JP5698859B1 - Handrail for bathtub - Google Patents

Abstract

Provided is a handrail for a bathtub capable of safely and easily performing an attaching operation to a side wall of a bathtub and a removing operation from the side wall of the bathtub. A fixed frame 110 and a movable frame 120 are disposed on a side wall of a bathtub. The circular hole is formed on the back surface of the movable frame 120. The slide locking / releasing means 140 includes a cylinder including a convex part, an operation part 143 disposed on the surface 123 side of the movable frame 120, a connection part that connects the cylinder and the operation part 143, and the cylinder into a circular hole. And a spring biased to be engaged. When the operation unit 143 is pushed against the biasing force of the spring, the cylinder is separated from the circular hole. A cylinder spaced from the circular hole is accommodated in the chamber. The slide locking / releasing means 140 is attached to the fixed frame 110. The contact surface between the circular hole and the cylinder includes a vertical surface. [Selection] Figure 2

Description

  The present invention generally relates to a handrail for a bathtub, and more particularly to a handrail for a bathtub that is detachably attached to the bathtub.

  Conventionally, there is a handrail for a bathtub that is detachably attached to the side wall of the bathtub. For example, JP 2010-246691 A (Patent Document 1) describes a handrail for a bathtub that is used by being attached to the upper end portion of the side wall of the bathtub. When using this handrail for bathtubs, first, place the main body tool over the upper end of the side wall so that the side piece is located outside the bathtub, and the pressing plate of the pressing tool on the outer surface of the bathtub on the side wall, The pressure receiving plate of the pressure receiving member is opposed to the surface of the side wall in the bathtub. Then, by sliding the slide pieces of the pair of press receivers to the back of the insertion holes of the main body tool, the press receiver plates of each press receiver are moved, and the slip stoppers of the press receiver plates are prevented from slipping on the surface of the side wall bathtub. The outer surface on which the sheet is pasted is brought into contact.

  In the handrail for bathtubs of Patent Document 1, an engagement groove is provided in the slide piece of the press receiver, and a latch claw is provided in the main body. The latch claw is biased toward the slide piece and is engaged with the engagement groove. A slide inclined surface is formed on the latch claw, and an inclined surface is formed on the engagement groove. The slide inclined surface of the latch claw and the inclined surface of the engaging groove face each other in the direction in which the slide piece is slid to the back of the insertion hole. By applying a force for pushing the slide piece into the insertion hole, the slide inclined surface of the latch claw is pushed by the inclined surface of the engagement groove, and the latch claw comes out of the engagement groove. For this reason, a pressure receptacle can be slid without big resistance by applying force in the direction which pushes a slide piece into the back of an insertion hole.

  Japanese Patent Laying-Open No. 2013-52207 (Patent Document 2) describes a handrail for a bathtub provided with a width adjusting means. In this bathtub handrail, an L-shaped slide body is inserted into an L-shaped main body, and is fitted and slid. A lid having a lock pin on the back surface is provided on the upper portion of the main body. The lock pin is engaged and locked with the engagement hole of the slide body simply by pushing the slide body, and the lock pin is detached from the engagement hole and unlocked by opening the lid.

  The lock pin is biased by a spring, and an inclination is formed at the tip of the lock pin. When the slide body is inserted into the fitting portion of the main body and pushed in, the tip of the slide piece comes into contact with the inclined surface of the lock pin, the lock pin is pushed upward against the spring bias, and the slide body moves forward.

  International Publication No. WO 2013/114610 (Patent Document 3) describes a handrail for a bathtub in which a fixed frame and a movable frame are engaged with band teeth. The band tooth has an inclined surface that allows the movable frame to advance, and when the movable frame is slid so as to approach the bathtub wall surface, the inclined surface of the band tooth of the movable frame slides on the inclined surface of the band tooth of the fixed frame. Therefore, when the user slides the movable frame closer to the bathtub wall surface, the user only needs to move the movable frame by grasping the grip, and there is no need for another operation such as releasing the stop of the slide.

JP 2010-246691 A JP 2013-52207 A International Publication No. WO 2013/114610

  However, in the handrail for bathtubs described in Patent Document 1, if it is repeatedly used, there is a possibility that the engaging groove or the latching tool of the slide piece will be worn and scraped. Further, even in the bathtub handrail of Patent Document 2, there is a possibility that the engagement hole or the lock pin of the slide piece may be worn and scraped during repeated use. Similarly, in the handrail for bathtubs of Patent Document 3, the concave and convex portions of the movable frame and the fixed frame may be worn and scraped by repeated use.

  Furthermore, in any of the handrails for bathtubs of Patent Documents 1 to 3, since the inclined surface is formed at the tip of the lock pin or the like, the movable frame may be erroneously inserted to the back.

  Therefore, an object of the present invention is to easily fix the thickness according to the thickness of the side wall of the bathtub, and to perform the attaching operation to the side wall of the bathtub and the removing operation from the side wall of the bathtub safely and easily. It is to provide a possible bathtub handrail.

  A handrail for a bathtub according to the present invention includes a fixed frame disposed on a side wall of the bathtub, a movable frame slidably attached to the fixed frame, and disposed on a side wall of the bathtub opposite to the fixed frame, and a first frame An engagement portion, slide locking / releasing means, and a chamber are provided.

  The first engaging portion includes a concave portion or a convex portion, and is formed on the back surface of the movable frame.

  The slide locking / releasing means includes a second engaging part, an operating part, a connecting part, and an urging means. The second engaging portion includes a convex portion or a concave portion and is disposed at a position facing the first engaging portion. The operation unit is arranged on the surface side of the movable frame and is operated by the user. The connecting portion connects the second engaging portion and the operation portion. The urging means urges the second engagement portion to engage the first engagement portion. The slide locking / releasing means is configured such that the second engaging part is separated from the first engaging part when the operating part is pushed toward the movable frame against the biasing by the biasing means. Has been.

  The chamber accommodates the second engaging portion at least when the operating portion is pushed against the biasing means.

  The contact surface between the first engagement portion and the second engagement portion is a surface that is orthogonal to the back surface of the movable frame and includes a surface that is not parallel to the sliding direction of the movable frame.

  Hereinafter, the back surface of the movable frame is a surface that is not exposed to the outside when the movable frame and the fixed frame are assembled and is not generally contacted by the user, that is, the boundary surface of the above-described chamber of the movable frame. The surface to be The surface of the movable frame refers to a surface formed at a position opposite to the back surface of the movable frame in the thickness direction of the movable frame. Further, the movement of the movable frame in the direction approaching the bathtub wall surface is referred to as advancement of the movable frame, and the movement of the movable frame in the direction away from the bathtub wall surface is referred to as retraction of the movable frame.

  As described above, the first engagement portion including the concave portion or the convex portion is formed on the back surface of the movable frame. The first engaging portion faces the second engaging portion of the slide locking / releasing means attached to the fixed frame. A convex portion or a concave portion is formed in the second engaging portion.

  The second engaging portion is biased by the biasing means so as to be engaged with the first engaging portion. When the user operates the operating portion and pushes the slide locking / releasing means against the urging by the urging means, the second engaging portion is separated from the first engaging portion. The second engaging portion separated from the first engaging portion is accommodated in the room.

  The second engaging portion of the slide locking / releasing means is disposed between the back surface of the movable frame and the fixed frame. Since the second engagement portion is connected to the operation portion arranged on the front surface side of the movable frame by the connection portion, the user operates the operation portion from the front surface side of the movable frame, and the rear surface side of the movable frame The second engaging portion can be separated from the first engaging portion. In this way, the user can be prevented from touching the first engagement portion or the second engagement portion formed on the back surface of the movable frame.

  Further, the contact surface between the first engaging portion and the second engaging portion is a surface that is orthogonal to the back surface of the movable frame and includes a surface that is not parallel to the sliding direction of the movable frame. The operator operates the operating portion to push the slide locking / releasing means against the urging by the urging means, and does not separate the second engaging portion on the back side of the movable frame from the first engaging portion. As long as the first engaging portion and the second engaging portion are in contact with each other in a plane that is not parallel to the sliding direction of the movable frame, the movable frame is prevented from sliding. In this way, it is possible to prevent the movable frame from being accidentally slid.

  The user can move the movable frame by pushing the slide lock / release means against the urging force of the urging means by operating the operating part when moving the movable frame closer to the wall surface of the bathtub or away from the wall surface of the bathtub. The frame can be slid. Thus, since the movable frame can be slid in any direction by the same operation, the operation is easy.

  The handrail for a bathtub according to the present invention includes a surface that contacts the second engaging portion at the concave portion or convex portion of the first engaging portion, and the first portion at the convex portion or concave portion of the second engaging portion. The surface in contact with the engaging portion preferably has a cylindrical peripheral surface shape.

  In the handrail for bathtubs according to the present invention, the second engaging portion includes a cylindrical convex portion, and the first engaging portion is a side periphery of a cylinder that receives the convex portion of the second engaging portion. It is preferable to include a planar recess.

  In the handrail for bathtubs according to this invention, it is preferable that the recessed part of a 1st engaging part has a bottom.

  In the handrail for bathtubs according to this invention, it is preferable that the convex part of a 2nd engaging part has a flange.

  In the handrail for a bathtub according to the present invention, the movable frame includes a slit that penetrates the front and back surfaces and extends in the sliding direction, and the coupling portion passes through the slit to connect the second engagement portion and the operation portion. It is preferable that they are connected.

  In the handrail for bathtubs according to the present invention, the slit is preferably an opening whose peripheral edge is closed.

  In the handrail for bathtubs according to the present invention, the movable frame includes two movable side legs arranged along the sliding direction so as to sandwich the first engagement portion and / or the second engagement portion. The chamber is preferably surrounded by a surface of the movable frame where the first engaging portion is formed, a movable leg, and a surface of the fixed frame facing the first engaging portion. .

  In the handrail for bathtubs according to the present invention, the fixed frame has two fixed side legs arranged along the sliding direction so as to sandwich the first engagement portion and / or the second engagement portion. The chamber is preferably surrounded by a surface of the movable frame where the first engaging portion is formed, a fixed leg, and a surface of the fixed frame facing the first engaging portion. .

  In the handrail for bathtubs according to the present invention, the fixed frame includes two fixed side legs arranged so as to sandwich the first engaging portion and / or the second engaging portion along the sliding direction. The movable frame includes two movable side legs arranged so as to sandwich the first engagement portion and / or the second engagement portion along the sliding direction, and the chamber includes a first frame in the movable frame. It is preferable that the engaging portion is surrounded by the surface on which the engaging portion is formed, the movable side leg portion and / or the fixed side leg portion, and the surface facing the first engaging portion in the fixed frame.

  In the handrail for bathtubs according to this invention, it is preferable that the two movable side legs are arranged so as to sandwich the two fixed side legs.

  In the handrail for bathtubs according to this invention, it is preferable that the inner surface of the two movable side legs is arranged so as to be in sliding contact with the outer surface of the two fixed side legs.

  In the handrail for bathtubs according to the present invention, the fixed frame includes fixed side legs arranged along the sliding direction so as to sandwich the first engaging part and / or the second engaging part, The fixed leg has an opening at a position facing the first engaging portion, and the chamber has a surface on which the first engaging portion is formed in the movable frame, an inner wall surface of the opening, It is preferable that the fixed frame is surrounded by a surface facing the first engaging portion.

  In the handrail for a bathtub according to the present invention, the movable frame includes two movable side legs arranged so as to sandwich the fixed side leg along the sliding direction, and the chamber is the first in the movable frame. It is preferable that the engaging portion is surrounded by the surface, the movable leg portion and / or the fixed leg portion, and the surface of the fixed frame that faces the first engaging portion.

  In the handrail for bathtubs according to this invention, it is preferable that the inner surface of the two movable side legs is disposed so as to be in sliding contact with the outer surface of the one fixed side leg.

  In the handrail for bathtubs according to this invention, it is preferable that a fixed side leg part is a reinforcement rib extended in the direction parallel to the sliding direction of a movable frame.

  According to this invention, it is easy to fix according to the thickness of the side wall of the bathtub, and it is possible to safely and easily perform the attaching operation to the side wall of the bathtub and the removing operation from the side wall of the bathtub. A handrail for a bathtub can be provided.

It is a perspective view which shows the whole handrail for bathtubs of 1st Embodiment. It is a perspective view which shows the whole fixed frame, movable frame, and slide latching / release means when the main body cover of the handrail for bathtubs of 1st Embodiment is removed. It is a disassembled perspective view which shows the structural member of the stationary frame shown in FIG. It is a perspective view which shows the back surface of a movable frame. It is a figure which shows the cross section of the whole handrail for bathtubs of 1st Embodiment. It is a figure which expands and shows the cross section of the periphery of the slide latching / release means of the handrail for bathtubs of 1st Embodiment. It is sectional drawing which looked at the handrail for bathtubs of 1st Embodiment from the direction of the VII-VII line shown in FIG. FIG. 7 is a diagram showing a state when the locking is released in the slide locking / release member shown in FIG. 6. FIG. 7 is a diagram showing a state when the operation unit is locked in the slide locking / release member shown in FIG. 6. It is a disassembled perspective view which shows the fixed frame of the handrail for bathtubs of 2nd Embodiment, a movable frame, and the structural member of a slide latching / release means. It is a figure which shows the cross section of the state in which the movable frame is latched by the slide latching / release member about the handrail for bathtubs of 2nd Embodiment. It is a disassembled perspective view which shows the fixed frame of the handrail for bathtubs of 3rd Embodiment, a movable frame, and the structural member of a slide latching / release means. It is a figure which shows the cross section of the state in which the movable frame is latched by the slide latching / release member about the handrail for bathtubs of 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the handrail 1 for a bathtub according to the first embodiment of the present invention mainly includes a main body 100 and an upper grip 102 supported by the main body 100. The main body 100 is covered with a cover 101. On the upper surface of the cover 101, an operation unit 143 to be described in detail later is exposed. The main body 100 includes a fixed frame 110, a movable frame 120, and slide locking / releasing means described later. A fixed pressing plate 104 and a handle knob 107 are attached to the fixed frame 110. A movable pressing plate 105 and a side grip 160 are attached to the movable frame 120. The fixed pressing plate 104 and the movable pressing plate 105 are respectively arranged so as to face the side wall of the bathtub when the bathtub handrail 1 is installed on the side wall of the bathtub. The upper grip 102 is fixed to the column 103. The upper grip 102 is supported by the main body 100 when a part of the column 103 is accommodated in the main body 100.

  As shown in FIGS. 1 to 3, the fixed frame 110 is formed in an L shape and includes a horizontal portion 111 and a vertical portion 112. With the main body 100 attached to the side wall of the bathtub, the horizontal portion 111 extends in the horizontal plane, and the vertical portion 112 extends downward from the end portion of the horizontal portion 111 and extends in the vertical plane. The frame support member 106 is attached so as to cover the outer surface of the vertical portion 112 of the fixed frame 110. The frame support member 106 is formed with a through hole for accommodating the upper grip 102. The fixed pressing plate 104 is attached so as to protrude from the inner side surface 112 a of the vertical portion 112 of the fixed frame 110. The handle knob 107 is attached to the frame support member 106. The handle knob 107 and the fixed pressing plate 104 are connected by a bolt shaft. By turning the handle knob 107, the rotational force is transmitted from the handle knob 107 to the bolt shaft, and the fixed pressing plate 104 is moved forward and backward along the direction orthogonal to the plane of the fixed pressing plate 104.

  Four reinforcing ribs 151 are formed on the upper surface of the horizontal portion 111 of the fixed frame 110. A fixing plate 152 is attached to the upper surface of the reinforcing rib 151. The reinforcing rib 151 extends along a direction orthogonal to the plane of the fixed pressing plate 104. In this embodiment, the four reinforcing ribs 151 are formed in parallel to each other. The fixing plate 152 is formed in a plate shape, and is fixed between the two reinforcing ribs 151 on the inner side of the four reinforcing ribs 151. The lower surface of the fixed plate 152 and the upper surface of the horizontal portion 111 are separated by the reinforcing rib 151. A through hole 153 that penetrates the upper surface and the lower surface of the fixed plate 152 is formed in the fixed plate 152. Between the two inner reinforcing ribs 151, a hole 111a for accommodating a cylinder 141 of a slide locking / releasing means 140 described later is formed.

  As shown in FIGS. 1 to 4, the movable frame 120 is formed in an L shape and includes a horizontal portion 121 and a vertical portion 122. With the main body 100 attached to the side wall of the bathtub, the horizontal portion 121 extends in the horizontal plane, and the vertical portion 122 extends downward from the end of the horizontal portion 121 and extends in the vertical plane. The movable pressing plate 105 is attached to the movable frame 120 so as to protrude from the inner side surface 122 a of the vertical portion 122 of the movable frame 120. The side grip 160 is attached to the movable frame 120 so as to protrude from the outer surface 122b of the vertical portion 122 of the movable frame 120. A slit 125 is formed in the horizontal portion 121 of the movable frame 120. The slit 125 is a hole that penetrates the front surface 123 and the back surface 124 of the horizontal portion 121.

  On the back surface 124 of the horizontal portion 121 of the movable frame 120, circular holes 130 are formed as a plurality of concave portions as an example of the first engaging portion. The plurality of circular holes 130 are arranged along the direction in which the movable frame extends. The inner peripheral surface of the circular hole 130 extends in the vertical direction, that is, the direction orthogonal to the sliding direction of the movable frame 120. Further, the bottom of the circular hole 130 is formed by the horizontal portion 121 of the movable frame 120, and a slit 125 is formed at the bottom. The circular hole 130 may be an uneven or polygonal hole formed directly on the horizontal portion 121 of the movable frame 120 in addition to the circular hole 130, or may be formed separately from the movable frame 120, and the horizontal portion 121. It may be attached to the back surface 124 of the. Note that the interval at which the plurality of holes are arranged is not particularly limited. In this embodiment, the circular hole 130 is formed continuously with a part of the circumference overlapping each other. Therefore, each circular hole 130 is not a perfect circle shape. The circular holes 130 may be formed separately and each may be formed in a perfect circle shape.

  Two movable leg portions 126 protrude from the back surface 124 of the horizontal portion 121 of the movable frame 120. The movable leg portion 126 is formed in a shape such that the end portion extending along the direction orthogonal to the plane of the vertical portion 122 is folded downward in the horizontal portion 121. The two movable leg portions 126 are formed with an interval therebetween, and extend along a direction orthogonal to the vertical portion 122, that is, along a direction in which the horizontal portion 121 extends.

  The fixed frame 110 and the movable frame 120 face each other with the fixed pressing plate 104 and the movable pressing plate 105 sandwiching a side wall (not shown) of the bathtub, and the horizontal portion 111 of the fixed frame 110 and the horizontal portion 121 of the movable frame 120 face each other. Are arranged as follows. The horizontal portion 121 of the movable frame 120 is inserted between the horizontal portion 111 of the fixed frame 110 and the fixed plate 152 and is slidably disposed between the two reinforcing ribs 151 of the fixed frame 110.

  The slide locking / releasing means 140 is attached on the horizontal part 111 of the fixed frame 110. The slide locking / releasing means 140 includes a cylinder 141 as a second engagement part, a rod-shaped connection part 144 connected to the cylinder 141, and an operation part 143 connected to the opposite side of the cylinder 141 in the connection part 144. And a spring 145 as a biasing member that biases the operation portion 143, and a lock member 146 inserted between the column 141 and the operation portion 143.

  The members constituting the slide locking / releasing means 140 are arranged in the following positional relationship. The cylinder 141 is disposed on the back surface 124 side of the movable frame 120, the lower end of the connecting portion 144 is connected to the cylinder 141, and the upper end of the connecting portion 144 is connected to the operation portion 143. A fixing plate 152 and a lock member 146 are inserted between the column 141 and the operation unit 143.

  The spring 145 is held in a hollow spring holder 148 installed on the horizontal portion 111 of the fixed frame 110. The spring holders 148 are disposed on both sides of the cylinder 141 with the reinforcing rib 151 interposed therebetween.

  The cylinder 141 is disposed at a position facing the circular hole 130 of the movable frame 120 between the two reinforcing ribs 151 on the horizontal portion 111. A flange 142 is formed so as to protrude vertically from the side peripheral surface of the cylinder 141. The flange 142 is formed at a position where the distance from the upper end of the cylinder 141 is substantially equal to the depth of the circular hole 130. A side peripheral surface of the cylinder 141 extends in a vertical direction, that is, a direction orthogonal to the sliding direction of the movable frame 120.

  The operation unit 143 is disposed on the surface 123 side of the horizontal part 121 of the movable frame 120. The operation unit 143 includes a central part 143a and two wing parts 143b. The two wing parts 143b extend from the central part 143a along a direction orthogonal to the direction in which the movable frame 120 extends. Each of the two wing parts 143b is urged from below to above by a spring 145.

  The lock member 146 is formed in a substantially rectangular plate shape with an outer edge, and a central opening 146a is opened at the center. The lock member 146 includes a lock portion 146b having a relatively large thickness and a lock release portion 146c having a relatively small thickness. The lock part 146b is a part protruding by a thickness D from the upper surface of the lock release part 146c.

  The connecting portion 144 connected to the column 141 passes through the slit 125 of the movable frame 120, the through hole 153 of the fixed plate 152, and the central opening 146 a of the lock member 146. The upper end of the connecting portion 144 is connected to the central portion 143 a on the lower surface of the operation portion 143.

  As shown in FIGS. 5 and 6, the horizontal portion 121 of the movable frame 120 is slidably mounted on the horizontal portion 111 of the fixed frame 110. A part of the upper surface of the movable frame 120 is covered with a fixed plate 152. The movable frame 120 is slidable along the direction in which the horizontal portion 121 extends between the fixed plate 152 and the horizontal portion 111.

  The inner peripheral side surface of the circular hole 130 of the movable frame 120 is an example of a vertical surface 130 a as a contact surface that contacts the cylinder 141, and the side peripheral surface of the cylinder 141 is a vertical surface as a contact surface that contacts the inner peripheral surface of the circular hole 130. 141a is an example. The vertical surface 130a of the circular hole 130 and the vertical surface 141a of the cylinder 141 are opposed to each other.

  As shown in FIG. 7, the movable frame 120 is disposed in a space surrounded by the reinforcing rib 151, the fixed plate 152, and the horizontal portion 111 of the fixed frame 110. A chamber 170 is formed by the back surface 124 of the movable frame 120 (including the back surface of the horizontal portion 121 and the back surface of the movable side leg portion 126) and the horizontal portion 111 of the fixed frame 110. Note that the inside and the outside of the chamber 170 may be in communication with each other. For example, a portion of the horizontal portion 111 that faces the cylinder 141 may be opened. That is, the chamber 170 may have a space on the side on which the cylinder 141 moves. In this embodiment, a space is provided between the lower surface of the cylinder 141 and the upper surface of the horizontal portion 111.

  As shown in FIGS. 6 and 7, when the operation unit 143 is not operated by the user, the spring 145 biases the operation unit 143 from the bottom to the top. At this time, the cylinder 141 coupled to the operation unit 143 via the coupling unit 144 is also biased from below to above, that is, from the bottom toward the circular hole 130 on the back surface 124 of the horizontal portion 121 of the movable frame 120. Then, the upper part of the cylinder 141 than the flange 142 is accommodated in the circular hole 130, and the cylinder 141 and the circular hole 130 are engaged with each other. In a state in which the column 141 and the circular hole 130 are engaged, the movable frame 120 is locked on the fixed frame 110 so as not to slide in a direction away from the fixed frame 110 or a direction approaching the fixed frame 110. .

  As shown in FIG. 8, when the user pushes the operation unit 143 downward against the bias of the spring 145, the cylinder 141 connected to the operation unit 143 also moves downward, The engagement with the circular hole 130 is released. The chamber 170 is formed as a space having a size large enough to accommodate the column 141 moved downward. In this embodiment, the pushing stroke of the operation portion 143, that is, the depth at which the operation portion 143 can be pushed downward is determined by the lower surface of the flange 142 when the cylinder 141 is engaged with the circular hole 130 and the horizontal portion. It is equal to the distance from the top surface of 111. The operation unit 143 may be arranged on the surface side of the movable leg 126, and the slide locking / releasing means 140 pushes the operation unit 143 along the horizontal direction so that the cylinder 141 is aligned along the horizontal direction. It may be configured to move.

  As shown in FIG. 9, by sliding the lock member 146 having a flat bottom surface so that the lock portion 146b of the lock member 146 is sandwiched between the operation portion 143 and the fixing plate 152, The user cannot push the operation unit 143 downward. By making the thickness D of the lock portion 146b equal to the pushing stroke of the operation portion 143, the operation portion 143 is not pushed when the lock portion 146b is sandwiched between the operation portion 143 and the fixed plate 152. Can be.

  The usage method of the handrail 1 for bathtubs comprised as mentioned above is demonstrated.

  When attaching the handrail 1 for the bathtub to the side wall of the bathtub, first, the fixed frame 110 and the movable frame 120 are combined, and the interval between the fixed pressing plate 104 and the movable pressing plate 105 is made wider than the thickness of the side wall of the bathtub. In the state, the main body 100 is disposed on the side wall of the bathtub. The main body 100 is arranged such that the lower surface of the horizontal portion 111 of the fixed frame 110 is in contact with the upper surface of the side wall of the bathtub, and the fixed pressing plate 104 faces the outer side wall surface of the bathtub (the outer surface of the side wall of the bathtub). . The main body 100 is disposed such that the movable pressing plate 105 faces the inner side wall surface of the bathtub (the inner side surface of the bathtub side wall).

  Next, the user holds the side grip 160 while holding the side grip 160 of the main body 100 and pressing the center portion 143a of the operation unit 143 exposed on the upper surface of the cover 101 of the main body 100 downward. The horizontal portion 121 of the movable frame 120 is slid along the direction orthogonal to the side wall surface of the bathtub on the horizontal portion 111 of the fixed frame 110. When the central portion 143 a of the operation portion 143 is pushed downward, the cylinder 141 moves in the chamber 170 in a direction away from the circular hole 130. In this way, the engagement between the circular hole 130 and the cylinder 141 is released, and the movable frame 120 is easily slid. In this way, the positions of the fixed frame 110 and the movable frame 120 are adjusted so that the fixed pressing plate 104 contacts the outer side surface of the bathtub side wall and the movable pressing plate 105 contacts the inner side surface of the bathtub side wall.

  A plurality of circular holes are formed in the circular hole 130. The width between the fixed frame 110 and the movable frame 120 can be adjusted by changing which circular hole 130 is fitted to the column 141.

  If necessary, the user can turn the handle knob 107 to finely adjust the fixed pressing plate 104 and the movable pressing plate 105 so as to completely contact the side wall of the bathtub. By doing in this way, the handrail 1 for bathtubs can be firmly fixed on the side wall of a bathtub.

  Finally, the user pushes the lock member 146 into the main body 100 so that the lock portion 146b of the lock member 146 is inserted between the operation portion 143 and the fixing plate 152. By doing in this way, it can prevent that the operation part 143 is pushed in accidentally during use of the handrail 1 for bathtubs, and the movable frame 120 slides.

  In the state where the operation unit 143 is locked, the protrusion of the column 141 and the circular hole 130 are engaged as described above. At this time, the vertical surface 130a of the circular hole 130 and the vertical surface 141a of the cylinder 141 are opposed to each other. Therefore, even if the user applies a force to the movable frame 120 so as to move the movable pressing plate 105 away from the side wall of the bathtub or close to the side wall of the bathtub, the vertical surface 130a and the vertical surface 141a are pressed against each other. Therefore, the movable frame 120 is not slid.

  When removing the bathtub handrail 1 from the bathtub, the user first pulls the lock member 146 in the direction of pulling out the main body 100. By doing so, the lock portion 146 b of the lock member 146 is pulled out from between the operation portion 143 and the fixed plate 152. Between the operation unit 143 and the fixed plate 152, a lock release unit 146c having a relatively small thickness is disposed. Next, while pushing down the central part 143 a of the operation unit 143 exposed on the upper surface of the cover 101 of the main body 100, the side grip 160 is held and the movable frame 120 is slid out of the main body 100. When the central portion 143 a of the operation portion 143 is pushed downward, the cylinder 141 moves in the chamber 170 in a direction away from the circular hole 130. In this way, the engagement between the circular hole 130 and the cylinder 141 is released, and the movable frame 120 is easily slid. When the distance between the fixed pressing plate 104 and the movable pressing plate 105 becomes wider than the thickness of the side wall of the bathtub, the bathtub handrail 1 is removed from the side wall of the bathtub.

  As described above, the bathtub handrail 1 includes the fixed frame 110, the movable frame 120, the circular hole 130, the slide locking / releasing means 140, and the chamber 170.

  The fixed frame 110 is disposed on the side wall of the bathtub. The movable frame 120 is slidably attached to the fixed frame 110 and is disposed on the side wall of the bathtub opposite to the fixed frame 110. The circular hole 130 includes a concave portion or a convex portion, and is formed on the back surface 124 of the horizontal portion 121 of the movable frame 120.

  The slide locking / releasing means 140 includes a cylinder 141, an operation part 143, a connection part 144, and a spring 145. The cylinder 141 includes a convex portion or a concave portion, and is disposed at a position facing the circular hole 130. The operation unit 143 is disposed on the surface 123 side of the movable frame 120 and is operated by the user. The connecting part 144 connects the cylinder 141 and the operation part 143. The spring 145 urges the cylinder 141 to engage with the circular hole 130. The slide locking / releasing means 140 is configured such that the cylinder 141 is separated from the circular hole 130 when the operation unit 143 is pushed toward the movable frame 120 against the biasing force of the spring 145. The slide locking / releasing means 140 is attached to the fixed frame 110.

  The chamber 170 is a space in which at least the cylinder 141 separated from the circular hole 130 is accommodated when the operation portion 143 is pushed against the spring 145. In this embodiment, the chamber 170 accommodates the engaging member 130 not only when the column 141 is separated from the circular hole 130 but also when the column 141 is engaged with the circular hole 130. .

  In the handrail for bathtubs of the first embodiment, the movable frame 120 includes two movable side legs 126 arranged so as to sandwich the column 141 along the sliding direction, and the chamber 170 is circular in the movable frame 120. It is surrounded by the surface on which the hole 130 is formed, the movable leg 126, and the surface of the fixed frame 110 that faces the circular hole 130.

  The contact surface between the circular hole 130 and the cylinder 141 includes a vertical surface 130 a and 141 a that are orthogonal to the back surface of the movable frame 120 and are not parallel to the sliding direction of the movable frame 120.

  The cylinder 141 is biased by the spring 145 so as to be engaged with the circular hole 130. When the user operates the operation unit 143 to push the slide locking / releasing means 140 against the urging force of the spring 145, the column 141 is separated from the circular hole 130. As described above, the cylinder 141 is accommodated in the chamber 170 even when it is separated from the circular hole 130.

  The cylinder 141 of the slide locking / releasing means 140 is disposed so as to engage with the circular hole 130, that is, between the back surface 124 of the movable frame 120 and the fixed frame 110. Since the column 141 is connected to the operation unit 143 disposed on the surface 123 side of the movable frame 120 by the connection unit 144, the user operates the operation unit 143 from the surface 123 side of the movable frame 120 to move the movable frame 120. The cylinder 141 on the back surface 124 side of 120 can be separated from the circular hole 130. In this way, the user can be prevented from touching the circular hole 130 or the cylinder 141.

  Further, the vertical surfaces 130 a and 141 a that are contact surfaces between the circular hole 130 and the cylinder 141 are surfaces orthogonal to the back surface of the movable frame 120 and include surfaces that are not parallel to the sliding direction of the movable frame 120. Unless the user operates the operation unit 143 to push the slide locking / releasing means 140 against the bias by the spring 145 and separate the cylinder 141 on the back surface side of the movable frame 120 from the circular hole 130, The hole 130 and the cylinder 141 come into contact with each other in a plane that is not parallel to the sliding direction of the movable frame 120, thereby preventing the movable frame 120 from sliding. In this way, it is possible to prevent the movable frame 120 from being accidentally slid.

  The user pushes the slide locking / releasing means 140 against the urging force of the spring 145 by operating the operation unit 143 when moving the movable frame 120 close to the wall surface of the bathtub or away from the wall surface of the bathtub. Thus, the movable frame 120 can be slid. In this way, the movable frame 120 can be slid in any direction by the same operation, and thus the operation is easy.

  By doing in this way, it is easy to fix according to the thickness of the side wall of the bathtub, and it is possible to safely and easily perform the attaching operation to the side wall of the bathtub and the removing operation from the side wall of the bathtub. A bathtub handrail 1 can be provided.

  Moreover, in the handrail 1 for bathtubs, the circular hole 130 is a recessed part of a cylindrical side surface shape, and the vertical surface 130a of the circular hole 130 and the vertical surface 141a of the column 141 have a cylindrical side surface shape.

  In this way, even when the cylinder 141 rotates in the circumferential direction while the movable frame 120 slides, the cylinder 141 is easily received in the circular hole 130.

  In the bathtub handrail 1, the movable frame 120 includes a slit 125 that penetrates the front surface 123 and the back surface 124 and extends in the sliding direction. The connecting portion 144 connects the cylinder 141 and the operation portion 143 through the slit 125.

  By doing in this way, it becomes easy to connect the operation part 143 arrange | positioned at the surface 123 side of the movable frame 120, and the cylinder 141 arrange | positioned at the back surface 124 side of the movable frame 120 by the connection part 144.

  In the bathtub handrail 1, the slit 125 is an opening whose peripheral edge is closed.

  In this way, when the movable frame 120 is slid, the connecting portion 144 moves relatively inside the periphery of the slit 125, and the sliding range of the movable frame 120 on the fixed frame 110 is restricted. Can do.

  In this embodiment, the circular hole 130 is formed by the circular hole 130 and the second engaging portion is formed by the column 141. For example, the circular hole 130 projects downward from the back surface of the movable frame. It may be a cylindrical convex portion, and the second engaging portion may be a concave portion having a cylindrical side peripheral surface shape that can accommodate the circular column.

(Second Embodiment)
The handrail for bathtubs of the second embodiment of the present invention has two reinforcements arranged between the slide locking / release means having a different form from the handrail for bathtubs of the first embodiment and the movable leg. And ribs. Hereinafter, it demonstrates in full detail focusing on a different point from the handrail for bathtubs of 1st Embodiment.

  As shown in FIGS. 10 and 11, four reinforcing ribs 151 and two reinforcing ribs 251 are formed on the upper surface of the horizontal portion 111 of the fixed frame 110 of the handrail for bathtubs of the second embodiment. . A fixing plate 152 is attached to the upper surface of the reinforcing rib 151. The reinforcing rib 151 extends along a direction orthogonal to the plane of the fixed pressing plate 104. In this embodiment, the four reinforcing ribs 151 are formed in parallel to each other. The fixing plate 152 is formed in a plate shape, and is fixed between the two reinforcing ribs 151 on the inner side of the four reinforcing ribs 151. The lower surface of the fixed plate 152 and the upper surface of the horizontal portion 111 are separated by the reinforcing rib 151. A through hole 153 that penetrates the upper surface and the lower surface of the fixed plate 152 is formed in the fixed plate 152.

  Two reinforcing ribs 251 are formed between two of the four reinforcing ribs 151. Both of the two reinforcing ribs 251 are formed in parallel with the reinforcing rib 151. The reinforcing rib 251 is lower in height than the reinforcing rib 151. Between the two reinforcing ribs 251, a hole for accommodating a cylinder 241 of a slide locking / releasing means 240 described later is formed. The two reinforcing ribs 251 are an example of the fixed side legs.

  Two movable leg portions 126 protrude from the back surface 124 of the horizontal portion 121 of the movable frame 120. The movable leg portion 126 is formed in a shape such that the end portion extending along the direction orthogonal to the plane of the vertical portion 122 is folded downward in the horizontal portion 121. The two movable leg portions 126 are formed with an interval therebetween, and extend along a direction orthogonal to the vertical portion 122, that is, along a direction in which the horizontal portion 121 extends.

  The fixed frame 110 and the movable frame 120 face each other with the fixed pressing plate 104 and the movable pressing plate 105 sandwiching a side wall (not shown) of the bathtub, and the horizontal portion 111 of the fixed frame 110 and the horizontal portion 121 of the movable frame 120 face each other. Are arranged as follows. The horizontal portion 121 of the movable frame 120 is slidably inserted between the horizontal portion 111 of the fixed frame 110 and the fixed plate 152. At this time, unlike the bathtub handrail of the first embodiment, the reinforcing rib 151 and the movable side leg 126 are separated by a predetermined distance X. Further, the inner surfaces (facing surfaces) of the two movable side legs 126 are disposed so as to be in sliding contact with the outer surfaces (outer side surfaces) of the two reinforcing ribs 251. In other words, when the movable frame 120 is slid, the sliding direction of the movable leg 126 is regulated by the reinforcing rib 251 sandwiched between the two movable legs 126.

  The slide locking / releasing means 240 for the handrail for bathtubs of the second embodiment is attached on the horizontal portion 111 of the fixed frame 110. The slide locking / releasing means 240 includes a cylinder 241 as a second engagement part, a rod-like connection part 244 connected to the cylinder 241, and an operation part 243 connected to the opposite side of the cylinder 241 in the connection part 244. And a spring 245 as a biasing member that biases the operation portion 243, and a lock member 146 inserted between the column 241 and the operation portion 243. The lock member 146 is the same as the lock member of the handrail for bathtubs of the first embodiment.

  The members constituting the slide locking / releasing means 240 are arranged in the following positional relationship. The cylinder 241 is disposed on the back surface 124 side of the movable frame 120, the lower end of the connecting part 244 is connected to the cylinder 241, and the upper end of the connecting part 244 is connected to the operation part 243. A fixed plate 152 and a lock member 146 are inserted between the cylinder 241 and the operation unit 243.

  The spring 245 is held in the central opening 146 a of the lock member 146 between the fixed plate 152 and the operation unit 243.

  The cylinder 241 is disposed at a position facing the circular hole 130 of the movable frame 120 between the two reinforcing ribs 251 on the horizontal portion 111. A flange 242 is formed so as to protrude vertically from the side peripheral surface of the cylinder 241. The flange 242 is formed at a position where the distance from the upper end of the cylinder 241 is substantially equal to the depth of the circular hole 130. A side peripheral surface 241 a of the cylinder 241 extends in the vertical direction, that is, in a direction orthogonal to the sliding direction of the movable frame 120. The side peripheral surface 241 a of the cylinder 241 is an example of a vertical surface, and is a contact surface that contacts the vertical surface 130 a that is the inner peripheral side surface of the circular hole 130 of the movable frame 120.

  The operation unit 243 is disposed on the surface 123 side of the horizontal part 121 of the movable frame 120. Unlike the first embodiment, the operation unit 243 does not have a wing part. The operation unit 243 is urged from below to above by a spring 245.

  The connecting portion 244 connected to the cylinder 241 passes through the slit 125 of the movable frame 120, the through hole 153 of the fixed plate 152, and the central opening 146 a of the lock member 146. The upper end of the connection part 244 is connected to the lower surface of the operation part 243.

  As shown in FIG. 11, the movable frame 120 is disposed in a space surrounded by the reinforcing rib 151, the fixed plate 152, and the horizontal portion 111 of the fixed frame 110. A chamber 170 is formed by the back surface 124 of the movable frame 120 (including the back surface of the horizontal portion 121 and the back surface of the movable leg portion 126), the horizontal portion 111 of the fixed frame 110, and the reinforcing rib 251. Note that the inside and the outside of the chamber 170 may communicate with each other. For example, a portion of the horizontal portion 111 that faces the cylinder 241 may be opened. That is, the chamber 170 may have a space on the side on which the cylinder 241 moves. In this embodiment, the portion facing the cylinder 241 in the horizontal portion 111 is open.

  As illustrated in FIG. 11, when the operation unit 243 is not operated by the user, the spring 245 biases the operation unit 243 from the bottom to the top. At this time, the cylinder 241 coupled to the operation unit 243 via the coupling unit 244 is also biased from below to above, that is, from the bottom toward the circular hole 130 on the back surface 124 of the horizontal portion 121 of the movable frame 120. The upper part of the cylinder 241 than the flange 242 is accommodated in the circular hole 130, and the cylinder 241 and the circular hole 130 are engaged. In a state where the column 241 and the circular hole 130 are engaged, the movable frame 120 is locked on the fixed frame 110 so as not to slide in a direction away from the fixed frame 110 or a direction approaching the fixed frame 110. .

  When the user pushes down the operation portion 243 against the bias of the spring 245, the cylinder 241 connected to the operation portion 243 also moves downward, and the engagement between the cylinder 241 and the circular hole 130 is performed. Is released. The chamber 170 is formed as a space having a size large enough to accommodate the column 241 moved downward. In this embodiment, the pushing stroke of the operation portion 243, that is, the depth at which the operation portion 243 can be pushed downward is the bottom surface of the flange 242 when the cylinder 241 is engaged with the circular hole 130 and the horizontal portion. It is equal to the distance from the top surface of 111. The operation unit 243 may be arranged on the surface side of the movable leg 126, and the slide locking / releasing means 240 pushes the operation unit 243 along the horizontal direction so that the cylinder 241 extends along the horizontal direction. It may be configured to move.

  As described above, in the handrail for bathtubs of the second embodiment, the fixed frame 110 includes the two reinforcing ribs 251 arranged so as to sandwich the column 241 along the sliding direction of the movable frame 120, and the movable frame 120 includes two movable side legs 126 arranged to sandwich the two reinforcing ribs 251 along the sliding direction. The chamber 170 is surrounded by the surface of the movable frame 120 where the circular hole 130 is formed, the movable side leg 126 and / or the reinforcing rib 251, and the surface of the fixed frame 110 facing the circular hole 130. The reinforcing rib 251 is a reinforcing rib that is long in a direction parallel to the sliding direction, and is formed between the two movable leg portions 126. The inner surfaces of the two movable side legs 126 are arranged so as to be in sliding contact with the outer surfaces of the two reinforcing ribs 251.

  In this way, even if a predetermined gap X is provided between the reinforcing rib 151 and the movable leg 126, the gap is disposed between the two movable legs 126 and slid on the movable leg 126. The sliding direction of the movable frame 120 is regulated by the reinforcing rib 251 in contact therewith. Therefore, the interval and thickness of the four reinforcing ribs 151 can be freely designed regardless of the interval between the movable leg portions 126.

  When the reinforcing rib 251 is arranged between the movable leg portions 126 in this way, the fixing frame 110 is formed with the reinforcing rib 251 across the horizontal portion 111 and the vertical portion 112, and is movable on the reinforcing rib 251. Since the frame 120 is locked, when the user grabs the side grip 160 and goes in and out of the bathtub, the strength of the fixed frame 110 against the load applied in the vertical plane can be improved. By forming the two leg portions 126 on the movable frame 120, similarly, the strength of the movable frame 120 with respect to such a load in the vertical plane is improved. Further, in a state where the movable frame 120 is attached to the fixed frame 110, the two leg portions 126 are disposed so as to face the reinforcing ribs 251, and the outer sides of the reinforcing ribs 251 so as to be in sliding contact with the two reinforcing ribs 251. Therefore, it is possible to prevent the movable frame 120 from rattling in a direction parallel to the vertical portion 122 of the movable frame 120 in the horizontal plane, and when a load is applied to the fixed frame 110 and the movable frame 120 in the vertical plane. It can prevent that intensity falls.

  In addition, by providing an interval X between the reinforcing rib 151 and the movable leg 126, the outer (front surface) side surface of the movable frame 120 can be in sliding contact with the reinforcing rib 151 even when the movable frame 120 is slid. Therefore, it is possible to prevent wrinkles on the outer side (front side) of the movable frame 120 that is easily exposed and exposed to the outside.

  In this embodiment, the chamber 170 includes a surface in which the circular hole 130 is formed in the movable frame 120, a movable side leg 126 and the reinforcing rib 251, and a surface in the fixed frame 110 that faces the circular hole 130. For example, when the upper end of the reinforcing rib as the fixed leg is in contact with the back surface of the movable frame 120, the chamber has a surface formed with the circular hole 130 in the movable frame 120 and the reinforcement. The rib (fixed side leg) and the surface of the fixed frame 110 facing the circular hole 130 are surrounded.

  The other structure and effect of the handrail for bathtubs of 2nd Embodiment are the same as that of the handrail for bathtubs of 1st Embodiment.

(Third embodiment)
The handrail for bathtubs according to the third embodiment of the present invention includes one reinforcing rib having a form different from that of the handrails for bathtubs according to the second embodiment, which is disposed between the two movable leg portions. Hereinafter, it demonstrates centering on a different point from the handrail for bathtubs of 1st Embodiment and 2nd Embodiment.

  As shown in FIGS. 12 and 13, four reinforcing ribs 151 and one reinforcing rib 351 are formed on the upper surface of the horizontal portion 111 of the fixed frame 110 of the handrail for bathtubs of the third embodiment. .

  Any of the reinforcing ribs 151 and 351 extends along a direction orthogonal to the plane of the fixed pressing plate 104, that is, a direction parallel to the sliding direction of the movable frame. In this embodiment, the four reinforcing ribs 151 are formed in parallel to each other. One reinforcing rib 351 is further formed between two of the four reinforcing ribs 151. The reinforcing rib 351 is lower in height than the reinforcing rib 151. On the upper surface of the reinforcing rib 351, an opening 351a for accommodating a cylinder 241 of a slide locking / releasing means 240 described later is formed. The reinforcing rib 351 is an example of a fixed side leg.

  The fixing plate 152 is formed in a plate shape, and is fixed between the two reinforcing ribs 151 on the inner side of the four reinforcing ribs 151. The lower surface of the fixed plate 152 and the upper surface of the horizontal portion 111 are separated by the reinforcing rib 151. A through hole 153 that penetrates the upper surface and the lower surface of the fixed plate 152 is formed in the fixed plate 152.

  Two movable leg portions 126 protrude from the back surface 124 of the horizontal portion 121 of the movable frame 120. The movable leg portion 126 is formed in a shape such that the end portion extending along the direction orthogonal to the plane of the vertical portion 122 is folded downward in the horizontal portion 121. The two movable leg portions 126 are formed with an interval therebetween, and extend along a direction orthogonal to the vertical portion 122, that is, along a direction in which the horizontal portion 121 extends.

  The fixed frame 110 and the movable frame 120 face each other with the fixed pressing plate 104 and the movable pressing plate 105 sandwiching a side wall (not shown) of the bathtub, and the horizontal portion 111 of the fixed frame 110 and the horizontal portion 121 of the movable frame 120 face each other. Are arranged as follows. The horizontal portion 121 of the movable frame 120 is slidably inserted between the horizontal portion 111 of the fixed frame 110 and the fixed plate 152. At this time, unlike the bathtub handrail of the first embodiment, the reinforcing rib 151 and the movable side leg 126 are separated by a predetermined distance X. Further, the inner surfaces (facing surfaces) of the two movable leg portions 126 are disposed so as to be in sliding contact with the outer surfaces of the reinforcing ribs 351. That is, when the movable frame 120 is slid, the sliding direction of the movable leg 126 is regulated by the reinforcing rib 351 sandwiched between the two movable legs 126.

  The slide locking / releasing means 240 for the handrail for bathtubs according to the third embodiment is mounted on the horizontal portion 111 of the fixed frame 110. The slide locking / releasing means 240 includes a cylinder 241 as a second engagement part, a rod-like connection part 244 connected to the cylinder 241, and an operation part 243 connected to the opposite side of the cylinder 241 in the connection part 244. And a spring 245 as a biasing member that biases the operation portion 243, and a lock member 146 inserted between the column 241 and the operation portion 243. The lock member 146 is the same as the lock member of the handrail for bathtubs of the first embodiment.

  The members constituting the slide locking / releasing means 240 are arranged in the following positional relationship. The cylinder 241 is disposed on the back surface 124 side of the movable frame 120, the lower end of the connecting part 244 is connected to the cylinder 241, and the upper end of the connecting part 244 is connected to the operation part 243. A fixed plate 152 and a lock member 146 are inserted between the cylinder 241 and the operation unit 243.

  The spring 245 is held in the central opening 146 a of the lock member 146 between the fixed plate 152 and the operation unit 243.

  The cylinder 241 is disposed at a position facing the circular hole 130 of the movable frame 120 at the position of the opening 351 a formed on the upper surface of the reinforcing rib 351 on the horizontal portion 111. A flange 242 is formed so as to protrude vertically from the side peripheral surface of the cylinder 241. The flange 242 is formed at a position where the distance from the upper end of the cylinder 241 is substantially equal to the depth of the circular hole 130. A side peripheral surface 241 a of the cylinder 241 extends in the vertical direction, that is, in a direction orthogonal to the sliding direction of the movable frame 120. The side peripheral surface 241 a of the cylinder 241 is an example of a vertical surface, and is a contact surface that contacts the vertical surface 130 a that is the inner peripheral side surface of the circular hole 130 of the movable frame 120.

  The operation unit 243 is disposed on the surface 123 side of the horizontal part 121 of the movable frame 120. Unlike the first embodiment, the operation unit 243 does not have a wing part. The operation unit 243 is urged from below to above by a spring 245.

  The connecting portion 244 connected to the cylinder 241 passes through the slit 125 of the movable frame 120, the through hole 153 of the fixed plate 152, and the central opening 146 a of the lock member 146. The upper end of the connection part 244 is connected to the lower surface of the operation part 243.

  As shown in FIG. 13, the movable frame 120 is disposed in a space surrounded by the reinforcing rib 351, the fixed plate 152, and the horizontal portion 111 of the fixed frame 110. A chamber 170 is formed by the back surface 124 of the movable frame 120 (including the back surface of the horizontal portion 121 and the back surface of the movable leg portion 126) and the inner wall surface of the opening 351a provided in the reinforcing rib 351. Note that the inside and the outside of the chamber 170 may communicate with each other. For example, a portion of the horizontal portion 111 that faces the cylinder 241 may be opened. That is, the chamber 170 may have a space on the side on which the cylinder 241 moves. In this embodiment, the portion facing the cylinder 241 in the horizontal portion 111 is open.

  As illustrated in FIG. 13, when the operation unit 243 is not pushed in by the user, the spring 245 biases the operation unit 243 from the bottom to the top. At this time, the cylinder 241 coupled to the operation unit 243 via the coupling unit 244 is also biased from below to above, that is, from the bottom toward the circular hole 130 on the back surface 124 of the horizontal portion 121 of the movable frame 120. The upper part of the cylinder 241 than the flange 242 is accommodated in the circular hole 130, and the cylinder 241 and the circular hole 130 are engaged. In a state where the column 241 and the circular hole 130 are engaged, the movable frame 120 is locked on the fixed frame 110 so as not to slide in a direction away from the fixed frame 110 or a direction approaching the fixed frame 110. .

  When the user pushes down the operation portion 243 against the bias of the spring 245, the cylinder 241 connected to the operation portion 243 also moves downward, and the engagement between the cylinder 241 and the circular hole 130 is performed. Is released. The chamber 170 is formed as a space having a size large enough to accommodate the column 241 moved downward. In this embodiment, the pushing stroke of the operation portion 243, that is, the depth at which the operation portion 243 can be pushed downward is the bottom surface of the flange 242 when the cylinder 241 is engaged with the circular hole 130 and the horizontal portion. It is equal to the distance from the top surface of 111. The operation unit 243 may be arranged on the surface side of the movable leg 126, and the slide locking / releasing means 240 pushes the operation unit 243 along the horizontal direction so that the cylinder 241 extends along the horizontal direction. It may be configured to move.

  As described above, in the bathtub handrail of the third embodiment, the fixed frame 110 has the opening 351a for accommodating the column 241 and is disposed along the sliding direction of the movable frame 120. The movable frame 120 includes the reinforcing ribs 351, and includes two movable side legs 126 arranged so as to sandwich the reinforcing ribs 351 along the sliding direction. The chamber 170 has a surface in which the circular hole 130 is formed in the movable frame 120, an inner wall surface of the opening 351 a provided in the movable side leg 126 and / or the reinforcing rib 351, and a circular hole 130 in the fixed frame 110. It is surrounded by the opposing surface, that is, the upper surface of the reinforcing rib 351. The reinforcing rib 351 is a reinforcing rib that is long in a direction parallel to the sliding direction, and is formed between the two movable side legs 126. Further, the inner surfaces of the two movable side legs 126 are arranged so as to be in sliding contact with the side surfaces of the outer surfaces of the reinforcing ribs 351.

  In this way, even if a predetermined gap X is provided between the reinforcing rib 151 and the movable leg 126, the gap is disposed between the two movable legs 126 and slid on the movable leg 126. The sliding direction of the movable frame 120 is regulated by the reinforcing rib 351 in contact therewith. Therefore, the interval and thickness of the four reinforcing ribs 151 can be freely designed regardless of the interval between the movable leg portions 126.

  When the reinforcing ribs 351 are arranged between the movable leg portions 126 in this way, the fixing frame 110 is formed with the reinforcing ribs 351 across the horizontal portion 111 and the vertical portion 112, and is movable on the reinforcing ribs 351. Since the frame 120 is locked, when the user grabs the side grip 160 and goes in and out of the bathtub, the strength of the fixed frame 110 against the load applied in the vertical plane can be improved. By forming the two leg portions 126 on the movable frame 120, similarly, the strength of the movable frame 120 with respect to such a load in the vertical plane is improved. In addition, in a state where the movable frame 120 is attached to the fixed frame 110, the two leg portions 126 are disposed so as to face the reinforcing rib 351, and sandwich the reinforcing rib 351 from the outside so as to be in sliding contact with the reinforcing rib 251. In the horizontal plane, the movable frame 120 can be prevented from rattling in a direction parallel to the vertical portion 122 of the movable frame 120, and the strength is reduced when a load is applied to the fixed frame 110 and the movable frame 120 in the vertical plane. Can be prevented.

  Further, by providing an interval X between the reinforcing rib 151 and the movable side leg 126, the side surface of the movable frame 120 does not come into sliding contact with the reinforcing rib 151 even when the movable frame 120 is slid. Thus, it is possible to prevent wrinkles on the side surface of the movable frame 120 that is easily visible.

  In this embodiment, the chamber 170 includes a surface in which the circular hole 130 is formed in the movable frame 120, an inner wall surface of the opening 351 a provided in the movable side leg 126 and the reinforcing rib 351, and a fixed frame. 110, the chamber is surrounded by a circular hole in the movable frame 120 when, for example, the upper end of the reinforcing rib as a fixed leg is in contact with the back surface of the movable frame 120. It is formed by being surrounded by the surface on which 130 is formed, the inner wall surface of the opening provided in the reinforcing rib (fixed side leg), and the surface facing the circular hole 130 in the fixed frame 110.

  Other configurations and effects of the handrail for bathtubs of the third embodiment are the same as those of the handrails for bathtubs of the first embodiment and the second embodiment.

  The embodiment disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and includes all modifications within the scope and meaning equivalent to the terms of the claims.

  1: Handrail for bathtub, 110: Fixed frame, 111: Horizontal portion, 112: Vertical portion, 120: Movable frame, 121: Horizontal portion, 122: Vertical portion, 123: Front surface, 124: Back surface, 125: Slit, 126 : Movable side leg portion, 130: circular hole, 130a: vertical surface, 140, 240: slide locking / releasing means, 141, 241: cylinder, 141a, 241a: vertical surface, 142, 242: flange, 143, 243: Operation part, 144,244: Connecting part, 145,245: Spring, 146: Lock member, 146b: Lock part, 151: Reinforcement rib, 152: Fixing plate, 170: Chamber, 251, 351: Reinforcement rib, 351a: Opening Department.

Claims (16)

A fixed frame disposed on the side wall of the bathtub;
A movable frame slidably attached to the fixed frame and disposed on a side wall of the bathtub opposite to the fixed frame;
A first engaging portion including a concave portion or a convex portion and formed on the back surface of the movable frame; and
A second engaging portion that includes a convex portion or a concave portion and is disposed at a position facing the first engaging portion;
An operation unit arranged on the surface side of the movable frame and operated by a user;
A connecting portion that connects the second engaging portion and the operating portion; and a biasing means that biases the second engaging portion to engage the first engaging portion. ,
The second engaging portion is configured to be separated from the first engaging portion by being pushed toward the movable frame against the biasing by the biasing means. Slide locking / releasing means attached to the fixed frame;
A chamber in which the second engaging portion is accommodated when at least the operating portion is pushed against the biasing means,
The contact surface between the first engagement portion and the second engagement portion has a cylindrical side surface shape or a polygonal column side surface shape, and is a surface orthogonal to the back surface of the movable frame. And the handrail for bathtubs containing the surface which is non-parallel to the sliding direction of the said movable frame.   A surface that contacts the second engagement portion at the recess or projection of the first engagement portion, and a surface that contacts the first engagement portion at the projection or recess of the second engagement portion The handrail for bathtubs according to claim 1, which has a cylindrical side surface shape.   The second engaging portion includes a cylindrical convex portion, and the first engaging portion includes a cylindrical side circumferential concave portion that receives the convex portion of the second engaging portion. The handrail for bathtubs as described in 2.   The handrail for bathtubs according to claim 3, wherein the concave portion of the first engaging portion has a bottom.   The handrail for a bathtub according to claim 3, wherein the convex portion of the second engaging portion has a flange.   The movable frame includes a slit that penetrates the front and back surfaces and extends in a sliding direction, and the connecting portion connects the second engaging portion and the operation portion through the slit. The handrail for bathtubs according to any one of claims 1 to 5.   The handrail for bathtubs according to claim 6, wherein the slit is an opening whose peripheral edge is closed. The movable frame includes two movable side legs arranged along the sliding direction so as to sandwich the first engagement portion and / or the second engagement portion,
The chamber is surrounded by a surface of the movable frame where the first engagement portion is formed, the movable leg, and a surface of the fixed frame facing the first engagement portion. The handrail for bathtubs according to any one of claims 1 to 7. The fixed frame includes two fixed side legs disposed along the sliding direction so as to sandwich the first engaging portion and / or the second engaging portion,
The chamber is surrounded by a surface of the movable frame where the first engagement portion is formed, the fixed leg portion, and a surface of the fixed frame facing the first engagement portion. The handrail for bathtubs according to any one of claims 1 to 7. The fixed frame includes two fixed side legs arranged so as to sandwich the first engaging part and / or the second engaging part along a sliding direction,
The movable frame includes two movable side legs disposed so as to sandwich the first engagement portion and / or the second engagement portion along the sliding direction,
The chamber includes a surface on which the first engaging portion is formed in the movable frame, the movable side leg portion and / or the fixed side leg portion, and the first engaging portion in the fixed frame. The handrail for bathtubs of any one of Claim 1- Claim 7 enclosed with the surface which opposes.   The handrail for bathtubs according to claim 10, wherein the two movable side legs are arranged so as to sandwich the two fixed side legs.   The bathtub handrail according to claim 10, wherein inner surfaces of the two movable leg portions are arranged so as to be in sliding contact with outer surfaces of the two fixed leg portions. The fixed frame includes a fixed-side leg portion arranged along the slide direction so as to sandwich the first engagement portion and / or the second engagement portion,
The fixed leg has an opening at a position facing the first engagement portion,
The chamber is surrounded by a surface of the movable frame on which the first engaging portion is formed, an inner wall surface of the opening, and a surface of the fixed frame that faces the first engaging portion. The handrail for bathtubs according to any one of claims 1 to 7. The movable frame includes two movable side legs arranged so as to sandwich the fixed side leg along the sliding direction,
The chamber includes a surface on which the first engaging portion is formed in the movable frame, the movable side leg portion and / or the fixed side leg portion, and the first engaging portion in the fixed frame. The handrail for bathtubs of Claim 13 enclosed by the surface which opposes.   The handrail for bathtubs of Claim 14 arrange | positioned so that the inner surface of two said movable side leg parts may be in sliding contact with the outer surface of the said fixed side leg part.   The handrail for a bathtub according to any one of claims 9 to 15, wherein the fixed leg is a reinforcing rib extending in a direction parallel to a sliding direction of the movable frame.

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