TWM550187U - Trimming device structure with retractable tool - Google Patents

Description

Trimming structure of retractable blade

This creation relates to the technical field of a hand tool, and in particular to the trimmer structure of a retractable blade.

The machining position of a workpiece, such as the edge of a round hole or the edge of an object, often produces burrs. Traditionally, burrs have been used to remove burrs. However, for round holes, the size, length and direction of the boring tool can lead to inconvenient operation and poor burr removal.

A trimming knife structure is known in which a body is mated to a blade. The user can hold the seat and operate the blade in a scraping manner to remove the burrs from the edge of the workpiece. However, this type of trimming knife is not suitable for the trimming of the edge of the round hole because the blade does not easily protrude into the inside of the round hole and the angle inside the round hole is not good.

Taiwan Patent No. M303078 discloses a structural improvement of a doctor blade to which a cutter body is attached at one end of a rod body. The blade body has a curved bar shape and one side is a blade portion. Since the body is curved and slender, the body can properly remove the burrs, whether it is the edge of the work or the edge of the hole.

However, when the blade of the patent is not in use, the body still protrudes from the bar and cannot be directly stored. Therefore, if the user puts the scraper on the body, it is obviously dangerous because of the protruding cutter body. The solution can be taken out and stored separately, but in this way, the inconvenience of storage is caused.

The present invention provides a trimmer structure for a retractable blade, which has the function of being able to hide the blade for convenient carrying and high safety.

In order to achieve the above-mentioned purpose and effect, the trimmer disclosed in the present invention is configured such that a scraper assembly is disposed inside a body, and a first limiting member and a second limiting member are annularly disposed in the axial direction of the body. . The blade assembly is a blade holder coupled to a blade having a protruding portion on the surface of the blade and located between the first limiting member and the second limiting member. The movement of the holder relative to the first limiting member and the second limiting member can move the holder without disengaging from the body, and the movement of the holder can cause the blade to shrink and conceal inside the body.

The following is a description of the preferred embodiments of the present invention, and is described in detail with reference to the drawings.

Referring to Figures 1 and 2, one of the preferred embodiments of the authoring edger is disclosed. The trimmer is a scraper assembly 30 disposed in the axial direction of a body 10. The blade assembly 30 is capable of generating a movable displacement relative to the body 10 after being forced, thereby causing one end of the blade assembly 30 to extend out of the body 10 or to be hidden inside the body 10.

Referring to FIG. 3, the body 10 includes a first component 12 and a second component 14. The first component 12 can be a rod-shaped member, and the axially inner portion of the first component 12 has a blade movable space 16. One end of the blade movable space 16 is an open end, and one side of the blade movable space 16 has a long opening 18. Further, the axially inner portion of the second member 14 has a housing space 20. The first component 12 has a first annular groove 22 and a second annular groove 24 in the axial direction. The first annular groove 22 is separated from the second annular groove 24, and a portion of the first annular groove 22 and the second annular groove 24 traverses the long opening 18.

The doctor assembly 30 includes a seat 32 and a blade 34. The blade 34 has a curved curvature and is detachably mounted at one end of the holder 32. The surface of the holder 32 has a stopper 36 that protrudes outwardly, and one end of the stopper 36 has a pushing block 38.

Referring to FIGS. 3 and 4, the blade assembly 30 is received in the blade movable space 16 of the first component 12 of the body 10. The blocking portion 36 is located in the long opening 18, and the pushing block 38 is opposite to the outer surface of the first member 12. A first limiting member 40 is used for looping in the first annular groove 22. A second limiting member 42 is used for looping the second annular groove 24. Thus, the blocking portion 36 of the scraper assembly 30 is located between the first limiting member 40 and the second limiting member 42.

Referring to FIGS. 5 and 6, the second limiting member 42 has a positioning protrusion 44. The second limiting member 42 of the embodiment is a metal strip, so the positioning convex portion 44 can be formed by the bending angle of the metal strip. The second annular groove 24 has a through hole 46 that can communicate with the blade movable space 16 through the first member 12. The side surface of the holder 32 has a positioning recess 48.

The second limiting member 42 is mounted on the second annular groove 24, and the positioning convex portion 44 passes through the through hole 46 and extends into the blade movable space 16. The doctor blade assembly 30 is mounted to the blade movable space 16 which is opposite to and engages the positioning projection 44 as the blade assembly 30 is displaced.

According to the structure and combination of the components of the present embodiment, referring to Fig. 7, when the doctor blade assembly 30 is in use, the blade 32 can extend out of the body 10 and protrude into the interior of a workpiece 50 to remove the burrs from the edges. It will be appreciated that the blade 32 is machined to remove burrs from the surface or edges of the workpiece 60.

Next, another blade 35 can be placed inside the storage space 20. The blade 35 can be an unused spare or a used waste.

Referring to FIG. 2 again, when the user pushes the blade holder 30 to hide the blade 32 into the body 10, and the user places the edger in a pocket, a pocket or a bag, The blade 32 does not pierce the bag and injures the user (carrier), so the creation has high safety and is convenient to carry.

Referring to FIG. 8 , another embodiment of the present invention selects two latches as a first limiting member 61 and a second limiting member 62 . The first limiting element 61 and the second limiting element 62 of the latch type are disposed on the body 10 and opposite to the long opening 18 . The blade assembly 30 is mounted in the blade movable space 16 , the blocking portion 36 passes through the long opening 18 , and the blocking portion 36 is located between the first limiting member 61 and the second limiting member 62 of the latch type. . Thus, the scraper assembly 30 is displaced, and the blocking portion 36 can respectively contact the first limiting member 61 and the second limiting member 62, so that the scraper assembly 30 does not disengage from the body 10.

Referring to FIG. 9, the present invention can be configured with a positioning component 63 in place of the positioning protrusion (not shown) disclosed in the previous embodiment. The positioning assembly 63 includes a column member 64 and a spring 65 in combination with the body 10, and a portion of the column member 64 protrudes inside the body 10. Further, the positioning assembly 63 includes a threaded member 66 that is locked to the body 10 and has one end that abuts the spring 65. As such, the displacement of the seat 32 allows the locating pocket 48 to engage the post 64 of the locating assembly 63 such that the squeegee assembly 30 is formed into a locating shape. The column member 64 described above can be replaced with steel balls.

According to the above, the first limiting element 40 of the ring-bundle type and the first limiting element 61 of the pin type can be alternatively disposed on the body 10; similarly, the second limiting element of the ring-beam type The first limiting element 62 of the latch type 42 and the latch type can be alternatively disposed on the body 10.

The above is a preferred embodiment and a design of the present invention, but the preferred embodiments and the design drawings are merely illustrative and are not intended to limit the scope of the present invention. The scope of the rights covered by the contents of the "Scope of Application for Patent Application" is not within the scope of this creation and is the scope of the applicant's rights.

10‧‧‧ Ontology
12‧‧‧ first part
14‧‧‧Second parts
16‧‧‧Scraper activity space
18‧‧‧Long opening
20‧‧‧Storage space
22‧‧‧First ring groove
24‧‧‧second ring groove
30‧‧‧ scraper assembly
32‧‧‧Knife holder
34, 35‧‧‧ Blades
36‧‧ ‧ blocking
38‧‧‧ pushed block
40‧‧‧First limiter
42‧‧‧second limiter
44‧‧‧ positioning convex
46‧‧‧Perforation
48‧‧‧Locating pockets
50‧‧‧ positioning pocket
61‧‧‧First limit element
62‧‧‧Second limit element
63‧‧‧ Positioning components
64‧‧‧column pieces
65‧‧‧ Spring
66‧‧‧ Screw lock components

Fig. 1 is an external view of the blade protruding body of the present invention. Fig. 2 is an external view of the blade of the present invention hidden in the body. Figure 3 is an exploded view of the creation. Figure 4 is a schematic diagram of the combined cross-sectional structure of the present creation. Figure 5 is an exploded view of some of the components of this creation. Fig. 6 is a schematic view showing the state of the card holder of the original holder and the second limiting member. Figure 7 is a schematic diagram of the state of use of the present creation. Figure 8 is a schematic view showing the structure of another embodiment of the present creation. Figure 9 is a schematic diagram of the structure of the creation configuration positioning component.

10‧‧‧ Ontology

12‧‧‧ first part

14‧‧‧Second parts

16‧‧‧Scraper activity space

18‧‧‧Long opening

20‧‧‧Storage space

22‧‧‧First ring groove

24‧‧‧second ring groove

30‧‧‧ scraper assembly

32‧‧‧Tool holder

34‧‧‧Knife

36‧‧ ‧ blocking

38‧‧‧ pushed block

40‧‧‧First limiter

42‧‧‧second limiter

Claims (12)

A trimmer structure of a retractable knife member, comprising: a body; a first limiting member disposed on the body; a second limiting member disposed on the body and spaced apart from the first limit a scraper assembly, wherein a blade holder is coupled to a blade, the blade assembly is movably mounted on the body, the blade seat surface has a protruding portion and is located at the first limiting member and the second limit Between the pieces, the block is movable relative to the first stop and the second stop to move the seat away from the body, and the movement of the seat can cause the blade to shrink and conceal inside the body . The edger structure of the retractable blade according to the first aspect of the invention, wherein the axial direction of the body has a blade movable space, and a side of the movable space of the blade has a long opening, the first limiting piece and The second limiting member is in the axial direction of the body and opposite to the long opening, the blade assembly is mounted in the blade movable space, the blocking portion passes through the long opening, and is located in the first limiting member And between the second limit members. The edger structure of the retractable blade according to claim 1 or 2, wherein the surface of the body has a first ring groove, and the first limiting member is mounted on the first ring groove. The edger structure of the retractable blade according to claim 1 or 2, wherein the surface of the body has a second ring groove, and the second limiting member is mounted on the second ring groove. The trimmer structure of the retractable blade according to the fourth aspect of the invention, wherein the side of the seat has a positioning recess, the second limiting member has a positioning convex portion, and the second annular groove has A second limiting member is mounted on the second annular groove, and the positioning convex portion passes through the through hole. The positioning of the seat can combine the positioning concave portion with the positioning convex portion to form the positioning portion of the scraper assembly. The trimmer structure of the retractable blade according to claim 5, wherein the second limiting member is a metal strip, and the positioning convex portion is formed by a bending angle of the metal strip. The trimming knife structure of the retractable blade according to claim 1, wherein the body comprises a first component and a second component, the axial component of the second component has a receiving space, the second component A component is mounted at one end of the first component. The edger structure of the retractable blade according to the first aspect of the invention, wherein the axial direction of the body has a blade movable space, and a side of the movable space of the blade has a long opening, the first limiting piece and The second limiting member is disposed on the body and opposite to the long opening, the blade assembly is mounted in the blade movable space, the blocking portion passes through the long opening, and is located in the first limiting member and the first Between the two limit pieces. The trimmer structure of the retractable blade according to claim 1 or 8, wherein the first limiting member is a latch. The trimmer structure of the retractable blade according to claim 1 or 8, wherein the first limiting member is a latch. The trimmer structure of the retractable blade according to claim 1, further comprising a positioning component, and a positioning recess on one side of the tool holder, wherein the positioning component is mounted on the body, the knife seat The positioning allows the positioning pocket to be coupled to the positioning assembly such that the doctor blade assembly is positioned. The trimmer structure of the retractable blade according to claim 11, wherein the positioning component comprises a combination of a post and a spring mounted on the body, and a part of the post protrudes Inside the body, the positioning assembly further includes a screw-locking element that is locked to the body and has an end that abuts the spring.