CN214005244U

CN214005244U - Rope end clamp

Info

Publication number: CN214005244U
Application number: CN202022601416.2U
Authority: CN
Inventors: 张华智; 韦海伟; 程福奎; 盛峭敏
Original assignee: Guangdong Esquel Textiles Co Ltd
Current assignee: Guangdong Kangpai Huanchuang Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-08-20
Anticipated expiration: 2030-11-11

Abstract

The utility model relates to a rope end anchor clamps. The rope end clamp comprises a base, a first rope end mounting mechanism and a second rope end mounting mechanism. First rope end installation mechanism includes first installed part and a plurality of first mounting grooves that stretch out from first installed part, and second rope end installation mechanism includes second installed part and a plurality of second mounting grooves that stretch out from the second installed part. When using this rope end anchor clamps, install the fag end at rope both ends respectively in first mounting groove and the second mounting groove, every rope corresponds a first mounting groove and a second mounting groove. At this moment, the rope ends at the two ends of the rope are respectively installed in the first installation groove and the second installation groove, and the parts of the rope ends to be processed respectively protrude out of the first installation groove and the second installation groove. Can unify the processing to the one end of many ropes like this, unify the processing to the other end of many ropes again, can effectively reduce staff's work load, improve production efficiency.

Description

Rope end clamp

Technical Field

The utility model belongs to the technical field of the rope processing technique and specifically relates to a rope end anchor clamps are related to.

Background

In the weaving process, ropes are a common product. In general, special processing needs to be performed on the rope ends at two ends of the rope to meet the use requirement of the rope. At traditional processing, often the staff is manual to be processed respectively the fag end at each rope both ends, and such processing mode staff's work load is great, and production efficiency is on the low side.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a rope end clamp, adopt rope end clamp can carry out orderly arrangement to the rope end, reduces staff's work load in the course of working, improves production efficiency.

In order to solve the technical problem, the technical scheme of the utility model is that:

an object of the utility model is to provide a rope end clamp, which comprises a base, a first rope end mounting mechanism and a second rope end mounting mechanism;

the first rope end mounting mechanism comprises a first mounting piece and a plurality of first mounting grooves extending out of the first mounting piece, and the second rope end mounting mechanism comprises a second mounting piece and a plurality of second mounting grooves extending out of the second mounting piece;

the first mounting part and/or the second mounting part are movably connected to the base; first installed part with the second installed part is mutually supported in order to be used for adjusting first mounting groove with distance between the second mounting groove, and realize first mounting groove with the second mounting groove one-to-one is in order to be used for installing the fag end at rope both ends respectively.

In one embodiment, a plurality of the first mounting grooves are uniformly distributed on the first mounting member, and a plurality of the second mounting grooves are uniformly distributed on the second mounting member.

In one embodiment, the first mounting groove extends from a direction perpendicular to the first mounting member; and/or the presence of a gas in the gas,

the second mounting groove extends from a direction perpendicular to the second mounting member.

In one embodiment, the first mounting groove and the second mounting groove are located on the same side of the base, and the opening direction of the first mounting groove is the same as the opening direction of the second mounting groove.

In one embodiment, the base has a first mounting surface and a second mounting surface opposite the first mounting surface;

the first rope end mounting mechanism and the second rope end mounting mechanism which are matched with each other are arranged on the first mounting surface;

and the second mounting surface is provided with the first rope end mounting mechanism and the second rope end mounting mechanism which are matched with each other.

In one embodiment, the cord end clamp further comprises a first stop; the first mounting part is provided with a first limiting groove; the first limiting piece penetrates through the first limiting groove to be used for limiting the displacement of the first mounting piece on the base.

In one embodiment, the base is provided with a first matching hole; the first locating hole is matched with the first locating part to limit the displacement of the first mounting part on the base.

In one embodiment, the cord end clamp further comprises a second stop; a second limiting groove is formed in the second mounting piece; the second limiting piece penetrates through the second limiting groove to be used for limiting the displacement of the second mounting piece on the base.

In one embodiment, a second positioning hole is arranged on the base; the second positioning hole is matched with the second limiting piece to limit the displacement of the second mounting piece on the base.

In one embodiment, the width of the first mounting groove is 2.4 mm-2.6 mm; the width of the second mounting groove is 2.4 mm-2.6 mm.

The rope end clamp comprises a base, a first rope end mounting mechanism and a second rope end mounting mechanism. First rope end installation mechanism includes first installed part and a plurality of first mounting grooves that stretch out from first installed part, and second rope end installation mechanism includes second installed part and a plurality of second mounting grooves that stretch out from the second installed part. First installed part and/or second installed part swing joint are in the base, and first installed part and second installed part mutually support in order to be used for adjusting the distance between first mounting groove and the second mounting groove, and realize first mounting groove and second mounting groove one-to-one in order to be used for installing the fag end at rope both ends respectively. When using above-mentioned rope end anchor clamps, through adjusting the relative position between first installed part and the second installed part, adjust suitable distance between first mounting groove and the second mounting groove, and make first mounting groove and second mounting groove one-to-one. Then install the fag end at rope both ends respectively in first mounting groove and the second mounting groove, every rope corresponds a first mounting groove and a second mounting groove. At this moment, the rope ends at the two ends of the rope are respectively installed in the first installation groove and the second installation groove, and the parts of the rope ends to be processed respectively protrude out of the first installation groove and the second installation groove. Can arrange many ropes in an orderly manner on rope end anchor clamps like this, the position and the direction of rethread regulation base are unified to the one end of many ropes and are processed, process in unison to the other end of many ropes again. In the process of processing the rope end by adopting the rope end clamp, the working personnel do not need to process the rope end of each rope independently, the workload of the working personnel can be effectively reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a rope end clamp according to an embodiment of the present invention;

fig. 2 is a schematic view of the rope clamp corresponding to fig. 1 at another angle;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

The notation in the figure is:

100. a rope end clamp; 101. a base; 102. a first rope end mounting mechanism; 1021. a first mounting member; 10211. a first limit groove; 1022. a first mounting groove; 103. a second rope end mounting mechanism; 1031. a second mount; 10311. a second limit groove; 1032. a second mounting groove; 104. a first limit piece; 105. a second limiting member.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, an embodiment of the present invention provides a rope end clamp 100. The rope head clamp 100 comprises a base 101, a first rope head installation mechanism 102 and a second rope head installation mechanism 103; the first string head mounting mechanism 102 comprises a first mounting member 1021 and a plurality of first mounting slots 1022 protruding from the first mounting member 1021, and the second string head mounting mechanism 103 comprises a second mounting member 1031 and a plurality of second mounting slots 1032 protruding from the second mounting member 1031; the first mounting part 1021 and/or the second mounting part 1031 are movably connected to the base 101, the first mounting part 1021 and the second mounting part 1031 are matched with each other to adjust the distance between the first mounting groove 1022 and the second mounting groove 1032, and the first mounting groove 1022 and the second mounting groove 1032 are in one-to-one correspondence to each other to mount the rope ends at two ends of the rope respectively.

When the string clip 100 in the present embodiment is used, the first mounting groove 1022 and the second mounting groove 1032 are adjusted to an appropriate distance by adjusting the relative position between the first mounting member 1021 and the second mounting member 1031, and the first mounting groove 1022 and the second mounting groove 1032 are in one-to-one correspondence. Then, the ends of the ropes at both ends are respectively mounted in the first mounting groove 1022 and the second mounting groove 1032, and each rope corresponds to one first mounting groove 1022 and one second mounting groove 1032. At this time, the ends of the rope at both ends of the rope are respectively installed in the first installation groove 1022 and the second installation groove 1032, and the portions of the rope ends to be processed protrude out of the first installation groove 1022 and the second installation groove 1032 respectively. Can arrange many ropes in an orderly manner on fag end anchor clamps 100 like this, the one end of many ropes is unified to processing to position and the direction of rethread adjustment base 101, processes in unison to the other end of many ropes again. In the process of processing the rope by adopting the rope clamp 100 in the embodiment, the working personnel do not need to process the rope of each rope independently, the workload of the working personnel can be effectively reduced, and the production efficiency is improved.

In one specific example, the rope clamp 100 is comprised of a base 101, a first rope end mounting mechanism 102, and a second rope end mounting mechanism 103; the first string head mounting mechanism 102 comprises a first mounting member 1021 and a plurality of first mounting slots 1022 protruding from the first mounting member 1021, and the second string head mounting mechanism 103 comprises a second mounting member 1031 and a plurality of second mounting slots 1032 protruding from the second mounting member 1031; the first mounting part 1021 and/or the second mounting part 1031 are movably connected to the base 101, the first mounting part 1021 and the second mounting part 1031 are matched with each other to adjust the distance between the first mounting groove 1022 and the second mounting groove 1032, and the first mounting groove 1022 and the second mounting groove 1032 are in one-to-one correspondence to each other to mount the rope ends at two ends of the rope respectively.

Further, the rope head clamp 100 is composed of a base 101, a first rope head mounting mechanism 102 and a second rope head mounting mechanism 103; the first string attachment mechanism 102 comprises a first mounting member 1021 and a plurality of first mounting slots 1022 extending from the first mounting member 1021, and the second string attachment mechanism 103 comprises a second mounting member 1031 and a plurality of second mounting slots 1032 extending from the second mounting member 1031; the first mounting part 1021 and/or the second mounting part 1031 are movably connected to the base 101, the first mounting part 1021 and the second mounting part 1031 are matched with each other to adjust the distance between the first mounting groove 1022 and the second mounting groove 1032, and the first mounting groove 1022 and the second mounting groove 1032 are in one-to-one correspondence to each other to mount the rope ends at two ends of the rope respectively. The string head clamp 100 only comprises a base 101, a first string head mounting mechanism 102 and a second string head mounting mechanism 103, wherein the first string head mounting mechanism 102 comprises a first mounting part 1021 and a plurality of first mounting grooves 1022 extending from the first mounting part 1021, and when the second string head mounting mechanism 103 comprises a second mounting part 1031 and a plurality of second mounting grooves 1032 extending from the second mounting part 1031, the string heads at two ends of the string can be respectively mounted in the first mounting groove 1022 and the second mounting groove 1032, and parts of the string heads to be processed respectively protrude out of the first mounting groove 1022 and the second mounting groove 1032. Can arrange many ropes in an orderly manner on fag end anchor clamps 100 like this, the one end of many ropes is unified to processing to position and the direction of rethread adjustment base 101, processes in unison to the other end of many ropes again.

As a distribution manner of the plurality of first mounting grooves 1022 and the plurality of second mounting grooves 1032, the plurality of first mounting grooves 1022 are uniformly distributed on the first mounting member 1021, and the plurality of second mounting grooves 1032 are uniformly distributed on the second mounting member 1031. At this time, the distances between the adjacent first mounting grooves 1022 are equal, and the distances between the adjacent second mounting grooves 1032 are equal. When the rope is installed on the rope end clamp 100, the distance between the adjacent ropes is equal, so that the order degree of the ropes is favorably further improved, and the consistency of rope end processing is improved.

In a specific example, the first mounting groove 1022 and the first mounting member 1021 are integrally formed; and/or the second mounting groove 1032 and the second mounting member 1031 are integrally formed. The integrally formed structure facilitates the forming process and provides stability to the end clip 100. Preferably, the first mounting groove 1022 and the first mounting member 1021 are integrally formed, while the second mounting groove 1032 and the second mounting member 1031 are integrally formed.

In a specific example, the first mounting groove 1022 protrudes from a direction perpendicular to the first mounting part 1021. The first mounting groove 1022 protrudes from a direction perpendicular to the first mounting part 1021, facilitating the formation of the first mounting groove 1022. As a molding manner of the first mounting groove 1022, one end of the first mounting element 1021 is bent to form an included angle of 90 ° to form a bent end of the first mounting element 1021, and then the bent end of the first mounting element 1021 is grooved to form the first mounting groove 1022. It can be understood that, when the first installation groove 1022 is formed, one end of the first installation part 1021 can be bent to form a suitable included angle to form a bent end of the first installation part 1021, for example, one end of the first installation part 1021 is bent to form a 30 ° included angle, a 45 ° included angle, a 60 ° included angle, a 120 ° included angle, and the like.

In another specific example, the second mounting groove 1032 protrudes from a direction perpendicular to the second mounting member 1031. The second mounting groove 1032 protrudes from a direction perpendicular to the second mounting member 1031, facilitating the formation of the second mounting groove 1032. As a molding manner of the second mounting groove 1032, one end of the second mounting member 1031 is bent to form an included angle of 90 ° to form a bent end of the second mounting member 1031, and then the bent end of the second mounting member 1031 is grooved to form the second mounting groove 1032. It can be understood that when the second mounting groove 1032 is formed, one end of the second mounting member 1031 can be bent to form a suitable included angle to form a bent end of the second mounting member 1031, for example, one end of the second mounting member 1031 is bent to form a 30 ° included angle, a 45 ° included angle, a 60 ° included angle, a 120 ° included angle, etc.

Preferably, the first mounting groove 1022 and the second mounting groove 1032 are located on the same side of the base 101, and the opening direction of the first mounting groove 1022 is the same as the opening direction of the second mounting groove 1032. At this point, the cord may be maintained on the same side of the base 101. And, because the opening direction of first mounting groove 1022 is the same with the opening direction of second mounting groove 1032, when the installation of rope, with the both ends of rope block respectively into first mounting groove 1022 and second mounting groove 1032 in can, the installation of the rope of being convenient for.

In a specific example, the base 101 has a first mounting surface and a second mounting surface opposite to the first mounting surface; the first mounting surface is provided with a first rope end mounting mechanism 102 and a second rope end mounting mechanism 103 which are matched with each other; the second mounting surface is provided with a first rope end mounting mechanism 102 and a second rope end mounting mechanism 103 which are matched with each other. In this example, the number of the first string head mounting mechanisms 102 is 2, the number of the second string head mounting mechanisms 103 is 2, and in the string head processing process, the strings can be orderly arranged on the first mounting surface and the second mounting surface of the base 101, so that the processing efficiency of the strings is further improved.

When the first mounting member 1021 moves on the base 101, the first mounting member 1021 is provided with a first limiting groove 10211 for limiting the displacement of the first mounting member 1021 on the base 101. Specifically, the rope clamp 100 further includes a first limiting member 104; the first limiting member 104 passes through the first limiting slot 10211 for limiting the displacement of the first mounting member 1021 on the base 101. The displacement of the first mounting member 1021 on the base 101 can be limited by the cooperation of the first limiting member 104 and the first limiting groove 10211, so that the first mounting member 1021 and the second mounting member 1031 can be adjusted to proper positions. Preferably, one end of the first limiting element 104 protruding from the first limiting groove 10211 abuts against the first mounting element 1021. The first limiting piece 104 penetrates through the first limiting groove 10211, one end of the first limiting piece 104 protruding out of the first limiting groove 10211 abuts against the first mounting piece 1021, when the position of the first mounting piece 1021 is adjusted, the first mounting piece 1021 is adjusted to a proper position, then the first limiting piece 104 penetrates through the first limiting groove 10211, and one end of the first limiting piece 104 protruding out of the first limiting groove 10211 abuts against the first mounting piece 1021, so that the position of the first mounting piece 1021 can be fixed on the base 101. When the position of the first mounting member 1021 needs to be adjusted again, the first limiting member 104 is removed, the fixing of the first mounting member 1021 on the base 101 is released, the first mounting member 1021 is adjusted to a proper position, and the first mounting member 1021 is fixed through the first limiting member 104, so that the operation of adjusting the position of the first mounting member 1021 on the base 101 is completed.

Specifically, the base 101 is provided with a first positioning hole (not shown in the figure); the first positioning hole is matched with the first limiting member 104 for limiting the displacement of the first mounting member 1021 on the base 101. When the first limiting member 104 limits the position of the first mounting member 1021 on the base 101, the first limiting member 104 extends into the first positioning hole, and the first mounting member 1021 is limited from moving on the base 101 by the cooperation between the first positioning hole and the first limiting member 104. Further, the inner wall of the first coordination hole is provided with a thread, and the outer wall of the first position-limiting member 104 is provided with a thread matched with the thread on the inner wall of the first coordination hole. The inner wall of the first coordination hole and the outer wall of the first limiting part 104 are provided with matched threads, so that the first limiting part 104 can be detachably mounted in the first coordination hole, and the position of the first mounting part 1021 on the base 101 can be conveniently adjusted.

When the second mounting member 1031 moves on the base 101, a second limiting groove 10311 is provided on the second mounting member 1031 for limiting the displacement of the second mounting member 1031 on the base 101. Specifically, the rope clamp 100 further includes a second stopper 105; the second limiting member 105 passes through the second limiting groove 10311 for limiting the displacement of the second mounting member 1031 on the base 101. The displacement of the second mounting member 1031 on the base 101 can be limited by the cooperation of the second limiting member 105 and the second limiting groove 10311, so that the second mounting member 1031 and the first mounting member 1021 can be adjusted to proper positions. Preferably, one end of the second limiting member 105 protruding out of the second limiting groove 10311 abuts against the second mounting member 1031. The second limiting member 105 penetrates through the second limiting groove 10311, one end of the second limiting member 105 protruding out of the second limiting groove 10311 abuts against the second mounting member 1031, when the position of the second mounting member 1031 is adjusted, the second mounting member 1031 is adjusted to a proper position, then the second limiting member 105 penetrates through the second limiting groove 10311, one end of the second limiting member 105 protruding out of the second limiting groove 10311 abuts against the second mounting member 1031, and therefore the position of the second mounting member 1031 can be fixed on the base 101. When the position of the second mounting member 1031 needs to be adjusted again, the second limiting member 105 is removed, the fixing of the second mounting member 1031 on the base 101 is released, the second mounting member 1031 is adjusted to a proper position, the second mounting member 1031 is fixed by the second limiting member 105, and the operation of adjusting the position of the second mounting member 1031 on the base 101 is completed.

Specifically, the base 101 is provided with a second positioning hole (not shown in the figure); the second positioning hole is matched with the second limiting member 105 for limiting the displacement of the second mounting member 1031 on the base 101. When the second limiting member 105 limits the position of the second mounting member 1031 on the base 101, the second limiting member 105 extends into the second positioning hole, and the second mounting member 1031 is limited in displacement on the base 101 by the engagement of the second positioning hole and the second limiting member 105. Further, the inner wall of the second coordination hole is provided with threads, and the outer wall of the second limiting member 105 is provided with threads matched with the threads on the inner wall of the second coordination hole. The second locating member 105 is detachably mounted in the second coordination hole by providing a matching thread on the inner wall of the second coordination hole and the outer wall of the second locating member 105, so that the position of the second mounting member 1031 on the base 101 can be adjusted conveniently.

In a preferred embodiment, the width of the first mounting groove 1022 is 2.4mm to 2.6 mm. The width of the second mounting groove 1032 is 2.4 mm-2.6 mm. The distance between the first mounting groove 1022 and the second mounting groove 1032 is 3 cm-18 cm. Preferably, when the rope end of the rope is processed, the length of the rope is preferably 7 cm-20 cm, one end of the rope end, which needs to be processed, protrudes out of the first installation groove by 2 cm-4 cm, and the other end of the rope end, which needs to be processed, protrudes out of the second installation groove by 2 cm-4 cm. The diameter of the rope is preferably 2.6 mm-3.6 mm, the two ends of the rope are respectively clamped through the first mounting groove 1022 and the second mounting groove 1032, and the rope is orderly arranged on the rope end clamp 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A rope end clamp is characterized in that: the rope fastening device comprises a base, a first rope end mounting mechanism and a second rope end mounting mechanism;

2. The rope clamp of claim 1, wherein: the first installation grooves are uniformly distributed on the first installation part, and the second installation grooves are uniformly distributed on the second installation part.

3. The rope clamp of claim 1, wherein: the first mounting groove extends out from the direction perpendicular to the first mounting piece; and/or the presence of a gas in the gas,

4. The rope clamp of claim 1, wherein: the first mounting groove with the second mounting groove is located the homonymy of base, just the opening direction of first mounting groove with the opening direction of second mounting groove is the same.

5. The rope clamp of claim 1, wherein: the base is provided with a first mounting surface and a second mounting surface opposite to the first mounting surface;

6. The rope clamp of any one of claims 1-5, wherein: the rope head clamp further comprises a first limiting piece; the first mounting part is provided with a first limiting groove; the first limiting piece penetrates through the first limiting groove to be used for limiting the displacement of the first mounting piece on the base.

7. The rope clamp of claim 6 wherein: a first matching hole is formed in the base; the first locating hole is matched with the first locating part to limit the displacement of the first mounting part on the base.

8. The rope clamp of any one of claims 1-5, wherein: the rope head clamp further comprises a second limiting piece; a second limiting groove is formed in the second mounting piece; the second limiting piece penetrates through the second limiting groove to be used for limiting the displacement of the second mounting piece on the base.

9. The rope clamp of claim 8, wherein: a second matching hole is formed in the base; the second positioning hole is matched with the second limiting piece to limit the displacement of the second mounting piece on the base.

10. The rope clamp of any one of claims 1-5, wherein: the width of the first mounting groove is 2.4 mm-2.6 mm; the width of the second mounting groove is 2.4 mm-2.6 mm.