JP7366395B2 - Plug removal prevention device - Google Patents

Description

The present invention relates to a plug removal prevention device.

For example, a plug removal prevention device is used to prevent the plug from being removed from the socket of an electronic device, and is made of a rectangular cylindrical base member fixed to the electronic device and a wire rod. a holder, the holder includes a pair of extension parts that can be inserted into the inside of the base member, and a U-shaped hook formed by bending the ends of the pair of extension parts. , the pair of extending parts are provided with engaging parts that protrude outward, and engagement holes that can be engaged with the engaging parts are provided on both sides of the base member. A "plug removal prevention device" has been proposed (see Patent Document 1).

Japanese Patent Application Publication No. 2018-18811

The plug removal prevention tool described in Patent Document 1 is excellent in that it can be used repeatedly and generates almost no sound when it is attached or detached.

On the other hand, since the base member of the plug removal prevention device is fixed to the back side of the electronic device, the electronic device is unstable and shakes when placed on a table or the like.

Furthermore, although the above-mentioned plug removal prevention device can be adjusted in stages according to the size of the plug, the adjustment may not be effective depending on the size of the plug.

The present invention is intended to solve at least one of the above problems, and provides a plug removal prevention device that can be attached to the display side of an electronic device and can be adjusted steplessly according to various plug sizes. The purpose is to provide.

One aspect of the present invention that solves the above problems is a plug removal prevention device for preventing a plug from being removed from a socket of an electronic device, which is formed of a fastener and a wire, and is restrained by the fastener. The fastener includes a pair of fastening holes that are open on the front end surface and extend rearward, and a pair of fixing holes that are open on the top surface, extend downward, and communicate with the fastening holes. The holder includes a restraining part that is approximately U-shaped in front view, and a pair of leg parts that are connected to both ends of the restraining part, and a portion distal to the restraining part is inserted into the fastening hole. have

In the plug removal prevention device, the fixing hole may open near the front end of the upper surface of the fastener.

In the plug removal prevention device, the center of the fastening hole may be located below the center of the thickness of the fastener.

In the above-mentioned plug removal prevention tool, the fastener may have a rounded surface formed in a portion where the upper surface and the outer circumferential surface are in contact with each other.

In the plug removal prevention device, the fastener may have a connecting portion and a pair of arm portions extending forward from both ends of the connecting portion, and may have a substantially U-shape in plan view.

In the above-described plug removal prevention device, the arm portion may have a rounded surface formed in a portion where the inner surface and the upper surface contact and a portion where the inner surface and the front end surface contact.

The connecting portion and the arm portion may have an R surface formed at a portion where their inner surfaces contact each other.

In the plug removal prevention device, the connecting portion may have an upper surface lower than the arm portion.

In the above-mentioned plug removal prevention device, the leg portion includes an extending portion extending rearward from the suppressing portion, a avoiding portion extending laterally from the extending portion facing away from the other leg, and a avoiding portion extending rearward from the avoiding portion. It may also have an extending restraint part.

In the above-mentioned plug removal prevention device, the fixing hole has a thread formed on an inner peripheral surface, and the plug removal prevention device screws into the fixing hole, and the leg portion restrained by the fastening hole is fixed to the fixing hole. It may also include a fixing member fixed to the hole.

According to the present invention, it is possible to provide a plug removal prevention tool that can be attached to the display screen side of an electronic device and can be adjusted steplessly according to the size of the plug.

Problems, configurations, and effects other than those described above will be made clear by the description of the embodiments below.

FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a cross-sectional view taken along the line CC in FIG. FIG. 2 is (a) a plan view of another example, and (b) a sectional view taken along the line CC of another example of the fastener of the plug removal prevention device of FIG. 1. FIG. It is (a) a top view, (b) a front view, and (c) a side view of a holder of a plug removal prevention device concerning one embodiment of the present invention. FIG. 4 is a plan view of another example of the holder of the plug removal prevention device shown in FIG. 3; FIG. 2 is a perspective view showing the usage state of the plug removal prevention device according to an embodiment of the present invention, (a) before the plug and the holder are attached, and (b) after the plug and the holder are attached. They are (a) a top view and (b) a front view of a fastener of a plug removal prevention tool concerning other embodiments of the present invention. 7A is a cross-sectional view taken along the line CC and FIG. 6B is a cross-sectional view taken along the line K-K of the fastener shown in FIG. 6. FIG. FIG. 7 is a sectional view taken along the line CC of another example of the fastener of the plug removal prevention device shown in FIG. 6; They are (a) a top view, (b) a front view, and (c) a side view of a holder of a plug removal prevention device according to another embodiment of the present invention. It is a perspective view which shows the usage state of the plug removal prevention tool based on other embodiment of this invention, (a) is a figure before a holder is attached, (b) is a figure which shows after a holder is attached.

Examples of embodiments of the present invention will be described below with reference to the drawings. In addition, below, each structure of this invention is demonstrated with the front side as a front end (front), and the back side as a back end (rear). In the drawings, X indicates the left-right direction (horizontal direction), Y indicates the front-back direction (length direction), and Z indicates the up-down direction (thickness direction).

<Embodiment 1>
FIG. 1 is (a) a plan view, (b) a front view, and (c) a sectional view taken along the line CC in FIG. 2 is (a) a plan view of another example and (b) a sectional view taken along the line CC of another example of the fastener. FIG. 5 is a perspective view showing how the plug removal prevention device according to an embodiment of the present invention is used, (a) before the plug and the holder are attached, and (b) after the plug and the holder are attached.

The plug removal prevention device of this embodiment is for preventing the plug B from being removed from the socket A1 of the electronic device A, as shown in FIG. The electronic device A is, for example, a tablet computer or a terminal device. The plug removal prevention tool 10 includes a fastener 20, a holder 30, and a fixing member 40. In use, the fastener 20 is attached and fixed on the surface of the electronic device A on the display section (screen) A2 side so as to be located above the socket A1 or on an extension thereof.

The fastener 20 is compactly formed. The fastener 20 has a length E that does not cover the display section A2 in a used state. In other words, the length E of the fastener 20 is smaller than the distance I from the end (front end) of the electronic device A on the socket A1 side to the edge of the display section A2. Thereby, even if the fastener 20 is attached to the surface on the display section A2 side, it does not interfere with the use of the electronic device A.

The fastener 20 is solid and made of a resin material such as polycarbonate. As an example, the fastener 20 is formed into a substantially rectangular shape in a plan view. Preferably, the fastener 20 is rounded (with a radius of curvature R1) at a portion where the upper surface and the outer peripheral surface are in contact to form an rounded surface. This is to prevent the corners from getting caught on the user's hands since the fastener 20 is fixed to the surface on the side of the display section A2 and is often touched by the user's hands.

The fastener 20 has an opening 211 on its front end surface and is provided with a pair of fastening holes 21 that extend rearward. The pair of fastening holes 21 are provided symmetrically on the left and right sides of the center line D. The retaining hole 21 is preferably a bottomed hole having a hole bottom 212. The hole diameter of the fastening hole 21 is slightly larger than the wire diameter of the leg portion of the holder 30, which will be described later, and is just large enough to allow the leg portion to be inserted.

The center of the fixing hole 21 is located below the center H of thickness. This is to bring the holder, which will be described later and is bound by the fastening hole 21, closer to the plug B to reduce wobbling.

The fastener 20 is provided with a pair of fixing holes 22 that are open on the top surface, extend downward, and communicate with the fastening holes 21 . That is, the fixing hole 22 is provided directly above the fastening hole 21 so as to intersect with the fastening hole 21 . The fixing hole 22 is provided with a thread on its inner peripheral surface, and a fixing member 40, which will be described later, is screwed into the fixing hole 22.

The fixing hole 22 is preferably provided near the front end of the upper surface of the fastener 20, that is, at a position close to the opening 211 of the fastening hole 21. By reducing the distance G from the fixing hole 22 to the front end, the holder can be fixed near the front end, and the length E of the fastener 20 can be set small.

The width F of the fastener 20 may be a size that allows the pair of fastening holes 21 to be lined up. In this way, the fastener 20 has a simple structure, so it can be made compact not only in length but also in width.

As shown in FIG. 2(a), two pairs of fixing holes 22 may be provided. As described above, one pair may be provided near the front end, and one pair may be provided near the rear end, on the near side of the hole bottom 212.

Moreover, although the fixing hole 22 is a bottomed hole in FIG. 1(c) and communicates with the fastening hole 21 at the lower part, it may be a through hole as shown in FIG. 2(b). In this case, the fixing hole 22 penetrates to the lower surface of the fastener 20 and communicates with the fastening hole 21 between the upper and lower parts, preferably at a position lower than the center H of the thickness as shown. Even if the fixing hole 22 is provided in this manner, the same function can be achieved and the processing cost can also be reduced.

FIG. 3 is (a) a plan view, (b) a front view, and (c) a side view of a holder of a plug removal prevention device according to an embodiment of the present invention, and FIG. 4 is a plan view of another example of the holder. It is a diagram.

The holder 30 has a restraining part 31 that restrains the plug B toward the socket A1, and a pair of legs 32 that are restrained by the fastening hole 21. The holder 30 is made of wire. The holder 30 is made of, for example, a metal wire and is elastically deformable.

The restraining portion 31 has a substantially U-shape when viewed from the front. The suppressing portion 31 is formed laterally symmetrically about the center line P, and includes a bottom portion 311 forming a U-shaped bottom, and a pair of rising portions 312 extending upward from both ends of the bottom portion 311. The bottom portion 311 may have an arc shape as shown in the figure, or may have another shape such as a straight shape depending on the shape of the base B1 of the plug B. The pair of rising parts 312 may have a shape that is slightly spread outward so as to extend slightly diagonally outward.

The pair of leg portions 32 are connected to both ends of the rising portion 312 of the restraining portion 31, respectively. When the leg portion 32 is in use, a portion (proximal portion) close to the holding portion 31 is located above the plug B, and a portion (distal portion) away from the holding portion 31 is inserted into the fastening hole 21. Ru. The portion of the leg portion 32 inserted into the fastening hole 21 is restrained from vertical and horizontal movement by the fastening hole 21, but movement in the front-back direction is not restricted. That is, the insertion distance of the leg portion 32 can be adjusted steplessly by the length of the fastening hole 21. Thereby, the protruding distance of the holding part 31 from the fastener 20 can be adjusted steplessly, and it is possible to accommodate various sizes of plugs.

The pair of legs 32 may be inclined diagonally outward so that the legs are spread apart, and the distance M between the rear ends is larger than the distance N between the front ends. The distance M between the rear ends is larger than the distance between the pair of fastening holes 21, and when both legs 32 are inserted into the fastening holes 21, a spring force is generated in the leg opening direction, and the restraining force that fastens the legs 32 to the fastening holes 21 becomes stronger. .

In the holder 30 shown in FIG. 4, the length L of the leg portion 32 is shorter than the leg portion shown in FIG. 3. The plug removal prevention tool 10 may include a plurality of holders 30 having different leg lengths. Even in this case, the fastener 20 does not require any additional configuration and can be realized simply.

The fixing member 40 is screwed into the fixing hole 22 , presses down the leg portion 32 restrained by the fixing hole 21 from above, and fixes it in the fixing hole 21 . As a result, the leg portion 32 restrained within the fastening hole 21 is restrained from moving in the front-back direction and is fixed to the fastener 20. The fixing member 40 is, for example, a screw member such as a potato screw.

As shown in FIG. 5A, when in use, the fastener 20 is first attached on the lower surface side to a position above the socket A1 on the surface of the electronic device A on the display section A2 side. The attachment method is not limited, and may be attached using an adhesive sticker or the like. As illustrated, the fastener 20 is located at a position that does not cover the display section A2.

As shown in FIG. 5(b), the leg portions 32 of the holder 30 are fixed to the fastening holes 21 such that the holding portions 31 have a protruding distance that suppresses the base B1 of the plug B toward the socket A1. More specifically, in the holder 30, the rear ends of the legs 32 are inserted into the fastening holes 21 so that the plug B is placed on the bottom of the holding part 31. In this state, the legs 32 are restrained from moving in the vertical and horizontal directions by the fastening holes 21, but are not restrained from moving forward and backward. Next, the leg portion 32 is moved back and forth to adjust the insertion distance, and the fixing member 40 is screwed into the fixing hole 22 at a position where the suppressing portion 31 contacts the root B1 and suppresses the root B1 toward the socket A1 side. and press down the leg portion 32 from above to fix it. The fixing member 40 may be temporarily tightened at a position close to the opening of the fixing hole 22, and then further tightened and fixed after adjusting the insertion distance of the leg portion 32.

The illustrated plug B is an example, and the plug removal prevention device 10 can also be applied to plugs having other shapes such as an L-shape at the base.

By configuring the plug removal prevention tool 10 as described above, it can be formed compactly and can be installed on the surface on the display section A2 side so as not to interfere with its use. Further, the protruding distance of the holding portion 31 can be adjusted steplessly, and various plugs can be accommodated. Since the plug removal prevention device 10 has a simple configuration, it is also excellent in terms of cost.

<Embodiment 2>
FIG. 6 shows (a) a plan view and (b) a front view of a fastener of a plug removal prevention device according to another embodiment of the present invention, and FIG. 7 shows (a) CC of the fastener of FIG. (b) A sectional view taken along the line KK, FIG. 8 is a sectional view taken along the line CC of another example of the fastener, and FIG. 9 is a sectional view taken along the line CC of another example of the fastener. (a) Plan view, (b) Front view, and (c) Side view of other examples of the holder, and FIG. 10 is a perspective view showing the usage state of the plug removal prevention device according to another embodiment of the present invention. FIG. 2 is a diagram showing (a) before the holder is attached, and (b) after the holder is attached.

As shown in FIG. 10, the electronic device A may be provided with an operation button A3 (for example, a home button) above the socket A1 or on an extension thereof. The plug removal prevention tool 10a of this embodiment is suitable for such electronic equipment A. In the following, the same components as the plug removal prevention device 10 described above will be given the same reference numerals, and the explanation thereof will be omitted as appropriate, and the explanation will focus on the different points.

As shown in the figure, the fastener 20a of the plug removal prevention device 10a has a shape that is largely cut backward from the front end. More specifically, the fastener 20a has a connecting portion 201a and a pair of arm portions 202a extending forward from both ends of the connecting portion 201a, and is substantially U-shaped with an opening downward in plan view. Preferably, the fastener 20a is formed symmetrically about the center line D. The fastener 20a has a notch in this manner and is formed into a U-shape, so that it can be installed around the operation button A3 of the electronic device A.

Preferably, the fastener 20a has a substantially U-shape in which the upper surface of the connecting portion 201a is lower than the upper surface of the arm portion 202a, and opens upward when viewed from the front. In other words, the connecting portion 201a is thinner than the arm portion 202a and has a lower height than the arm portion 202a. The user often performs operations such as moving his or her finger from the operation button A3 to the display section A2 or from the display section A2 to the operation button A3, and this configuration enables smooth operation.

In the fastener 20a, for example, an inner space formed by being surrounded by the connecting portion 201a and both arm portions 202a, that is, a notch portion is approximately rectangular. The width J of the notch is set to be larger than the operating button A3 by a predetermined width in consideration of operability. An R surface (radius of curvature R2) may be formed at a portion where the inner surface of the connecting portion 201a and the inner surface of the arm portion 202a contact.

Further, in the fastener 20a, a rounded surface may be formed at a portion where the inner surface and the upper surface of the connecting portion 201a and the arm portion 202a are in contact with each other. The radius of curvature of this R surface (for example, radius of curvature R3) is set to be larger than that of the R surface (radius of curvature R1) at the portion where the upper surface and the outer peripheral surface are in contact. The arm portion 202a may have a rounded surface formed at a portion where the inner surface and the front end surface are in contact with each other. Further, an R surface (radius of curvature R4) may be formed at a portion where the upper surface of the connecting portion 201a and the arm portion 202a are connected. By having such a rounded shape, the user's fingers can move smoothly during operation, and operability is ensured.

In the fastener 20a, a pair of fastening holes 21 are provided in each of the pair of arm portions 202a. The fastening hole 21 may be provided closer to the outside than the center of the arm portion 202a as shown in the figure. The pair of fixing holes 22 are provided so as to open on the upper surface of the arm portion 202a, extend downward, and communicate with the fastening holes 21. A thread is provided on the inner peripheral surface of the fixing hole 22, and a fixing member 40, which will be described later, is screwed into the fixing hole 22.

The width of the arm portion 202a in the left-right direction may be any width as long as the fastening hole 21 can be formed therein. In this way, the fastener 20a has a simple structure, so it can be made compact not only in length but also in width.

In addition, although the fixing hole 22 is a bottomed hole in FIG. 7A and communicates with the fixing hole 21 at the lower part, it may be a through hole as shown in FIG. 8. In this case, the fixing hole 22 penetrates to the lower surface of the fastener 20 and communicates with the fastening hole 21 between the upper and lower parts, preferably at a position lower than the center H of the thickness as shown. Even if the fixing hole 22 is provided in this manner, the same function can be achieved and the processing cost can also be reduced.

The holder 30a is formed such that a pair of legs 32a are bent in a stepwise manner. More specifically, the leg portion 32a includes an extending portion 321a extending rearward from the restraining portion 31, an avoidance portion 322a extending laterally from the extender portion 321a toward the other leg, and an elongated portion 322a extending rearward from the avoidance portion 322a. It has a restraining part 323a extending to .

In use, the leg portion 32a is such that the holding portion 31 holds down the base B1 of the plug B, the extending portion 321a is located above the root of the plug B, and the avoidance portion 322a is located on both sides along the front end of the electronic device A. It is bent and the restraint part 323a is inserted into the fastening hole 21.

As shown in FIG. 10(a), when in use, the fastener 20a is placed around the operation button A3 on the display section A2 side of the electronic device A on the lower surface side, and above the socket A1. installed and fixed. As illustrated, the fastener 20a is located at a position that does not cover the display section A2, and is located around the operation button A3 at a predetermined distance.

As shown in FIG. 10(b), in the holder 30a, the restraining part 323a of the leg part 32a is inserted into the fastening hole 21 so that the plug B is placed on the bottom of the restraining part 31. In this state, the leg portion 32a is restrained by the fastening hole 21 from moving in the vertical and horizontal directions, but is not restrained from moving forward and backward. Next, adjust the insertion distance by moving the leg part 32a in the front-back direction, and at the position where the restraining part 31 contacts the base B1 and is restrained to the socket A1 side, the restraining part 323a of the leg part 32a is moved from above with the fixing member 40. Press and secure.

The plug removal prevention tool 10a has the same effect as the above embodiment by being configured as described above. Furthermore, the plug disconnection prevention device 10a has the fastener 20a in the above-mentioned substantially U-shape and the holding device 30a in the above-mentioned step-like shape, so that it can be used even when the operation button A3 is located above the socket A1 of the electronic device A. , can be attached to the surface of the display section A2 without interfering with its use. Moreover, since the fastener 20a has a shape with rounded corners (portions where the surfaces touch each other) as described above, operability is also ensured. Furthermore, it is possible to prevent the fastener 20a from coming off due to getting caught on hands or fingers.

Although the embodiments of the plug removal prevention device according to the present invention have been described above, these are only examples of the present invention, and the present invention is not limited thereto. The present invention includes combinations of the above embodiments and their modifications, as well as various modifications. Various additions, changes, and partial deletions are possible without departing from the conceptual idea and gist of the present invention derived from the content defined in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 10... Plug removal prevention tool, 20, 20a... Fastener, 201a... Connection part, 202a... Arm part, 21... Fastening hole, 211... Opening, 212... Hole bottom, 22... Fixing hole, 30, 30a... Holder, 31... Suppressing part, 32, 32a... Leg part, 321a... Extending part, 322a... Avoiding part, 323a... Restraining part, 40... Fixing member

Claims (11)

A plug removal prevention device for preventing the plug from being removed from the socket of an electronic device,
a fastener; and a retainer formed of a wire rod and bound to the fastener,
The fastener is
A pair of fastening holes that are open on the front end surface and extend rearward, and a pair of fixing holes that are open on the top surface and extend downward and communicate with the fastening holes, the pair of fastening holes and the pair of fastening holes. holes are formed in the same member;
The holder is
A holding part that is approximately U-shaped when viewed from the front;
A plug removal prevention device comprising: a pair of leg portions that are connected to both ends of the suppressing portion, and a portion distal to the suppressing portion is inserted into the fastening hole. The plug removal prevention device according to claim 1,
The holding portion has a bottom that is convex in a direction opposite to the fastener.
A plug removal prevention device characterized by: The plug removal prevention device according to claim 1 or 2 ,
The plug removal prevention tool is characterized in that the fixing hole opens near the front end of the upper surface of the fastener. A plug removal prevention device for preventing the plug from being removed from the socket of an electronic device,
a fastener; and a retainer formed of a wire rod and bound to the fastener,
The fastener is
a pair of fastening holes opening in the front end surface and extending rearward;
a pair of fixing holes that are open on the top surface and extend downward and communicate with the fixing holes;
The holder is
A holding part that is approximately U-shaped when viewed from the front;
a pair of legs that are connected to both ends of the restraining part and whose portions distal to the restraining part are inserted into the fastening hole;
The plug removal prevention tool is characterized in that the center of the fastening hole is located below the center of the thickness of the fastener. The plug removal prevention device according to any one of claims 1 to 4 ,
The plug removal prevention device is characterized in that the fastener has a rounded surface formed at a portion where the upper surface and the outer circumferential surface are in contact with each other. A plug removal prevention device for preventing the plug from being removed from the socket of an electronic device,
a fastener; and a retainer formed of a wire rod and bound to the fastener,
The fastener is
a pair of fastening holes opening in the front end surface and extending rearward;
a pair of fixing holes that are open on the top surface and extend downward and communicate with the fixing holes;
The holder is
A holding part that is approximately U-shaped when viewed from the front;
a pair of legs that are connected to both ends of the restraining part and whose portions distal to the restraining part are inserted into the fastening hole;
The plug removal prevention device is characterized in that the fastener has a connecting portion and a pair of arm portions extending forward from both ends of the connecting portion, and has a substantially U-shape in plan view. The plug removal prevention device according to claim 6 ,
The plug removal prevention device is characterized in that the arm portion has a rounded surface formed at a portion where the inner surface and the upper surface contact and a portion where the inner surface and the front end surface contact. The plug removal prevention device according to claim 6 or 7 ,
The plug removal prevention device is characterized in that the connecting portion and the arm portion have a rounded surface formed at a portion where their inner surfaces contact each other. The plug removal prevention device according to any one of claims 6 to 8 ,
The plug removal prevention device is characterized in that the connecting portion has an upper surface lower than the arm portion. The plug removal prevention device according to any one of claims 6 to 9 ,
The leg portion may include an extending portion extending rearward from the restraining portion, a avoiding portion extending laterally from the extending portion facing away from the other leg, and a restraining portion extending rearward from the avoiding portion. A plug removal prevention device featuring the following. The plug removal prevention device according to any one of claims 1 to 10 ,
The fixing hole has a thread formed on its inner peripheral surface,
The plug removal prevention device includes a fixing member that is screwed into the fixing hole and fixes the leg portion restrained by the fixing hole to the fixing hole.

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