JP2565629Y2 - Separation tool for multi-core connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand tool for separating a multi-conductor connector for connecting a telephone line cable, and more particularly, to a multi-line connection in which both of a set of mated connectors are used. Not only can it be used for separating each connector when it consists of usable multi-pair connectors, but also when one is a multi-pair connector and the other is a combination of a predetermined number of one-pair connectors, The present invention relates to a common separation tool capable of separating a multi-pair holder that supports these one-pair connectors and engages with the multi-pair connectors from the multi-pair connectors.

[0002]

2. Description of the Related Art Conventionally, as a connector for connecting a telephone line cable, a connector having various logarithms for connecting a required number of lines has been used. This type of connector often separates and fits after the line cable is once connected, and is used for connecting various line cables by changing the mating side. It is more convenient that the connectors having the same structure can be fitted to each other than the connectors having the same. Such a connector having the same gender structure is disclosed in, for example,
No. 207061 and JP-A-63-207062. The connectors disclosed in these publications are provided with one of a pair of contacts for positive and negative currents for connecting one line in the form of a male contact and the other in the form of a female contact. , Both male contacts and female contacts are connected to form a single line contact pair.

[0003] In a connector having such a structure, in the case of a multi-fiber cable connector capable of connecting a large number of circuits collectively, a force of several tens of kilograms is generally required for fitting and separating the connectors. Hand tools for fitting and separating were used. A conventional separation hand tool of this type is shown in FIG. This hand tool is provided with a set of handles 1 curved substantially in an S shape, a set of jaws 2 attached to one end of each handle 1, and a floor surface 3 of each jaw 2. And a plurality of pins 4. One set of handles 1 is rotatably connected to each other by a joint 5 near the one end, and when the other end of the handle 1 is gripped (as indicated by a chain line in the figure), the one end is opened. Jaws 2 move in directions away from each other. The plurality of pins 4 on the floor 3 of the jaw 2 can be respectively fitted into a plurality of holes provided on the bottom surface of the above-mentioned multi-fiber-wire connector, and each of the pins 4 is inserted into these holes when the connector is separated. Are fitted, and the fitted set of connectors is placed on the jaws 2. And handle 1 with one hand
The connector is separated by grasping the other end of the connector.

[0004]

In the above separating tool, the connector pairs to be separated have the same structure, and the bottom surface of each connector is generally flat. The floor surfaces of the pair of jaws necessarily have a coplanar flat shape. However, there is a problem that the conventional multi-fiber cable connector affects the remaining other lines due to failure or repair of one of the lines. Is provided, but the above-mentioned conventional separation tool cannot be used in the new multi-core connector.

[0005] The above-mentioned novel multi-pair core connector has a predetermined number of pairs each having the same structure in the multi-pair connectors and a pair of them in addition to the mating between the multi-pair connectors having the same structure. This enables fitting with a connector. In this connector, when the multi-pair connector and the one-pair connector are fitted together, the fitting and the separation of the one-connector can be performed with a relatively small force of several kg, so that the mutual fitting is reliably maintained. Therefore, a multi-pair holder capable of engaging with the multi-pair connector while supporting a plurality of one-pair connectors is used for this purpose. As shown in FIG. 5 and FIG. 6, this multi-pair holder holds the back and bottom surfaces of each one-pair connector, and the latch portions provided at both end portions thereof correspond to the latch portions of the corresponding multi-pair connector. The engagement keeps the mating connection between the multi-pair connector and the one-pair connector. Since the multi-pair holder and the multi-pair connector are more firmly engaged with the latch portion in this way, a hand tool is also required to separate them, but as shown in the figure, the bottom of the multi-pair holder is a multi-pair. It necessarily projects from the bottom of the connector, so that conventional separating tools with flat jaws on the floor cannot be used.

The present invention is to improve the conventional separation tool to solve such a problem, and the purpose of the invention is to make a pair of mated connectors have many pairs. Not only can it be used to separate both when a connector is used, but one is a multi-pair connector and the other is a predetermined number of 1
An object of the present invention is to provide a common separation tool that can separate a multi-pair holder that supports the one-pair connector and engages with the multi-pair connector when the multi-pair connector is formed of a combination of the pair of connectors.

[0007]

In order to achieve the above object, a separation tool for a multi-fiber cable connector according to the present invention is provided.
A pair of handles, which are rotatably connected to each other, and in which an opening operation at one end and a closing operation at the other end are interlocked, and a multi-pair core connector connected to the one end of each of the handles. A plurality of jaws formed on at least one of a pair of jaws that can be held and moved in the mutual direction in conjunction with the operation of the handle, and a floor surface of the pair of jaws that abuts a bottom surface of the multi-fiber connector. A stepped floor surface composed of an upper step surface and a lower step surface that can abut against the bottom surfaces of the multi-pair connector and the holder of the twin-core connector, and the multi-pair formed by projecting on the floor surface of the pair of jaws. The jaw having the stepped floor surface engages with any one of the concave portions provided on each bottom surface of the connector and the holder, and has a shoulder portion which comes into contact with any one of the bottom surfaces of the multi-pair connector and the holder. Formed on the lower surface above A protrusion that is installed to be retractable into the hole, and is disposed in the hole in the lower step surface of the jaw having the stepped floor surface, and urges the protrusion to protrude from the lower step surface. A spring that is compressed when retracted.

According to a preferred embodiment of the present invention,
The protruding portion is a plurality of independent pins, and the pin disposed on the stepped floor has a small diameter at the tip end via the shoulder portion, and the hole in the lower step surface of the stepped floor is formed. Are provided as a plurality of independent holes each having the above-mentioned spring disposed therein.

[0009]

When the multi-core connector in which the multi-pair connectors are fitted to each other is mounted on a pair of jaws, the projections protruding from the floor of each jaw fit into the holes on the bottom surface of the multi-pair connector. At this time, the retractable protruding portion provided on the stepped floor is fitted into a hole in the bottom surface of the multi-connector with its shoulder in contact with the bottom surface of the multi-connector. Then, when the other end of the handle is grasped, the jaws move in a direction away from each other, and the multi-pair connectors are separated from each other.

When the multi-pair connector and the one-pair connector are fitted and the multi-pair core connector supported by the holder is mounted on a pair of jaws, the projections also protrude from the floor of each jaw. The retractable projection provided on the stepped floor surface on the side that holds the holder at this time fits into the hole on the bottom surface of the connector. It fits into the hole in the bottom surface and is drawn into this hole against the bias of the spring located in the hole in the lower step. In this state, grasp the other end of the handle and move each jaw,
The multi-pair connector and the holder are separated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. 1 and 2 are views showing a separation tool according to an embodiment of the present invention, and FIGS. 3 to 6 are views showing a multi-fiber connector for performing a separation operation using the separation tool.

As shown in FIG. 1, the separation tool 10 includes a pair of handles 12 that are curved in a substantially S-shape,
A pair of jaws 14 each attached to one end of the two,
A plurality of (five in this embodiment) pins 18 are provided to project from the floor 16 of each jaw 14, respectively. One set of handles 12 is rotatably connected to each other by a joint 20 near the one end, and when the grip 12a at the other end of the handle 12 is gripped, the one end is opened and one set of jaws 1 is opened.
4 move in directions away from each other. At one end of the handle 12, a set of support covers 24 that are pivotally mounted on the shafts 22 and 22 ′ so as to straddle the set of handles 12, respectively, are installed. The jaw 14 is fixed. Support cover 2
One of the two pivot holes 4 is formed in an elongated hole 25, so that when the grip 12a of the handle 12 is gripped and one end is opened, the pair of jaws 14 translates in a direction away from each other. In the drawing, reference numeral 26 denotes a grip cover of the handle 12, and reference numeral 28 denotes a spring that biases one end of each handle 12, that is, a pair of jaws 14 in a closed state.

The floor surface 16 of each jaw 14 has an upper step surface 1 extending parallel to each other via a step 16a extending in the longitudinal direction.
6b and a lower step surface 16c. The plurality of pins 18 disposed on the floor 16 of the jaw 14 are respectively inserted into a plurality of holes 30 formed in the lower surface 16c of the floor 16 of the jaw 14, as more clearly shown in FIG. It is slidably inserted and arranged. The hole 30 penetrates the floor 16 of the jaw 14 and communicates with a recess 34 of the lower cover 32 fixed to the lower side of the jaw 14. Pin 18
The retaining ring 3 protrudes below the jaw 14 at its proximal end.
6 is fixedly provided. A coil spring 38 is arranged in the concave portion 34 of the lower cover 32 in a compressed state between the bottom surface of the concave portion 34 and the retaining ring 36. Therefore pin 18
Usually protrudes from the floor 16 of the jaw 14 by a predetermined length due to the bias of the coil spring 38. The distal end side of the pin 18 is formed with a small-diameter distal end portion 18b via a shoulder portion 18a. During the normal projection, the shoulder portion 18a of the pin 18 is preferably the same as the upper step surface 16b of the floor surface 16 of the jaw 14. The pin 18 is disposed at the height, and the tip 18b of the pin 18 projects at least above the upper step surface 16b of the jaw 14 (see FIG. 2).

FIGS. 3 to 6 show a multi-core connector 40 using the separating tool 10 described above. The multi-fiber connection connector 40 is not limited to the mating between the multi-pair (for example, 10 pairs) connectors 42 having the same structure as shown in FIG.
And a predetermined number of one-to-one connectors 44 having the same structure in a pair of parts thereof as shown in FIG. This multi-core connector 4
0, when the multi-connector 42 and the one-connector 44 are fitted together, the multi-connector 42 is supported while supporting a predetermined number of the one-connectors 44 in order to reliably maintain the mutual fitting as described above. A multi-pair holder 46 that can be engaged with 42 is used. As shown in FIGS. 5 and 6, the multi-pair holder 46 supports the latches 48 of the multi-pair connector 42 corresponding to the latch portions 48 provided on both side ends thereof while supporting the back and bottom surfaces of the one-pair connector 44. By engaging with the part 50, a secure fit between the multi-pair connector 42 and the one-pair connector 44 is maintained. Therefore, when the multi-pair connectors 42 are fitted to each other and when the multi-pair connectors 42 and the one-pair connectors 44 are fitted, the bottom surfaces of the connectors 42 and 44 are necessarily arranged on the same plane. When 46 is used, its bottom surface 52 necessarily protrudes from the bottom surface 54 of the many connector 42 and the bottom surface of the one connector 44. Also,
As shown in FIGS. 4 and 6, the separation tool 1 is provided on the bottom surface 54 of the multi-pair connector 42 and the bottom surface 52 of the multi-pair holder 46.
Tip 18b of a plurality of pins 18 provided on the zero jaw 14
A plurality of holes 56 and 58 each having substantially the same diameter as the above are formed.

The operation of the separation tool 10 according to the embodiment of the present invention in separating the multi-core connector 40 will be described below. First, when separating the multiple connectors 42 from each other, the bottom surface 54 of each
The multi-connector 42 is mounted on the jaw 14 such that the pins 18 of each jaw 14 are fitted into the plurality of holes 56.
At this time, the bottom surface 48 of each multi-pair connector 42 is
The pin 18 abuts on the upper surface 16 b of the floor surface 16, and the tip 18 b of the pin 18 is fitted into the hole 56 while the pin 18 is in a normal protruding state.
In this state, when the grip 12a of the handle 12 is grasped with one hand, the engagement of the distal end portion 18b of the pin 18 with the hole 56 causes the multi-connector 42 to be separated.

Next, when separating the multi-pair connector 42 and the multi-pair holder 46 supported by the multi-pair connector 42 while supporting the one-pair connector 44, these connector assemblies must be separated from each other. The jaws 14 are mounted on the jaws 14 such that the pins 18 of the jaws 14 are fitted into the plurality of holes 56 and 58 of the bottom surfaces 54 and 52 of the mating connector 42 and the multi-pair holder 46, respectively. At this time, the bottom surface 54 of the multi-pair connector 42
Abuts on the upper surface 16b of the floor surface 16 of one jaw 14, and the bottom surface 52 of the multi-pair holder 46 is
The other jaw 14 abuts on the lower surface 16c of the floor 16 while pressing the 8a. Therefore, each pin 18 of the other jaw 14 is pressed by the bottom surface 52 of the multi-pair holder 46 and slides downward in each hole 30 of the floor surface 16 of the jaw 14 to oppose the bias of the coil spring 38. Of the lower cover 32
The shoulder 18a of the pin 18 and the lower surface 16c of the jaw 14 are arranged on the same plane. In this state, in any of the jaws 14, the tip 18b of each pin 18
Are fitted in the holes 56 and 58 of the bottom surfaces 54 and 52 of the multi-connector 42 and the multi-pair holder 46, respectively.
And the connector assembly comprising the multi-pair holder 46 and the jaw 1
4 while holding the grip 12 of the handle 12 with the other hand.
When the user grips a, the multi-pair connector 42 and the multi-pair holder 46 are easily separated.

The distal end 18b of the pin 18 is
The length is preferably shorter than the thickness of the bottom surface 52 of the multi-pair holder 46 so as not to interfere with the bottom surface of the mating connector 44. The depth of the concave portion 34 of the lower cover 32 fixed to the lower side of the jaw 14 is at least
The pin 18 needs to be dimensioned such that the pin 18 can be pulled in by the step difference between the upper step surface 16b and the lower step surface 16c of the floor surface 16 of FIG.

In the above embodiment, one set of jaws 14
In any case, the retractable pin 18 is provided on the lower surface 16c of the floor surface 16 so as to have a stepped structure. Therefore, the direction of the connector assembly does not matter at the time of separating work, that is, the arrangement direction of the multi-pair holder 46 is changed. There is an advantage that it is not necessary to change the separation tool 10 each time the separation tool 10 changes. However, except for this point, the present invention can be realized even if only one of the pair of jaws 14 has a stepped structure.

[0019]

According to the present invention, as described above, at least one of the floor surfaces of a pair of jaws holding the multi-fiber connection connector is provided on each of the multi-fiber connector and the holder. A stepped floor surface consisting of an upper step surface and a lower step surface that can be brought into contact with the bottom surface of the multi-connector and the jaw having the stepped floor surface. The protruding part is installed so as to be retractable into the hole formed on the lower step surface against the bias of the spring. The retractable protrusion on the surface is
The shoulder is fitted into the hole in the bottom surface of the multi-connector while being in contact with the bottom surface of the multi-connector, and the multi-connector and the one-connector are fitted to separate the multi-core wire connector supported by the holder. At this time, the retractable protrusions arranged on the stepped floor surface on the side holding the holder, the shoulders thereof are fitted into the holes on the holder bottom surface while being pressed against the bottom surface of the holder and pressed by the spring. In this configuration, the connection between the bottom surface of the connector assembly and the floor surface of each jaw is required for any of these multi-fiber-wire connector assemblies. The contact and the engagement between the hole on the bottom surface of the connector assembly and the projection on the floor surface of each jaw are reliably performed, and the work of separating the multi-fiber connector can be easily and reliably performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a separation tool according to an embodiment of the present invention;

FIG. 2 is an enlarged sectional view showing a jaw of the separation tool of FIG.

FIG. 3 is a perspective view showing the mating between the multi-pair connectors of the multi-core wire connector that can use the separation tool of the present invention.

FIG. 4 is a six-sided view of the multi-pair connector of FIG. 3;

FIG. 5 is a perspective view showing the fitting of a multi-pair connector, a one-pair connector, and a holder of the multi-core wire connector that can use the separation tool of the present invention.

FIG. 6 is a perspective view of the holder of FIG.

FIG. 7 is a three-sided view of a conventional separation tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 ... Handle 14 ... Jaws 16 ... Floor surface 16b ... Upper surface 16c ... Lower surface 18 ... Pin 18a ... Shoulder 18b ... Tip 30 ... Hole 38 ... Spring 42 ... Multi-pair connector 44 ... One-pair connector 46 ... Multi-pair Holders 52, 54 ... Bottom 56, 58 ... Hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Masanori Suezawa 3-8-8 Minamihashimoto, Sagamihara City, Kanagawa Prefecture Within Sumitomo 3M Limited (72) Inventor: Chiho Oike 3-8-8, Minamihashimoto, Sagamihara City, Kanagawa Prefecture Sumitomo Inside of 3M Co., Ltd. (72) Inventor Takafumi Sakaguchi 1-1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Yasuhiko Tanabe 1-1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Incorporated (72) Inventor Masahiro Suzuki 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Co., Ltd. (56) References JP-A 4-55791 (JP, U) JP-A 54-103591 (JP, U) Japanese Utility Model 63-106093 (JP, U) Japanese Utility Model 63-106092 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A set of mated connectors, one of which is a multi-pair connector for connecting a multi-line cable, and the other is a predetermined number of 1
A multi-fiber connector having a bottom surface overlapping with the bottom surface of the one-connector and having a holder for supporting the one-connector and engaging with the multi-connector; A separation tool for a multi-core cable connector capable of being separated from a holder, wherein the pair of handles are rotatably connected to each other, and a pair of handles in which an opening operation at one end and a closing operation at the other end are interlocked; A pair of jaws attached to the one end of each of the handles to hold the multi-fiber connection connector and move in the mutual direction in conjunction with the operation of the handle; A step formed on at least one of the floor surfaces of the pair of jaws abutting on the bottom surface, the step including an upper surface and a lower surface capable of abutting against the respective bottom surfaces of the multi-pair connector and the holder of the multi-conductor connector. The floor surface, A pair of jaws projecting from the floor of each jaw engage with one of the concave portions provided on the bottom surface of each of the multi-pair connector and the holder. A protruding portion having a shoulder abutting on any one of the bottom surfaces of the jaws having a shoulder formed on the lower step and being disposed in the hole of the lower step of the jaw having the stepped floor. A spring for urging the protruding portion to protrude from the lower step surface and being compressed when the protruding portion is retracted. 2. The stepped floor surface includes a plurality of independent pins, and the pins disposed on the stepped floor surface have a small diameter at the distal end via the shoulder portion. 2. The separation tool for a multi-fiber cable connector according to claim 1, wherein the holes formed in the lower step surface are formed in a plurality of independent holes each having the spring disposed therein.