KR20160143122A

KR20160143122A - Joint device for strap and mobile terminal having the same

Info

Publication number: KR20160143122A
Application number: KR1020150079271A
Authority: KR
Inventors: 김동현; 박형훈; 안원기
Original assignee: 엘지전자 주식회사
Priority date: 2015-06-04
Filing date: 2015-06-04
Publication date: 2016-12-14

Abstract

According to an aspect of the present invention, to achieve this or another purpose, a joint device for the end of a strap according to an embodiment comprises a pin coupling portion rotatably coupled with a coupling pin coupled to an end of the strap, a strap coupling portion having a coupling rod, a cylinder guide which has a receiving hole and an entrance hole communicating with the receiving hole and the outside at a cross section perpendicular to the axial direction of the receiving hole, and a fastening cylinder rotatably received in the receiving hole of the cylinder guide and is coupled to the fastening rod of a strip coupling portion. So, a strip can be easily attached and detached.

Description

TECHNICAL FIELD [0001] The present invention relates to a strap end attaching device and a mobile terminal including the strap end attaching device.

The present invention has been made in view of the above circumstances, To a mobile terminal.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

Such a terminal is being implemented as a wearable device that can be worn by a user as the size thereof is reduced. Wearable devices can be divided into a watch type to be worn on the wrist, a glass type to wear on the face, and a neck hook type to wear on the neck, depending on the form.

A conventional watch-type mobile terminal is generally worn on the wrist by a band-shaped strap connected to the terminal body when worn on the user's body. However, in the course of performing various functions of the watch-type mobile terminal, sometimes the strap and the main body of the terminal are separated or assembled quickly.

The conventional watch-type mobile terminal has a problem that the strap is difficult to attach and detach from the main body of the terminal.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a mobile terminal in which a user can easily detach the strap and the strap can not be easily separated during use.

According to an aspect of the present invention, there is provided a strap end attaching apparatus comprising: a strap end connecting portion having a pin connecting portion to which a fastening pin coupled to an end of a strap is rotatably engaged; A cylinder guide having a receiving hole therein and having an inlet and an outlet which communicate with the outside of the receiving hole at a cross section perpendicular to the axial direction of the receiving hole and a cylinder guide rotatably accommodated in the receiving hole of the cylinder guide, And a fastening cylinder to which the fastening rod is coupled, wherein the fastening cylinder includes an engaging groove into which the fastening rod is inserted and inserted.

According to another aspect of the present invention, there is provided a mobile terminal including a terminal body, a strap for fixing the terminal body, and a strap end coupling device for rotatably connecting an end of the strap to the terminal body, A strap connecting portion having a fastening rod, a receiving hole formed in the receiving hole, an inlet and an outlet communicating the receiving hole with the outside at a cross section perpendicular to the axial direction of the receiving hole, And a coupling cylinder rotatably received in the receiving hole of the cylinder guide and coupled with the coupling rod of the strap coupling portion, wherein the coupling cylinder includes a coupling groove into which the coupling rod is inserted and inserted .

Effects of the mobile terminal and the control method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is an advantage that the main body of the mobile terminal and the strap can be easily attached and detached.

Further, the embodiment has an advantage that the cost is reduced with a simple configuration.

In addition, the embodiment has an advantage that the strap is not disassembled in the terminal body when worn on the wrist.

1 and 2 are conceptual diagrams of a mobile terminal according to a first embodiment of the present invention, viewed from different directions.
3 is an exploded perspective view of the strap end attaching device according to the first embodiment of the present invention.
4 is an exploded perspective view of a strap connection portion and a strap according to a first embodiment of the present invention.
5 is a cross-sectional view of the strap end attaching device according to the first embodiment of the present invention, with the strap connecting portion removed.
6 and 7 are sectional views showing the operation of the strap end attaching device according to the first embodiment of the present invention.
8 is a perspective view of a strap end attaching apparatus according to the first embodiment of the present invention.
9 is a perspective view of a mobile terminal according to a second embodiment of the present invention.
10 is an exploded perspective view of a mobile terminal according to a second embodiment of the present invention.
11 is an axial view of a coupling hole according to a second embodiment of the present invention.
12 and 13 are conceptual diagrams showing an operation of the strap end attaching device according to the second embodiment of the present invention.
14 and 15 are exploded perspective views of a mobile terminal according to a third embodiment of the present invention.
16 is an assembled perspective view of a mobile terminal according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , &Lt; / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Meanwhile, the mobile terminal can be extended to a wearable device that can be worn on the body beyond the dimension that the user mainly grasps and uses. These wearable devices include smart watch, smart glass, and head mounted display (HMD). Hereinafter, examples of a mobile terminal extended to a wearable device will be described.

The wearable device can be made to be able to exchange (or interlock) data with other mobile terminals. The near field communication module (not shown) can detect (or recognize) the wearable device that can communicate with the mobile terminal. Further, if the detected wearable device is a device authenticated to communicate with the mobile terminal, the controller (not shown) may transmit at least a part of the data processed by the mobile terminal to the wearable device through the local communication module. Therefore, the user can use the data processed in the mobile terminal through the wearable device. For example, when a telephone is received in the mobile terminal, it is possible to make a telephone call through the wearable device or to confirm the received message through the wearable device when the message is received in the mobile terminal.

1 and 2 are conceptual diagrams of a mobile terminal according to a first embodiment of the present invention, viewed from different directions.

In addition, although a watch-type mobile terminal 300 is shown in the embodiment, the present invention is not limited thereto and may be used in various types of mobile terminals. However, for convenience of explanation, a watch-type mobile terminal 300 will be mainly described.

3 and 4, a watch-type mobile terminal 300 includes a terminal body 301 having a display portion 351 and a strap 10 (not shown) connected to the terminal body 301 and configured to be worn on the wrist ).

The terminal body 301 includes a case that forms an appearance. As shown, the case may include a first case and a second case which provide an internal space for accommodating various electronic components. However, the present invention is not limited to this, and one case may be configured to provide the internal space, so that a mobile terminal 300 of a unibody may be realized.

Such cases may be formed by injection molding of a synthetic resin, or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The watch-type mobile terminal 300 is configured to allow wireless communication, and the terminal body 301 may be provided with an antenna for the wireless communication. On the other hand, the antenna can expand its performance by using a case. For example, a case including a conductive material may be configured to electrically connect with the antenna to extend the ground or radiating area.

The display unit 351 may be exposed on one side of the terminal body 301.

The display unit 351 may be disposed on the front surface of the terminal body 301 to output information. The display unit 351 may include a touch sensor, which may be implemented as a touch screen.

The terminal body 301 may include an acoustic output unit 352, a camera 321, a microphone 322, a user input unit 323, and the like. When the display unit 351 is implemented as a touch screen, the display unit 351 may function as a user input unit 323, so that the terminal body 301 may not have a separate key.

The strap 10 is worn on the wrist so as to enclose the wrist and may be formed of a flexible material for easy wearing. As an example, the strap 10 may be formed of leather, rubber, silicone, synthetic resin, or the like. The strap 10 may be detachably attached to the terminal body 301, and may be configured to be replaceable by various types of bands according to the user's preference.

On the other hand, the strap 10 can be used to expand the performance of the antenna. For example, the band may include a ground extension (not shown) that is electrically connected to the antenna and extends the ground region.

The strap 10 may be provided with a fastener 12. The fastener 12 may be embodied by a buckle, a snap-fit hook structure, or a velcro (trademark), and may include a stretchable section or material . In this drawing, an example in which the fastener 302a is embodied as a buckle is shown.

The conventional watch-type mobile terminal has a problem that the strap 10 is difficult to attach and detach from the terminal body.

Therefore, the present invention solves the above-described problems, improves the appearance of the watch-type mobile terminal 300, and enables the strap 10 to be easily removed.

FIG. 3 is an exploded perspective view of the strap end attaching apparatus according to the first embodiment of the present invention, FIG. 4 is an exploded perspective view of the strap connecting portion and the strap according to the first embodiment of the present invention, In which the strap connecting portion is removed from the strap end connecting device according to the second embodiment of the present invention.

1 to 5, the mobile terminal 300 according to the first embodiment includes a strap 10 for fixing the terminal body 301 and the terminal body 301, And a strap end attaching device 100 rotatably coupled to the strap end attaching device 100. [

The strap end attaching device 100 allows the end of the strap 10 to be easily detached and to pivotably couple the strap 10. [

For example, the strap end mating device 100 includes a strap connection part 130, a cylinder guide 110, and a tightening cylinder 120.

The cylinder guide 110 defines a space in which the fastening cylinder 120 is received and rotated. The cylinder guide 110 defines a space through which the coupling cylinder 120 enters and leaves.

Specifically, the cylinder guide 110 has a receiving hole 111 in which the coupling cylinder 120 is received. The receiving hole 111 is formed so as to correspond to the connecting cylinder 120 so that the connecting cylinder 120 accommodated therein rotates independently of the cylinder guide 110. The receiving hole 111 is elongated in the axial direction and has a circular shape in the axial cross section.

Further, the cylinder guide 110 is formed with an entrance 112 communicating with the receiving hole 111 and the outside. The entrance 112 is formed by opening one side of the receiving hole 111. 5, the entrance 112 is formed by opening the cylinder guide 110 in a direction perpendicular to the axial direction of the receiving hole 111 from the center of the receiving hole 111. As shown in FIG. That is, the entrance 112 has a shape in which the receiving hole 111 is partly opened in a cross section perpendicular to the axis.

The cylinder guide 110 may be fastened to the terminal body 301 or may be integrally formed with the terminal body 301. When the cylinder guide 110 is coupled to the terminal body 301, it can be coupled to one end of the terminal body 301. Specifically, the cylinder guide 110 can be fitted between the legs 302 protruding from the terminal main body 301. When the cylinder guide 110 is fastened to the terminal body 301, the entrance 112 of the cylinder guide 110 is preferably opened in the lateral direction from the center of the terminal body 301. Here, the display unit of the front surface of the terminal body 301 is disposed, and the rear surface of the terminal body 301 is a surface facing the front surface.

When the cylinder guide 110 is integrally formed with the terminal main body 301, the cylinder guide 110 may be formed by recessing a part of the terminal main body 301.

A space 114 through which the connecting bar 133 of the strap connecting part 130 moves is formed between both axial ends of the cylinder guide 110 and the terminal body 301 when the strap connecting part 130 rotates.

The entrance 112 of the cylinder guide 110 is a space through which the fastening rod 132 of the strap connecting part 130 enters and exits the receiving hole 111. Therefore, it is preferable that the width d of the entrance 112 of the cylinder guide 110 is larger than the diameter of the fastening rod 132.

Also, the entrance 112 of the cylinder guide 110 prevents the tightening cylinder 120 from being detached. Therefore, the width d of the entrance 112 of the cylinder guide 110 is preferably smaller than the diameter of the fastening cylinder 120.

The fastening cylinder 120 is rotatably received in the receiving hole 111 of the cylinder guide 110. The fastening cylinder 120 is freely rotated in the receiving hole 111 and is not released through the entrance 112 of the cylinder guide 110. A plurality of protrusions may be formed on the outer peripheral surface of the fastening cylinder 120 to improve frictional force. More specifically, the axis of the tightening cylinder 120 and the axis of the receiving hole 111 are parallel or coincident. Therefore, the tightening cylinder 120 is rotated about the axis of the receiving hole 111 as the center axis.

The strap connecting part 130 is coupled to the tightening cylinder 120. Specifically, the tightening rod 120 of the tightening cylinder 120 is detachably coupled to the fastening rod 132 of the strap connecting portion 130.

For example, the tightening cylinder 120 includes an engaging groove 121 into which the engaging rod 132 is inserted. The coupling groove 121 is formed by recessing the outer circumferential surface of the coupling cylinder 120 in the center direction in a cross section perpendicular to the axial direction. The engaging groove 121 provides a space in which at least the engaging rod 132 enters and exits, and provides a space to be engaged with the engaging rod 132. [ The engaging groove 121 allows the engaging rod 132 to enter and exit in a direction perpendicular to the axial direction of the receiving hole 111.

Rotation of the tightening cylinder 120 is restrained by the tightening rod 132. Specifically, the coupling rod 132 is coupled to the coupling groove 121 of the coupling cylinder 120 so as to be rotated. More specifically, the fastening holes are formed with latches 135 that engage the inner surfaces of the engaging grooves 121 and include recesses 122 on the inner surface of the engaging grooves 121 where the latches 135 are engaged. Of course, the clamping rod 132 may have a structure such as a tooth surface.

The coupling cylinder 120 is rotated in the receiving hole 111 and the coupling groove 121 is selectively opened and closed by the cylinder guide 110. [ Specifically, when the inlet of the coupling groove 121 of the coupling cylinder 120 is overlapped with the entrance 112 of the cylinder guide 110, the coupling rod 132 enters and exits through the coupling groove 121, The coupling rod 121 can not be inserted or extracted through the coupling groove 121 unless the entrance of the coupling groove 121 of the cylinder guide 120 is overlapped with the entrance 112 of the cylinder guide 110.

One side of the strap connection part 130 is inserted into the engagement groove 121 of the tightening cylinder 120 and the other side of the strap connection part 130 is rotatably engaged with the end of the strap 10.

For example, the strap connection portion 130 includes a pin engagement portion 131 to which the engagement pin 140 coupled to the end of the strap is rotatably engaged, and a fastening rod 132).

The pin coupling portion 131 rotatably supports both ends of the coupling pin 140. The pin-engaging portion 131 is spaced apart from the engaging rod 132. To this end, the strap connection part 130 further includes a connection bar 133. The pin coupling portion 131 is disposed so that the shaft of the coupling pin 140 fastened to the pin coupling portion 131 is aligned with the axial direction of the coupling rod 132.

The fastening rod 132 is inserted into the coupling groove 121 of the fastening cylinder 120. The fastening rod 132 has a long rod shape in one direction so as to enter and exit through the entrance 112 of the cylinder guide 110.

A pin engagement portion 131 is disposed at both ends of the fastening rod 132 in the axial direction.

6 and 7 are sectional views showing the operation of the strap end attaching device according to the first embodiment of the present invention. Figs. 6 and 7 are cross-sectional views taken along a plane perpendicular to the axis of the cylinder guide, and Fig. 8 is a perspective view of the strap end attaching apparatus according to the first embodiment of the present invention.

Referring to FIG. 6, the coupling cylinder 120 is rotatably coupled to the receiving hole 111 of the cylinder guide 110 at the beginning. At this time, the entrance 112 of the cylinder guide 110 is formed in the lateral direction of the terminal main body 301 from the center of the terminal main body 301.

Thereafter, the user rotates the coupling cylinder 120 so that the entrance of the coupling groove 121 of the coupling cylinder 120 and the entrance 112 of the cylinder guide 110 overlap with each other in a cross section perpendicular to the axial direction .

The user then inserts the fastening rod 132 of the strap connecting part 130 into the coupling groove 121 through the entrance 112 of the cylinder guide 110.

7 and 8, the user then rotates the strap connection portion 130 so that the inlet of the coupling groove 121 of the coupling cylinder 120 and the inlet of the cylinder guide 110, So that the entrance 112 does not overlap. That is, the inlet of the coupling groove 121 is closed by the cylinder guide 110.

Also, in the reverse order of the above description, the strap connection portion 130 can be separated from the tightening cylinder 120. [

FIG. 9 is a perspective view of a mobile terminal according to a second embodiment of the present invention, FIG. 10 is an exploded perspective view of a mobile terminal according to a second embodiment of the present invention, FIG. 11 is a perspective view showing a coupling hole according to the second embodiment of the present invention Fig.

Referring to Figs. 9 to 11, the mobile terminal 300A according to the second embodiment is connected to the strap 10 by the strap end mating device 100A of the second embodiment.

The terminal main body 301 of the mobile terminal 300A according to the second embodiment is the same as that of the first embodiment except for the specific description. The strap end attaching device 100A is inserted into the terminal main body 301 and is rotated and fixed.

For example, the strap end attaching apparatus 100A of the second embodiment includes a fixed case 301a, a strap connecting portion 130A, and a rotation restricting portion 160. [

The fixed case 301a has a space in its inside and a coupling hole 150 communicating the inside and the outside. The fixed case 301a may be integrally formed with the terminal body 301 or may be coupled to the terminal body 301. [ Further, the fixed case 301a may be the terminal body 301.

The coupling hole 150 is formed through one surface of the fixed case 301a. The engaging hole 150 defines a space through which the hooking arm 136 of the strap connecting portion 130A passes.

In particular, as shown in Fig. 11, the coupling hole 150 has a shape in which the lateral width and the vertical width are different from each other in a plane perpendicular to the axial direction. In the plane perpendicular to the axial direction, the width of the coupling hole 150 in the first direction is different from the width of the coupling hole 150 in the second direction. Here, the first direction and the second direction intersect with each other. More specifically, the width of the coupling hole 150 in the first direction is larger than the width of the coupling hole 150 in the second direction.

Specifically, the coupling hole 150 includes a central portion 151 and an extended portion 152 that extends at least at one side in the central portion 151. The central portion 151 and the extending portion 152 have a shape corresponding to the hooking arm 136 in cooperation with each other. The hook arm 136 passes through the central portion 151 and the enlarged portion 152 and is rotated around the shaft to be engaged with one surface of the fixed case 301a around the coupling hole 150. [

The rotation restricting portion 160 restricts the rotation of the hooking arm 136. The rotation restricting portion 160 may be realized by a hook arm 136 and a permanent magnet generating a force. At this time, the hooking arm 136 may be made of metal. The rotation restricting portion 160 is disposed around the engaging hole 150 on one side of the fixed case 301a.

One side of the strap connection part 130A is inserted into the engagement hole 150 of the fixed case 301a and the other side is rotatably engaged with the end of the strap 10. [

For example, the strap connection portion 130A includes a pin insertion portion 131 through which a fastening pin 140 coupled to an end portion of the strap is rotatably coupled, And a hooking arm 136 which is rotated by the rotation axis in the axial direction and engaged with the inner surface of the fixed case 301a.

The strap connection portion 130A includes a hook shaft 137 that is inserted into the center portion 151 of the coupling hole 150 and provides a rotation center of the hook arm 136. [ The diameter of the hook shaft 137 corresponds to the central portion 151 of the engaging hole 150 and is smaller than the longitudinal width of the hook arm 136. [ The hooking shaft 137 connects the hooking arm 136 and the pin connecting portion 131.

The hooking arm 136 has a long shape in one direction on a section perpendicular to the axial direction. More specifically, the longitudinal direction width of the hooking arm 136 is smaller than the first direction width of the engaging hole 150, larger than the second direction width of the engaging hole 150, and the unidirectional width of the hooking arm 136, (150).

12 and 13 are conceptual diagrams showing an operation of the strap end attaching device according to the second embodiment of the present invention.

Referring to FIG. 12, the user inserts the hooking arm 136 into the fixing case 301a through the fitting hole 150. FIG.

Referring to Figure 13, the hooking arm 136 is then rotated about its axis. The hooking arm 136 is hooked on the inner surface of the fixed case 301a, and rotation is restricted by the magnetic force of the rotation restricting portion 160. [

FIGS. 14 and 15 are exploded perspective views of a mobile terminal according to a third embodiment of the present invention, and FIG. 16 is an assembled perspective view of a mobile terminal according to a third embodiment of the present invention.

Referring to Figs. 14 to 16, the mobile terminal 100B according to the third embodiment is connected to the strap 10 by the strap end mating device 100B of the third embodiment.

The terminal main body 301 of the mobile terminal 100B according to the third embodiment is the same as that of the second embodiment except for the specific description. The strap end attaching device 100B is inserted and fixed to the terminal main body 301. [

For example, the strap end attaching device 100B of the third embodiment includes a fixed case 301, a strap connecting portion 130B, and a departure restricting portion 170. [

The stationary case 301 has a space therein and a coupling hole 307 communicating the inside and the outside. Here, the fixed case 301 may be integrally formed with the terminal body 301 or may be coupled to the terminal body 301. Further, the fixed case 301 may be the terminal body 301.

The engaging hole 307 is formed through one side of the fixed case 301. The engaging hole 307 forms a space through which the hooking arm 136 of the strap connecting portion 130B passes. The engaging hole 307 has a shape corresponding to the hooking arm 136.

The fixing case 301 is formed with a limiting groove 306 for restricting the rotation of the strap connecting portion 130B. More specifically, the limiting groove 306 is formed by recessing the outer surface of the fixed case 301, and the pin engagement portion 131 of the strap connection portion 130B is inserted.

The release restricting portion 170 restricts the hooking arm 136 from being disengaged from the engagement hole 307. The detachment restricting portion 170 is provided in the fixed case 301 to restrict the detachment of the hooking arm 136 from the engagement hole 307. Specifically, the release restricting portion 170 may have a structure that reduces the area of the engagement hole 307 exposed by the elastic force. As another example, the release restricting portion 170 may have a structure that reduces the width of the coupling hole 307 by the fixing case 301 and the coupling groove 121. The release restricting portion 170 reciprocates from a periphery of the coupling hole 307 to a return spring (not shown), and adjusts the exposed area of the coupling hole 307.

One side of the strap connection portion 130B is inserted into the engagement hole 307 of the fixed case 301 and the other side is rotatably engaged with the end of the strap 10. [

For example, the strap connection portion 130B includes a pin insertion portion 131 through which a fastening pin 140 coupled to an end portion of the strap is rotatably coupled, a fastening hole 140 passing through the fastening hole 307, And includes a hooking arm 136 penetrating therethrough.

The pin engagement portion 131 is formed with a fixing protrusion that is inserted into the outer surface of the stationary case 301. The fixing protrusion determines the fixing position of the strap connecting portion 130B and restricts the flow of the strap connecting portion 130B.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

300: mobile terminal
10: strap
100: Strap end attachment device

Claims

A pin coupling portion rotatably coupled with a coupling pin coupled to an end of the strap, a strap coupling portion having a coupling rod;
A cylinder guide (110) having a receiving hole therein and having an inlet and an outlet communicating with the receiving hole at a cross section perpendicular to the axial direction of the receiving hole;
And a tightening cylinder (120) rotatably received in the receiving hole of the cylinder guide and coupled to the fastening rod of the strap connecting portion,
Wherein the fastening cylinder includes an engaging groove into which the fastening rod (132) is inserted.

The method according to claim 1,
And the tightening cylinder is rotated about a center axis of the receiving hole.

The method according to claim 1,
And the tightening cylinder is restrained in rotation by the tightening rod.

The method according to claim 1,
And the width of the entrance of the cylinder guide is smaller than the diameter of the tightening cylinder.

The method according to claim 1,
And the width of the entrance and exit of the cylinder guide is larger than the diameter of the fastening rod.

The method according to claim 1,
Wherein the tightening cylinder is rotated in the receiving hole so that the engaging groove is selectively opened and closed by the cylinder guide.

A terminal body;
A strap for fixing the terminal main body; And
And a strap end coupling device for rotatably coupling an end of the strap to the terminal body,
The strap end attaching device includes:
A strap connection portion having a fastening rod, a pin coupling portion to which a fastening pin coupled to an end of the strap is rotatably engaged;
A cylinder guide having a receiving hole therein and having an entrance communicating with the receiving hole at an end face perpendicular to the axial direction of the receiving hole;
And a tightening cylinder rotatably received in the receiving hole of the cylinder guide and to which a fastening rod of the strap connecting portion is engaged,
Wherein the fastening cylinder includes an engaging groove into which the fastening rod is inserted.

8. The method of claim 7,
Wherein the cylinder guide is recessed in a region of the terminal main body.

8. The method of claim 7,
And the cylinder guide is coupled to one end of the terminal main body.

A fixed case having a coupling hole communicating between the inside and the outside;
The strap includes a pin engagement portion rotatably coupled to an end of the strap, and a hooking arm passing through the engagement hole and being pivotally connected to an inner surface of the fixed case by an axis of rotation of the engagement hole, A connecting portion; And
And a rotation restricting portion for restricting the rotation of the hooking arm.

11. The method of claim 10,
Wherein the rotation restricting portion is a permanent magnet generating the hooking arm and the attraction force.

12. The method of claim 11,
And the rotation restricting portion is located on the inner surface of the stationary case.

A fixed case having a coupling hole communicating between the inside and the outside;
A strap connection portion including a pin coupling portion to which a coupling pin coupled to an end of the strap is rotatably engaged and a hooking arm which is inserted into the fixing case through the coupling hole to be inserted;
And an escape restricting portion for restricting the hooking arm from being disengaged from the engaging hole.

14. The method of claim 13,
Wherein the release restricting portion reduces the exposed area of the engaging hole by an elastic force.