JP2007182690A - Winding shaft supporting structure for opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding shaft supporting structure for an opening/closing device, which can prevent a malfunction from being caused because a movable member is forced to get away to the side of a winding shaft from a fixing member. <P>SOLUTION: In the winding shaft supporting structure for an opening/closing device, the winding shaft is supported by the fixing member 42 so that the movable member 41 for supporting an end of the winding shaft 30 can be moved in the direction of getting close to/away from an opening/closing body 10, when the opening/closing body is paid out from the winding shaft 30. The supporting structure comprises a first guide means A for guiding the movable member 41 in the direction of getting close to/away from the opening/closing body, while receiving the movable member 41 at least from the lower side by the fixing member 42, and second guide means B for guiding the movable member 41 in the direction of getting close to/away from the opening/closing body, while receiving the movable member 41 from the side of the winding shaft by the fixing member 42. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a winding shaft support structure in an opening / closing device such as a shutter device in which an opening / closing body that opens and closes is wound around a winding shaft.

Conventionally, in this type of invention, as described in Patent Document 1, for example, a movable member (roller member 32) that supports the end of the winding shaft (20) is fed out from the winding shaft (20). There is a winding shaft structure of an opening / closing device that is supported by a fixing member (supporting member 40) so as to be moved closer to and away from the opening / closing body (10).
In this prior art, the vibration in the opening / closing body thickness direction accompanying the opening / closing operation of the opening / closing body (10) can be suppressed by the movement of the winding shaft (20) in the horizontal direction, and the opening / closing body (10) is guided by the guide rail (50). ), The friction between the open / close body (10) and the guide rail (50) can be reduced.

However, according to the above prior art, the movable member (roller member 32) supporting the axial end of the winding shaft (20) is received by the fixed member (support member 40). When the winding shaft (20) and the opening / closing body (10) are relatively heavy and the center side in the axial direction of the winding shaft (20) is bent into a substantially arcuate shape due to the weight, the fixing member (supporting member 40) ) Acts to move the movable member (roller member 32) toward the take-up shaft (20), and the movable member (roller member 32) is moved to the take-up shaft (20) side due to this force. There is a risk that it may be damaged by being tilted or may be detached from the fixing member (supporting member 40).
JP 2004-332267 A

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved is opening and closing that can prevent a malfunction caused by the movable member moving away from the fixed member toward the winding shaft. It is providing the winding shaft support structure for apparatuses.

  In order to solve the above-mentioned problem, the first invention uses a fixed member to move the movable member that supports the end of the winding shaft in the approaching / separating direction with respect to the opening / closing body when the winding shaft is unwound from the winding shaft. In the supporting winding shaft support structure for the switchgear, the first guide means for guiding the movable member in the approaching / separating direction while receiving the movable member from at least the lower side by the fixed member, and the movable member being wound by the fixed member. And second guide means for guiding in the approaching / separating direction while receiving from the shaft side.

Here, in the switchgear to which the winding shaft support structure according to the present invention is applied, a mode in which the switchgear is used only to perform a closing operation (for example, closed for the purpose of smoke shielding or flame shielding only in an emergency). Shutter device, etc.), and modes in which the opening / closing body is used to perform only an opening operation (for example, a shutter device opened for the purpose of escape, etc. only in an emergency), and the opening / closing body has an opening operation and a closing operation. The aspect etc. which are used to perform both are included.
The opening / closing body provided in the opening / closing device includes an opening / closing body formed by connecting so-called slats in the opening / closing direction, an opening / closing body formed by arranging pipe members at predetermined intervals in the opening / closing direction, and a plurality of panel-like members. Open / close bodies connected in the open / close direction, open / close bodies formed of flexible sheet materials, open / close bodies formed by appropriately combining these slats, pipe materials, panel-like members, flexible sheet materials, and the like.

The movable member is a member that moves in the approaching / separating direction relative to the fixed member.
Further, the fixed member is a member that supports the movable member so as to move in the approaching / separating direction and is fixed to a non-moving portion.

Further, the approaching / separating direction is a direction in which the opening / closing body is approached or separated from the opening / closing body when being drawn out from the take-up shaft. For example, when a guide rail that guides the opening / closing body in the vertical direction is provided. In this case, the direction of approaching or separating from the upper extension line of the guide rail may be used.
The approaching / separating direction is preferably a substantially horizontal direction that intersects the opening / closing body, and more preferably a downward inclination direction that intersects the opening / closing body and separates from the opening body.

  The structure in which the movable member is moved relative to the fixed member may be configured to slide the movable member along the fixed member. However, from the viewpoint of reducing the movement resistance, preferably, the movable member and the fixed member are It is preferable that a rolling member such as a roller member or a spherical member is interposed therebetween, and the movable member is moved along the fixed member while rolling the rolling member.

  More specifically, the first guide means may be configured such that a part of the movable member is guided in the approaching / separating direction while receiving at least a part of the movable member from the lower side.

As a more preferable example of the first guide means, the movable member is received from the lower side by the fixed member, and the fixed member is brought into contact with or close to the movable member from the upper side in the approaching / separating direction. It is set as the structure to guide.
According to this configuration, when the opening / closing body is stationary, the movable member is received from the lower side by the fixed member, and during the opening / closing operation of the opening / closing body, the rotational moment of the winding shaft When the movable member rattles or flutters in the vertical direction due to vibrations in the vertical direction or the vertical direction, the rattling or fluttering is suppressed from both the upper side and the lower side. Can do.
As a specific example of this configuration, the movable member is formed in a substantially concave shape with an opening formed sideways, the fixed member is inserted into the concave portion, and the movable member is received from the lower side by the fixed member. The structure etc. which made the said fixed member contact or adjoin from the upper side with respect to the said movable member are mentioned.

  Further, the second guide means more specifically guides the part other than the part of the movable member in the approaching / separating direction while receiving the part other than the part of the fixed member from the winding shaft side. What is necessary is just composition.

  Further, the second invention is characterized in that the second guide means is disposed above the first guide means.

  Here, the configuration that “the second guide means is disposed at least above the first guide means” will be described in more detail. In the second guide means, the movable member and the fixed member are in contact with each other. Then, the guide portion that guides the movable member in the approaching / separating direction is more than the guide portion that guides the movable member in the approaching / separating direction by contacting the movable member and the fixed member at least in the first guide means. What is necessary is just to set it as the structure arrange | positioned at the upper side.

  In the third invention, the second guide means includes a second guide portion protruding upward on one of the fixed member and the movable member, and the second guide portion on the other side. Is provided with a second engaging portion that is engaged with the second guide portion so as to cover from above, and the tip end side of the second engaging portion is brought into contact with the second guide portion in the axial direction of the take-up shaft. It is characterized by doing so.

  That is, in the third invention, the second guide portion may be provided on the fixed member, and the second engagement portion may be provided on the movable member, or the second guide portion may be provided on the movable member. The second engaging portion may be provided on the fixing member.

Here, as a specific example of the second guide part and the second engagement part, either one of the second guide part and the second engagement part leads the other in the approaching / separating direction. A configuration having a guide surface, the other being a rolling member (including a roller member, a roller shaft, a spherical member, etc.) provided so that the other rolls along the guide surface, or one of them is the other And the other is a configuration in which the other is guided in the approaching / separating direction while being in sliding contact with the guide surface, in particular, the approaching / separating direction of the movable member. In order to improve the movement to the position, it is preferable to have a configuration including a rolling member as in the former.
Further, both the second guide portion and the second engagement portion are members having guide surfaces extending in the approaching / separating direction, and the second engagement portion and the second engagement portion are provided between these members. Independent of the engaging portion, a rolling member (including a roller member, a roller shaft, a spherical member, etc.) may be interposed.

  In the fourth invention, the second guide means includes a second roller member on one of the fixed member and the movable member, and the second roller member includes the fixed member and the movable member. The movable member is arranged to move in the approaching / separating direction by rolling with the outer peripheral surface abutting against the other of the two.

  In the fifth invention, the first guide means is provided with a substantially concave first guide portion extending in the approaching / separating direction on one of the fixed member and the movable member, and on the other side, A first engagement portion that engages inside the concave portion of the first guide portion is provided, and the inside and outside of the first guide portion are shielded from the opening end portion in the approaching and separating direction of the first guide portion. And a dust cover is provided.

  Here, the dust-proof cover may completely close the opening end portion in the approaching / separating direction of the first guide portion, or may cover it with a gap.

  In the sixth invention, the dust cover is a flexible member whose upper end is fixed to the first guide portion side, and is pressed by the first engagement portion to bend, thereby opening the opening end. It is characterized in that it is provided so as to be in a free-hanging state and to close the open end with the movement of the first engaging portion in the reverse direction.

  Here, the free-hanging state means that the first engaging portion is separated from the dust-proof cover by the movement in the reverse direction, and the deflection of the dust-proof cover is substantially eliminated, and is fixed to the dust-proof cover. It means a state where no part hangs down due to its own weight.

  Further, the seventh invention is characterized in that the movable member is guided in a downward inclination direction away from the opening / closing body when the movable member is drawn out from the winding shaft.

  According to an eighth aspect of the invention, there is provided a third guide means for guiding the movable member in the approaching / separating direction while abutting the movable member against the fixed member from the winding shaft side.

In the present specification, the “opening / closing body width direction” means a direction substantially perpendicular to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body.
Further, in this specification, the “opening / closing direction of the opening / closing body” means a direction in which the opening / closing body moves to partition or open the space.
Further, in this specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.

Since the present invention is configured as described above, the following effects can be obtained.
According to the first invention, the second guide means can prevent the movable member from moving toward the take-up shaft side with respect to the fixed member while receiving the weight on the movable member side by the first guide means.
Therefore, the center side of the winding shaft is bent by the weight of the supported winding shaft and the opening / closing body around the winding shaft, and the movable member is prevented from moving away from the fixed member toward the winding shaft. As a result, the bending of the winding shaft can be suppressed, and the movable member can be prevented from being tilted toward the winding shaft and damaged or detached from the fixed member.

  Furthermore, according to the second invention, it is possible to effectively prevent the movable member from being inclined toward the take-up shaft side due to the weight on the take-up shaft side, and as a result, the fixed member and the movable member by the first guide means. It is possible to stabilize the vertical contact between the movable member and the movable member.

  Furthermore, according to the third invention, since the second engaging portion is engaged with the second guide portion so as to cover the second guide portion from above, the movable member moves toward the winding shaft with respect to the fixed member. It can prevent more effectively that it leaves | separates or a movable member inclines to the winding shaft side.

  Further, according to the fourth invention, the resistance when the movable member moves can be reduced by the second roller member.

  Further, according to the fifth invention, the dust cover can prevent dust and foreign matter from entering the first guide portion having a substantially concave cross section constituting the first guide means. The joint can be maintained in a state in which it can move smoothly.

  Furthermore, according to the sixth invention, since the dustproof cover opens only when the movable member moves toward the end in the moving direction, the moving member moving direction in the winding shaft support structure for the switchgear Can be minimized.

  Furthermore, according to the seventh invention, the movable member moves smoothly in the direction away from the opening / closing body when it is drawn from the winding shaft, that is, the movable member moves in a direction in which movement is relatively difficult. be able to.

  Further, according to the eighth invention, the movable member is caused by the third guide means due to the weight of the take-up shaft side or the swinging of the take-up shaft while the opening / closing body is taken up and fed out. Can be more effectively prevented from moving away from the fixed member toward the take-up shaft side or the movable member being inclined toward the take-up shaft side. This is effective when the weight is relatively large.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The winding shaft support structure for the switchgear according to the present embodiment is disposed in the opening of a construction / structure such as a house, building, warehouse, factory, underground shopping street, tunnel, vehicle loading platform, etc., or inside the construction / structure. The present invention will be described as an example applied to an opening / closing device that opens and closes the opening and partitions or opens a space inside the construction / structure.

The opening / closing device 1 includes an opening / closing body 10 that opens and closes while sliding an end portion in the closing direction, guide rails 20 that guide both ends in the width direction of the opening / closing body 10 in the opening / closing direction, and winds up the opening / closing body 10. A take-up shaft 30 that extends and extends, and a take-up shaft support device 40 that supports both ends of the take-up shaft 30, and the take-up shaft 30 is drawn from the take-up shaft 30 and hangs down. It is comprised so that it may move to the approach / separation direction with respect to the opening / closing body 10 (refer FIG. 1).
The approaching / separating direction is a direction approaching or separating from the upper extension line L of the guide rail 20 in FIG. 1. In a preferred example of this embodiment, the approaching / separating direction is away from the upper extension line L. The direction is a slight downward slope.

The opening / closing body 10 connects a plurality of slats 11 so as to rotate between adjacent slats 11, 11, and contacts a contact target site p such as a floor surface, the ground, a frame member, or the like at an end portion in the closing direction. A seat plate member 12 (see FIGS. 6 and 7) for contact is connected.
Each slat 11 is formed by subjecting a horizontally long and substantially rectangular metal plate having a predetermined thickness to appropriate processing such as extrusion molding, pultrusion molding, bending, and the like, and is composed of a flat portion and curled portions at upper and lower ends thereof. The surface is substantially concave and is formed in a substantially long rectangular shape in plan view across the opening / closing body width direction (depth direction in FIG. 1).
The opening / closing body 10 having the above-described configuration is configured so that the recess 11a on the inner surface side of each slat 11 faces the winding body 32, and the end on the opening direction side is the outer periphery of the winding body 32 in the winding shaft 30. It is fixed to the surface.

Further, the guide rails 20 are respectively disposed on both ends of the opening / closing body 10 in the width direction. Each guide rail 20 is a member in which a metal plate such as an aluminum alloy material or a steel material is formed in a substantially U-shaped cross section, and a contact target portion p from a storage case 50 storing the winding shaft 30. It is erected vertically.
On the upper end side of each guide rail 20, a squeezed portion 21 that spreads upward in a substantially trumpet shape is formed. When the portion of the opening / closing body 10 above the guide rail 20 is inclined in the opening / closing body thickness direction, the swaging portion 21 makes contact between the guide rail 20 and the opening / closing body 10. It is something to prevent.

  Further, as shown in FIG. 4, the winding shaft 30 includes a fixed shaft 31 that cannot rotate, a winding body 32 that is rotatably supported on the outer periphery of the fixed shaft 31, and a periphery of the fixed shaft 31. The coil spring 33 is wound around.

The fixed shaft 31 is a hollow or medium-shaft shaft body, and is formed slightly shorter than the overall length of the opening / closing body 10 in the opening / closing body width direction.
The winding body 32 rotatably supports a plurality of disk-like support members 32a on the outer peripheral surface of the fixed shaft 31 via bearings or the like, and is substantially cylindrical on the outer circumference of these disk-like support members 32a. The drum 32b is fixed, and the opening direction end of the opening / closing body 10 is fixed to the outer peripheral surface of the drum 32b.
The coil spring 33 has one end fixed to the fixed shaft 31 and the other end so as to rotate the winding body 32 with respect to the fixed shaft 31 in the winding rotation direction (clockwise according to FIG. 1). The side is fixed to the winding body 32.
The drum 32b may be configured in a substantially bowl shape by being fixed to the outer peripheral surface of the disk-like support member 32a and being replaced with a plurality of rod-like members extending in the opening / closing body width direction.

  And the winding shaft 30 of the said structure is supported by the winding shaft support apparatus 40 which each of the both ends of the fixed shaft 31 mentions later.

The take-up shaft support device 40 moves the movable member 41 that supports the end portion of the fixed shaft 31 in the take-up shaft 30 and the opening / closing body 10 when the movable member 41 is unwound from the take-up shaft 30. And a fixing member 42 fixed to a stationary part (the storage case 50 according to the illustrated example).
The take-up shaft support device 40 is movable on the upper side of the first guide means A and the first guide means A for guiding the movable member 41 in the approaching and separating direction while receiving the movable member 41 from the lower side by the fixed member 42. Second guide means B for guiding the member 41 in the approaching / separating direction while receiving the member 41 from the winding shaft 30 side (left side in FIG. 3) by the fixing member 42 is configured.

  As shown in FIG. 3, the movable member 41 includes a winding shaft support portion 41 a that supports the end portion of the fixed shaft 31 in the winding shaft 30, and a first guide portion 41 b that constitutes the first guide means A. The second guide portion 41c constituting the second guide means B, the restricting portion 41d for restricting the amount of movement relative to the fixing member 42, and the opening end portion of the first guide portion 41b in the approaching / separating direction are provided. And a dust-proof cover 41e.

The winding shaft support portion 41a is configured in a concave shape in which the end portion of the fixed shaft 31 of the winding shaft 30 can be inserted from above, and according to the illustrated example, the winding shaft support portion 41a has a substantially U-shaped cross section with the opening portion facing upward. Is formed.
After the end portion of the fixed shaft 31 is inserted into the winding shaft support portion 41a, a fastener 41a1 such as a bolt and a nut or a rivet is inserted in each of a substantially vertical direction and a substantially horizontal direction.
And the winding-axis support part 41a fixes and supports the fixed axis | shaft 31 without rattling, when the fastener 41a1 is clamp | tightened.

The first guide portion 41b is formed in a substantially concave cross section extending in the approaching / separating direction (the depth direction in FIG. 3), and its upper surface is received and guided by a first roller member 42b1 of the fixing member 42 described later. The guide surface 41b1 is used.
Further, the first guide portion 41b has an inner lower surface as an auxiliary guide surface 41b3 that is close to the first roller member 42b1 of the fixing member 42 and extends in the approaching / separating direction.
The auxiliary guide surface 41b3 is the first roller member 42b1 when the movable member 41 rattles or fluctuates in the vertical direction due to the rotational moment of the winding shaft 30 or the vibration in the vertical direction. It abuts against, and suppresses rattling and fluttering.

The auxiliary guide surface 41b3 is configured to be close to the first roller member 42b1 according to the illustrated example, but may be configured to contact the first roller member 42b1.
In this configuration, when the movable member 41 moves in the approaching / separating direction while the first roller member 42b1 receives the guide surface 41b1 and rolls, the lower end side of the first roller member 42b1 is the auxiliary guide. It will be in sliding contact with the surface 41b3.

An inclination preventing member 41b2 that prevents the first guide portion 41b from being inclined toward the take-up shaft 30 due to the weight on the take-up shaft 30 side is fixed to the lower portion inside the first guide portion 41b.
The inclination preventing member 41b2 is provided so as to protrude upward from the lower surface inside the first guide portion 41b over the moving direction of the movable member so as to contact the lower side surface of the first roller member 42b1. Is formed in a substantially L-shaped cross section.
This tilt preventing member 41b2 can be omitted when the tilt suppressing effect on the first guide portion 41b is sufficient only by the second guide means B, or when the weight on the winding shaft 30 side is relatively small. is there.

The second guide portion 41c is disposed on the upper side of the first guide portion 41b, and is formed in a substantially protruding piece shape that protrudes upward and extends in the approaching / separating direction.
The surface of the second guide portion 41c on the winding shaft 30 side is a guide surface 41c1 that is brought into contact with and guided by a second roller member 42c1 of the fixing member 42 described later.

Further, as shown in FIG. 4, the restricting portion 41 d is configured to contact the second roller member 42 c 1 of the fixed member 42 and restrict the movement amount of the movable member 41 when the movable member 41 moves. The two guide portions 41c are disposed and fixed on both ends in the approaching / separating direction (left-right direction in FIG. 4).
The dimension between the restricting portions 41d is set such that the second roller member 42c1 of the fixed member 42 partially protrudes from the opening at both ends of the first guide portion 41b due to the movement of the movable member 41.

Moreover, the dustproof cover 41e is arrange | positioned so that the inside and outside of the 1st guide part 41b may be interrupted | blocked in each of the both ends of the said approach / separation direction in the 1st guide part 41b.
More specifically, the dust-proof cover 41e is a flexible sheet formed so as to cover the opening end portion in the approaching / separating direction of the first guide portion 41b, and its upper end side is an edge of the opening end portion. The lower end side is a free end.
The dust cover 41e is pressed and bent by the first roller member 42b1, thereby opening the opening end portion of the first guide portion 41b and accompanying the movement of the first roller member 42b1 in the reverse direction. Thus, it is in a free-hanging state due to its own weight (in other words, hanging down), and the opening end of the first guide portion 41b is closed.
The material of the dustproof cover 41e may be a flexible sheet-like material. In particular, in order to improve the closing property of the first guide portion 41b by an elastic restoring force, the dustproof cover 41e is made of an elastic body such as rubber. A sheet-like material is preferable.

  The fixing member 42 includes a fixed main body portion 42a fixed to the stationary part, a first engagement portion 42b constituting the first guide means A, and a second engagement portion 42c constituting the second guide means B. It has.

The fixed main body portion 42a is a portion that is substantially orthogonal to the axial direction of the take-up shaft 30, and each of an upper side and a lower side thereof is fastened to a non-moving portion by a fastening tool such as a bolt, a nut, or a rivet. The
At the time of fixing, the winding shaft support device 40 as a whole is slightly tilted so as to guide the movable member 41 in the downward inclination direction away from the opening / closing body 10 when the movable member 41 is drawn from the winding shaft 30. Fixed.
In addition, according to the illustrated example, the stationary part is the storage case 50 that houses the winding shaft 30 and the opening / closing body 10 when wound around the winding shaft 30, but may be any stationary part, For example, a frame body around the opening / closing device 1 or a wall surface of a casing on which the opening / closing device 1 is installed may be used.

The first engaging portion 42b protrudes from the substantially central portion of the fixed member 42 to the inside of the first guide portion 41b of the movable member 41, and the first roller member 42b1 is rotatably supported on the protruding end side.
According to the illustrated example, the first roller member 42b1 is a ball bearing, and the outer peripheral surface of the first roller member 42b1 abuts on the guide surface 41b1 of the first guide portion 41b and is supported so as to roll along the guide surface 41b1. The movable member 41 is moved in the approaching / separating direction by the rolling.

Further, the second engaging portion 42c is engaged with the second guide portion 41c of the movable member 41 so as to cover the second guide portion 41c from the upper side thereof, and the guide surface of the second guide portion 41c is provided at the distal end side thereof. The second roller member 42c1 is rotatably supported so that the outer peripheral surface is brought into contact with 41c1.
According to the illustrated example, the second roller member 42c1 is a ball bearing having a smaller diameter than the first roller member 42b1, and the movable member 41 is moved by rolling along the guide surface 41c1 of the second guide portion 41c. Move in the approaching / separating direction.

  As shown in FIG. 2, the winding shaft support device 40 having the above configuration is set such that the maximum dimension w <b> 1 is smaller than the inner diameter w <b> 2 of the opening / closing body 10 when it is wound around the winding shaft 30. It is a space in the body 10 and is disposed in a space s on the end side in the opening / closing body width direction.

Next, the operation and effect of the opening / closing device 1 having the above configuration to which the winding shaft support structure according to the present invention is applied will be described in detail.
According to the opening / closing device 1, it is movable due to the weight on the movable member 41 side, such as the weight of the winding shaft 30, the weight of the opening / closing body 10 wound around the winding shaft 30, and the weight of the movable member 41 itself. While a downward force acts on the member 41, a force in the direction of the winding shaft 30 acts on the upper side of the movable member 41, and the upper side of the movable member 41 tends to tilt in the direction of the winding shaft 30. .
However, the downward force of the movable member 41 is received by the contact between the guide surface 41b1 of the movable member 41 and the first roller member 42b1 of the fixed member 42, and the force in the direction of the winding shaft 30 is It is received by contact between the guide surface 41 c 1 of the movable member 41 and the second roller member 42 c 1 of the fixed member 42.
Further, according to the illustrated example, the inclination preventing member 41b2 prevents the lower side of the movable member 41 from tilting in the anti-winding shaft direction (right direction in FIG. 3).
Therefore, the movable member 41 can be prevented from moving away from the fixed member 42 toward the take-up shaft 30, or the movable member 41 can be tilted toward the take-up shaft 30. It is possible to prevent the roller member 42b1 from being damaged due to local stress concentration caused by the inclination or to be detached from the first guide portion 41b, and to smoothly move the movable member 41 in the approaching / separating direction. .

Further, the inside and outside of the opening end portion of the first guide portion 41b in the approaching / separating direction is blocked by a relatively thin dust-proof cover 41e that opens and closes as the first roller member 42b1 moves. The dimension of the shaft support device 40 in the approaching / separating direction can be minimized.
Accordingly, it is possible to prevent dust and foreign matter from entering the first guide portion 41b and to ensure smooth movement of the first roller member 42b1, and to make the take-up shaft support device 40 to the take-up shaft 30. It can be set as the small structure arrange | positioned inside the opening-closing body 10 at the time of winding.

Next, regarding the opening / closing device 1 having the above-described configuration, the operation and effect when the opening / closing body 10 is wound or unwound by the winding shaft 30 will be described in detail.
As shown in FIG. 6, when the opening / closing body 10 is wound around the winding shaft 30, the winding diameter of the opening / closing body 10 around the winding shaft 30 gradually increases and is drawn from the winding shaft 30 in the opening / closing body 10. The suspended part is inclined downward to the right between the upper end side of the guide rail 20 (see FIG. 6B).

Then, the contact N between the suspended opening / closing body 10 and the outer peripheral surface of the opening / closing body 10 wound around the winding body 32 is the weight of the opening / closing body 10 below the contact N or the winding shaft. Due to the reaction force of the force 30 that pulls the opening / closing body 10 in the diagonally upward left direction, a diagonally downward force F1 acts.
As shown in FIG. 6B, the force F1 is a force including a component of a rightward force FR and a component of a downward force Fd.

Therefore, the winding shaft 30 moves in a direction away from the upper extension line L of the guide rail 20 (right direction in the illustrated example) by the component of the rightward force FR.
Further, since the take-up shaft support device 40 is disposed in a downwardly inclined manner, the movement of the take-up shaft 30 is also assisted by this inclination.
During the movement, the part of the opening / closing body 10 below the contact point N is maintained in a substantially vertical state so as not to slide on the inner surface of the guide rail 20.

  Further, as shown in FIG. 7, when the opening / closing body 10 is drawn out from the winding shaft 30, the winding diameter of the opening / closing body 10 around the winding shaft 30 gradually decreases, and the opening / closing body 10 is drawn out from the winding shaft 30. The suspended part is inclined leftward and downward with respect to the upper end side of the guide rail 20 (see FIG. 7B).

Then, the contact N between the suspended opening / closing body 10 and the outer peripheral surface of the opening / closing body 10 wound around the winding body 32 has a weight of the opening / closing body 10 below the contact N, the winding Due to the reaction force of the force that the shaft 30 pulls the opening / closing body 10 in the diagonally upward right direction, a diagonally downward force F2 acts.
As shown in FIG. 7B, the force F2 is a force including a component of a leftward force FL and a component of a downward force Fd.

Therefore, the winding shaft 30 moves in a direction approaching the upper extension line L of the guide rail 20 (leftward in the illustrated example) by the component of the leftward force FL.
Since the take-up shaft support device 40 is arranged in an upwardly inclined manner, the take-up shaft 30 gradually moves in a direction approaching the upper extension line L while receiving a slight resistance due to this inclination. To do.
During the movement, the portion of the opening / closing body 10 below the contact point N is maintained in a substantially vertical state so as not to slide on the inner surface of the guide rail 50.

That is, if the slide mechanism 50 is disposed substantially horizontally, the rightward force FR (see FIG. 6) that acts during winding is slightly smaller than the leftward force FL (see FIG. 7) that acts during unwinding.
Therefore, in the present embodiment, by slightly tilting the slide mechanism 50 in the direction away from the upper extension line L, the force that causes the winding shaft 30 to move to the right during winding, and the winding shaft 30 Balances the balance with the force that moves to the left when it is extended.

  6 (b) and 7 (b) illustrate the suspended portion of the opening / closing body 10 in an extremely inclined manner in order to explain the above-described operation in an easy-to-understand manner. Since the winding shaft 30 moves according to the winding diameter, the suspended portion of the opening / closing body 10 is maintained in a substantially vertical shape along the guide rail 20 during the movement.

Therefore, it is possible to prevent the suspended portion of the opening / closing body 10 from sliding on the inner surface of the guide rail 20 with the opening / closing operation of the opening / closing body 10.
Moreover, since the slat 11 constituting the opening / closing body 10 is formed in a substantially concave shape in the longitudinal section, the opening / closing body 10 when being wound around the winding shaft 30 generates vibration in the thickness direction. It can also be absorbed by the reciprocating fine movement of the movable member 41.

  Next, another example of the take-up shaft support device will be described. In addition, in the winding shaft support device shown below, portions that operate in substantially the same manner as the winding shaft support device 40 are denoted by the same reference numerals as those of the winding shaft support device 40, thereby overlapping details. Description is omitted.

The winding shaft support device 40 ′ shown in FIGS. 8 and 9 includes third guide means C in addition to the above-described winding shaft support device 40, and a stationary part (accommodating according to the illustrated example) via an attachment member 43. The case is fixed to the case 50).
The third guide means C guides the movable member 41 below the first guide means A in the approaching / separating direction while bringing the movable member 41 into contact with the fixed member 42 from the winding shaft side (left side in FIG. 8). ing.
More specifically, the third guide means C includes a third guide portion 41 f disposed on the lower side of the movable member 41 and a third engagement portion 42 d disposed on the lower side of the fixed member 42. Etc.

  The third guide portion 41f has a shape in which the four sides of the substantially rectangular plate-like metal plate elongated in the approaching / separating direction are protruded downward, and the inner surface of the protruding piece portion on the winding shaft 30 side. Is a guide surface 41f1 guided by the third roller member 42d1 of the fixed member 42, and both projecting pieces on the end side in the approaching / separating direction are the restricting portions 41d and 41d.

Further, the third engaging portion 42d is engaged with the third guide portion 41f of the movable member 41 so as to cover from the lower side, and an outer peripheral surface is provided on the distal end side with respect to the guide surface 41f1. The third roller member 42d1 is rotatably supported so as to abut.
According to the illustrated example, the third roller member 42d1 is a ball bearing having substantially the same diameter as the second roller member 42c1, and is rotated so as to roll along the guide surface 41f1 of the third guide portion 41f. The movable member 41 is moved in the approaching / separating direction.

Moreover, the attachment member 43 is a substantially rectangular plate-like member according to the illustrated example, and is fixed to the surface of the attachment member 43 in an inclined state (see FIG. 9).
That is, if this attachment member 43 is attached to a stationary part (storage case 50) in a substantially horizontal shape, the moving direction of the movable member 41 descends away from the opening / closing body 10 when it is drawn out from the winding shaft 30 and hangs down. The direction is inclined.

  According to the take-up shaft support device 40 ′ having the above-described structure, the weight of the take-up shaft 30 and the opening / closing body 10 are particularly compared, as well as the same effects as the above-described take-up shaft support device 40. Even in the case where the second guide means B is large, the third guide means C cooperates with the action of the second guide means B, and the guide surface 41f1 comes into contact with the third roller member 42d1. It can prevent more effectively that it leaves | separates to the winding shaft 30 side, or the movable member 41 inclines to the winding shaft 30 side.

  In the illustrated example, the take-up shaft support device 40 ′ has a configuration in which the tilt prevention member 41b2 (see FIG. 3) in the take-up shaft support device 40 is omitted, and even in this configuration, the movable member 41 is tilted. This can be suppressed by the second guide means B and the third guide means C, but in order to further obtain the suppression effect, it is possible to adopt a configuration in which an inclination preventing member 41b2 is added.

Further, the winding shaft support device 40a shown in FIG. 10 is provided with a roller member 41g as a second guide portion protruding upward on the movable member 41 side, and on the fixed member 42 side with respect to the roller member 41g. The second guide means B is configured by providing the second engaging portion 42e that is engaged so as to cover from the side.
The roller member 41g is supported by an upper end portion of a substantially concave member constituting the first guide portion 41b of the movable member 41, and is arranged to roll along a second engagement portion 42e described later. .
The second engaging portion 42e extends from the upper end side of the fixing member 42 and is formed so as to cover the roller member 41g from above. The roller member 41g is formed on the inner surface of the tip end side from the winding shaft side. The guide surface 42e1 is received and rolled in the approaching / separating direction.
In addition, the code | symbol 42e2 in FIG. 10 is a control part which controls the moving amount | distance of the roller member 41g facing the 2nd engaging part 42e, and is comprised integrally with the fixing member 42. FIG.
Thus, according to the take-up shaft support device 40a, substantially the same as the take-up shaft support device 40 described above, the movable member 41 is attached to the fixed member 42 due to the weight on the take-up shaft 30 side or the like. It is possible to prevent the roller member 41g serving as the second guide portion and the second engagement portion 42e from coming into contact with each other or being inclined or the like.

The winding shaft support device 40b shown in FIG. 11 is provided with a substantially concave first guide portion 42g extending in the approaching / separating direction on the fixed member 42 side, and the first guide portion 42g on the movable member 41 side. 1st guide means A is comprised by providing the roller member 41i as a 1st engaging part engaged inside the concave-shaped part.
The first guide portion 42g has an inner bottom surface of the concave portion as a guide surface 42g1 for receiving the roller member 41i and guiding it in the approaching / separating direction, and an upper side surface of the concave portion is close to the roller member 41i or The auxiliary guide surface 42g2 is in contact with the movable member 41 so as to suppress fluttering and rattling in the vertical direction on the movable member 41 side.

The take-up shaft support device 40b is provided with a second guide portion 42f protruding upward on the fixed member 42 side, and covers the second guide portion 42f from the upper side on the movable member 41 side. The second guide means B is configured by providing the roller member 41h as the second engaging portion to be engaged.
The roller member 41h is rotatably supported with respect to the movable member 41 so as to roll in the approaching / separating direction along the second guide portion 42f.
The second guide portion 42f protrudes upward from the upper tip end side of the substantially concave first guide portion 42g to form a guide surface 42f1 extending in the approaching / separating direction, and the guide surface 42f1 serves as a roller member. 41h is received from the winding shaft side.
In addition, the code | symbol 42f2 in FIG. 11 is a control part which controls the movement amount of the roller member 41h facing the 2nd guide part 42f, and is comprised integrally with the fixing member 42. FIG.
Thus, according to the take-up shaft support device 40b, the second engagement causes the movable member 41 to move away from or incline with respect to the fixed member 42 due to the weight on the take-up shaft 30 side or the like. It can be blocked by the contact between the roller member 41h as a portion and the second guide portion 42f.

Further, the winding shaft support device 40c shown in FIG. 12 constitutes the first guide means A in the same manner as the embodiment shown in FIG. 11 described above, and as a second guide portion protruding upward on the fixed member 42 side. The second guide means B is configured by providing a second engaging portion 41j that abuts the roller member 42h so as to cover the roller member 42h from above. .
The roller member 42h is rotatably supported with respect to the fixed member 42 so as to roll in the approaching / separating direction along a second engaging portion 41j described later.
The second engaging portion 41j is formed so as to extend from the upper end side of the movable member 41 so as to cover the fixed member 42, and a guide surface 41j1 for rolling the roller member 42h on the inner surface of the distal end side. Are formed in the approaching / separating direction.
Note that reference numeral 41j2 in FIG. 12 is a regulating portion that regulates the amount of movement of the movable member 41 by contact with the roller member 42h, and is configured integrally with the movable member 41.
Thus, according to the take-up shaft support device 40c, the movable member 41 is separated or inclined with respect to the fixed member 42 due to the weight on the take-up shaft 30 side or the like as the second guide portion. The roller member 42h and the second engaging portion 41j can be blocked.

  In addition, according to the winding shaft support devices 40, 40 ′, 40a, 40b, and 40c of the above-described embodiment, the configuration includes a plurality of sheet metal materials bent as illustrated, but other than the illustrated example. Shaped sheet metal materials and parts formed by casting or forging may be used in appropriate combinations.

Further, a part or all of the roller members 42b1, 42c1, 42d1, 41g, 41h, 41i, 42h and the like are elastically coated with rubber, an elastic synthetic resin material, or the like, as necessary. Also good. According to this configuration, the moving sound of the movable member 41 can be reduced.
The number of each of the roller members 42b1, 42c1, 42d1, 41g, 41h, 41i, 42h is arbitrary, but considering the smooth movement of the movable member 41, stability at the time of movement, and the like, the number may be plural. preferable.
Further, the first roller member 42b1 and the roller member 41i preferably have a higher strength than the other roller members 42c1, 42d1, 41g, 41h, or 42h in order to support a relatively large weight particularly on the winding shaft side. It is good to use a thing with a large diameter.

  The above embodiment is a preferred example in which the roller member 42b1, 42c1, 42d1, 41g, 41h, 41i, 42h, etc. are used to smoothly move the movable member 41 relative to the fixed member 42. It is also possible to adopt a mode in which part or all of the members are omitted and the movable member 41 is slid with respect to the fixed member 42.

Further, in the winding shaft support devices 40, 40 ′, 40a, 40b, and 40c, the dust-proof cover 41e may be omitted, and the dust-proof cover 41e does not interfere with the roller members 42b1 and 41i. A cover may be substituted.
As another example, both the upper end and the lower end of the dust cover 41e are fixed to the opening end of the first guide portion 41b in the approaching / separating direction, and the dust cover 41e is attached to the roller member 42b1. , 41i can be elastically deformed by being pushed, and the roller members 42b1 and 41i can be elastically restored as they move in the opposite direction.

It is a principal part longitudinal cross-sectional view which shows an example of the switchgear to which the winding shaft support structure concerning this invention is applied. It is a principal part cross-sectional view of the switchgear. It is a principal part front view which shows an example of a winding-axis support apparatus. It is the (IV)-(IV) sectional view taken on the line in FIG. It is the (V)-(V) sectional view taken on the line in FIG. It is a schematic diagram which shows sequentially the effect at the time of winding an opening-closing body on a winding shaft in (a)-(c). It is a schematic diagram which shows sequentially the effect at the time of paying out an opening-closing body from a winding shaft in (a)-(c). It is a principal part front view which shows the other examples of a winding-axis support apparatus. It is the (IX)-(IX) sectional view taken on the line in FIG. It is a principal part front view which shows the other examples of a winding-axis support apparatus. It is a principal part front view which shows the other examples of a winding-axis support apparatus. It is a principal part front view which shows the other examples of a winding-axis support apparatus.

Explanation of symbols

1: Opening / Closing Device 10: Opening / Closing Body 30: Winding Shaft 40, 40 ′: Winding Shaft Support Device 41: Movable Member 41b: First Guide Part 41b2: Tilt Prevention Member 41c: Second Guide Part 42: Fixed Member 42b: First engagement portion 42c: Second engagement portion 42b1: First roller member 42c1: Second roller member 42d: Third engagement portion A: First guide means B: Second guide means C: Third guide means

Claims (8)

In a take-up shaft support structure for an opening / closing device that is supported by a fixed member so that a movable member that supports an end of the take-up shaft is moved in an approaching / separating direction with respect to the opening / closing body when being drawn out from the take-up shaft. ,
First guide means for guiding the movable member in the approaching and separating direction while receiving the movable member from at least the lower side by the fixed member;
A winding shaft support structure for an opening / closing device, comprising: a second guide means for guiding the movable member in the approaching and separating direction while receiving the movable member from the winding shaft side by the fixed member.   The winding shaft support structure for a switchgear according to claim 1, wherein the second guide means is disposed above the first guide means. The second guide means is provided with a second guide portion protruding upward on one of the fixed member and the movable member, and covering the second guide portion from above on the other side. A second engaging portion to be engaged,
The winding shaft support structure for a switchgear according to claim 1 or 2, wherein the tip end side of the second engaging portion is brought into contact with the second guide portion in the axial direction of the winding shaft. . The second guide means includes a second roller member on one of the fixed member and the movable member,
The second roller member is arranged to move the movable member in the approaching / separating direction by rolling with the other of the fixed member and the movable member abutting the outer peripheral surface. The winding shaft support structure for a switchgear according to any one of claims 1 to 3. The first guide means is provided with a substantially concave first guide portion extending in the approaching / separating direction on one of the fixed member and the movable member, and on the other side, a concave portion of the first guide portion. A first engaging portion that engages the inside of the
The opening and closing according to any one of claims 1 to 4, wherein a dustproof cover is provided at an opening end portion of the first guide portion in the approaching and separating direction so as to shield the inside and outside of the first guide portion. Winding shaft support structure for equipment.   The dust cover is a flexible member whose upper end is fixed to the first guide part side, and is pressed by the first engaging part to bend and open the opening end part. 6. A winding shaft support structure for a switchgear according to claim 5, wherein the structure is provided so as to be in a free-hanging state and to close the open end as the engaging portion moves in the reverse direction. .   The take-up shaft support structure for an opening / closing device according to any one of claims 1 to 6, wherein the movable member is guided in a downward inclination direction away from the opening / closing body when the movable member is unwound from the take-up shaft. .   The third guide means for guiding the movable member in the approaching / separating direction while bringing the movable member into contact with the fixed member from the winding shaft side is provided below the first guide means. The winding shaft support structure for a switchgear according to any one of 7.

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