Vinyl sheet holder remover

Abstract

To provide a vinyl sheet holder removal tool which has an excellent working feel and enables a vinyl sheet holder to be easily attached and detached from a pipe of a vinyl greenhouse. [Solution] The device comprises a grip 10, a base portion 11 provided at the base portion of the grip 10 so as to extend to both sides centered on the grip axis, a pair of engaging claw-equipped rotating members 20, 20 rotatably attached to one side of the base portion 11 on a plane substantially parallel to the grip axis so as to open and close as a pair, and having engaging claw portions 21 at their tips extending to the opposite side from the grip 10 side so as to hook onto a pair of edges extending in the longitudinal direction of a vinyl sheet holder having a C-shaped cross section, a fulcrum portion 12 provided on the other side of the base portion 11 so as to act as a fulcrum of a lever, and an elastic member 30 which biases the pair of engaging claw-equipped rotating members 20, 20 in the closing direction.

Description

[Technical field]

[0001] This invention relates to a vinyl sheet holder remover used when attaching and detaching a vinyl sheet holder, which is used by fitting it to a pipe in a vinyl greenhouse to hold a vinyl sheet, from the pipe. [Background technology]

[0002] Conventionally, the applicant has proposed a vinyl sheet holder remover for pipe houses (see Patent Document 1), which has a claw plate that opens and closes with a claw tip that digs into the holder, a handle and a fulcrum, and the work is performed by holding the handle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2001-161176 A (Page 1) Summary of the Invention [Problem to be solved by the invention]

[0004] The problem that we are trying to solve with regard to vinyl sheet holder removal tools is that with conventional tools, the longitudinal direction of the handle (grip) (grip axis) intersects with the direction in which the claw plate opens and closes (opening and closing surface), and the free end of the grip is used facing the worker, which means that the direction in which the claw tip is hooked onto the vinyl sheet holder makes it difficult to push in, and the effective span between the fulcrum and force point of the lever is shortened, making it difficult to achieve the force reduction effect based on the principle of leverage, making it impossible to obtain a better working feel.

[0005] SUMMARY OF THE PRESENT DEVICE AN IMPROVED WORK SYSTEM FOR USE IN A VINYL GARDEN SYSTEM SURFACE SYSTEM ... [Means for solving the problem]

[0006] In order to achieve the above object, the present invention has the following configuration. According to one embodiment of the vinyl sheet holder removal tool of the present invention, the vinyl sheet holder removal tool is used when attaching and detaching a vinyl sheet holder, which is used by fitting it to a pipe of a vinyl greenhouse when holding a vinyl sheet to the pipe, from the pipe. The tool comprises a grip held by an operator, a base portion provided at the base of the grip in a direction perpendicular to a grip axis extending in the longitudinal direction of the grip and extending to both sides of the grip axis as a center, and a pair of grips on the one side of the base portion in a plane substantially parallel to the grip axis. The vinyl sheet holder has a pair of engaging claw-equipped rotating members which are rotatably attached to the axis so as to open and close by means of a force applied to the pair of engaging claws at their tips extending opposite the grip side and which are adapted to hook onto a pair of edges extending in the longitudinal direction of the vinyl sheet holder and have a C-shaped cross-sectional shape; a fulcrum portion which protrudes from the base portion to the opposite side of the grip side on the other side of the base portion to act as a fulcrum of a lever; and an elastic member which biases the pair of engaging claws of the pair of engaging claw-equipped rotating members in the closing direction.

[0007] According to one embodiment of the vinyl sheet holder removal tool of the present invention, the vinyl sheet holder removal tool is used when attaching and detaching a vinyl sheet holder, which is used by fitting it to a pipe of a vinyl greenhouse to hold a vinyl sheet, from said pipe. The tool comprises a grip that is held during operation so that its free end extends away from the operator, a base portion that is provided so that the grip axis extending in the longitudinal direction of the grip continues from the base portion of the grip in a direction that is essentially reversed in a V-shape, and a pair of grips are provided at the end of the base portion within a plane perpendicular to the extension direction of the base portion. The vinyl sheet holder has a pair of engaging claw-equipped rotating members which are rotatably attached to the axis so as to open and close by being pivoted, and which have engaging claws at their tips extending opposite the grip side so as to hook onto a pair of edges extending in the longitudinal direction of the vinyl sheet holder which has a C-shaped cross section; a fulcrum portion which protrudes from the base portion to the grip side on the side of the base portion which continues to the grip so as to act as a fulcrum of a lever; and an elastic member which biases the pair of engaging claws of the pair of engaging claw-equipped rotating members in the closing direction.

[0008] According to one form of the vinyl sheet holder removal tool of the present invention, a helical spring is arranged as the elastic member between the portions of the pair of engaging claw-equipped rotating members that are rearward of the pivot axis.

[0009] According to one form of the vinyl sheet holder removal tool of the present invention, a pair of rear ends of the rotating members, which are located at the rear end side of the pivot axis of the pair of engaging claw-equipped rotating members and are extended further rearward than the position where the helical spring is arranged, can be characterized as being a portion that can be manually rotated so that the pair of engaging claw portions of the pair of engaging claw-equipped rotating members open.

[0010] According to one form of the vinyl sheet holder removal tool of the present invention, the base portion is characterized by having a pair of locking portions for preventing the pair of engaging claw-equipped rotating members from closing too far.

[0011] According to one form of the vinyl sheet holder removal tool of the present invention, when the vinyl sheet holder is attached or detached from the pipe, the vinyl sheet holder is clamped between the pair of engaging claw-equipped rotating members, and a fall prevention elastic member which prevents the vinyl sheet holder from falling is fixedly attached to the base portion or the fulcrum portion. Effect of the Invention

[0012] The vinyl sheet holder removal tool of the present invention has an excellent operating feel, and has the particularly advantageous effect of allowing the vinyl sheet holder to be easily attached and detached from the pipes of a greenhouse. [Brief description of the drawings]

[0013] [Figure 1] 1 is a perspective view showing an example of a vinyl sheet holder remover according to the present invention; [Diagram 2] This is a front view showing the state in which the embodiment of Fig. 1 is used, and shows a state in which the engaging claw portions 21, 21 of a pair of engaging claw-equipped rotating members 20, 20 are hooked onto a pair of edges 51, 51 of a vinyl sheet holder 50. Note that the illustration of the vinyl sheet is omitted. [Diagram 3] 1 in use, showing the state where the grip 10 is tilted from the state in FIG. 2, and the vinyl sheet holder 50 begins to be removed from the pipe 40 by lever action. Note that the illustration of the vinyl sheet is omitted. [Figure 4] FIG. 11 is a perspective view showing another embodiment of the vinyl sheet holder remover according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, examples of the removal tool for a pair of rotating member holders with engaging claws according to the present invention will be described in detail with reference to the attached drawings (Figs. 1 to 4). The removal tool for the vinyl sheet holder according to the present invention is used to remove the vinyl sheet holder 50, which is fitted to the pipe 40 of a vinyl greenhouse to hold a vinyl sheet, from the pipe 40.

[0015] The vinyl sheet holder removal tool of the present invention comprises a grip 10 that is held by the operator as a base on which a movable part (a pair of pivoting members 20, 20 with engaging claws) is attached, and a base part 11 that is provided at the base of the grip 10 in a direction perpendicular to the grip axis extending in the longitudinal direction of the grip 10, and that extends to both sides of the grip axis as the center.

[0016] The vinyl sheet holder removal tool of the present invention is provided with a pair of engaging claw-equipped rotating members 20, 20 which are rotatably attached to one side 11a of base portion 11 so as to be opened and closed as a pair in a plane substantially parallel to the grip axis, and which have, at their tips extended to the opposite side from the grip 10, engaging claw portions 21 which are arranged in a hook-like shape so as to hook onto a pair of edges 51, 51 extending longitudinally of vinyl sheet holder 50 which has a C-shaped cross-sectional shape.

[0017] The vinyl sheet holder remover according to the present invention is provided with a fulcrum portion 12 provided on the other side 11b of the base portion 11 so as to protrude from the base portion 11 toward the side opposite the grip 10 to act as a fulcrum of the lever, and an elastic member 30 which biases the pair of engaging claw portions 21 of the pair of engaging claw-equipped rotating members 20, 20 in the closing direction. With respect to the fulcrum portion 12, the grip 10 functions as the force point of the lever, and the pair of engaging claw portions 21, 21 function as the point of action of the lever.

[0018] The vinyl sheet holder removal tool according to the present invention provides a special advantageous effect of allowing the vinyl sheet holder 50 to be easily attached and detached from the pipe 40 of the vinyl greenhouse due to its excellent working feel. That is, according to this embodiment, the grip axis extending in the longitudinal direction of the grip 10 and the opening and closing direction (opening and closing surface) of the pair of engaging claw-equipped rotating members 20, 20 are arranged in a state where they are arranged substantially parallel to each other, the operation of hooking the pair of engaging claws 21, 21 onto the vinyl sheet holder 50 becomes a thrusting operation in a direction that makes it easy to push in, the substantial span between the fulcrum and the force point of the lever is long, making it easier to reduce the force due to the principle of the lever, and the vinyl sheet holder 10 can be attached and detached by rotating the grip 10 so as to tilt it toward the worker, which provides a special advantageous effect of making it easy to transmit force and providing a better working feel.

[0019] In this embodiment, a helical spring 30 is disposed as an elastic member between the rear end sides of the rotation shafts 22 of the pair of engaging claw-equipped rotation members 20 .

[0020] This makes it possible to configure a vinyl sheet holder remover that is easy to operate by using the versatile helical spring 30. However, the present invention is not limited to this, and it goes without saying that a leaf spring or a torsion spring can be selectively used as the elastic member as appropriate.

[0021] In addition, in this embodiment, a pair of rear end portions 23 of the rotating members 20, 20 with engaging claws, which are located at a portion rearward of the pivot axes 22, 22 of the rotating members 20, 20 and extend further rearward than the position where the helical spring 30 is arranged, are portions that can be manually rotated so that the pair of engaging claw portions 21, 21 of the rotating members 20, 20 with engaging claws open.

[0022] According to this, the pair of rear end portions 23, 23 of the rotating members are pinched with two fingers to apply pressure, and rotated about the rotating shafts 22, 22 against the biasing force of the helical spring 30 so as to narrow the gap, thereby allowing manual operation so that the pair of engaging claws 21, 21 on the opposite, tip side opens (so that the gap between the pair of engaging claws 21, 21 widens). Therefore, if the pair of engaging claws 21, 21 unintentionally engage with the vinyl sheet holder 50 or the like, the engaged state can be appropriately released, improving operability.

[0023] In this embodiment, the base portion 11 is provided with a pair of locking portions 11c, 11c for preventing the pair of engaging claw-equipped rotating members 20, 20 from closing too far.

[0024] According to this, before the work is performed with the vinyl sheet holder removal tool according to the present invention, the pair of engaging claws 21, 21 can be in a preparation state with a required distance as shown in Fig. 1, improving workability. In other words, by pushing the pair of engaging claws 21, 21 from the state in Fig. 1 in a direction intersecting the axis of the pipe 40, the pair of engaging claws 21, 21 will expand from the state in which they maintain the required distance (the state in Fig. 1) along the outer periphery of the vinyl sheet holder 50 against the biasing force of the helical spring 30, and by being pushed further, they will overcome the corners of a pair of edges 51, 51 extending in the longitudinal direction of the vinyl sheet holder 50 and rotate in the closing direction due to the biasing force of the helical spring 30. This allows the pair of engaging claws 21, 21 to automatically hook and engage with the pair of edges 51, 51 of the vinyl sheet holder 50 as shown in Fig. 2.

[0025] Furthermore, in this embodiment, when the vinyl sheet holder 50 is attached or detached from the pipe 40, the vinyl sheet holder 50 is clamped between a pair of engaging claw-equipped rotating members 20, 20 (mainly a pair of engaging claw portions 21, 21), and a fall prevention elastic member 13 which prevents the vinyl sheet holder 50 from falling is fixedly attached to the base portion 11 or the fulcrum portion 12.

[0026] This makes it possible to suitably prevent the vinyl sheet holder 50 from falling when it is removed from the pipe 40. In this embodiment, the fall-prevention elastic member 13 is configured as a spatula-shaped leaf spring member as shown in the figure, but this is not limited to this, and it goes without saying that other elastic members can be appropriately selected and used as long as they have the elasticity to be pressed against the vinyl sheet holder 50 and hold it in place.

[0027] Next, another embodiment of the vinyl sheet holder remover according to the present invention will be described with reference to Fig. 4. This embodiment also improves the operability of the vinyl sheet holder remover used when attaching and detaching the vinyl sheet holder 50, which is fitted to the pipe 40 of a vinyl greenhouse to hold a vinyl sheet, from the pipe 40.

[0028] In this embodiment, the grip 10 is held so that its free end extends away from the worker during work, and a base portion 11 is arranged so that it continues from the base of the grip 10 in a direction that essentially reverses in a V shape from the grip axis extending in the longitudinal direction of the grip 10, and a pair of engaging claw-equipped rotating members 20, 20 are rotatably attached to the end of the base portion 11 in a plane perpendicular to the extension direction of the base portion so that they can be opened and closed as a pair, and the tip portion extended to the side opposite the grip 10 has engaging claw portions 21 arranged to hook onto a pair of edges 51, 51 extending in the longitudinal direction of the vinyl sheet holder 10 which has a C-shaped cross-sectional shape.

[0029] In addition, in this embodiment, the base portion 11 is provided with a fulcrum portion 12 that protrudes from the base portion 11 toward the opposite side to the grip 10 so as to act as a fulcrum of a lever on the side of the portion of the base portion 11 that continues to the grip 10, and an elastic member 30 that biases the side of the pair of engaging claw portions 21, 21 of the pair of engaging claw-equipped rotating members 20, 20 in the closing direction.

[0030] According to this embodiment, the grip 10 is laid down so that the free end extends away from the worker during work, making it easy to insert into narrow spaces where there are obstacles, and the distance between the grip 10, which is the point of force, and the fulcrum 12 can be set substantially longer. In other words, the substantial span between the fulcrum and the point of force of the lever is longer, making it easier to reduce the force due to the principle of leverage, and the vinyl sheet holder 10 can be detached by rotating the grip 10 so as to pull it toward the worker, which provides a special advantageous effect of making it easier to transmit force and providing a better working feel. Furthermore, the tip side of the pair of engaging claw-equipped rotating members 20, 20 is bent forward and inclined as shown in FIG. 4, making the angular relationship with the grip 10 easier to work with.

[0031] Although the present invention has been described above using various preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. [Explanation of symbols]

[0032] 10 Grip 11 Base 11a One side 11b The other side 11c Locking part 12 Support part 13 Elastic member for preventing falling 20 Rotating member with engaging claw 21 Engagement claw portion 22 Rotating shaft 23 Rear end of rotating member 30 Elastic member (coil spring) 40 Pipe 50 Vinyl Sheet Holder 51 Margin

Claims

1. A vinyl sheet holder removal tool used to attach and detach a vinyl sheet holder, which is used to hold a vinyl sheet on a pipe of a vinyl greenhouse, from the pipe, A grip that the worker holds, A base portion is provided at the base of the grip so as to extend on both sides of the grip axis in a direction perpendicular to the grip axis extending in the longitudinal direction of the grip, the base portion being provided around the grip axis; a pair of pivotable members with engaging claws attached to the base portion on one side thereof so as to be pivotally opened and closed in a plane substantially parallel to the grip axis, the pair having engaging claws at their tips extending to the opposite side from the grip side so as to be hooked onto a pair of edges of the vinyl sheet holder that are C-shaped in cross section and extend in the longitudinal direction; a fulcrum portion provided on the other side of the base portion so as to protrude from the base portion toward an opposite side to the grip side to act as a fulcrum of a lever; a pair of engaging claws on the rotating members with engaging claws, and an elastic member for biasing the pair of engaging claws in a closing direction.

2. A vinyl sheet holder removal tool used to attach and detach a vinyl sheet holder, which is used to hold a vinyl sheet on a pipe of a vinyl greenhouse, from the pipe, A grip that is held during operation so that a free end extends to the side opposite to the operator; A base portion is provided so as to continue from a root portion of the grip in a direction substantially inverted in a V-shape with respect to a grip axis extending in a longitudinal direction of the grip; a pair of pivotable members with engaging claws attached to the end of the base portion so as to be pivotally opened and closed in a plane perpendicular to the extension direction of the base portion, the pair having engaging claws at their tips extending to the opposite side to the grip side so as to hook onto a pair of edges of the vinyl sheet holder that are C-shaped in cross section and extend in the longitudinal direction; a fulcrum portion provided on a side of the base portion connected to the grip so as to protrude from the base portion toward an opposite side to the grip side to act as a fulcrum of a lever; a pair of engaging claws on the rotating members with engaging claws, and an elastic member for biasing the pair of engaging claws in a closing direction.

3. 3. The vinyl sheet holder remover according to claim 1, wherein a helical spring is disposed as said elastic member between the rear end sides of the pair of engaging claw-equipped rotating members relative to the rotating shaft.

4. A vinyl sheet holder removal tool as described in claim 3, characterized in that a pair of rear ends of the rotating members, which are located at the rear end side of the rotation axis of the pair of engaging claw-equipped rotating members and extend further rearward than the position where the spiral spring is arranged, can be manually rotated so that the pair of engaging claw portions of the pair of engaging claw-equipped rotating members open.

5. 5. The vinyl sheet holder remover according to claim 4, wherein said base portion is provided with a pair of engagement portions for preventing said pair of engaging claw-equipped rotating members from closing too far.

6. A vinyl sheet holder removal tool as described in claim 5, characterized in that when the vinyl sheet holder is attached or detached from the pipe, the vinyl sheet holder is clamped between the pair of engaging claw-equipped rotating members, and a fall prevention elastic member which prevents the vinyl sheet holder from falling is fixedly attached to the base portion or the fulcrum portion.

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