JP5912314B2 - Coupling structure and handrail for bathtub with the same - Google Patents

Description

  The present invention relates generally to a connection structure, and more particularly to a connection structure that connects two members. Moreover, it is related with the handrail for bathtubs provided with it.

  Conventionally, there is a handrail for a bathtub that is detachably attached to the side wall of the bathtub. Some handrails for bathtubs can adjust the height of the handrail grip.

  For example, Japanese Patent Application Laid-Open No. 2000-41881 (Patent Document 1) describes a bathtub handrail device used by being attached to a side wall of a bathtub. In this handrail device for bathtubs, a handrail piece of a handrail body bent in a substantially U shape is supported by a support portion fixed to the side wall of the bathtub so that it can move freely from the opening end surface of the bathtub. Yes.

  A through hole is formed in the handrail piece of the handrail device for a bathtub, and a plurality of through holes are formed in the support portion. An insertion pin is inserted into the through hole and the through hole to fix the handrail piece and the support portion. The insertion pin has a pin main body and a pin holder. The pin main body is inserted into the through hole of the support piece and the through hole of the leg piece, and the pin holder is held by the support piece of the support portion. By doing in this way, it prevents that an insertion pin is extracted accidentally. Moreover, fixation of a handrail piece and a support part can be cancelled | released by removing an insertion pin from a handrail piece and a support part.

  The unlocked handrail piece is drawn out so as to protrude from the opening end face of the bathtub, and the height of the handrail piece from the opening end face is adjusted. Then, the handrail piece is fixed to the support piece in a state in which the height is adjusted by inserting the pin main body into a through hole and a through hole appropriately selected from among the plurality of through holes of the support piece.

JP 2000-41881 A

  However, in the bathtub handrail device described in Patent Document 1, when adjusting the height of the handrail piece, the insertion pin must be completely removed from the handrail portion and the support portion. Therefore, it is easy to lose the insertion pin when adjusting the height of the handrail piece. Moreover, since the periphery of the cylindrical handrail piece and the support portion is formed in a curved surface, the pin holder must be deformed along the curved surface when the pin body is inserted into the through hole and the through hole. Therefore, a large force is required when the handrail piece is fixed to the support portion.

  Thus, the conventional handrail device for bathtubs needs to be careful not to lose the insertion pin when adjusting the height of the handrail piece, and it is easy to fix the handrail piece to the support portion. It is not easy to handle.

  Accordingly, an object of the present invention is to provide a connection structure that is easy to handle and a handrail for a bathtub provided with the connection structure.

  The connection structure according to one aspect of the present invention includes a first member, a second member connected to the first member, and a connecting portion that connects the first member and the second member.

  An engagement hole is formed in each of the first member and the second member. The connection part includes a covering part, an insertion part, an arm part, and a connection part side locking part. The covering portion covers the engagement hole. The insertion portion is formed so as to protrude from the covering portion, and is inserted into the engagement hole between the first member and the second member. The arm portion is connected to the covering portion and extends along the direction in which the insertion portion extends. The connecting portion side locking portion is formed on the arm portion and locked on the first member. The first member includes a first member-side temporary locking portion, a first member-side temporary locking portion, a first member-side temporary locking portion, and a first member side that detachably lock the connecting portion-side locking portion. And a flat part formed between the main locking part. The 1st member side temporary latching | locking part is arrange | positioned in the position near an engagement hole compared with the 1st member side permanent latching | locking part. In the first member side temporary locking portion, the distance between the end portion on the engagement hole side of the first member and the end portion on the engagement hole side of the first member in the first member side main locking portion is: It is more than the depth of the engagement hole of the second member.

  In the connection structure configured as described above, the first member and the second member are connected as follows. First, the engagement hole of the first member is aligned with the engagement hole of the second member. Next, the insertion part protruding from the covering part is inserted into the engaging hole of the first member and the engaging hole of the second member so that the covering part of the connecting part covers the engaging hole. An arm portion extends from the covering portion of the connecting portion. The arm portion extends along the direction in which the insertion portion extends, and a connecting portion side locking portion is formed on the arm portion. By inserting the insertion portion into the engagement hole of the first member and the engagement hole of the second member from the outside of the first member and the second member, the connection portion side locking portion of the arm portion is Outside the engagement hole of the member and the engagement hole of the second member, the insertion portion is moved in the insertion direction.

  The 1st member side temporary latching | locking part of the 1st member is arrange | positioned in the position near an engagement hole rather than the 1st member side main latching | locking part. The connecting portion side locking portion moved in the direction in which the insertion portion is inserted outside the engaging hole of the first member and the engaging hole of the second member is first the position of the first member side temporary locking portion. To reach. The connecting portion side locking portion can be locked to the first member side temporary locking portion, but by further inserting the insertion portion toward the inside of the engaging hole, the connecting portion side locking portion becomes the first portion. It is moved from the member-side temporary locking portion toward the first member-side main locking portion. A planar portion is formed between the first member side temporary locking portion and the first member side temporary locking portion. Therefore, when the connecting portion side locking portion is moved from the first member side temporary locking portion toward the first member side main locking portion, the first member side temporary locking portion and the first member side temporary locking portion are moved. It is not necessary to greatly deform the arm portion on which the connecting portion side locking portion is formed as compared with the case where the portion is formed with a curved surface or an uneven surface.

  Furthermore, the insertion portion is inserted toward the inside of the engagement hole, and the connecting portion side locking portion moved on the plane portion reaches the position of the first member side main locking portion. The connecting portion side locking portion is locked to the first member side main locking portion.

  The length of the insertion portion is appropriately designed. For example, when the connecting portion side locking portion is locked to the first member side main locking portion, the end of the insertion portion opposite to the covering portion is completely inserted into the engagement hole of the second member. Thus, the length of the insertion portion can be designed.

  Next, an operation for releasing the connection between the first member and the second member will be described. When the connecting portion is moved in the direction in which the insertion portion is extracted from the engaging hole, first, the connecting portion side locking portion is disengaged from the first member side main locking portion. The connecting portion side locking portion moves on a flat portion formed between the first member side main locking portion and the first member side temporary locking portion. Therefore, when the connecting portion side locking portion is moved from the first member side main locking portion toward the first member side temporary locking portion, the first member side main locking portion and the first member side temporary locking portion are moved. It is not necessary to greatly deform the arm portion on which the connecting portion side locking portion is formed as compared with the case where the portion is formed with a curved surface or an uneven surface.

  The distance between the end of the first member on the engagement hole side of the first member side temporary locking portion and the end of the first member side main locking portion on the engagement hole side of the first member is second. It is more than the depth of the engagement hole of a member. Therefore, for example, when the length of the insertion portion is designed as described above, the coupling portion side locking portion is the first member when the insertion portion is completely inserted into the engagement hole of the second member. When it is locked to the side main locking portion and the connecting portion side locking portion is in the first member side temporary locking portion, the insertion portion is made to be completely out of the engagement hole of the second member. be able to. The first member and the second member are not connected in a state where the insertion portion is completely removed from the engagement hole of the second member.

  When the connecting portion is further moved, the connecting portion side locking portion reaches a position where it is locked by the first member side temporary locking portion. For example, when the length of the insertion portion is designed as described above, when the connection portion side locking portion is locked to the first member side temporary locking portion, the insertion portion is the second member's temporary locking portion. It is in a state of being completely pulled out from the engagement hole.

  As described above, when the insertion portion is completely pulled out from the engagement hole of the second member, that is, in a state where the first member and the second member are not connected, the connecting portion side locking portion of the connecting portion is The first member side temporary locking portion is locked. By doing so, when the connection between the first member and the second member is released and the positional relationship between the first member and the second member is adjusted, the connecting portion is removed from the first member and the second member. Can be removed and lost.

  Further, since the planar portion is formed between the first member side temporary locking portion and the first member side temporary locking portion, the connecting portion side locking portion is connected to the first member side temporary locking portion and the first member side temporary locking portion. When moving between the one-member-side main locking portions, the deformation of the arm portion can be reduced as compared with the conventional one.

  By doing in this way, the connection structure with easy handling can be provided.

  In the connection structure according to one aspect of the present invention, the connection portion side locking portion is a convex portion, and the first member side temporary locking portion is a concave portion formed on the outer surface of the first member. Is preferred. The depth of the recess is preferably deeper on the side closer to the engagement hole of the first member and shallower on the side farther from the engagement hole of the first member.

  By doing so, when the connecting portion side locking portion is moved from the first member side temporary locking portion to the first member side main locking portion, that is, the insertion portion is inserted toward the inside of the engagement hole. When it does, it becomes easy to remove | release the connection part side latching | locking part by the 1st member side temporary latching | locking part.

  In the connection structure according to one aspect of the present invention, the first member is preferably a cylinder having a relatively large inner diameter, and the second member is preferably a cylinder having a relatively small inner diameter. The second member is preferably accommodated inside the first member so as to be slidable inside the first member. The second member preferably has a sub-engagement hole formed at a position facing the engagement hole of the second member. The insertion portion is preferably formed to have a length that penetrates both the engagement hole and the sub-engagement hole. In the first member side temporary locking portion, the distance between the end portion on the engagement hole side of the first member and the end portion on the engagement hole side of the first member in the first member side main locking portion is: The depth of the engagement hole of the second member, the distance from the engagement hole of the second member to the sub-engagement hole, and the depth of the sub-engagement hole of the second member are preferably equal to or greater than the total length. .

  By doing so, the length of the insertion portion is made to penetrate both the engagement hole and the sub-engagement hole of the second member, and is inserted into the engagement hole and the sub-engagement hole of the second member. The first member and the second member can be more firmly connected by inserting the part. Moreover, a connection part can be latched on the 1st member in the state by which connection with the 2nd member and the 1st member was cancelled | released.

  In the connection structure according to one aspect of the present invention, the first member preferably has a sub-engagement hole formed at a position facing the engagement hole of the first member. In the first member side temporary locking portion, the distance between the end portion on the engagement hole side of the first member and the end portion on the engagement hole side of the first member in the first member side main locking portion is: The second member engagement hole depth, the distance from the second member engagement hole to the sub-engagement hole, the second member sub-engagement hole depth, and the second member sub-engagement hole It is preferable that it is more than the total length of the distance to the sub-engagement hole of 1 member, and the depth of the sub-engagement hole of the 1st member.

  By doing in this way, the length of the insertion portion is made to penetrate both the engagement hole and the sub-engagement hole of the first member, the engagement hole and the sub-engagement hole of the first member, An insertion part can be inserted in the engagement hole and sub-engagement hole of a 2nd member, and a 1st member and a 2nd member can be connected more firmly. Moreover, a connection part can be latched on the 1st member in the state by which connection with the 2nd member and the 1st member was cancelled | released.

  A connecting structure according to another aspect of the present invention includes a first member, a second member connected to the first member, and a connecting portion that connects the first member and the second member.

  An engagement hole is formed in each of the first member and the second member. The connecting portion includes a covering portion, an insertion portion, an arm portion, a connecting portion-side temporary locking portion, and a connecting portion-side main locking portion. The covering portion covers the engagement hole. The insertion portion is formed so as to protrude from the covering portion, and is inserted into the engagement hole between the first member and the second member. The arm portion is connected to the covering portion and extends along the direction in which the insertion portion extends. The connecting portion side temporary locking portion and the connecting portion side main locking portion are formed on the arm portion and locked on the first member. The first member is formed adjacent to the first member side locking portion and the first member side locking portion that detachably locks the connecting portion side temporary locking portion and the connecting portion side main locking portion. And a flat portion. The flat portion is formed at a position farther from the engagement hole of the first member than the first member side locking portion. The connecting portion side main locking portion is disposed closer to the covering portion than the connecting portion side temporary locking portion. The distance between the end on the covering portion side in the connecting portion side main engaging portion and the end on the covering portion side in the connecting portion side temporary engaging portion is equal to or greater than the depth of the engaging hole of the second member.

  In the connection structure configured as described above, the first member and the second member are connected as follows. First, the engagement hole of the first member is aligned with the engagement hole of the second member. Next, the insertion part protruding from the covering part is inserted into the engaging hole of the first member and the engaging hole of the second member so that the covering part of the connecting part covers the engaging hole. An arm portion extends from the covering portion of the connecting portion. The arm portion extends along the direction in which the insertion portion extends, and the connecting portion-side temporary locking portion and the connecting portion-side main locking portion are formed on the arm portion. By inserting the insertion part from the outside of the first member and the second member into the engagement hole of the first member and the engagement hole of the second member, the joint part side temporary locking part and the connection part of the arm part The side main locking portion is moved in the direction in which the insertion portion is inserted outside the engagement hole of the first member and the engagement hole of the second member.

  The connecting portion side main locking portion of the connecting portion is disposed at a position closer to the covering portion than the connecting portion side temporary locking portion. When the connecting portion is moved in the direction in which the inserting portion is inserted outside the engaging hole of the first member and the engaging hole of the second member, first, the connecting portion side temporary locking portion is engaged with the first member side engagement. Reach the stop position. The connecting portion-side temporary locking portion can be locked to the first member-side locking portion, but by further inserting the insertion portion toward the inside of the engaging hole, the connecting portion-side temporary locking portion is It is moved from the one-member-side locking portion toward the flat portion. The flat surface portion is formed adjacent to the first member side locking portion at a position farther from the engagement hole of the first member than the first member side locking portion. Therefore, when the connecting portion-side temporary locking portion passes through the first member-side locking portion and is moved in a direction away from the engaging hole of the first member, the first member-side locking portion in the first member Compared with the case where the portion adjacent to is formed with a curved surface or an uneven surface, it is not necessary to greatly deform the arm portion where the connecting portion side main locking portion and the connecting portion side temporary locking portion are formed. .

  When the insertion portion is further inserted toward the inside of the engagement hole, the connecting portion side main locking portion then reaches the position of the first member side locking portion. The connecting portion side main locking portion is locked to the first member side locking portion.

  The length of the insertion portion is appropriately designed. For example, when the connecting portion side main locking portion is locked to the first member side locking portion, the end portion of the insertion portion opposite to the covering portion is completely inserted into the engagement hole of the second member. Thus, the length of the insertion portion can be designed.

  Next, an operation for releasing the connection between the first member and the second member will be described. When the connecting portion is moved in the direction in which the insertion portion is extracted from the engaging hole, first, the connecting portion side main engaging portion is disengaged from the first member side engaging portion. On the other hand, the connecting portion-side temporary locking portion moves on the flat portion. Therefore, compared to the case where the portion adjacent to the first member side locking portion is formed with a curved surface or an uneven surface at a position farther from the engagement hole of the first member than the first member side locking portion. There is no need to greatly deform the arm portion where the part side temporary locking part and the connecting part side main locking part are formed.

  The distance between the end portion on the covering portion side in the connecting portion side temporary locking portion and the end portion on the covering portion side in the connecting portion side main engaging portion is equal to or greater than the depth of the engagement hole of the second member. Therefore, for example, when the length of the insertion portion is designed as described above, the connecting portion side main locking portion is the first in the state where the insertion portion is completely inserted into the engagement hole of the second member. When the connecting portion side temporary locking portion is locked to the first member side locking portion and locked to the member side locking portion, the insertion portion is completely removed from the engaging hole of the second member. Can be. The first member and the second member are not connected in a state where the insertion portion is completely removed from the engagement hole of the second member.

  When the connecting portion is further moved, the connecting portion-side temporary locking portion reaches a position where it is locked by the first member-side locking portion. For example, when the length of the insertion portion is designed as described above, the insertion portion is the second member when the connecting portion-side temporary locking portion is locked to the first member-side temporary locking portion. It is in the state which pulled out completely from the engagement hole.

  As described above, when the insertion portion is completely pulled out from the engagement hole of the second member, that is, in a state where the first member and the second member are not connected, the connecting portion side temporary locking portion of the connecting portion. Is locked to the first member side locking portion. By doing so, when the connection between the first member and the second member is released and the positional relationship between the first member and the second member is adjusted, the connecting portion is removed from the first member and the second member. Can be removed and lost.

  Further, the connecting portion side temporary lock is formed by forming a flat portion at a position farther from the engagement hole of the first member than the first member side lock portion adjacent to the first member side lock portion. When the connecting portion is moved from the position where the portion is locked to the first member side locking portion to the position where the connecting portion side main locking portion is locked to the first member side locking portion, the arm portion is deformed. Can be made smaller than before. Further, the connecting portion is moved from the position where the connecting portion side main locking portion is locked to the first member side locking portion to the position where the connecting portion side temporary locking portion is locked to the first member side locking portion. When doing so, the deformation of the arm portion can be reduced as compared with the prior art.

  By doing in this way, the connection structure with easy handling can be provided.

  In the connection structure according to another aspect of the present invention, the first member is preferably a cylinder having a relatively large inner diameter, and the second member is preferably a cylinder having a relatively small inner diameter. The second member is preferably accommodated inside the first member so as to be slidable inside the first member. The second member preferably has a sub-engagement hole formed at a position facing the engagement hole of the second member. The insertion portion is preferably formed to have a length that penetrates both the engagement hole and the sub-engagement hole. The distance between the end on the covering portion side in the connecting portion side main locking portion and the end on the covering portion side in the connecting portion side temporary locking portion is the depth of the engagement hole of the second member and the second member. The distance from the engagement hole to the sub-engagement hole and the depth of the sub-engagement hole of the second member are preferably equal to or greater than the total length.

  By doing so, the length of the insertion portion is made to penetrate both the engagement hole and the sub-engagement hole of the second member, and is inserted into the engagement hole and the sub-engagement hole of the second member. The first member and the second member can be more firmly connected by inserting the part. Moreover, a connection part can be latched on the 1st member in the state by which connection with the 2nd member and the 1st member was cancelled | released.

  In the connection structure according to another aspect of the present invention, the first member preferably has a sub-engagement hole formed at a position facing the engagement hole of the first member. The distance between the end on the covering portion side in the connecting portion side main locking portion and the end on the covering portion side in the connecting portion side temporary locking portion is the depth of the engagement hole of the second member and the second member. The distance from the engagement hole to the sub-engagement hole, the depth of the sub-engagement hole of the second member, the distance from the sub-engagement hole of the second member to the sub-engagement hole of the first member, and the first It is preferable that it is more than the total length with the depth of the sub-engagement hole of a member.

  By doing in this way, the length of the insertion portion is made to penetrate both the engagement hole and the sub-engagement hole of the first member, the engagement hole and the sub-engagement hole of the first member, An insertion part can be inserted in the engagement hole and sub-engagement hole of a 2nd member, and a 1st member and a 2nd member can be connected more firmly. Moreover, a connection part can be latched on the 1st member in the state by which connection with the 2nd member and the 1st member was cancelled | released.

  In the connection structure according to the present invention, it is preferable that a plurality of engagement holes are formed in the second member.

  By doing in this way, the positional relationship of a 1st member and a 2nd member can be adjusted by selecting the engagement hole in which an insertion part is inserted in a 2nd member.

  The bathtub handrail according to the present invention preferably includes a handrail portion, a main body portion, and any one of the connection structures described above. The handrail portion includes a handle portion. A main-body part is arrange | positioned at the side wall of a bathtub and supports a handrail part. It is preferable that the 1st member is arrange | positioned at the main-body part. It is preferable that the second member is disposed on the handrail portion and fixed to the handle portion.

  By doing in this way, the handrail for bathtubs which can adjust the height of a handle part easily and safely can be provided.

  The bathtub handrail according to the present invention preferably includes a fixing portion for fixing the handrail portion to the main body portion.

  By doing in this way, rattling of the handrail can be prevented.

  In the handrail for bathtubs according to this invention, it is preferable that a fixing | fixed part is arrange | positioned between a handrail part and the upper surface of a main-body part.

  By doing in this way, the shakiness of a handrail part can be prevented more effectively.

  As described above, according to the present invention, it is possible to provide a connection structure that is easy to handle and a handrail for a bathtub provided with the connection structure.

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 state which removed the cover of the handrail for bathtubs. It is sectional drawing which looked at the handrail for bathtubs shown in FIG. 2 from the direction shown by the III-III line. It is sectional drawing when the fixing pin of the handrail for bathtubs shown in FIG. 3 exists in a temporary latching state. It is sectional drawing which shows the fixing pin of the handrail for bathtubs of 2nd Embodiment of this invention, and its periphery. It is sectional drawing when the fixing pin of the handrail for bathtubs shown in FIG. 5 exists in a temporary latching state. It is sectional drawing which shows the fixing pin of the handrail for bathtubs of 3rd Embodiment of this invention, and its periphery. It is sectional drawing which expands and shows the connection structure of the handrail for bathtubs shown in FIG. It is sectional drawing when the fixing pin of the handrail for bathtubs shown in FIG. 7 exists in a temporary latching state. It is sectional drawing which shows the fixing pin of the handrail for bathtubs of 4th Embodiment of this invention, and its periphery. It is sectional drawing which expands and shows the connection structure of the handrail for bathtubs shown in FIG. It is sectional drawing when the fixing pin of the handrail for bathtubs shown in FIG. 10 exists in a temporary latching state.

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

(First embodiment)
As shown in FIG. 1 and FIG. 2, a handrail 1 for a bathtub according to one embodiment of the present invention mainly includes a handrail portion 200 and a main body 100 as a main body portion.

  The handrail portion 200 includes an upper grip 210 as a handle portion and two struts 220 as a second member. The column 220 is supported by the main body 100 so as to extend in a substantially vertical direction. A plurality of holes 221 are formed in the column 220 along the axis. The upper grip 210 is fixed to the column 220 so as to be stretched over the upper ends of the two columns 220. The hole 221 is an example of an engagement hole.

  The main body 100 includes an outer main body portion 110 disposed outside the bathtub wall and an inner main body portion 120 disposed inside the bathtub wall. A first pressing plate 111 is attached to the outer body portion 110, and a second pressing plate 121 is attached to the inner body portion 120. The outer main body 110 includes a handrail accommodating portion 114 as a cylindrical first member. A part of the column 220 of the handrail part 200 is housed in the handrail part accommodating part 114 so as to be removable.

  The outer main body 110 and the inner main body 120 are arranged so that the first pressing plate 111 and the second pressing plate 121 face each other with a bathtub wall (not shown) interposed therebetween. The inner body portion 120 is a portion arranged on the upper end portion of the bathtub wall so as to be able to slide on the outer body portion 110 and adjust the distance between the first pressing plate 111 and the second pressing plate 121. Is fitted to the outer body 110.

  A side surface of the main body 100 arranged outside the bathtub is covered with a handle knob hidden cover 131. The handle knob hidden cover 131 is detachably attached to the frame support 112 of the outer main body 110. A side grip 122 is attached to a side surface of the inner main body 120 that is disposed inside the bathtub.

  Between the upper surface of the main body 100 and the upper grip 210, the two columns 220 are fixed to the outer main body 110 by fixing nuts 400 as fixing parts, respectively. Note that the fixing portion may be formed of a C-ring or other members in addition to the nut.

  As shown in FIG. 2, when the handle knob hidden cover 131 is removed from the frame support portion 112, the handle knob 113 attached to the outer body portion 110, the handrail portion accommodating portion 114 and the fixing pin 301 as the first member Is exposed. One handrail portion accommodating portion 114 is disposed at each end of the outer body portion 110 in the horizontal direction. The handrail accommodating portion 114 is formed in a cylindrical shape extending in a substantially vertical direction. The handrail portion accommodating portion 114 accommodates struts 220 in which holes 221 are formed at a plurality of positions in the vertical direction along the axis of the struts 220. The column 220 is accommodated in the handrail accommodating portion 114 so as to be slidable along the axis. The handle knob 113 is connected to the first pressing plate 111 by a bolt shaft at the center of the outer body 110. The fixing pin 301 is an example of a connecting portion.

  As shown in FIG. 3, the connection structure 10 includes a handrail portion accommodating portion 114, a column 220, and a fixing pin 301. The support column 220 is accommodated inside the cylindrical cavity of the handrail accommodating portion 114. A hole 115 is formed as an engagement hole in the handrail accommodating portion 114. A fixing pin 301 is fitted on the outer surface of the handrail accommodating portion 114.

  The fixing pin 301 is formed in a C shape as a whole, and includes a cover 310 as a covering portion, an insertion pin 320 as an insertion portion, a pair of arms 330 as an arm portion, and a pair of dropouts as a connecting portion side locking portion. A prevention rib 340 and a pair of anti-slip ribs 350 are included. The cover 310 covers the hole 115. The insertion pin 320 is formed so as to protrude from the cover 310, and is inserted into the hole 115, the column 220, and the hole 221 of the handrail portion accommodating portion 114. The pair of arms 330 is connected to the cover 310 and extends along the direction in which the insertion pin 320 extends. The drop-off prevention rib 340 is formed at each end of the pair of arms 330. The drop prevention rib 340 is a protrusion that protrudes toward the insertion pin 320. The anti-slip ribs 350 are formed on both sides of the cover 310 on the tip side of the arm 330 with respect to the cover 310. The anti-slip rib 350 is a protrusion protruding toward the opposite side of the insertion pin 320. The slip prevention rib 350 is preferably formed between the cover 310 and the drop prevention rib 340. In this embodiment, the cover 310 and the arm 330 are integrally formed. The cover 310 and the arm 330 may be formed by separate members and fixed to each other, for example.

A hole 115 is formed in the handrail housing portion 114. The handrail housing portion 114 includes a pair of temporary locking portions 116 as a first member side temporary locking portion, a pair of final locking portions 117 as a first member side main locking portion, and a temporary locking portion 116. A pair of locking extensions 118 is included as a flat portion formed between the locking portions 117. The temporary locking portion 116 and the main locking portion 117 are concave portions formed on the outer surface of the handrail portion accommodating portion 114. The temporary locking portion 116 is formed at a position closer to the hole 115 as compared to the main locking portion 117. The depth of the concave portion of the temporary locking portion 116 is deep on the side far from the main locking portion 117 and shallow on the side near the main locking portion 117. The strut 220, hole 221 of the depth _{D 1} is along the axis a plurality, formed. The distance D ₂ between the end of the temporary locking portion 116 on the hole 115 side and the end of the main locking portion 117 on the hole 115 side is equal to or greater than the depth D ₁ of the hole 221 of the column 220. The pair of locking extensions 118 are formed in parallel in this embodiment. However, the pair of locking extensions 118 are each formed by a flat surface, and may not be formed in parallel to each other as long as they are not formed by an uneven surface or a curved surface. Further, in this embodiment, the pair of locking extensions 118 are each formed in parallel with the direction in which the insertion pin 320 extends. However, the pair of locking extensions 118 may not be formed in parallel with the direction in which the insertion pin 320 extends. That is, one locking extension 118 may be inclined with respect to the other locking extension 118, and the locking extension 118 is inclined with respect to the extending direction of the insertion pin 320. Also good.

  In the state shown in FIG. 3, the drop-off prevention rib 340 is locked to the main locking portion 117 on the handrail portion accommodating portion 114. The end of the insertion pin 320 is completely inserted into the hole 221 of the column 220. In this state, the handrail housing portion 114 and the support column 220 are connected by the fixing pin 301.

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

  When attaching the bathtub handrail 1 to the bathtub wall, first, the outer body 110 and the inner body 120 are combined, and the distance between the first pressing plate 111 and the second pressing plate 121 is the thickness of the bathtub wall. The main body 100 is disposed on the side wall of the bathtub in a wider state. At this time, the handle knob hidden cover 131 is removed. The outer main body 110 is disposed such that the first pressing plate 111 faces the bathtub wall surface (outer surface of the bathtub wall) outside the bathtub. The inner main body 120 is arranged such that the second pressing plate 121 faces the bathtub wall surface (inner surface of the bathtub wall) inside the bathtub.

  Next, the user holds the side grip 122 of the inner main body 120 and slides the inner main body 120 along a direction orthogonal to the bathtub wall surface. In this way, the outer body portion 110 and the inner body portion 120 are arranged such that the first pressing plate 111 is in contact with the outer surface of the bathtub wall and the second pressing plate 121 is in contact with the inner surface of the bathtub wall. Adjust the position.

  After adjusting the positions of the outer main body 110 and the inner main body 120, the user turns the handle knob 113, if necessary, so that the first pressing plate 111 and the second pressing plate 121 are connected to the bathtub wall. Can be fine-tuned to make full contact. By doing in this way, the handrail 1 for bathtubs can be firmly fixed to the side wall of a bathtub.

  After fixing the main body 100 to the side wall of the bathtub in this manner, the height of the upper grip 210 is adjusted. The user first loosens the fixing nut 400. Further, the arm 330 of the fixing pin 301 is held and pulled out in the direction indicated by the arrow P in FIG. When the user puts his / her finger on the anti-slip ribs 350 on both sides of the cover 310 and applies a force in the direction of pulling out the fixing pin 301, the tip of the arm 330 is expanded by the lever principle. By extending the tip of the arm 330, the drop-off prevention rib 340 and the main locking portion 117 can be easily disengaged. When the user pulls out the fixing pin 301 in this manner, the drop-off prevention rib 340 is first removed from the main locking portion 117.

  When the user further pulls out the fixing pin 301, the drop-off prevention rib 340 moves on the locking extension 118 from the main locking portion 117 toward the temporary locking portion 116.

  As shown in FIG. 4, when the drop-off prevention rib 340 reaches the temporary locking portion 116, the drop-off prevention rib 340 is locked by the temporary locking portion 116. At this time, the insertion pin 320 is completely extracted from the hole 221 of the column 220. On the other hand, the insertion pin 320 remains inserted into the hole 115 of the handrail portion accommodating portion 114. In other words, the handrail portion accommodating portion 114 and the column 220 are not connected by the fixing pin 301, but are in a temporarily locked state where the fixing pin 301 is retained on the handrail portion accommodating portion 114.

  The user grasps the upper grip 210 and adjusts the height of the upper grip 210 in the temporarily locked state. Since the handrail part accommodating part 114 and the support | pillar 220 are not connected, the user can slide the support | pillar 220 inside the handrail part accommodating part 114. FIG.

  When the height of the upper grip 210 is adjusted, the user selects the column hole 221 to be aligned with the hole 115 of the handrail unit accommodating portion 114, and the insertion pin 320 is inserted into the hole 221 of the selected column 220. Then, the fixing pin 301 is pushed to the support 220 side. At this time, the drop-off prevention rib 340 is detached from the temporary locking portion 116. When the user further presses the fixing pin 301, the drop-off prevention rib 340 moves on the locking extension 118 from the temporary locking portion 116 toward the main locking portion 117 and is locked to the main locking portion 117. The At this time, the insertion pin 320 is inserted into the hole 115 of the handrail portion accommodating portion 114 and the hole 221 of the support column 220 to be in a fully locked state.

  Finally, the handle knob hidden cover 131 is attached to the outer body 110 so as to cover the handle knob 113, and the fixing nut 400 is tightened.

  As described above, the connection structure 10 of the handrail 1 for a bathtub connects the handrail portion accommodating portion 114, the column 220 coupled to the handrail portion accommodating portion 114, and the handrail portion accommodating portion 114 and the column 220. The fixing pin 301 is provided.

A hole 115 is formed in the handrail housing portion 114, and a hole 221 is formed in the column 220. The fixing pin 301 includes a cover 310, an insertion pin 320, an arm 330, and a drop prevention rib 340. The cover 310 covers the hole 115 and the hole 221. The insertion pin 320 is formed so as to protrude from the cover 310 and is inserted into the hole 115 of the handrail portion accommodating portion 114 and the hole 221 of the column 220. Arm 330 is connected to cover 310 and extends along the direction in which insertion pin 320 extends. The drop-off prevention rib 340 is formed on the arm 330 and is locked on the handrail portion accommodating portion 114. The handrail accommodating portion 114 is formed between the temporary locking portion 116 and the main locking portion 117 that detachably locks the drop-off preventing rib 340, and between the temporary locking portion 116 and the main locking portion 117. Locking extension 118. The temporary locking portion 116 is disposed at a position closer to the hole 115 than the main locking portion 117. The distance D ₂ between the end of the temporary locking portion 116 on the hole 115 side and the end of the main locking portion 117 on the hole 115 side is equal to or greater than the depth D ₁ of the hole 221 of the column 220.

  In the connection structure 10 configured as described above, the handrail portion accommodating portion 114 and the support column 220 are connected as follows. First, the hole 115 of the handrail part accommodating part 114 and the hole 221 of the support | pillar 220 are match | combined. Next, the insertion pin 320 protruding from the cover 310 is inserted into the hole 115 of the handrail portion accommodating portion 114 and the hole 221 of the column 220 so that the cover 310 of the fixing pin 301 covers the hole 115 and the hole 221. An arm 330 extends from the cover 310 of the fixing pin 301. The arm 330 extends along the direction in which the insertion pin 320 extends, and a drop prevention rib 340 is formed on the arm 330. By inserting the insertion pin 320 into the hole 221 of the handrail part accommodating part 114 and the inside of the hole 221 of the pillar 220 from the outside of the handrail part accommodating part 114 and the column 220, the fall prevention rib 340 of the arm 330 is The insertion pin 320 is moved in the direction in which the insertion pin 320 is inserted outside the hole 115 of the sliding portion accommodating portion 114 and the hole 221 of the support column 220.

  The temporary locking portion 116 of the handrail housing portion 114 is disposed at a position closer to the hole 115 than the main locking portion 117. The drop-off prevention rib 340 that is moved in the direction in which the insertion pin 320 is inserted outside the hole 115 of the handrail portion accommodating portion 114 and the hole 221 of the support column 220 first reaches the position of the temporary locking portion 116. The drop-off prevention rib 340 can be locked to the temporary locking portion 116, but by further inserting the insertion pin 320 toward the inside of the hole 115 and the hole 221, the drop-off prevention rib 340 is separated from the temporary locking portion 116. It moves toward the main locking part 117. A locking extension 118 is formed between the temporary locking portion 116 and the main locking portion 117. Therefore, when the drop-off prevention rib 340 is moved from the temporary locking portion 116 toward the main locking portion 117, a curved surface or an uneven surface is formed between the main locking portion 117 and the temporary locking portion 116. Compared to the case, it is not necessary to greatly deform the arm 330 on which the drop-off prevention rib 340 is formed.

  Further, the drop-off prevention rib 340 inserted into the hole 115 and the hole 221 and moved on the locking extension 118 reaches the position of the main locking part 117. The drop-off prevention rib 340 is locked to the main locking portion 117.

  The length of the insertion pin 320 is appropriately designed. For example, when the fall prevention rib 340 is locked to the main locking portion 117, the insertion pin 320 is inserted so that the end of the insertion pin 320 opposite to the cover 310 is completely inserted into the hole 221 of the support column 220. The length of can be designed.

  Next, an operation for releasing the connection between the handrail housing portion 114 and the column 220 will be described. When the fixing pin 301 is moved in the direction in which the insertion pin 320 is extracted from the hole 221, first, the drop-off prevention rib 340 is detached from the main locking portion 117. The drop-off prevention rib 340 moves on the locking extension 118 formed between the main locking portion 117 and the temporary locking portion 116. By forming the locking extension 118 between the main locking portion 117 and the temporary locking portion 116, a curved surface or an uneven surface is formed between the main locking portion 117 and the temporary locking portion 116. Compared to the case where the arm 330 is formed, the arm 330 on which the drop-off prevention rib 340 is formed does not need to be greatly deformed.

The distance between the end of the temporary locking portion 116 on the hole 115 side and the end of the main locking portion 117 on the hole 115 side is equal to or greater than the depth D ₁ of the hole 221 of the support column 220. Therefore, for example, when the length of the insertion pin 320 is designed as described above, the drop-off prevention rib 340 is provided with the main locking portion 117 when the insertion pin 320 is completely inserted into the hole 221 of the column 220. When the drop-off prevention rib 340 is in the temporary locking portion 116, the insertion pin 320 can be completely removed from the hole 221 of the column 220. In a state where the insertion pin 320 is completely removed from the hole 221 of the support column 220, the handrail portion accommodating portion 114 and the support column 220 are not connected.

  When the fixing pin 301 is further moved, the drop prevention rib 340 reaches a position where it is locked to the temporary locking portion 116. For example, when the length of the insertion pin 320 is designed as described above, the insertion pin 320 is completely removed from the hole 221 of the column 220 when the drop-off prevention rib 340 is locked to the temporary locking portion 116. It is in a state that has come out.

  As described above, when the insertion pin 320 is completely pulled out from the hole 221 of the support column 220, that is, in a state where the handrail portion accommodating portion 114 and the support column 220 are not connected, the drop-off prevention rib 340 of the fixing pin 301 is formed. By being locked to the temporary locking portion 116, the connection between the handrail portion accommodating portion 114 and the column 220 is released and the positional relationship between the handrail portion accommodating portion 114 and the column 220 is adjusted. The pin 301 is removed from both the handrail portion accommodating portion 114 and the support column 220 and is not lost.

  In addition, since the locking extension 118 is formed between the temporary locking portion 116 and the main locking portion 117, the drop-off preventing rib 340 is provided between the temporary locking portion 116 and the main locking portion 117. It is possible to reduce the deformation of the arm 330 when moving the arm.

  By doing in this way, the handrail 1 for bathtubs provided with the connection structure 10 with easy handling can be provided.

  Moreover, in the connection structure 10 of the handrail 1 for bathtubs, a plurality of holes 221 are formed in the column 220.

  By doing in this way, the positional relationship between the handrail part accommodating part 114 and the support | pillar 220 can be adjusted by selecting the hole 221 in which the insertion pin 320 is inserted in the support | pillar 220. FIG.

  Moreover, in the connection structure 10 of the handrail 1 for bathtubs, the drop-off prevention rib 340 is a convex portion, and the temporary locking portion 116 is a concave portion formed on the outer surface of the handrail portion accommodating portion 114. The depth of the recess is deeper on the side closer to the hole 115 and shallower on the side farther from the hole 115.

  By doing so, when the drop-off prevention rib 340 is moved from the temporary locking portion 116 to the main locking portion 117, that is, when the insertion pin 320 is inserted toward the inside of the hole 221, the temporary locking portion 116. It becomes easy to release the locking of the drop-off prevention rib 340.

  Moreover, the handrail 1 for bathtubs is provided with the handrail part 200, the main body 100, and said connection structure 10. FIG. The handrail portion 200 includes an upper grip 210. The main body 100 is disposed on the side wall of the bathtub and supports the handrail portion 200. The handrail portion accommodating portion 114 is disposed in the main body 100. The support column 220 is disposed on the handrail portion 200 and is fixed to the upper grip 210.

  By doing in this way, the handrail 1 for bathtubs which can adjust the height of the upper grip 210 easily and safely can be provided.

  The bathtub handrail 1 includes a fixing nut 400 that fixes the column 220 to the main body 100.

  By doing in this way, the backlash of the support | pillar 220 can be prevented.

  In the bathtub handrail 1, the fixing nut 400 is disposed between the handrail portion 200 and the upper surface of the main body 100.

  By doing in this way, the play of the support | pillar 220 can be prevented more effectively.

  In addition, in 1st Embodiment, although the connection structure 10 is used for the handrail 1 for bathtubs, the connection structure 10 is a cane which can adjust the length by connecting two or more cylindrical members, It may be used to connect two or more members in a chair or the like in which two or more members are connected to adjust the height of the seating surface.

(Second Embodiment)
The handrail for bathtubs of 2nd Embodiment is equipped with the structure substantially the same as the handrail for bathtubs of 1st Embodiment.

  FIG. 5 is a cross-sectional view of the handrail for bathtubs according to the second embodiment, and shows a cross section having the same height as that of the handrail for bathtubs according to the first embodiment shown in FIG. 3. The handrail for bathtubs of the second embodiment is similar to the handrail for bathtubs of the first embodiment, mainly the handrail portion 200 (FIG. 2), the main body 100 (FIG. 2) as the main body portion, and the connecting structure 20. With. The handrail portion 200 includes an upper grip 210 as a handle portion and two struts 220 as a second member.

As shown in FIG. 5, the connecting structure 20 of the handrail for bathtubs of the second embodiment is different from the connecting structure 10 of the handrail for bathtubs of the first embodiment (FIG. 3). A plurality of main holes 221a and sub-holes 221b are formed. The main hole 221a and the sub hole 221b are formed at both ends of the diameter of the support column 220 and face each other. The main hole 221a is an example of an engagement hole, and the sub hole 221b is an example of a sub engagement hole. Main aperture 221a has a depth _{D 3,} the distance sub-ports 221b depth _{D 5,} the main hole 221a to sub-ports 221b, i.e., the inner diameter of the post 220 is formed of the diameter _{D 4.}

In handrail unit accommodating portion 114, the distance _{D 6} between the end of the hole 115 side and the end portion of the hole 115 side of the locking portion 117 of the temporary locking portion 116, the depth of the main aperture 221a of the strut 220 It is formed over the total magnitude of the difference _{D 3} and sub-ports 221b of the depth _{D 5} and the diameter _{D 4} of the strut 220.

  The length of the insertion pin 320 of the fixing pin 302 is formed such that it is completely inserted into both the main hole 221a and the sub hole 221b of the column 220 when the fixing pin 302 is attached to the handrail portion accommodating portion 114. Has been. The arm 330 is longer than the arm 330 of the first embodiment, and the fixing pin 302 is formed in a U shape as a whole. The length of the arm 330 may be designed as appropriate. Other configurations of the fixing pin 302 are the same as those of the fixing pin 301 of the first embodiment.

  In the state shown in FIG. 5, the insertion pin 320 is completely inserted into both the main hole 221 a and the sub hole 221 b of the column 220. In this state, the handrail portion accommodating portion 114 and the column 220 are connected by the fixing pin 302 and are in the final locked state.

  As shown in FIG. 6, when the user pulls out the fixing pin 302 in the same manner as in the first embodiment, the drop-off prevention rib 340 moves from the main locking portion 117 to the temporary locking portion 116 on the locking extension portion 118. Move towards.

  When the drop-off prevention rib 340 reaches the temporary locking portion 116, the drop-off prevention rib 340 is locked by the temporary locking portion 116. At this time, the insertion pin 320 is completely extracted from the main hole 221a and the sub hole 221b of the column 220. On the other hand, the insertion pin 320 remains inserted into the hole 115 of the handrail portion accommodating portion 114. That is, the handrail portion accommodating portion 114 and the column 220 are not connected by the fixing pin 302, but are in a temporarily locked state where the fixing pin 302 is retained on the handrail portion accommodating portion 114.

  As described above, the connecting structure 20 for the handrail for bathtubs connects the handrail portion accommodating portion 114, the strut 220 coupled to the handrail portion accommodating portion 114, and the handrail portion accommodating portion 114 and the strut 220. And a fixing pin 302.

A hole 115 is formed in the handrail housing portion 114, and a main hole 221 a is formed in the column 220. The fixing pin 302 includes a cover 310, an insertion pin 320, an arm 330, and a drop prevention rib 340. The cover 310 covers the hole 115 and the main hole 221a. The insertion pin 320 is formed so as to protrude from the cover 310 and is inserted into the hole 115 of the handrail portion accommodating portion 114 and the main hole 221 a of the column 220. Arm 330 is connected to cover 310 and extends along the direction in which insertion pin 320 extends. The drop-off prevention rib 340 is formed on the arm 330 and is locked on the handrail portion accommodating portion 114. The handrail accommodating portion 114 is formed between the temporary locking portion 116 and the main locking portion 117 that detachably locks the drop-off preventing rib 340, and between the temporary locking portion 116 and the main locking portion 117. Locking extension 118. The temporary locking portion 116 is disposed at a position closer to the hole 115 than the main locking portion 117. The distance D ₆ between the end of the temporary locking portion 116 on the hole 115 side and the end of the main locking portion 117 on the hole 115 side is equal to or greater than the depth D ₃ of the main hole 221 a of the support column 220.

  By doing in this way, the handrail for bathtubs provided with the connection structure 20 with easy handling can be provided.

Moreover, in the connection structure 20 of the handrail for bathtubs, the handrail part accommodating part 114 is a cylinder with a relatively large internal diameter, and the support | pillar 220 is a cylinder with a relatively small internal diameter. The support column 220 is accommodated inside the handrail portion accommodating portion 114 so as to be slidable inside the handrail portion accommodating portion 114. The column 220 has a sub-hole 221b formed at a position facing the main hole 221a. The insertion pin 320 is formed to have a length that penetrates both the main hole 221a and the sub hole 221b. The distance D ₆ between the end of the temporary locking portion 116 on the hole 115 side and the end of the main locking portion 117 on the hole 115 side is equal to the depth D ₃ of the main hole 221 a of the support 220 and the distance D ₆ of the support 220. This is not less than the total length of the distance D ₄ from the main hole 221 a to the sub hole 221 b and the depth D ₅ of the sub hole 221 b of the support column 220.

  In this way, the length of the insertion pin 320 is set to a length that penetrates both the main hole 221a and the sub hole 221b of the column 220, and the insertion pin 320 is inserted into the main hole 221a and the sub hole 221b of the column 220. By inserting, the handrail part accommodating part 114 and the support | pillar 220 can be connected more firmly. Further, the fixing pin 302 can be locked onto the handrail portion accommodating portion 114 in a state where the connection between the support column 220 and the handrail portion accommodating portion 114 is released.

  Other configurations and effects of the handrail for bathtubs of the second embodiment are the same as those of the handrail 1 for bathtubs of the first embodiment.

(Third embodiment)
The handrail for bathtubs of 3rd Embodiment is equipped with the structure substantially the same as the handrail for bathtubs of 1st Embodiment.

  FIG. 7 is a cross-sectional view of the handrail for bathtubs according to the third embodiment, and shows a cross section having the same height as the cross-sectional view of the handrail for bathtubs according to the first embodiment shown in FIG. 3. The handrail for bathtubs according to the third embodiment is similar to the handrail for bathtubs according to the first embodiment. Mainly, the handrail portion 200 (FIG. 2), the main body 100 (FIG. 2) as the main body portion, and the connection structure 30. With. The handrail portion 200 includes an upper grip 210 as a handle portion and two struts 220 as a second member.

As shown in FIGS. 7 and 8, the connecting structure 30 for the handrail for bathtubs of the third embodiment is different from the connecting structure 10 for the handrails for bathtubs of the first embodiment (FIG. 3). A plurality of main holes 221a and sub holes 221b are formed along the axis. The main hole 221a and the sub hole 221b are formed at both ends of the diameter of the support column 220 and face each other. The main hole 221a is an example of an engagement hole, and the sub hole 221b is an example of a sub engagement hole. Main aperture 221a has a depth _{D 7,} a distance of sub-ports 221b depth _{D 9,} the main hole 221a to sub-ports 221b, i.e., the inner diameter of the post 220 is formed of the diameter _{D 8.}

Moreover, in the handrail for bathtubs of 3rd Embodiment, the main hole 115a and the subhole 115b are formed in the handrail part accommodating part 114. FIG. The main hole 115a and the sub hole 115b are formed at both ends of the cylindrical inner diameter of the handrail portion accommodating portion 114 and face each other. In this embodiment, the sub-hole 115b is a recess formed on the inner wall surface of the handrail portion accommodating portion 114, and does not penetrate the wall surface of the handrail portion accommodating portion 114. The main hole 115a is an example of an engagement hole, and the sub hole 115b is an example of a sub engagement hole. Sub-ports 115b are formed to a size of the depth _{D 11.} In handrail of this embodiment, between the sub-ports 115b of the sub-ports 221b and handrail portion accommodating portion 114 of the strut 220, the gap distance _{D 10} of it is formed.

In the handrail housing portion 114, the distance D ₁₂ between the end portion of the temporary locking portion 116 on the main hole 115 a side and the end portion of the main locking portion 117 on the main hole 115 a side is the main hole 221 a of the column 220. the diameter _{D 8} of the depth _{D 7} and sub-ports 221b of the depth _{D 9} and the support 220, a distance _{D 10} from the sub-ports 221b of the strut 220 to the sub-ports 115b of the handrail portion housing portion 114, sub-ports 115b are formed such that the sum of the sizes of the depth D ₁₁ of the.

  The length of the insertion pin 320 of the fixed pin 303 is such that when the fixed pin 303 is attached to the handrail portion accommodating portion 114, the main hole 221 a and the sub hole 221 b of the support column 220 and the main hole 115 a of the handrail portion accommodating portion 114. And a length to be completely inserted into all of the sub-holes 115b. The arm 330 is longer than the arm 330 of the first embodiment, and the fixing pin 303 is formed in a U shape as a whole. The length of the arm 330 may be designed as appropriate. Other configurations of the fixing pin 303 are the same as those of the fixing pin 301 of the first embodiment.

  In the state shown in FIG. 7, the insertion pin 320 is completely inserted into all of the main hole 221 a and the sub hole 221 b of the support column 220, and the main hole 115 a and the sub hole 115 b of the handrail part accommodating portion 114. In this state, the handrail portion accommodating portion 114 and the column 220 are connected by the fixing pin 303 and are in the final locked state.

  As shown in FIG. 9, when the user pulls out the fixing pin 303 in the same manner as in the first embodiment, the drop-off prevention rib 340 moves from the main locking portion 117 to the temporary locking portion 116 on the locking extension 118. Move towards.

  When the drop-off prevention rib 340 reaches the temporary locking portion 116, the drop-off prevention rib 340 is locked by the temporary locking portion 116. At this time, the insertion pin 320 is completely extracted from the main hole 221 a and the sub hole 221 b of the support column 220 and the sub hole 115 b of the handrail part accommodating portion 114. On the other hand, the insertion pin 320 remains inserted into the main hole 115a of the handrail portion accommodating portion 114. In other words, the handrail portion accommodating portion 114 and the column 220 are not connected by the fixing pin 303, but are in a temporarily locked state where the fixing pin 303 is retained on the handrail portion accommodating portion 114.

  As described above, the connecting structure 30 for the handrail for bathtubs connects the handrail portion accommodating portion 114, the strut 220 coupled to the handrail portion accommodating portion 114, and the handrail portion accommodating portion 114 and the strut 220. And a fixing pin 303.

A main hole 115 a is formed in the handrail housing portion 114, and a main hole 221 a is formed in the column 220. The fixing pin 303 includes a cover 310, an insertion pin 320, an arm 330, and a drop prevention rib 340. The cover 310 covers the main hole 115a. The insertion pin 320 is formed so as to protrude from the cover 310, and is inserted into the main hole 115a and the main hole 221a of the handrail portion accommodating portion 114 and the column 220. Arm 330 is connected to cover 310 and extends along the direction in which insertion pin 320 extends. The drop-off prevention rib 340 is formed on the arm 330 and is locked on the handrail portion accommodating portion 114. The handrail accommodating portion 114 is formed between the temporary locking portion 116 and the main locking portion 117 that detachably locks the drop-off preventing rib 340, and between the temporary locking portion 116 and the main locking portion 117. Locking extension 118. The temporary locking portion 116 is disposed at a position closer to the main hole 115a as compared to the main locking portion 117. Distance _{D 12} between the end of the main hole 115a side of the main hole 115a side of the end portion and the locking portion 117 of the temporary locking portion 116 is a main aperture 221a of the depth _{D 7} or more struts 220 .

  By doing in this way, the handrail for bathtubs provided with the connection structure 30 with easy handling can be provided.

Moreover, in the connection structure 30 of the handrail for bathtubs, the handrail part accommodating part 114 has the subhole 115b formed in the position facing the main hole 115a. The distance between the end portion of the temporary locking portion 116 on the main hole 115 a side and the end portion of the main locking portion 117 on the main hole 115 a side is determined by the depth D ₇ of the main hole 115 a of the support column 220 and the end of the support column 220. a distance _{D 8} from the main aperture 221a to sub-ports 221b, the depth _{D 9} of the sub-ports 221b of the strut 220, the distance _{D 10} from the sub-ports 221b of the strut 220 to the sub-ports 115b of the handrail portion housing portion 114 is not less than the length of the sum of the depth _{D 11} of the sub-ports 115b of the handrail portion accommodating portion 114.

  In this way, the length of the insertion pin 320 is set to a length that penetrates both the main hole 115a and the sub hole 115b of the handrail portion accommodating portion 114, and the main hole 115a of the handrail portion accommodating portion 114 By inserting the insertion pin 320 into the sub hole 115b, the main hole 221a and the sub hole 221b of the support column 220, the handrail portion accommodating portion 114 and the support column 220 can be more firmly connected. Further, the fixing pin 303 can be locked onto the handrail portion accommodating portion 114 in a state where the connection between the support column 220 and the handrail portion accommodating portion 114 is released.

  Other configurations and effects of the handrail for bathtubs of the third embodiment are the same as those of the handrail 1 for bathtubs of the first embodiment.

(Fourth embodiment)
The handrail for bathtubs of 4th Embodiment is equipped with the structure substantially the same as the handrail for bathtubs of 3rd Embodiment.

  FIG. 10 is a cross-sectional view of the handrail for bathtubs according to the fourth embodiment, and shows a cross section having the same height as the cross-sectional view of the handrail for bathtubs according to the first embodiment shown in FIG. The handrail for bathtubs of 4th Embodiment is mainly the handrail part 200 (FIG. 2), the main body 100 (FIG. 2) as a main-body part, and the connection structure 40 similarly to the handrail for bathtubs of 1st Embodiment. With. The handrail portion 200 includes an upper grip 210 as a handle portion and two struts 220 as a second member.

As shown in FIGS. 10 and 11, the connection structure 40 of the handrail for bathtubs of the fourth embodiment is different from the connection structure 10 of the handrails for bathtubs of the first embodiment (FIG. 3). Similar to the embodiment, the support column 220 has a plurality of main holes 221a and sub holes 221b formed along the axis. The main hole 221a and the sub hole 221b are formed at both ends of the diameter of the support column 220 and face each other. The main hole 221a is an example of an engagement hole, and the sub hole 221b is an example of a sub engagement hole. Main aperture 221a has a depth _{D 7,} a distance of sub-ports 221b depth _{D 9,} the main hole 221a to sub-ports 221b, i.e., the inner diameter of the post 220 is formed of the diameter _{D 8.}

Moreover, in the handrail for bathtubs of 4th Embodiment, the main hole 115a and the subhole 115b are formed in the handrail part accommodating part 114 similarly to 3rd Embodiment. The main hole 115a and the sub hole 115b are formed at both ends of the cylindrical inner diameter of the handrail portion accommodating portion 114 and face each other. In this embodiment, the sub-hole 115b is a recess formed on the inner wall surface of the handrail portion accommodating portion 114, and does not penetrate the wall surface of the handrail portion accommodating portion 114. The main hole 115a is an example of an engagement hole, and the sub hole 115b is an example of a sub engagement hole. Sub-ports 115b are formed to a size of the depth _{D 11.} In handrail of this embodiment, between the sub-ports 115b of the sub-ports 221b and handrail portion accommodating portion 114 of the strut 220, the gap distance _{D 10} of it is formed.

  The connection structure 40 of the handrail for bathtubs of 4th Embodiment is different from the connection structure 30 of 3rd Embodiment. The handrail part accommodating part 114 has a pair of locking parts as a 1st member side locking part. 119 and a pair of locking extensions 118a are formed as flat portions. The locking part 119 is formed on the outer peripheral surface of the handrail part accommodating part 114 as a convex part protruding with respect to the locking extension part 118a.

  The length of the insertion pin 320 of the fixing pin 304 is such that when the fixing pin 304 is attached to the handrail portion accommodating portion 114, the main hole 221 a and the sub hole 221 b of the support column 220 and the main hole 115 a of the handrail portion accommodating portion 114. And a length to be completely inserted into all of the sub-holes 115b. The arm 330 is longer than the arm 330 of the first embodiment, and the fixing pin 304 is formed in a U shape as a whole. The length of the arm 330 may be designed as appropriate.

Further, the pair of arms 330 of the fixing pin 304 has a main locking rib 341 as a connecting portion side main locking portion, a temporary locking rib 342 as a connecting portion side temporary locking portion, and a slip prevention rib 350, respectively. Is formed. And the end portion of the cover 310 side of the locking rib 341, the distance _{D 13} between the end portion of the cover 310 side of the temporary locking rib 342, the depth _{D 7} and sub-ports 221b of the main aperture 221a of the strut 220 Depth D ₉ , diameter D ₈ of the column 220, distance D ₁₀ from the sub hole 221 b of the column 220 to the sub hole 115 b of the handrail housing portion 114, and the depth D ₁₁ of the sub hole 115 b It is formed to be a size. In this embodiment, the cover 310 and the arm 330 are integrally formed. The cover 310 and the arm 330 may be formed by separate members and fixed to each other, for example. The anti-slip ribs 350 are formed on both sides of the cover 310 on the distal end side of the arm 330 with respect to the cover 310. The anti-slip rib 350 is a protrusion protruding toward the opposite side of the insertion pin 320. The anti-slip rib 350 is preferably formed between the cover 310 and the temporary locking rib 342, and more preferably formed between the cover 310 and the main locking rib 341.

  In the state shown in FIG. 10, the insertion pin 320 is completely inserted into all of the main hole 221 a and the sub hole 221 b of the support column 220, and the main hole 115 a and the sub hole 115 b of the handrail part accommodating portion 114. In this state, the handrail portion accommodating portion 114 and the column 220 are connected by the fixing pin 304 and are in the final locked state.

  As shown in FIG. 12, when the user pulls out the fixing pin 304 in the same manner as in the first embodiment, the temporary locking rib 342 moves toward the locking portion 119 on the locking extension 118a.

  When the temporary locking rib 342 reaches the locking portion 119, the temporary locking rib 342 is locked by the locking portion 119. At this time, the insertion pin 320 is completely extracted from the main hole 221 a and the sub hole 221 b of the support column 220 and the sub hole 115 b of the handrail part accommodating portion 114. On the other hand, the insertion pin 320 remains inserted into the main hole 115a of the handrail portion accommodating portion 114. That is, the handrail portion accommodating portion 114 and the column 220 are not connected by the fixing pin 304, but are in a temporarily locked state where the fixing pin 304 is locked on the handrail portion accommodating portion 114.

  As described above, the connection structure 40 of the handrail for bathtubs according to the fourth embodiment includes the handrail portion accommodating portion 114, the strut 220 coupled to the handrail portion accommodating portion 114, the handrail portion accommodating portion 114, and the strut. 220 and a fixing pin 304 that connects to 220.

A main hole 115a and a main hole 221a are formed in the handrail portion accommodating portion 114 and the column 220, respectively. The fixing pin 304 includes a cover 310, an insertion pin 320, an arm 330, a temporary locking rib 342 and a main locking rib 341. The cover 310 covers the main hole 115a and the main hole 221a. The insertion pin 320 is formed so as to protrude from the cover 310 and is inserted into the main hole 115 a of the handrail portion accommodating portion 114 and the main hole 221 a of the column 220. The arm 330 is connected to the cover 310 and extends along the direction in which the insertion pin 320 extends. The temporary locking rib 342 and the main locking rib 341 are formed on the arm 330 and locked on the handrail portion accommodating portion 114. The handrail portion accommodating portion 114 includes a locking portion 119 that detachably locks the temporary locking rib 342 and the main locking rib 341, and a locking extension portion 118a formed adjacent to the locking portion 119. Including. The locking extension portion 118 a is formed at a position farther from the main hole 115 a than the locking portion 119. The main locking rib 341 is disposed closer to the cover 310 than the temporary locking rib 342. The distance between the end portion of the cover 310 side at the end and temporary engagement ribs 342 of the cover 310 side at the full locking rib 341 is the depth _{D 7} or more main aperture 221a.

  In the connection structure 40 configured as described above, the handrail portion accommodating portion 114 and the column 220 are connected as follows. First, the main hole 115a and the main hole 221a are aligned. Next, the insertion pin 320 protruding from the cover 310 is inserted into the main hole 115a and the main hole 221a so that the cover 310 of the fixing pin 304 covers the main hole 115a and the main hole 221a. An arm 330 extends from the cover 310 of the fixing pin 304. The arm 330 extends along the direction in which the insertion pin 320 extends, and the arm 330 is formed with a temporary locking rib 342 and a main locking rib 341. By inserting the insertion pin 320 into the main hole 115a and the main hole 221a from outside the handrail housing portion 114 and the support column 220, the temporary locking rib 342 and the main locking rib 341 of the arm 330 are connected to each other. Outside the hole 115a and the main hole 221a, the insertion pin 320 is moved in the insertion direction.

  The main locking rib 341 of the fixing pin 304 is disposed at a position closer to the cover 310 than the temporary locking rib 342. When the fixing pin 304 is moved in the direction in which the insertion pin 320 is inserted outside the main hole 115a and the main hole 221a, first, the temporary locking rib 342 reaches the position of the locking portion 119. Although the temporary locking rib 342 can be locked to the locking portion 119, the temporary locking rib 342 can be locked by further inserting the insertion pin 320 toward the inside of the main hole 115a and the main hole 221a. It is moved from the portion 119 toward the locking extension 118a. The locking extension portion 118 a is formed adjacent to the locking portion 119 and at a position farther from the main hole 115 a than the locking portion 119. Therefore, when the temporary locking rib 342 moves past the locking portion 119 and away from the main hole 115a, the portion adjacent to the locking portion 119 in the handrail portion housing portion 114 is a curved surface or an uneven surface. Compared with the case where it is formed, it is not necessary to greatly deform the arm 330 on which the main locking rib 341 and the temporary locking rib 342 are formed.

  When the insertion pin 320 is further inserted toward the inside of the main hole 115a and the main hole 221a, the main locking rib 341 then reaches the position of the locking portion 119. The main locking rib 341 is locked to the locking portion 119.

  The length of the insertion pin 320 is appropriately designed. For example, the length of the insertion pin 320 is such that when the main locking rib 341 is locked to the locking portion 119, the end of the insertion pin 320 opposite to the cover 310 is completely inserted into the main hole 221a. Can be designed.

  Next, an operation for releasing the connection between the handrail housing portion 114 and the column 220 will be described. When the fixing pin 304 is moved in the direction in which the insertion pin 320 is extracted from the main hole 115a and the main hole 221a, first, the main locking rib 341 is released from the locking portion 119. On the other hand, the temporary locking rib 342 moves on the locking extension 118a. Therefore, compared with the case where the portion adjacent to the locking portion 119 is formed with a curved surface or an uneven surface at a position farther from the main hole 115a of the handrail portion accommodating portion 114 than the locking portion 119, the temporary locking rib. It is not necessary to greatly deform the arm 330 on which the 342 and the main locking rib 341 are formed.

  The distance between the end on the cover 310 side in the temporary locking rib 342 and the end on the cover 310 side in the main locking rib 341 is equal to or greater than the depth of the main hole 221a. Therefore, for example, when the length of the insertion pin 320 is designed as described above, the main locking rib 341 is engaged with the locking portion 119 when the insertion pin 320 is completely inserted into the main hole 221a. When it is stopped and the temporary locking rib 342 is locked to the locking portion 119, the insertion pin 320 can be completely removed from the main hole 221a. In a state where the insertion pin 320 is completely pulled out from the main hole 221a, the handrail portion accommodating portion 114 and the column 220 are not connected.

  When the fixing pin 304 is further moved, the temporary locking rib 342 reaches a position where the locking pin 119 is locked. For example, when the length of the insertion pin 320 is designed as described above, when the temporary locking rib 342 is locked to the locking portion 119, the insertion pin 320 is completely removed from the main hole 221a. It is in the state.

  As described above, the temporary locking rib 342 of the fixing pin 304 is engaged when the insertion pin 320 is completely pulled out from the main hole 221a, that is, in a state where the handrail housing portion 114 and the column 220 are not connected. Locked to the stop 119. By doing so, when the positional relationship between the handrail portion accommodating portion 114 and the column 220 is adjusted by releasing the connection between the handrail portion accommodating portion 114 and the column 220, the fixing pin 304 is accommodated in the handrail portion. It is removed from both the portion 114 and the column 220 and is not lost.

  Further, the locking extension 118 a is formed adjacent to the locking portion 119 and further from the main hole 115 a than the locking portion 119, so that the temporary locking rib 342 is engaged with the locking portion 119. When the fixing pin 304 is moved from the stopped position to the position where the main locking rib 341 is locked to the locking portion 119, the deformation of the arm 330 can be reduced as compared with the conventional case. Further, when the fixing pin 304 is moved from the position where the main locking rib 341 is locked to the locking portion 119 to the position where the temporary locking rib 342 is locked to the locking portion 119, the arm 330 is deformed. It can be reduced as compared with the prior art.

Moreover, in the connection structure 40 of the handrail for bathtubs of 4th Embodiment, the handrail part accommodating part 114 is a cylinder with a relatively large internal diameter, and the support | pillar 220 is a cylinder with a relatively small internal diameter. The support column 220 is accommodated inside the handrail portion accommodating portion 114 so as to be slidable inside the handrail portion accommodating portion 114. The column 220 has a sub-hole 221b formed at a position facing the main hole 221a. The insertion pin 320 is formed to have a length that penetrates both the main hole 221a and the sub hole 221b. Distance _{D 13} between the end portion of the cover 310 side at the end and temporary engagement ribs 342 of the cover 310 side at the full locking rib 341, the depth _{D 7} of the main aperture 221a, sub-ports from the main hole 221a a distance _{D 8} to 221b, is equal to or greater than the length of the sum of the depth _{D 9} of the sub-ports 221b.

  By doing so, the length of the insertion pin 320 is set to a length that penetrates both the main hole 221a and the sub hole, and the insertion pin 320 is inserted into the main hole 221a and the sub hole to accommodate the handrail portion. The portion 114 and the column 220 can be more firmly connected. Further, the fixing pin 304 can be locked onto the handrail portion accommodating portion 114 in a state where the connection between the support column 220 and the handrail portion accommodating portion 114 is released.

Moreover, in the connection structure 40 of the handrail for bathtubs of 4th Embodiment, the handrail part accommodating part 114 is formed with the subhole 115b in the position facing the main hole 115a. Distance _{D 13} between the end portion of the cover 310 side at the end and temporary engagement ribs 342 of the cover 310 side at the full locking rib 341, the depth _{D 7} of the main aperture 221a, sub-ports from the main hole 221a a distance _{D 8} to 221b, and the depth _{D 9} of the sub-ports 221b, the distance _{D 10} from the sub-ports 221b to sub-ports 115b, is equal to or greater than the length of the sum of the depth _{D 11} of the sub-ports 115b.

  In this way, the length of the insertion pin 320 is made to penetrate both the main hole 115a and the sub hole 115b, and the main hole 115a, the sub hole 115b, the main hole 221a, and the sub hole 221b are formed. The insertion pin 320 can be inserted, and the handrail part accommodating part 114 and the support | pillar 220 can be connected more firmly. Further, the fixing pin 304 can be locked onto the handrail portion accommodating portion 114 in a state where the connection between the support column 220 and the handrail portion accommodating portion 114 is released.

  Other configurations and effects of the bathtub handrail of the fourth embodiment are the same as those of the bathtub handrail of the third 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, 10, 20, 30, 40: Connection structure, 100: Main body, 114: Handrail housing portion, 115: Hole, 115a: Main hole, 115b: Sub-hole, 116: Temporary locking portion 117: Main locking portion, 118, 118a: Locking extension portion, 119: Locking portion, 200: Handrail portion, 210: Upper grip, 220: Support column, 221: Hole, 221a: Main hole, 221b: Sub-hole, 301, 302, 303, 304: fixing pin, 310: cover, 320: insertion pin, 330: arm, 340: drop-off prevention rib, 341: main locking rib, 342: temporary locking rib, 400: fixing nut.

Claims (9)

A first member;
A second member coupled to the first member;
A connecting portion that connects the first member and the second member;
An engagement hole is formed in each of the first member and the second member,
The connecting portion includes a covering portion that covers the engaging hole, an insertion portion that is formed to protrude from the covering portion and is inserted into the engaging hole between the first member and the second member, and the covering An arm portion that is connected to a portion and extends along a direction in which the insertion portion extends, and a connecting portion side locking portion that is formed on the arm portion and locked on the first member,
The first member includes a first member-side temporary locking portion, a first member-side main locking portion, a first member-side temporary locking portion, and the first member-side temporary locking portion that detachably lock the connecting portion-side locking portion. Including a plane portion formed between the first member side main locking portion,
The first member side temporary locking portion is disposed at a position closer to the engagement hole of the first member than the first member side temporary locking portion,
The distance between the engagement hole side end portion of the first member in the first member side temporary engagement portion and the engagement hole side end portion of the first member in the first member side main engagement portion. Is greater than or equal to the depth of the engagement hole of the second member , and
The first member is a cylinder having a relatively large inner diameter,
The second member is a cylinder having a relatively small inner diameter,
The second member is accommodated inside the first member so as to be slidable inside the first member,
The second member has a sub-engagement hole formed at a position facing the engagement hole of the second member,
The distance between the engagement hole side end portion of the first member in the first member side temporary engagement portion and the engagement hole side end portion of the first member in the first member side main engagement portion. Is the total length of the depth of the engagement hole of the second member, the distance from the engagement hole of the second member to the sub-engagement hole, and the depth of the sub-engagement hole of the second member Is a connected structure. The connecting part side locking part is a convex part,
The first member-side temporary locking portion is a recess formed on the outer surface of the first member,
2. The connection structure according to claim 1, wherein the depth of the concave portion has an inclined surface such that the depth becomes shallower in a direction farther from a side closer to the engagement hole of the first member. The first member has a sub-engagement hole formed at a position facing the engagement hole of the first member,
The distance between the engagement hole side end portion of the first member in the first member side temporary engagement portion and the engagement hole side end portion of the first member in the first member side main engagement portion. The depth of the engagement hole of the second member, the distance from the engagement hole of the second member to the sub-engagement hole, the depth of the sub-engagement hole of the second member, and the depth of the second member 3. The connection structure according to claim 1 , wherein the connection structure is not less than a total length of a distance from the sub-engagement hole to the sub-engagement hole of the first member and a depth of the sub-engagement hole of the first member. . A first member;
A second member coupled to the first member;
A connecting portion that connects the first member and the second member;
An engagement hole is formed in each of the first member and the second member,
The connecting portion includes a covering portion that covers the engaging hole, an insertion portion that is formed to protrude from the covering portion and is inserted into the engaging hole between the first member and the second member, and the covering An arm portion that is connected to a portion and extends along a direction in which the insertion portion extends, a connecting portion-side temporary locking portion that is formed on the arm portion and is locked on the first member, and a connecting portion-side main locking Including
The first member is adjacent to the first member side locking portion and a first member side locking portion that detachably locks the connecting portion side temporary locking portion and the connecting portion side main locking portion. And a flat portion formed at a position farther from the engagement hole than the first member side locking portion,
The connecting portion side main locking portion is disposed at a position close to the covering portion compared to the connecting portion side temporary locking portion,
The distance between the end portion on the covering portion side in the connecting portion side main engaging portion and the end portion on the covering portion side in the connecting portion side temporary engaging portion is the depth of the engaging hole of the second member. More than that , and
The first member is a cylinder having a relatively large inner diameter,
The second member is a cylinder having a relatively small inner diameter,
The second member is accommodated inside the first member so as to be slidable inside the first member,
The second member has a sub-engagement hole formed at a position facing the engagement hole of the second member,
The distance between the end portion on the covering portion side in the connecting portion side main engaging portion and the end portion on the covering portion side in the connecting portion side temporary engaging portion is the depth of the engaging hole of the second member. And a connection structure that is equal to or greater than the total length of the distance from the engagement hole of the second member to the sub-engagement hole and the depth of the sub-engagement hole of the second member . The first member has a sub-engagement hole formed at a position facing the engagement hole of the first member,
The distance between the end portion on the covering portion side in the connecting portion side main engaging portion and the end portion on the covering portion side in the connecting portion side temporary engaging portion is the depth of the engaging hole of the second member. The distance from the engagement hole of the second member to the sub-engagement hole, the depth of the sub-engagement hole of the second member, and the sub-engagement of the first member from the sub-engagement hole of the second member The connection structure according to claim 4 , wherein the connection structure is equal to or longer than a total length of a distance to the joint hole and a depth of the sub-engagement hole of the first member. The connection structure according to any one of claims 1 to 5 , wherein a plurality of the engagement holes are formed in the second member. A handrail including a handle,
A main body part arranged on the side wall of the bathtub to support the handrail part;
The connecting structure according to any one of claims 1 to 6 , comprising:
The first member is disposed on the main body;
The said 2nd member is the handrail for bathtubs arrange | positioned at the said handrail part, and being fixed to the said handle part. The handrail for bathtubs of Claim 7 provided with the fixing | fixed part which fixes the said handrail part to the said main-body part. The handrail for a bathtub according to claim 8 , wherein the fixing portion is disposed between the handrail portion and an upper surface of the main body portion.

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