JP5646783B2 - Handrail for bathtub - Google Patents

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, Japanese Patent Application Laid-Open No. 2011-189069 (Patent Document 1) describes a handrail for a bathtub that is used by being attached to an upper end portion of a side wall of the bathtub. The handrail for bathtub is formed by providing an upper piece and a vertical piece arranged to face the upper end surface of the side wall of the bathtub and one of the side walls, a main body with a handrail attached thereto, and an operation handle. And a pressing receptacle that is formed by providing a pressing plate that moves in the direction of approaching and moving away from one side surface of the side wall of the bathtub. A slide bar that protrudes in the horizontal direction is provided at the upper end of the pressing receptacle. A plurality of reinforcing ribs that are long in the direction parallel to the moving direction of the pressing plate are provided on the upper surface of the main body to which the handrail is attached. A slide groove is formed on the upper surface of the upper side between the reinforcing ribs. The slide bar is slidably inserted into the slide groove, and the slide bar is fixed to the upper piece with a screw, thereby coupling the pressure receiving tool to the main body tool.

  In addition, for example, Japanese Patent Application Laid-Open No. 2010-246691 (Patent Document 2) also 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 Literature 2, an engagement groove is provided in the slide piece of the pressure receiving tool, and a latch claw is provided in the main body tool. 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.

JP 2011-189069 A JP 2010-246691 A

  However, in the handrail for bathtubs described in Patent Document 1, when the press receiver is fixed to the upper surface of the main body tool, the slide bar of the press receiver must be fixed with screws, and the handrail for the bathtub is attached to the bathtub. The work of fixing in accordance with the thickness of the side wall becomes complicated.

  In the handrail for bathtubs described in Patent Document 2, the engagement groove having an inclined surface facing the slide inclined surface of the latch claw is exposed. For this reason, when the user hooks the exposed engagement groove or when the slide piece is accommodated in the main body, the user places a hand between the exposed engagement groove and the opening of the main body. May be stuck.

  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.

  The handrail for bathtubs of the present invention includes a fixed frame, a movable frame, a first engagement portion, a slide locking / release means, and a chamber.

  The fixed frame is disposed on the side wall of the bathtub. The movable frame is slidably attached to the fixed frame and is disposed on the side wall of the bathtub opposite to the fixed frame. 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 slide locking / releasing means is attached to the fixed frame.

  The chamber is a space in which at least the second engaging portion separated from the first engaging portion is accommodated when the operating portion is pushed against the biasing means.

  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 engaging portion or the second engaging portion.

  It is preferable that a vertical surface that makes the movable frame not retractable is formed in the concave portion or convex portion of the first engaging portion and the convex portion or concave portion of the second engaging portion.

  The movable frame preferably includes a slit that penetrates the front and back surfaces and extends in the sliding direction. Moreover, it is preferable that the connection part has connected the 2nd engaging part and the operation part through the slit.

  The slit is preferably an opening whose peripheral edge is closed.

  It is preferable that the handrail for bathtubs of this invention is provided with a guide means. The guide means is arranged in parallel with the sliding direction of the movable frame and in sliding contact with the movable frame. Then, the sliding direction of the movable frame is restricted to one direction.

  The guide means preferably includes a fixed portion that sandwiches the movable frame with the fixed frame. Further, it is preferable that at least two guide means are arranged so as to sandwich the movable frame from both side surfaces thereof. Preferably, the guide means further includes a protrusion or a groove on the sliding surface with the movable frame, and the movable frame preferably has a groove or a protrusion on the sliding surface with the guide. Moreover, it is preferable that a guide means is a cylinder provided with the guide path which slidably contacts the surface of a movable frame inside a guide means.

  The slide locking / releasing means may further include a lock member that fixes the engagement between the second engagement portion and the first engagement portion between the operation portion and the second engagement portion. preferable. The lock member preferably includes a lock portion having a thickness corresponding to at least a pushable stroke of the operation portion.

  Moreover, it is preferable that a slide latching / release means is provided with the guide member which slidably contacts with a 2nd engaging part and controls the moving direction of a 2nd engaging part. The guide member is preferably rod-shaped. Moreover, it is preferable that a 2nd engaging part has a guide hole which lets a guide member pass.

  It is preferable that the movable frame includes a movable side leg portion that is disposed with the first engaging portion interposed therebetween along a direction orthogonal to the sliding direction. The chamber is preferably surrounded by a surface of the movable frame on which the first engagement portion is formed, a movable side leg portion, and a surface of the fixed frame facing the first engagement portion.

  It is preferable that the fixed frame includes a fixed-side leg portion that is disposed with the first engagement portion interposed in a direction orthogonal to the sliding direction. The chamber is preferably surrounded by a surface of the movable frame on which the first engagement portion is formed, a fixed leg portion, and a surface of the fixed frame that faces the first engagement portion.

  The fixed frame preferably has a recess formed in a region facing the second engagement portion. The chamber is preferably surrounded at least by the surface of the movable frame where the first engaging portion is formed and the wall of the recess.

  As mentioned above, according to this invention, it is easy to fix according to the thickness of the side wall of a bathtub, Comprising: The attachment operation to the side wall of a bathtub and the removal operation | work from the side wall of a bathtub are easy and safe. The handrail for bathtubs which can be performed can be provided.

It is a perspective view showing the whole handrail for bathtubs of a 1st embodiment of the present invention. 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 of this invention 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 figure which shows the cross section similar to FIG. 7 about the handrail for bathtubs of 2nd Embodiment of this invention. It is a figure which shows the cross section similar to FIG. 7 about the handrail for bathtubs of 3rd Embodiment of this invention. It is a figure which shows the cross section similar to FIG. 7 about the handrail for bathtubs of 4th Embodiment of this invention.

  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. The two inner reinforcing ribs 151 and the fixing plate 152 are an example of a guide means.

  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, a band tooth 130 is formed as a first engaging portion. On the surface of the band tooth 130, a plurality of teeth arranged in parallel as a plurality of concave portions and convex portions are formed. Each tooth extends along a direction orthogonal to the direction in which the movable frame extends. The plurality of teeth are arranged along the direction in which the movable frame extends. The band teeth 130 may be unevenness or teeth formed directly on the horizontal portion 121 of the movable frame 120, or may be formed separately from the movable frame 120 and attached to the back surface 124 of the horizontal portion 121. There may be. In addition, the space | interval with which several teeth are arranged is not specifically limited. Further, the width of the teeth (the horizontal length and the vertical thickness) is not particularly limited.

  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 an engaging member 141 having a plurality of protrusions formed as a second engaging portion, a bar-shaped connecting portion 144 connected to the engaging member 141, and a connecting portion 144. An operating portion 143 coupled to the opposite side of the combined member 141; a spring 145 as a biasing member that biases the operating portion 143; a lock member 146 inserted between the engaging member 141 and the operating portion 143; A guide bar 147 is included as a guide member attached to the fixed plate 152.

  The members constituting the slide locking / releasing means 140 are arranged in the following positional relationship. The engaging member 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 engaging member 141, and the upper end of the connecting portion 144 is connected to the operating portion 143. A fixing plate 152 and a lock member 146 are inserted between the engagement member 141 and the operation unit 143.

  The guide bar 147 extends downward from the lower surface of the fixed plate 152. The guide rod 147 passes through the slit 125 of the movable frame 120. The lower end of the guide bar 147 is attached to the upper surface of the horizontal portion 111 of the fixed frame 110. The spring 145 is held in a hollow spring holder 148 installed on the horizontal portion 111 of the fixed frame 110. The spring holder 148 is disposed on both sides of the engaging member 141 with the reinforcing rib 151 interposed therebetween.

  The engaging member 141 is disposed at a position facing the band teeth 130 of the movable frame 120 between the two reinforcing ribs 151 on the horizontal portion 111. In this embodiment, a plurality of protrusions arranged on a plane are formed on the upper surface of the engagement member 141, that is, the surface facing the band teeth 130, but the plurality of recesses and protrusions are parallel to each other. A large number of teeth arranged in a row may be formed, and in this case as well as the band tooth 130, the interval between teeth and the width of the teeth are not particularly limited. Each projection extends along a direction orthogonal to the direction in which the movable frame 120 extends. The plurality of protrusions are arranged along the direction in which the movable frame 120 extends. Two guide holes 142 are formed in the engaging member 141. A guide rod 147 is passed through the guide hole 142. The diameter of the guide hole 142 is substantially equal to the diameter of the guide bar 147, and the guide bar 147 is in sliding contact with the peripheral wall surface of the guide hole 142.

  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 engaging member 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.

  In the band tooth 130 of the movable frame 120, an inclined surface 130 a is formed on the side close to the vertical portion 112 of the fixed frame 110, and a vertical surface 130 b is formed on the side far from the vertical portion 112. On the protrusion of the engaging member 141, an inclined surface 141 a is formed on the side close to the vertical portion 122 of the movable frame 120, and a vertical surface 141 b is formed on the side far from the vertical portion 122. The inclined surface 130a of the band tooth 130 and the inclined surface 141a of the protrusion of the engaging member 141 are opposed to each other, and the vertical surface 130b and the vertical surface 141b 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 communicate with each other. For example, a portion of the horizontal portion 111 that faces the engaging member 141 may be opened. That is, the chamber 170 may have a space on the side where the engagement member 141 moves. In this embodiment, a space is provided between the lower surface of the engaging member 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 engaging member 141 coupled to the operation unit 143 via the coupling unit 144 is also directed from the bottom to the top, that is, from the bottom toward the band teeth 130 on the back surface 124 of the horizontal portion 121 of the movable frame 120. The engagement member 141 and the band tooth 130 are engaged with each other. In a state where the engaging member 141 and the band teeth 130 are engaged, the movable frame 120 is locked on the fixed frame 110 so as not to slide in the direction away from the fixed frame 110.

  As shown in FIG. 8, when the user pushes down the operation portion 143 against the bias of the spring 145, the engaging member 141 connected to the operation portion 143 also moves downward, The engagement between the combined member 141 and the band teeth 130 is released. The chamber 170 is formed as a space having a size large enough to accommodate the engaging member 141 moved downward. In this embodiment, the pushing stroke of the operating portion 143, that is, the depth at which the operating portion 143 can be pushed down is determined by the engaging member 141 when the engaging member 141 is engaged with the band tooth 130. It is equal to the distance between the lower surface and the upper surface of the horizontal portion 111. The operation unit 143 may be disposed 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 engagement member 141 moves in the horizontal direction. It may be configured to move along.

  A guide rod 147 is passed through the guide hole 142 of the engagement member 141, and the guide rod 147 is in sliding contact with the peripheral wall surface of the guide hole 142, so that the operation portion 143 is pushed and the engagement member 141 is moved downward. The engagement member 141 is less likely to rattle when moving to the position.

  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 of the main body 100 and slides the horizontal portion 121 of the movable frame 120 on the horizontal portion 111 of the fixed frame 110 along the direction orthogonal to the side wall surface of the bathtub. . At this time, since the inclined surface 130a of the band tooth 130 of the movable frame 120 slides on the inclined surface 141a of the engagement member 141, the user can disengage the band tooth 130 from the engagement member 141. There is no need to operate the operation unit 143 of the stop / release means 140. 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 number of teeth or protrusions are formed on the band tooth 130 and the engaging member 141, respectively. By changing which projection of the engagement member 141 and which tooth of the band tooth 130 are fitted, the length of the engagement member 141 and the band tooth 130 can be adjusted.

  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 portion 143 is locked, the protrusion of the engaging member 141 and the band tooth 130 are engaged as described above. At this time, the inclined surface 130a of the band tooth 130 and the inclined surface 141a of the engaging member 141 are opposed to each other, and the vertical surface 130b of the band tooth 130 and the vertical surface 141b of the engaging member 141 are opposed to each other. Therefore, even if the user applies a force to the movable frame 120 so that the movable pressing plate 105 is moved away from the side wall of the bathtub, the vertical surface 130b and the vertical surface 141b are pressed against each other, and 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 engaging member 141 moves in the chamber 170 in a direction away from the band teeth 130. In this way, the engagement between the band tooth 130 and the engagement member 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 band teeth 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 band tooth 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 an engagement member 141, an operation part 143, a connection part 144, and a spring 145. The engaging member 141 includes a convex portion or a concave portion, and is disposed at a position facing the band tooth 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 portion 144 connects the engaging member 141 and the operation portion 143. The spring 145 urges the engagement member 141 to engage the band tooth 130. The slide locking / releasing means 140 is configured such that the engaging member 141 is separated from the band tooth 130 when the operation portion 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 at least a space in which the engaging member 141 separated from the band tooth 130 is accommodated when the operation portion 143 is pushed against the spring 145. In this embodiment, the chamber 170 has an engagement member not only when the engagement member 141 is separated from the band teeth 130 but also when the engagement member 141 is engaged with the band teeth 130. 130 is accommodated.

  An inclined surface 130 a and an inclined surface 141 a that allow the movable frame 120 to advance are formed in the concave or convex portion of the band tooth 130 or the convex or concave portion of the engaging member 141.

  The engaging member 141 is biased by the spring 145 so as to be engaged with the band tooth 130. When the user operates the operation unit 143 to push the slide locking / releasing means 140 against the biasing force of the spring 145, the engaging member 141 is separated from the band tooth 130. As described above, the engaging member 141 is accommodated in the chamber 170 even when the engaging member 141 is separated from the band teeth 130.

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

  In addition, an inclined surface 130a and an inclined surface 141a that allow the movable frame 120 to advance are formed in at least one of the concave portion or convex portion of the band tooth 130 or the convex portion or concave portion of the engaging member 141. The frame 120 can be easily brought close to the bathtub wall surface.

  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 vertical surface 130b is formed in the band tooth 130, and the vertical surface 141b is formed in the engaging member 141. The vertical surface 130b and the vertical surface 141b make the movable frame 120 not retractable.

  By doing in this way, the state which advanced the movable frame 120 can be maintained, and the handrail 1 for bathtubs can be reliably fixed to the side wall of a bathtub.

  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 engaging member 141 and the operation portion 143 through the slit 125.

  By doing so, it is easy to connect the operation unit 143 disposed on the front surface 123 side of the movable frame 120 and the engaging member 141 disposed on the back surface 124 side of the movable frame 120 by the coupling unit 144. Become.

  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.

  Moreover, the handrail 1 for bathtubs is provided with the reinforcement rib 151 and the fixed plate 152 as a guide means. The reinforcing rib 151 is disposed in parallel with the sliding direction of the movable frame 120 and in sliding contact with the movable frame 120. The reinforcing rib 151 and the fixed plate 152 are for restricting the sliding direction of the movable frame 120 in one direction.

  In this way, the position of the movable frame 120 on the fixed frame 110 can be easily determined.

  In the bathtub handrail 1, the guide means includes a fixed plate 152 that sandwiches the movable frame 120 with the fixed frame 110.

  By doing so, the movable frame 120 can be made difficult to float on the fixed frame 110 with a simple configuration.

  Further, in the bathtub handrail 1, the guide means forms a reinforcing rib 151 extending along the upper surface of the fixed frame 110. At least two reinforcing ribs 151 are arranged so as to sandwich the movable frame 120 from both side surfaces thereof.

  By doing so, the position of the movable frame 120 can be easily determined with a simple configuration, and the strength against the load in the left-right direction on the movable frame 120 is improved.

  In the bathtub handrail 1, the slide locking / releasing means 140 is a locking member that fixes the engagement between the engagement member 141 and the band tooth 130 between the operation portion 143 and the engagement member 141. 146 is further included.

  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.

  Further, in the bathtub handrail 1, the lock member 146 includes at least a lock portion 146 b having a thickness D corresponding to a pushable stroke of the operation portion 143.

  By doing so, it is possible to prevent the operation portion 143 from being pushed in by the user by sandwiching the lock portion 146b of the lock member 146 between the operation portion 143 and the surface 123 of the movable frame 120.

  In the bathtub handrail 1, the slide locking / releasing means 140 includes a guide bar 147 that slidably contacts the engaging member 141 and restricts the moving direction of the engaging member 141. The guide bar 147 has a bar shape. The engaging member 141 has a guide hole 142 through which the guide rod 147 passes.

  By doing so, rattling of the engaging member 141 can be prevented, and the engaging member 141 can be accurately engaged with the band teeth 130.

  Moreover, in the handrail 1 for bathtubs, the movable frame 120 includes a movable leg 126 that is disposed with the band teeth 130 sandwiched along a direction orthogonal to the sliding direction. The chamber 170 is surrounded by the surface of the movable frame 120 where the band teeth 130 are formed, the movable side leg 126, and the surface of the fixed frame 110 facing the band teeth 130.

  By doing so, the chamber 170 can be formed with a simple configuration.

  In the handrail 1 for a bathtub according to the first embodiment, the guide means includes the reinforcing rib 151 and the fixed plate 152, but the guide means does not include the reinforcing rib 151 and the fixed plate 152. It may be formed. When the guide means is formed as a cylinder, a guide passage that is in sliding contact with the surface 123 of the movable frame 120 is formed inside the cylinder. The movable frame 120 is slid inside the cylinder. Thus, the position of the movable frame 120 on the fixed frame 110 can be easily determined with a simple configuration.

  Moreover, in the handrail 1 for bathtubs, the recessed portions of the first engaging portion and the second engaging portion are formed as recessed holes without a bottom instead of being formed as recessed portions having a substantially trapezoidal cross section. It may be.

(Second Embodiment)
The main structure of the handrail for bathtubs of 2nd Embodiment is the same as that of the handrail for bathtubs of 1st Embodiment. The handrail for bathtubs of the second embodiment differs from the handrail for bathtubs of the first embodiment in the shape of the horizontal portion of the movable frame and the shape of the reinforcing rib.

  As shown in FIG. 10, a protrusion 227 protruding from the side surface is formed on the side surface of the movable leg 226 formed on the horizontal portion 221 of the movable frame of the second embodiment. Further, a groove 252 is formed on the surface of the reinforcing rib 251 that is in sliding contact with the side surface of the horizontal portion 221 as a guide means. The protrusion 227 of the horizontal portion 221 of the movable frame is accommodated in the groove 252 of the reinforcing rib 251. The periphery of the protrusion 227 is in sliding contact with the inner wall surface of the groove 252. When the movable frame is slid, the protrusion 227 moves along the groove 252. By doing so, it becomes easy to restrict the sliding direction of the movable frame to one direction by the reinforcing rib 251.

  In the second embodiment, the chamber 270 is formed by the back surface 224 of the movable frame (including the back surface of the horizontal portion 221 and the back surface of the movable side leg portion 226) and the top surface of the horizontal portion 111 of the fixed frame.

  As described above, in the bathtub handrail of the second embodiment, the reinforcing rib 251 includes the groove 252 on the sliding contact surface with the movable frame 120, and the movable frame 120 is provided on the sliding contact surface with the reinforcing rib 251. A protrusion 227 is provided.

  By doing so, the movable frame 120 can be made difficult to float on the fixed frame 110, and the strength against the vertical load on the movable frame 120 is improved. In this embodiment, the fixing plate 152 may not be provided.

  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 main structure of the handrail for bathtubs of 3rd Embodiment is the same as that of the handrail for bathtubs of 1st Embodiment. The handrail for bathtub of 3rd Embodiment differs from the handrail for bathtub of 1st Embodiment in the shape of the horizontal part of a movable frame, and the shape of the horizontal part of a fixed frame.

  As shown in FIG. 11, the movable leg 126 (FIG. 7) is not formed on the horizontal portion 321 of the movable frame of the third embodiment. The horizontal part 321 is formed in a substantially flat plate shape. On the upper surface of the horizontal portion 311 of the fixed frame, a fixed-side leg portion 313 that protrudes upward from the upper surface of the horizontal portion 311 is formed in a region facing the horizontal portion 321 of the movable frame.

  The horizontal part 321 of the movable frame is sandwiched between the fixed leg 313 and the fixed plate 152 in the vertical direction, and is sandwiched between the two reinforcing ribs 151 in the horizontal direction. By doing so, it becomes easy to restrict the sliding direction of the movable frame to one direction.

  As described above, in the handrail for bathtubs according to the third embodiment, the fixed frame includes the fixed side legs 313. The fixed leg portion 313 is arranged along a direction orthogonal to the sliding direction with a band tooth formed on the back surface 324 of the horizontal portion 321 of the movable frame interposed therebetween. The chamber 370 is surrounded by the back surface 324 of the movable frame, the fixed leg 313, and the surface of the fixed frame that faces the band teeth. In this way, the chamber 370 can be formed with a simple configuration.

  The other structure and effect of the handrail for bathtubs of 3rd Embodiment are the same as that of the handrail for bathtubs of 1st Embodiment.

(Fourth embodiment)
The main structure of the handrail for bathtubs of 4th Embodiment is the same as that of the handrail for bathtubs of 1st Embodiment. The handrail for bathtubs of the fourth embodiment differs from the handrail for bathtubs of the first embodiment in the shape of the horizontal portion of the fixed frame.

  As shown in FIG. 12, a concave portion 413 is formed in the horizontal portion 411 of the fixed frame of the fourth embodiment. The recess 413 is formed in a region facing the engagement member 141. A chamber 470 is formed by the inner wall surface of the recess 413, the back surface 124 of the movable frame (including the back surface of the horizontal portion 121 and the back surface of the movable side leg portion 126), and the upper surface of the horizontal portion 411 of the fixed frame. Thus, the chamber 470 is surrounded by at least the back surface 124 of the movable frame and the wall of the recess 413. By doing so, the chamber 470 can be formed with a simple configuration. Moreover, by doing in this way, compared with the chamber 170 of 1st Embodiment, since the movable side leg part 126 can be shortened with the height of the chamber 470 maintained, the operation part 143 is relatively set. It can be brought close to the fixed frame 110, and the handrail for bathtub can be made compact. The movable leg 126 may not be formed, and the chamber 470 may be formed by the surface of the movable frame where the band teeth are formed and the wall of the recess 413.

  Other configurations and effects of the handrail for bathtubs of the fourth embodiment are the same as those of the handrail for bathtubs of the first 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, 311, 411: Horizontal portion, 112: Vertical portion, 120: Movable frame, 121, 221, 321: Horizontal portion, 122: Vertical portion, 123: Surface, 124 , 224, 324: back surface, 125: slit, 126, 226: movable side leg portion, 130: band tooth, 140: slide locking / releasing means, 141: engagement member, 142: guide hole, 143: operation portion, 144: connecting portion, 145: spring, 146: lock member, 146b: lock portion, 147: guide rod, 151, 251: reinforcing rib, 152: fixing plate, 170, 270, 370, 470: chamber, 227: protrusion, 252: groove, 313: fixed leg, 413: recess.

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 handrail for a bathtub comprising at least a chamber in which the second engagement portion is accommodated when the operation portion is pushed against the biasing means.   A vertical surface that makes the movable frame not retractable is formed in the concave portion or convex portion of the first engaging portion and the convex portion or concave portion of the second engaging portion. The handrail for bathtubs according to claim 1.   The movable frame includes a slit that penetrates the front and back surfaces and extends in the sliding direction, and the connecting portion connects the second engaging portion and the operation portion through the slit. The handrail for bathtubs according to claim 1.   The handrail for bathtubs according to claim 3, wherein the slit is an opening whose peripheral edge is closed. The handrail for bathtubs according to claim 1, further comprising guide means arranged in parallel with the sliding direction of the movable frame and in sliding contact with the movable frame, and for restricting the sliding direction of the movable frame. .   The handrail for bathtubs according to claim 5, wherein the guide means includes a fixed portion that sandwiches the movable frame with the fixed frame.   The handrail for bathtubs according to claim 5, wherein at least two of the guide means are disposed so as to sandwich the movable frame from both side surfaces thereof.   The said guide means is provided with a protrusion or a groove on the sliding surface with the movable frame, and the movable frame is provided with a groove or a protrusion on the sliding surface with the guide. The handrail for bathtubs as described.   The handrail for a bathtub according to claim 5, wherein the guide means is a cylindrical body provided with a guide passage in sliding contact with the surface of the movable frame inside the guide means.   The slide locking / releasing means is a lock member that fixes the engagement between the second engagement portion and the first engagement portion between the operation portion and the second engagement portion. The handrail for bathtubs according to claim 1, further comprising:   The handrail for a bathtub according to claim 10, wherein the lock member includes a lock portion having a thickness corresponding to at least a pushable stroke of the operation portion.   2. The bathtub according to claim 1, wherein the slide locking / releasing means includes a guide member that slidably contacts the second engagement portion and restricts a moving direction of the second engagement portion. Handrail.   The handrail for bathtubs according to claim 12, wherein the guide member has a bar shape, and the second engaging portion has a guide hole through which the guide member passes. The movable frame includes a movable side leg portion arranged with the first engagement portion sandwiched along a direction orthogonal to the sliding direction,
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 bathtub handrail according to claim 1. The fixed frame includes a fixed-side leg portion that is disposed across the first engagement portion along a direction orthogonal to the slide direction,
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 bathtub handrail according to claim 1. The fixed frame has a recess formed in a region facing the second engagement portion,
The handrail for bathtubs according to claim 1, wherein the chamber is surrounded by at least a surface of the movable frame where the first engaging portion is formed and a wall of the recess.

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