CN210525155U - Tool knife - Google Patents
Tool knife Download PDFInfo
- Publication number
- CN210525155U CN210525155U CN201921261230.8U CN201921261230U CN210525155U CN 210525155 U CN210525155 U CN 210525155U CN 201921261230 U CN201921261230 U CN 201921261230U CN 210525155 U CN210525155 U CN 210525155U
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- Prior art keywords
- clamping
- shell
- tool
- locking
- pivot
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- Expired - Fee Related
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- 238000007599 discharging Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a tool knife, include: the first shell is provided with a pivot, and the pivot is provided with an axis; the second shell is rotatably pivoted to the pivot and is provided with a first clamping and abutting part; the tool apron is movably accommodated between the first shell and the second shell; the locking and releasing mechanism penetrates through the second shell and does not rotate relative to the pivot, can axially slide between a locking position and a releasing position along the pivot and can rotate around the axis, and comprises a pressing end capable of axially moving in an external operation mode and a clamping and abutting end linked with the pressing end, and the clamping and abutting end is provided with a second clamping and abutting part; one of the first clamping and abutting part and the second clamping and abutting part is provided with at least one clamping groove, the other clamping and abutting part is provided with at least one clamping protrusion which can be releasably embedded with the at least one clamping groove, one of the at least one clamping groove and the at least one clamping protrusion comprises a first inclined surface inclined relative to the axis, and the other clamping and abutting part abuts against the first inclined surface. The utility model discloses can change the blade fast safely.
Description
Technical Field
The utility model relates to a tool knife.
Background
A common tool knife includes a housing, a knife holder slidably disposed in the housing, and a blade mounted on the knife holder. The blades of a typical tool knife are trapezoidal and have a sharp cutting edge on each of opposite sides, and after one of the cutting edges is dulled or damaged, the blade is turned over to use the other cutting edge or to replace the blade.
However, the tool insert is screwed with respect to the two housing members to clamp the tool holder and the insert between the two housing members, such as taiwan patent No. TWI 309197. Therefore, when the blade is to be turned over or replaced, the two shell members must be separated from each other, and the blade is not easy to be assembled, disassembled and replaced.
Therefore, there is a need for a new and improved tool knife that solves the above problems.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a tool knife, which is capable of quickly and safely replacing a blade.
To achieve the above object, the present invention provides a tool knife, including: a first housing having a pivot with an axis; a second shell rotatably pivoted to the pivot and provided with a first clamping and abutting part; the cutter holder is movably accommodated between the first shell and the second shell and can be operated and moved outside; a locking mechanism which is arranged in the second shell in a penetrating way, does not rotate relative to the pivot, can axially slide between a locking position and a releasing position along the pivot and can rotate around the axis, and comprises a pressing end capable of moving in an external operation shaft and a clamping and abutting end linked with the pressing end, wherein the clamping and abutting end is provided with a second clamping and abutting part; wherein, one of the first clamping part and the second clamping part is provided with at least one clamping groove, the other one is provided with at least one clamping protrusion which can be releasably embedded with the at least one clamping groove, one of the at least one clamping groove and the at least one clamping protrusion comprises a first inclined plane which is inclined relative to the axis, and the other one comprises a butting part which is butted against the first inclined plane; when the locking and unlocking mechanism is positioned at the locking position and the at least one clamping protrusion is embedded with the at least one clamping groove, the second shell cannot rotate relative to the first shell; when the locking and unlocking mechanism is located at the releasing position, the at least one clamping protrusion and the at least one clamping groove are mutually separated, and the second shell can rotate around the locking and unlocking mechanism relative to the first shell.
The utility model has the advantages that:
the utility model provides a tool knife can change the blade fast safely.
Drawings
Fig. 1 is a perspective view of a preferred embodiment of the present invention.
Fig. 2 is an exploded view of a preferred embodiment of the present invention.
Fig. 3 is another exploded view of a preferred embodiment of the present invention.
Fig. 4 is a side view of a preferred embodiment of the present invention.
Fig. 5 is an operation diagram of a preferred embodiment of the present invention.
Fig. 6 is a partial schematic view of a preferred embodiment of the present invention.
Fig. 7 is a partial cross-sectional view of a preferred embodiment of the present invention.
Fig. 8 is another partial schematic view of a preferred embodiment of the present invention.
Fig. 9 to 11 are schematic structural configurations of the tool holder and the housing according to a preferred embodiment of the present invention.
Fig. 12 to 13 are schematic sectional views taken along a-a in fig. 4.
Fig. 14 is a schematic cross-sectional view taken along line B-B in fig. 4.
Detailed Description
The following description is given by way of example only, and not by way of limitation, of the scope of the invention.
Referring to fig. 1 to 14, which show a preferred embodiment of the present invention, a utility knife 1 of the present invention includes a first housing 10, a second housing 20, a knife holder 30 and a locking mechanism 40.
The first housing is provided with a pivot 11 having an axis 111. The second housing is pivotally connected to the pivot and has a first engaging portion 21. The tool holder is movably accommodated between the first shell and the second shell, and the tool holder can be operated and moved externally. The locking mechanism is disposed through the second housing and does not rotate relative to the pivot, the locking mechanism is preferably coaxial with the pivot, and the locking mechanism can slide axially along the pivot between a locking position (fig. 7 and 12) and a releasing position (fig. 13) and can rotate around the axis, the locking mechanism includes a pressing end 41 capable of moving axially in an external operation and a clamping end 42 linked with the pressing end, and the clamping end is provided with a second clamping portion 421. One of the first engaging portion and the second engaging portion has at least one engaging groove 211, the other has at least one engaging protrusion 422 capable of releasably engaging with the at least one engaging groove, one of the at least one engaging groove and the at least one engaging protrusion includes a first inclined surface 423 inclined with respect to the axis, the other includes an engaging portion 212 engaging with the first inclined surface, so as to stably engage without wobbling, but the engaging groove and the engaging protrusion may have no inclined surface. When the locking and unlocking mechanism is positioned at the locking position and the at least one clamping protrusion is embedded with the at least one clamping groove, the second shell cannot rotate relative to the first shell; when the locking mechanism is located at the releasing position, the at least one locking protrusion and the at least one locking groove are disengaged from each other, and the second housing can rotate around the locking mechanism relative to the first housing (fig. 5 and 13). Thereby, the blade 100 can be replaced quickly and safely.
One of the pressing end and the engaging end has at least one engaging hole 411, and the other has at least one engaging arm 424 engaging with the engaging holes. Preferably, the second housing further includes at least one guide slot 213 extending around the axis, and the at least one locking arm is rotatably disposed through the at least one guide slot around the axis. Each of the guide slots includes a wide section 214 that widens radially outward to facilitate the insertion of the snap arm. In this embodiment, the peripheral wall of the pressing end is provided with two fastening holes, the fastening end is provided with two fastening arms, the end of each fastening arm is provided with a hook 425, the second housing is provided with two guide slots, and each fastening arm passes through one guide slot and then is hooked in one fastening hole by the hook (fig. 6 and 8). The second housing can stably and smoothly rotate around the two clamping arms through the two guide grooves.
In this embodiment, the second housing has the at least one protrusion, the engaging end has the at least one engaging groove, the at least one protrusion includes a plurality of ribs 426 extending in a radial direction, and the at least one engaging groove includes a plurality of grooves 215 (which may be configured as a protrusion and a plurality of grooves) extending in a radial direction and releasably engaged with the plurality of ribs, so as to increase the engaging effect and the multi-stage positioning. The abutting portion includes a second inclined surface 216 capable of abutting against the first inclined surface, the first inclined surface and the second inclined surface have substantially the same inclination with respect to the axis, the depth of the engaging groove is greater than the height of the engaging protrusion (fig. 7), however, the inclination of the first inclined surface and the second inclined surface with respect to the axis may be different, so as to ensure that the first inclined surface and the second inclined surface are stably engaged against each other without shaking. The locking and unlocking mechanism further includes an elastic element 43 sleeved on the pivot and elastically abutted between the first housing and the abutting end to ensure that the abutting portion is reliably and stably abutted against the first inclined surface.
One of the first and second shells is provided with at least one spring fastener 50 in a protruding manner, and the other is provided with at least one concave 51 which can be positioned with the at least one spring fastener in a releasable manner. One of the first and second housings further includes at least one through hole 52 for accommodating the at least one spring clip, and a cover 53 for covering the at least one through hole. In this embodiment, the first housing is provided with the through hole, a clamping member 54 and a resilient member 55 of the at least one spring clamping member can be easily assembled in the through hole, and the spring clamping member can be simply sealed by the cover member (fig. 14) without additionally necking the through hole. The second housing further includes a slot 22, the tool holder is provided with a limiting member 31 (fig. 10 and 11) extending toward the second housing and being capable of entering and exiting the slot, the tool holder is capable of moving between a tool-out position and a tool-in position relative to the first housing; when the tool apron is located at the tool retracting position (as shown in fig. 10), the limiting member moves out of the slot and does not interfere with the second housing in a rotating direction of the second housing, and when the locking and unlocking mechanism is located at the releasing position, the second housing can rotate around the locking and unlocking mechanism relative to the first housing; when the tool seat moves towards the tool discharging position (as shown in fig. 11), the limiting member moves into the slot, and the second housing cannot rotate relative to the first housing. Therefore, the second shell can be rotated under the condition that the blade is not exposed, and the user is prevented from being injured.
Preferably, the first housing further has a magnetically attractable member 60 (fig. 2 and 3), and the magnetically attractable member and the tool holder are magnetically attracted relative to each other. At least one of the magnetically attractable element and the tool holder is magnetic, for example, the magnetically attractable element is a magnet, the tool holder includes a magnetic metal material, and the magnetically attractable element can magnetically attract the tool holder, so that the tool holder can be retained on the first housing without being randomly detached when the blade is removed. One of the first and second shells can be provided with a stop edge 12 capable of stopping the other shell, so as to ensure the closed position of the first and second shells, and preferably, the other shell is provided with a notch 23 or a stop shoulder (figure 2) capable of accommodating the stop edge, so that the appearance is smoother.
The above description is the preferred embodiment of the present invention and the technical principle applied by the same, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention all belong to the protection scope of the present invention.
Claims (10)
1. A tool knife, comprising:
a first housing having a pivot with an axis;
a second shell rotatably pivoted to the pivot and provided with a first clamping and abutting part;
the cutter holder is movably accommodated between the first shell and the second shell and can be operated and moved outside;
a locking mechanism which is arranged in the second shell in a penetrating way, does not rotate relative to the pivot, can axially slide between a locking position and a releasing position along the pivot and can rotate around the axis, and comprises a pressing end capable of moving in an external operation shaft and a clamping and abutting end linked with the pressing end, wherein the clamping and abutting end is provided with a second clamping and abutting part;
wherein, one of the first clamping part and the second clamping part is provided with at least one clamping groove, the other one is provided with at least one clamping protrusion which can be releasably embedded with the at least one clamping groove, one of the at least one clamping groove and the at least one clamping protrusion comprises a first inclined plane which is inclined relative to the axis, and the other one comprises a butting part which is butted against the first inclined plane;
when the locking and unlocking mechanism is positioned at the locking position and the at least one clamping protrusion is embedded with the at least one clamping groove, the second shell cannot rotate relative to the first shell; when the locking and unlocking mechanism is located at the releasing position, the at least one clamping protrusion and the at least one clamping groove are mutually separated, and the second shell can rotate around the locking and unlocking mechanism relative to the first shell.
2. The tool knife of claim 1, wherein one of the pressing end and the engaging end has at least one engaging hole, and the other of the pressing end and the engaging end has at least one engaging arm engaging with the plurality of engaging holes.
3. The tool knife of claim 2, wherein the second housing further comprises at least one guide slot extending around the axis, and the at least one locking arm is rotatably disposed through the at least one guide slot around the axis.
4. The tool blade of claim 3 wherein each of said channels includes a wide section that widens radially outwardly.
5. The utility knife of claim 1, wherein one of the first and second housings is provided with at least one spring catch and the other is provided with at least one recess releasably positionable with the at least one spring catch.
6. The tool knife of claim 5, wherein one of the first housing and the second housing further comprises at least one through hole for receiving the at least one spring clip, and a cover for covering the at least one through hole.
7. The utility knife of claim 1, wherein the at least one catch includes a plurality of laterally extending ribs and the at least one catch includes a plurality of laterally extending grooves adapted to releasably engage the plurality of ribs.
8. The tool knife of claim 1, wherein the first housing further comprises a magnetically attractable member, and the magnetically attractable member and the tool holder are magnetically attractable with respect to each other.
9. The tool knife of any one of claims 1 to 8, wherein the abutting portion includes a second inclined surface that abuts against the first inclined surface.
10. The tool holder of any one of claims 1-8, wherein the second housing further comprises a channel, the holder having a restriction member extending toward the second housing and accessible from the channel, the holder being movable relative to the first housing between an extended position and a retracted position; when the tool apron is located at the tool retracting position, the limiting piece moves out of the groove channel and does not interfere with the second shell in the rotating direction of the second shell, and when the locking and unlocking mechanism is located at the releasing position, the second shell can rotate around the locking and unlocking mechanism relative to the first shell; when the tool apron moves towards the tool discharging position, the limiting piece moves into the groove channel, and the second shell cannot rotate relative to the first shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921261230.8U CN210525155U (en) | 2019-08-06 | 2019-08-06 | Tool knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921261230.8U CN210525155U (en) | 2019-08-06 | 2019-08-06 | Tool knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210525155U true CN210525155U (en) | 2020-05-15 |
Family
ID=70600431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921261230.8U Expired - Fee Related CN210525155U (en) | 2019-08-06 | 2019-08-06 | Tool knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210525155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338962A (en) * | 2019-08-06 | 2021-02-09 | 明欣国际有限公司 | Tool knife |
-
2019
- 2019-08-06 CN CN201921261230.8U patent/CN210525155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112338962A (en) * | 2019-08-06 | 2021-02-09 | 明欣国际有限公司 | Tool knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 |