JP7016009B2 - Installation device for light-shielding roll screens for greenhouses - Google Patents

Description

The present invention relates to a device for stretching a light-shielding roll screen for a vinyl house, and more specifically, the present invention is installed on a covering sheet of a vinyl house or a support member provided in the house, and direct sunlight is incident on the inside of the vinyl house. It belongs to the tensioning device that adjusts the spring such as the first winding of the light-shielding roll screen to control from the vertical direction.

Due to the influence of global warming in recent years, the time when direct sunlight strongly enters the greenhouse increases, and if the temperature inside the greenhouse rises too much, it will affect the cultivation of vegetables and flowers in the greenhouse, and inside the greenhouse. The labor of the worker is also consumed. Therefore, it has been conventionally practiced to open and close the covering sheet itself of the vinyl house, or to install a ventilation device in a part of the vinyl house to control the temperature.
In this regard, as a convenient means of controlling the temperature inside the greenhouse, a roll screen is spread and coated on the outer surface or the inside of the vinyl house, and the unfolding position (length) of the roll screen is adjusted into the house. The applicant paid attention to the point of controlling the incident of direct sunlight.

As a general roll screen-related technique, for example, in Patent Document 1 below, an adjusting device is housed at one end in a take-up pipe, the adjusting device is connected to the end of a torsion coil spring, and the outer end of the adjusting device is connected. The position is substantially aligned with one end surface of the take-up pipe, the mounting bracket is attached to the outer end of the adjusting device, and the length of the take-up pipe and the distance between the pair of mounting brackets are substantially matched with the length of the take-up pipe. A roll blind elevating device that approximately matches the width of the screen, exposes the base end of the adjustment shaft that operates the adjustment device to the side surface of the mounting bracket, and provides an engaging portion for engaging a general-purpose tool at the base end. Is disclosed.

Further, as in Patent Document 2, the clutch drum locked to the side plate and rotatably attached to the side plate so that one end is exposed from the opening provided in the side plate through the center hole of the clutch drum. An adjustment drum that can be rotated from the opening, an adjustment dial that is attached to the outer circumference of the adjustment drum and is arranged between the take-up pipe and the side plate, and an adjustment dial that is connected to one end of a spring to rotate the adjustment drum. The drive drum that transmits to the spring and the inner peripheral side of the adjustment dial and the outer peripheral side of the clutch drum are provided to loosen due to the rotation of the adjustment drum or adjustment dial, and the rotation is transmitted to the drive drum and the rotation from the spring side. A roll screen adjusting device including a clutch spring that is fastened to a clutch drum to prevent transmission of rotation to the adjusting drum and the adjusting dial has been developed and is known.

Jitsufuku No. 6-17995 Japanese Patent No. 3393047

In order to efficiently control the incident of direct sunlight into the greenhouse, it is desirable to continuously install light-shielding roll screens on the outside or inside of the roof or side of the greenhouse with as little space as possible. Then, after installing the light-shielding roll screen, it is necessary to appropriately adjust the spring after the first winding or after aged use (see FIG. 1).

However, the roll blind elevating device of Patent Document 1 will be described with reference to the simplified diagram of FIG. 9 of the present application. The end d is provided with an engaging portion g for engaging a general-purpose tool such as an electric impact driver k. Therefore, when adjusting the winding or unwinding of the roll screen, a work space of about 35 cm, in which the base end d (locking portion g) exposed on the side surface is shown by W'in FIG. 9 from the side surface direction, is provided. Must be secured. When this type of roll curtain is used in a greenhouse, a space of about 35 cm must be left between adjacent roll screens, and there is a large space where the direct sunlight can not be controlled in the greenhouse. It ends up.

On the other hand, in the adjusting device of Patent Document 2, when adjusting the exposed surface of the adjusting drum that can be rotated from the opening of the side plate with a screwdriver or the like, a wide working space must be secured on the side surface portion as described above. It doesn't become. On the other hand, when the adjustment is performed by using the adjustment dial arranged between the take-up pipe and the side plate, it is not necessary to secure the above-mentioned work space. However, this adjusting device has a large number of parts such as a side plate, an adjusting dial, a clutch drum, an adjusting drum, a drive drum, and a clutch spring, and is troublesome to assemble and adjust.

Therefore, an object of the present invention is that a light-shielding roll screen that suppresses or limits the incident of direct sunlight into the greenhouse can be installed on the outer surface or the inside of the greenhouse, and spring adjustment such as initial winding after installation can be easily performed. It is to provide a device for installing a light-shielding roll screen for a greenhouse, which has a simple structure, can be easily performed from a vertical direction, and is securely locked.

As a means for solving the above-mentioned problems, the setting device for the light-shielding roll screen for a greenhouse according to the invention according to claim 1 is a support member installed on the upper surface of a covering sheet of a vinyl house or inside the vinyl house. One end of the coil spring wound around the outer circumference of the take-up shaft rotatably supported by the bracket at both ends is on the take-up shaft. A light-shielding roll that is fixed and the other end of the coil spring is connected to a take-up pipe fitted to the outer periphery of the take-up shaft, and one end is fixed to the take-up pipe by the accumulating force of the coil spring generated through the rotation of the take-up shaft. In a light-shielding roll screen device in which the screen can be freely wound or stretched.
The tip of the take-up shaft is projected from the insertion hole of the bracket via the end cap, and a bevel gear in which a horizontal gear and a vertical gear are screwed is attached to the tip of the protruding take-up shaft. The vertical shaft provided on the vertical gear of the bevel gear is arranged in a vertical direction for easy rotation operation, and the vertical shaft is rotated by an external power to store the energy of the coil spring wound around the take-up shaft. The bevel gear is locked by adjusting the force so that the light-shielding roll screen can be freely wound or stretched, and a lock member that can be fitted to the outer periphery of the vertical shaft is fitted to the vertical shaft. It is characterized by being a configuration.

In the device for stretching a light-shielding roll screen for a vinyl house according to claim 2, a ratchet is attached to the tip of the take-up shaft on the outside or inside of the bracket, and the take-up shaft is attached to the take-up shaft after spring adjustment. It is characterized by being locked by a ratchet.

The device for stretching the light-shielding roll screen for a greenhouse according to the third aspect of the invention is installed along the upper surface of the covering sheet of the vinyl house or the upper surface of the support member installed inside the vinyl house, and is installed along the upper surface of the light-shielding roll screen. One end of the coil spring wound around the outer circumference of the winding shaft rotatably supported by the bracket at both ends is fixed to the winding shaft, and the other end of the coil spring is the winding. A light-shielding roll screen that is connected to a take-up pipe fitted on the outer circumference of the take-up shaft and has one end fixed to the take-up pipe is freely wound or stretched by the accumulated force of a coil spring generated through the rotation of the take-up shaft. In the light-shielding roll screen device
The square tip of the take-up shaft was projected from the insertion hole of the bracket via the end cap, and the horizontal gear and the vertical gear were screwed into the square tip of the take-up shaft that was projected. A bevel gear is attached, and the vertical shaft provided on the vertical gear of the bevel gear is arranged in a vertical direction for easy rotation operation. By rotating the vertical shaft with external power, the coil spring of the take-up shaft By adjusting the storage force, the light-shielding roll screen can be freely wound or stretched, and a lock member that can be fitted to the square shaft tip of the winding shaft is fitted to the square shaft tip. The winding shaft is locked.

In the device for stretching a light-shielding roll screen for a greenhouse according to the fourth aspect of the present invention, a pair of guide groove pieces are formed on the outer surface of the bracket at the upper and lower positions sandwiching the insertion hole, and is substantially U-shaped. A lock member having a lock recess is inserted laterally between the guide groove pieces to lock the tip of the square shaft of the take-up shaft.

In the device for stretching the light-shielding roll screen for vinyl house according to the present invention, a bevel gear is attached to the tip of the take-up shaft, and the shaft of the bevel gear can be rotated from the vertical direction. Even in places, the storage force of the coil spring can be easily adjusted, making it easy to use.
In addition, the light-shielding roll screen stretching device can be installed one after another on the covering sheet of the vinyl house or on the support member in the house even in a narrow gap of about 1/7 (about 5 cm) of the conventional one, and in the vinyl house. It is also excellent in the convenience of being able to limit or suppress the incident of sunlight on the greenhouse as much as possible.

A and B are a perspective view and a front view showing a state in which the setting device for the light-shielding roll screen for a greenhouse of the present invention is installed on a covering sheet. It is the perspective view which showed the winding pipe part of the tensioning apparatus disassembled. It is the perspective view which showed by disassembling the different tip part of the tensioning apparatus. It is explanatory drawing which showed the ratchet mechanism part of the tensioning apparatus of FIG. It is the perspective view which showed by disassembling the different tip part of the tensioning apparatus. A and B are side views showing the procedure for locking the lock member of the tensioning device and the procedure for adjusting the re-spring in FIG. It is a perspective view which showed the attachment state to the vinyl house of the tensioning apparatus. A and B are a perspective view and a front view showing an example of use of the tensioning device in the house. It is explanatory drawing which showed the conventional example.

Hereinafter, an embodiment of the illustrated light-shielding roll screen for vinyl house stretching device according to the present invention will be described.
In the stretching device including the light-shielding roll screen 1 of the present embodiment, the covering sheet b of the vinyl house a is mainly used to suppress the incident of direct sunlight into the vinyl house a as shown in FIGS. 1 and 8. It is sequentially installed on the upper surface of the roof so as to cover the roof a3 and the side surfaces a1 and a2.
That is, in the general greenhouse a exemplified in FIG. 1A, a large number of arch-shaped pipes c constituting the house frame are erected in the depth direction, and the horizontal horizontal pipe d orthogonal to the arch pipe c is the arch pipe. It is connected to c. A covering sheet b (not shown) is stretched using the sheet stopper s installed in the house frame (see FIG. 7). A plurality of stretching devices for the light-shielding roll screen 1 are installed on the sheet stopper s installed above the one side surface a1 of the vinyl house a at intervals of about 5 cm.

The light-shielding roll screen 1 of the stretching device is made of, for example, a resin sheet having a light-shielding ratio of 60%, and is formed of a long object having a width of 3 m and a length of 7 to 8 m. As shown in FIG. 1A, stretching and winding are freely configured so as to cover the entire roof a3 extending from the upper part of one side surface a1 of the vinyl house a to the upper part of the opposite side surface a2. Further, it is possible to form the light-shielding roll screen 1 to a desired length such as the length from the upper part of one side surface a1 of the house a to the top of the roof a3 as half the length (illustrated). Is omitted). The other end of the light-shielding roll screen 1 having one end fixed to the tensioning device (winding pipe 3 described later) is supported by the side surface a2 on the opposite side of the vinyl house a, and is supported by a manual or automatic winding device (shown in FIG. 8A). The light-shielding roll screen 1 is pulled up from the take-up pipe 3 and unfolded, or is taken up by the take-up pipe 3 to control the incident of direct sunlight. Then, the first first winding after installation and the readjustment of the spring after aged use are performed by the tensioning device as follows.

The stretching device will be described with reference to FIGS. 2 and 3. One end (right side in the illustrated example) of the coil spring 4 wound around the outer circumference of the take-up shaft 5 rotatably supported by the brackets 2 and 2 at both ends is fixed to the inner end 55'of the spring fixing member 55 of the take-up shaft 5. Has been done. The other end of the coil spring 4 is connected to the inner end 53'of the connecting member 53 rotatably attached to the take-up shaft 5. The connecting member 53 is locked to the inner side surface of the take-up pipe 3 fitted on the outer periphery of the take-up shaft 5 so that it can rotate together. Therefore, the light-shielding roll screen 1 having one end fixed to the take-up pipe 3 is freely wound or stretched by the accumulated force of the coil spring 4 generated through the rotation of the take-up shaft 5.

The tip portion 50 of the take-up shaft 5 protrudes from the insertion hole 20 of the bracket 2 via the end cap 6 and the bearing 65. A protrusion 60 is provided on the inner surface of the bearing 65 by dividing it in the circumferential direction, and each of the protrusions 60 is formed in a plurality of recesses 30 formed in the circumferential direction of the outer end of the take-up pipe 3. Be fitted. On the other hand, as shown in FIG. 4, the base end portion 51 of the take-up shaft 5 is fitted with a shaft center shake prevention member 52 and is pivotally supported by the other bracket 2 via the spacer 54 and the end cap 69. There is. The tensioning device is installed on the seat stopper s by using the brackets 2 and 2 (see FIG. 7).

The tensioning device shown in FIG. 3 will be described. A pair of bevel gears 8 (80 and 81) is attached to the tip portion 50 of the take-up shaft 5 protruding outward from the insertion hole 20 of the bracket 2 as a means for vertically adjusting the stored force of the coil spring 4. It is attached.
The tip of the take-up shaft 5 mounted on the coil spring 4 of this tensioning device is projected through the insertion hole 20 of the bracket 2 via the bearing 65 in addition to the end cap 6. An annular locking portion 66 is formed on the outer surface of the bearing 65 so as to fit into the insertion hole 20 of the bracket 2, and the protrusion 67 provided on the outer periphery of the locking portion 66 is formed in the insertion hole 20. It is configured to be locked in the recess 21 provided in (see FIG. 5).

The bevel gear 8 is attached to the tip portion 50 of the take-up shaft 5 protruding from the insertion hole 20 of the bracket 2. The bevel gear 8 is formed by screwing a horizontally arranged horizontal gear 80 and a vertical gear 81 that meshes vertically with respect to the horizontal gear 80 into the horizontal gear 80, and a vertical axis 82 in the direction perpendicular to the vertical gear 81. It is installed vertically for easy rotation. The bevel gear 8 and the ratchet 25 below (FIG. 6) are also housed and protected in the detachable casing 75 (not shown).

Therefore, according to the tensioning device in which the bevel gear 8 is attached to the tip portion 50 of the take-up shaft 5, the take-up pipe 3 is rotated by rotating the vertical shaft 82 of the bevel gear 8 in a vertical posture by a desired number of times. The stored force of the coil spring 4 applied to (light-shielding roll screen 1) can be adjusted. As described above, the first winding adjustment of the light-shielding screen 1 ..., which is performed after the stretching device is installed at a predetermined position in the vinyl house a, is performed from a vertical direction by an electric impact driver or the like even in a narrow place. It can be easily done with a tool (external power) k. After that, when the accumulating force of the coil spring 4 is adjusted again, it can be easily performed by working from the vertical direction as in the case of the first winding.

As a means for locking the bevel gear 8 after adjusting the spring by the rotation of the bevel gear 8, for example, a lock member 9 is fitted on the outer periphery of the vertical shaft 8 to lock the rotation. Alternatively, it is also possible to use the ratchet 25 shown in FIG. 4 to lock the rotation. In that case, the ratchet 25 is attached to the tip portion 50 of the take-up shaft 5 protruding from the bracket 2, and the claw portion 25a attached to the outer peripheral surface 22 of the bracket 2 bites into the gear of the ratchet 25 to stop it. The ratchet 25 may be attached to the take-up shaft 5 inside the bracket 2 for implementation. In any case, particularly when the spring is adjusted again, the take-up shaft 1 does not rotate in the reverse direction and loosen, and the take-up shaft 5 rotates a desired number of times and is securely locked by the ratchet 25.

Next, the stretching device shown in FIG. 5 will be described. The tip portion 50 of the take-up shaft 5 in this stretching device is formed in a square shape (hexagon in this embodiment), but the basic structure other than this is substantially the same as that of the stretching device of FIG. The lock member 9 is different in that it locks the square axis tip 50, not the vertical axis 82.
That is, a pair of guide groove pieces 23, 23 are formed on the outer surface 22 of the bracket 2 at the vertical positions sandwiching the insertion hole 20, so that the lock member 9 can move and the square shaft tip portion 50 can stop the rotation. .. The lock member 9 of the present embodiment has a lock recess 90 recessed in a hexagonal shape from one side so that the hexagonal shaft tip portion 50 of the take-up shaft 5 can be fitted. Therefore, the overall shape is formed in a substantially U-shape, and the lock recess 90 is fitted between the guide groove pieces 23 and 23 of the bracket 2 from the lateral direction and fitted to the square shaft tip portion 50 of the take-up shaft 5. The lock is freely configured.

Therefore, after adjusting the accumulating force of the coil spring 4 of the light-shielding roll screen 1 by rotating the vertical axis 82 of the bevel gear 8 a desired number of times from the vertical direction, the guide groove of the bracket 2 is as shown in FIGS. 5 and 6A. When the lock member 9 is inserted between the pieces 23 and 23 from the lateral direction, the square shaft tip 50 of the take-up shaft 5 fits into the lock recess 90, and the take-up shaft 5 is locked by stopping rotation. ..
When it becomes necessary to readjust the spring afterwards, as shown in FIG. 6B, the lock member 9 inserted between the guide groove pieces 23 and 23 of the bracket 2 is pulled out, and the vertical axis 82 is rotated a desired number of times again. Then, the stored force of the coil spring 4 is adjusted, and after the adjustment is completed, the lock member 9 is inserted between the guide groove pieces 23 and 23 of the bracket 2 from the lateral direction as shown in FIG. 6A, and the take-up shaft 5 is inserted. Just lock it.

[Second Embodiment]
As shown in FIG. 8, the support member e is installed inside the vinyl house a, and the light-shielding roll screen 1 of the stretching device is stretched and wound on the upper surface of the support member e. ..
As the support member e, the mountain-shaped internal pipe shown in FIG. 8 is suitable. This mountain-shaped internal pipe e is connected to each inner portion of both side surfaces a1 and a2 of each arch pipe c ... constituting the house frame, and the horizontal pipe d is the plurality of mountain-shaped internal pipes e ...・ Each top is connected. Thus, the stretching device is installed on the upper part of one end of the internal pipe e installed inside the vinyl house a. Therefore, the light-shielding roll screen 1 is stretched to a desired position on the upper surface of the internal pipe e in the house a, and can be freely wound and stored.
Then, the automatic winding device indicated by the reference numeral k in FIG. 8A is installed in the frame of the house a, and the string 10 attached to the tip of the light-shielding roll screen 1 is connected to the automatic winding device. Therefore, the automatic winding device k can be operated to easily extend and wind the light-shielding roll screen 1, and the spring can be smoothly adjusted in the vinyl house a for the first winding and after aged use.

Although the embodiments have been described above based on the drawings, the present invention is not limited to the illustrated examples, and includes a range of design changes and application variations normally performed by those skilled in the art within a range not deviating from the technical idea thereof. I will mention it just in case.

a Vinyl greenhouse b Covering sheet e Support member (internal pipe)
1 Light-shielding roll screen 2 Bracket 20 Insertion hole 23 Guide groove piece 25 Ratchet 3 Winding pipe 4 Coil spring 5 Winding shaft 50 Tip 6 End cap 8 Bevel gear 82 Vertical axis 9 Lock member 90 Lock recess

Claims (4)

It is installed along the upper surface of the covering sheet of the vinyl house or the upper surface of the support member installed inside the vinyl house, and the light-shielding roll screen is expanded or wound up and stored, and both ends are rotatably supported by the bracket. One end of the coil spring wound around the outer circumference of the take-up shaft is fixed to the same take-up shaft, and the other end of the coil spring is connected to the take-up pipe fitted on the outer circumference of the take-up shaft, through the rotation of the take-up shaft. In a light-shielding roll screen device in which a light-shielding roll screen having one end fixed to a take-up pipe is freely wound or stretched by the accumulated force of a coil spring generated.
The tip of the take-up shaft is projected from the insertion hole of the bracket via the end cap, and a bevel gear in which a horizontal gear and a vertical gear are screwed is attached to the tip of the protruding take-up shaft. The vertical shaft provided on the vertical gear of the bevel gear is arranged in a vertical direction for easy rotation operation, and the vertical shaft is rotated by an external power to store the energy of the coil spring wound around the take-up shaft. The bevel gear is locked by adjusting the force so that the light-shielding roll screen can be freely wound or stretched, and a lock member that can be fitted to the outer periphery of the vertical shaft is fitted to the vertical shaft. Being a composition,
A device for installing a light-shielding roll screen for greenhouses. A light-shielding for greenhouse, wherein a ratchet is attached to the tip end portion of the take-up shaft according to claim 1 on the outside or inside of the bracket, and the take-up shaft is locked by the ratchet after the spring is adjusted. Roll screen tensioning device. It is installed along the upper surface of the covering sheet of the vinyl house or the upper surface of the support member installed inside the vinyl house, and the light-shielding roll screen is expanded or wound up and stored, and both ends are rotatably supported by the bracket. One end of the coil spring wound around the outer circumference of the take-up shaft is fixed to the same take-up shaft, and the other end of the coil spring is connected to the take-up pipe fitted on the outer circumference of the take-up shaft, through the rotation of the take-up shaft. In a light-shielding roll screen device in which a light-shielding roll screen having one end fixed to a take-up pipe is freely wound or stretched by the accumulated force of a coil spring generated.
The square tip of the take-up shaft was projected from the insertion hole of the bracket via the end cap, and the horizontal gear and the vertical gear were screwed into the square tip of the take-up shaft that was projected. A bevel gear is attached, and the vertical shaft provided on the vertical gear of the bevel gear is arranged in a vertical direction for easy rotation operation. By rotating the vertical shaft with external power, the coil spring of the take-up shaft By adjusting the storage force, the light-shielding roll screen can be freely wound or stretched, and a lock member that can be fitted to the square shaft tip of the winding shaft is fitted to the square shaft tip. , The winding shaft is locked.
A device for installing a light-shielding roll screen for greenhouses. A pair of guide groove pieces are formed on the outer surface of the bracket according to claim 3 at the upper and lower positions sandwiching the insertion hole, and a lock member having a substantially U-shaped lock recess is laterally formed between the guide groove pieces. A device for stretching a light-shielding roll screen for greenhouses, which is characterized by being inserted from the front and locking the tip of the square shaft of the take-up shaft.

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