KR20200078202A - Support for mobile device - Google Patents

Abstract

The technical idea of the present invention is to provide a support for a portable terminal, which can easily fit a location of a portable terminal to a location desired by a user, can keep the mobile terminal in a matched location for a long time, and can be easily carried along with the portable terminal when carrying. To this end, the support for the portable terminal of the present invention is provided on a mounting portion such as a portable terminal or a case of the portable terminal to support the portable terminal. The support for the portable terminal comprises: a fixing portion provided on the mounted portion; an extension portion extending and contracting while being drawn in or withdrawn in the longitudinal direction; a rotating portion provided between the fixing portion and the extension portion and relatively rotating the fixing portion; and an end support portion rotatably provided at the end of the elastic portion.

Description

Support for mobile terminals{Support for mobile device}

The present invention relates to a portable terminal.

In general, a stand for a mobile terminal supports a mobile terminal such as a smart phone or a tablet PC, and is a mechanism that helps a user to use the mobile terminal more conveniently.

The base for the portable terminal is placed on a stationary body such as a table, and a fixed body supporting base supporting the mobile terminal, a hand supporting base supporting a mobile terminal by being inserted into a hand such as a finger, and a long bending allowable member (aka, It can be divided into a bellows-connected pedestal that supports a mobile terminal using "Zara".

Specifically, the fixed-body-supporting base is made of a single body, a support surface on which the portable terminal is raised, an inclined surface to support the rear surface of the portable terminal and provide an inclined angle to the portable terminal mounted on the support surface, and It includes a bottom surface in surface contact with the fixture. The hand-supporting pedestal includes a case for gripping a mobile terminal, a fixing plate attached to the rear surface of the case through an adhesive tape, and a metal finger ring provided on the fixing plate and capable of inserting a user's finger. It includes. The bellows connection type pedestal has a fixed part fixed to a stationary body such as a table, a gripping part for holding a mobile terminal, and a long structure that can be bent therein by connecting the fixing part and the holding part. It is built-in and its outer part includes a bending allowable member wrapped with a shell such as rubber.

However, in the case of the existing stand for a portable terminal, in the case of the existing stationary support-type stand, there is a problem in that it is inconvenient to use because a thick book or the like must be stacked underneath to adjust the height of the portable terminal to fit the eye level. In the case of the hand-supporting stand, it is easy to fit the eye level, but there is a problem that it cannot be used for a long time due to the limitation of the power of the hand or arm that the user can support. Because it hits below the expected position due to the weight of the cantilever structure, it rotates around the fixed end during the strike, so it has to be raised above the expected position to achieve the correct eye height, and it is rotated more than the expected position in consideration of the rotation. There is a problem in that it is difficult to adjust the position, such as having to twist more in the opposite direction of the direction.

Technical problem of the present invention, the mobile terminal can be easily adjusted to the position desired by the user, the mobile terminal can be maintained for a long time in the position, the mobile terminal can be easily carried along with the mobile terminal when carrying It is to provide a dragon stand.

In order to achieve the above object, the base for a mobile terminal according to an embodiment of the present invention is a base for a mobile terminal provided on a mounting portion such as a mobile terminal or a case of the mobile terminal to support the mobile terminal, the mounting portion Fixing portion to be provided; A stretchable part whose length is stretched while being drawn in or drawn out in the longitudinal direction; A rotating portion provided between the fixing portion and the stretching portion and relatively rotating the fixing portion; And an end support rotatably provided at an end of the elastic part.

For example, the fixing part may include a fixing member having the rotating part on one surface; And a double-sided tape that adheres the other surface of the fixing member to the portion to be mounted.

As another example, the fixing portion, a fixing member having the rotating portion on one surface; A magnet provided on one of the other surface of the fixing member and the portion to be mounted; And a magnet reaction member provided on the other surface of the fixing member and the other of the mounting parts and made of a material that reacts with the magnet.

As another example, the fixing unit may include a first fixing member adhered to the mounting portion through a double-sided tape; And a second fixing member having one surface detachably attached to the first fixing member and having the rotating part on the other surface.

The expansion and contraction portion may have a slidable structure in which a plurality of sliding members having different widths and having different widths are formed by folding iron plates or plastic plates in a left and right U-shape, respectively.

The elastic portion, the first sliding member is provided with one end portion in the rotating portion; A second sliding member having a larger width than the first sliding member; And a movement guide unit for guiding the sliding of the first sliding member in the longitudinal direction to the second sliding member.

The moving guide portion may include a portion for receiving and withdrawing the second sliding member provided in the second sliding member, and a portion in which the inside and the outside of the receiving unit are directly contacted so that the first sliding member is drawn in and out.

The expansion and contraction unit may further include a fall prevention unit that prevents the first sliding member from being pulled out of the second sliding member in a state where it is withdrawn from the second sliding member to the maximum.

The fall prevention unit may include a locking member provided on any one of an outer surface of the first sliding member and an inner surface of the second sliding member; And a plurality of fasteners at a lower end of the outer surface of the first sliding member so as to engage the locking member, and may be provided so that the 1 sliding protrusion or the fastener is engaged in the locking groove at the upper end of the inner surface of the second sliding member. .

The expansion and contraction unit may further include a movement stop unit that stops the movement of the first sliding member while the first sliding member is pulled out from the second sliding member.

The moving stop part is provided to the other one of the first sliding member and the second sliding member so that a plurality of locking protrusions and the catches elastically supported on one of the first sliding member and the second sliding member are fitted. It may include; a plurality of locking grooves formed.

The elastic part may further include a third sliding member having a width greater than that of the second sliding member and movably guiding the second sliding member in its longitudinal direction.

The rotating part is provided on the fixing part, the rotating part rotating the clockwise or counter-clockwise direction to implement a roll motion (roll motion) for the mobile terminal; And it is provided in the roll rotation unit and the roll rotation unit tilting (tilting) in the vertical direction, the pitch rotating unit for implementing a pitch motion (pitch motion) for the portable terminal; may include.

The roll rotating portion, the roll hinge shaft provided in the fixing portion; And a roll rotating member provided rotatably on the roll hinge axis.

The pitch rotating portion, the pitch hinge shaft provided at the tip of the elastic portion; And a rotation guide hole provided in the roll rotation member and the pitch hinge axis is rotatably inserted.

When the elastic part is drawn, the distal support part rotates in the forward direction at the end of the elastic part to cover the elastic part, and when the elastic part is drawn out, it is rotated in the reverse direction to the end of the elastic part to support the elastic part.

The end support portion, the end support member is rotatably provided at the end of the elastic portion; And a support area expansion member rotatably provided on the end support member and spreading on one side of the end support member to expand the support area when supporting the elastic part.

The terminal support member may include a receiving groove for the elastic part formed by being recessed on a surface opposite to the elastic part to accommodate the elastic part when the elastic part is covered. The mobile terminal according to the embodiment of the present invention described above For the support, when the distal support portion is rotated in the reverse direction to the distal end portion of the elastic portion may further include an inclined holding projection provided on the distal end portion of the elastic portion so that the end portion is inclined to the elastic portion.

Meanwhile, a stand for a portable terminal according to another embodiment of the present invention is a stand for a portable terminal which is provided on a mounted portion such as a portable terminal or a case of the portable terminal to support the portable terminal, and is provided to be provided on the mounted portion. The government includes a telescopic portion that is provided in the fixing portion and extends in length while being drawn in or out in the longitudinal direction, and an end support portion rotatably provided at an end of the telescopic portion.

As described above, the base for a mobile terminal according to an embodiment of the present invention may have the following effects.

According to an embodiment of the present invention, since it provides a technical configuration including a fixed portion, a telescopic portion, a rotating portion, and an end support portion, the position of the mobile terminal in a manner of extending or contracting the length of the telescopic portion in the longitudinal direction of the telescopic portion The user can easily fit the desired position, and the mobile terminal can be maintained in the corresponding position for a long time with support through the elastic part and the end support part, and after the length of the elastic part is minimized, the end support part is rotated to cover the elastic part. It can be easily carried along with a portable terminal when carrying.

In addition, according to an embodiment of the present invention, the expansion and contraction part has a shape of a plate or an ellipse which is folded in a U-shaped shape between a steel plate or a plastic-made plate, and a sliding structure in which a plurality of sliding members having different widths are drawn in and out from each other. Since it has a (slidable structure), not only can the thickness of the support for the portable terminal of the present invention be realized thinly through a plate or an ellipse shape, it can be stretched by pulling in the longitudinal direction, and vice versa, so that the length can be adjusted. It can be easy.

In addition, according to an embodiment of the present invention, since the elastic portion provides a technical configuration including a first sliding member, a second sliding member, and a moving guide, the first and second sliding members are left and right through the moving guide. It can be drawn out smoothly in the longitudinal direction without shaking.

In addition, according to an embodiment of the present invention, since the first sliding member is provided in the state in which the first sliding member is accommodated in the receiving portion provided in the second sliding member, the first and second sliding members are drawn into each other. Even if they overlap each other, the thickness of the stretchable portion can be minimized, and ultimately, the thickness of the pedestal for the portable terminal of the present invention can be realized more thinly.

In addition, according to an embodiment of the present invention, since the expansion and contraction portion further provides a technical structure including a locking groove and a locking or locking protrusion, the first sliding member is pulled out from the second sliding member to the maximum even if the user pulls it out. It is possible to prevent the sliding member from falling out of the second sliding member.

In addition, according to the embodiment of the present invention, since the expansion and contraction portion provides a technical configuration further including a locking groove and a locking or locking projection, the movement of the first sliding member is stopped while the first sliding member is pulled out from the second sliding member. It is possible to prevent the first sliding member from sliding down along the second sliding member by the load. In particular, when a plurality of stop grooves are provided at intervals along the longitudinal direction of the first sliding member, the stop protrusion may be selectively fitted to any one of the plurality of stop grooves to stop the movement at a position desired by the user.

In addition, according to an embodiment of the present invention, since the stretchable portion further provides a technical configuration including a third slide member, the stretchable portion can be pulled out to a sufficient length through the third slide member.

In addition, according to an embodiment of the present invention, since the rotating portion provides a technical configuration including a roll rotating portion, when the display of the portable terminal is viewed from the front, the fixed portion can be rotated clockwise or counterclockwise, so that the portable terminal For the roll motion (roll motion) can be implemented.

In addition, according to an embodiment of the present invention, since the rotating portion provides a technical configuration further comprising a pitch rotating portion, when the mobile terminal is viewed from the side, the roll rotating portion can be tilted in the vertical direction, so that the pitch motion is performed with respect to the mobile terminal. (pitch motion) can be implemented.

In addition, according to an embodiment of the present invention, since a double-sided tape is provided as a fixing part as an example, the pedestal for the portable terminal of the present invention can be firmly fixed to a mounted part such as a case of a portable terminal or a portable terminal through adhesion, As another example, since a magnet or the like is provided as a fixing part, not only can it be securely fixed through magnetic force, but also can be detached by applying an external force greater than magnetic force, so the pedestal for the mobile terminal of the present invention can be mounted and used only when needed. As another example, first and second fixing members, which are detachably attached to each other as a fixing part, are provided, and thus, the first fixing member that remains on the attachment part when detached is made of a material such as plastic that does not interfere with wireless charging. If selected, smooth wireless charging through a wireless charger can be performed.

In addition, according to an embodiment of the present invention, since the end support portion provides a technical configuration that is reversibly rotatable at the end of the elastic portion, when the elastic portion is drawn, it is rotated in the forward direction to the end of the elastic portion to cover the elastic portion, When withdrawn, it can be rotated in the opposite direction to the end of the elastic portion to support the elastic portion.

In addition, according to an embodiment of the present invention, since the distal support portion provides a technical configuration including a distal support member and a support area expansion member rotatably provided therein, the support area expansion member is disposed in a direction that is open from one side of the end support member. By rotating, the support area can be expanded, so that the portable terminal can be supported more stably.

In addition, according to an embodiment of the present invention, since the end supporting member provides a technical configuration in which the receiving groove for the elastic portion is formed, when the terminal supporting member covers the elastic portion after completely drawing in the elastic portion, the elastic groove may be accommodated in the receiving groove for the elastic portion. It is possible to minimize the thickness of the pedestal for a portable terminal of the present invention when carrying.

1 is a rear perspective view schematically showing a pedestal for a portable terminal according to an embodiment of the present invention. FIG. 2 is a front perspective view schematically showing a pedestal for a portable terminal of FIG. 1. It is a diagram schematically showing a state covered by the distal support member. FIG. 4 is a schematic view showing a rotating part. FIG. 5 is a schematic view showing a bottom surface of the distal support part of the pedestal for a portable terminal of FIG. 1.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

1 is a rear perspective view schematically showing a pedestal for a mobile terminal according to an embodiment of the present invention, and FIG. 2 is a front perspective view schematically showing a pedestal for a mobile terminal of FIG. 1. It is a view schematically showing a state covered by the end support member, FIG. 4 is a view schematically showing the rotating part, and FIG. 5 is a view schematically showing the bottom surface of the end support part of the pedestal for the portable terminal of FIG. 1.

The base 100 for a mobile terminal according to an embodiment of the present invention, as shown in Figures 1 to 5, is provided in the mounting portion 1, such as a mobile terminal or a case of a mobile terminal, a mobile terminal (hereinafter, It is a support for a mobile terminal that supports (1) the same reference numerals as the to-be-attached part, and includes a fixing part 110, a stretching part 120, a rotating part 130, and a distal support part 140. . Hereinafter, each component will be described in detail with reference to FIGS. 1 to 5.

The fixing part 110 is a component for fixing the pedestal 100 for a portable terminal of the present invention to a portion 1 to be mounted, such as a portable terminal or a case of a portable terminal. 1, the fixing part 110 may be provided between the mounted part 1 and the rotating part 130, as shown in FIG. 1.

As an example, the fixing unit 110 may include a fixing member 111 and a double-sided tape (not shown), as shown in FIG. 1. The fixing member 111 may have a rotating portion 130 fixed to one surface thereof, and a double-sided tape (not shown) may attach the other surface of the fixing member 111 to the attachment portion 1. Therefore, through the fixing member 111 and the double-sided tape (not shown), the rotating part 130 of the pedestal 100 for a portable terminal of the present invention can be firmly fixed to the mounted part 1.

As another example, although not shown, the fixing part may include a fixing member, a magnet, and a magnet reaction member. The fixing member may have a rotating portion fixed to one surface thereof, a magnet may be provided on either the other surface of the fixing member or a mounting portion, and a magnet reaction member may be provided on the other surface of the fixing member or the other of the mounting portion, It can be made of a material that reacts to the magnet. Here, the material reacting with the magnet may be a magnet having the opposite polarity to the magnet described above, or may be a ferromagnetic material such as iron, nickel, or cobalt. Therefore, through a magnet or the like, the rotating part 130 of the pedestal 100 for the portable terminal of the present invention can be firmly fixed to the attachment part 1, and can be removed by applying an external force greater than the magnetic force. The pedestal 100 for a mobile terminal can be mounted on the to-be-attached part 1 only when necessary.

As another example, although not shown, the fixing unit may include a first fixing member and a second fixing member. The first fixing member may be adhered to a portion to be mounted through a double-sided tape, one surface of the second fixing member may be detachably provided on the first fixing member, and the rotating part may be fixed to the other surface of the second fixing member. . For reference, although not shown, for a detachable structure, a rail is provided on one surface of the second fixing member, and a rail guider may be provided on the first fixing member to correspond to the rail. Therefore, when the first and second fixing members are detachable from each other and the first fixing member that remains on the mounting portion when removed is made of a material such as plastic that is not interfered with wireless charging, smooth wireless charging through the wireless charger can be performed. Can.

The elastic part 120 is a component for substantially adjusting the height of the portable terminal 1. 1, the expansion and contraction unit 120 may be mounted on the rotation unit 130 as shown in FIG. 1, and the length may be stretched as it is drawn in or out in the longitudinal direction. As another example, although not shown, in the case of a type without the rotating part 130, the elastic part 120 may be provided in the fixing part 110.

Therefore, the position of the mobile terminal 1 can be easily adjusted to a position desired by the user by extending or contracting the length of the stretchable part 120 in the longitudinal direction of the stretchable part 120, and the end support 140 and Together, the mobile terminal 1 can be maintained for a long time in a position in which the mobile terminal 1 is supported by the support through the expansion and contraction unit 120, and the length of the expansion and contraction unit 120 is minimized. For example, the elastic part 120, as shown in Figs. 1 to 2, the sliding member is a plate made of iron or a plastic material, right and left folded in the shape of a c-shaped plate or oval shape. By having each of the plurality of sliding members (S10) having different widths from each other may have a slidable structure (slidable structure) that is drawn in and out from each other. Therefore, the thickness of the base 100 for the mobile terminal of the present invention (see FIG. 3) can be realized thinly, or through a structure having a left or right folded plate or oval shape of a plastic material plate in a c-shape, When it is pulled in the longitudinal direction, it is stretched and vice versa, so that it can be stretched and easy to adjust its length. Specifically, as shown in FIG. 1, the first and second sliding members (S11), It may include a second sliding member (S12). The first sliding member (S11) has a plate or oval shape, and one end thereof may be provided on the rotating part 130, and the second sliding member (S12) is a plate in which the left and right sides of an iron plate or a plastic material plate are folded in a U shape. Alternatively, it may have an elliptical shape, but may have a width larger than that of the first sliding member S11, and the moving guide M10 may guide sliding of the first sliding member in the longitudinal direction with respect to the second sliding member. . Accordingly, the first and second sliding members S11 and S12 can be smoothly drawn in and out of the longitudinal direction through the moving guide portion. Further, the two sliding members S12 are illustrated in FIG. 2. As described above, it may include an accommodating portion M10 for drawing in and out (a space accommodating the first sliding member) and a locking groove M12. The receiving and receiving portion M10 may be provided on the second sliding member so that the first sliding member is drawn in and out in an accommodated form. The catch (M11) is provided at the bottom of the inner surface of the first sliding member (S11), but not shown, as another example, a locking groove is formed on the outer surface of the first sliding member, and a catch may be formed on the inner surface of the receiving/receiving portion Therefore, the first sliding member S11 may be drawn in and out while the first sliding member S11 is accommodated in the receiving/detaching unit M11 provided in the second sliding member S12, so that the first and second sliding members S11 are provided. Even if (S12) is inserted into each other and overlaps each other, the thickness of the telescopic part 120 can be minimized, and ultimately, the thickness of the pedestal 100 for the portable terminal of the present invention (refer to FIG. 3) can be realized more thinly. (M11) is provided at the bottom of the inner surface of the first sliding member (S11), and the locking groove (M12) is provided at the top of the inner surface of the second sliding member (S12). The first sliding member S11 may also serve to stop the movement of the first sliding member S11 in the state in which it is withdrawn from the second sliding member S12. Therefore, the first sliding member S11 is the second It is possible to stop the movement of the first sliding member S11 in the state withdrawn from the sliding member S12, so that the first sliding member S11 slides down along the second sliding member S12 by the load. ) Can be prevented. In particular, although not shown, when a plurality of engaging grooves (M12) are provided at intervals along the length direction of the first sliding member, the locking mechanism (M11) is selectively fitted to any one of the plurality of stopping grooves while the user desires the location In addition, the expansion and contraction unit 120, as shown in Figure 1, has a larger width than the second sliding member (S12), the second sliding member (S12) can be moved in its longitudinal direction It may further include a third sliding member (S13) to guide. Therefore, the stretchable part 120 can be pulled out to a sufficient length through the third sliding member S13. Of course, although not shown, in order to further extend the length, the stretchable portion may include four or more sliding members.

The rotating unit 130 is a component that relatively rotates the fixing unit 110 with respect to the expansion and contraction unit 120 and provides rotation motion with respect to the portable terminal 1. 1, the rotating part 130 may be provided between the fixing part 110 and the stretching part 120, as shown in FIG. 1.

Specifically, the rotating part 130 may include a rotating part R10. The roll rotating unit R10 may be provided on the fixing unit 110, and rotates the fixing unit 110 clockwise or counterclockwise based on looking at the display of the portable terminal 1 from the front. It can serve to implement roll motion for 1). For example, as shown in FIG. 4, the roll rotating part R10 includes a roll hinge shaft R11 provided on the fixing part 110 and a roll rotating member rotatably provided on the roll hinge axis R11. (R12). Further, the rotating unit 130 may further include a pitch rotating unit (P10). Pitch rotating part

(P10) may be provided on the roll rotation unit (R10), relative to the mobile terminal 1 by tilting the roll rotation unit (R10) in the vertical direction based on looking at the side of the portable terminal (1) Pitch motion can be implemented. For example, the pitch rotation part P10 includes a pitch hinge axis P11 provided at the tip of the expansion/contraction part 120, and a roll rotation member.

It is provided in (R12) and may include a rotation guide hole (not shown) in which the pitch hinge shaft P11 is rotatably inserted. The terminal support 140 is a bottom of the base 100 for a mobile terminal of the present invention. It is a component for acting as a supporter. 1 and 5, the end support 140 may be provided to be rotated in the forward and reverse directions at the end of the expansion and contraction section 120. In particular, the end support section 140 has a stretching section 120 When drawn in, it is rotated in the forward direction to the end of the stretchable part 120 to cover the stretchable part 120 (see FIG. 3 ), and when the stretchable part 120 is drawn out, it rotates in the reverse direction to the end of the stretchable part 120 Become new construction

(See FIG. 1). Further, as shown in FIGS. 1 and 5, the end support 140 may include a end support member 141 and a support area expansion member 142. Can. The distal support member 141 may be rotatably provided at the distal end of the telescopic portion 120, and the support region expansion member 142 may be rotatably provided at the distal support member 141, and the telescopic portion 120 may be provided. When supported, it is opened at one side of the distal support member 141 and the support region can be expanded. Therefore, the support area expansion member 142 can be rotated in a direction apart from one side of the end support member 141 to expand the support area, so that the portable terminal 1 can be supported more stably. 3, as shown in Figure 3, may further include a receiving groove (141a) for the expansion and contraction formed on the bottom surface. Therefore, when the telescopic portion 120 is completely drawn in, and the terminal support member 141 is rotated in the forward direction to cover the telescopic portion 120 (see FIG. 3), the telescopic portion 120 in the receiving groove 141a for the telescopic portion To accommodate, it is possible to minimize the thickness of the base 100 for a mobile terminal of the present invention when carrying. In addition, the base 100 for a mobile terminal according to an embodiment of the present invention, Figure 1 , It may further include an inclined holding projection 150 provided at the distal end of the expansion and contraction unit 120. Therefore, when the distal support 140 is rotated in the reverse direction to the distal end of the elastic part 120, the distal support part 140 may be caught in the elastic part 120 in an inclined shape through the inclined retaining protrusion 150. Although the preferred embodiments of the present invention have been described in detail, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1: Attached part (mobile phone terminal or case
100: stand for a mobile terminal 110: fixing part
111: fixing member 120: expansion and contraction
S10: Multiple sliding member S11: First sliding member
S12: Second sliding member S13: Third sliding member
M10: Receptacle for drawing in and out M11: Clamp M12: Clamping groove
130: rotating part R10: roll rotating part
R11: Roll hinge axis R12: Roll rotating member
P10: Pitch rotating part P11: Pitch hinge shaft
P12: rotation guide hole 140: end support
141: end support member 141a: receiving groove for telescopic portion
142: base area expansion member 150: inclined retaining projection

Claims (5)

A portable terminal or a support for a portable terminal provided in a mounted portion of a case such as a case of the portable terminal to support the portable terminal, a fixing portion provided in the mounted portion; a telescopic portion extending in length while being drawn in or out in the longitudinal direction; A base for a mobile terminal including a rotating part which is provided between the fixing part and the elastic part and rotates relative to the fixed part and an end support rotatably provided at an end of the elastic part. In claim 1, The expansion and contraction, The mobile terminal having a slidable structure in which a plurality of sliding members having different widths from each other, each having a left and right folded plate or an elliptical shape in a U-shape on the left and right sides of a steel plate or a plastic-made plate, respectively. Dragon stand. According to claim 1, The elastic portion, A first sliding member having one end provided on the rotating portion; A second sliding member having a larger width than the first sliding member; And a moving guide for guiding the sliding of the first sliding member in the longitudinal direction to the second sliding member. In claim 3, The movement guide portion is a terminal for a terminal including a locking groove provided on the inner surface of the first sliding member and a locking groove provided on the inner surface of the second sliding member. A portable terminal or a support for a portable terminal provided on an attached portion of a case such as a case of the portable terminal to support the portable terminal. A stretchable part to be stretched; And a terminal support rotatably provided at an end of the elastic part.

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