JPH11324098A - Linear body holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To always stop a linear body holding device for supporting a linear body at prescribed intervals in an application state on a pipe passage even if the unevenness of a pipe passage inside diameter exist because an optical fiber cable or the like is laid on the upper part of the inside of the pipe passage such as a sewage pipe. SOLUTION: A linear body holding device 1 is diameter-enlargedly and cylindrically wound, and a sheet-like holding device 2 whose circumference is divided is provided. It comprises a diameter enlargement pressing part in which one end is connected to one hand circumferential end 3 of the cylindrical body, the other end is connected to the other hand circumferential end 4, both the circumferential ends of the cylindrical body are mutually attracted before mounting of the linear body holding device 1, the cylindrical body is maintained in a state where it is diameter-reduced smaller than the pipe passage inner circumferential diameter, at the time of mounting, both the circumferential ends are mutually separated and the outer peripheral face of the sheet-like body is maintained in a state where it is press-contacted on the pipe passage inner peripheral face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear body holding device for laying a linear body such as an optical fiber cable and an electric wire in a pipeline such as a sewer pipe.

[0002]

2. Description of the Related Art It has been practiced to lay a linear body such as an optical fiber cable and an electric wire using an existing pipeline such as a sewer pipe.

[0003] When a linear body is laid in a pipeline, a linear body holding device for retaining the linear body on the inner surface of the pipeline at desired intervals is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-250420. JP-A-8-41960, JP-A-8-41976, and Japanese Patent Application No. 9-217714 have been proposed. These conventional linear body holding devices H use a sleeve P formed by bending a stainless steel rectangular sheet S as shown in FIG. 19 and forming a cylindrical shape as shown in FIG.

A stainless steel sheet S before cylindrical processing shown in FIG. 19 has a plurality of claws T formed by cutting and raising near one end, and these claws T are provided in a laterally aligned manner. is there. Openings K are formed at the other end of the sleeve in the same manner as the pawls, which are aligned in the horizontal direction and arranged in the vertical direction.

As shown in FIG. 20, when the above-mentioned stainless steel sheet S is formed into a cylindrical shape and formed into a sleeve, both ends are overlapped with each other. The claw T is brought into contact with the inner peripheral surface, and the claw is engaged with the opening K of the inner peripheral side portion that has reached the position facing the claw T one-to-one. When the sleeve P expands its diameter even when it is in the engaged state, the engaged state is automatically released in accordance with the expanding operation, and the outer peripheral portion Pa
And the inner peripheral side portion Pb is allowed to slide with respect to each other in the circumferential direction. On the other hand, when the sleeve P performs the diameter reducing operation, the claw T and the opening K that have reached the engaged state are Outer side of
The inner peripheral portions Pa and Pb are prevented from sliding in the circumferential direction.

[0006] The stainless steel sleeve is provided with a linear body suspending device U on its inner peripheral surface, particularly on the inner peripheral surface of the portion which is located above when the linear body holding device is mounted. On the outer peripheral surface of the sleeve, an elastic member G such as a rubber ring or a rubber sheet is fitted or fitted.

[0007] The conventional linear body holding device H shown in the figure is brought to a predetermined position in a pipeline in a reduced diameter state, and after the linear body is inserted into a hole provided in a hanging tool U, Or without passing through,
The diameter of the elastic member G is increased by a diameter expanding device called a fitting machine.
Is squashed toward the inner surface of the pipeline while being crushed, and when the operation of the fitting machine is stopped and contracted when the diameter expansion is no longer performed, the inner surface of the pipeline and the sleeve S are compressed and deformed. Elastic member G having an elastic repulsion effect therebetween
Tries to reduce the diameter of the sleeve S,
a and the inner peripheral portion Pb are slid relative to each other in the circumferential direction, and the claw T and the opening K which are closest to each other in the sliding movement direction at that time are engaged to reduce the diameter of the sleeve. In this way, the linear body holding device H is mounted on the inner surface of the pipeline.

[0008]

As described above, in the conventional linear member holding device, the above-mentioned openings are provided in several stages in the circumferential direction of the sleeve (the claws are formed in several stages in the same direction, or the openings are formed in the same direction). And the claw may be several steps in the same direction), and the engagement between the claw and the opening that is aligned when the sleeve is expanded can achieve the attachment of the linear body holding device to the inner surface of the conduit.

Normally, when the fume pipe constituting the pipe has a pipe diameter (nominal diameter) of φ250 mm, the allowable error range is ± 3 mm according to JIS. As described above, since the inner diameter of the conduit is not constant, several stages of openings or claws are provided as described above to accommodate this.

The fitting machine expands the sleeve in accordance with the inner diameter of the pipe at the place where the linear body holding device is installed. The parts do not always align and engage, in which case they have to accept the engagement at the next pawl or opening.

[0011] This means that the compressive force of the elastic member becomes weak, and as a result, the linear body holding device is loosely mounted.

When the linear body holding device is installed loosely as described above, it is likely that solid matter mixed in the flowing sewage collides with the sewage, or a high-pressure jet during periodic pipe washing is performed. Depending on the pressure of the washing water, the linear body holding device may be distorted or detached in an extreme case.

Accordingly, it is an object of the present invention to provide a holding device body corresponding to the above-mentioned sleeve without using an elastic member as described above and without being affected by tolerances in the inner diameter of the pipe. It is an object of the present invention to provide a linear body holding device that can be firmly attached to an inner peripheral surface each time.

[0014]

SUMMARY OF THE INVENTION According to the present invention, there is provided a sheet-like holding device main body which is wound in a cylindrical shape so as to be expandable in diameter and has a discontinuous circumference, and one peripheral end of the cylindrical main body. One end is connected to the portion or the vicinity thereof, the other end is connected to the other peripheral end or the vicinity thereof, and when the linear body holding device is mounted, the two peripheral ends are pushed away from each other to separate the outer peripheral surface of the sheet-shaped main body. This is achieved by a linear-body holding device, characterized in that it has a diameter-expanding pressing member that maintains a state of being pressed against the inner peripheral surface of the conduit.

According to this structure of the present invention, the holding device main body is always moved to the inner circumferential portion of the pipe by the action of the diameter-enlarging pressing member connecting the two peripheral ends, even if the inner diameter of the pipe has a variation within an allowable error. It is possible to make close contact pressure contact with the surface, in which case there is no need to arrange an elastic member on the back surface of the holding device body, so that only the thickness of the sheet-shaped holding device body protrudes from the inner peripheral surface of the conduit, There is almost no obstruction in the fluid flow.

According to a second aspect of the present invention, the diameter expanding pressing member comprises:
A screw rod with opposite screws on the left and right from the center,
Nuts which are separately screwed into the left and right threaded portions of the threaded rod, and which are respectively attached to both peripheral ends.
According to this configuration, the reduced diameter state of the main body of the holding device and the state of close contact pressure contact with the inner peripheral surface of the conduit can be easily achieved only by a simple operation of turning the screw rod. Since the main body of the holding device is reliably maintained in a reduced diameter state, it can be moved to a predetermined installation position without being hindered even by steps, irregularities, and meandering generated in the pipeline.

According to a third aspect of the present invention, the diameter expanding pressing member comprises:
It has two levers that are pivotally attached to each other at a central portion, one of which is pivotally attached to one of the peripheral ends, and the other of which is pivotally attached to the other of the peripheral ends. Is extendable in the longitudinal direction, and has a spring member acting to extend the lever in the longitudinal direction. According to this configuration, when the lever is in the extended state, the peripheral end portion is pressed against the inner surface of the conduit by a spring force, and the holding device main body can be more securely brought into close contact with the inner surface of the conduit. Further, the mounting is completed only by the operation of pushing and moving the connecting portion of the both levers in the bent state.

According to a fourth aspect of the present invention, the lever having a spring member is pivotally attached to a rod material pivotally attached to an associated peripheral end and an inner end of the other lever. A frame material that supports the tip of the bar slidably in the longitudinal direction, a compression coil spring that is loosely fitted to the bar material, and is inserted between the shaft attachment portion of the bar material and the frame material. have. According to this configuration, a strong lever having a pressing action can be manufactured.

According to a fifth aspect of the present invention, a lever having a spring member is pivotally mounted on a first cylindrical body which is pivotally mounted on an associated peripheral end, and on an inner end of the other lever. And the first
A second tubular body relatively slidably fitted to the tubular body, and a second tubular body disposed in an internal space formed by the two tubular bodies.
And an elastic mass acting in a direction to push the cylindrical body away from the first cylindrical body. According to this configuration, even if the thickness of the elastic mass is smaller than the diameter of the compression coil spring having a circular cross section, a desired spring action can be obtained, and therefore the thickness of the lever including the elastic mass is obtained. (The thickness of the pipe in the radial direction) can be reduced, so that the radial space occupied by the lever in the pipe is reduced, so that there is less possibility of a flow obstruction to flowing water or flowing material.

According to a sixth aspect of the present invention, when the diameter expanding pressing member is changed from the bent state to the expanded state substantially aligned with one another,
A locking member for maintaining the extended state of both levers is provided between the two levers. With this configuration, the linear body holding device mounted in the pipeline is detached even when subjected to vibration or impact. Without fail, it keeps holding the linear body.

The invention according to claim 7 is characterized in that the shape of the spring member according to claim 3 is asymmetric at 90 ° with respect to the compression direction. It is possible to make the members thinner and to minimize the projection of the pipeline in the axial direction, and even when the fluid rises to the upper part of the pipeline or when there is a solid material flowing down with the fluid, The shape holding device hardly obstructs the flow of the fluid.

[0022]

1 to 3 show a first embodiment of the present invention. As shown, a linear body holding device 1 according to the present invention is formed by bending an elongated sheet into a substantially circular shape. It has a holding device main body 2. The material of the main body is preferably stainless steel, but other materials, such as a plastic material that is flexible and tough and durable without being corroded by substances and chemical components contained in sewage. It may be. The outer peripheral length of the holding device main body 2 formed in a substantially sleeve shape is smaller than the inner peripheral length of the conduit in which the linear body is laid. This holding device main body 2
Are the two peripheral ends 3, 4
Are cooperated with the diameter-increasing pressing member 5 for connecting the first and second members.

The above-mentioned diameter increasing pressing member 5 has a threaded rod 6, which is reversely threaded left and right with a center part as a boundary. Both threaded parts 6a and 6b are provided with a holding device. The nuts 8a, 8b supported by support plate members 7a, 7b inside the peripheral ends 3, 4 of the main body 2 are screwed respectively. The supporting plate members 7a and 7b are respectively mounted so as to be able to resiliently swing with respect to the peripheral ends 3 and 4 of the holding device main body 2, so that the nuts 8a and 8b are rotated when the screw rod 6 is rotated. Even if the distance between them changes, the coaxiality with the threaded rod 6 is maintained.

In order to attach the linear body holding device 1 according to this embodiment to the inner peripheral surface of the pipe, a linear rod whose outer diameter is reduced by operating the screw rod 6 to bring the nuts 8a and 8b closer to each other. The body holding device 1 (FIG. 1) is transported to a desired position in the pipeline, and then the nut 8a, 8b is separated from the nut 8a by rotating the screw rod 6 with the diameter-increasing pressing member 5 facing upward. As shown in FIG. 3, until the outer peripheral surface of the holding device main body 2 comes into close contact with a pipeline, for example, the inner peripheral surface of the fume tube 9,
Perform that operation. In this way, the linear body holding device 1 is securely mounted at a desired position in the pipeline. After the mounting, a linear body L such as an optical fiber cable is inserted into a space 10 formed between the screw rod 6 and the inner surface of the pipe line above the screw rod 6,
The screw rod serves as a shelf for supporting the linear body L. If there is a fitting port or other equipment in the pipe, the threaded rod is placed in a position avoiding these pipes and equipment.

After the linear body L is attached to the linear body holding device 1, the linear body L may be passed through another means, or may be first passed through a pipe, and the linear body L When attaching the linear body holding device 1, the linear body holding device 1 may be mounted while controlling the position while lifting the linear body. Further, a bridge member formed so as to fit in the space may be mounted in the space, and the linear body L may be held by the linear body conducting groove or the conductive hole provided in the bridge member. .

FIGS. 4 to 8 show a second embodiment of the present invention. According to this embodiment, two levers 1 each having an enlarged-diameter pressing member 5 axially attached to each other by a shaft 12 at a central portion.
3 and 14, one of the levers 13 is made of two parallel spaced-apart plates, the inner end of which is axially mounted on the shaft 12, and the outer end of which is an outer end. It is axially mounted on a shaft support member 15 composed of two parallel projections fixed inside the peripheral end 4 of the holding device main body 2.

The other lever 14 has a frame member 14a in which a plate member is formed in a U-shape, and a bar member 14b connected to the frame member. The inner side end of the frame member 14a has the above-described shaft. 12 is attached to the shaft. At the outer end of the frame member 14a, there is provided a connecting plate portion 14ab extending in a direction crossing the frame member, and through the hole 14ac provided in the connecting plate portion, the inner end portion of the bar member 14b is connected to the frame member 14a. Plugged in. The diameter of the hole 14ac is slightly larger than the outer diameter of the bar 14b, so that the frame 14a and the bar 14b can slide relative to each other in the axial direction. Bar 14b inside frame 14a
A tip-off prevention member 14c such as a cotter pin is attached to the tip of.

The lever 13 may have the same configuration as the lever 14. The outer end of the bar 14b is mounted on a shaft 17 supported by a shaft support member 16 composed of two parallel projections fixed inside the peripheral end 3 of the holding device main body 2. One end of the bar 14b is connected to the connecting plate portion 14 of the frame 14a.
A compression coil spring 14d, which is in contact with ab and the other end is in contact with the shaft 17, is mounted so as to push the frame member 14a away from the bar member 14b in the axial direction thereof by a spring action.

The shaft bearing members 15 and 16 may be directly fixed to the inner surfaces of the peripheral ends 4 and 3 by welding, pins, or the like, or as shown in FIG. The hook 16a provided integrally with the hook 16 may be hooked on the peripheral edge 3a to be connected to the peripheral edge 3. If it is caught, measures are taken to prevent it from falling off.

As shown in FIG. 5, the levers 13 and 14 are bent at the shaft 12 toward the center of the main body 2 of the holding device. The peripheral ends 3 and 4 approach each other due to the elastic action of the holding device main body 2, and the diameter of the holding device main body 2 is reduced.

With the holding device main body 2 reduced in diameter in this way, the linear body holding device is conveyed to a predetermined position in the pipeline, and then, as shown in FIG. When pushed in the direction, the levers 13 and 14
While pushing the peripheral ends 3 and 4 outward, and expanding the holding device main body 2 while expanding the diameter of the holding device main body 2, finally, as shown in FIG. The outer peripheral surface of the apparatus main body 2 is brought into close contact with the inner surface of the conduit. By the action of the compression coil spring 14d in the compressed state, the degree of close contact of the holding device main body 2 with the inner surface of the conduit is increased, and the pressed state is always maintained.

A locking member (not shown) is provided between the levers 13 and 14 so that the levers 13 and 14 do not return to the folded state after completion of the extension. The locking member is formed, for example, on a mutual contact surface between the lever 13 and the frame member 14a, and includes a concave portion and a projection that engage with each other when the expansion is completed. In the case where the cable is fixed with a pin or the like, the cable can be easily replaced or the position can be easily changed by removing the pin.

As described above, the space between the diameter-increasing pressing member 5 of the linear body holding device 1 according to the second embodiment, which is firmly attached to a desired position in the pipeline, and the pipeline inner surface 9a. As in the first embodiment, an arcuate space 10 for inserting a linear body L such as an optical fiber cable is formed. (FIG. 6)

As in the case of the first embodiment, the linear body L may be passed through another means after the linear body holding device 1 is attached, or may be first passed through the pipe. When the linear body holding device 1 is attached, the linear body holding device 1 may be mounted while lifting the linear body and controlling the position while attaching the linear body holding device 1. As shown in FIG. 7, a piece member 18 formed so as to fit in the space 10 is mounted in the space, and the linear conductive groove or the conductive hole 1 provided in the piece member is provided.
The linear body L may be held at 8a.

FIGS. 9 to 12 show a third embodiment of the present invention. In this embodiment, the structure of the first lever 13 of the diameter-increasing pressing member 5 is different from that of the first embodiment. The configuration is substantially the same as that of the second embodiment, including the configuration. On the other hand, the second lever 14 of the third embodiment
As shown in FIG. 10, has a central cylindrical body 14 e that is open at one end and is axially mounted on the shaft 12, and an outer cylindrical body 14 f that is open at one end and is axially mounted on the shaft 17. 14e, 14f
Are slidably fitted to each other with their open sides located at the center of both sides. In the case shown, the cylindrical body 14e
Is inserted into the cylindrical body 14f, but may be configured such that the cylindrical body 14f is inserted into the cylindrical body 14e. Both cylinders 1
4e, 14f are provided with support portions 14ea, 14fa, respectively, on the opposite side to the open side, and these support portions can be configured as bottom walls extending at right angles to the axis of the cylinder.

An elastic mass 19 made of rubber, plastic, or the like is interposed between the two supporting portions 14ea and 14fa in a compressed state.
Works to push the cylinder 14e out of the cylinder 14f, extend the second lever 14, and separate the shaft 12 from the shaft 17. The first lever 13 may be configured similarly to the second lever 14.

As in the case of the second embodiment, the lever 1
As shown in FIG. 9, the lever 3 and the lever 14 are bent toward the center of the holding device main body 2 at the position of the shaft 12. In such a bent state, the peripheral end 3 of the holding device main body 2 is bent. And 4 approach each other, and the holding device main body 2 is reduced in diameter.

In this bent state, that is, in a state where the diameter of the holding device main body 2 is reduced, the linear body holding device is conveyed in the pipeline, and the vicinity of the shaft 12 is pushed outward at a predetermined position to the levers 13 and 14.
Are extended so as to be lined up in a line (FIG. 11) in the same manner as in the second embodiment. Further, the point that a locking member for preventing the levers 13 and 14 from returning to the bent state in the extended state arranged in a line is provided between both levers as in the case of the second embodiment. .
With the levers 13 and 14 in the extended state, the force to extend the lever 14 provided by the compressed elastic mass 19 (FIG. 12) is transmitted to the peripheral ends 3 and 4 via both levers, It acts as a force for bringing the holding device body 2 into close contact with the inner surface of the fume tube.

As in the above-described embodiments, the linear body L is inserted into the space 10 above the levers 13 and 14 in the extended state. In this case, the insertion groove of the linear body L or the auxiliary having the insertion groove is provided. The piece member 18 may be arranged in the space 10.

In the above second and third embodiments,
The levers 13 and 14 have a configuration in which the levers 13 and 14 are expanded by extruding the shaft attachment portion 12a between them in the radial direction. If the configuration is changed, it is also possible to easily bring the levers 13 and 14 into the extended state by pushing the shaft attachment portion 12a in the axial direction of the linear body holding device.

FIGS. 13 to 15 show a fourth embodiment of the present invention. In this embodiment, levers 13 and 14 are used.
Has a curved shape along the inner peripheral surface of the pipeline in the expanded state, as shown in FIG. 13, and at the shaft attaching portion 12a connecting the two levers, Portions 13g and 14g (see FIGS. 13 and 14) which are bent so as to form the groove 20 for receiving the linear body L are formed in each lever. The levers 13 and 14 are, similarly to the above-described embodiment, respectively provided with the shaft support members 15,
16 and is connected to the peripheral ends 3 and 4 of the holding device main body 2.

The lever 14 has two arm members,
The arm member 14h on the side of the shaft support member 16 is configured as a cylindrical body whose one end is supported by the shaft support member 16, and the arm member 14i on the side of the shaft attachment portion 12a is inserted into the cylindrical arm member 14h. It has a cylindrical portion and the above-mentioned bent portion 14g. Arm member 14 fitted into cylindrical arm member 14h
A pin 14j extending in the lateral direction is provided in the middle of the cylindrical portion i. A pin portion protruding sideways from this cylindrical portion engages with an elongated hole 14ha provided on a side portion of the cylindrical arm member 14h. doing. Therefore, the arm member 14i can move in the longitudinal direction with respect to the cylindrical arm member 14h over a certain range restricted by the elongated hole 14ha, and the lever 14 can extend and contract in the longitudinal direction. is there.

As shown in FIG. 14, the above-mentioned tubular arm member 1
4h, a spring member 21 is housed therein. The spring member pushes and separates the shaft 17 and the pin 14j between the shaft 17 supported by the shaft support member 16 and the pin 14j. Is a compression spring acting as follows. Accordingly, the arm member 14i is subjected to a spring action so as to be pushed out from the cylindrical arm member 14h in the longitudinal direction. This spring action is transmitted from the levers 13 and 14 to the peripheral ends 3 and 4 via the shaft support members 15 and 16 and acts to press and adhere the holding device main body 2 to the inner peripheral surface of the pipeline.

The lever 13 may have the same configuration as the lever 14.

As shown in FIG. 15, the linear body holding device 1 according to the fourth embodiment configured as described above pulls the shaft attachment portion 12a toward the center of the linear body holding device 1 so that the levers 13, 1
4 is bent at the location of the shaft attachment portion 12a and the pipe 9
The inside is conveyed to a predetermined position, and then the shaft attachment portion 12a is pushed radially outward to expand the levers 13 and 14 as shown in FIG. By providing the locking means between the bent portions 13g, 14g of the levers 13, 14, it is possible to prevent both levers from returning to the bent state unintentionally. This locking means can have the same configuration as in the second and third embodiments. In FIG. 13, reference numeral 22 denotes a packing material for protecting the linear body L.

FIG. 16 shows a specific example of the above-mentioned spring member 21, wherein (A) is a coil spring. This coil spring may be symmetric (FIG. 16 (B) -cross section is a perfect circle) in the direction of 90 ° from the compression direction, but asymmetric (FIG. 16 (C) -section is elliptical or elliptical). 16D or a two-dimensional meandering spring).
4 can be reduced in thickness, so that the axial projection of the conduit can be minimized. The effect of this configuration is, for example,
Although the water level may rise to the upper part of the pipeline due to rainwater, by minimizing the protrusion, the linear body holding device hardly obstructs the flow of the fluid.

FIG. 17 shows an embodiment in which a detachable auxiliary hook member 23 is provided on the levers 13 and 14. The auxiliary hook member 23 is used when both of the levers 13 and 14 are additionally laid. Or, it is attached to one of them to hold the linear body La. In addition, levers 13 and 1
A hook (not shown) may be provided in advance to the hook 4 and an additional laying hook 23 may be attached to the hook as required after the linear body holding device is laid.

FIG. 18 shows the skirt 1 on both sides of the lever 14.
4k is shown, in which the edge of the skirt is in close contact with the inner surface of the conduit 9 after the laying of the linear body holding device, and this skirt can also be provided on the lever 13. . The skirt portion forms a smooth flow path so as to prevent foreign substances flowing with the flowing water from being caught on the levers 13 and 14.

In the first to fourth embodiments, the paste is attached to the outer peripheral surface of the holding device main body 2 so that when the holding device main body is mounted on the inner surface of the fume tube, there is a gap between the two. A close contact state without a gap can be provided. In this case, by providing outwardly expanding edges F as shown in FIG. 20 at both ends in the axial direction of the cylindrical holding device main body 2, it is possible to prevent the uncured paste from flowing out. In addition, the water can smoothly flow down at the axial end of the attached holding device body.

[0050]

According to the first to fifth and seventh aspects of the present invention, even if there is an error in the inner diameter of the pipeline, the linear body holding device is always kept in pressure contact with the inner surface of the pipeline. It can be attached, and the amount of protrusion from the inner surface of the pipeline is small, so it does not hinder the flow of the fluid, and furthermore, when cleaning the interior of the pipeline with high pressure, the position may be shifted or come off due to the high pressure cleaning water. Absent. Further, in addition to the above-mentioned effects, the invention of claim 6 is intended to more reliably and firmly maintain the pressure-contact state.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a linear object holding device of the present invention.

FIG. 2 is a side view showing the linear body holding device of FIG. 1 in a reduced diameter state.

FIG. 3 is a side view showing a state in which the diameter of the linear body holding device of FIG. 1 is increased and the linear body holding device is mounted on an inner surface of a pipeline.

FIG. 4 is a plan view illustrating a linear object holding device according to a second embodiment of the present invention.

FIG. 5 is a side view showing the linear body holding device of FIG. 4 in a reduced diameter state.

FIG. 6 is a side view showing the linear body holding device of FIG. 4 in an expanded state.

FIG. 7 is a side view showing a state in which the linear body is laid in a space above the installed linear body holding device.

FIG. 8 is a side view showing a deformation of a connecting portion between the holding device main body and the diameter increasing pressing member.

FIG. 9 is a side view showing a third embodiment of the linear body holding device of the present invention in a reduced diameter state.

FIG. 10 is an enlarged plan view of a diameter increasing pressing member of the linear body holding device in a state where the diameter is reduced as in FIG. 9;

11 is a side view of the linear body holding device when the diameter of the linear body holding device is expanded from the state of FIG. 9 by operating the diameter expanding pressing member.

FIG. 12 is an enlarged plan view of a diameter expanding pressing member of the linear body holding device in a state where the diameter is expanded as shown in FIG. 11;

FIG. 13 is a side view showing a fourth embodiment of the linear body holding device according to the present invention in an expanded state of a diameter-increasing pressing member.

FIG. 14 is a longitudinal sectional view of a telescopic lever which is a component of a diameter increasing pressing member in the linear body holding device of FIG. 13;

FIG. 15 is a front view showing a state of the linear body holding device of FIG. 13 at the time of diameter reduction.

FIG. 16 is a view showing a specific example of a spring member used for a telescopic lever of a diameter increasing pressing member in the linear body holding device of FIG. 13;

FIG. 17 is a side view of the diameter-enlargement pressing member, showing an embodiment in which a lever constituting the diameter-enlargement pressing member is provided with a hook for additionally laying a linear body.

FIG. 18 is a lever cross-sectional view showing a modified example of the lever constituting the diameter increasing pressing member.

FIG. 19 is a perspective view of a plate-like material for manufacturing a conventional linear body holding device.

FIG. 20 is a perspective view of a conventional linear object holding device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Linear object holding device, 2 ... Holding device main body, 3, 4 ...
Peripheral end, 3a: Peripheral edge, 5: Diameter expanding pressing member, 6
... Screw rod, 6a, 6b ... thread part, 7a, 7b ... support plate member, 8a, 8b ... nut, 9 ... fume tube,
9a: inner surface of conduit, 10: space, 12: shaft, 12
a ... shaft attachment portion, 13, 14 ... lever, 13g ... bending portion, 14a ... frame material, 14b ... rod material, 14ab ... connecting plate portion, 14ac ... hole, 14c ... escape prevention member, 14d ... compression coil spring, 14e , 14f ... cylindrical body, 14ea, 14fa ... support part, 14g ... bent part, 14h ... arm member, 14ha ... long hole, 14i ...
Arm member, 14j ... pin, 14k ... skirt part, 1
5, 16: shaft support member, 16a: hook, 17 ...
Shaft, 18: piece member, 18a: conduction hole, 19: elastic mass, 21: spring member, 22: packing material, 2
3: auxiliary hook member, L, La: linear body

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ken Nishimura 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Inside Furukawa Electric Co., Ltd. (72) Inventor Hiroaki Fujiwara 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd.

Claims (7)

[Claims] 1. A linear body holding device which is mounted on an inner peripheral surface of a pipeline at intervals in a pipeline extending direction so as to lay the linear body in the pipeline. A holding device body in which a holding device is wound in a tubular shape so as to be able to expand in diameter and a circumference of which is interrupted, and one end portion is connected to one peripheral end of the cylindrical main body or in the vicinity thereof, and the other peripheral end The other end portion is connected to the portion or the vicinity thereof, and has a diameter-enlarging pressing member that pushes apart both peripheral ends during installation and maintains the outer peripheral surface of the sheet-shaped body in a state of being pressed against the inner peripheral surface of the conduit. A linear object holding device, characterized in that: 2. A diameter-enlarging pressing member is separately screwed into a left and right threaded portion of a threaded bar having left and right sides opposite to each other with a center as a boundary. The linear object holding device according to claim 1, further comprising a nut attached thereto. 3. The enlarged diameter pressing member has two levers which are pivotally attached to each other at a central portion and which can be bent at the pivoted portion, and one lever is pivotally attached to one peripheral end. A spring member, the other lever being pivotally attached to the other peripheral end, at least one lever being extendable in the longitudinal direction, and acting to extend the lever in the longitudinal direction. The linear object holding device according to claim 1, wherein 4. A lever having a spring member is pivotally attached to an associated peripheral end and an inner end of the other lever. A frame member slidably supported in the longitudinal direction, and a compression coil spring loosely fitted to the bar member and inserted between a shaft attachment portion of the bar member and the frame member. The linear object holding device according to claim 3, characterized in that: 5. A lever having a spring member is pivotally attached to a first cylindrical body pivotally attached to an associated peripheral end and an inner end of the other lever. A second cylindrical body slidably fitted to the cylindrical body of the first and second cylindrical bodies, and the second cylindrical body is disposed in an internal space formed by the two cylindrical bodies. The linear object holding device according to claim 3, further comprising: an elastic mass acting in a pushing and releasing direction. 6. A locking member for maintaining the extended state of both levers when the enlarged-diameter pressing member is shifted from the bent state to the extended state in which the pressing members are substantially aligned with each other. The linear object holding device according to any one of claims 3 to 5, characterized in that: 7. The shape of the spring member is characterized in that dimensions in a direction at 90 ° to each other from the compression direction are asymmetric.
The linear object holding device according to claim 3.