JPH083302B2 - Non-rotating device for sliding door closer in self-closing sliding door - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detent device for a sliding door closer in a self-closing sliding door that automatically closes a manually opened sliding door.

[Problems to be Solved by Prior Art and Invention] In general, a self-closing sliding door of this type is connected to a sliding door via a long transmission member suspended on the drum portion, and a drum portion accompanying opening operation of the sliding door. There is a so-called sliding door closer, in which the closing force is stored in the ammunition by the rotation of the drum, and the sliding door is closed by rotating the drum portion in the reverse direction by the closing force. By the way, in such a self-closing sliding door, in order to ensure airtightness, the biasing force of the sliding door closer is set so that the sliding door is pressed against the vertical frame on the door end side even in the closed state. In order to perform this setting during construction, it is necessary to suspend the transmission body with a predetermined closing force stored in the ammunition, but in this case, try to rotate by the stored force. Since the work is done while stopping the rotation of the drum part, the work is difficult to perform, which is a problem. Therefore, it is proposed to make the transmission body suspended by locking the drum part in advance by the rotation stop member to facilitate the work, but in this case, the rotation stop is attached to the mounting bracket or the like. Since it is necessary to further provide a mounting portion for mounting the member, there is a problem of cost increase due to the complicated shape of the member.

[Means for Solving the Problems] The present invention has been conceived with the object of providing a detent device for a sliding door closer in a self-closing sliding door that can eliminate these drawbacks in view of the above circumstances. At the same time, it is connected to a sliding door through a long transmission body suspended on the drum part, and stores energy by the rotation of the drum part accompanying the opening operation of the sliding door, while rotating the drum part in reverse by the accumulating force. In a self-closing sliding door using a sliding door closer that causes a sliding door to be closed by moving the sliding door closer, a mounting member for holding a lifting member from a drum portion of a transmission member is attached to a mounting bracket of the sliding door closer. The mounting bracket is constructed so that it can be used for both left and right mounting by being installed symmetrically about the center of motion as a symmetry point, while a detent member for restricting the rotation of the drum part is attached to the mounting part of the pressing member. It is characterized in that it is attachable.

Further, according to the present invention, the detent member can be attached by also using the attaching portion of the pressing member without providing any additional attaching portion.

[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
The upper end portion is loosely fitted into the opening 5b formed in the bottom surface portion 5a of the case 5 above the sliding door 1, and the both hanging rollers 2 are supported by the rail body 6 installed in the case 5. It is suspended so that it can be opened and closed, but all of these configurations are the same as conventional ones. 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 17,
Although 18 and 19 are screwed in, these speed adjusting screws 17, 18,
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 19.

Reference numeral 20 denotes a mounting bracket for fixing the sliding door closer 9 to the rail body 6. The mounting bracket 20 is formed in a substantially U shape in a side view as shown in FIG. Screw hole 2 for fixing sliding door closer 9
0b, and the back piece 20c is formed with a screw hole 20d for fixing itself to the rail body 6, which further includes attachment pieces 20e, 20f of a belt pressing member 21 described later.
Are symmetrically arranged with respect to the upper left corner and the lower right corner, that is, the rotation center of the drum 15 as a symmetry point.

On the other hand, the belt pressing member 21 is composed of a mounting plate 21a and a pressing roller 21c rotatably supported by a roller shaft 21b projecting from the mounting plate 21a. Depending on the left / right mounting of the sliding door closer 9, either one of the mounting pieces 20e, 20f of the mounting bracket 20 may be mounted to press the lift of the toothed belt 11 that is meshed with the drum 15 in a suspended manner. There is. That is, the sliding door closer 9
As shown in FIG. 9, the left and right attachment positions of the sliding door 1 are different depending on the left and right pulling hand, and the holding position of the belt pressing member 21 is also different accordingly. In this case, the belt pressing member 21 is attached to the mounting piece 20e. , 20f is selectively attached to either the left or right side so that it is possible to accommodate both sides.

Further, 22 is a detent member,
The locking piece 22a bent at the front end engages with a plurality of engaging groove parts 15a formed at a predetermined interval on the peripheral edge of the drum 15 to prevent the drum 15 from rotating. There is this, but this one is the mounting piece 20 of the mounting bracket 20
It can be attached to either one of e and 20f, that is, the attachment piece on the side where the belt pressing member 21 is not attached.
Reference numerals 23 and 24 are connecting fittings for connecting the toothed belt 11 to the roller brackets 3 and 4, respectively, and 25 is a toothed belt.
It is an ammunition to maintain the tension of 11.

In the embodiment of the present invention configured as described above, when the sliding door is installed, the swirl ammunition machine 16 of the sliding door closer 9 is pre-stored so that the sliding door 1 in the closed state abuts against the vertical frame on the front side of the door. In this state, the toothed belt 11 is suspended, but at this time, the rotation stop of the drum 15 which is about to be rotated by the stored force of the spiral machine 16 prevents the belt pressing member 21 from being attached to both the left and right sides. Correspondingly, the detent member 22 that engages with the drum 15 and restricts its rotation is attached to one of the attachment pieces 20e and 20f oppositely attached to the attachment bracket 20. After suspending the toothed belt 11 with the
11 suspended works will be completed.

As described above, according to the present invention, the sliding door 1 is elastically pressed against the vertical frame on the front side of the door in the closed state to ensure the airtightness of the self-closing sliding door. 11 When suspending work, attach the anti-rotation member 21 to one of the mounting pieces 20e and 20f of the mounting bracket 20 and
By restricting the rotation of the toothed portion 15, it is possible to easily suspend the toothed belt 11 without manually pressing the drum portion 15 as in the prior art. Therefore, the detent member
21 is a belt pressing member 21 that does not need to be formed as a dedicated mounting portion, and effectively uses either one of the mounting pieces 20e and 20f that oppose the mounting bracket 20 to accommodate both left and right mounting. As a result, it is possible to avoid the complication of the shape of the member such as the mounting bracket 20 and reduce the cost for manufacturing the member.

In addition, the present invention is not limited to the above-mentioned embodiment, and for example, as the transmission body, in addition to the toothed belt, a belt having no teeth or a wire can be appropriately used. .

[Effects] In summary, since the present invention is configured as described above, the sliding door closer is pre-stored in advance so that the sliding door in the closed state abuts against the vertical frame at the door tip side when the sliding door is installed. It will be in a state, and the transmission body will be suspended in this state,
At this time, the rotation preventing member for rotating the drum portion, which is about to rotate due to the stored force, is formed by attaching the rotation preventing member to one of the attaching portions opposed to the attaching bracket. That is, the anti-rotation member is attached using the attaching portion on the side where the attaching member is not attached, out of the attaching portions opposed to the attaching bracket for attaching the holding member corresponding to the left and right attachment. . Therefore, it is possible to effectively use one of the mounting portions of the mounting bracket that is not used at the same time without forming a dedicated mounting portion for mounting the rotation preventing member. It is possible to reduce the member manufacturing cost by avoiding the complication of the member shape.

[Brief description of drawings]

The drawings show an embodiment of a detent device for a sliding door closer in a self-closing sliding door according to the present invention. Fig. 1 is a front view of the self-closing sliding door, and Fig. 2 is XX of Fig. 1. A sectional view, FIG. 3 is a sectional view taken along line YY, and FIGS. 4A, B, and C are front, side, and bottom views of a sliding door closer, respectively. FIG. B and C are a plan view, a front view and a side view of the mounting bracket, respectively, and FIGS. 7A and 7B are a plan view and a front view of the belt pressing member, and FIGS. 8A, 8B and 8C are plan views of the rotation preventing member, respectively. Drawing, front view, side view, and FIG. 9 are front views of a self-closing sliding door showing another example of different left and right pulling hands,
Fig. 10 is a front view of a self-closing sliding door showing a double-opening embodiment, Fig. 11
A, B and C are respectively a front view, a partially cutaway side view and a plan view of the roller bracket, and FIGS. 12A and 12B are a front view and a partially cutaway side view of the driven pulley, respectively. In the figure, 1 is a sliding door, 5 is a case, 5b is an opening, 9 is a sliding door closer, 11 is a toothed belt, 15 is a drum, 16 is a swirl machine,
Reference numeral 20 is a mounting bracket, 20e and 20f are mounting pieces, 21 is a belt pressing member, and 22 is a rotation stopping member.

Claims (1)

[Claims] 1. A drum is connected to a sliding door through a long transmission body suspended from the drum, and the drum is rotated by the opening operation of the sliding door to store energy. In a self-closing sliding door using a sliding door closer that causes a sliding door to be closed by rotating in a reverse direction, a mounting bracket for the sliding door closer is provided with a mounting portion for a pressing member that presses the lift of the transmission from the drum portion. The mounting bracket is constructed so that it can be used for both left and right mounting, and the rotation stopper member for restricting the rotation of the drum portion is attached to the attaching portion of the pressing member. An anti-rotation device for a sliding door closer in a self-closing sliding door, which is configured to be attachable.