JP3430357B2 - Door openers - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a door opening / closing device built at an entrance of a building or the like. 2. Description of the Related Art Today, a door is connected to a trolley which is guided and moved by a guide rail laid on a ceiling, and the door is pulled down with the movement of the trolley, and the door is stored substantially horizontally on the ceiling. A device capable of opening and closing in a storage position is known, for example, in Japanese Utility Model Laid-Open No. 5-7893. In this case, the guide rail is formed of a substantially L-shaped member, and the guide rail is configured to be opened and closed by sliding a groove formed in the trolley in the lower piece of the guide rail. [0003] However, since the trolley slides on the guide rails in the above-mentioned conventional apparatus, the sliding resistance is inevitably increased, resulting in lack of smoothness and unpleasant sliding. There is a problem that sound is generated. Further, in this case, since the trolley is disposed below the guide rail, the vertical height must be sacrificed, and the opening height of the entrance is reduced accordingly. Furthermore, if the trolley is opened and closed by motor-driven movement of a cable such as a chain drawn endlessly between the front and rear ends of the guide rail, it is necessary to secure a space for running the chain. In addition, it is necessary to secure a space for disposing the chain guide so that the upper half of the routed chain does not hang down and interfere with the trolley or the like. There are problems such as sacrifice, and there is a problem to be solved by the present invention. SUMMARY OF THE INVENTION [0004] The present invention has been made in view of the above-mentioned circumstances, and has been created for the purpose of solving these problems, and is laid on the ceiling side in the front-rear direction. the trolley doors are connected to the guide rail is guided movement, to the trolley, the drive and the upper to the driven sprocket
Connected to the lower chain part of the drive chain suspended endlessly
Of the drive chain by removably connecting the connecting members
The guide rail is supported in such a manner that the door can be transformed into a closed position in which the door is pulled down in an upright position and a storage position in which the door is pulled up horizontally by moving the trolley based on the guide rail. Side and both edges of the supporting side
From both sides that are suspended from
The aspirations of the lanes are bent inward to face each other.
Between the opposing sides of both rail sides
A gap is formed in a rail groove that opens downward, and the trolleys project upward from the lower side and the lower side to each other.
A trolley with a substantially U-shaped cross section consisting of a pair of opposite sides
-The upper part is composed of the main body, and the upper ends of both sides of the trolley body
The part has a pair of running rollers rolling on the rail side.
The upper end of both sides of the trolley main body is supported outward.
Part into the rail groove from the gap between both rail sides
The rail side support side, trolley body bottom side and trolley
-In the space defined by both sides of the body,
The chain and the chain holder that supports the upper drive chain are provided.
A door opening and closing device characterized by the following. As a result, the trolley travels by the rollers, and can be made smooth and quiet. In addition, the trolley can enter the space between both sides of the trolley body guide rail to secure a large opening height. Next, an embodiment of the present invention will be described with reference to FIG.
Explanation will be made based on the drawings of FIG. In the drawing, 1
Is a door body to be built in the opening. The door body 1 is formed in a series by connecting a plurality of panels 2 rotatably by a connecting member such as a hinge. Guide rollers 2a protrude from both sides. The door body 1 has a substantially L-shaped guide rail in which the guide roller 2a is composed of a vertical rail portion 3a erected on both sides of the opening and a storage rail portion 3b arranged along the ceiling surface. 3, the door body 1 is set to be transformed into a closed posture in which the door body 1 becomes upright and closes the opening, and a storage posture in which the door body 1 becomes horizontal and opens the opening. ing. Reference numeral 4 denotes a trolley rail (a guide rail according to the present invention) which is located substantially at the center of the opening in the left-right direction and is arranged along the ceiling surface. The trolley rail 4 has a support side 4a facing the ceiling. And a pair of side edges 4b hanging down from both side edges thereof, and the rail edges 4c bent inward so as to be opposed to each other at the front end edges of the both side edges 4b.
Are formed. A rail groove 4d is formed between the pair of left and right rail sides 4c and the upper support side 4a such that the gap between the opposing rail sides 4 is open downward. On the other hand, a switchgear bracket 5 is provided at a rear end of the trolley rail 4 on the indoor side, and an electric motor 6 is fixed here. The driving force of the electric motor 6 is linked via a torque limiter 6a to a driving sprocket 6b rotatably supported by the bracket 5 in a state substantially facing the rail groove 4d. An outdoor bracket 7 is provided at an outdoor end of the trolley rail 4, and a driven sprocket 8 is rotatably supported on the outdoor bracket 7 so as to face the driving sprocket 6b. An endless drive chain 9, which will be described later, is suspended between 6 b and 8, and is set so that the drive chain 9 is forcibly reciprocated as the electric motor 6 is driven. The drive chain 9 includes two sprockets 6
Both ends are connected to each other by a connecting member 10 at a lower side where the connecting members 10 and 10 are connected to each other by a connecting member 10 to form an endless shape. Each end of the drive chain 9 is connected to both ends thereof, and a locking hole 10a is formed in the middle part in the rail length direction so as to penetrate vertically. . Here, the pin shaft 7a for bearing the driven sprocket 8 is fixed to a long hole 7b formed in the outdoor bracket 7 and extending in the rail length direction so as to be movable and adjustable. The movement of the driven sprocket 8 is adjusted by adjusting the movement of the driven sprocket 8 in the elongated hole 7b, so that the tension of the drive chain 9 can be adjusted. Furthermore, the upper drive chain 9 among the drive chains 9 routed between the two sprockets 6b, 8 is:
The trolley rail 4 is routed in a state where it is supported by a chain holder 9a provided with an appropriate gap on a support side 4a serving as a groove bottom of the trolley rail 4, whereby the upper drive chain 9
Consideration is given to avoid such problems as hanging. [0010] Now, reference numeral 11 denotes a trolley to which the connecting member 10 is detachably connected, and a trolley body 12 constituting an upper portion of the trolley 11 has a substantially U-shaped cross section.
A pair of both sides 12b projecting upward from the lower side 12a face each other in the rail length direction. Furthermore, both sides 12b
A pair of running rollers 13 are journaled outward at the upper end of the rail, and the running rollers 13 are set so as to roll on the pair of rail sides 4c. Is set to be narrower than the distance between the rail sides 4c facing each other, and the trolley 11 runs on the trolley rail 4 in a positional relationship in which the upper end of the trolley body 12 enters the rail groove 4d. Is set to A chain guide 14 is integrally provided on the upper side surface of the lower side 12a of the trolley body, and the connecting member 10 is set so as to be housed so as to be movable in and out in the rail length direction. Is provided with a through-hole 12c facing the locking hole 10a of the connection member 10 to be stored. On the other hand, a trolley joint 15 is integrally provided on the lower surface of the lower side 12a of the trolley body,
A pair of leg sides 15a hanging downward from the trolley joint 15 face each other in the rail length direction. One end of the leg 15a is connected to the door 1
The other end of a connecting arm 2c, which is rotatably provided at a substantially central portion in the left-right direction of the uppermost panel 2b, is rotatably supported, whereby the trolley 11 and the door body 1 are connected. I have. A stopper member 16 is disposed between the opposing leg sides 15a and the trolley body through hole 12c so as to be vertically movable.
The leg side 1 is inserted into a long hole 16a that is long in the vertical direction.
It is incorporated in the trolley joint 15 in a state where a pin 15b supported between 5a is inserted. An ammunition machine 17 is interposed between the stopper member 16 and the trolley joint leg side 15a.
In the natural state, receiving the urging force of the bullet 17
The pin 15b is set to contact the lower edge of the stopper member 16a.
b is the locking hole 1 of the connecting member 10 in the chain guide 14.
The trolley 11 and the connecting member 10 are set so as to be maintained in a locking posture in which the trolley 11 and the connecting member 10 are integrated with each other by being fitted into Oa. Then, the trolley 11 is forcibly moved in accordance with the reciprocation of the drive chain 9 driven by the electric motor 6, whereby the door body 1 is set to perform the above-described opening and closing operation. ing. On the other hand, at the lower end of the stopper member 16, the distal end of an operating lever 18 provided with an operating cord 18a at its base end is provided so as to be able to move up and down via a pin 16c. When the stopper member 16 is in the natural state, the lever side 18b is connected to the trolley joint leg 15
The setting is such that it is maintained in a lying posture in contact with the lower edge of a. On the other hand, when the operation string 18a is pulled, the operation lever 18 rotates and the front edge 18c is moved to the leg side 15c.
At this time, the operating position of the operating lever 18 is such that the length B to the leading edge 18c is longer than the length A to the side 18b (A <B). ing. Then, as the operation lever 18 is changed to the upright posture, the stopper member 16 is pulled downward against the ammunition 17, and in this state, the stopper member 16 is
The pin 15b is locked on the upper edge of the connecting member 16a, and the locking portion 16b is in a release position in which the locking portion 16b comes out of the connection member locking hole 10a. Has become. In addition, the front edge 1 of the operation lever 18
A corner portion between the side 8c and the side 18b is formed in a chamfered shape, and is configured to smoothly perform a tilting / reforming operation in a state against the ammunition 17. The trolley 11 is driven in the event of an emergency such as a power failure by setting the stopper member 16 to the release position.
To open and close the door body 1 manually, and then to the automatic opening and closing state by the electric motor 6 from the manual operation state. In this case, both ends in the rail length direction of the connecting member 10 The connecting member 1 of the drive chain 9 is formed on a tapered guide portion 10b which is cut out in an inclined manner, and when the drive motor 6 is driven to move the drive chain 9.
0 is inserted into the chain guide 14 of the trolley 11,
The operation lever 18 is set in advance so as to be automatically locked to the stopper member 16 in the locking posture projecting upward by setting the operation lever 18 in the lying posture. Here, reference numerals 14a and 12d denote inclined guide sides, respectively. Reference numeral 19 denotes a winding device for assisting the opening and closing operation of the door body 1 by the trolley 11. The winding device 19 is mounted on a winding shaft 19a and constantly urged in a winding direction. The balance between the urging force of the winding machine 19b and the weight of the door body 1 balances the wire 20 connected to the lowermost panel body of the door body 1 with the winding drum 21 provided at both ends of the winding shaft 19a. It is configured to take up and to unwind, so as to reduce the load on the electric motor 6. In the embodiment of the present invention configured as described above, the trolley 11 connected to the drive chain 9 is mounted on the door body 1 based on the drive of the electric motor 6 by the ON operation of a switch (not shown). 4, the forcible reciprocating movement causes the opening and closing of the opening by moving between the closed position on the vertical rail 3a and the open position on the storage rail 3b. In this case, the trolley 11 has a traveling roller 13 provided on both sides 12b of the trolley body 12 and a trolley rail 4
Forcibly reciprocating movement is performed by rolling on the rail side 4c, and as a result, the sliding resistance can be reduced, the movement of the trolley 11 becomes smooth, and the movement noise is also quiet. be able to. Moreover, in this embodiment, the trolley body 12 to which the traveling roller 13 is attached has a substantially U-shaped cross section, and the traveling roller 1 protrudes outward from both side edges 12b.
3 and the chain guide 14 is mounted on the lower side 12a, so that the upper part of the trolley body 12 can be inserted into the rail groove 4d from the gap between the leading edges of the rail sides 4c, and the trolley is accordingly reduced. The vertical dimension by the rail 4 and the trolley 11 will be reduced, so that the members can be made more compact,
The disadvantage that the opening height becomes unnecessarily low can be avoided. In addition, the drive chain 9, which is routed vertically, is provided in the space between the supporting side 4a on the trolley rail 4 side and the lower side 12a of the trolley main body. Since only the chain 9 is provided, the space only needs to be provided so that the upper and lower drive chains 9 do not interfere with each other, and the conventional trolley is slid on the guide rail. The trolley itself does not become longer in the vertical direction, unlike a device in which the traveling member and the drive chain are vertically arranged in a stacked manner, so that further downsizing can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a rear view of an opening / closing device. FIG. 2 is a plan view of the switching device. FIG. 3 is a side view of the opening / closing device. FIG. 4 is a perspective view of a main part. FIG. 5 is a side view of the trolley. FIG. 6 is a front view of the trolley. FIG. 7 is a bottom view of the trolley. FIG. 8 is a front view of the trolley showing a traveling state of the guide rail. FIG. 9 is an explanatory perspective view showing a connection state of a driving chain. FIG. 10 is a side view of a main part showing a manual operation state. [Description of Signs] 3 guide rail 4 trolley rail 6 electric motor 9 drive chain 10 connecting member 11 trolley 12 trolley body 13 running roller 14 chain guide 15 trolley joint 16 stopper member 17 elastic machine 18 operating lever 19 winding device

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E06B 9/00 E05D 15/00 E05F 15/00

Claims (1)

(57) [Claims 1] is guided moving the trolley door is coupled to the laid guide rails towards the front and rear direction on the ceiling side,
The trolley, the drive and driven sprockets are endless
Connected to the lower chain of the drive chain
The connecting members are detachably connected to each other based on the movement of the drive chain.
In Ku trolley door consisting configured to be Hensugata in a closed position which pulled down the door upright shape and the retracted position which is raised to a horizontal state by the movement of the guide rails, the support side facing the ceiling And from both edges of the support side
It consists of both sides that hang down.
Are the sides of the rails that are bent inward to face each other
Is formed, and the gap between the opposing sides of both rail sides is
The trolley is formed in a rail groove opened downward, and the trolley projects upward from the lower side and the lower side to face each other.
Trolley book with a substantially U-shaped cross section consisting of a pair of side edges
The upper part is composed of the body, and the upper part of both sides of the trolley body
Means that a pair of running rollers rolling on the rail side
And the upper end of both sides of the trolley body
Enter the rail groove from the gap between both rail sides
And the rail-side support edge, trolley body lower edge and trolley
The upper and lower drive chains are located in the space defined by both sides of the main unit.
And a chain holder that supports the upper drive chain.
Door opening and closing device characterized by the above-mentioned .