Bobbin for slit-type sliding shading curtain

Abstract

To provide a bobbin suitable for winding and unwinding a drive rope that efficiently and reliably slides a slit-type sliding shading curtain used to adjust a shading rate for plants in a vinyl greenhouse.SOLUTION: On one side 10 inside a vinyl greenhouse 1, a bobbin 5 composed of a pair of half bodies 50, 50 is detachably attached in a tubular state to a drive pipe 7, and a pulley 6 is attached to the other side 11. A drive rope 4 has one end 40 fixed to the bobbin 5 and wound a desired number of turns around a groove 52 on an outer periphery 51 of the bobbin 5, and another end 41 wound around the pulley 6 and then fixed to the bobbin 5. A solar panel 3 is fixed to the drive rope 4. By rotation of the drive pipe 7, the drive rope 4 is wound onto the bobbin 5 on the outer periphery 51 of the bobbin 5 without becoming entangled, and the solar panel 3 is slidable.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bobbin for a slit-type sliding shading curtain, and more specifically, to the technical field of bobbins suitable for winding and unwinding a drive rope that efficiently and reliably slides a slit-type sliding shading curtain, which is used, for example, to adjust the shading rate for plants in a greenhouse. [Background technology]

[0002] The technology of sliding blackout curtains is used in greenhouses to generate electricity from the sunlight that is blocked while maintaining the amount of light suitable for growing plants, thereby making effective use of energy. For example, Patent Document 1 listed below discloses a greenhouse shading device that includes a panel (92) in which shading portions (94) that block sunlight are arranged in a grid pattern, and light-transmitting portions (95) other than the shading portions (94) are arranged vertically and horizontally at a predetermined pitch, a shading curtain (93) that blocks light from passing through the light-transmitting portions (95) and has solar power generation panel portions (97) that receive sunlight and generate electricity and are arranged at the same arrangement pitch of the light-transmitting portions (95) is arranged so as to overlap the underside of the panel (92), and a shading curtain moving device that moves the shading curtain (93) to change the area of ​​light blocked by the solar power generation panel portions (97) in the light-transmitting portions (95), i.e., the light-transmitting area of ​​the light-transmitting portions (95) (see claim 1). Furthermore, paragraph

[0042] of the same document 1 states, "One end of the blackout curtain 93 is attached via a spring 98 so that it can move laterally. A cylinder (actuator) 99 for movement is attached to the other end of the blackout curtain 93. Therefore, by operating the cylinder 99 against the spring 98, the blackout curtain 93 is moved, and the light-blocking area caused by the solar panel portion 97 in the transparent portion 95, i.e., the light-transmitting area of ​​the transparent portion 95, is changed, and these springs 98 and cylinders 99 form a blackout curtain moving device." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-172522 Summary of the Invention [Problem to be solved by the invention]

[0004] The greenhouse shading device of Patent Document 1 is a large-scale configuration that requires the installation of a large panel 92 in which shading portions 94 are arranged in a grid pattern and translucent portions 95 other than the shading portions 94 are arranged at a predetermined pitch vertically and horizontally, and then the installation of a shading curtain 93 overlapping the underside of the panel 92, which has solar power generation panel portions 97 that block light from passing through the translucent portions 95 and receive sunlight to generate electricity, and are arranged at the same pitch as the translucent portions 95. Furthermore, a spring 98 and a moving cylinder (actuator) 99 must be prepared to move the blackout curtain 93, which is troublesome and cumbersome to implement and inevitably increases construction costs.

[0005] Therefore, an object of the present invention is to provide a bobbin that allows a slit-type sliding shading curtain, which is used to adjust the shading rate for plants in a greenhouse, to be easily and easily slid by reliably winding and unwinding the drive rope. [Means for solving the problem]

[0006] As a means for solving the above-mentioned problems, the invention described in claim 1 is a slit-type sliding blackout curtain in which a plurality of solar panels 3 are slidably mounted on a ceiling 2 in a greenhouse 1 as a blackout curtain, (a) A bobbin 5 consisting of a pair of half-split bodies 50, 50 is detachably attached to a driving pipe 7 in a tubular state on one side 10 of the greenhouse 1, and a pulley 6 is attached to the other side 11. (b) One end 40 of the drive rope 4 is fixed to the bobbin 5 and wound around the groove 52 on the outer periphery 51 of the bobbin 5 a desired number of times, and the other end 41 is wound around the pulley 6 and then fixed to the bobbin 5. (c) the solar panel 3 is fixed to the drive rope 4; (d) When the drive pipe 7 rotates, the drive rope 4 is wound around the bobbin 5 without getting tangled around the outer periphery 51 of the bobbin 5, allowing the solar panel 3 to slide freely. The bobbin for a slit-type sliding blackout curtain is characterized by the above.

[0007] The invention described in claim 2 is characterized in that a pair of half bodies 50, 50 constituting the bobbin 5 are each of the same size and shape, and a protruding piece 54 with a locking tip portion 54a is formed at one end of the butting surface 53 of each half body 50, and a fitting hole 55 is formed at the other end, The pair of half bodies 50, 50 has the protruding piece 54 of one half body 50 fitted into the fitting hole 55 of the other half body 50 to form a bobbin 5 in a tubular state; The bobbin for a slit-type sliding blackout curtain according to claim 1 is characterized by the above.

[0008] In the invention described in claim 3, a screw hole 56 into which a drill screw 8 can be screwed is provided on the outer periphery 50 of the bobbin 5, The bobbin 5, which is made up of a pair of half bodies 50, 50, is attached to the drive pipe 7 so as to sandwich the drive pipe 7 therebetween. The drill screw 8, which has one end 40 of the drive rope 4 engaged thereto, is passed through a screw hole 56 of the bobbin 5 and then screwed into the drive pipe 7 and fixed thereto, and the other end 41 of the drive rope 4 is engaged with the bobbin 5 by a separate drill screw 8, which is passed through the screw hole 56 and then screwed into the drive pipe 7 and fixed thereto; The bobbin for a slit-type sliding blackout curtain according to claim 1 or 2 is characterized by the above.

[0009] The invention described in claim 4 is characterized in that the number of times that the one end 40 of the drive rope 4 is wound around the groove 51 of the bobbin 5 is set in accordance with the sliding range of the solar panel 3; The bobbin for a slit-type sliding blackout curtain according to claim 1 is characterized by the above.

[0010] The invention described in claim 5 is applied to a shading sheet or a shading sheet panel instead of the solar panel 3. Alternatively, it is applied to a shading sheet or a shading sheet panel together with the solar panel, The bobbin for a slit-type sliding blackout curtain according to claim 1 is characterized by the above. [Effects of the Invention]

[0011] The bobbin for a slit-type sliding light-blocking curtain according to the present invention is excellent in workability, as the bobbin, which is made up of a pair of halves, can be easily attached to a drive pipe in the state of a tubular body. For example, if this is applied to a slit-type sliding shading curtain used to adjust the shading rate for plants in a greenhouse, when the drive rope is wound up and unwound, the drive rope that has been wound around the groove on the outer periphery of the bobbin the desired number of times is wound onto the bobbin without getting tangled on the outer periphery of the bobbin, thereby realizing smooth sliding movement of the solar panel that serves as the shading curtain. [Brief explanation of the drawings]

[0012] [Figure 1] These figures show the half-pieces that make up the bobbin for the slit-type sliding blackout curtain of the present invention from various angles, where (A) is an oblique view from diagonally below, (B) is a left end view, (C) is an oblique view from a different diagonally below, (D) is a plan view, (E) is a front view, (F) is a reference bottom view, (G) is an oblique view from diagonally above, (H) is a right end view, and (I) is an oblique view from a different diagonally above. [Figure 2] 1A is a perspective view showing the tubular state of a bobbin made up of a pair of halves from below, and FIG. 1B is a perspective view showing the pair of halves from below before the bobbin is in the tubular state. [Figure 3] 10 is a plan view showing a state in which one end of a drive rope is hooked to a bobbin fixed to a drive pipe. FIG. [Figure 4] 4 is a plan view showing a state in which the drive rope has been wound around the groove of the bobbin a desired number of times from the state shown in FIG. 3. FIG. [Figure 5] This is an overall view (top) and an enlarged view (bottom) of the main part showing how a bobbin is used in a slit-type sliding blackout curtain. [Figure 6] This is a schematic diagram showing how a bobbin is used in a three-layer slit-type sliding blackout curtain. (A) shows the blackout curtain in its fully open state, and (B) shows the blackout curtain in its sliding state. [Figure 7] (A) is a front view showing a schematic diagram of a three-layer slit-type sliding blackout curtain installed on the ceiling inside a greenhouse, and (B) is an enlarged overall perspective view of the blackout curtain in (A). DETAILED DESCRIPTION OF THE INVENTION

[0013] An embodiment of the bobbin for a slit-type sliding light-blocking curtain according to the present invention will be described below. The bobbin 5 of this embodiment is suitable for use in a slit-type sliding blackout curtain 3 that can slide horizontally as a blackout curtain, with multiple solar panels 3 mounted on the ceiling 2 inside a vinyl greenhouse 1, which has a greenhouse framework made up of arch pipes 12 as shown in Figure 7, and a sheet fastened between sheet fastening materials not shown. However, the same can be done with a wooden house 9 as shown in Fig. 5. In addition, in the case of a house 9 with an oblique roof, the invention can also be applied to a blackout curtain 3 that is disposed obliquely parallel to the obliquely sloping roof, and the blackout curtain 3 can be slid obliquely to make effective use of the ceiling 2 of the house 9 (not shown). Multiple solar panels 3 are fixed to a bobbin 5 attached to a drive pipe 7 on one side 10 of the greenhouse 1 and a drive rope 4 wound around a pulley 6 on the other side 11 (see Figure 5).

[0014] This is preferably implemented in a three-layered blackout curtain as shown in Figures 7 and 5, but there are no limitations on the number of layers. In the present embodiment, which is schematically shown in Figure 6, an example is shown in which a three-layered blackout curtain is implemented, and the solar panel 3 of the first layer, which is placed on the bottom layer, is not moved. The solar panel 3 of the second layer placed above it, and the solar panel 3 of the first layer placed above the second layer, are each slid to the desired positions.

[0015] The solar panels 3, which serve as blackout curtains, are each approximately 220 mm wide, 1700 mm deep, and 3 mm thick, and are arranged in three layers as described above. Nine solar panels 3 are arranged vertically in the direction of the frontage G (approximately 5.4 m) on each layer, for a total of 27 panels in three layers. These three layers of 27 panels are arranged in six groups in the direction of the depth T (approximately 10 m), for a total of 162 solar panels 3 (Figure 7). The solar panels 3 are attached to a drive rope 4 with a gap (slit) of about 400 mm between them in the direction of the opening G (see Figure 7). The drive rope 4 is moved within a desired range in the direction of the opening G by the rotation of a bobbin 5 to which one end 40 and the other end 41 are fixed. In this embodiment, as shown below, an example is described in which a solar panel 3 is used as a shading curtain, but the same can be applied to a shading sheet or shading sheet panel (not shown) instead of the solar panel 3.

[0016] FIG. 1 shows the configuration of the bobbin 5 of this embodiment. This bobbin 5 is made up of a pair of half bodies 50, 50 and is attached to a drive pipe 7 in a tubular state so as to be freely detachable on one side 10 inside the above-mentioned vinyl greenhouse 1. The pair of resin-made halves 50, 50 that make up the bobbin 5 (however, they are not limited to resin and may be made of iron or other materials) are each of the same size and shape. In this embodiment, the depth is approximately 60 mm, and when the pair of halves 50, 50 are joined together to form a tubular body (FIG. 2A), the outer diameter is approximately 35 mm, and a cavity 57 with an inner diameter of approximately 20 mm can be formed inside to accommodate the drive pipe 7 (FIG. 3). A spiral groove 52 is formed on the outer periphery of each half 50, around which the drive rope 4 can be wound.

[0017] A protruding piece 54 with a locking tip 54a is formed protruding vertically from one end of the mating surface 53 of the half-split body 50. This locking tip 54a has a sharp tip, and at its intermediate position is formed a locking part 54b that protrudes slightly outward so as to be hooked into an insertion hole 55 described below. On the other hand, at the other end of the butted surface 53 of each half body 50 of the bobbin 5, a fitting hole 55 is formed which penetrates vertically so that the protruding piece 54 can be fitted therein. Each half body 50 has two screw holes 56 formed at both ends of the top of the outer periphery 50, into which drill screws 8 can be threaded. Furthermore, the butting surfaces 53 of the half bodies 50 are provided with small recesses 53a and protrusions 53b.

[0018] Therefore, when a pair of half bodies 50, 50 are butted together so as to sandwich the drive pipe 7, the protruding piece 54 of one half body 50 is inserted into the insertion hole 55 of the other half body 50 and fits together, and the recessed portion 53a and the protruding portion 53b fit together at the butting surface 53, forming a tubular body shape for the bobbin 5, which can be attached to the drive pipe 7 with good workability. The self-tapping drill screw 8, which has one end 40 of the drive rope 4 secured thereto, is passed through the screw hole 56 of the bobbin 5 and then tightened and fixed to the drive pipe 7 (FIG. 3). Thereafter, as shown in FIG. 4, the drive rope 4 is wound around the groove 52 on the outer periphery 51 of the bobbin 5 a desired number of times, such as five times, and the other end 41 is wound around the pulley 6 and then secured by a separate drill screw 8. The separate drill screw 8 is then passed through another screw hole 56 (see FIG. 5) and then tightened and fixed to the drive pipe 7.

[0019] Thus, as shown in Fig. 6A, when the solar panels 3 (shading curtains) are fully open with all first to third layers positioned at the same position, the sun S is irradiated onto the plants in the greenhouse 1. When the drive pipe 7, i.e., the bobbin 5, is rotated forward from this fully open state of the solar panels 3, the drive rope 4 is wound onto the bobbin 5 without getting tangled on the outer periphery 51 of the bobbin 5, and the solar panels 3 are configured to slide freely (see Fig. 6B). Therefore, the drive rope 4 can slide by the amount that it is wound around the bobbin 5, and for example, the solar panels 3 (shading curtains) on the second and third layers are slid in the directions indicated by symbols P1 and P2 so that the overlapping width W of the upper and lower solar panels 3 on each layer 1, 2, and 3 is approximately 18 mm, as shown in Figures 6B and 7A. In this state, each solar panel 3 receives sufficient light from the sun S, and can store and use the maximum amount of solar power generation energy. When the bobbin 5 is rotated in the reverse direction, the spool 1 slides in the reverse direction by the amount of winding around the bobbin 5, and returns to the original position in the fully open state as shown in FIG. 6A. The number of times that one end 40 of the drive rope 4 is wound around the groove 51 of the bobbin 5 can be set according to the sliding range of the solar panel 3.

[0020] The above describes the embodiments based on the drawings. However, it should be noted that the present invention is not limited to the illustrated examples, and includes the range of design modifications and application variations that are normally made by those skilled in the art, provided that they do not deviate from the technical concept of the present invention. [Explanation of symbols]

[0021] 1. Greenhouse 10 one side 11 Other side 2. Ceiling 3 Solar panels (blackout curtains) 4 Drive rope 40 one end 41 other end 5 bobbins 50 Half Body 51 Outer circumference 52 Groove 53 butt surface 53a Recess 53b Convex part 54 Projecting piece 54a Locking tip 54b Locking part 55 Insertion hole 56 screw holes 6 Pulleys 7 Drive Pipe 8 drill screws 9. Wooden House W overlap width dimension G Frontage T Depth S sun P1, P2 movement direction

Claims

1. In a slit-type sliding blackout curtain in which a plurality of solar panels are used as blackout curtains and can be freely slid on the ceiling of a greenhouse, (a) A bobbin consisting of a pair of halves is detachably attached to a drive pipe in a tubular state on one side of the greenhouse, and a pulley is attached to the other side. (b) one end of the drive rope is fixed to the bobbin and wound around the outer circumferential groove of the bobbin a desired number of times, and the other end is wound around the pulley and then fixed to the bobbin; (c) the solar panel is fixed to the drive rope; (d) When the drive pipe rotates, the drive rope is wound around the bobbin without becoming tangled around the outer periphery of the bobbin, allowing the solar panel to slide freely. A bobbin for a slit-type sliding blackout curtain, characterized by:

2. The pair of halves forming the bobbin are of the same size and shape, and a protruding piece with a locking tip is formed at one end of the butting surface of each halve, and a fitting hole is formed at the other end. the pair of half bodies are such that the protruding piece of one half body is fitted into the fitting hole of the other half body to form a bobbin in a tubular state; 2. The bobbin for a slit-type sliding light-blocking curtain according to claim 1,

3. The bobbin has a screw hole on its outer periphery into which a drill screw can be screwed, The bobbin, which is made up of a pair of halves, is attached to the drive pipe so as to sandwich the drive pipe therebetween, the drill screw, to which one end of the drive rope is fastened, is passed through a screw hole of the bobbin and then screwed into the drive pipe and fixed thereto; the other end of the drive rope is fastened to the bobbin by a separate drill screw, which is passed through the screw hole and then screwed into the drive pipe and fixed thereto; 3. The bobbin for a slit-type sliding light-blocking curtain according to claim 1 or 2,

4. the number of times that one end of the drive rope is wound around the groove of the bobbin is set according to the sliding range of the solar panel; 2. The bobbin for a slit-type sliding light-blocking curtain according to claim 1,

5. Instead of the solar panel, it is applied to a shading sheet or a shading sheet panel; Alternatively, it is applied to a shading sheet or a shading sheet panel together with the solar panel, 2. The bobbin for a slit-type sliding light-blocking curtain according to claim 1,

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