks) 74a to 74c, 75a to 75c are connected to the contact base 21b of the main body frame 2b, the blocks (sub-blocks) 74a to 74c, 75a to 75c and other blocks (sub-blocks) are connected. For connection with 74a to 74c and 75a to 75c, a circular convex portion 73 is provided on the surface of the contact base portion 21b and / or the block (subblock) 74a to 74c and 75a to 75c, and although not shown, the block (subblock) is provided. ) The back surface of 74a to 74c, 75a to 75c is provided with a recess for fitting with the convex portion 73, and the concave portion of the block (subblock) 74a to 74c, 75a to 75c is provided with the contact base 21b or another block (subblock). ) It is achieved by fitting it into the convex portion 73 of 74a to 74c and 75a to 75c. The concave portion may have a structure that partially surrounds the convex portion 73 from the periphery by, for example, a plurality of short protrusions, as well as an opening that substantially completely accommodates the convex portion 73.

In the present embodiment, the convex portions 73 provided on the surface of the contact base 21b and / or the blocks (subblocks) 74a to 74c and 75a to 75c and the back surfaces of the blocks (subblocks) 74a to 74c and 75a to 75c are provided. A plurality of recesses are arranged. Further, although not shown, the convex portion 73 and the concave portion are provided with the concave portion on the surface of the contact base portion 21b and / or the block (sub-block) 74a to 74c and 75a to 75c, contrary to the above-described configuration, and the convex portion 73 is provided. The blocks (sub-blocks) 74a to 74c and 75a to 75c may be provided on the back surface. In the present embodiment, the blocks (sub-blocks) 74a to 74c and 75a to 75c are formed with holes or elongated holes 741 and 751 for screwing, and the blocks (sub-blocks) 74a to 74c, respectively. The 75a to 75c are screwed to the screw holes 211 of the contact base 21b using screws 76 for the purpose of completely preventing misalignment and falling off. Therefore, the holes or elongated holes 741 and 751 provided in the blocks (sub-blocks) 74a to 74c and 75a to 75c are convex downward so as to allow the passage of the body of the screw 76 but not the head. It forms a two-step wide opening with a shaped cross section.

As described above, in the present embodiment, the blocks (sub-blocks) 74a to 74c, 75a to 75c are connected to the contact base portion 21b, and the blocks (sub-blocks) 74a to 74c, 75a to 75c and other blocks (sub-blocks) are connected. The connection between the 74a to 74c and the 75a to 75c uses a fitting structure consisting of a circular convex portion 73 and a concave portion that cannot be physically moved in the direction orthogonal to the fitting direction. Therefore, for example, to the handrail main body 4. Even if a lateral force that causes tilting is applied, between the blocks (subblocks) 74a to 74c, 75a to 75c and the contact base 21b, and between the blocks (subblocks) 74a to 74c, 75a to 75c. No positional deviation occurs between the other blocks (sub-blocks) 74a to 74c and 75a to 75c.

FIG. 14 shows a state in which the bathtub handrail 1 of the present embodiment is attached to three differently shaped bathtub side walls 9a in which the inner wall has strength but the apron 91a other than the rim portion 90a has no strength. Has been done. In the bathtub side wall 9a of FIG. 14A, the rim portion 90a is recessed from the apron 91a, and in the bathtub side wall 9a of FIG. 14B, the rim portion 90a is substantially flush with the apron 91a, and FIG. The bathtub side wall 9a of (c) has a shape in which the rim portion 90a is on a business trip from the apron 91a. Further, FIG. 15 shows a state in which the bathtub handrail 1 of the present embodiment is attached to three differently shaped bathtub side walls 9b having both an inner wall and an outer wall having strength. In the bathtub side wall 9b of FIG. 15A, the rim portion 90b is recessed from the outer wall 91b other than the rim portion 90b, and in the bathtub side wall 9b of FIG. 15B, the rim portion 90b is the outer wall 91b other than the rim portion 90b. It is substantially flush with each other, and the bathtub side wall 9b of FIG. 15C has a shape in which the rim portion 90b is more in-line than the outer wall 91b other than the rim portion 90b.

As shown in FIGS. 14 and 15, in the bathtub handrail 1 of the present embodiment, the contact portion 7 of the main body frame 2 in contact with the outer wall of the bathtub sets the thickness of a part of the region to the thickness of the remaining region. As a general rule, the shape and type of the bathtub are not selected, and even if the inner wall and outer wall of the bathtub are made of strong members (Fig. 15), the inner wall of the bathtub is The outer wall other than the rim portion 90a, which has strength, can be attached even to a bathtub having no strength (FIG. 14).

Specifically, as shown in FIGS. 15A to 15C, when the outer wall of the bathtub includes a case where there is a step in the vicinity of the rim portion 90b and has strength, the present embodiment The bathtub handrail 1 adjusts the thickness of a part of the contact portion 7 so as to follow the shape of the wall surface, so that the pressing force (reaction force) of the contact portion 7 is adjusted to the pressing force of the pressing portion 6 and a substantially mirror surface. It can be dispersed over the entire contact surface so as to face each other at symmetrical positions. Therefore, the bathtub handrail 1 of the present embodiment can form a balanced clamp state inside and outside the bathtub side wall 9b without causing a rotational moment in the bathtub handrail 1. Further, when the pressing force (reaction force) of the contact portion 7 is dispersed, the pressing force (reaction force) per unit area is also reduced, so that the risk of damaging the side wall 9b of the bathtub is reduced and the handrail for the bathtub is reduced. The strength range (applicable range) of the bathtub side wall 9b to which the attachment of 1 is allowed is also expanded.

As shown in FIGS. 15 (a) to 15 (c), even if the inner wall and the outer wall of the bathtub are integrally manufactured, if the inside is hollow, the outer wall has sufficient strength. In that case, if the legs 5 shown in FIGS. 1 and 2 are attached to the main body frame 2, it is possible to effectively prevent the bathtub handrail 1 from tipping over or falling off from the side wall of the bathtub. , The higher safety of the handrail 1 for bathtub is ensured.

Further, as shown in FIGS. 14A to 14C, when the outer wall of the bathtub includes a case where there is a step in the vicinity of the rim portion 90a and the outer wall has no strength other than the rim portion 90a. The bathtub handrail 1 of the present embodiment concentrates the pressing force (reaction force) of the contact portion 7 so as to be applied only to the rim portion 90a of the outer wall of the bathtub by adjusting the thickness of a part of the contact portion 7. Can be made to. Therefore, the bathtub handrail 1 of the present embodiment can be firmly attached to a bathtub having an outer wall other than the rim portion 90a having no strength, and an apron having no strength other than the rim portion 90a. It is also possible to prevent damage to the 91a.

Further, in the bathtub handrail 1 of the present embodiment, when the bathtub inner wall as described above has strength but the outer wall (apron 91a) other than the rim portion 90a is attached to the bathtub which does not have strength, the bathtub handrail In order to prevent 1 from tipping over and falling off from the side wall 9a of the bathtub, the main body frame is a leg portion 5 in which the rubber legs 52 at the ends as shown in FIGS. 14 (a) to 14 (c) come into contact with the floor surface. It is preferable to attach it to 2. In this case, even if a load is applied laterally by the user or an eccentricity is generated at the center position of the clamping force inside and outside the bathtub, the bathtub handrail 1 is extremely effectively prevented from tilting or tipping over. can do.

In recent years, unit baths are configured with the upper part of the outer wall of the bathtub as a rim part that has strength continuous with the inner wall, and the lower part of the rim part as a removable apron that has no strength in consideration of design and maintainability. Often. Therefore, when the thickness of the upper region of the contact portion 7 of the main body frame 2 is made thicker or thinner than the thickness of the lower region, in many cases, the upper portion of the outer wall of the bathtub (the connecting portion between the rim portion and the apron) is used. Since the step generated in the bathtub can be easily absorbed, the bathtub handrail 1 of the present invention can be applied to most types of unit baths.

In FIG. 12, the auxiliary frame 3 of the bathtub handrail 1 shown in FIG. 1 is disassembled into a frame main body 3, a moving device 8 (including a torque transmission / shutoff mechanism 83 and a torque transmission lock mechanism 830), and a pressing portion 6. An overview of the state is shown.

As shown in FIG. 12, in the bathtub handrail 1 of the present embodiment, the pressing portion 6 includes a pair of pressing main bodies 60 and a pair of resin rubber 63, and the resin rubber 63 is a resin rubber. It is attached by fitting the circular convex portion 630 provided on the back surface of the 63 into the circular concave portion 600 of the pressing main body 60. Further, the pair of pressing main bodies 60 are attached to the connecting plate 61 by inserting the mounting block 62 into the insertion hole 601 of the pressing main body 60 and the mounting hole 611 of the connecting plate 61 and screwing them from the opposite side with screws 620. Be done.

Further, the connecting plate 61 is provided with a fixing hole 610 for fitting with the tip portion of the bolt 89, and the tip portion of the bolt 89 is inserted into the fixing hole 610 of the connecting plate 61 and screwed from the side where the tip portion is exposed. By screwing with 890, the connecting plate 61 of the pressing portion 6 is attached to the tip portion of the bolt 89. In the present embodiment, since play is provided in the attachment portion of the pressing main body 60 to the connecting plate 61 and the attachment portion of the connecting plate 61 to the tip portion of the bolt 89, the pressing main body 60 is attached to the connecting plate 61. And the connecting plate 61 can swing with respect to the tip of the bolt 89. Therefore, the pressing portion 6 of the present embodiment can be reliably brought into contact with the side wall of the bathtub having a curved surface.

In the bath rail 1 of the present embodiment, the moving device 8 for advancing and retracting the pressing portion 6 toward the abutting portion 7 is a nut 82 rotatably attached to the vertical portion 31 of the auxiliary frame 3. It is composed of a handle knob 80 for rotating the nut 82, and a bolt 89 whose tip is connected to the pressing portion 6 and screwed into the nut 82, and the handle is further less than a predetermined force. It includes a torque transmission / shutoff mechanism 83 that transmits rotational power from the knob 80 to the nut 82 and cuts off the transmission of rotational power from the handle knob 80 to the nut 82 above a predetermined force.

In the present embodiment, since the moving device 8 is composed of the nut 82 and the bolt 89, the pressing portion 6 can be easily brought close to or separated from the abutting portion 7 by screwing back and forth of the bolt 89, and further, the pressing portion 6 can be easily brought close to or separated from the abutting portion 7. The state can be reliably maintained. Further, in the present embodiment, the nut 82 is rotatably attached to the vertical portion 31 of the auxiliary frame 3, and the pressing portion 6 attached to the bolt 89 and its tip by rotating the nut 82 with the handle knob 80. Is screwed back and forth, so that the position of the handle knob 80 does not change with respect to the vertical portion 31. As a result, in the present embodiment, it is possible to prevent the handle knob 80 from protruding from the handrail 1 for the bathtub, which is safe for the user.

Further, since the moving device 8 of the present embodiment includes the torque transmission / shutoff mechanism 83, even if the user turns the handle knob 80 and strongly pushes the pressing portion 6 toward the abutting portion 7, the side wall of the bathtub is damaged. The bathtub railing 1 of the present embodiment is required and can be attached to the side wall of the bathtub with sufficient pressing pressure (clamping force). Further, even if the above-mentioned torque transmission / blocking means 83 is provided in the moving device 8 of the pressing portion 6, the position of the handle knob 80 does not change with respect to the vertical portion 31 of the auxiliary frame 3.

FIG. 13 shows an outline of the torque transmission lock mechanism 830 in the moving device 8 of the present embodiment shown in FIG. 12 by partially disassembling.

In the bathtub handrail 1 of the present embodiment, since the moving device 8 has the nut and bolt structures as described above, the torque transmission / shutoff mechanism 83 is provided with the first handle knob 80 inside. By connecting the locking means 801 and the second locking means 821 provided at the end of the nut 82 by the engaging means 831, even if the force exceeds a predetermined force, the turning power is always applied from the handle knob 80 to the nut 82. A torque transmission lock mechanism 830 is provided to enable transmission.

When the moving device 8 is provided with the torque transmission / shutoff mechanism 830, the rotation of the nut 82 is locked when the pressing portion 6 is excessively retracted, so that the pressing portion 6 moves forward. Even if the knob 80 is rotated in the normal direction, the rotational power is not transmitted to the nut 82, which may cause a so-called "idle rotation phenomenon of the handle knob 80". Therefore, when the torque transmission / shutoff mechanism 83 is provided with the torque transmission lock mechanism 830 as described above as in the present embodiment, the first locking means 801 and the nut 82 provided inside the handle knob 80 are provided. Since the second locking means 821 provided at the end of the wheel can be easily connected by the engaging means 831, the turning power can always be transmitted from the handle knob 80 to the nut 82 even if the force exceeds a predetermined force. As a result, the above-mentioned "idling phenomenon of the handle knob 80" can be easily eliminated.

As is well shown in FIG. 13, in the present embodiment, the first locking means 801 is provided inside the handle knob 80, and the second locking means 821 is provided at the end of the nut 82. Therefore, the first locking means 801 and the second locking means 821 can be easily accessed from the opening provided at the end of the handle knob 80 by removing the cap 800, so that the outer periphery of the handle knob 80 can be easily accessed. It is not necessary to secure a space for setting the engaging means in the portion, and the handle knob 80 can be designed compactly.

In the present embodiment, the first locking means 801 is composed of a recess formed between the protrusions, and the second locking means 821 is composed of a recess formed at the end of the nut 82. Further, when the engaging means 831 for engaging the first locking means 801 and the second locking means 821 is composed of the lock pin, the torque transmission lock mechanism 830 can be configured with a simple structure. Therefore, the reliability of the torque transmission lock mechanism 830 is improved.

In particular, when the torque transmission lock mechanism 830 is configured as described above, the lock pin 831 can be easily inserted from the opening provided at the end of the handle knob 80 toward the end of the nut 82. The lock pin 831 allows the recess 801 of the first locking means and the recess 821 of the second locking means to be easily engaged from the rotation axis direction of the nut 82 without using the outer peripheral space of the handle knob 80. Can be done.

Further, in the torque transmission lock mechanism 830 of the present embodiment, in order to provide the second locking means 821, it is not necessary to provide the nut 82 with an extra shaft length so that it can be accessed from the outer peripheral direction of the nut 82. Both the torque transmission / cutoff mechanism 83 provided with the transmission lock mechanism 830 and the moving device 8 provided with the torque transmission / cutoff mechanism 83 can have a compact structure in which the axial length is suppressed.

Specifically, the torque transmission / cutoff mechanism 83 includes a substantially circular torque transmission surface 840 orthogonal to the rotation axis of the handle knob 80, and is synchronized with the rotation of the handle knob 80 and of the handle knob 80. An annular member 84 that is slidably installed along the rotation axis, a substantially circular torque transmission surface 850 that abuts on the torque transmission surface 840 and is orthogonal to the rotation axis of the nut 82, and a second locking means 821. It is composed of a nut 82 having a flange 820 and an urging means 86 for urging the torque transmission surface 840 of the annular member 84 toward the torque transmission surface 850 of the nut 82, and the torque transmission surface 840 and The torque transmission surface 850 locks the torque transmission surface 840 and the torque transmission surface 850 to each other when the rotational force transmitted to each of them is less than a predetermined force, and when the rotational force transmitted is equal to or more than a predetermined force. It is configured by including a recess or a protrusion having an inclined surface that causes slippage between the torque transmitting surface 840 and the torque transmitting surface 850.

The center of the torque transmission surface 840 and the center of the torque transmission surface 850 of the torque transmission / cutoff mechanism 83 are arranged coaxially with the rotation axes of the handle knob 80 and the nut 82. Further, on the torque transmission surface 840 and the torque transmission surface 850, concave / convex portions including a slope inclined from the torque transmission surface 840 or the torque transmission surface 850 are formed, respectively. The inclined surface of the torque transmission surface 840 and the inclined surface of the torque transmitting surface 850 are inclined so as to rise on the opposite inclined surfaces facing each other when the handle knob 80 is turned so as to push the pressing portion 6 into the side wall of the bathtub. Has been done.

The annular member 84 having the torque transmission surface 840 is slidably mounted along the rotation axis of the handle knob 80 and the nut 82, and is attached toward the torque transmission surface 850 by the elastic body urging means 86. It is being pushed. The urging means 86 is not particularly limited as long as it can be elastically deformed, such as a coil spring, a disc spring, and an elastic resin material, and known ones can be used.

Therefore, a constant frictional force is always generated between the inclined surface of the torque transmission surface 840 and the inclined surface of the torque transmission surface 850. When the torque transmitted from the handle knob 80 to the nut 82 is less than a predetermined value, the inclined surface of the torque transmission surface 840 cannot overcome the inclined surface of the torque transmission surface 850 and engages with each other in a state of being meshed with each other. It fits. Then, by this engagement, the torque of the handle knob 80 is transmitted to the nut 82, and the bolt 89 screwed with the nut 82 presses the pressing portion 6 attached to the auxiliary frame 3 toward the side wall of the bathtub.

On the other hand, when the torque transmitted from the handle knob 80 to the nut 82 becomes a predetermined value or more, the inclined surface of the torque transmission surface 840 slips with the inclined surface of the torque transmission surface 850. As a result, the annular member 84 provided with the torque transmission surface 840 retracts against the urging means 86, and the inclined surface of the torque transmitting surface 840 gets over the inclined surface of the torque transmitting surface 850, so that the two are engaged with each other. It will be released. Therefore, even if the handle knob 80 is turned in this state, the handle knob 80 only idles with respect to the nut 82, and torque is not transmitted from the handle knob 80 to the nut 82.

Further, a vertical surface substantially orthogonal to the torque transmission surface 840 is formed at the rear end of the inclined surface of the torque transmission surface 840, and the torque transmission surface 850 is substantially orthogonal to the rear end of the inclined surface of the torque transmission surface 850. Orthogonal vertical planes are formed. The vertical surface of the torque transmission surface 840 and the vertical surface of the torque transmission surface 850 abut and engage with each other when the handle knob 80 is turned so as to separate the pressing portion 6 of the auxiliary frame 3 from the side wall of the bathtub. Therefore, when the handle knob 80 is rotated so as to separate the pressing portion 6 from the side wall of the bathtub, the handle knob 80 and the nut 82 always rotate in synchronization with each other regardless of the magnitude of the transmitted torque.

In this way, in the torque transmission / cutoff mechanism 83, the torque transmission surface 850 that rotates in synchronization with the rotation of the nut 82 is attached to the outer peripheral surface of the nut 82. Therefore, the torque transmission / cutoff mechanism 83 can be partially overlapped with the nut 82 main body, so that the torque transmission / cutoff mechanism 83 and the auxiliary frame of the handle knob 80 provided with the torque transmission / cutoff mechanism 83 can be arranged. The protrusion length from 3 can be suppressed.

Further, in the present embodiment, in order to improve the maintainability of the torque transmission / cutoff mechanism 83 by facilitating the replacement of consumable parts, the torque transmission surface 850 is synchronized with the rotation of the nut 82. It is formed on a second annular member 85 that is detachably attached to.

Further, in order to improve the maintainability of the torque transmission / shutoff mechanism 83 by facilitating the attachment / detachment of the nut 82 to / from the vertical portion 31 of the auxiliary frame 3, the nut 82 is provided on the vertical portion 31 of the auxiliary frame 3. A body portion 822 to be inserted through the opening 310 is provided, and the outer diameter of the second annular member 85 is set to an outer diameter larger than that of the opening 310. A flange member 88 having an outer diameter larger than the opening 310 and a cover 880 are connected to the second annular member 85 by a screw 881 from a side surface opposite to the side surface of the vertical portion 31 with which the second annular member 85 abuts. As a result, the nut 82 can be rotatably attached to the vertical portion 31.

Further, in order to prevent the second annular member 85 and the flange member 88 from being worn and to facilitate the rotation of the nut 82, the vertical portion 31 of the auxiliary frame 3 is provided with the second annular member 85 via a resin washer 87. And is sandwiched by the flange member 88.

Further, in the present embodiment, the end portion of the body portion of the handle knob 80 is provided with a diameter-expanded portion 802 having a diameter larger than that of the body portion. The handle knob 80 is rotated in synchronization with the annular member 84 having the torque transmission surface 840, and the internal handle fixing cover 810 and the handle having an inner diameter smaller than that of the enlarged diameter portion 802 so as not to be separated from the nut 82. It is rotatably attached to the vertical portion 31 of the auxiliary frame 3 by the fixed cover 81.

1,1x ・ ・ ・ ・ ・ Handrails for bathtubs 2,2a, 2b ・ ・ ・ ・ ・ Main frame 20, 20a, 20b ・ ・ ・ Mounting part 200 ・ ・ ・ Screw holes 21,21a, 21b ・ ・ ・ This Contact base 210 ・ ・ ・ Recessed part 211 ・ ・ ・ Screw holes 22, 22a, 22b ・ ・ ・ Grip support part Accommodating part 23 ・ ・ ・ ・ Reduced diameter part 230 ・ ・ ・ Nut 24 ・ ・ ・ ・ Protective cover 25, 25a, 25b ・ ・ ・ Extension part 26 ・ ・ ・ ・ Resin rubber 27 ・ ・ ・ ・ Resin rubber 28 ・ ・ ・ ・ Insertion / release mechanism 280 ・ ・ ・ Insert pin 281 ・ ・ ・ Biasing means 282 ・ ・ ・ Knob 3.・ ・ ・ ・ Auxiliary frame 30 ・ ・ ・ ・ Horizontal part 300 ・ ・ ・ Screw hole 31 ・ ・ ・ ・ Vertical part 310 ・ ・ ・ Opening 32 ・ ・ ・ ・ Connecting frame 320 ・ ・ ・ Slit 321 ・ ・ ・ Screw 33 ・・ ・ ・ Protective cover 34 ・ ・ ・ ・ Resin rubber 4,4x ・ ・ ・ Handrail body 40 ・ ・ ・ ・ Side grip 41 ・ ・ ・ ・ Upper grip 42 ・ ・ ・ ・ Grip support 420 ・ ・ ・Fixing hole 5 ・ ・ ・ ・ ・ Leg 50 ・ ・ ・ ・ Main leg 51 ・ ・ ・ ・ Auxiliary leg 52 ・ ・ ・ ・ Rubber leg 53 ・ ・ ・ ・ Screw 6,6x ・ ・ ・ Pressing part 60・ ・ ・ ・ Pressing body 600 ・ ・ ・ Recessed 601 ・ ・ ・ Insertion hole 61 ・ ・ ・ ・ Connecting plate 610 ・ ・ ・ Fixing hole 611 ・ ・ ・ Mounting hole 62 ・ ・ ・ ・ Mounting block 620 ・ ・ ・ Screw 63 ・・ ・ ・ Resin rubber 630 ・ ・ ・ Convex part 7,7a ・ ・ ・ Contact part 7x ・ ・ ・ ・ Pressing receiving part 70, 70a ・ ・ ・ ・ Guide part 700 ・ ・ ・ Inclined surface 701 ・ ・ ・ Step 71 ・ ・ ・ ・ Contact body 710 ・ ・ ・ Through hole 711 ・ ・ ・ Rubber fixing hole 712 ・ ・ ・ Screw 72, 72a ～ 72c ・ ・ ・ Resin rubber 720 ・ ・ ・ Convex part 73 ・ ・ ・ ・ Convex part 74a-74c, 75a-75c ... Block (sub-block)
740, 750 ... Recessed 741, 751 ... Long hole 76 ... Screw 8, 8x ... Moving device 80 ... Handle knob 800 ... Cap 801 ... First Locking means (recess)
802 ... Enlarged diameter portion 81 ... Handle fixing cover 810 ... Internal handle fixing cover 82 ... Nut 820 ... Flange 821 ... Second locking means (recess)
822 ・ ・ ・ Body 83 ・ ・ ・ ・ Torque transmission / shutoff mechanism 830 ・ ・ ・ Torque transmission lock mechanism 831 ・ ・ ・ Lock pin 84 ・ ・ ・ ・ Ring member 840 ・ ・ ・ Torque transmission surface 85 ・ ・ ・ ・ No. 2 annular member 850 ・ ・ ・ torque transmission surface 86 ・ ・ ・ ・ urging means 87 ・ ・ ・ ・ washer 88 ・ ・ ・ ・ flange member 880 ・ ・ ・ cover 881 ・ ・ ・ screw 89 ・ ・ ・ ・ bolt 890・ ・ ・ Screws 9, 9a, 9b ・ ・ ・ Bath side wall 90a, 90b ・ ・ ・ Rim part 91a ・ ・ ・ Apron 91b ・ ・ ・ Outer wall L ₀ , L ₁ , L ₂・ ・ ・ Center of handrail and side wall of bath Distance to the center of

Claims (11)

A mounting portion on which the handrail body is attached and mounted on the upper surface of the bathtub side wall, a contact surface connected to the previously described mounting portion and abutted on one side surface of the bathtub side wall, and the above-mentioned contact surface. Below the contact surface, an inclined surface formed so as to gradually reduce the thickness from the contact surface downward, a contact portion having a plurality of steps or a guide portion having a combination of the inclined surface and the step is provided. A body frame having a contact base and
Auxiliary frame that can be attached to and detached from the main body frame
A pressing portion that presses the other side surface opposite to the side surface of the side wall of the bathtub to which the contact portion abuts.
A handrail for a bathtub , which is attached to the auxiliary frame and includes a moving device for moving the pressing portion forward and backward toward the abutting portion. The handrail for a bathtub according to claim 1, wherein the depth of the step in the horizontal direction is 1 mm or more and 12 mm or less. The handrail for a bathtub according to claim 2, wherein the depth of the step in the horizontal direction is 1 mm or more and 6 mm or less. The handrail for a bathtub according to any one of claims 1 to 3, wherein the width dimension of the guide portion is shorter than the width dimension of the contact surface. The handrail for a bathtub according to claim 1, wherein the contact portion can form the contact surface and the guide portion by changing the thickness of a part thereof. The handrail for a bathtub according to claim 5, wherein the contact portion includes a block that is detachably attached to a part of the contact base portion. The handrail for a bathtub according to claim 6, wherein the block is composed of a plurality of sub-blocks having the same or different thickness that are detachably laminated. The handrail for a bathtub according to any one of claims 5 to 7, wherein the contact portion has a thickness of the upper region thicker than the thickness of the lower region. The handrail for a bathtub according to any one of claims 1 to 8, wherein a leg portion whose end abuts on the floor surface is attached to the main body frame. The auxiliary frame has a horizontal portion attached to a previously described mounting portion of the main body frame and a vertical portion to which the moving device is attached, and the auxiliary frame has the vertical portion of the auxiliary frame. The handrail for a bathtub according to any one of claims 1 to 9, wherein the attachment position to the main body frame can be selected so as to approach and separate from the contact portion of the main body frame. The moving device includes a nut rotatably attached to the vertical portion of the auxiliary frame, a handle knob for rotating the nut, and a tip portion connected to the pressing portion and said nut. The handrail for a bathtub according to any one of claims 1 to 10, wherein the handrail is composed of a bolt screwed into the screw.

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