JPS6212774Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door roller device used for sliding doors such as screen doors.

The door roller device shown in FIG. 1, which is a vertical sectional view, and FIG. 2, which is a view taken along the - arrow in FIG. Bent locking part 4
is engaged with a downwardly opening groove 6 of the lower frame 5 to prevent the door wheel 1 from coming off the upper surface 7 of the lower frame. This kind of structure is currently being adopted in some door roller devices, and has the advantage that the upper surface 7 of the lower frame can be made flat, that is, there is no need to provide a groove on the upper surface 7 for the door roller to run, so there is no risk of dust accumulating on the upper surface 7. It has the advantage of not having However, guide 3 has screw 9.
is fixed to the housing 2 in a vertically adjustable manner, and the housing 2 is fixed to the screen door frame 11 with screws 8.
Conventionally, when installing fittings, the guide 3 is lowered by first loosening the screw 9, and in this state, the door roller 1 is moved to the upper surface 7.
, then loosen the screw 8 and lift the guide 3 by hand to adjust the vertical position of the door roller 1 (housing 2) and guide 3, and then tighten both the screws 8 and 9 again, which makes the work time-consuming. There is a problem that it takes.

In order to solve the above-mentioned conventional problems, this invention
A biasing mechanism is provided to bias the anti-removal guide upward, so that the guide can be pulled upward in the non-fixed state.This will be explained with reference to the drawings as follows.

In FIG. 3, which is a perspective exploded view, the door wheel housing 2 is a metal fitting that extends vertically and is fitted into the lower end of the vertical stile 11 of the screen door. ) It has a U-shaped cross section that is open towards the end. 15 and 16 are lower stile 12
A pair of door roller housing portions 17 are parallel to the longitudinal direction (driving direction of the door roller), and a door roller housing portion 17 is perpendicular to both portions 15 and 16. A plate-shaped support piece 19 that enters into the lower stile 12 projects integrally from the lower part of the portion 15, and the door wheel 1 is rotatably supported by the support piece 19 via a support shaft 20.

The guide 3 has a vertically long portion 2 having a U-shaped cross section.
1 and a portion 23 extending downward from the lower end of the portion 21 via a step portion 22 in the middle.
The lower end of the portion 23 is horizontally bent, and the horizontal bent portion 2
The part 2 bent upward from the tip of 5 as shown in Figure 1.
A piece 27 made of synthetic resin or the like is fitted and fixed to 6 to form a locking portion 4 .

Portion 21 is vertically slidably fitted within housing portions 15, 16, 17. Part 15,1
At the bottom of 7 are vertically long long holes 30 and 31, respectively.
The portion 21 is provided with a guide pin 32 that fits into the elongated hole 30. The elongated hole 31 is for passing the guide fixing screw 9, and the screw 9 is connected to the part 21.
The guide 3 is screwed into the hole 35 provided in the housing 2 to fix the guide 3 to the housing 2. The lower end of a tension coil spring 36 is hooked to the upper end of the portion 21.
The spring 36 passes through the sections 15, 16, and 17, and its upper end is latched to a hook 37 that is integral with the section 17. The hooking portion 37 is formed by cutting and bending a part of the portion 17, and the adjustment screw 8 is inserted into a vertically elongated hole 38 formed in the portion 17 by the cut and bending. In FIG. 2, screws 8 are screwed into holes and pin grooves (both not shown) in the vertical stile 11 and the lower stile 12 to fix the housing 2 to the vertical stile 11. Further, the vertical stile 11 and the lower stile 12 are fixed to each other by screws 8.

Explain the work of installing a screen door. First, before construction, the screw 9 is loosened, the guide 3 is pulled up by the spring 36, and the first
As shown in the figure, the stepped portion 22 is in contact with the lower edge of the housing 2. Further, the housing 2 is fixed to the vertical frame 11, for example, at the highest position.

The screen door assembled in the above state is installed in the order shown in Figures 4, 5, and 6, and the groove 40 on the upper edge of the screen is fitted into the rail 42 of the upper frame 41, and the door roller 1 is lowered. It is placed on the top surface 7 of the frame. During this operation, the guide 3 is pressed down with a finger as indicated by arrow F in FIG. 5 so that the locking portion 4 passes below the outer side wall 43 of the groove 6 (the downwardly bent portion of the lower frame 5). When the screen door is installed and the locking part 4 reaches the bottom of the groove 6, release your finger and release the spring 36 (Fig. 1).
The elasticity causes the guide 3 to rise and the locking part 4 to enter into the groove 6.

Next, loosen the screw 8 shown in Figure 1 and remove the vertical stile 11 and the lower stile 1.
2 (FIG. 2), the vertical position of the screen door as a whole is adjusted, and after adjustment, the screw 8 is tightened to fix the housing 2 in a predetermined position. Even after tightening screw 8, guide 3
is pulled by the spring 36 and is in the uppermost position, and if there is an appropriate gap between the horizontal bent part 25 and the groove side wall 43 as shown in FIG. Tighten the screw 9 to fix the guide 3 to the housing 2. In addition, when the horizontal bent portion 25 is in contact with the lower edge of the side wall 43, the guide 3 is moved until an appropriate gap is created between the two.
Tighten screw 9 while pressing down.

As explained above, the present invention is constructed as follows.

That is, the present invention forms a generally horizontal upper surface 7 and a downwardly opening groove 6 located on the lower side of one side of the upper surface 7 with the lower frame 5 for a sliding door, and a door roller that runs on the upper surface 7 is formed. 1 is supported by the door roller housing 2, and the door roller housing 2 is fixed to the stile of the sliding door so that the vertical position can be freely adjusted. ), and the protrusion (22,
23, etc.), and a locking part 4 that enters the downwardly opening groove 6 from below is provided at the tip of the protruding part, and the protruding part is provided with a locking part 4 that enters the downwardly opening groove 6 from below, and a locking part 4 that enters the downwardly opening groove 6 from below is provided at the tip of the protruding part. It is characterized by providing an operating part (step part 22) that protrudes toward the top and a biasing mechanism (spring 36) that biases the anti-removal guide 3 upward.

According to the above configuration, when installing the screen door, the fifth
As shown in the figure, the locking part 4 can be inserted into the groove 6 by simply pushing down the guide 3, and the adjustment work can be completed by simply adjusting and fixing the position of the housing 2 and guide 3 after construction. Therefore, compared to the conventional case where the position of each part is adjusted while lifting the guide 3, the work can be simplified, and the work can be performed accurately to improve the dimensional accuracy of the product.

Furthermore, according to the above configuration, the door roller device is basically composed of only two elements (namely, the door roller housing 2 and the stopper guide 3), and the door roller housing 2 can only be adjusted in position in the vertical direction with respect to the stile. It is only necessary to attach it freely, and the retaining guide 3 only needs to be attached to the door roller housing 2 so that its position can be adjusted in the vertical direction. Therefore, the structure is simple.

In addition, the guide 3 is always urged upward by the spring 36, and the locking part 4 will not come out of the groove 6 unless the operating part (step part 22) is operated, so it is ensured that the sliding door will not come off by mistake. can be prevented.

Moreover, since the operation part (step part 22) is exposed on the outside of the groove side wall 43, the guide 3 can be easily operated when installing or removing the sliding door.

Note that instead of the coil spring 36, a leaf spring may be arranged between the portion 21 and the base end of the support piece 19. The present invention can be applied to sliding doors other than screen doors.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the embodiment of the present invention, Fig. 2 is a view taken in the direction of - arrow in Fig. 1, Fig. 3 is an exploded perspective view, and Figs. 4 to 6 are vertical sectional views showing the construction procedure. It is a cross-sectional schematic diagram. 1... Door roller, 2... Door roller housing,
3... Removal guide, 5... Bottom frame, 6... Groove,
7... Upper surface of the lower frame, 36... Spring (biasing mechanism).

Claims (1)

[Scope of utility model registration request] The lower frame for the sliding door forms a generally horizontal upper surface and a downwardly opening groove located on the lower side of one side of the upper surface, and supports the door roller running on the upper surface with the door roller housing. It is fixed to the stile of the sliding door so that its vertical position can be adjusted freely, and a retaining guide is fixed to the door roller housing in a state where the vertical position can be adjusted freely and the fixed state can be released, and the retaining guide is provided with a protrusion that protrudes to the bottom of the groove. , a locking part that enters the downwardly opening groove from below is provided at the tip of the protruding part,
A door wheel device characterized in that the protruding portion is provided with an operating portion that protrudes laterally than the stile of the sliding door, and a biasing mechanism that biases the retaining guide upward.