JP2006046029A - Roller guide device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller guide device offering a simple construction and an easy adjustment which is capable of preventing any rattling of a moving body for a shutter or the like having a movable shaft center. <P>SOLUTION: Freely rotatable rollers 21 are installed to moving bodies 15, 16. The moving bodies 15, 16 can be moved by guiding them along guide rails 13 in the roller 21 guide device 100. A roller 21 is extrapolated in a swivel manner to an outer peripheral circle; bolts inserted to inner through holes in axis direction are penetrated through the moving bodies 15, 16 and tightened with nuts thereby making the device 100 being equipped with cylindrical roller supporting collars which are fixed to or made releasable from the moving bodies 15, 16; and the center of the outer peripheral circleof the roller supporting collars is decentered from the center of the through hole. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a roller guide device that guides the movement of a moving body by rolling a roller provided on the moving body on a guide rail, and in particular, an axial movement in which the moving body is moved by the rotation of a shaft. It is suitable for use in an opening / closing device such as a shutter.

  There is a roller guide device as means for guiding a movable body along a guide rail by providing a rotatable roller on the movable body and rolling the roller on the guide rail. This type of roller guide device is, for example, an opening / closing body that is expanded or reduced in diameter by moving a moving body that supports a winding shaft following the winding / rewinding of an opening / closing body such as a shutter curtain. It can be suitably used for an opening / closing device such as an axis moving shutter that makes the winding / rewinding position of the shaft constant.

  The shutter curtain (opening / closing body) provided at the opening of the doorway or the window is wound up and rewound at the upper end side by a winding shaft provided above the opening. Therefore, the outer diameter of the shutter curtain wound around the shaft is different between rewinding and winding. Both sides of the shutter curtain that is wound and unwound from the shaft and moves up and down are guided by lifting guide rails that are provided on the left and right sides of the opening. The upper end (intrusion entrance) of the elevating guide rail is fixed to the building frame. For this reason, if the outer diameter of the winding changes due to the winding / unwinding of the shutter curtain, the shutter curtain between the elevating guide rail entrance and the wound body is not arranged vertically, and the winding / rewinding is not performed. It will not be smooth.

  In the shaft moving shutter, a guide rail is arranged in a substantially horizontal direction, and a moving body that rotatably supports at least one end of the winding shaft is guided by the guide rail. Therefore, the winding / rewinding position of the opening / closing member whose diameter is expanded / reduced can be made constant by moving the moving body following the winding / rewinding of the opening / closing member.

  In the roller guide device applied to the above-described shaft moving shutter, two sets of rollers that sandwich the guide rail from above and below are provided on the moving body on both ends in the extending direction of the guide rail. However, when the take-up shaft is supported on one end side of the moving body in the guide rail extending direction, the moment acting on the other end side of the moving body in the guide rail extending direction is changed by the opening / closing body that is enlarged or reduced in diameter. To do. Under these circumstances, if the pair of upper and lower rollers on the other end side in the guide rail extending direction does not securely clamp the guide rail, that is, if there is a gap between the guide rail and the roller, the movement will occur. There is a risk of rattling when the body is moved, which may hinder high-speed and smooth winding and rewinding of the opening / closing body. On the other hand, when the moving body is assembled, making it possible to move and adjust the mounting position of the roller of the roller guide device has a complicated structure and may be complicated to adjust.

  The present invention has been made in view of the above circumstances, and provides a roller guide device having a simple structure and easy adjustment, and an object thereof is to prevent rattling of a moving body in an opening / closing device such as an axis moving shutter. To do.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
In the roller guide device 100 according to the first aspect of the present invention, the movable bodies 15, 16 are provided with a rotatable roller 21, and the rollers 21 are rolled on the guide rail 13, whereby the movable bodies 15, 16 are moved. A roller guide device 100 for guiding movement along the guide rail 13,
The roller 21 is rotatably inserted around the outer circumference circle, and the bolt 69 inserted through the inner hole 61a penetrating in the axial direction passes through the moving bodies 15 and 16 and is tightened with a nut, whereby the moving body 15 is inserted. , 16 is provided with a cylindrical roller support collar 61 that can be fixed / unfixed to / from
The center 63 of the outer peripheral circle of the roller support collar 61 and the center 65 of the inner hole 61a are eccentric.

  In this roller guide device 100, the center 63 of the outer circumference circle of the roller support collar 61 and the center 65 of the inner hole 61a are eccentric, so that when the roller support collar 61 is rotated, it is extrapolated to the outer circumference circle. The roller 21 is swung around the center 65 of the inner hole 61a as a swing center, and can approach and separate from the guide rail 13. Further, by changing the amount of rotation caused by the swing of the roller support collar 61, the pressing force of the roller 21 against the guide rail 13 can be varied.

The roller guide device 100 according to claim 2, wherein the guide rail 13 is arranged extending in a substantially horizontal direction,
The moving bodies 15 and 16 are characterized in that at least one end of a shaft 23 in a substantially horizontal direction that winds and rewinds the opening / closing body 5 is rotatably supported.

  In the roller guide device 100, the guide rail 13 is arranged in a substantially horizontal direction, and movable bodies 15 and 16 that rotatably support at least one end of a shaft 23 for winding and rewinding the opening / closing body 5 are provided on the guide rail 13. Be guided by. That is, the roller guide device 100 is applied to the axis moving shutter 200. Therefore, for example, the moving body 15, 16 is moved by following the winding / rewinding of the opening / closing body 5 in which a plurality of slats are connected in the vertical direction, whereby the diameter of the opening / closing body 5 is increased or decreased. The winding / rewinding position is substantially constant.

In the roller guide device 100 according to claim 3, the moving bodies 15 and 16 are provided with two sets of rollers 17 and 21 sandwiching the guide rail 13 from above and below on the end side in the extending direction of the guide rail 13. And
When the shaft 23 is supported on one end side of the moving bodies 15 and 16 in the guide rail extending direction,
The lower roller 21 on the other end side in the guide rail extending direction of the movable bodies 15, 16 can be fixed / released to / from the movable bodies 15, 16 via the roller support collar 61. To do.

  In this roller guide device 100, the shaft 23 is supported on one end of the moving body, so that a downward load is applied to one end of the moving body, and the upper roller 17 on the other end of the moving body tries to float from the guide rail 13. To do. On the other hand, since the lower roller 21 on the other end side of the movable body can be adjusted, when the lower roller 21 is pressed against the guide rail 13, the upper roller 17 on the other end side of the movable body is guided. It can come into contact with the rail 13. As a result, the upper and lower rollers 17 and 21 on the other end side of the movable body can hold the guide rail 13 in the vertical direction.

  According to the roller guide device of the first aspect of the present invention, the roller that rolls on the guide rail is fixed to the moving body via the roller support collar, and the center and inner hole of the outer peripheral circle of the roller support collar When the moving body is assembled, the roller support collar can be rotated to allow the roller extrapolated to the outer circumference circle to approach the guide rail. By performing the fastening according to, the setting can be completed very easily by bringing the roller into contact with the guide rail without a gap. Further, by changing the rotation amount of the roller support collar, the pressing force of the roller against the guide rail can be finely adjusted. As a result, it is possible to prevent the roller from separating from the guide rail, and to enable stable traveling of the moving body without rattling.

  According to the roller guide device of the second aspect, the guide rail is arranged in a substantially horizontal direction, and at least one end of the winding shaft is rotatably supported by the moving body. Thus, the moving body is moved, and the winding / rewinding position of the opening / closing body to be expanded / reduced can be made substantially constant. As a result, the moving body can be moved without rattling, and the opening / closing body can be wound and unwound smoothly at high speed.

  According to the roller guide device of the third aspect, the lower roller on the other end side in the guide rail extending direction of the movable body can be fixed / unfixed to / from the movable body via the roller support collar. Is supported on one end of the moving body, so that the upper roller on the other end of the moving body, which is about to float from the guide rail, presses the adjustable lower roller against the guide rail, thereby contacting the guide rail. It becomes possible. As a result, the upper and lower rollers on the other end of the moving body securely hold the guide rail in the up-and-down direction, enabling the moving body to move without rattling, and fast and smooth winding and unwinding of the opening / closing body. Can be realized.

DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a roller guide device according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a main part of a shaft moving shutter that is an opening / closing device equipped with a roller guide device according to the present invention, FIG. 2 is a perspective view of a moving body mechanism that supports a winding shaft, and FIG. 3 is a side view of FIG. 4 is a perspective view of the roller support collar with a part cut away, FIG. 6 is a front view of the roller support collar, and FIG. 7 is a cross section before the roller support collar is rotated. 8 and 8 are front views of the roller guide device shown in FIG. 7 viewed from the bolt axis direction.

First, a basic configuration of the shutter device 200 on which the roller guide device 100 according to the present embodiment is mounted will be described.
A wall opening 3 is provided in a wall 1 of a housing such as a building, and a storage portion 7 for storing the winding mechanism 4 is attached above the opening on the indoor side surface of the wall 1. The winding mechanism 4 winds up a slat curtain 5 as an opening / closing body. The storage portion 7 is formed in a rectangular parallelepiped shape by a frame body 9 made of, for example, a channel material, and an exterior panel (not shown) is attached to each surface. The frame body 9 has an upper frame 11 extending perpendicularly to the wall 1 and a lower frame 13 as a guide rail on each of the left and right sides of the opening 3 in the frontage direction.

  Between the upper frame 11 and the lower frame 13, movable plates 15 and 16 that are rectangular plate-like moving bodies are arranged. Two pairs of rolling roller pairs 17, 17 that roll on the upper surface of the lower frame 13 are spaced apart from each other in the longitudinal direction of the lower frame 13. Among these, for example, a coupling plate 19 is attached to the shaft of a pair of rolling roller pairs 17, and a lower roller 21 that sandwiches the lower frame 13 with the rolling roller pair 17 is rotatable at the lower end of the coupling plate 19. Is attached. That is, the movable plates 15 and 16 are movable in a direction perpendicular to the wall 1 which is the extending direction of the lower frame while the lower frame 13 is sandwiched from above and below by the rolling roller pair 17 and the lower roller 21. Is provided.

  The pair of movable plates 15 and 16 are rotatably supported at both ends of a shaft 23 that extends parallel to the wall 1 and extends in the horizontal direction. An opening / closing machine 27 having a drive motor is connected to one end of the shaft 23 via a gear box 25 which is a reduction gear. The opening / closing machine 27 and the gear box 25 are supported and fixed to the movable plate 16. Therefore, when the opening / closing machine 27 is driven, its rotation is decelerated by the gear box 25, and the shaft 23 is driven to rotate in the winding / unwinding direction. Winding plates 29 and 29 for winding the slat curtain 5 are fixed to both ends of the shaft 23.

  Guide rails 31 for guiding the slat curtain 5 are attached to both sides of the opening 3 in the frontage direction. Each of the winding plates 29 and 29 is located above the extension line of the guide rail 31. The winding plates 29 and 29 have a step portion 33 having a height difference in the radial direction at a part of the outer peripheral edge. The height of the stepped portion 33 is set to be substantially equal to the thickness of a later-described slat end part constituting the slat curtain 5.

  The upper end of the slat curtain 5 is coupled to the stepped portion 33 of the winding plates 29 and 29 via a connection fixing member (not shown). The slat curtain 5 is wound around the winding plates 29 and 29 in a spiral shape to open the opening 3, and is drawn out from the winding plate 29 to close the opening 3.

  Small sprockets (not shown) are fixed to both ends of the shaft 23 that is outside the winding plates 29 and 29. Further, a large sprocket 41 is rotatably provided on the movable plates 15 and 16 below the small sprocket, and a chain 43 is stretched between the large sprocket 41 and the small sprocket. A moving sprocket 47 is fixed to a rotating shaft 45 that rotatably supports the large sprocket 41 on the movable plates 15 and 16. The movable plates 15 and 16 are provided with driven sprockets 49 so as to be rotatable away from the moving sprockets 47. A moving chain 51 is stretched between the moving sprocket 47 and the driven sprocket 49, and a part of the moving chain 51 is fixed to the lower frame 13.

  Accordingly, when the opening / closing machine 27 is driven and the shaft 23 rotates through the gear box 25, the large sprocket 41 rotates through the chain 43, and the moving sprocket 47 is rotated by the rotation of the large sprocket 41. As a result, the moving sprocket 47 moves while rolling on the moving chain 51, a part of which is in a fixed state, and accordingly, the movable plates 15 and 16 reciprocate in the extending direction of the lower frame 13. It has come to be.

  When the shaft 23 is rotated in the winding direction, for example, the slat curtain 5 is wound around the winding plates 29 and 29, and the outer diameter of the slat curtain 5 is increased. That is, the outer diameter of the slat curtain 5 is increased by one rotation of the shaft 23. In the slat curtain 5, the ratio of the number of teeth of the small sprocket and the large sprocket 41 is set to a predetermined value so that the outer diameter position matches the squeezed portion of the guide rail 31 as the outer diameter increases. That is, the movable plates 15 and 16, that is, the shaft 23 are moved by an increase in the outer diameter.

  Thus, since the shutter device 100 is provided with the axis moving mechanism for moving the shaft 23, the slat curtain 5 is always moved up and down substantially vertically to enable high-speed opening and closing. The winding plates 29 and 29 wind only the slat end parts constituting the slat curtain 5 and wind the slat curtain 5 only at the left and right edges. Therefore, the slats 59 do not touch each other, and contact damage to the front and back surfaces of the slats 59 does not occur. In addition, since the slat end parts made of synthetic resin are wound and rewound around the winding plates 29, 29, the contact sound does not increase, and a soft resin (buffer layer) is not provided on the back side of the slat end parts. Since it is provided, the contact sound at the time of opening and closing can be reduced, and the opening and closing operation in which the operation sound is suppressed is possible.

  Here, roller guide devices 100, 100 are provided on the movable plates 15, 16, respectively. The roller guide device 100 is substantially constituted by a movable plate 15, a lower roller 21, a roller support collar 61, a bolt 69, a ball bearing 67, and a washer 73.

In addition, since the roller guide apparatus 100 provided in the movable plate 15 and the movable plate 16 is the same, the roller guide apparatus 100 provided in the movable plate 15 will be described below as an example.
As described above, the lower plate 21 is rotatably provided on the movable plate 15, and the movable plate 15 rolls the lower roller 21 in contact with the lower frame 13, in this embodiment, the lower surface of the lower frame 13. As a result, it moves along the lower frame 13.

  Here, the lower roller 21 is fixed to the coupling plate 19 via a roller support collar 61 shown in FIG. The roller support collar 61 has an inner hole 61a penetrating in the axial direction, and is formed in a cylindrical shape including a large outer diameter portion 61b and a small outer diameter portion 61c. As shown in FIG. 6, the roller support collar 61 is formed by decentering the center 63 of the outer peripheral circle of the large outer diameter portion 61b and the center 65 of the inner hole 61a by a dimension d. Accordingly, the thickness from the small outer diameter portion 61c to the inner hole 61a is as small as t1 in the direction in which the center 65 is offset and as large as t2 on the opposite side.

  As shown in FIG. 7, the roller support collar 61 supports the lower roller 21 by extrapolating a ball bearing 67 to a small outer diameter portion 61c and further fitting an inner diameter hole 21a of the lower roller 21 to the outer periphery thereof. To do. Then, the bolt 69 is inserted into the inner hole 61a, and as shown in FIG. 4, a nut 71 is screwed onto the tip of the bolt 69 penetrating the coupling plate 19. The ball bearing 67 is clamped between the inner ring 67 a and the stepped portion 75 via the washer 73 by tightening the bolt 69. In this way, the lower roller 21 is attached to the coupling plate 19 via the ball bearing 67 and the roller support collar 61 so as to be fixed and unfixable.

  Therefore, when the roller support collar 61 is rotationally arranged so that the center 63 of the large outer diameter portion 61b is on the lower side with respect to the center 65 of the bolt 69, as shown in FIG. The thickness t2 is disposed on the lower side, and a gap δ is formed between the lower frame 13 and the lower roller 21.

Next, the operation of the roller guide device 100 configured as described above will be described.
FIG. 9 is a cross-sectional view after rotation of the roller support collar, and FIG. 10 is a front view of the roller guide device shown in FIG. 9 viewed from the bolt axis direction.
In the roller guide device 100, the center 63 of the outer circumferential circle of the roller support collar 61 and the center 65 of the inner hole 61 a are eccentric, so that when the roller support collar 61 is rotated, the outer circumferential circle (small outer diameter) The lower roller 21 extrapolated to the portion 61c) is swung about the center 65 of the inner diameter hole 51a as a swing center, and can approach and separate from the lower frame 13. Thus, the roller support from the state where the thickness t2 portion shown in FIGS. 7 and 8 is disposed on the lower side to the state where the thickness t2 portion is disposed on the upper side as shown in FIGS. By swinging the collar 61, the gap δ between the lower frame 13 and the lower roller 21 is eliminated.

  Further, by changing the amount of rotation caused by the swing of the roller support collar 61, the pressing force of the lower roller 21 against the lower frame 13 can be varied.

  In the present embodiment, an example is shown in which the roller support collar 61 is swung so that the thickness t2 portion moves about 180 ° from the lower side to the upper side, that is, the maximum movement amount is shown. Although described, the lower roller 21 is preferably in contact with the lower frame 13 with a swing amount smaller than 180 °, that is, the gap δ between the lower frame 13 and the lower roller 21 is eliminated. To do.

  In the shaft moving shutter 200, the lower frame 13 is disposed in a substantially horizontal direction, and the movable plate 15 that rotatably supports at least one end of the winding shaft 23 is guided by the lower frame 13. That is, the roller guide device 100 is applied to the axis moving shutter 200. Therefore, when the movable plate 15 is moved in accordance with the winding / rewinding of the slat curtain 5, the winding / rewinding position of the slat curtain 5 to be expanded / reduced becomes substantially constant.

  And in this Embodiment, when the winding shaft 23 is supported by the guide rail extension direction one end side (left end side of FIG. 3) of the movable plate 15, the guide rail extension direction other end side of the movable plate 15 is provided. The lower roller 21 (on the right end side in FIG. 3) can be fixed to and released from the movable plate 15 via the roller support collar 61. In this case, the winding shaft 23 is supported on one end of the movable plate 15 so that a downward load is applied to one end of the movable plate 15 and the upper roller 17 on the other end of the movable plate 15 is lifted from the lower frame 13. I will try. On the other hand, in this embodiment, the lower roller 21 on the other end side of the movable plate 15 can be adjusted. Therefore, when the lower roller 21 is pressed against the lower frame 13, the other end side of the movable plate 15 is provided. The upper roller 17 can come into contact with the lower frame 13. Accordingly, the upper and lower rollers 17 and 21 on the other end side of the movable plate 15 can sandwich the lower frame 13 from the vertical direction.

  According to the roller guide device 100 described above, the lower roller 21 that rolls on the lower frame 13 is fixed to the movable plate 15 via the roller support collar 61, and the center 63 of the outer peripheral circle of the roller support collar 61 is centered. Since the center 65 of the inner hole 61a is eccentric, when the movable plate 15 is assembled, the roller support collar 61 is rotated to bring the lower roller 21 extrapolated to the outer circumference circle closer to the lower frame 13. By performing the fastening with the bolt 69 and the nut 71 after the contact, the setting can be completed by bringing the lower roller 21 into contact with the lower frame 13 without any gap at a very low production cost. Then, by changing the rotation amount of the roller support collar 61, the roller pressing force against the lower frame 13 can be finely adjusted. As a result, it is possible to prevent the roller from separating from the lower frame 13 and to enable a stable traveling of the moving body without rattling.

  Further, since the lower frame 13 is arranged in a substantially horizontal direction and at least one end of the winding shaft 23 is rotatably supported by the movable plate 15, the movable plate 15 is driven by winding and unwinding the slat curtain 5. The winding / rewinding position of the slat curtain 5 that is moved and expanded / reduced in diameter can be made substantially constant. As a result, the movable plate 15 can be moved without rattling, and the slat curtain 5 can be wound and unwound smoothly at high speed.

  Further, the lower roller 21 on the other end side of the movable plate 15 in the guide rail extending direction can be fixed and released from the movable plate 15 via the roller support collar 61, so that the winding shaft 23 is movable. The upper roller 17 on the other end side of the movable plate 15 that is about to float from the lower frame 13 by being supported on one end side presses the adjustable lower roller 21 against the lower frame 13, thereby Abutment is possible. As a result, the upper and lower rollers 17 and 21 on the other end side of the movable plate 15 securely hold the lower frame 13 from the vertical direction, and the movable plate 15 can be moved without rattling, and the slat curtain 5 can be moved at high speed and smoothly. Winding and rewinding can be realized.

  In the above-described embodiment, the example in which the upper frame 17 and the lower roller 21 are sandwiched from the upper and lower directions with respect to the lower frame 13 has been described. However, as the guide rails of the movable plates 15 and 16, Between the upper frame 11 and the lower frame 13, the rollers may be in contact with each other and roll between the opposing surfaces of the lower surface of the upper frame 11 and the upper surface of the lower frame 13. An upper roller having the same configuration as that of the lower roller 21 is configured at the upper edge portion of the movable plates 15 and 16, and a lower roller having the same configuration as that of the upper roller 17 is configured at the lower edge portion of the movable plates 15 and 16. Thus, it may be configured to be movable between the upper frame 11 and the lower frame 13. In the case of such a configuration, the upper and lower rollers are arranged so as to widen between the upper and lower frames 11 and 13, and the same effect as described above can be obtained.

It is a principal part perspective view of the axial center moving shutter which mounts the roller guide apparatus which concerns on this invention. It is a perspective view of the moving body mechanism which supports a winding shaft. FIG. 3 is a side view of FIG. 2. It is an AA arrow line view of FIG. It is the perspective view which notched a part of roller support collar. It is a front view of a roller support collar. It is sectional drawing before roller support collar rotation. It is the front view which looked at the roller guide device shown in Drawing 7 from the direction of a bolt axis. It is sectional drawing after roller support collar rotation. It is the front view which looked at the roller guide device shown in Drawing 9 from the direction of a bolt axis.

Explanation of symbols

5 ... Opening and closing body (slat curtain)
13 ... Guide rail (lower frame)
15, 16 ... moving body (movable plate)
21 ... Roller (lower roller)
23 ... Shaft (winding shaft)
61 ... Roller support collar 61a ... Inner hole 63 ... Center of outer circumference circle 65 ... Center of inner hole 69 ... Bolt 71 ... Nut 100 ... Roller guide device

Claims (3)

A roller guide device that provides a movable roller on a movable body and guides the movement of the movable body along the guide rail by rolling the roller on the guide rail.
The roller is rotatably inserted around the outer circumference circle, and the bolt inserted into the inner hole penetrating in the axial direction passes through the moving body and is tightened with a nut to fix / unfix the moving body. It has a cylindrical roller support collar that has become possible,
The roller guide device characterized in that the center of the outer circumference of the roller support collar and the center of the inner hole are eccentric. The guide rail is arranged extending in a substantially horizontal direction,
The roller guide device according to claim 1, wherein the movable body rotatably supports at least one end of a substantially horizontal shaft that winds and rewinds the opening / closing body. The moving body is provided with two sets of rollers sandwiching the guide rail from above and below on the end side in the extending direction of the guide rail,
When the shaft is supported on one end side of the moving body in the guide rail extending direction,
The roller guide according to claim 2, wherein a lower roller on the other end side in the guide rail extending direction of the movable body can be fixed / released to / from the movable body via the roller support collar. apparatus.

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