JP4553721B2 - Airtight door opening and closing device - Google Patents

Description

  In particular, the present invention relates to a hermetic door opening and closing device that provides hermeticity in a heavy automatic door.

  An airtight holding type automatic door is provided with a packing member having elasticity on the frame side of the wall facing the upper and left and right vertical stands, and a skirt-like packing member is provided on the lower side of the door. ing. The top and left and right packing members are generally made of chloroprene rubber formed in a hollow shape in order to obtain appropriate elasticity. The rail is provided with a refractive descending part on the wall frame side near the position where the door is closed, and a stop recess for the wheel is provided, and when the door reaches the closed position, the suspension car is provided with a refractive descending part. By descending into the stop recess while descending, the door is urged toward the wall frame side to come into close contact. In addition, a mountain-shaped lower guide is provided on the floor surface of the opening located on both sides of the lower arm, and when the suspension wheel falls into the locking recess and the door is lowered, the guide fittings provided on the lower arm of the door are It is urged to the wall face frame side (Patent Document 1).

In heavy automatic doors, a chain is used instead of a belt to move the automatic doors invisible. However, as mentioned above, when the automatic door body moves obliquely in parallel by moving the linear part of the rail and dropping into the stop recess while descending the refractive descending part, some twists and expansion and contraction are problematic in the belt. Although there is no problem with vertical movement in the chain, it is not acceptable for twisting or stretching in an oblique direction. For this reason, it is desirable that the automatic door body can be translated in an oblique direction without imparting an oblique distortion to the chain.
Further, in a heavy automatic door, there is a problem in that it is not possible to urge the lower lid with a simple configuration such as the mountain-shaped lower guide to urge the lower arm towards the wall frame side. there were.
Japanese Patent Application Laid-Open No. 2004-270343.

The problem to be solved is that in a heavy-duty automatic door driven by a chain, the chain cannot tolerate torsion and expansion / contraction in an oblique direction, so the automatic door body moves in parallel without giving the chain an oblique distortion. It is impossible.
In addition, in a heavy automatic door, it is impossible to reliably urge the lower lid on the wall face frame side.
It is an object of the present invention to allow an automatic door body to move parallel to a chain-driven heavy-duty automatic door without subjecting the chain to distortion in the oblique direction such as twisting and expansion and contraction, and to ensure that the lower lid is on the wall frame side. To get something that can be energized.

In the present invention, a chain is passed between a drive pulley and a driven pulley provided in the seam, both ends of the chain are connected to suspension frames on both sides of the slide door, and the drive pulley is driven by the engine body. The suspension wheel provided on the suspension frame rolls on the linear part of the rail, stops when the slide door is closed, stops at the stop recess through the rail's refracting lower part, Is used for an opening and closing device of an airtight door in which the lower lid is pressed against the floor surface side of the peripheral portion.
In order to carry out the object of the present invention, a translation device that translates the chain so as not to be distorted is interposed between the suspension frame and the chain.

  The translation device comprises a hinge having at least two blades of a first blade plate and a second blade plate that are rotatably connected to each other, and the other side portion of one of the first blade plates is attached to the suspension frame. It is attached to the hinge attachment plate that is pivotably attached to the chain attachment plate that is attached to the chain with the other side of the other second blade.

  When attaching the chain, it is desirable to attach an L-shaped bracket to the chain mounting plate, attach a chain coupling tool to the end of the chain, and provide the L-shaped bracket and the chain coupling tool so that their positions can be adjusted.

  In addition to providing an airtight door and electromagnetic shielding, a packing member is provided on the peripheral edge of the three sides excluding the floor side of the opening so that the upper and left vertical slides are pressed against each other when the slide door is closed. , A shield frame having a shield material, a shield frame body provided on the floor surface side of the opening, and a shield contact plate that contacts the shield material when the slide door is closed on the upper and left vertical sides of the slide door And a packing member and a shield finger are provided on the lower side of the sliding door.

  In order to improve the airtight effect, two pressure rollers that are pressed when the sliding door is closed are provided on both sides of the peripheral edge near the floor surface of the opening, and the floor surface facing one pressure roller on the closed end side of the sliding door A pressure roller that contacts the outer surface when the slide door is closed is provided, and a guide roller is attached to the end of the slide door corresponding to the other pressure roller, and this guide roller is on the floor surface side of the front of the fixed door. , And is fitted in a guide groove that is refracted toward the periphery near the closed position of the slide door.

  According to the first aspect of the present invention, a chain is spanned between a drive pulley and a driven pulley provided in the seam, and both ends of the chain are connected to suspension frames on both sides of the slide door, and the drive pulley Is driven by the engine body, the suspension wheel provided on the suspension frame rolls on the linear part of the rail, stops when the slide door is closed, stops at the stop recess through the bent part of the rail, In an airtight door opening and closing device in which a saddle and left and right standing rods are pressed against the peripheral edge side of the opening, and a lower lid is pressed against the floor surface side of the peripheral edge, the chain is disposed between the suspension frame and the chain. Because a translation device that translates so as not to cause distortion is interposed, even if a heavy automatic door driven by a chain moves in an oblique direction when closed, the automatic door body does not cause an oblique distortion in the chain Can move in parallel, It can retain airtightness.

According to the first aspect of the present invention, the translation device has a hinge mounting plate fixed to the first suspension frame on the side opposite to the mounting surface of the first suspension car, and the hinge mounting plate is in a horizontal state. A plurality of hinge rings are fixed, and a hinge ring provided on one side of the first blade is fitted between the hinge rings, and is pivotally connected by a first pin. A chain attachment plate is attached to one end of the chain, a plurality of horizontal hinge rings are fixed to the chain attachment plate, and a hinge for the second vane provided between the hinge rings. A ring is fitted and pivotally connected by a third pin. A hinge ring on one side of the second blade is fitted on the hinge ring on the other side of the first blade, and the second pin is used. Connect and configure the second suspension frame in the same way. Since the, not interfere with the moving when closed or when opening initiation of the sliding door in an oblique direction to transmit the movement direction of the force of the chain on the slide door, moreover, parallel movement apparatus, as simple as the hinge structure It can be realized using.

According to the second aspect of the present invention, the L-shaped bracket is mounted on the chain mounting plate, the chain coupling tool is mounted on the end of the chain, and the L-shaped bracket and the chain coupling tool are provided so that their positions can be adjusted. A simple chain can be adjusted to an appropriate length with a simple operation.

According to invention of Claim 3, while providing the packing member which press-contacts the upper side of a sliding door, and a right-and-left standing ridge at the time of closing of a sliding door in the peripheral part of three directions except the floor surface side of opening, a shielding material is provided. The shield frame body is provided, the shield frame body is provided on the floor surface side of the opening, the shield contact plates that come into contact with the shield material when the slide door is closed are provided on the upper side of the sliding door and the left and right side of the slide door, and the slide Since the packing member and the shield finger are provided on the lower side of the door, it is possible to obtain an airtight door having airtightness and capable of electromagnetic shielding.

According to the fourth aspect of the present invention, two pressure rollers that are brought into pressure contact when the slide door is closed are provided on both sides of the peripheral edge near the floor surface of the opening, and the floor faces one pressure roller on the closed end side of the slide door. A pressure roller that contacts the outer surface when the slide door is closed is provided on the surface, and a guide roller is attached to the end of the slide door corresponding to the other pressure roller. Because it fits into the guide groove that is refracted toward the periphery near the closed position of the sliding door, the sliding door is airtight not only in the upper part near the invisible but also in the lower part near the floor. Electromagnetic shielding can be performed while maintaining the properties.

The present invention is an automatic door that opens and closes by a heavy slide, and is effective for an opening and closing device for a chain-driven hermetic door.
That is, a chain is spanned between a drive pulley and a driven pulley provided in the seam, both ends of the chain are connected to suspension frames on both sides of the slide door, the drive pulley is driven by the engine body, The suspension wheel provided on the suspension frame rolls over the straight part of the rail, and when the slide door is closed, it stops at the stop recess via the rail's refracting lower part, and the upper and left and right vertical supports are opened. In the airtight door opening and closing device in which the lower lid is pressed against the peripheral side of the frame and the floor is pressed against the floor of the peripheral portion, the chain is parallel between the suspension frame and the chain so as not to cause distortion. A moving translation device is interposed.

  The translation device includes a hinge having at least two blades of a rectangular first blade plate and a second blade plate that are rotatably connected to each other, and suspends the other side of one of the first blade plates. A hinge attachment plate attached to the frame is rotatably attached, and the other side of the other second blade is attached to a chain attachment plate attached to the chain.

  When the chain is attached, the L-shaped bracket attached to the chain attachment plate and the chain connector attached to the end of the chain are connected so that the position can be adjusted.

  In order to make the door airtight and electromagnetically shielded, the upper edge of the sliding door and the left and right vertical ridges are pressed against the three peripheral edges except the floor surface of the opening when the sliding door is closed. In addition to providing a packing member, a shield frame having a shield material is provided, a shield frame is provided on the floor surface side of the opening, and a shield material is provided on the upper and left vertical sides of the slide door when the slide door is closed. A contact plate for shielding is provided, and a packing member and a shield finger are provided on the lower side of the sliding door.

  In order to improve the airtight effect, two pressure rollers that are pressed when the sliding door is closed are provided on both sides of the peripheral edge near the floor surface of the opening, and the floor surface facing one pressure roller on the closed end side of the sliding door A pressure roller is provided that contacts the outer surface when the slide door is closed and clamps the door, and a guide roller is attached to the end of the slide door corresponding to the other pressure roller. It is a surface side, and it is set as the structure fitted to the guide groove provided by refracting to the peripheral part side near the closed position of a slide door.

An embodiment of an airtight door opening / closing device having airtightness and electromagnetic shielding according to the present invention will be described with reference to FIGS.
FIG. 5A is a front view of the upper portion of the sliding door and the magenta 13 provided on the ceiling. The engine main body 18 and the engine main body 18 are driven at one end of the mute 13. The driven pulley 19 is provided, the driven pulley 20 is provided at the other end, and a chain 21 is stretched between the driven pulley 19 and the driven pulley 20.
In addition, as shown in FIG. 5B, two first rails 14 a and a second rail 14 b are attached to the seamless 13. Among these, on one first rail 14a, a first suspension wheel 23a attached to one side (right side in the figure) of the slide door 10 by a first suspension frame 22a is mounted so as to be freely rotatable, and the other second rail 14a. On the rail 14b, a second suspension wheel 23b attached by a second suspension frame 22b is mounted on the other side (left side in the drawing) of the slide door 10 so as to roll freely.
The end of the chain 21 turned back by the driven pulley 20 is connected to the first suspension wheel 23a by a parallel movement device 38, and the second suspension wheel 23b is connected to the end of the chain 21 turned back by the drive pulley 19. The ends are connected by a translation device 38. The detailed configuration of the translation device 38 will be described later.

An opening 12 through which a person or an object enters and exits is formed below the mesh 13, and a heavy sliding door 10 that opens and closes the opening 12 is provided along the fixed door 11 so as to be freely opened and closed.
In order to obtain appropriate elasticity, packing members 31 in which chloroprene rubber or the like is formed in hollow are arranged in two rows on the periphery 12 of the wall surface frame portion on the left, right, and right sides of the opening 12. A shield frame 34 is disposed outside the packing member 31. Of these three shield frame bodies 34, the upper and right shield frame bodies 34 are substantially flush with the wall surface frame peripheral portion 30, and the left shield frame 34 extends from the wall surface frame peripheral portion 30. The sliding door 10 is provided so as to protrude by substantially the same thickness.

  The first rail 14a and the second rail 14b have the same shape, and as shown in FIG. 5 (c) seen from a plan view and (d) seen from the front, a straight portion 15 made of a metal square bar, and a closed position It is formed by welding a nearby refracting portion 16 and a stop recess 17 at a stop position. Among these, the linear part 15 moves the suspension wheel 23 linearly, the refraction descending part 16 moves the suspension wheel 23 so as to descend while approaching the peripheral edge part 30 side, and the stop recess 17 includes the suspension wheel 23. Stop.

As shown in FIG. 5B and FIG. 2, the first rail 14a and the second rail 14b are provided for the left and right distances and the front and rear distances between the first suspension wheel 23a and the second suspension wheel 23b. The position is shifted and attached on the angle member 36 in the invisible eye 13.
A first suspension frame 22a and a second suspension frame 22b are provided on the left and right surfaces of the upper collar 25 of the slide door 10, respectively, and a first suspension wheel attached to the first suspension frame 22a and the second suspension frame 22b. 23a and a second suspension wheel 23b are mounted on the first rail 14a and the second rail 14b so as to roll freely. Further, the anti-dancing roller 24 is provided at a position where the angle member 36 is sandwiched from below by the first suspension frame 22a and the second suspension frame 22b.

  The blind pulley 13 is provided with the driving pulley 19 and the driven pulley 20 positioned slightly in front of the suspension frame 22 by a pulley support 37, and the driving pulley 19 and the driven pulley 20 are connected to one end of the chain 21. Each is over. Both ends of the drive pulley 19 and the driven pulley 20 on the lower side of the chain 21 are attached to the first suspension frame 22a and the second suspension frame 22b by the parallel movement device 38, respectively. The connection with the chain 21 by the translation device 38 is the same in the structure of the drive pulley 19 side and the driven pulley 20 side except that the direction is different by 180 degrees. Therefore, the drive pulley 19 side will be described with reference to FIG.

A hinge attachment plate 39 with two horizontal hinge rings is fixed to the first suspension frame 22a on the opposite side of the attachment surface of the first suspension wheel 23a, and the hinge ring of the hinge attachment plate 39 has a quadrangular shape. A ring for hinges provided on one side of the first vane plate 40a is fitted, and the first pin 52a is rotatably connected. Similarly, the hinge ring on one side of the second vane plate 40b is fitted to the hinge ring on the other side of the first vane plate 40a and connected by the second pin 52b. Two hinge rings mounted horizontally on the lower surface of the chain mounting plate 41 are fitted with hinge rings provided on the other side of the second vane plate 40b, and connected by a third pin 52c.
An L-shaped metal fitting 55 is attached to one end of the upper surface of the chain attachment plate 41, a chain connector 56 is placed on the L-shaped metal fitting 55, and the chain 21 is connected to the chain connector 56. 58, the fixing screw 59 is loosened so that the position of the chain coupler 56 can be adjusted by the adjusting screw 57, and is fixed by the fixing screw 59 after adjustment.

  As shown in FIG. 2, among the three shield frame bodies 34, a shield material 33 is attached upward to the upper shield frame body 34, and a shield contact is placed inside the upper collar 25 so as to correspond to the shield material 33. A plate 27 is attached. Further, as shown in FIG. 1, a shield material 33 is attached outward to the left shield frame 34, and a shield contact plate 27 is attached to the inside of the upper collar 25 so as to correspond to the shield material 33. Further, the shield member 33 is attached inward to the right shield frame 43, and the vertical shaft of the slide door 10 corresponding to the shield member 33 also serves as the shield contact plate 27. The three-side shield frame 34 is attached in a conductive state to the joint 13 by means of a conductive fitting 35.

As shown in FIG. 1, concave portions 47 are respectively formed at positions on both sides of the peripheral edge portion 30 near the floor surface 42, and pressure rollers 46 urged by springs 48 are respectively provided in the concave portions 47. Further, a pressure roller 44 is attached so as to be in contact with the outer surface of the slide door 10 so as to face the pressure roller 46 on the right side in FIG.
A guide roller 50 is attached to the end of the slide door 10 corresponding to the pressure roller 46 on the left side in FIG. 1 by a roller attachment 51, and the guide roller 50 is a guide provided on the floor 42 on the front surface of the fixed door 11. The guide groove 49 is bent toward the peripheral edge 30 near the closed position of the slide door 10.
A skirt-like packing member 28 is attached to both the front and back surfaces of the lower collar 26 of the slide door 10, and shield fingers 32 are provided on the lower surface of the lower collar 26, and the floor faces the shield fingers 32. A shield frame 29 is provided on the surface 42.
An edge switch 60 is provided at the closed end of the slide door 10.

The operation of the airtight door opening and closing device configured as described above will be described.
As shown by the chain line in FIG. 5A, in the state where the slide door 10 is opened, the first suspension wheel 23a and the second suspension wheel 23b are both linear portions 15 of the first rail 14a and the second rail 14b. The upper arm 25 of the slide door 10 and the left and right vertical shafts have a gap between the three peripheral edges 30 and are not in contact with the packing member 31. The shield contact plate 27 on the upper side 25 and the shield contact plate 27 on the vertical side are not in contact with the shield member 33 of the shield frame 34. The packing member 28 and the shield finger 32 of the lower collar 26 are not in contact with the shield frame 29.
At this time, since the suspension wheel 23 is placed on the straight portion 15 of the rail 14 and is at a high position, the angle between the first blade plate 40a and the second blade plate 40b of the parallel movement device 38 is closed in a direction that decreases. However, the position of the chain mounting plate 41 does not change, and no force that distorts the chain 21 is generated.

When the drive pulley 19 rotates to the right in FIG. 5A by driving the engine body 18 from the state in which the slide door 10 is opened, the upper side of the chain 21 is pulled rightward and slides through the driven pulley 20. The door 10 starts moving leftward. When the first suspension wheel 23a and the second suspension wheel 23b of the slide door 10 roll on the straight portion 15 of the rail 14 at a constant speed and reach the refractive descending portion 16 from the straight portion 15, the slide door 10 is Then, the refracting descending portion 16 starts to descend and approaches the peripheral portion 30.
At this time, the suspension wheel 23 is transferred to the refractive descending portion 16 of the rail 14 and gradually moves to a lower position in an oblique direction, but the angle formed by the first blade plate 40a and the second blade plate 40b of the translation device 38 is large. The position of the chain mounting plate 41 does not change, and no force that distorts the chain 21 is generated.

Immediately before the suspension wheel 23 completely moves from the refracting portion 16 to the stop recess 17, the tip portion of the lower rod 26 is pressed against the spring 48 between the pressure roller 44 and the pressure roller 46, and The guide roller 50 at the base end portion is guided by the guide groove 49 and approaches the peripheral edge portion 30, and the inner surface of the slide door 10 is in pressure contact with the pressure contact roller 46.
When the suspension wheel 23 is completely moved from the refracting portion 16 to the stop recess 17, as shown in FIG. 3, the shield contact plate 27 on the upper rod 25 side and the shield contact plate 27 on the vertical rod side are shield frame 34. , The packing member 28 of the lower rod 26 and the shield finger 32 are also pressed against the shield frame 29, and the closed end face of the sliding door 10 is also pressed against the shield material 33 of the shield frame 43.
At this time, as shown in FIG. 3, the suspension wheel 23 is transferred to the refractive descending portion 16 of the rail 14 and moves to the lowest oblique position, but the first blade plate 40 a and the second blade plate of the translation device 38. The position of the chain mounting plate 41 does not change only by opening it in the direction in which the angle formed with 40b increases, and no force that distorts the chain 21 is generated.
The closed slide door 10 is grounded and shielded to the seamless 13 through the shield member 33, the shield frame 34, and the like.

  When the sliding door 10 is opened, the engine body 18 rotates in the reverse direction, and the suspension wheel 23 rises from the stop concave portion 17 to the refractive descending portion 16 in an oblique direction, and rolls the straight portion 15 to completely open. Even at this time, the position of the chain mounting plate 41 does not change and the chain 21 is distorted only by closing in the direction in which the angle between the first blade plate 40a and the second blade plate 40b of the parallel movement device 38 is reduced. Does not occur.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of an airtight door opening and closing device according to the present invention, and is a cross-sectional plan view immediately before closing a sliding door (chain line) and when closing (solid line). 1 shows an embodiment of an airtight door opening and closing device according to the present invention, and is a vertical side view when a sliding door is opened. 1 shows an embodiment of an airtight door opening and closing device according to the present invention, and is a longitudinal side view when a sliding door is closed. FIG. It is a perspective view which shows one Example of the translation apparatus in the opening / closing apparatus of the airtight door by this invention. (A) shows one Example of the opening-closing apparatus of the airtight door by this invention, The front view of a part of a blind and a sliding door, (b) is a top view of a rail, (c) is a rail (D) is an enlarged front view of a rail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Sliding door, 11 ... Fixed door, 12 ... Opening, 13 ... Seamless, 14 ... Rail, 15 ... Straight part, 16 ... Refraction descending part, 17 ... Stop recessed part, 18 ... Engine main body, 19 ... Drive pulley, 20 ... driven pulley, 21 ... chain, 22 ... suspension frame, 23 ... suspension wheel, 24 ... anti-dancing roller, 25 ... upper collar, 26 ... lower collar, 27 ... shield contact plate, 28 ... packing member, 29 ... shield frame , 30 ... peripheral edge, 31 ... packing member, 32 ... shield finger, 33 ... shield material, 34 ... shield frame, 35 ... conductive mounting bracket, 36 ... angle material, 37 ... pulley support, 38 ... parallel movement Device: 39 ... Hinge mounting plate, 40 ... Blade plate, 41 ... Chain mounting plate, 42 ... Floor surface, 44 ... Pressure contact roller, 45 ... Cover, 46 ... Pressure contact roller, 47 ... Recess, 48 ... Spring, 49 ... Guy Groove, 50 ... guide roller, 51 ... roller fixture, 52 ... pin, 55 ... L-shaped bracket 56 ... Chen connector, 57 ... adjustment screw, 58 ... elongated hole, 59 ... fixing screw, 60 ... edge switch.

Claims (4)

A chain is stretched between a drive pulley and a driven pulley provided in the interior, both ends of the chain are connected to first and second suspension frames on both sides of the slide door, and the drive pulley is connected to the engine body. Drives and rolls the suspension wheel provided on the suspension frame on the linear part of the rail, stops at the stop recess through the rail refraction descending part when the slide door is closed, In the airtight door opening and closing device in which the vertical rod is pressed against the peripheral edge side of the opening and the lower rod is pressed against the floor surface side of the peripheral edge, the second suspension is provided between the first suspension frame and the chain. Between the frame and the chain, a translation device that translates so as not to give distortion to the chain is interposed, and these translation devices are located on the opposite side of the first suspension frame from the mounting surface of the first suspension vehicle. Secure the hinge mounting plate, this hinge A plurality of horizontal hinge rings are fixed to the mounting plate, and a hinge ring provided on one side of the first blade is fitted between the hinge rings. A chain attachment plate is attached to one end of the chain, and a plurality of horizontal hinge rings are fixed to the chain attachment plate, and a second ring is interposed between the hinge rings. A hinge ring provided on the vane is fitted, and is pivotally connected by a third pin. The hinge ring on the other side of the first vane is connected to the hinge ring on one side of the second vane. An opening and closing device for an airtight door, wherein a ring is fitted and connected by a second pin, and the second suspension frame is similarly configured . Attach the L brackets to Cheng mounting plate, mounting the chain connector to the end of the chain, the airtight door according to claim 1, wherein said L-shaped bracket and Chen provided so a connector adjustably Switchgear.   At the peripheral edge of the three sides except the floor side of the opening, a packing member that presses the upper side of the sliding door and the left and right vertical bars when the sliding door is closed is provided, and a shield frame having a shielding material is provided, and the floor of the opening A shield frame body is provided on the surface side, a shield contact plate that is in contact with the shield material when the slide door is closed is provided on the upper and left vertical sides of the slide door, and a packing member is provided on the lower side of the slide door. The airtight door opening and closing device according to claim 1, further comprising a shield finger.   Two pressure rollers are provided on both sides of the peripheral edge near the floor of the opening and are pressed against each other when the sliding door is closed, and on the outer surface when the sliding door is closed. A contact roller is provided, and a guide roller is attached to the end of the sliding door corresponding to the other pressure roller. This guide roller is on the floor side of the front surface of the fixed door and close to the closed position of the sliding door. The airtight door opening and closing device according to claim 1, wherein the opening and closing device is fitted in a guide groove that is refracted toward the peripheral edge side.

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