JP6706567B2 - Handrail for bathtub - Google Patents

Description

The present invention relates to a thin-walled fixed frame arranged so as to abut the side surface and the upper surface of a side wall of a bathtub, and a thin-walled downward U-shaped movable frame mounted on the fixed frame so as to be retractable toward the fixed frame side. With regard to the handrail for bathtubs equipped with, in principle, it can be attached to the bathtub side wall of any shape and structure regardless of the type of bathtub. The present invention relates to a handrail for a bathtub that can be fixed to a desired position without causing a positional deviation or a stress (a frictional force) due to the positional deviation.

Conventionally, a handrail for a bathtub that can be detachably attached by clamping the bathtub side wall from the washroom side and the bathtub side so that an elderly person or the like can easily support the body when entering or leaving the bathtub. Are known.

In addition, the inner and outer walls of the bathtub are made of a strong material that is integrated into the bathtub, and the shape of the bathtub is changed from a conventional type that has a relatively simple shape such as a cube to a unitized and highly functional bathtub. Due to 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 removable non-strengthened decorative plate (apron), and There are various types of bathtubs up to the latest unit baths, whose shapes have become more complicated.

For this reason, a bathtub manufactured from a member having a relatively strong inner wall and outer wall, such as a conventional bathtub, is disclosed in, for example, Japanese Unexamined Patent Application Publication No. 2011-189069 (Patent Document 1). In addition, there is a handrail for bathtub of a 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 opposed to each other so as to be substantially mirror-symmetrical. It is provided. Further, as in the latest type unit bath, 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 is described in, for example, JP-A-2015-173699 (Patent Document 2). As described above, a pressure plate that is flat in the vertical direction and that contacts only the upper rim portion that has strength is arranged on the washroom side, and a pressure receiving plate that has a wider contact area than the pressure plate on the bathtub side. By arranging, the handrail for bathtub of the type which clamps a side wall of a bathtub from the washbasin side and the bathtub side is provided.

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

In addition, in the case of the handrails for bathtubs described in Patent Documents 1 and 2, the side wall of the bathtub is clamped by pressing the pressing plate supported by the side wall mounting frame to the bathtub, as shown in FIG. As shown in (a) and (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). The distance from the center L ₂ ) and the handrail cannot be installed at the originally planned placement position (the distance L ₁ between the center of the handrail and the center of the bathtub side wall), and the mounting state is also extremely unstable. There was a problem of becoming.

In particular, in the bathtub handrail described in Patent Documents 1 and 2, when the pressing plate is pressed against the bathtub sidewall, the sidewall mounting frame directly placed on the bathtub sidewall moves relatively to the bathtub sidewall. Stress (frictional force) is generated between the side wall mounting frame and the upper surface of the side wall of the bathtub. 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 side wall of the bathtub. As a result of accumulating the force), the handrail for the bathtub or the bathtub side wall is deformed, or unintended internal stress (friction force) is released, which causes further positional deviation between the side wall mounting frame and the upper surface of the bathtub side wall. 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 receiving plate that presses the inner wall of the bathtub in a region below the pressing plate. Since the center of each part is vertically eccentric, a moment for tilting inward and outward of the bathtub side wall is generated in the bathtub handrail. Therefore, in the case of the handrail for a bathtub described in Patent Document 2, regardless of the type of the bathtub to be attached, the legs must always be attached to prevent the handrail for the bathtub from tilting. However, there was a problem that the structure and the 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 bathtub is attached and the problem that the mounting position of the handrail is displaced or the stress caused by the displacement is generated, for example, Japanese Patent Laid-Open No. 2000-2000 As described in Japanese Patent No. 336882 (Patent Document 3) and Japanese Patent Application No. 2016-131704 (Patent Document 4), the handrail arranged on the washroom side is placed directly on the side wall of the bathtub. There is provided a handrail for a bathtub that solves the above-mentioned problems by attaching the pressing plate to a frame so that the pressing plate can be moved back and forth on a connecting frame arranged on the bathtub side opposite to the handrail. In addition, Japanese Utility Model Laid-Open No. 3-60590 (Patent Document 5) has solved the above problem by allowing a movable frame disposed on the main body frame to be pulled toward the main body frame side until it comes into contact with the bathtub side wall. There are also known handrails for bathtubs.

However, in the case of the handrails for bathtubs described in Patent Documents 3 and 4, a moving device for screwing a pressing plate attached to the movable frame, such as a bolt shaft and a handle knob, protrudes to the inside of the bathtub. There is a problem that it may be dangerous and an obstacle for users of the bathtub handrail.

Further, in the case of the handrail for bathtub described in Patent Document 3, in order to uniformly press the side wall of the bathtub from the side of the washing basin and the side of the bathtub, a pressing plate and a pressing receiving plate having flat and substantially the same contact surface are provided. Since it is basically used to clamp a flat bathtub side wall, for example, when there is a step on the outer wall of the bathtub, a step correction plate is adhered to the outer wall to make the outer wall flat and then the handrail for the bathtub is attached. It must be (see paragraphs [0057] and [0058] of Patent Document 3 and FIGS. 1 and 2).

However, in the case of using the step correction plate, when a force is applied to the handrail in a direction parallel to the side surface of the bathtub side wall in the lateral direction, the step correction plate causes the handrail to come into contact with the bathtub side wall or the pressing receiving surface of the handrail for bathtub. There is a problem that the handrails for the bathtub fall over or fall out from the side wall of the bathtub due to a gap between the step-correction plates when the step-correction plates are stacked in between. Further, since the step correction plate has the same simple shape, if the step shape of the bathtub side wall is different from the shape of the step correction plate (for example, see FIGS. 9A and 10A), the bathtub There is also a problem that the side wall cannot be corrected into a flat shape.

Furthermore, in the case of the handrail for a bathtub described in Patent Document 5, a moving device for retracting the movable frame to the main body frame side, such as a bolt shaft, is bulky arranged on the upper surface of the bathtub side wall. There is also a problem that it is impossible to cover the bathtub with the handrail attached, or even if the cover is closed, a large gap is generated and the bath temperature is lowered.

JP, 2011-189069, A JP, 2005-173699, A JP 2000-336882 A Japanese Patent Application No. 2016-131704 Japanese Utility Model Publication No. 3-60590

Therefore, in the present invention, in a bathtub handrail that is detachably attached by clamping the bathtub side wall from the washing place side and the bathtub side, in principle, the bathtub type is not selected, and the bathtub side wall having any shape or structure can be used. Can also be attached, and in the attaching operation process, the handrail (handle) can be fixed at a desired position without causing displacement or stress (friction force) due to the displacement at the attaching position, and further An object of the present invention is to provide a handrail for a bathtub, which has a thin frame and the like so as not to get in the way when the lid is covered.

In order to achieve the above object, the inventors of the present invention, in order to achieve the above objects, a method of attaching a bathtub handrail to a bathtub side wall by a clamp and a configuration thereof, a fixed frame directly mounted on the upper surface of the bathtub side wall, and The inventors have earnestly studied about the shape of the movable frame mounted on the fixed frame, the connecting structure between the fixed frame and the movable frame, the structure of the moving device for changing the relative position of the movable frame to the fixed frame, and the mounting position thereof. It was

As a result, the present inventors have found that the bath railing is fixed to the side surface and the upper surface of the side wall of the bath, and the movable frame attached to the fixed frame so as to be retractable. And the movable frame has a downward U-shape so that the moving device for retracting the movable frame can be attached to the fixed frame arranged on the side surface of the bathtub side wall and the vertical portion of the movable frame. Further, the contact surface of the fixed frame that contacts the outer wall of the bathtub is configured by a detachable block or the like, so that the thickness of a partial region thereof is thicker or thinner than the thickness of the remaining region, or It has been found that the above object can be achieved by making the thickness of the partial region thicker or thinner than the thickness of the remaining region, and has completed the present invention.

That is, according to the present invention, there is provided a pulling-in portion that is in contact with one side surface of the bathtub side wall and is arranged so as to face the one side surface of the bathtub side wall, and a pulling-in portion that faces the pulling-in portion. A movable frame composed of a pull-in operation portion arranged to connect the pull-in portion and a connection portion connecting the pull-in portion and the pull-in operation portion, a handrail main body, and a horizontal portion arranged to face the upper surface of the bathtub side wall. A vertical frame that is connected to the horizontal part and has a contact part that is arranged so as to face the other side surface of the bathtub side wall opposite to one side surface of the bathtub side wall; A moving device that is connected to the pull-in operating portion and moves the pull-in operating portion toward or away from the vertical portion is provided, and the contact portion has a partial region whose thickness is smaller than that of the remaining region. Also, there is provided a handrail for a bathtub, which is characterized in that it is thickened or thinned, or that the thickness of a partial region thereof can be made thicker or thinner than the thickness of the remaining region.

The bathtub handrail of the present invention mainly includes a fixed frame directly mounted so as to abut one side surface and an upper surface of the bathtub side wall, and a retracting portion arranged so as to face the other side surface of the bathtub side wall. And a movable frame that is movably attached to the fixed frame, and for connecting the movable frame to the fixed frame so that the movable frame can move forward and backward, the fixed frame and the vertical portion of the movable frame (located on the side surface of the bathtub side wall) Part) and a moving device attached to the same.

In addition, the fixed frame includes a horizontal portion that abuts the upper surface of the bathtub side wall and a vertical portion that is connected to the horizontal portion and abuts the side surface of the bathtub side wall, and has a substantially downward L-shape in a side view. Have On the other hand, the movable frame includes a retraction part arranged on a side surface of the bathtub side wall, a retraction operation part arranged so as to face the retraction part, and a connecting part connecting the retraction part and the retraction operation part. And has a substantially U-shape that is substantially downward in a side view.

Therefore, in the handrail for a bathtub of the present invention, the fixed frame is directly mounted on the upper surface of the bathtub side wall, and the movable frame only advances and retracts with respect to the fixed frame directly mounted on the upper surface of the bathtub side wall. The fixed frame can be firmly attached in a stable state without causing positional displacement or frictional force (residual stress) between the fixed frame and the upper surface of the bathtub side wall due to the retracting operation of the movable frame. Further, in the handrail for a bathtub of the present invention, even after the fixed frame is placed close to the bathtub side wall and the retractable portion of the movable frame is pulled into the bathtub side wall, the fixed frame and the handrail main body attached to the fixed frame are also provided. There is no problem that (particularly, the upper grip) moves and separates from the side wall of the bathtub, and as a result, the upper grip has a structure that is difficult to be tilted toward the washroom side.

In the handrail for a bathtub of the present invention, the movement device clamps the bathtub side wall by pulling in the retracting portion of the movable frame via the connecting portion, and the retracting operation is performed on the side opposite to the retracting portion with the bathtub sidewall sandwiched therebetween. This is done by separating the part from the vertical part of the fixed frame. In other words, the movable frame moving device separates the retraction operation portion from the vertical portion to bring the retraction portion close to the vertical portion via the connecting portion, and the retraction operation portion to the vertical portion. By making them close to each other, the retracting portion functions to be separated from the vertical portion via the connecting portion.

Therefore, in the present invention, it is possible to dispose the moving device for retracting the movable frame on the side surface of the bathtub side wall via the retracting operation portion, and move it to the horizontal portion or the connecting portion disposed on the upper surface of the bathtub side wall. Since it is not necessary to dispose the device, a horizontal portion arranged on the upper surface of the side wall of the bathtub, even though the handrail for bathtub is of a type in which the movable frame is drawn to the fixed frame side as described in Patent Document 5. The structure of the connection part and the connection part can be simplified and the thickness thereof can be made extremely thin. Therefore, even when the handrail for a bathtub of the present invention is attached to the side wall of the bathtub, the movable frame and the fixed frame do not cause a gap or the like between the side wall of the bathtub and the lid to lower the bath temperature, Allows the lid to be attached to a bath with a high degree of tightness.

In the moving device of the present invention, when the retracting operation part of the movable frame is brought close to the vertical part of the fixed frame, the retracting operation part may be separated from the vertical part by retracting the retracting operation part from the vertical part, or the retraction operation of the vertical part. It may be separated from each other by pushing it from the portion, and it is preferable that the separated state can be maintained. Further, the moving device does not necessarily need to be connected to the vertical portion of the fixed frame as long as it is connected to at least the retracting operation portion of the movable frame.

For example, in the case where the moving device is composed of a bolt shaft and a nut, if the nut is attached to at least the retracting operation portion of the movable frame, the bolt shaft may be attached even if the tip portion of the bolt shaft is not connected to the vertical portion. The vertical part can be separated from the retracting operation part by advancing and pushing the tip part into the vertical part, and if the bolt shaft is retracted, the tension state between the retracting operation part and the vertical part by the bolt shaft ( This is because the upright state) is released and the vertical portion returns (closes) to the retracting operation portion side.

In the handrail for bathtubs of the present invention, the movable frame may be swingably attached to the fixed frame when the connecting portion is arranged above the horizontal portion. When the movable frame is swingably attached to the fixed frame, the clamp part is curved to follow the side wall of the bathtub where the thickness is not constant, without attaching the pulling part to the movable frame so that it can swing. As a result, the bath railing main body can be firmly attached to the side wall of the bath.

Further, when the movable frame is swingable, the swinging angle of the movable frame can be reduced even if the above-described pulling pressure portion is omitted or the pulling pressure portion is provided. There is an advantage that the handrail body can be made compact.

The structure for attaching the movable frame to the fixed frame in a swingable manner is not particularly limited. It can be realized by screwing the horizontal part and the horizontal part. Further, for example, when the moving device is composed of a bolt shaft and a nut, the nut is swingably attached to the retracting operation part of the movable frame, and/or the tip part of the bolt shaft is swung to the vertical part of the fixed frame. It can be realized by mounting possible.

In particular, if the moving device is connected not only to the retracting operation part but also to the vertical part by attaching the nut to the retracting operation part of the movable frame and attaching the tip of the bolt shaft to the vertical part of the fixed frame, the movable frame will move the moving device. Since it is connected to the fixed frame via the connector, it does not come off from the fixed frame carelessly, which is convenient for carrying.

In the handrail for a bathtub according to the present invention, the thickness of a partial region of the contact portion of the fixed frame that contacts the outer wall of the bathtub is thicker or thinner than the thickness of the remaining region, or a partial region thereof. Since the thickness of the bathtub can be made thicker or thinner than the thickness of the remaining region, in principle, the shape and form of the bathtub are not selected, and even if the inner wall and the outer wall of the bathtub are manufactured from members having strength, Even if the inner wall of the bathtub has strength, the outer wall other than the rim portion can be attached even if it is not strong (see FIGS. 9 and 10).

Specifically, when the outer wall of the bathtub has strength and includes a step, the handrail for a bathtub of the present invention adjusts the thickness of a part of the contact portion so as to follow the wall surface shape. By this, the pressing force (reaction force) of the contact portion can be dispersed over the entire contact surface so as to oppose the pressing force of the pulling pressure portion at a position substantially mirror-symmetrical (see FIGS. 10A and 10C). ). Therefore, the bathtub handrail according to the present invention can form a balanced clamped state inside and outside the bathtub side wall without generating a rotational moment in the bathtub handrail. Further, 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. Also, the strength range (application range) of the side wall of the bathtub that is allowed is expanded.

When the outer wall of the bathtub has a step and does not have strength other than the rim portion, the handrail for a bathtub according to the present invention is such that the thickness of a partial area of the abutting portion is smaller than the thickness of the remaining area. Also, prepare a thickened or thinned one in advance, or apply the pressing force (reaction force) of the contact part to only the rim part of the outer wall of the bath by adjusting the thickness of part of the contact part. You can concentrate as you are. For this reason, the handrail for bathtubs 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 having no strength other than the rim portion (apron, makeup). It is also possible to prevent damage to the plate (see FIGS. 9A and 9B).

In the present invention, the thickening or thinning of the thickness of a partial region of the abutting portion is such that the abutting portion is detachably attached to the abutting base provided on the fixed frame and the partial region of the abutting base. This is achieved by constructing from blocks and. That is, by attaching a block having a predetermined thickness and an area smaller than the contact surface of the contact base to, for example, an upper partial region or a lower partial region of the contact base, The thickness of the region can be made thicker or thinner than the thickness of the remaining region.

Further, in the present invention, the thickness of the entire area of the contact portion is changed and the thickness of the partial area is increased or decreased by changing the thickness of the contact portion to the contact base provided on the fixed frame and attaching/detaching to/from the contact base. This is achieved by constructing the abutment part from a plurality of vertically attachable blocks. That is, on the surface of the contact base, for example, a plurality of blocks having a predetermined thickness and having a smaller area than the contact surface of the contact base are evenly mounted, and, for example, all of the blocks are If it becomes possible to change the thickness of the entire area of the abutting portion by attaching and detaching the block, by removing a part of the block, the thickness of a partial area of the abutting portion will become larger than the thickness of the remaining area. It also enables thickening or thinning.

In addition, it is preferable that the abutting portion is provided with an elastic rubber that is detachably attached to the surface of the abutting base portion and the surface of the block for the purpose of improving the grip force by preventing slippage and preventing damage to the side wall of the bathtub.

In the present invention, when the contact portion includes a plurality of blocks, it is preferable that at least two blocks among the plurality of blocks have different widths in the vertical direction. If the contact part is provided with blocks having different widths, the contact part can be made to follow the step shape even when the bathtub side wall has various steps with different widths (heights) in the vertical direction. If they can be brought into contact with each other (see FIGS. 10(a) and 10(c)), they can also be brought into contact locally according to the step shape (FIG. 9(a)( See b)).

Further, in the present invention, the block of the contact portion can be replaced with another block having the same or different size and thickness, or another block having the same or different size and thickness can be further attached to and detached from the block. So that the thickness of the entire area of the contact portion can be changed, or the thickness of a partial area of the contact portion can be made thicker or thinner than the thickness of the remaining area. It can also be configured to.

In the present invention, the block may be composed of detachably stacked sub-blocks having the same or different thickness. If the block is composed of stacked sub-blocks having different thicknesses, by changing the number of stacked sub-blocks or the combination of sub-blocks to be stacked, the entire area or a partial area of the contact portion can be changed to various thicknesses. Can be changed. As a result, even when the side wall of the bathtub has various unevenness steps, the contact portion can be made to follow the unevenness of the unevenness so that the contact portion can be brought into contact with the unevenness of the unevenness. It also becomes possible to bring them into local contact. Further, if the sub block is configured as a thin plate-shaped component, 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 fixed frame and the connection between the block and another block are provided with a convex portion on the front surface of the contact base and/or the block, and the convex portion on the back surface of the block. This is accomplished by providing a mating recess and fitting the recess of the block into the abutment base or projection of another block. A plurality of convex portions provided on the front surface of the contact base and/or the block and concave portions provided on the rear surface of the block may be arranged. 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 portion and the connection between the block and another block have a fitting structure with concave and convex portions that cannot physically move in the direction orthogonal to the fitting direction. Since it is used, even if a lateral force such as tilting to a handrail is applied, a positional deviation may occur between the block and the contact base and between the block and another block. Absent.

In addition, the block is provided with a fastener such as a screw or the like for the purpose of further strengthening the above-mentioned positional deviation prevention or completely preventing the block from being unintentionally detached from the abutment portion or another block. You may fix it with a screw.

In consideration of designability and maintainability, recent unit baths are constructed with a rim part that has strength that is continuous with the inner wall of the bathtub outer wall, and a removable apron that does not have strength at the bottom of the rim part. Often. Therefore, if the contact portion of the fixed frame is configured such that the thickness of the upper region thereof is thicker or thinner than the thickness of the lower region thereof, the abutment portion of the fixed frame will be located on the upper portion of the outer wall of the bathtub (the connecting portion between the rim portion and the apron). Since the generated step can be easily absorbed, the bathtub handrail according to the present invention can be applied to most unit baths.

In the present invention, in order to strengthen the prevention of the handrail for bathtub from falling over and the prevention of the handrail from falling off from the side wall of the bathtub, leg portions whose end portions contact the floor surface may be attached to the fixed frame. In particular, when the bathtub handrail 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 lateral load is applied by the user, Even if the central position of the clamping force is eccentric, the bathtub handrail can be extremely effectively prevented from tilting or tipping over. Therefore, even if the inner wall and the outer wall of the bathtub are integrally manufactured, the outer wall may not have sufficient strength if the inside is hollow (see FIG. 10). If used together, higher safety of the handrail for bathtubs can be secured.

The moving device used in the present invention preferably includes a nut connected to the pull-in operation portion, a bolt shaft screwed with the nut, and a handle knob that rotates the nut or the bolt shaft. In this case, the bolt shaft may rotate the nut to be screwed back and forth, or may rotate the bolt shaft itself to screw it back and forth. Further, the bolt shaft may be connected to the vertical portion so as to be swingable.

When the moving device is configured by the nut and the bolt shaft, the retracting operation part can be easily moved toward or away from the vertical part by the screw shaft moving forward and backward, and the state can be surely maintained. it can. Further, when the bolt shaft is pivotally connected to the vertical portion, the movable frame can be pivotally fixed to the fixed frame.

As described above, when the moving device used in the present invention is composed of the nut and the bolt shaft, the nut is rotatably connected to the retracting operation part, and the bolt shaft is non-rotatably connected to the vertical part. be able to. In this case, since the bolt shaft is screwed back and forth by rotating the nut attached to the retracting operation section, the position of the handle knob for rotating the nut remains unchanged with respect to the retracting operation section. It is possible to reduce the number of dangerous parts protruding from the handrail.

For this reason, it is preferable that the handle knob has a storage chamber for storing the bolt shaft retracted by rotating the nut, and in this case, the handle knob moves from the bolt shaft to the user. It also functions as a protective cover that protects the.

As described above, when the moving device used in the present invention is one that causes the bolt shaft to be screwed back and forth by rotating the nut, when the moving force is less than the predetermined force, the turning force is transmitted from the handle knob to the nut and the predetermined force is applied. It is preferable to provide a torque transmission/interruption means for interrupting the transmission of the turning force from the handle knob to the nut when the force is exceeded.

If the moving device is equipped with a torque transmitting/blocking means, even if the user turns the handle knob and pulls the pull-in part strongly toward the vertical part, the side wall of the bathtub is not damaged and the necessary and sufficient pulling force ( The handrail for bathtub of the present invention can be attached to the side wall of the bathtub with a clamping force).

When the moving device used in the present invention is composed of a nut and a bolt shaft, as another embodiment, the bolt shaft is rotatably connected to the vertical portion and the nut is non-rotatably connected to the retracting operation portion. be able to. In this case, since the bolt shaft to be screwed back and forth is directly rotated by the handle knob, the structure of the moving device can be extremely simplified, and the reliability of the moving device can be improved.

As described above, when the moving device used in the present invention is to rotate the bolt shaft itself to screw the bolt shaft forward and backward, the turning force is transmitted from the handle knob to the bolt shaft when the force is less than a predetermined force. Further, it is preferable to provide a torque transmission means for cutting off the transmission of the turning force from the handle knob to the bolt shaft at a predetermined force or more.

If the moving device is equipped with a torque transmitting/blocking means, even if the user turns the handle knob and pulls the pull-in part strongly toward the vertical part, the side wall of the bathtub is not damaged and the necessary and sufficient pulling force ( The handrail for bathtub of the present invention can be attached to the side wall of the bathtub with a clamping force).

In the handrail for bathtub according to the present invention, it is preferable that the distance between the retractable portion and the retractable operating portion of the movable frame is adjustable. The adjustment of the separation distance between the retracting portion and the retracting operation portion is performed by, for example, using a movable frame as a first downward L-shaped frame that includes the retracting portion and a part of the connecting portion, and a first downward L-shaped frame that includes the retracting operation portion and a connecting portion. It can be realized by adjusting the connecting position of the connecting portions of the first and second downward L-shaped frames. Further, for example, it can be realized by making the attaching position of the pull-in portion and/or the pull-in operation portion variable with respect to the connecting portion.

If the separation distance between the retraction part and the retraction operation part is made adjustable, the separation distance between the retraction part and the retraction operation part is adjusted in advance to the thickness of the bathtub side wall, whereby the movable frame and the bathtub side wall are It can be kept to the minimum width needed to be clamped. As a result, the number of clamping operations by the moving device can be reduced, the installation time can be shortened, and the protruding portion of the bathtub handrail after installation from the bathtub side wall can be minimized.

In the bathtub handrail of the present invention, the bathtub side wall may be directly clamped by the pull-in portion and the vertical portion, but a pulling pressure portion provided in the pull-in portion and abutting on one side surface of the bathtub side wall, and/ Alternatively, the side wall of the bathtub may be clamped via an abutment portion provided on the vertical portion and abutting on another side surface of the side wall of the bathtub.

The pulling portion can be formed of a flat plate made of resin or metal, a hard/soft rubber or a combination thereof in order to increase the frictional force with the side wall of the bathtub, and is configured as an integral part of the pulling portion. Alternatively, it can be configured as a separate part separated from the retracting part. Also, when the drawing pressure part is configured as a separate part from the drawing part, the drawing pressure part is attached to the drawing part so that it can be swung so that it can smoothly follow the curved or inclined bathtub side wall. Good.

In the handrail for a bathtub of the present invention, the fixed frame is placed directly on the upper surface of the bathtub side wall, and the movable frame only advances and retracts with respect to the fixed frame directly placed on the upper surface of the bathtub side wall. , It is possible to firmly attach the movable frame in a stable state without causing displacement and frictional force (residual stress) between the movable frame and the upper surface of the bathtub side wall. Further, according to the present invention, before and after clamping the bathtub side wall by the fixed frame and the movable frame, the handrail for the bathtub can be removed without changing the relative positions of the handrail part and the handle knob attached to the fixed frame to the bathtub side wall. Can be attached to the side wall of the bathtub.

According to the handrail for a bathtub of the present invention, since the contact portion of the fixed frame that contacts the outer wall of the bathtub can make the thickness of a partial region thicker or thinner than the thickness of the remaining region, in principle Even if the inner wall and outer wall of the bathtub are made of strong members regardless of shape or form, the inner wall of the bathtub has strength, but the outer walls other than the rim portion do not have strength. Can be installed even.

In particular, if the outer wall of the bathtub has strength and includes steps, the pressing force (reaction force) of the contact part can be adjusted by adjusting the thickness of part of the contact part so as to follow the wall shape. , Can be dispersed over the entire abutting surface so as to oppose the pressing force of the drawing pressure portion at a position substantially mirror-symmetrical. For this reason, the bathtub handrail of the present invention can form a balanced clamped state inside and outside the bathtub side wall without generating a rotational moment in the bathtub handrail. Further, 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. Also, the strength range (application range) of the side wall of the bathtub that is allowed is expanded.

In addition, when the outer wall of the bathtub has a step and does not have strength other than the rim portion, the pressing force (reaction force) of the contact portion can be adjusted by adjusting the thickness of part of the contact portion. It can be concentrated so that it is added only to the rim of the outer wall of the bathtub. Therefore, the handrail for bathtubs of the present invention can be firmly attached to a bathtub whose outer wall other than the rim portion does not have strength, and the non-strength portion other than the rim portion (apron, makeup) It will also be possible to prevent damage to the board.

Further, in the bathtub handrail according to the present invention, it is possible to dispose the moving device for retracting the movable frame on the side surface of the bathtub side wall through the retracting operation portion, and the horizontal portion disposed on the upper surface of the bathtub side wall or Since it is not necessary to dispose the moving device at the connecting portion, it is possible to simplify the structure of the horizontal portion and the connecting portion arranged on the upper surface of the bathtub side wall and make the thickness extremely thin. Therefore, even when the handrail for a bathtub of the present invention is attached to the side wall of the bathtub, the movable frame and the fixed frame do not cause a gap or the like between the side wall of the bathtub and the lid to lower the bath temperature, Allows the lid to be attached to a bath with a high degree of tightness.

It is the whole handrail schematic diagram for a bathtub of the present invention. It is an exploded view of the handrail for bathtubs shown in FIG. It is a side view of the handrail for bathtubs shown in FIG. It is sectional drawing which cut the handrail for bathtubs shown in FIG. 3 along the bolt axis|shaft. FIG. 3 is an exploded view of a movable frame on the side having a retracting operation section shown in FIG. 2. FIG. 3 is an exploded view of a movable frame on the side having a retractable portion shown in FIG. 2. FIG. 6 is an exploded view showing a state in which the contact portion is disassembled into a contact base portion, a block (sub-block) and an elastic rubber. It is the assembly drawing which showed the state which assembled the contact base part, the block (sub block), and the elastic rubber into the contact part of two different modes. It is a schematic diagram which shows the state which attached the handrail for bathtubs of this invention to the bathtub side wall of three different shapes where an inner wall has strength but an outer wall (apron) other than a rim part does not have strength. It is a schematic diagram showing the state where the handrail for a bathtub of the present invention was attached to the bathtub side wall of three different shapes where both the inner wall and the outer wall have strength. It is a schematic diagram showing a state where the handrail for a bathtub of the present invention is temporarily attached to the side wall of the bathtub (a) and a state where the handrail is fully attached (b). It is a schematic diagram which shows the state (a) and the state (b) with which the conventional handrail for bathtubs of the type which presses a bathtub side wall from the washing side is temporarily attached to the bathtub side wall.

Hereinafter, a bathtub handrail 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.

A main configuration of a bathtub handrail 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 shows an overall outline of a bathtub handrail 1 according to the present embodiment, and FIG. 2 shows a mode 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 bathtub handrail 1 according to the present embodiment mainly has an upper grip 60 and a leg portion 5 attached thereto, and has a substantially L-shaped fixed frame 2 facing downward in a side view. A side grip 61 is attached, and the movable frame 3 is substantially U-shaped downward in a side view, and a moving device 4 for moving the movable frame 3 toward or away from the fixed frame 2. ing.

The fixed frame 2 is composed of a horizontal portion 22 arranged to face the upper surface of the bathtub side wall, and a vertical portion 20 connected to the horizontal portion 22 and arranged to face the side surface of the bathtub side wall. It is placed directly so as to contact the side surface and the upper surface of the side wall of the bathtub.

The movable frame 3 connects the retraction part 30 arranged so as to face the side surface of the bathtub side wall, the retraction operation part 31 arranged so as to oppose the retraction part 30, and the retraction part 30 and the retraction operation part 31. And a connecting portion 32 for connecting the fixed frame 2 to the fixed frame 2.

The moving device 4 is connected to the vertical portion 20 of the fixed frame 2 and the retracting portion 30 of the movable frame 3, and moves the movable frame 3 with respect to the fixed frame 2 so as to be able to move forward and backward.

FIG. 11 shows a state (a) in which the handrail 1 for bathtub of the present embodiment is temporarily attached to the bathtub side wall 10 and a state (b) in which it is fully attached. Further, in FIG. 12, as a comparative example of the handrail 1 for bathtub of the present embodiment shown in FIG. 11, a conventional handrail 1x for bathtub of the type of pressing the bathtub side wall 10 from the washing side is attached to the side wall of the bathtub. A state of temporary attachment (a) and a state of final attachment (b) are shown.

As described above, in the handrail 1 for the bathtub of the present embodiment, the fixed frame 2 is directly placed on the upper surface of the side wall of the bathtub, and the movable frame 3 only moves back and forth on the fixed frame 2. For this reason, the handrail main body 6 (particularly the upper grip 60) is provided on the fixed frame 2 which is fixed at the position by contacting with the upper surface and the outer wall surface of the bathtub side wall, and the pulling pressure portion 33 is provided on the fixed frame. Since the fixed frame 2 is arranged on the bathtub side of the movable frame 3 connected to the fixed frame 2, the fixed frame 2 is immovable with respect to the side wall of the bath layer even when the movable frame 3 and the drawing pressure unit 33 are moved forward and backward. Therefore, in the bathtub handrail 1 of the present embodiment, as shown in FIGS. 11A and 11B, even when the movable frame 3 and the pulling pressure portion 33 are pulled into the bathtub side wall 10, the fixed frame 2 and the bathtub side wall. No positional deviation or stress (friction force) is generated between the upper surface of 10 and the upper surface of 10 (for example, the distance L ₀ between the center of the handrail 4 and the center of the bathtub side wall 10 is constant and constant), and in an extremely stable state. Can be installed.

FIG. 3 shows a side view of the bathtub handrail 1 according to the present embodiment, and FIG. 4 is a cross-sectional view of the bathtub handrail 1 according to the present embodiment taken along the bolt shaft 40. It is shown.

As will be understood with reference to FIGS. 3 and 4, in the handrail 1 for bathtub of the present embodiment, the clamp on the bathtub side wall fixes the retracting portion 30 and the pulling pressure portion 33 of the movable frame 3 by the moving device 4. It is performed by pulling in the frame 2. Therefore, when the moving device 4 clamps the side wall of the bathtub, the moving device 4 separates the pull-in operation portion 31 of the movable frame 3 from the vertical portion 20 of the fixed frame 2 so that the moving device 4 can connect via the connecting portion 32 of the movable frame 3. The pulling portion 33 of the pull-in portion 30 functions so as to come close to the contact portion 21 of the vertical portion 20, and the pull-in operating portion 31 should come close to the vertical portion 20 when the clamp on the side wall of the bathtub is released. Thus, the pulling portion 33 of the pull-in portion 30 functions to be separated from the contact portion 21 of the vertical portion 20 via the connecting portion 32.

For this reason, in this embodiment, the moving device 4 for retracting the movable frame 3 can be arranged on the side surface of the bathtub side wall via the retracting operation portion 31, and the horizontal portion 22 arranged on the upper surface of the bathtub side wall. Since it is not necessary to provide it on the connection part 32 or the connection part 32, it is arranged on the upper surface of the side wall of the bathtub even though it is a handrail for bathtub of the type in which the movable frame is drawn to the fixed frame side as described in Patent Document 5. The structures of the horizontal portion 22 and the connecting portion 32 can be simplified, and the thickness of the horizontal portion 22 and the connecting portion 32 can be made extremely thin. As a result, even when the handrail 1 for bathtub of the present embodiment is attached to the side wall of the bathtub, the movable frame 3 and the fixed frame 2 cause a gap or the like between the side wall of the bathtub and the lid, which lowers the bath temperature. And allows the lid to be attached to the bathtub with a high degree of tightness.

FIG. 5 shows an exploded view of the first movable frame 3x of the movable frame 3 shown in FIG. 2 on the side having the retraction operation portion 31, and FIG. 6 has the retraction portion 30. An exploded view of the second movable frame 3y on the side is shown.

In the present embodiment, the movable frame 3 includes a first movable frame 3x (FIG. 5) having a substantially L-shaped downward shape so that the separation distance between the retracting portion 30 and the retracting operation portion 31 can be adjusted. The first movable frame 3x and the second movable frame 3y are separated from the first movable frame 3x and are independent of each other, and are composed of a second substantially L-shaped movable frame 3y (FIG. 6) facing downward. And are connected via respective connecting portions 32x and 32y. Further, although not shown, the adjustment of the separation distance between the pull-in portion 30 and the pull-in operating portion 31 is performed by, for example, configuring the pull-in portion 30 and/or the pull-in operating portion 31 as separate and independent parts with respect to the connecting portion 32. However, this can also be achieved by making it possible to change the attachment position with respect to the connecting portion 32.

When the separation distance between the retracting portion 30 and the retracting operation portion 31 is adjustable, the separation distance between the retracting portion 30 and the retracting operation portion 31 is adjusted in advance to the thickness of the side wall of the bathtub, whereby the movable frame 3 Can be kept to the minimum width dimension needed to clamp the bathtub sidewalls. Therefore, the clamp operation by the moving device 4 can be reduced to shorten the mounting time, and the protruding portion of the movable frame 3 after the mounting from the side wall of the bathtub can be minimized.

Although not shown, when the connecting portion 32 is arranged above the horizontal portion 22 as in the bathtub handrail 1 of the present embodiment, the movable frame 3 changes the horizontal connecting angle with respect to the fixed frame 2. It may be attached so that it can swing. When the movable frame 3 is swingably attached to the fixed frame 2, the clamp portions of the movable frame 3 and the fixed frame 2 are curved to smoothly follow the side wall of the bathtub having a non-uniform thickness, and the handrail main body for the bathtub is provided. Can be firmly attached to the side wall of the bathtub.

Further, when the movable frame 3 itself is swingably attached, the swinging angle that the pulling pressure portion 33 should share becomes small even for the same curved and uneven bathtub side wall, so that the fixed frame 2 and the movable frame 3 are movable. The size of the frame 3 or the size of the handrail main body for bathtub can be made compact.

In the present embodiment, as shown in FIG. 5, the first movable frame 3x is a piece-like body, and the retracting operation section 31 is disposed substantially vertically and is connected to the retracting operation section 31 and is substantially horizontal. It includes a first connecting portion 32x arranged at. The retracting operation part 31 is provided with a circular opening 310 for mounting the moving device 4, and the first connecting part 32x can slide the second connecting part 32y of the second movable frame 3y. Two screw holes 320 for attachment and a slit-shaped elongated hole 321 are provided. Further, the slit-shaped long hole 321 is engaged with the screw attached to the screw hole 221 (FIG. 2) of the horizontal portion 22 of the fixed frame 2 so that the movable frame 3 is slidably attached to the fixed frame 2. It also plays a role.

As shown in FIG. 6, the second movable frame 3y is also a piece and has a retracting portion 30 arranged substantially vertically, and a second portion connected to the retracting portion 30 and arranged substantially horizontally. It includes a connecting portion 32y. A side grip 61 is screwed to the outside of the pull-in portion 30, and two pulling pressure portions 23 are swingably attached to the inside of the pull-in portion 30. Further, in the second connecting portion 32y, two parallel slits 322 with locking grooves for aligning with the screw holes 320 of the first connecting portion 32x and screwing with a screw, and further the first connecting portion 32y. The movable frame 3 can be screwed to the fixed frame 2 at an arbitrary position by aligning it with the elongated hole 321 of the connecting portion 32x and the screw hole 221 (FIG. 2) provided in the horizontal portion 22 of the fixed frame 2. A cut 323 is provided.

Each of the slits 322 with a locking groove of the second connecting portion 32y is formed with three locking grooves 324 protruding laterally from the slit. Therefore, when the body of the screw (not shown) fixed to the screw hole 320 of the first coupling portion 32x is arranged in the slit other than the locking groove 324, the second movable frame 3y. The second connecting portion 32y can be smoothly slid with respect to the first connecting portion 32x of the first movable frame 3x. On the other hand, when the body of the screw fixed in the screw hole 320 of the first connecting portion 32x is locked in the locking groove 324, the second connecting portion 32y of the second movable frame 3y is , Cannot be slid with respect to the first connecting portion 32x of the first movable frame 3x, and is firmly fixed by tightening the screw.

As described above, the first movable frame 3x and the second movable frame 3y are screwed by aligning the screw holes 320 of the first connecting portion 32x with the locking grooves 324 of the second connecting portion 32y. They are fixed to each other. Further, in the first movable frame 3x and the second movable frame 3y, the slot 321 of the first connecting portion 32x and the cut 323 of the second connecting portion 32y are provided in the screw hole 221 (of the horizontal portion 22 of the fixed frame 2). Since it can be engaged with the screw attached to FIG. 2), the movable frame 3 can be slidably attached to the fixed frame 2 and can be screwed (supported at three points) at three points. Therefore (see FIG. 1), it is possible to strongly prevent the second movable frame 3y from rotating in the horizontal direction with respect to the first movable frame 3x.

FIG. 7 shows a state in which the contact portion 21 of the fixed frame 2 is disassembled into the contact base portion 210, the block 211 and the elastic rubber 214, and FIG. 8 shows the contact base portion 210 of the fixed frame 2. The state is shown in which the sub blocks 212a to 212c, 213a to 213c and the elastic rubbers 214a to 214c are assembled to the contact portions 21 and 21a in two different modes.

In the contact portion 21 of the present embodiment, elastic rubbers 214 (214a to 214c) are provided on the surface of the contact base 210 and the surface of the block 211 for the purpose of improving grip force by preventing slippage and preventing damage to the bathtub side wall. It is detachably attached. Further, the elastic rubber 214 is detachably attached by fitting the circular convex portion 220 provided on the back surface of the elastic rubber 214 into the circular concave portion 230 provided on the surfaces of the block 211 and the contact base 210.

For example, as will be understood with reference to FIG. 8B, in the bathtub handrail 1 according to the present embodiment, the contact portion 21a of the fixed frame 2 has the thickness of the upper region and the lower region of the abutting portion 21a at the remaining middle. It can be made thicker or thinner than the thickness of the region.

The thickening or thinning of the thickness of a partial region of the abutting portions 21, 21a can be performed by attaching or detaching the abutting portions 21, 21a to the abutting base 210 provided on the fixed frame 2. , And sub-blocks 212a to 212c and 213a to 213c each having a predetermined thickness and a smaller area than the contact surface of the contact base 210 (see FIG. 8). That is, in this embodiment, by attaching the blocks 211a to 211c and/or the sub-blocks 212a to 212c, 213a to 213c to the upper region and the lower region of the contact base 210, for example, as shown in FIG. 8B. In addition, the thickness of a partial region of the contact portion 21a can be made thicker or thinner than the thickness of the remaining intermediate region.

In addition, in the present embodiment, the block 211 is divided into a plurality of blocks 211a (212a, 213a), 211b (212b, 213b), 211c (212c, 213c) so as to vertically divide the entire contact surface of the contact base 210. 8), a plurality of blocks 211a (212a, 213a), 211b (212b, 213b), 211c (212c, 213c) having a smaller area than the contact surface of the contact base 210 are, for example, shown in FIG. As shown in FIG. 8A, if the thickness of the entire area of the contact portion 21 can be changed by uniformly mounting (or removing) all the blocks 211a to 211c, for example, FIG. As shown, by removing the intermediate block 211b (212b, 213b), the thickness of the upper region (block 211a portion) and the thickness of the lower region (block 211c portion) of the contact portion 21a are adjusted to the intermediate region thickness. The thickness can be made thicker than (the portion where the contact base 210 is exposed). Further, although not shown, by removing the upper block 211a (212a and/or 213a) and the lower block 211c (212c and/or 213c), the thickness of the intermediate region of the contact portion 21a is adjusted to the upper region and the lower region. It can also be made thicker than the thickness.

As is well understood with reference to FIG. 7, the block 211 of the contact portion 21 of the present embodiment has three blocks 211a (212a, 213a), 211b (212b, 212b, 212b, 212b, 212b, which have different widths in the vertical direction. 213b) and 211c (212c, 213c). Therefore, in the bathtub handrail 1 of the present embodiment, as shown in FIGS. 9 and 10, the bathtub side walls 9a and 9b have steps of various shapes having different widths (heights) in the vertical direction. In this case, the contact portion 21 can be locally contacted with the step portion (see FIGS. 9A to 9C), or the contact portion 21 can be contacted with the entire outer wall while following the step shape. It is possible (see FIGS. 10A to 10C).

As described above, in the bathtub handrail 1 according to the present embodiment, the blocks 211a, 211b, and 211c of the contact portion 21 are replaced with other blocks 212a to 212c and 213a to 213c having the same or different sizes and thicknesses. Or, by attaching other blocks 212a to 212c, 213a to 213c having the same or different sizes and thicknesses on the already mounted block 211, the thickness of the entire area of the contact portion 21 can be changed. (FIG. 8A), or the thickness of the upper region and the lower region of the contact portion 21a can be made thicker or thinner than the thickness of the remaining intermediate region (FIG. 8B). In addition, in the present embodiment, the blocks 211a to 211c and/or the sub-blocks 212a to 212c, 213a to 213c are fixed or integrally molded to the upper region or the lower region of the contact base 210 in advance so that one of the contact parts 21 is formed. You may prepare the handrail for bathtubs whose thickness of a partial region is thicker or thinner than the thickness of the remaining region in advance.

In this embodiment, the blocks 211a, 211b, and 211c are composed of sub-blocks 212a to 212c, 213a to 213c that are detachably stacked and have the same or different sizes and thicknesses. Therefore, in the present embodiment, by changing the number of stacked sub-blocks 212a to 212c, 213a to 213c and the combination of the stacked sub-blocks 212a to 212c, 213a to 213c, the entire area or a partial area of the contact portion 21 can be obtained. Can be changed to various thicknesses. As a result, in the bathtub handrail 1 according to the present embodiment, even when the bathtub side walls 9a and 9b have various uneven steps, as shown in FIGS. Can be locally contacted with the unevenness of the step (see FIGS. 9A to 9C), or can be contacted with the entire outer wall by following the unevenness of the step (FIG. 10A). )-(C)). If the sub-block is configured as a thinner plate-like component like the sub-blocks 212a to 212c, the thickness of the contact portion 21 can be adjusted more finely.

In the present embodiment, the blocks 211 (211a to 211c and 212a to 212c, 213a to 213c) are connected to the contact base 210 of the fixed frame 2, the blocks 211 (211a to 211c and 212a to 212c, 213a to 213c) and others. The block 211 (211a to 211c and 212a to 212c, 213a to 213c) is connected to the contact base 210 and/or a circular convex portion 240 on the surface of the block 211. Is achieved by providing a concave portion that fits with the convex portion 240 and fitting the concave portion of the block 211 into the abutting base 210 or the convex portion 240 of another block 211. In addition, the concave portion may have not only an opening portion that substantially completely accommodates the convex portion 240 but also a structure in which the convex portion 240 is partially surrounded from the periphery by a plurality of short protrusions, for example.

In this embodiment, a plurality of convex portions 240 provided on the front surface of the contact base 210 and/or the block 211 and a plurality of concave portions provided on the rear surface of the block 211 are arranged. Although not shown, the convex portion 240 and the concave portion may be provided with a concave portion on the front surface of the contact base 210 and/or the block 211, and the convex portion 240 may be provided on the rear surface of the block 211, contrary to the above-described configuration. In the present embodiment, each block 211 is formed with a hole or an elongated hole 250 for screwing, and each block 211 uses a screw 260 for the purpose of completely preventing positional displacement or dropping. It is screwed to the screw hole 270 of the contact base 210. For this reason, the holes or slots 250 provided in each block 211 form a two-step wide opening having a downward convex cross section so that the body of the screw 260 can pass through but the head does not pass through. ing.

As described above, in the present embodiment, the connection between the block 211 and the contact base 210 and the connection between the block 211 and another block 211 are circular protrusions that cannot physically move in the direction orthogonal to the fitting direction. Since the fitting structure of 240 and the concave portion is used, even if a lateral force for tilting the handrail body 6 is applied, for example, between the block 211 and the contact base 210 and the block 211, There is no positional deviation with other blocks 211.

FIG. 9 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 does not have strength. Has been done. In the bathtub side wall 9a of FIG. 9A, the rim portion 90a is deeper than the apron 91a, and in the bathtub side wall 9a of FIG. 9B, the rim portion 90a is substantially flush with the apron 91a. The bathtub side wall 9a in (c) has a shape in which the rim portion 90a travels more than the apron 91a. Further, FIG. 10 shows a state where the bathtub handrail 1 of the present embodiment is attached to the bathtub side wall 9b having three different shapes, both the inner wall and the outer wall of which have strength. In the bathtub side wall 9b of FIG. 10A, the rim portion 90b is deeper than the outer wall 91b other than the rim portion 90b, and in the bathtub side wall 9b of FIG. 10B, the rim portion 90b is the outer wall 91b other than the rim portion 90b. The bathtub side wall 9b in FIG. 10C has a shape that is substantially flush with the rim portion 90b and travels more than the outer wall 91b other than the rim portion 90b.

As shown in FIGS. 9 and 10, in the bathtub handrail 1 according to the present embodiment, the contact portion 21 of the fixed frame 2 that contacts the outer wall of the bathtub has a partial region whose thickness is smaller than that of the remaining region. Since the inner wall of the bathtub can be made thicker or thinner, the shape and form of the bathtub are not selected in principle, and even if the inner wall and the outer wall of the bathtub are made of members having strength (Fig. 10), the inner wall of the bathtub is An outer wall having strength but other than the rim portion 90a can be attached even to a bathtub (FIG. 9) having no strength.

Specifically, as shown in FIGS. 10A to 10C, when the outer wall of the bathtub is a strong outer wall including the case where there is a step near the rim portion 90b, the outer wall of the present embodiment is In the handrail 1 for bathtub, the pressing force (reaction force) of the contact portion 21 is adjusted to be substantially the same as the pressing force of the pulling portion 33 by adjusting the thickness of a part of the contact portion 21 so as to follow the wall surface shape. It can be dispersed over the entire abutting surface so as to face each other at a mirror symmetrical position. For this reason, the bathtub handrail 1 of the present embodiment can form a balanced clamped state inside and outside the bathtub side wall 9b without generating a rotational moment in the bathtub handrail 1. Further, when the pressing force (reaction force) of the contact portion 21 is dispersed, the pressing force (reaction force) per unit area is also reduced, so that the risk of damaging the bathtub side wall 9b is reduced and the handrail for the bathtub is reduced. The strength range (application range) of the bathtub side wall 9b in which the mounting of No. 1 is allowed is also expanded.

As shown in FIGS. 10(a) to 10(c), even if the inner wall and the outer wall of the bathtub are integrally manufactured, the outer wall has sufficient strength if the inside is hollow. In that case, if the legs 5 shown in FIGS. 1 and 2 are attached to the fixed frame 2, it is possible to effectively prevent the handrail 1 for the bathtub from falling over and falling from the side wall of the bathtub. The higher safety of the bathtub handrail 1 is ensured.

In addition, as shown in FIGS. 9A to 9C, the outer wall of the bathtub includes a case where there is a step near the rim portion 90a and is an outer wall having no strength other than the rim portion 90a, The bathtub handrail 1 of the present embodiment is concentrated so that the pressing force (reaction force) of the contact portion 21 can 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 21. Can be made Therefore, the bathtub handrail 1 of the present embodiment can be firmly attached even to a bathtub whose outer wall other than the rim portion 90a has no strength, and the apron having no strength other than the rim portion 90a. It is also possible to prevent damage to 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 having no strength, the bathtub handrail is used. In order to prevent tipping over of No. 1 and fall off from the bathtub side wall 9a, the leg portion 5 in which the rubber leg 56 at the end abuts on the floor surface as shown in FIGS. 2 is preferably attached. In this case, even if the load is applied in the lateral direction by the user or the center position of the clamping force inside and outside the bathtub is eccentric, the handrail 1 for bathtub is extremely effectively prevented from tilting or tipping over. can do.

In consideration of designability and maintainability, recent unit baths are constructed with a rim part that has strength that is continuous with the inner wall of the bathtub outer wall, and a removable apron that does not have strength at the bottom of the rim part. Often. Therefore, as in the bathtub handrail 1 of the present embodiment, the contact portion 21 of the fixed frame 2 is configured such that the thickness of the upper region thereof is thicker or thinner than the thickness of the lower region thereof. Since the step formed on the upper part of the outer wall of the bathtub (the connecting portion between the rim portion and the apron) can be easily absorbed, it can be applied to most unit baths.

The pulling portion 33 (FIG. 6) attached to the inner side of the movable frame 3 is provided to press the wall surface in the bathtub accurately and increase the grip force. Therefore, the length of the pulling pressure portion 33 in the vertical direction is equal to or longer than the length of the contact portion 21 in the vertical direction, and the anti-slip rubber 34 is mounted on the surface thereof. Further, the pulling pressure portion 33 is attached to the inner side of the fixed frame 2 so as to be able to swing, with an emphasis on being able to flexibly follow the shape of the bathtub side wall that is curved or inclined, but like the contact portion 21, It may be fixed to the inside of the movable frame 3 so as not to swing. Further, the number of the pulling pressure portions 33 may be one or may be two or more as shown in the drawing. Further, when attaching two or more pulling pressure portions 33, a part of the pulling portions 33 may be swung. It may be possible and a part may be fixed.

As will be understood with reference to FIG. 6, the two pulling portions 33 are each pivotally supported by the fixing pin to the connecting plate 35, and the connecting plate 35 is fixed by the fixing pin to the drawing portion of the second movable frame 3y. 30 is pivotally supported. Since the play is provided for fixing the two pulling portions 33 and the fixing of the connecting plate 35 using the respective fixing pins, the two pulling portions 33 can swing their heads with respect to the connecting plate 35, respectively. It is possible, and the connecting plate 35 can also swing its head with respect to the retracting part 30.

The pulling portion 33 can be formed of a flat plate made of resin or metal, hard/soft rubber, or a combination thereof to increase the frictional force with the side wall of the bathtub, and serves as an integral part of the pulling portion 30. It may be configured, or may be configured as a separate component separated from the retracting portion 30 as in the present embodiment. Further, when the pulling pressure portion 33 is configured as a separate component from the pulling portion 30, as described above, the pulling pressure portion 33 is arranged so that the pulling pressure portion 33 can smoothly follow the curved or inclined bathtub side wall. It may be attached so that it can be swung.

As shown in FIG. 5, the moving device 4 of the present embodiment rotates the nut 41 attached to the pull-in operation portion 31, the bolt shaft 40 screwed with the nut 41, and the nut 41. And a handle knob 42 for performing the operation. The nut 41 is rotatably connected to the opening 310 of the retraction operation portion 31, and the tip end portion of the bolt shaft 40 is non-rotatably attached to the attachment hole 200 of the vertical portion 20.

When the moving device 4 is configured by the nut 41 and the bolt shaft 40, the retracting operation portion 31 can be easily moved toward or away from the vertical portion 20 by the screw shaft 40 moving forward and backward, and the state is surely retained. can do. Although not shown, when the bolt shaft 40 is swingably connected to the vertical portion 20, the movable frame 3 can be swingably fixed to the fixed frame 2 as described above.

Further, in the case of the present embodiment, the bolt shaft 40 is screwed back and forth by rotating the nut 41 attached to the pull-in operating portion 31, so that the position of the handle knob 42 for rotating the nut 41 is the pull-in operating portion. It is unchanged with respect to 31, and it is possible to reduce the number of dangerous portions protruding from the bathtub handrail 1. For this reason, the handle knob 42 is provided therein with a storage chamber 420 for storing the rear end portion of the bolt shaft 40 that is retracted by rotating the nut 41. It also functions as a protective cover that protects the user from 40.

Further, in the present embodiment, the tip end portion of the bolt shaft 40 is non-rotatably connected to the fixed frame 2, and the nut 4 screwed with the bolt shaft 40 is rotatably attached to the movable frame 3. .. Therefore, when the nut 4 attached to the movable frame 3 is rotated by the handle knob 42, the bolt shaft 40 screwed with the nut 4 changes the relative positions of the movable frame 3 and the fixed frame 2, and the movable frame 3 is rotated. The drawing pressure part 33 attached to 3 is drawn toward the bathtub side wall.

Therefore, in the bathtub handrail 1 of the present embodiment, even after the fixed frame 2 is placed in contact with the bathtub side wall, even if the pulling pressure portion 33 is pulled into the bathtub side wall, the fixed frame 2 and the fixed frame 2 are not removed. There is no problem that the attached upper grip 60 moves away from the side wall of the bathtub (see FIG. 11), and as a result, the upper grip 60 has a structure in which it is difficult to tilt toward the washroom side. Further, in order to fix the handrail 1 for the bathtub, it is not necessary to attach a pressing plate or the like that approaches and separates from the fixed frame 2 from the washing place side.

In the moving device 4 of the present embodiment, between the handle knob 42 and the nut 41, a turning force is transmitted from the handle knob 42 to the nut 41 when the force is less than a predetermined force, and when the force is not less than the predetermined force. The torque transmission/cutoff means 43 for cutting off the transmission of the turning force from the to the nut 41 is incorporated.

When the moving device 4 has the torque transmitting/blocking means 43 incorporated therein, even if the user turns the handle knob 42 and pulls the pull-in portion 30 strongly toward the vertical portion 20, the side wall of the bathtub is not damaged, and it is necessary. The handrail 1 for bath can be attached to the side wall of the bath with a sufficient pulling pressure (clamping force).

In the bathtub handrail 1 of the present embodiment, the tip end portion of the bolt shaft 40 is processed into a rectangular shape having the flange 400, and the vertical portion 20 of the fixed frame 2 is fitted to the tip end portion of the bolt shaft 40. A mounting hole 200 is provided. Therefore, the tip end portion of the bolt shaft 40 is inserted into the mounting hole 200 of the vertical portion 20, and the stopper cover 401 having an outer diameter larger than that of the mounting hole 200 is screwed from the side where the tip end portion is exposed. A tip portion of 40 is connected to the fixed frame 2 so as not to rotate.

On the other hand, an opening 310 is provided in the vertical portion 20 of the first movable frame 3x, and the nut 41 is fixed to the body portion 410 that is inserted into the opening 310 of the retracting operation portion 31 and the body portion 410. And a first flange portion 411 having an outer diameter larger than that of the opening 310 for contacting the retracting operation portion 31 from one side, and an opening 310 for contacting the retracting operation portion 31 from the other side. The second flange portion 412 has a large outer diameter and is detachably attached to the body portion 410.

Therefore, the nut 41 is rotatably attached to the movable frame 3 by inserting the body portion 410 into the opening 310 and attaching the second flange portion 412 from the side opposite to the first flange portion 411. .. Further, a resin washer 413 is inserted between the first flange portion 411 and the retracting operation portion 31 and between the second flange portion 412 and the retracting operation portion 31 to prevent the nut 41 from rattling. The rotation of the nut 41 with respect to the retracting operation portion 31 of the movable frame 3 is made smoother.

As shown in FIG. 5, the torque transmission/shutoff means 43 used in the present embodiment synchronizes with the rotation of the handle knob 42 and is orthogonal to the rotation axis of the handle knob 42. And a transmission portion 432 having a torque transmission surface 433 that is in contact with the torque transmission surface 431 in synchronization with the rotation of the nut 41, and the torque transmission surface 431. And the torque transmission surface 433 respectively locks the torque transmission surface 431 and the torque transmission surface 433 with each other when the transmitted rotational force is less than a predetermined value, and the transmitted rotational force has a predetermined value. The above is characterized by including a concave portion or a convex portion having an inclined surface that causes slippage between the torque transmission surface 431 and the torque transmission surface 433.

Further, in the torque transmission/shutoff means 43, the transmission portion 430 is movably attached in the rotation axis direction of the handle knob 42, and the transmission portion 430 movably attached is a transmission/reception unit facing the transmission portion 430. The transmission unit urging means 434 is provided for urging toward the portion 432. Further, the end portion of the transmission portion urging means 434 is fixed by the stopper 436 attached to the end portion of the nut 41 by the screw 435.

The center of the torque transmission surface 431 and the center of the torque transmission surface 433 of the torque transmission/cutoff means 43 are arranged coaxially with the rotation axes of the handle knob 42 and the nut 41. Further, on the torque transmission surface 431 and the torque transmission surface 433, a concave portion/a convex portion including an inclined surface inclined from the torque transmission surface 431 or the torque transmission surface 433 is formed, respectively. The inclined surface of the torque transmission surface 431 and the inclined surface of the torque transmission surface 433 are the opposite inclined surfaces when the handle knob 42 is turned so as to pull the pressure plate 33 of the movable frame 3 toward the side wall of the bathtub. It is graded to rise.

The annular transmission portion 430 having the torque transmission surface 431 is slidably mounted along the rotation axis of the handle knob 42 and the nut 41, and the elastic body (transmission portion biasing means) 434 is used to transmit the torque transmission surface. 433. The elastic body 434 is not particularly limited as long as it is elastically deformable, such as a coil spring, a disc spring, and an elastic resin material, and a known material can be used.

Therefore, a constant frictional force is always generated between the inclined surface of the torque transmission surface 431 and the inclined surface of the torque transmission surface 433. When the torque transmitted from the handle knob 42 to the nut 41 is less than a predetermined value, the inclined surface of the torque transmission surface 431 cannot ride over the inclined surface of the torque transmission surface 433 and engages with each other in a meshed state. It fits. By this engagement, the torque of the handle knob 42 is transmitted to the nut 41, and the bolt shaft 40 screwed with the nut 41 changes the relative position between the movable frame 3 and the fixed frame 2 and is attached to the movable frame 3. The drawn pressure plate 33 is drawn toward the side wall of the bathtub.

On the other hand, when the torque transmitted from the handle knob 42 to the nut 41 exceeds a predetermined value, the inclined surface of the torque transmission surface 431 slips with the inclined surface of the torque transmission surface 433. As a result, the annular transmission portion 430 having the torque transmission surface 431 retracts against the elastic body 434, and the inclined surface of the torque transmission surface 431 moves over the inclined surface of the torque transmission surface 433 to engage the two. Is released. Therefore, even if the handle knob 42 is rotated in this state, the handle knob 42 only idles with respect to the nut 41, and torque is not transmitted from the handle knob 42 to the nut 41.

In addition, a vertical surface that is substantially orthogonal to the torque transmission surface 431 is formed at the rear end of the inclined surface of the torque transmission surface 431, and a rear surface of the inclined surface of the torque transmission surface 433 is formed substantially at the rear end of the torque transmission surface 433. Vertical planes orthogonal to each other are formed. The vertical surface of the torque transmission surface 431 and the vertical surface of the torque transmission surface 433 abut and engage each other when the handle knob 43 is rotated so as to separate the pressure plate 33 of the movable frame 3 from the side wall of the bathtub. Therefore, when the handle knob 42 is rotated so as to separate the pressure plate 33 from the side wall of the bathtub, the handle knob 42 and the nut 41 always rotate in synchronization regardless of the magnitude of the torque transmitted.

As described above, in the torque transmission/cutoff unit 43, the torque transmission surface 433 that rotates in synchronization with the rotation of the nut 41 is attached to the outer peripheral surface of the nut 41. For this reason, the torque transmitting/blocking means 43 can be arranged so as to partially overlap the main body of the nut 41, so that the torque transmitting/blocking means 43 and the movable frame of the handle knob 42 including the torque transmitting/blocking means 43. The protrusion length from 3 can be suppressed.

With reference to FIGS. 1 and 2, a fixed frame 2 having an upper grip 60 and a leg 5 attached thereto in a bathtub handrail 1 of the present embodiment and having a substantially L-shape facing downward in a side view will be described.

In the present embodiment, the upper grip 60 has two support legs 600 having a plurality of pin holes 601 aligned with an insertion hole 202 of a sleeve 201 and a lock pin 204, which will be described later, and is perpendicular to the fixed frame 2. The part 22 comprises two sleeves 201 for slidably receiving the support legs 600. Further, each sleeve 201 is provided with an insertion hole 202, and a lock pin 204 biased toward the inside of the sleeve 201 by a spring 203 is attached to the insertion hole 202.

Therefore, in the handrail 1 for a bathtub according to the present embodiment, the knob 205 of the lock pin 204 is moved in a direction against the bias of the spring 203, and the support leg 600 is unlocked by the lock pin 204. The height of the grip 60 can be easily adjusted in the vertical direction. On the other hand, when the pin hole 601 of the support leg 600 is aligned with the insertion hole 202 of the sleeve 201 and the knob 205 is released, the spring 203 causes the lock pin 204 to be inserted into the pin hole 601 through the insertion hole 202. Therefore, the support leg 600 is easily locked in the sleeve 201, and the upper grip 60 is fixed to the fixed frame 2.

Further, in the bathtub handrail 1 of the present embodiment, the leg portion 5 of which the length is adjustable is attached to the vertical portion 20 of the fixed frame 2. As shown in FIG. 2, the leg portion 5 includes an outer cylindrical body 50 screwed to the fixed frame 2 with a screw 52, and an inner cylindrical body 51 slidably fitted to the outer cylindrical body 50. Has been done. Although not shown in detail, the inner cylinder body 51 has a plurality of through holes aligned with the through holes of the outer cylinder body, and the through hole of the inner cylinder body 51 is aligned with the through hole of the outer cylinder body 50 to be locked. The length of the leg portion 5 can be adjusted by inserting the pin. Further, a plurality of slits extending in the vertical direction are provided at the lower end of the outer tubular body 50, and by rotating the ring 53 on the tapered surface of the outer tubular body 50 provided with the slits, the outer tubular body 50 is rotated. The length of the leg 5 can be adjusted by reducing or expanding the lower end of the body 50. Furthermore, since the frustoconical rubber leg 56 supported by the bolt shaft 55 screwed with the nut 54 is provided at the lower end of the inner tubular body 51, the length of the leg portion 5 can be finely adjusted.

As described above, in the bathtub handrail 1 of the present embodiment, by adjusting the length of the leg portion 5 attached to the fixed frame 2, the rubber leg 56 at the tip portion is brought into contact with the floor surface of the washroom. Therefore, by using the handrail 1 for the bathtub, even if the fixed frame 2 or the movable frame 3 is subjected to a rotational moment that tends to incline the fixed frame 2 or the movable frame 3 toward the contact portion 21 side, it is sufficient. You can face each other and be safe.

In addition, in the present embodiment, since the number of legs 5 is one, the fixed frame 2 and the movable frame 3 are acted on by a rotational moment that tends to tilt the fixed frame 2 and the movable frame 3 along the wall surface of the bathtub side wall. Also, unlike the case where a plurality of legs are arranged, a gap is not created between some of the legs and the floor, and there is no rattling. Although not shown, the support leg 600 of the upper grip 60 may be directly connected to the leg so that the force applied by the user is also supported by the leg.

Below, the attachment method of the handrail 1 for bathtubs of this embodiment to a bathtub side wall is demonstrated easily. In the bathtub handrail 1 of the present embodiment, first, the first movable frame 3x and the second movable frame 3y are adjusted so that the distance between the retractable portion 30 and the retractable operating portion 31 of the movable frame 3 matches the thickness of the bathtub. Adjust the connection with and fix.

Next, the fixed frame 2 is temporarily placed at a position where the horizontal portion 22 is directly placed on the upper surface of the bathtub side wall and the contact portion 21 of the vertical portion 20 is brought into contact with the side surface of the bathtub side wall. The length of the leg 5 is adjusted so that the tip of the part 5 comes into contact with the floor surface of the washroom. In particular, when the side wall of the bathtub has a rim portion and an apron portion, the contact portion 21 is preferably brought into contact with the rim portion (see FIG. 9).

By rotating the handle knob 42, the pulling pressure portion 33 attached to the pulling portion 30 of the movable frame 3 is brought into contact with the side wall of the bathtub side wall, and the torque transmitting/blocking means 43 causes the handle knob 42 to idle (the handle knob 42 To the nut 41 is interrupted), the handle knob 42 is turned.

As a result, the bathtub handrail 1 of the present embodiment does not damage the bathtub side wall, does not cause a positional deviation or frictional force (residual stress) between the fixed frame 2 and the upper surface of the bathtub side wall, and Even a bathtub side wall having a curved or inclined shape can be firmly attached to the bathtub side wall while flexibly following it.

After attaching the handrail 1 for bathtub of the present embodiment to the side wall for bathtub as described above, the knob 205 of the lock pin 204 is moved to release the locking of the support leg 600 by the lock pin 204 to thereby release the upper grip 60. The height of the upper grip 60 is adjusted by freeing the knob 205 at a position where the pin hole 601 of the support leg 600 is aligned with the insertion hole 202 of the sleeve 201.

1, 1x ... railing for bathtub 2 ... fixed frame 20 ... vertical part 200 ... mounting hole 201 ... sleeve 202 ... insertion hole 203 ... spring 204・・・Lock pin 205 ・・・Knobs 21, 21a, 21x ・・・Abutting part (press receiving part)
210... Abutting base portion 211, 211a-211c... Block 212a-212c, 213a-213c... Sub-block 214, 214a-214c... Elastic rubber 220... Convex portion 230... Recessed portion 240・・・Convex part 250 ・・・Slot, hole 260 ・・・Screw 270 ・・・Screw hole 22 ・・・・Horizontal part 221 ・・・Screw hole 3 ・・・Movable frame 3x ・・・1st movable frame 3y... 2nd movable frame 30... Retracting part 31... Retracting operation part 310... Opening 32... Connection part 32x... 1st connection Part 32y... Second connection part 320... Screw hole 321... Oblong hole 322... Slit with locking groove 323... Notch 324... Locking groove 33, 33x... Pulling part (pressing part)
34...Slip prevention rubber 35...Connection plate 4, 4x...Movement device 40...Bolt shaft 400...Flange 401...Fixing cover 41...Nut 410 ...Body 411...First flange 412...Second flange 413...Washer 42...Handle knob 420...Storage chamber 421...Storage barrel 422... ..Rotary flange 43....Torque transmission/cutoff means 430...Transmission portion 431...Torque transmission surface 432...Transmission portion 433...Torque transmission surface 434...Biasing means 435・・・Screw 436 ・・・Stopper 5 ・・・Leg part 50 ・・・・Outer cylinder 51 ・・・・Inner cylinder 52 ・・・・Screw 53 ・・・・・・Ring 54 ・・・Nut 55・・・・Bolt shaft 56・・・・・・Rubber leg 6,6x・・・Handrail body 60・・・・Upper grip 600・・・Support leg 601・・・Pin hole 61・・・・side grip 9, 9a, 9b ... tub sidewalls 90a, 90b ... rim 91a ... apron 91b ... outer wall L _{0, L 1, L} 2 of ... handrail center and the bathtub side wall Distance from center

Claims (14)

A pull-in portion that is provided with a pulling pressure portion that comes into contact with one side surface of the bathtub side wall and that is arranged so as to face the one side surface of the bathtub side wall;
A retracting operation portion arranged to face the retracting portion,
A movable frame including a connecting portion that connects the retracting portion and the retracting operation portion,
With the handrail body,
A horizontal portion arranged so as to face the upper surface of the bathtub side wall,
A fixed frame comprising a vertical portion connected to the horizontal portion and provided with an abutting portion arranged so as to face the other side surface opposite to the one side surface of the bathtub side wall;
A moving device that is connected to the pull-in operating portion and moves the pull-in operating portion toward or away from the vertical portion is provided, and the contact portion has a thickness of a partial region thereof that of the remaining region. A handrail for a bathtub, which is thicker or thinner than the above, or whose partial region can be thicker or thinner than the remaining region. The bathtub according to claim 1, wherein the contact portion includes a contact base portion provided on the fixed frame, and a block detachably attached to a partial region of the contact base portion. Handrail. The abutting portion is detachably attached to the vertical portion of the fixed frame and includes a plurality of blocks obtained by dividing the abutting portion in a vertical direction. Handrail for bathtub. The handrail for bathtub according to claim 3, wherein at least two blocks among the plurality of blocks have different widths in the vertical direction. The block may be replaced with another block having the same or different thickness, or another block having the same or different thickness may be detachably mounted on the block. Handrail for bathtub according to paragraph. The handrail for bathtub according to any one of claims 2 to 4, wherein the block is composed of a plurality of subblocks that are detachably stacked and have the same or different thickness. The contact base and/or the block is provided with a convex portion on the front surface thereof, and the block is provided with a concave portion on the back surface thereof, and the block is formed with the concave portion of the contact base or another block. The handrail for a bathtub according to claim 2, wherein the handrail for a bathtub is connected by being fitted into the convex portion. The handrail for a bathtub according to claim 2, wherein the block is screwed to the abutting base or another block via a screw. 9. The handrail for a bathtub according to claim 1, wherein the contact portion has a thickness of an upper region thicker or thinner than a thickness of a lower region thereof. The moving device separates the retraction operation part from the vertical part to bring the retraction part close to the vertical part via the connecting part, and the retraction operation part to the vertical part. The handrail for a bathtub according to any one of claims 1 to 9, wherein the lead-in portion is separated from the vertical portion via the connecting portion by being brought close to each other. .. The moving device has a nut rotatably attached to the pull-in operation portion, a handle knob for rotating the nut, and a tip end portion connected to the vertical portion of the fixed frame, and The handrail for a bathtub according to any one of claims 1 to 10, wherein the handrail for a bathtub is configured with a bolt that is screwed onto a nut . If the force is less than the predetermined force, the turning force is transmitted from the handle knob to the nut, and if the force is more than the predetermined force, torque transmission/interruption means for interrupting the transmission of the rotational force from the handle knob to the nut is further included. The handrail for a bathtub according to claim 11, wherein the handrail is provided. The handrail for a bathtub according to any one of claims 1 to 12, wherein a separation distance between the retraction part and the retraction operation part is adjustable. The handrail for a bathtub according to any one of claims 1 to 13, wherein the fixed frame is provided with a leg portion whose end portion is in contact with the floor surface.

Images