JP2007186987A - Sliding door sudden closure preventing device, and sliding door device equipped with the device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding door sudden closure preventing device constituted to apply braking force when a sliding door rapidly closes and not to apply braking force when the sliding door silently closes. <P>SOLUTION: The sliding door sudden closure preventing device has a fixed braking member 58 mounted to a horizontal frame part 16, and a movable braking member 48 moved into a braking position to be engaged with the fixed braking member 58 to brake the sliding door 12 if the speed of the sliding door is a predetermined value or higher when the sliding door approaches the closed position as shown in Fig.2, and into a non-braking position to perform no braking operation without being engaged with the fixed braking member 58 if the speed of the sliding door is the predetermined value or lower. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sliding door, and more particularly to a quick closing prevention device that prevents the sliding door from moving to a closing position at a predetermined speed or more when the sliding door is closed, and a sliding door device including the quick closing prevention device.

  If the sliding door is closed suddenly, it suddenly collides with the vertical frame of the opening to which the sliding door is attached, producing a loud sound, or the person trying to close the sliding door There is a risk of pinching.

For this reason, a sliding door abrupt closing prevention device has been developed that brakes the sliding door when the sliding door approaches the vertical frame portion of the opening (see Patent Document 1 and Patent Document 2).
JP-A-8-303108 JP2002-4703

  The sliding door rapid closing prevention device that has been developed so far uses a piston cylinder such as an air damper or an oil damper, and the sliding door approaching the vertical frame engages and contracts the piston cylinder. Thus, a braking force is generated. Therefore, in this device, even when the sliding door is closed gently, a resistance force to the sliding door is generated, and the braking device rather disturbs.

  In view of such points, the present invention can reduce the resistance to the sliding door as much as possible when quietly closing the sliding door, and when the sliding door is about to be closed at a predetermined speed or more, An object of the present invention is to provide a sliding door quick closing prevention device that brakes the sliding door to prevent the sliding door from closing suddenly, and a sliding door including the same.

That is, the present invention provides at least one horizontal frame portion (corresponding to the upper horizontal frame portion 16 in the embodiment described below) that defines an opening and a vertical frame portion (in the same embodiment) that extends vertically from one end of the horizontal frame portion. An opening frame having a reference numeral 22)
A sliding door (10) that is moved in parallel to the horizontal frame within the open frame, and in a closed position, a vertical edge (15) that is adjacent to the vertical frame, and the vertical edge A sliding door having a horizontal edge (13) extending in parallel adjacent to the horizontal frame from one end;
A sliding door quick closing prevention device (24) attached to a sliding door device comprising:
A fixed braking member (corresponding to the horizontal plate 58) fixed to the horizontal frame portion;
When the sliding door approaches the closing position, the sliding door engages with the fixed braking member (58) to brake the sliding door when the sliding door is at a predetermined speed or higher, and when the sliding door is lower than the predetermined speed, the braking door is engaged. A movable braking member (corresponding to the braking shoe block 48) which is in a non-braking position where the braking is not performed without engaging the fixed braking member;
There is provided a sliding door abrupt closing prevention device.

  That is, in this sliding door rapid closing prevention device, the sliding door that approaches the closing position at the predetermined speed or higher is braked to prevent the sudden closing, and the sliding door that is closed at the predetermined speed or lower is braked. It is designed not to be applied. Further, when the sliding door stops or falls below the predetermined speed by applying braking, the movable braking portion becomes the non-braking position, and the braking force due to the engagement with the fixed braking member is released to the closing position. It can be moved.

Specifically, the sliding door rapid closing prevention device is:
The movable frame (28) is attached to the horizontal frame portion (16) at a predetermined distance from the vertical frame portion (22), and can be displaced toward the vertical frame portion by a sliding door toward the closed position. ,
The movable frame may support the movable braking member (48) so as to be displaceable between a braking position and a non-braking position.

  That is, when the sliding door toward the closed position has a speed higher than a predetermined speed, the movable braking member engages with the fixed braking member, so that the sliding door can be braked via the movable braking member.

In addition, the sliding door sudden closing prevention device
An activation member (corresponding to the activation frame 40) attached to the movable frame (28) in a displaceable manner;
A first spring member (corresponding to the coil spring 78) attached to the movable frame and resisting displacement of the starting member relative to the movable frame;
Have
When the sliding door approaches the closing position at the predetermined speed or higher, the activation member is displaced relative to the movable frame against the first spring, thereby moving the movable braking member (48) to the braking position. It can be moved.

  In this case, the first spring member returns the starting member displaced by the sliding door having a predetermined speed or more in a direction away from the vertical frame in response to the sliding door becoming less than the predetermined speed, thereby moving the movable braking member. To return from the braking position to the non-braking position.

In particular,
An activation member (40) is attached to the movable frame so as to be displaceable in a direction parallel to the horizontal frame portion;
A first spring member (78) is attached to the movable frame to resist the actuating member from being displaced relative to the movable frame in the direction of the vertical frame;
When the sliding door approaches the closing position at a predetermined speed or more, the activation member is displaced relative to the movable frame toward the vertical frame by the sliding door, thereby moving the movable braking member to the braking position. Can be.

Furthermore,
When the sliding door approaches the closed position at a predetermined speed or more, the starting member (40) is displaced relative to the movable frame (28), and the movable braking member (48) is braked to the fixed braking member (58). Braking the movement of the movable frame toward the vertical frame, thereby braking the sliding door;
The sliding door abrupt closing prevention device further prevents the sliding door from being rebounded by the reaction force in the direction away from the vertical frame received from the movable frame when the movable frame (28) is braked. The sliding door rebound preventing means (100) can be provided.
When braking is applied suddenly, the sliding door is prevented from being rebounded.

In particular,
A trigger member (84) that is fixed to the sliding door and moves the activation member (40) toward the vertical frame when the sliding door approaches the closed position;
The sliding door rebound prevention means (100) can be magnetically coupled to the activation member and the trigger member to prevent the sliding door from rebounding.

  This sliding door rebound prevention means may have a magnet (110) attached to the activation member (40).

In particular,
The sliding door rebound prevention means
A magnet (110) attached to the activation member (40) so as to face the trigger member (84) in the moving direction of the sliding door;
An adsorption plate (112) made of a magnetic material sandwiched between the activation member (40) and the trigger member (84) when the trigger member moves the activation member (40) toward the vertical frame portion;
When the suction plate is sandwiched between the starting member and the trigger member, the trigger member (84) is sandwiched between the suction plate (112) and fixed to prevent the sliding door from rebounding. And a rebound preventing member (corresponding to the sandwiching plate 122).

More specifically,
The suction plate (112) is set so as to be relatively displaceable in the moving direction of the sliding door with respect to the movable frame (28) and away from the magnet. When the sliding door approaches the vertical frame portion, the trigger member ( 84) and can be displaced to a position where it engages the magnet (110).

Also,
A rebound prevention member (122) sandwiches the trigger member (84) with the magnet (110) to prevent rebound, and a rest position deviated from a path along which the trigger member moves toward the magnet. The suction plate (112) is moved toward the magnet by the trigger member (84) so that it can be moved from the rest position to the rebound prevention position.

Furthermore,
A rebound prevention member is attached to a pivot arm pivotally attached to the suction plate, and the pivot arm is positioned at a rest position based on the displacement of the suction plate toward the magnet by the trigger member. Cam means (in the embodiment, the roller 118 and the inclined cam surface 120 are configured) can be provided so as to be displaced from the position to the rebound prevention position.
A second spring member can be set between the suction plate (112) and the rebound preventing member (122) so as to bias the rebound preventing member to the rest position.

Specifically, the cam means includes:
A cam member fixed to the fixed frame;
A cam follower attached to the swing arm and engaged with a cam contour surface of the cam member by a biasing force of the second spring member;
Have
The cam contour curve can be configured to displace the anti-reflective member from the rest position to the anti-reflective position based on the suction plate being displaced toward the magnet by the trigger member. .

  Further, provided between the movable braking member (48) and the starting member (40), and for displacing the movable braking member (48) between the braking position and the non-braking position by the displacement of the starting member (40). It can have a cam mechanism.

  Specifically, the cam mechanism includes a roller (46) rotatably attached to the activation member, and an inclined surface that is provided on the movable braking member (48) and engages with the roller. 40) is displaced relative to the movable frame (28) so that the roller rolls on the inclined surface, thereby displacing the movable braking member between the braking position and the non-braking position. Can be.

  Further, a second spring member (between the opening frame and the movable frame), which returns the movable frame to a position separated from the vertical frame portion by the predetermined distance when the sliding door is moved from the closed position to the open position. Corresponding to the coil spring 64).

  The present invention also provides a sliding door provided with an opening frame to which the sliding door rapid closing prevention device as described above is attached, and a trigger member that engages with the sliding door rapid closing prevention device when the sliding door approaches the closed position. There is provided a sliding door device in which when the sliding door approaches the closing position at a predetermined speed or higher, the movable braking member is set to the braking position by the trigger moving member.

The present invention has the configuration as described above, and when the sliding door is about to be closed at a certain speed or higher, the sliding door is braked to prevent the sliding door from closing suddenly. it can. In addition, when the sliding door is about to be closed quietly, no braking force is applied due to the engagement between the fixed braking member and the movable braking member, and resistance to the movement of the sliding door compared to a conventional piston cylinder type device. It is possible to close in a state where there is substantially no. Even when a spring member is provided to return the sudden closing prevention device to the original position (specifically, to return the movable frame to the original position) when the sliding door is moved from the closed position to the open position, the movable frame is provided. Since the weight of the spring is light, for example, about 100 g, the spring force of the spring may be small, and therefore, the resistance force can hardly be felt when the sliding door is closed.
Furthermore, according to the present invention, even when a sudden braking is applied to the sliding door toward the closing position by the sudden closing prevention device, the sliding door can be prevented from bouncing back.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sudden closing prevention device according to the present invention and a sliding door device equipped with the device will be described below with reference to the accompanying drawings.

  FIG. 1 shows a state in which the sliding door 12 is approaching the closed position in the sliding door device 10 according to the present invention, and FIG. 2 shows a state when the sliding door 12 is in the closed position.

  The sliding door device 10 has a frame 14 and a sliding door 12 that define an opening of the device.

  A rail 18 is set on the upper horizontal frame portion 16 of the frame 14, and the sliding door 12 has a roller 20 attached to a pair of brackets 19 provided on the upper horizontal edge portion 13 that rolls on the rail 18. Engageable and suspended on the rail.

  On the rail 18 adjacent to the left vertical frame portion 22 as seen in the figure of the frame 14, a sliding door rapid closing prevention device 24 which is a feature of the present invention is provided.

  The sliding door quick closing prevention device 24 is shown in an enlarged manner in FIGS. 3 and 6 to 9, and as shown in a perspective exploded view in FIG. 4, it is attached to the rail 18 by a support column 25 (FIGS. 1 and 2). It has a fixed frame 26 that is fixed and extends horizontally, and a movable frame 28 that is set so as to be relatively displaceable in the horizontal direction with respect to the fixed frame 26.

  The fixed frame 26 is a groove-type steel that opens downward, and is fixed to the upper horizontal frame portion 16. Elongated guide holes 30 extending in the horizontal direction are formed in both side walls 29 of the fixed frame 26.

  As shown in FIG. 4, the movable frame 28 is substantially box-shaped, and its side walls 32 are set adjacent to the inside of the side walls 29 of the fixed frame 26, and three pins extending in the transverse direction thereof. 33, 34, and 35 are fixed, and both ends of the pins 33, 34, and 35 are slidably engaged with the guide holes 30 of the fixed frame 26. In both side walls 32 of the movable frame 28, elongated guide holes 36 extending in the horizontal direction are formed.

  An actuating frame 40 is attached to the movable frame 28 so as to be relatively displaceable in the horizontal direction relative to the movable frame. The actuating frame 40 has two guide pins 42 and 44 extending in the transverse direction. Are attached to the guide holes 36 on both side walls of the movable frame 28, and a cam roller 46 is rotatably attached to the guide pins 44.

  The movable frame 28 is further provided with a brake shoe block 48. That is, the brake shoe block 48 is provided with transverse holes 50 and 52 through which the pins 34 and 35 of the movable frame 28 are passed. The transverse holes 50 and 52 are larger in diameter than the pins 34 and 35, and the brake shoe block 48 48 can be displaced in the vertical direction with respect to the movable frame 28. Further, a cam inclined surface 54 is formed on the lower surface of the brake shoe block 48, and a cam roller 46 attached to the start frame 40 is engaged so as to be able to roll.

  The fixed frame 26 is provided with a horizontal plate 58 that extends in the horizontal direction adjacent to the top surface 31 of the movable frame 28 and the top surface 59 of the brake shoe block 48. As will be described later, when the starting frame 40 is displaced relative to the movable frame 28 toward the vertical frame portion 22, the cam roller 46 rolls on the inclined surface 54 of the brake shoe block 48, and the The brake shoe block 48 is displaced upward, and the top surface 59 of the brake shoe block 48 is pressed against the horizontal plate 58. That is, in the illustrated sliding door abrupt closing prevention device, the horizontal plate 58 constitutes a fixed braking member, and the braking shoe block 48 constitutes a movable braking member.

  A pair of spring shafts 76 that are set horizontally are set on the movable frame 28, and a coil spring 78 is set around each of the spring shafts. One end (the left end in FIG. 3) of the coil spring 78 is engaged with a spring engaging member 79 set on the spring shaft 76, and the other end is an activation frame set so as to be slidable on the spring shaft 76. 40 spring engaging walls 80 are engaged. As shown in FIG. 5, the spring engaging member 79 is slidable along the spring shaft 76, and the tip of the adjustment screw 82 screwed to the movable frame 28 is engaged with the spring engaging member 79. Thus, the position of the spring engaging member 79 is adjusted by screwing the adjusting screw 82, so that the strength of the coil spring 78 can be adjusted. It is like that. In a state where the sliding door 12 is not approaching the closed position (FIG. 2), the coil spring 78 urges the activation frame 40 to the right, and the pin 44 fixed to the activation frame 40 has the movable frame 28. The start frame 40 is positioned with respect to the movable frame 28 in this state. When the starting frame 40 is in this position, the brake shoe block 48 is in a non-braking position away from the horizontal plate 58. When the start frame 40 is displaced to the left from this position with respect to the movable frame 28, the cam roller 46 rolls on the cam inclined surface 54 of the brake shoe block 48, so that the brake shoe block 48 is seen in the figure. The brake position is set so as to be displaced upward and engage with the horizontal plate 58.

  A coil spring 64 extending in the horizontal direction is set between the horizontal plate 58 and the top plate 62 of the fixed frame 26. Specifically, the horizontal plate 58 is formed by a pair of elongate members 61, 61 being set apart from each other in the width direction and fixed to the fixed frame 26 by a plurality of screws 63. It is set in a groove-like gap 73 formed between the elongated members 61 and 61. The left end 68 (FIG. 3) of the coil spring 64 is locked to a locking portion 70 formed by bending the left end of the top plate 62 downward, and the right end 72 is a pin extending upward into the gap 73 from the movable frame 28. 74, and urges the movable frame 28 to the right. In the illustrated example, the pin 35 fixed to the movable frame 28 by the urging force of the coil spring 64 in the state where the sliding door 12 is not approaching the closed position (FIG. 2), guide holes 30 on both side walls 29 of the fixed frame 26. The movable frame 40 is positioned with respect to the fixed frame 26.

  As shown in FIGS. 1 and 2, the trigger member 84 is fixed to the upper end portion of the bracket 19 provided on the upper horizontal edge 13 of the sliding door 12, and the sliding door 12 (the vertical edge 15 thereof) is vertical. When approaching the frame portion 22 (that is, approaching the closing position), the trigger member 84 is engaged with the starting frame 40 of the sudden closing prevention device 24.

  In this sliding door device 10, when the sliding door 12 approaches the vertical frame portion 22 at a predetermined speed or more, the trigger member 84 of the sliding door 12 engages with the activation frame 40, and the activation frame 40 is moved against the coil spring 78. It is displaced in the direction of the vertical frame portion 22. As a result, the cam roller 46 rolls on the inclined surface 54 of the movable brake shoe block 48, displaces the brake shoe block 48 upward, and engages the horizontal plate 58 of the fixed frame to generate a friction braking force.

  Due to this friction braking force, the movement of the movable frame 28 in the direction of the vertical frame portion 22 is braked, and the downward force applied to the cam roller 46 from the inclined surface 54 gradually increases, whereby the pins 42, 44. And the friction between the side surface of the guide hole 36 increases. As a result, the movement of the sliding door 12 is braked and the speed is reduced. When the speed of the sliding door becomes equal to or lower than a predetermined speed (including the case where the sliding door is stopped), the coil spring 78 acts to return the starting frame to the original position by the restoring force, thereby the cam roller. The pressing force of the friction shoe block 48 on the upper side by 46 decreases, and the friction shoe block 48 deviates from the braking position and becomes the non-braking position.

  Therefore, the sliding door is advanced to the closed position without being subjected to the braking force by the brake shoe block in a state where the sliding door is at a predetermined speed or less. At this time, the spring force of the coil spring 64 acts against the sliding door toward the closing position, but the coil spring 64 is for returning the movable frame to the state before being moved to the closing position. The mass of the movable frame is, for example, as small as about 100 g, and the spring force of the coil spring 64 can be small. Therefore, when the sliding door having a large mass is moved to the closed position, the force against it is ignored. It will be as much as possible.

  When the sliding door quietly approaches the vertical frame portion 22 at a speed below a predetermined speed, the coil spring 64 contracts with little contraction of the coil spring 78 and can be moved to the closed position. That is, in this case, the brake shoe block 48 remains in the non-braking position, and no braking force is generated by the engagement with the horizontal plate 58, and therefore it can be moved to the closing position with a small force.

  10 thru | or 13 shows the sliding door quick-close prevention apparatus 24 of the sliding door apparatus 10 which concerns on other embodiment of this invention, and attaches | subjects the same reference number with respect to the same element as 1st Embodiment mentioned above. It is shown.

  The sliding door rapid closing prevention device 24 is different from that of the first embodiment in that the sliding door rebound prevention means 100 is provided. When the sliding door is moved toward the closing position, the sliding door sudden closing prevention device 24 is activated and the movable frame 28 is suddenly braked and fixed to the fixed frame 26. The reaction prevents the sliding door from bouncing back toward the open position.

  That is, the sliding door rebound prevention means 100 supports the magnet 110 (attached to the right end in the drawing) of the start frame 40 and the suction plate 112 made of a magnetic material attracted to the magnet, and the movable frame 28. A slide member 114 slidably attached to the slide member 114, a pivot arm 116 pivotally attached to the slide member 114 by a pivot 115, and a roller 118 rotatably attached to the pivot arm. An inclined cam surface 120 (FIG. 12) formed at the right end of the frame 26, a sandwiching plate 122 formed at the free end of the pivot arm 116, and a rotation shaft 124 of the roller 118, End portions have torsion springs 126 set so as to press-engage the suction plate 112 and the sandwiching plate 122, respectively.

  Specifically, the slide member 114 has a shape similar to the movable frame 28 shown in FIG. 4, and a pair of rectangular shapes extending horizontally parallel to each other in the closed position direction from both sides in the width direction of the suction plate 112. It has a plate-shaped member 130 (only one is shown in the figure). Each of the plate-like members 130 extends horizontally between the left and right side surfaces 48 ′ of the brake shoe block 48 (FIG. 4) and the left and right plate-like members 28 ′ constituting the movable frame 28. Each plate-like member 130 is provided with a horizontally extending guide hole 132 through which the guide pins 34 and 35 are passed. 10 to 12, it is shown overlapping with the guide hole 30 provided in the fixed frame 26, and its extension range is not clear, but its right end is as shown in FIG. 10, and the left end is shown in FIG. 10 on the left side adjacent to the guide pin 34. In short, the guide hole 132 allows the slide member 114 to move in the horizontal direction between the position of FIG. 10 and the position of FIG. 11 relative to the movable frame 28 by the guides of the guide pins 34 and 35. ing.

  When the sliding door is not near the closed position, the movable frame 28 is in the position as described above (FIG. 10). In this state, the slide member 114 of the sliding door rebound prevention means 100 is located at the right end position (FIG. 10) of the movable range of the slide member 114 with respect to the movable frame 28, and the torsion spring 126 includes the suction plate 112 and the sandwiching plate 122. As a result, the pivot arm 116 is inclined upward with respect to the slide member 114 so that the roller 118 is on the inclined cam surface 120.

  In this state, when the sliding door is moved toward the closed position, the trigger member 84 fixed to the upper horizontal edge of the sliding door engages with the suction plate 112 and pushes the slide member 114 to the left, The suction plate 112 is attracted to the magnet 110. At this time, the pivot arm 116 is moved to the left along with the movement of the slide member 114. However, since the roller 118 is engaged with the inclined cam surface 120, the roller 118 moves along the inclined cam surface 120. When the suction plate 112 is displaced downward and the suction plate 112 is attracted by the magnet (FIG. 11), the roller 118 is disengaged from the inclined cam surface and engages with the horizontal plane following the inclined cam surface, so that the pivot arm 116 is horizontal. become. As a result, the sandwiching plate 122 is in the vertical position as shown in FIG. 11, and the trigger member 48 of the sliding door is sandwiched between the suction plate 112. When the movable frame 28 that is moved to the left by the sliding door toward the closing position is suddenly braked and stopped with respect to the fixed frame 26 by the action of the sliding door rapid closing prevention device 100, the magnet 110 is moved by the reaction. In order not to be bounced, the magnetic force is sufficient to attract the suction plate 112.

  Therefore, in the second embodiment, even if the sliding door abrupt closing prevention device 24 suddenly operates, the sliding door receives proper braking without being rebounded toward the open position, and thus reaches the closed position shown in FIG. Can move quietly.

  When the sliding door is moved from the closed position toward the open position, the trigger member 84 sandwiched between the suction plate 112 and the sandwiching plate 122 moves the movable frame 26 to the right, and the movable frame 26 is moved to the position shown in FIG. Then, the pin 35 attached to the movable frame is engaged with the right end of the guide hole 30, and the movable frame is stopped. When the sliding door is moved further toward the open position, the trigger member 84 pushes the clamping plate 122 to the right, so that the pivot arm 116 resists the magnetic attractive force of the magnet 110 and causes the pivot 115 to move. Pushing upward toward the center results in the initial state shown in FIG.

  The trigger member 84 is preferably formed of an elastic material such as rubber or resin. By doing so, when the trigger member 84 collides with the suction plate 112, and when the suction plate 112 is pushed by the trigger member 84 and the suction plate 112 collides with the magnet 110, a collision sound is generated. Can be relaxed. Instead of forming the trigger member 84 from an elastic material such as rubber, the surface of the trigger member 84 that engages the suction plate 112 or the surface of the suction plate 112 that engages the trigger member 84 is made of elastic material such as rubber. You may make it cover with a member. The embodiments of the sliding door device according to the present invention have been described above, but the present invention is not limited to these embodiments. For example, the sliding door rebound prevention device 100 can directly attach the magnetic member attracted to the magnet 110 to the trigger member 84 without using the attracting plate 112, the pivot arm 116, the sandwiching arm 122, and the like. However, the configuration in which the trigger member 84 formed of an elastic material such as rubber is attracted to the magnet 110 via the attracting plate 112 can obtain an excellent buffering effect and the like.

It is an outline explanatory view of the principal part of a sliding door device provided with the sudden closure prevention device concerning the present invention. It is a schematic explanatory drawing which shows a state when the sliding door of the apparatus becomes a closed position. It is an expansion outline explanatory view showing the principal part of the sudden closure prevention device. It is a disassembled perspective view of the sudden closing prevention device. It is outline explanatory drawing seen from the bottom part side of the sudden closing prevention apparatus. It is operation | movement explanatory drawing of the same quick closing prevention apparatus, and is a figure which shows the state which the quick closing prevention apparatus starting member of the sliding door which approaches a closing position is approaching the sudden closing prevention apparatus. It is an operation explanatory view of the sudden closing prevention device, and the sudden closing prevention device starting member of the sliding door is engaged with the activation frame of the sudden closing prevention device and pushed to the left, and the cam roller moves the braking shoe block to the upper braking position. Shows the state. FIG. 6 is an operation explanatory view of the sudden closing prevention device, in which braking force is applied to the starting frame due to braking by the braking action of the braking shoe block and the sliding door decreases in speed, thereby causing the starting frame to move downward. The state moved toward the braking position is shown. It is operation | movement explanatory drawing of the sudden closing prevention apparatus, and shows the state by which the sliding door was moved to the closing position in the state which the braking by a brake shoe block does not arise. FIG. 7 is a view similar to FIG. 6, but showing another embodiment of the sliding door rapid closing prevention device of the present invention. It is a figure similar to FIG. 7, and shows another embodiment. It is a figure similar to FIG. 9, and shows another embodiment of the same

Explanation of symbols

Sliding door device 10; Sliding door 12; Upper horizontal edge portion 13; Frame 14; Vertical edge portion 15; Upper horizontal frame portion 16; Rail 18; Bracket 19; 25; fixed frame 26; movable frame 28; plate-like member 28 '; side wall 29; guide hole 30; top surface 31; side wall 32; pins 33, 34, 35; Pins 42, 44; Cam roller (part of cam mechanism, cam follower) 46; Brake shoe block (movable brake member) 48; Side surface 48 '; Cross hole 50, 52; Surface) 54; horizontal plate (fixed braking member) 58; top surface 59; elongated member 61; top plate 62; coil spring (third spring member) 64; Locking part 70; Right end 72; Gap 73; Pin 74; Spring shaft 76; Coil spring (first spring member) 78; Spring fixing member 79; Spring engagement wall 80; Trigger member 84; 100; Adsorption plate 112: Slide member 114; Pivoting shaft 115; Pivoting arm 116; Roller (part of cam means, cam follower) 118; Inclined cam surface (part of cam means, cam member) 120; (Repelling prevention member) 122; pivot 124; torsion spring (second spring member) 126; plate-like member 130; guide hole 132

Claims (17)

An opening frame having at least one horizontal frame portion defining the opening portion and a vertical frame portion extending perpendicularly from one end of the horizontal frame portion;
A sliding door that is moved in parallel to the horizontal frame within the opening frame, and in the closed position, a vertical edge that is adjacent to the vertical frame, and the horizontal frame from one end of the vertical edge A sliding door having a horizontal edge extending parallel to and adjacent to
A sliding door quick closing prevention device attached to a sliding door device comprising:
A fixed braking member fixed to the horizontal frame portion;
When the sliding door approaches the closing position, the sliding door engages with the fixed braking member when the sliding door is at a predetermined speed or higher, and the braking position is set to brake the sliding door. A movable braking member that is set to a non-braking position that does not engage with and does not perform braking,
A sliding door sudden closing prevention device. A movable frame attached to the horizontal frame portion at a predetermined distance from the vertical frame portion and displaceable toward the vertical frame portion by a sliding door toward the closed position;
The movable frame supports the movable braking member so as to be displaceable between the braking position and the non-braking position.
The sliding door abrupt closing prevention device according to claim 1. An activation member attached to the movable frame so as to be displaceable;
A first spring member attached to the movable frame to resist displacement of the activation member relative to the movable frame;
Have
When the sliding door approaches the closed position at the predetermined speed or higher, the activation member is displaced relative to the movable frame against the first spring member, thereby moving the movable braking member to the braking position. The sliding door abrupt closing prevention device according to claim 2, wherein the sliding door abrupt closing prevention device is provided. The activation member is attached to the movable frame so as to be displaceable in a direction parallel to the horizontal frame portion,
The first spring member is attached to the movable frame to resist the actuating member from being displaced relative to the movable frame in the direction of the vertical frame portion;
When the sliding door approaches the closing position at the predetermined speed or higher, the activation member is relatively displaced by the sliding door toward the movable frame toward the vertical frame portion, thereby moving the movable braking member. The sliding door rapid closing prevention device according to claim 3, wherein the sliding door is closed to the braking position. The sliding door approaches the closed position at a speed equal to or higher than the predetermined speed, the activation member is displaced relative to the movable frame, and the movable braking member is braked and engaged with the fixed braking member. Brake the movement towards the vertical frame, thereby braking the sliding door;
The sliding door sudden closing prevention device is further rebounded from the movable frame by a reaction force acting in a direction away from the vertical frame portion received from the movable frame when the movable frame is braked. 5. The sliding door abrupt closing prevention device according to claim 3 or 4, further comprising a sliding door rebound prevention means for preventing the sliding door. A trigger member that is fixed to the sliding door and moves the activation member toward the vertical frame when the sliding door approaches the closed position;
6. The sliding door abrupt prevention device according to claim 5, wherein the sliding door rebound prevention means magnetically couples the activation member and the trigger member to prevent the sliding door from rebounding.   The sliding door abrupt closing prevention device according to claim 6, wherein the sliding door rebound prevention means includes a magnet attached to the activation member. The sliding door rebound preventing means is
A magnet attached to the activation member so as to face the trigger member in the moving direction of the sliding door;
An adsorption plate made of a magnetic material sandwiched between the activation member and the trigger member when the trigger member moves the activation member toward the vertical frame portion;
When the suction plate is positioned between the activation member and the trigger member, the rebound prevention member prevents the rebound by fixing the trigger member between the suction plate and the suction plate. The sliding door sudden closing prevention device according to claim 7, comprising:   The suction plate is set so as to be displaceable relative to the movable frame in the moving direction of the sliding door and away from the magnet, and when the sliding door approaches the vertical frame portion, 9. The sliding door rapid closing prevention device according to claim 8, wherein the sliding door rapid closing prevention device is adapted to be displaced to a position where it is engaged and engaged with the magnet.   The rebound prevention member includes a rebound prevention position for preventing the rebound of the sliding door by sandwiching the trigger member with the magnet, and a rest position deviated from a path in which the trigger member moves toward the magnet. 10. The sliding door emergency according to claim 9, wherein the sliding door suddenly moves from the rest position to the rebound prevention position based on the suction plate being displaced toward the magnet by the trigger member. Close prevention device. The anti-bounce member is attached to a pivot arm pivotally attached to the suction plate;
The sliding door abrupt closing prevention device is configured so that the rebound prevention member is displaced from the rest position to the rebound prevention position based on the suction plate being displaced toward the magnet by the trigger member. 11. The sliding door rapid closing prevention device according to claim 10, further comprising cam means for pivoting the moving arm.   12. The sliding door abrupt closing prevention device according to claim 11, further comprising a second spring member that is set between the suction plate and the rebound preventing member and biases the rebound preventing member to the rest position. The cam means
A cam member fixed to the fixed frame;
A cam follower attached to the swing arm and engaged with a cam contour surface of the cam member by a biasing force of the second spring member;
Have
The cam contour curve is configured to cause the cam follower to displace the rebound prevention member from the rest position to the rebound prevention position based on the suction plate being displaced toward the magnet by the trigger member. 13. The sliding door sudden closing prevention device according to claim 11 or 12 for guiding.   14. A cam mechanism provided between the movable braking member and the activation member and configured to displace the movable braking member between the braking position and the non-braking position by displacement of the activation member. The sliding door rapid closing prevention apparatus in any one of. The cam mechanism is
A roller rotatably mounted on the actuating member;
The movable braking member is provided with an inclined surface that engages with the roller,
When the actuating member is displaced relative to the movable frame, the roller rolls on the inclined surface, thereby moving the movable braking member between the braking position and the non-braking position. The sliding door rapid closing prevention device according to claim 14, wherein the sliding door rapid closing prevention device is displaced.   A third spring provided between the opening frame and the movable frame, and returns the movable frame to the position separated from the vertical frame when the sliding door is moved from the closed position to the open position. The sliding door sudden closing prevention device according to any one of claims 2 to 15, further comprising a member. A sliding door device to which the sliding door rapid closing prevention device according to any one of claims 1 to 16 is attached.

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