JPH0214616Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a self-closing sliding door, and more particularly to the structure of a device for attaching a fixed pulley and a steady rest door pulley of an automatic closing device.

Sliding doors are usually provided with suitable anti-steady means. In the door wheel type steady rest means, door wheels are attached to both ends of both vertical frames of the sliding door by vertical shafts, and the door wheels can slide on the side walls within the upper frame. If such a sliding door is equipped with an automatic closing device using a pulley and weight,
Since the door wheel for the steady rest is present at the upper end of the stile, it is difficult to secure a mounting space for the automatic closing device, and if the door wheel and pulley are each mounted independently, the structure of the mounting portion becomes complicated.

Therefore, an object of the present invention is to provide an effective means for attaching a steady rest door pulley and an automatic closing pulley. Based on the above purpose, the present invention fixes a door wheel metal fitting to the upper part of the fixed pulley metal fitting, and rotatably supports the door wheel for steady rest with this door wheel metal fitting, so that the rope wrapped around the fixed pulley can be fixed. This prevents the pulley fittings from coming off and prevents elastic deformation of the pulley fittings.

Hereinafter, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

First, FIG. 1 shows a door frame 1 and double-sliding type sliding doors 2 and 3. Door frame 1 has left and right vertical frames 4,
An upper frame 6 and a lower frame 7 are combined above and below the frame 5 in a rectangular shape. In addition, the sliding doors 2 and 3 have an upper stile 12 between the left and right stiles 8, 9, 10, and 11, respectively.
13 and lower frames 14 and 15 are combined into a rectangular shape, one sliding door 3 is fixedly provided on the right side of the door frame 1, and the other sliding door 2 is
It is located on the left side of the door frame 1 when closed, and is configured to automatically close after manual opening by an automatic closing device 16.

Permanent magnets 17 and 18 are attached to the opposing parts of the vertical stile 9 and the vertical frame 5, and when the sliding door 2 is opened, both permanent magnets 17 and 18 attract each other and the sliding door 2 automatically opens. This prevents a major closure.
When the operator biases the sliding door 2 in the direction of closing, the permanent magnets 17 and 18 are released, so the sliding door 2
Due to the action of the automatic closing device 16, it moves in the closing direction, but the buffering effect at that time is due to the upper stile 1 of the sliding door 2.
This is achieved by an air-type damper 19 attached to 2.

FIG. 2 shows the structure of the air damper 19. That is, the damper 19 is horizontally attached to the upper stile 12 by a mounting bracket 20, and its piston shaft 21 is provided with an iron piece 22 at the tip. Also, on the inside lower surface of the upper frame 6 there is a receiving metal fitting 2.
3, a permanent magnet 24 is attached. The permanent magnet 24 and the iron piece 22 attract each other when the sliding door 2 is in the closed state. Piston shaft 21
The damper 19 always protrudes from the damper 19, but due to the restriction of the discharged air inside the damper 19, when it receives an external force, it retreats at a slow speed.

Now, the automatic closing device 16 is shown in FIGS. 3 to 6.
As shown in the figure. This automatic closing device 16 is composed of a fixed pulley 25, a movable pulley 26, a weight 27, and a rope 28. The fixed pulley 25 is the vertical stile 8
The movable pulley 26 is rotatably supported by a horizontal shaft 29 attached to a pulley fitting 30 inside the weight 27, and the movable pulley 26 is rotatably supported by a horizontal shaft 32 and a fitting 31 attached to the upper part of the weight 27. is supported by The weight 27 is supported inside the vertical stile 8 so as to be slidable in the vertical direction. Further, the rope 28 is fixed at one end to the lower end portion of the pulley fitting 30 by a rope fixture 33, and the movable pulley 28
After being wrapped around the fixed pulley 25, the rope is guided to the outside of the sliding door 2, and is fixed to a rope fixture 35 of a mounting bracket 34 attached to the inner surface of the vertical frame 4.

The above-mentioned pulley fitting 30 is configured such that mounting plates 37 are integrally provided on each upper end of a housing main body 36 having a substantially U-shape, and extend horizontally toward the left and right outside, and the end edges of each mounting plate 37 are provided integrally with each other. A locking plate 38 that rises upward and a locking claw 39 that bends outward are integrally formed on the portion. The housing main body 36 is elastically deformed in the direction in which the pair of opposing locking plates 38 approach, and is inserted from above to the bottom of the vertical stile 8, and the locking claws 39 engage the vertical stile 8. It is locked at the top end. In this state, the fixed pulley 25 receives the gravity of the weight 27, so the pulley fitting 30 does not come off the upper end of the vertical stile 8.

And the door wheel 40 for steady rest is the door wheel metal fitting 41
It is rotatably supported with respect to a vertical door axle shaft 42 fixed to. This door roller metal fitting 41 is bent into a substantially Ω-shape, fits between the opposing locking plates 38, and is mounted with screws 43 while being placed on the upper surface of the mounting plate 37. In this installed state, the steady rest door roller 40 protrudes from the notch 44 formed in the center of the locking plate 38,
It is in contact with the wall surface of the guide groove 45 of the upper frame 6.

Note that the door frame 1 shown in FIG. 1 includes two transoms 46. In other words, the left and right vertical frames 4 and 5 are the upper frame 6.
It protrudes slightly upward and is connected to an auxiliary upper frame 47 in the horizontal direction. A vertical hanging bundle 48 is fixed between the upper frames 6, 47, and each transom 46 is connected to the upper frames 6, 47 as shown in FIG.
and the groove 4 of the upper frame 6, 47 between the vertical frames 4, 5.
It is fitted in the 9,50 part in a Kendon style. The transom 46 has left and right frame members 51, 52 and upper and lower frame members 53, 54 framed in a rectangular shape, and four picture frame members 55, 56 connected to each other by diagonally cut corners at the inner portions, that is, clasps. ,5
7, 58, and the frame materials 55, 56, 5
A plate glass 60 is fitted between the frame members 7, 58 and the frame members 51, 52, 53, 54 using a glass presser 59. The illustrated transom 46 includes a large number of vertical grids 61, as clearly shown in FIG. These vertical lattices 61 are connected to the upper and lower frame materials 57,
It is fixed between 58 and 58.

Next, the effect will be explained. Since the weight 27 always tends to descend due to its gravity, the rope 28
The sliding door 2 is drawn toward the vertical frame 4. Therefore, the sliding door 2 is in a closed state due to the function of the automatic closing device 16. Then the operator weighs the weight 27
When the sliding door 2 is moved in the opening direction by overcoming the gravity of , the weight 27 rises inside the vertical stile 8,
Allow sliding door 2 to open. When the sliding door 2 is fully open, the permanent magnets 17 and 18 attract each other, so the sliding door 2 does not automatically close. When the operator pulls the sliding door 2 in the closing direction in this state, the attraction of the permanent magnets 17 and 18 is released.
Sliding door 2 closes automatically. When the sliding door 2 closes, the sliding door 2 may collide with the vertical frame 4 of the door frame 1 because the weight 27 is accelerated by the acceleration of gravity in the process of descending. Then, just before the sliding door 2 completely closes, the piston shaft 2 of the damper 19
1 hits the permanent magnet 24 at the iron piece 22,
Thereafter, the damper 19 gently retreats the piston shaft 21 by the aforementioned limited air discharge action. Therefore, the sliding door 2 closes at a slow speed just before the fully closed state. Note that when the piston shaft 21 hits the permanent magnet 24, the sliding door 2 is moved due to the elastic action of the air inside the damper 19.
The iron piece 22 tries to bounce back, but the permanent magnet 2
4, the rebound phenomenon is prevented by their adsorption.

During such opening/closing operations, it is predicted that the rope 28 will temporarily loosen and come off the groove of the fixed pulley 25, but the door roller metal fitting 41 is close to the top surface of the fixed pulley 25, preventing the rope 28 from coming off. Because I have
The rope 28 can be reliably prevented from coming off. Note that this door roller metal fitting 41 is formed in an Ω shape as an example, but if the mounting plate 37 is formed at a position slightly above the upper end portion of the fixed pulley 25, this door roller metal fitting 41
can be constructed as a simple flat plate. Moreover, since this door roller metal fitting 41 fits between the pair of locking plates 38 and presses them strongly against the inner wall surface of the vertical stile 8, the U-shaped housing main body 36 and the pair of locking plates 38 , does not elastically deform in the direction of narrowing the distance between them, and therefore, this pulley metal fitting 30 is firmly fixed inside the vertical stile 8 and does not come off from them even when subjected to impact.

In the present invention, since the door roller metal fitting is organically combined with the pulley metal fitting, the mounting parts of the steady rest stop and the fixed pulley for automatic closing are not complicated.
In addition, since the door wheel metal fitting approaches the top surface of the fixed pulley and does not create a space for the rope to come off, it is possible to reliably prevent the rope from coming off. Since it is pressed against the wall surface, elastic deformation of the pulley metal fitting in the direction of dislodgement can be reliably prevented, and therefore, even when an impact occurs, the pulley metal fitting can be reliably prevented from coming off.

[Brief explanation of the drawing]

Figure 1 is a front view of the self-closing sliding door and door frame, Figure 2 is an enlarged front view of the damper section, Figure 3 is a partially cutaway front view of the automatic closing device, and Figure 4 is a front view of the self-closing sliding door and door frame.
The figure is a sectional view taken along the - line in Figure 3, Figure 5 is a plan view of the steady rest door roller part, Figure 6 is an exploded slope view of the pulley metal fittings and door wheel metal fittings, and Figure 7 is a vertical cross-sectional view of the transom. , FIG. 8 is a horizontal sectional view of the transom. 1...Door frame, 2,3...Sliding door, 16...Automatic closing device, 25...Fixed pulley, 26...Moving pulley, 27
... Weight, 28 ... Rope, 29 ... Shaft, 30
...Pulley metal fittings, 36...Housing body, 37...
...Mounting plate, 38...Latching plate, 39...Latching claw, 4
0...Door wheel, 41...Door wheel metal fittings, 42...Door axle.

Claims (1)

[Scope of utility model registration request] A fixed pulley is rotatably mounted on a substantially U-shaped housing body by a horizontal shaft, and a horizontal mounting plate is provided at each upper end of the housing body to project outward, and the end edge of each mounting plate is provided. A locking plate that rises upwards and is latched to the upper end of the sliding door is integrally formed to constitute a pulley metal fitting, and a door wheel metal fitting is fixed on both of the mounting plates in a state close to the fixed pulley. Installation of a fixed pulley for a self-closing sliding door and a door roller for a steady rest, characterized in that the door roller for a steady rest is rotatably mounted to be guided to a door frame by a vertical door wheel shaft fixed to a door wheel metal fitting. Device.