WO2012171319A1

WO2012171319A1 - Utility knife blade seat and utility knife comprising blade seat

Info

Publication number: WO2012171319A1
Application number: PCT/CN2012/000073
Authority: WO
Inventors: 温昊
Original assignee: Wen Hao
Priority date: 2011-06-15
Filing date: 2012-01-16
Publication date: 2012-12-20
Also published as: CN202114738U

Abstract

Disclosed are a utility knife blade seat and a utility knife comprising the blade seat, wherein the utility knife blade seat comprises a blade seat body (3) and a snapping fit assembly, with the snapping fit assembly comprising a snapping leaf (4), which snapping leaf (4) is movably connected to the blade seat body (3) and on the snapping leaf (4) are provided snapping pieces (42, 43), which adapt to at least two locating notches (61, 62) on a blade (6), with the snapping pieces (42, 43) being respectively snapped into the locating notches (61, 62). The utility knife blade seat enables the blade (6) to form a better snapping fixation with the blade seat body, such that the possibility of the blade being fallen therefrom during use is reduced.

Description

Utility knife holder and utility knife tool including the same

Technical field

The utility model relates to a cutter, in particular to a utility knife holder and a practical knife cutter comprising the same.

Background technique

Traditional utility knives are usually divided into fixed, folding and telescopic, generally used for cutting paper, cloth, leather, etc.; such as Chinese patent CN93208241.6 (publication date June 22, 1994), published "a kind of The telescopic cutting rope utility knife "is to use the pressing sliding block to push the blade hidden in the shank to extend step by step, but it is inconvenient to replace the blade; and the Chinese patent CN03223149. 0 (publication date December 24, 2003) is open "A combined utility knife", by installing the blade in the groove of the knife seat, the upper moon cover and the lock piece are matched, the blade can be replaced more conveniently, but the structure is more complicated, and the blade needs to be replaced first. Opening the lock piece and rotating the upper cover also have the disadvantage of inconvenient use; Chinese Patent CN200420102117.2 (publication date: February 8, 2006) discloses "a utility knife" which is a mounting groove for setting the blade in the holder. Inside, and set the fixing hole position on the knife seat, the blade is fixed by the screw in the hole position. This structure requires tools when replacing the blade, and there is also a shortage of use.

In the process of using the existing tool, the blade has the problem of easy falling off and inaccurate positioning. For example, when a tool is used to compare a hard material (such as a carpet), when the user uses a relatively large force, the blade is not fixed firmly, which affects the use.

Utility model content

The technical problem to be solved by the utility model is to provide a practical knife holder which is firmly connected.

A practical knife holder, including:

Knife body;

a clamping component, the clamping component includes a locking piece, the clamping piece is movably connected to the holder body, and the clamping piece is provided with a locking component adapted to at least two positioning notches on the blade, the Some The card components are respectively inserted into the positioning gaps.

In the present example, the card is in the form of a rod, and the card is rotatably coupled to the holder body by a shaft.

In addition, the fastening component further includes: a flywheel, the flywheel is rotatably connected to the seat body, and the flywheel is disposed at a back position of the seat body; and the flywheel is provided with a positioning device for displacing the card position Notched dial.

Preferably, the fastening component further comprises an elastic element, and the elastic component and the clamping piece are sequentially stacked on the front side of the seat body and at a position corresponding to the blade.

The positioning recess includes a first positioning notch and a second positioning notch. The front surface of the clamping piece is provided with a first clamping member and a second clamping member, and the first clamping member includes a first protruding portion of the locking portion. The second latching member includes a third protrusion protruding from the latching piece; the second protrusion and the third protrusion are respectively adapted to the first positioning notch and the second positioning notch. A first protrusion is disposed on the upper end of the front surface of the card sheet, and one end of the elastic member is crimped onto the first protrusion. a fourth protrusion is further disposed on the back surface of the card holder, and a corresponding hole for restricting the movement of the fourth protrusion is formed on the holder body corresponding to the fourth protrusion, and the fourth protrusion passes through the The limiting hole is crimped to the dial of the flywheel.

A practical knife holder, including:

Knife body;

a clamping component, the clamping component comprises a locking piece, the clamping piece is movably connected to the seat body through a shaft, and at least one clamping component corresponding to the blade is arranged on the clamping piece, and the rotation axis of the locking piece Located at the rear end of the latching member, the pivoting axis is disposed in the upper and lower horizontal lines of the blade.

Preferably, the rotation axis is disposed in a horizontal line on the upper side of the blade and the bottom edge of the U-shaped groove.

More preferably, the axis of rotation is disposed at a central position between the upper edge of the blade and the bottom edge of the U-shaped groove. The fastening component further includes: a flywheel, the flywheel is rotatably coupled to the seat body, and the flywheel is disposed on a back surface of the seat body and corresponding to a position of the card seat; the flywheel is provided with a card position The part is dialed away from the positioning pin. The fastening component further includes an elastic member for engaging the latching piece into the blade positioning notch, and the elastic component and the latching piece are sequentially coaxially stacked on the front surface of the seat body and at a position corresponding to the blade. The utility model also provides a utility knife cutter, comprising:

Tool holder body: telescopic or folding knife body;

a blade: at least two positioning notches are provided on a side of the blade;

Utility Knife Holder: It further includes:

The seat body: an accommodation space for accommodating the blade;

a clamping component, the clamping component includes a locking piece, the clamping piece is movably connected to the holder body, and the clamping piece is provided with at least two clamping parts adapted to at least two positioning notches on the blade, The card components are respectively inserted into the positioning notches.

Compared with the prior art, the utility model overcomes the prior art technical prejudice. In the prior art, the blade and the tool holder are mainly fixed by a point to make the blade and the tool holder not separated during use. The utility model utilizes at least two positioning notches on the existing blade, and at least two or more card members are also disposed on the tool holder to form at least two card points, and the two card points can make the blade and the blade body A line contact is formed between the two, which can greatly improve the firmness of the blade when used. In addition, the utility model can also form two card points by using one card point and a rotating shaft center, so that the blade and the tool holder body form a better clamping and improve stability.

DRAWINGS

Figure 1 is an exploded view of Embodiment 1 of the present invention;

2 is a schematic view of the blade of the first embodiment of the present invention attached to the body of the blade; FIG. 3 is a schematic view of the blade of the first embodiment of the present invention taken out from the holder body;

Figure 4 is a schematic view showing the structure of Embodiment 2 of the present invention.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

Example 1

As shown in Figure 1, a utility knife cutter includes: Tool holder body: telescopic or folding knife body;

Blade 6: at least two positioning notches are provided on the side of the blade;

A utility knife holder, the tool holder further comprising:

Knife body 3, clamping components.

The housing body 3 is provided with an accommodation space for housing the blade 6.

At least two positioning notches are disposed on the upper side of the blade 6. The clamping component is provided with at least two clamping members adapted to the positioning notch, and the clamping members are respectively engaged in the corresponding positioning notches.

In this embodiment, the upper side of the blade 6 is provided with two U-shaped positioning notches: a first positioning notch 61 and a second positioning notch 62. For example, in the specific implementation, more than two positioning notches may be provided on the blade 6, so the present invention does not limit this.

Corresponding to the two positioning notches, the clamping component is also provided with two clamping members.

The clamping component comprises a flywheel 2, a card slot 4, and an elastic component 5. The locking piece 4 has a rod shape; the elastic member 5 and the locking piece 4 are sequentially coaxially stacked on the front surface of the holder body 3 and adapted to the position of the blade 6, and both pass through the boss 32 of the holder body 3 and The seat body 3 is rotatably connected. The stud 32 can be regarded as the axis of rotation of the card tab 4 and the elastic member 5. As can be seen from Fig. 2, the axis is slightly higher in the horizontal direction than the upper side of the blade 6, and the horizontal direction here refers to the direction parallel to the upper side of the blade.

The flywheel 2 is provided with a dial 21 for displacing the card tab 4 away from the positioning notch 61. The flywheel 2 is rotatably coupled to the seat body 3 through a hole 32 in the seat body 3, and the flywheel 2 is disposed at a position corresponding to the card piece 4 on the back surface of the seat body 3.

The latching plate 4 is provided with two latching members which are adapted to the positioning notches of the blade, and the latching members are respectively engaged in their corresponding positioning notches. In this embodiment, the front surface of the card sheet 4 is provided with a first card member and a second card member. The first latching member includes a second protrusion 42 protruding from the latching tab 4; the second latching member includes a third protrusion protruding from the latching tab 4. The first protrusion 41 may also be disposed on the upper portion of the card sheet 4, and the second protrusion 42 and the first protrusion 41 may be located together in the U-shaped groove of the blade. The second protrusion 42 corresponds to the first positioning notch 61, and the third protrusion 43 corresponds to the second positioning notch 62; the second protrusion 42 and the third protrusion 43 are arranged side by side, and the first protrusion 41 and the second protrusion 42 are up and down Parallel settings. The first protrusion 41 may be slightly smaller than the second protrusion 42 and the second protrusion 42 and the third protrusion 43 The inch is adapted to the first positioning notch 61 and the second positioning notch 62, respectively. One end of the elastic member 5 is crimped onto the first protrusion 41 for engaging the second protrusion 42 and the third protrusion 43 into the first positioning notch 61 and the second positioning notch 62, respectively.

The back surface of the latching plate 4 is also provided with a protrusion, which is called a fourth protrusion 44, corresponding to the fourth protrusion 44. The holder body 3 is provided with a limiting hole 31 for restricting the movement of the protrusion, and the fourth protrusion 44 is pressed against the dial 21 of the flywheel 2 through the limiting hole 31.

The present invention also includes a cover plate 7, which covers the blade 6, which is fixed to the holder body 3 by bolts 1.

The following describes the use process of the utility model in detail:

As shown in FIG. 2, the blade 6 is fixed on the seat body 3. At this moment, the first protrusion 41 and the second protrusion 42 extend into the first positioning notch 61, and the third protrusion 43 extends into the second positioning notch. 62. One end of the elastic member 5 is crimped onto the first protrusion 41, and the second protrusion 42 and the third protrusion 43 are elastically pressed into the first positioning notch 61 and the second positioning notch 62, respectively. At the same time, the fourth projection 44 passes through the limiting hole 31 to press the dial 21 on the flywheel 2. At this time, the blade 6 is fixed in the holder body 3 in the above manner.

As shown in FIG. 3, a schematic view of the blade 6 taken out from the seat body 3, at this moment, the flywheel 2 is rotated, and the dial 21 thereon is rotated, and the fourth protrusion 44 pressed thereon is rotated together, so that Drive the card to rotate together. At this time, the first protrusion 41, the second protrusion 42 and the third protrusion 43 are respectively separated from the first positioning notch 61 and the second positioning notch 62, and the blade 6 is reopened without external force, so the blade 6 can be very It is easily taken out from the holder body 3.

If a new blade is to be placed, the blade is placed on the seat body corresponding to its position, and the flywheel is released. Under the action of the elastic member 5, the first protrusion 41, the second protrusion 42 and the third protrusion From the other, the three are respectively inserted into the first positioning notch 61 and the second positioning notch 62, thereby achieving the purpose of fixing the new blade.

Example 2

As shown in Figure 4, a utility knife holder includes:

The seat body 3: is provided with a receiving space for accommodating the blade 6; The clamping component comprises: a clamping piece 4, a flywheel 2 and an elastic element 5 for engaging the locking piece into the blade positioning notch.

The flywheel 2 is rotatably connected to the seat body 3, and the flywheel 2 is disposed on the back of the seat body 3 and corresponding to the position of the card seat; the flywheel 2 is provided with a dial for displacing the card member away from the positioning notch.

The elastic member 5 and the registration piece 4 are sequentially coaxially stacked on the front surface of the holder body and at a position suitable for the blade.

The clamping piece 4 is movably connected to the holder body 3 via a shaft. The clamping piece 4 is provided with at least one locking member adapted to the blade. The rotation axis of the locking piece is located at the rear end of the clamping member, and the rotating axis is at The position between the upper and lower horizontal lines of the blade. In this way, the locking point of the rotating shaft center and the latching member can reinforce the fixing of the blade and the holder. Of course, in this example, other points (such as a fixing hole in the middle of the blade) may be provided on the blade, and the rotation axis and the fixing hole shape may also fix the fixing of the blade and the holder. Also, the axis of rotation may be at a position between the upper edge of the blade and the lower edge of the U-shaped groove. In particular, the central axis of rotation is at a middle position between the upper edge of the blade and the lower edge of the U-shaped groove, and is located on the same horizontal line as the click point of the latching member 4 that is engaged with the positioning notch. This structure can greatly improve the non-detachability of the blade.

In this embodiment, the upper side of the blade 6 is provided with two U-shaped positioning notches: a first positioning notch 61 and a second positioning notch 62. And the upper and lower sides corresponding to the two U-shaped grooves are on the same horizontal line. For example, in the specific implementation, one or more positioning notches may be provided on the blade 6, so the new application does not limit this.

The clamping component comprises a flywheel 2, a card slot 4, and an elastic component 5. The elastic member 5 and the locking tab 4 are coaxially stacked on the front side of the holder body 3 and adapted to the position of the blade 6, and both are rotatably connected to the holder body 3 through the boss 32 of the holder body 3. The stud 32 can be regarded as the axis of rotation of the card tab 4 and the elastic member 5. As can be seen from Fig. 4, the stud 32 as the axis is not higher than the upper side of the blade 6. The position of the axis is described above. In the present embodiment, the rotational axis is at a central position between the upper side of the blade 6 and the lower side of the two U-shaped grooves.

The flywheel 2 is provided with a dial 21 for displacing the card tab 4 away from the positioning notch 61. The flywheel 2 is rotatably coupled to the seat body 3 through a hole 32 in the seat body 3, and the flywheel 2 is disposed on the back of the seat body 3 The face corresponds to the position of the card piece 4.

The card retaining piece 4 is provided with two latching members adapted to the positioning notches of the blade, and the card retaining members are respectively engaged in their corresponding positioning notches. In this embodiment, the front surface of the card sheet 4 is provided with a first card member and a second card member. The first latching member includes a second projection 42; the second latching member includes: a third projection. The first protrusion 41 may also be disposed on the upper portion of the card sheet 4, and the second protrusion 42 and the first protrusion 41 may be located together in the U-shaped groove of the blade.

The second protrusion 42 corresponds to the first positioning notch 61, and the third protrusion 43 corresponds to the second positioning notch 62; the second protrusion 42 and the third protrusion 43 are arranged side by side, and the first protrusion 41 and the second protrusion 42 are up and down Parallel settings. The first protrusion 41 is slightly smaller than the second protrusion 42, and the second protrusion 42 and the third protrusion 43 are sized to fit the first positioning notch 61 and the second positioning notch 62. One end of the elastic member 5 is crimped onto the first protrusion 41 for engaging the second protrusion 42 and the third protrusion 43 into the first positioning notch 61 and the second positioning notch 62, respectively. And the second protrusion 42 and the third protrusion 43 are engaged in a position close to the bottom of the two positioning notches.

The principle of its use is the same as that of Embodiment 1, and will not be described here.

The preferred embodiment of the invention is only intended to aid in the description of the invention. The preferred embodiment is not to be considered in all detail, and is not intended to limit the invention. Obviously, many modifications and variations are possible in light of the contents of this specification. The embodiments are selected and described in detail to better explain the principles of the present invention and the practical application thereof, so that those skilled in the art can make good use of the present invention. The invention is to be limited only by the scope of the appended claims The above disclosure is only a few specific embodiments of the present application, but the present application is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present application.

Claims

Claim

A utility knife holder, characterized in that it comprises:

Knife body;

a clamping component, the clamping component includes a locking piece, the clamping piece is movably connected to the holder body, and the clamping piece is provided with a locking component adapted to at least two positioning notches on the blade, the The card components are respectively inserted into the positioning gaps.

2. The utility knife holder according to claim 1, wherein the locking piece has a rod shape, and the locking piece is rotationally coupled to the holder body by a shaft.

3. The utility tool holder according to claim 1, wherein the fastening component further comprises: a flywheel, the flywheel is rotatably coupled to the seat body, and the flywheel is disposed on the back of the seat body Position: The flywheel is provided with a dial for displacing the card member from the positioning gap.

The utility tool according to claim 1 or 3, wherein the fastening component further comprises an elastic component, and the elastic component and the latching piece are sequentially coaxially stacked on the front surface of the tool holder body and The position of the blade is adapted.

The utility model as claimed in claim 4 , wherein the positioning notch comprises a first positioning notch and a second positioning notch, and the front surface of the clamping piece is provided with a first clamping part and a second a latching member, the first latching member includes a second protrusion protruding from the latching tab; the second latching member includes a third protrusion protruding from the latching tab; the second protrusion and the second The dimensions of the three protrusions are respectively adapted to the first positioning notch and the second positioning notch.

6. A utility knife holder according to claim 5, wherein a first protrusion is disposed on the upper end of the front surface of the card sheet, and one end of the elastic member is crimped onto the first protrusion.

The utility model as claimed in claim 3 or 5, wherein the back surface of the locking piece is further provided with a fourth protrusion, and the fourth protrusion has a fourth protrusion And a limiting hole for restricting the movement of the fourth protrusion, wherein the fourth protrusion is pressed against the dial of the flywheel through the limiting hole.

8. A utility knife holder, characterized in that it comprises:

Knife body;

a clamping component, the clamping component includes a locking piece, and the locking piece is movably connected to the knife through a shaft The seat body has at least one latching member adapted to the blade, and the rotating shaft center of the latching tab is located at the rear end of the latching member, and the rotating shaft center is disposed in the upper and lower horizontal lines of the blade.

9. The utility knife holder according to claim 8, wherein the rotation axis is disposed in a horizontal line of the upper side of the blade and the bottom edge of the U-shaped groove.

10. A utility knife holder according to claim 8, wherein said rotational axis is disposed at a central position between the upper edge of the blade and the bottom edge of the U-shaped groove.

11. The utility knife base according to claim 8, wherein the fastening component further comprises: a flywheel, the flywheel is rotatably coupled to the seat body, and the flywheel is disposed on the back of the seat body And corresponding to the position of the card slot; the flywheel is provided with a dial for displacing the card member away from the positioning gap.

12. The utility knife holder according to claim 11, wherein the fastening component further comprises an elastic member for engaging the locking tab into the blade positioning notch, wherein the elastic component and the latching tablet are sequentially The shafts are stacked on the front side of the seat body and in a position to accommodate the blade.

13. A utility knife tool, characterized in that it comprises:

Tool holder body: telescopic or folding knife body;

a blade: at least two positioning notches are provided on a side of the blade;

Utility Knife Holder: It further includes:

The seat body: an accommodation space for accommodating the blade;