JP5780861B2 - Handrail for bathtub - Google Patents

Description

  The present invention relates to a handrail for a bathtub, and more particularly to a pressing mechanism for a pressing plate of a handrail for a bathtub that is detachably attached to a side wall of the bathtub.

  Conventionally, as described in, for example, Japanese Patent Application Laid-Open No. 11-299673 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2000-336882 (Patent Document 2), when an elderly person enters and exits a bathtub, It has been known that a handrail for a bathtub having a grip is detachably attached to a side wall of the bathtub so that it can be easily supported.

  However, these handrails for bathtubs are directly attached to the side wall of the bathtub via a pressing plate that is screwed back and forth by rotating the handle or knob by the user. Therefore, if the clamping force of the pressing plate is too strong, When the side wall of the tub is broken and the tightening force of the pressing plate is insufficient, the side wall of the bathtub is detached. In addition, the side wall of the bathtub is not necessarily composed of only a planar shape having the same thickness, and there are some having a curved surface with different thicknesses. Therefore, basically, the pressing plate has a flat pressing surface. With only use, the pressing plate cannot sufficiently follow the shape of the side wall, and it is difficult to firmly fix the handrail for the bathtub to the desired position of the side wall of the bathtub.

  Therefore, in order to solve the above-described problem, as described in, for example, Japanese Patent Application Laid-Open No. 2010-246691 (Patent Document 3), a rotation transmission blocking mechanism (constant torque transmission) is applied to a handle or a knob that advances and retracts the pressing plate. A bathtub handrail has been developed in which a pressing force exceeding a certain level is not transmitted to the pressing plate by providing a mechanism.

  Further, in order to adapt the pressing plate to the side wall of the bathtub having a different thickness or curved surface, as described in the above-mentioned Patent Document 3, Japanese Patent Application Laid-Open No. 2004-261327 (Patent Document 4), etc. A bathtub handrail and the like have been developed which are divided into a plurality of small pressing plates and each pressing plate can be shaken according to the shape of the side wall of the bathtub.

  However, in the system bath that has been rapidly spreading in recent years, the side wall of the bathtub is composed of a bathtub body panel and a removable decorative panel facing the washing place, and the inside of the side wall is substantially hollow. It does not have sufficient strength against pressing. In addition, because the shape of the bathtub tends to be familiar with the human body, such as the universal design, and the design is gentle on the movement of the human body, the side walls of the bathtub have a more complicated curved surface and gradient than before. Is becoming increasingly used.

  For such a system bath, a hand for a bathtub provided with a rotation transmission blocking mechanism (constant torque transmission mechanism) and a swing mechanism on a pressing plate that is reduced in size by division as described in Patent Documents 3 and 4 Even if the sliding is applied, deformation of the side wall of the bathtub cannot be sufficiently prevented, and there is a problem that the side wall is damaged due to this. By simply dividing the pressing plate and providing it with a rotation transmission blocking mechanism (constant torque transmission mechanism) and a swing mechanism, when pressing the pressing plate against the side wall of the bathtub, the pressing plate and the side wall of the bathtub are unevenly pressed. This is because pressure is generated.

  Therefore, when trying to fix the handrail for the bathtub with a normal or relatively strong tightening force against the side wall of the bathtub, the thickness of the side wall of the bathtub is deformed so as to be locally reduced, and between the pressing plate and the side wall. There was an inconvenience that a handrail for a bathtub could not be firmly fixed by generating a gap. In addition, when trying to fix the handrail for bathtub with a weak tightening force so as not to damage the side wall of the bathtub, there is a portion between the pressing plate and the side wall of the bathtub where substantially no pressing force is applied, There has also been a disadvantage that displacement due to slippage and detachment from the side walls cannot be effectively prevented.

  In addition, for a bathtub having a complicated shape and a side wall that does not have sufficient strength against a side pressure, such as a system bath, for example, pressing of a pressing plate of a handrail for a bathtub It is also conceivable to attach an elastic rubber having a sufficient thickness to the surface.

  However, even if a thick elastic rubber that can fully fit the shape of the side wall of the bathtub is applied to the pressing plate of the handrail for the bathtub, the uneven pressing force generated between the pressing plate and the side wall is sufficiently eliminated. I can't do it. Moreover, since the elastic rubber having such a thick thickness is elastically deformed not only in the pressing direction but also in the plane direction along the side wall of the bathtub, the positional deviation of the handrail for the bathtub after installation can be eliminated. There was a problem that I could not. Furthermore, when importance is attached to the adhesiveness to the side wall of the bathtub and, for example, a rubber material or the like is selected as the elastic rubber, there is also a problem that a crimp mark is easily generated on the side wall of the bathtub.

JP 11-299673 A JP 2000-336882 A JP 2010-246691 A JP 2004-261327 A

  Therefore, the present invention has a complicated shape like a system bath, and in a bathtub having a side wall that does not have sufficient strength against pressing from the side, without forcibly deforming the side wall, And it aims at providing the press mechanism of the press plate of the handrail for bathtubs which can fix to the said side wall firmly, without producing the position shift and detachment | desorption by sliding.

  The inventors of the present invention have made extensive studies on a pressing mechanism that conforms to the complicated shape of the side wall of the bathtub and generates a constant pressing force on the pressing plate even with a weak tightening force. It has been found that the above object can be achieved by attaching the urging means between the pressing plate and the pressing tool so as to be movable back and forth, and the present invention has been completed.

  That is, according to the present invention, a substantially L-shaped fixed frame having a horizontal part and a vertical part attached to the side wall of the bathtub, and a horizontal part and a vertical part slidably attached to the horizontal part of the fixed frame are provided. A substantially L-shaped movable frame, a pressing tool attached to the fixed frame and / or the movable frame, and a pressing plate attached to the pressing tool so as to be movable back and forth, and between the pressing tool and the pressing plate, There is provided a handrail for a bathtub characterized in that biasing means for biasing the pressing plate in the direction of separating the pressing plate from the pressing tool is provided.

  Moreover, as a modification of the handrail for bathtubs described above, the horizontal portion attached to the side wall of the bathtub is the first pressing tool attached to the fixed frame via the first connecting means so as to be capable of moving forward and backward. And a substantially L-shaped fixed frame having a vertical portion, a first pressing tool attached to the fixed frame via a first connecting means so as to be able to advance and retract, and movable back and forth to the first pressing tool A first pressing plate attached to the frame, a substantially L-shaped movable frame having a horizontal portion and a vertical portion slidably attached to the horizontal portion of the fixed frame, and so as to face the first pressing plate. And a second pressing plate attached to the movable frame, and further between the first pressing tool and the first pressing plate in a direction of separating the first pressing plate from the first pressing tool. There is an urging means to urge Tub handrail is provided, characterized by being. In this modification, the second pressing plate may be attached to the movable frame via the second connecting means for the purpose of allowing the second pressing plate to swing with respect to the side wall of the bathtub.

  In general, when elastic rubber is applied to the pressure plate of a handrail for a bathtub, there is a practical limit to the thickness of the rubber that is useful for preventing displacement of the pressure plate along the side wall of the bathtub. The rubber thickness and deformation allowance in the pressing direction cannot be increased. For this reason, when the side wall of the bathtub has a large curved surface or large unevenness, the elastic rubber cannot be sufficiently deformed in conformity with these shapes, and even within the same rubber, a large push in a region where the deformation is large. A non-uniform pressing force is likely to be generated such that a pressure is generated and a small pressing force is generated in a region where the deformation amount is small.

  On the other hand, the pressing mechanism of the pressing plate or the first pressing plate attached to the fixed frame of the present invention attaches the pressing plate to the pressing tool so as to be movable back and forth, and provides a biasing means between the pressing tool and the pressing plate. As a result, the pressure plate is biased in the direction away from the pressing tool, in other words, toward the side wall of the bathtub. . For this reason, even if it is a side wall of the bathtub which has a large curved surface and a large unevenness | corrugation, a press plate can be fully displaced with respect to a pressing tool so that these shapes may be adapted.

  In addition, even when deformation such as bending occurs on the side wall of the bathtub, the pressing plate can continue to generate a constant pressing force following the deformation, so the locking force of the bathtub handrail Is not reduced.

  The pressure plate itself is usually made of a relatively hard material and is not flexible like rubber, so if the side wall of the bathtub has small curves or small irregularities, all these It cannot be deformed to fit the shape. However, the improvement in adaptability to such small curved surfaces and small irregularities can be dealt with by applying a relatively thin elastic rubber to the pressing surface.

  Further, the pressing plate can be attached to the fixed frame via the first connecting means for the purpose of allowing the pressing plate to swing so as to conform to the shape of the side wall by contacting the side wall of the bathtub. In this case, since the distribution of the gap between the pressing tool and the bathtub side wall, in other words, the distribution of the gap of the pressing plate with respect to the pressing tool is further averaged so that the pressing tool and the pressing plate are arranged substantially in parallel. The pressing plate is transmitted with a more even biasing force toward the side wall of the bathtub by the biasing means provided between the pressing tool and the pressing plate, and can be pressed against the side wall of the bathtub with a substantially equal pressure. .

  Further, the pressing mechanism of the pressing plate of the present invention applies a thick elastic rubber to the surface of the pressing plate because the pressing plate is displaced in the pressing direction with respect to the pressing tool, but not in the direction along the side wall of the bathtub. It is possible to effectively prevent positional deviation along the side wall of the bathtub while generating a uniform pressing force against the side wall of the bathtub. In addition, by applying a relatively thin elastic rubber that can ignore the amount of displacement in the direction along the side wall of the bathtub to the surface of the pressing plate, displacement of the pressing plate due to slipping can be effectively prevented. be able to. In addition, there is no restriction | limiting in particular in the fixing method of an elastic rubber, You may integrally_mold with the press plate like patent document 1.

  Thus, the handrail for bathtubs of the present invention generates a uniform pressing force over the entire pressing plate even if it has a weak tightening force if the pressing plate is set so as to contact the side wall of the bathtub. For example, for a system bus having a complicated shape and having a side wall that does not have sufficient strength against side pressure, without forcibly deforming the side wall and It can be firmly fixed without causing displacement or detachment due to sliding.

  In the present invention, the urging means provided between the pressing tool and the pressing plate includes an elastic body, an elastic body holding means provided on the pressing tool or the pressing plate to hold the elastic body, and a pressing tool. Restriction means for restricting the separation from the pressing plate is included.

  The elastic body can be used without particular limitation as long as it generates a pressing force by compression, such as a coiled spring, an elastic block made of synthetic resin or natural rubber, or a pair of repulsive magnets. Can be used.

  Further, it is preferable that at least four elastic bodies are arranged at predetermined intervals in the radial direction from the center of the pressing plate, and each hexagonal apex is formed in the radial direction from the center of the pressing plate. It is more preferable that six are arranged in each other.

  This is because if the elastic body is arranged so as to form polygonal vertices in the radial direction from the center of the pressing plate, the pressing plate can be pressed substantially uniformly with respect to the relative displacement with respect to the pressing tool at any position on the pressing surface. Pressure can be generated, and it becomes easy to be displaced so as to incline in each direction orthogonal to each side of the formed polygon. However, if the number of arranged elastic bodies is too small, such as 1 to 3, the pressing plate cannot generate an equal pressing force relative to the relative displacement with respect to the pressing tool at an arbitrary position on the pressing surface. And the displacement direction of the pressing plate is also biased in the direction perpendicular to the three sides of the triangle and in the direction perpendicular to the straight line connecting the two points, and easily displaced in the direction necessary to fit the shape of the side wall of the bathtub. It is because it becomes impossible.

  However, the larger the number of elastic bodies arranged in this case, the better. The larger the number of elastic bodies, the easier it is for the pressing plate to generate a uniform pressing force at an arbitrary position. However, if the number of elastic bodies is too large, the pressing force becomes too large as a whole or locally. This tends to cause a problem that requires a large space for mounting the elastic body.

  Therefore, the number of elastic bodies arranged so as to form polygonal vertices in the radial direction from the center of the pressing plate is determined depending on the direction in which the pressing plate is easily displaced and the desired pressing plate as a whole or It must be determined in consideration of the balance with the local pressing force.

  In addition, the elastic body passes through the center of the pressing plate if importance is attached to the conformity, familiarity, and strong pressing contact with the side wall of the bathtub of the pressing plate rather than the generation of the uniform pressing force by the pressing plate. The shaft or the pressing tool may be arranged coaxially with a connecting shaft that connects the fixed frame, the movable frame, the auxiliary plate, or the like. For example, one spring can be arranged coaxially with the central axis of the threaded rod of the first connecting means described later.

  In such an arrangement, it is somewhat difficult to generate an equal pressing force at an arbitrary position of the pressing plate as compared with the case where the elastic body is arranged in the radial direction from the center of the pressing plate. Since it can be displaced very easily with respect to all directions of 360 degrees with the elastic body as the center, the pressing plate can be in close contact with the pressing tool so that the side wall of the bathtub is tilted in any direction. It can be displaced very easily. As a result, the frictional force is increased by improving the adhesion between the pressing plate and the bathtub side wall, and the fixing of the handrail for the bathtub by the first and second pressing plates is strengthened.

  An elastic body such as a spring may be fixed to both the pressing tool and the pressing plate by an elastic body holding means to be described later, but is not necessarily fixed to both, and is fixed to either one. Just do it.

  The elastic body holding means is, for example, a rod-like projection that holds a coiled spring or elastic block so as to pierce from the inside, or a box or cylinder that holds the spring or elastic block so as to surround it from the outside. It may be a protrusion. The elastic body holding means is not particularly limited as long as these elastic bodies can be stably held by the pressing tool or the pressing plate. For example, an elastic body such as an adhesive or a staple is used. It may be fixed directly to the pressing tool or the pressing plate.

  Since the pressing plate is attached to the pressing tool so as to be movable back and forth, and is always biased in a direction away from the pressing tool, the pressing plate is separated from the pressing tool by a certain distance or more. A restricting means for restricting so as not to drop off is provided.

  The restricting means includes, for example, a through hole provided in the pressing tool, a body portion slidably disposed in the through hole, and a head having a diameter larger than the through hole, and is fixed to the pressing plate. It is made up of pins that are made. In the case of this type of restricting means, the pressing plate can move back and forth relative to the pressing tool in the body of the pin. The restricting means is, for example, provided with a hook on one of the pressing plate and the pressing tool, and provided with a locking portion for hooking the hook on the other, for example, connecting the pressing plate and the pressing tool with a predetermined length. It may be a thread or a flexible wire.

  As described above, the restricting means used in the biasing means of the present invention allows the relative movement of the pressing plate and the pressing tool up to a predetermined distance, but does not allow the separation beyond the predetermined distance. There is no particular limitation as long as it has a structure and a function.

  In order to improve compatibility with the side wall of the bathtub, the pressing plate is not necessarily one, and may be composed of at least two or more separate divided pressing plates. When the pressing plate is composed of two or more separate divided pressing plates, the divided pressing plate can be divided into a set with the pressing tool, or only the pressing plate is divided into two or more for one pressing tool. You can also However, in the former case, since two or more divided pressing tools must be connected to the first connecting means, it is necessary to use an auxiliary plate that further connects these pressing tools.

  In the present invention, the first connecting means disposed for attaching the pressing tool and the pressing plate to the fixed frame so as to be capable of moving forward and backward includes a female screw hole provided in a vertical portion of the fixed frame, and a female screw hole. A threaded rod threaded with a male thread, one end of which is connected to the pressing tool, and the other end is a handle knob that rotates and retracts the threaded rod by rotating it. And a threaded rod connected to the

  This type of connecting means can be screwed back and forth with a fine feed by operating the handle knob, so it is attached between the pressing tool and the pressing plate after contacting the pressing plate with the side wall of the bathtub. The amount of deformation (the amount of displacement in the case of a pair of magnets) can be finely adjusted. Therefore, it is possible to easily generate an appropriate pressing force that does not damage the side wall while reliably locking the pressing plate to the side wall of the bathtub. In addition, since the mechanism for screwing back and forth by the combination of the female screw and the male screw can give a large deformation amount to the elastic body with a small rotational force of the handle knob, the pressing plate is moved along the sidewall of the bathtub while deforming the elastic body. It is suitable for pushing to the end, and it is advantageous because the pressing tool is not pushed back by the reaction force of the elastic body.

  The pressing mechanism of the pressing plate (first pressing plate) attached to the fixed frame side described above can be applied as it is as the pressing mechanism of the pressing plate (second pressing plate) attached to the movable frame side.

  That is, as a modified example of the handrail for bathtub described above, the second pressing tool attached to the movable frame through the second connecting means includes a horizontal part and a vertical part attached to the side wall of the bathtub. A substantially L-shaped fixed frame, a substantially L-shaped movable frame having a horizontal portion and a vertical portion slidably attached to a horizontal portion of the fixed frame, and a movable frame via a second connecting means. The second pressing tool attached, the second pressing plate attached to the second pressing tool so as to be movable back and forth, and disposed so as to face the second pressing plate, and attached to the fixed frame And a biasing means for biasing the second pressing plate in the direction of separating the second pressing plate from the second pressing tool is provided between the second pressing tool and the second pressing plate. A handrail for bathtubs There is provided. In this modification, the first pressing plate may be attached to the fixed frame via the first connecting means for the purpose of allowing the first pressing plate to swing with respect to the side wall of the bathtub.

  Therefore, the biasing means applied to the pressing mechanism of the second pressing plate includes an elastic body and an elastic body holding means provided on the second pressing tool or the second pressing plate to hold the elastic body. And a regulating means for regulating the separation between the second pressing tool and the second pressing plate.

  The elastic body can be used without particular limitation as long as it generates a pressing force by compression, such as a coiled spring, an elastic block made of synthetic resin or natural rubber, or a pair of repulsive magnets. Can be used.

  Further, it is preferable that at least four elastic bodies are arranged radially from the center of the second pressing plate along the pressing surface and spaced apart from each other by a predetermined distance from the center of the second pressing plate. It is more preferable to arrange six hexagonal apexes in the radial direction along the pressing surface.

  The elastic body holding means is, for example, a rod-like projection that holds a coiled spring or elastic block so as to pierce from the inside, or a box or cylinder that holds the spring or elastic block so as to surround it from the outside. It may be a protrusion. The elastic body holding means is not particularly limited as long as these elastic bodies can be stably held by the second pressing tool or the second pressing plate. For example, an adhesive, a staple, etc. As described above, the elastic body may be directly fixed to the second pressing tool or the second pressing plate.

  The restricting means includes, for example, a through hole provided in the second pressing tool, a body portion slidably disposed in the through hole, and a head having a diameter larger than that of the through hole. It is comprised from the pin fixed to the press board of this. In the case of this type of restricting means, the second pressing plate can move back and forth relative to the second pressing tool in the body of the pin. In addition, the restricting means includes, for example, a hook provided on one of the second pressing plate and the second pressing tool and a locking portion for hooking the hook on the other, for example, a second pressing plate, It may be a thread or a flexible wire that connects the second pressing tool with a predetermined length.

  Further, the second pressing plate can be attached to the movable frame via the second connecting means for the purpose of allowing the second pressing plate to swing so as to conform to the shape of the side wall by contacting with the side wall of the bathtub. In this case, the distribution of the gap between the second pressing tool and the side wall of the bathtub, in other words, the distribution of the gap of the second pressing plate with respect to the second pressing tool is also determined by the second pressing tool and the second pressing plate. Since it is further averaged so as to be arranged substantially in parallel, the second pressing plate is further moved toward the side wall of the bathtub by the urging means provided between the second pressing tool and the second pressing plate. An even biasing force is transmitted and can be pressed against the side wall of the bathtub with substantially equal pressure.

  Moreover, in order to improve the compatibility with the side wall of a bathtub, the 2nd press plate does not necessarily need to be one, and may comprise at least 2 or more separate divided press plates. When the second pressing plate is composed of two or more separate divided pressing plates, the divided pressing plate can be divided into a set with the second pressing tool, or the pressing plate for one pressing tool. Can be divided into two or more. However, in the former case, since it is necessary to attach two or more divided second pressing tools to the movable frame via the movable frame or the second connecting means, an auxiliary for further connecting these pressing tools together. It may be necessary to use a plate.

  As described above, the pressing mechanism of the pressing plate (first pressing plate) attached to the fixed frame side is that of the pressing plate (second pressing plate) disposed at a position opposite to the side wall of the bathtub. It can be used as it is as a pressing mechanism. For this reason, the handrail for bathtubs of this invention may be equipped with the press mechanism which either one of the 1st press board and the 2nd press board, or both mentioned above.

  The first pressing plate is provided with a first connecting means capable of finely adjusting its feed, so when the pressing mechanism is applied to the first pressing plate side, the movable frame is slid with respect to the fixed frame. After the side wall of the bathtub is lightly sandwiched between the first pressing plate and the second pressing plate, the first pressing plate extends along the side wall of the bathtub while the elastic body of the urging means is deformed by the first connecting means. Can be easily pushed to the end. On the other hand, when the pressing mechanism is applied to the second pressing plate side, after the first pressing plate is brought into contact with the side wall of the bathtub, the movable frame is fixed to the fixed frame until the elastic body of the urging means is deformed. Since the second pressing plate can be brought into contact with the side wall of the bathtub by sliding, there is an advantage that the temporary setting of the handrail for the bathtub becomes extremely easy.

  According to the present invention, even in a bathtub having a complicated shape such as a system bath and having a side wall that does not have sufficient strength against the pressure from the side, without forcibly deforming the side wall, And the press mechanism of the press plate of the handrail for bathtubs which can be fixed to the said side wall firmly, without producing the position shift and detachment | desorption by sliding is provided.

It is a general view of the handrail for bathtubs of this invention. It is sectional drawing of the handrail for bathtubs of this invention. It is the perspective view which looked at the press board and the press tool from back. It is an exploded view which shows the press structure of a press plate. It is sectional drawing of the press plate and press tool explaining the press mechanism of a press plate.

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

  The main structure of the handrail for bathtubs of this invention is demonstrated using FIG.1 and FIG.2. FIG. 1 shows the entirety of a handrail 1 for a bathtub according to an embodiment of the present invention, and FIG. 2 shows a cross section of the handrail 1 for a bathtub shown in FIG.

  As will be understood with reference to FIG. 2, the handrail main body for bathtub includes a substantially L-shaped fixed frame 2 provided with a horizontal portion 20 and a vertical portion 21 attached to the side wall of the bathtub, and a horizontal position of the fixed frame 2. It is composed of a substantially L-shaped movable frame 3 having a horizontal portion 30 and a vertical portion 31 slidably attached to the portion 20. In this embodiment, an upper grip 22 for supporting a human body is attached to the fixed frame 2 so as to be movable up and down, and a side grip 32 is attached to the movable frame 3.

  The first pressing plate 4 for sandwiching the side wall of the bathtub from the washing area side is attached to the first pressing tool 5 so as to be movable back and forth, and the first pressing tool 5 connects the first connecting means 6 to the first pressing means 5. And is attached to the vertical portion 21 of the fixed frame 2 so as to be capable of moving forward and backward. In addition, a flexible pressing rubber 40 for reinforcing the anti-slip is detachably attached to the pressing surface of the first pressing plate 4 by a male-female structure (see FIG. 4).

  The first connecting means 6 includes a female screw hole 60 provided in the vertical portion 21 of the fixed frame 2, and a threaded rod 61 in which a male screw screwed into the female screw hole 60 is cut. The threaded rod 61 is provided with a handle knob 62 that rotates the screw rod 61 by rotating it at one end, and the other end is connected to the first pressing tool 5. Further, the first pressing tool 5 can be swingable with respect to the threaded rod 61 by adjusting the tightening amount of the screw that is screwed to the end of the threaded rod 61.

  On the other hand, the second pressing plate 7 which is disposed so as to face the first pressing plate 4 and sandwiches the side wall of the bathtub from the bathtub side is separated into two in order to improve the compatibility with the side wall of the bathtub. The divided pressing plates 7a and 7b are attached to the vertical portion 31 of the movable frame 3 via the auxiliary plate 80 and the second connecting means 8 for connecting the divided pressing plates 7a and 7b (see FIG. 1). It has been. In addition, the 2nd press plate 7 can also be comprised from one press plate similarly to the 1st press plate 4, In that case, the auxiliary | assistant plate which connects 2nd press plate 7a, 7b divided | segmented 80 can be omitted. Moreover, the flexible pressing rubber 70 for strengthening anti-slip | slipping is attached to each pressing surface of the division | segmentation press plates 7a and 7b by the male-female structure so that attachment or detachment is possible.

  Furthermore, each of the divided pressing plates 7a and 7b can be swung with respect to the auxiliary plate 80 by adjusting the tightening amount of the screw connected to the auxiliary plate 80. The auxiliary plate 80 is also movable. By adjusting the tightening amount of the screw connected to the vertical portion 31 of the frame 3, it is possible to swing the vertical portion 31.

  The pressing structure of the first pressing plate 4 in the handrail 1 for a bathtub according to the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 shows an assembled state of the first pressing plate 4 and the first pressing tool 5 as viewed from behind, and FIG. 4 shows the pressing structure of the first pressing plate 4 shown in FIG. 3 in an exploded state. This is shown schematically.

  As shown in FIG. 4, the pressing structure of the present invention includes a first pressing plate 4, a first pressing tool 5 and a biasing means 9, and the first pressing tool 5 is a first connecting means. Is attached to. Further, the biasing means 9 is a spring 90 for biasing the first pressing plate 4 so as to be separated from the first pressing tool 5, and for fixing the spring to the back surface of the first pressing plate 4. The elastic body holding means 91 and the first pressing plate 4 are constituted by a regulating means 92 for preventing the first pressing plate 4 from being separated from the first pressing tool 5, and the regulating means is a first pressing plate. 4 and a through hole 94 provided in the first pressing tool 5 for allowing the pin to slide through.

  The first pressing plate 4 has a box-shaped rectangular shape with a shallow bottom, and includes a rubber 40 on the pressing surface, adapted to small irregularities on the side wall of the bathtub, a local curved surface, etc. By increasing the frictional force, slipping with the side wall can be effectively prevented.

  On the back surface of the first pressing plate 4, an elastic body holding means 91 for fixing the spring 90 has hexagonal vertices at substantially equal intervals in the radial direction from the center of the first pressing plate 4. Six are arranged to form. The elastic body holding means 91 is a cylindrical projection having an outer diameter slightly smaller than the inner diameter of the spring 90 and is integrally formed with the first pressing plate 4. Accordingly, six springs 90 held by the elastic body holding means 91 are also arranged so as to form a substantially regular hexagonal apex in the radial direction from the center of the first pressing plate 4.

  The first pressing plate 4 is attached to the first pressing tool 5 after a spring 90 is attached to the back surface thereof. The first pressing tool 5 has a box-like, generally square shape with a shallow bottom, and the first pressing plate 4 is supported on one side of the first pressing plate 4 in a wide range through the spring 90 in a balanced manner. The length is designed to be slightly shorter than the length of the short side of the first pressing plate 4. Further, the center of the first pressing tool 5 is screwed to the end portion of the threaded bar 61 of the connecting means 6 in order to be attached to the fixed frame 2 so as to be able to advance and retract (see FIG. 2). Therefore, the first pressing tool 5 can be swingable with respect to the threaded rod 61 by adjusting the tightening amount of the screw that is screwed to the threaded rod 61.

  The first pressing tool 5 is provided with four through holes 94 so as to form a substantially square apex in the radial direction from the center thereof. The first pressing tool 5 and the first pressing plate 4 are connected by passing a pin 93 having a body having a diameter smaller than the through hole and a head having a larger diameter through the through hole 94, and connecting the pin to the first pressing plate 5. This is achieved by fixing to the back surface of one pressing plate 4.

  In other words, the body of the pin 93 has a predetermined length that allows the first pressing tool 5 to slide through the through-hole 94, but the first pressing tool 5 exceeds the head of the pin 93. Thus, the first pressing plate 4 cannot be separated. For this reason, the first pressing plate 4 in a relative connection relationship can move back and forth with respect to the first pressing tool 5 only within a predetermined length in the body portion of the pin 93.

  Next, the pressing mechanism of the first pressing plate 4 in the handrail for bathtubs according to the present invention will be described with reference to FIGS. FIG. 5A shows a cross section when the first pressing plate 4 is not in contact with the side wall of the bathtub, and FIG. 5B shows that the first pressing plate 4 is in contact with the side wall of the bathtub. A cross-section at a certain time is shown.

  Before setting the handrail 1 for bathtubs on the side wall of the bathtub, when the first pressing plate 4 is in a non-contact state with the side wall of the bathtub, the first pressing plate 4 is the first pressing tool 5. Is always urged in a direction away from the first pressing tool 5 by a spring 90 fixed between them, and stops at a position farthest from the first pressing tool 5 within a range allowed by the pin 93. (FIG. 5A).

  When the bathtub handrail 1 is to be fixed to the side wall of the bathtub, the first pressing plate 4 is set so as to be in light contact with the side wall 10 on the washing area side, and then the movable frame 3 is slid with respect to the fixed frame 2. Then, the divided pressing plates 7a and 7b are pushed into contact with the side wall on the bathtub side. Then, the first pressing plate 4 is gradually screwed by rotating the handle knob 62 of the connecting means 6, and the first pressing plate 4 and the second pressing plates 7a and 7b receiving the reaction force are moved. The handrail 1 for bathtubs is fixed by making it closely_contact | adhere to the side wall of a bathtub (FIG.5 (b)).

  At this time, the first pressing plate 4 receives a reaction force from the side wall 10 of the bathtub and is close to the first pressing tool 5 while compressing the spring 90 mounted therein, so that the side wall 10 of the bathtub On the other hand, a constant pressing force is always generated, and the locking force of the bathtub handrail is not reduced.

  In addition, since six springs 90 are arranged so as to form a substantially regular hexagonal apex in the radial direction from the center of the first pressing plate 4, the first pressing plate 4 is moderate to the side wall 10 of the bathtub. While generating the pressing force, the hexagon can be displaced so as to easily incline in all directions orthogonal to the sides of the hexagon. For this reason, even if the 1st press plate 4 is a side wall of the bathtub which has a large curved surface and a large unevenness | corrugation, it can fully displace with respect to the 1st press tool 5 so that these shapes may be adapted.

  Further, since the first pressing tool 5 can be attached to the first connecting means 6 so as to be able to swing, in this case, the distribution of the gap with the bathtub side wall 10, that is, the first pressing tool 5 with respect to the first pressing tool 5. The distribution of the displacement of the pressing plate 4 can be further averaged, and the first pressing plate 4 can be pressed against the side wall of the bathtub by the spring 90 with substantially equal pressure.

  Thus, if the handrail 1 for bathtubs of this invention is set so that the 1st press plate 4 may contact with the side wall of a bathtub, even if it is a weak clamping force, it will cover the 1st press plate 4 whole. Since a uniform pressing force can be generated, the side wall can be provided even for a system bus having a complicated shape and a side wall that does not have sufficient strength against side pressing. It can be firmly fixed without being deformed and without causing displacement or detachment due to sliding.

  Moreover, although not shown in figure, the press mechanism of the 1st press plate 4 mentioned above can be applied as it is as a press mechanism of the 2nd press plate 7 arrange | positioned in the position facing this. That is, the pressing mechanism of the second pressing plate 7 attaches the second pressing plate to the second connecting means via the second pressing tool that is mounted so as to be movable back and forth, and the second pressing tool. And an urging means for urging the second pressing plate 7 in a direction to separate the second pressing plate 7 from the second pressing tool.

1 ...... Handrail for bathtub 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Fixed frame 3 ・ ・ ・ ・ ・ ・ ・ ・ Movable frame 4 ············ First pressure plate 40 ··················································· Pressing tool 6 ··············· First connection means 61 ········································· Handle knob 7 ... 2nd pressing plate 8 ... 2nd connection means 9 ...・ ・ Biasing means 90 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Spring 10 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Bathtub side wall

Claims (10)

A substantially L-shaped fixed frame having a horizontal part and a vertical part attached to the side wall of the bathtub;
A substantially L-shaped movable frame having a horizontal portion and a vertical portion, slidably attached to the horizontal portion of the fixed frame;
A pressing tool attached to the fixed frame and / or the movable frame; and a pressing plate attached to the pressing tool so as to be movable back and forth. Further, the pressing plate is pressed between the pressing tool and the pressing plate. A biasing means for biasing in a direction away from the tool is provided ;
The biasing means regulates the elastic body, the elastic body holding means provided on the pressing tool or the pressing plate to hold the elastic body, and the separation between the pressing tool and the pressing plate. The handrail for bathtubs characterized by including the control means of . A substantially L-shaped fixed frame having a horizontal part and a vertical part attached to the side wall of the bathtub;
A first pressing tool attached to the fixed frame so as to be capable of moving forward and backward via a first connecting means;
A first pressing plate attached to the first pressing tool so as to be movable back and forth;
A substantially L-shaped movable frame having a horizontal portion and a vertical portion, which is slidably attached to a horizontal portion of the fixed frame, and is disposed so as to face the first pressing plate, and the movable frame A second pressing plate attached to the first pressing member, and further biasing the first pressing plate in a direction to separate the first pressing plate from the first pressing member between the first pressing member and the first pressing plate. Biasing means are provided ,
The biasing means regulates the elastic body, the elastic body holding means provided on the pressing tool or the pressing plate to hold the elastic body, and the separation between the pressing tool and the pressing plate. The handrail for bathtubs characterized by including the control means of .   The handrail for bathtubs according to claim 2, wherein the second pressing plate is attached to the movable frame via second connecting means. A substantially L-shaped fixed frame having a horizontal part and a vertical part attached to the side wall of the bathtub;
A substantially L-shaped movable frame having a horizontal portion and a vertical portion, slidably attached to the horizontal portion of the fixed frame;
A second pressing tool attached to the movable frame via a second connecting means;
A second pressing plate attached to the second pressing tool so as to be movable back and forth; and a first pressing plate arranged to face the second pressing plate and attached to the fixed frame. And a biasing means for biasing the second pressing plate in a direction of separating the second pressing plate from the second pressing tool is provided between the second pressing tool and the second pressing plate .
The biasing means regulates the elastic body, the elastic body holding means provided on the pressing tool or the pressing plate to hold the elastic body, and the separation between the pressing tool and the pressing plate. The handrail for bathtubs characterized by including the control means of .   The handrail for bathtubs according to claim 3, wherein the first pressing plate is attached to the fixed frame via first connecting means.   6. The bathtub according to any one of claims 1 to 5, wherein the pressing plate or the first pressing plate attached to the fixed frame is composed of at least two or more divided pressing plates. handrail.   The bathtub or plate according to any one of claims 1 to 5, wherein the pressing plate or the second pressing plate attached to the movable frame is composed of at least two or more divided pressing plates. handrail. The restricting means includes a through hole provided in the pressing tool, a body portion slidably disposed in the through hole, and a head having a diameter larger than the through hole, and is fixed to the pressing plate. The handrail for bathtubs in any one of Claim 1 thru | or 7 characterized by including the pin to be performed. The handrail for bathtubs according to any one of claims 1 to 8 , wherein at least four of the elastic bodies are arranged at predetermined intervals in the radial direction from the center of the pressing plate. .   The first connecting means includes a female screw hole provided in the vertical portion and a threaded rod in which a male screw that is screwed into the female screw hole is cut. 3. A threaded bar connected to a pressing tool, the other end including a threaded bar connected to a handle knob that causes the threaded bar to rotate back and forth by rotating the threaded bar. The handrail for bathtubs as described in 5.

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