JP3527479B2 - Sliding door free stop device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door free stop device capable of stopping the sliding door at an arbitrary position in a sliding door having means for automatically moving the sliding door in the closing direction at all times.

[0002]

2. Description of the Related Art Conventionally, a sliding door closer has been known which automatically closes a sliding door provided in a building. When the sliding door is biased in the closing direction by the sliding door closer, the sliding door is automatically closed by the biasing force of the sliding door closer when the hand is released from the opened sliding door. For this reason, in a sliding door provided with sliding door closer means, various sliding door free stop devices have been proposed for holding the sliding door in an open state (for example, Japanese Utility Model Laid-Open No. 4-4171, Patent No. 268).
3321).

The structure of the sliding door free stop device described in Japanese Utility Model Laid-Open No. 4-4171 will be briefly described with reference to FIG.
~ Fig. 11 is a diagram for explaining the operation of the device. In FIGS. 8 to 11, 101 is a sliding door that is provided so as to be slidable in the lateral direction. A roller 104 provided on a bracket 103 is provided on an upper end of the sliding door 101, and the roller is mounted on a rail 102 provided on the building side. It is placed and the sliding door is movably suspended. Reference numeral 107 denotes a stop means that constitutes a free stop mechanism provided on the bracket 103. The stop means is provided with an outer cylinder 109 that is rotatably supported only by a shaft 108, and an elongated hole 110 that is fitted into the outer cylinder 109. The inner cylinder 111 fitted to the shaft 108 and slidable in the longitudinal direction of the outer cylinder 109
A spring 112 for urging the inner cylinder 111 in a direction projecting from one end side in the longitudinal direction of the outer cylinder 109, and a shaft 10 attached to the tip of the inner cylinder 111 projecting from one end side in the longitudinal direction of the outer cylinder 109.
The rail 102 is rotatably supported around an axis parallel to the rail 102.
It is composed of a roller 113 having a flat portion 113a placed thereon.

In the above-mentioned sliding door free stop device, when the sliding door is opened from the state shown in FIG. 8, the roller 113 of the stopping means 107 is placed on the rail 102 and is rolling while sliding.
Move with 1. At this time, the outer cylinder 10 of the stopping means 107
As shown in FIG. 9, the inner cylinder 9 and the inner cylinder 111 are tilted on the opposite side with respect to the moving direction so that the braking force of the stopping means 107 does not work in the opening direction. And if you want to open the sliding door to a certain required position and hold it,
When the hand is released from 1, a force is applied to the sliding door 101 in the closing direction by the sliding door closer, but a braking force is exerted by the stopping means 107 in the state shown in FIG. 10, the closing movement of the sliding door 101 is stopped, and the sliding door 101 is closed. Even if a force is applied in the closing direction by the action of the roller 112, the action of the force is applied to the rail 102 side by the spring 112, and the flat surface 11 of the roller 113 is urged.
The sliding door can be stopped by being stopped by the frictional force between 3a and the rail 102.

When the sliding door 101 is closed from the open state shown in FIG. 9, when the sliding door 101 is pushed in the closing direction by hand against the frictional force between the flat surface 113a of the roller 113 and the rail 102, FIG. As shown, the inner cylinder 111 moves upward against the force of the spring 112 while the roller 113 is in contact with the rail 102 by the force of pushing the sliding door 101 in the closing direction by hand, and as shown in FIG. 107 tilts to the side opposite to the state shown in FIG. 9, releasing the open holding force,
After that, the sliding door 101 is automatically closed by the biasing force of the sliding door closer.

[0006]

However, in the above-mentioned sliding door free stop device, it is necessary to form the flat surface 113a on the roller 113, which is in contact with the rail 102. Therefore, it is troublesome to process the roller 113 and the cost is increased. Is a factor of. Further, in this stopping means, the roller 1
Since the spring 13 is biased by the spring 112, the stopping force (the frictional force between the roller 113 and the rail 102) cannot be adjusted. Therefore, improvement in operability has been desired.

Further, in the sliding door free stop device described in the above-mentioned Japanese Patent No. 2683321, an elastic locking member is used instead of the sliding door free stop as described in Japanese Utility Model Laid-Open No. 4-4171. However, the elastic locking member is not durable and it is difficult to maintain a stable stopping force for a long period of time. Further, even with this device, the stopping force (the frictional force between the elastic locking member and the rail) cannot be adjusted, so that improvement in operability has been desired.

Further, both of them have been devised such as notching the final end of the rail in order to eliminate the resistance force generated when the sliding door is opened from the completely closed state.
Such an effect is effective only when the sliding door is opened from the completely closed state, and when opening or closing the sliding door stopped in the middle of the rail, resistance for switching the inclination direction of the stopping means is provided. Since the working sliding door cannot move smoothly, improvement in operability has been desired.

Therefore, the present invention provides a sliding door free stop device which employs a mechanism for sandwiching an elastic roller between a braking portion and a rail and which can adjust the sandwiching force of the elastic roller by the braking portion and the rail. Is characterized by solving the above problems. Further, the elastic roller of the present invention,
It is not necessary to have a flat surface as described in Japanese Utility Model Laid-Open No. 4-4171, processing is easy, and there is no sliding surface with the rail, so there is almost no wear and durability is dramatically increased. Can be improved. In addition, the brake can be reliably released with a small operating force even when stopped at any position on the rail, and the operation feeling is excellent, and the sliding door urges in the opening direction at any position on the rail. However, it is possible to obtain the effect that the load is not applied by the stopping means itself.

[0010]

Therefore, the sliding door free stop device, which is a feature of the present invention, is a sliding door free stop device for a sliding door that automatically moves on the rail in a closing direction when a hand is released from the sliding door. , The free stop device
The sliding door is stopped by being pressed by the rail
Provided with a stopping means for maintaining and a supporting member for supporting the stopping means.
The stop means includes a support member that axially supports the elastic roller.
The support member has a relative position with respect to the support member.
Equipped with a braking unit that is movable to the
The braking member is provided, and the support member and the braking member are
A support part having an opening formed therein and supporting the stop means in the opening part
The shaft attached to the material is provided through the
Is disposed in the braking member and protrudes into the opening.
By the action of the elastic roller,
Note that the braking member is prohibited from moving upward and braking is performed with the elastic roller.
The movement of the sliding door is stopped by the action with the member, and
When the engagement is released, the elastic roller and the control
The moving member is allowed to move upward and the sliding door is allowed to move.
Sliding door having a locking member capable of
It is a free stop device . Further, the locking member is in thus braking member to adjusting means for adjusting the position of engagement with said shaft
It has supported a sliding free stop device according to claim Rukoto. Further, the sliding door free stop device is characterized in that the adjusting means is a screw and the locking member is screwed into the screw. Further, the elastic roller is a sliding door free stop device characterized in that the elastic roller is pivotally supported by a roller support shaft that forms a gap between the elastic roller and the inner diameter of the central portion of the elastic roller.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an upper part of a sliding door provided with a sliding door free stop device according to this embodiment, and FIG. Fig. 3 is a perspective view of the stopping means in an assembled state, Fig. 4 is a front view and a side sectional view of the sliding door free stop device, Fig. 5 is an enlarged side sectional view of the sliding door free stop device, and Fig. 6 is the sliding door. FIG. 7 is an explanatory diagram of an opening operation of the free stop device, and FIG. 7 is an explanatory diagram of a closing operation of the sliding door free stop device.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a sliding door 1 is supported on a rail 3 inclined so that the sliding door closing direction is slightly lowered so that the sliding door can be moved by its own weight in the closing direction. A sliding door free stop device 100 for stopping the sliding door 1 in an open state is provided at any position above, and the sliding door 1 is configured to be movable by a door roller 2 on the rail 3 attached to the building side. . In addition,
Reference numeral 200 in the figure is a damper device for preventing the sliding door from strongly hitting the door frame when the sliding door is closed. As shown in FIG. 4, a bracket 4 is fixed to the upper part of the sliding door 1 by bolts 5, 5, etc., and a door roller 2 is rotatably supported by the bracket 4 so that the door roller 2 is mounted on a rail 3 on the building side. The sliding door 1 can be opened and closed by being placed and suspended. The configurations of the damper device 200 and the door roller 2 are the same as those of the conventional sliding door,
Since it is not the main part of the present invention, its detailed description is omitted.

A supporting member 6 having a substantially U-shape in plan view as shown in FIG. 2 is fixed to the bracket 4 by appropriate means (in this example, it is fixed to the bracket 4 via a metal fitting 7). The stop means 10, which is a feature of the present invention, is attached to this U-shaped opening side as shown in FIG.
4 and 5, the stopping means 10 includes a support member 11 for the elastic roller 13, a braking member 12 that vertically moves relative to the support member 11 for the elastic roller, and an upper portion of the support member 11 and the braking member 12. The substantially rectangular openings 11a and 12a formed in communication with each other, an elastic roller 13 rotatably attached to the lower portion of the support member 11 by a roller support shaft 20, and the braking member 1 contacting the elastic roller 13.
The braking member 14 formed at the lower end of the locking member 2 and the locking member 1 disposed in the braking member 12 and protruding into the opening 12a.
5 and a screw 16 as an adjusting means that is screwed into the locking member 15 and moves the locking member 15. The screw 16 is rotatably fixed to the upper portion of the braking member 12. Then, the shaft 17 attached to the U-shaped support member 6 is penetrated through the openings 11a and 12a formed in the support member 11 and the braking member 12 (see FIG. 5), and each member 1
1 and 12 are supported so as to be swingable around the shaft 17 and movable in the vertical and horizontal directions within the range of the openings 11a and 12a.

Specifically, in FIG. 5, the opening 11a,
In 12a, the axis 17 is the side B of the sliding door 1 in the closing direction in the figure.
When it is on the surface, the braking member 12 is engaged with the locking member 15 and the shaft 17.
It is possible to move upward by the amount of the gap between
Further, when the shaft 17 is on the side A surface in the opening direction of the sliding door 1, the support member 11 and the braking member 12 can be moved upward by the vertical distance of the openings 11a, 12a. The distance that the braking member 12 can move when it is on the side B surface in the closing direction is the distance between the locking member 15 and the shaft 17, and the distance is the adjusting means for supporting the locking member 15, that is, the distance. , The locking member 15 by rotating the screw 16
Is adjustable on the screw 16.
At this time, the support member 11 is connected to the shaft 17 and the opening 11a.
Since a gap is still formed between the lower part and the lower part, it is in a movable state.

An elastic roller 1 is rotatably supported by a roller support shaft 20 below the support member 11.
3, a braking portion 14 for exerting a braking force on the elastic roller 13 is formed at the lower end of the braking member 12, and the braking portion 14 is pressed and abutted against the elastic roller 13 at the time of stop to brake the elastic roller 13. The brake can be applied by being sandwiched between the portion 14 and the rail 3. The elastic roller 13 has a collar 1
9, the inner diameter of the collar 19 is larger than the diameter of the roller support shaft 20 fixed to the support member 11, and the gap 18 is formed. Due to the action of the gap 18, the elastic roller 13 does not come into contact with the braking member 14 and freely rotates during the movement, thereby improving the durability. In this example, the locking member 15 is movably provided so as to project into the opening 12a formed in the braking member 12. However, if the sliding door can be braked on the way, the locking member 15 will be attached to the braking member 12. It may be fixed.

The operation of the sliding door free stop device 100 having the above structure will be described. Description of Opening Operation of FIG. 6 Stopping means 1 at the initial operation of performing the opening operation of the sliding door 1.
0 is supported by the shaft 17 penetrating through the openings 11a and 12a at the corners of the A surfaces in the drawings of the openings 11a and 12a. In this state, the stopping means 10 is centered on the elastic roller 13 by its own weight. It is tilted to the left (a). At this time, a gap 18 is formed between the collar 19 fitted inside the elastic roller 13 and the roller support shaft 20. When the sliding door 1 is opened in this state in the direction of the arrow, the elastic roller 13 first moves by the gap 18 due to the frictional force between the elastic roller 13 and the rail 3, and the braking portion 14 formed at the lower end of the braking member 12 is moved. , The rotation is stopped by friction, and the support member 11 is pushed upward (b). At this time, the elastic roller 13 causes the braking member 12 to move.
Is also pushed up. During this movement, the shaft 17 is located above the A surface of the openings 11a and 12a by the weight of the stopping means 10, so that the shaft 17 does not engage with the locking member 15 (without deforming the elastic roller 13). Member 1
Nos. 1 and 12 move upward as they are, and no braking force acts between the elastic roller 13 and the rail 3 (stopping means 10).
Is not overloaded). When the sliding door 1 is further moved, the braking portion 14 gets over the elastic roller 13 (c). In this state, the shaft 17 is positioned on the upper side of the B surface where the locking member 15 is located, and is in the stop preparation state.

Description of Closing Operation and Opening State of FIG. 7 When the opening operation is stopped, the sliding door 1 is attached due to its own weight because the rail 3 fixed to the door frame side is attached so as to be inclined in the closing direction of the sliding door. As shown in the middle (a), it tries to move to the left, but at this time, the elastic roller 13 tries to hold its position by the frictional force with the rail 3 and the braking portion 14, and the elastic roller 13 is first moved by the gap 18. Move (b). Next, the elastic roller 13 pushes up the braking member 12 via the braking portion 14, but at this time, the shaft 17
The locking member 15 comes into contact with the locking member 15 and restricts the upward movement of the braking member 12. Due to this regulation, the elastic roller 13 causes the braking portion 14 to
The brake force is exerted by being sandwiched between the rail 3 and the rail 3, and stops the sliding door 1 in the open state at that position. When the operation of closing the sliding door 1 is performed from this state, the elastic roller 13 is pressed against the braking portion 14, and when the elastic roller 13 is deformed, the support member 11 is pushed upward through the roller support shaft 20. When the stopping means 10 gets over the vehicle and tilts to the left (C), and further moves, the engagement between the shaft 17 and the locking member 15 is released by the own weight of the stopping means 10, and the shaft 17 is placed on the A surface of the openings 11a and 12a. Since it is located, it is tilted to the left (d), and no resistance is generated even if the sliding door 1 is operated in the closing direction. Further, this state has returned to the initial state of the open state described above.

Although the embodiment according to the present invention has been described above, the braking portion is formed in a semicircular cross-section and is formed integrally with the main body, but the braking portion may have another cross-sectional shape. Furthermore, the present invention can be embodied in various other forms without departing from the spirit or main characteristics of the present invention, and therefore, the above-mentioned embodiments are merely exemplifications in every respect, and are not construed as limiting. should not be done.

[0019]

As described in detail above, according to the present invention,
By adopting a mechanism that clamps the elastic roller between the braking part and the rail and adjusting the clamping force of the elastic roller by the braking part and the rail, it is a sliding door free stop device, which makes the durability of the elastic roller jump. Can be extended. The elastic roller does not need to process a flat surface and is inexpensive. In addition, the braking force can be reliably obtained at any position on the rail, the brake can be reliably released with a smaller operating force, and the operation feeling is also outstanding. By forming the gap in the stop means, the initial movement of the stopping means becomes smooth, and even if the sliding door is biased in the opening direction at any position on the rail, the load by the stopping means itself is not applied.
It is possible to obtain unique effects such as that

[Brief description of drawings]

FIG. 1 is a perspective view of an upper part of a sliding door provided with a sliding door free stop device according to the present embodiment.

FIG. 2 is an assembled perspective view of the sliding door free stop device.

FIG. 3 is a perspective view of the sliding door free stop device in an assembled state.

FIG. 4 is a front view and a side sectional view of the sliding door free stop device.

FIG. 5 is an enlarged side sectional view of the sliding door free stop device.

FIG. 6 is an explanatory diagram of an opening operation of the sliding door free stop device.

FIG. 7 is an explanatory diagram of a closing operation of the sliding door free stop device.

FIG. 8 is an operation explanatory view of a conventional sliding door free stop device.

FIG. 9 is an operation explanatory view of a conventional sliding door free stop device.

FIG. 10 is an operation explanatory view of a conventional sliding door free stop device.

FIG. 11 is an operation explanatory view of a conventional sliding door free stop device.

[Explanation of symbols]

1 sliding door 2 door car 3 rails 4 bracket 5 Volts 6 Support members 7 members 10 Stopping means 11 Support member 11a opening 12 Braking member 12a opening 13 Elastic roller 14 Braking part 15 Locking member 16 Adjustment means (screw) 17 axes 18 Gap 19 colors 20 Roller support shaft 100 sliding door free stop device 200 sliding door closer

Claims (4)

(57) [Claims] 1. A sliding door free stop device for a sliding door that automatically moves on a rail in a closing direction when a hand is released from the sliding door, wherein the free stop device is pressed by the rail.
Stop means to keep the sliding door in a stopped state by
And a support member for supporting the stopping means, wherein the stopping means is
Having a supporting member for axially supporting the elastic roller,
The material is movable relative to the support member and
A braking member having a braking portion that comes into contact with the elastic roller is provided.
An opening is formed in the support member and the braking member,
The shaft attached to the support member supporting the stop means penetrates through the opening.
Through the opening, and in the opening, in the braking member
Of the elastic roller that is arranged and projects into the opening.
Is engaged with the shaft by the action to move the braking member upward.
The movement is prohibited and the action of the elastic roller and the braking member
The state where the movement of the sliding door is stopped and the engagement with the shaft is released
When, the elastic roller and the braking member move upward.
And a locking member that allows the sliding door to move.
A sliding door free stop device characterized by being provided. Wherein said locking member is sliding free stop device according to claim 1, characterized that you have been supported by the thus braking member to adjusting means for adjusting the position of engagement with said shaft. 3. The sliding door free stop device according to claim 2, wherein the adjusting means is a screw, and the locking member is screwed to the screw. 4. The elastic roller is rotatably supported by a roller support shaft that forms a gap between the elastic roller and the inner diameter of the center of the elastic roller. Sliding door free stop device.