JP6339827B2 - Handrail connection - Google Patents

Description

  The present invention relates to a handrail connector.

  Conventionally, as shown in FIG. 5, when handrails 5 to 8 are continuously attached to the wall surfaces 4 of the lower stairs 1, the landing 2, and the upper stairs 3, the handrails 5 are wall surfaces according to the inclination angle of the lower stairs 1. 4 is fixed with a plurality of brackets (handrail attachments) 9. The handrails 6 and 7 are fixed to the wall surface 4 with a plurality of brackets 9 so as to be parallel to the landing 2. Furthermore, the handrail 8 is fixed to the wall surface 4 with a plurality of brackets 9 in accordance with the inclination angle of the upper staircase 3.

  The opposite ends of the handrails 5 and 6, the handrails 6 and 7, and the handrails 7 and 8 are respectively inserted into both sides of a connection tool (also called a joint corner or a flexible joint) 10 and fixed with screws. To do. Thereby, the handrails 5 and 6, the handrails 6 and 7, and the handrails 7 and 8 are respectively connected so that there is no gap (see Patent Document 1).

  Such a connector 10 is commercialized as a standard product. Further, the handrails 5 to 8 are shipped from the processing factory to the construction site in a state of being cut to a reference length calculated by a computer based on a design drawing of the house.

  By the way, the wall surface 4 to which the handrails 5 to 8 are attached is often not finished according to the design drawing due to a shift in construction or the like, and the handrails 5 to 8 cut to the reference length cannot be used as they are. is there.

  For this reason, usually, the long handrails 5 and 8 are attached first, and then the short handrails 6 and 7 connected by the corner connecting tool 10 are attached, so that the length of the handrails 6 and 7 is reduced on site. It is designed to adjust by cutting.

Utility Model Registration No. 3167437

  However, there has been a problem that construction workability is extremely deteriorated due to handrail cutting work on site.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a handrail connection tool that eliminates the need for a handrail cutting operation at the site and makes construction workability very good. Is.

In order to solve the above-described problems, the present invention provides a connection device for connecting a handrail that connects an end portion of a first handrail and an end portion of a second handrail. And a second movable member having an insertion portion for inserting and fixing the end portion of the second handrail, and connecting the first movable member and the second movable member on the opposite side of the insertion portion. face, with opposite substantially plane face-to-face, on the connection surface includes a concave portion and the convex portion of the fitting is relatively formed, the feed write in the inside of the saw unit, the plugged in handrail end A pressing plate with which the portion abuts, and a biasing member that is interposed between the bottom of the insertion portion and the pressing plate and presses the end portion of the handrail outwardly through the pressing plate. The biasing member is a conical coil spring, and the end on the large diameter side faces the pressing plate side. It is disposed to.

  According to the present invention, the urging member that presses the end of the inserted handrail outward is provided inside each insertion portion of the first movable member and the second movable member.

  Therefore, when using the handrail of the reference length, it is assumed that the connecting tools facing each other are installed at intervals wider than the reference interval. In this case, since the handrail of the reference length is short, the end of the inserted handrail is held in a state of being pushed outward by the urging force of the urging member. Thereby, it can adjust and connect so that it may match with the opposing connection tool constructed | assembled widely the space | interval, without replacing | exchanging it with a long handrail on the spot.

  On the other hand, it is assumed that the connecting tools facing each other are constructed at an interval narrower than the reference interval. In this case, since the handrail of the reference length is long, the inserted end of the handrail is held in a state where it is pushed inward against the urging force of the urging member. Thereby, it can adjust and connect so that it may match with the connecting tool with which the space | interval was constructed narrowly, without cutting the length of a handrail on the spot.

  That is, since the length of the handrail can be absorbed inside the connection tool, the handrail cutting work on the site is not required, and the workability is very good.

  In addition, the handrail is held at a position balanced in the axial direction by the urging force of the urging member between the connecting tools facing each other. Therefore, at the end of construction, when the end of the handrail whose final position in the axial direction is fixed to the insertion portion with a screw member, the end portions of both handrails are substantially the same as the screw fixing position of the insertion portion. Since it is located at an equal length, the fixing workability by the screw member is also improved.

The connection surface of the first movable member and the second movable member, together with the opposed substantially plane face-to-face, the connecting surface, is relatively formed with recesses and projections of the fitting.

Accordingly, the concave portion and the convex portion for fitting the first movable member and the second movable member are biased in the fitting direction by the reaction force of the biasing member, so that the first movable member and the second movable member are biased. The member can be easily attached with a biasing force. On the other hand, it can also be easily removed and anti-the biasing force. In addition, since the concave portion and the convex portion for fitting are always urged in the fitting direction, there is no gap on the connection surface between the first movable member and the second movable member, so that the continuity of the handrail is ensured. Appearance is good.
Further, since the conical coil spring can be compressed in a substantially flat state against the urging force, the storage space for the urging member in the insertion portion can be shortened.

The through hole in the bottom of the front Symbol spigot, the fitted movably in the axial direction of the handrail, further comprising a shank having a retaining part on the end portion of the connecting surface side, the pressing plate the is fixed to an end portion of the insertion portion side of the shaft portion, the shaft portion is formed a screw through holes, by inserting the screw member from the connection side into the screw through holes, wherein By screwing into the end portion of the handrail, the shaft portion and the pressing plate can be fixed to the end portion of the handrail together with the urging member.

According to this configuration, the shaft member and the pressing plate can be fixed together with the biasing member at the end portion of the handrail by inserting the screw member from the through hole for screw and screwing it into the end portion of the handrail. . Therefore, since the pressing plate moves together with the handrail, the adjustment movement of the handrail can be performed smoothly.

  According to the present invention, a handrail cutting operation or the like at the site is not necessary, and the construction workability is extremely good.

It is the connection tool which concerns on this invention, (a) is a front view, (b) is a side view. It is side surface sectional drawing of the connection tool in which a conical coil spring is in a reference position. It is side surface sectional drawing of the connection tool with which the conical coil spring extended from the reference position. It is side surface sectional drawing of the connection tool which the conical coil spring compressed from the reference position. It is the perspective view which attached the handrail continuously to the wall surface of stairs.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Note that parts having the same configuration and operation as those of the background art are denoted by the same reference numerals and detailed description thereof is omitted.

  1A and 1B show a connector 20, where FIG. 1A is a front view and FIG. 1B is a side view. FIG. 2 is a side sectional view of the connector 20 with the conical coil spring 27 in the reference position. FIG. 3 is a side sectional view of the connector 20 in which the conical coil spring 27 extends from the reference position. FIG. 4 is a side cross-sectional view of the connector 20 in which the conical coil spring 27 is compressed from the reference position.

  As shown in FIG. 1 and FIG. 2, the connecting tool 20 in which the angle of the first handrail 6 and the second handrail 7 is adjusted to 90 degrees is the end 6 a of the first handrail 6 and the end of the second handrail 7. The unit 7a is connected.

  The connection tool 20 includes a first movable member 21 and a second movable member 22, and each movable member 21, 22 is, for example, a die-cast molded product of zinc alloy or a molded product of synthetic resin. The slides 6 and 7 are made of, for example, wood, but are not limited to these materials.

  The first movable member 21 has a cylindrical insertion portion 21a that is inserted into the outer periphery of the end portion 6a of the first handrail 6, and a connection surface 21b that is inclined at approximately 45 degrees on the opposite side of the insertion portion 21a. have.

  The 2nd movable member 22 has the cylindrical insertion part 22a inserted in the outer periphery of the edge part 7a of the 2nd handrail 7, and the connection surface 22b inclined by about 45 degree | times is formed in the other side of this insertion part 22a. Have. In addition, the connection surface 21b of the 1st movable member 21 and the connection surface 22b of the 2nd movable member 22 are not restricted to inclination of about 45 degree | times, A right-angled plane may be sufficient.

  The connection surface 21b of the first movable member 21 and the connection surface 22b of the second movable member 22 are substantially facing each other. In this case, the first handrail 6 and the second handrail 7 are The angle is approximately 90 degrees.

  A concave portion 21c for fitting is formed on the outer peripheral side of the connection surface 21b of the first movable member 21, and a convex portion 22c for fitting is formed on the outer peripheral side of the connecting surface 22b of the second movable member 21.

  By fitting the concave portion 21c and the convex portion 22c, the connection surface 21b of the first movable member 21 and the connection surface 22b of the second movable member 22 are held without being displaced in the direction perpendicular to the axis, and the first movable member 21 is retained. And the rotation angle of the second movable member 21 can be adjusted. In addition, a convex part can be formed in the 2nd movable member 21, and a recessed part can also be formed in the 1st movable member 21. FIG.

  A through hole 21d is formed at the bottom of the insertion portion 21a of the first movable member 21, and a shaft portion 25 that is movable in the axial direction of the first handrail 6 is fitted into the through hole 21d. A retaining portion 25 a having a diameter larger than that of the shaft portion 25 is formed at the end portion of the shaft portion 25 on the connection surface 21 b side.

  A pressing plate 26 having a diameter slightly smaller than the inner diameter of the insertion portion 21a is fitted into the insertion portion 21a of the first movable member 21, and the end portion of the shaft portion 25 on the insertion portion 21a side is inserted into the pressing plate 26. Is fixed by the caulking portion 25b.

  A conical coil spring (biasing member) 27 is interposed between the bottom of the insertion portion 21a and the pressing plate 26 so as to be expandable and contractable in the axial direction. Therefore, when the end portion 6a of the first handrail 6 is not inserted into the insertion portion 21a, referring to FIG. 3, the position where the retaining portion 25a of the shaft portion 25 contacts the bottom of the insertion portion 21a. The conical coil spring 27 extends to the end. As a result, the pressing plate 26 is moved outward. The urging member may be a simple coil spring or an elastic body such as rubber instead of the conical coil spring 27.

  The wood screw member 28 is inserted into the screw through hole 25c of the shaft portion 25 from the connection surface 21b side, and is screwed into the end portion 6a of the first handrail 6 inserted into the insertion portion 21a. Thus, the shaft portion 25 and the pressing plate 26 are fixed to the end portion 6 a of the first handrail 6 together with the conical coil spring 27.

  And the edge part 6a of the 1st handrail 6 inserted in the insertion part 21a is pressed outside via the press board 26 with the urging | biasing force of the cone coil spring 27. As shown in FIG.

  Screw insertion for inserting a wood screw member (not shown) for fixing the end portion 6a of the first handrail 6 whose axial position is determined in the insertion portion 21a is near the end portion on the insertion side of the insertion portion 21a. A hole 21e is formed.

  The same applies to the second movable member 22, and a shaft portion 25 that is movable in the axial direction of the second handrail 7 is fitted into the through hole 22 d. A pressing plate 26 is fitted into the insertion portion 22a of the second movable member 22, and an end portion of the shaft portion 25 on the insertion portion 21a side is fixed by a caulking portion 25b.

  A conical coil spring 27 is interposed between the bottom of the insertion portion 22a and the pressing plate 26 so as to be extendable and contractable in the axial direction. The wood screw member 28 is inserted into the screw through hole 25c of the shaft portion 25 from the connection surface 22b side, and is screwed into the end portion 7a of the second handrail 7 inserted into the insertion portion 22a. Thereby, the shaft portion 25 and the pressing plate 26 are fixed to the end portion 7 a of the second handrail 7 together with the conical coil spring 27.

  Then, the end portion 7a of the second handrail 7 inserted into the insertion portion 22a is pressed outward through the pressing plate 26 by the urging force of the conical coil spring 27.

  Screw insertion for inserting a wood screw member (not shown) for fixing the end portion 7a of the second handrail 7 whose axial position is fixed to the insertion portion 22a is near the end portion on the insertion side of the insertion portion 22a. A hole 22e is formed.

  As described above, the end portions 6a and 7a of the first handrail 6 and the second handrail 7 inserted into the insertion portions 21a and 22a of the first movable member 21 and the second movable member 22 are outward. Conical coil springs 27 are provided for pressing each.

  Therefore, when using the handrails 6 and 7 of the reference length, it is assumed that the interval between the connecting tools 20.20 facing each other is constructed with the reference interval L1 (see FIG. 5). In this case, as shown in FIG. 2, when the end portions 6 a and 7 a of the handrails 6 and 7 are inserted into the insertion portions 21 a and 22 a, the conical coil spring 27 is compressed to the reference position via the pressing plate 26. In this state, wood screw members are inserted from the screw insertion holes 21e and 22e, and the end portions 6a and 7a of the handrails 6 and 7 are fixed to the insertion portions 21a and 22a.

  On the other hand, it is assumed that the connecting tools 20 facing each other are constructed at an interval L2 (see FIG. 5) wider than the reference interval L1. In this case, as shown in FIG. 3, since the handrails 6 and 7 having the reference length are short, the end portions 6 a and 7 a of the handrails 6 and 7 inserted are conical coil springs 27 through the pressing plate 26. It is held in a state of being pushed outward by the urging force.

  Thereby, it can adjust and connect so that it may match with the connecting tool 20 which the space | interval L2 was constructed long, without replacing | exchanging with the long handrails 6 and 7 on the spot.

  On the other hand, it is assumed that the connecting tools 20 facing each other are installed at an interval L3 (see FIG. 5) narrower than the reference interval L1. In this case, since the handrails 6 and 7 having the reference length are long, the inserted end portions 6a and 7a of the handrails 6 and 7 are pushed inward against the biasing force of the conical coil spring 27. It will be held in the state.

  Thereby, it can adjust and connect so that the space | interval L3 may be matched with the opposing connection tool 20 constructed narrowly, without cutting the length of each handrail 6 and 7 on the spot.

  That is, since the lengths of the handrails 6 and 7 can be absorbed in the connection tool 20, the work of cutting the handrails 6 and 7 at the site is not required, and the workability is extremely good. Actually, the adjustment can be performed at intervals L2 to L3 of about plus or minus 10 mm with respect to the reference interval L1.

  In addition, the handrails 6 and 7 are held between the opposing connectors 10 at positions balanced in the axial direction by the urging force of the conical coil spring 27. Therefore, at the end of construction, when the end portions of the handrails 6 and 7 whose final positions in the axial direction are determined are fixed to the insertion portions 21a and 22a with the wood screw members 28, the screw fixing positions of the insertion portions 21a and 22a are set. On the other hand, since the end portions of both handrails 6 and 7 are positioned at substantially equal lengths, the fixing workability by the wood screw member 28 is also improved.

Further, the first movable member 21 connecting surface 21b of the second movable member 22, 22b, along opposite substantially plane-to-plane, connecting surface 21b, the 22b, a recess 21c and a protruding portion 22c for fitting the relative Is formed.

  Therefore, the reaction force of the conical coil spring 27 causes the concave portion 21c and the convex portion 22c for fitting the first movable member 21 and the second movable member 22 to be urged in the fitting direction. The member 21 and the second movable member 22 can be easily attached with an urging force, and conversely, they can be easily removed against the urging force. Further, since the fitting concave portion 21c and the convex portion 22c are always urged in the fitting direction, there is no gap between the connection surfaces 21b and 22b of the first movable member 21 and the second movable member 22, so that a handrail is formed. The continuity is ensured and the appearance is improved.

  Further, the wood screw member 28 is inserted through the screw through hole 25c and screwed into the end portions 6a and 7a of the handrails 6 and 7, so that the shaft portion together with the conical coil spring 27 is attached to the end portions of the handrails 6 and 7. 25 and the pressing plate 26 can be fixed. Therefore, since the pressing member 26 moves together with the handrails 6 and 7, the adjustment movement of the handrails 6 and 7 can be performed smoothly. Further, by using the conical coil spring 27 as the urging member, the conical coil spring 27 can be compressed in a substantially flat state against the urging force, so that the conical coil spring 27 is accommodated in each of the insertion portions 21a and 21a. Space can be shortened.

  Although the said embodiment demonstrated the connection tool 20 for the corners of the handrails 6 and 7 in FIG. 5, the same axial part 25 and press plate are also inserted in the insertion part of each end bracket 9 'of the handrails 5 and 8. 26, a conical coil spring 27, etc. are provided so that the end portions of the handrails 5 and 8 inserted into the insertion portion are pressed outward by the urging force of the conical coil spring 27 via the pressing plate 26. Also good.

6 1st handrail 7 2nd handrail 20 Connecting tool 21 1st movable member 21a Insertion part 21b Connection surface 21c Recessed part 21d Through hole 22 Second movable member 22a Insertion part 22b Connection surface 22c Convex part 22d Through hole 25 Shaft part 25a Retaining part 25b Caulking part 25c Screw through hole 26 Press plate 27 Conical coil spring

Claims (2)

In the handrail connector for connecting the end of the first handrail and the end of the second handrail,
A first movable member having an insertion portion for inserting and fixing the end portion of the first handrail, and a second movable member having an insertion portion for inserting and fixing the end portion of the second handrail,
Connection surface opposite the first movable member and the second movable member of the insertion portion is configured to face a substantially plane face-to-face, on the connection surface includes a concave portion and the convex portion of the fitting is relatively formed ,
Inside the feed Write-section, and the pressing plate end of the plugged in handrail abuts, is interposed between the bottom of the insertion portion and the pressing plate, the hand through the pressing plate and a biasing member is provided to press the end portion of the sliding outward,
The urging member is a conical coil spring, and is arranged so that the end portion on the large diameter side faces the pressing plate side . The through hole in the bottom of the front Symbol spigot, the fitted movably in the axial direction of the handrail, further comprising a shank having a retaining part on the end portion of the connecting surface,
The pressing plate is fixed to an end portion of the shaft portion on the insertion portion side ,
A screw through-hole is formed in the shaft portion, and a screw member is inserted into the screw through-hole from the connection surface side and screwed into an end portion of the handrail. The handrail connector according to claim 1, wherein the shaft and the pressing plate are fixed together with the biasing member.

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