JPH0627834U - Plastic split plate for drums - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a plastic small split plate that is not easily deformed even when external force is applied and is easy to process. [Structure] A small plate for attaching to a peripheral edge 5 of a collar 4 of a drum 3 in which a filament 2 is wound around a winding drum 1. The split board was made of a soft vinyl chloride resin and a hard vinyl chloride resin, and the compounding ratio thereof was in the range of 40% soft vinyl chloride, 60% hard vinyl chloride to 70% soft vinyl chloride, and 30% hard vinyl chloride.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The plastic small split plate for a drum of the present invention is attached to the outer periphery of the flange of the drum for winding the filaments such as electric wires, cables and pipes to protect the filaments wound around the drum body. It is used for

[0002]

[Prior art]

 In order to wind the filament on the drum, conventionally, as shown in FIG. 7, the cable C is wound around the winding drum B of the drum A, and then the collar D is spread over the two facing collars D. A large number of small split plates E are attached to the entire circumference of the small split plate E, and the small split plates E are hammered one by one with nails F. The bind wire G is wound around the outer circumference of the small split plate E to tighten the small split plate E, The binding wire G was fixed at appropriate points with an inverted U-shaped stopper H. The split boards E were made of wood or plastic.

[0003]

[Problems to be solved by the device]

 Conventional plastic split boards have the following drawbacks because they are made of soft vinyl chloride, hard vinyl chloride, etc. ． The soft vinyl chloride simple substance has poor rigidity, and easily bends when an external force is applied, and the cable C wound on the winding drum B may come into contact with the cable C to be damaged. ． Hard vinyl chloride alone is too hard and is inferior in workability.

An object of the present invention is to solve various problems of a small split plate made of a single plastic, and to provide a plastic small split plate which is not easily deformed even when an external force is applied and is excellent in processing. .

[0005]

[Means for Solving the Problems]

 The plastic small split plate for a drum of the present invention is a small split plate for attaching to the outer peripheral edge 5 of the collar 4 of the drum 3 in which the filament 2 is wound around the winding drum 1 as shown in FIG. Split board 6 is made of soft vinyl chloride resin (soft vinyl chloride) and hard vinyl chloride resin (hard vinyl chloride), and the mixing ratio is in the range of 40% soft vinyl chloride, 60% hard vinyl chloride to 70% soft vinyl chloride, 30% hard vinyl chloride. It is what

[0006]

[Action]

 A large number of the plastic split plates 6 for drums of the present invention are attached to the entire circumference of the collar 4 by straddling the two opposing collars 4. In this case, since the compounding ratio of the soft PVC and the hard PVC forming the small split plate 6 is in the range of 40% soft PVC, 60% hard PVC to 70% soft PVC, 30% hard PVC, the external force is It is hard to bend even if applied, and it is difficult to contact the filament 2 wound on the winding drum 1, so that the filament 2 is not damaged. In addition, it is moderately soft and easy to process.

[0007]

【Example】

 The plastic small split plate 6 of the present invention will be described in detail. The material of the split plate 6 is soft PVC or hard PVC. The blending ratio is in the range of 40% soft PVC, 60% hard PVC to 70% soft PVC, 30% hard PVC.

Here, the use of vinyl chloride resin (vinyl chloride) as a base has a large purpose of flame retardancy. The concepts of soft PVC and hard PVC described above are the same as those of the commonly used soft PVC and hard PVC. In the embodiment of the present invention, soft PVC used as an electric wire cable covering material was used, and hard PVC used had a high hardness used as an underground distribution pipeline (SVP). Soft PVC and hard PVC are distinguished by the content of plasticizer. Usually, the soft PVC has a plasticizer content of 15% (wt%) or more, and the hard PVC has a plasticizer content of 5% (wt%) or less.

As an example of the split plate 6 of the present invention, a waste plastic having a size of 15 mm × width 91 × length 600 was manufactured. As shown in FIG. 5, this was placed on a table having a rating of 400 mm, and a central concentrated load was applied to measure strength-deflection. The test equipment used at this time is as follows. Testing machine: Eastron type universal testing machine MAX 10 TON Linear velocity: 50 m / min Chart: Deflection scale 1/1: Maximum load scale 2,000 kg

As a result of this test, when the blending ratio of the soft vinyl chloride and the hard vinyl chloride is more than 60%, the flexure is large and it is not suitable for use, and the blending ratio of the soft vinyl chloride and the hard vinyl chloride is the hard vinyl chloride. It has been found that when the compounding amount of is larger than 60%, the workability is remarkably poor and it is not suitable for use. The test results are shown in Table 1.

[0011]

[Table 1]

The shape of the split plate 6 of the present invention can be appropriately selected. For example, as shown in FIG. 1, two stoppers 12 for preventing positional deviation are provided on the back surface of an elongated plate material 11, and an outer space Q (FIG. 1) of both stoppers 12 is set between two opposing flanges 4. The width P between the side surfaces 13 (FIG. 4) is made slightly shorter so that it can be inserted between both inner side surfaces 13. By providing this stopper 12, the split plate 6 will not be displaced or fall out even if it is pushed from the side.

The split plate 6 may be as shown in FIG. This uses a thin plate material 11 having a large thickness, and thins both sides in the longitudinal direction of the back surface thereof to form a stopper 12 for preventing positional deviation in the central part, and further binds the binding wire 14 on the upper surface of the plate material 11 (see FIG. Two guide grooves 15 for arranging 4) are provided in parallel. This is slightly heavier than the split plate 6 shown in FIG. 1, but there is no special problem in using it.

[0014]

【Example of use】

 The small plate 6 of the present invention may be nailed to the outer peripheral edge 5 of the collar 4 one by one, but may be attached to the outer peripheral edge 5 of the collar 4 by using the mounting jig 20 shown in FIG.

The mounting jig 20 has a U-shaped fitting portion 21 that is fitted to the outer peripheral edge 5 of the collar 4 and that opens downward, and protrudes inward from the side surface of the fitting portion 21 and is pressed against the collar 4. The press-fitting portion 22 and the attaching / detaching portion 23 projecting above the fitting portion 21 and opening inward so that the small plate 6 can be attached / detached are formed in series.

The small plate 6 of the present invention is mounted on the outer peripheral edge 5 of the collar 4 of the drum 3 by using the mounting jig shown in FIG. 3 as follows. ． As shown in FIG. 6, the attachment / detachment portions 23 of the mounting jig 20 are fitted on both ends of the small plate 6 in the longitudinal direction, and the mounting jig 20 is attached to the small plate 6. ． The fitting portion 2 of the mounting jig 20 is fitted on the outer peripheral edge 5 of the collar 4 of the drum 2 as shown in FIG. As a result, the crimping portion 22 is brought into pressure contact with the inner surface of the collar 4, the fitted portion 21 is fixed to the outer peripheral edge 5 of the collar 4, and the split plate 6 is attached to the outer peripheral edge 5 of the collar 4. ． In the same manner as described above, the mounting jigs 20 are attached to the both ends of the next split plate 6 in the longitudinal direction. ． In the same manner as described above, the fitting portion 21 of the mounting jig 20 is fitted to the side of the outer peripheral edge 5 of the collar 4 adjacent to the mounting jig 20 previously fitted to the outer peripheral edge 5. As a result, the same split plate 6 is mounted beside the previous split plate 6. ． By repeating the above, the small split plate 6 is continuously attached to the entire circumference of the outer peripheral edge 5 of the collar 4. ． As shown in FIG. 4, the binding wire 14 is wound around the outer periphery of the split plate 6, and the split plate 6 is pressed and bound. ． An arbitrary portion outside the bind wire 14 is fixed with a U-shaped stopper 16 as shown in FIG.

To remove the split plate 6 attached to the outer peripheral edge 5 of the collar 4 as described above, the stopper 16 is removed, then the bind wire 14 is removed, and then the small plate 6 is removed. The split plate 6 is removed from the attaching / detaching portion 23, and the mounting jig 20 is further pulled out from the outer peripheral edge 5 of the collar 4. By this, the split plate 6 and the mounting jig 20 can be repeatedly used.

[0018]

[Effect of device]

 The plastic small split plate 6 for drum of the present invention is composed of soft vinyl chloride and hard vinyl chloride, and the mixing ratio thereof is in the range of 40% soft vinyl chloride, 60% hard vinyl chloride to 70% soft vinyl chloride, 30% hard vinyl chloride. Therefore, it is difficult to bend even if external force is applied, it does not come into contact with the cable wound on the winding drum, the cable is not damaged, and it is moderately soft and easy to process.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a small plate of the present invention.

FIG. 2 is an explanatory view showing another example of the split plate of the present invention.

FIG. 3 (a) is a side view showing an example of a mounting jig used for mounting the split plate of the present invention on a collar, and FIG. 3 (b) is a front view of the mounting jig.

FIG. 4 is a vertical cross-sectional explanatory view showing a state where the small plate of the present invention is attached to a collar using a mounting jig.

FIG. 5 is an explanatory diagram of strength-deflection test of the split plate of the present invention.

FIG. 6 is an explanatory view of a process of mounting the small plate of the present invention on the collar using a mounting jig.

FIG. 7 is a front view of a conventional drum with a small plate attached.

[Explanation of symbols]

 1 winding drum 2 linear body 3 drum 4 collar 5 outer peripheral edge

Claims (1)

[Scope of utility model registration request] 1. A small split plate for attaching to the outer peripheral edge 5 of a collar 4 of a drum 3 in which a filament 2 is wound around a winding drum 1, the small split plate 6 being a soft vinyl chloride resin and a hard vinyl chloride resin. The blending ratio is 40% soft vinyl chloride resin, 60% hard vinyl chloride resin to 70% soft vinyl chloride resin.
%, Hard vinyl chloride resin in the range of 30%, a plastic small split plate for drums.