JPH0740661U - Frame-shaped guide roll installation tool - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to insert an underground cable such as an optical cable into a manhole when the end openings of the underground pipe through which the underground cable is opened are erected vertically or horizontally. The purpose of the present invention is to provide a tool for mounting a frame-shaped guide roll (L) used for stepping in the construction that is passed through. According to the present invention, a lower portion of an elastic plate 5 is fixed to a rising piece 3 of a frame-shaped guide roll mounting plate 1 which is formed in an L shape and protrudes to the front, and a first portion is provided above the elastic plate. The dividing pipe 7 is provided, and the flanged pipe 11 which is elastically joined to the inner circumference of the end opening 43 of the underground pipe 42 which opens to the manhole wall by the elastic expansion of the second dividing groove is used for the first dividing of the elastic plate 5. The present invention relates to a mounting tool for a frame-shaped guide roll, characterized in that it is fixed on both sides of the groove 7, and the first and second split grooves 7, 13 are substantially aligned with each other in the axial direction of the elastic plate 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is applied to a frame-shaped guide roll (L) installation tool, and when the end openings of the underground pipe through which the underground cable passes are open to the top or bottom or left and right, The present invention relates to a tool for attaching a frame-shaped guide roll (L) used for stepping in the work of passing a cable through a manhole.

[0002]

[Prior art]

 Stepping means that the underground cable drawn from the underground pipe end of the manhole does not rub against the end so that damage does not occur. It is a factory that faces you. (See Figure 6).

Conventionally widely used stepping tools are divided into a frame-shaped guide roll (L) and a lower tool a and an upper tool b as shown in FIG. Is. The lower tool a is composed of a lower round semicircular base c for fitting into the end opening y of the underground pipe x and a lower semicircular main body d protruding into the manhole, and is drawn inside the main body d. Several guide rolls e of the underground cable z are provided in tandem, and a fulcrum stud receiver f and a swingable fastener g on the lower end are provided on both outer sides. The upper tool b is provided with an upper semi-circular clasp h for expanding the semi-circular base h of the lower semi-circular clasp c, a fulcrum stud i on both sides, and a notch h in which the fastener g is fitted. . This stepping tool carries the lower tool a from below the underground cable z near the end opening y of the underground pipe x and receives it on the guide roll e, and then covers the upper tool b and fulcrum tack i. Place it on the receiving bracket f, insert the lower expansion oscillating semicircular mouthpiece and the upper expansion oscillating semicircular mouthpiece h into the end opening y, fit the fastener g into the fitting groove h, and tighten the fulcrum stud. It is oscillated as indicated by an arrow with i as a fulcrum, and there are many drawbacks such as the handling is complicated because the lower tool a and the upper tool b are bisected.

As will be described later, the frame-shaped guide roll (L) used in the present invention is publicly known, and the details thereof are as shown in FIGS. 4 and 5. The both ends of the shaft 24 of the horizontal first free rolling roll 29 are supported by the pieces 22 and 22a, and the wing pieces 23 and 23a are provided at the upper ends of the rising pieces 22 and 22a, respectively, and the wing piece 23 of one side A shaft 25 of the second free-rolling roll 30 is fixedly supported, and a C-shaped piece 27 having a notch 26 on the front surface or the rear surface is provided above the second free-rolling roll 30 of the shaft 25, and the other blade is provided. The piece 23a supports the inverted L-shaped shaft 28 so that it can freely rotate horizontally, and the vertical portion 28a of the inverted L-shaped shaft supports the third free-rolling roller 31 so that it can freely rotate and the horizontal portion 28b supports the fourth free-rolling roller 32. And the end of the horizontal portion 28b is attached to the notch of the C-shaped piece 27. 6 to fit and guide the underground cable 44 in a quadrangular frame formed by the four rolls 29, 30, 31, 32, or rotate the roll 32 horizontally to form a part of the quadrangular frame. Then, the guide roll is removed or fitted from the underground cable 44.

In the frame-shaped guide roll (L) described above, a mounting frame 34 is provided at the center of the bracket 21, and a mounting push screw 35 is screwed to a lower piece of the mounting frame. Since there is no means for easily attaching to the end opening 43 of 42, the above-described step forming function is excellent, but there is a drawback that it takes time to attach the frame-shaped guide roll (L).

[0006]

[Problems to be solved by the device]

 An object of the present invention is to develop a tool which can remarkably promote the step forming process by the frame-shaped guide roll (L).

[0007]

[Means for Solving the Problems]

 The present invention meets the above-mentioned object. The lower part of the elastic plate 5 is fixed to the rising piece 3 of the frame-shaped guide roll mounting plate 1 which is L-shaped and protrudes to the front. The first split groove 7 is provided in the upper part of the above, and the flanged pipe 11 that is elastically joined to the inner circumference of the end opening 43 of the underground pipe 42 that opens to the manhole wall by the elastic expansion of the second split groove is the elastic force. A tool for mounting a frame-shaped guide roll, characterized in that it is fixed to both sides of the first split groove 7 of the plate 5, and the first and second split grooves 7 and 13 are substantially aligned in the axial direction of the elastic plate 5. Is.

[0008]

[Action]

 The installation tool of the present invention is used to pull the underground cable 44 from the pull-out side when the underground cable 44 is passed through the end openings 43 of the underground pipes 42 opened in the manhole wall 41 as shown in FIG. The second split groove 13 of the flanged pipe 11 which has expanded the second split groove 13 by the elasticity of No. 5 is further expanded, the underground cable 44 is fitted, and then the end cable 43 is contracted against the elasticity. When it is pushed in from the end and the hand is released, it makes elastic contact with the inner circumference of the end opening, and only the mounting plate 2 of the frame-shaped roll mounting plate 1 projects from the end opening. Therefore, the mounting frame 33 of the frame-shaped guide roll (L) is fitted from the front portion of the mounting plate 2 as described above and fixed by the mounting screw. Besides, the mounting plate 2 of the frame-shaped guide roll (L) can be freely mounted.

[0009]

【Example】

 FIG. 1 is a perspective view, FIG. 2 is a plan view, FIG. 3 is a perspective view of an elastic plate, and FIG. 4 is a perspective view of a frame-shaped guide roll mounted on a mounting plate. Front view, FIG. 5 is a cutaway side view of the same portion, and FIG. 6 is a side view of a use mode of the present invention.

Reference numeral 1 denotes an L-shaped frame-shaped guide roll mounting plate, which is composed of a mounting piece 2 projecting to the front and a rising piece 3, and a frame-shaped portion of the mounting piece 2 connected to the rising piece 3 The groove 4 into which the mounting frame 32 of the guide roll (L) is fitted is provided. Reference numeral 5 denotes an elastic plate, which is composed of two symmetrical semi-circular plates 6 as shown in FIG. 3. The lower part of each half-arc plate is placed on the back of the rising piece 3 and the elastic part of the upper part is formed. It is attached so as not to kill it, and the first split groove 7 is formed in the upper portion in the attached state.

Above the rising piece 3 on the front surface of each of the semi-circular plates 6, 6, right and left independent reinforcing plates 8, 8 are attached with rivets or the like, and the upper ends of the semi-circular plates 6, 6 are attached to the respective upper ends. Handles 9 and 9 are provided to be higher than the upper end of, and a split groove 10 similar to the first split groove 7 is formed between the handles 9 and 9. The handles 9, 9 may be provided on the semi-circular plates 6, 6. Reference numeral 11 is a flanged pipe made of a highly elastic material such as hard rubber or hard synthetic resin, and has a second split groove 12 formed above it. The second split groove is also formed in the collar 12. This flanged pipe 11 fixes the flanges 12 on both sides of the second split groove 13 to both sides of the first split groove 7 of the semicircular arc plates 6 and 6 of the elastic plate 5 and the split groove 10 of the reinforcing plates 8 and 8 to form the half pipe. The expanding tendency of the circular arc plates 6, 6 is exerted on the flanged pipe 11 to expand the second split groove 13, and the elasticity of the circular plates 6, 6 causes the inner peripheral surface of the end opening 43 opening to the manhole wall 41 of the underground line protection mother pipe 43 to be elastic. Contact. The first and second split grooves 7, 13 are substantially aligned with each other in the axial direction of the elastic plate 5.

To mount the frame-shaped guide roll (L) to the mounting tool of this embodiment, the mounting frame 33 of the frame-shaped guide roll is fitted to the mounting piece 2 of the mounting tool, and the frame 33 is also fitted to the groove 4. Push the bottom surface of the mounting piece 2 with the screw 34.

[0013]

[Effect of device]

 The frame-shaped guide roll installation tool of the present invention can easily be elastically attached and removed by using the end opening 43 of the underground protection mother pipe 42 as a support, as described in the embodiment and operation section. In the laying work of the underground cable 44, there is an effect that the stepping work which is performed by using the frame-shaped guide roll (L) can be smoothly and swiftly progressed.

[Brief description of drawings]

 The accompanying drawings show one embodiment of the present invention,

FIG. 1 is a perspective view,

FIG. 2 is a plan view,

FIG. 3 is a perspective view of an elastic plate,

FIG. 4 is a front view of a frame-shaped guide roll mounted on a mounting plate;

FIG. 5 is a cutaway side view of the same portion,

FIG. 6 is a side view of a use mode of the present invention,

FIG. 7 is a side view of a conventionally known stepping tool,

[Explanation of symbols]

1 → Frame-shaped roll mounting plate 2 → Mounting plate 3 → Standing piece 4
→ Groove 5 → Elastic plate 6 → Semi-circular plate 7 → First split groove 8 → Reinforcing plate 9 → Handle 10 → Second split groove 11 → Collared pipe 12 → Tsuba 13
→ 3rd split groove 21 → bracket 22, 22a → rising piece 23, 2
3a → wing piece 24, 25 → shaft 26 → missing portion 27 → C-shaped piece 28 → inverted L-shaped shaft 28a → rare portion 28b → horizontal portion 29 → first free rolling roll 30 → second free rolling roll 31 → third Free rolling roll 3
2 → 4th free rolling roll 33 → Mounting frame 34 → Mounting set screw 41 → Manhole wall 42 → Underground pipe 43 → End port 44 → Underground cable

Claims (1)

[Scope of utility model registration request] 1. A lower part of an elastic plate 5 is fixed to a rising piece 3 of a frame-shaped guide roll mounting plate 1 which is L-shaped and protrudes to the front, and a first split groove is formed in the upper part of the elastic plate. 7 is provided on the inner circumference of the end opening 43 of the underground pipe 42 that opens to the manhole wall.
Collared pipe 11 that elastically joins by expanding the groove
Fixed to both sides of the first split groove 7 of the elastic plate 5,
A mounting tool for a frame-shaped guide roll, characterized in that the second split grooves 7, 13 are substantially aligned with each other in the axial direction of the elastic plate 5.