JP2944551B2 - Corner fittings for handrails - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner joint provided at a corner portion of a handrail attached along a wall surface or a floor surface of a building.

[0002]

2. Description of the Related Art Generally, handrails are installed on stairs of a building while being fixed to a wall surface along the stairs. In this case, the installation height of the handrail is set to an optimum height for a human to hold the handrail. Therefore, particularly in the case of a handrail for stairs, the handrail is formed by inclining or bending the stairs. It is necessary to incline or bend in accordance with Therefore, in such a handrail for stairs, for example, a handrail portion extending in a straight line installed in the corridor portion of the first floor or the second floor, and a handrail portion installed in the stair portion provided between the first floor and the second floor Is naturally installed at a predetermined crossing angle, and a corner joint is required to connect the handrails having such a crossing angle.

In this case, if the inclination angle of the stairs is constant,
It is sufficient to set the intersection angle of the corner joint in accordance with the inclination angle.From this viewpoint, conventionally, a plurality of types of corner joints having a predetermined assumed intersection angle are prepared, This was appropriately selected and used.

[0004]

However, in reality,
For example, the inclination angle of the stairs is different for various reasons such as the layout of the building and the design of the stairs. Therefore, in the case of using a ready-made corner joint designed in correspondence with the assumed handrail intersection angle as in the prior art, the handrail provided on the horizontal corridor and the hand provided on the inclined stairs are used. In many cases, it is not possible to connect the sliding member with the sliding member in a natural bending state, and the correction of the crossing angle of the corner joint cannot be easily performed on site. As a result, the overall design of the handrail attached is impaired, which may lead to a reduction in the value of the building itself, impair the function of the handrail itself, or a decrease in workability when attaching the handrail. This causes problems such as an increase in cost.

[0005] Therefore, the present invention provides a handrail corner joint in which a handrail having various crossing angles can be applied to a corner portion by easily changing and adjusting the crossing angle at an installation site. The purpose of the present invention is to improve the handrail mounting workability, secure the proper function of the handrail, and improve the handrail design.

[0006]

Means for Solving the Problems In the present invention, the following configuration is adopted as specific means for solving such problems.

In the first invention of the present application, the one handrail member and the other handrail member are disposed at a corner portion of one of the straight handrail members and the other handrail member arranged at a predetermined intersection angle. A corner joint for handrails connecting at a predetermined crossing angle, a straight first joint member having one end connected to the end of the one handrail member and one hinge member fixed to the other end. A second joint member having one end connected to the end of the other handrail member and the other hinge member fixed to the other end, a spherical body having a predetermined diameter, and one side peripheral surface thereof Includes an intermediate member disposed at the other end of the first joint member, and an intermediate member having the other side peripheral surface fitted to the other end of the second joint member, respectively. Shaft hole penetrated through, and the shaft hole An opening on the outer peripheral surface of at least the intermediate member is formed in an intersecting direction, and at least an opening on the outer peripheral surface of the intermediate member forms a slot-shaped swing hole extending in a surface direction orthogonal to the shaft hole; The one hinge member is inserted into the swing hole of the intermediate member from one side thereof, and
The joint member is configured such that the other hinge member is inserted into the swing hole of the intermediate member from the other side, and the one hinge member and the other hinge member are inserted through the shaft hole and arranged to be pivotally mounted. Thus, it is characterized in that it is swingably connected within a predetermined angle range around the pivot shaft member.

According to a second aspect of the present invention, in the handrail corner joint according to the first aspect, the outer diameters of the first joint member and the second joint member and the spherical diameter of the intermediate member are substantially the same. And the other hinge member and the other hinge member are connected to each other by the pivot shaft member via the intermediate member. The mounting position with respect to the first joint member and the second joint member is set such that both ends are in contact with or close to the outer peripheral surface of the intermediate member.

According to a third aspect of the present invention, in the corner joint for a handrail according to the first aspect, the swing hole is formed by:
In the swing range between the first joint member and the second joint member, the other end of the first joint member and the other end of the second joint member are covered with each other so as to prevent exposure to the outside. It is characterized by having been set to.

According to a fourth invention of the present application, in the corner joint for a handrail according to the first, second or third invention,
The first joint member and the second joint member are made of a solid rod or tube made of wood, metal or resin, and the intermediate member is made of a solid sphere or hollow sphere made of wood, metal or resin. It is characterized by doing.

[0011]

According to the present invention, the following effects can be obtained by adopting such a configuration.

According to the handrail corner joint according to the first invention of the present application, the first joint member connected to the end of one handrail member and the second joint member connected to the end of the other handrail member. The first joint member and the second joint member are appropriately swung within a predetermined angle range around a pivot shaft member inserted and disposed in a shaft hole of an intermediate member disposed therebetween. The intersection angle with the member can be set arbitrarily.

Therefore, the corner joint can be easily applied to the connection between one handrail member and the other handrail member having different crossing angles, and the versatility is remarkably improved.

Further, since the change of the intersection angle of the corner joint can be easily adjusted in the field work, the workability in the handrail assembling work can be improved and the cost can be reduced. The accuracy of assembling with the joint is improved, and the original function of the handrail is ensured with high reliability.

Further, since the corner joint has a joint structure in which a spherical intermediate member is interposed between the first joint member and the second joint member, the corner joint is moved from the first joint member to the second joint member. Is smooth, the design of the entire handrail including the corner joint is improved, and the commercial value of the handrail can be expected to be improved.

According to the handrail corner joint according to the second aspect of the present invention, the following specific effects can be obtained in addition to the effects described above. That is, in the handrail corner joint of the present invention, the outer diameter of the first joint member and the second joint member and the spherical diameter of the intermediate member are substantially the same,
In a state where the one hinge member and the other hinge member are connected by the pivot shaft member via the intermediate member, the other end of the first joint member and the other end of the second joint member are connected. Since the mounting position with respect to the first joint member and the second joint member is set so as to be in contact with or close to the outer peripheral surface of the intermediate member, any intersection angle between the first joint member and the second joint member is set. Even if the state is set to, a sense of unity in appearance occurs between the first and second joint members and the intermediate member positioned therebetween, so that the design of the handrail as a whole is reduced. Improve further.

Also, since the step at the boundary between the intermediate member and the first joint member and the second joint member located on both sides of the intermediate member is extremely small, a sense of discomfort in tactile sensation when the corner joint is touched by a person. And the commercial value of the handrail as a whole is further improved.

According to the handrail corner joint according to the third aspect of the present invention, the following specific effects can be obtained in addition to the effects described above. That is, in the corner joint for handrails of the present invention, the swing hole is provided so that the other end of the first joint member and the second joint member are located within the swing range of the first joint member and the second joint member. Is set to have such a shape as to be covered by the other end so that exposure to the outside is prevented, so that, for example, the appearance of the corner joint portion is better than when the swing hole portion is exposed. Good, and the commercial value of the entire handrail is further improved.

According to the handrail corner joint according to the fourth invention of the present application, the following specific effects can be obtained in addition to the effects described above or above. That is, in the handrail corner joint of the present invention, the first joint member and the second joint member are connected to each other.
The joint member is made of a solid rod or tube made of wood, metal or resin, and the intermediate member is made of a solid sphere or hollow sphere made of wood, metal or resin. By appropriately selecting and using the materials or structures of the joint member, the second joint member, and the intermediate member, for example, a hand having a texture or function optimal for various conditions such as the purpose and application of the building to which the handrail is attached. The handrail can be obtained, and the degree of freedom in handrail design can be increased accordingly.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The handrail corner joint of the present invention will be specifically described below based on a preferred embodiment.

First Embodiment FIGS. 1 to 3 show a handrail corner joint 1 according to a first embodiment of the present invention. The corner joint 1 is, for example, a straight handrail member 2 attached to an upper floor portion.
A, for connecting the corners of a straight handrail member 2B attached to a staircase portion provided at a predetermined inclination angle from the upper floor portion to the lower floor portion to form a series of "handrails" And a first joint member 11, a second joint member 12, and an intermediate member 13 described below.

The first joint member 11 is a wooden straight rod having a circular cross-section, a predetermined diameter and a predetermined length, and one end 11a of which is an end of the straight handrail member 2A arranged on the upper floor. Through a joint member 3. Further, the other end 11b of the first joint member 11 is a fitting recess 18 which is depressed in a substantially hemispherical shape. A wood screw member 21 (corresponding to “one hinge member” in the claims) described below is coaxially attached to the center of the fitting concave portion 18. The wood screw member 21 is provided with a forked connecting portion 22 a having a fitting insertion hole 21 b at a tip end thereof. The wood screw member 21 is screwed and fixed to the fitting concave portion 18 at the axial center position of the first joint member 11. I have. When the wood screw member 21 is attached to the first joint member 11, the fitting hole 21 b is inserted into the other end 11 of the first joint member 11.
The screwing amount is set so as to protrude forward by a predetermined dimension from b.

The second joint member 12 has a structure similar to that of the first joint member 11, and is a wooden straight rod having a circular cross section, a predetermined diameter and a predetermined length. 12a is the straight handrail member 2B arranged on the side of the stairs
Is connected via a joint member 3. The other end 12b of the second joint member 12 is a fitting recess 19 which is depressed in a hemispherical shape. A wood screw member 22 (corresponding to “the other hinge member” in the claims) is attached to the center of the fitting recess 19. The wood screw member 22 includes a connecting portion 22a formed of a tongue-shaped protruding piece having a fitting insertion hole 22b provided at a tip end thereof, and is screwed into the fitting concave portion 19 at the axial center position of the second joint member 12. Fixed. When the wood screw member 22 is attached to the second joint member 12, the fitting hole 22 b is connected to the other end 12 b of the second joint member 12.
The screwing amount is set so as to project forward by a predetermined dimension.

The intermediate member 13 is connected to each of the joint members 1
It is composed of a wooden sphere having a sphere diameter substantially the same as the outer diameter of the spheres 1 and 12. The intermediate member 13 includes a shaft hole 16 that is a through hole having a predetermined diameter that passes through the spherical core, and a through hole having a rectangular opening cross-sectional shape that passes through the spherical core and extends in a direction perpendicular to the axial hole 16. Swing hole 17 is provided.
The swing hole 17 is a portion where the ceiling surface 17a located on one side in the direction orthogonal to the shaft hole 16 is a flat surface, and the bottom surface 17b located on the other side is overlapped with the shaft hole 16. On both sides of the upper surface 17a, the upper surface 17a is inclined downwardly and gradually away from the ceiling surface 17a toward the outside in the radial direction. In addition, this bottom surface 17b
The inclination angles of the inclined surfaces on both the left and right sides with respect to the ceiling surface 17a are set in accordance with the expected intersection angle between the first joint member 11 and the second joint member 12.

The above-mentioned first components each constructed as described above.
The joint member 11, the second joint member 12, and the intermediate member 13 are connected via the pivot shaft member 14 as described below, and constitute the "corner joint 1" which is one of the handrail components.

That is, as shown in FIGS. 1 and 2, the first joint member 11 is provided with the fitting recess 1 on the other end 11b side.
The wood screw member 21 protruding from the fitting concave portion 18 in a state where one side peripheral surface portion of the intermediate member 13 is fitted into the inside 8.
Into the swinging hole 17 of the intermediate member 13 from one opening end side. Further, the second joint member 12 is provided with the wood protruding from the fitting recess 19 in a state where the other side peripheral surface portion of the intermediate member 13 is fitted into the fitting recess 19 on the other end 12b side. The screw member 22 is inserted into the swing hole 17 of the intermediate member 13 from the other open end side. Then, the connecting portion 21a of the wood screw member 21 on the first joint member 11 side
Connecting part 2 of the wood screw member 22 and the second joint member 12
2a is combined with the inside of the intermediate member 13, and each of the fitting holes 21b, 21b,
22 b is polymerized on the axis of the shaft hole 16. Thereafter, the pivot shaft member 14 is inserted into the shaft hole 16 from one end thereof.
And insert the supporting shaft portion 14b into each of the wood screw members 2.
1 and 22 are inserted through the respective insertion holes 21b and 22b, the support shaft 14b pivotally supports the two relative to each other, and inserts the nut member 15 from the other end of the shaft hole 16. This is screwed into the screw portion 14c of the pivot shaft member 14 to fix the connecting portions 21a and 22a to each other.

In this state, the outer peripheral edges of the other ends 11b and 12b of the joint members 11 and 12 are in contact with or close to the outer peripheral surface of the intermediate member 13, respectively. Further, the size of the opening edge of the swing hole 17 may be any one of the first joint member 11 and the second joint member 12 when the first joint member 11 and the second joint member 12 are bent and displaced around the intermediate member 13 as described later. The first joint member 11
Is formed so as to be covered by the other end 11b of the second joint member 12 and the other end 12b of the second joint member 12 so as not to be exposed to the outside. Further, the shape and dimensions of the pivot shaft member 14 and the nut member 15 are appropriately set such that none of them protrudes outside from the outer peripheral surface of the intermediate member 13 in the screwed state.

With the above, the assembly of the first joint member 11, the second joint member 12, and the intermediate member 13 is completed, and the corner joint 1 is constructed.

The corner joint 1 thus configured is
Since the first joint member 11 and the second joint member 12 are pivotably supported via the pivot shaft member 14, the first joint member 11 and the second joint member 12 are loosely fastened by the pivot shaft member 14. The joint member 11 and the second joint member 12 can be bent to an arbitrary crossing angle within the opening range of the swing hole 17, and by tightening the pivot shaft member 14, the crossing angle at that time can be obtained. The shape can be maintained as it is. Specifically, as shown by the solid line in FIG. 2, the position where the second joint member 12 is bent to the maximum with respect to the first joint member 11 (the position having the maximum intersection angle) and the position indicated by the chain line A position can be arbitrarily set within a range (a position having a minimum intersection angle) where the second joint member 12 is coaxial with the first joint member 11, and the set position is fixedly held. Can be done.

Therefore, as shown in FIGS. 1 and 2, the corner joint 1 is installed along the wall W at the stairs and the straight handrail member 2A installed along the wall W on the upper floor. As long as the crossing angle with the straight handrail member 2B is within the range of the crossing angle adjustment of the corner joint 1, no matter what the crossing angle is, it is interposed between the straight handrail member 2A and the straight handrail member 2B. Thus, the corner joint 1 has high versatility. In the installed state, the corner joint 1 is fixed by supporting the joint members 11 and 12 on the wall W with support brackets 4 and 4, respectively.

Further, in the corner joint 1 described above,
Since it is possible to easily change and adjust the intersection angle by a very simple operation of screwing the pivot shaft member 14 at the handrail construction site, for example, the intersection angle is fixedly set in advance as in the related art. The workability (construction workability) in the handrail assembling work is improved as compared with the case where the change cannot be made in the field work, and the cost in the handrail construction can be reduced accordingly. Also, since the intersection angle of the corner joint 1 can be set arbitrarily, the corner joint 1 and the handrail members 2A, 2B can be set.
And the accuracy of the assembly between them is improved, and the original function of the handrail is secured with high reliability.

Since the corner joint 1 has a joint structure in which a spherical intermediate member 13 is interposed between the first joint member 11 and the second joint member 12, The transition of the bend to the second joint member 12 becomes smooth, so that the design of the entire handrail including the corner joint 1 is improved, and the commercial value of the handrail can be expected to be improved.

Further, the outer diameter of the first joint member 11 and the second joint member 12 and the spherical diameter of the intermediate member 13 are substantially the same, and the other end 11b of the first joint member 11 and the second Since the other end 12b of the joint member 12 is in contact with or close to the outer peripheral surface of the intermediate member 13, the first joint member 11 and the second joint member 12 are set at any intersection angle. Even if there is, each of these joint members 11,
A sense of unity in appearance is generated between the handrail 12 and the intermediate member 13 located therebetween, and a high designability is obtained as a whole handrail.

Also, the step at the boundary between the intermediate member 13 and each of the joint members 11 and 12 located on both sides thereof is extremely small. Therefore, when the corner joint 1 is touched by a person, a sense of discomfort in tactile sensation is reduced. There are few, and the handrail as a whole has high commercial value.

On the other hand, the swing hole 17 provided in the intermediate member 13 is provided between the first joint member 11 and the second joint member 1.
2 in the range of swing with the other end 11b, 12b.
Since the cover is covered by b and the exposure to the outside is prevented, the appearance of the corner joint 1 becomes better as compared with a case where the swing hole portion is exposed, for example, and as a whole handrail. Will further increase the value of the product.

Second Embodiment FIG. 4 shows a corner joint 1 according to a second embodiment of the present invention. Corner joint 1 of this embodiment
Is an example in which the first joint member 11 and the second joint member 12 are both formed of a metal or resin tube, and the intermediate member 13 is formed of a metal or resin sphere. Its basic structure and function are the same as those of the corner joint 1 in the first embodiment.

However, in this embodiment, since the first joint member 11 and the second joint member 12 are constituted by pipes, the other ends 11b, 12b of these joint members 11, 12 are formed. The plate members 33, 34 provided with nut members 35, 36 on the sides thereof are provided.
5 and 36, bolt members 31 functioning as hinge members,
32 is adopted.

Third Embodiment FIG. 5 shows a corner joint 1 according to a third embodiment of the present invention. Corner joint 1 of this embodiment
In the first embodiment, the first joint member 11 and the second joint member 12 are both formed of a metal or resin tube as in the second embodiment. In contrast to the above, a hollow sphere made of metal or resin is used, and this sphere is provided with the shaft hole 16 and the swing hole 17.
Are formed respectively.

By adopting such a structure of the intermediate member 13, the weight of the intermediate member 13 can be reduced as compared with a case where the intermediate member 13 is formed of a solid sphere, for example, and the handling at the time of construction can be reduced accordingly. It will be easier.

In addition, the corner joint according to the present invention is not limited to the combination of materials or structures shown in the above embodiments. For example, the first joint member 11 and the second joint member 12 may be made of wood, metal, or the like. Or a solid rod or tube made of resin or resin, and the intermediate member is made of a solid sphere or hollow sphere made of wood, metal or resin, and these are used for various purposes such as the purpose and use of the building. It can be appropriately selected and used according to conditions. Such selective use can easily respond to diversification of user needs.

[Brief description of the drawings]

FIG. 1 is a side view showing a handrail corner joint according to a first embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows II-II in FIG.

FIG. 3 is an exploded perspective view of the handrail corner joint shown in FIG. 1;

FIG. 4 is a side view of a handrail corner joint according to a second embodiment of the present invention.

FIG. 5 is a partially sectional side view of a handrail corner joint according to a third embodiment of the present invention.

[Explanation of symbols]

1 is a corner joint, 2A and 2B are straight handrail members, 3 is a joint member, 4 is a support bracket, 11 is a first joint member, 12 is a second joint member, 13 is an intermediate member, 14 is a pivot shaft member, 15 is a nut member, 16 is a shaft hole, 17 is a swing hole, 18 and 19 are fitting recesses, 21 and 22 are wood screw members, W is a wall, and Z is a handrail.

Claims (4)

(57) [Claims] 1. A handrail member, which is disposed at a corner of one of the straight handrail members arranged at a predetermined intersection angle and the other handrail member, and which is connected to the one handrail member and the other handrail member at a predetermined intersection angle. A handrail corner joint to be connected, one end of which is connected to the end of the one handrail member and the other end of which has one hinge member fixed thereto.
A second linear member having one end connected to the end of the other handrail member and the other hinge member fixed to the other end;
A joint member, a spherical body having a predetermined diameter, and one side peripheral surface is disposed in a fitting state with the other end of the first coupling member, and the other side peripheral surface is fitted with the other end of the second coupling member. And an intermediate member, wherein the intermediate member has a shaft hole penetrated through the spherical core, and a hole penetrating in a direction perpendicular to the shaft hole and at least on the outer peripheral surface of the intermediate member. An opening is formed in the form of an elongated hole extending in a plane direction orthogonal to the shaft hole, and the first joint member connects the one hinge member to the swing hole of the intermediate member from one side thereof. The second joint member inserts the other hinge member into the swing hole of the intermediate member from the other side, and inserts the one hinge member and the other hinge member through the shaft hole. A predetermined angle around the pivot shaft member. Handrail for a corner joint, characterized in that the pivotally coupled within. 2. The method according to claim 1, wherein the outer diameter of the first joint member and the outer diameter of the second joint member are substantially the same as the spherical diameter of the intermediate member, and the one hinge member and the other hinge member have the same diameter. However, in a state where they are connected by the pivot shaft member via the intermediate member, both the other end of the first joint member and the other end of the second joint member are in contact with or near the outer peripheral surface of the intermediate member. A handrail corner joint, wherein a mounting position with respect to the first joint member and the second joint member is set so as to face each other. 3. The device according to claim 1, wherein the swing hole is provided within the swing range between the first joint member and the second joint member, at the other end of the first joint member and the second joint member.
A corner joint for a handrail, wherein the corner joint is set in such a shape as to be covered by the other end of the joint member and to prevent exposure to the outside. 4. The method according to claim 1, wherein the first joint member and the second joint member are made of a solid rod or tube made of wood, metal or resin, and the intermediate member is made of wood. A corner joint for a handrail, comprising a solid sphere or a hollow sphere made of metal or resin.