JP2004317527A - Cable connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable connector which can be easily connected even to another equipment such as a transceiver and in which cleaning of the tip of a ferrule is made easy. <P>SOLUTION: Since the cable connector is constituted in such a way that optical fibers of the same shape can be directly connected with each other and moreover the tip of a sleeve 10 can be moved to positions behind the end face 8a of the ferrule 8, the cable connector does not impose restriction on the light emitting/light receiving optical system of the transceiver, etc. Thereby, the connector can maintain a satisfactory connection state between the transceiver. Also when cleaning the tip of the ferrule 8, cleaning work is made possible by pushing the tip of a sleeve 10 to positions behind the the end face 8a of the ferrule 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cable connector for connecting optical fiber cables, for example.
[0002]
[Prior art]
Conventionally, a dedicated connector has been used to connect an optical fiber cable. For example, there is a connector generally called SC type defined in JIS C5973. In this standard, an adapter is separately prepared and two cables are connected via the adapter. That is, the adapter has two ports, and connectors are inserted into the two ports to connect the optical fiber cables to each other.
[0003]
Therefore, a connector capable of directly connecting optical fiber connectors has been proposed (for example, see Patent Document 1). In this connector, for example, a plug 5A is provided on an outer peripheral portion of a ferrule 2A for holding an optical fiber, and an engaging piece convex portion 3A and an engaging piece concave portion 4A are formed at the tip of the plug 5A. The case 8A has a projection 7A that fits into the mating connector and a square hole 6A into which the projection 7B of the mating connector is inserted.
[0004]
When the connectors are brought closer to each other with the projection 7A and the square hole 6A into which the projection 7B of the mating connector is inserted facing each other, the engaging piece convex part 3A and the engaging piece concave part 4A engage and position each other. . When the distance is further approached, the protrusion 7A and the square hole 6B of the mating connector are fitted, and the connection between the optical fibers is completed.
[0005]
[Patent Document 1]
JP-A-9-5572 (paragraph [0007], FIGS. 1 and 2).
[0006]
[Problems to be solved by the invention]
However, the connector described in Patent Literature 1 is configured such that the engagement piece projection 3A is always located forward of the tip of the ferrule 2A. Therefore, for example, when connected to a transceiver that transmits and receives an optical signal, the light emitting and receiving optical systems inside the transceiver are restricted. For example, a gap is generated between the tip of the ferrule 2A and the light emitting / receiving element provided in the transceiver by the amount of protrusion of the engaging piece convex portion 3A. In this case, a light emitting / receiving element designed on the assumption that the ferrule tip is less than 1 mm or less cannot be used. It is very difficult to set the protrusion amount of the engagement piece convex portion 3A to 1 mm or less in order to maintain the connection accuracy as an optical fiber connector.
[0007]
Even when a light emitting / receiving element that can be used even when such a gap is generated is designed, the total length of the transceiver is lengthened by the gap.
[0008]
Further, when the tip of the ferrule is contaminated, there is a problem that cleaning of the tip of the ferrule is very difficult because the engaging piece convex portion 3A always projects from the tip of the ferrule.
[0009]
Further, in the connector described in Patent Literature 1, the square hole 6A and the protrusion 7A are provided only on one side of the rectangular lock housing 8A. Therefore, the square holes 6A and the projections 7A engage with the square holes 6B and the projections 7B on the mating side, and even after the connectors are connected to each other, there is a slight gap between the lock housings 8A and 8B. If the device is left for a long time with such a gap formed, dust, dust and unexpected foreign matter may enter through the gap, which may cause an abnormality in the connection surface of the optical fiber.
[0010]
In view of the above circumstances, an object of the present invention is to provide a cable connector that can be easily connected to another device such as a transceiver.
[0011]
An object of the present invention is to provide a cable connector that can easily clean the tip of a holding member such as a ferrule.
[0012]
An object of the present invention is to provide a cable connector capable of protecting a connection surface between holding members such as ferrules or a connection surface between cables such as optical fibers from foreign substances such as dust and dust.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, a cable connector according to the present invention comprises: (a) a first cable having a first end face and an outer peripheral face and capable of transmitting data having a second end face; A first holding member for holding the first end surface and the second end surface so as to be substantially the same surface; and (b) an opening at one end, wherein the first end surface is projected from the opening so that the first end surface protrudes from the opening. A main body accommodating the first holding member, a second cable integrally provided with the main body, having a third end face, and having a fourth end face and capable of transmitting the data, A case having an engaging portion engageable with the same external connector as the cable connector having a second holding member for holding the end surface and the fourth end surface so as to be substantially the same surface; And (c) the first holding member having a tip end in the axial direction of the first cable. The first holding member is provided so as to be slidable on an outer peripheral surface thereof, and at least a first end of the first holding member for bringing the second end surface of the first cable into contact with a fourth end surface of the second cable. And a first positioning member for performing positioning by bringing the end surface of the second holding member into contact with the third end surface of the second holding member.
[0014]
According to the present invention, the cable connector of the present invention can be directly connected to the same external connector. Further, a first positioning member is slidably provided on an outer peripheral surface of the first holding member in an axial direction of the first cable. Thus, for example, the first positioning member can be moved so as not to protrude from the first end surface of the first holding member. This makes it possible to easily connect to an external device such as a transceiver while positioning the first cable or the first holding member with respect to the external device using the first positioning member. Further, by moving the first positioning member to such a position as not to protrude from the first end surface of the first holding member, the first end surface can be easily cleaned. “At least” means that the first positioning member can perform positioning with respect to a device other than such a connector.
[0015]
In one embodiment of the present invention, the tip of the first positioning member is at least positioned on the external connector side to be engaged with the first end face, and is located on the same plane as the first end face. The apparatus further includes a support for supporting the first positioning member so as to move between the first position and the second position. In the present invention, for example, at least before connecting to the external connector, the tip of the first positioning member is arranged at a position on the external connector side to be engaged with the first end surface. After connection with the external connector, the tip may be at that position. Thereby, the positioning of the first cable (or the first holding member) and the second cable (the second holding member) can be reliably performed. On the other hand, for example, when connected to another device that is not a connector, the tip is arranged at least on the same plane as the first end face. The tip may be opposite the first end face to another device. Thus, it is possible to surely position the other device and the first cable (or the first holding member) and to eliminate, for example, restrictions on hardware design of another device. Further, since the tip of the first positioning member moves to a position on the same plane as the first end face, the first end face can be easily cleaned.
[0016]
In one embodiment of the present invention, a first biasing member attached to the main body and biasing the first holding member toward the external connector in a state where the first holding member is engaged with the external connector by the engagement portion. A member is further provided. In the present invention, the first holding member is urged toward the external connector by the first urging member while being positioned by the first positioning member. As a result, an urging force is further applied to the first holding member in the positioned state, so that the positioning state can be accurately maintained.
[0017]
In one embodiment of the present invention, the engagement unit can further be engaged with an external device capable of transmitting and receiving the data, wherein the external device includes an element for transmitting and receiving the data and the first positioning device. A second positioning member that is provided so as to be engageable with a member, and that positions the element so as to face the second end surface of the first cable, wherein the support portion includes the first positioning member. A second urging member for urging the first positioning member toward the external device in a state in which the first positioning member is engaged with the member and the second positioning member. In the present invention, since the first positioning member itself is urged toward the external device by the second urging member, the engagement state or the positioning state of the first positioning member with respect to the second positioning member is changed. Can be maintained precisely.
[0018]
In one embodiment of the present invention, when the first positioning member is engaged with the second positioning member, the support portion may move the front end to a position on the same plane as the first end surface or a position higher than the first end surface. The first positioning member is supported so as to be disposed at a position opposite to the external device to be combined. By arranging the tip of the first positioning member on the same plane as the first end face or on the side opposite to the external device, the gap between the first end face and the transmitting / receiving element can be made as small as possible. . This makes it possible to maintain a good connection state with an external device.
[0019]
In one embodiment of the present invention, the engagement portion engages with a first engagement body that can be fitted into a second concave portion of the external connector and the cable connector of the external connector. And a first recess in which a second engaging body is fittable, and the outer periphery of the case when the first engaging body and the first recess are viewed in a plane in the axial direction of the cable. Together is approximately half of the length of the outer circumference. Almost half means a length that is as close to half as possible. Therefore, its length may be slightly shorter than the half. With such a configuration, the first and second holding members and the first and second positioning members engaged with each other are concealed when engaged with and connected to an external connector. Thereby, the connection surface between the first and second holding members or the connection surface between the first and second cables can be protected from foreign substances such as dust and dust.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
FIG. 1 is a perspective view showing a cable connector according to one embodiment of the present invention. FIG. 2 is a front view of the cable connector, and FIGS. 4 and 5 are a sectional view taken along the line AA and a sectional view taken along the line BB shown in FIG. 2, respectively. Hereinafter, in FIGS. 4 and 5, the left side in the figures is the front, and the right side in the figures is the rear.
[0022]
A ferrule 8 holding an optical fiber 9 is provided inside a case 6 of the connector 1. The ferrule 8 holds the optical fiber 9 such that its end face 8a and the end face 9a of the optical fiber 9 are flush. This surface is precisely polished. The ferrule 8 is provided such that its end face 8a projects outward from an opening 6a formed at one end of the case 6. The rear end of the ferrule 8 is supported by a ferrule support 14. A ferrule stopper 13 is provided on the rear side of the ferrule support 14, and the first spring 12 is mounted between the flange 14 a of the ferrule support 14 and the ferrule stopper 13. Thus, the ferrule 8 and the ferrule support 14 are integrally movable with respect to the case 6. The ferrule stopper 13 is fixed to the case 6 with, for example, screws 15 as shown in FIG. The ferrule stopper 13 may be fixed by means such as bonding, press fitting, welding, or the like. In a stationary state as illustrated, the ferrule support 14 is urged forward by the first spring 12. In this state of being urged, the flange 14a of the ferrule support 14 comes into contact with the stopper 6b formed in the case 6 and is in a stationary state.
[0023]
A sleeve 10 as a positioning member is mounted on the front side of the ferrule 8. As shown in FIG. 6, the sleeve 10 is formed such that the engagement pieces 10a and 10b face, for example, a cylindrical base body 10c. As will be described later, the sleeve 10 mainly functions to position the ferrule 8 when connecting to a device such as a mating connector or an external transceiver. The two engagement pieces 10a and 10b of the sleeve 10 are attached at an angle rotated by 45 degrees when viewed from the front as shown in FIG. This angle is restricted by the stopper 6c in the case 6, so that the two engagement pieces 10a and 10b do not deviate from this angle. For example, four stoppers 6c are formed integrally with the case 6, for example, four stoppers are provided.
[0024]
As shown in FIGS. 4 and 5, a second spring 11 is mounted between the rear end of the sleeve 10 and the ferrule support 14. This allows the sleeve 10 to slide on the outer peripheral surface of the ferrule 8. That is, the sleeve 10 moves relatively to the integrated ferrule 8 and ferrule support 14. In the stationary state as shown in the drawing, the sleeve 10 is urged forward by the second spring 11. In this state of being urged, the base body 10c of the sleeve 10 comes into contact with the stopper 6c and is in a stationary state. In this stationary state, the front end of the sleeve 10, that is, the front end of the engagement pieces 10a and 10b, is disposed forward of the end face 8a of the ferrule 8.
[0025]
On the front side of the case 6, guide levers 7a and 7b are formed integrally with the case 6, for example. Each of the guide levers 7a and 7b is partially thin so that it can be slightly deformed with respect to the case body. The guide levers 7a and 7b are formed with projections 71a and 71b, respectively, for fitting with a mating connector or the like at the time of connection. The guide levers 7a and 7b are arranged diagonally on the end face of the case 6, as shown in FIG. In addition, the case 6 is provided with concave portions 72a and 72b diagonally on its end face. These recesses 72a and 72b are for fitting a guide lever or the like of a mating connector. It is important that the fitting force (holding force for keeping the cases in close contact with each other) is designed to exceed the force generated by the first spring 12 (peeling force acting in the direction of separating the cases). It is. Engagement projections 73a and 73b are provided in the recesses 72a and 72b so that projections (71a and 71b) such as guide levers of a mating connector engage with each other. Even when the connector is rotated by 180 degrees, fitting can be performed under exactly the same conditions.
[0026]
FIG. 3 shows a modification of the case 6, in which guide levers 7a and 7b are arranged in parallel. Also, the concave portions 72a and 72b are arranged in parallel in accordance with this. Even with the connector having such a configuration, the same connector can be connected to each other.
[0027]
Next, the connection operation between the connectors will be described. FIG. 7A shows a state before connection, and FIG. 7B shows a state after connection is completed.
[0028]
First, the connectors 1 face each other. When the connectors 1 are brought closer to each other, the guide levers 7a and 7b enter the concave portions 72a and 72b on the other side, and the cases 6 are positioned.
[0029]
When the armature is further approached, the engagement pieces 10a and 10b of the sleeve 10 start to be fitted with the tip of the mating ferrule 8, and accurate positioning of the ferrules 8 is performed. Thereby, the connection between the end faces 9a of the optical fiber cable 9 is precisely performed.
[0030]
When the ferrules 8 are further approached, the end faces 8 a of the ferrules 8 contact each other, and the ferrules 8 move rearward against the urging force of the first spring 12. By such an action, the optical fibers 9 are brought into close contact with each other, so that optical data can be transmitted.
[0031]
When the first spring 12 is further approached, the first spring 12 is compressed, and a gap starts to be formed between the stopper 6b and the flange 14a. The projections 71a, 71b of the guide levers 7a, 7b engage with the mating engagement projections 73a, 73b, and the connection operation ends.
[0032]
In order to release the connection of the connectors 1, it is only necessary to pull the connectors 1 in a direction to separate them. When the projections 71a, 71b of the guide levers 7a, 7b and the mating engagement projections 73a, 73b are separated by a force larger than the engagement force, the fitting is released, and the guide levers 7a, 7b are easily separated by an operation reverse to the connection operation.
[0033]
Next, the connection between the connector 1 and the transceiver will be described. FIG. 8 is a diagram showing a state before connection, and FIG. 9 is a diagram showing a state after connection is completed. 8 and 9, the transceiver body is not shown, and only the transceiver sleeve used for connection with the connector 1 will be described.
[0034]
In the transceiver sleeve 100, for example, engagement pieces 100 a and 100 b having the same shape as the engagement pieces 10 a and 10 b of the sleeve 10 are provided on a disk portion 100 c having the same diameter as the sleeve 10 on the connector 1 side. However, the length L1 of the engagement pieces 100a, 100b of the transceiver sleeve 100 is slightly shorter than the length L2 of the sleeve 10 (L1 <L2). The thickness L3 of the disk portion 100c can be configured to be, for example, about 0.2 to 0.3 mm. A hole 100d through which light passes for transmitting and receiving data is formed in the disk portion 100c of the sleeve 100.
[0035]
Next, the connection operation between the connector 1 and the transceiver will be described.
[0036]
The disk portion 100 c of the transceiver sleeve 100 has the same diameter as the sleeve 10. Therefore, when the transceiver sleeve 100 and the sleeve 10 are connected, the engagement pieces 10a and 10b of the sleeve 10 are pushed by the disk portion 100c and retreat on the outer peripheral surface of the ferrule 8. At this time, the position of the ferrule 8 of the connector 1 is accurately positioned by the engagement pieces 100a and 100b of the transceiver sleeve 100. Then, the surface of the disk portion 100c and the tip of the ferrule 8 come into contact with each other while being accurately positioned. When the sleeve 10 is retracted, the second spring 11 is compressed first, and then the first spring 12 is compressed.
[0037]
After the surface of the disk portion 100c and the tip of the ferrule 8 come into contact with each other, when the connector 1 is further pushed in slightly from that position, the guide levers 7a and 7b fit into the recesses formed on the transceiver, and the case 6 Is fixed, and the connection between the connector 1 and the transceiver is terminated. Of course, the shape of the depression on the transceiver must be the same as the depressions 72a and 72b of the case 6.
[0038]
After the connection is completed, as shown in FIG. 9, the light emitting / receiving element 110 provided in the transceiver (not shown) is arranged on the disk portion 100c so as to be in contact therewith. Alternatively, the light emitting / receiving element 110 may be fixed to the disk portion 100c from the beginning. After the connection is completed, a gap having the same size as that when the connectors 1 are connected is formed between the stopper 6b and the flange 14a. Further, for example, the first spring 12 generates the same force on the end face 8 a of the ferrule 8 as when the connectors 1 are connected to each other.
[0039]
As shown in FIG. 10, in the conventional connector (the connector described in Patent Literature 1), a gap A is formed between the ferrule 2A and the light emitting / receiving element 110 by the amount of protrusion of the engaging piece convex portion 3A. I will. On the other hand, in the present embodiment, as described above, the thickness of the disk portion 100c of the transceiver sleeve 100 can be configured to be about 0.2 to 0.3 mm, so that the end face 8a of the ferrule 8 is less than 1 mm. The light-emitting / light-receiving element 110 designed on the premise of use in a close state can be used as it is.
[0040]
According to the present embodiment, the optical fiber connectors having the same shape can be directly connected to each other, and further, the tip of the sleeve 10 can be moved to the rear from the end face 8a of the ferrule 8, so that the light emission of the transceiver or the like can be achieved. -There is no restriction on the light receiving optical system. Thereby, a good connection state with the transceiver can be maintained. Also, when cleaning the tip of the ferrule, the tip of the sleeve 10 can be pushed backward from the end face 8a of the ferrule 8 to perform the cleaning operation.
[0041]
FIG. 11 is a perspective view showing a cable connector according to another embodiment. FIG. 12 is a front view of the cable connector, and FIGS. 14 and 15 are a sectional view taken along line AA and a sectional view taken along line BB shown in FIG. 12, respectively. Hereinafter, in FIGS. 14, 15, and 16, the left side in the figures is the front, and the right side in the figures is the rear. Note that components denoted by reference numerals in FIGS. 11 to 15 and not described below have the same functions and arrangements as the components in FIGS. 1 to 6.
[0042]
The cable connector 101 according to this embodiment has guide levers 107a and 107b as engaging bodies provided integrally with the case 106. In the present embodiment, as shown in FIG. 12, the width t of the guide levers 107a and 107b is formed wider than the width of the guide levers 7a and 7b in the above embodiment. In the present embodiment, the recesses 172a and 172b also have a width u such that the guide levers 107a and 107b of the mating connector having the width t can be fitted. The relationship between t and u is t = u. However, if the guide levers 107a and 107b are made of a material having elasticity or elasticity, they can be fitted into the recesses 172a and 172b even if t> u.
[0043]
In the present embodiment, the guide lever 107a is set so that the value of t + u is as close as possible to half the length along the outer periphery of the case 106 as viewed in a plane in the axial direction of the cable 109 (see FIG. 12). (Or 107b) and a recess 172a (or 172b). That is, the guide lever 107a (or 107b) and the concave portion 172a (or 172b) are formed so as to occupy a range of about 180 ° around the outer circumference of the case 106.
[0044]
The sleeve 210 is formed such that the engagement pieces 210a and 210b face the cylindrical base body 210c. As shown in FIGS. 12 and 14, the sleeve 210 is in a stationary state in which the base body 210c is in contact with the stopper 6c. The engagement pieces 210a and 210b are provided so as to be in the same direction as the direction in which the recesses 172a and 172b are arranged.
[0045]
FIG. 13 shows a modification of the connector 101 shown in FIG. In this example, the guide levers 107a and 107b are provided so as to be arranged in the same direction as the direction in which they are arranged. Even with such a configuration, connectors of exactly the same shape can be connected to each other.
[0046]
FIG. 16 is a cross-sectional view showing a state where the connection between the connectors 101 has been completed.
[0047]
Explaining the connection operation, first, the connectors 101 face each other. When the connectors 101 are brought closer to each other, the guide levers 107a and 107b enter the concave portions 172a and 172b on the other side, and the cases 106 are positioned.
[0048]
When it is further approached, the engagement pieces 210a and 210b of the sleeve 210 start to be fitted with the tip of the mating ferrule 108, so that the ferrules 8 are accurately positioned. As a result, the connection between the end faces 109a of the optical fiber cable 109 is accurately performed.
[0049]
When the ferrules 108 are further approached, the end faces 108a of the ferrules 108 contact each other, and the ferrules 108 move rearward against the urging force of the first spring 112. By such an operation, the optical fibers 109 are brought into close contact with each other, and transmission of optical data becomes possible.
[0050]
When the first spring 12 is further approached, the first spring 12 is compressed, and a gap starts to be formed between the stopper 106b and the flange 114a. The projections 171a, 171b of the guide levers 107a, 107b engage with the mating engagement projections 173a, 173b, and the connection operation ends.
[0051]
After the connection is completed, at least the end face 108a of the ferrule 108 and the end face 109a of the optical fiber cable 109 are covered with four guide levers, so that dust, dust and unexpected foreign substances can be prevented from entering through the gap. .
[0052]
Further, according to the present embodiment, similarly to the above-described embodiment, the optical fiber connectors having the same shape can be directly connected to each other, and further, the tip of the sleeve 210 can be moved backward from the end face 108a of the ferrule 108. With this configuration, there is no restriction on the light emitting / receiving optical system of the transceiver or the like. Thereby, a good connection state with the transceiver can be maintained. Also, when cleaning the ferrule tip, the tip of the sleeve 210 can be pushed backward from the end face 108a of the ferrule 108 to perform the cleaning operation.
[0053]
The present invention is not limited to the embodiments described above, and various modifications are possible. For example, the cable may be another electric cable instead of the optical fiber. Further, the external device is not limited to the transceiver, but may be a personal computer or an AV device.
[0054]
【The invention's effect】
As described above, according to the present invention, a connector can be easily connected to another device such as a transceiver. In addition, it is possible to easily clean the tip of the ferrule.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a cable connector according to an embodiment of the present invention.
FIG. 2 is a front view of the cable connector shown in FIG.
FIG. 3 is a modified example of the cable connector shown in FIG. 2;
FIG. 4 is a sectional view taken along line BB in FIG. 2;
FIG. 5 is a sectional view taken along the line AA in FIG. 2;
FIG. 6 is a perspective view of a sleeve according to one embodiment of the present invention.
FIG. 7 is a diagram illustrating a connection operation between connectors.
FIG. 8 is a view showing a state before connection between the connector and the transceiver sleeve.
FIG. 9 is a diagram showing a state after the connection between the connector and the transceiver sleeve is completed.
FIG. 10 is a diagram for explaining a conventional problem.
FIG. 11 is a perspective view showing a cable connector according to another embodiment of the present invention.
FIG. 12 is a front view of the cable connector shown in FIG. 11;
FIG. 13 is a modified example of the cable connector shown in FIG. 12;
14 is a sectional view taken along the line AA in FIG.
FIG. 15 is a sectional view taken along line BB in FIG.
FIG. 16 is a cross-sectional view showing a state where connection between connectors has been completed.
[Explanation of symbols]
1, 101 ... connector
6, 106… Case
6a, 106a ... opening
7a, 7b, 107a, 107b ... guide lever
8,108 ... ferrule
8a, 108a ... end face
9, 109… Optical fiber cable
9a, 109a ... end face
10, 210 ... sleeve
11, 111 ... second spring
12, 112 ... 1st spring
13,113 ... ferrule stopper
14, 114 ... ferrule support
71a, 71b, 171a, 171b ... projection
72a, 72b, 172a, 172b ... recess
73a, 73b, 173a, 173b ... engaging projection
100 ... Transceiver sleeve

Claims (6)

(A) having a first end surface and an outer peripheral surface,
A first holding member for holding a first cable capable of transmitting data having a second end face such that the first end face and the second end face are substantially the same;
(B) a main body having an opening at one end, the first end face protruding from the opening to house the first holding member;
A second cable integrally provided on the main body, having a third end face, and having the fourth end face and capable of transmitting the data, wherein the third end face and the fourth end face are substantially the same. A case having an engaging portion engageable with the same external connector as the cable connector including a second holding member for holding the cable so as to be a surface;
(C) having a tip end, slidably provided on an outer peripheral surface of the first holding member in an axial direction of the first cable, and at least a second end surface of the first cable and the second end surface of the first cable; In order to abut the fourth end surface of the second cable, a first end surface of the first holding member and a third end surface of the second holding member are brought into contact with each other to perform positioning. A cable connector, comprising: a positioning member. The cable connector according to claim 1, wherein:
The distal end of the first positioning member moves at least between a position on the external connector side engaged with the first end surface and a position on the same plane as the first end surface. A connector for supporting the first positioning member. The cable connector according to claim 1, wherein:
It further includes a first urging member attached to the main body and urging the first holding member toward the external connector in a state where the first holding member is engaged with the external connector by the engaging portion. Cable connector. The cable connector according to claim 2, wherein
The engagement portion is further engageable with an external device capable of transmitting and receiving the data,
The external device includes:
An element for transmitting and receiving the data,
A second positioning member that is provided so as to be engageable with the first positioning member and that positions the element so as to face the second end surface of the first cable;
The support portion includes a second biasing member that biases the first positioning member toward the external device while being engaged with the first positioning member and the second positioning member. A connector for a cable, comprising: The cable connector according to claim 4, wherein
When the first positioning member is engaged with the second positioning member, the support portion is configured such that, when the first positioning member is engaged with the second positioning member, the distal end is positioned on the same plane as the first end surface or the external device engaged therewith. A cable connector supporting the first positioning member so as to be arranged at an opposite position. The cable connector according to claim 4, wherein
The engagement portion includes:
A first engagement body that can be fitted into a second recess of the external connector;
A first recess in which a second engagement body for engaging with the cable connector of the external connector is fittable;
The length of the first engagement body and the first recess along the outer periphery of the case as viewed in plan in the axial direction of the cable is approximately half of the total length of the outer periphery. Cable connector characterized by the above-mentioned.

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