JP2014031620A5 - - Google Patents

Description

Sliding door optional opening position stop device

  The present invention relates to a sliding door arbitrary opening position stop device for holding a sliding door at an arbitrary opening position, and in particular, in response to an alarm signal or the like informing it in the event of a fire, The present invention relates to a sliding door arbitrary opening position stop device which can be automatically closed.

  There is known a sliding door device that automatically closes when the sliding door is opened. Moreover, in such a sliding door device, in order to hold the sliding door at an arbitrary opening position, the sliding door is arbitrarily opened by braking the sliding door to move in the closing direction and holding the sliding door at the arbitrary opening position. A sliding door device provided with a position stopping device is also known (see, for example, Patent Documents 1 and 2).

  On the other hand, there is also known a sliding door device that releases the braking function of the sliding door arbitrary opening position stop device and automatically closes the sliding door when a fire occurs (for example, Patent Document 3 and 4).

Japanese Patent No. 2741670 JP 2010-248830 A Japanese Patent No. 2937828 Patent No. 4800852

  The sliding door arbitrary opening position stopping device for sliding doors disclosed in Patent Documents 1 and 2 stops the sliding door by applying a certain braking force to the sliding door to be automatically closed. It can be closed by applying a closing force that exceeds the power. The sliding door arbitrary opening position stop device disclosed in Patent Document 1 requires a large force for the opening operation because the same braking force is applied to the sliding door when the sliding door is opened and closed. On the other hand, Patent Document 2 is improved to reduce the door opening force required for the opening operation and to apply a large braking force when the opened sliding door moves in the closing direction. It has been broken.

  The sliding door arbitrary opening position stopping device disclosed in Patent Document 3 is a rail in which an elastic stopper piece (72) pivotably attached to a sliding door (8: reference number in Patent Document 3) is horizontally fixed to the door frame. (11) is engaged to give a braking force. When releasing the braking force, the support bracket (71) that supports the elastic stopper piece is rotated to move the elastic stopper piece (72) to the rail. Although it is separated from (11), in the same manner as the sliding door arbitrary opening position stopping device disclosed in Patent Document 1, in the normal opening and closing doors, the same braking force is applied to the sliding door. It has become. In addition, it engages with the support fitting (71) in a normal state, holds the support fitting in a stationary position with respect to the sliding door, and releases the engagement with the support fitting in the event of a fire. The retracting means (78) that allows the pivot to rotate is provided. The retracting means (78) includes a plunger (77) having a stopper (76) that engages with the support fitting at the tip, and the plunger It is composed of a solenoid device (solenoid 75) that retracts the stopper and removes the stopper from the support bracket in the event of a fire. Therefore, the force required to retract the plunger needs to be quite large, and the solenoid device must be quite large.

  The sliding door arbitrary opening position stop device of Patent Document 4 has a braking member (holding member 37) attached to the door frame, and the braking member is engaged with a rail (holding rail 20) fixed to the sliding door in the horizontal direction. However, when the door is opened, no substantial resistance force is applied to the door, and the required braking force is applied when the door is closed. In the event of a fire, the brake member (37) is linked in response to an alarm signal. The latch member (lever member 43) that holds the rotating arm (36) is removed, and the braking member (37) is rotated by the spring force to apply a force in the closing direction to the rail (20). The sliding door is moved in the closing direction. In this sliding door arbitrary opening position stop device, the mechanism for closing the sliding door in the event of a fire is as described above, and the structure becomes complicated.

  In view of the above, an object of the present invention is to provide a sliding door arbitrary opening position stop device with a simple structure that can release a braking force on an opened sliding door and enable automatic opening. Further, in such a sliding door arbitrary opening position stop device, when opening the door, it is possible to open the door with a relatively small force, and when closing the door, the sliding door is reliably braked and held at the opening position. An object of the present invention is to provide a sliding door arbitrary opening position stopping device provided with a braking device having a structure.

That is, the present invention
Sliding door optional opening position for stopping the sliding door that is moved by the hand in the opening direction with respect to the door frame and that is applied with a closing force so that it automatically closes when the hand is released. In the stop device,
When a sliding door is attached to a sliding door and opened to move in the closing direction, it is braked against the sliding door by friction with a rail attached to the door frame so as to extend in the opening / closing direction of the sliding door. A closing brake device for applying an action to stop the movement of the sliding door in the closing direction, wherein the sliding door is stationary with respect to the sliding door and is pivotable about a first axis extending in a transverse direction of the sliding door; A door-closing brake device that is displaceable from an operating position where the braking action is performed around the first pivot axis to an inoperable position where the braking action cannot be performed;
A brake release device, which is attached to a sliding door adjacent to the door closing braking device, holds the door closing braking device in the operating position, and displaces the door closing braking device to the inoperable position to release the braking action;
With
The brake release device is
A brake release member that is parallel to the first pivot and is pivotable about a second pivot that is stationary with respect to the sliding door, the radial release from the second pivot A locking protrusion and a holding protrusion extending, and the locking protrusion engages with the door closing brake device between the first pivot axis and the second axis axis to bring the door closing brake device into the operating position. And holding the brake release member pivots about the second pivot axis to pivot the closed brake device about the first pivot axis toward the inoperative position. And the holding projection includes a brake release member configured to engage with the door closing brake device and hold it in the inoperative position when the door closing braking device is pivoted by the locking projection. An optional opening position stop device is provided.

  The brake release device displaces and holds the door closing brake device at the inoperable position by pivoting the brake release member around the second pivot line. Since the brake release member may be driven around the second pivot axis in order to release the brake, as described below, there are various kinds of technical problems such as the solenoid-operated plunger of Patent Document 3 described above. It is possible to use driving means. The brake release member can be manually pivotable in an emergency.

In particular,
The brake release device engages with the brake release member, and the locking projection engages with the door closing brake device to maintain the door closing brake device in the operating position, and with the brake release member. And a brake release activation device for moving the door closing brake device to the inoperable position.

More specifically,
The brake release activation device is
A locking member that engages with the brake releasing member, and the locking protrusion engages with the door closing braking device to maintain the door closing braking device in the operating position;
A solenoid device that receives the signal from the outside and displaces the locking member to release the engagement with the brake releasing member.

  For example, the solenoid device can be interlocked with a fire alarm, and can displace the locking member in response to an alarm signal issued by the fire alarm.

  More specifically, the brake release device has a spring that pivots the brake release member around the second pivot axis, and the engagement protrusion is disengaged from the brake release member. The brake release member can be pivoted by the spring.

  More specifically, the locking member is a lever that is rotatable around a third axis parallel to the first axis, and one end of the lever is engaged with the brake release member. The other end is connected to the solenoid device, and when the solenoid device receives an external signal, the solenoid device is driven around the third pivot line to disengage the brake release member. You can make it. That is, by using a lever, the brake release member can be moved with a smaller force.

  More specifically, the brake release member has a locking groove extending inward in the radial direction of the second pivot axis from an outer peripheral surface thereof, and the one end of the lever of the brake release activation device is The engaging member is engaged with the engaging groove, and when the engaging member is rotated around the third pivot line by the solenoid device, the engaging member moves outward in the radial direction and can be detached from the engaging groove.

  In this case, in order to release the brake, it is possible to move the brake release member with a smaller force because one end of the insulator is locked in the engagement groove of the brake release member and only this is removed. Become.

The door brake device has a locking recess in the shape of one tooth groove of a first virtual gear centered on the first pivot axis,
The locking protrusion of the brake release member has a tooth shape of a second virtual gear centered on the second pivot axis and meshed with a virtual gear centered on the first pivot axis. The door closing device can be held in the operating position by engaging with the locking recess formed in the shape of the tooth gap.

  In other words, the brake release member is engaged with the brake device and held in the operating position by engaging the locking recesses and the locking protrusions in the shape of the teeth and tooth grooves of the first and second virtual gears. Since it did in this way, it becomes possible to engage and rotate both members in the state without backlash.

More specifically,
The closing brake device is
A support frame that is pivotable about the first pivot line, the support frame being locked by the locking protrusion so that the door brake device is in the operating position;
A rotating shaft rotatable about a fourth axis parallel to the first axis, and a deformable elastic roller fixed concentrically around the rotating shaft, A braking roller supported by a support frame and set to be placed on the rail;
The door is supported by the support frame and is spaced from the rail in a state where the support frame is locked by the locking projection, and the door is opened while rotating on the rail between the rail and the rail. A braking member having a braking surface that defines a roller passage through which a braking roller that is displaced in the closing direction passes, and the braking surface engages with the braking roller that is displaced in the opening / closing direction while rotating on the rail. A narrowed portion that narrows the distance between the rail passage and the rail, and a closed-side inclined portion that gradually increases the distance from the narrowed portion toward the closing direction and the narrowed portion. A braking member having a braking surface having an opening-side inclined portion that gradually increases the interval as it extends toward the opening direction;
Have
The braking member is supported by the support frame so as to be displaceable between the opening side position and the closing side position in the opening / closing direction.
The brake roller engages with the opening-side inclined surface of the braking member at the door-closing position when the sliding door is in the door-closing position, and when the sliding door is opened, on the rail and the door While rolling on the side inclined surface, it moves toward the constricted portion, displaces the braking member in a direction away from the rail, and passes through the enlarged constricted portion, and engages with the door closing side inclined surface of the braking member. Then, the brake member is displaced to the door opening side position, and when the opened sliding door is moved in the door closing direction, it rolls on the rail and the door side inclined surface. It is made to go to the constriction,
The support frame is configured to limit displacement in a direction away from the rail of the brake roller at the door opening side position,
The brake roller and the brake member may cause the friction with the rail.

  By doing so, it can be avoided with a small force when the door is opened, and when the opened sliding door tries to move in the closing direction, it can be braked with a large force.

  Hereinafter, the sliding door arbitrary position stop apparatus concerning this invention is demonstrated based on an accompanying drawing.

It is a front view of the sliding door arbitrary position stop apparatus which concerns on this invention fixed to the door-car attachment member in the upper edge of a sliding door. It is the side view which looked at the sliding door arbitrary position stop apparatus of FIG. 1 from the door opening direction side. It is the figure which showed the state when the sliding door exists in the door opening position of the door closing braking device and the brake release device which are the main elements of the sliding door arbitrary opening position stop device of FIG. A fixed frame for attaching the braking device and the braking release device to the door pulley mounting member is indicated by an imaginary line. The door closing brake device and the brake releasing device are shown when the sliding door starts to move from the door closing position toward the door opening direction, and shows the state in which the braking member of the door closing brake device is lifted upward by the braking roller. Yes. The door closing braking device and the brake releasing device when the sliding door is in the door closing position are shown, and the braking member of the door closing braking device is in the same position as in FIG. It is a figure similar to FIG. 3 which shows the state which the brake release apparatus started to operate | move. It is a figure which shows the state by which the closing brake device was made into the inoperable position by the brake cancellation | release apparatus.

  1 and 2, 2 is a door frame, 3 is a sliding door, 4 is a rail fixed to the door frame, 5 is a door wheel that rolls on the rail, and 6 is a door wheel installation for attaching the door wheel to the upper edge of the sliding door 3. The member is shown.

  The sliding door arbitrary opening position stop device 10 according to the present invention includes a fixed frame 12 having a reverse U-shaped cross section fixed to the door pulley mounting member 6 with screws 7, and both side walls 12-1 of the fixed frame 12. It has the door closing brake device 14 and the brake releasing device 16 set between them. The fixed frame 12 conceptually forms a part of the sliding door integrally with the door pulley mounting member 6, and attaches the door wheel 5, the door closing brake device 14 and the brake releasing device 16 to the sliding door 3. The trolley mounting member 6 and the fixed frame 12 are shown as an imaginary line as an integral part, and the relationship between the door trolley mounting member 6 and the fixed frame 12 which are main elements of the sliding door arbitrary opening position stopping device 10 is clarified. Yes.

  The door closing braking devices 14 are respectively attached to both side walls 12-1 of the fixed frame 12 and extend horizontally in a stationary position with respect to the fixed frame 12 (and thus with respect to the sliding door 3) (FIG. 3). An inverted U-shaped support frame 20 pivotally attached to a screw 18-1 that defines a brake, a brake roller 22 supported by the support frame 20 and mounted on the rail 4, and a distance upward from the rail 4. And a braking member 24 supported by the support frame 20.

  As shown in FIG. 2, the brake roller 22 is rotated around a pivot line 22-4 (corresponding to the fourth pivot line in the claims) parallel to the first pivot axis. A shaft 22-1, a deformable elastic roller 22-2 mounted on the rail 4 and mounted around the rotating shaft 22-1, and the elastic roller 22-2 fixed to the rotating shaft 22-1 And mounting roller 22-3 to be attached. Both ends of the rotating shaft 22-1 are passed through rotating shaft storage grooves 20-2 (FIG. 3) provided on the pair of side walls 20-1 of the support frame 20. The rotating shaft storage groove 20-2 is provided so as to extend in parallel with the rail 4, and the braking roller 22 is relatively displaceable with respect to the support frame 20 in the opening / closing direction of the sliding door. The elastic roller 22-2 is preferably made of a flexible rubber material or synthetic resin.

The braking member 24 is a braking surface 24 that defines a roller passage 26 through which the braking roller 22 that is displaced in the door opening / closing direction relative to the support frame 20 while rotating on the rail 4 is passed between the braking member 24 and the rail 4. -1. Braking surface 24-1 is adapted to engage the brake roller 22, a constricted portion 24-2 to narrow the distance between the rails 4 of the roller path 26, it opens the door from the constricted portion 24-2 closed door side inclined to gradually increase the same spacing as they extend from the open door side gradually increase the distance between the rails 4 inclined portion 24-3 and stricture 24-2 as it extends in the direction a in the closing door direction B It has a portion 24-4. As shown in FIG. 3, the braking member 24 has a pair of inverted L-shaped openings 24-5 provided at intervals in the door opening and closing directions. As will be described later, a pin 30 whose vertical position is adjustable is passed between the side walls 20-1 of the support frame 20. Each opening 24-5 and a closed door portion 24-5B and open the door portion 24-5A, the door opening portion 24-5A provided extension 24-5C which extends toward the rail 4, braking member 24, it opens the door side position closing the door-side end portion 24-6 is substantially abut the pin 30 of the opening 24-5 (FIG. 3), opening the door side end portion 24-7 of opening 24-5 pin closed door side position substantially into contact with the 30 is capable displaced relative to the support frame 20 between (Fig. 4), when in the closed door side position, extension 24-5C are housed pins 30 Thus, the braking member 24 can be displaced in a direction away from the rail 4. The support frame 20 is provided with a leaf spring 29, the leaf spring 29 is adapted to urge the braking member 24 to the open door side position shown in FIG.

Braking roller 22, when the sliding door 3 is in the closing position, as shown in FIG. 5, in a position to engage the door opening side inclined surface 24-3 of the braking member 24 in the open door side position. In this state, when the sliding door 3 is moved in the door opening direction A , the braking roller 22 engaged with the door opening side inclined surface 24-3 rolls on the rail 4 toward the constricted portion 24-2. the braking member 24 against the urging force of the leaf spring 29 is displaced in the closing door direction B and the door-opening side position shown in FIG. 4, the opening direction a the braking roller 22 is further rolled on the rails 4 by the wheeled in toward the stenosis 24-2, is displaced in a direction away braking member 24 from the rail 4 (i.e. door opening side portion of the opening 24-5 of the brake member 24 in the closed door side position 24-5A No such extension 24-5C of engagement with the pin 30), through the roller path 26 between the constricted portion 24-2 and the rail 4 which is expanded by it, closing the door-side inclined surface of the braking member 24 24-4, so that the braking member 24 is engaged. The door opening-side position by the spring 29 to be displaced (Figure 3).

When the sliding door 3 opened in this manner is moved in the closing direction B , the sliding door 3 moves toward the constricted portion 24-2 while rolling on the rail 4, but in this case, the pin 30 has an opening 24-5. in order engaged with the closed door portion 24-5B, the braking member 24 from being displaced in a direction away from the rail 4 is limited, between the constricted portion 24-2 and the rail 4 of the brake member 24 The interval between the roller passages 26 is not increased, and the braking roller 22 is stopped from rotating due to a large frictional force between the braking member 24 and the rail 4, thereby stopping the movement of the sliding door in the closing direction. Is held in the open position. Thus to apply a force in the closing direction by hand is stopped sliding door, the braking roller 22 passes between the constricted portion 24-2 and the rail 4 of the brake member 24 while being largely deformed, open the door inclined It engages with the surface 24-3, and the braking member 24 is in the position shown in FIG.

  The following adjustment member 34 is used to adjust the position of the pin 30 in the vertical direction. That is, as shown in FIG. 2, the adjustment member 34 has an inverted U-shape as a whole having a pair of side walls 34-1 and a top wall 34-2 connecting both side walls, as shown in FIG. As described above, a screw portion 36-1 of an adjustment shaft 36 that is rotatable about an axis extending in the vertical direction is passed through and screwed to the top wall 20-3 of the support frame 20 to the top wall 34-2. The knob 36-2 attached to the upper end of the adjustment shaft 36 is rotated to move up and down along the screw portion 36-1. Both ends of the pin 30 are slidably accommodated in a vertically extending slot 20-4 provided on both side walls 20-1 of the support frame 20, and are guided by the slot 20-4 in the vertical direction. It has become.

  As described above, the sliding door arbitrary opening position stop device 10 according to the present invention is a braking release device for releasing the braking action of the door closing braking device 14 for braking the sliding door to be closed as described above. 16 is provided. The brake release device 16 can be pivoted around a second pivot 40 that is parallel to the first pivot 18 of the support frame 20 of the door closing brake 14 and is stationary with respect to the sliding door 3. The brake release member 42 is provided. The brake release member 42 has a locking projection 44 and a holding projection 46 extending in the radial direction from the second pivot 40, and the locking projection 44 is between the first pivot 18 and the second pivot 40. As shown in FIGS. 6 and 7, the door closing device 14 is engaged with the locking recess 20-5 formed in the support frame 20 of the door closing braking device 14 to hold the door closing braking device 14 in the operating position for performing the door closing braking operation described above. Further, when the brake release member 42 pivots clockwise around the second pivot 40, the door closing brake device 14 pivots counterclockwise around the first pivot 18 and the braking action described above. Pivot to the inoperable position where you can't. That is, when the support frame 20 of the door closing brake device 14 is rotated in the counterclockwise direction, the brake member 24 is pivoted around the first pivot 18 together with the support frame 20 and displaced in a direction away from the rail 4. As a result, the width of the roller passage 26 between the braking surface 24-1 of the braking member 24 and the rail 4 is expanded, and the braking action on the braking roller 22 by the braking surface 24-1 and the rail 4 is as described above. The sliding door 3 is automatically closed by the force in the closing direction B applied thereto. The holding protrusion 46 engages with the door closing brake device 14 when the door closing brake device 14 is pivoted by the locking protrusion 44 and holds it in the inoperable position as described above (FIG. 7). Preferably, the locking recess 20-5 of the support frame 20 of the door closing braking device 14 has the shape of one tooth groove of the first virtual gear centered on the first pivot 18 and the brake releasing member 42 The locking projection 44 is configured to have the shape of one tooth of the second virtual gear centered on the second pivot 40 that meshes with the first virtual gear.

  The brake release device 16 is engaged with the brake release member 42 and the locking projection 44 is engaged with the support frame 20 of the door closing brake device 14 to maintain the door closing brake device 14 in the operating position. It further includes a brake release activation device 50 that releases the engagement and moves the door closing brake device 14 to the inoperable position. In the illustrated embodiment, the brake release activation device 50 is engaged with the brake release member 42 and the locking projection 44 is engaged with the support frame 20 of the door brake device 14 to maintain the door brake device 14 in the operating position. The engaging member 52 that receives the signal from the outside such as a fire alarm signal is displaced to disengage the engaging member 52 from the brake releasing member 42. And a solenoid device 56 that is rotated around the second axis 40 by a spring 54 wound around.

  In the illustrated embodiment, the locking member 52 is a lever that is pivotable around a third pivot 58 that is parallel to the first pivot 18 and that is stationary relative to the sliding door 3. A pin 60 parallel to the third pivot 58 is provided at one end of the shaft, and a hollow pipe 62 that is rotatable around the pin 60 is locked to the locking recess 64 of the brake release member 42, and the other end is Connected to the solenoid device 56, when the solenoid device 56 receives a signal from the outside, the solenoid device 56 drives the third pivot 58 around the third pivot 58, and the hollow pipe 62 provided at the one end of the lever releases the brake. The member 42 is removed from the locking recess 64. The rotatable hollow pipe 62 is provided so that the friction with the locking recess 64 is reduced to facilitate removal from the locking recess 64, and the solenoid device 56 moves the locking member (lever) 52 with a small force. To be able to do that.

  A switch operating projection 68 that pivots together with the brake releasing member 42 is provided around the second pivot 40, and the solenoid device is operated so that the locking projection 44 of the brake releasing member 42 supports the closed brake device. When the support frame 20 is disengaged from the frame 20 and rotated in the counterclockwise direction and the holding projection 46 is engaged with the holding frame 20, the switch operating projection 68 is moved to the limit switch 70 fixed to the fixed frame 12. Engage and stop operation of the solenoid device 56. When the operation of the solenoid device 56 is stopped, the locking member 52 is returned in the counterclockwise direction by the torsion spring 72 wound around the axis 58, but the brake release member 42 is held at the position rotated by the spring 54. .

  As mentioned above, although embodiment of the sliding door arbitrary opening position stop apparatus concerning this invention was described, this invention is not limited to this embodiment. For example, although the illustrated braking roller 22 is shown as engaging with the rail 4, it can also be engaged with a door as disclosed in the above-mentioned Patent Document 2. Further, the brake releasing member 42 can be manually rotated. Various other changes are possible.

Door frame 2; Sliding door 3; Rail 4, Door wheel 5: Door wheel mounting member 6; Screw 7; Sliding door arbitrary opening position stop device 10; Fixed frame 12; Side wall 12-1; Closed brake device 14; 1 pivot axis 18; support frame 20; side wall 20-1; rotating shaft storage groove 20-2; top wall 20-3; slot 20-4; locking recess 20-5; Elastic roller 22-2; mounting roller 22-3; (fourth) pivot axis 22-4; braking member 24; braking surface 24-1; constricted portion 24-2; portion 24-4; opening 24-5; open the door portion 24-5A; closed door portion 24-5B; extension 24-5C; door-opening-side end portion 24-6; closed-door side end portion 24-7; roller Passage 26; pin 30; leaf spring 29; adjusting member 34; side wall 34-1; 34-2; adjustment shaft 36; screw 36-1; knob 36-2; second pivot 40; braking release member 42; locking projection 44; holding projection 46; braking release activation device 50; Spring 54; Solenoid device 56; Third pivot 58; Pin 60; Hollow pipe 62; Locking recess 64; Switch operating protrusion 68; Limit switch 70; Door closing direction side A; Door opening direction B

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