JPH0743431Y2 - One-sided adjustment mechanism for panel-connected shutter - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a panel connection type shutter in which a shutter for opening and closing a front opening is connected by a winding chain between upper and lower parts of the panel. The present invention relates to a one-sided adjustment mechanism for a panel-connected shutter that adjusts one side-sided movement.

[Conventional technology]

The conventional panel-connecting shutter A is constructed as shown in FIG. That is, the shutter case B having both sides formed by the brackets 1 is housed in the ceiling of the front opening. In this shutter case B, a notch 3 for inserting a shaft is formed at the rear side of both brackets 1 so that the shaft 2 is laterally stretched between both brackets 1.
The shaft 2 in which the bearing 4 is fitted is inserted from the notch 3 and is fastened by bolts and nuts in the mounting holes formed in the bracket 1 to rotatably support the shaft 2. A sprocket 5 is axially fitted in the shaft 2 in the shutter case B, and is suspended by a chain 7 and a sprocket of an opening / closing machine 6 mounted on a bracket 1 above the shutter case B.

A drive sprocket 8 is axially fitted to the outside of the bracket 1 on both sides of the shaft 2. And both brackets 1
A driven sprocket 9 is axially mounted on the front side of the drive chain 10, and a transmission chain 10 is suspended between the drive sprockets 8. In addition, the transmission chain 10 has a spring that tensions this chain.
A tensioner (13) is provided, and a tensioner (13) pivotally supported by a support shaft (12) is provided. Although not shown, the tensioner 13 is provided with a detection switch that responds to the swing displacement of the tensioner 13 and stops the operation of the switch 6.

Inside the both brackets 1, the driven sprocket 9 and the take-up sprocket 14 are coaxially mounted. Further, inside both brackets 1, a storage rail 15 for storing a panel 16, which will be described later, is arranged at a downward slope toward the rear side of the brackets.

On the other hand, the shutter C that opens and closes the front opening is configured as follows. Plate-shaped panels such as plate glass and acrylic 16
On the upper ends of both sides, a roller is projected through the roller shaft,
The roller shaft is fitted into the locking portion of the winding chain 17 to lock the panel 16 to the winding chain 17 at regular intervals. The panel 16 is formed into a series of shutters C by locking the panels up and down with a certain interval left and right on the winding chain 17 in the above manner. The winding chain 17 is meshed with the winding sprocket 14, and the base end of the winding chain 17 is locked in the shutter case B.

In the panel-connecting shutter A having the above-described structure, the drive sprocket 8 and the driven sprocket 9 are rotated by the forward rotation of the opening / closing machine 6 which is opened and closed as follows, and at the same time, the winding sprocket 14 is rotated. As a result, the winding chain 17 meshed with the winding sprocket 14 is wound up, so that the shutter C composed of the panel 16 connected by the winding chain 17 is moved upward to open the front opening. Each panel 16 is constructed so that the take-up sprocket 14 can be passed over by a roller shaft that is locked in a take-up chain 17, and can be vertically suspended from the storage rail 15 by supporting the rollers and stored in the shutter case B.

Further, in order to close the front opening, the take-up sprocket 14 is also reversely rotated by reversely rotating the opening / closing machine 6 in the opposite manner to the above, so that the winding chain 17 is unwound and the panel 16 is sequentially opened in the shutter case B. The frontage opening is closed while it is being drawn out.

By the way, the panel-connecting type shutter A has a problem that the panel 16 constituting the shutter C has a left-hand or right-hand side descent when viewed from the front. The cause of the one-sided descent of the panel 16 is that when the drive sprocket 8 is axially fitted to the shaft 2, it is impossible to accurately manufacture the key grooves at the left and right equal positions because the shaft 2 is long. However, there are points where manufacturing tolerances occur. In addition to this, there is an assembling error when assembling the shaft 2 by inserting a key into the key groove formed in the boss of the drive sprocket 8 and the key groove of the shaft 2.

Due to the manufacturing tolerance and the assembly error, as shown in FIG. 6, a line E (broken line) connecting the center line D (dashed line) of the shaft 2 and the tips of the left and right drive sprockets 8 is formed. Are not in the same direction, and if the tooth tip of one drive sprocket 8 (8a) is used as a reference, a phase difference of up to 1/2 pitch occurs with the tooth tip of the other drive sprocket 8 (8b). . Since a transmission chain 10 having a constant pitch is suspended between the driven sprocket 8 and the driven sprocket 9, the directions of the addendums of the take-up sprocket 14 together with the driven sprocket 9 are determined. Double winding sprocket 14
As a result, a phase difference is also generated between the tooth tips. As a result, the winding chains 17 having a constant pitch meshed with the two winding sprockets 14 have a phase difference between the left and right, that is, the link pitches of the left and right winding chains 17 are not at the same horizontal level, and the winding chains 17 have the same pitch. All the panels 16 connected between the positions will descend to either the left or the right.

In order to adjust the above-mentioned one-sided descent, for example, one winding chain 17 in which one-sided descent has occurred is moved backward by one pitch of the winding chain, that is, by pulling up the meshing position with the winding sprocket 14. , The link pitch deviation between the left and right hoisting chains 17 is adjusted to maintain the balance between the left and right panels.

[Problems to be solved by the invention]

One-sided descent of the panel is unavoidable in manufacturing and assembling the shaft and drive sprocket. However, since the conventional one-way down adjustment means can adjust only one pitch of the hoisting chain, it is impossible to adjust the hoisting chain to 1/2 pitch or less. For this reason, the one-way downward state of the panel still remains, and there is a problem that the one-way downward adjustment is not performed in order to maintain a perfect balance between the left and right sides of the panel.

[Means for solving problems]

In view of the above problems, the present invention aims to provide a one-sided adjustment mechanism for a panel-connecting type shutter, which adjusts the one-sided falling of the panel to maintain the left-right balance of the panel and completely eliminates the one-sided falling of the panel. It is what The specific means is configured as follows.

That is, the winding sprocket is independently installed inside the left and right brackets, the driven sprocket is coaxially attached to the winding sprocket, and the bearing sprocket for the drive sprocket is supported in a lateral movement adjustable manner. A connecting adjustment rod having a moving member fixed to the tip is screwed into a fixing member attached to a bracket, and the moving member is connected to the drive sprocket bearing, and a tensioner is provided below the driven sprocket and the drive sprocket. The transmission chain is tensioned, and the length of the transmission chain on the upper drive side is changed according to the movement of the shaft of the drive sprocket to rotate the driven sprocket, and the tooth position of the take-up sprocket is coaxial with the driven sprocket. The bottom of the panel-connecting shutter characterized in that the tooth position of the wound sprocket can be adjusted to be approximately the same. And an adjustment mechanism.

[Action]

By operating the one-sided adjustment mechanism of the panel connection type shutter having the above-mentioned configuration, the one-sided adjustment mechanism on the side where the one-sided falling of the panel occurs or the one-sided rising of the panel occurs, so that the shaft is cut into the cutout portion. The transmission chain, which is movable along the driving sprocket and the driven sprocket with the tensioner interposed, adjusts the tension of the transmission chain by the swinging displacement of the tensioner, and between the driving sprocket and the driven sprocket. Vary the length of the transmission chain located. In the above state, the driven sprocket and the take-up sprocket coaxial with the driven sprocket rotate by the amount of fluctuation of the transmission chain, so that the hoisting chain meshing with the take-up sprocket also has an amount proportional to the amount of movement of the shaft. By moving and pulling up the one-sided side of the panel locked to this winding chain or lowering the one-sided up side, the balance between the left and right sides of the panel is maintained, and the one-sided down of the panel is adjusted.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 of the drawings is a side view of the bracket showing a state where the one-way down adjustment mechanism is attached to the bracket, FIG. 2 is an enlarged view of the one-way down adjustment mechanism of FIG. 1, and FIG. 3 shows a one-side down state of the panel. The front view and FIG. 4 are perspective views showing the operating state of the hoisting chain by operating the one-way down adjustment mechanism.

The structure of the panel-connecting shutter according to the present invention is the same as that of the prior art, so the description of the structure will be omitted.
The same members and the same parts are given the same numbers.

The one-way downward adjustment mechanism F is configured as follows. As shown in FIG. 2, in order to mount the bearing 4 fitted on the shaft 2 to the bracket 1, four mounting holes are formed in the bracket 1, and the mounting holes are formed in the direction of the notch 3 for inserting the shaft. The holes 18 are formed in parallel with each other and are fastened with bolts 19 and nuts (not shown) for mounting the bearing 4. Then, by loosening the nut, the shaft 2 is movable in the front-rear direction (left-right direction in FIG. 2) along the notch 3 in the range where the elongated hole 18 is formed. The length of the elongated hole 18 is the sum of twice the 1/2 pitch G of the winding chain 17 and the shaft diameter length 19 'of the bolt 19.

Further, a sliding means H is connected to the bearing 4. The sliding means H is composed of a fixed portion 20, a moving portion 21, and a connection adjusting rod 22, and the angled fixed portion 20 is fixed to a fixing portion bolt.
23 and a nut 24 for a fixing portion are fixedly fastened to the bracket flange portion 1 ′ near the cutout portion 3. The angle-shaped moving portion 21 is fastened and fixed to the bearing flange portion 4'of the bearing 4 by a moving portion bolt 25 and a nut (not shown). The fixed portion 20 and the moving portion 21 are connected by a connection adjusting rod 22 which is a long bolt. The head side of the connection adjusting rod 22 penetrates the projecting piece 21 ′ of the moving part 21 and is fixed by welding, and a male screw is formed on the tip side of the projecting piece 21 of the fixed part 20.
20 'is penetrated and is tightened with an adjusting nut 27 screwed from the tip end side of the connecting adjusting rod 22.

Therefore, the one-sided descending adjusting mechanism F loosens the nuts of the bolts 19 for mounting the bearing 4 in advance at four places, and then tightens the adjusting nut 27 of the slide means H to make the connecting adjusting rod 22
However, the bearing 4 connected through the moving part 21 of the
Move in the direction of the arrow indicated by the imaginary line in the figure. By the above, the shaft 2 becomes movable along the cutout portion 3, but the movement amount thereof is a maximum of 1/2 chain pitch G when the bolt 19 is mounted at the center position of the elongated hole 18 (first position). It moves to the right in Fig. 2. The above state is shown in FIG. 2 by imaginary lines showing the shaft 2'and the drive sprocket 8'which have been moved backward by the maximum amount. The transmission chain 10 stretched between the drive sprocket 8 and the driven sprocket 9 has a transmission chain 10a above the line 0-0 that passes through the shaft centers between the two sprockets 8 and 9 and Tensioner 1 in the lower transmission chain 10b, strained at a constant regulatory distance of between
While being biased by 3, it is loosely tensioned against the upper transmission chain 10a.

By adopting such a configuration and moving the position adjustable drive sprocket 8, the driven sprocket 9 is rotated by an amount corresponding to the amount of movement.

Then, the take-up sprocket 14, which is coaxial with the driven sprocket 9, rotates, and the position of the teeth of the sprockets 14 and 14 that are individually opposed to each other can be adjusted.

An operation for adjusting the one-sided downward movement of the panel 16 by the one-sided downward adjustment mechanism F having the above-described configuration will be described together with its operation based on FIGS. 1, 3, and 4.

In FIG. 3, when the right side of the panel 16 is viewed from the front and one-sided descending amount I is temporarily generated, that is, as described above, the keyway manufacturing tolerances of the shaft 2 and the drive sprocket 8 and their manufacturing tolerances. If the chain pitch of the winding chain 17 due to an assembly error is not at the same horizontal level on the left and right in the meshing state of the winding sprocket 14,
As shown in the figure, the one-way downward adjustment mechanism F is operated. The one-way downward adjustment mechanism F is operated as described above, but the shaft 2 supported by the bearing 4 is moved backward (to the right in FIG. 1) by an amount equal to the one-way downward movement amount I of the panel 16. The shaft 2'in this state is shown by an imaginary line.

Depending on the above state, the tensioner 13 and the drive sprocket 8
The length of the transmission chain 10a located above the drive sprocket 8 and the driven sprocket 9 among the transmission chain 10 suspended between the driven sprocket 9 and the rearward movement of the shaft 2 supporting the bearing 4 is imagined. It fluctuates as shown by the line. As a result, as shown in FIG. 4, the driven sprocket 9 and the winding sprocket 14 coaxial with the driven sprocket 9 simultaneously rotate in the clockwise direction by the one-way downward amount I. At this time, the fluctuation of the transmission chain 10 is absorbed by the swing displacement of the tensioner 13, and the same tension as before is urged to the transmission chain 10 '.

Due to the above state, the take-up sprocket 14 has its one-side descending amount I
Since it only rotates, the winding chain 17 meshed with the winding sprocket 14 is pulled up in the direction of the arrow, and the panel 16 on the side locked to this is shown by an imaginary line by the amount I of one-sided descent. It will be lifted to the 16 'position. With the above operation, the link pitch of the hoisting chain 17 has the same horizontal level with no phase difference between the left and right, and the one-sided descent of all the panels 16 is adjusted.

In the above embodiment, the hoisting chain 17 on one side of the panel 16 is
Although the one-sided descent is adjusted by pulling up, the conversely, one side of the panel 16 may be raised, that is, the one-sided-up winding chain 17 may be lowered. In the above case, the operation of the one-way down adjustment mechanism F may be performed in reverse. That is, by loosening the adjusting nut 27 of the sliding means H, the connecting adjusting rod 22 moves the bearing 4 to the front of the bracket 1 (to the left in FIG. 2), and the winding sprocket 14 is moved to the arrow in FIG. It will rotate in the counterclockwise direction opposite to. As described above, the hoisting chain 17 on one side is lowered, and the panel 16 on the side that is locked to the hoisting chain 17 is activated to keep the link pitch of the hoisting chain 17 at the same horizontal level on the left and right sides. Adjust downhill. The one-way down adjustment mechanism F according to the present invention may be attached to the notches 3 of both brackets 1 in the same manner to perform one-side down adjustment, or may be attached to either one of both brackets 1. Of course.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

Since the one-way downward adjustment mechanism is attached to the panel-connected shutter, the link pitch of both hoisting chains can be adjusted to the same horizontal level easily by operating this one-side downward adjustment mechanism according to the amount of one-sided downward movement of the panel. Enable and maintain the left-right balance of the panel. That is, by the movement of the drive sprocket, the rotation of the transmission chain → the rotation of the driven sprocket → the rotation of the shaft → the rotation of the coaxial take-up sprocket → the rotation of the winding chain → the movement of the panel shaft and the panel. It has a unique configuration and operation effect of adjusting downward.

Also, since the mounting hole of the bearing that supports the shaft is a long hole, the shaft can be moved back and forth along the notch within the range of the long hole, and even if the panel descends or rises, Both adjustments are possible.

[Brief description of drawings]

FIG. 1 of the embodiment is a side view of the bracket showing a state in which the one-way down adjustment mechanism is attached to the bracket, FIG. 2 is an enlarged view of the one-way down adjustment mechanism of FIG. 1, and FIG. The front view shown in FIG. 4, FIG. 4 is a perspective view showing the operating state of the winding chain by the operation of the one-way downward adjustment mechanism, FIG. 5 is a perspective view showing the outline of a conventional panel-connected shutter, and FIG. FIG. 8 is a perspective view showing a phase difference of tooth tips between the driven sprockets. A: Panel-connecting shutter B: Shutter case, C: Shutter F: One-side down adjustment mechanism, H: Slide means 1 ... Bracket, 2 ... Shaft 3 ... Notch, 4 ... Bearing 6 ...... Switcher, 8 ...... Drive sprocket 9 …… Driven sprocket, 10 …… Transmission chain 13 …… Tensioner, 14 …… Winding sprocket 16 …… Panel, 17 …… Winding chain 18 …… Long hole

Claims (1)

[Scope of utility model registration request] Claims: 1. Revolving sprockets are independently installed inside the left and right brackets, and a sliding sprocket is axially mounted coaxially with the revolving sprockets. A bearing for a drive sprocket can be laterally adjusted on the bracket. And a connection adjusting rod having a moving member fixed to the tip thereof is screwed into a fixing member attached to the bracket, the moving member is connected to the drive sprocket bearing, and the lower portion of the sliding sprocket and the drive sprocket are connected. The transmission chain is tensioned on the drive side via a tensioner, and the length of the drive chain on the drive side is changed according to the movement of the drive sprocket shaft center to rotate the drive sprocket and wind it coaxially with the drive sprocket. It is possible to adjust the tooth position of the take-up sprocket to be substantially the same as the tooth position of the take-up sprocket arranged oppositely. Down adjustment mechanism.