TWI648139B - Multifunctional wire cutter structure improvement - Google Patents

Abstract

The utility model relates to a structure improvement of a multifunctional wire cutter, comprising a first and a second tong body, a third tong body, a pivotal reaming unit, a linkage unit, an internal thread hexagon socket cover shell and a spring; The first and second caliper bodies and the third caliper body are pivotally connected through the pivotal reamer unit, and are used for shearing the pipeline to make the outer port mouth circumferentially sheared to maintain the line mouth flatness and reduce the shearing force, which is beneficial to the shifting Accurate adjustment of the wire brake line, the pivoting reaming unit is used for reaming of the pipe sleeve; the spring is assembled between the first and second pliers bodies and the spring has a receiving groove, the receiving groove can be placed in the tail end The sleeve is clamped and positioned by the first and second calipers, and the second caliper body is provided with a quick-release convex portion corresponding to the linkage unit, and is coupled with the first caliper body to be detachable and fastened. A variety of maintenance operations can be accomplished through the present invention.

Description

Multifunctional wire cutter structure improvement

The invention relates to a multifunctional wire cutter, which has a trimming line (brake line), a shearing brake line outer tube, a shearing shifting outer tube and keeping the outer tube mouth flat and reducing the shearing force, disassembling or assembling the chain quick buckle and expanding Multi-purpose hand tools such as holes and clip tail sleeves, clamp brake line outer sleeves, etc.

Press, the brake line on the bicycle and the casing on the bicycle will have different lengths depending on the size and type of the bicycle. Generally, the wire cutter will be used to cut the brake wire and the outer line of the brake wire on the bicycle. Adjust to the appropriate length. The advantages and disadvantages of commercially available wire cutters are described below.

For example, the Republic of China new patent No. M553683 has a wire cutter structure with disassembly and quick release function. The case is mainly applied to the hand tool for cutting the brake line and the quick release function. The lack of this case has four points as follows: A) The front end 14 (Fig. 1 of the case) shall be stamped to a thickness less than 2 m/m and then trimmed and then front end 14 and 16 stamped to the isocenter plane. This design is not a single plane grinding plane, because the front end 14 has a bend It is impossible to grind with a normal tool unilateral plane, so the grinding cost will increase relatively. (B) It is impossible to conventionally stack and compress the flattening heat treatment. Because the design has more than two bends, it is impossible to stack and press the flattening heat treatment. Only the local high-frequency heat treatment of the cutting edge can cause the hardness of other parts to be insufficient, and the high-frequency heat treatment The cost is higher than that of the conventional stack pressing and flattening heat treatment. (C) The cutting angle of the cutting edge 15 is too close to the right side and the outer side, so that the opening degree of the lower end 16 grip is too large to hold the outer tube of the shearing brake wire (see Fig. 3, Fig. 4, Fig. 11), so the blade The mouth design has the ability to cut off the outer tube of the car. Can do the trimming function. (D) The thickness of the plate body of the tongs with the ability to cut the outer line of the brake line must be 3.5 mm or more. The hardness of the tong body should be more than HRC 48 degrees (Loll hardness). If the thickness is more than 3.5 mm, more At the bending and flattening and stacking and pressing flattening heat treatment, the forming difficulty is extremely high. Therefore, according to the illustration, the outer capacity of the brake line is small and the manufacturing cost is high.

For example, the Republic of China new patent No. M459957, a multi-purpose pliers with a trimming and crimping tail sleeve, which mainly has two main functions of trimming and crimping tail sleeves. The outer line of the brake line needs to be additionally prepared with a cutting hand tool, and the structure of the case needs to assemble the left and right cover bodies in addition to the left rod body and the right rod body, and is combined through a plurality of assemblies to cause multiple Part cost and production assembly are less convenient, resulting in higher manufacturing costs.

For example, the Republic of China new patent No. M442910, the structure of the wire cutter is improved. The case is characterized in that the brake wire and the outer line of the brake wire can be cut, and the outer tube of the brake wire is flattened after being cut, and can be inserted through a lock. The casing is reamed to penetrate the brake wire into the casing; however, for the bicyclist, it is inevitable that there will be an abnormal situation such as a chain or a chain when going out. In this case, a quick buckle must be prepared. Hand tools (such as the M553683 tool), but this can cause problems for the rider. The same problem also exists in the Republic of China new patents Nos. M288230, M517675, M474291 and M427723.

In addition, the biggest disadvantage of the wire cutters in the above cases is that when the brake wire is cut, the brake wire and the outer pipe sleeve are deformed, which makes the maintenance work quite difficult, and when the brake wire or the outer pipe sleeve is deformed, Causes a decline in maneuverability and other disadvantages for the Cavaliers.

The main object of the present invention is to provide a multi-functional wire cutter structure improvement, and the structure of the invention has both a trimming line, a shearing brake outer tube, a shifting line outer tube, and a clip tail. Various functions such as sleeve, clip brake outer sleeve, assembled quick buckle chain, and reaming can achieve various maintenance and installation operations through the invention, and are more convenient to carry.

Another object of the present invention is to provide a multi-functional wire cutter structure improvement, which can maintain the flatness of the pipeline port section and reduce the shear force when shearing the pipeline, so that the precise adjustment of the shifting line of the shifting line is beneficial to the subsequent Maintenance and handling of bicycles.

Accordingly, the present invention comprises: a first caliper body, a second caliper body, a third caliper body, a pivotal reaming unit, a linkage unit, an internally threaded hexagon socket housing, and a spring; The first caliper body is provided with a first blade portion, a first pivot hole, a first connecting edge, a first connecting hole, a first clamping edge and a first handle from top to bottom. The second caliper body and the first caliper body are opposite shafts, and the second caliper body is sequentially provided with a second blade portion, a second internal thread pivot hole and a second connecting hole from top to bottom. a linkage unit assembly hole, a second clamping edge, a quick release protrusion and a second handle; the third caliper body is assembled on the second caliper body, and the third caliper body includes an auxiliary a plate pivot hole and an auxiliary slide rail, the third caliper body includes an auxiliary cutting edge, the auxiliary cutting edge and the second blade portion are disposed in the same direction, and a binding bolt is used from the third tong body side Inserting the auxiliary slide rail, the other side is fixed to the second caliper body, so that the third caliper body is interlocked with the second caliper body; the pivotal reaming unit includes a a connector and an internally threaded hexagon socket cover, the pivoting member penetrating the first pivot hole and the second internal thread pivot hole, and the auxiliary plate pivot hole, and then the internal thread hexagon socket cover The linkage unit is formed in a U-shape; the linkage unit has a U-shaped portion, and the linkage unit has a shaft center portion, and the linkage unit is combined in the linkage unit assembly hole through a coupling member; the linkage unit is disposed at the shaft center unit Distinguishing a first side and a second side, the first side and the first interlocking edge are mutually engaged, and the second side is driven by the first caliper to cause a relative displacement between the second side and the quick buckle protrusion; The two sides of the spring are respectively mounted on the first connecting hole and the second connecting hole, and the spring has an expansion or closing angle limit on the first caliper body and the second tong body, and the center of the spring forms an accommodating The first end of the sleeve has a bore, and the bore of the sleeve of the sleeve corresponds to the first clamping edge and the second clamping edge.

Therefore, the first caliper body and the second caliper body and the third caliper body are axially engaged by the pivotal reamer unit, and the first blade portion and the second blade portion form a shearable brake wire or The outer edge of the brake wire is clamped, and the auxiliary cutting edge increases the shearing force, so that the shearing work is labor-saving and the cross section of the brake wire is kept flat; and the pivoting member has a sharp reaming end. The outer tube of the brake wire which is flat after shearing can be reamed. When the brake wire is assembled, a tail sleeve is placed in the tail sleeve of the spring, and the first clamping edge and the first The second clamping edge clamps the wire tail sleeve; when the chain needs to be adjusted, the first clamping body is slightly expanded, so that the first side of the linking unit is interlocked with the first linking edge, and the second side and the fast The buckle convex portion generates an adjustment position for the chain, and a quick release assembly and disassembly is combined in the chain; therefore, the present invention can provide various bicycle maintenance operations and is convenient to carry.

Through the above structure, the functions that the present invention can provide are briefly described as follows:

1. The first caliper body and the second caliper body simplify the manufacturing process, and the first caliper body and the second caliper body and the third caliper body can shear the brake wire or the brake wire outer tube and maintain the flatness of the cross section. To simplify the assembly and increase the controllability of the brake line.

2. The pivoting reaming unit can be pivotally connected to the first caliper body and the second caliper body, and the further provided pivoting member is combined with the internal thread hex socket and the internal thread hex hole length can be The sharp reaming end of the protection is not leaked, and the pivoting member has a sharp reaming end, which can ream the casing after shearing the outer tube of the brake wire.

3. In addition to limiting the angle of deployment of the first caliper body and the second caliper body, the spring can further pass a tail sleeve through the central tail sleeve pocket and pass through the first caliper body and the second tongs. The first clamping edge and the second clamping edge of the body clamp the wire tail sleeve, so that the clamping tail sleeve and the outer cable sleeve of the brake wire are fast and accurate.

4. When the chain needs to be adjusted, the first side of the linkage unit and the first linkage edge are linked to each other, so that the second side and the quick buckle protrusion can adjust the disassembly and assembly position of the chain, and combine a quick buckle. Disassembled in the chain.

5. The invention can complete multiple operations such as trimming, shearing brake outer tube, reaming, group disassembly and quick release, clamping tail sleeve, clamping brake outer tube sleeve, etc., and is convenient to carry and has product advantages.

6. Compared with the above case, the case uses three tongs to move each other, which makes the trimming work force more labor-saving, and also makes the cross-section of the pipeline after cutting to be flat, which is conducive to the subsequent precise adjustment of the shifting line.

1‧‧‧ first tong body

11‧‧‧ first blade

12‧‧‧First pivot hole

13‧‧‧The first linkage

14‧‧‧First connection hole

15‧‧‧First clamping edge

16‧‧‧First grip

2‧‧‧Second caliper

21‧‧‧second blade

22‧‧‧Second internal threaded pivot hole

23‧‧‧Second connection hole

24‧‧‧Link unit assembly hole

25‧‧‧Second clip edge

26‧‧‧Quick button convex

261‧‧‧ flat head

262‧‧‧ neck

27‧‧‧Second grip

3‧‧‧ Third Pliers

31‧‧‧Auxiliary board pivot hole

32‧‧‧Auxiliary slide rails

33‧‧‧Auxiliary cutting edge

34‧‧‧Auxiliary spring

4‧‧‧Pivot reaming unit

41‧‧‧ pivotal parts

411‧‧‧reaming end

412‧‧‧Axis joint

42‧‧‧ Internal threaded hexagon socket

5‧‧‧ linkage unit

51‧‧‧Axis

52‧‧‧ first side

53‧‧‧ second side

531‧‧‧ flat head

532‧‧‧ neck

6‧‧‧ Spring

7‧‧‧Chain

71‧‧‧大通孔

72‧‧‧Small through hole

73‧‧‧Latch

8‧‧‧Line tail sleeve

81‧‧‧ hole

82‧‧‧Line tail sleeve

9‧‧‧ outer sleeve

Fig. 1 is a perspective view showing the structure of the present invention.

Fig. 2 is an exploded perspective view showing the structure of the present invention.

Figure 3 is a perspective view showing the structure of another aspect of the present invention.

Fig. 4 is a schematic view showing that the invention is applied to the outer line of the shear brake line or the variable speed brake line to keep the outer tube mouth flat and the thread cutting operation force is more labor-saving.

Fig. 5 is a schematic view showing the cutting operation of the first caliper body and the second caliper body of the present invention.

Fig. 6 is a view showing a positional comparison of the third caliper body and the second caliper body of the present invention when shearing.

Figure 7 is a view of the present invention applied to the reaming and the internal thread hex hole length to protect the sharp expansion Schematic diagram of the pivoting reaming unit with no leakage at the end of the hole.

Figure 8 is a schematic view showing the relevant displacement of the outer sleeve of the clamped tail bushing and the shear brake wire of the present invention.

9A and 9B are schematic views of the present invention applied to a group disassembly and quick release.

Figure 10 is a side view showing the structure of the present invention, showing that the thickness of the interlocking unit is maintained at the same center position and the same plane as that of the second caliper quick-release projection.

Figure 11 is a schematic cross-sectional view of the shear outer sleeve of the present invention.

Referring to Figures 1 to 11, the structural improvement of the multifunctional wire cutter of the present invention mainly comprises: a first tong body 1, a second tong body 2, a third tong body 3, and a pivotal reaming unit 4 A linkage unit 5, an internally threaded hexagon socket housing 42, and a spring 6 are formed.

Referring to Figures 1 to 11, the first caliper body 1 is formed by cutting a metal sheet, bending, pressing and flattening heat treatment, and unilateral plane grinding. The first caliper body 1 is A first blade portion 11, a first pivot hole 12, a first interlocking edge 13, a first connecting hole 14, a first clamping edge 15, and a first handle 16 are sequentially disposed.

Referring to FIGS. 1-11, the second caliper body 2 and the first caliper body 1 are joined to each other. The second caliper body 2 is different from the first caliper body 1 in that it is replaced by a metal plate. The flattening and trimming are performed by bending, pressing and flattening the heat treatment and unilateral plane grinding. The second caliper body 2 is sequentially provided with a second blade portion 21 and a second inner portion from top to bottom. Threaded pivot hole 22, a second connecting hole 23, a linkage unit assembly hole 24, a second clamping edge 25, a quick release projection 26 and a second handle 27 Composition.

Referring to FIGS. 1-11, the third caliper body 3 is assembled on the surface of the second caliper body 2. The third caliper body 3 includes an auxiliary plate pivot hole 31 and an auxiliary slide rail 32. The third caliper body 3 includes an auxiliary cutting edge 33, which is disposed in the same direction as the second cutting edge portion 21, and penetrates the auxiliary sliding rail 32 from the side of the third clamping body 3 by a coupling bolt, and One side is fixed to the second caliper body 2 such that the third caliper body 3 is interlocked with the second caliper body 2, and in the partial embodiment of the present invention, the third caliper body 3 and the first caliper body 1 are An auxiliary spring 34 is provided. As shown in the second and third figures, the third caliper body 3 is shaped to correspond to the second caliper body 2, and the auxiliary cutting edge 33 has a bending opening. When the pipeline cutting operation is performed, the first caliper body 1 is The auxiliary slide rail 32 on the third caliper body 3 and the auxiliary spring 34 generate an auxiliary shear force for the relevant displacement, so that the third caliper body 3 can assist the first caliper body 1 and the second caliper body 2 to be cut and used. It is more labor-saving and maintains the flatness of the outer pipeline.

Referring to FIGS. 1-11, the pivoting reaming unit 4 includes a pivoting member 41 and an internally threaded hexagon socket housing 42. The pivoting member 41 penetrates the first pivot hole 12 and the second inner portion. After the threaded pivot hole 22 and the auxiliary plate are pivoted, the internal threaded hexagon socket cover 42 is sleeved on the pivoting member 41. As shown in FIG. 7 , the pivoting member 41 has a reaming end 411 and a shaft connecting portion 412 . The shaft connecting portion 412 can be externally screwed to the internal threaded hexagon socket housing 42 and the reaming is protected. End 411.

Referring to FIGS. 1-11, the interlocking unit 5 has a U-shaped shape, and the linking unit 5 has a pivot portion 51. The linking unit 5 is combined in the linking unit assembly hole 24 through a coupling member; The unit 5 defines a first side 52 and a second side 53 by the axial portion 51. The first side 52 and the first interlocking edge 13 are hooked to each other, and are driven by the first caliper 1 to make the first The two sides 53 are in relative displacement with the quick snap projection 26. The linkage unit 5 penetrates the shaft core portion 51 through a rivet. In the interlocking unit assembly hole 24, the two are combined. Further, the quick-release convex portion 26 and the second side 53 have a flat head portion 261, 531 in an arc shape, and a tapered neck portion 262, 532 is disposed on the lower side, when the distance of the chain 7 is to be fastened, The quick release protrusion 26 and the second side 53 pull the latch 73 of the chain 7 from the large through hole 71 of the quick release to the small through hole 72 to complete the buckle cooperation, and vice versa.

Referring to FIGS. 1 to 11 , the two sides of the spring 6 are respectively mounted on the first connecting hole 14 and the second connecting hole 23 , and the spring 6 generates the first tong body 1 and the second tong body 2 . The angle of the spring 6 is unfolded or closed, and a hole 81 is formed in the center of the spring 6 to accommodate the first sleeve edge 8 and the aperture 81 corresponds to the first clamping edge 15 and the second clamping edge 25.

Referring to FIGS. 1-11, the first caliper body 1, the second caliper body 2, and the third caliper body 3 are axially engaged by the pivotal reamer unit 4, the first blade portion 11 and the second portion. The blade portion 21 forms a jaw that can shear the brake wire or the outer tube of the brake wire, and the auxiliary cutting edge 33 causes the brake wire and the outer pipe to bend and increases the shearing force; and the pivoting member 41 has a sharp edge. The reaming end 411 can ream the outer outer sleeve 9 of the brake line which is flat after being cut. After the brake line is assembled, the first sleeve 82 is placed in the hole 81 of the spring 6-line tail sleeve 8 And clamping the tail sleeve 82 with the first clamping edge 15 and the second clamping edge 25; when the chain 6 needs to be adjusted, the first clamping body 1 is slightly expanded, so that the linking unit 5 is The side 52 is interlocked with the first interlocking edge 13 , and the second side 53 and the quick release protrusion 26 are used to adjust the position of the chain 7 , and a quick release is assembled and assembled in the chain 7; therefore, the present invention can A variety of bicycle repairs are available and are easy to carry.

Next, the manner of use of the present invention will be described. As shown in Figures 4 to 6, it is mainly applied to the outer tube of the trimming and shearing brake line. Since the diameter of the outer tube of the brake wire is substantially more than 4 mm, the first caliper body 1. The second caliper body 2 and the third caliper body 3 have a thickness of substantially 3.5 mm or more. In use, the brake wire or the brake wire outer tube is placed on the jaw and through the first grip. Handle 16 and the The second grip 27 generates a lever such that the first blade portion 11 and the second blade portion 21 and the auxiliary cutting edge 33 cut the brake wire or the brake wire outer tube. In some embodiments, a soft grip sleeve can be selectively disposed on the first grip 16 and the second grip 27 to reduce the impact of the shear and the grip is more comfortable. Furthermore, the third caliper body 3 can be more labor-saving when performing the trimming operation with the aid of the elasticity of the auxiliary spring 34. Moreover, the present invention utilizes two cutting blades in the same direction (ie, the second caliper body 2, the third caliper body 3) and a reverse cutting edge (ie, the second caliper body 2) to cut the pipeline. It can be cut off more quickly and then keep the pipeline section flat (as shown in Figure 11), which makes the adjustment and maintenance of the subsequent brake line shifting line easier and more precise and makes the bicycle more stable.

Please refer to Figure 7 to maintain the cross-section of the outer sleeve 9 when the brake outer sleeve 9 is cut (as shown in Figure 9), further simplifying the assembly operation and making it easier to adjust. The reaming end 411 of the reaming unit 4 is inserted into the sleeve to make the brake line penetrate after the hole is reamed.

Referring to FIG. 8 , the spring 6 of the present case is further provided with a tail sleeve sleeve 8 and a bore 81. The sleeve sleeve 82 can be placed in the bore 81 and penetrate the first caliper 1 and the second. The first clamping edge 15 of the caliper body 2 and the second clamping edge 25 clamp the wire tail sleeve 82, so that the clamping tail sleeve 82 is simple, convenient, fast, accurate, and reduces the manufacturing cost of the caliper body.

Referring to FIG. 9A, when it is necessary to adjust the quick release of the replacement chain 7, the first caliper 1 is unfolded (as shown in the half-open state), so that the first side 52 of the linkage unit 5 and the first The interlocking edge 13 is interlocked, and an adjustment position (such as FIG. 9B) is generated for the chain 7 through the second side 53 and the quick-release convex portion 26, and a quick-release fastener is assembled and disassembled in the chain 7; therefore, the present invention can provide A variety of bicycle maintenance operations, to achieve the purpose of simplifying maintenance equipment and reducing the carrying of items.

Referring to FIG. 10, the invention is characterized in that the thickness of the linkage unit 5 is And the second tong body quick-release convex portion 26 is flattened to form the planar head portion 261 and remains at the same central position and the same two-plane thickness as the interlocking unit 5, and therefore, when the first caliper body 1 is connected to the first movable edge When the action is 13, the interlocking unit 5 can be smoothly driven to generate the clamping or unfolding operation, and the function of disassembling and fastening the quick release can be achieved by inserting the gap 2 mm in the same plane design.

In summary, the parts and processing costs used in the present invention are small, the manufacturing cost is greatly reduced, and the multi-functionality is integrated on a tong body, which has not been seen in various books or publicly used, and is in conformity with the requirements of the invention patent application. As soon as the patent is granted, it is a prayer.

It is to be understood that the above is the technical principle immediately applied to the specific implementation of the present invention. If the function of the present invention is changed, the function produced by the present invention does not exceed the spirit of the specification and the drawings. All should be included in the scope of the present invention.

Claims (8)

The utility model relates to a structural improvement of a multifunctional wire cutter, which mainly comprises: a first tong body, a second tong body, a third tong body, a pivotal reaming unit, a linkage unit and an internal thread hexagon socket cover The first caliper body is provided with a first blade portion, a first pivot hole, a first connecting edge, a first connecting hole, a first clamping edge and a first step from top to bottom. a first gripper is formed; the second caliper body and the first caliper body are opposite shafts, and the second caliper body is sequentially provided with a second blade portion and a second internal thread pivot hole from top to bottom. a second connecting hole, a linking unit assembling hole, a second clamping edge, a quick button convex portion and a second handle; the third tong body is assembled on the surface of the second tong body, the first The third caliper body includes an auxiliary plate pivot hole and an auxiliary slide rail, the third caliper body includes an auxiliary cutting edge, the auxiliary cutting edge and the second blade portion are disposed in the same direction, and The third caliper body penetrates the auxiliary slide rail on one side, and the other side is fixed to the second caliper body, so that the third caliper body is interlocked with the second caliper body; The reaming unit comprises a pivoting member and an internally threaded hexagonal ferrule sleeve. The pivoting member penetrates the first pivot hole and the second internally threaded pivot hole, and the auxiliary plate pivot hole, and then The internal threaded hexagon socket sleeve is sleeved on the pivoting member; the linkage unit has a U-shaped shape, and the linkage unit has a shaft center portion, and the linkage unit is combined in the linkage unit assembly hole through a coupling member; The linkage unit distinguishes a first side and a second side by the axial center portion, the first side and the first interlocking edge are mutually engaged, and are driven by the first caliper body to make the second side and the fast The buckle protrusions are oppositely displaced; the two sides of the spring are respectively mounted on the first connecting hole and the second connecting hole, and the spring generates an expansion or closing angle limit on the first caliper body and the second tong body, and The center of the spring forms a The hole of the one-tailed sleeve can be accommodated, and the hole of the sleeve of the tail sleeve corresponds to the first clamping edge and the second clamping edge; further, the first clamping body and the second The caliper body and the third caliper body are axially engaged by the pivotal reaming unit, and the first blade portion and the second blade portion form a jaw that can shear the brake wire or the outer tube of the brake wire, and the auxiliary The cutting edge increases the shearing force, which makes the shearing work labor-saving and keeps the cross section of the shifting line and the outer line of the brake wire flat after shearing. According to the structure of the multi-functional wire cutter according to claim 1, wherein the first caliper body and the second tong body are flattened by mechanical blanking, trimming, bending, pressing and flattening heat treatment. Single-sided plane grinding can be completed. The multi-functional wire cutter structure according to the first aspect of the patent application is improved, wherein the first caliper body and the second caliper body have a thickness of 3.5 mm or more. The multi-functional wire cutter structure according to the first aspect of the patent application is improved, wherein a soft grip sleeve is selectively disposed on the first handle and the second handle. The multi-functional wire cutter structure according to claim 1 is characterized in that the pivoting member has a reaming end and a shaft connecting portion, and the shaft connecting portion can select an external thread and the internal thread hexagon socket cover. The lock is fixed and protects the reaming end. According to the multi-functional wire cutter structure according to the first aspect of the patent application, the interlocking unit is inserted into the shaft core portion and the interlocking unit assembly hole through a rivet, and the two are combined. The utility model is characterized in that the multi-function wire cutter according to claim 1 is improved, wherein the quick-release convex portion and the flat surface of the second side are arc-shaped, and a tapered neck is arranged below. The multi-functional wire cutter structure according to the first aspect of the patent application is improved, wherein the third caliper body and the first caliper body are provided with an auxiliary spring.