JP2516911Y2 - Engine cutter for concrete - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete cutter used for breaking or cutting concrete.

[0002]

2. Description of the Related Art Conventionally, when concrete is cut with an engine cutter, a large amount of dust is generated, which not only reduces work efficiency but is also unfavorable for the health of workers.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an engine cutter which significantly reduces dust scattering when cutting concrete.

[0004]

A means for solving the problems will be described with reference to the drawings. The engine cutter for concrete according to the present invention supports a cutter shaft 31 parallel to the crankshaft 12 at the tip of an arm piece 21 extending from the engine case 11, and connects the crankshaft 12 and the cutter shaft 31 by a belt transmission mechanism 40. , A fan-shaped box cover 3 for covering the non-cutting portion of the disk-shaped concrete cutter 32 attached to the cutter shaft 31
3 is attached to the arm piece 21, a dust collecting cylinder 51 connected to the dust collector 50 is openly connected to the outer wall of the cover 33 on the cutter entrance side L, and is rotated by the crankshaft 12 and the engine case 11 The blower passage 61 of the blower 60 attached to the above is ejected toward the dust collector 50 in the dust collecting cylinder 51, and an air flow toward the dust collecting collector 50 is generated in the dust collecting cylinder 51.

[0005]

EXAMPLE A cutter shaft 31 is supported in parallel with the crankshaft 12 at the tip of an arm piece 21 extending from the crankcase portion of the engine case 11.

Drive pulley 4 mounted on the crankshaft 12
1 and the driven pulley 42 attached to the cutter shaft 31, the V belt 43 is stretched to form a belt transmission mechanism 40. 44 is a V belt cover.

A fan-shaped box cover 3 for covering the non-cutting portion of the disk-shaped concrete cutter 32 attached to the cutter shaft 31.
3 is attached to the arm piece 21.

A dust suction cylinder 51 connected to the dust collector 50 is open-connected to the outer wall of the cover 33 on the cutter entrance side L.

A blower path 61 of a blower 60 rotated by the crankshaft 12 and attached to the engine case 11 is ejected toward the dust collector 50 in the dust collector 51, and the dust collector 51 is installed in the dust collector 51. It is configured so that an air flow toward 50 is generated.

[0010]

When the crankshaft 12 of the engine rotates, the cutter 32 rotates to cut concrete, and the blower 60 rotates to send air to the blower passage 61. Dust collector 51
The air blown toward the dust collector 50 inside the dust collector 51
An air flow toward the dust collector 50 is created at the entrance of the. The dust generated during cutting along with this air flow is collected in the dust collector 50.

[0011]

EFFECT OF THE INVENTION According to the present invention, most of the dust generated when cutting concrete with an engine cutter can be collected in a dust collector, which contributes to improving the efficiency of concrete cutting and the health of workers. Can be done.

[Brief description of drawings]

FIG. 1 is a front view.

FIG. 2 is a plan view.

[Explanation of symbols]

 11 Engine Case 12 Crank Shaft 21 Arm Piece 31 Cutter Shaft 32 Cutter 33 Cover 40 Belt Transmission Mechanism 41 Drive Pulley 42 Driven Pulley 43 V Belt 44 V Belt Cover 50 Dust Collector 51 Dust Collection Tube 60 Blower 61 Blower L L Cutter Entry Side

Claims (1)

(57) [Scope of utility model registration request] 1. A cutter shaft (31) is supported on the tip of an arm piece (21) extending from the engine case (11) in parallel with the crank shaft (12), and the crank shaft (12) and the cutter shaft (31) are supported. Connected by belt conduction mechanism (40),
A fan-shaped box cover (3) that covers the non-cutting part of the disk-shaped concrete cutter (32) attached to the cutter shaft (31)
3) is attached to the arm piece (21), the dust collecting cylinder (51) connected to the dust collector (50) is openly connected to the outer wall of the cover (33) on the cutter entrance side (L), and the crankshaft is attached. The blower passage (61) of the blower (60) rotated by (12) and attached to the engine case (11) is ejected toward the dust collector (50) in the dust collector (51), and the dust collector (50) 51) An engine cutter for concrete, characterized in that an air flow toward the dust collector (50) is generated in the 51).