JPH0635568U - Door rail connector - Google Patents

Abstract

(57) [Summary] [Structure] This door rail connecting device 2 has a shape in which a cylinder made of spring steel is halved and has an outer peripheral surface 2 as a fitting portion.
c and plane portions 2a and 2b. The door roller rail connector 2 is fitted into the recess 11 provided below the central portion of the door roller rail body 1 without any gap. [Effect] The abutted end portions of the door roller rail main body 1 inserted in the threshold groove are aligned without generating a step. Therefore, the door roller can be moved smoothly, and discomfort caused by noise and vibration when opening and closing the door can be eliminated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door rail connector.

[0002]

[Prior art]

 The length of the door rail of the building has a standard length, 2.7 m, 3.6 m, 4. It is 0 m and so on. Since the above standard length is difficult to handle, it is often rejected by the shipping company when it is transported. Therefore, generally, the standard length of the door roller rail is cut into a length of about 2 m that is easy to handle for transportation.

On the other hand, in the work of installing the door roller rail main body in the sill groove of the building, the door roller rail main bodies cut to about 2 m are appropriately combined to match the length of the sill groove, and It is inserted into the sill groove with its ends abutting each other.

[0004]

[Problems to be solved by the device]

 In the installation work described above, the end portions of the door rail body are simply butted together, so when the door rail body is inserted into the sill groove, the heights of the end portions of the door rail body will not match and the end portions will not match. A step often occurs between the two. If a step is formed between the ends of the abutted door rail bodies, not only the door cannot move smoothly, but also noise occurs when the door passes through the step. Further, there is a problem that the impact of that time causes the door roller to be severely worn and the life of the door roller is significantly reduced.

Therefore, in view of the above problems, an object of the present invention is to provide a door rail connector which aligns the ends of the door rail main bodies that are abutted with each other without causing a step.

[0006]

[Means for Solving the Problems] A door wheel rail connector according to claim 1 is a door wheel rail tool for connecting a pair of door wheel rail bodies that are inserted into a sill groove with their ends abutted against each other. The connector is characterized in that it is provided with a fitting portion for aligning the end portions of the door roller rail main body in a state of being fitted to a predetermined portion of each door roller rail main body.

[0007]

[Action]

 According to the door rail connector according to claim 1, by fitting the fitting portion to the fixed portion provided on the door rail main body, the end portions of the abutted door rail main bodies are aligned with each other. You can Therefore, no step is generated between the ends.

[0008]

【Example】

 Embodiments will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a door wheel rail connector (hereinafter referred to as a "connector") according to an embodiment (first embodiment) of the present invention, which is fitted to a door wheel rail main body (hereinafter referred to as a "rail main body"). It is a partial cross-sectional perspective view in a state. FIG. 2 shows the connecting tool 2. FIG. 3 is a sectional view of the rail body 1.

With reference to FIG. 2, the connector 2 is made of spring steel, and is a cylinder divided into approximately half along the axial direction. The connector 2 has flat surface portions 2a and 2b on its upper surface. Further, the connecting tool 2 constitutes a fitting portion with a recess 11 to be described later of the rail body 1 by the outer peripheral surface 2c of the half cylinder. With reference to FIG. 3, the rail body 1 is made of aluminum and is formed into an elongated rod shape by extrusion. Further, the rail body 1 has a substantially M-shaped cross section, has a recessed portion 11 below a central portion sandwiched by the side walls 13 and 14, and a flange portion projecting outwardly is provided at an uppermost portion of the side walls 13 and 14. 15 is provided. Further, jaws 13a and 14a are provided on the outer edges of the side walls 13 and 14, respectively.

The recess 11 provided in the rail main body 1 has flat sections 1 a and 1 b which are semicircular in cross section and which are brought into contact with the flat sections 2 a and 2 b of the connector 2. The radius of curvature 2r of the outer peripheral surface 2c of the connector 2 is larger than the radius of curvature 1r of the inner surface 12 of the recess 11 provided in the rail body 1, and when assembled, the connector 2 is pushed in from the top of the rail body 1 to fit. (Figure 1).

Next, the assembly of the door roller rail using the connector 2 will be described. The ends of the two rail bodies 1 are butted against each other, and both rail bodies 1 are inserted into the sill groove 7. The connecting tool 2 is fitted into the recess 11 of each rail body 1 from above so as to straddle the ends of both rail bodies 1. The fitted connector 2 is compressed in the radial direction, and its reaction force fits the outer peripheral surface 2c to the inner surface 12 of the recess 11 of the rail body 1 without any gap and corresponds to the rail body 1 and the connector 2. The flat portions (1a and 2a and 1b and 2b) are fitted together without a gap. As a result, the connector 2 and each rail body 1 are positioned in the width direction and the height direction. Therefore, the ends of the rail main body 1 are positioned and aligned in the width direction and the height direction via the coupling tool 2.

FIG. 4 is a perspective view, partly in section, of a state in which a connector 4 according to another embodiment (second embodiment) of the present invention is fitted to the rail body 3. FIG. 5 shows the connecting tool 4. FIG. 6 is a sectional view of the rail body 3. Referring to FIG. 5, the connector 4 is made of spring steel, and has a fitting portion 4a having a cut surface formed of a part of a cylinder, and a rectangular flat surface portion 4b continuous with one end thereof. With reference to FIG. 6, the rail main body 3 is made of an elongated rod-shaped aluminum that is integrally formed by extrusion. The rail body 3 has a substantially W-shaped cross section, and has recesses 33 and 34 on its upper surface for guiding the movement of the door roller. The bottom of the rail body 3 is provided with a step portion 3a that is pressed against the flat surface portion 4b of the coupling tool 4, and a recess 31 that fits with the fitting portion 4a of the coupling tool 2.

Similar to the embodiment of FIG. 1, the connector 4 is fitted in the recess 31 provided in the rail body 3, but in the case of this embodiment, the connector 4 is arranged under the rail body 3, The rail main body 3 is pressed from above and the connector 4 is fitted into the rail main body 3 (FIG. 4). The radius of curvature 4r of the outer peripheral surface of the fitting portion 4a of the connector 4 is set to be larger than the radius of curvature 3r of the inner surface 32 of the recess 31 provided in the rail body 3. Therefore, similarly to the first embodiment, the recess 31 and the stepped portion 3a of the rail main body 3 and the fitting portion 4a and the flat surface portion 4b of the connecting tool 4 are fitted together without a gap. As a result, the connector 4 and each rail body 3 are positioned in the width direction and the height direction. Therefore, the ends of the rail main body 3 are positioned and aligned in the width direction and the height direction via the connector 4.

FIG. 7 is a partial cross-sectional perspective view showing a state in which a connecting tool 6 according to another embodiment (third embodiment) of the present invention is fitted to the rail body 5. With reference to FIG. 7, the sill 8 is shown by an imaginary line (two-dot chain line). The rail main body 5 is made of an elongated rod-shaped aluminum that is integrally formed by extrusion. Further, the rail main body 5 has a substantially M-shaped cross section, and has a concave portion 51 below the central portion sandwiched by the side walls 53 and 54. Bellows-shaped ridges 5a are formed on a pair of opposing inner wall surfaces of the recess 51, and a flat surface portion 5b is provided on the inner upper surface of the recess 51.

The connecting tool 6 is a bottom surface portion 6a formed of a rectangular flat plate, and a fitting that vertically rises symmetrically vertically from the bottom surface portion 6a and extends along the longitudinal direction of the rail body 1 when the rail body 5 is attached. It has a ridge 6b as a part. A pair of bellows-shaped projections 6c to be combined with the pair of bellows-shaped projections 5a of the rail main body 5 are formed on the outer wall surface of the projection 6b. The dimension in the width direction of the bottom surface portion 6a of the connecting tool 6 is matched with the dimension of the groove width of the sill 8 so that the connecting tool 6 fits snugly in the sill groove 8b. Further, the connecting tool 6 is fixed to the groove bottom of the sill 8 using the screw 61.

As a construction method, first, the connector 6 is pushed into the sill groove 8b and fixed to the sill groove 8b with the screw 61. The rail main body 5 is pushed in from above the connector 6 fixed in this way to be fitted with the connector 6. At this time, a spacer 9 may be used between the rail body 5 and the connecting tool 6 (FIG. 7). The spacer 9 is made of rubber or the like and is used as a height adjusting means for adjusting the height between the upper surface 8a of the sill 8 and the upper surface 52 of the rail body 5. As a result, similarly to the first and second embodiments described above, the connector 6 and each rail body 5 are positioned in the width direction and the height direction. Therefore, the ends of the rail main body 5 are positioned and aligned in the width direction and the height direction via the connecting tool 6.

Further, the height adjustment of the upper surface 8a of the sill 8 and the rail main body 52 may be performed by the following method. Referring to FIG. 8, a tap hole A is vertically provided at the center of the rail body 5, and a hexagon socket set screw B is screwed into the tap hole A. After the hexagon socket set screw B 1 hits the bottom surface 6a of the connecting tool 6, and further screwing in the screw B, the rail body 5 moves upward with respect to the connecting tool 6, and the upper surface of the rail body 5 The height of 52 and the upper surface 8a of the sill 8 match. That is, by adjusting the distance between the connector 6 and the rail body 5 by using the hexagon socket set screw B as the height adjusting means, the upper surface 52 of the rail body 5 with respect to the upper surface 8a of the sill 8 is adjusted. The height can be adjusted, and the heights of the upper surface 8a of the sill 8 and the upper surface 52 of the rail body 5 can be adjusted more easily than when the spacer 9 is used.

Further, in the above embodiment, the rail main body 5 is provided with the convex stripes and the connecting tool 6 is provided with the concave stripes. On the contrary, the rail main body 5 is provided with the concave stripes and the connecting tool 6 is provided with the convex stripes. Articles may be provided. Besides, various design changes can be made without changing the gist of the present invention.

[0019]

[Effect of device]

 According to this invention, when the end portions of the pair of door roller rail main bodies are butted to each other to form a door roller rail having a predetermined length, a step or a shift between the end portions of the butted door roller rail main bodies is prevented. be able to. Therefore, the door roller can move smoothly, and the generation of noise and vibration can be suppressed. Pulling can significantly extend the life of the door roller and eliminate the discomfort caused by noise and vibration when opening and closing the door.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view of a door wheel rail connector according to a first embodiment of the present invention in a state of being fitted to a door wheel rail main body.

FIG. 2 is a perspective view of a door roller rail connector according to the first embodiment.

FIG. 3 is a sectional view of a door roller rail main body according to the first embodiment.

FIG. 4 is a partial cross-sectional perspective view of the door wheel rail connector according to the second embodiment of the present invention fitted to the door wheel rail body.

FIG. 5 is a sectional view of a door rail connecting device according to a second embodiment.

FIG. 6 is a sectional view of a door roller rail main body according to a second embodiment.

FIG. 7 is a partial cross-sectional perspective view of the door roller rail connector according to the third embodiment of the present invention in a state of being fitted to the door roller rail main body.

FIG. 8 is an explanatory view of a distance adjusting means between a door rail body and a door rail connector according to a third embodiment of the present invention.

[Explanation of symbols]

 1,3,5 Door rail body 2,4,6 Door rail connector 7,8 Sill A Tap hole B Hexagon socket set screw

Claims (1)

[Scope of utility model registration request] 1. A door roller rail connector for connecting a pair of door roller rail main bodies that are inserted into a sill groove with their ends abutted against each other, and are fitted to predetermined portions of each door roller rail main body. In the state, the door wheel rail connector is provided with a fitting portion for aligning the ends of the door roller rail main body with each other.