JPH07186135A - Chain drive blade, chain for chain driven blade, and chain drive cutter - Google Patents

Abstract

PURPOSE:To replace easily a cut base and cut comparatively easily a matter like a concrete structure and others. CONSTITUTION:A chain drive blade 21 is installed on a chain drive machine 11 to form a chain drive cutter, and composed of a roller chain 22 hung over in the endless shape all over from a drive sprocket to the outer peripheral edge of a chain guide 13, a parallel slide plate 24 to be guidable along the outer peripheral edge of the chain guide 13 on the inner peripheral side of the roller chain 22 and a cutting wire 31 disposed on the outer peripheral side of the roller chain 22. Also a parallel pinch plate 26 for grasping removably the cutting wire 31 between respective hard beads 33 is provided on the outer peripheral side of the roller chain 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chain drive blade for cutting an object to be cut such as a concrete structure, a chain for a chain drive blade, and a chain drive cutting machine.

[0002]

2. Description of the Related Art As a device for easily cutting trees and the like, a chain saw is known in which a chain drive blade is attached to a chain drive machine having a drive sprocket and a chain guide adjacent to it on the same plane. The drive blade includes an endless chain which is meshed with a drive sprocket of a chain drive machine and which is hung on the outer peripheral edge of the chain guide, and a guided member which is provided on the inner peripheral side of the chain so as to be guided by the outer peripheral edge of the chain guide. It is composed of a cutting base material provided on the outer peripheral side of the chain.

However, it is difficult or impossible to replace the conventional chain-driving blade due to consumption of the cutting base material, and it is practically impossible to cut an object to be cut such as a concrete structure including a reinforcing bar. It was

On the other hand, as a device for cutting an object to be cut such as a stone material or a concrete structure, a cutting wire formed by arranging hard beads at predetermined intervals on a wire rope is circulated and driven while being pulled by a traveling drive device at a required tension. Although a saw is known, this device requires a wide space for installing and moving the traveling drive unit even when cutting a relatively small scale, and a cutting wire is used to separate the traveling drive unit and the object to be cut. It was necessary to dispose the cutting wire so that the cutting wire could travel through the guide wheel.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to easily replace a cutting base material and to relatively easily cut an object to be cut such as a concrete structure. And to provide a chain drive cutting machine.

[0006]

A chain drive blade according to the present invention is mounted on a chain drive having a drive sprocket and a chain guide adjacent to the drive sprocket, and is meshed with the drive sprocket and the outside of the chain guide. In a chain drive blade consisting of an endless chain that is stretched around the peripheral edge and a guided member that is provided on the inner peripheral side of the chain so that it can be guided by the outer peripheral edge of the chain guide, and a cutting base material that is provided on the outer peripheral side of the chain, The cutting base material is a cutting wire in which hard beads are arranged at predetermined intervals on a wire rope, and a gripping member that detachably holds the cutting wire between the hard beads is provided on the outer peripheral side of the chain. It is what

In the above structure, the guided member may be guided while being slidably fitted to the outer peripheral edge of the chain guide. For example, a manner in which the guided member is slidably fitted in a guide groove provided at the outer peripheral edge of the chain guide or the outer periphery of the chain guide. It is possible to appropriately select a mode in which the periphery is slidably fitted so as to be sandwiched from both sides thereof. Further, the gripping member may sandwich the cutting wire between the hard beads from both sides. The hard beads are not limited to cylindrical ones, but may be prismatic ones, for example.

As a chain for a chain drive blade used for the chain drive blade, a guided member is provided on the inner peripheral side so as to be guided by the outer peripheral edge of the chain guide, and a cutting wire is provided on the outer peripheral side between the respective hard beads. What is provided is a gripping member that is detachably gripped.

By attaching the chain drive blade to the chain drive machine, a chain drive cutting machine equipped with a cutting wire can be obtained. In this case, if necessary, the chain guide of the chain drive machine may be provided with a guide sprocket rotatably provided at the tip thereof so as to be meshable with the chain.

[0010]

The cutting wire is detachably held between the hard beads on the outer peripheral side of the chain drive blade chain by the gripping member to form the chain drive blade. A chain drive cutting machine is formed by mounting this chain drive blade on the chain drive machine. In this case, the chain is meshed with the drive sprocket of the chain drive machine and hung on the outer peripheral edge of the chain guide, and the inner peripheral side of the chain is guided to the outer peripheral edge of the chain guide by the guided member.

When the drive sprocket is rotated, the chain drive blade is circularly driven along the outer peripheral edge of the chain guide, in which case the chain is driven while the guided member is slidably fitted on the outer peripheral edge of the chain guide. Since the cutting wire is driven in the same direction as the chain while being held by each gripping member, the cutting can be performed by pressing the cutting wire of the chain drive blade against the object to be cut. In addition, when cutting an object to be cut having a large thickness, it is possible to easily deal with it by using a long chain guide that exceeds the thickness.

[0012] When each cutting base material of the cutting wire is worn, the cutting wire may be reattached so that the unworn portion of each cutting base material is exposed to the outer peripheral side, or if necessary, a new cutting wire is attached. It can also be replaced with a different cutting wire.

[0013]

1 is a front view of a main part of a chain drive blade according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II of FIG. 1, and FIG. 3 is a chain using the chain drive blade shown in FIG. It is a side surface schematic diagram of a drive cutting machine.

In FIG. 1, the chain drive cutting machine 1 comprises a chain drive machine 11 and a chain drive blade 21 mounted on the chain drive machine 11. In this case, an endless roller chain 22 of the chain drive blade 21 has a drive sprocket 12 of the chain drive machine 11. The chain guide 13 is engaged with the outer periphery of the chain guide 13 and is composed of a long plate-shaped guide portion 13a from the base end to the front end of the chain and a disc-shaped guide portion 13b at the front end.

On the inner circumference side of the roller chain 22, parallel slide plates 24 as guided members are extended from both side plates of the inner joint links 23 arranged alternately, and each parallel slide plate 24 is The chain guide 13 is slidably fitted to the outer peripheral edge of the chain guide 13 from both sides.

Further, on the outer peripheral side of the roller chain 22, parallel pinching plates 26 as gripping members are extended from both side plates of the outer joint links 25 arranged alternately, and the parallel pinching plates 26 are cut. Cutting wire 31 as a base material
Is installed. Cutting wire 31 is wire rope 32
Hard beads 33 containing diamond abrasive grains are arranged at predetermined intervals, and these beads are detachably inserted into the gaps between the parallel pressing plates 26 at the wire rope 32 portion between the hard beads 33. A stopper (not shown) that partially or wholly closes the upper end opening is detachably provided on each of the parallel pinching plates 26 in order to prevent the wire rope 32 from being detached upward during the cutting operation. Good.

In the chain drive blade 21 and the chain drive cutting machine 1 having the above construction, when the drive sprocket 12 is rotated, the chain drive blade 21 is circulated and driven along the outer peripheral edge of the chain guide 13, and in that case, the roller chain 22 is The parallel sliding plates 24 are driven while slidingly fitted to the outer peripheral edge of the chain guide 13, and the cutting wires 31 are driven by the parallel pressing plates 26.
It is driven in the same direction as the roller chain 22 while being held by. Instead of the disc-shaped guide portion 13b of the chain guide 13, a sprocket that can mesh with the roller chain 22 may be rotatably supported.

[0018]

Since the chain drive blade, chain for chain drive blade and chain drive cutting machine according to the present invention are configured as described above,
The cutting base material can be easily exchanged, and an object to be cut such as a concrete structure can be cut relatively easily.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a chain drive blade according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line I-I of FIG.

3 is a schematic side view of a chain drive cutting machine using the chain drive blade shown in FIG. 1. FIG.

[Explanation of symbols]

 11 Chain Drive Machine 12 Drive Sprocket 13 Chain Guide 21 Chain Drive Blade 22 Roller Chain 24 Parallel Sliding Plate 26 Parallel Clamping Plate 31 Cutting Wire 32 Wire Rope 33 Hard Bead

Claims (5)

[Claims] 1. An endless chain mounted on a chain drive having a drive sprocket and a chain guide that is adjacent to the drive sprocket, meshes with the drive sprocket, and is hung on the outer peripheral edge of the chain guide, and an endless chain. In a chain drive blade consisting of a guided member provided on the peripheral side so as to be guided by the outer peripheral edge of the chain guide and a cutting base material provided on the outer peripheral side of the chain, the cutting base material forms hard beads on the wire rope at predetermined intervals. A chain drive blade comprising a cutting wire that is arranged and a gripping member that is provided on the outer peripheral side of the chain so as to detachably hold the cutting wire between the hard beads. 2. The chain drive blade according to claim 1, wherein the guided member is guided while being slidably fitted to the outer peripheral edge of the chain guide. 3. The chain drive blade according to claim 1, wherein the gripping member clamps the cutting wire between the hard beads from both sides. 4. The chain-driving blade according to claim 1, 2 or 3, wherein a guided member is provided on the inner peripheral side so as to be guided by the outer peripheral edge of the chain guide, and a cutting wire is provided on the outer peripheral side of each of the hard beads. A chain for a chain drive blade, which is provided with a gripping member that is detachably gripped between the chains. 5. A chain drive cutting machine comprising a chain drive machine having a drive sprocket and a chain guide adjacent to it on the same plane, and a chain drive blade mounted to the chain drive machine according to claim 1.