JPH09145U - Panel shutter - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a chain contact guide surface of a chain guide plate arranged on the storage rail side in a tooth rotation region of a sprocket in which a chain for connecting panels is meshed, to a roller rolling surface of the storage rail. Since it is located below, there is no choice but to make the upper guide roller of the panel rolling on the roller rolling surface have a small diameter, and it is difficult for the small diameter upper guide roller to roll on the roller rolling surface. SOLUTION: A chain contact guide surface 7c of a chain guide plate 72 arranged on the storage rail 4 side in the tooth rotation region of the sprocket 3 is replaced with a roller rolling surface 4a of the storage rail 4.
It is located above.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a panel shutter that opens and closes a shutter opening / closing opening.

[0002]

[Prior art]

 FIG. 10 is a schematic front view showing a conventional panel shutter, FIG. 11 is an enlarged cross-sectional view of a panel storage box portion in FIG. 10, and FIG. 12 is an enlarged panel connecting chain in FIGS. FIG. 13 is a side view of FIG. 12, and FIG. 14 is a sectional view showing a meshing state of the panel drive system sprocket and the panel connecting chain.

First, in FIG. 10, reference numeral 1 denotes a pair of left and right guide rails arranged on both sides of a shutter opening / closing opening, and each of these guide rails 1 has a vertically long panel lifting guide opening on its opposing surface portion. It is made up of U-shaped members. A panel storage box (hereinafter referred to as a storage box) 2 is arranged above the guide rail 1.

As shown in FIG. 11, in the storage box 2, a pair of left and right panel drive system sprockets 3 located above the entrance and exit thereof, and an opening / closing device M such as a geared motor for driving the sprocket 3 in forward and reverse directions. A storage rail 4 is disposed near the upper portion of the sprocket 3, and the front end side is positioned and the rear end side is gradually inclined downward.

The sprocket 3 is meshed with a pair of left and right chains 5 that can move up and down in the guide rail 1 and move to the storage rail 4 side in the storage box 2. As shown in FIGS. 12 and 13, these chains 5 have a pair of left and right inner link plates 51 and outer link plates 52, with a chain roller 53 interposed between the inner link plates 51. A normal structure is used in which the pin P1 is connected for bending and rotation.

That is, in the chain 5 having the normal structure, only the connecting portions of the inner and outer link plates 51 and 52, which are panel mounting portions, are replaced with the long pins P2, and the long pins P2 are provided on the upper portions of both sides of each panel 6. By inserting and connecting, a plurality of upper and lower panels 6 shown in FIG. 10 are connected to each other by a chain 5 on both sides, and both sides of each panel 6 are lifted and lowered to the panel lifting guide opening of the guide rail 1. It is fitted freely. An upper guide roller R is rotatably attached to the outer end of the long pin P2 so as to roll on the storage rail 4 when the panel is stored.

A chain guide plate 7 for contacting the chain 5 meshing with the sprocket 3 and guiding the chain 5 in the meshing direction with the sprocket 3 and the meshing disengaging direction is arranged near the sprocket 3. Has been done.

As shown in FIG. 14, the chain guide plate 7 is arranged in the vicinity of the side portion of the sprocket 3 to contact and guide the inner and outer link plates 51 and 52 of the chain 5. ing.

In the above, the storage rail 4 has the roller rolling surface 4 a for rolling the upper guide roller R of the panel 6. The chain guide plate 7 also has a chain contact guide surface 70 that guides the chain 5 in the meshing direction and the meshing disengagement direction with respect to the sprocket 3 on the storage rail 4 side. Here, the positional relationship between the storage rail 4 and the chain guide plate 7 will be described. The chain guide plate 7 is arranged such that the chain contact guide surface 70 is located below the roller rolling surface 4a of the storage rail 4. Has become.

Next, the operation will be described. When all the panels 6 are extended between the guide rails 1 shown in FIG. 10 and the shutter is closed, the sprocket 3 is rotationally driven in the clockwise direction in FIG. 11 by the opening / closing machine M in FIG. The panel 6 is sequentially pulled up into the storage box 2 through the chain 5 meshing with the gear 3.

At this time, the chain 5 meshed with the sprocket 3 sequentially moves to the storage rail 4 side. In this case, the lower sides of the inner and outer link plates 51, 52 of the chain 5 come into contact with the chain guide plate 7. By being guided, the chain 5 is separated from the sprocket 3. Therefore, the chain 5 is prevented from being irregularly meshed with the sprocket 3 in advance and moves in a predetermined panel storage direction.

[0012]

[Problems to be solved by the device]

 The conventional panel shutter is configured as described above, and the chain contact guide surface 70 of the chain guide plate 7 is located below the roller rolling surface 4a of the storage rail 4. The upper guide roller R of the panel 6 must have a small diameter because of the positional relationship between the roller rolling surface 4a and the chain 5 meshing with the sprocket 3, and the small upper guide roller R rolls on the roller of the storage rail 4. There is a problem that it becomes difficult to roll on the surface 4a.

The present invention has been made to solve the above problems, and improves the positional relationship between the chain guide plate arranged on the storage rail side in the tooth rotation area of the sprocket and the storage rail to improve the panel. The objective is to obtain a panel shutter that allows the upper guide rollers of the above to smoothly roll on the storage rail.

[0014]

[Means for Solving the Problems]

 The panel shutter according to the present invention comprises a panel storage box disposed above the opening for opening and closing the shutter, a pair of left and right panel drive system sprockets disposed in the panel storage box, and a chain meshing with these sprockets. , A plurality of panels that open and close the shutter opening and closing openings in a vertical posture by the chain feeding operation by rotation of the sprocket, upper guide rollers provided on both sides of these panels, and shutter opening and closing openings. A storage rail that rotatably supports an upper guide roller of the panel that rises and sequentially passes between the sprockets to support the panel so that the panels can move laterally in a parallel posture; and the storage rail near the tooth rotation area of the sprocket. In a panel shutter equipped with a chain guide plate arranged on the rail side, The chain guide plate has a chain contact guide surface for guiding the chain in the meshing direction and the meshing disengagement direction with respect to the sprocket on the storage rail side, and this chain contact guide surface is located above the roller rolling surface of the storage rail. It is located.

[0015]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described. FIG. 1 is a sectional view of a storage box portion of a panel shutter showing an embodiment of the present invention, FIG. 2 is a side view showing an enlarged engagement portion of a panel drive system sprocket and a chain in FIG. 1, and FIG. 2 is a front view of FIG. 4, FIG. 4 is a side view of the panel drive system sprocket, FIG. 5 is a sectional view of FIG. 4, FIG. 6 is a side view of the chain guide plate, FIG. 7 is a plan view of FIG. 6, and FIG. FIG. 9 is a front view of the chain, and FIG. 9 is a side view of FIG. 8. The same or corresponding parts as in FIGS.

As shown in FIGS. 3 and 5, an annular groove 3a coaxial with the sprocket 3 is provided on the outer periphery of the sprocket 3 shown in FIG. 1 and FIG. A panel guide side chain guide plate 71 located on the guide rail 1 side and a panel storage side chain guide plate 72 located on the storage rail 4 side are arranged.

The chain guide plates 71, 72 are attached to the side wall surface of the storage box 2, and a part of each is inserted into the annular groove 3 a of the sprocket 3. Here, the configuration of the illustrated example of each of the chain guide plates 71 and 72 will be described in detail. The chain guide plates 71 and 72 are, as shown in FIGS. 7a and a thin insertion piece portion 7b, and the thick outer mounting piece portion 7a and the thin insertion piece portion 7b are integrally formed as a continuous outer edge portion as a roller contact portion (chain contact guide surface) 7c. The thin insertion piece portion 7b is formed thinner than the groove width of the annular groove 3a of the sprocket 3.

Therefore, when the thin wall insert piece 7b of the chain guide plates 71, 72 is inserted into the annular groove 3a of the sprocket 3, the thin wall insert piece 7b prevents the sprocket 3 from rotating. There is no such thing.

The chain guide plates 71, 72 are arranged on the panel feeding side and the panel housing side in the meshing region of the chain 5 on the circumference of the sprocket 3, and at that position, the thin wall insert piece portion 7b is formed as described above. The sprocket 3 is attached and fixed to the side wall of the storage box 2 while being inserted into the annular groove 3a.

In this mounted state, the roller contact portion 7c serving as the chain contact guide surface of each chain guide plate 71, 72 is located at the root portion of the tooth portion 30 of the sprocket 3 and meshes with the sprocket 3. The chain roller 53 of No. 5 (see FIG. 8) is contacted and guided.

Here, the positional relationship between the storage rail 4 and the panel guide side chain guide plate 72 will be described. In the chain guide plate 72, the roller contact portion 7c serving as a chain contact guide surface of the chain guide plate 72 has a storage rail. 4 is arranged above the roller rolling surface 4a. By thus positioning the roller abutting portion 7c of the chain guide plate 72 above the roller rolling surface 4a of the storage rail 4, the roller abutting portion 7c is positioned above the roller rolling surface 4a. The upper guide roller R of the panel 6 can be made larger in diameter than when it is positioned below, and the large-diameter upper guide roller R can easily roll on the roller rolling surface 4a of the storage rail 4.

On the other hand, in each chain 5, as shown in FIGS. 8 and 9, a panel support link plate 54 having a longer bending pitch than the standard link plates 51, 52 is installed in its panel mounting portion. A long pin P2 is attached to an intermediate portion of the panel supporting link plate 54.

Next, the operation will be described. When the sprocket 3 is rotationally driven, the panel 5 is successively transported by the vertical movement along the guide rail 1 and the horizontal movement along the storage rail 4 by the feeding operation of the chain 5 meshed with the sprocket 3.

During the continuous feeding, in the chain 5 which vertically hangs down toward the guide rail 1 side in the tooth rotation region of the sprocket 3, the chain roller 53 between the link plates on both sides of the chain 5 has the panel vertical movement side. It contacts the roller contact portion 7c of the chain guide plate 71 and is guided vertically along the teeth of the sprocket 3 inside and outside the sprocket 3 in the radial direction.

In the chain 5 that moves laterally on the side of the storage rail 4 in the tooth rotation area of the sprocket 3, the chain roller 53 of this chain roller 53 is a roller contact of the chain guide plate 71 on the side of panel horizontal movement (panel storage side). The sprocket 3 is guided in the lateral direction inside and outside in the radial direction along the teeth of the sprocket 3 by contacting the contact portion 7c.

As described above, the chain 5 is reliably and smoothly guided by the chain guide plates 71 and 72 in the tooth rotation region of the sprocket 3 in the meshing direction and the meshing disengaging direction of the chain 5 with respect to the sprocket 3. Therefore, the irregular meshing of the chain 5 with the sprocket 3 can be prevented in advance. Further, since the chain guide plates 71 and 72 extend inward and outward in the radial direction of the sprocket 3 (inside and outside of the sprocket 3) in the tooth rotation region of the sprocket 3, the sprocket 3 and the chain guide plate are not shown. The chain 5 is also prevented from being caught between 71 and 72. Therefore, even a chain having a panel supporting link plate 54 with a long bending pitch can always smoothly pass through the sprocket 3.

[0027]

[Effect of the invention]

 As described above, according to this invention, the chain contact guide surface of the chain guide plate arranged on the storage rail side in the tooth rotation area of the sprocket is located above the roller rolling surface of the storage rail. The diameter of the upper guide roller of the panel can be increased, and the large diameter of the upper guide roller can easily roll on the roller rolling surface of the storage rail. Therefore, the panel can be smoothly moved along the storage rail. is there.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a storage box portion of a panel shutter showing an embodiment of the present invention.

FIG. 2 is an enlarged side view showing a meshing portion between a panel drive system sprocket and a chain in FIG.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a side view of a panel drive system sprocket.

FIG. 5 is a sectional view of FIG. 4;

FIG. 6 is a side view of the chain guide plate.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a front view of a panel connecting chain.

FIG. 9 is a side view of FIG.

FIG. 10 is a schematic front view showing a conventional panel shutter.

11 is an enlarged cross-sectional view showing a panel storage box portion in FIG.

FIG. 12 is an enlarged front view showing the panel connecting chain in FIGS. 10 and 11.

FIG. 13 is a side view of FIG.

FIG. 14 is a cross-sectional view showing a meshed state of a panel drive system sprocket and a panel connecting chain.

[Explanation of symbols]

 1 Guide rail (shutter opening / closing) 2 Panel storage box 3 Sprocket 4 Storage rail 4a Roller rolling surface 5 Chain 6 Panel 7c Roller contact part (chain contact guide surface) 72 Chain guide plate

Claims (1)

[Utility model registration claims] 1. A panel storage box disposed above an opening for opening and closing a shutter, a pair of left and right panel drive system sprockets disposed in the panel storage box, a chain meshing with these sprockets, and a sprocket of the sprocket. A plurality of panels that open and close the shutter opening and closing openings in a vertical position by the feeding operation of the chain by rotation, upper guide rollers provided on both sides of these panels, and the shutter opening and closing openings are raised to move the space between the sprockets. A storage rail that rotatably supports the upper guide roller of the panel that sequentially passes through the panel and supports the panel so that the panel can move laterally in a parallel posture; and a chain that is arranged on the storage rail side near the tooth rotation region of the sprocket. In the panel shutter having a guide plate, the chain guide plate is And a chain contact guide surface that guides the chain in a meshing direction and a meshing disengagement direction with respect to the sprocket, and the chain contact guide surface is located above the roller rolling surface of the storage rail. And panel shutter.