JP2008019583A - Coupler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coupler fixable to a wall surface, by easily connecting mutual handrail members constituting a deformed handrail, with a relatively simple structure. <P>SOLUTION: This coupler 10 has a cross-sectional circular elbow part 14 for connecting and fixing two handrail members 11 having a cross section 11a of a deformed shape in a projecting corner part 12 of a building and having a bracket 13 for fixing the coupler 10 to the wall surface 12a, and two conversion adapters 15x and 15y for respectively connecting an end part 11b of the handrail members 11 to an end part 14a of the elbow part 14. A recessed locking part fittable with the end part 11b of the handrail member 11, is arranged in one end part of the conversion adapters 15x and 15y. A projecting locking part 15b fittable with a circular opening part 14b opened in the end part 14a of the elbow part 14, is arranged in the other end part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connecting device that constitutes a handrail installed on a wall surface of a staircase or a corridor of a general house or public facility.

  In recent years, there have been an increasing number of cases where handrails are installed on stairs and corridors in ordinary houses in order to reduce the physical burden when elderly people or people with disabilities walk in the room or to ensure safety. Yes. Conventional handrails have a circular cross section. However, recently, a handrail that has a different cross section has been proposed as a handrail that is easy to grip and conform to the hand (for example, Non-Patent Document 1). reference.).

Totoki Co., Ltd., “Handrail catalog”, September 2005, p55-p67

  In the case of a handrail with a circular cross-section (hereinafter referred to as “circular handrail”), the connecting device used when connecting handrail members that are actually gripped by the hand and fixing them to the wall of the building Various types have been developed. Therefore, the handrail attaching operation is relatively easy by using these connecting devices. Moreover, if the handrail member which comprises a circular handrail matches the size of the radial direction, a joint tool can also be shared.

  However, in the case of a handrail having a deformed cross section (hereinafter referred to as “unshaped handrail”), a connecting device for a circular handrail cannot be used as it is, and thus a dedicated connecting device must be prepared. However, since there are various structures such as stairs and corridors depending on the building, in order to attach handrails according to the situation of the construction site, a very large number of types of connecting devices are required. Further, the connecting device for the handrail of the odd shape tends to lead to a complicated structure, and it is difficult to share the parts.

  The problem to be solved by the present invention is to provide a connecting device that has a relatively simple structure and can easily connect handrail members constituting a deformed handrail and fix them to a wall surface.

  The connecting member of the present invention is a connecting device for connecting and fixing two handrail members having a different cross section at a corner of a building, and includes a bracket for fixing the connecting device to a wall surface. An elbow portion having a circular surface and a conversion adapter for connecting an end portion of the handrail member to an end portion of the elbow portion are provided. Here, the irregular shape refers to a graphic displayed as a closed curve, excluding a point symmetric graphic such as a circle, an ellipse, and a polygon, a line symmetric graphic, and a rotationally symmetric graphic.

  With such a configuration, the end of the handrail member having an irregular cross section (hereinafter referred to as “an irregular handrail member”) can be connected to an elbow portion having a circular cross section via a conversion adapter. It is possible to connect the deformed handrail members to each other at the elbow portion without using a connecting tool dedicated to the deformed handrail member, and to fix it to the wall surface via the bracket. Moreover, since it is comprised by the elbow part and the conversion adapter which have the said bracket, a structure is also comparatively simple. Furthermore, since the handrail member and the elbow part have different cross-sectional shapes, when a visually handicapped person moves while grasping the handrail member, the handrail when the hand moves from the handrail member to the elbow part at the corner part. It becomes possible to recognize that the traveling direction changes due to the change, which is effective in improving safety.

  Here, the conversion adapter is provided with a concave locking portion into which an end portion of the handrail member can be fitted, and a convex locking portion that can be fitted into an opening formed at an end portion of the elbow portion. Is desirable. With such a configuration, with respect to the two deformed handrail members to be connected, after inserting the end portion of the deformed handrail member into the recessed lock portion of the conversion adapter, the convex lock portion of the conversion adapter is connected to the elbow. Since the connection is completed by performing the operation of fitting into the opening of the part, the connection operation can be facilitated and speeded up.

  On the other hand, a through hole into which a screw inserted in a radial direction from the outer periphery of the opening of the elbow part can be screwed to fix the convex locking part of the conversion adapter fitted into the opening of the elbow part. It can also be provided on the outer periphery of the convex locking portion of the conversion adapter. With such a configuration, by screwing a screw inserted in the radial direction from the outer periphery of the elbow part into the through hole of the convex locking part of the conversion adapter fitted into the opening of the elbow part. The convex locking portion of the conversion adapter fitted into the opening of the elbow portion can be securely fixed. Moreover, if the screw | thread is loosened as needed and it is made to detach | leave from a through-hole, the convex latching | locking part of a conversion adapter can also be removed from the opening part of an elbow part.

  On the other hand, in order to fix the convex locking part of the conversion adapter fitted in the opening of the elbow part, a circumferential groove in which a screw screwed in a radial direction from the outer periphery of the opening of the elbow part can be pressed It can also be provided on the outer periphery of the convex locking portion of the conversion adapter. With such a configuration, a screw screwed in the radial direction from the outer periphery of the elbow portion is pressed against the circumferential groove of the convex locking portion of the conversion adapter fitted into the opening of the elbow portion. The convex locking portion of the conversion adapter fitted into the opening of the elbow portion can be securely fixed. Moreover, if the screw is loosened as necessary, the convex locking portion of the conversion adapter can be detached from the opening of the elbow portion.

  In addition, as a means to fix the convex locking part of the conversion adapter inserted in the opening part of the elbow part, the method of screwing the screw into the through hole provided in the convex locking part described above, and the convex shape A system in which a screw is pressed into a circumferential groove provided in the locking portion can also be provided. In this case, it is desirable to provide a circumferential groove in a region including the through hole provided in the convex locking portion.

  Furthermore, the cross-sectional shape of the concave locking portion of the conversion adapter can be matched with the cross-sectional shape of the handrail member. With such a configuration, the irregular handrail member can be more reliably fixed to the concave locking portion of the conversion adapter, and there is no possibility that the irregular handrail member held by the user rotates.

  According to the present invention, it is possible to provide a connecting device that has a relatively simple structure and can easily connect handrail members constituting an odd-shaped handrail and fix them to a wall surface.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view showing a use state of a connecting device according to a first embodiment of the present invention, FIG. 2 is a plan view of the connecting device shown in FIG. 1, FIG. 3 is a sectional view taken along line AA in FIG. FIG. 5 is an exploded perspective view of the connecting device shown in FIG. 1, and FIG. 5 is a partially enlarged view of FIG.

  As shown in FIGS. 1 to 5, the connecting device 10 according to the present embodiment connects and fixes two handrail members 11 having a deformed cross section 11 a at a convex corner portion 12 of a building. Two conversions for connecting the elbow part 14 having a circular cross section with a bracket 13 for fixing the instrument 10 to the wall surface 12a and the end part 11b of the handrail member 11 to the end part 14a of the elbow part 14, respectively. Adapters 15x and 15y. One end of the conversion adapters 15x and 15y is provided with a concave locking portion 15a into which the end portion 11b of the handrail member 11 can be fitted, and the other end portion is opened at the end portion 14a of the elbow portion 14. A convex locking portion 15b that can be fitted into the circular opening 14b is provided.

  Moreover, in order to fix the convex locking part 15b of the conversion adapter 15 fitted in the opening part 14b of the elbow part 14, the tip part of the screw N1 screwed in the radial direction from the outer periphery of the opening part 14b of the elbow part 14 Is provided on the outer periphery of the convex locking portion 15 b of the conversion adapter 15. Further, a screw hole 15d penetrating the convex locking portion 15b in the radial direction is formed at the lowermost portion of the convex locking portion 15b. As shown in FIG. 3, the elbow portion 14 is formed by tightening an upper cover 14s and a lower cover 14t that can be divided into upper and lower portions with a screw N2, and is formed on the upper end portion 13a of the bracket 13 inserted from the lower surface of the lower cover 14t. The elbow portion 14 is fixed to the bracket 13 by screwing the screw N3. The bracket 13 has a convex corner by attaching a mounting portion 13b formed at the lower end of the bracket 13 to the convex corner 12 and screwing a plurality of screws N4 from the surface side of the convex corner 12 to the wall 12a. It is fixed to the part 12.

  Here, the conversion adapters 15x and 15y will be described with reference to FIGS. 6 and 7 are perspective views showing the conversion adapter 15y, FIG. 8 is a front view showing the conversion adapter 15x, and FIG. 9 is a sectional view taken along line BB in FIG. Since the two conversion adapters 15x and 15y have a mirror-symmetrical structure, the descriptions regarding the conversion adapters 15x and 15y are common to each other.

  As shown in FIGS. 6 to 9, a concave locking portion 15 a is provided at one end of the conversion adapters 15 x and 15 y, and a convex locking that can be fitted into a circular opening 14 b at the other end. A portion 15b is provided. The convex locking portion 15 b has a substantially cylindrical shape having a cavity 15 e inside, and the inner cross-sectional shape of the concave locking portion 15 a matches the shape of the horizontal cross-section 11 a of the handrail member 11. A partition wall 15f is provided between the concave locking portion 15a and the convex locking portion 15b, and a penetrating screw hole 15g is formed in the partition wall 15f.

  Here, based on FIG. 4, FIG. 5, the procedure which connects the two irregular shaped handrail members 11 using the connection tool 10, and fixes to the convex-shaped corner part 12 is demonstrated. First, as shown in FIG. 2, the elbow part 14 is attached to the bracket 13 fixed to the convex corner part 12 using a plurality of screws N4. Next, after inserting the end portions 11b of the two handrail members 11 into the concave locking portions 15a of the two conversion adapters 15x and 15y, the partition wall 15f is inserted into the cavity 15e on the convex locking portion 15b side. A screw N5 is inserted into the screw hole 15g and is screwed to the end portion 11b of the odd-shaped handrail member 11. Accordingly, the conversion adapters 15x and 15y are fixed to the end portions 11b of the two odd-shaped handrail members 11, respectively.

  Next, after fitting the convex locking portions 15b of the conversion adapters 15x and 15y into the opening portions 14b of the elbow portions 14, respectively, as shown in FIG. The screw N1 is inserted into the opened screw hole 14h. Then, the screw N1 is screwed into the screw hole 15d of the convex locking portion 15b of the conversion adapters 15x and 15y from the screw hole 14h. Thus, the end portions 11b of the two odd-shaped handrail members 11 are connected to the elbow portion 14 via the conversion adapters 15x and 15y, respectively. By taking the procedure as described above, the two odd-shaped handrail members 11 are connected to each other via the connecting device 10 and fixed to the convex corner portion 12.

  Thus, if the connection tool 10 is used, the edge part 11b of the odd-shaped handrail member 11 can be connected with the opening part 14b of the elbow part 14 whose cross section was circular shape via the conversion adapters 15x and 15y. Therefore, the handrail members 11 can be connected to each other by the elbow portion 14 without using a connecting tool dedicated to the handrail member, and can be fixed to the wall surface 12 a via the bracket 13. Moreover, since the connection tool 10 can be comprised by the elbow part 14 which has the bracket 13, and the two conversion adapters 15x and 15y, a structure is also comparatively simple. Furthermore, since the handrail member 11 and the elbow part 14 have different cross-sectional shapes, when a visually handicapped person or the like moves while holding the handrail member 11 with his / her hand, the elbow handrail member 11 moves from the handrail member 11 to the convex corner part 12. It is possible to recognize that the advancing direction changes due to a change in the touch when the hand moves to the unit 14, which is effective in improving safety.

  In addition, since the conversion adapters 15x and 15y are provided with the concave locking portions 15a and the convex locking portions 15b, the concave locking of the conversion adapters 15x and 15y is performed on the two handrail members 11 to be connected. After the end 11b of the deformed handrail member 11 is fitted into the portion 15a, the projecting engagement portions 15b of the conversion adapters 15x and 15y are fitted into the opening 14b of the elbow portion 14, thereby connecting them. Is completed. For this reason, a connection operation can be performed easily and quickly.

  Further, in addition to the screw hole 15d in which the screw N1 inserted in the radial direction from the screw hole 14h on the outer periphery of the end portion 14a of the elbow part 14 can be screwed into the convex locking part 15b of the conversion adapters 15x and 15y. Similarly, there is provided a circumferential groove 15c to which a screw (not shown) screwed into the screw hole 14h can be pressed. The circumferential groove 15c is provided in a region including the screw hole 14h. Accordingly, a method of screwing the screw N1 into the screw hole 15d provided in the convex locking portion 15b or a method of pressing a screw (not shown) in the circumferential groove 15c provided in the convex locking portion 15b is selectively used. Any of the methods can be employed, and the convex locking portions 15b of the conversion adapters 15x and 15y fitted into the opening 14b of the elbow portion 14 can be reliably fixed. Moreover, if the screw | thread N1 is loosened as needed, the convex-shaped latching | locking part 15b of the conversion adapters 15x and 15y can also be detached from the opening part 14b of the elbow part 14. FIG.

  Moreover, since the cross-sectional shape of the inner periphery of the concave locking portion 15a of the conversion adapters 15x and 15y matches the cross-sectional shape 11a of the handrail member 11, the concave locking portions 15a of the conversion adapters 15x and 15y The deformed handrail member 11 can be securely fixed, and there is no possibility that the deformed handrail member 11 held by the user rotates.

  Next, a second embodiment of the present invention will be described with reference to FIGS. 10 is a perspective view showing a use state of the connecting device according to the second embodiment of the present invention, FIG. 11 is a front view of the connecting device shown in FIG. 10, FIG. 12 is a sectional view taken along line CC in FIG. Is an exploded perspective view of the connecting device shown in FIG. 10, and FIG. 14 is a partially enlarged view of FIG. 10 to 14, the parts denoted by the same reference numerals as those shown in FIGS. 1 to 9 are the parts having the same structure and function as the constituent parts of the connecting device 10, and thus the description thereof is omitted.

  As shown in FIG. 10, the connecting device 20 of the present embodiment is for connecting and fixing two deformed handrail members 11 in an inclined state at the concave corner portion 22 of the building. As shown in FIGS. 10 to 12, the connecting device 20 includes an elbow portion 24 having a circular cross section having a bracket 23 for fixing the connecting device 20 to the wall surface 22 a, and an end portion 24 a of the elbow portion 24. An auxiliary connecting member 25 having a substantially circular cap shape attached to the opening 24b via a screw N6 so as to be tiltable, and an end 11b of the handrail member 11 connected to the opening 25a of the auxiliary connecting member 25, respectively. Two conversion adapters 15x and 15y are provided.

  When two deformed handrail members 11 are connected and fixed at the concave corner portion 22 of the building using the connecting device 20, as shown in FIGS. 13 and 14, first, the openings 24b of both end portions 24a are respectively provided in the openings 24b. The elbow portion 24 is fixed to the concave corner portion 22 with the auxiliary connecting member 25 attached. Next, the convex locking portions 15b of the conversion adapters 15x and 15y attached to the end portion 11b of the handrail member 11 are fitted into the openings 25a of the auxiliary connecting member 25, respectively, and screw holes 25b on the outer periphery of the auxiliary connecting member 25 are inserted. A plurality of screws N7 are screwed in the radial direction from the tip, and the tip of the screw N7 is brought into pressure contact with the circumferential groove 15c of the convex locking portion 15b. Thereby, since the conversion adapters 15x and 15y are respectively fixed to the opening 25a of the auxiliary connecting member 25, the two odd-shaped handrail members 11 are connected and fixed to the concave corner portion 22 of the building.

  Since the connecting device 20 includes the auxiliary connecting members 25 that are attached to the openings 24b of the end portions 24a of the elbow portions 24 so as to be tiltable, by adjusting the inclination angle of the auxiliary connecting members 25, two connecting devices 20 are provided. The deformed handrail member 11 can be fixed at an inclination angle corresponding to the situation at the construction site. Therefore, it is suitable for installing handrails at corners such as stairs and slopes where the traveling direction changes.

  The connecting device of the present invention can be widely used as a component of a handrail installed on a wall such as a staircase or a corridor in a general house or public facility.

It is a perspective view which shows the use condition of the coupling device which is 1st Embodiment of this invention. It is a top view of the connection instrument shown in FIG. It is the sectional view on the AA line in FIG. It is a disassembled perspective view of the connection instrument shown in FIG. FIG. 5 is a partially enlarged view of FIG. 4. It is a perspective view of the conversion adapter which comprises the connection instrument shown in FIG. It is a perspective view of the conversion adapter which comprises the connection instrument shown in FIG. It is a front view of the conversion adapter which comprises the coupling instrument shown in FIG. It is the BB sectional view taken on the line in FIG. It is a perspective view which shows the use condition of the coupling device which is 2nd Embodiment of this invention. It is a front view of the connection instrument shown in FIG. It is CC sectional view taken on the line in FIG. It is a disassembled perspective view of the connection instrument shown in FIG. FIG. 14 is a partially enlarged view of FIG. 13.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,20 Connecting instrument 11 Abnormal handrail member 11a Cross section 11b, 14a, 24a End part 12 Convex corner part 12a, 22a Wall surface 13, 23 Bracket 13a Upper end part 13b Mounting part 14, 24 Elbow part 14b Opening part 14h, 15d, 15g Screw hole 14s Upper cover 14t Lower cover 15x, 15y Conversion adapter 15a Concave engaging part 15b Convex engaging part 15c Circumferential groove 15e Cavity 15f Bulkhead 22 Concave corner part 24b, 25a Opening part N1-N7 Screw

Claims (5)

A connecting device for connecting and fixing two handrail members having different cross-sections at a corner of a building,
An elbow portion having a circular cross section having a bracket for fixing the connecting device to the wall surface, and a conversion adapter for connecting the end portion of the handrail member to the end portion of the elbow portion. A connecting device.   The conversion adapter is provided with a concave locking portion into which an end portion of the handrail member can be fitted, and a convex locking portion that can be fitted into an opening provided at an end portion of the elbow portion. The connecting device according to claim 1.   The through hole into which a screw inserted in a radial direction from the outer periphery of the opening of the elbow part can be screwed in order to fix the convex locking part of the conversion adapter fitted in the opening of the elbow part. The connecting device according to claim 2, wherein the connecting device is provided on an outer periphery of the convex locking portion of the adapter.   In order to fix the convex locking portion of the conversion adapter fitted in the opening of the elbow part, the conversion is performed on the peripheral groove to which a screw screwed in a radial direction from the outer periphery of the opening of the elbow part can be pressed. The connecting device according to claim 2, wherein the connecting device is provided on an outer periphery of the convex locking portion of the adapter.   The connecting device according to any one of claims 1 to 4, wherein a cross-sectional shape of the concave locking portion of the conversion adapter is matched with a cross-sectional shape of the handrail member.

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