Method for removing sunshade devices and sunshade sheets

Abstract

Multiple guide rope sections 30 are provided for each pair of opposing guide sections and fixing sections, with one end inserted through the guide section of the pair and the other end fixed to the fixing section of the pair. Multiple suspension sections 40 are provided on each of the multiple guide rope sections and are supported to move along the longitudinal direction of the guide rope section and are detachably suspended. The sunshade sheet section 50 has a length corresponding to the longitudinal length of the guide rope section and is attached to the bottom of each of the multiple suspension sections. Sheet operation rope sections 60 are attached to both ends of the sunshade sheet section in the longitudinal direction, allowing the sunshade sheet section to be moved by the operator. The guide rope control unit 70 is fixed to one end of each of the multiple guide rope sections and can simultaneously tension or loosen the multiple guide rope sections.

Description

Technical Field

[0001] The present invention relates to a sunshade device and a method for removing a sunshade sheet.

Background Art

[0002] Conventionally, there are technologies related to sunshade devices that are installed on buildings or installed independently of buildings. For example, Japanese Patent Application Laid-Open No. 2007-161476 (Patent Document 1) discloses a moving system using a winch that performs various operations by moving a suspended wire rope with a winch. This moving system moves the wire rope while eliminating the slack generated in the wire rope with the winch. Thereby, it is said that the wire rope can be smoothly moved without problems regarding the tension of the wire rope and the load of the net or sheet.

[0003] Also, Japanese Patent Application Laid-Open No. 2015-209756 (Patent Document 2) discloses a tent opening / closing device including a tent, a plurality of rod-shaped bodies, a guide, a moving pulley, a guiding rope, a driving rope, and a winch. Here, the tent is formed of a single or a plurality of sheets divided according to the size of the frame forming the roof of the space part, and the plurality of rod-shaped bodies are horizontally installed at desired intervals along a direction intersecting the opening / closing direction of the tent. Also, the guide is attached to the rod-shaped body at the tip of the tent, and the moving pulley is attached to another rod-shaped body. Also, the guiding rope is stretched along the opening / closing direction of the tent and the moving pulley is movably attached, the driving rope is stretched along the opening / closing direction of the tent and the guide is fixed, and the winch moves the driving rope. Also, the guide is configured to be adjustable in the stretching direction with respect to the driving rope, and the moving pulley is configured to be adjustable in the vertical direction with respect to the guiding rope. Thereby, it is said that the opening / closing of the tent can be smoothly performed and the installation work can be facilitated.

[0004] Furthermore, Japanese Patent Publication No. 2017-186800 (Patent Document 3) discloses an opening and closing device comprising a movable frame and a connecting member. In this device, the movable frame is supported so as to be movable back and forth relative to the roof frame, and the sunshade is opened and closed by being pulled back and forth by a rope. The connecting member connects the rope to the movable frame and, by clamping the rope, can switch between a holding state in which the rope is held and a release state in which the rope is released. This makes it possible to easily connect the rope to the movable frame while suppressing slack in the rope.

[0005] Furthermore, Japanese Utility Model Registration No. 3137371 (Patent Document 4) discloses a sunshade device comprising a net storage side support section, a net extension side support section, a plurality of guide ropes, a plurality of net guide rings, a sunshade net, and net extension ropes. Here, the net extension side support section is located at a predetermined distance from the net storage side support section, and the plurality of guide ropes are stretched in parallel at predetermined intervals between the net storage side support section and the net extension side support section. The plurality of net guide rings move along the guide ropes between the net storage side support section and the net extension side support section, and the sunshade net is attached to the net guide rings and stored or extended between the net storage side support section and the net extension side support section. The net extension ropes move the net guide rings at the net extension side end to which the sunshade net is attached between the net extension side support section and the net storage side support section. This makes it easy to create widespread shade in large areas such as schoolyards.

[0006] Furthermore, Japanese Patent Publication No. 2021-008743 (Patent Document 5) discloses a sunshade comprising a sunshade sheet and a frame. In this sunshade, the sunshade sheet can be opened and closed between an open state and a closed state, and the frame consists of a plurality of support columns and a beam spanning between these columns, supporting the sunshade sheet. In addition, each support column is independently extendable and retractable, and is equipped with a fixing mechanism that can fix the extended length of the support columns at multiple positions. Furthermore, the fixing of the extended length of the plurality of support columns can be set for each support column, and by extending and retracting the support columns, unevenness of the ground is adjusted and the horizontal position of the beam is maintained. This allows for simple and quick assembly and disassembly.

[0007] Furthermore, Japanese Patent Publication No. 2025-127056 (Patent Document 6) discloses a pergola-type awning device comprising a girder member, support columns, rail members, and a covering member. Here, the girder member extends laterally, and the support columns support the girder member. The rail members extend laterally along the girder member, and the covering member is guided by the rail members to extend or retract. In addition, the girder member is provided with a hooking portion on its side surface, and the rail member is provided with a hooking portion on the surface opposite to the side surface that hooks onto the hooking portion. This is said to improve assembly workability and design aesthetics. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2007-161476 [Patent Document 2] Japanese Patent Publication No. 2015-209756 [Patent Document 3] Japanese Patent Publication No. 2017-186800 [Patent Document 4] Utility Model Registration No. 3137371 Gazette [Patent Document 5] Japanese Patent Publication No. 2021-008743 [Patent Document 6] Japanese Patent Publication No. 2025-127056 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] Typically, sunshade systems consist of a sunshade sheet stretched from the ground to a high point via multiple guide ropes to block sunlight. Therefore, when installing or removing the sunshade sheet, workers must climb ladders or other equipment from the ground to the high point where the guide ropes are located, and then use tools such as screwdrivers to attach or detach the sheet, which is time-consuming and laborious. Furthermore, in severe weather conditions such as typhoons, it is necessary to remove the sunshade sheet from the high point, which places a significant burden on workers.

[0010] Here, the technologies described in Patent Documents 1-4 are technologies for opening and closing a sunshade sheet horizontally using a rope. The technology described in Patent Document 5 is a technology for adjusting the height of the sunshade sheet by extending and retracting a support column vertically. The technology described in Patent Document 6 is a technology for improving the ease of assembly and design of a sunshade device. Therefore, the technologies described in Patent Documents 1-6 cannot solve the above problem because the sunshade sheet cannot be easily attached or removed.

[0011] Therefore, the present invention has been made to solve the above-mentioned problems, and aims to provide a sunshade device and a method for removing a sunshade sheet that allows workers to easily remove the sunshade sheet without having to climb to a high place using tools such as ladders. [Means for solving the problem]

[0012] The sunshade device according to the present invention comprises a first support column, a plurality of guide sections, a second support column, a plurality of fixing sections, a plurality of guide rope sections, a plurality of suspension sections, a sunshade sheet section, a sheet operating rope section, and a guide rope control section. Here, the first support column has at least two column sections and a beam section connecting the two column sections. The plurality of guide sections are provided along the longitudinal direction of the beam section of the first support column, with predetermined guide intervals between them. The second support column has at least two column sections and a beam section connecting the two column sections, and the beam section is provided facing the beam section of the first support column at a predetermined distance from the first support column. The plurality of fixing sections are provided along the longitudinal direction of the beam section of the second support column, with the guide intervals between them, and are arranged facing each of the plurality of guide sections. Multiple guide rope sections are provided for each pair of opposing guide sections and fixing sections, with one end inserted through the guide section of the pair and the other end fixed to the fixing section of the pair. Multiple suspension sections are provided on each of the multiple guide rope sections, and are supported so as to be movable along the longitudinal direction of the guide rope section and are detachably suspended. The sunshade sheet section has a length corresponding to the longitudinal length of the guide rope section and is attached to the lower part of each of the multiple suspension sections. Sheet operation rope sections are attached to each of the longitudinal ends of the sunshade sheet section, and the sunshade sheet section can be moved by the operator. The guide rope control unit is fixed to one end of each of the multiple guide rope sections and is capable of simultaneously tensioning or loosening the multiple guide rope sections. Furthermore, the guide rope control unit simultaneously tensions the multiple guide rope sections to lift them upward and move the sunshade sheet to a higher position, and simultaneously slackens the multiple guide rope sections to lower them downward and move the sunshade sheet to a lower position.

[0013] The present invention relates to a method for removing a sunshade sheet from a sunshade device comprising a plurality of guide parts, a plurality of fixing parts, a plurality of guide rope parts, a plurality of suspension parts, a sunshade sheet part, and a sheet operating rope part, and comprises a lowering step and a removal step. The lowering step involves simultaneously loosening the plurality of guide rope parts, thereby lowering the plurality of guide rope parts downward and moving the sunshade sheet part to a lower position. The removal step involves removing the sunshade sheet part by detaching the suspension parts from the plurality of guide rope parts. [Effects of the Invention]

[0014] According to the present invention, workers can easily remove sunshade sheets without having to climb to high places using tools such as ladders. [Brief explanation of the drawing]

[0015] [Figure 1] Figure 1A shows a front view and Figure 1B show an example of a sunshade device according to an embodiment of the present invention. [Figure 2] The cross-sectional view shown is along line AA, and the cross-sectional view shown is along line BB, illustrating an example of a sunshade device according to an embodiment of the present invention. [Figure 3] This is a flowchart showing the method for removing and installing a sunshade sheet according to an embodiment of the present invention. [Figure 4] Figure 4A shows an example of a sunshade device according to an embodiment of the present invention, where the sunshade sheet is unfolded, and Figure 4B shows an example of a sunshade sheet being folded. [Figure 5] Figure 5A shows a plan view of an example of a sunshade device according to an embodiment of the present invention, where the sunshade sheet is unfolded, and Figure 5B shows a plan view of an example of a sunshade sheet being folded. [Figure 6] Figure 6A shows a plan view of an example where the sunshade sheet portion is moved to the vicinity of the center of the guide rope portion in a sunshade device according to an embodiment of the present invention, and Figure 6B shows a plan view of an example where the guide rope portion is suspended. [Figure 7] In the sunshade device according to an embodiment of the present invention, FIG. 7A shows an example when the winch is rotated in the direction of winding up the lowering side wire, and FIG. 7B shows an example when the winch is rotated in the direction of winding up the ascending side wire. [Figure 8] It is a figure which shows an example at the time of connecting an elevating part, a wire, and a winch by another connection method in the sunshade device which concerns on embodiment of this invention. [Figure 9] It is a figure which shows an example at the time of using a cylindrical part and a motor part for a guide rope operation part in the sunshade device which concerns on embodiment of this invention. [Figure 10] In the sunshade device according to an embodiment of the present invention, it is a left side view and a front view showing an example when the motor part is rotated in the forward direction. [Figure 11] In the sunshade device according to an embodiment of the present invention, it is a left side view and a front view showing an example when the motor part is rotated in the reverse direction. [Figure 12] In the sunshade device according to an embodiment of the present invention, it is a left side view and a front view showing an example when the cylindrical part is manually rotated by a winch. [Figure 13] In the sunshade device according to an embodiment of the present invention, in another configuration of the seat operation rope part, FIG. 13A shows an example when the sunshade seat part is deployed, and FIG. 13B shows an example when the sunshade seat part is folded. [Figure 14] In the sunshade device according to an embodiment of the present invention, it is a perspective view (FIG. 14A) showing an example when the sunshade seat part is deployed, and a front view (FIG. 14B) showing an example when the sunshade seat part is moved near the center of the guide rope part. [Figure 15] It is a perspective view which shows an example at the time of moving the sunshade seat part near the center of a guide rope part in the sunshade device which concerns on embodiment of this invention [Figure 16] It is a perspective view which shows an example at the time of hanging down a guide rope part in the sunshade device which concerns on embodiment of this invention. [Figure 17]This is a perspective view showing an example of a sunshade device according to an embodiment of the present invention, in which a sunshade sheet is removed by hanging down a plurality of guide ropes. [Figure 18] This is a perspective view showing an example of removing the suspension portion from the guide rope portion in a sunshade device according to an embodiment of the present invention. [Modes for carrying out the invention]

[0016] The following describes embodiments of the present invention with reference to the attached drawings to facilitate understanding of the invention. Note that the following embodiments are merely examples of the present invention and do not limit the technical scope of the invention.

[0017] As shown in Figures 1 and 2, the sunshade device 1 according to an embodiment of the present invention comprises a first support column 10, a plurality of guide columns 11, a second support column 20, a plurality of fixing columns 21, a plurality of guide rope columns 30, a plurality of suspension columns 40, a sunshade sheet 50, a sheet operating rope column 60, and a guide rope control column 70.

[0018] Here, the first support column 10 has at least two column sections 10a and 10b, and a beam section 10c connecting the two column sections 10a and 10b. There are no particular limitations on the configuration of the first support column 10, but for example, the lower ends of the two column sections 10a and 10b in the longitudinal direction can be embedded in the ground G. This makes it possible to make the first support column 10 stand upright more firmly. There are no particular limitations on the structure of the first support column 10, but for example, two more column sections 10d and 10e and a beam section 10f can be provided at positions facing the two column sections 10a and 10b and the beam section 10c, and a structure can be provided in which the beam section 10c and the beam section 10f are connected by a plurality of small beam sections 10g. This makes it possible to make the first support column 10 stand upright more stably.

[0019] Furthermore, the multiple guide sections 11 are provided along the longitudinal direction of the beam section 10c of the first support section 10, with a predetermined guide interval La between them. There are no particular limitations on the guide sections 11, but examples include pulleys and rings.

[0020] Furthermore, the second support section 20 has at least two column sections 20a and 20b and a beam section 20c connecting the two column sections 20a and 20b, and the beam section 20c is provided facing the beam section 10c of the first support section 10, at a predetermined distance Lb from the first support section 10. There are no particular limitations on the configuration and structure of the second support section 20, but it can have the same configuration and structure as the first support section 10.

[0021] Furthermore, the multiple fixing parts 21 are provided along the longitudinal direction of the beam portion 20c of the second support portion 20, with a guide interval La between them, and are positioned facing each of the multiple guide portions 11. There are no particular limitations on the fixing parts 21, but examples include rings, clamps, etc., to which the guide rope portion 30 can be tied.

[0022] Furthermore, multiple guide rope sections 30 are provided for each pair of opposing guide sections 11 and fixing sections 21, with one end 30a inserted into the pair's guide section 11 and the other end 30b fixed to the pair's fixing section 21. Here, as described above, multiple guide sections 11 and multiple fixing sections 21 are provided at the same guide interval La, and opposing guide sections 11 and fixing sections 21 are treated as a pair. By providing guide rope sections 30 to each pair of guide sections 11 and fixing sections 21, the multiple guide rope sections 30 are stretched parallel to each other between the first support section 10 and the second support section 20. There are no particular limitations on the guide rope sections 30, but examples include resin ropes, metal ropes, metal chains, etc.

[0023] Furthermore, multiple suspension parts 40 are provided on each of the multiple guide rope sections 30, and are supported so as to be movable along the longitudinal direction of the guide rope section 30, and are also suspended so as to be detachable. There are no particular limitations on the configuration of the suspension parts 40, but for example, they can be equipped with pulleys or rollers that can be moved along the guide rope section 30. This allows the suspension parts 40 to move smoothly along the guide rope section 30. There are also no particular limitations on the attachment and detachment configuration of the suspension parts 40, but for example, snap hooks or clamps that can be attached and detached to the guide rope section 30 with a single touch can be used. This allows workers to attach and detach the suspension parts 40 to the guide rope section 30 without using special tools.

[0024] Furthermore, the sunshade sheet section 50 has a length corresponding to the distance Lb between the first support section 10 and the second support section 20, and is attached to the lower part of each of the multiple hanging sections 40. In other words, by fully extending the sunshade sheet section 50, the distance Lb between the first support section 10 and the second support section 20 can be covered. Here, the sunshade sheet section 50 is a sheet capable of blocking sunlight. Furthermore, there are no particular limitations on the material of the sunshade sheet section 50, but examples include polyethylene resin, polyester resin, acrylic resin, polyvinyl chloride resin, etc., and the sunshade sheet section 50 can be, for example, a tarpaulin sheet (a sheet made by coating both sides of a polyester resin sheet with polyvinyl chloride resin).

[0025] Furthermore, there is no particular limit to the number of sunshade sheets 50, but for example, considering the distance Lb between the first support column 10 and the second support column 20, and the length in the longitudinal direction of the beam portion 10c of the first support column 10 or the beam portion 20c of the second support column 20, it can be set to a range of 1 to 5 sheets. Furthermore, there is no particular limit to the number of guide ropes 30 that guide one sunshade sheet 50, but for example, considering the length in the longitudinal direction of the sunshade sheet 50 and the length in the short direction of the sunshade sheet 50, it can be set to a range of 2 to 5 ropes. Furthermore, there is no particular limit to the number of multiple guide portions 11 and multiple fixing portions 21, but for example, the same number as the number of guide ropes 30 can be provided. In the example shown in Figure 1B, the number of sunshade sheets 50 is 2, the number of guide ropes 30 is 3 for one sunshade sheet 50 and 6 for two sunshade sheets 50, and the number of multiple guides 11 and multiple fixing parts 21 is 6 for each of the two sunshade sheets 50.

[0026] Furthermore, the sheet operation ropes 60 are attached to both ends of the sunshade sheet 50 in the longitudinal direction, allowing the sunshade sheet 50 to be moved by the operator. This allows the operator to use the two sheet operation ropes 60 to move both ends of the sunshade sheet 50 in the longitudinal direction to the first support column 10 and the second support column 20, respectively, thereby unfolding the sunshade sheet 50 along the guide rope 30. In addition, the operator can fix the two sheet operation ropes 60 to the first support column 10 and the second support column 20, respectively, to hold the sunshade sheet 50 in the unfolded state. On the other hand, the operator can use the two sheet operation ropes 60 to move both ends of the sunshade sheet 50 in the longitudinal direction towards either the first support column 10 or the second support column 20, thereby folding the sunshade sheet 50. In this way, the sunshade sheet 50 can be easily unfolded or folded by the operator's operation of the sheet operation rope 60.

[0027] There are no particular limitations on the sheet operation rope section 60, but for example, like the guide rope section 30 described above, it can be made of resin or metal. Also, there are no particular limitations on the number of sheet operation rope sections 60, but for example, one to three ropes may be attached to each of the longitudinal ends of one sunshade sheet section 50, or they may be attached to other parts of the sunshade sheet section 50, such as the center, in addition to the longitudinal ends. In Figure 1B, two sheet operation rope sections 60 are attached to each of the longitudinal ends of one sunshade sheet section 50.

[0028] Furthermore, the guide rope control unit 70 has one end 30a of each of the multiple guide rope sections 30 fixed to it, and it is possible to simultaneously tension or loosen the multiple guide rope sections 30. Here, by simultaneously tensioning the multiple guide rope sections 30, the guide rope control unit 70 can lift the multiple guide rope sections 30 upwards and move the sunshade sheet section 50 to a higher position. Conversely, by simultaneously loosening the multiple guide rope sections 30, the guide rope control unit 70 can lower the multiple guide rope sections 30 downwards and move the sunshade sheet section 50 to a lower position. As a result, it is possible for workers to easily remove the sunshade sheet without having to climb to a high place using tools such as ladders.

[0029] Next, with reference to Figures 3-6, a method for attaching and detaching the sunshade sheet according to an embodiment of the present invention will be specifically described. First, as shown in Figures 4A and 5A, two sunshade sheet sections 50 are unfolded between the first support section 10 and the second support section 20, and each of the multiple sheet operating rope sections 60 is tied and fixed to the first support section 10 and the second support section 20, respectively. In this state, the sunshade sheet sections 50 block sunlight, thereby forming shade below. This reduces the irradiation of direct sunlight and suppresses the rise in temperature.

[0030] Here, for example, if it becomes necessary to fold the sunshade sheet section 50 due to bad weather such as rain, the worker can, for example, untie the sheet operation rope section 60 tied to the second support section 20, and then move toward the first support section 10 facing the second support section 20 with the untie sheet operation rope section 60. Then, as shown in Figures 4B and 5B, the two sunshade sheet sections 50 will fold and move from the second support section 20 toward the first support section 10, thereby allowing the sunshade sheet section 50 to be folded.

[0031] In this way, the sunshade sheet section 50 can be widely extended or folded into a small size by the operator's operation of the sheet operation rope section 60.

[0032] Now, if it becomes necessary to remove the sunshade sheet section 50 due to reasons such as bad weather like a typhoon, the worker unties the multiple sheet operation ropes 60 that are tied to the first support section 10 and the second support section 20, respectively, and as shown in Figure 6A, the worker moves the multiple sheet operation ropes 60 towards the center of the first support section 10 and the second support section 20, thereby moving the sunshade sheet section 50 towards the center in the longitudinal direction of the multiple guide ropes 30 (Figure 3: S101).

[0033] Here, there are no particular limitations on how the sunshade sheet section 50 is moved, but in Figure 6A, the worker first unties the sheet operating rope section 60 tied to the first support section 10, moves the sheet operating rope section 60 to the vicinity of the longitudinal center of the multiple guide rope sections 30, and then unties the sheet operating rope section 60 tied to the second support section 20, and moves the sheet operating rope section 60 to the vicinity of the longitudinal center of the multiple guide rope sections 30.

[0034] Once the movement of the sunshade sheet section 50 is complete, the worker then uses the guide rope control unit 70 to simultaneously slacken the multiple guide rope sections 30, as shown in Figure 6B, thereby lowering the multiple guide rope sections 30 simultaneously (Figure 3: S102).

[0035] There are no particular limitations on the method for simultaneously loosening the multiple guide rope sections 30, but for example, as will be described later, one method is to operate a member to which one end of each of the multiple guide rope sections 30 is fixed. This makes it possible to move the multiple guide rope sections 30 that are located at a high position to a lower position, and also to move the sunshade sheet sections 50 that are hung on the multiple guide rope sections 30 to a lower position.

[0036] Once the simultaneous slackening of the multiple guide rope sections 30 is complete, the worker removes the sunshade sheet section 50 by detaching the suspension section 40 to which the sunshade sheet section 50 is fixed from the multiple guide rope sections 30 (Figure 3: S103).

[0037] There are no particular limitations on how the suspension part 40 is removed, but for example, if the suspension part 40 is made of a snap hook, the worker can remove the suspension part 40 from the guide rope part 30 by detaching the snap hook from the guide rope part 30. This allows the worker to easily remove the sunshade sheet part 50 at ground level without having to climb to a high place using tools such as a ladder. In particular, if the sunshade sheet part 50 may cause secondary damage due to bad weather such as a typhoon, the worker can easily lower the sunshade sheet part 50 to a low position and remove it, thereby improving the convenience of the sunshade device 1.

[0038] By the way, if the weather improves and it becomes necessary to install the sunshade sheet section 50, the reverse of the above process should be carried out. That is, first, the worker installs the sunshade sheet section 50 by attaching the suspension section 40 to which the sunshade sheet section 50 is fixed to multiple guide rope sections 30 (Figure 3: S201).

[0039] There are no particular limitations on the method of attaching the suspension part 40, but as mentioned above, if the suspension part 40 is made of a snap hook, the worker can easily attach the suspension part 40 to the guide rope part 30 by hooking the snap hook onto the guide rope part 30.

[0040] Once the installation of the sunshade sheet section 50 is complete, the worker then uses the guide rope control unit 70 to simultaneously tension the multiple guide rope sections 30, thereby lifting the multiple guide rope sections 30 simultaneously (Figure 3: S202).

[0041] There are no particular limitations on the method of simultaneously tensioning the multiple guide rope sections 30, but for example, as described above, one method is to operate a member to which one end of each of the multiple guide rope sections 30 is fixed. This makes it possible to move the multiple guide rope sections 30 and the sunshade sheet section 50, which are located at a low position, to a higher position.

[0042] Now, once the simultaneous tensioning of the multiple guide rope sections 30 is complete, the worker then moves the multiple sheet operating rope sections 60 to the first support section 10 and the second support section 20, respectively, to unfold the sunshade sheet section 50 along the longitudinal direction of the multiple guide rope sections 30 (Figure 3: S203).

[0043] Here, there are no particular limitations on how the sunshade sheet section 50 is deployed, but for example, a worker can move one of the multiple sheet operation rope sections 60, specifically the one attached to one end of the sunshade sheet section 50 in the longitudinal direction, to the first support section 10 and tie it to the first support section 10. This deploys one end of the sunshade sheet section 50 in the longitudinal direction to the first support section 10. Next, the worker can move the other end of the sunshade sheet section 50 in the longitudinal direction to the second support section 20 and tie it to the second support section 20. This deploys the other end of the sunshade sheet section 50 in the longitudinal direction to the second support section 20, allowing the sunshade sheet section 50 to be deployed along the longitudinal direction of the multiple guide rope sections 30. In this way, a worker can easily attach and deploy the sunshade sheet section 50 while remaining on the ground.

[0044] By the way, above we have described the basic functions of the guide rope control unit 70, but next we will specifically describe the configuration of the guide rope control unit 70. The guide rope control unit 70 may include, for example, a lifting unit 71, a wire 72, and a winch 73, as shown in Figures 1 and 2.

[0045] Here, the lifting section 71 is provided so as to be vertically movable between the two column sections 10a and 10b of the first support column 10. There are no particular limitations on the shape of the lifting section 71, but examples include a rectangular parallelepiped, beam, or plate with a width corresponding to the distance between the two column sections 10a and 10b of the support column 10. There are no particular limitations on the configuration of the lifting section 71, but for example, grooves can be provided on the opposing surfaces of the two column sections 10a and 10b of the support column 10, and the longitudinal ends of the lifting section 71 can be fitted into the grooves. This allows the lifting section 71 to move smoothly vertically between the two column sections 10a and 10b of the first support column 10. Furthermore, the two column sections 10a and 10b of the first support column 10 can be provided with, for example, positioning limiting sections 10a1, 10a2, 10b1, 10b2, etc., to restrict the vertical movement of the lifting section 71. This prevents the lifting section 71 from moving to an unexpected position, which could cause accidents or malfunctions.

[0046] Furthermore, the lifting section 71 fixes one end 30a of the multiple guide rope sections 30 in the longitudinal direction. There are no particular limitations on the method of fixing the lifting section 71, but for example, a ring can be provided at the upper end of the lifting section 71 and one end 30a of the multiple guide rope sections 30 in the longitudinal direction can be tied to the ring. Alternatively, for example, a clamp can be provided at the upper end of the lifting section 71 and one end 30a of the multiple guide rope sections 30 in the longitudinal direction can be clamped with the clamp.

[0047] Furthermore, the wire 72 is attached to the lifting section 71. There are no particular limitations on the wire 72, but examples include resin wires or metal wires, as seen in the guide rope section 30 and the seat operating rope section 60.

[0048] Furthermore, the winch 73 can wind up or unwind the wire 72. There are no particular limitations on where the winch 73 can be attached, but examples include predetermined positions on the column portions 10a and 10b of the first support column 10.

[0049] The guide rope control unit 70 then moves the lifting unit 71 downward by paying out the wire 72, simultaneously tensioning the multiple guide rope sections 30, and moves the lifting unit 71 upward by winding up the wire 72, simultaneously slackening the multiple guide rope sections 30. This makes it possible to easily tension or slacken the multiple guide rope sections 30.

[0050] By the way, to explain the specific method of connecting the lifting unit 71, the wire 72, and the winch 73, as shown in Figures 7A and 7B, the wire 72 consists of a lowering wire 72a and an upward wire 72b. The lowering wire 72a extends from the winch 73, is guided by guides 74a, 74b, and 74c, and is fixed to the fixing part 71a of the lifting unit 71 from below. The upward wire 72b also extends from the winch 73, is guided by guides 74a and 74b, and is fixed to the fixing part 71a of the lifting unit 71 from above.

[0051] As a result, as shown in Figure 7A, when the winch 73 is rotated in the direction of winding the descending wire 72a, the descending wire 72a applies force in the direction of lowering the lifting section 71, causing the lifting section 71 to descend. This allows the operator to rotate the winch 73 and tension multiple guide rope sections 30 simultaneously.

[0052] On the other hand, as shown in Figure 7B, when the winch 73 is rotated in the direction of winding up the upward wire 72b, the upward wire 72b applies force in the direction of raising the lifting section 71, causing the lifting section 71 to rise. As a result, the worker can simultaneously slacken multiple guide rope sections 30 by rotating the winch 73 in the reverse direction.

[0053] Incidentally, in addition to the descending wire 72a and the ascending wire 72b, a guide wire 72c may also be provided. Here, the guide wire 72c is stretched to circle around between the guide section 75a provided on the beam section 10c of the first support section 10 and the guide section 75b provided directly below the guide section 75a. Furthermore, a part of the guide wire 72c is fixed to another fixing section 71b of the lifting section 71. This allows the guide wire 72c to stably guide the lifting and lowering of the lifting section 71.

[0054] Furthermore, as shown in Figure 8, the lifting section 71, the wire 72, and the winch 73 can also be connected by a different connection method. In this connection method, the wire 72 consists of a lowering wire 72a, an upward wire 72b, and an intermediate wire 72d. The lowering wire 72a extends from the winch 73, is guided by guides 74g and 74f, and is fixed from below to the fixed part 71b of the lifting section 71. The upward wire 72b extends from the winch 73, is guided by guides 74a and 74b, and is fixed from above to the fixed part 71a of the lifting section 71. The intermediate wire 72d extends from below the fixed part 71a of the lifting section 71, is guided by guides 74c, 74d, and 74e, and is fixed to the upper side of the fixed part 71b of the lifting section 71.

[0055] As a result, when the winch 73 is rotated in the direction of winding the descending wire 72a, the descending wire 72a applies force in the direction of lowering the lifting section 71, and at the same time, the intermediate wire 72d also applies force in the direction of lowering the lifting section 71, causing the lifting section 71 to descend. This allows the operator to rotate the winch 73 and tension multiple guide rope sections 30 simultaneously.

[0056] On the other hand, when the winch 73 is rotated in the direction of winding up the upward wire 72b, the upward wire 72b applies force in the direction of raising the lifting section 71, and at the same time, the intermediate wire 72d also applies force in the direction of raising the lifting section 71, causing the lifting section 71 to rise. As a result, the worker can simultaneously slacken multiple guide rope sections 30 by rotating the winch 73 in the reverse direction.

[0057] Next, let's describe another configuration of the guide rope control unit 70. Here, the guide rope operating unit 70 may include a cylindrical part 76 (rotating drum) and a motor part 77, as shown in Figure 9.

[0058] Here, the cylindrical section 76 is rotatably mounted between the two columns 10a and 10b of the first support section 10. There are no particular limitations on the configuration of the cylindrical section 76, but for example, if the guide rope section 30 is a rope, the cylindrical section 76 may be a simple drum, and if the guide rope section 30 is a chain, the cylindrical section 76 may be a chain drum (winding drum). Furthermore, the cylindrical section 76 may be provided with partition sections 76a to separate the positions where multiple guide rope sections 30 wrap around the cylindrical section 76. This makes it possible to wrap multiple guide rope sections 30 around the cylindrical section 76 at appropriate positions and prevents the multiple guide rope sections 30 from intersecting each other.

[0059] Furthermore, the cylindrical portion 76 fixes one end 30a of the multiple guide rope portions 30 in the longitudinal direction. There are no particular limitations on the method of fixing the cylindrical portion 76, but as mentioned above, rings and clamps can be used.

[0060] Furthermore, the motor unit 77 is attached to one end 76b of the cylindrical unit 76. There are no particular limitations on the configuration of the motor unit 77, but for example, it may be equipped with a wired or wireless controller for an operator to control the motor from the ground.

[0061] Furthermore, when the motor unit 77 of the guide rope control unit 70 is rotated in the forward direction, the cylindrical unit 76 is rotated in the forward direction, simultaneously winding up and tensing the multiple guide rope units 30. That is, as shown in Figure 10, when the motor unit 77 rotates in the forward direction, the multiple guide rope units 30 are simultaneously tensed, allowing the sunshade sheet unit 50 to be moved to a higher position.

[0062] Furthermore, when the motor unit 77 of the guide rope control unit 70 is rotated in the reverse direction, the cylindrical unit 76 is rotated in the reverse direction, simultaneously unwinding and slackening multiple guide rope units 30. That is, as shown in Figure 11, when the motor unit 77 rotates in the reverse direction, multiple guide rope units 30 slacken simultaneously, allowing the sunshade sheet unit 50 to be moved to a lower position. This makes it possible to easily tension or slacken multiple guide rope units 30, as described above.

[0063] By the way, other configurations can be adopted for the cylindrical section 76. For example, as shown in Figure 12, a configuration can be adopted in which an operator manually rotates the cylindrical section 76. In this configuration, a winch 79 is provided below the cylindrical section 76, and a chain 78 is provided between the winch 79 and the cylindrical section 76. When the operator rotates the winch 79, the rotation of the winch 79 is transmitted to the cylindrical section 76 via the chain 78, causing the cylindrical section 76 to rotate. This allows the operator to manually rotate the cylindrical section 76.

[0064] Furthermore, while the sheet operation rope section 60 was simply configured to hang from either or both of the longitudinal ends of the sunshade sheet section 50, other configurations can be adopted. For example, as shown in Figures 13A and 13B, the sheet operation rope section 60 can also be configured to hang from either or both of the first support section 10 and the second support section 20. In this configuration, a pulley 61 is provided on the first support section 10, and a pulley 62 is provided on the second support section 20. The sheet operation rope section 60 is also composed of a folding rope section 60a, an unfolding rope section 60b, and a rooting rope section 60c. The folding rope section 60a is attached to the longitudinal end 50a of the sunshade sheet section 50, extends towards the first support section 10, and is guided downwards from the first support section 10 by the pulley 61. Furthermore, the deployment rope section 60b is attached to the longitudinal end 50a of the sunshade sheet section 50, extends toward the second support column section 20, and is guided downward by the pulley 62 toward the first support column section 10. Also, the rooting rope section 60c is attached to the longitudinal base end 50b of the sunshade sheet section 50, extends toward the first support column section 10, and is guided downward by the pulley 61. In this configuration, when a worker pulls the rooting rope section 60c and fixes it to the first support column section 10, the base end 50b of the sunshade sheet section 50 moves toward the vicinity of the first support column section 10 and is fixed in place.

[0065] Furthermore, as shown in Figure 13A, when a worker pulls the deployment rope 60b toward the second support column 20, the tip 50a of the sunshade sheet 50 moves toward the second support column 20, and the sunshade sheet 50 is deployed. As a result, a worker can deploy the sunshade sheet 50 simply by standing near the second support column 20 and pulling the deployment rope 60b.

[0066] On the other hand, as shown in Figure 13B, when a worker pulls the folding rope portion 60a toward the first support portion 10, the tip portion 50a of the sunshade sheet portion 50 moves toward the first support portion 10, and the sunshade sheet portion 50 is folded. As a result, a worker can fold the sunshade sheet portion 50 simply by standing near the first support portion 10 and pulling the folding rope portion 60a. [Examples]

[0067] Examples and comparative examples of the present invention will be described below in detail, but the application of the present invention is not limited to these examples.

[0068] First, an embodiment of the sunshade device 1 according to the present invention was created based on Figures 1-11. Then, as shown in Figure 14A, the worker performed sunshade by unfolding the sunshade sheet portion 50 of the sunshade device 1. Here, the worker moved the sunshade sheet portion 50 to a higher position by simultaneously tensioning multiple guide rope portions 30 with the guide rope control unit 70, and unfolded the sunshade sheet portion 50 along the longitudinal direction of the multiple guide rope portions 30.

[0069] Next, when removing the sunshade sheet section 50, the worker moves the sunshade sheet section 50 to the vicinity of the center of the multiple guide rope sections 30 using the sheet operation rope section 60, as shown in Figure 14B. Then, the worker moves the sunshade sheet section 50 to a lower position by simultaneously slackening the multiple guide rope sections 30 using the guide rope control section 70.

[0070] Here, as shown in Figure 15, when the lifting section 71 is located downwards, the multiple guide rope sections 30 are simultaneously under tension, but as shown in Figure 16, when the lifting section 71 is located upwards, the multiple guide rope sections 30 are simultaneously relaxed.

[0071] As shown in Figure 17, the worker can remove the sunshade sheet 50 fixed to the suspension part 40 by detaching the suspension part 40 from the multiple guide rope parts 30. Here, as shown in Figure 18, since the suspension part 40 is a snap hook, the worker can easily remove the suspension part 40 without using any tools.

[0072] Thus, with the sunshade device 1 according to the present invention, workers can easily remove the sunshade sheet 50 without having to climb to a high place using tools such as a ladder. To reattach the sunshade sheet 50, simply reverse the above-described process. [Industrial applicability]

[0073] As described above, the sunshade device and sunshade sheet removal method according to the present invention are useful in the construction field, outdoor event field, heatstroke prevention equipment field, etc., and are effective as a sunshade device and sunshade sheet removal method that allows workers to easily remove the sunshade sheet without having to climb to high places using tools such as ladders. [Explanation of symbols]

[0074] 1. Sunshade device 10 First support section 11 Guide Section 20 Second support section 21 Fixed part 30 Guide rope section 40 Hanging part 50 Sunshade sheet section 60 Sheet operating rope section 70 Guide rope control unit

Claims

1. A first support column having at least two column sections and a beam section connecting the two column sections, A plurality of guide sections are provided along the longitudinal direction of the beam section of the first support section, with predetermined guide intervals between them, It has at least two column sections and a beam section connecting the two column sections, and the beam section is provided at a predetermined distance from the first support section, facing the beam section of the first support section, Along the longitudinal direction of the beam portion of the second support column, a plurality of fixing portions are provided with a gap between them and the guides, and are positioned facing each of the plurality of guide portions, Among the plurality of guide sections and the plurality of fixing sections, a plurality of guide rope sections are provided for each pair facing each other, one end of which is inserted through the guide section of the pair and the other end of which is fixed to the fixing section of the pair, Each of the aforementioned plurality of guide rope sections is provided with a plurality of suspension parts that are movably supported and detachably suspended along the longitudinal direction of the guide rope section, A sunshade sheet portion having a length corresponding to the distance between the first support portion and the second support portion, attached to the lower part of each of the plurality of hanging portions, A sheet operating rope section is attached to each of the longitudinal ends of the aforementioned sunshade sheet section, and the sunshade sheet section is movable by the operator's operation. A guide rope control unit is provided, to which one end of each of the multiple guide rope sections is fixed, and which is capable of simultaneously tensioning or loosening the multiple guide rope sections. Equipped with, The guide rope control unit simultaneously tensions the multiple guide rope sections, thereby lifting the multiple guide rope sections upward and moving the sunshade sheet section to a higher position, and simultaneously slackens the multiple guide rope sections, thereby lowering the multiple guide rope sections downward and moving the sunshade sheet section to a lower position. A sunshade device.

2. The aforementioned guide rope control unit comprises a lifting section, a wire, and a winch. The lifting mechanism is provided so as to be vertically movable between the two columns of the first support column, and fixes one end of the plurality of guide ropes in the longitudinal direction. The wire is attached to the lifting section. The winch is capable of unwinding or rewinding the wire. The guide rope control unit moves the lifting unit downward by unwinding the wire, thereby simultaneously tensing the multiple guide rope sections, and moves the lifting unit upward by winding the wire, thereby simultaneously slackening the multiple guide rope sections. The sunshade device according to claim 1.

3. The guide rope control unit comprises a cylindrical section and a motor section. The cylindrical portion is rotatably mounted between the two columnar portions of the first support portion, and fixes one end of the plurality of guide rope portions in the longitudinal direction. The motor unit is attached to one end of the cylindrical part. When the motor unit is rotated in the forward direction, the guide rope control unit rotates the cylindrical unit in the forward direction to simultaneously wind up and tension the multiple guide rope units, and when the motor unit is rotated in the reverse direction, the cylindrical unit rotates in the reverse direction to simultaneously unwind and slacken the multiple guide rope units. The sunshade device according to claim 1.

4. Multiple guide sections are provided with predetermined guide intervals between them, Multiple fixing parts are provided with a gap between them, and are positioned facing each of the multiple guide parts, Among the plurality of guide sections and the plurality of fixing sections, a plurality of guide rope sections are provided for each pair facing each other, one end of which is inserted through the guide section of the pair and the other end of which is fixed to the fixing section of the pair, Each of the aforementioned plurality of guide rope sections is provided with a plurality of suspension parts that are movably supported and detachably suspended along the longitudinal direction of the guide rope section, A sunshade sheet section attached to the lower part of each of the aforementioned multiple suspension parts, A sheet operating rope section is attached to each of the longitudinal ends of the aforementioned sunshade sheet section, and the sunshade sheet section is movable by the operator's operation. A method for removing the sunshade sheet of a sunshade device equipped with the following: The process involves simultaneously slackening the multiple guide rope sections, thereby lowering the multiple guide rope sections downwards and moving the sunshade sheet section to a lower position. The removal process involves removing the sunshade sheet by detaching the suspension portion from the multiple guide rope portions, A method for removing a sunshade device equipped with [a specific feature / feature].

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