JPS5940541Y2 - door wheel - Google Patents

Description

[Detailed description of the invention] This invention is a new structure for door rollers that can be attached to metal sliding doors such as aluminum rain shutters, which can be easily installed and removed from the outside of the lower stile. It was devised as a way to get around the door.

This door wheel has two inverted-shaped locking pieces protruding from the top surface of a rectangular cylindrical frame that supports the wheels, and one of the locking pieces passes through the horizontal part of the lower stile of an H-shaped cross section. A hole that prevents the passage of the other locking piece and a hole that does not allow the frame 4 to pass through is provided so that the horizontal part 4 of the lower frame is sandwiched between the frame and both locking pieces, and the outer side of the frame is A protrusion is formed on the lower surface of one of the locking pieces facing towards the door to resiliently engage with a third hole drilled in the horizontal part of the lower frame to prevent the door roller from moving laterally.

Next, the illustrated embodiment will be described.

Figure 1 shows a disassembled state of the door roller 4 of the present invention, and two wide sides of the rectangular cylindrical frame 2 of the main body 1 have holes 5z for inserting wheels 3 and wheels 4 rotatably supported, respectively. A first locking piece 6 and a second locking piece 7, which are bent in the same direction in an inverted letter shape, are formed on the upper surfaces of the two narrow sides.

A locking protrusion 8 is formed on the lower surface of the first locking piece 6, and a rail (not shown) is formed on the frame 2 below each locking piece 6, I.
A 9-karat gold notch is formed to pass through.

If the rail does not have a protrusion, the cutout 9 is not necessary.

The main body 1 provided with the locking pieces, protrusions, holes, and notches can be easily made by molding an elastic synthetic resin.

To assemble the door wheel, insert the wheel 3 into the frame 2 in the same way as usual, and insert it into the wheel 4 hole 5 and the center hole of the wheel 3.
The door wheel is assembled.

The length of the wheels 4 should be such that they do not protrude significantly from the frame 2 when assembled.

FIG. 2 also shows the lower stile 10 of the door having an H-shaped cross section, to which the door roller formed as described above is attached.

The horizontal part 11 of the lower stile 10 has a first hole 12 which is smaller than the upper frame part 2 and through which the first locking piece 6 and the wheel 3 can pass, and the second hole 12. A second hole 13 through which the second locking piece 7 is passed through, which is more disposed than the hole 12, and a third hole 14 through which the locking protrusion 84 on the lower surface of the locking piece 6 is engaged. It is drilled.

Distance L' between the side edge 12a of the first hole 13 closer to the third hole 14 and the side edge 13a of the second hole 13 closer to the first hole 12
are the front surface 6b of the leg 6a of the locking piece 6 (the surface that sometimes comes into contact with the side edge 12a when attached to the lower stile 10) and the front surface 7b of the leg 7a of the locking piece I (also the side edge). 13a)
Form the distance equal to the distance.

Additionally, the distance l' between the first hole 12 and the third hole 14 is set equal to the distance 1 from the front side surface 6b of the leg of the first locking piece 6 to the locking protrusion 8.

Since the door wheel and lower stile are constructed in this way, as shown in Fig. 3, from below the horizontal part 11 of the lower stile, insert the door wheel at a slight angle into the 10th locking piece 6 and the wheel 3rd hole 12. Next, insert the second locking piece 7 into the second hole 13 (Fig. 4), push the entire door wheel completely upwards and move it to the left, and the locking protrusion 8 will lock into the third position as shown in Fig. 5. The door roller can be fixed to the horizontal part 11 of the lower stile by engaging with the hole 14 of the door.

That is, when the door roller is pushed up, the upper surface of the frame 2 hits the edge of the first hole 12 and is stopped, and when it is pulled down, the locking piece 6.7 hits the edge of the first hole 12.13.
When the door wheel goes to the left, the leg of the locking piece 6.7 hits the edge of the hole 12.13 and stops, and when the door wheel goes to the right, the locking protrusion 8 hits the edge of the third hole 14. The main body 1 of the door roller is fixedly attached to the horizontal part 11 of the lower stile by being stopped against the edge.

Since the folded main body 1 is molded from an elastic synthetic resin and the locking piece 6 can be bent slightly elastically, the above-mentioned addition can be carried out smoothly.

To remove the entire door from the lower stile, insert a tool 4 such as a screwdriver into the third hole 14 from below the lower stile, bend the first locking piece 6 elastically slightly upwards, and press the locking protrusion 8. The entire door can be easily removed from the lower stile by pushing it up through the third hole 14, moving the main body 1 to the right at the same time, and pulling out the 20th locking piece 7 from the second hole 13.

As mentioned above, the proposed door roller has three holes 1 in advance in the lower stile 10.
2.13.14 Just place the metal protrusion and write a triangle below the lower frame 10 -
It can be attached to and removed from the lower stile with simple operations, and there is no need to remove the door roller from the lower stile 4 doors, replace the door roller, and assemble it into the lower stile 4 doors when the door roller breaks down. Therefore, the effect of Mitagami is large.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of the proposed door roller, Figure 2 is a perspective view of the mounting part of the door roller on the lower stile, Figures 3 and 4 are surface measurements showing the intermediate stages of mounting the door roller to the lower stile, and Figure 5. 6 is a side view of the door roller attached to the lower stile, and FIG. 6 is a plan view of the same. 2...Frame part, 3...Wheel, 6...
...First locking piece, 7...Second locking piece, 8.
...Locking protrusion, 10...Lower stile, 11...
...Horizontal part, 12.13.14...First to third holes.

Claims (1)

[Scope of utility model registration request] On the upper end surface of each of the two opposing narrow sides of the rectangular cylindrical frame part 2 which rotatably supports the wheels 34 inside, there is a leg part 6a having an inverted letter shape and having a width narrower than each side.
, 6b, which is equal to the thickness σ of the horizontal part 11 of the metal lower stile,
A 10th locking piece 6 bent outward of the frame 2 and a 20th locking piece 7 bent inward of the frame 2 in the same direction as the 10th locking piece 6.
A first hole 12, a second hole 13 and a third hole 14 sandwiching the second hole 12 are bored in the horizontal part 11 of the lower stile, and both locking holes are provided. Each leg 6a of pieces 6 and 7, ?
Distance Lff between front one-law surfaces 6b and 7b of a:, first hole 1
The distance L' between the survey line 12a near the third hole 14 of the second hole 13 and the first wound edge 13a near the first hole 12 of the second hole 13 is equal to the distance L', and the frame portion 2 is inserted into the lower stile 10. is larger than the first hole 12 through which the wheel 3 and the first locking piece 6 pass, and the second hole 13 is large enough to allow the second locking piece 7 to pass through. A locking protrusion 8 is formed on the bent lower surface of the locking piece 6, and the distance l between the front surface 6b of the leg of the locking piece 6 and the locking protrusion 8 is purple;
The door roller is formed to be equal to the distance l' between the first hole 12 and the third hole 14.