JP2525674B2 - Arrangement structure of self-closing device in self-closing sliding door - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an arrangement structure of a self-closing device in a self-closing sliding door that automatically closes a manually opened sliding door.

[Problems to be Solved by Prior Art and Invention] Generally, in this type of self-closing sliding door, a closing force is accumulated with the opening operation of the sliding door, and the sliding door is automatically moved by the accumulated closing force. There is a so-called sliding door closer (self-closing device) that is closed. That is, in the sliding door closer, a long transmission body connected to the sliding door is suspended around the drum portion, and as the transmission body is pulled out by the opening operation of the sliding door, the sliding door closer is closed to the spiral wound machine. While the force is accumulated, after the opening operation is completed, the reverse rotation speed of the drum portion is controlled by the hydraulic mechanism so that the sliding door is automatically closed at a desired speed.

By the way, such a sliding door closer is usually provided with a speed adjusting unit (adjustment screw, etc.) for adjusting the closing speed. It is necessary to remove the inspection lid of the frame body one by one, which causes a problem in workability in adjusting the closing speed.

[Means for Solving the Problems] The present invention has been conceived with the object of providing an arrangement structure of a self-closing device in a self-closing sliding door that can eliminate these drawbacks in view of the above circumstances. Attention
An opening into which the upper end of the sliding door fits is opened in the bottom plate portion, a guide rail is laid in the upper frame body in the left-right direction, and the sliding door that is opened and closed by rolling of the hanging roller guided by the guide rail closes itself. In disposing the self-closing device for storing, the self-closing device stores the energy by the drum part on which the long transmission body connected to the sliding door is suspended and the rotation of the drum part accompanying the opening operation of the sliding door. And a closed door speed control unit for controlling the rotational speed of the drum unit that operates in reverse by the stored force, and a speed adjustment unit for adjusting the set speed of the door closing speed control unit. The self-closing device is characterized in that the self-closing device is arranged in the upper frame body so that the speed adjusting portion can be directly viewed from below the upper frame body through the opening. is there.

Further, according to the present invention, the door closing speed can be adjusted extremely easily by this configuration.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a sliding door, and a pair of roller brackets 3 and 4 for rotatably supporting a suspension roller 2 are integrally provided on an upper frame 1a of the sliding door 1, and
Is the bottom of the case 5 (upper frame) whose upper end is above the sliding door 1.
Although it is loosely fitted into the opening 5b formed in 5a, and the two hanging rollers 2 are supported by a rail body (guide rail 6) installed in the case 5 to be hung openably and closably, All of these configurations are conventional. Reference numeral 5c denotes an inspection cover which is detachably provided on the front and rear surfaces of the case 5.

The rail body 6 is formed in a vertically long rectangular tube shape and has a shape in which a rail portion 6a supporting the hanging roller 2 projects from the lower end, and a rail bracket 8 is interposed between the vertical frames 7 of the openings. However, the sliding door closer 9 and the driven pulley 10 are attached to both left and right front ends of the rail body 6, and the sliding door closer 9 and the driven pulley 10 have both ends. A toothed belt 11 connected to the roller brackets 3 and 4 is suspended.

The sliding door closer 9 has a case body 12 in which a cylinder chamber is formed, a screw shaft 13 rotatably mounted in the case body 12, an externally meshing engagement with the screw shaft 13 and a shaft core A piston 14 whose rotation is restricted, a drum 15 integrally attached to the tip of the screw shaft 13, and both ends are housed in the hollow portion of the drum 15 so as to be locked to the drum 15 side and the case body 12 side, respectively. It is composed of a swirl machine 16 and the like, and this one, when the toothed belt 11 is pulled out with the opening operation of the sliding door 1,
The drum 15 to which the toothed belt 11 is meshed is rotated to store a closing force in the spiral machine 16, and the piston 14 is moved in accordance with the rotation of the screw shaft 13 to move the rear cylinder chamber 12a. The hydraulic oil in the front cylinder chamber 12b is passed through a check valve (not shown).
Fluidize. On the other hand, when the opening operation of the sliding door 1 is completed,
Although the drum 15 is rotated in the opposite direction by the stored door closing force of the swirl machine 16, the sliding door 1 is automatically closed.
At this time, the hydraulic oil in the front cylinder chamber 12b flows into the rear cylinder chamber 12a via a speed control valve (not shown) to control the rotation speed of the drum 15 to close the sliding door 1 to a predetermined door. It is designed so that it can be closed at a speed. Also,
On the lower surface of the case 12 of the sliding door closer 9, a speed adjusting screw 1
Although 7, 18 and 19 are screwed in, these speed adjusting screws 17, 1
The closing operation speed of the sliding door 1 can be adjusted to a desired speed by changing the setting of the speed adjusting valve by the screwing operation of 8 and 19.

Reference numeral 20 denotes a mounting bracket, which is used for fixing the sliding door closer 9 to the rail body 6. The sliding door closer 9 mounted thereby has a structure in which the drum 15 has a bottom surface of the case 5. The speed adjusting screws 17, 18, and 19 are located on the portion 5 a and are located above the opening 5 b of the case 5. That is, when the sliding door 1 receives a forced closing force due to an input, the return speed of the toothed belt 11 exceeds the rotation speed of the drum 15 and the toothed belt 11
There will be slack in the case, but at this time, case 5
The bottom surface 5a is configured to receive the slack toothed belt 11.

On the other hand, a speed adjusting screw located above the opening 5b of the case 5
The rails 6a of the rail body 6 are formed so as to face the opening 5b by forming the notch 6b at the mounting portion of the sliding door closer 9, so that the speed adjusting screws 17, 18 are provided. , 19 are directly visible from below the case 5 through the opening 5b, and the door closing speed can be adjusted by inserting a tool through the opening 5b of the case 5. Reference numerals 21 and 22 are connecting fittings for connecting the toothed belt 11 to the roller brackets 3 and 4, 23 is an ammunition for maintaining the tension of the toothed belt 11, and 24 is a tooth jump of the toothed belt 11. The pressing roller is attached to the attachment bracket 20 in order to prevent the above.

In the embodiment of the present invention configured as described above, the sliding door closer 9 stores a closing force when the sliding door 1 is opened,
The sliding door 1 is pulled in the closing direction via the toothed belt 11 by the closing force. To adjust the closing speed, the inspection lid is used.
This can be easily performed by inserting the tool tip from the opening 5b of the case 5 and rotating and operating the speed adjusting screws 17, 18, 19 without removing 5c.

As described above, according to the embodiment of the present invention, a self-closing sliding door is configured using the sliding door closer 9 capable of adjusting the closing speed. Since the case 5 is installed inside, it is not exposed to the outside, the appearance is not impaired, and the exposure does not cause mischief to the inexperienced person, but the door is closed. Speed adjustment screw for speed adjustment 1
7, 18, and 19 are located above the opening 5b of the case 5 and arranged so as to be directly visible from below the case 5 through the opening 5b. Therefore, without removing the inspection lid 5c, insert a tool from the opening 5b of the case 5 to adjust the speed adjustment screw.
It is possible to rotate 17, 18, and 19, and as a result, workability in adjusting the closing speed can be improved.

The present invention is, of course, not limited to the above-described embodiment. For example, a belt or a wire without teeth may be used as the transmission body in addition to the toothed belt. .

[Advantages] In short, since the present invention is configured as described above, a self-closing sliding door is configured by using a self-closing device having a speed adjusting unit. Since the portion is arranged so that it can be directly aimed from below the upper frame through the opening for fitting the upper end of the sliding door, the door closing speed can be adjusted by inserting a tool from the upper frame opening.
Therefore, the door closing speed can be easily adjusted without the trouble of removing the inspection cover of the upper frame as in the conventional case, and as a result, the workability of the door closing speed adjustment can be improved.

Moreover, since the self-closing device itself is installed by utilizing the space inside the upper frame body without being exposed to the outside, it is not exposed to the outside and the compactness and the appearance are not impaired. You can prevent mischief.

[Brief description of drawings]

The drawings show an embodiment of an arrangement structure of a self-closing device in a self-closing sliding door according to the present invention. FIG. 1 is an overall front view of the self-closing sliding door, and FIG. -X sectional view, third
The drawings are Y-Y sectional views, FIGS. 4A, 4B, and 4C are front, side, and bottom views, respectively, of the sliding door closer, and FIG. 5 is a vertical sectional view of the sliding door closer. In the figure, 1 is a sliding door, 2 is a hanging roller, 5 is a case, 5b is an opening, 6 is a rail body, 9 is a sliding door closer, 11 is a toothed belt, 15 is a drum, 17, 18 and 19 are speed adjusting screws. is there.

Claims (1)

(57) [Claims] 1. An opening into which a top end of a sliding door fits is opened in a bottom plate, a guide rail is laid in the upper frame in the left-right direction, and the suspension roller is guided by the guide rail to open and close. In disposing a self-closing device for self-closing the sliding door, the self-closing device includes a drum part on which a long transmission body connected to the sliding door is suspended and a drum part associated with the opening operation of the sliding door. A bullet that stores energy by rotation, a door closing speed control unit that controls the rotation speed of the drum unit that operates in reverse by the energy storing force, and a speed for adjusting the set speed of the door closing speed control unit. The self-closing device is arranged in the upper frame so that the speed adjusting unit is directly visible from below the upper frame through the opening. Arrangement structure of the self-closing device in the characteristic self-closing sliding door.