TWI659802B - Manual grinding device - Google Patents

Abstract

A hand-grinding tool includes a base and a grinding group. The grinding group has two elastic members. The elastic members have a plurality of spaced-apart clamping sections. The clamping sections are curved and have a convex arc surface. The convex arc surfaces of each of the clamping sections are provided with a grinding layer, and the two elastic members are fixed to the base and are opposite to each other from left to right, and the clamping sections of the two elastic members cross each other. After the blade edge of the cutter is pushed between the two abutment sections of the elastic member, the left and right the abutment sections will clamp inwardly against the blade edge, so that the abrasive layer is close to the blade edge, and then the tool is pushed back and forth or up and down. The blade can rub the abrasive layer to achieve the abrasive effect.

Description

Hand sharpening tool

The present invention relates to a hand sharpening tool, and a sharpening tool for grinding and dressing cutting edges.

In the past, when grinding and dressing worn tools, most of them used sharpening stones. However, sharpening stones can only be used for single-side sharpening. .

Therefore, sharpening tools that can perform double-side sharpening have appeared on the market. This new type of application, such as the Republic of China Application No. 095220725 "Hand-held sharpener structure", has a handle on the top edge of a handle. Body, the base body is provided with an opening, and the inner edge of the opening is provided with two abrasive sheets arranged in a V-shape, so when using, the grip can be held and the opening can be placed on the blade of the cutter, and then when the sharpener is pulled, the two The abrasive sheet can simultaneously grind and trim the blade to achieve the function of double-side sharpening, thereby reducing the time required for sharpening. However, although this structure has the function of double-side sharpening, because the V-shaped angle presented by the two grinding pieces is fixed, it is impossible to properly grind and trim all the cutting edges with different blade angles.

In view of the above-mentioned shortcomings, the inventor believes that it is necessary to make corrections. Based on many years of experience in related technology and product design and manufacturing, he adheres to good design concepts and researches and creates the above disadvantages. After continuous efforts, The hand-grinding tool of the present invention is introduced, which corrects the product structure to improve the excellent efficacy of the product.

The main purpose of the hand-grinding tool of the present invention is to provide a sharpening tool that can properly grind and trim tools with different angles of the blade edges.

In order to achieve the purpose of pre-opening, the hand grinding tool of the present invention includes a base and a grinding group: a base; a grinding group having two elastic members, the elastic member has a fixed section, and one side of the fixed section extends A plurality of clamping abutments having a predetermined angle are clamped to the fixed segment, and each of the clamping abutments is separated by a predetermined distance. The clamping abutments are curved and have a convex arc surface. Both curved surfaces are provided with a grinding layer, and the two elastic members are fixed to the top of the base by the fixed section, so that the two elastic members are opposite to each other left and right, and the clamping sections of the two elastic members cross each other.

When in use, the blade edge of the blade is pushed into the clamping section of the two elastic members, so that the blade edge will open the clamping section of the left and right sides, and the clamping section of the two sides will clamp the blade inward to grind. The layer is closely attached to the blade edge. At this time, when the blade is pushed back and forth or up and down, the blade edge can rub the abrasive layer to achieve the function of bilateral sharpening. As the angle of the blade edge between the push-in sections is different, the left and right sides The clamping sections will also be stretched to different degrees, but because the grinding layer is provided on the convex arc surface, it also has radian, so even if the two clamping sections are stretched to different degrees, the grinding layers on the two convex arc surfaces are still It will be kept close to the edge of the blade, so that the grinding tool can properly grind and trim the blades with different angles of the blade, in order to improve the conventional technology "handheld sharpener structure" due to the two abrasive discs. Because it is at a fixed V-shaped angle, it is impossible to properly grind and trim blades with different blade angles.

1‧‧‧ base

2‧‧‧grinding group

21‧‧‧elastic parts

211‧‧‧Fixed section

212‧‧‧Garment

213‧‧‧ convex arc

22‧‧‧ abrasive layer

23‧‧‧Into the knife space

3‧‧‧ cushion

4‧‧‧Side cover group

41‧‧‧Cover

42‧‧‧Handle

5‧‧‧ spacer

The first figure is a schematic perspective view of a hand-grinding tool of the present invention.

The second figure is a schematic front view of a hand-grinding tool of the present invention.

The third diagram is a partially enlarged schematic diagram of the second diagram.

The fourth figure is a schematic diagram of the use of the hand sharpening tool of the present invention in a double-side sharpening knife.

The fifth figure is a schematic diagram of the spacer provided with the hand-grinding tool of the present invention.

The sixth diagram is a schematic diagram of the use of the single-side sharpening knife by the hand-grinding cutter of the present invention through a spacer.

The seventh figure is a schematic perspective view of the second embodiment of the hand-grinding tool of the present invention.

The present invention relates to a hand-grinding tool, [see the first figure, the second figure and the third figure], which comprises: a base (1); a grinding group (2), having two elastic members (21), The elastic member (21) has a fixed section (211). A plurality of clamping sections (212) at a predetermined angle with the fixed section (211) extend on one side of the fixed section (211). 212) are all separated by a predetermined distance, and the clamping sections (212) are curved and have a convex curved surface (213), and the convex curved surfaces (213) of each clamping section (212) are provided A grinding layer (22). A diamond grinding layer containing a diamond material can be used as the grinding layer (22), and the two elastic members (21) are fixed to the top of the base (1) with the fixing section (211), so that the two The elastic members (21) are opposite to each other from left to right, and the sandwiched sections (212) of the two elastic members (21) cross each other, and the two elastic members (21) face each other with the convex arc surface (213), and The top and bottom ends of the clamping section (212) of the two elastic members (21) are separated by a predetermined distance, and a knife-entry space (23) is defined between the top ends of the clamping section (212) on the left and right sides; A soft pad (3) is fixed on the top of the base (1) and is located in the grinding group (2 ) Between the two elastic members (21).

One side cover group (4) has two cover cases (41), both of which are fixed on the top of the base (1) and separated by a predetermined distance, so that the clamping of the grinding group (2) Arrive (212) is located between the two casings (41), and both the casings (41) are provided with a handle (42) on the outside.

The hand sharpening tool of the present invention can be used for double-side sharpening and single-side sharpening. [Please refer to the first, second, third, and fourth figures] When performing double-side sharpening, the blade of the tool is inserted into the knife. The space (23) is pushed between the clamping sections (212) of the left and right elastic members (21), so that the clamping sections (212) of the left and right sides are stretched by the blade edge of the blade, and the clamping sections (212) of the left and right sides That is, it will clamp the blade inward due to the returned elastic force, and then make the abrasive layer (22) on the convex arc surface (213) of the clamped segment (212) close to the two sides of the blade, and then push the tool forward or backward or up and down. The blade edge is rubbed against the abrasive layer (22) to achieve the function of grinding and dressing. When pushing and pulling the tool up and down, if the user pushes the tool downward too much, the blade edge will first hit the cushion (3) without directly hitting it. The base (1) protects the blade and prevents blade damage. In addition, when the blades with different angles of the blades need to be ground, the blades of the left and right elastic members (21) will open the clamping sections (212) of the left and right to different degrees because the blades of different angles, but because the grinding layer (22) is provided in a convex arc The surface (213) has the same arc, so even if the clamping sections (212) on the left and right sides are stretched to different degrees, the abrasive layer (22) will remain close to the blade edge, and the angle of the blade edge will be different. Blades can be properly ground and trimmed. [Please refer to the fifth and sixth figures] When a single-side sharpening is performed, a spacer (5) is first set between the two elastic members (21) to separate the clips of the two elastic members (21). The abutting section (212), the abutting section (212) of the two elastic members (21) will clamp against the spacer (5) inward to make the abrasive layer (22) close to the spacer (5). The edge of the sharpened blade faces the abrasive layer (22) and pushes the blade between the clamping section (212) and the spacer (5), and the blade is clamped between the clamping section (212) and the spacer (5). In this way, only one side of the blade to be ground is closely attached to the grinding layer (22), and then the effect of single-side sharpening can be achieved when the tool is pushed and pulled.

In the first embodiment of the hand-grinding tool of the present invention, [see the first figure] the shape of the fixed section (211) and the clamping section (212) of the elastic member (21) is set to a flat plate shape. [Please refer to the seventh figure together] In the second embodiment, it is shown that the clamping section (212) can also be set in a cylindrical shape.

In the hand-grinding tool of the present invention, [refer to the first and seventh figures] the fixing section (211) of the elastic member (21) is preferably detachably fixed to the base (1), as shown in the figure. It is shown that the fixing section (211) is fixed to the base (1) in a screw-locking manner, so that the elastic member (21) can be removed and replaced or repaired during a period of use.

The hand-grinding tool of the present invention has the following advantages:

1. In addition to being used for double-side sharpening to shorten the time required for sharpening operations, it can also be used for single-side sharpening after setting the spacer to meet different sharpening needs.

2. With the elastic force of the elastic member and the special configuration of the convex arc surface, even when the blades with different angles are pushed between the clamping sections of the two elastic members, the abrasive layers of the two elastic members can be kept close to the blade. , So that the hand-grinding tool can properly grind and trim the tools with different blade angles.

The above is only one preferred embodiment of the present invention, and it should not be used to limit the scope of the present invention. In other words, all equal changes and modifications made in accordance with the scope of the patent application shall still fall within the scope of this creative patent.

In summary, when the present invention is known to be novel and progressive, and the present invention has not been seen in any publications, it shall comply with Article 22 of the Patent Law.

Claims (10)

A hand-grinding tool is used for double-side sharpening. It includes: a base; a grinding group with two elastic members, the elastic member has a fixed section, and a plurality of fixed sections extend on one side of the fixed section and are clamped by the fixed section. The clipped sections of a predetermined angle are separated by a predetermined distance from each other, and the clipped sections are curved and have a convex curved surface, and the convex curved surfaces of each clipped section are provided with a grinding layer. And the two elastic members are fixed to the top of the base with the fixed section, so that the two elastic members are opposite to each other left and right, and the clamping sections of the two elastic members cross each other, and the two elastic members are convexly arced Faces are facing each other, and the top end and the bottom end of the two abutment sections of the two elastic members are separated by a predetermined distance, and a knife-entry space is defined between the top ends of the two abutment sections of the left and right sides. The hand-grinding tool according to item 1 of the scope of the patent application, wherein the clamping section of the grinding group is set to be a flat plate or a cylinder. The hand-grinding tool according to item 1 of the scope of patent application, wherein a diamond abrasive layer containing a diamond material is used as the abrasive layer of the abrasive group. The hand-grinding tool according to item 1 of the scope of patent application, wherein a soft pad between the two elastic members of the grinding group is fixed on the top of the base. The hand-grinding tool according to item 1 of the scope of the patent application, wherein the base is provided with a side cover group, the side cover group has two housings, and the two housings are fixed on the top of the base and are separated by a predetermined distance. So that the clamping section of the grinding group is located between the two shells, and both of the shells are provided with a handle. A hand-grinding tool for a single-side sharpening knife includes: a base; a grinding group having two elastic members, the elastic member having a fixed section, and a plurality of fixed section clips extending on one side of the fixed section; Clipped sections with a predetermined angle, each clipped section is separated by a predetermined distance, and the clipped sections are curved and have a convex curved surface, and the convex curved surfaces of each clipped section are provided with grinding Layer, and the two elastic members are fixed to the top of the base with the fixed section, so that the two elastic members are opposite to each other left and right, and the clamping sections of the two elastic members cross each other, and the two elastic members are convex The curved surfaces face each other, and the top end and the bottom end of the two abutment sections of the two elastic members are separated by a predetermined distance, and a knife-entry space is defined between the top ends of the two abutment sections of the left and right sides; a spacer is provided in the Between the two elastic members of the grinding group. The hand-grinding tool according to item 6 of the patent application scope, wherein the clamping section of the grinding group is set to a flat plate shape or a cylindrical shape. The hand-grinding tool according to item 6 of the scope of patent application, wherein the abrasive layer of the abrasive group uses a diamond abrasive layer containing a diamond material. The hand-grinding tool according to item 6 of the patent application scope, wherein a soft pad between the two elastic members of the grinding group is fixed on the top of the base. The hand-grinding tool according to item 6 of the patent application scope, wherein the base is provided with a side cover group, the side cover group has two housings, both of which are fixed on the top of the base and are separated by a predetermined distance. So that the clamping section of the grinding group is located between the two shells, and both of the shells are provided with a handle.