JP5341480B2 - Coaxial cable connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To optimize for a cabinet in a narrow space or a neighboring apparatus, and for an apparatus to be housed in a place having a scarce gap adjacent to a sidewall or the like of a housing case. <P>SOLUTION: The minimum value of a protruding dimension L of a protrusion part 15a is formed to be nearly equal to a length L3 of a fixing ring 3. Moreover, the maximum value of the protruding dimension L of the protrusion part 15a is formed to be nearly equal to a length added of a reference length L1 formed to be nearly equal to the length L3 of the fixing ring 3 and upheaval part length L2. The protruding dimension L of the protrusion part 15a is formed to be nearly equal to the maximum value or to have a length within the prescribed range, and on condition that the fixing ring 3 is arranged and installed along an insertion fixing part 12, as for the protrusion part 15a, the tip part 18 of the body insertion part 15 is formed to have either a length to occupy nearly the same position as the opening end of the tip side of the fixing ring 3, or a length within the range of the length in which only the length L2 of the upheaval part 14 is protruded from the opening end of the tip side of the fixing ring 3. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

The present invention relates to a coaxial cable connector that is attached to an end of a coaxial cable when the coaxial cable is connected to a terminal of a device or the like.

Conventionally, as a coaxial cable connector to be attached to an end portion of a coaxial cable provided with a braided conductor and a conductive laminate foil covered on the inside thereof, a cylindrical shape inserted between the braided conductor and the laminate foil After the connector main body is inserted into the coaxial cable, the main body insertion portion is crimped and fixed after the connector main body, the connection cylinder formed to be pivotally attached to the base end portion of the connector main body and screwed to the external conductor to be connected There has been proposed a coaxial cable connector having a fixing ring and provided with a raised portion on the outer periphery in the vicinity of the distal end portion of the connector body.
According to the coaxial cable connector of this prior art embodiment, by providing a raised portion around the insertion tip portion of the connector body, the circumferential diameter around the raised portion is larger than the cylindrical diameter of the insertion portion to which the fixing ring is crimped. Therefore, as long as the retaining ring maintains its shape after crimping, it has good resistance to pulling out in the axial direction, and the coaxial cable does not come out of the connector body. A coaxial cable connector with good characteristics can be provided.
(See, for example, Patent Document 1, especially claim 4 and FIG. 6.)

In addition, with respect to the fixing ring shown in the above prior art, the outer circumference is made elliptical with respect to the inner circumference of the perfect circle, so that thin portions are formed at two opposing locations, and one of the thin portions is formed. A coaxial cable caulking ring is provided as a fixing ring provided with a pair of tool locking projections on both sides including a thin-walled portion. According to this fixing ring, it is possible to press the frame forcibly with a light operation, and it is possible to integrally fix the coaxial connector to the end of the coaxial cable with a uniform clamping force.
(For example, see Patent Document 2)

By the way, in terrestrial broadcasting, digital terrestrial broadcasting has been started, and simultaneous broadcasting is performed together with terrestrial analog broadcasting. And in July 2011, terrestrial analog broadcasting will end, and it will be completely shifted to terrestrial digital broadcasting. Therefore, in the new construction work, the system will be constructed in advance digitally, but the existing TV reception system such as buildings and condominiums that have already received terrestrial analog broadcasts may be digitally compatible depending on the system configuration. Renovation work is required to make it. In this refurbishment work, the direction of the UHF antenna is optimized, the booster is changed to one corresponding to the UHF band, or the direct-attached type joint receiving device that has poor shielding properties and is easily affected by jamming waves (for example, The system has been improved by changing the distributor, series unit, etc.) to a shielded F-type connector (receptacle) type joint receiving device, or replacing a coaxial cable with poor transmission characteristics. It is necessary for each. More specifically, with the change to the digital F-type connector (receptacle) type joint receiving device, there is no noise ingress or emission as shown in the embodiment of the prior art, in addition, There is a need for a plug-type F-type connector that can make a connection with excellent adhesion.

On the other hand, in the renovation work for such an existing TV joint reception system, generally in buildings and condominiums, old coaxial cables that have already been routed inside the buildings and walls are removed, and the characteristics are improved again. It is difficult to rewire a new coaxial cable. Therefore, in the digital renovation work for the existing system, it is necessary to confirm in advance whether the coaxial cable already wired has no problem in the transmission of the terrestrial digital broadcast signal. In that case, not only the transmission characteristics at 770 MHz, which is the wideband side of the UHF band, which is the transmission band of digital terrestrial broadcasting signals, but also the dip over the entire UHF band, such as whether there is a dip in which transmission loss abruptly increases due to aging of the coaxial cable. Confirmation is required.
In this way, when it is confirmed that there is no problem in the transmission characteristics of the coaxial cable, the repair work is performed by first removing the direct-attached type old equipment connected to the coaxial cable from the coaxial cable. Next, a portion of the end portion of the coaxial cable that has been stripped for direct attachment is cut out, and further, processing for an F-type connector (plug) that is newly attached to the cut surface of the coaxial cable. The procedure is to strip the dimensions again and attach the F-type connector (plug) to the end. When the installation of the F-type connector (plug) is thus completed, a newly prepared F-type connector (receptacle) type joint receiving device is connected to the F-type connector, and this device is stored in a predetermined place. The work will be completed by reworking.

However, these collective receiving devices are generally housed in a storage box installed on the rooftop, etc., in the case of a booster or distributor, and in the case of a series unit, a switch provided in the wall of each room. Since it is housed in a box, the above-described coaxial cable rework and equipment replacement work must be performed in a very limited space. In addition, the existing coaxial cable is processed with dimensions that do not allow the extra length to be too long in order to store the equipment in a narrow space or to effectively use the space. However, it is possible that a difficult situation will occur. In other words, in the repair work as described above, the end of the coaxial cable must be processed again, and the F-type connector (plug) must be easily attached to the end of the reprocessed coaxial cable. Even if it can be installed, it can be easily connected to the F-connector (receptacle) type joint receiving device to be re-installed, and this device can be easily installed in a narrow space while keeping the minimum bending radius of the coaxial cable. The current situation is that there are so many restrictions that it must be able to be stored.

Therefore, in preparation for the complete digital transition in 2011, in addition to responding to the construction of a digital-compatible reception system for newly-built buildings and condominiums that will begin in earnest, the existing reception system will be digitalized while clearing the above conditions. In digital renovation work to change to a compatible system, a large amount of installation and replacement work must be performed in a limited time. At least the coaxial cable connector used in this refurbishment work As shown in the form, there is no noise ingress or emission, and in addition to the conventional features such as excellent connection strength, in addition, in order to increase work efficiency, Not only can it be easily attached to a coaxial cable, it can also be easily attached to an F-type receptacle, and it is also a narrow space. Suitable for common receiving device F connector (receptacle) types to accommodate is desired.

JP 2001-297839 A JP-A-11-008021

However, according to the coaxial cable connector shown in the conventional embodiment, among the components of the coaxial connector, a cylindrical connector body, in particular, a body insertion portion that is inserted between the braided conductor and the laminate foil of the coaxial cable. As for the fixing ring, the fixing ring can be easily and lightly operated even with the conventional technology by providing a ridge on the entire circumference of the tip, and considering the formation and dimensions of the fixing ring. By ensuring that the cable can be securely clamped and fixed with a uniform clamping force, the coaxial cable is not easily pulled out of the connector body, but also has excellent electrical characteristics. I came. However, in these conventional embodiments, the shape and dimensions of the raised portion, the body insertion portion, and other portions have not been specially examined, and as a result, no clear optimization has been made. In this case, since it is not possible to expect further improvement in work efficiency, the coaxial cable connector as in the conventional embodiment, especially the digital refurbishment in which the time limit already described in detail is provided. When used for construction, the following problems are expected to occur.

For example, consider the shape of the ridge. As is well known, the raised portion is formed so as to gradually increase in diameter radially outward from the tip side of the raised portion toward the axially inner side of the raised portion. The insertion operation into the narrow space between the conductor and the laminate foil can be easily performed, and the pull-out force of the coaxial cable can be increased after the crimping and fixing with the fixing ring. For this reason, if the protruding dimension in the radial direction on the inner side in the axial direction of the raised portion is formed large, the fixing force is increased in combination with the presence of the fixing ring, and the pull-out resistance can be improved. However, if the projecting dimension is larger than necessary, the operation of inserting the main body insertion portion between the braided conductor of the coaxial cable and the laminate foil becomes difficult, and a very large force is required. In addition, if the length of the ridge is short in this situation, that is, if the rise of the ridge is steep, the insertion operation will be further difficult, and as a result, the man-hour for mounting will increase. Problem.
On the other hand, if the projecting dimension of the bulging part in the axial direction is small, the insertion operation of the main body insertion part becomes relatively easy, and it is convenient to install without requiring a large force. There may be a problem of decreasing.

Next, focus on the dimensions of the connector body, specifically the dimensions of the body insertion part, which is a component of the connector body, especially the projecting dimension of the projecting part projecting to the rear side (the side where the raised part is formed). First, if the projecting dimension is too long, the coaxial cable inner shaft will be bent if the bending process is performed while maintaining the minimum bending radius of the coaxial cable in order to route the coaxial cable connected to the equipment in a narrow space. Due to the presence of “long” protrusions inserted in the direction, the position of the beginning of bending of the coaxial cable is inevitably farther away from the connector, which is not affected by the “long” protrusions, in the axial rear direction, that is, further from the device It becomes a position. As a result, the coaxial cable cannot be bent from as short a position as possible immediately after the connector. For this reason, the space occupied by the coaxial cable formed around the equipment and the equipment is directly attached. It is possible that the space will be wider than the space that was formed.

In such a situation, a switch box having a very narrow space, for example, as defined by JIS C 8435 (Japanese Industrial Standard), for storing a series unit, where the space for storing equipment is narrow. In addition, considering the storage of a newly prepared digital-compatible series unit, the space occupied by the coaxial cable formed around the device and the device as described above is wide even if it is small. In addition, the extra length of the coaxial cable has been shortened due to rework, and it is considered that it is difficult to store and connect the coaxial cable.

For this reason, even if the series unit can be pushed into the switch box forcibly, the coaxial cable can be pushed into the coaxial cable by the pressure generated when the coaxial cable is sandwiched between the wall of the switch box and the device. There is a risk that stress is continuously applied to the connection portion between the cable and the F-type connector, and the connection portion between the connector and the coaxial cable cannot be maintained in a good connection state over a long period of time. Further, depending on the length of the extra length of the coaxial cable, even if it can be connected, the coaxial cable may be bent suddenly, resulting in deterioration of high-frequency transmission characteristics such as VSWR (Voltage Standing Wave Ratio). It is also possible.

On the other hand, consider the case where the protrusion of the main body insertion portion is shorter than the dimensions shown in the conventional embodiment. Contrary to the above example, the provision of “short” protrusions makes it easier to bend the coaxial cable from the immediate vicinity immediately after the connector, so that the space occupied by the coaxial cable formed around the device and the device is occupied. The effect of facilitating the storage of equipment in a narrow storage space and the connection with an extra length coaxial cable can be expected.

However, when the protrusion of the main body insertion portion is formed with a dimension shorter than the dimension shown in the conventional embodiment, the length of the fixing ring is as in the state shown in the conventional embodiment. , If it is formed to a size that does not overlap with the raised portion formed at the tip of the body insertion portion, the length of the fixing ring must inevitably be shorter than the size shown in the conventional embodiment, As a result, there is a risk that the force of crimping fixing by the fixing ring is weakened and the pull-out resistance is lowered, or the strength of the fixing ring itself is weakened and is damaged by a pressing operation using a tool.

Conversely, the protrusion of the main body insertion portion is formed with a dimension shorter than that shown in the conventional embodiment, and the length of the fixing ring is shown in the conventional embodiment. Considering the case of crimping and fixing the ridge and the fixing ring in a state where the ridge and the fixing ring are positively overlapped by forming the same length as the proven dimensions, the overlapping of the protrusion and the fixing ring excluding the ridge Since the portion is narrower than that of the conventional embodiment, depending on the formation size of the protruding portion, the force of crimping fixing by the fixing ring may be weakened, and the pull-out force may be reduced. In addition, if there are too few overlapping parts, when the coaxial cable is bent immediately after the connector, the urging force of the coaxial cable itself is applied to the connection part, which facilitates the connection part between the coaxial cable and the connector. Problems such as loss of reliability and loss of reliability can be considered.

Therefore, in the present application, in order to solve such problems, attention is paid to the formation size of the F-type connector (plug) as a coaxial cable connector, and the optimum size is examined.
An object of the present invention is to provide a coaxial cable connector suitable for being attached to an end of a coaxial cable.
Another object of the present invention is to provide a coaxial cable connector suitable for being attached to the end of a coaxial cable provided with a braided conductor and a conductive laminate foil covered inside the braided conductor covered with a protective coating. It is in.
Another object is to provide a coaxial cable connector that can be easily attached to the end of a coaxial cable.
Another object of the present invention is to provide a coaxial cable connector in which the length of the connector main body, in particular, the length of the main body insertion portion (projecting portion) to be inserted into the coaxial cable is optimized.
Another object is to provide a coaxial cable connector with excellent pull-out resistance of the coaxial cable.
Another object is to provide a coaxial cable connector that can reduce the space occupied by a coaxial cable physically formed around a device even if the coaxial cable is arbitrarily routed by connecting to the device to be connected. There is.
Another object of the present invention is to provide a coaxial cable connector with good mountability suitable for equipment stored in a narrow space.
Another object of the present invention is to provide a coaxial cable connector which can be connected with excellent adhesion, is suitable for equipment stored in a narrow space, and has excellent electrical characteristics with no noise entry or emission. It is in.
The purpose is to provide a coaxial cable connector suitable for renovation work to cope with terrestrial analog broadcasting to terrestrial digital broadcasting reception.
Other objects will become apparent from the following description and drawings.

The invention according to claim 1 is a coaxial cable connector attached to an end of a coaxial cable,
In order to insert between the braided conductor, which is the outer conductor of the coaxial cable, and the inner insulator, an insertion hole that penetrates from the tip portion to the base portion is provided inside, and a raised portion is formed on the outer periphery near the tip portion. A cylindrical main body insertion portion and a skirt-like extending from the base portion of the main body insertion portion in the circumferential direction so as to insert and fix a protective coating that is an external insulator of the coaxial cable and surround the end portion A cylindrical connector body comprising an insertion fastening portion configured in
A connecting cylinder pivotally attached to the base end of the connector body and screwed to an external conductor to be connected;
A coaxial cable connector comprising: a fixing ring that is externally fitted to an end of the coaxial cable, inserted into the coaxial cable and then deformed by a pressing operation, and the body insertion portion is fixed by crimping;
The fixing ring is formed to have a predetermined length that facilitates deformation by the pressing operation, and the connector main body includes an end of the skirt body at the insertion fixing portion and a shaft of the raised portion. The axial dimension formed by the raised end point on the inner side in the direction is formed so as to be substantially equal to the predetermined dimension of the fixing ring, or the connector body is formed at the insertion fastening portion. An axial dimension between the tip of the skirt body and the bulge end point in the bulge portion, and an axial direction between the tip of the skirt body in the insertion fixing portion and the bulge start point on the axially outer side of the bulge portion The dimension is formed so as to include a predetermined dimension of the fixing ring ,
In addition to the braided conductor, the coaxial cable includes a conductive laminate foil that is covered inside and covers the internal insulator, and the main body insertion portion of the connector body includes the braided conductor. Configured to be inserted between a conductor and the laminate foil;
The insertion hole of the main body insertion portion includes a first insertion hole having the first diameter at least on the distal end side of the main body insertion portion, and a second having the second diameter on the base portion side. The insertion holes are configured so that both insertion holes having two different inner diameters are sequentially arranged coaxially.
A first diameter of the first insertion hole is formed to be slightly larger than a diameter including a laminate foil provided so as to cover the internal insulator, and further, a second diameter of the second insertion hole is further increased. The diameter of the first insertion hole is slightly smaller than the first diameter of the first insertion hole, and the first insertion hole and the second insertion hole are formed continuously. It is characterized by being.

According to a second aspect of the present invention, in the coaxial cable connector according to the first aspect of the present invention, an F-type receptacle that is a connection target is formed on the inner peripheral surface of the connection tube from the front opening end toward the back in the axial direction. A receiving and introducing portion for receiving and introducing the tip portion and a female screw portion for screwing into a male screw formed on the F-type receptacle are sequentially arranged in a coaxial manner .

The invention according to claim 3 is the coaxial cable connector according to claim 1 or 2 , wherein the length of the fixing ring is approximately 5 mm, and the length of the raised portion is approximately 2.1 mm. Moreover, in the connector main body, the axial dimension formed by the tip end of the skirt body in the insertion fastening portion and the bulge end point on the axially inner side of the bulge portion is substantially equal to approximately 5 mm which is the length of the fixing ring. The connector body has an axial dimension between the tip of the skirt body in the insertion fastening portion and the raised end point in the raised portion; and The axial dimension between the tip of the skirt body at the insertion fastening portion and the bulge start point on the axially outer side of the bulge portion is formed to a length including 5 mm which is the length of the fixing ring . That And butterflies.

According to the coaxial cable connector of the present invention, the length of the fixing ring is formed to a predetermined dimension that facilitates deformation by the pressing operation, and the connector main body is a skirt body in the insertion fastening portion. The axial dimension formed by the tip end of the raised portion and the raised end point in the axially inner side of the raised portion is formed to have a length substantially equal to the predetermined dimension of the fixing ring, or the connector body Are the axial dimensions between the tip of the skirt body in the insertion fastening part and the bulge end point in the ridge part, and the bulge on the axially outer side of the tip of the skirt body and the ridge part in the insertion fastening part. An axial dimension between the start point and the start ring is formed to a length that includes a predetermined dimension of the fixing ring .
For this reason, the length of the main body insertion portion, and hence the connector main body, is optimized, and even if the main body insertion portion is shorter than the conventional length, the length of the fixed ring formed by the predetermined dimension is used. The coaxial cable connector can be firmly fixed to the coaxial cable without impairing the reliability equivalent to that of the prior art only by the clamping force and the presence of the raised portion.

Moreover, compared to the conventional case of having a “long” projection of the main body insertion portion that has not been optimized, the “short” projection of the main body insertion portion has been optimized as in the present application. As a result, the bending process of the coaxial cable can be performed from a position near the rear in the axial direction immediately after the connector, so that the space occupied by the device to be connected and the coaxial cable formed in the periphery of the device is small. As a result, it can be expected to have the effect of facilitating storage in an extremely narrow storage space, such as a switch box, so that it is necessary to store it in a space that has only a small storage space. It is possible to provide a particularly suitable coaxial cable connector.

In addition, equipment that is directly connected to this coaxial cable using a coaxial cable that is not too long and can be stored in a narrow storage space, such as digital refurbishment, When changing to a compatible F-type connector (receptacle) type device, cut off the end of the coaxial cable that has been stripped for direct mounting, rework the new end, and create a “short” protrusion. Even if the extra length of the coaxial cable is shortened by attaching the connector of the present application with a section, the coaxial cable can be bent in the immediate vicinity of the connector. As a result, it can be expected that the device and the extra length coaxial cable can be easily accommodated in a narrow storage space. That.

Furthermore, even in the coaxial cable connector of the embodiment of the present application having such effects, the handling method is not different from the coaxial cable connector of the conventional embodiment.
Does not interfere with user work procedures.

Further, in the coaxial cable connector of the present invention, the insertion hole of the main body insertion portion includes at least a first insertion hole having the first diameter on the distal end side of the main body insertion portion and the original portion side. The second insertion hole having the second diameter is configured such that both insertion holes having two different inner diameter dimensions are sequentially arranged in a coaxial manner, and the second insertion hole having the second diameter is arranged in the first insertion hole. The diameter of 1 is formed to be slightly larger than the diameter including the laminated foil provided so as to cover the internal insulator, and the second diameter of the second insertion hole is the first insertion The first insertion hole and the second insertion hole are formed so as to be slightly smaller than the first diameter of the hole .
For this reason, the internal insulator covered with the laminate foil can be easily inserted into the first insertion hole provided on the distal end side of the main body insertion portion. The operation of inserting the portion between the braided conductor and the laminate foil can be facilitated. In addition, since the first insertion hole and the second insertion hole are formed so that the inner peripheral surface thereof is continuous, the internal insulator covered with the laminate foil is sequentially rotated from the first insertion hole. Since it can be easily reached and inserted into the second insertion hole having the second diameter slightly smaller than the first diameter, the inner diameter is guided to the back in the direction, There is no particular difficulty in the insertion operation .

Further, since the second diameter of the second insertion hole is formed to be slightly smaller than the first diameter of the first insertion hole, the user only performs the operation of installing the coaxial cable. In addition to the contact between the laminate foil and the inner surface of the first insertion hole, the laminate foil provided so as to cover the internal insulator is further pressed by the inner surface of the second insertion hole without special consciousness. As a result, the connection between the laminated foil and the inner surface of the second insertion hole, and hence the connector body, is made good and reliable. As a result, the coaxial has excellent electrical characteristics without noise entry or emission. A cable connector can be provided.

According to the coaxial cable connector according to claim 2 , the front end of the F-type receptacle to be connected is received and introduced into the inner peripheral surface of the connection tube from the front opening end toward the back in the axial direction. Since the introduction portion and the female screw portion for screwing into the male screw formed on the F-type receptacle are sequentially arranged coaxially, they are connected to the F-type connector (receptacle) to be connected. Man-hours can be reduced.
That is, in order to connect the coaxial cable connector of the present application to the F-type connector (receptacle) to be connected, first, the front end portion of the receptacle with respect to the receiving introduction portion formed on the front side of the opening end of the connecting tube. It is only necessary to press the connector so that is inserted.
That is, in the coaxial cable connector of the present application, since the female screw is not formed on the inner peripheral surface of the receiving introduction portion, the female screw portion formed continuously from the receiving introduction portion is formed on the inner surface of the coaxial cable connector. It can be inserted with a simple insertion operation until it abuts against the male screw formed on the outer peripheral surface. Then, after the female screw and the male screw come into contact with each other, the connecting tube may be rotated so that the female screw and the male screw are screwed together. Since it can be completed, the connector connection time can be reduced.

In addition, by performing a simple insertion operation first, the coaxial cable connector can be mounted with the coaxial cable connector axis line substantially aligned with the receptacle axis line. In comparison, the coaxial cable connector opening end surface and the front end surface of the receptacle are aligned so that the thread formed from the opening end surface of the coaxial cable connector and the thread formed on the end surface of the receptacle do not mesh well. Therefore, the transition to the rotation operation performed following the insertion operation can be made very good, and in this respect also, the efficiency of the connection work can be improved.

According to the coaxial cable connector of claim 3, the length of the fixing ring is approximately 5 mm, the length of the raised portion is approximately 2.1 mm, and the connector main body includes the insertion fastening The length in the axial direction formed by the tip of the skirt body in the portion and the bulging end point on the axially inner side of the bulging portion is formed to a length that is substantially equal to about 5 mm that is the length of the fixing ring. Or the connector body includes an axial dimension between a tip end of the skirt body in the insertion fastening portion and the bulge termination point in the raised portion, a tip end of the skirt body in the insertion fastening portion, and the The axial dimension between the bulging start point on the axially outer side of the bulging portion is formed so as to include 5 mm which is the length of the fixing ring .
Accordingly, the optimum dimension of the connector body is approximately 5 mm in the axial dimension formed by the tip of the skirt body in the insertion fixing portion and the bulging end point in the axial direction inside of the bulging portion (the protruding dimension of the protruding portion is approximately 7. mm). 1 mm), or the axial dimension formed by the tip end of the skirt body at the insertion fastening portion and the bulging end point at the axially inner side of the bulging portion is a minimum of 2.9 mm (the projecting dimension of the projecting portion is 5 mm) The axial dimension formed by the tip of the skirt body at the insertion fixing part and the bulging start point on the inner side in the axial direction of the bulging part is a maximum of 5 mm (the projecting dimension of the projecting part is 7.1 mm). It is formed so that it may become the length.
A coaxial cable connector having a connector body optimized for such dimensions maintains the effects (pullout resistance and shielding properties) of the conventional coaxial cable connector, and is further mounted on the coaxial cable. Thus, it is possible to provide a coaxial cable connector having extremely excellent convenience, in which various performances such as an attachment property to an F-type receptacle, a shielding performance, and an attachment property for housing a joint receiving device in a particularly narrow place are improved.

As mentioned above, according to the form of the invention of the present application, by optimizing the shape and dimensions of the connector main body, it is possible to achieve particularly excellent effects on the mounting property to the coaxial cable as described above and the mounting property to the F-type receptacle to be connected. Even if it is a coaxial cable connector having such an effect, its handling method is not different from the coaxial cable connector of the conventional embodiment so as not to disturb the user's work procedure. So, in order to make the digital transition in 2011, not only support the construction work of the digital reception system for new buildings and condominiums, but also to make the existing terrestrial analog broadcast reception system digitally compatible. In the digital renovation work in Japan, a large amount of collaboration was made on existing TV reception systems scattered throughout the country. In situations where the receiving device must be replaced in a limited time, the work efficiency in this digital repair work can be greatly improved, and as a result, a coaxial cable connector that can contribute to society is provided. It can be done.

Hereinafter, an example of an embodiment embodying the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic side view of a coaxial cable connector according to an embodiment of the prior art, and FIG. 1A is a schematic side view showing a protrusion of a connector main body, the length of a fixing ring, and the positional relationship of the mounting. (B) is the schematic sectional drawing which fractured partially. FIG. 2 is a schematic view of the coaxial cable connector according to the first embodiment of the present application, and FIG. 2A is a schematic side view showing the protruding portion of the connector body, the length of the fixing ring, and the positional relationship of the mounting. (B) is a schematic sectional drawing. FIG. 3 is a schematic view showing the length of the projection and the fixing ring of the connector main body constituting the coaxial cable connector according to the second embodiment of the present application, and the positional relationship of the mounting. FIG. (B) shows the case where the protrusion has an intermediate dimension, and (c) shows the case where the protrusion has the maximum dimension. FIG. 4 is a list of measured dimensions of the connector main body of the coaxial cable connector according to the embodiment of the present application and the coaxial cable connector according to the embodiment of the prior art. FIG. 5 is a schematic sectional view in which a coaxial cable is attached to the coaxial cable connector according to the embodiment of the present invention, and a part thereof is broken. FIG. 5A is a schematic diagram before connection to an F-type connector (receptacle). FIGS. 4A and 4B are schematic views of a state in which an insertion operation is performed on an F-type connector (receptacle), and FIG. 4C is a schematic view of a state in which the F-type connector (receptacle) is screwed. FIG. 6 is a perspective view schematically showing a state in which the television terminal housed in the switch box is attached, as seen from the upper front side. FIG. 7 is a view of the mounting state of the TV joint receiving device in which the switch box is broken along the line XX in FIG. 6 and is housed in the switch box, as viewed from the back side. It is a schematic diagram at the time of using a coaxial cable connector, (b) is a schematic diagram at the time of using the coaxial cable connector concerning the conventional embodiment.
In the following description, when the direction and position of the coaxial cable connector are indicated, the right side when the coaxial cable connector is placed in the state shown in FIG. Yes, the left side is shown as the front side.

The difference between the configuration of the coaxial cable connector according to the first embodiment of the present application and the configuration of the prior art will be described with reference to FIGS. 1 and 2. In this figure, FIG. 1 is a schematic view of a coaxial cable connector 100 according to an embodiment of the prior art, and FIG. 1 (a) shows the length of the protruding portion 15a of the connector body 30 and the fixing ring 3 and the positional relationship of the mounting. It is a schematic side view shown. (B) is the schematic sectional drawing which fractured partially. FIG. 2 is a schematic view of the coaxial cable connector according to the first embodiment of the present application. FIG. 2A is a schematic side view showing the length of the protruding portion 15a of the connector main body 30 and the fixing ring 3 and the positional relationship of the mounting. Yes, (b) is a schematic cross-sectional view.
In the following description, in the embodiment of the prior art and the embodiment of the present application, the same reference numerals are assigned to the same components except those that require special explanation.

A coaxial cable connector according to the embodiment of the prior art is indicated by 100 in FIG. 1, and a coaxial cable connector according to the embodiment of the present application is indicated by 1 in FIG. All the coaxial cable connectors are provided so as to cover the inner insulator 5 with the braided conductor 7 and the inner insulator 5 of the coaxial cable 20 described later in FIG. In order to be inserted between the conductive laminate foil 6, the insertion hole 11 that penetrates from the tip portion 18 to the base portion 19 is provided inside, and the raised portion 14 is formed on the entire circumference in the vicinity of the tip portion 18. A thin and cylindrical main body insertion portion 15 and a skirt-like shape extending from the base portion 19 of the main body insertion portion 15 in the circumferential direction, and the protective coating 8 of the coaxial cable 20 is inserted and fastened. An insertion fastening portion 12 configured to surround the cylindrical connector body 30;
A connecting cylinder 2 pivotally attached to the base end portion 32 of the connector body 30 and formed so as to be screwed into an outer conductor of an F-type receptacle to be connected;
A fixing ring 3 that is externally fitted to an end portion of the coaxial cable 20 and is deformed by a pressing operation after the connector main body 30 is inserted into the coaxial cable 20, and the main body insertion portion 15 is fixed by crimping. It is configured.

Here, each component of the coaxial cable connector will be described in more detail. First, the main body insertion portion 15 constituting the connector main body 30 will be described.
This main body insertion part 15 is comprised from electrically conductive materials, such as a cylindrical metal body, which has the insertion hole 11 which has the internal diameter d penetrated from the front-end | tip part 18 to the base part 19 inside. And from the base part 19 located in the front side to the raised part 14 provided in the front-end | tip part 18, it forms so that a surrounding surface may reduce in diameter gradually and may become thin. Similarly, the raised portion 14 extends so as to slightly protrude outward in the circumferential direction from the circumferential surface of the main body insertion portion 15, and is raised from the axially inner side of the raised portion 14 (hereinafter referred to as a raised end point 14 b). In the embodiment of the present application, it is formed so as to converge while gradually reducing its diameter toward the distal end side of the portion 14 (hereinafter referred to as a bulging start point 14a), that is, in the embodiment of the present application. .
As shown in FIG. 2, the main body insertion portion 15 in the embodiment of the present application has at least the insertion hole 11 formed in the main body insertion portion 15 at the distal end portion 18 side of the main body insertion portion 15. The difference between the first insertion hole 11a having the first diameter d1 and the second insertion hole 11b having the second diameter d2 on the side of the base portion 19 has at least two different inner diameters. It differs from the main body insertion part 15 in embodiment of a prior art by the point comprised so that an insertion hole may be arranged in a line coaxially sequentially.
The first insertion hole 11a has a first diameter d1 that is slightly larger than the diameter including the laminated foil provided to cover the inner insulator of the coaxial cable. The second diameter d2 of the second insertion hole 11b is formed to be slightly smaller than the first diameter d1 of the first insertion hole 11a, and the second insertion hole 11b and the first insertion hole 11a The second insertion hole 11b is formed so that the inner surface is continuous.

The insertion fastening portion 12 has a through hole 12d at the center thereof, is provided in the circumferential direction from the through hole 12d, and is a fastening body 12c for inserting and fastening the protective coating 8 of the coaxial cable 20. The skirt body 12b is formed so as to protrude from the peripheral edge of the body 12c toward the front end side in the axial direction and surrounds the end portion of the coaxial cable. Yes.

And while inserting the said main body insertion part 15 with respect to the said through-hole 12d formed in this insertion fixing part 12, the insertion fixing part 12 is a back side site | part of the base part 19 of the said main body insertion part 15 In 19a, it fixes so that the center axis | shaft of the said insertion hole 11 and the center axis | shaft of the through-hole 12d may correspond with well-known methods, such as press injection. In this way, the connector main body 30 is constituted by the main body insertion portion 15 and the insertion fastening portion 12.
Further, the connector main body 30 configured in this manner is directed radially outward by folding or cutting the front end of the base portion 19 of the main body insertion portion 15 over the entire circumference. A protruding folded side 19b is provided. As a result, a proximal end groove 31 into which the connecting tube 2 is fitted is formed around the proximal end portion 32 on the front side of the connector body 30 by the folded side 19b and the fastening body 12c.

The connection tube 2 is made of a conductive material such as a metal body like the connector main body 30, and at least the inner peripheral surface thereof is screwed into a male screw formed on the F-type receptacle to be connected. For this purpose, a female screw portion 2a is formed.
In the connection cylinder 2 according to the embodiment of the present application, as shown well in FIG. 2, the inner peripheral surface of the connection cylinder 2 is screwed into a male screw formed in the F-type receptacle. In addition to the female screw portion 2a, the outer diameter of the tip portion for receiving and introducing the tip portion of the F-type receptacle to be connected toward the rear side in the axial direction from the front opening end 2c of the connecting tube 2 A receiving introduction portion 2b having a slightly larger inner diameter is provided, and the receiving introduction portion 2b and the female screw portion 2a are provided so as to be coaxially arranged in sequence, in the embodiment of the prior art. Different from the connecting tube 2.
In addition, a narrowed portion 21 is formed at the opening end on the rear side of the connecting tube 2 so that the open end is woven inward along the entire circumference. The connecting tube 2 is connected to the connector main body 30 with the narrowed portion 21. The base end grooves 31 are pivotally attached with their central axes aligned while being brought into contact with each other while being engaged with each other.

Next, the fixing ring 3 will be described. The fixing ring 3 should be determined not only to facilitate deformation by a pressing operation with a tool, but also to maintain the pull-out force of the coaxial cable after crimping at a predetermined level or more in view of its mounting method. I must. Therefore, the fixing ring 3 in the present application has the same reliability (that is, easy to deform) as the fixing ring 3 itself is the same as the conventional technology (in other words, a fixing ring made of a shape or material already used in the market). In addition, even if it is deformed, it will not be damaged such as cracks, etc. In addition, it will maintain its state after deformation, etc., and the work of attaching the fixing ring 3 to the coaxial cable will hinder the user's work procedure. The configuration is the same as that of the fixing ring 3 of the prior art so that there is no change from the coaxial cable connector mounting procedure of the conventional embodiment, such as no need for special tools. In other words, the coaxial cable connector 1 according to the embodiment of the present application adopts the same shape and material as the conventional fixing ring having a proven record, and after fixing the fixing ring to the coaxial cable in the normal operation procedure, It is possible to maintain a fixing force equivalent to (that is, an actual value, not a reference value that is a minimum required value for the fixing force). In the following description of the coaxial cable connector 1 according to the embodiment of the present application, the description has been made based on an example in which the fixing ring shown in Patent Document 1 is used. Needless to say, a fixed ring may be used. In any case, if attention is paid to the length, in particular, the specific dimension is about 5 mm. In the following description, the length of the fixing ring is described as L3.

Next, the connector main body 30 of the coaxial cable connector will be further described with reference to FIGS. Since the general configuration of the connector main body 30 has already been described, the difference between the present application and the prior art will be described in detail, focusing on the dimensions of the connector main body 30 of the present application and the prior art. FIG. 1 is a side view of a conventional coaxial cable connector 100, and FIG. 2 is a side view of the coaxial cable connector 1 of the present application. FIG. 3 is a schematic diagram showing the length of the connector main body 30 and the fixing ring 3 constituting the coaxial cable connector 1 according to the second embodiment of the present application, and the positional relationship of the mounting. FIG. (B) shows the case where the connector body has an intermediate dimension, and (c) shows the case where the connector body has the maximum dimension. FIG. 4 summarizes the measured dimensions of the connector main body of the coaxial cable connector according to the embodiment of the present application and the conventional coaxial cable connector in a list.

As already described, the coaxial cable connector 1 according to the embodiment of the present application and the coaxial cable connector 100 according to the embodiment of the prior art have basically the same configuration, but the difference between the two is largely different. Specifically, the length of the connector main body 30. Specifically, the length L1 (hereinafter referred to as the reference length) of the axial end 12a and the raised end point 14b of the skirt body 12b provided in the insertion fastening portion 12 constituting the connector main body 30. And a length L2 (in other words, the length of the raised portion 14; the length of the raised portion 14; hereinafter referred to as the raised portion) between the raised end point 14b and the raised start point (in the embodiment shown in the figure, the tip 18 of the main body insertion portion) 14b. It is called a general manager.) That is, in particular, the dimension L (= reference length L1 + protrusion portion length L2, below) of the protruding portion 15a protruding rearward from the insertion fastening portion 12, which is a portion to be crimped by the fixing ring 3 in the main body insertion portion 15. In other words, the dimensions of the connector main body 30 are different between the embodiment of the present invention and the embodiment of the prior art.

First, the protrusion dimension L of the protrusion 15a according to the embodiment of the prior art will be described. Embodiments of the prior art are shown in FIGS. 1 (a) and 1 (b). According to this figure, the reference length L1 of the prior art is formed such that L1> L3 with respect to the length L3 of the fixing ring 3, and therefore, the distal end side from the insertion fastening portion 12 is formed. The projecting dimension L of the projecting portion 15a of the prior art projecting backward is added to the raised portion 14 when the fixing ring 3 is disposed along the insertion fastening portion 12 as shown in FIG. A part of the cylinder on the rear side of the main body insertion portion 15 is formed in such a length that it projects to the outer side on the tip side from the fixing ring 3.
That is, the connector main body 30 according to the embodiment of the prior art is formed so as to have the “long” protrusion 15 a in relation to the length of the fixing ring 3.
For reference, FIG. 4 shows measured dimensions of each part of the coaxial cable connector composed of four types of prior art owned by the applicant. As can be seen from this table, the minimum length of the protrusion dimension L of the protrusion 15a of the prior art is as shown in Example A, while the protrusion dimension L = 8 mm (L1 = 6) with respect to the length L3 = 5 mm of the fixing ring. .5 mm, L2 = 1.5 mm), and the maximum length is as shown in Example D, with respect to the length L3 = 5.5 mm of the fixing ring, the protruding dimension L = 8.86 mm (L1 = 6.86 mm). , L2 = 2 mm).

Next, the protrusion dimension L of the protrusion part 15a of 1st Embodiment of this application is demonstrated using FIG. A broken line in FIG. 2A indicates the position of the fixing ring 3 when the fixing ring 3 is arranged along the insertion fixing body 12. As shown in FIGS. 2A and 2B, the reference length L1 of the first embodiment of the present application is L1≈L3 with respect to the length L3 of the fixing ring, and the reference length of the first embodiment of the present application is shown. L1 is formed to have a length that is substantially equal to the length L3 of the fixing ring. In this case, the projecting dimension L of the projecting portion 15a of the first embodiment of the present application is such that the fixing ring 3 is disposed along the insertion fastening portion 12 as shown by the broken line in FIG. The dimensional relationship is such that only the length L <b> 2 of the raised portion 14 protrudes outward from the fixing ring 3 toward the distal end side.
Here, the first embodiment of the present application will be described using specific dimensions. As shown well in FIG. 4, when the length L3 of the fixing ring is approximately 5 mm and the raised portion length L2 is approximately 2.1 mm, the protrusion dimension L (= L1 + L2) of the protrusion 15a of the first embodiment of the present application. ) ≈7.1 mm. In this embodiment, since the reference length L1 is substantially equal to the length L3 of the fixing ring 3, the reference length L1 (= L−L2) of the first embodiment of the present application is approximately 5 mm which is substantially equal to the length L3 of the fixing ring. It is formed to become. In the first embodiment of the present application, the reference length L1 is configured to be approximately 5 mm which is substantially equal to the length L3 of the fixing ring. However, the fixing ring 3 is inserted as shown by a broken line in FIG. The reference length L1 is larger than the length L3 of the fixing ring so that the fixing ring 3 fits just between the insertion fixing portion 12 and the raised portion 14 under the condition of being arranged along the fixing portion 12. It may be slightly longer. This example is shown as a prototype in the table of FIG.
Thus, the connector main body 30 of the first embodiment of the present application is “shorter” than the connector main body of the prior art in relation to the length of the fixing ring 3 and is optimized to a predetermined length. 15a is formed.

Next, the dimension L of the protrusion 15a of the second embodiment of the present application will be described with reference to FIGS. 3 (a), 3 (b), and 3 (c). In this embodiment, the protrusion dimension L is formed to have a length in a predetermined range. In addition, in order to make the explanation according to FIG. 3 easy to understand, the fixing ring 3 is indicated by a broken line when the fixing ring 3 is arranged along the insertion fixing body 12.
According to the drawing shown in FIG. 3A, the reference length L1 of the second embodiment of the present application is L1 <L3 with respect to the length L3 of the fixing ring, and the raised portion length L2 is set to the reference length L1. The projecting dimension of the added projecting portion 15a is formed such that L = L3. That is, this dimension is the minimum value of the protrusion dimension L of the protrusion 15a of the second embodiment of the present application.
Further, according to the drawing shown in FIG. 3B, the reference length L1 of the second embodiment of the present application is L1 <L3 with respect to the length L3 of the fixing ring, and the protruding dimension of the protruding portion 15a. Is formed so that L> L3. That is, this dimension indicates that the length of the protruding portion 15a is formed so that the position of the rear side end face of the fixing ring 3 is located in any one of the range of the length of the raised portion 14.
Further, according to the drawing shown in FIG. 3C, the reference length L1 of the second embodiment of the present application is L1 = L3 with respect to the length L3 of the fixing ring, and the protruding dimension of the protruding portion 15a. Since L = L1 + L2, this dimension indicates that it is the maximum value of the protruding dimension L of the second embodiment of the present application.

From these facts, with respect to the connector main body 30 in the second embodiment of the present application, the relationship between the reference length L1 and the length of the fixing ring L3, and the relationship between the protruding dimension L and the length of the fixing ring L3 can be expressed by a formula. ≦ fixed ring length L3, and protrusion dimension L (= L1 + L2) ≧ fixed ring length L3. That is, the reference length L1 (that is, the axial dimension between the tip of the skirt body 12a in the insertion fastening portion 12 and the raised end point 14b in the raised portion 14) and the reference length L1. The dimension of the protruding portion 15a obtained by adding the protruding portion length L2 to the dimension (ie, between the tip of the skirt body 12a in the insertion fixing portion 12 and the protruding start point 14a on the outer side in the axial direction of the protruding portion 14) The axial dimension of the fixing ring 3 is formed to have a length including the predetermined dimension L3 of the fixing ring 3.
Here, the second embodiment of the present application will be described using specific dimensions shown in FIG. Also in this embodiment, since the length L3 of the fixing ring 3 is about 5 mm, and the raised portion length L2 is about 2.1 mm, the minimum value of the protrusion dimension L of the protrusion 15a is as shown in FIG. , Approximately 5 mm, which is equal to the length L3 of the fixing ring 3, and the maximum value of the protruding dimension L is approximately 7.1 mm which is equal to the length L3 of the fixing ring 3 plus the raised portion length L2. As a result, the minimum dimension of the reference length L1 is 2, 9 (L3-L2) mm, and the maximum dimension of the reference length L1 is 5 mm (L1 = L3).

That is, as can be seen from FIG. 4, which is a comparison data between the embodiment of the present invention and the embodiment of the prior art, the protrusion dimension L (approximately 7.1 mm) of the protrusion 15a of the first embodiment of the present application is the prior art. The protrusion 15a is shorter than the protrusion dimension L by 0.9 to 1.76 mm.
Further, when compared with the protrusion dimension L (5 to 7.1 mm) of the protrusion 15a of the second embodiment of the present application, the protrusion dimension L of the protrusion 15a of the prior art is a dimension that is shorter by 0.9 to 3.86 mm. Is formed. As can be clearly understood from this result, the connector main body 30 according to the embodiment of the present application is a fixed body having the same length as that of the conventional technique compared to the conventional technique having a “long” protrusion in relation to the length of the fixing ring 3. It is formed with “short” protrusions that are optimized in relation to the ring 3.

The details of the configuration and dimensions of the coaxial cable connector have been described so far. In the following, along with the specific dimensions of each part other than the length of the connector body 30 already described in detail, the configuration of the present application configured as described above will be described. A procedure for attaching the coaxial cable connector 1 to the coaxial cable will be described with reference to FIG. In this figure, reference numeral 20 denotes a coaxial cable, in which a core wire 4 as an internal conductor, a braided conductor 7 as an external conductor, and an internal insulator 5 provided therebetween are covered with a protective coating 8 as an external insulator. This is a laminated coaxial cable that covers the coaxial cable of the covered structure with the aluminum laminate foil 6 covering the outer peripheral surface of the inner insulator 5, and shields by adding the aluminum laminate foil 6 to the braided conductor 7 that is the outer conductor. The effect is enhanced.
The aluminum laminated foil 6 can be replaced with an aluminum pipe having a better shielding effect and moisture resistance. Although an example using a coaxial cable provided with the aluminum laminate foil 6 is shown here, the coaxial cable connector according to the embodiment of the present application is not particularly described, but is also attached to the coaxial cable without the aluminum laminate foil 6. This is possible and is not limited to use only for laminated coaxial cables.

In mounting, first, the coaxial cable 20 is inserted into the fixing ring 3, and the distal end portion 18 of the main body insertion portion 15 constituting the connector main body 30 is peeled off from the end portion of the coaxial cable 20 that is cut off according to the connector main body 30. Insert and insert between the aluminum laminate foil 6 and the braided conductor 7.
In this insertion operation, the internal insulator 5 covered with the aluminum laminate foil 6 is inserted into the insertion hole 11 formed in the connector main body 30, but as already described, in the embodiment of the present application. The insertion hole 11 includes at least a first insertion hole 11a having a first diameter d1 on the distal end portion 18 side of the main body insertion portion 15 and a second diameter d2 on the base portion 19 side of the main body insertion portion 15. The second insertion hole 11b has two insertion holes having different inner diameters, which are sequentially arranged coaxially, and the first insertion hole 11a includes a first insertion hole 11a. The diameter d1 is formed to be slightly larger than the diameter including the internal insulator 5 and the laminate foil 6 provided so as to cover the insulator (d1 = approximately 5.2 mm in the embodiment of the present application). The end of the coaxial cable 20 Against insertion operation not only can be easily performed, since the size of small differences, may be mounted while contacting conduction and laminate foil 6 and the connector body.

In addition, as described above, the raised portion 14 in the embodiment of the present application has an axial dimension from the raised start point 14a to the raised end point 14b, that is, the length of the raised portion 14 is approximately 2.1 mm. Moreover, the outer peripheral surface of the raised portion 14 is formed so as to gradually increase in diameter from the raised start point 14a toward the raised end point 14b with an inclination of an angle θ = approximately 7.8 °, thereby inserting the main body. The structure is such that less force is required to insert the portion 15 between the aluminum laminate foil 6 and the braided conductor 7. That is, the coaxial cable connector 1 according to the embodiment of the present application can be inserted into the coaxial cable 20 by optimizing the length and inclination of the raised portion 14 in addition to the presence of the “short” protruding portion that is a feature of the present application. It is even easier.
For reference, an example of the dimension L2 of the raised portion 14 of the prior art coaxial cable connector 100 owned by the applicant is shown in the table of FIG. According to Example A having the shortest ridge length L2 among these, the length L2 of the ridge portion 14 is approximately 1.5 mm, and the outer peripheral surface of the ridge portion 14 is not shown in the table. The raised portion 14 of the conventional example A is formed in such a manner as to gradually increase in diameter from the start point 14a toward the raised end point 14b with an inclination of an angle θ of about 12.9 °. It can be seen that it is formed to have a dimension shorter than the length (L2 = 2.1 mm) of the raised portion 14 in the form of FIG. As a result, the conventional coaxial cable connector 100 is configured to require a considerable force to insert the main body insertion portion 15 between the aluminum laminate foil 6 and the braided conductor 7. In addition, the presence of the “long” protrusion makes the insertion operation into the coaxial cable 20 more difficult.

When the insertion operation is continued, the internal insulator 5 covered with the laminate foil 6 is sequentially guided from the first insertion hole 11a to the back in the axial direction and reaches the second insertion hole 11b. The second diameter d2 of the second insertion hole 11b is slightly smaller than the first diameter 11d of the first insertion hole 11a (d2 = approximately 5.1 mm in the embodiment of the present application). The inner insulator 5 covered with the laminate foil 6 is formed by forming the first insertion hole 11a and the second insertion hole 11b so that their inner peripheral surfaces are continuous. , Since the inner diameter can be easily inserted into the second insertion hole 11b formed with the second diameter d2 slightly smaller than the first diameter d1, even if the inner diameter is narrow, the insertion operation can be performed. There is no particular difficulty.
Furthermore, the second diameter d2 of the second insertion hole 11b is formed to be slightly smaller than the first diameter d1 of the first insertion hole 11a, thereby covering the inner insulator 5. The provided laminate foil 6 is positively reduced in diameter and pressed by the inner surface of the second insertion hole 11b, and the laminate foil 6 and the inner surface of the second insertion hole 11b, further, the connector body 30 and The electrical connection of the cable is made better and more reliable, and the user has excellent electrical characteristics with no noise ingress or emission by simple operation of installing the coaxial cable without any special awareness. Can be installed in the state.
When the coaxial cable 20 reaches the fastening portion 12c of the insertion fastening portion 12, the insertion is terminated.

Here, the peripheral surface of the skirt body 12b formed at the outermost edge of the insertion fastening portion 12 is knurled, for example, as a slip stopper, or the shape thereof is made oval or has a two-surface width. May be. With this configuration, the coaxial connector can be reliably fixed using a fingertip, a tool, or the like when the coaxial cable is inserted.
Further, the core wire 4 of the coaxial cable 20 is pierced into the connection tube 2 and used as the central conductor of the connector. Although not shown in the figure, a contact pin formed of a metal body or the like may be used as a central conductor by covering and contacting the core wire 4 of the coaxial cable 20, and in this case, a coaxial cable is usually used. Since it is possible to use a core wire material that is less likely to bend than the mild steel single wire used, durability against repeated insertion and extraction with the connection object is further increased.

Next, the fixing ring 3 inserted in advance through the coaxial cable 20 is disposed along the tip 12a of the skirt body 12b of the insertion fixing portion 12 constituting the coaxial cable connector 1, and the fixing ring 3 is inserted into the main body. The braided conductor 7 and the connector main body 30 are brought into contact with each other by using the elasticity of the protective coating 8 by pressing from the outside of the protective coating 8 at the portion 15 to complete the mounting. The length of the fixing ring 3 is not only easy to be deformed by such a pressing operation, but also the length of the connector body of the coaxial cable connector so that the drawing force of the coaxial cable after crimping can be kept above a predetermined value. It is formed with a predetermined dimension L3 (for example, 5 mm in the embodiment of the present application) corresponding to the protrusion dimension L of 30 and the diameter thereof is crimped by forming it with a large diameter with respect to the coaxial cable. That's fine.

As described above, according to the coaxial cable connector 1 of the embodiment of the present application, the main body insertion portion 15 and the connector main body 30 are configured to have the length and shape as described above, so that the coaxial cable 20 is attached to the coaxial cable 20. A coaxial cable connector with extremely good performance can be realized. Further, the installation procedure for the coaxial cable 20 is not different from the coaxial cable connector of the conventional embodiment, so that the user does not need a special tool and does not hinder the work procedure. Furthermore, even if the protrusion dimension L in the main body insertion portion 15 is formed shorter than the conventional length, the length is optimized in relation to the length L3 of the fixing ring 3, so that, for example, the same predetermined dimension as in the conventional technique is obtained. The coaxial cable connector 1 is connected to the coaxial cable 20 with a holding force (actual value) equivalent to that of the prior art, with only the holding force of the crimping and fixing by the fixing ring 3 formed at the length L3 and the presence of the raised portion 14. On the other hand, it can be firmly fixed without impairing reliability.

Up to this point, the mounting property of the coaxial cable connector 1 according to the embodiment of the present application to the coaxial cable 20 has been described. Next, the connection target of the coaxial cable connector 1 will be described with reference to FIGS. A procedure for connecting to the F-type receptacle will be described. FIG. 5 is a schematic cross-sectional view of the coaxial cable connector 1 according to the embodiment of the present invention, in which a part of the coaxial cable 20 is attached, and FIG. 5A is connected to an F-type connector (receptacle). FIG. 5B is a schematic diagram of a state in which an insertion operation is performed on an F-type connector (receptacle), and FIG. 10C is a schematic diagram of a state in which the F-type connector (receptacle) is screwed. In FIG. 5, reference numeral 10 denotes an F-type receptacle to be connected.

The connection procedure of the coaxial cable connector 1 in the embodiment of the present application is composed of two operations as well shown in FIG. That is, as shown in FIG. 5A, when the core 4 of the coaxial cable connector 1 and the central axis of the F-type receptacle 10 to be connected are substantially aligned, the coaxial cable connector 1 is moved to the arrow shown in FIG. As shown in FIG. 5 (b), the distal end portion 10b of the F-type receptacle 10 is inserted into the receiving introduction portion 2b formed on the front opening end 2c side of the connecting tube 2 in the A direction. The insertion operation is performed until the female screw portion 2a of the tube 2 and the male screw 10a formed on the peripheral surface of the F-type receptacle come into contact with each other. If the female screw portion 2a and the male screw 10a come into contact with each other, the female connecting portion 2a and the male screw 10a are then screwed by rotating the connecting tube 2 in the direction of arrow B in FIG. Then, as shown in FIG. 5C, the connection is completed by performing the screwing operation until the front end surface of the base end portion 32 of the connector body 30 and the front end surface of the F-type receptacle come into contact with each other.

That is, the coaxial cable connector 1 according to the embodiment of the present application includes the receiving introduction portion 2b in which the female screw portion 2a is not formed on the front side of the connecting tube 2, and therefore, the connection to the F-type receptacle 10 to be connected. In the work, the connector 1 is pushed in until the female screw portion 2a formed on the inner surface of the connecting tube 2 continues to the receiving introduction portion 2b comes into contact with the male screw 10a located at the tip portion 10b of the F-type receptacle 10. The connecting tube 2 can be rotated so that the female screw portion 2a and the male screw 10a are screwed together after the female screw portion 2a and the male screw 10a are brought into contact with each other. The connection can be completed with fewer rotational operations than the coaxial cable connector 100 in the embodiment of the prior art, and the number of man-hours for the connection work by the rotational operation of the connection tube 2 can be reduced. That.

In addition, the coaxial cable connector 1 can be mounted with the axis of the coaxial cable connector 1 and the axis of the F-type receptacle 10 substantially aligned by performing a simple insertion operation first. Compared with the prior art in which the introduction portion 12b is not provided, the coaxial cable connector 1 is aligned with the opening end face 12c of the coaxial cable connector 1 and the tip end face of the F-type receptacle 10, and the female screw formed from the opening end face of the coaxial cable connector 1 The thread formed on the end face of the F-type receptacle does not mesh well, and the transition to the rotation operation performed following the insertion operation can be made extremely good. In this respect as well, the efficiency of the connection work The coaxial cable connector 1 with excellent connectivity to the F-type receptacle 10 can be provided. That.

Up to this point, an example of a specific configuration of the coaxial cable connector 1 according to the embodiment of the present application will be described. With this configuration, the coaxial cable connector 1 of the present application can be attached to the coaxial cable 20 and the F-type receptacle can be used. The operation effect of improving the connectivity with the connector 10 has been described. Next, the main purpose of the coaxial cable connector 1 of the present application, such as a narrow place, a housing of an adjacent device, a side wall of a storage case, and the like are close to each other. It will be described that the coaxial cable connector 1 of the present application is suitable for a device housed in a place having only a small gap.
One of the major elements for meeting these conditions is bending of a coaxial cable with a coaxial cable connector attached. In the following description, by paying particular attention to the bending process of the coaxial cable, in the coaxial cable connector 1 according to the embodiment of the present application, the length L3 of the fixing ring 3 and the protrusion of the protrusion 15a of the main body insertion portion 15 are described. The reason why the relative dimension already described in detail with respect to the dimension L and the operation thereof are specifically described with reference to FIGS. 6 and 7.

FIG. 6 is a perspective view schematically showing a state in which the TV joint receiving device housed in the switch box is attached, as seen from the front upper side. FIG. 7 is a view of the mounting state of the TV joint receiving device in which the switch box is broken along the line XX in FIG. 6 and is housed in the switch box, as viewed from the back side. It is a schematic diagram when the coaxial cable connector 1 is used, and (b) is a schematic diagram when the coaxial cable connector 100 according to the conventional embodiment is used.
In this figure, reference numeral 51 denotes a television terminal as an example of a television joint receiving device. In the embodiment of the present application, it is one branch provided with an input terminal 51a, an output terminal 51b, and a branch terminal 51c. The housing of the television terminal 51 is formed of a metal material such as aluminum die casting, and the housing and the input terminal 51a, the output terminal 51b, and the branch terminal 51c are integrally formed to form a casing having excellent shielding performance. Is configured. The television terminal 51 configured in this manner is sandwiched and held at a predetermined position of a mounting frame formed of a resin material indicated by 52 in the drawing.
As shown well in the figure, the input terminal 51a of the TV terminal 51 is provided with a coaxial cable 20a that is drawn from the upper side of the building (upper side of the drawing) and has the coaxial cable connector 1 or 100 attached to the end thereof. A coaxial cable 20b is connected to the terminal 51b. The coaxial cable 20b is drawn from the lower side of the building (lower side of the drawing) and the coaxial cable connector 1 or 100 is attached to the end portion.

When the connection between the television terminal 51 and the coaxial cables 20a and 20b is completed in this way, the switch box 55 is attached to the frame 56 of the switch box 55 with the mounting screws 53 and 53 from the front side (front side in FIG. 6). The switch box 55 shown in this figure schematically shows the shape defined by JIS C8435 (Japanese Industrial Standard). For example, a synthetic resin material is used to form a frame around the periphery of the bottom surface 57. By integrally providing the body 56, the front side is opened, and a box having an accommodation space inside is formed. The switch box configured as described above is normally used by being embedded in a wall of a building or the like. For simplicity of explanation, the wall surfaces of buildings and the like are omitted in FIGS.

Here, let us consider the influence of the protruding dimension L of the protruding portion 15a in the main body insertion portion 15 of the coaxial cable connector connected to the television terminal 51 housed in the switch box 55.
First, the protrusion 15a is too long. If an attempt is made to perform bending while maintaining the minimum bending radius of the coaxial cable 20, the position of the beginning of bending of the coaxial cable 20 is inevitably caused by the presence of the "long" protrusion 15a inserted in the axial direction inside the coaxial cable 20. This is a position away from the connector in the axial direction rearward direction, i.e., a position further away from the television terminal 51, without the influence of the "long" protrusion 15a. As a result, the coaxial cable 20 cannot begin to bend from the shortest possible position immediately after the connector, and the space occupied by the coaxial cable formed around the device and the device is increased even slightly. For this reason, depending on the projecting direction, dimensions, and installation position of the F-type receptacle, there is a case where the television terminal 51 cannot be stored in the switch box 55 due to superposition by the frame body 56 or the bottom surface 57 of the switch box 55. It is done.

FIG. 7B schematically shows the attachment state at this time. In this figure, the coaxial cable connector attached to the coaxial cables 20a and 20b is the coaxial cable connector 100 of the conventional embodiment, and the main body insertion portion 15 has a “long” protruding portion (in other words, the length is optimized). The projecting portion is not formed). In this figure, when the coaxial cable 20b connected to the output terminal 51b of the TV terminal 51 is bent at the minimum bending radius r, the mounting frame 52 assembled with the TV terminal 51 is housed in the switch box 55. The outer peripheral surface of the protective covering 8 of the coaxial cable 20 accommodates mounting screws 53 and 53 for fixing the mounting frame 52 to the switch box 55, in particular, the inner wall of the frame 56 of the switch box 55. A state is shown in which the upper and lower sides of the body 56 are in contact with the inner wall (the portion indicated by arrow C in the drawing) of the recess 56a provided so as to protrude toward the center. That is, in the worst case, the coaxial cable 20b depends on the projecting dimension L of the "long" projecting portion 15a of the coaxial cable connector, the outer diameter dimension of the housing of the TV terminal 51, the projecting dimension of the F-type receptacle 10, or the like. It is conceivable that the recess 56 a and the bottom surface 57 of the frame body 56 overlap with each other, and the television terminal 51 cannot be stored in the switch box 55. In addition, if the housing is forced to be stored in this state, it is necessary to bend it with a radius smaller than the minimum bending radius r defined by the coaxial cable 20, and as a result, the transmission characteristics of the coaxial cable 20 with respect to the high-frequency signal are deteriorated. It may be the cause.

On the contrary, let us consider a case where the projecting dimension L of the projecting part 15a of the main body insertion part 15 is shorter than the dimension shown in the conventional embodiment. Contrary to the above-described example, the provision of the “short” projecting portion makes it easy to bend the coaxial cable 20 from a position immediately after the connector. The space occupied can be reduced even a little, and the effect of facilitating the storage of equipment in a narrow storage space and the connection with an extra length coaxial cable can be expected.

The attachment state at this time is well shown in the schematic diagram of FIG. In this figure, the coaxial cable connector attached to the coaxial cables 20a and 20b is the coaxial cable connector 1 according to the embodiment of the present application, and the main body insertion portion 15 has a “short” protruding portion (in other words, the length is optimal). The projecting portion is configured to be provided. In this figure, as in the above embodiment, the coaxial cable 20b connected to the output terminal 51b of the TV terminal 51 is bent at the minimum bending radius r, and the mounting frame 52 on which the TV terminal 51 is assembled is connected to the switch box. The state when it is stored in 55 is shown.
According to this figure, the bending position of the coaxial cable 20 when the coaxial cable connector 1 of the embodiment of the present application is used is the same as that of the coaxial cable 20 when the coaxial cable connector 100 of the conventional embodiment is used. The protective coating 8 of the coaxial cable 20 contacts the inner wall or the bottom surface 57 of the frame 56 of the switch box 55 because the position closer to the coaxial cable connector side by S indicating the difference in position in the figure than the processing position. It is possible to prevent contact and polymerization. In other words, the mounting frame 52 with the television terminal 51 assembled can be easily stored in the switch box 55 even if the projection 15a has a slight difference in size. Shorter is better.

Thus, when the protrusion dimension L of the protrusion 15a of the main body insertion part 15 is short, the above-described improvement in the capacity to accommodate in a narrow place is brought about, but on the other hand, the protrusion 15a except the raised part 14 is fixed. Since the overlapped portion with the ring 3 is narrower than in the conventional embodiment, the length of the fixing ring 3 is formed to the length shown in the conventional embodiment depending on the protrusion dimension L of the protrusion 15a. Even if this is the case, the force of crimping and fixing by the fixing ring 3 is weakened, and there is a possibility that the anti-pulling force may be reduced compared to the conventional case. In addition, if there is too little overlap, if the coaxial cable is bent immediately after the connector, the biasing force of the coaxial cable itself is applied to the connection between the coaxial cable and the connector. There is a problem that the connection part is easily detached and the reliability is impaired. In addition, the length of the fixing ring 3 may be shortened so as to match the protruding portion 15a. In this case, depending on the conditions, one of the problems of the coaxial cable connector of the present application is maintained. Needless to say, it becomes difficult.

Therefore, in the present application, in relation to the length L3 of the fixing ring 3, the length of the protruding portion 15a of the main body insertion portion 15 is "shortened" based on an experiment, and its optimization has been studied. It is.
According to this result, the axial dimension between the tip end of the skirt body 12a in the insertion fastening portion 12 and the raised end point 14b in the raised portion 14 is defined as the reference length L1, and the length of the raised portion 14 is defined as the raised portion length L2. Then, the protrusion dimension L of the protrusion 15a (= reference length L1 + bump length L2) is

In the case of the first embodiment, in the condition of reference length L1≈fixed ring length L3, protrusion dimension L> fixed ring length L3
In the case of the second embodiment Under the condition of reference length L1 ≦ fixed ring length L3, protrusion dimension L ≧ fixed ring length L3
Indicated by

That is, according to the first embodiment of the coaxial cable connector 1 of the present invention, the reference length L1 is determined so as to be substantially equal to the length L3 of the fixing ring 3, and the fixing ring 3 is inserted into the insertion fastening portion 12. As long as the protrusions 15a are arranged along the protrusions 15a, the protrusions 15a only need to be formed to have a dimension such that only the length L2 of the raised portions 14 protrudes from the opening end on the front end side of the fixing ring 3.
In the second embodiment, the minimum value of the protrusion dimension L is equal to the length L3 of the fixing ring 3, and the maximum value of the protrusion dimension L of the protrusion 15a is equal to the length L3 of the fixing ring 3. Therefore, the protrusion dimension L of the protrusion 15a is configured to have a length within a predetermined range determined by the minimum value and the maximum value. . That is, as shown in FIG. 3, under the condition in which the fixing ring 3 is disposed along the insertion fastening portion 12, the protruding portion 15a has the tip 18 of the main body insertion portion 15 (in other words, the bulging start point 14a). ) Is the same position as the opening end on the front end side of the fixing ring 3, and any length in a range where only the length L <b> 2 of the raised portion 14 protrudes from the opening end on the front end side of the fixing ring 3. What is necessary is just to be formed.

On the other hand, when the measured dimension of the protrusion dimension L of the prior art summarized in FIG. 4 is seen, the shortest dimension is 8 mm as shown in Example A. Therefore, the protrusion dimension L of the embodiment of the present application is from the main purpose of the present application. Considering it, it must be shorter than 8 mm, which is the shortest dimension of the prior art.
Furthermore, according to the embodiment of the present application, the condition that the protrusion dimension L is maximized is when the reference length L1≈the fixed ring length L3 (approximately 5 mm in the embodiment of the present application). The length L2 of the part length 14a must be at most 3 mm (that is, a value obtained by subtracting approximately 5 mm which is the fixed ring length L3 from 8 mm which is the shortest dimension of the conventional projecting dimension L). I understand that.
Further, it is considered that the length L2 of the raised portion length 14a should be longer than 1.5 mm (according to example A in the table of FIG. 4), which is the minimum dimension of L2 of the prior art. In order to maintain the reliability of the pull-out force against the coaxial cable 20 at the same level as that of the conventional technology, for example, even if the protruding dimension in the circumferential direction at the ridge end point 14b is the same as that of the conventional technology, This is because, by increasing the length, the slope of the raised portion 14 becomes gentler than that of the prior art, and as a result, the mountability of the main body insertion portion 15 to the coaxial cable 20 is further improved.
That is, the raised portion length L2 is preferably set to any length of 1.5 <L2 <3 which is the above range. As a specific example, the raised portion length L2 in the embodiment of the present application is set to approximately 2.1 mm, which is slightly shorter than the center value of the above range. Therefore, the maximum projecting dimension L of the projecting portion 15a in the embodiment of the present application is the combined length of approximately 2.1 mm that is the raised portion length L2 and the length of the reference length L1, that is, approximately 5 mm that is the length L3 of the fixing ring. This is about 7.1 mm, which is shorter than the shortest dimension of the prior art. In addition, since the minimum protrusion dimension L is approximately 5 mm which is equal to the length L3 of the fixing ring, the reference length L1 at this time is 2,9 mm obtained by subtracting the protruding part length L2 = 2.1 mm from the protrusion dimension L = 5 mm. is there.

As described above, according to the coaxial cable connector 1 according to the embodiment of the present application, the projecting dimension L of the projecting portion 15a is not only “shorter” than the projecting dimension of the prior art, but also the length of the fixing ring 3 is adjusted. In relation to the length L3, by optimizing the protruding dimension L, it can be accommodated in a narrow space, which is the main purpose of the present invention, without degrading various performances such as mounting properties and reliability to the coaxial cable. It is possible to further improve the sex.

As described above, according to the embodiment of the present invention, by optimizing the shape and dimensions of the connector main body, not only the above-described coaxial cable mountability and F-type receptacle connectivity are further improved, Even if it is a coaxial cable connector with such an effect that it can be stored in a narrow space, the handling method does not interfere with the user's work procedure. Since the reliability after mounting is not different from the coaxial cable connector of the conventional embodiment, it is possible to provide a user-friendly coaxial cable connector. This will not only support the construction of a digital reception system for newly built buildings and condominiums, which will begin in earnest for the full digital transition in 2011, but also make the existing terrestrial analog broadcast reception system digital. In the digital renovation work, there are situations in which installation and replacement of a large number of joint receiving devices must be performed in a limited time with respect to many new systems and existing television reception systems nationwide. If the coaxial cable connector according to the embodiment is used, it is possible to greatly improve the work efficiency in the digital work, and as a result, it is possible to contribute to society.

The present invention is not limited to the above embodiment, and can be implemented by appropriately changing the configuration of each part without departing from the spirit of the present invention as exemplified below.
The coaxial cable connector 1 according to the embodiment of the present application conforms to the “design target value” in which the reliability of the coaxial cable 20 such as the pull-out force is equivalent to that of the conventional technology (in other words, the actual value of the current product). The relative relationship between the length L3 of the fixing ring 3 and the protruding dimension L of the protruding portion 15a in the case of using the fixing ring 3 used in the prior art is shown, but this is particularly limited to this embodiment. In addition, in order to improve the storage property in a narrow place, for example, by changing parameters other than the length of the fixing ring 3 (thickness, material, etc.), the same reliability as before can be obtained. If the property (ability value) can be obtained, the length L3 of the fixing ring 3 may be shorter than the example shown in the embodiment of the present application.
In the above-described embodiment, the reliability condition such as the pull-out force of the coaxial cable 20 is adapted to the actual value of the conventional technology. If the actual power value is not the “design target value” but is adapted to the “design standard value” which is the minimum condition required in actual use, the length L3 of the fixing ring 3 is It is also possible to make it shorter than the example shown in the embodiment. In any case, the projecting dimension L of the projecting portion 15a is shorter than the projecting dimension of the prior art, and the relative relationship shown in the embodiment of the present application is related to the length L3 of the fixing ring 3. What is necessary is just to form in length.

It is the schematic of the coaxial cable connector which is embodiment of a prior art, (a) is a schematic side view which shows the protrusion part of a connector main body, the length of a fixing ring, and the positional relationship of the attachment. (B) is the schematic sectional drawing which fractured partially. BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic of the coaxial cable connector which is 1st Embodiment of this application, (a) is a schematic side view which shows the protrusion part of a connector main body, the length of a fixing ring, and the positional relationship of the attachment. (B) is a schematic sectional drawing. It is the schematic which shows the protrusion part of the connector main body which comprises the coaxial cable connector which is 2nd Embodiment of this application, the length of a fixing ring, and the positional relationship of the attachment, (a) is a case where a protrusion part is the minimum dimension , (B) shows the case where the protrusion has an intermediate dimension, and (c) shows the case where the connector body has the maximum dimension. It is a table | surface of the measured dimension of the connector main body of the coaxial cable connector which is embodiment of this application, and the coaxial cable connector which is embodiment of a prior art. BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic sectional drawing which fractured | ruptured part when a coaxial cable was mounted | worn with the coaxial cable connector which is embodiment of this application, (a) is the schematic before connecting with F type connector (receptacle), ( FIG. 4B is a schematic diagram of a state in which an insertion operation is performed on an F-type connector (receptacle), and FIG. 5C is a schematic diagram of a state in which the F-type connector (receptacle) is screwed. It is the perspective view seen from the front side upper part which showed typically the attachment state of the television terminal accommodated in the switch box. FIG. 7 is a view of the mounting state of the TV terminal housed in the switch box when the switch box is broken along the line XX in FIG. 6, as viewed from the back side, and (a) uses the coaxial cable connector according to the embodiment of the present application. (B) is a schematic diagram when the coaxial cable connector according to the conventional embodiment is used.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Coaxial cable connector (F-type connector), 2 ... Connection pipe | tube, 2a ... Female thread part, 2b ... Receiving introduction part, 2c ... Front side opening end, 3 ... Fixing ring, 4 ... Center conductor, 5 ... Internal insulator , 6 ... Aluminum laminated foil, 7 ... External conductor (braided conductor), 8 ... External insulator (protective coating), 10 ... F-type connector (receptacle), 10a ... Male screw, 10b ... Tip, 11 ... Insertion hole , 11a ... first insertion hole, 11b ... second insertion hole, 12 ... insertion fastening part, 12a ... tip, 12b ... skirt body, 12c ... fastening body, 12d ... through hole, 14 ... bulge part , 14a... Bulging start point, 14b... Bulging end point, 15. 21 ... Restriction part, 30 ... Connector main body, 31 ... Base end groove, 32 ... End part, 51 ... TV terminal, 51a ... Input terminal, 52b ... Output terminal, 51c ... Branch terminal, 52 ... Mounting frame, 53 ... Mounting screw, 55 ... Switch box, 56 ... Frame, 57 ... Bottom surface, 100 ... Coaxial Cable connector (F-type connector), d1 ... first (insertion hole) diameter, d2 ... second (insertion hole) diameter, L ... projection dimension of projection, L1 ... reference length, L2 ... lift Director, L3 ... Length of the fixing ring.

Claims (3)

A coaxial cable connector to be attached to the end of the coaxial cable,
In order to insert between the braided conductor, which is the outer conductor of the coaxial cable, and the inner insulator, an insertion hole that penetrates from the tip portion to the base portion is provided inside, and a raised portion is formed on the outer periphery near the tip portion. A cylindrical main body insertion portion and a skirt-like extending from the base portion of the main body insertion portion in the circumferential direction so as to insert and fix a protective coating that is an external insulator of the coaxial cable and surround the end portion A cylindrical connector body comprising an insertion fastening portion configured in
A connecting cylinder pivotally attached to the base end of the connector body and screwed to an external conductor to be connected;
A coaxial cable connector comprising: a fixing ring that is externally fitted to an end of the coaxial cable, inserted into the coaxial cable and then deformed by a pressing operation, and the body insertion portion is fixed by crimping;
The fixing ring is formed to have a predetermined length that facilitates deformation by the pressing operation, and the connector main body includes an end of the skirt body at the insertion fixing portion and a shaft of the raised portion. The axial dimension formed by the raised end point on the inner side in the direction is formed so as to be substantially equal to the predetermined dimension of the fixing ring, or the connector body is formed at the insertion fastening portion. An axial dimension between the tip of the skirt body and the bulge end point in the bulge portion, and an axial direction between the tip of the skirt body in the insertion fixing portion and the bulge start point on the axially outer side of the bulge portion The dimension is formed so as to include a predetermined dimension of the fixing ring ,
In addition to the braided conductor, the coaxial cable includes a conductive laminate foil that is covered inside and covers the internal insulator, and the main body insertion portion of the connector body includes the braided conductor. Configured to be inserted between a conductor and the laminate foil;
The insertion hole of the main body insertion portion includes a first insertion hole having the first diameter at least on the distal end side of the main body insertion portion, and a second having the second diameter on the base portion side. The insertion holes are configured so that both insertion holes having two different inner diameters are sequentially arranged coaxially.
A first diameter of the first insertion hole is formed to be slightly larger than a diameter including a laminate foil provided so as to cover the internal insulator, and further, a second diameter of the second insertion hole is further increased. The diameter of the first insertion hole is slightly smaller than the first diameter of the first insertion hole, and the first insertion hole and the second insertion hole are formed continuously. A coaxial cable connector. On the inner peripheral surface of the connection tube, a receiving introduction portion for receiving and introducing a tip portion of an F-type receptacle to be connected from the front opening end toward the inner side in the axial direction, and the F-type receptacle are formed. The coaxial cable connector according to claim 1, wherein female screw portions for screwing into the male screws are sequentially arranged in a coaxial manner. The length of the fixing ring is approximately 5 mm, the length of the raised portion is approximately 2.1 mm, and the connector main body includes the tip of the skirt body at the insertion fastening portion and the axial direction of the raised portion. The axial dimension formed by the raised end point on the inner side is formed so as to be approximately equal to approximately 5 mm which is the length of the fixing ring, or the connector main body has the insertion stop The axial dimension between the tip of the skirt body in the landing portion and the bulge end point in the bulge portion, and between the tip of the skirt body in the insertion fastening portion and the ridge start point on the axially outer side of the ridge portion. The coaxial cable connector according to claim 1 or 2 , wherein an axial dimension of the coaxial cable connector is formed to include a length of 5 mm which is a length of the fixing ring.

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