JPH074256Y2 - Frame material connecting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a device for smoothly bending and connecting frame members such as upper chord members, lower chord members and head trees of stair railings.

[Conventional technology]

Kasagi, which is a handrail for stairs, has curved corners to make it look nice and secure.

For example, as shown in Japanese Utility Model Publication No. 59-40503, the frame material itself is made of an elastic material to bend the frame material.
As shown in Japanese Patent No. 0239, both ends of a joint made of a flexible material are fitted and connected to one frame member and the other frame member.

[Problems to be solved by the device]

In the former case, since the frame material is made of elastic material, it becomes a special frame material and it is expensive, and it is expensive to use it as a frame material for a straight part or as another frame material. It cannot be done due to strength, handling, etc.

On the other hand, in the latter case, one frame member and the other frame member can be manufactured from a normal hollow shape, so that the above-mentioned problems can be solved, but the following problems occur.

(1) Since the joint is fitted and connected to the opening end of the frame member, the opening end of the frame member is expanded and deformed by the restoring force of the joint.

(2) Since the core material is embedded in the joint body made of a flexible synthetic resin foam as a joint, the strength of the joint is determined by the strength of the joint body and the core material, and different strengths are required. If it is necessary to prepare joints corresponding to each strength,
It is troublesome.

Therefore, an object of the present invention is to provide a frame member connecting device capable of solving the above-mentioned problems.

[Means and Actions for Solving the Problems]

Connection of frame members formed by connecting one end in the longitudinal direction of one hollow frame member 10 and one end in the longitudinal direction of the other hollow frame member 11 at a predetermined angle with a joint 12 that is curved over the longitudinal direction. In the device, a long reinforcing member 17 is detachably disposed along a longitudinal direction in a long joint main body 16 formed of flexible rubber or synthetic resin to form a joint 12, and the joint 12 One side of the frame member in the longitudinal direction
It is thinner than the hollow portion of 10, and one longitudinal end of the joint 12 is inserted into the joint insertion portion of the connecting member 40 having a size that can be inserted into the hollow portion of the one frame member 10, and the length of the joint 12 is longer. The other end of the frame is the other frame member.
It is thinner than the hollow portion of 11, and the other end in the longitudinal direction of the joint 12 is inserted into the joint insertion portion of the connecting member 40 having a size that can be inserted into the hollow portion of the other frame member 11, and the joint 12 is In a curved state, one end in the longitudinal direction thereof is inserted into the hollow portion of one frame member 10 together with the connecting member 40, and the other end of the joint 12 in the longitudinal direction is connected to the connecting member 40.
At the same time, the frame member connecting device is inserted into the hollow portion of the other frame member 11 to connect the frame members 10 and 11 and the connecting members 40, respectively.

This allows one of the frame members to be bent with the joint 12 curved.
It is inserted into the hollow portion of 10 and the hollow portion of the other frame member 11 to connect the one frame member 10 and the other frame member 11 with a predetermined angle and in a state where the corner portions are smoothly curved.

The strength of the joint 12 itself is increased by the reinforcing material 17, and the connection strength is increased.

The connecting member 40 is inserted into and connected to the hollow portion of the one frame member 10 and the hollow portion of the other frame member 11, and the open ends of the hollow portions of the frame members 10 and 11 and one longitudinal end of the joint 12. Since there is no contact near the other end and the other end, the restoring force of the curved joint 12 is supported via the connecting member 40 at a portion apart from the opening end in the hollow portion of each frame member 10, 11 to open the hollow portion. Since it does not act on the ends, the open ends of the hollow portions of the frame members 10 and 11 do not expand and deform.

By arranging the reinforcing materials 17 having different strengths in the joint body 16 by exchanging them, a joint 12 having different strengths can be obtained by using the same joint body 16, and the joint 12 having a strength commensurate with the required coupling strength can be easily formed. Can be made.

〔Example〕

As shown in FIG. 5, the handrail for stairs connects the upper chord member 2 and the lower chord member 3 between a plurality of struts 1 and 1, and the lattice 4 is connected between the upper chord member 2 and the lower chord member 3 to form the upper chord member. Material 2, lower chord material 3
The corner portion A is smoothly curved to form the frame material according to the present invention.

As shown in FIG. 1, the corner portion A has one frame member 10
And the other frame material 11 are connected by a joint 12, and the frame material 1
The lower wall 13 and the arcuate peripheral wall 14 are hollow and have a substantially circular cross section, and the upper inner surface facing the lower wall 13 of the arcuate peripheral wall 14 is a flat surface 15.

The joint 12 is composed of a joint body 16 and a reinforcing material 17, and the joint body 16 is substantially the same as the frame members 10 and 11 in which a concave groove 19 is formed in a lower portion of a circular outer peripheral surface 18 by a flexible rubber or synthetic resin. The reinforcing material insertion groove 20 is formed in the longitudinal direction along with the long material having the same substantially circular cross section, and the reinforcing material insertion groove 20 is formed by the lateral groove 21 and the vertical groove 22.
The joint body 16 has a T-shape that opens to the flat surface 19a, and both ends in the longitudinal direction of the joint body 16 are a fitting portion 23 and a connecting portion 24 having a smaller diameter than the central portion.

The fitting portion 23 is a downward recess 25 continuous with the lower surface 21a of the lateral groove 21.
And the connecting portion 24 has a downward concave portion 27 formed on the upper surface 21b of the lateral groove 21 and an upper flat surface 28.

The reinforcing material 17 has a plate shape that is detachably inserted into the lateral groove 21 of the reinforcing material insertion groove 20, and slightly protrudes from both end surfaces of the joint body 16.

A cap 30 is fitted to the open ends of the frame members 10 and 11, and the cap 30 has a substantially arc-shaped upper leg piece 33 and a flat plate-shaped lower part on the back surface of a flange 32 in contact with the frame member end face 31. The leg pieces 34 are integrally formed, and the upper leg pieces 33 are the flat surfaces 1 of the frame members 10 and 11.
5, the lower leg piece 34 is fitted to the opening end of the frame material so that the lower leg piece 34 is in contact with the inner surface of the lower wall 13, and the screw 35 is inserted from the lower wall 13 to the lower leg piece.
The cap 30 is fixed to the frame member by being screwed onto the 34.

Then, the fitting portion 23 of the joint body 16 is fitted in the cap 30, the upper part of the arcuate peripheral surface 26 is in contact with the upper leg piece 33, and the downward recess 25 and the reinforcing member 17 are in contact with the lower leg piece 34. At the same time, the connecting portion 24 projects inward from the cap 30 and is connected to the connecting member 40 mounted inside the frame.

The connecting member 40 has a U-shape with a substrate 41, a vertical plate 42, and a connecting plate 43. The substrate 41 contacts the lower wall 13, the reinforcing member 17 contacts the substrate 41, and they are connected by screws 44. Connection member 40
Is attached inside the frame member, and its connecting plate 43 contacts the upper flat surface 28 of the connecting portion 24 of the joint body 16, and
A back plate 45 is brought into contact with the downward recess 27, and a screw 46 is screwed into the back plate 45 to connect the connecting portion 24 to the connecting member 40. That is, the connecting member 40 has a shape having a joint insertion portion into which the portion of the frame members 10 and 11 on both ends in the longitudinal direction of the joint 12 which is thinner than the hollow portion is inserted.

As shown in FIG. 6, the reinforcing material insertion groove 20 is formed in an inverted T shape by the lateral groove 21 and the upward vertical groove 22, and the reinforcing material 17 is provided at both longitudinal ends of the vertical plate 17a as shown in FIG. The horizontal plates 17b may be connected together.

By doing so, the reinforcing material 17 becomes strong against torsion.

[Effect of device]

By inserting the joint 12 in the hollow portion of the one frame member 10 and the hollow portion of the other frame member 11 in a curved state, the one frame member 10 and the other frame member 11 have a predetermined angle, and Can be connected with the corners smoothly curved.

Since the joint 12 is composed of the joint body 16 and the reinforcing material 17, the strength of the joint 12 itself is increased by the reinforcing material 17, and the connection strength can be increased.

One end of the joint 12 in the longitudinal direction, the other end thereof is closer to the hollow portion of the one frame member 10 and the hollow portion of the other frame member 11, and is inserted into the joint insertion portion of the connecting member 40. The connecting member 40 is inserted and connected to the hollow portion of the one frame member 10 and the hollow portion of the other frame member 11, and the open ends of the hollow portions of the frame members 10 and 11 and the longitudinal direction of the joint 12. Since the one end side and the other end side are not in contact with each other, the restoring force of the curved joint 12 is supported by the portion apart from the opening end in the hollow portion of each frame member 10, 11 via the connecting member 40. Since it does not act on the open ends, it is possible to prevent the open ends of the hollow portions of the frame members 10 and 11 from expanding and deforming.

Further, since the reinforcing material 17 is detachably arranged in the joint body 16, the reinforcing material having different strength is provided in the joint body 16.
The same joint body 16 can be installed by replacing 17
Can be used as a joint 12 with different strength,
Joint 12 with strength that matches the required connection strength
Can be easily manufactured.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a sectional view of a frame member connecting portion, and FIGS. 2, 3, and 4 are II-II and II lines in FIG.
I-III line, IV-IV line sectional view, FIG. 5 is a front view of a handrail for stairs, FIG. 6 (a), (b) is a plan view showing a modification of the joint body, a sectional view, FIG. (A), (b) is a top view and a sectional view showing a modification of a reinforcing material. 10, 11 is a frame material, 12 is a joint, 16 is a joint body, 1
7 is a reinforcing material and 40 is a connecting member.

Claims (1)

[Scope of utility model registration request] 1. One end of a hollow frame member 10 in the longitudinal direction and one end of the other hollow frame member 11 in the longitudinal direction are connected at a predetermined angle by a joint 12 which is curved over the longitudinal direction. In the connecting device for the frame member, a long reinforcing member 17 is detachably disposed along the longitudinal direction in a long joint main body 16 molded from flexible rubber or synthetic resin, and is bent and deformed. Possible joint 12, and one end of the joint 12 in the longitudinal direction near the one frame member
It is thinner than the hollow portion of 10, and one longitudinal end of the joint 12 is inserted into the joint insertion portion of the connecting member 40 having a size that can be inserted into the hollow portion of the one frame member 10, and the length of the joint 12 is longer. The other end of the frame is the other frame member.
It is thinner than the hollow portion of 11, and the other end in the longitudinal direction of the joint 12 is inserted into the joint insertion portion of the connecting member 40 having a size that can be inserted into the hollow portion of the other frame member 11, and the joint 12 is In a curved state, one end in the longitudinal direction thereof is inserted into the hollow portion of one frame member 10 together with the connecting member 40, and the other end of the joint 12 in the longitudinal direction is connected to the connecting member 40.
At the same time, it is inserted into the hollow portion of the other frame member 11, and each of the frame members 10 and 11 and each connecting member 40 are connected to each other, so that a frame member connecting device is provided.