CN107030813A

CN107030813A - Firmer chisel knife

Info

Publication number: CN107030813A
Application number: CN201710340960.6A
Authority: CN
Inventors: 吴克军
Original assignee: NINGBO TIANGONG LING YI TOOLS CO Ltd
Current assignee: NINGBO TIANGONG LING YI TOOLS CO Ltd
Priority date: 2017-05-09
Filing date: 2017-05-09
Publication date: 2017-08-11
Anticipated expiration: 2037-05-09
Also published as: CN107030813B

Abstract

A kind of firmer chisel knife (10), chisel body (12) with length direction (L) extension along the firmer chisel knife (10), and handle (14), wherein, the leading section of the chisel body (12) is chisel edge (16), and the chisel edge (16) is transitioned into the chisel body (12) by inclined preceding chisel face (18)；Wherein, the preceding chisel face (18) gradually increases relative to the angle of inclination of the length direction (L) from the chisel edge (16) to the chisel body (12)；And it is provided with protruding bar (20) on the chisel body (12), the protruding bar (20) protrudes from the side surface of the chisel body (12), limit the Breadth Maximum perpendicular to the length direction (L) of the chisel body (12), and the protruding bar (20) has the deflection of tangential variations relative to the length direction (L), so that in length direction (L) shape in wave shape.So as to which the firmer chisel knife is not easy to be stuck.

Description

Firmer chisel knife

Technical field

The present invention relates to a kind of handheld tool, more particularly to a kind of firmer chisel knife.

Background technology

Traditional firmer chisel knife is the main tool that timber structure is combined in traditional carpentry process, for dig eye, hollow out, tick slot, shovel The making cut, the extensive use in woodwork.When needing woodwork, firmer chisel knife can be all used.Wherein, broad chisel also known as plate Chisel, chisel edge is smooth, is mainly used to dig square hole.The angle of the chisel edge of firmer chisel knife is formed as folded by preceding chisel face and rear chisel face, firmer chisel Operationally, chisel edge first will vertically be cut into wood to knife, cut off wood fiber, then move forward, and wood is cut and picked out.Existing wood Chisel chisel edge and the structure in preceding chisel face so that firmer chisel knife is with the depth increase of incision, and the resistance being subject to also increases therewith, therefore The depth of incision can be all controlled when incision, but the depth of incision is all manual control, is held when wood chip is picked out The timber beyond the end of square hole is easily influenceed into the quality of processing to prizing.Therefore when punchinging, can all occur repeatedly Action, can all return to the action of repeated vertical incision especially when picking out, and this just influences the efficiency and quality of processing.

In addition, when firmer chisel knife is goed deep into wood, because the stress of wood interior is larger, firmer chisel knife is easily clamped at wood Inside, so that user needs to exert great efforts and could extract firmer chisel knife from wood.

The content of the invention

It is a primary object of the present invention to provide a kind of firmer chisel knife with more high efficiency.

To achieve these goals, according to an aspect of the invention, there is provided a kind of firmer chisel knife, with along the wood The chisel body of the length direction L extensions of chisel, and handle, wherein, the leading section of the chisel body is chisel edge, the chisel Sword is transitioned into the chisel body by inclined preceding chisel face；Wherein：Inclination of the preceding chisel face relative to the length direction Angle gradually increases from the chisel edge to the chisel body；And protruding bar is provided with the chisel body, it is described convex The side surface that rib protrudes from the chisel body is played, the maximum perpendicular to the length direction for limiting the chisel body is wide Degree, and the protruding bar has the deflection of tangential variations relative to the length direction L, so that in wave shape in length direction Shape.

Further, the preceding chisel face is that multiple incline configurations are formed, and each inclined-plane is plane；The preceding chisel face it is every The incremental angle at the angle of inclination on each inclined-plane in the incremental angle all same at the angle of inclination on individual inclined-plane or the preceding chisel face Gradually increase.

Further, the waveform shape of the protruding bar is deflected into sine wave deformation relative to the tangential of the length direction Change.

Further, the protruding bar is arranged on the chisel body in the mode of specular.

The advantage of the invention is that：

When initial perpendicular cuts Wood surface, the resistance being subject to is small, can so increase the depth once cut, rear It is continuous to be cut again when picking out wood chip without returning, improve efficiency, also will not other side's bore ends timber damage；Preceding chisel The angle of inclination in face gradually increases, and also allows for the intensity of firmer chisel knife when wood chip is picked out after penetraction depth increase, and placement is picked out Firmer chisel knife broken end during wood chip.

The waveform shape of protruding bar reduces firmer chisel knife and is clamped soil fertility.Further, protruding bar is on chisel body The mode of specular is arranged.This symmetrical mode can effectively improve the shear stress of firmer chisel knife both sides, significantly reduce wood Chisel is clamped ground trend.The deflection is caused, a kind of gradient of the protruding bar relative to the axis of chisel body.The inclination Degree synchronously changes with waveform shape.This gradient is favourable, to prevent the generation that chisel body is clamped.

Brief description of the drawings

The Figure of description for constituting the part of the present invention is used for providing a further understanding of the present invention, and of the invention shows Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 shows the structural representation of the firmer chisel knife according to the present invention；

Fig. 2 shows the enlarged diagram of the chisel edge part of the firmer chisel knife according to the present invention；

Fig. 3 shows the schematic cross-section according to the chisel body of Section A-A in Fig. 1；

Fig. 4 shows the schematic cross-section according to the chisel body of section B-B in Fig. 1.

Embodiment

It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model that the present invention is protected Enclose.

It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using Data can exchange in the appropriate case, so as to embodiments of the invention described herein.In addition, term " comprising " and " tool Have " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing series of steps or unit Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.

As shown in figure 1, the present invention specifically provides a kind of firmer chisel knife 10, with prolonging along the length direction L of firmer chisel knife 10 The chisel body 12 stretched, and handle 14.The leading section of chisel body 12 is chisel edge 16, and chisel edge 16 passes through inclined preceding chisel face 18 It is transitioned into the chisel body 12.

With reference to shown in Fig. 2, angle of inclination of the preceding chisel face 18 relative to the length direction L is from chisel edge 16 to chisel body 12 Direction gradually increase.More specifically, on from chisel edge 16 to the direction of chisel body 12, be disposed with the first chisel face 181, Second chisel face the 182, the 3rd chisel face 183, wherein, the angle between the first chisel face 181 and length direction L is A1, the second chisel face 182 Angle between length direction L is A2, and the angle between the 3rd chisel face 183 and length direction L is A3.

Included angle A 1 close to the direction of chisel edge 16 is smaller, and larger close to the included angle A 2 of chisel body 12.Cut in initial perpendicular When entering Wood surface, the resistance being subject to is small, can so increase the depth once cut, it is follow-up when picking out wood chip not With return cut again, improve efficiency, also will not other side's bore ends timber damage；The angle of inclination in preceding chisel face gradually increases Greatly, the intensity of firmer chisel knife when wood chip is picked out after penetraction depth increase is also allowed for, firmer chisel knife end is broken when wood chip is picked out in placement Split.

Further, the incremental angle all same at the angle of inclination on each inclined-plane in preceding chisel face 18 or preceding chisel face it is each tiltedly The incremental angle at the angle of inclination in face gradually increases.That is A3-A2=A2-A1 or A3-A2 ＞ A2-A1.

Alongst L is provided with protruding bar 20 to the firmer chisel knife 10 on chisel body 12.

With reference to shown in Fig. 3 and Fig. 4, Fig. 3 shows the schematic cross-section according to the chisel body of Section A-A in Fig. 1, Fig. 4 Show the schematic cross-section according to the chisel body of section B-B in Fig. 1.Wherein, protruding bar 20 protrudes from chisel body 12 Side surface, and limit the Breadth Maximum perpendicular to the length direction L of chisel body 12.With reference to shown in Fig. 1, raised ribs Bar 20 has the deflection of tangential variations relative to length direction L, so that in length direction L shapes in wave shape.

Further, there are multiple local maximums and multiple local minimums, the plurality of office in length direction L waveform shapes Alongst L occurs in shape in ripple for portion's maximum and multiple local minimums.From a maximum, along length Direction extends, and protruding bar 20 extends up to next minimum continuously along a direction for deviateing length direction L, then Original length direction is extended back into towards length direction L direction continuously along another, next pole is then continued and extend to Big value.

Further, the waveform shape can be rendered as sine wave shape, but the invention is not restricted to this, the waveform shape also may be used To show other shapes.

The firmer chisel knife 10 is described below in detail to have the advantage that.

When firmer chisel knife 10 gos deep into wood, the position of the position of multiple minimums and multiple maximum is against wood stress Direction applies reaction force, so that producing shearing force weakens the stress of wood extruding firmer chisel knife 10, so as to reduce firmer chisel knife 10 It is clamped soil fertility.

Further, protruding bar 20 is arranged on chisel body 12 in the mode of specular.This symmetrical mode The shear stress of firmer chisel knife both sides is can effectively improve, firmer chisel knife is significantly reduced and is clamped ground trend.The deflection is caused, raised A kind of gradient of the rib 20 relative to the axis of chisel body.The gradient synchronously changes with waveform shape.It is this to tilt Degree is favourable, to prevent the generation that chisel body is clamped.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims

1. a kind of firmer chisel knife (10), the chisel body (12) with length direction (L) extension along the firmer chisel knife (10), with And handle (14), wherein, the leading section of the chisel body (12) is chisel edge (16), and the chisel edge (16) passes through inclined preceding chisel Face (18) is transitioned into the chisel body (12)；

It is characterized in that：The preceding chisel face (18) relative to the length direction (L) angle of inclination from the chisel edge (16) to The chisel body (12) gradually increases；And it is provided with protruding bar (20), the raised ribs on the chisel body (12) Bar (20) protrudes from the side surface of the chisel body (12), limit the chisel body (12) perpendicular to the length direction (L) Breadth Maximum, and the protruding bar (20) has the deflection of tangential variations relative to the length direction (L), from And in length direction (L) shape in wave shape.

2. firmer chisel knife (10) according to claim 1, it is characterised in that the preceding chisel face (18) is multiple incline configuration Into each inclined-plane is plane；The incremental angle all same at the angle of inclination on each inclined-plane of the preceding chisel face (18) or institute The incremental angle at the angle of inclination on each inclined-plane in chisel face (18) gradually increases before stating.

3. firmer chisel knife (10) according to claim 1, it is characterised in that the waveform shape of the protruding bar (20) relative to The tangential of the length direction (L) is deflected into sinusoidal waveform change.

4. firmer chisel knife (10) according to claim 1, it is characterised in that the protruding bar (20) is on the chisel sheet Body (12) is arranged in the mode of specular.