JP2018066190A - Opening/closing apparatus and installation structure for opening/closing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately adjust an interval between an engagement element and an engagement element guide member.SOLUTION: An opening/closing apparatus comprises: an opening/closing body 10 for performing closing action so as to partition a space; a plurality of engagement elements 12 fastened to the opening/closing body 10's end part in the width direction throughout the opening/closing direction; a guide rail 20 for guiding the opening/closing body 10's end part side including the engagement elements 12, in the opening/closing direction; an opening/closing drive shaft 32 for performing drive rotation on the guide rail 20's opening direction side with its outer periphery part engaged with the engagement elements 12; an engagement element guide member 33 supported on an immobile part so as to access an engagement element 12 on the outer periphery part of the opening/closing drive shaft 32 from the centrifugal direction side; and a position adjustment mechanism for adjusting an interval between the engagement element guide member 33 and the opening/closing drive shaft 32.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an opening / closing device for partitioning or opening a space in an opening or inside of a housing such as a house, building, warehouse, factory, underground mall, tunnel, or vehicle loading platform, and an installation structure of the opening / closing device.

Conventionally, this type of invention includes a seat curtain (11) that performs a closing operation so as to partition a space, an engaging element (17) that is fixed to an end in the width direction of the seat curtain (11), and an engaging element ( 17) a vertical rail member (10a) that surrounds the widthwise end portion of the seat curtain (11) and guides it in the opening and closing direction, and a seat drive gear (12) that rotates above the vertical rail (10a). And a guide block (13) provided in a curved shape so as to be close to the engaging member (17) engaged with the seat driving gear (12), and the engaging member (17) on the outer periphery of the seat driving gear (12). There is a composite shutter in which the sheet curtain (11) is extended and retracted by engaging the. In addition, the numerical value in the said parenthesis is the code | symbol used for patent document 1. FIG.
According to this prior art, even when the seat drive gear (12) is rotated at a high speed and the seat curtain (11) is opened and closed at a high speed, the engaging element (17) is detached from the seat drive gear (12). It can be prevented by the guide block (13).

JP 2008-169588 A

  However, according to the above prior art, when the engagement element (17) is worn due to long-term use or the like, and the gap between the engagement element (17) and the guide block (13) becomes large, for example, the engagement element (17) is driven by the seat. There is a risk that the gear (12) may easily fall off.

In view of such problems, the present invention has the following configuration.
An opening / closing body that performs a closing operation so as to partition the space, a plurality of engagement elements fixed to the opening / closing direction of the opening / closing body in the opening / closing direction, and an end portion of the opening / closing body including the engagement element in the width direction A guide rail that guides the side in the opening and closing direction, an opening and closing drive shaft that rotates by engaging an outer peripheral portion with the engagement element on the opening direction side of the guide rail, and the engagement element on the outer peripheral portion of the opening and closing drive shaft An opening / closing apparatus comprising: an engaging member guide member supported by a non-moving portion so as to approach from the centrifugal direction side; and a position adjusting mechanism for adjusting a distance between the engaging member guide member and the opening / closing drive shaft. .

  Since the present invention is configured as described above, the interval between the engagement element and the engagement element guide member can be adjusted appropriately.

It is a front view which shows an example of the switchgear concerning this invention. It is a longitudinal cross-sectional view of the switchgear, and shows the fully open state of the switchgear. It is a perspective view which shows an internal structure about an example of a storage part. In addition, the contact piece at the rear upper end is omitted. It is a principal part enlarged view which shows an example of an opening-closing body. It is a longitudinal cross-sectional view of the installation structure of the switchgear concerning this invention, and shows the state which mounted | wore the housing | casing part wall surface. It is a principal part longitudinal cross-sectional view of the installation structure of the switchgear concerning this invention, (a) has shown the state which mounted | wore the casing wall surface, (b) shows the state which removed the switchgear from the chassis wall surface. It is a perspective view which shows an engaging member guide member and its surrounding structure. It is a principal part longitudinal cross-sectional view which shows an example of a position adjustment mechanism, (a) shows an initial state, (b) shows the state which replaced | exchanged the screwing member and shifted the engaging member guide member below. It is a principal part longitudinal cross-sectional view which shows the other examples of a position adjustment mechanism, (a) shows an initial state, (b) shows the state which removed the spacer and shifted the engaging member guide member downward. It is a principal part longitudinal cross-sectional view which shows the other examples of a position adjustment mechanism, (a) shows an initial state, (b) shows the state which shifted the engaging member guide member below by the change of the screw hole. It is a perspective view which shows the support structure by the side of the edge part of a winding shaft. It is a longitudinal cross-sectional view which shows the support structure of the edge part side of a winding shaft.

In the present embodiment, the following features are disclosed.
The first feature is that the opening / closing body that performs a closing operation so as to partition a space, a plurality of engaging elements fixed to the opening / closing direction of the opening / closing direction of the opening / closing body, and the opening / closing body including the engaging elements A guide rail that guides the widthwise end of the guide rail in the opening and closing direction, an opening and closing drive shaft that rotates by engaging an outer peripheral portion with the engagement element on the opening direction side of the guide rail, and an outer peripheral portion of the opening and closing drive shaft An engagement member guide member supported by a non-moving part so as to be close to the engagement member from the centrifugal direction side, and a position adjustment mechanism for adjusting a distance between the engagement member guide member and the opening / closing drive shaft ( 1 to 3).
Here, the “position adjusting mechanism” includes an aspect in which the engaging member guide member is moved by changing a screwing member, an aspect in which the engaging member guide member is moved by attaching and detaching a spacer, A mode in which the engaging member guide member is moved by selecting a fastening hole, a mode in which the engaging member guide member is slidably included, and the like are included.
The “position adjusting mechanism” is preferably configured to adjust the distance by moving the engagement member guide member, but may be configured to adjust the distance by moving the opening / closing drive shaft. is there.
According to the said structure, the clearance gap between an engaging element guide member and the engaging element meshed | engaged with the opening-and-closing drive shaft can be adjusted with a position adjustment mechanism.

The second feature is that the engaging guide member is provided with a through hole, the immovable portion is provided with a screw hole, and the position adjusting mechanism includes a first screwing member and the first screwing member. A second screwing member exchangeable with the second screwing member so that the second screwing member can be selectively mounted. The first screwing member includes a male screw part screwed into the stationary part, and a male screw part. A shaft portion that contacts the inner peripheral surface of the through-hole on the rear side, and the second screwing member includes a male screw portion screwed into the immovable portion and a rear side of the male screw portion. And a shaft portion having a smaller diameter than the shaft portion of the first screwing member (see FIG. 8).
According to this configuration, the engagement member guide member is moved to replace the engagement member guide member with the opening and closing of the engagement member by exchanging the pre-mounted screw engagement member with another screw member having a small-diameter shaft portion. The distance from the drive shaft can be adjusted.

  A third feature is an opening / closing device in which a through hole is provided in the engaging member guide member, and a screwing member inserted into the through hole is screwed into the immovable portion, and the position adjusting mechanism includes: A cylindrical spacer is detachably provided between the inner peripheral surface of the through hole and the outer peripheral surface of the screwing member (see FIG. 9).

  A fourth feature is an opening / closing device in which a through hole is provided in the engaging member guide member, and a screwing member inserted through the through hole is screwed into a screw hole provided in the immovable portion, The position adjusting mechanism is provided with a plurality of screw holes so that the distances in the centrifugal direction with respect to the opening / closing drive shaft are different, and the plurality of screw holes are selectively used (see FIG. 10).

  As a fifth feature, a winding shaft for winding and unwinding the opening / closing body is provided, and the winding shaft is fixed to a stationary part so as not to be rotatable by a pivot bracket and a fixing tool. A winding body rotatably supported on an outer periphery of the fixed shaft, and the pivot bracket is in contact with a lower piece portion receiving the end portion side of the fixed shaft from below and the same end portion side from above. Alternatively, the fastening device integrally includes a bolt-like member inserted into the end portion side of the fixed shaft, the lower piece portion, and the upper piece portion, and the bolt-like member. And a nut-like member that is screwed and tightened to the distal end side (see FIGS. 11 to 12).

  As a sixth feature, the shaft support bracket has a front side of the lower piece and the upper piece so that an end side of the fixed shaft is pulled out from between the lower piece and the upper piece. The lower piece is formed so as to protrude to the near side from the upper piece, and is opened to the near side on the lower piece. The protruding portion is provided with a small protrusion that can pass through the fixed shaft (see FIGS. 11 to 12).

  According to a seventh feature, an airtight member that secures internal and external airtightness of the opening / closing body when fully closed is provided on the opening direction side of the opening / closing body, and the airtight member is continuous in the lateral width direction of the opening / closing body. The opening / closing body is sandwiched between the opening / closing drive shaft (see FIGS. 2 and 5).

  The eighth feature is that the opening / closing device is attached to a housing wall surface having a base material and a finishing material fixed to the surface of the base material, and opens and closes an opening formed in the housing wall surface. In the installation structure of the opening / closing device, a storage case for storing or feeding out the opening / closing body on the opening direction side is provided, and an end of the housing wall side at the upper end of the storage case has an opening on the side of the rudder wall surface. A contact piece having a U-shaped cross section is provided, and the housing wall surface side of the contact piece is in contact with the base material, and the upper end portion of the contact piece is in contact with or close to the lower end of the finishing material ( (See FIG. 6).

  According to a ninth feature, in the installation structure of an opening / closing device in which the opening / closing device is mounted on a housing wall surface and opens and closes an opening formed in the housing wall surface, the opening / closing body is stored on the opening direction side. The storage case is provided with a through-hole for inserting a sensor lead wire at a position that does not overlap with the base steel frame constituting the housing wall surface (FIG. 5). reference).

In the embodiment described later, an invention in which only the following constituent elements are essential is also disclosed.
That is, one aspect of the present invention is an opening / closing device including an opening / closing body that performs a closing operation so as to partition a space, and a winding shaft that winds and unwinds the opening / closing body on its opening direction side. The take-up shaft includes a fixed shaft that is fixed to a non-movable portion by a support bracket and a fixing tool, and a winding body that is rotatably supported on the outer periphery of the fixed shaft. And a lower piece portion that receives the end portion side of the fixed shaft from below and an upper piece portion that contacts or approaches the end portion side from above, and the fastening device is an end portion of the fixed shaft. A bolt-like member inserted through the side, the lower piece portion and the upper piece portion, and a nut-like member screwed and tightened to the distal end side of the bolt-like member (see FIGS. 11 and 12).
According to this invention, it is possible to suppress the end of the fixed shaft from shaking up and down by tightening the bolt-shaped member and the nut-shaped member, and as a result, the axially central portion of the winding shaft hangs downward. You can prevent anything.

As another invention, there is provided an opening / closing device comprising an opening / closing body having an opening / closing body that performs a closing operation so as to partition a space, and a storage case that houses and feeds the opening / closing body on its opening direction side, In the installation structure of the opening / closing device, which is attached to a housing wall surface having a base material and a finishing material fixed to the surface of the base material, and opens and closes an opening formed in the housing wall surface, the storage case Is provided with a U-shaped abutting piece protruding rearward, the rear end of the abutting piece is in contact with the base material, and the upper end of the abutting piece is the lower end of the finishing material. It is characterized by being in contact or close proximity (see FIG. 6).
According to the present invention, when the storage case is attached to and detached from the housing wall surface, it is not necessary to apply the finishing material again, and the maintainability is good.

According to another aspect of the invention, an opening / closing device including a closing body that performs a closing operation so as to partition a space, and a storage case that stores or feeds the opening / closing body in the opening direction side is mounted on a wall surface of the housing. Then, in the installation structure of the opening / closing device configured to open and close the opening formed in the wall surface of the housing, the storage case is provided with a sensor lead wire at a position that does not overlap with the base steel frame constituting the housing wall surface. A through hole for insertion is provided (see FIG. 5).
According to this invention, since it is not necessary to form a hole or the like for inserting the lead wire for the sensor in the base steel frame, the workability is good.

According to another aspect of the invention, an opening / closing body that performs a closing operation so as to partition a space, a guide rail that guides an end in the width direction of the opening / closing body in the opening / closing direction, and the opening / closing body above the guide rail. And a shaft-like member that is in contact with at least the upper half side of the outer peripheral surface, the opening direction side of the opening / closing body has an airtightness that ensures airtightness inside and outside of the opening / closing body when fully closed A member is provided, and this airtight member is characterized in that the opening / closing body is sandwiched between the opening / closing drive shaft continuously in the lateral width direction of the opening / closing body (see FIGS. 2 and 5).
Here, the “shaft-shaped member” is configured such that a gear is meshed with a guide shaft that guides the opening / closing body along the upper half side in a crossing direction with respect to the opening / closing direction, or an engagement element provided on the opening / closing body. An opening / closing drive shaft for opening / closing the opening / closing body, a winding shaft or a winding body for winding the opening / closing body, and the like are included.
According to this configuration, since the opening / closing body is sandwiched between the airtight member and the shaft-like member, the airtightness inside and outside the opening / closing body can be favorably maintained.

In the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.
In the present specification, the “opening / closing body width direction” and the “opening / closing body width direction” are directions that are substantially orthogonal to the opening / closing direction of the opening / closing body and are not the thickness direction of the opening / closing body. This means the width direction.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body slides in order to partition or open the space.
Further, in this specification, the “surface direction” of the opening / closing body means a direction in which the front or back surface of the opening / closing body is continuous in the closed state, and this direction includes the opening / closing body opening / closing direction and the opening / closing body width direction. including.

<Specific Embodiment>
Next, specific embodiments having the above characteristics will be described in detail with reference to the drawings.

The opening / closing device 1 includes an opening / closing body 10 that performs a closing operation so as to partition a space, a guide rail 20 that guides the lateral width direction end of the opening / closing body 10 in the opening / closing direction, and an opening / closing body 10 on the opening direction side of the guide rail 20. And a storage unit 30 for storing and feeding out the shutter, and constitutes a shutter device (see FIG. 1).
The opening / closing device 1 is mounted on a wall surface A of a building or the like, and opens and closes the opening b of the wall surface A by the opening / closing body 10.

  The opening / closing body 10 includes a flexible sheet-like opening / closing body main body 11 and a plurality of engagement elements 12 fixed to the end of the opening / closing body body 11 in the opening / closing direction (see FIG. 5). 4).

The opening / closing body 11 is formed in a rectangular shape having a width that covers substantially the entire surface of the opening b that is opened and closed by the opening / closing device 1. The opening / closing body 11 may be formed from a single flexible sheet, or may be formed by connecting a plurality of flexible sheets in the opening / closing direction and / or the lateral width direction.
The flexible sheet is a synthetic resin sheet material (for example, a vinyl chloride resin sheet material or the like).
In addition, as another example of this flexible sheet material, a flame-retardant cloth such as glass cloth or silica cloth, a synthetic resin sheet material containing glass fiber, smoke shielding property or fire resistance (including flame resistance) It is possible to use other sheet materials having

On the lower end side of the opening / closing body 11, a seat plate portion 11 a having a bag-like longitudinal section is formed. The seat plate portion 11a is formed by processing a sheet material separate from the opening / closing body main body 11 into a cross-sectional bag shape and fixing it to the lower end of the opening / closing body main body 11, or the lower end side of the opening / closing body main body 11 in a bag shape. What is necessary is just to make it the aspect etc. which bent and stitched together.
The seat plate portion 11 a is formed narrower than the width between the left and right guide rails 20, 20, and is not inserted into the guide rail 20.

The engagement element 12 is a columnar member formed from a hard rigid resin material, a metal material, or the like.
The engagement elements 12 are provided on the lateral width direction end portion side of the opening / closing body main body 11 so that a plurality of central axes are arranged in the opening / closing direction with the central axis directed in the opening / closing body lateral width direction. Yes.
The outer diameter of the engagement element 12 is set larger than the thickness dimension of the opening / closing body main body 11. Therefore, the outer peripheral surface of each engagement element 12 protrudes from the surface of the opening / closing body main body 11 in the opening / closing body thickness direction.

  The guide rails 20 are respectively provided at both end portions in the lateral width direction of the opening / closing body 10. Each guide rail 20 is guided in the opening / closing direction by surrounding the lateral width direction end portion side of the opening / closing body 10 including the engagement element 12 with a guide groove having an opening narrower than the engagement element 12.

  The storage unit 30 engages with the opening / closing drive shaft 32 (shaft-like member) that rotates in the storage case 31 by engaging the engaging element 12 with the outer periphery of the upper half, and the outer periphery of the opening / closing drive shaft 32. The engaging guide member 33 fixed to the stationary part in the vicinity of the distal direction with respect to the engaging member 12 and the winding shaft 38 for winding the opening / closing body 10 guided by the opening / closing drive shaft 32 in the direction intersecting the opening / closing direction. (See FIG. 2).

The storage case 31 is configured in a rectangular parallelepiped shape that is long in the lateral direction of the opening / closing body.
An abutting piece 31b having a U-shaped cross section that opens on the side of the housing wall surface A is provided at the end of the housing case 31 on the side of the housing wall surface A.

According to the illustrated example, the contact piece 31b protrudes rearward from the rear end surface of the storage case 31 and protrudes upward from the upper end surface of the storage case 31 (see FIG. 2). Are provided continuously.
The abutting piece 31b abuts the rear end portion thereof on the base material (specifically, the base steel frame a1) of the casing wall surface A, and the upper end portion of the abutting piece is the lower end of the finishing material c covering the base material. In contact or close proximity (see FIG. 5).
According to the contact piece 31b, when the storage portion 30 is mounted on the housing wall surface A, the contact piece 31b is formed at the corner where the lower end surface of the finishing material c and the surface of the base material (base steel frame a1) intersect. The contact piece 31b may be fastened to the base material with a fastening tool 31f (for example, a screw or a bolt), and the workability is good.
Moreover, when removing the storage part 30 from the housing wall surface A, it is only necessary to pull out the fastening tool 31f and pull the storage part 30 toward the front of the housing wall surface A. At this time, the finishing material c is peeled off or destroyed. Etc. work is not required.

Further, the surface on the side of the housing wall surface A of the storage case 31 penetrates through the lead wire L for the sensor S1 at a position that does not overlap the base steel frames a1 to a3 (see FIG. 1) constituting the housing wall surface A. A hole 31c (see FIG. 5) is provided.
The base steel frame a1 is a metal cross beam embedded in the frame wall surface A. The contact piece 31b on the upper end side of the storage case 31 is fixed to the base steel frame a1 with a fixing tool such as a bolt or a screw.
The foundation steel frame a2 is a metal cross beam provided in the frame wall surface A with a space below the foundation steel frame a1.
The base steel frame a <b> 3 is a metal column embedded in the frame wall surface A, and is located on both sides of the opening b that is opened and closed by the opening / closing device 1.
The lead wire L of the sensor S1 is disposed so as to avoid the base steel frames a1 to a3, and is inserted into the through hole 31c on the surface of the housing case 31 on the side of the housing wall surface A.
Therefore, according to these structures, it is not necessary to provide a hole, a notch, or the like for inserting the lead wire L in the base steel frames a1 to a3.

Sensors S1 and S2 are sensors for non-contact sensing of a person or a vehicle that is about to pass through the opening b. For example, a near-infrared reflective area sensor, a pyroelectric sensor, and other non-contact sensors Used.
One sensor S1 is fixed to a stationary part (for example, a housing wall surface A or a device (not shown) attached to the housing wall surface A) on one side in the passage direction of the opening b.
The other sensor S <b> 2 is fixed to a stationary part (on the lower end side of the storage case 31 according to the illustrated example) on one side in the passing direction of the opening b.
The sensing signals from these sensors S1 and S2 are guided to the control circuit 40 in the storage case 31 by the lead wire L. The control circuit 40 controls the opening / closing operation of the opening / closing body 10 according to the sensing signal.

Further, on the lower end side in the storage case 31, an open lintel portion 31 a that communicates with the upper end side of the guide rail 20 and extends and retracts the opening / closing body 10 is provided on the lower end side.
An airtight member 35 a is provided on the inner wall surface (the inner surface of the lintel) of the lintel portion 31 a so as to project in the thickness direction of the opening / closing body and have the protruding end abut against the surface of the opening / closing body 10.
The airtight member 35a is formed in a flat plate shape from an elastic material such as rubber or elastomer resin, and its tip is continuously in contact with the entire length of the opening / closing body 10 in the lateral direction of the opening / closing body.

An airtight member 35b is provided on the upper side in the storage case 31 so as to sandwich the opening / closing body 10 between the opening / closing drive shaft 32 (shaft-like member).
The hermetic member 35b is a flat plate member made of the same material as the hermetic member 35a, and its tip is continuous over the substantially entire length in the lateral width direction with respect to the outer surface of the opening / closing body 10 on the upper half side of the opening / closing drive shaft 32. The opposite end side is fixed to the inner surface (non-moving part) of the storage case 31 via a bracket or the like.

  According to these airtight members 35a and 35b, in the fully closed state of the opening / closing body 10, it is possible to prevent the gas from passing through the storage case 31 in the opening / closing body thickness direction and impairing the closing performance of the opening / closing body 10. it can.

The opening / closing drive shaft 32 is a substantially cylindrical member having a gear 32a (see FIG. 3) that meshes with the engagement element 12 on the end side in the axial direction. It is supported rotatably.
An opening / closing device (motor not shown) for driving and rotating the opening / closing drive shaft 32 and a gear for transmitting the rotational force of the opening / closing device to the opening / closing drive shaft 32 are provided inside or at the end of the opening / closing drive shaft 32. A mechanism or the like is provided.

The engaging member guide member 33 is a substantially curved member having a concave curved surface 33a having a shape along a part on the upper half side of the outer peripheral surface of the opening / closing drive shaft 32.
The engaging member guide member 33 brings the concave curved surface 33a close to the plurality of engaging members 12 meshed with the upper half portion side of the gear 32a of the opening / closing drive shaft 32 with an appropriate gap therebetween, and a plurality of screwing members 34. Is fixed to the support bracket 37 (non-moving part) (see FIG. 7).
In FIG. 7, reference numeral 36 denotes a guide roller that restricts the engagement element 12 from shifting in the opening / closing body width direction.

  The engaging member guide member 33 is provided with a plurality of through holes 33b (see FIG. 8). A first screwing member 34 is inserted into each of the through holes 33b, and the tip of each first screwing member 34 is inserted. The side is screwed to the support bracket 37.

Each first screwing member 34 has a male screw portion 34a screwed into the screw hole 37a of the support bracket 37 on the front end side, and an inner peripheral surface of the through hole 33b on the rear end side of the male screw portion 34a. It has a shaft portion 34b that is in contact and has a larger outer diameter D than the male screw portion 34a, and a head portion 34c that is enlarged in diameter on the rear end side of the shaft portion 34b (see FIG. 8A).
The first screw member 34 is replaceably provided in a second screw member 34 ′ (see FIG. 8B) having a shaft portion 34b ′ having an outer diameter d smaller than the inner diameter of the through hole 33b. Thus, it functions as a position adjusting mechanism that adjusts the position of the engaging member guide member 33.

That is, as shown in FIGS. 8A and 8B, the second screwing member 34 is obtained by replacing the first screwing member 34 with a second screwing member 34 'having a small diameter shaft portion. The engagement member guide member 33 can be moved in the center direction of the opening / closing drive shaft 32 between the head of 'and the support bracket 37. The engagement member guide member 33 is fixed by being sandwiched between the head of the second screwing member 34 ′ and the support bracket 37.
Therefore, for example, when the engagement element 12 is worn and the clearance between the engagement element 12 and the engagement element guide member 33 is increased, and the engagement element 12 is easily detached from the gear 32a, the engagement is performed as described above. The mating guide member 33 can be moved to narrow the gap and prevent the engagement element 12 from falling off.

  The second screwing member 34 ′ may be provided in the opening / closing device 1 in advance as a service replacement part, for example.

As another example of the position adjusting mechanism, the structure shown in FIG. 9 may be used.
In the position adjusting mechanism shown in FIG. 9, a cylindrical spacer 34d is detachably provided between the inner peripheral surface of the through hole 33b and the outer peripheral surface of the shaft portion 34b ′ of the screwing member 34 ′.
Therefore, for example, when the engagement member 12 is worn out and the clearance between the engagement member 12 and the engagement member guide member 33 is increased, and the engagement member 12 is easily detached from the gear 32a, the screwing member 34 'is removed. After removing the spacer 34d and removing the spacer 34d, if the engaging member guide member 33 is moved toward the center of the opening / closing drive shaft 32 and the screwing member 34 ′ is tightened again, the gap can be narrowed and the engaging member 12 can be removed. Can be prevented.

Furthermore, as another example of the position adjusting mechanism, the structure shown in FIG. 10 may be used.
In the position adjustment mechanism shown in FIG. 10, a plurality of screw holes 37a of the support bracket 37 are provided so that the distances in the centrifugal direction with respect to the opening / closing drive shaft 32 are different, and the plurality of screw holes 37a are selectively used.
More specifically, in the initial state, as shown in FIG. 10A, the screwing member 34 is tightened using a screw hole 37 a far from the opening / closing drive shaft 32.
Then, when the engagement element 12 is worn and a gap between the engagement element 12 and the engagement element guide member 33 becomes large and the engagement element 12 is easily detached from the gear 32a, the screwing member 34 is once removed. Then, the screwing member 34 inserted through the engaging member guide member 33 again is fastened to the screw hole 37a closer to the opening / closing drive shaft 32 (lower side in the drawing) (see FIG. 10B).
Therefore, the gap can be reduced.

The winding shaft 38 is a substantially cylindrical member in which an end of the opening / closing body 10 on the opening direction side is fixed to the outer peripheral surface.
The winding shaft 38 supports a cylindrical winding body 38 a that winds and unwinds the opening / closing body 10, and rotatably supports the winding body 38 a from the inside via a bearing (not shown). And a fixed shaft 38b.

The winding body 38a is urged in the winding direction with respect to the fixed shaft 38b by an internal urging member (a coil spring (not shown)).
Both end portions of the fixed shaft 38b are rotatably supported on the inner surface of the storage case 31 via the shaft support bracket 39 and the fastener 41 (see FIG. 11).

The shaft support bracket 39 is formed by bending a metal plate material, and includes a lower piece portion 39a that receives the end portion side of the fixed shaft 38b from below, and an upper piece portion 39b that contacts or approaches the end portion side from above. The lower piece 39a and the upper piece 39b are connected to each other by a connection piece 39c on the back side and are formed in a substantially U-shaped cross section with the front side opened (see FIGS. 11 to 12).
The pivot bracket 39 is fixed to the inner surface of the storage case 31 by fastening pieces 39d, 39e, 39f projecting around the lower piece 39a, the upper piece 39b, and the connection piece 39c.

The lower piece portion 39a is provided so as to protrude to the near side (right side according to FIG. 12) from the upper piece portion 39b, and a fixed shaft is provided on the near side from the fixed shaft 38b on the lower piece portion. A small protrusion 39a1 is provided to allow 38b to get over the front side and to be removed.
More specifically, as shown in FIG. 12, the interval w between the front end portion of the upper piece 39b and the protruding end portion of the small protrusion 39a1 is set to a width that can pass through the fixed shaft 38b. Yes.
According to this configuration, it is possible to prevent the fixed shaft 38b from rolling off to the near side and dropping off from the pivot support bracket 39 with the small protrusion 39a1 in a state where the fastening tool 41 is removed. In addition, the work of attaching and detaching the take-up shaft 38 to and from the support bracket 39 can be easily performed during maintenance.

Further, the fastening device 41 is screwed and tightened to a bolt-like member 41a inserted through the end portion side of the fixed shaft 38b, the lower piece portion 39a and the upper piece portion 39b, and the distal end side of the bolt-like member 41a. And a nut-like member 41b.
According to this fastening tool 41, the pivot bracket 39, and the like, it is possible to restrict the end side of the fixed shaft 38b from moving upward with respect to the pivot bracket 39. Along with the upward movement, it is possible to prevent the axial central portion of the winding shaft 38 from being bent downward due to its own weight.

In FIG. 2, reference numeral 28 denotes an obstacle detection sensor that detects an obstacle below the opening / closing body 10.
The obstacle sensing sensor 28 is a sensor (for example, a photoelectric tube sensor) that senses an obstacle in a non-contact manner, and transmits the sensing signal to the control circuit 40 in the storage case 31. The control circuit 40 stops or reverses the opening / closing body 10 during the closing operation when the sensing signal is received.

Further, in the above embodiment, the end of the airtight member 35b in the opening / closing body width direction is preferably a member for facilitating the replacement work of the screwing member 34 and for preventing the airtight performance from being impaired as much as possible. It arrange | positions in the position which does not interfere with the child guide member 33. FIG.
Here, the position that does not interfere with the engagement member guide member 33 is, for example, a position where the end of the airtight member 35 b in the opening / closing body width direction does not reach the engagement member guide member 33. The end of the airtight member 35b in the opening / closing body width direction can also be disposed so as to reach and further exceed the engagement member guide member 33. In this case, for example, the engagement member guide member 33 in the airtight member 35b. It is only necessary to provide a notch through which the engaging member guide member 33 is inserted or a part of the engaging guide member 33 is removed.
As another example of the configuration in which the end of the airtight member 35b in the opening / closing body width direction is positioned so as not to interfere with the engagement member guide member 33, the distal end portion of the airtight member 35b is formed as the opening / closing body thickness of the engagement member guide member 33. It is arranged on the front side (right side according to FIG. 2) from the front end in the vertical direction (upper right side according to FIG. 2), and the tip is in contact with the surface of the opening / closing body 10 or on the contrary The distal end portion of the airtight member 35b is disposed below the rear end portion (left lower end portion according to FIG. 2) of the engagement member guide member 33 in the opening / closing body thickness direction, and the distal end portion is disposed on the opening / closing body 10. It is also possible to adopt an aspect in contact with the surface.

Moreover, in the said embodiment, although the positional relationship of the screwing member 34 can be set arbitrarily, it is as follows as a preferable example.
Considering that it is necessary to replace a plurality of screw members 34 at the same time when replacing the screw members 34, in order to improve the replacement workability, It is preferable that all of the plurality of screwing members 34 be biased toward either the upper side (upper right side according to FIG. 2) or the lower side (lower left side according to FIG. 2) (see FIG. 7).
For example, when the screwing member 34 is exchanged, when the workability on the upper side is good due to the positional relationship with the opening / closing body 10, the opening / closing drive shaft 32, the upper part of the storage case 31, etc., a plurality of screwing members 34 are provided. Are arranged so as to be biased upward from the airtight member 35b. On the contrary, when the workability on the lower side is good, the plurality of screwing members 34 are arranged to be biased to the lower side than the airtight member 35b.

Moreover, in the said embodiment, it is preferable that the relationship between the screwing member 34 and the support bracket 37 is as follows.
The length by which the male screw portion 34 a of the screwing member 34 protrudes from the support bracket 37 is shorter than the length of the bent portion 37 b on the upper side of the support bracket 37. That is, the male screw portion 34a is prevented from protruding outward in the opening / closing body width direction from the bent portion 37b (see FIGS. 8 to 10).

According to the above embodiment, the engaging member guide member 33 is moved by attaching and detaching the screwing member 34. As another example, one of the engaging member guide member 33 and the support bracket 37 has an opening / closing drive shaft. 32, a guide groove directed toward the center may be provided, and the other may be provided with a convex portion that fits into the guide groove and is movable.
According to this other example, the engaging member guide member 33 can be brought close to the engaging member 12 around the gear 32a by sliding the convex portion into the guide groove.

  Further, according to the above embodiment, the upper end side of the opening / closing body 10 is guided in the crossing direction by the opening / closing drive shaft 32, and the opening / closing body 10 is wound around the winding shaft 38. It is also possible to omit the opening / closing drive shaft 32 and to provide a winding shaft on the upper side of the guide rail 20 so that the opening / closing body 10 is directly wound or unwound by this winding shaft.

  Moreover, this invention is not limited to the embodiment mentioned above, In the range which does not change the summary of this invention, it can change suitably.

DESCRIPTION OF SYMBOLS 1: Opening / closing device 10: Opening / closing body 11: Opening / closing body main body 12: Engagement element 20: Guide rail 30: Storage part 31: Storage case 32: Opening / closing drive shaft 33: Engagement member guide member 33b: Through-hole 34: Screwing member ( First screwing member)
34 ': Screwing member (second screwing member)
34d: Spacer 35b: Airtight member 37: Support bracket 38: Winding shaft 38a: Winding body 38b: Fixed shaft 39a: Shaft support bracket 39a: Lower piece portion 39a1: Small protrusion 39b: Upper piece portion A: Housing wall surface L: Lead wires S1, S2: Sensors a1, a2, a3: Base steel frame c: Finishing material

Claims (9)

  An opening / closing body that performs a closing operation so as to partition the space, a plurality of engagement elements fixed to the opening / closing direction of the opening / closing body in the opening / closing direction, and an end portion of the opening / closing body including the engagement element in the width direction A guide rail that guides the side in the opening and closing direction, an opening and closing drive shaft that rotates by engaging an outer peripheral portion with the engagement element on the opening direction side of the guide rail, and the engagement element on the outer peripheral portion of the opening and closing drive shaft An opening / closing apparatus comprising: an engaging member guide member supported by a non-moving portion so as to approach from the centrifugal direction side; and a position adjusting mechanism for adjusting a distance between the engaging member guide member and the opening / closing drive shaft. . A through hole is provided in the engagement member guide member, and a screw hole is provided in the immovable portion.
The position adjusting mechanism includes a first screwing member and a second screwing member exchangeable with the first screwing member so as to be selectively attached,
The first screwing member has a male screw part screwed into the stationary part, and a shaft part that contacts the inner peripheral surface of the through hole at a rear side of the male screw part,
The second screwing member is formed with a male screw portion to be screwed into the immovable portion, a rear side of the male screw portion and a smaller diameter than the shaft portion of the first screwing member. The switchgear according to claim 1, further comprising a shaft portion. An opening / closing device in which a through hole is provided in the engaging member guide member, and a screwing member inserted into the through hole is screwed into the immovable portion,
2. The switchgear according to claim 1, wherein the position adjusting mechanism includes a cylindrical spacer detachably provided between an inner peripheral surface of the through hole and an outer peripheral surface of the screwing member. An opening / closing device in which a through hole is provided in the engaging member guide member, and a screwing member inserted into the through hole is screwed into a screw hole provided in the immovable portion,
2. The position adjusting mechanism is provided with a plurality of screw holes so that a distance in a centrifugal direction with respect to the opening / closing drive shaft is different, and the plurality of screw holes are selectively used. Switchgear. A winding shaft for winding and unwinding the opening / closing body is provided, and the winding shaft is fixed to a stationary part by a pivotal support bracket and a fastening tool, and an outer periphery of the fixed shaft. And a winding body supported rotatably.
The pivot bracket integrally includes a lower piece portion that receives the end portion side of the fixed shaft from below, and an upper piece portion that contacts or approaches the end portion side from above,
The fastening device includes a bolt-like member inserted through an end portion side of the fixed shaft, the lower piece portion, and the upper piece portion, and a nut-like member screwed and tightened to a distal end side of the bolt-like member; The switchgear according to any one of claims 1 to 4, wherein the switchgear is provided. The pivot bracket has an opening on the front side of the lower piece and the upper piece so that the end side of the fixed shaft can be pulled out from between the lower piece and the upper piece. Formed in a substantially U-shaped cross-section with connected sides,
The lower piece portion is provided so as to protrude to the nearer side than the upper piece portion, and a small protrusion that passes over the fixed shaft and passes through the portion protruding to the near side on the lower piece portion. The switchgear according to claim 5, wherein the switchgear is provided. On the opening direction side of the opening / closing body, an airtight member for ensuring the airtightness inside and outside of the opening / closing body when fully closed is provided,
The opening / closing device according to any one of claims 1 to 6, wherein the airtight member sandwiches the opening / closing body between the opening / closing drive shaft and the opening / closing body. The switchgear according to any one of claims 1 to 7 is attached to a housing wall surface having a base material and a finishing material fixed to the surface of the base material, and an opening formed on the wall surface of the housing is opened and closed. In the installation structure of the switchgear designed to
A storage case for storing and feeding out the opening / closing body in the opening direction side is provided, and an end of the housing wall side at the upper end of the storage case is in contact with a U-shaped cross-section that opens the rudder wall surface side. A piece is provided,
An installation structure of an opening / closing device, wherein the housing wall surface side of the contact piece is in contact with the base material, and the upper end portion of the contact piece is in contact with or close to the lower end of the finishing material. In the installation structure of the switchgear which mounts the switchgear of any one of Claims 1 thru / or 7 on a housing wall surface, and opens and closes the opening formed in the housing wall surface,
A storage case for storing and feeding out the opening / closing body in the opening direction side is provided, and a lead wire for the sensor is inserted into the storage case at a position that does not overlap with the base steel frame constituting the housing wall surface. An opening / closing device installation structure characterized in that a through hole is provided.

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