TWI732625B - Knife handle group and its handle for preventing cutting tools - Google Patents

Abstract

The present invention provides a knife handle set for preventing cutting tools, which is used in conjunction with a knife, and is provided with a knife handle, an end cover, a knife, a positioning key, a tightening piece and a tightening nut; the knife handle is provided with at least one clamping device Slot, the at least one clamping slot has a guide channel and a limit slot, the guide channel communicates with the limit slot and is arranged with an included angle; the end cover is combined with the knife handle and is provided with at least one The guide groove, the at least one guide groove is communicated with the guide channel; the tool passes through the end cap and the knife handle, and is provided with a key groove; the positioning key is provided in the key groove and is provided with a convex post, the The protruding column extends into the guide channel and the limiting groove, so that the positioning key and the tool are confined to the handle; the clamping piece is combined with the handle and resists the end of the tool extending into the handle , And the protruding column can be pressed into the limiting groove; the compression nut is sleeved on the tool holder, wherein the tool can be guided by the guiding channel to the limiting groove, and is limited by the Slot limit; in order to provide a knife handle group and its knife handle to prevent cutting tools.

Description

Knife handle group and its handle for preventing cutting tools

The present invention relates to a knife handle, in particular to a knife handle set and the knife handle for preventing the knife from being dropped.

The existing tool holder set for preventing the tool from falling off mainly includes a side-fixed tool holder, a tool and a locking member. The side-fixed knife handle is provided with a through groove. The outer peripheral surface of the cutter is provided with a pressing groove. To lock the tool to the side-fixed handle, first extend the tool into the side-fixed handle and rotate the tool so that the tightening groove corresponds to the penetration groove of the side-fixed handle , And then insert the locking member into the penetration groove of the side-fixed handle, and press against the tightening groove of the tool, so as to lock the tool on the side-fixed handle.

However, after the tool extends into the side-fixed handle, the clamping groove of the tool is blocked by the side-fixed handle, and the user cannot know the position of the tight groove from the side-fixed handle, and needs to rotate repeatedly The tool can adjust the tightening groove to a position corresponding to the penetration groove of the side-fixed handle. The existing anti-dropping knife handle set allows the user to rotate the tool to the position where the compression groove corresponds to the penetration groove of the side-fixed knife handle. It is time-consuming and inconvenient. Therefore, the existing anti-dropping The knife handle group does have its needs to be improved.

In order to solve the problem that the position of the tightening groove cannot be known after the tool is inserted into the side-fixed handle of the existing tool handle assembly for preventing the tool from falling, it is not easy for the user to rotate the tool to make the tightening groove and the side-fixed type The position corresponding to the penetration groove of the knife handle causes the assembly process to be time-consuming and inconvenient. The main aspect of the present invention is The purpose is to provide a tool handle that can solve the current technical problems, which is used in conjunction with a tool, and is provided with: an accommodation chamber formed in the knife handle and provided with at least one clamping groove, the at least one The clamping groove is concavely formed on the inner circumferential surface of the accommodating chamber, and has a guiding channel and a limiting groove. The guiding channel is concavely formed on the inner circumferential surface of the accommodating chamber. The groove is recessedly formed on the inner peripheral surface of the containing chamber and communicates with the guide channel, and is arranged at an angle with the guide channel; a coupling hole is formed in the knife handle , And connected with the accommodating chamber; wherein the tool can be guided by the guide channel to the limit slot, and be limited by the limit slot.

Still further, as in the aforementioned knife handle, the containing chamber is provided with three locking grooves, and the three locking grooves are formed on the inner peripheral surface of the containing chamber at intervals.

The present invention further provides a knife handle set for preventing cutting tools, which is provided with: the knife handle as described above; an end cover, the end cover is combined with the end of the knife handle adjacent to the accommodating chamber, and is provided with at least one guide Groove, the at least one guiding groove is concavely formed on the inner peripheral surface of the end cover, and is arranged in straight line opposite and communicating with the guiding channel of the at least one clamping groove of the tool holder; wherein the tool passes through the end The cover extends into the accommodating chamber of the tool holder, and is provided with a key groove, which is recessed and formed on the outer peripheral surface of the tool; a positioning key, the positioning key is arranged in the key groove of the tool, and is provided with a body and A convex post, the main body is accommodated in the key groove, the convex post is protrudingly arranged on the surface of the main body away from the key groove, and can extend into the guiding channel of the at least one locking groove and the limiting groove, so that the The positioning key and the tool are confined to the handle; a urging member, the urging member is combined with the coupling hole of the knife, and can move relative to the coupling hole along the axial direction of the knife, so that the urging member can resist When the tool extends into the end of the tool handle, the protrusion of the positioning key can be pressed against the limiting groove of the at least one locking groove; and A tightening nut is sleeved on the outside of the accommodating chamber of the knife handle.

Preferably, the knife handle set for preventing the knife from falling as described above is provided with a bearing ring, and the bearing ring is sleeved on the outer peripheral surface of the holding chamber of the knife handle, and Between the handle and the tightening nut.

Preferably, the tool handle set for preventing the tool from falling as described above, wherein the pressing member is screwed to the coupling hole.

With the above technical means, the effect obtained by the present invention is increased: after the user aligns the protruding column of the positioning key with one of the guide grooves of the end cap, the user only needs to move the The tool extends into the end cap and the guide channel straightly opposite to the guide groove until the end of the tool away from the processing end abuts on the pressing member, and then rotates the tool to extend the protruding column of the positioning key The tool can be assembled into the tool holder by inserting it into the limit slot connected with the guide channel, because the guide groove of the at least one guide groove of the end cap and the guide groove of the at least one clamping groove of the tool holder The channel has a guiding effect, and the present invention does not make it difficult for the user to rotate the tool to the position where the tightening groove corresponds to the penetration groove of the side-fixed handle, unlike the existing anti-dropping knife handle set, but has It is easy to assemble and the assembly process saves time. Furthermore, during the assembling process, the protruding column of the positioning key is guided by the guiding groove and the guiding channel all the way without falling.

10: Knife handle

11: Storage room

111: card slot

112: Guidance Channel

113: Limit slot

12: Wear a slot

121: Combination hole

20: bearing ring

30: end cap

31: Guide slot

40: Tool

41: keyway

50: positioning key

51: body

52: convex column

60: Compression

70: tighten the nut

Fig. 1 is a perspective cross-sectional view of a preferred embodiment of the present invention.

Fig. 2 is a partial cross-sectional perspective exploded view of a preferred embodiment of the present invention.

Figure 3 is a cross-sectional side view of a preferred embodiment of the present invention.

Fig. 4 is a quarter perspective cross-sectional view of the knife handle of the preferred embodiment of the present invention.

Figure 5 is a cross-sectional side view of the knife handle of the preferred embodiment of the present invention.

Fig. 6 is a cross-sectional end view of the handle of the preferred embodiment of the present invention taken along the A-A cutting plane line of Fig. 5;

7 to 10 are schematic diagrams of the assembly method of the preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented in accordance with the content of the specification, the preferred embodiment shown in the figure is further used to describe in detail as follows: The preferred embodiment of the tool holder set is shown in Figures 1 and 2, which includes a tool holder 10, a bearing ring 20, an end cover 30, a tool 40, a positioning key 50, a clamping member 60 and a clamping nut 70, Wherein: as shown in Figs. 2, 4 and 5, the knife handle 10 is provided with an accommodation chamber 11 and a penetration groove 12. The accommodating chamber 11 is formed in the knife handle 10, and is provided with at least one locking groove 111. The at least one locking groove 111 is concavely formed on the inner peripheral surface of the accommodating chamber 11 and has a guiding channel 112 and a limiting groove 113. The guiding channel 112 is concavely formed on the inner peripheral surface of the accommodating chamber 11 and extends along the axial direction of the tool holder 10. The limiting groove 113 is concavely formed in the accommodating chamber. The inner peripheral surface of the chamber 11 is communicated with the guiding channel 112, and is arranged at an angle with the guiding channel 112; in a preferred embodiment of the present invention, the limiting groove 113 and The included angle between the guiding channels 112 is a right angle; further, as shown in FIG. 6, the accommodating chamber 11 is provided with three clamping grooves 111, and the three clamping grooves 111 are formed at intervals in the accommodating chamber 11 On the inner circumference. The penetration groove 12 is formed at one end of the knife handle 10 opposite to the accommodating chamber 11, and is connected to the accommodating chamber 11, the penetration groove 12 is provided with a coupling hole 121, and the coupling hole 121 is provided in the penetration The groove 12 is adjacent to the accommodating chamber 11, is formed in the knife handle 10, and is communicated with the accommodating chamber 11; further, the coupling hole 121 is a screw hole.

As shown in FIGS. 1 to 3, the bearing ring 20 is sleeved on the outer peripheral surface of the holder 10 where the accommodating chamber 11 is provided.

As shown in FIGS. 2 to 4, the end cap 30 is locked and combined with the end of the knife handle 10 adjacent to the accommodating chamber 11, and is provided with at least one guiding groove 31, which is concavely formed in The inner peripheral surface of the end cap 30 is directly opposite and communicated with the guiding channel 112 of the at least one locking groove 111 of the knife handle 10 Further, the end cover 30 is provided with three guide grooves 31, each of the guide grooves 31 and the guide channel 112 of one of the locking grooves 111 are linearly opposed and communicated with each other.

As shown in FIGS. 1 to 3, the tool 40 passes through the end cap 30 and extends into the accommodating chamber 11 of the tool handle 10, and is provided with a key groove 41, and the key groove 41 is concavely formed on the outer peripheral surface of the tool 40.

As shown in Figures 1 to 3, the positioning key 50 is detachably arranged in the keyway 41 of the cutter 40, and is provided with a body 51 and a protrusion 52. The body 51 is accommodated in the keyway 41, and the protrusion The post 52 protrudes from the surface of the body 51 away from the key groove 41, and can extend into the guide channel 112 of the at least one locking groove 111 and the limiting groove 113, so that the positioning key 50 and the tool 40 are limited The limiting groove 113 of the at least one locking groove 111 of the knife handle 10 is located. In other preferred embodiments, the positioning key 50 can also be integrally formed in the key groove 41 of the cutter 40.

As shown in Figures 1, 3 and 4, the clamping member 60 extends into the knife handle 10 through the end of the knife handle 10 where the through groove 12 is provided, and is combined with the coupling hole 121 of the knife handle 10, and can be moved along The axial direction of the tool handle 10 is moved relative to the coupling hole 121, so that the pressing member 60 resists the end of the tool 40 extending into the inside of the tool handle 10, and the protrusion 52 of the positioning key 50 is shown in FIG. As shown, it is pressed against the limiting groove 113 of the at least one locking groove 111, thereby reducing the degree of shaking of the tool 40 relative to the tool holder 10 during processing; further, the outer peripheral surface of the pressing member 60 is provided with a The external thread enables the pressing member 60 to be screwed and combined with the coupling hole 121 and to move relative to the coupling hole 121 along the axial direction of the tool holder 10.

As shown in Figures 1 to 3, the compression nut 70 is sleeved on the bearing ring 20, so that the compression nut 70 is sleeved on the outside of the holder 10 where the accommodating chamber 11 is provided, and the bearing ring 20 is between the handle 10 and the tightening nut 70.

The assembly method of the present invention is shown in Figures 7 and 8. First, the bearing ring 20, the end cap 30, the tightening member 60 and the tightening nut 70 are all assembled on the handle 10, and the positioning key 50 is placed in the key groove 41 of the tool 40, and then the protrusion 52 of the positioning key 50 is linearly opposed to one of the guide grooves 31 of the end cap 30, and the tool 40 can be shown in FIG. Together with the positioning key 50 extend into the end cap in sequence 30 and the accommodating chamber 11 of the knife handle 10, during this process, the protrusion 52 of the positioning key 50 passes through one of the guide grooves 31 of the end cap 30 and is in line with the guide groove 31 in sequence Opposite the guide channel 112, until the end of the tool 40 extends into the tool handle 10 and abuts against the pressing member 60, and then rotate the tool 40 as shown in FIG. The tool 40 can be assembled to the tool holder 10 by rotating and extending into the limiting groove 113 communicating with the guiding channel 112. After the assembly is completed, as shown in FIG. 10, since there is a gap between the limiting groove 113 accommodating the protruding column 52 and the protruding column 52, it is easy to cause the tool 40 to sway relative to the tool holder 10 during the machining process. To avoid this situation, the user can use a screwdriver to extend into the through slot 12 of the handle 10 and combine it with the tightening member 60, and then rotate the tightening member 60 so that the tightening member 60 is screwed. While being coupled to the coupling hole 121, it can move relative to the coupling hole 121 to press the cutter 40 away from the penetration groove 12, so that the protruding post 52 of the positioning key 50 is pressed against the at least In the limiting slot 113 of a locking slot 111.

With the above technical means, the effect obtained by the present invention is increased: after the user aligns the protruding column 52 of the positioning key 50 with one of the guide grooves 31 of the end cap 30, they only need to follow the handle 10 Extend the tool 40 into the end cap 30 and the guide channel 112 straightly opposite to the guide groove 31 until the end of the tool 40 away from the processing end abuts against the pressing member 60, and then Rotate the tool 40 so that the protruding column 52 of the positioning key 50 extends into the limiting groove 113 communicating with the guide channel 112, and the tool 40 can be assembled to the tool handle 10, because the end cap 30 The at least one guide groove 31 of the tool holder 10 and the guide channel 112 of the at least one locking groove 111 of the tool handle 10 have a guiding effect. Rotating to the position where the tightening groove corresponds to the penetration groove of the side-fixed knife handle has the advantages of easy assembly and time-saving assembly process. Furthermore, during the assembling process, the protruding column 52 of the positioning key 50 is guided by the guiding groove 31 and the guiding channel 112 all the way, and will not fall.

10: Knife handle

113: Limit slot

121: Combination hole

20: bearing ring

30: end cap

40: Tool

50: positioning key

51: body

52: convex column

60: Compression

70: tighten the nut

Claims (6)

A kind of knife handle, which is used with a knife, and is provided with: An accommodating chamber formed in the knife handle and provided with at least one clamping groove, the at least one clamping groove is recessedly formed on the inner peripheral surface of the accommodating chamber, and has a guide channel And a limiting groove, the guiding channel is concavely formed on the inner circumferential surface of the accommodating chamber, and the limiting groove is concavely formed on the inner circumferential surface of the accommodating chamber and communicates with the guiding channel , And set at an angle with the guide channel; A coupling hole, the coupling hole is formed in the knife handle and is communicated with the accommodating chamber; The tool can be guided to the limit slot by the guide channel, and be limited by the limit slot. The knife handle according to claim 1, wherein the accommodating chamber is provided with three clamping grooves, and the three clamping grooves are formed on the inner circumferential surface of the accommodating chamber at intervals. A knife handle set for preventing cutting tools, which is provided with: The knife handle as described in claim 1 or 2; An end cover, the end cover is combined with the end of the knife handle adjacent to the accommodating chamber, and is provided with at least one guiding groove, the at least one guiding groove is concavely formed on the inner peripheral surface of the end cover, and is connected to the knife handle The guiding channels of the at least one locking slot are arranged straightly opposite and communicated with each other; The tool passes through the end cover and extends into the accommodating chamber of the tool handle, and is provided with a key groove, and the key groove is concavely formed on the outer peripheral surface of the tool; A positioning key, the positioning key is set in the keyway of the tool, and is provided with a body and a protruding post, the body is accommodated in the keyway, the protruding post is protrudingly provided on the surface of the body away from the keyway, and can The guiding channel and the limiting slot extending into the at least one clamping slot, so that the positioning key and the tool are limited to the tool handle; An urging member, the urging member is combined with the coupling hole of the knife handle, and can move relative to the coupling hole along the axial direction of the knife handle, so that the urging member resists the end of the knife extending into the knife handle, The protruding post of the positioning key can be pressed against the limiting groove of the at least one locking groove; and A tightening nut is sleeved on the outside of the accommodating chamber of the knife handle. According to claim 3, the tool handle assembly of the anti-dropping tool is provided with a bearing ring, and the bearing ring is sleeved on the outer peripheral surface of the holder provided with the accommodating chamber, and is located between the tool handle And between the tightening nut. According to claim 3, the tool handle set for preventing the tool from falling, wherein the pressing member is screwed and coupled with the coupling hole. According to claim 4, the tool handle set for preventing the tool from falling, wherein the pressing member is screwed to the coupling hole.

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