TWM507829U - Improved structure of gouging tool - Google Patents

Description

Chisel tool structure improvement

This creation is about a gouge that provides center impact and breakage.

A gouge tool conventionally used to provide a center impact and a break function, such as the first, second, and third figures, the structure comprising a cylindrical cutter bar 10, a gouge portion 11 formed at the front end of the cutter bar, and molding The connecting portion 12 at the rear end of the shank 10. The connecting portion 12 is used to connect a power tool or a handle. The chisel portion 11 may be in the shape of a long conical shape 111 having an extended length as shown in the first figure, or a short conical shape 112 as shown in the second figure, or a pyramidal shape 113 as shown in the third figure. Whether it is a conical or pyramidal gouge, the surface is closed and flat.

The gouge tool can impart an impact force to a solid structure that forms an excavation zone on the impacted surface. The aforementioned conical and pyramidal gouges can provide a concentrated impact force for the excavation of the solid structure, but the impact force alone is not enough, and the gouge must provide considerable destructive force to the impact surface to enable the excavation work. Do more with less. However, the aforementioned gable portion whose surface is closed and flat has limited structural damage to the impact surface. In addition, the demolition area that is destroyed during the excavation process will generate debris, and the superficial excavation area is easy to remove the debris, but the debris in the excavation area is easily blocked by the surface closed and flat chisel, debris Can not be smoothly removed from the excavation area, accumulated in the excavation area will increase the resistance of the excavation. When faced with increasing resistance to the excavation, the operator will try to solve the problem by increasing the impact, so the chiseling tool is getting more and more The greater the impact and reaction, the more easily damaged and the shorter the life.

The purpose of this creation is to provide a structural improvement of the chiseling tool to solve the problem of the chiseling of the above-mentioned conical or pyramidal surface with a flattened gouge.

The chiseling tool for achieving the above object includes a cylindrical shank, a spiral boring portion formed at the front end of the shank, and a connecting portion formed at the rear end of the shank. The connecting portion is used to connect a power tool or a handle. The auger portion is provided with a plurality of helical slots on a surface of a cone, and the spiral slot extends in a direction from the front end to the rear end of the screw gouge and is connected to the surface of the arbor A ridge is formed at the junction of adjacent helical slots.

Further, the width of the spiral gullet is gradually increased from the front end to the rear end of the auger portion.

Further, the depth of the spiral gullet is the deepest in the middle section, and the depth closer to the front end and the rear end is gradually shallowed until it is smoothly connected to the surface of the arbor.

Further, the end point of the rear end of the spiral tooth groove is an elliptical converging portion.

Further, the front end of the auger portion has an isometric tip end.

Further, the arbor is cylindrical or angular.

Further, the connecting portion is a cylindrical shape or an angular column shape.

The effect of this creation:

The auger portion contacts the surface of a solid structure with a front end and transmits an impact force to the surface, and the solid structure forms an excavation area on the impacted surface.

The surface of the auger portion is not closed and flat, but has a concave snail The serration groove and the ridge protruding between the helical slots. In addition to transmitting the impact force on the impact surface of the solid structure, the spiral chisel portion forms a cutting and crushing effect on the surface of the excavation area, thereby generating structural destructive force, and complementing the impact force and the destructive force. Under the effect of multiplication, the efficiency of excavation is improved. In addition, the debris generated by the demolition area during the excavation process can be excluded through the spiral tooth groove, reducing the amount of debris accumulated in the deep part of the excavation area, reducing the drilling resistance, and transmitting the impact on the solid structure based on the above. The force, the structural destructive force on the solid structure excavation area, the acceleration of the removal of debris in the excavation area, and the reduction of the resistance of the excavation can greatly improve the efficiency of the excavation.

The configuration of the isometric tip end achieves convergence of the impact force to the front end of the cutting tool and enhances the destructive nature of the impact force to the solid structure.

The structural features of the spiral groove, such as the groove width, the groove depth, and the elliptical converging portion, allow the debris in the excavation area to be smoothly removed without being accumulated in the spiral gullet.

20‧‧‧Cutter

21‧‧‧Cylinder shank

22‧‧‧Corner cylindrical arbor

23‧‧‧Surfaced and angular cylindrical arbor

30‧‧‧Spiral Gouge

31‧‧‧Spiral cogging

32‧‧‧Elliptical Convergence Department

33‧‧‧The ridge

34‧‧‧ isometric tip end

37‧‧ mid-region

38‧‧‧ front end

39‧‧‧ Backend

40‧‧‧Connecting Department

41‧‧‧Cylindrical connection

42‧‧‧Corner cylindrical connection

43‧‧‧Composite connection

431‧‧‧ lenticular column

432‧‧‧Cylinder

44‧‧‧Composite connection

441‧‧‧ corner column

442‧‧‧Cylinder

443‧‧‧Depression

The first picture shows the traditional type of gouge tool.

The second picture shows the traditional type of gouge tool.

The third picture shows the traditional type of gouge tool.

The fourth figure is a perspective view of the first embodiment of the inventive chiseling tool.

The fifth figure is a side view of the first embodiment of the inventive chiseling tool.

The sixth drawing is a perspective view of a second embodiment of the inventive chiseling tool.

The seventh drawing is a perspective view of a third embodiment of the artificial chiseling tool.

The eighth figure is a perspective view of a fourth embodiment of the inventive chiseling tool.

In order to facilitate the explanation of the central idea expressed in the column of the above novel content, it is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above.

As shown in the fourth and fifth figures, the chiseling tool of the present invention comprises a cylindrical shank 20, a spiral boring portion 30 formed at the front end of the shank 20, and a connecting portion 40 formed at the rear end of the shank 20. .

The shank 20 is a choice of a cylindrical shank 21 (such as the fourth figure), or a cylindrical shank 22 (such as the sixth figure), or a ribbed cylindrical shank 23 (such as the seventh figure). One.

The connecting portion 40 is used for connecting a power tool or a handle, and the configuration may be the cylindrical connecting portion 41 shown in the fourth figure, or the angular cylindrical connecting portion 42 shown in the sixth figure, or the seventh figure and The composite connecting portions 43, 44 shown in the eighth figure. The seventh figure discloses a composite connecting portion 43 in which the convex prism column 431 and the cylinder 432 are compositely connected; the eighth figure discloses a composite connecting portion 44 in which the corner post 441 is combined with the cylinder 442 and the corner post 441 is provided with a recess 443. .

The auger portion 30 is provided with a plurality of helical gullets 31 on the surface of a tapered body. The helical gullets 31 extend in a direction from the front end 38 of the auger portion 30 to the rear end 39 and are connected to each other. To the surface of the arbor 20. The width of the spiral gullet 31 is gradually enlarged from the front end 38 of the auger portion 30 toward the rear end 39, and an elliptical converging portion 32 is formed at the end point. The depth of the helical gullet 31 is the deepest of the middle section 37, the shallower the depth toward the front end 38 and the rear end 39, and the rear end is smoothly connected to the surface of the shank 20. Adjacent helical gullets 31 form a ridge 33 at the interface. The forward end 38 of the auger portion 30 has an isometric tapered end 34.

When the solid structure is excavated, the excavating tool transmits a punch to the solid structure The force of the impact force may be manually hammered or provided by the power tool; the impact force is transmitted to the solid structure along the axial direction of the cutting tool. At the beginning of the cutting, the equal angle taper end 34 forms a concentrated impact force on the solid structure to form an excavation point. The configuration of the isometric tip end 34 is tangible for the formation of the cut point because it achieves the convergence of the impact force to the front end of the cutting tool and enhances the destructive nature of the impact force to the solid structure. Next, the excavating tool continues to transmit an impact force to the solid structure from which the excavating tool penetrates deeper into the solid structure to form an enlarged excavation zone. In addition to transmitting the impact force on the impact surface of the solid structure, the spiral chisel portion 30 forms a cutting and crushing effect on the surface of the excavation region, thereby generating structural destructive force, and the impact force and the destructive force are double. Under the action, improve the efficiency of excavation. In addition, debris generated by the detonation zone that is destroyed during the excavation process can be removed outward through the spiral tooth groove 31, reducing the amount of debris accumulated in the deep portion of the excavation zone, thereby reducing the drilling resistance. A more descriptive feature is that the depth of the helical gullet 31 is the deepest in the middle section, the shallower the depth toward the front end 38 and the rear end 39, and the rear end is smoothly connected to the surface of the shank 20, which makes The debris does not accumulate in the helical gullets 31 and can be smoothly removed from the rear end.

20‧‧‧Cutter

30‧‧‧Spiral Gouge

31‧‧‧Spiral cogging

32‧‧‧Elliptical Convergence Department

33‧‧‧The ridge

34‧‧‧ isometric tip end

37‧‧ mid-region

38‧‧‧ front end

39‧‧‧ Backend

40‧‧‧Connecting Department

Claims (9)

The utility model relates to a structure improvement of a gouge tool, comprising: a column type cutter rod; a spiral chisel portion formed at a front end of the cutter rod; a connecting portion formed at a rear end of the cutter rod; the spiral chisel portion is in a cone shape The surface of the body is provided with a plurality of helical gullets extending in a direction extending from the front end to the rear end of the auger portion and continuing to the surface of the arbor; a ridge is formed at the boundary of the adjacent helical gullets . The structure of the gouge tool according to claim 1, wherein the width of the spiral tooth groove is gradually increased from a front end to a rear end of the screw gouge. The structure of the gouge tool according to claim 2, wherein the depth of the spiral tooth groove is the deepest in the middle portion and gradually becomes shallower toward the front end and the rear end of the spiral gouge. The structure of the gouge tool according to claim 3, wherein the rear end of the spiral tooth groove is an elliptical converging portion. The structure of the gouge tool according to claim 1, wherein the front end of the auger portion has an isometric tip end. The structure of the gouge tool according to the first aspect of the patent application is improved, wherein the tool bar is an alternative form of a cylindrical cutter bar, a corner cylindrical cutter bar and a convex prismatic cutter bar. The structure of the gouge tool according to claim 1, wherein the connecting portion is an alternative form of a cylindrical connecting portion, a corner cylindrical connecting portion and a composite connecting portion. The structure of the gouge tool according to the seventh aspect of the invention, wherein the composite connecting portion is in the form of a composite connection of a convex corner column and a cylinder. The structure of the gouge tool according to claim 7, wherein the composite connecting portion is a composite connection of a corner post and a cylinder, and the corner post is provided with a recess.