JP2020103117A - Stop device for film winding/rewinding control device - Google Patents

Abstract

To provide a stop device for a film winding/rewinding control device for avoiding breakage of a rotary shaft and a screw due to reverse rotation of the rotary shaft and movement of a slider to a position where the slider cannot move further, when a wiring error occurs or a control device is laterally reversely arranged on a trough.SOLUTION: A stop device for a film winding/rewinding control device 1 comprises: a rotary shaft 22 comprising a screw for winding/rewinding of a film for a house; a driven side second bevel gear 21 provided on the rotary shaft; a driving side first bevel gear 20 engaged to the second bevel gear; a drive shaft on which the first bevel gear is provided; a slider 23 which engages to the screw of the rotary shaft and moves; a guide rod 2300 for guiding a slider; and limit switches 28, 29 with which the slider collides. The stop device forms stop means on one end part which is provided on the rotary shaft, and movement of the slider is regulated when the slider reaches the stop means.SELECTED DRAWING: Figure 5-1

Description

The present invention relates to a stop device for a film winding/rewinding control device.

According to Japanese Patent Application Laid-Open No. 2016-086691 proposed by the present applicant, in the film winding/rewinding control device that opens and closes the film in the valley portion of the house, the opening adjusting portion casing includes the rotating shaft, the slider (dog), It consists of two guide rods, two screw shafts, and first and second limit switches. When the rotating shaft rotates, the slider moves horizontally. When the film is stopped at the first or second limit switch, the film is in the normal state with the opening (opening of the trough) at the desired opening. In the conventional form in which the screw is formed over the entire length of the rotary shaft, it causes a failure in the following cases. For example, if there is a wiring mistake, or if the control device is installed upside down in the valley, the rotary shaft will rotate in reverse and the slider will move to a position where it will not move anymore, the lock will be applied, and the load on the rotary shaft will be considered. To be Failures caused by this load include, for example, damage to the rotating shaft, screws, and the like.

In order to prevent such damage or the like, this time, for example, a part (end) of the rotary shaft is made screwless (for example, it is an example of a stopping means for stopping the movement of the slider). By adopting this structure, for example, even under the above-mentioned wiring mistake or the like, the slider idles at the screwless portion (round shaft), and the load is not applied to the rotary shaft, and damage is avoided. Alternatively, it is not necessary to attach a safety switch.

When the prior art is examined based on this improvement plan, for example, the prior literature is searched with a keyword such as a limit switch and a dog (slider) for ventilation of a house or the like, but this type of slider is provided with an idle portion. However, there is no prior document that has a configuration in which a rotary shaft is provided with a round shaft.

In view of the above, in the field outside the house, Japanese Patent Laid-Open No. 2003-115236 can be cited as a document relating to a rotary shaft having a round shaft. According to the present invention, in [0007] of the specification, a non-screwed portion extending from the rotary screw shaft is formed on the tip end side of the gear body, and the non-screwed portion is rotated and It is described that it is provided so that it can be moved in and out freely. However, there is no description about its purpose and configuration.
JP, 2016-086691, A JP, 2003-115236, A

In the film winding/rewinding control device, in the conventional form in which the screw is formed over the entire length of the rotating shaft, it causes a failure in the following cases. That is, if the control device is installed upside down in the wiring mistake or in the valley, the rotary shaft rotates in the reverse direction, the slider moves to a position where it does not move further, the lock is applied, and the load is applied to the rotary shaft. Conceivable. Failures caused by this load include damage to the rotating shaft, screws, and the like. The improvement regarding the damage of the rotating shaft, the screw, etc. was not sufficient.

In order to achieve the object of the present invention and solve the conventional problems, claims 1 to 4 are proposed.

According to the invention of claim 1, the rotary shaft provided in the opening adjusting portion casing such as the valley portion or the valley portion provided in the side portion of the house, the driven side rotating body provided in the rotating shaft, and the driven side driven body. A main body-side rotary body that is locked to the rotary body, a drive shaft provided with the main body-side rotary body, a slider that moves (moves forward and backward) by engaging with a screw of the rotary shaft, and a guide rod for guiding the slider. In the stop device of the film winding/rewinding control device, which comprises a forward/backward limit switch for stopping the slider,
The stopping device is characterized in that the rotating shaft has a stopping means at least at one end thereof, and the movement of the slider is restricted when the slider reaches the stopping means. It is a stop device of the control device.

Therefore, according to claim 1, when the control device is installed upside down in the wiring mistake or in the valley, the rotary shaft rotates in the reverse direction, the slider moves to a position where it does not move any more, and the lock is applied, and the load is applied to the rotary shaft. There is a practical benefit of naturally avoiding an example in which the load is applied and avoiding a failure due to this load, for example, damage to the rotating shaft, the screw and the like.

According to a second aspect of the present invention, the stopping means is a shaft portion of the rotary shaft, which is provided with at least one end portion and does not include a screw,
This is a stopping device for the film winding/rewinding control device characterized in that the movement of the slider is regulated when the slider reaches the shaft.

Therefore, in the second aspect, it is possible to achieve the features and effects of the first aspect, and to achieve this object, it is possible to provide a stopping means having an optimum structure and an improved rotary shaft.

A third aspect of the invention is a stopping device for a film winding/rewinding control device, wherein the shaft portion is a round shaft having a smaller diameter than at least the outer diameter of the screw.

Therefore, in claim 3, there is a merit that the features and effects of claim 2 can be achieved, and in order to achieve this object, a shaft part having an optimum structure and a structure of a support part of the slider can be disclosed.

According to a fourth aspect of the present invention, there is provided a stopping device for the film winding/rewinding control device, wherein an axial slit is provided on the outer peripheral surface of the round shaft.

Therefore, in claim 4, there is a merit that the features and effects of claim 3 can be achieved, and in order to achieve this object, it is possible to provide a round shaft having an optimum structure and an improved round shaft.

A bird's-eye view of the house's trough (valley)/side (side) and gable/side, as well as the winding/rewinding control device (control device) Scaled front view with the control unit for the valley and the vertical rod installed in the house Front view of the main part of FIG. Scaled front view of the side control unit and vertical rod installed in the house Front view of the main part of FIG. Side view of the control device Cross-sectional view of the left control device in plan view Sectional drawing which looked at the principal part of FIG. Side view showing an example of a rotating shaft and its shaft Side view showing a rotating shaft and another example of the shaft Cross-sectional view of the right control device in plan view Sectional drawing which looked at the principal part of FIG. Side view showing an example of a rotating shaft and its shaft Side view showing a rotating shaft and another example of the shaft In a conventional structure, a rotary shaft provided with a screw is penetrated through a wall of an opening adjusting unit casing such as a valley portion, and a nut is provided near the center of the rotary shaft, the damaged rotary shaft, and An enlarged schematic diagram of an example of a nut (stop) on the rotating shaft on the damaged side

Hereinafter, a preferred embodiment of the present invention will be described.

1, FIG. 2A, FIG. 2B, and FIG. 4 to FIG. 6-4, the control device 1 (right and left side control unit 1a and control unit 1b) installed upright in the valley portion A2 of the house A. Is provided. An outer shell of the control device 1 includes a motor casing 100, a reduction casing 101 adjacent to the motor casing 100, front sides 100b and 101c of the motor casing 100 and the reduction casing 101 (the end surface A1 of the house A in FIG. 1). (When mounted on), the casing for adjusting the opening of the valley and the like (referred to as the casing of the adjusting unit that regulates/controls the opening position of the valley/side portion). However, in the opening adjusting portion casing 102 such as the valley portion, a direction changing portion casing chamber 102a that is partitioned is provided.

On the lower side 101a of the deceleration casing 101, a vertical rod support portion 3 to which an extendable and retractable vertical rod 2 (supporting member) which is erected on the end face A1 of the house A is attached is formed.

Hereinafter, the linkage of the motor casing 100, the deceleration casing 101, and the opening adjusting portion casing 102 such as a valley and the components housed individually will be described. The output shaft 11 of the motor 10 provided in the motor casing 100 is the motor casing. It projects from the lower side 100a of 100 and reaches the back side 101b (inside) of the reduction casing 101. Then, on the rear surface side 101b of the reduction gear casing 101, a helical gear 12 that meshes with the helical gear 11a of the output shaft 11, a vertical axis 13 that axially supports the helical gear 12, and this vertical axis. A pair of bearings 15, 15 for mounting 13 are provided. A worm 13a is provided at the center of the vertical axis 13 (which is an example). Further, on the front side 101c (inside) of the deceleration casing 101, a worm wheel 16 that meshes with the worm 13a of the vertical axis 13 (vertical axis), and a drive for winding and rewinding that supports the worm wheel 16. The shaft 17 (both ends 17a and 17b of the drive shaft 17 for winding and rewinding project from the left and right walls 101-1 and 101-2 of the reduction casing 101) and the drive shaft 17 for winding and rewinding. Bearings 18, 18 for mounting are provided. One end 17a of the drive shaft 17 for winding and rewinding has a support portion 17c for supporting the drive shaft 17 for winding and rewinding, and the other end 17b has a first end 17a. 1 Bevel gear 20 (described later) is firmly fixed.

Therefore, the rotation of the output shaft 11 is decelerated and transmitted as follows (transmission device). The rotation transmission by the transmission device is performed by the output shaft 11, the helical gear 11a, the helical gear 12, the vertical axis 13, the worm 13a, the worm wheel 16, and the drive shaft 17 for winding and rewinding.

The shapes of the helical gear 11a, the helical gear 12, the worm 13a, and the worm wheel 16 are not limited to helical gears, worms, and worm wheels, but other shapes such as spur gears. It is a mechanism that can be changed to the gear of.

The end portion 17b of the drive shaft 17 for winding and rewinding faces the direction changing portion casing chamber 102a (in other words, the valley opening adjustment portion casing 102) that is partitioned and formed in the valley opening adjustment portion casing 102. Therefore, the first bevel gear 20 on the driving side provided at the end portion 17b (an example of the rotating body on the driving side, other gears, a driving mechanism and the like may be provided) is provided. In the direction changing portion casing chamber 102a, the second bevel gear 21 on the driven side that meshes with the first bevel gear 20 on the driving side (an example of locking, there may be another connecting mechanism) (of the driven body on the driven side). For example, other gears, a driven mechanism, etc. may be present) and the rotary shaft 22 that supports the second bevel gear 21 and is supported in the opening adjusting portion casing 102 such as the valley portion, or the wall. It is provided. Therefore, the rotation of the drive shaft 17 for winding and rewinding is changed in direction (converted in the orthogonal direction, that is, the direction X of the output shaft 11 of the motor 10 and the opposite direction Y) as follows. It is transmitted (transmission means). The rotation transmission by the transmission means is: drive shaft 17 for winding/unwinding→first bevel gear 20→second bevel gear 21→rotary shaft 22.

The rotating shaft 22, the slider 23 (dock) that moves along the rotating shaft 22, and the guide rod 2300 that guides the slider 23 and is located above the rotating shaft 22 are provided in the opening adjusting unit casing 102 such as the valley. , And two guide rods 24 and 25 which are installed in parallel with the rotary shaft 22 and which are mounted in the opening adjusting portion casing 102 such as a valley, and the guide rods 24 and 25 are installed together and the valley and the like. The two screw shafts 26 and 27 mounted on the opening adjusting portion casing 102, and the first and second limit switches 28 and 29 (first and second limit switches) provided on the two screw shafts 26 and 27, respectively. Switch) and the first and second limit switches 28, 29 for adjusting, respectively, at the ends of the screw shafts 26, 27 (ends protruding toward the lower side 102b of the opening adjusting portion casing 102 such as a valley), and The knobs 30 and 31 located outside the opening adjusting portion casing 102 such as the valley portion are provided. Therefore, the rotation of the rotary shaft 22 causes the slider 23 to move in the vertical direction in FIG. By this movement, the slider 23 strikes against the first and second limit switches 28 and 29 to move the film B to the opening (opening of the valley A2) position or the base (closing of the valley A2) position. , Stop each. Further, the positions of the first and second limit switches 28 and 29 (in other words, for example, movement of the slider 23, change of movement distance, etc.) rotate the screw shafts 26 and 27 by operating the knobs 30 and 31, adjust.

The point of the present invention is to form a round shaft 2200 (a part without a screw) at least on one end 22a of the rotary shaft 22 of the control unit 1b on the right side in the drawing shown in FIG. To do. Further, a round shaft 2201 (screwless portion) is also formed on the other end 22b, if necessary. When the above-mentioned wiring mistake of the motor 10 or the control device 1 (control units 1a and 1b attached to the left and right sides) is installed in the valley A2 by mistake (left and right), the rotary shaft 22 rotates in the reverse direction and the slider An example is conceivable in which 23 is moved to a position where it does not move further and is locked, and a load is applied to the rotary shaft 22. The failure caused by this load causes damage to the rotary shaft 22, the screw 2202, etc. (an example is shown in FIG. 7). The round shafts 2200 and 2201 have a function of preventing the above-described failure by restricting the movement of the slider 23 when the slider 23 reaches the round shaft 2200 or 2201.

Further, in the drawing shown in FIG. 2A, a circular shaft 2201 (a screwless portion) is formed at least on the other end 22b of the rotary shaft 22 of the left control device 1a. Further, a round shaft 2200 (non-screw portion) is also formed on the one end 22a, if necessary. When the control device 1 (control unit 1b attached to the left side on the right side and control unit 1b attached to the left side on the right side) is installed in the wrong wiring (the left side and the right side) on the motor A, the rotary shaft 22 rotates in the reverse direction and the slider moves. An example is conceivable in which 23 is moved to a position where it does not move further and is locked, and a load is applied to the rotary shaft 22. In the failure caused by this load, the rotating shaft 22, the screw 2202, and the like as shown in FIG. 7 are damaged. The round shafts 2200 and 2201 have a function of preventing the above-described failure by restricting the movement of the slider 23 when the slider 23 reaches the round shaft 2200 or 2201.

In the left and right control units 1a and 1b, reference numerals of the rotary shaft 22, the round shaft 2200a, the round shaft 2200b, and the like are common.

As shown in FIG. 1, the control device 1 (targeting the control unit 1b located on the right side) is provided with a vertical rod 2 which is erected in a swingable manner on a gable surface A1 of a house A. By being attached to the vertical rod support portion 3 provided on the side 101a, the vertical rod support portion 3 is provided in the valley portion A2. When a command is given to the control device 1 by an appropriate means, the motor 10 rotates, and in the device provided in the deceleration casing 101 described above, for example, the output shaft 11, the helical gear 11a, the helical gear 12, the vertical axis 13 The worm 13a→the worm wheel 16→the joint fitting 33 that is transmitted to the drive shaft 17 for winding and rewinding and is connected to the drive shaft 17 for winding and rewinding, and/or the winding and rewinding shaft (not shown). In the case of this rotation direction, the film B of the valley portion A2 is wound up as indicated by a clockwise arrow 1 in FIG. 2-1 to open (open) the valley portion A2 (shown in FIG. 2-1). It is the position of the imaginary line). During this operation, the transmission direction is converted by the meshing of the first bevel gear 20 and the second bevel gear 21 in the direction changing portion casing chamber 102a, and is transmitted to the rotary shaft 22 of the valley opening adjusting portion casing 102 ( The rotation of the rotary shaft 22 is based on the above-described drive shaft 17 for winding and rewinding→the first bevel gear 20→the second bevel gear 21→the rotary shaft 22). The rotation of the rotary shaft 22 causes the slider 23 to move, and when the slider 23 strikes the first limit switch 28, the slider 23 stops at the open end. The size of the opening can be adjusted as described above. The control device 1a located on the left side is also the same as the control device 1b located on the right side.

The opening is closed by reversing the above-described rotation and operation, and rewinding is performed as indicated by the arrow 2 in the counterclockwise direction to close the opening. That is, it is in close contact with the trough (not shown) of the valley A2 (the position of the solid line shown in FIG. 1).

In addition, a laterally installed control device 1 (a left-right control unit 1a and a control unit 1b) is provided at a side portion A3 (side side) of the house A in FIGS. 3-1 and 3-2. An outer shell of the control device 1 includes a motor casing 100, a speed reduction casing 101 adjacent to the motor casing 100, and opening adjustment portions such as troughs provided on the front sides 100b and 101c of the motor casing 100 and the speed reduction casing 101. And a casing 102. However, in the opening adjusting portion casing 102 such as the valley portion, a direction changing portion casing chamber 102a that is partitioned is provided. The structure of the control device 1 is the same as that of the control device 1 attached to the valley portion A2 of the house A in FIGS. 1, 2-1 and 2-2. In the figure, reference numeral 32 denotes a side film winding rod, which is connected to the drive shaft 17 for winding and rewinding.

In the present invention, the viewing window 34 is provided on the front side when the viewing window 34 is provided on the end surface A1. As a result, for example, it is possible to ensure optimal viewing and convenience.

The above-described structures, features, etc. are descriptions of preferred examples of the present invention. Therefore, the present invention is not limited to the above-described examples, and a structure in which a part of the structure is changed within the scope of the spirit of the invention, a structure capable of achieving the same features and effects, and the like are within the scope of the present invention. is there.

1 control device 1a control part 1b control part 100 motor casing 100a lower side 100b front side 101 deceleration casing 101a lower side 101b back side 101c front side 101-1 right wall 101-2 left wall 102 trough equal opening adjustment casing 102a direction Conversion part Casing chamber 102b Lower side 102c Front side 2 Vertical rod 3 Vertical rod support 10 Motor 11 Output shaft 11a Helical gear 12 Helical gear 13 Vertical axis 13a Worm 15 Bearing 16 Worm wheel 17 Drive shaft 17a End 17b End portion 17c Support portion 18 Bearing 20 First bevel gear 21 Second bevel gear 22 Rotation shaft 22a End portion 22b End portion 2200 Round shaft 2201 Round shaft 2202 Screw 23 Slider 2300 Guide rod 24 Guide rod 25 Guide rod 26 Screw shaft 27 Screw Axis 28 First limit switch 29 Second limit switch 30 Pick 31 Pick 32 Winding rod 33 Joint metal fitting 34 Viewing window A House A1 Gable surface A2 Valley A3 Side B film

Claims (4)

A rotary shaft provided in the opening adjusting portion casing such as a valley part of a house or a valley part provided in a side part, a driven side rotating body provided on the rotating shaft, and locked to the driven side rotating body. The rotating body on the driving side, the drive shaft provided with the rotating body on the driving side, the slider that moves forward and backward by engaging with the screw of the rotating shaft, the guide rod for guiding the slider, and the slider. A forward/backward limit switch to stop, and a film winding/rewinding control device stop device consisting of
The stopping device is characterized in that at least one end of the rotating shaft is formed with a stopping means, and the movement of the slider is restricted when the slider reaches the stopping means. Stopping device for film winding/rewinding control device. The stopping means is a shaft portion having no screw provided at least at one end of the rotating shaft,
The film winding/rewinding control device stop device according to claim 1, wherein the movement of the slider is restricted when the slider reaches the shaft portion. The stopping device for a film winding/rewinding control device according to claim 2, wherein the shaft portion is a round shaft having a smaller outer diameter than at least the outer diameter of the screw. The stop device of the film winding/rewinding control device according to claim 3, wherein an axial slit is provided on an outer peripheral surface of the round shaft.