TWI728437B - Cutting apparatus - Google Patents

Abstract

A cutting apparatus adapted for removing excess materials covering on a surface of a pillar member. The cutting apparatus has a main body, a positioning member disposed along an axial line on the main body, and a cutting member disposed on the main body. The axial line is defined passing through the main body. The cutting member includes a knife spaced apart from the axial line. The knife is movable between a cutting and a retracted position. In the cutting position, the knife is close to the positioning member such that the knife is rotatable around the axial line and along the main body for cutting the excess materials. In the retracted position, the knife is retracted to prevent from interference. When cutting, the main body is a center of rotation for driving the knife to cut excess materials such that a part of the pillar member is exposed.

Description

Cut off the knob

The present invention relates to a knob, in particular to a cutting knob.

Some existing equipment, such as fitness equipment, is first covered with a layer of covering on the surface of at least one component, such as rubber, urethane, foam, etc., for anti-skid, anti-collision or anti-corrosion functions, and then When assembling each component, it is necessary to remove the cover of a column-shaped assembly part of the component to expose the assembly part before it can be connected to other components.

Therefore, the object of the present invention is to provide a cutting knob that facilitates the removal of a covering covering the surface of a pillar.

Therefore, the cutting knob of the present invention is suitable for cutting a covering covering the surface of a pillar. The cutting knob includes a body, a positioning unit, and a cutting unit. Define an axis extending along an axial direction and passing through the body. The positioning unit is arranged on the body along the axis and used for positioning relative to the pillar. The cutting unit is disposed on the body, and includes a cutting knife arranged along a cutting plane perpendicular to the axis and spaced from the axis. The cutting knife can be at a distant position and a close position along the cutting plane relative to the positioning unit. Move between positions, when the knife is at the far position, the knife Along the cutting plane away from the positioning member, when the cutting knife is in the approaching position, the cutting knife approaches the positioning member along the cutting plane, and the cutting knife can rotate with the body around the axis to cut the covering along the cutting plane Things.

The effect of the present invention is that the cutting knife can move between the distant position and the close position relative to the positioning unit along the cutting plane, so that when the cutting knob is positioned relative to the column, the cutting knife Without interference with the cover, the positioning unit is arranged on the body along the axis, so that the body can drive the cutter to rotate around the axis with the positioning unit as the center of rotation, so as to cut the cylinder around the column. Cover so that one end of the column is exposed.

100: Cut off the knob

1: body

11: The first surface

12: second surface

13: Outer peripheral surface

14: Chute

15: Groove end face

2: positioning unit

21: positioning parts

211: Connection

212: Positioning Department

213: limit block

22: leaning piece

221: base surface

222: Leaning Face

23: Bolt

231: Threaded part

232: Head

233: Extension

3: Cutting unit

31: Joystick

311: setting side

312: Operation side

32: Cutter

321: cutting edge

322: tip

33: Elastic part

34: The first stop

35: second stop

36: third stop

600: Drive

700: Handrail

800: pillar

80: end

801: end face

802: Center hole

803: ear

900: Cover

L: axis

D1: Axial

D2: Operation direction

S: cutting plane

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a three-dimensional assembly view of an embodiment of the cutting knob of the present invention installed on an armrest of a treadmill; 2 is a perspective exploded view of the embodiment and a pillar of the armrest and a covering covering the armrest; Figure 3 is a perspective view of the embodiment; Figure 4 is a perspective exploded view of the embodiment; Figure 5 is a bottom view of the embodiment, illustrating the state of a cutter of the embodiment at a remote position; Figure 6 is a bottom view similar to Figure 5, illustrating the state of the cutter at a close position; Figure 7 is a side view of the embodiment; Figure 8 is the embodiment set on the pillar and the cover A cross-sectional view of the object illustrates the state of the embodiment when positioning relative to the column, and the cutter is located at the remote position; Figure 9 is a view of the embodiment disposed on the column and the cover A cross-sectional view illustrating the state of the embodiment when the covering is cut around, when the cutting knife is located between the distant position and the close position; and FIG. 10 is a diagram of the embodiment, the covering, and the pillar A three-dimensional exploded view illustrating the state of the covering after being partially cut off by the embodiment.

Referring to Figures 1, 2 and 3, an embodiment of the cutting knob 100 of the present invention is suitable for cutting a covering 900 covering the surface of a pillar 800. The cutting knob 100 includes a body 1, a positioning unit 2, and a cutting unit 3.

Referring to FIGS. 3 and 4, an axis L extending along an axis D1 and passing through the body 1 is defined. The body 1 includes a first surface 11, a second surface 12 opposite to the first surface 11 along the axis L, and an outer peripheral surface 13 connecting the first surface 11 and the second surface 12.

Referring to Figure 4, Figure 5, Figure 7 and Figure 8, the positioning unit 2 is arranged along the axis L at The body 1 protrudes from the first surface 11 of the body 1. The positioning unit 2 includes a positioning member 21 disposed on the main body 1 along the axis L, an abutting member 22 disposed on the main body 1 and sleeved on the positioning member 21, and a positioning member 22 disposed on the main body 1 along the axis L. The positioning member 21 is screw-locked to the bolt 23 of the main body 1.

The positioning member 21 has a connecting portion 211 connected to the main body 1 and a positioning portion 212 opposite to the connecting portion 211 along the axis L. The abutting member 22 has a base surface 221 adjacent to the main body 1 and an abutting surface 222 opposite to the base surface 221 along the axial direction D1. The abutting surface 222 of the abutting member 22 is spaced apart from the first surface 11 of the body 1 along the axial direction D1. The positioning portion 212 of the positioning member 21 protrudes from the abutting surface 222 along the axis L, and the positioning portion 212 has at least one limiting block 213 protruding radially outward along the axis L. The limiting block 213 abuts against the abutment surface 222 of the abutment member 22 to limit the abutment member 22 along the axial direction D1. The bolt 23 has a threaded portion 231 screwed to the body 1, a head 232 opposite to the threaded portion 231 in the axial direction D1 and located outside the positioning portion 212, and a head 232 that penetrates the positioning member 21 The extension part 233, the head 232 limits the positioning element 21 along the axial direction D1, and the positioning element 21 is rotatable relative to the extension part 233.

In this embodiment, the abutting member 22 is thrust bearing, and the limiting block 213 does not crush the abutting member 22, and the number of limiting blocks 213 is two.

It is worth mentioning that the structure of the positioning unit 2 is not limited to this embodiment, and the positioning unit 2 may also be a positioning pin, etc., which can be used as the main body 1 relative to the pillar. A pivot of 800 rotation is sufficient.

Referring to FIG. 4 and FIG. 7, the cutting unit 3 is disposed on the main body 1. An operation direction D2 perpendicular to the axial direction D1 is defined. In this embodiment, the operation direction D2 is the radial direction of the axis L, but is not limited to this. The cutting unit 3 includes an operating rod 31 movably arranged on the main body 1 along the operating direction D2, a cutting knife 32 connected to the operating rod 31, and a knife 32 arranged on the operating rod 31 and abutting against the main body 1. Elastic piece 33.

The operating rod 31 has a setting end 311 connected to the cutting knife 32, and an operating end 312 opposite to the setting end 311 in the operating direction D2 and protruding from the outer peripheral surface 13. The setting end 311 and the operating end 312 are respectively Located on opposite sides of the axis L.

4, 5 and 7, the cutter 32 extends along a cutting plane S perpendicular to the axis L at the setting end 311, and the cutter 32 is spaced apart from the first surface of the body 1 along the axial direction D1 11, and spaced from the axis L. The cutter 32 is in the shape of a long piece and extends along the operating direction D2, and has a cutting edge 321 extending along the operating direction D2 for cutting, and a tip 322 pointing to the axis L. The cutter 32 can rotate with the body 1 about the axis L to cut the cover 900 along the cutting plane S

The operating rod 31 can be driven by an external force to move the cutter 32 relative to the positioning unit 2 along the operating direction D2 between a distant position (see FIG. 5) and a close position (see FIG. 6). When the cutting knife 32 is at the distant position, the cutting knife 32 is away from the positioning member 21 along the cutting plane S, and when the cutting knife 32 is at the approaching position, the cutting knife 32 approaches the positioning member 21 along the cutting plane S . And when the cutter 32 moves from the distant position to the close position At this time, the tip 322 of the knife 32 is used to penetrate the covering 900.

The elastic member 33 is connected to the operating rod 31 and constantly moves the cutting knife 32 toward the approaching position.

In this embodiment, the body 1 further includes a sliding groove 14 extending along the operating direction D2, and a groove end surface 15 adjacent to the sliding groove 14 and corresponding to the outer peripheral surface 13 along the operating direction D2. The cutting unit 3 also includes a first stopper 34 provided on the operating end 312 of the operating rod 31, a second stopper 35 provided on the setting end 311 of the operating rod 31, and a second stopper 35 provided on the operating rod 31 The third stop 36 between the operating end 312 and the setting end 311 and located in the sliding groove 14. The elastic member 33 is a coil spring, and is wound around the operating rod 31 and located between the main body 1 and the operating end 312, and two ends of the elastic member 33 abut against the outer peripheral surface 13 and the outer peripheral surface of the main body 1, respectively. The first stop 34. When the cutting knife 32 moves to the far position, the first stopper 34 approaches the body 1 along the positive direction of the operation direction (the direction shown by the arrow a in FIG. 5) and compresses the elastic member 33.

The second stop 35 and the third stop 36 cooperate with the body 1 to limit the stroke of the operating rod 31 in the operating direction D2. When the cutter 32 moves to the close position, the second stop The block 35 abuts against the outer peripheral surface 13 of the body 1 along the reverse of the operating direction D2 (the direction shown by the arrow b in FIG. 6), and the third stopper 36 is reversed along the operating direction D2 Lean against the groove end surface 15 of the body 1 to prevent the cutter 32 from hitting the positioning unit 2. In other embodiments, one of the second stopper 35 and the third stopper 36 can also be omitted.

1 and 2, in this embodiment, the column 800 is a connecting seat of an armrest 700 of a treadmill, the connecting seat is in the shape of a column, and the covering 900 is glue covering the surface of the armrest 700. In the process of manufacturing and assembling the armrest 700, the surface of the armrest 700 will be glued through the foam glue process. Therefore, the pillar 800 needs to be degummed before the other parts of the armrest 700 are assembled. In addition, the pillar 800 includes an end portion 80 having an end surface 801 and a central hole 802 passing through the end surface 801. The cutting knob 100 of the present invention can be used to remove glue, but the pillar 800 and the cover 900 to which the cutting knob 100 is applicable are not limited to this.

5, when in use, the operating end 312 of the operating rod 31 of the cutting knob 100 is pushed in the operating direction D2 toward the direction of the body 1, so that the cutting knife 32 moves from the close position to the far position , And deform the elastic member 33. Next, referring to FIG. 8, the cutter 32 is held at the remote position, and the positioning portion 212 of the positioning member 21 is inserted into the central hole 802 from the end 80 of the pillar 800 along the axial direction D1. And make the abutment surface 222 of the abutment member 22 abut against the end surface 801 of the pillar 800 along the axial direction D1. At this time, the cutter 32 is located outside the cover 900, and the positioning member 21 and the abutting surface 222 of the abutting member 22 are fixed relative to the end 80.

Referring to Figures 8, 9 and 10, when the positioning unit 2 of the cutting knob 100 is positioned relative to the column 800, the external force applied to the operating rod 31 is removed. At this time, the elastic member 33 releases potential energy , The operating rod 31 drives the cutting knife 32 along the operating The direction D2 moves from the distant position to the close position, and the cutting knife 32 penetrates the covering 900 by the tip 322 (see FIG. 9, in FIG. 9 because the cutting knife 32 has reached the covering 900 and the covering 900). Pillar 800, therefore, did not fully reach the close position). Then, the main body 1 is rotated around the axis L with the positioning portion 212 of the positioning member 21 as a fulcrum, and the cutting unit 3 is driven to rotate around the axis L, so that the cutter 32 cuts the axis along the cutting plane S. Covering 900. Wherein, when the main body 1 rotates, the abutting surface 222 of the positioning unit 2 and the positioning member 21 are fixed relative to the end 80 of the column 800, and the base surface 221 of the abutting member 22 follows The body 1 rotates. When the main body 1 rotates more than one revolution around the axis L, the cutting knob 100 is detached from the pillar 800, and the part of the cover 900 located at the end 80 of the pillar 800 is cut off in a ring shape. , So that the end 80 of the pillar 800 is exposed (see FIG. 10).

1 and 5, it is worth mentioning that, in this embodiment, the limiting blocks 213 of the positioning member 21 and the shape of the two ears 803 of the central hole 802 of the pillar 800 Correspondingly, when the main body 1 rotates, the positioning member 21 can be clamped in the central hole 802. Referring to Fig. 9, the surface of the extension 233 of the bolt 23 is smooth, so that the body 1 and the positioning member 21 can rotate relative to each other. In addition, the extension 233 of the bolt 23 can also be sleeved or sleeved. Bearings to reduce friction during rotation. In addition, the abutment member 22 is a thrust bearing, so it can still rotate when the axial direction D1 is under force, so as to prevent the cutting knob from being pressed against the axial direction D1 and cutting the pin when the friction force is too large and difficult to rotate.

In this embodiment, the cutting knob 100 is driven by a driving device 600 (see FIG. 1) to cut the covering 900, but the cutting knob 100 can also be manually cut.

In summary, the cutting knob 100 of the present invention is arranged on the main body 1 along the axis L by the positioning unit 2 so that the main body 1 can rotate around the axis L with the positioning unit 2 as the center of rotation, and drive the cutter 32 rotates around the axis L to cut the covering 900. In addition, the cutter 32 can move between the distant position and the close position relative to the positioning unit 2 along the cutting plane S, so that the cutting knob 100 is relatively When the pillar 800 is positioned, the cutting knife 32 will not interfere with the cover 900, and after positioning, it can move to the close position so as to rotate along the cutting plane S in a ring shape with the body 1 Cutting the cover 900 can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

100: Cut off the knob

1: body

12: second surface

13: Outer peripheral surface

2: positioning unit

21: positioning parts

212: Positioning Department

22: leaning piece

222: Leaning Face

23: Bolt

232: Head

3: Cutting unit

31: Joystick

33: Elastic part

L: axis

D1: Axial

D2: Operation direction

Claims (9)

A cutting knob suitable for cutting a covering covering the surface of a pillar. The cutting knob comprises: a body defining an axis extending in an axial direction and passing through the body; a positioning unit arranged along the axis On the main body and used for positioning relative to the column; and a cutting unit, arranged on the main body, and including a cutting knife arranged along a cutting plane perpendicular to the axis and spaced apart from the axis, the cutting The knife can move between a distant position and a close position along the cutting plane relative to the positioning unit. When the cutting knife is in the distant position, the cutting knife is away from the positioning unit along the cutting plane, and when the cutting knife is in the cutting plane. When approaching the position, the cutting knife approaches the positioning unit along the cutting plane, the cutting knife can rotate with the body around the axis to cut the covering along the cutting plane, and the cutting knife has a tip pointing to the axis. When the cutting knife moves from the distant position to the close position, the tip is used to pierce the covering. The cutting knob according to claim 1, wherein an operating direction parallel to the cutting plane is defined, the cutting unit further includes an operating rod movably arranged on the body and connected to the cutting knife along the operating direction, the operating The rod can be driven by an external force to move the cutter relative to the positioning unit along the operating direction between the distant position and the close position. The cutting knob according to claim 2, wherein the cutting unit further includes an elastic member disposed on the operating rod and abutting against the body, the elastic member is connected to the operating rod and constantly moves the cutting knife toward the close position . The cutting knob according to claim 3, wherein the body includes a first table Surface, a second surface opposite to the first surface along the axis, and an outer peripheral surface connecting the first surface and the second surface, the operating rod of the cutting unit has a setting end connected to the cutting knife, And an operating end opposite to the setting end along the operating direction and protruding from the outer peripheral surface, the setting end and the operating end are respectively located on two opposite sides of the axis. The cutting knob according to claim 1, wherein the body includes a first surface and a second surface opposite to the first surface along the axis, the positioning unit protrudes from the first surface of the body, and The cutter of the cutting unit is spaced apart from the first surface of the body in the axial direction. The cutting knob according to claim 5, wherein the positioning unit has an abutting surface spaced apart from the first surface of the body along the axial direction, and a positioning portion protruding from the abutting surface along the axis, the The positioning portion is used to be inserted into the column, the abutting surface is used to abut one end surface of the column, and the body can rotate around the axis relative to the abutting surface and the positioning portion. The cutting knob according to claim 6, wherein the positioning unit includes a positioning member disposed on the main body along the axis, and an abutting member disposed on the main body and sleeved on the positioning member, the positioning member having The positioning portion, and a connecting portion opposite to the positioning portion along the axis and connected to the body, the abutment member has the abutment surface, and a portion opposite to the abutment surface in the axial direction and adjacent to the body The base surface, the thrust bearing of the abutment piece. The cutting knob according to claim 7, wherein the positioning portion of the positioning member of the positioning unit has at least one limit block protruding radially outward along the axis, and the limit block limits the position along the axial direction The abutment piece. The cutting knob according to claim 7, wherein the positioning unit further includes a A bolt passing through the positioning member along the axis and screwed to the body, the bolt having a threaded portion screwed to the body, and a head opposite to the threaded portion in the axial direction and located outside the positioning portion , And an extension part penetrating the positioning element, the head restricts the positioning element along the axial direction, and the positioning element can rotate relative to the extension part.

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