JPH0420132Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a door roller structure that movably supports a sliding sash and other sliding or folding doors.

(Prior art) Usually, multiple shoji installed on a window are configured to open and close the window by sliding them on different sides, so the frame supporting the shoji has at least the estimated size of two shojis. However, as the shoji itself has become thinner in recent years, each shoji, which normally operates in a sliding state, is supported flush in series when the window is closed, and the expected dimensions of the frame have been reduced. It has been proposed that the width be narrower than the thickness of two shoji screens. Since the prospective dimensions of the frame of such shoji are narrow, at least one of the shoji is supported in a state protruding from the frame.

(Problem to be solved by the invention) Therefore, in the above configuration, the door roller that moves on the frame and the shoji that is supported by the door roller are shifted in the front and back direction of the window, and the center of gravity of the shoji is shifted above the door roller. Since the shoji is not positioned, there is a problem that it rattles during the sliding operation or that the shoji easily comes off the frame. Therefore, a plurality of door rollers are rotatably supported on the door axle fixed to the lower stile of the shoji, and the upper edge of one of the door rollers is engaged with the first rail, and the lower edge of the other door roller is engaged with the second rail. A shoji that engages with a rail has been proposed, but in such a support device, when the shoji is moved along the rail, a door roller that engages with a first rail and a door roller that engages with a second rail are used. Since the two-door cars rotated in the opposite direction, there was a risk that the two-door cars would rub against each other and make abnormal noises.

Structure of the invention (means for solving the problems) In order to solve the above problems, this invention rotatably supports a plurality of door wheels 16 and 17 on a door axle 31 fixed to the lower stile 1b of the sliding door 1. One door wheel 16 has its upper edge engaged with the first rail 35, and the other door wheel 17 has its lower edge engaged with the second rail 35.
In the sliding door engaged with 6, a spacing member 33 is interposed between the door roller 16 whose upper edge is engaged with the first rail 35 and the door roller 17 whose lower edge is engaged with the second rail 36. The configuration is as follows.

(Function) By the above means, the door roller 16 whose upper edge is engaged with the first rail 35 and the door roller 17 whose lower edge is engaged with the second rail 36 are always kept at a constant distance by the spacing member 33. They are secured and do not rub against each other.

(Embodiment) Hereinafter, an embodiment embodying this invention will be described with reference to the drawings.As shown in Fig. 2, a shoji 1,
The blinds 2 are configured to slide in the window frame 3 respectively, and a blind 5 is suspended from the back side of the glass 4 of each shoji 1 and 2 (see FIG. 1). , 2, the angle of the slat 9 can be adjusted via a ladder cord 8 by operating an operating knob 7 provided in the handle 6 of the slat 9. Note that a pair of sliding shojis (not shown) are usually further disposed on the outside of each shoji 1 and 2 (on the left side in FIG. 1), and together with the shojis 1 and 2, they constitute a double sash.

A handle 10a is attached to the vertical stile 1a of one shoji 1,
10b are rotatably provided, and by moving the shoji 1 backward, that is, to the outside of the window from the state where the window is closed with both shoji 1 and 2 as shown in FIGS. 2 and 3, the state shown in FIG. Both shoji 1 and 2 as shown
are supported in series within the window frame 3. From this state, the handles 10a, 1
When 0b is rotated in the vertical direction shown in FIG. 2, locking pieces 11a, 11b, and 11c are projected from the upper frame 3a of the window frame 3, the vertical frame 3b, and the vertical stile 2a of the other shoji 2, respectively. , the shoji 1 is fixed to the window frame 3 and the other shoji 2.

Next, the structure for supporting the shoji 1 and 2 in series within the window frame 3 will be explained. A guide member 14 that moves on a main rail 13 provided on the upper frame 3a and projects upward from the upper frame 2c moves within a guide recess 15 of the upper frame 3a. Therefore, the shoji 2 has a main rail 13 inside the window frame 3.
It is supported so that it can move only in the left and right direction along the .

The shoji 1, which moves in the front-rear direction with respect to the shoji 2, has a second door roller 16 and a third door roller 17, which move only in the left-right direction of the window on the lower frame 3c, attached to both left and right sides of the lower stile 1b. The detailed structure will be explained next. As shown in FIGS. 5 and 6, the mounting member 18 for attaching the second and third door wheels 16, 17 to the lower stile 1b is formed into a square frame shape. The center portion of the upper piece is bent upward to form a mounting portion 19, and mounting pieces 20 are protruded from both left and right sides. Then, the mounting portion 19 and the mounting piece 20 are attached to the screw 2.
1 and is fixed to the lower frame 1b.

A fixed support shaft 22 is fixed to one side of the mounting member 18, and a seventh shaft is fixed to the upper and lower pieces of the other side of the mounting member 18.
As shown in the drawings and FIG. 8, an arcuate guide groove 23 is formed around the fixed support shaft 22. Between the guide grooves 23, a mounting cylinder 24 with a thread carved on the inner circumferential surface is disposed, and an adjustment screw 25 is screwed into the mounting cylinder 24 from above through the guide groove 23, and from below. Similarly, the rotation support shaft 26 passes through the guide groove 23.
is inserted, and a door wheel case 27 for supporting the second and third door wheels 16, 17 is fixed to the lower end of the pivot shaft 26. By adjusting the amount of screwing of the adjusting screw 25 into the mounting tube 24, the length of the rotation support shaft 26 exposed from the mounting member 18 can be adjusted. The distance from the frame 3c can be adjusted.

The fixed support shaft 22 and the mounting tube 24 are rotatably fitted to both ends of an elongated cylindrical connecting body 28.
Therefore, as shown in FIGS. 8 and 9, the rotation support shaft 26 is movable along the guide groove 23 with the fixed support shaft 22 as the center. A cam protrusion 29 is formed on the outer peripheral portion of the fixed support shaft 22 of the connecting body 28, and a leaf spring 30 that protrudes in a chevron shape from the inner surface of the mounting member 18 is engaged with the cam protrusion 29. Due to the shape of the cam protrusion 29 and the leaf spring 30, and the urging force of the leaf spring 30, the rotation support shaft 26 is always connected to the guide groove 2 through the connecting body 28, as shown in FIGS. 8 and 9. It is designed to be held at both ends of the

The door roller case 27 has second and third door rollers 16,
The base ends of a pair of door axles 31 for supporting the main rail 17 are fixed, and the distal ends of the door axles 31 protrude toward the main rail 13. Second and third door wheels 16 and 17 are rotatably supported at the tip of the door axle 31. Its detailed structure is shown in the 10th
To explain according to the figure, a sliding tube 32 molded from synthetic resin is fitted to the tip of the door axle 31 so as to be movable in the axial direction, and a middle portion of the sliding tube 32 is fitted as a spacing member. A flange 33 is formed. And the second door roller 16 and the third door roller 17
is rotatably fitted into the sliding tube 32 in a state where it is divided into front and rear portions of the flange 33.

A cover member 34 molded from synthetic resin is fitted to the tip of the door axle 31, and the tip of the door axle 31 is positioned within the cover member 34 so as not to come into contact with the main rail 13.

The second door wheel 1 supported on the tip side of the door axle 31
6 is formed to have a slightly smaller diameter than the third door roller 17, and the second door roller 16 moves along the first auxiliary rail 35 extending diagonally downward from the upper part of the main rail 13, 17 is adapted to move along a second sub-rail 36 extending upward from the lower frame 3c. Therefore, when the shoji 1 is moved along the first and second auxiliary rails 35, 36, the second and third door wheels 16, 17 move while rotating in opposite directions.

When the window is closed with the shoji 1 and 2 shown in FIG. 2, the main rail 13 at the position opposite to the second and third door wheels 16 and 17 of the shoji 1 has an insertion hole 37 as shown in FIG. is formed, and when the shoji 1 is pushed out from the indoor side to the outdoor side in the direction of arrow A in FIG. The stile 1b is adapted to move up to the locus of movement of the lower stile 2b of the shoji 2.

The upper stile 1c of the shoji 1 is attached to the window frame 3 as shown in Figure 1.
It is supported by a support device 38 on the upper frame 3a of
Like the lower stile 1b, it is supported so as to be movable along the movement trajectory of the shoji 2.

Next, the operation of the shoji 1, 2 configured as described above will be explained.

Now, as shown in FIG. 3, these shoji 1 and 2 can be opened and closed by sliding the windows in the same way as a normal shoji. At this time, the handles 10a, 10b of the shoji 1 are rotated in the horizontal direction so that the locking pieces 11a, 11b, 11c do not protrude from the vertical stile 1a. When sliding the shoji 1 in this state, the second and third door wheels 16, 17
The sliders 16 and 17 roll along the first and second sub-rails 35 and 36, respectively, while rotating in opposite directions, while the double door wheels 16 and 17 are rotatably fitted into a sliding tube 32 molded from synthetic resin. Since the flange 33 rotates at a predetermined distance, the double door car 1
6 and 17 do not rub against each other and generate abnormal noise, and furthermore, by interposing the sliding tube 32, the friction between the double door wheels 16 and 17 and the door axle 31 is reduced, and the shoji 1 can be moved smoothly. And it can be operated silently.

On the other hand, since the second and third door wheels 16 and 17 are engaged with the first and second sub-rails 35 and 36 extending from above and below, respectively,
Shaking of the door axle 31 in the direction of arrow B in FIG. 5 is completely prevented. Therefore, even if the weight of the shoji 1 acts on the base end of the door axle 31 through the mounting member 18 and the rotation support shaft 26, the door axle 31 is always held in the horizontal direction and does not wobble, and the shoji 1 can be operated smoothly.

Further, since a synthetic resin covering member 34 is fitted to the tip of the door axle 31, the second door wheel 16 and the sliding tube 32 are prevented from coming off the door axle 31, and the sliding of the shoji 1 is prevented. Door axle 3 during operation
Even if 1 moves slightly in the direction of the main rail 13, the door axle 3
1 and the main rail 13 do not come into direct contact with each other,
The covering member 34 makes smooth sliding contact to prevent the generation of abnormal noise, and the shoji 1 can be slid smoothly and quietly.

After the above-mentioned sliding operation, as shown in Fig. 2, from the state where the window is closed with the shoji 1 and 2, hold the handles 10a and 10b and push the shoji 1 to the outside of the window, that is, in the direction of arrow A in Fig. 1. At this time, the mounting member 18, which is normally located in the state shown in FIG. 8, moves to the position shown in FIG. The door axle 31 passes through the insertion hole 37 and projects to the position shown by the chain line in FIG. Then, due to the movement of the mounting member 18 and the movement of the door wheel case 27 in conjunction with the movement of the door wheel shaft 31, the lower stile 1b of the shoji 1 is moved onto the movement trajectory of the shoji 2, as shown by the chain line in FIG. At the same time, the upper stile 1c is also supported by the support device 38.
Due to this action, the shoji 2 is moved onto the movement trajectory. From this state, the handles 10a, 10
By operating b, each locking piece 1 will be released as shown in FIG.
The shoji 1 can be fixed in series with the shoji 2 using 1a, 11b, and 11c.

It should be noted that this invention can be applied to sliding doors, folding doors, etc., in addition to the double-sliding sash as in the above embodiment.

Effects of the Device As detailed above, this device prevents contact between the door wheel 16 whose upper edge is engaged with the first rail 35 and the door wheel 17 whose lower edge is engaged with the second rail 36. By preventing the generation of abnormal noise, the sliding door 1
It exhibits an excellent effect that allows smooth and quiet movement and operation.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of a sliding shoji that embodies this idea, Figure 2 is a front view of the shoji, Figure 3 is a plan view showing the shoji in its sliding state, and Figure 4 is its series state. 5 is a side view showing the support structure for the shoji that moves the window in the front-rear direction, FIG. 6 is the front view thereof, FIG. 7 is the same plan view, and FIG. 8 is the installation of the support structure. Cross-sectional view of the member, No. 9
The figure is a cross-sectional view showing the operation, and FIG. 10 is a vertical cross-sectional view of the door roller portion. Shoji…1, Lower stile…1b, Window frame…3, Second door wheel…16, Third door wheel…17, Door axle…
...31, Sliding tube...32, Flange...32, First sub-rail...35, Second sub-rail...3
6.

Claims (1)

[Scope of utility model registration request] A plurality of door wheels 16 and 17 are rotatably supported on a door axle 31 fixed to the lower stile 1b of the sliding door 1, and one of the door wheels 16 has its upper edge engaged with the first rail 35, and the other door wheel 17 In the sliding door whose lower edge is engaged with the second rail 36, the door roller 16 whose upper edge is engaged with the first rail 35 and the door roller 17 whose lower edge is engaged with the second rail 36 are combined. A door roller support structure for a sliding door characterized by interposing a spacing member 33 between them.