JP4783818B2 - Wrapping operation tool using a hand grip for stretch film - Google Patents

Description

  In general, stretch films for packaging objects are made of polyethylene, which is self-adhesive and can be wrapped without using an adhesive, and is processed into a cylindrical paper tube with a thickness of about 15-20μ. Rolled. In addition, manual winding packaging and machine-wrapping packaging are known as means for packaging with the stretch film. The present invention relates to a stretch film hand-wound gripping tool used to wrap and wrap around an article to be packaged, and a wrapping operation tool using the gripping tool.

Many operating tools for manually winding and wrapping stretch films have been disclosed and provided as commercial products or sales promotion products for stretch films.
Invention of JP-A-08-119242 Hand-wound holder shown in FIGS.

  As described in the specification, the stretch film manual winding operation tool of Patent Document 1 is made of an operable material that is inserted into the paper tube 7 that is the core of the stretch film. A gripper 5 that is continuous with the first shoulder portion 3 having the receiving portion of the other end surface 8 and the first shoulder portion 3 having the receiving portion of the one end surface 8 of the paper tube. It consists of a handle portion 6 continuous with the second shoulder portion 4, and the paper tube holder portion 2, the first shoulder portion 3 and the grip portion 5 can be inserted into the paper tube 7, and the second shoulder portion 4 is a paper tube. The handle portion 6 is wider than the inner diameter of 7, and is shorter than the paper tube holder portion 2, and has a handle 10 at the end of the longitudinal direction. At least one stretch film cutter 9 in the width direction side line portion of the handle portion 3 can be provided.

  In the use of the above-mentioned Patent Document 1, the hook at the end of the band connected to the handle of the end by folding the handle portion located at the lower end into the hook hole of the grip tube at the upper end of the board inserted into the paper tube of the stretch film. Hang on the hook hole of the grip, hold the grip and handle, make it almost vertical and wrap around the luggage.

  Next, the hand-wound holder of Non-Patent Document 2 is disclosed on a homepage on the Internet by a manufacturer / sales company related to packaging and packing materials.

Then, Non-Patent Document 2 hand-winding holders described above, as shown in Figures 6-8, with a bottom spaced worked long hole 23 in the diameter direction in the center of the bottom portion 21 ₁ a circular inner cylinder 21 It consists of a circular outer cylinder 24 that freely fits on this, and uses these two as a pair, and the outer cylinder 22 is inserted completely into the paper tube C as the core material from both ends of the roll body R of the stretch film. Both hands are put into the long hole 23 for the inner cylinder 21 with all four fingers except for the thumb and the roll body R is held in a substantially vertical state to wrap around the luggage. Is also called. At that time, the thumb is always placed on the roll body.
Accordingly, it is said that the stretch film can be easily attached to a roll body having a width of about 500 mm and a length of about 300 m, and has a considerable weight.

By the way, the force of supporting the roll body is more easily dispersed and operated in the vicinity of both ends in the length (corresponding to the width of the film) direction of the roll body of Patent Document 1.
In that respect, the hand-wound holder of Non-Patent Document 2 is in a state having both end portions of the roll body, so that the outer cylinder is completely inside the paper tube whose inner diameter of the roll body of the stretch film is usually about 76 mm (3 inches). Since it is inserted, the length of the long hole for handle (about 66 mm) excluding the inner cylinder and the thickness of the outer cylinder fitted to this (about 5 mm × 2) is the result of removing the thickness. It is not possible to secure a slot for easy entry of four fingers except the thumb of an adult worker. Therefore, it is difficult for an adult worker to insert all four fingers. Moreover, even if all fingers can be inserted, the first joint required up to the first joint cannot be inserted up to the second joint, which is necessary in order to hold it comfortably and without fatigue. Therefore, the actual situation is that either the index finger or the little finger is removed from the long hole. Therefore, when the inner diameter of the paper tube is about 63 mm or about 25 mm, it is difficult to actually apply the holder of the non-cited document 2 because a long hole for a worker of an adult worker cannot be secured.

  Therefore, the present invention is provided to solve the conventional problems and to achieve the object of the present invention.

According to a first aspect of the present invention, in the winding operation tool using the stretch film manual winding tool, the cylindrical body formed with the handle portion is rotatably coupled to the inner diameter portion of the bottomed cylindrical body, Bolts are inserted into the hole in the center of the bottom of the bottom cylindrical body, and the threaded portion is protruded and fixed outside the bottom to form a grip body. The pair of grip bodies are inserted into a roll-wrapped stretch film paper tube. The bottoms of the pair of bottomed cylindrical bodies are fixed to the both end faces of the paper tube by connecting and fixing to the threaded portions provided at both ends of the cylindrical shaft body using bolts. The outer peripheral surface of the body is exposed to the outside, and when the operator places his / her fingers on the handle of the cylindrical body, it is possible to apply the brake by pressing the remaining fingers against the outer peripheral surface of the bottomed cylindrical body. is there.

A second aspect of the present invention is a winding operation tool using the gripping tool for manually winding a stretch film according to the first invention, and an annular ring having a diameter that fits into the outer surface of the bottom portion of the bottomed cylindrical body in the paper tube of the stretch film. A plurality of ridges are formed.

A third aspect of the present invention is the winding operation tool using the stretch film manual winding gripper according to the first or second aspect of the present invention, wherein the groove is formed between the inner diameter portion of the bottomed cylindrical body and the outer periphery of the cylindrical body. A protruding line that engages with the groove and the recessed groove is arranged, and both are rotatably coupled.

Since the present invention has the above-described configuration, it has the following effects.
(A) First, when the gripping tool according to the present invention is used, when the diameter of the paper tube of the roll body is basically about 76 mm at the maximum, the diameter is about 63 mm or about 25 mm, which is thinner than that. However, the outer bottom surface of the bottomed cylindrical body is not inserted into the paper tube of the roll body, and is the same diameter as the maximum diameter (about 76 mm) of the paper tube, because the both ends of the paper tube are pressed and mounted. A cylindrical body with a handle portion having an inner diameter larger than that can be used, and four fingers other than the thumb of an adult worker can be inserted into the handle portion, so that work efficiency can be improved.
(B) Secondly, even if the diameter of the paper tube of the roll body is a thin paper tube having a different size as in (a) above, a gripping body having an outer diameter that is always used for the maximum diameter paper tube is used. Can be used. Therefore, for example, when a roller body is formed by winding a super-long stretch film of 300 mm in a paper tube having a diameter of about 76 mm and winding the same length of the same film around a paper tube having a small diameter of about 25 mm, the outer diameter of the roller body Therefore, the inventory storage space can be reduced and the transportation cost can be reduced.
(C) Thirdly, the gripping tool according to the gripping tool according to the present invention rotates freely even if the bottomed cylindrical body and the cylindrical body with the handle portion constituting the gripping body are combined. Sometimes two pairs of bottomed cylinders are inserted into both ends of a paper tube through a cylindrical shaft that passes through a paper tube that becomes the core material of a roll of rolls of ultra-long stretch film of 300 m. The bottomed cylinder can rotate freely with respect to the cylinder with the handle even if it is pressed and fixed, and the bottomed cylinder, paper tube, and roll body can be rotated as a unit by grasping the cylinder with the handle. You can wrap a film around your luggage.
(D) Fourth, the bottomed cylinders located at both ends of the paper tube of the roll body are screwed to both ends of the cylindrical shaft body, so that both ends of the paper tube are pressed and fixed with an appropriate force. It can be used to the end even if the paper tube is thin.
(E) Fifthly, since the cylindrical shaft body inserted into the paper tube only needs to be able to connect and fix the gripping bodies disposed at both ends of the paper tube, the diameter thereof can be made thin and light.
(F) Sixth, the paper tube cost can be reduced because the paper tube can be made thin or can be used for a roll body of a stretch film.
(G) Seventh, since the paper tube is currently used to work, the strength of the paper tube is necessary. However, if the gripping tool of the present invention is used, the thickness of the paper tube is extremely reduced in combination with the use of the cylindrical shaft body. It is also possible to make it thinner, so the waste of used paperboard tube is reduced as much as possible.

The best mode for carrying out the present invention is as follows.
First, a connecting shaft cylinder shaft body is prepared in advance according to the length of a stretch film body rolled around a pair of gripping bodies and a paper tube as a core material. After screwing the bolt of the bottomed cylindrical body into the threaded portion provided at one end and then inserting the cylindrical shaft body into the paper tube of the stretch film body from one end of the roll body, The bolts of the bottomed cylindrical body of the remaining one gripping body are screwed into the threaded portion, and the bottoms of both gripping bodies are pressed against the end face of the paper tube of the stretch film body. In this state, the bottomed cylindrical body is firmly fixed to the roll body side via the paper tube by the coupling of the bolts, but the cylinder with the handle portion connected to the bottomed cylindrical body can freely rotate. Therefore, the operator puts his / her fingers on the handle portions of both gripping bodies, holds the roll body substantially vertically, wraps around the target article to be packaged, and packages. In this state, the wrapping operation is performed while adjusting the tension by pressing the thumb that is not inserted into the handle portion against the outer peripheral surface of the bottomed cylindrical body and applying the brake.

Next, embodiments of the present invention will be described with reference to the drawings. 1 bottomed cylindrical body, 2 is a bond then worked portion with a cylindrical body for rotation inside diameter portion 1 ₁ of the bottomed cylindrical body 1, the roll outer diameter diameter r is that winding roll stretch film F The outer diameter (about 82 mm) of the paper tube C (paper thickness 3 to 5 mm) which is the core material of the body R is set to be approximately the same as or larger than that, and the gripping portion H is configured by both cylindrical bodies 1 and 2. . They are molding the finger receiving portion 3 in the opening 2 ₁ of the working unit with the cylindrical body. Edge 3 ₁ is provided with its working portion at the position g shifted to Ri outer径寄from the center of circle of the opening about 5 to 10 mm, and is formed into a plate shape having a certain thickness to the aperture surface. In addition, a space portion is secured in the inner diameter portion with a width w that allows the four fingers f _{2 to} f ₅ except the thumb f ₁ of an adult worker to enter the second joint. In addition, it is possible to provide unevenness such as jaggedness for slip prevention on the outer peripheral surface of the bottomed cylindrical body 1, and two gripping bodies are paired.

4 is a bottom a cylindrical body 2 of the bottom portion 1 ₂ the bolt inserted through the hole 5 drilled, the screwing screw washer 4 ₂ into the screw portion 4 ₁ inserted through the outer bottom surface 1 ₁ 'side of the bottomed cylindrical The bolt is fixed to the bottomed cylindrical body 1. It is also possible to fix without screw washer are integrated head bolt on the bottom 1 ₁ by molding during the molding of the bottomed cylindrical body 1.

6 is an annular ridge that is continuously or intermittently raised on the outer bottom surface 1 ₁ ′ of the bottomed cylinder, and its diameter r ′ is set to an outer diameter that fits the inner diameter of the paper tube C of the roll R. is there. In the illustrated example, the width F of the film F is 500 mm and the maximum inner diameter of the thick-rolled paper tube C having a length of 300 m is about 76 m, and the annular ridge 6 ′ for the diameter r ″ of about 63 mm and the diameter of about 25 mm. It is provided with an annular ridge 6 "for the r ^n.
7, concave groove molded into the inner diameter portion 1 ₁ of the bottomed cylindrical body 1, 8 is a convex that engages to the concave groove, formed into the outer periphery of the small-diameter cylindrical portion of the finger receiving portion with a cylindrical body 2 It is.

  Reference numeral 9 denotes a cylindrical shaft body that is inserted through the paper tube C of the stretch film F that is wound in a roll. The diameter is arbitrary as long as it can be inserted into the paper tube having the smallest diameter, but the weight can be reduced. Therefore, it is possible to set the diameter to about 16 mm and use an aluminum material. Reference numeral 10 denotes a threaded portion that allows nuts provided at both ends of the cylindrical shaft body. In the illustrated example, the stretch film width W is 500 mm, and the length of the paper tube C is slightly longer than the stretch film width (about 10 mm). However, it is set so as to protrude half (about 5 mm) from one end side of the roll body. In addition, although the illustrated example shows that the paper tube C has an inner diameter of about 76 mm, even if the inner diameter is as short as about 300 mm, if the length of the cylindrical shaft body 9 is set to be shortened accordingly, the application is hindered. There is no.

“Assembly example of gripper H”
(1) a bottomed cylindrical body 1, there is protruded a threaded portion 4 ₁ from the outer bottom 4 ₁ 'into the central hole 5 of the bottom 1 ₁ by inserting the bolts 4. Further, a plurality of annular concave groove 7 on the inner diameter portion 1 ₁ of the bottomed cylindrical body 1 are molded. On the outer bottom surface 4 ₁ ′ of the cylindrical body, an annular ridge 6 (or 6 ′, 6 ″) is formed that fits into the inner diameter of the paper tube C on which the stretch film F is wound.
(2) The cylindrical body 2 with a handle portion includes a small and large cylindrical portion with a small step of a small diameter cylindrical portion fitted to the inner diameter portion of the bottomed cylindrical body 1 and an outer diameter cylindrical portion matching the outer periphery of the bottomed cylindrical body. molded, molding a ridge 8 which fits into the annular concave groove 7 on the outer periphery of the small diameter cylindrical portion, it is molded with the finger receiving portion 3 in the opening 2 the _first large-diameter cylindrical portion.
(3) By fitting the small-diameter cylindrical portion of the cylindrical body 2 with the handle portion into the inner diameter portion of the bottomed cylindrical body 1 so as to push the annular concave groove 7 and the annular convex portion 8, Composed. In this state, the outer diameter of the bottomed cylindrical body 1 and the cylindrical body 2 with the handle is the same diameter. In addition, it is possible to provide a non-slip jagged surface on the outer diameter surface of the bottomed cylindrical body 1, and two gripping bodies are paired.

“Assembly example of stretch film roll body by gripping body H”
(1) Screw the bolt 4 inserted through the bottom of the bottomed cylindrical body into the threaded portion at the end of the aluminum cylindrical shaft body 9.
(2) After inserting the cylindrical shaft body 9 in this state into the paper tube C of the roll body R at the tip end where the bottomed cylindrical body 1 is not coupled, the bolt 4 of the other gripping body H is When screwed on the tip threaded portion 10 of the shaft 9, annular ridge grooves 6 in the cylindrical external bottom surface 1 ₁ is positioned fitted to the inner diameter of the paper tube C.
(3) The roll body R is substantially vertically oriented, so that the two pairs of grip bodies H are positioned in the vertical direction.
(4) The operator puts the four fingers f _{2 to} f ₅ except the thumb f ₁ into the handle part 3 of the gripping body H positioned in the vertical direction up to the second joint in the cylindrical body 2 and holds the handle part. 3 and hold the thumb along the outer periphery of the cylindrical body 2. And while grasping each holding body H with both hands, the to-be-packaged object mounted, for example on a base plate or a floor surface is wound in the horizontal direction, moving.
(5) The roll body R and the bottomed cylindrical body 1 are fixed integrally. On the other hand, since the cylindrical body 2 with the handle portion can be freely rotated with respect to the bottomed cylindrical body 1, an excessive burden is not imposed on the wrist and arm of the operator.
(6) And when stopping the rotation of the roll body R during the winding operation, the thumb holding the gripping body is moved to the outer peripheral surface of the bottomed cylindrical body 1 and pushed to rotate by the winding operation. The roll body R is braked and stops rotating.

  The present invention is not limited to cardboard boxes in the field of the packing industry, which are somewhat large on the base plate or floor, and shaped articles such as pipe bundles, as well as indeterminate items such as packaging for bundling grains and pastures in the agriculture and dairy fields. It can also be applied to packaging.

It is a perspective view which shows the usage example of the winding operation tool for stretch film manual winding which concerns on this invention. It is a front view of the holding body in the winding operation tool for stretch film manual winding of FIG. It is sectional drawing which follows the 3-3 line of FIG. FIG. 3 is a rear view of FIG. 2. It is a longitudinal cross-sectional view which shows the other Example of FIG. It is a front view of the holder of nonpatent literature 1. It is sectional drawing which follows the 5-5 line of FIG. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Bottomed cylindrical body 2 ... Cylindrical body with a handle part 3 ... Handle part 4 ... Bolt 5 ... Center hole 6 ... Annular ridges on the bottom surface of the bottomed cylinder 7 ... Annular groove 8 ... ... annular ridges 9 ... cylindrical shaft 10 ... screw part H ... gripping body

Claims (3)

For the inner diameter portion of the bottomed cylindrical body (1) (11), working section (3) cylindrical body formed by molding (2) rotatably coupled to the, and bottomed cylindrical body (1) bottom (12) The bolt (4) is inserted into the hole (5) drilled in the center of the screw, and the screw part (41) is projected and fixed outside the bottom part to constitute the gripping body (H).
A pair of gripping bodies (H) are bolts (4) against screw parts (10) provided at both ends of a cylindrical shaft body (9) inserted through a paper tube (C) of a stretch film (F) wound in a roll. ), The bottom surface of the pair of bottomed cylindrical bodies (1) is fixed to both end faces of the paper tube (C), and the outer peripheral surface of the bottomed cylindrical body (1) is externally exposed. Exposed,
When an operator puts his / her fingers on the handle (3) of the cylindrical body (2), the remaining fingers can be pressed against the outer peripheral surface of the bottomed cylindrical body (1) to apply a brake.
A winding operation tool using a gripping tool for manually winding a stretch film. The outer surface of the bottom (12) of the bottomed cylindrical body (1) is formed with a plurality of annular ridges (6) having a diameter (r) that fit into the paper tube (C) of the stretch film (F). A winding operation tool using the stretch film manual winding tool according to claim 1 . Between the inner diameter part (11) of the bottomed cylindrical body (1) and the outer periphery of the cylindrical body (2), the concave groove (7) and the convex stripe (8) that engages the concave groove (7) are arranged. The winding operation tool using the stretch film hand-wound gripping tool according to claim 1 or 2, characterized in that both are rotatably coupled.