JP3746757B2 - Bus port connection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bus port (BUS PORT) connection device, and more specifically, a personal computer, a notebook computer, or an accessory device inserted into a USB port such as a PDA (Personal Digital Assistant) interferes with other connection ports. The present invention relates to a connection device that can be connected without being raised.
[0002]
[Prior art]
The USB (UNIVERSAL SERIAL BUS) interface is a connection method that has recently been highlighted. This means a terminal, plug, connector or the like for inserting and connecting an accessory device such as a memory stick or wireless LAN card to a USB port such as a personal computer, a notebook computer, or a PDA (Personal Digital Assistant). Compared to conventional personal computers, the development of various application programs requires the connection of many USB devices such as telephones, modems, printers, microphones, speakers, mice, scanners, etc. A more convenient and functional USB interface is used to connect the USB device, which makes it easy to connect USB devices, has a hot plug function and perfect Plug and Play capability when replacing USB devices The advantage of being able to operate without rebooting the computer.
[0003]
Conventionally, a USB interface in the form of a cable has been used for such connection, but recently, there is an increasing number of cases where direct connection is made without a cable due to the lighter, thinner and smaller products. FIGS. 10A and 10B are usage examples of a USB device using a USB interface that has been recently used. FIG. 10A shows a memory stick 400 to which a USB connector 405 is attached, and FIG. 10B also shows an example of a wireless LAN card 420 to which a USB connector 425 is coupled.
[0004]
When the memory stick 400 and the wireless card 420 having the above-described structure are mounted on, for example, a notebook computer, the structure is as shown in FIG. According to FIG. 11, the other terminal around the USB port, that is, the insertion slot of the floppy disk drive or another USB terminal is closed.
[0005]
Further, when the conventional USB device as described above is used in the desktop computer 600 as shown in FIG. 12, the ports on the back, that is, the other USB terminal 615, the printer terminal 602, the monitor terminal 604, the keyboard terminal 620 and the mouse are also used. There is a problem that interference with the terminal 622 or the like causes other terminals to be used or the USB port 612 cannot be used.
[0006]
Therefore, the present invention provides a structure in which a device using such a USB interface can be rotated at a constant angle in the X-axis and Y-axis directions, particularly 90 degrees or 180 degrees, respectively.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of such a conventional problem, and an object of the present invention is to rotate a connecting portion connected to a bus port of a computer device and a main body portion on which an accessory device is mounted at a predetermined angle. It is an object of the present invention to provide a bus port connection device that can be installed so that it can be moved and does not interfere with other peripheral ports and attached devices.
[0008]
It is another object of the present invention to provide a bus port connection device that can adjust the position of an accessory device connected to a bus port so that the accessory device can exhibit optimum performance.
[0009]
[Means for Solving the Problems]
As a configuration means for achieving the above object, the present invention is a bus port connection device for connecting an accessory device to a bus port of a computer device, and has an upper surface and a lower surface, and the accessory device is mounted inside. A body part in which a space to be obtained is formed; a hinge part formed adjacent to a side corner of the body part and having a hinge shaft protruding perpendicularly to the center thereof; electrically connected to the accessory device; and a bus port of the computer device A connector inserted into the hinge shaft; a cylindrical frame inserted into the hinge shaft; a guide shaft extending from one side of the frame in the same plane as the main body; and a peripheral edge of a part of the outer peripheral surface of the guide shaft. A projection that fits into the groove of the guide shaft inside the one end, and a connecting portion to which the connector is attached at the other end; and the guide shaft and the connecting portion Providing bus ports connecting device comprising; resilient means in close contact with the hinge shaft and the guide shaft so as to fix the location positioned in the frame and the connecting portion. A summary of the hinge shaft and a part of the guide shaft is a polygonal column shape having at least four or more corners. The gist is that the elastic means is a U-shaped spring. The frame of the guide shaft is provided with a circular protrusion that protrudes inward, and the upper portion of the circular protrusion is cut away so that both ends of the spring can be positioned. The gist is to be cut out so as to extend the length of the diagonal line. The gist of the present invention is that the guide shaft forms a through-hole through which an electric wire connecting the connector and the accessory device can pass, and the frame is opened on the opposite side of the guide shaft. The gist of the present invention further includes a cylindrical guide cover that is formed with a lower open hole so that the electric wire can pass therethrough and surrounds the frame. The gist of the guide shaft is that the groove of the guide shaft is formed about 180 ° on the periphery of the shaft, and the protrusion of the connecting portion is formed of about 90 ° so as to be fitted to one side of the groove.
[0010]
Furthermore, the present invention provides a bus port connection device for connecting an accessory device to a bus port of a computer device, wherein the main body portion has an upper surface and a lower surface and in which a space in which the accessory device can be mounted is formed; A connector electrically connected to the apparatus and inserted into a bus port of the computer apparatus; a connecting part in which a rotation shaft is formed on one side and the connector is mounted at the other end; rotation of the connecting part A fixing portion having a supporting means for supporting a shaft and integrally formed with the main body portion; and an elastic means positioned in the fixing portion in close contact with the rotating shaft so that the position of the connecting portion can be fixed. A bus port connection device is provided. The gist of the invention is that a part of the rotating shaft has a polygonal column shape having at least four or more corners. The gist is that the elastic means is a U-shaped spring. The gist of the connecting portion is that a through-hole through which an electric wire connecting the connector and the accessory device can pass is formed. A square bar-shaped stopper is formed on one side of the rotation shaft so that the connecting portion does not rotate 180 ° or more by the rotation shaft, and the stopper is fitted inside the fixed portion. The gist is that the groove is formed on the periphery of the rotation shaft by about 180 °.
[0011]
Furthermore, the present invention provides a bus port connection device for connecting an accessory device to a bus port of a computer device, wherein the main body portion has an upper surface and a lower surface and in which a space in which the accessory device can be mounted is formed; A hinge portion formed adjacent to a side corner of the portion and having a hinge shaft protruding perpendicularly to the center thereof; a connector electrically connected to the accessory device and inserted into a bus port of the computer device; A cylindrical frame to be inserted into the hinge shaft is formed, and a connecting portion to which the connector is mounted at the other end; and the cylindrical frame in close contact with the hinge shaft to fix the position of the connecting portion A bus port connection device comprising: elastic means located on; The gist of the invention is that a part of the hinge shaft has a polygonal column shape having at least four or more corners. The gist is that the elastic means is a U-shaped spring. The frame of the connecting portion is provided with a circular protrusion protruding inward, and an upper portion of the circular protrusion is notched so that both ends of the spring can be positioned. The gist is to be cut out so as to extend the length of the diagonal line. The connecting portion forms a through hole through which an electric wire connecting the connector and the accessory device can be passed, and the frame of the connecting portion is opened on one side. The gist of the present invention is to further include a cylindrical guide cover that is formed with a lower open hole so that the electric wire can pass through one side surface and surrounds the frame of the connecting portion.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing a first embodiment of a bus port connection device according to the present invention, FIG. 2 is a detailed assembly view of the bus port connection device of FIG. 1, and FIG. 3 is a rotating portion of the bus port connection device of FIG. FIG.
[0013]
Referring to FIG. 1, the bus port connection device 1 according to the present invention includes a main body 10, a guide shaft 20, and a connecting part 30. The connection device according to the present invention is a device for connecting to a universal serial bus (UNIVERSAL SERIAL BUS, hereinafter referred to as “USB”) port, but is not limited thereto.
[0014]
Referring to FIG. 2, the main body 10 has an internal space in which the attachment device 12 can be mounted. The main body portion 10 has a long rectangular shape, and has a hinge portion 14 that protrudes in a semicircular shape on one of two longitudinal side surfaces. The hinge portion 14 protrudes in parallel with the upper surface and the lower surface of the main body portion 10 and is formed close to the short side surface. Further, the hinge part 14 has a hinge shaft 16 projecting perpendicularly to the center. The main body 10 is formed with a side wall having a constant thickness in all directions, but the hinge part 14 is not formed with a side wall, so that the guide shaft 20 can be smoothly rotated. The main body 10 is formed in a structure that can be separated and assembled into an upper part and a lower part.
[0015]
1, 2, and 3, the guide shaft 20 is inserted into the hinge portion 14 of the main body portion 10. The guide shaft 20 is a long cylindrical rotation shaft, and a round cylindrical frame 22 is formed at the connecting position of the hinge portion 14. The frame 22 of the guide shaft 20 is fitted to the hinge shaft 16 of the hinge portion 14 and is configured to be rotatable in the same plane as the main body portion 10. That is, the position of the guide shaft 20 can change from 0 ° to about 180 ° around the hinge shaft 16. This is shown in detail in FIG. On the other hand, a recessed groove 26 having a recessed shape is formed on the periphery of a part of the outer peripheral surface of the guide shaft 20. The concave groove 26 acts as a connecting means for connecting the connecting portion 30 and the guide shaft 20.
[0016]
In the present embodiment, the hinge shaft 16 has a quadrangular prism shape 17 at the end. In addition, each edge (EDGE) portion of the quadrangular column is rounded in order to smooth the rotation (or position change) of the guide shaft. The quadrangular columnar hinge shaft 16 is inserted into the frame 22 of the guide shaft 20, and the frame 22 forms a circular protruding portion 28 that protrudes along the inner peripheral surface to form a circular through hole. It is preferable that a part of the upper part of the circular protrusion 28 is notched so that an elastic means described later is located.
[0017]
On the other hand, the guide shaft 20 is preferably penetrated so that the inside can pass the electric wire, and a part of the frame 22 of the guide shaft 20 is opened. In other words, an opening is formed on the opposite side of the direction in which the rotating shaft is attached. This is because the electric wire is extracted through the penetrating portion of the guide shaft 20 and connected to the accessory device. A guide cover 24 is surrounded by the frame 22 of the guide shaft 20. The guide cover 24 is formed on one side so as to surround the outer peripheral surface of the frame 22 by forming a lower open hole so that an electric wire coming out of the frame 22 can pass therethrough. The hole is smaller than the opening of the frame 22 so that the electric wire can be positioned stably.
[0018]
The connecting portion 30 connected to the guide shaft 20 has a protrusion 34 that fits into the groove 26 of the guide shaft 20 inside one end. The protrusion 34 is fitted in the concave groove 26 so that the connecting portion 30 can be rotated around the guide shaft 20. The concave groove 26 may be formed on the periphery of the guide shaft by about 180 °. In such a case, the protrusion 34 of the connecting portion 30 is formed so as to occupy 90 ° of the inner peripheral surface and is fitted in the concave groove 26. Therefore, in this case, the connecting portion 30 rotates 90 ° about the guide shaft 20.
[0019]
The end portion of the guide shaft 20 has a quadrangular prism shape like the hinge shaft 16. Each corner (or edge (EDGE)) of the quadrangular column 21 is rounded to smoothly rotate the connecting portion 30. A connector 32 to be inserted into the USB port is attached to the other end of the connecting portion 30. The connector 32 is electrically connected to the attachment device 12 of the main body 10 through the through hole portion of the guide shaft 20. The connecting part 30 has a structure capable of separating and assembling the upper and lower parts, like the main body part 10.
[0020]
When the guide shaft 20 is coupled to the main body 10 and the connecting portion 30 and rotated, appropriate elastic means should be used for the hinge shaft 16 and the guide shaft 20. The elastic means are preferably U-shaped springs 52 and 54. The springs 52 and 54 are positioned in close contact with the quadrangular column portions of the hinge shaft 16 and the guide shaft 20, respectively. First, the spring 52 that is in close contact with the quadrangular column portion 17 of the hinge shaft 16 is positioned on the frame 22 of the guide shaft 20. As described above, the frame 22 is formed with a circular protrusion, and the circular protrusion 28 is notched so that a U-shaped spring 52 is inserted and fixed. At this time, the circular protrusion 28 is cut out by extending the spring by the length of the diagonal line of the hinge shaft 16 having a quadrangular prism shape. Accordingly, the spring 52 is fixed while the hinge shaft 16 is inserted in the middle and the outside is in contact with the circular protrusion 28 of the frame 22. The spring 52 enables the guide shaft 20 to rotate 90 ° about the hinge shaft 16.
[0021]
Similar to the spring 52 of the hinge shaft 16, the spring 54 that contacts the quadrangular column portion 21 of the guide shaft 20 is formed in a U shape and is fixed inside one side of the connecting portion 30. A spring fixing protrusion 36 is formed inside the connecting portion 30 to fix the spring 54. At this time, a gap is formed in the spring fixing projection 36 so that the spring is extended by the length of the diagonal line of the rectangular columnar guide shaft.
[0022]
FIG. 4 is a perspective view showing an operating state of the USB connection device of FIG. The first embodiment will be described as an example. According to FIG. 4, the connecting portion can be rotated 90 ° around the hinge shaft 16. At this time, since the U-shaped spring is used as the elastic means and the quadrangular prism portion 17 is formed on the hinge shaft 16, the connecting portion 30 stops after moving by 90 °. Further, in this state, the connecting portion 30 can be rotated 90 ° around the guide shaft 20 again, or the connecting portion 30 can be further rotated 90 ° around the hinge shaft 16. When the connecting portion 30 is rotated 180 ° around the hinge shaft 16, the connecting portion 30 can also be turned 90 ° around the guide shaft 20. At this time, the quadrangular prism portion 21 of the guide shaft 20 is also configured to be rotatable about 90 ° by the U-shaped spring.
[0023]
The second embodiment of the bus port connection device according to the present invention will be described in detail as follows. FIG. 5 is a perspective view showing a second embodiment of the bus port connection device according to the present invention, and FIG. 6 is a perspective view showing in detail a rotating portion of the bus port connection device of FIG. 5 and 6, the bus port connection device has a main body 60 in which a space in which an accessory device can be accommodated is formed. The main body 60 has a rectangular shape with an upper surface and a lower surface. One of the longitudinal side surfaces of the main body 60 has a fixing portion 61 that protrudes horizontally from the side surface. A circular support portion 63 is formed in the fixed portion 61 so that the circular rotation shaft 75 can be supported. The main body 60 is structured to be separable into an upper part and a lower part.
[0024]
A connecting portion 70 having a rotation shaft 75 formed on one side is inserted into the fixing portion 61 of the main body portion 60. The connecting portion 70 has a rotating shaft 75 formed on one side, and a connector 72 inserted into a bus port, particularly a USB port, is attached to the other side. The connecting part 70 has an assembly structure that can be separated into an upper part and a lower part, and a space is formed in the interior so that an electric wire 73 that electrically connects the connector 72 and the accessory device 64 can pass therethrough. Accordingly, the rotation shaft 75 of the connecting portion 70 becomes a hollow shaft having an inside. The rotation shaft 75 of the connecting portion 70 has a quadrangular prism portion 74. The quadrangular prism portion 74 is formed on a part of the rotating shaft 75 and has a structure in which the square corner portion is rounded and arranged. Further, an elastic means is located in close contact with the quadrangular prism portion 74, and the elastic means is preferably a U-shaped spring 80. The U-shaped spring 80 may be formed such that the upper part and the lower part are vertically bent in the same direction so that the upper part and the lower part face each other in parallel, and an elastic force can be generated between the upper part and the lower part. Can.
[0025]
The position of the spring 80 is fixed by a spring fixing protrusion 82 formed on the fixing portion 61. As shown in the figure, the spring fixing protrusion 82 is a U-shaped protruding wall, and the upper and lower bent portions of the spring 80 are in close contact with the outer wall, and can be in close contact with the fixing protrusion by the elastic force of the spring. The spring fixing protrusion 82 may be formed in a pair of fixing grooves as a normal structure in which one side of the spring protrudes to be engaged. At this time, the spring fixing protrusion 82 is formed with a gap therein so that the spring is extended by the length of the diagonal line of the quadrangular columnar guide shaft.
[0026]
A stopper 76 can be formed on one side of the rotation shaft so that the connecting portion 70 does not rotate 180 ° or more by the rotation shaft 75. The stopper 76 has a square bar shape, and a groove 77 into which the stopper can be inserted can be formed on the inner peripheral surface of the inner periphery of the fixing portion 61 at about 180 °. With such a structure, it is possible to limit the connecting portion 70 from rotating by 180 ° or more. Unlike the first embodiment, the second embodiment of the USB connection device is configured such that the main body 60 can rotate around the rotation axis of the connecting portion 70.
[0027]
In the first and second embodiments, the positional relationship between the main body portions 10 and 60 and the USB connectors 32 and 72 can protrude from the main body portion when viewed from a state where the connector is in close contact with the main body portion. Alternatively, the main body may be formed so as to protrude from the connector. This differs depending on the form of the USB port, but in order to use the connection device in a computer with a protruding USB port, it must not protrude from the main body. On the contrary, when the USB port is formed to be recessed, the connector must protrude from the main body.
[0028]
In the embodiment described above, the configuration that can be rotated by 90 degrees can be variously changed. That is, if the quadrangular prism shape is changed to an octagonal prism shape, the rotation angle can be formed in the order of 22.5 degrees, 45 degrees, and 67.5 degrees. Thus, it is possible to rotate in various angular units using a polygonal column shape.
[0029]
In the second embodiment, the main body portion is rotatable up to 180 ° around the rotation axis of the connecting portion, and the first embodiment is thus provided with a single rotation axis. Distinguished from In the present embodiment, the stopper can be formed as described above so that the connecting portion does not rotate more than 90 ° around the guide shaft.
[0030]
FIG. 7 is an exploded perspective view showing a third embodiment of the bus port connection device according to the present invention. In the present embodiment, the main body portion 10 having the structure as in the first embodiment is used. However, the first embodiment is that the connecting portion 90 is configured to be able to simply rotate around the hinge shaft 16. And different. Therefore, in the present embodiment, the main body 10 includes the hinge portion 14, the hinge shaft 16, the quadrangular prism portion 17 formed on the hinge shaft 16, and the like as in the first embodiment.
[0031]
In the present embodiment, the connecting portion 90 is formed with a cylindrical frame 92 inserted into the hinge shaft 16 at one end, and a connector 91 inserted into a bus port, particularly a USB port, at the other end. Installed. The connecting portion 90 is structured to be vertically separated, but only the lower portion is shown in the drawing. A space is formed in the connecting portion 90 so that an electric wire (not shown) that electrically connects the connector 91 and the accessory device board 12 mounted on the main body portion 10 can pass therethrough.
[0032]
The structure of the frame 92 of the connecting portion and the structure and coupling state of the U-shaped spring 95 and the hinge shaft 16 which are elastic means located inside thereof are the same as in the first embodiment. The guide cover 94 that surrounds the frame 92 of the connecting portion is also as described in the first embodiment. Therefore, repeated description is omitted. According to the third embodiment, when the main body 10 interferes with other terminals when the connector 91 of the connecting portion 90 is inserted into the USB port of the computer device (not shown), the main body 10 is connected to the hinge shaft. 16 can be rotated by 90 degrees in the same plane as the connecting portion 90 around the center. Although the rotation angle is configured to be 90 degrees in the above-described embodiment, those skilled in the art will fully understand that if the rectangular column shape of the hinge shaft 16 is a hexagonal column or other polygonal column shape, it can be rotated in different angular units. It will be possible.
[0033]
FIG. 8 is a perspective view showing a state in which the bus port connection device according to the present invention is connected to a USB port of a notebook computer, and FIG. 9 shows a state in which the bus port connection device according to the present invention is connected to a USB port of a desktop computer. It is a perspective view. When the bus port connection device according to the present invention is connected to the notebook computer 200, the connection device 1 is adjusted so as to be positioned without causing interference with other peripheral devices such as the other USB terminal 207 or the floppy (registered trademark) disk 202. Can do. At this time, the connection device according to the second embodiment is used as the connection device. Therefore, as shown in FIG. 7, it can be rotated 90 ° or 180 ° so that it can be connected to a position that does not cause interference with peripheral ports and various devices.
[0034]
FIG. 9 shows a state in which the bus port connection device according to the first embodiment of the present invention is inserted into the desktop computer 300. In this case, the connection device 1 can be mounted with its position adjusted so as not to cause interference with other peripheral terminals 302, 315, and 322.
[0035]
In FIG. 8 and FIG. 9, if the accessory device built in the bus port connection device is a wireless LAN card, the main body portion may be positioned at a position where the optimum performance can be exhibited when the structure of the present invention is used. it can. Generally, it is better to stand the antenna than when it is tilted, so that the performance can be improved by standing the main body.
[0036]
Although the present invention has been illustrated and described with reference to specific embodiments, it is to be understood that the present invention can be variously modified and changed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be clarified that it is easily conceivable for those who have ordinary knowledge in the industry.
[0037]
【The invention's effect】
As described above, according to the present invention, the connecting portion connected to the bus port and the main body on which the accessory device is mounted can be rotated at a constant angle so that interference with other peripheral ports and accessory devices does not occur. There is an effect. Further, a part of the guide shaft, the hinge shaft and the rotating shaft constituting the connecting device according to the present invention is formed into a polygonal column, preferably a quadrangular column, and an elastic means is placed in close contact with the portion to rotate by a predetermined angle. There is an effect to be made. Furthermore, the connection device according to the present invention uses a U-shaped spring as the elastic means, and is positioned inside the frame and the fixing portion, so that the position can be fixed firmly and easily with excellent adhesion. Furthermore, the connecting device according to the present invention forms a guide shaft, a connecting portion, and a frame so that an electric wire for electrically connecting the connector and the accessory device can pass therethrough. Can provide a structure that does not. Furthermore, the connection device according to the present invention also has an effect that the accessory device can be positioned so as to exhibit optimum performance by adjusting the position of the main body.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a bus port connection device according to the present invention.
FIG. 2 is a detailed assembly diagram of the bus port connection device of FIG. 1;
3 is a perspective view showing in detail a rotating part in the bus port connection device of FIG. 1; FIG.
4 is a perspective view showing an operating state of the bus port connection device of FIG. 1. FIG.
FIG. 5 is a perspective view showing a second embodiment of a bus port connection device according to the present invention;
6 is a perspective view showing in detail a rotating portion in the bus port connection device of FIG. 5. FIG.
FIG. 7 is a perspective view showing a third embodiment of a bus port connection device according to the present invention.
FIG. 8 is a perspective view showing a state in which the bus port connection device according to the present invention is connected to a notebook computer.
FIG. 9 is a perspective view showing a state in which the bus port connection device according to the present invention is connected to a desktop computer.
FIGS. 10A and 10B show a memory stick and a wireless LAN card, which are conventional USB accessory devices, respectively.
FIG. 11 is a perspective view showing a state in which a conventional USB accessory device is connected to a notebook computer.
FIG. 12 is a perspective view showing a state in which a conventional USB accessory device is connected to a desktop computer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connection apparatus 10, 60 Main-body part 14 Hinge part 16 Hinge axis | shaft 20 Guide axis | shaft 22 Frame 24 Guide cover 30 Connection part 32 Connector 52, 54 U-shaped spring

Claims (7)

In a bus port connection device for connecting an accessory device to a bus port of a computer device,
A main body having an upper surface and a lower surface, in which a space in which the accessory device can be mounted is formed;
A hinge portion having a hinge shaft that is formed adjacent to a side corner formed to extend outward from a part of a longitudinal side surface of the main body portion adjacent to the corner of the main body portion and protrudes perpendicularly to the center of the side corner. When,
A connector electrically connected to the accessory device and inserted into a bus port of the computer device;
A cylindrical frame inserted into the hinge shaft;
A guide shaft extending from one side of the frame in the same plane as the main body,
A concave groove formed in a peripheral edge of a part of the guide shaft;
A projection is formed inside the one end to be fitted into the groove of the guide shaft, and the other end is connected to the connector.
Elastic means positioned in the frame and the connecting portion in close contact with the hinge shaft and the guide shaft so that the positions of the guide shaft and the connecting portion can be fixed;
A bus port connection device comprising:   The bus port connection device according to claim 1, wherein a part of the hinge shaft and the guide shaft has a polygonal column shape having at least four or more corners.   2. The bus port connection device according to claim 1, wherein the elastic means is a U-shaped spring.   The frame of the guide shaft is provided with a circular protrusion protruding inward, and an upper portion of the circular protrusion is notched so that both ends of the spring can be positioned, and the circular protrusion has the hinge shaft in which the spring is a quadrangular prism. The bus port connection device according to claim 1, wherein the bus port connection device is notched so as to be extended by the length of the diagonal line.   2. The bus according to claim 1, wherein the guide shaft forms a through-hole through which an electric wire connecting the connector and the accessory device can pass, and the frame is open on the opposite side of the guide shaft. Port connection device.   The bus port connection device according to claim 1, further comprising a cylindrical guide cover that is formed with a lower open hole so that the electric wire can pass therethrough and surrounds the frame.   The concave groove of the guide shaft is formed about 180 ° on the periphery of the shaft, and the protrusion of the connecting portion is formed about 90 ° so as to be fitted to one side of the concave groove. The bus port connection device described in 1.

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