JPH07335316A - Cable connector - Google Patents

Abstract

PURPOSE:To prevent damage on a receptacle and a plug caused when a cable connector is attached or detached by remote operation of a manipulator. CONSTITUTION:A cable connector 10 comprises a receptacle 12 and a plug 14 for fitting to the receptacle 12. The receptacle 12 is formed with a fixed casing 16 having a flange 28 and a shell 18 held by the fixed casing 16. The shell 18 is held slidably in the axial direction and neck-swingably on the inside of the fixed casing 16 by the engagement of an inner flange 34 having a roundness 38 at its tip installed inward at the tip of the fixed casing 16 and an engaging groove 40 with which the inner flange 34 of the fixed casing in the shell 18 slidably engages. A coil spring 44 is installed in the axial direction between the fixed casing 16 and the shell 18, and a plate spring 46 is installed in the radial directional space between the fixed casing 16 and the shell 18. The coil spring 44 and the plate spring 46, when the plug 14 is fit to the receptacle 12, moderates shock in the axial direction and in the radial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cable connector used for connecting cables, and more particularly to a cable connector suitable for being detached and attached by remote operation by a manipulator or the like.

[0002]

2. Description of the Related Art For example, in nuclear-related facilities that handle high-level radioactive substances, such as reprocessing facilities and factories, which are nuclear fuel cycle facilities, a very high radiation atmosphere (hereinafter referred to as cell Therefore, the operation and maintenance of the devices in the cell are performed by remote control using a manipulator or a crane.

Specifically, as shown in FIG. 9, the cell wall 5
The device 52 in the cell sealed by 6 is connected to the cable 24
Also, the cable connector 10 provided in the cell is remotely operated by a manipulator or the like through the cable box plug 58 provided in the cell wall 56 via the connector box 54 and electrically operated to the outside. By attaching and detaching the equipment, the equipment is converted, the system is changed, and maintenance is performed.

As shown in FIG. 10, such a cable connector generally comprises a receptacle 12 and a plug 14 fitted into the receptacle 12. Conventionally, the receptacle 12 has the plug 14 fitted therein. The shell 18 includes a shell 18 to be fitted therein, and a flange 28 for fixing the shell 18 to another supporting member 19 such as a cable connector or a plate with bolts or the like.
And the flange 28 were formed integrally or fixedly. In FIG. 10, reference numeral 14A indicates a manipulator grip portion provided on the plug 14 so that a manipulator (not shown) grips the plug 14.

[0005]

However, when the plug 14 is fitted into the receptacle 12, as is conventionally known, a guide pin (not shown) or a guide or the like provided on the shell 18 itself is used to remove the plug 14 from the plug 14. Although proper positioning is performed, there is a limit to the degree of freedom in operating the manipulator that fits the plug 14 into the receptacle 12,
Depending on the moving speed at the time of fitting the plug 14, not only an excessively large impact force may be applied to the receptacle 12, but also a slight error occurs in the movement of the plug 14.
When the plug 14 that should be originally fitted in the receptacle 12 on the same axis line is fitted at an angle with respect to the receptacle 12, a load may be applied to the receptacle 12 in a direction different from the proper direction. In this case, in the prior art, the shell 18 of the receptacle 12 is fixedly attached to the support member 19 and the like, and the receptacle 12 is integrally or fixedly formed, so that the force is directly received by the entire receptacle 12. However, there is a drawback that the receptacle 12 is damaged. On the other hand, the plug 14
However, there is a risk of damage if the fixed receptacle 12 is fitted from an improper position due to an impact at the time of fitting the receptacle 12 and despite a movement error.

In this way, the receptacle 12 and the plug 1
When 4 is damaged, there arises a problem that the electric circuit through the cable connector 10 cannot be used. Especially, in the cable connector 10 that requires remote control such as in a cell, the maintenance is easily performed. Because I can't
Once damaged, the problem becomes very large.

An object of the present invention is to avoid the above-mentioned drawbacks, and when the plug is fitted into the receptacle, absorb the movement error of the plug and the force applied to the receptacle due to the moving speed to prevent damage to the receptacle and the plug. It is an object of the present invention to provide a cable connector which can be prevented and does not require maintenance, and can sufficiently cope with a case where a remote operation is required.

[0008]

As a first means for solving the above problems, the present invention provides a cable connector comprising a receptacle and a plug fitted to the receptacle, wherein the receptacle is a fixed casing. The fixed casing comprises a shell held slidably in the axial direction and swingable, and shock absorbing means for relaxing the axial and radial shocks is provided between the fixed casing and the shell. The present invention provides a cable connector characterized in that

Further, the present invention relates to the above-mentioned first problem solving means, in particular, the shock absorbing means comprises a coil spring provided axially between the fixed casing and the shell, and a fixed casing and the shell. The present invention provides a cable connector comprising a leaf spring provided in a radial gap.

Further, the present invention is characterized in that, in the above-mentioned first problem solving means, in particular, the shock absorbing means comprises a bellows having a spring property provided between the fixed casing and the shell. A cable connector is provided.

Further, according to the present invention, in any one of the above-mentioned means for solving the problems, an inner flange portion which is provided inward at the tip of the fixed casing and has a rounded tip, and an inner flange portion of the fixed casing which is provided at the shell are provided. An engagement groove that slidably engages is further provided, and by engaging the inner flange portion and the engagement groove, the shell is slidably held in the fixed casing in the axial direction and swingable. The present invention provides a cable connector characterized in that

Further, the present invention provides a cable connector according to any one of the means for solving the above problems, wherein the plug is fitted into the receptacle by remote control by a manipulator.

[0013]

In this way, the receptacle is composed of the combination of the fixed casing and the shell, and the fixed casing holds the shell slidably in the axial direction and swingable, and at the same time, in the axial and radial directions. If shock absorbing means is provided to reduce the impact applied to the plug, the force applied to the receptacle due to the moving speed of the plug will not only be absorbed by the axial sliding of the shell and the axial shock absorbing means, but will also cause an error in the movement of the plug. Even if occurs, the shell shakes its head to welcome the plug from the proper direction, and the force applied in the radial direction of the receptacle that deviates from the axial direction can also be absorbed by the radial shock absorbing means. Damage can be prevented.

In particular, if a coil spring provided axially between the fixed casing and the shell and a leaf spring provided in the radial gap between the fixed casing and the shell are used as the shock absorbing means, Since the coil spring and the leaf spring of No. 2 have spring properties, it is possible to surely absorb the impact, and at the same time, to absorb the impact easily.

If a bellows having a spring property provided between the fixed casing and the shell is used as the shock absorbing means, the inside of the receptacle is kept airtight,
It is possible to reduce the impact applied in the axial direction and the radial direction.

Further, when the above-mentioned structure is applied to a cable connector in which a plug is fitted into a receptacle by remote operation by a manipulator, there is difficulty in maintenance of the cable connector, for example, in nuclear facilities.
In addition, since damage to the receptacle and the plug can be prevented in a place where work safety is required, easiness of maintenance and safety are ensured.

[0017]

Embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1 and 2A and 2B show a cable connector 10 of the present invention.
Consists of a receptacle 12 and a plug 14 that fits into the receptacle 12.

As shown in FIGS. 1, 2A and 3, the receptacle 12 is composed of a fixed casing 16 and a shell 18 held by the fixed casing 16. That is, the receptacle 12 is formed of a combination of two members, that is, a fixed casing 16 and a shell 18 that are physically separated and divided.

In the embodiment shown in FIGS. 1 to 3, the shell 18 has a cylindrical shape and has an insulator 20 inside.
It has a plurality of contact pins 22 which are held through and to which a cable 24 is connected. The contact pin 22
Is arranged so that its tip does not protrude forward of the front end face of the shell 18.

The fixed casing 16 is shown in FIGS. 1 and 2 (A).
Further, as shown in FIG. 3, it has a flange 28 and a cylindrical shell holding portion 30 extending from the flange 28.
As shown in FIG. 3, the fixed casing 16 has its flange 28 fixed to the mounting plate 32 of the connector box 54 (see FIG. 9) by bolts or the like,
The cable connector 10 is supported by another member such as the mounting plate 32. In addition, as shown in FIG.
As shown in FIG. 1, the shell 1 has an inner collar portion 34 at its tip.
The shell 18 is held by engaging the inner flange portion 34 with the outer peripheral surface of the shell 18 so as to cover 8 from the outside. Although FIG. 3 shows that the receptacle 12 is attached to the attachment plate 32 of the connector box 54 (see FIG. 9), it is attached to another support member or the flange 28 of another cable connector 10. May be.

The plug 14 corresponds to the receptacle 12 as shown in FIGS.
Has a substantially cylindrical casing 15 of a size that can be fitted into the casing 15. Inside the casing 15, there is a socket 26 held by an insulator 35 and connected to the cable 24. The same number is provided at positions facing the contact pins 22 provided in the shell 18 of the receptacle 12. Therefore, as shown in FIG. 1, the socket 26 is configured such that the cable 24 on the receptacle 12 side is inserted into the socket 26 by inserting the corresponding contact pin 22 on the receptacle 12 side.
It is electrically connected to the corresponding cable 24 on the side of the plug 14 connected to.

The contact pin 22 is inserted into the socket 26 as described above, and the plug 14 is inserted into the receptacle 1.
In the case where the plug 14 is fitted to the plug 14, the receptacle 12 may be provided with a plug guide means such as a guide (not shown) to guide the plug 14. Further, contrary to the embodiment of FIGS. 1 to 4, the socket 26 may be provided on the receptacle 12 side and the contact pin 22 may be provided on the plug 14 side. Further, as shown in FIG. 4, the casing 15 of the plug 14 has a curved portion 36 to hang the cable 24 downward, but the casing 15 may have a straight shape.

In the present invention, the shell 18 of the receptacle 12 is held by the fixed casing 16 so as to be slidable in the axial direction and swingable, as shown in FIGS. 1, 3, 5 and 6. Has been done. To explain this structure more specifically, as shown in FIG. 5, a rounded portion 38 is formed at the tip of the inner flange portion 34 provided inward at the tip of the fixed casing 16 described above. Shell 1
8, an engaging groove 40 is formed in which the inner flange portion 34 of the fixed casing 16 is slidably engaged. By the engagement of the inner flange portion 34 and the engaging groove 40, the shell 18 is It is held inside the fixed casing 16 so as to be slidable in the axial direction and swingable.

The engaging groove 40 is formed so as to make one round around the outer circumference of the shell 18 at an appropriate position in the axial direction of the shell 18, and the inner end of the engaging groove 40 has a rounded portion 38 correspondingly. The collar portion 34 is also engaged with the engagement groove 40 along the outer circumference of the shell 18. The rear shoulder portion 40a of the engaging groove 40 cooperates with the inner flange portion 34 to function as a retainer for the shell 18.

In this way, the inner flange 34 is rounded at the tip 38.
6A, the shell 18 can swing within the width of the engaging groove 40 and the shell 18 can swing in any radial direction. Become. For this reason, the contact pin 22 and the socket 26, which should originally be inserted on the coaxial line, move due to the movement error of the plug 14 to the socket 2 on the plug 14 side.
6 is inserted at an angle with respect to the contact pin 22 on the side of the receptacle 12 (the socket 26 on the side of the receptacle 12 and the contact pin 22 on the side of the plug 14).
, And vice versa), the insertion force at that time causes the shell 18 of the receptacle 12 on the receiving side.
Is automatically swung by the insertion force at that time, and the contact pin 22 and the socket 26 are adjusted to face each other at an appropriate position. In this case, the shell 18
7, it is formed on the outer peripheral surface of the shell holding portion 30 of the fixed casing 16 at intervals in the circumferential direction from the tip to the middle of the longitudinal direction so that the head can swing more easily. The slit 31 may be provided.

Further, since the inner collar portion 34 is engaged with the engagement groove 40, the shell 18 can be formed as shown in FIG. 6 (B).
Can slide in the axial direction of the cable connector 10 with respect to the fixed casing 16 within the range of the longitudinal width t (see FIG. 5) of the engagement groove 40. Therefore, when the plug 14 is fitted, the receptacle 12 is pushed by the inserted plug 14 at a moving speed so that the shell 18 can slide to the flange 28 side.

The cable connector 10 of the shell 18
Of the inner flange 34 is locked to the shoulder 40a of the engaging groove 40 so that the sliding of the latter in the axial direction is restricted. Therefore, the width between the shoulder portions 40a, that is, the width t of the engagement groove 40 in the longitudinal direction.
(See FIG. 5) is the degree of expansion and contraction of the coil spring 44, which will be described later
It is determined within an appropriate range in consideration of the distance between the rear end surface 18a of the shell 18 to which the coil spring 44 is attached and the spring receiving inner wall surface 28a of the flange 28. Further, the height of the shoulder portion 40a of the engagement groove 40 is appropriately set so that the inner collar portion 34 of the fixed casing 16 does not easily come off the engagement groove 40, and the height of the inner collar portion 34 is increased. The inner diameter of the inner collar portion 34 formed in a sheath shape is set. Furthermore, when the plug 14 is fitted into the receptacle 12, the plug 14
The plug 14 is designed such that the tip of the casing 15 does not project toward the flange 28 side beyond the shoulder portion 40a of the engaging groove 40 so that the tip of the casing 15 does not collide with the front end surface of the fixed casing 16.

Further, the cable connector 10 of the present invention is
In particular, as shown in FIGS. 1 and 3, there is further provided a shock absorbing means 42 which is provided between the fixed casing 16 and the shell 18 to absorb the shock in the axial direction and the radial direction.

In the illustrated embodiment, the shock absorbing means 42 is, as shown in FIGS. 1 and 3, a coil spring 4 provided axially between the fixed casing 16 and the shell 18.
4 and a leaf spring 46 provided in the radial gap between the fixed casing 16 and the shell 18 are shown.

More specifically, this coil spring 44 is
As shown in FIG. 1 and FIG. 3, it is formed by being wound in a coil shape with an inner diameter slightly smaller than the inner diameter of the shell holding portion 30 of the fixed casing 16, and the rear end surface 18 a of the shell 18 and the spring of the flange 28 of the fixed casing 16. It is attached between the receiving inner wall surface 28a. The coil spring 44 normally biases the shell 18 so that the shell 18 is located on the plug 14 side (rightward in the drawing). The rear end surface 18a of the shell 18 and the spring receiving inner wall surface 28a of the flange 28 ensure an area capable of sufficiently receiving the coil spring 44.

As shown in FIG. 1, the plug 14 is fitted to the receptacle 12 such that its casing 15 fits into the shell 18 of the receptacle 12 and the socket 26 fits into the contact pin 22. In this case, the coil spring 44, which is the shock absorbing means 42, receives the shell 18 pushed by the plug 14 and slid toward the flange 28 side, and absorbs the shock in the axial direction of the cable connector 10, thereby reducing the moving speed of the plug 14. Can be absorbed. Therefore, it is possible to prevent the receptacle 12 and the plug 14 from being damaged by the axial sliding of the shell 18 against the biasing force of the coil spring 44 and the shock absorbing action of the coil spring 44. . In this case,
The cable 24 connected to the contact pin 22 is
Since the contact pins 22 are arranged idle in the connector box 54 (see FIG. 9) and the contact pins 22 slide with the shell 18 toward the flange 28 side, the cables 24 are not damaged.

On the other hand, since the coil spring 44 urges the shell 18 toward the plug 14, the shell 18 is urged toward the plug 14 again after the plug 14 is fitted. The contact pressure between the socket 26 and the socket 26 increases, and the electrical connection can be sufficiently maintained. In addition,
The urging force of the coil spring 44 is the contact pin 2
The inner flange 34 of the fixed casing 16 engages with the rear shoulder 40a of the engaging groove 40 at least in a natural length by setting the electric connection between the socket 2 and the socket 26 sufficiently. It is preferable to set so as to be able to.

Further, more specifically, the leaf spring 46 is, as shown in FIGS. 1 and 3, on the outer peripheral surface of the portion of the shell 18 held in the shell holding portion 30 of the fixed casing 16. However, it is mounted in an annular spring receiving groove 48 formed on the flange 28 side with respect to the engaging groove 40. The leaf spring 46 has a substantially ring shape and can relieve a force applied in any radial direction of the receptacle 12, and normally, the shell 18 has the shell holding portion 30 of the fixed casing 16. The shell 18 is biased to be retained axially aligned therein.

Therefore, in the leaf spring 46 which is the shock absorbing means 42, an error occurs in the movement of the plug 14 and
When the socket 26 on the side is inserted at an angle with respect to the contact pin 22 on the side of the receptacle 12, the shell 18 that sways its head is received and the radial impact applied to the cable connector 10 is mitigated. The movement error of the plug 14 can be absorbed in combination with the swinging action of the shell 18. Therefore, it is possible to prevent the receptacle 12 and the plug 14 from being damaged by the swinging action of the shell 18 and the shock absorbing action of the plate spring 46 that are made against the biasing force of the plate spring 46.

On the other hand, the leaf spring 46 biases the shell 18 in the fixed casing 16 so that the shell 18 is aligned in the axial direction. Therefore, after the plug 14 is fitted, the shell 18 is shaken.
Are again held in the fixed casing 16 in axial alignment with the fixed casing 16. In this way, even if the shell 18 swings its head, the coil spring 44 for absorbing the impact in the axial direction has its both ends at the rear end surface 1 of the shell 18.
Since it is engaged with 8a and the like, it flexes and follows the swing of the shell 18. Further, since the leaf spring 46 is freely arranged in the spring receiving groove 48 provided in the shell 18, it can be displaced together with the shell 18 when the shell 18 slides in the axial direction.

As described above, the shock absorbing means 42 is the shell 1
8 along with axial sliding and swinging, plug 1
4 acts not only on the force applied to the receptacle 12 in either the axial direction or the radial direction due to the movement speed and the movement error, but also acts on the combined force as a whole to mitigate the impact. Also, the plug 14 is prevented from being damaged, and after the plug 14 is fitted, the receptacle 12 is restored to its original state to maintain the electrical connection of the cable 24.

Next, another embodiment of the present invention will be described with reference to FIG. 8. In this embodiment, the shock absorbing means 4 is used.
2 is shown to consist of a springy bellows 50 provided between the fixed casing 16 and the shell 18.

The bellows 50, as shown in FIG.
Both ends are fixed between the rear end surface 18a of the shell 18 and the spring bearing inner wall surface 28a of the flange 28 of the fixed casing 16. That is, this bellows 50
Since the inside of the receptacle 12 is kept airtight by this, the embodiment shown in FIG. 8 is suitable for the cable connector 10 that needs to be airtight in order to protect the inside of the receptacle 12 from radiation or the like.

In this embodiment, the bellows 50 are
The shell 18 contracts by sliding in the axial direction to mitigate the shock applied in the axial direction, and the shell 18 swings in the radial direction to mitigate the shock applied in the radial direction of the receptacle 12. Thus, damage to the receptacle 12 and the plug 14 is prevented. That is, in the embodiment shown in FIG. 8, the bellows 5 is used as the shock absorbing means.
Only 0 is used, and this bellows 50 absorbs the moving speed and the moving error of the plug 14 together with the sliding and swinging of the shell 18 in the axial direction.

Also, the bellows 50 normally biases the shell 18 so that the shell 18 is located on the plug 14 side, and the elastic force thereof causes the shell 18 to be axially aligned with the fixed casing 16. Since it is held, the plug 14 is held as in the embodiment shown in FIGS.
After mating, the bellows 50 allow the receptacle 1
2 restores the original state.

In the illustrated embodiment, the shock absorbing means 4
Although the coil spring 44, the leaf spring 46, or the bellows 50 is used as 2, the other means may be used as long as it has a cushioning effect and can reduce the impact when the plug 14 is fitted.

The cable connector 10 of the present invention is suitable for use as the one in which the plug 14 is fitted into the receptacle 12 by remote control by a manipulator (not shown).

Specifically, in nuclear facilities, etc.
As shown in FIG. 9, it is used to connect the cable 24 installed for the operation of the device 52 arranged in the cell,
The connector box 54 arranged in the cell and the cell wall 5
The flange 28 is fixed to a cable through plug 58 provided on the connector 6 by bolts or the like for use. This cable connector 10 is provided with the device 52 as in the general case.
Between the connector box 54 and the connector box 54, and between the connector box 54 and the cable through plug 58.
Is connected to electrically connect the device 52 in the cell to the outside, and the device 52 is remotely attached and detached by a manipulator (not shown) for conversion, system change, maintenance, etc. of the device 52. In this case, as shown in FIG. 4, the plug 14 is provided with a manipulator grip portion 14A for the manipulator to grip the plug 14.

As described above, according to the present invention, the plug 14 and the receptacle 12 are remotely operated by the manipulator.
When applied to the cable connector 10 that fits in, since it is difficult to maintain the cable connector 10 and it is possible to prevent damage to the receptacle 12 and the plug 14 in a place where work safety is required, It is easy to maintain and secure, and can be used effectively. Needless to say, the application is not limited to this, and even if it is applied to the cable connector 10 that is directly attached and detached by an operator or the like, damage to the receptacle 12 and the like can be prevented, which is advantageous.

[0045]

According to the present invention, as described above, the receptacle is composed of the combination of the fixed casing and the shell, and the fixed casing allows the shell to be slidable in the axial direction and swingable. Since the shock absorbing means is provided to reduce the shock applied to the axial direction and the radial direction at the same time, the force applied to the receptacle by the moving speed of the plug is slid in the axial direction of the shell and the shock absorbing means in the axial direction. Not only is absorbed by the shell, but even if an error occurs in the movement of the plug, the shell shakes its head to welcome the plug from the proper direction, and the force applied in the radial direction of the receptacle that deviates from the axial direction is also absorbed in the radial direction. Since it can be absorbed, there is a real advantage that damage to the receptacle and the plug can be prevented.

In particular, as the shock absorbing means, as described above, the coil spring provided in the axial direction between the fixed casing and the shell and the leaf spring provided in the radial gap between the fixed casing and the shell. Since the coil spring and the leaf spring are used, there is a practical advantage that the impact can be reliably and easily alleviated by the springiness of the coil spring and the leaf spring.

When it is necessary to keep the inside of the receptacle airtight, if a bellows having a spring property provided between the fixed casing and the shell is used as the shock absorbing means, the inside of the receptacle is kept airtight. While
There is a real benefit of being able to mitigate the impact applied in the axial direction and the radial direction.

Further, according to the present invention, since the above structure is applied to the cable connector in which the plug is fitted into the receptacle by the remote operation by the manipulator, the cable connector can be used, for example, in nuclear facilities. Since it is possible to prevent the receptacle and plug from being damaged in places where it is difficult to maintain and the safety of work is required, easiness of maintenance and safety are ensured, and remote operation is required. There is a real benefit that can be dealt with even in cases.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a cable connector of the present invention.

2A is a perspective view of a receptacle used in the present invention, and FIG. 2B is a perspective view of a plug used in the present invention.

FIG. 3 is a partially cutaway side view of a receptacle used in the present invention.

FIG. 4 is a partially cutaway side view of a plug used in the present invention.

FIG. 5 is an enlarged view of an engaging portion of a fixed casing used in the present invention with a shell.

FIG. 6 (A) is a diagram showing a state in which the shell used in the present invention shakes its head with respect to the fixed casing, and FIG. 6 (B) shows a state in which the shell is slid in the axial direction with respect to the fixed casing. FIG.

FIG. 7 is a schematic perspective view of a shell holding portion of a fixed casing in which slits are formed on the outer peripheral surface at intervals in the circumferential direction.

FIG. 8 is a partially cutaway side view of a receptacle used in another embodiment of the present invention.

FIG. 9 is a schematic view showing a usage state of the cable connector of the present invention.

FIG. 10 is a partially cutaway side view of a prior art cable connector. 10 Cable Connector 12 Receptacle 14 Plug 14A Manipulator Grip 15 Casing 16 Fixed Casing 18 Shell 18a Shell Rear End Surface 20 Insulator 22 Contact Pin 24 Cable 26 Socket 28 Flange 28a Flange Spring Inner Wall Surface 30 Shell Holding Part 31 Slit 32 Attachment Plate 34 Inner flange 35 Insulator 36 Curved part of plug 38 Roundness 40 Engaging groove 40a Side wall of engaging groove 42 Impact absorbing means 44 Coil spring 46 Leaf spring 48 Spring receiving groove 50 Bellows 52 Equipment 54 Connector box 56 Cell wall 58 Cable Through plug

Claims (5)

[Claims] 1. A cable connector comprising a receptacle and a plug fitted to the receptacle, wherein the receptacle comprises a fixed casing and a shell held by the fixed casing so as to be slidable in an axial direction and swingable. A cable connector characterized by comprising shock absorbing means for relaxing the axial and radial impacts between the fixed casing and the shell. 2. The cable connector according to claim 1, wherein the shock absorbing means is a coil spring axially provided between the fixed casing and the shell and a radial direction between the fixed casing and the shell. A cable connector comprising a leaf spring provided in a gap. 3. The cable connector according to claim 1, wherein the shock absorbing means comprises a bellows having a spring property provided between the fixed casing and the shell. 4. The cable connector according to any one of claims 1 to 3, wherein the fixed casing is provided inwardly at an end of the fixed casing, and an inner flange portion having a rounded end is provided at the shell. An engagement groove with which the inner flange portion of the fixed casing slidably engages is further provided, and the shell is axially inserted inside the fixed casing by the engagement of the inner flange portion and the engagement groove. A cable connector characterized by being held slidably and swingably. 5. The cable connector according to claim 1, wherein the plug is fitted to the receptacle by remote operation by a manipulator. .