JP2000240350A - Sliding door closer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease time and labor required for assembling a closing motion buffering stopper and an intermediate stopping device as well as control and storage of these members in a self-closing type sliding door equipment. SOLUTION: A main bracket 39 is fastened to a hanger 29 to which a door is attached with a screw 40, and a buffering stopper 41 bumping on a piston rod of a buffering air cylinder during door closing operation and an intermediate stop device 42 for stopping the door at an arbitrary open position are provided for side plates 39c, 39d of this main bracket 39. The intermediate stopping device 42 comprises a sub-bracket 55 fixed to the main bracket 39 with a screw 54 and an intermediate stopping stopper 56 made of an elastic body installed in a freely rotatable manner to the sub-bracket with a pin 56, and the door can be stopped at an arbitrary position by stretching the intermediate stopping stopper 56 to the fixed rail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for buffering a closing motion of a door and an intermediate stopping device for stopping the door at an arbitrary open position in a sliding door device such as a self-closing type.

[0002]

2. Description of the Related Art Generally, a self-closing type sliding door device is provided with a shock absorbing device for absorbing an impact when the door is closed and moved. An air cylinder is generally used as the shock absorber. For example, Japanese Patent Application Laid-Open No. 9-235938 (particularly FIG.
As described in (2, 16), while the air cylinder is fixed to a member arranged above the entrance, a hanger fixed to the upper end of the door is provided with a buffering stopper that hits the piston rod of the air cylinder. (For example, as described in Japanese Utility Model Publication No. 4-11113, an air cylinder is attached to a hanger to fix the shock absorber stopper.)

[0003] An intermediate stop device for stopping a door at an arbitrary open position is also used.
No. 3321 discloses that a bracket is fixed to a hanger fixed to the upper end of a door, and an intermediate stop stopper made of an elastic material that frictionally hits an upper surface of a fixed rail or the like is rotatably attached to the bracket. I have. According to this configuration, when the direction of movement of the door is switched, the intermediate stop stopper changes its posture due to deformation against its elasticity, so that the door is stopped at any open position without obstructing the self-closing operation of the door. be able to.

[0004]

Heretofore, a member for damping the closing motion and a member for the intermediate stop device have been manufactured without any mutual movement, and are mounted at separate parts independently of each other. There has been a problem that the assembling work of those members is troublesome, and the storage and management of the members are troublesome (it is easy to lose the members because the members must be managed separately).

On the other hand, there are a sliding door device of a right-pull type (right-opening type) and a left-pulling type (left-opening type). Since two types are manufactured for each type of use, there is a problem that not only the manufacturing cost of the member is increased but also the management of the member requires more trouble.

An object of the present invention is to solve these problems.

[0007]

The sliding door device of the present invention comprises:
Attach one bracket, directly or via another member, to the top of a sliding door that closes the entrance provided on the wall,
The bracket is provided with a member for buffering the closing movement of the door and a member of an intermediate stop device for stopping the door at an arbitrary open position.

Further, the present invention provides
As described in claim 2, "while the door is suspended by a suspension rail arranged obliquely in front view so as to close and move by its own weight, the bracket has a pair of right and left mounting portions. And a member for buffering the closing movement of the door and a member of the intermediate stopping device are interchangeably mounted on the left and right mounting portions of the bracket. " .

[0009]

According to the present invention, since the member for closing movement and the member for the intermediate stopping device are mounted on one bracket, in other words, the member for closing movement and the member for the intermediate stopping device are connected to each other. Are integrated into a single unit, so that the efficiency of the assembling work and the disassembling work can be improved, and the labor required for managing and storing those members can be reduced. In addition, since the member for closing movement buffering and the intermediate stopping device are attached to one place, the structure becomes simple as a whole,
Easy maintenance.

Further, according to the present invention, it is possible to cope with the right-pull type and the left-pull type simply by replacing the closing motion buffering member and the intermediate stopping device on the left and right sides of the bracket. Since it is not necessary to prepare separate members in advance for the right-handed type and the left-handed type, it is possible to reduce the manufacturing cost and to further reduce the trouble of managing and storing the members.

[0011]

Next, embodiments of the present invention will be described with reference to the drawings.

In the embodiment shown in the drawings, the present invention is applied to a suspension type self-closing sliding door device. First, an outline of the sliding door device will be described with reference to FIGS. 1 is a front view of the sliding door device, FIG. 2 is a partially cutaway front view showing an outline of the frame, FIG. 3 is a plan sectional view taken along the line III-III of FIG. 1, and FIG. 4 (A) is a view taken along the line IVA-IVA of FIG. FIG. 4B is a side sectional view, and FIG.
5 is a sectional view taken along the line VV in FIG. 1 and FIG. 6 is a sectional view in FIG.
FIG. 7A is a partially enlarged view, and FIG. 7 is a partial front view of an upper part of the sliding door device in a state where some members are omitted.

As shown in FIG. 1, the sliding door device includes a right-pull type door 3 for closing an entrance 2 provided on a wall 1 such as a built-in type or a partition type, and an inspection panel (column space) disposed above the entrance 2. Panel) 4 and a door pocket 5 in which the opened door 3 is stored.
And A first vertical frame 6 is provided upright at a portion opposite to the door pocket 5 with respect to the entrance 2. As shown in FIG. 3, the door pocket 5 includes a second vertical frame 7 erected at the entrance 2.
And a third vertical frame 8 erected at the back, a door pocket board 10 such as a gypsum board forming the surface of the door pocket 4, and a ground rail (lower fixed frame) 11 fixed to the floor with anchor screws or the like. Have. A nonflammable core material 12 such as a honeycomb material is provided on the inner surface of the door pocket board 10.

As shown in FIG. 2, a left and right longitudinal suspension member 13 is attached between the upper part of the first vertical frame 6 and the upper part of the third vertical frame 8, and is attached to the suspension member 13 in the frontage direction. The door 3 is slidably suspended via a suspension rail 14 extending. In order to close the door 3 by itself, the suspension rails 14 are gently inclined 0 so as to increase in height as approaching the third vertical frame 8.

As shown in FIG. 3, a cushion 15 made of rubber or the like, which is applied when the door 3 is fully opened, is attached to the inner surface of the third vertical frame 8 with a double-sided adhesive tape or the like. As shown in FIG. 4, the sliding door device includes a gutter-shaped top rail (top frame) 16 that opens downward. In the present embodiment, the inspection panel 4 is mounted only on the front side (the left side in FIG. 4) of the suspension support member 13, and a space board 17 such as a gypsum board is disposed on the back side of the suspension support member 13. The transom board 17
It is fixed to the top rail 16 and the like with screws.

As shown in FIG. 4, the suspension support member 13 is made of a metal plate, and has an upper portion formed in a hollow rectangular shape. And
As shown in FIGS. 5 and 7, a bolt 20 and a nut 21 are fixed to a support bracket 19 protruding from the first vertical frame 6 and the third vertical frame 8. In this case, the support bracket 2
0 is provided so as to extend along the center line 22 of the moving passage of the door 3 in plan view, so that the suspension support member 13 can be mounted in a state where the left and right directions are reversed. Accordingly, one type of suspension support member 13 can cope with the right pull type and the left pull type.

The inspection panel 4 is made of a metal plate. As shown in FIG. 4, the upper part is suspended by a ceiling rail 16 via a suspending member 23, and the lower part is a first vertical frame 6 and a second vertical frame. It is detachably fixed by screws 26 to brackets 24 and 25 fixed to the frame 7.

FIG. 6 shows a structure in which the door 3 is suspended by the suspension rail 14. That is, the suspension member 1
A fixed rail 28 having a U-shaped cross section is fixed to the upper and lower middle portions of the door 3, and a movable rail 30 having a U-shaped cross section that fits inside the fixed rail 28 is mounted on a hanger 29 attached to the upper end of the door 3. The guide rails 32 and 33 are fixed to the fixed rail 28 and the movable rail 30 by screws 31,
Between the upper and lower inner surfaces of the outer guide rail 32 and the upper and lower outer surfaces of the inner guide rail 33, a large number of balls 35 held by a retainer 34 are rollably disposed.

At the top and bottom of the hanger 29, horizontal pieces 29a, 2
9b is formed by bending, and heads of a plurality of bolts 36 fixed to the upper surface of the door 3 are hooked on the lower horizontal piece 29b. A cover 37 for retaining the bolt 36 is fastened to the hanger 29 with screws.

As shown in FIG. 2 and FIG.
An air cylinder (absorber) 38 for buffering the closing motion is fixed to a portion above the entrance 2 with screws, while the right end of the hanger 29 is a main bracket as one bracket described in claims. Bracket 39 is screw 40
It is fixed at. The main bracket 39 is provided with a buffering stopper 41 that forms a part of the buffering device, and an intermediate stopping device 42 that stops the door 3 at an arbitrary open position in cooperation with the fixed rail 28. The details are shown in FIGS.
This will be described with reference to FIG.

8 is an exploded perspective view of a main part, FIG. 9 is a front view of the main part, FIG. 10 is a sectional view taken along the line XX of FIG. 9, and FIG. The main bracket 39 has a form in which a lower portion 39a overlapping the front surface of the hanger 29 and a front-opening box-shaped upper portion 39b that enters above the fixed rail 28 are integrally connected to each other. Is a pair of left and right screw insertion holes 43
Is open. Screw insertion holes 44 and 45 are also provided on the hanger 29.
Are empty, and screw insertion holes 43 and 4 of both 39 and 29 are provided.
The main bracket 39 is fastened to the hanger 29 by the screws 40 and nuts 47 (see FIG. 10) inserted into the holes 4 and 45.

Although the two screw insertion holes 43 of the main bracket 39 are round holes,
One of the screw insertion holes 44 and 45 has a round hole 44 on one side and 4 on the other side.
Numeral 5 is a vertically long slot. This is to enable the posture of the main bracket 39 to be adjusted.

On the upper portion 39b of the main bracket 39,
A pair of left and right side plates 39c and 39d are provided as an example of the mounting portion described in claim 2.
a, 39d, a long hole 49 is formed in the upper and lower portions.
A through hole 50 is formed in the left and right middle part of 9b, which is opened in the depth direction and downward.

The buffering stopper 41 has a screw shaft 51. The screw shaft 51 is inserted into the left plate 39c of the main bracket 39, and a nut 52 is screwed into the screw shaft 51, thereby fixing the screw shaft 51 to the left plate 39c of the main bracket 39. Have been. The large diameter portion of the buffer stopper 41 is made of a magnet, and as shown by a dashed line in FIG.
Is magnetically attached to a receiving plate 53 made of a magnetic material provided at the tip of the piston rod 38a.

The intermediate stopping device 42 is provided for the main bracket 3
9 includes a sub-bracket 55 fixed to the inner surface of the right side plate 39d with screws 54, and an intermediate stopper 56 made of an elastic material such as rubber. The lower end of the intermediate stop stopper 56 is formed in a downwardly projecting mountain shape when viewed from the front, but may have another shape. Further, the intermediate stop stopper 56 may have another structure.

The sub-bracket 55 is formed by bending a single metal plate.
A folded portion 55a having a U-shape in a plan view is formed to protrude from the rear, and an upper portion of an intermediate stop stopper 56 is rotatably attached to the folded portion 55a by a pin 57. Therefore, the intermediate stop stopper 56 is in contact with the upper surface of the fixed rail 28 as shown in FIG. The screw hole 58 and the pin insertion hole 59 of the sub-bracket 55 are formed in the middle part of the upper and lower parts. It can be brought into contact with the upper surface of the rail 28.

It is to be noted that the stopper 56 for the intermediate stop is provided with the through hole 5.
0, the end of the upper horizontal piece 29a of the hanger 29 is cut out (notch 6
0).

In the above configuration, when the door 3 is opened, the intermediate stop stopper 56 is inclined forward in the traveling direction as shown in FIG. 11, so that pulling is stopped during opening. As the door 3 tries to return to the closing direction by its own weight,
6 strikes against the upper surface of the fixed rail 28, whereby the door 3 stops at any open position. If the door 3 in the open state is pulled in the closing direction with a certain force or more, the stopper 56 for intermediate stop is elastically deformed and the posture is reversed.
Is closed by its own weight. Since the piston rod 38 a of the air cylinder 38 is pulled out by the opening movement of the door 3, the buffer stopper 4 is closed during the closing movement of the door 3.
1 hits the piston rod 38a of the air cylinder 38, thereby damping the closing movement.

According to the present invention, since the buffering stopper 41 and the intermediate stopping device 42 are provided on one main bracket 39, the assembling work on the site is easy, and the storage and management of those members are facilitated. The labor can be reduced. Further, since the buffering stopper 41 and the intermediate stopping device 42 can be replaced with the left and right side plates 39a and 39b in a state where the posture is reversed left and right, both the sliding door device for rightward sliding and the sliding door device for leftward sliding can be used. Different types of components can be used.

The intermediate stop stopper 56 may be directly attached to the main bracket 39, but the intermediate stop stopper 56 is attached to the sub bracket 55 as in the embodiment, and the side plates 39a,
When the long hole 49 is provided in 39b, the stopper 5 for the intermediate stop is provided.
There is an advantage that the adjustment can easily be performed when the 6 is worn (there is also an advantage that the heights of the buffer stopper 41 and the intermediate stopper 56 can be accurately adjusted at the time of assembly).

When the intermediate stop stopper 56 is exposed downward from the through hole 50 of the main bracket 39 as in the embodiment, the intermediate stop stopper 56 is formed by the through hole 50.
Since the rotation range can be restricted, there is also an advantage that the intermediate stop stopper 56 can be prevented from being separated from the fixed rail 28 for some reason.

{Other} The present invention can be embodied in various forms other than the above embodiment. For example, the shock absorber is not limited to the one using the air cylinder as in the embodiment, but may be a hydraulic cylinder or simple rubber. Also, an absorber such as an air cylinder and a damper may be attached to the door.
Further, the mounting position and form of the bracket may be appropriately changed according to the support structure of the door, such as by directly mounting the bracket to the door.

Further, the stopper for the intermediate stop is not limited to abutting on the fixed rail, but may be abutted on another fixed member such as a suspension member. Further, the structure of the intermediate stopping device can be variously embodied. Further, the door is not necessarily limited to a hanging type or a self-closing type. In the case of a hanging type, a door using a roller as disclosed in the above-mentioned Japanese Patent No. 2683321 may be used.

[Brief description of the drawings]

FIG. 1 is a front view of a sliding door device with a door closed.

FIG. 2 is a partial front view in a state where an inspection panel is omitted.

FIG. 3 is a plan sectional view taken along the line III-III of FIG. 1;

4A is a side sectional view taken along the line IVA-IVA in FIG. 1, and FIG.
FIG. 4 is a side sectional view taken along line IVB-IVB of FIG.

FIG. 5 is a sectional view taken along line VV of FIG. 1;

FIG. 6 is a partially enlarged view of FIG. 4;

FIG. 7 is a front view of a main part.

FIG. 8 is an exploded perspective view of a main part.

FIG. 9 is a front view of a main part.

10 is a sectional view taken along line XX of FIG. 9;

FIG. 11 is a partially cutaway front view of a main part.

[Explanation of symbols]

 2 Doorway 3 Door 4 Inspection panel (Rammer panel) 5 Door pocket 13 Suspension member 14 Suspension rel 28 Fixed rail 29 Hanger 30 Movable rail 38 Air cylinder 38a Piston rod 39 Main bracket (one bracket) 41 Buffer stopper 42 Intermediate stopper 50 Through-hole 55 Sub-bracket 56 Intermediate stop stopper

Claims (2)

[Claims] 1. A bracket is mounted on an upper part of a sliding door for closing an entrance provided on a wall or the like, directly or via another member, and the bracket is used to buffer closing movement of the door. A sliding door device comprising a member and a member of an intermediate stop device for stopping a door at an arbitrary open position. 2. The door is suspended on a suspension rail arranged obliquely in a front view so as to close and move by its own weight, while the bracket is symmetrical with a pair of right and left mounting portions. 2. The sliding door according to claim 1, wherein a member for buffering the closing movement of the door and a member of the intermediate stopping device are interchangeably attached to the left and right attachment portions of the bracket. apparatus.