TW201336645A - Tilting protective shell for utility knife - Google Patents

Abstract

The present invention provides a tilting protective shell for utility knife, which comprises: a first shell body with an accommodating space; a second shell body combined with the front section of the first shell body through a rotating assembly; a third shell body combined with the rear section of the first shell body through a rotating pivot; and, a linking assembly configured between the second shell body and the third shell body to enable the linking relation between the two. By loosening the knob of the rotating assembly, the third shell body may be automatically tilted to be opened with the rotating pivot as a center point and the second shell body may also be pushed to be opened, so as to open the accommodating space of the first shell body for the convenience of the user to pick up the received blade cartridge or replace the blade.

Description

Utility knife rotary shell

This case is related to the utility knife. In more detail, it is a rotary shackle for the utility model that can accommodate the blade.

The user of the utility knife needs to have multiple blades for replacement, so the designer of the utility knife has proposed a new concept of storing multiple blades in the plastic casing of the utility knife. This new concept is to increase the plastic knife protection of the utility knife. The internal space of the shell is a means to accommodate a plurality of blades or a blade that accommodates a plurality of blades. However, such a utility knife having a storage blade function usually needs to disassemble and restore the protective cover when the stored blade or blade is taken, which becomes troublesome in the operation of replacing the blade, and is disassembled and restored. Operation, it is necessary to take into account the level of security protection.

Based on the utility model with the function of accommodating the blade or the knife, it has the convenience of storage, carrying and use. Therefore, the creator of this case focused on the new design of the shell of this type of knife.

The purpose of the present invention is to provide a rotary knife-type casing for a utility knife, which has a function for the user to conveniently access the blade or the blade stored in the utility knife casing and to facilitate the replacement of the blade.

The purpose of the present invention is to provide a rotary knife-type casing for a utility knife, which is provided for the user to gently rotate a knob provided on the casing, and the casing is automatically rotated and opened, and the operation is simple and rapid. After use, the shell can be restored by gently pushing the shell back and tightening the knob.

The utility model for achieving the above object comprises: a first housing having an accommodating space; and a second housing coupled to the front portion of the first housing through a rotating assembly, the rotating assembly comprising a knob, The knob controls the second housing to be in a tight position or a floating position; the tightening position defines that the second housing is tightly positioned on the first housing, and the floating position defines the second housing Rotating with the rotating assembly as a center point; a third housing that is coupled to the rear portion of the first housing through a rotating pivot, the third housing is rotated by the pivot point; a related component The second housing and the third housing are respectively disposed at corresponding contact positions and corresponding to each other; and when the second housing is in the tight position, the second housing is pressed to the third through the related component a casing; when the third casing rotates around the rotating pivot, the third casing pushes the second casing through the connecting component.

In order to facilitate the description of the central idea of the present invention in the column of the above novel content, it is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above. In the following description, like elements are denoted by the same reference numerals.

As shown in the first figure and the second figure, the appearance of a utility knife is described. The protective knife casing comprises a first casing 10, a second casing 20, a third casing 30, and a Between the two housings 20 and the third housing 30, a related component 25 is created in a linked relationship.

The first housing 10 is a foundation, and has an accommodating space 17 therein. The front end of the accommodating space 17 is fixed with a scabbard 12, and a blade 11 can be disposed in the scabbard 12; The inside of the rear end accommodates a knife 13.

The second housing 20 is coupled to the front portion of the first housing 10 through a rotating assembly 40. A compression spring 16 is positioned in the first housing 10, and a resilient end thereof abuts against the second housing 20. Bottom surface. The rotating assembly 40 includes a knob 41 that controls the second housing 20 to be in a tight position or a floating position; the tightening position defines that the second housing 20 is tightly positioned on the second housing 20 A housing 10 defining the second housing 20 for rotation of the rotating assembly 40 as a point of focus.

The third housing 30 is coupled to the rear portion of the first housing 10 through a rotating pivot 50, and the third housing 30 is rotated about the pivot point 50. A torsion spring 51 is sleeved on the outside of the rotating pivot 50, and the two spring legs respectively touch a fixed portion of the first housing 10 and the third housing 30.

The second assembly 20 is disposed at a corresponding contact position of the second housing 20 and the third housing 30 and corresponding to each other; and when the second housing 20 is in the tight position, the second housing 20 is The third housing 30 is pressed through the connection assembly 25; when the second housing 20 is in the floating position, the third housing 30 can be rotated about the rotation pivot 50, and the third housing 30 is rotated. The second housing 20 is synchronously pushed through the associated assembly 25.

As shown in the first and second figures, the connection assembly 25 includes: an extension portion 21 disposed on the second housing 20, and a receiving portion 31 disposed on the third housing 30 for receiving the extension portion 21, A contact member 32 disposed at the receiving portion 31 and a pusher member 22 disposed at the bottom of the extending portion 21. When the second housing 20 is in the above-mentioned tightening position, the second housing 20 presses the contact member 32 through the extending portion 21, so that the third housing 30 is closed on the first housing 10; The second housing 30 is in a floating position, and the third housing 30 is rotatable about the pivoting pivot 50, and the third housing 30 pushes the pushing member 22 through the contact member 32, thereby pushing The second housing 20 is turned.

2, 3, and 4; the rotating assembly 40 includes: a knob 41 having a bottom portion 42 having a joint portion 42 having a hollow cylindrical configuration and having an external thread on the surface thereof. The core hole has an internal thread.

An axial portion 43 is disposed in the first housing 10 and is also a hollow cylindrical structure. The core hole has an internal thread for receiving and screwing with the coupling portion 42 of the knob 40.

A knob positioning member 44 is coupled to the joint portion 42 of the knob 41 through the counterbore 15 at the bottom of the first housing 10. In the embodiment of the present invention, the knob positioning member 44 is a screw that is locked to the core hole of the knob 41. The knob positioning member 44 maintains the rotational freedom of the knob 41 in the axial center portion 43, but prevents the knob 41 from being disengaged from the axial center portion 43. The mechanism for preventing the knob 41 from being disengaged from the axial portion 43 is that the knob 41 is rotated and moved up to an extreme position along the internal thread of the axial portion 43 to the head of the knob positioning member 44. The 441 touches the flat portion 151 of the counterbore 15 to restrict the re-movement of the knob 41.

Hereinafter, the realization of the spin-on function of the sheath of the present invention will be described in conjunction with the above-described respective members and combinations thereof.

As shown in the first, third and fifth figures, the knob 41 of the rotary assembly is locked to the shaft portion 43. The second housing 20 is pressed and pressed by the knob 41 to be positioned at the first portion. A housing 10, the second housing 20 is in the above-mentioned tight position. The second housing 20 presses the contact 32 of the third housing 30 through the extending portion 21, so that the third housing 30 is tightly positioned on the first housing 10. The first housing 10, the second housing 20, and the third housing 30 are in a combined configuration of closed positioning to facilitate the user to operate the blade 11.

As shown in the fourth and sixth and seventh figures, the knob 41 of the rotary assembly is described as being loosened and moved upward along the spiral of the internal thread of the axial portion 43 to release the second casing. The pressing force of the body 20 releases the compression spring 16 between the first housing 10 and the second housing 20, pushing the second housing 20 upward to make the first housing 10 Loosing, in the above-mentioned floating position, releases the pressing force of the extension portion 21 to the contact member 32 of the third casing 30. The torsion spring 51 located between the first housing 10 and the third housing 30 releases energy, and the third housing 30 is biased to make the third housing 30 centered on the rotating pivot 50. Point, rotate in the direction of the thrust. At the beginning of the rotation stroke, the contact member 32 forms a horizontal thrust on the pushing member 22 of the second housing 20 in the floating position, and the thrust causes the second housing 20 to be centered on the rotating assembly 40. , rotate in the direction of the thrust. As described in the seventh diagram, the second housing 20 and the third housing 30 are automatically rotated to open an operating space sufficient to take the blade from the first housing 10 and to remove the blade 11.

Referring to the sixth and seventh figures, the second housing 20 and the third housing 30 are combined, and the user applies the thrust of the third housing 30 opposite to the automatic rotation direction. The third housing 30 is rotated in the reverse rotation direction, and the extension portion 21 of the second housing 20 enters the receiving portion 31 of the third housing 30, and the edge 33 of the receiving portion 31 pushes the extension The edge 23 of the portion 21, the third housing 30 applies a thrust to the second housing 20, causing the second housing 20 to rotate in the reverse rotation direction, returning to the second housing 20 and the first After the three housings 30, the knob 41 is tightened, and the knob 41 is pressed to position the second housing 20. The second housing 20 and the third housing 30 are pressed into the first housing 10 as described above. on.

In summary, this case provides an automatic rotary shell for the utility knife that has the function of accommodating the blade or the knife, so that the user can easily access the knife or replace the blade. The mechanism for automatically rotating the sheath is to properly loosen the knob 41, which is simple, convenient and fast. After use, push the shell back and tighten the knob 41.

Although the present case is illustrated by a preferred embodiment, those skilled in the art can make various forms of changes without departing from the spirit and scope of the present invention. The above embodiments are only used to illustrate the present case and are not intended to limit the scope of the present invention. All kinds of modifications or changes that are not in violation of the spirit of the case are the scope of patent application in this case.

10. . . First housing

11. . . blade

12. . . scabbard

13. . . Knife

15. . . Spigot

151. . . Plane department

16. . . compressed spring

17. . . Housing space

20. . . Second housing

twenty one. . . Extension

twenty two. . . Pusher

twenty three. . . edge

25. . . Related components

30. . . Third housing

31. . . Receiving department

32. . . Contact

33. . . edge

40. . . Rotating assembly

41. . . Knob

42. . . combination

43. . . Axis

44. . . Knob positioning piece

441. . . head

50. . . Rotating pivot

51. . . Torsion spring

The first picture shows the three-dimensional appearance of the utility knife with the rotary shell of the present case.

The second figure is an exploded perspective view of the rotary shell of the present case.

The third picture is a 3-3 cross-sectional view in the first figure.

The fourth figure depicts a cross-sectional view of the opening operation along with the third figure.

The fifth picture is a plan view of a beautiful knife with a rotary shell of the present case.

The sixth figure depicts a plan view of one of the spin motions along with the fifth figure.

The seventh drawing depicts a plan view of the second rotation action along the sixth drawing.

10. . . First housing

11. . . blade

20. . . Second housing

twenty one. . . Extension

30. . . Third housing

31. . . Receiving department

40. . . Rotating assembly

41. . . Knob

50. . . Rotating pivot

Claims (7)

A rotary turret for a utility knife, comprising: a first housing having an accommodating space; and a second housing coupled to the front portion of the first housing through a rotating assembly, the rotating assembly comprising a knob The knob controls the second housing to be in a tight position or a floating position; the tightening position defines that the second housing is tightly positioned on the first housing, and the floating position defines the second The housing is rotatable about the rotating assembly; the third housing is coupled to the rear portion of the first housing through a rotating pivot, and the third housing is rotated by the pivot point; The second assembly and the third housing are respectively disposed at corresponding contact positions and corresponding to each other; and when the second housing is in the tight position, the second housing is pressed by the related assembly The third housing; when the second housing is in the floating position, the third housing can rotate at a center point of the rotating pivot, and the third housing can push the second housing through the connecting component. The rotary turret of the utility knife according to claim 1, further comprising a compression spring positioned in the first housing, the elastic end of which abuts against the bottom surface of the second housing. The rotary shackle of the utility knife according to claim 1, further comprising a torsion spring sleeved on the outside of the rotating pivot, the two spring legs respectively contacting the first housing and the first A fixed part of the three housings. The rotary turret of the utility knife according to the first aspect of the invention, wherein the knob is penetrated through the second casing to be screwed to the axial center of the first casing. The rotary turret of the utility knife according to claim 4, wherein the rotary assembly further comprises a knob positioning member that passes through the counterbore of the first housing and is threadedly engaged with the knob. The rotary turret of the utility knife according to claim 5, further comprising a structure for preventing the knob from being separated from the shaft center, the structure comprising the head of the knob positioning member and the counterbore hole Flat section. The rotary shackle of the utility knife according to claim 1, wherein the related component comprises: an extension portion disposed on the second housing, and the third housing is disposed to receive the extension a receiving portion, a contact member disposed at the receiving portion, and a pusher member disposed at a bottom portion of the extending portion; when the second housing is in the tightening position, the second housing presses the contact portion through the extending portion When the third housing rotates around the rotation pivot, the third housing pushes the pusher through the contact member, thereby pushing the second housing.