JP2016211182A - Coupler for handrail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coupler for a handrail having a slidable member for generating frictional force and a connecting member comprising a protrusion extended from a connecting part that are independent from each other.SOLUTION: A coupler for a handrail comprises a first handrail connection part and a second handrail connection part to which end parts of adjacent handrail members that face each other may be fitted and fixed. The first handrail connection part has an almost semi-spherical protruded member, while the second connection part has a recessed member into which the protruded member is fitted, and a groove into which a protruded part extending from the protruded member and the protruded part of the recessed member may be fitted. The handrail connection parts are made slidable by inserting an elastic member in the fitting space, when connected by fitting and holding the protruded part in the groove.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a handrail connector that can be attached by connecting a handrail installed on a staircase or a corridor at an arbitrary angle.

  As a handrail connection tool for connecting adjacent handrail members, it consists of two handrail connection portions that can be fitted and fixed at opposite ends of adjacent handrail members, and can be slid in a state in which the handrail connection portions are fitted to each other. A connector has been proposed (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-6267

  The connection portions of the handrail connecting device are connected by pressing members provided at both ends of the connecting device, and the pressing member is formed mainly of a resin material and can slide. .

  However, in order to fix the slidable connecting portions with such a pressing member and having an appropriate frictional force, it is necessary to press the pressing member into the inner peripheral surface of the connecting portion for adjustment. Therefore, first, adjust the press-fitting of the presser member for each shape of the connecting portion (including the error of the shape generated at the time of manufacture), and secondly, to the presser member provided with the press-fit at both ends of the connector This is not only difficult to adjust the frictional force, but also has the disadvantage that it takes time to assemble.

  In order to eliminate these drawbacks, in the present invention, an assembly operation is provided by independently including a member for generating a slidable frictional force and a connecting member by a protruding portion extending from the connecting portion. And a handrail connector capable of easily adjusting the slidable frictional force.

  In view of the above problems, the present invention comprises a first handrail connection portion and a second handrail connection portion that can be fitted and fixed at opposite ends of adjacent handrail members, and the first handrail connection portion is a substantially hemispherical convex member. And the second handrail connecting portion includes a concave member that fits the convex member, a protruding portion that extends from the convex member, and a groove into which the concave member can fit the protruding portion, A handrail connection device characterized in that the projecting portion is slidably coupled in a state of being fitted and held in the groove.

  Further, in addition to the above-described configuration, the protrusion is provided with a fixture support portion, the presser member is fixed by the fixture with the fixture support portion, and the inner peripheral surface of the recess material is pressed by the presser member. Is preferably fitted and held in the groove.

  In addition to the above-described configuration, an elastic member is located in a fitting space between the convex member and the concave member that are connected by fitting the first handrail connecting portion and the second handrail connecting portion, and the elastic member is the concave member. It is preferable that a gap is formed between the elastic member and the convex member or the concave member.

According to the first aspect of the present invention, the first handrail connection portion and the second handrail connection portion are fitted in a state in which the projecting portion extending from the convex member is fitted and held in the groove of the concave member. The structure is simple and does not require a pressing member for the first handrail connecting portion, and can be easily assembled.

  According to the first aspect of the present invention, it is possible to provide a constant fitting space between the convex member of the first handrail connecting portion and the concave member of the second handrail connecting portion according to the height of the protruding portion. It is. This fitting space is for sandwiching a member formed in a certain shape for adjusting the frictional force.

  According to invention of Claim 2, the pressing member which presses the protrusion part extended from the convex member of the 1st handrail connection part, and the internal peripheral surface of the recessed part material of a 2nd handrail connection part is being fixed by the fixing tool. Therefore, it is possible to provide a constant fitting space between both the convex and concave members without press-fitting and adjusting the pressing member.

  According to invention of Claim 3, an elastic body can be inserted | pinched between fitting space, and it adjusts to the frictional force which can be slid by providing a space | gap in the surface which an elastic body and a convex member or a recessed part material contact. Can do.

It is a disassembled perspective view which shows the connection tool A for handrail in embodiment of this invention with a handrail member. (A) Front view showing a handrail connector A in an embodiment of the present invention, (b) a central cross-sectional view of a state where a shell-like elastic member is sandwiched between fitting spaces, and (c) a wavy cross-sectional shape. It is a center cross-sectional view of the state in which the elastic member which has this was pinched | interposed into the fitting space. It is (a) front view and (b) center longitudinal cross-sectional view which show the state which fixed the handrail connection tool A in embodiment of this invention to the obtuse angle with a handrail member. It is (a) front view and (b) center longitudinal cross-sectional view which show the state which fixed the handrail connection tool A in embodiment of this invention at right angle with a handrail member.

  An embodiment of the present invention will be described in detail with reference to FIGS. As shown in FIG. 1, the handrail connector A exemplified here includes a first handrail connection portion 1 and a second handrail connection portion 2 that can fit and fix opposite ends of adjacent handrail members, and the first handrail. A convex member 1a having a substantially hemispherical connection portion 1, a concave member 2a in which the second handrail connecting portion 2 fits the convex member 1a, a protruding portion 1b extending from the convex member 1a, and the concave member 2a has the groove 2b into which the protruding portion 1b can be inserted, and is in a state where the protruding portion 1b is fitted and held in the groove 2b and is slidable by inserting an elastic member in the fitting space. It is a thing.

  The first handrail connecting portion 1 is provided with a cylindrical cylindrical body 1c at the opposite end of the substantially hemispherical convex member 1a, and the opposite end portion of the adjacent handrail member 9 is inserted, and the fixing screw 6 is used. Fix it.

At this time, the cylindrical tubular body 1c is divided into a defect cylindrical tubular body 1c ₁ and handrail fixed portion 1c _2, by screwing the fixing screw 7 into the internal thread portion 1e of the defect cylindrical tubular body 1c ₁ Both are fixed and integrated.

And the protrusion part 1b which consists of a cylindrical cylinder which has the internal thread part which is the fixing tool support part 1b ₁ is extended by the convex member 1a of the axial direction of this cylindrical cylinder 1c.

  From the configuration described above, since the protruding portion 1b extending from the convex member 1a is integrally formed, in a state where the concave member 2a is fitted and held in the groove 2b, depending on the height of the protruding portion 1b. A fixed fitting space can be provided between the convex member 1a and the concave member 2a (see, for example, FIGS. 2B and 2C). That is, the protrusion height is provided so that the protrusion 1b has a constant fitting space, and even if the screw that is the fixture 3 is firmly tightened to the protrusion 1b, the protrusion 1b is constant. Can be secured. In the conventional connector, since the size of the space is determined by the press-fitting of the pressing member by the user or the installer, the sliding may not be performed smoothly. There is no.

Further, since the protruding portion 1b is formed integrally with the convex member 1a, there is no need for a pressing member for pressing the inner peripheral surface on the convex member 1a side, and the fixing tool 3, the pressing member 4 and the fixing tool support are not required. Since the part 1b ₁ can use highly versatile parts such as a fixing screw, a washer and a female screw part, it can be easily assembled at low cost.

In addition, the first handrail connection portion 1 is slid and rotated in the axial direction in accordance with the direction of fixing with the handrail support portion attached to the wall in advance, and the fixing screw 7 of the first handrail connection portion 1 is removed to remove the handrail member 9. by a handrail fixed portion 1c ₂ is to isolate the missing cylindrical tubular body 1c _1, installation and removal of the handrail support and handrail member 9 can be easily enforced and railing fixing of the fixed portion 1c ₂ and the handrail member 9 Deterioration of the handrail member 9 due to repeated mounting of the screw 6 can be prevented.

  The second handrail connecting portion 2 is provided with a cylindrical cylindrical body 2c at the opposite end of the concave member 2a into which the convex member 1a is fitted, and the handrail member 10 adjacent to the cylindrical cylindrical body 2c is provided. The opposite end is inserted and fixed with a fixing screw 8.

  The recess 2a has a groove 2b on the recess 2a so as to intersect the axial direction of the cylindrical tube 2c, and a small hole 2d for fixing the elastic member 5 along the outer peripheral surface of the recess 2a. And are formed.

  From the above-described configuration, by sliding along the groove 2b with the recessed member 2a formed so as to fit the protruding member 1a and the protruding portion 1b fitted and held in the groove 2b of the recessed member 2a, It is possible to change the 1st handrail connection part 1 and the 2nd handrail connection part 2 to arbitrary angles. For example, FIG. 3 shows a state where the obtuse angle is fixed, and FIG. 4 shows a state where the obtuse angle is fixed at a right angle.

  Further, the elastic member 5 sandwiched in the fitting space by the small hole 2d of the concave member 2a is fixed, and the elastic member 5 follows the outer peripheral surface of the concave member 2a during sliding so that it is not exposed from the fitting space. can do. That is, as shown in FIGS. 3 and 4, the exposed portion of the convex member 1 a moves during sliding.

  The elastic member 5 is a shell-like body along the outer peripheral surfaces of the convex member 1a and the concave member 2a. The elastic member 5 has a projection 5b and a projection 1b fitted into the groove 2b on the surface in contact with the concave member 2a. A long hole 5a having a size that does not prevent this is provided. The protrusion 5b can be fitted into the small hole 2d of the concave member 2a, and can be fixed to follow the elastic member 5 and the concave member 2a without sliding.

  At this time, the shell-like body of the elastic member 5 is in a state of being in contact with a part of the outer peripheral surface of the convex member 1a or the concave member 2a while being sandwiched in the fitting space, and having a gap with the other parts. Preferably there is. For example, as shown in an enlarged sectional view B of FIG. 2 (b), a substantially hemispherical shape in which only the peripheral edge 5c is in contact with the outer peripheral surface of the convex member 1a, or an enlarged sectional view of FIG. 2 (c). As shown in C, the cross-sectional shape may be wavy and the top of the wave may be in contact with the outer peripheral surface of the convex member 1a or the concave member 2a.

  From the above-described configuration, the shell-like elastic member 5 having a certain size can be sandwiched in the certain fitting space provided without preventing the protrusion 1b from being fitted and held in the groove 2b.

  Further, a frictional force is generated in the convex member 1a and the concave member 2a according to the repulsive force of the elastic member 5. The generated frictional force can be adjusted by the shape of the surface of the elastic member 5 in contact with the shell, the convex member 1a and the concave member 2a. For example, it is possible to easily assemble by using the elastic member 5 formed so as to generate a sliding frictional force in a state where only the peripheral edge portion 5c of the shell-like body is in contact.

  Therefore, the conventional connection is provided by independently including the protruding portion 1b that is a connecting member extending from the first handrail connecting portion 1 and the elastic member 5 that is a member for generating a sliding frictional force. Provided is a handrail connection tool that can easily perform assembly work and adjustment of slidable friction force without requiring adjustment of slidable friction force by press-fitting of a tool and a presser member. Is possible.

In the above embodiment, the preferred embodiment of the present invention has been exemplified. However, the present invention is not limited to the above embodiment, and can be improved or changed within the scope described in the claims. For example, it is possible to provide the handrail fixing portion 1c ₂ provided in the first handrail connecting portion 1 in the second handrail connecting portion 2, or to provide the protruding portion 1b in the recessed member 2a and the groove 2b in the protruding member 1a. In addition, the elastic member 5 may be a sponge-like member having a gap inside.

A ... handrail for fitting, 1 ... first handrail connection section, 1a ... projecting member, 1b ... protruding portion, 1c ... cylindrical tubular body, 1c 1 _... deficient cylindrical tubular body, 1c 2 _... handrail fixed part, 1b ₁ ... Fixing tool support part, 1e ... Female thread part, 2 ... Second handrail connection part, 2a ... Recess material, 2b ... Groove, 2c ... Cylindrical cylindrical body, 2d ... Small hole, 3 ... Fixing tool, 4 ... Holding member, DESCRIPTION OF SYMBOLS 5 ... Elastic member, 5a ... Long hole, 5b ... Protrusion, 5c ... Peripheral part, 6, 7, 8 ... Fixing screw, 9, 10 ... Handrail member, B, C ... Expanded sectional view

Claims (3)

  Consists of a first handrail connecting portion and a second handrail connecting portion that can be fitted and fixed at opposite ends of adjacent handrail members, wherein the first handrail connecting portion is a substantially hemispherical convex member, and the second handrail connecting portion is A concave member that fits the convex member; a protruding portion that extends from the convex member; and a groove into which the concave member can fit the protruding portion, and the protruding portion is fitted and held in the groove. A handrail connector characterized by being slidably coupled in a state.   A fixing tool supporting portion is provided in the protruding portion, the pressing member is fixed by the fixing tool supporting portion with the fixing tool, and the inner peripheral surface of the concave member is pressed by the pressing member, so that the protruding portion is fitted and held in the groove. The handrail connector according to claim 1, wherein   An elastic member is located in the fitting space between the convex member and the concave member that are connected by fitting the first handrail connecting portion and the second handrail connecting portion, and the elastic member is formed along the outer peripheral surface of the concave member. The handrail connection device according to any one of claims 1 and 2, further comprising a gap between the elastic member and the convex member or the concave member.

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