Portable machine gripping aid

Abstract

This invention provides a gripping aid for portable devices that offers a stable grip and functions as a stand when a mobile phone is placed upright on a desk or other surface. [Solution] The handheld device gripping aid 1 comprises a mounting portion 100 attached to the back of the handheld device, a grip portion 200 positioned away from the mounting portion in a direction perpendicular to the back of the handheld device, and an extendable portion 300 connecting the mounting portion and the grip portion, which is configured to extend and retract in a direction perpendicular to the back of the handheld device, the extendable portion containing a soft silicone-based elastic material.

Description

[TECHNICAL FIELD]

[0001] The present invention relates to a grip assisting device for portable devices, and more particularly, to a grip assisting device for portable devices that is attached to the back surface of a mobile phone or a mobile phone case to provide a stable grip feeling, and can function as a stand when the mobile phone is placed upright on a desk or the like. [BACKGROUND ART]

[0002] Generally, as one of accessories for portable devices such as mobile phones, a grip tok is attached to the back of a mobile phone or a mobile phone case, and can be used as a handle and a stand. Such a grip tok may be composed of a mounting portion attached to the mobile phone, a grip portion functioning as a handle, and a stretchable portion that connects the mounting portion and the grip portion and has a stretchable structure.

[0003] A typical material used for the stretchable portion of conventional grip toks is thermoplastic polyurethane (TPU). However, due to the properties of TPU materials, problems such as hardening, shrinkage and yellowing have been raised, and efforts have been made to improve these problems. [PRIOR ART DOCUMENTS] [PATENT DOCUMENTS]

[0004] [Patent Document 1] Korean Registered Patent No. 10-2735247 [SUMMARY OF THE INVENTION] [Problem to be Solved by the Invention]

[0005] An embodiment of the present invention provides a grip assisting device for portable devices that improves the conventional problems such as hardening, shrinkage, and yellowing. [Means for Solving the Problem]

[0006] According to one aspect of the present invention, a gripping assist device for a portable device may be provided, comprising: a mounting portion attached to the back of the portable device; a grip portion positioned away from the mounting portion in a direction perpendicular to the back of the portable device; and an extendable portion connecting the mounting portion and the grip portion, configured to extend and retract in a direction perpendicular to the back of the portable device, wherein the extendable portion includes a soft silicone-based elastic material.

[0007] According to one embodiment of the present invention, the telescopic portion comprises a first support portion in the shape of an annular plate with an annular first insertion groove on its lower surface into which the mounting portion is inserted, a second support portion having an outer diameter smaller than the inner diameter of the first support portion and fixed to the grip portion, and a hollow frustoconical folding portion extending from the upper end of the inner circumferential surface of the first support portion to the lower end of the outer circumferential surface of the second support portion, wherein the folding portion comprises a plurality of folding pieces, each having a hollow frustoconical shape, and the folding portion may be provided with a plurality of annular bellows grooves so that the folding portion can be extended and retracted by folding the plurality of folding pieces together.

[0008] According to one embodiment of the present invention, the mounting portion may include an annular rigid frame inserted into the first insertion groove and having a second insertion groove on its lower surface, and a magnetic member inserted into the second insertion groove.

[0009] According to one embodiment of the present invention, the rigid frame may have greater rigidity than the expandable portion.

[0010] According to one embodiment of the present invention, the second support portion comprises a cylindrical portion having a first ventilation hole on its upper surface that is connected to a first inner space of the expandable portion, and a plurality of protruding portions that each protrude radially from the upper end of the outer surface of the cylindrical portion and are spaced apart from each other along the circumferential direction of the cylindrical portion, and the grip portion comprises an annular first plate member having a through hole in the center into which the cylindrical portion is inserted, and a second plate member that is coupled to the first plate member and covers the cylindrical portion in plan view, the plurality of protruding portions are press-fitted and fixed between the first plate member and the second plate member, the lower surface of the first plate member is provided with a plurality of second ventilation holes that are connected to a plurality of second inner spaces formed between the upper surface of the first plate member and the lower surface of the second plate member, the upper surface of the first plate member is provided with a plurality of first stopper grooves into which the plurality of protruding portions are inserted, and the plurality of second ventilation holes do not have to overlap in plan view with the plurality of protruding portions inserted into the plurality of first stopper grooves.

[0011] According to one embodiment of the present invention, each of the plurality of protrusions has a fan shape in which the width increases as it moves away from the cylindrical portion, and each of the plurality of first stopper grooves may have a fan shape corresponding to each of the plurality of protrusions.

[0012] According to one embodiment of the present invention, the second plate member may be provided with a plurality of sockets that protrude from the lower surface, and the plurality of sockets may define a plurality of second stopper grooves into which the plurality of protrusions are inserted.

[0013] According to one embodiment of the present invention, each of the plurality of protrusions may have a fan shape in which the width increases as it moves away from the cylindrical portion, and each of the plurality of second stopper grooves may have a fan shape corresponding to each of the plurality of protrusions.

[0014] According to one embodiment of the present invention, the second plate member is provided with a plurality of stopper protrusions that each protrude from its lower surface, and the plurality of stopper protrusions are inserted into a plurality of third stopper grooves provided on the upper surface of the plurality of protrusions, and each of the plurality of stopper protrusions and the plurality of third stopper grooves may extend in an arc shape.

[0015] According to one embodiment of the present invention, the upper surface of the cylindrical portion may be provided with a plurality of ventilation grooves extending radially, connecting the plurality of second ventilation holes to the first ventilation holes. [Effects of the Invention]

[0016] According to the embodiment of this invention, by manufacturing the expandable portion using a soft silicone-based elastic material, it is possible to improve conventional problems such as hardening, shrinkage, and yellowing. Furthermore, when the expandable portion is formed from a transparent material, the problem of the interior becoming cloudy due to moisture, which reduces marketability, can also be improved.

[0017] Furthermore, due to the properties of silicone, which has higher flexibility than TPU material, it can be reinforced with a rigid frame to provide sufficient rigidity to maintain the shape of the product, and the joint structure of the grip can be improved so that the expandable part is not separated and is stably fixed.

[0018] Furthermore, a ventilation channel can be secured that allows outside air to enter and exit the inner space of the expandable section, ensuring smooth expansion and contraction. In particular, this can improve the cracking phenomenon of the expandable section that may occur during long-term use when ventilation holes are directly formed on the outer surface of the flexible expandable section. [Brief explanation of the drawing]

[0019] [Figure 1] This figure shows a gripping assist device for portable devices according to one embodiment of the present invention. [Figure 2] Figure 1 is a perspective view of the gripping assist device. [Figure 3] Figure 1 is a perspective view of the gripping assist device. [Figure 4]Fig. 1 is an exploded perspective view of the gripping assisting device. [Figure 5] Fig. 1 is an exploded perspective view of the gripping assisting device. [Figure 6] It is a plan view showing the gripping assisting device of Fig. 1 with the second plate member removed. [Figure 7] It is a cross-sectional view showing the gripping assisting device of Fig. 1 cut along the line I-I' in Fig. 6. [Figure 8] It is a cross-sectional view showing the gripping assisting device of Fig. 1 cut along the line II-II' in Fig. 6. [Figure 9] It is a cross-sectional view showing the gripping assisting device of Fig. 7 with the expandable portion contracted. [Figure 10] It is a diagram for explaining a modified example of the gripping assisting device shown in Fig. 6. [Figure 11] It is a diagram for explaining a modified example of the gripping assisting device shown in Fig. 1. [Figure 12] It is a diagram for explaining a modified example of the gripping assisting device shown in Fig. 2 and Fig. 3. [Figure 13] It is a diagram for explaining a modified example of the gripping assisting device shown in Fig. 2 and Fig. 3. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to actual scale to facilitate understanding of the invention, and dimensions of some components may be exaggerated in some cases. Terms used in the specification and claims of the present utility model registration should not be limited to their ordinary or lexical meanings. Based on the principle that the inventor can properly define the concept of terms in order to best describe his own invention, these terms should be interpreted as meanings and concepts consistent with the technical idea of the present invention. In this specification, the singular form shall be deemed to include the plural form unless otherwise specified. Furthermore, if a part is described as "containing" a certain component, it means that the part may also contain other components. Furthermore, when a component is described as "above," it means either above or below that component, and does not necessarily mean that it is located on the upper side relative to the direction of gravity. Furthermore, when it is stated that one component is “connected” or “joined” with another component, this may include not only cases where the component is directly connected or joined to another component, but also cases where the component is indirectly connected or joined through yet another component. Furthermore, while terms such as "first," "second," etc., may be used to describe a particular component, these terms are intended to distinguish that component from other components and are not intended to limit the essence, order, or sequence of that component.

[0021] In embodiments of the present invention, first to third directions DR1 to DR3 may be defined. The first direction DR1 may be parallel to the back of the portable device 2. The second direction DR2 may intersect the first direction DR1 and be parallel to the back of the portable device 2. The third direction DR3 may be perpendicular to the back of the portable device 2. In embodiments of the present invention, the expression "in plan view" may mean a view from the third direction DR3.

[0022] Figure 1 shows a gripping assist device for portable devices according to one embodiment of the present invention; Figures 2 and 3 are perspective views of the gripping assist device of Figure 1; and Figures 4 and 5 are exploded perspective views of the gripping assist device of Figure 1.

[0023] Referring to Figures 1 to 5, a gripping assist device 1 for a portable device according to one embodiment of the present invention may include a mounting portion 100, a grip portion 200, and an extendable portion 300. In this specification, the portable device 2 may include, but is not necessarily limited to, a smartphone.

[0024] The mounting portion 100 may be detachably attached to the back of the portable device 2. The back of the portable device 2 may mean the side opposite to the front of the portable device 2, which is the image display surface. In some embodiments, the mounting portion 100 may include a rigid frame 110 and a magnetic member 120. The rigid frame 110 may be inserted into the first insertion groove 311 of the expandable portion 300, or it may have an annular shape. The rigid frame 110 may have greater rigidity than the telescopic section 300. For example, the rigid frame 110 may be made of rigid polycarbonate (PC). As a result, even if the expandable portion 300 is made of soft silicone, it may be provided with enough rigidity to maintain the shape of the product. The rigid frame 110 may be attached to the expandable section 300 via adhesive, but is not necessarily limited to this. An annular second insertion groove 111 may be provided on the lower surface of the rigid frame 110. The magnetic member 120 may be inserted into the second insertion groove 111, and may, in some, not limited to, have an annular shape. The magnetic member 120 may provide magnetic force so that it can be attached to the portable device 2. For example, the magnetic member 120 may include a permanent magnet.

[0025] The grip portion 200 may be positioned so as to be separated from the mounting portion 100 in the third direction DR3. The grip portion 200 may include a first plate member 210 and a second plate member 220, and the upper end of the telescopic portion 300 may be press-fitted and fixed by the first plate member 210 and the second plate member 220. The detailed structure of the first plate member 210 and the second plate member 220 will be described in detail below.

[0026] The telescopic portion 300 may extend in the third direction DR3 to connect the mounting portion 100 and the grip portion 200. The expandable portion 300 may be configured to expand and contract in the third direction DR3, and may contain a soft silicone-based elastic material. For example, the expandable portion 300 may contain soft silicone having a hardness of Shore A 50 to 80, or soft silicone having a hardness of Shore A approximately 70. As a result, problems such as hardening, shrinkage, and yellowing that occurred in conventional expandable parts can be improved. Furthermore, when the expandable section is formed from a transparent material, the problem of the interior becoming cloudy due to moisture, which reduces the product's marketability, can also be improved.

[0027] Figure 6 is a plan view showing the gripping assist device of Figure 1 with the second plate member removed; Figure 7 is a cross-sectional view showing the gripping assist device of Figure 1 cut along the line I-I' in Figure 6; Figure 8 is a cross-sectional view showing the gripping assist device of Figure 1 cut along the line II-II' in Figure 6; and Figure 9 is a cross-sectional view showing the gripping assist device of Figure 7 with the telescopic part retracted. Referring to Figures 2 to 9, the telescopic section 300 may include a first support section 310, a second support section 320, and a folding section 330.

[0028] According to some embodiments, the first support portion 310 may have an annular plate shape. An annular first insertion groove 311 may be provided on the lower surface of the first support portion 310. As described above, the mounting portion 100 may be inserted into the first insertion groove 311. As a result, the first support portion 310 may be reinforced by the rigid frame 110 and be able to maintain its shape.

[0029] The second support portion 320 may have an outer diameter smaller than the inner diameter of the first support portion 310. Specifically, the second support portion 320 may include a cylindrical portion 321 and a plurality of protrusions 322, and the outer diameter of the cylindrical portion 321 may be smaller than the inner diameter of the first support portion 310. As a result, the folding portion 330 extending from the upper end of the inner circumferential surface of the first support portion 310 to the lower end of the outer circumferential surface of the second support portion 320 may have a hollow frustoconical shape in which the upper end diameter is smaller than the lower end diameter.

[0030] The second support portion 320 may be fixed to the grip portion 200 via a plurality of protrusions 322. The cylindrical portion 321 may have a cylindrical shape, and a first ventilation hole 321-1 may be provided on the upper surface of the cylindrical portion 321. The first ventilation hole 321-1 may penetrate the cylindrical portion 321 in the third direction DR3 and be connected to the first inner space S1 of the telescopic portion 300. Here, the first inner space S1 may mean the space partitioned by the inner surface of the first support portion 310, the lower surface of the cylindrical portion 321, and the inner surface of the folding portion 330, and may be in contact with the back of the portable device 2.

[0031] The multiple protrusions 322 may each protrude radially from the upper end of the outer circumferential surface of the cylindrical portion 321, or they may be spaced apart from each other along the circumferential direction of the cylindrical portion 321. The multiple protrusions 322 may be pressure-fitted and fixed between the first plate member 210 and the second plate member 220 of the grip portion 200. As a result, if the expandable portion 300 is made of soft silicone, it can provide more stable fixation than the fitting method.

[0032] The first plate member 210 may have an annular shape, and a through hole 211 may be provided in the center of the first plate member 210. A cylindrical portion 321 may be inserted into the through hole 211. When the expandable portion 300 is made of soft silicone, as in this embodiment, the multiple protrusions 322 can pass through the through hole 211 in a folded state. The second plate member 220 may be bonded to the first plate member 210, or it may cover the cylindrical portion 321 in a plan view.

[0033] For example, the first plate member 210 and the second plate member 220 may be provided with multiple connecting protrusions 212 and 221 along their respective edges for connecting them to each other. Specifically, a plurality of first connecting protrusions 212 may be provided along the edge of the first plate member 210 so as to be spaced apart from each other, and a plurality of second connecting protrusions 221 may be provided along the edge of the second plate member 220 so as to be spaced apart from each other.

[0034] The first plate member 210 and the second plate member 220 may be connected to each other by the connection of a plurality of first connecting protrusions 212 and a plurality of second connecting protrusions 221. The first connecting projection 212 and the second connecting projection 221 may each have a hook shape, but are not necessarily limited to this. The second plate member 220 may have a disc shape, but is not necessarily limited to this.

[0035] Multiple second ventilation holes 213 may be provided on the lower surface of the first plate member 210. The multiple second ventilation holes 213 may be connected to a plurality of second inner spaces S2 formed between the upper surface of the first plate member 210 and the lower surface of the second plate member 220. The plurality of second inner spaces S2 may be separated from each other by a plurality of protrusions 322. As a result, outside air can enter and exit the first inner space S1 of the expandable section 300 by passing through the second ventilation hole 213 and the first ventilation hole 321-1 in sequence, thereby enabling smooth expansion and contraction of the expandable section 300. In particular, the tearing phenomenon of the expandable section that may occur during long-term use when ventilation holes are formed directly on the outer surface of the expandable section can also be improved.

[0036] Multiple first stopper grooves 214 may be provided on the upper surface of the first plate member 210. Multiple first stopper grooves 214 may be connected to through holes 211, and multiple protrusions 322 may be inserted into multiple first stopper grooves 214. As a result, the positions of the multiple protrusions 322 relative to the first plate member 210 can be fixed. The multiple first stopper grooves 214 do not necessarily have to overlap with the multiple second ventilation holes 213 in a plan view. As a result, the multiple protrusions 322 inserted into the multiple first stopper grooves 214 do not need to overlap with the multiple second ventilation holes 213 in a plan view, and it is possible to prevent the multiple second ventilation holes 213 from being blocked by the multiple protrusions 322 and obstructing the airflow.

[0037] Each of the multiple protrusions 322 may have a fan shape, with its width increasing as it moves away from the cylindrical portion 321. Furthermore, each of the multiple first stopper grooves 214 may have a fan shape corresponding to each of the multiple protrusions 322. As a result, the problem of the multiple protrusions 322, which are press-fitted and fixed between the first plate member 210 and the second plate member 220, separating from the first stopper groove 214 during the expansion and contraction movement of the expandable portion 300 made of soft silicone can be improved.

[0038] Multiple sockets 222 may protrude from the lower surface of the second plate member 220. Multiple sockets 222 may partition multiple second stopper grooves 223 into which multiple protrusions 322 are inserted. Each of the multiple second stopper grooves 223 may have a fan shape corresponding to each of the multiple protrusions 322. As a result, the ability to fix the position of the multiple protrusions 322 and prevent separation can be improved.

[0039] Furthermore, multiple stopper protrusions 224 may protrude from the lower surface of the second plate member 220. Multiple stopper protrusions 224 may be arranged within multiple second stopper grooves 223. Multiple stopper protrusions 224 may be inserted into multiple third stopper grooves 322-1 provided on the upper surface of multiple protrusions 322. As a result, the effect of fixing the position of the multiple protrusions 322 and preventing separation can be further improved.

[0040] Each of the multiple stopper protrusions 224 and the multiple third stopper grooves 322-1 may extend in an arc shape that is convex outward in a plan view.

[0041] The folding section 330 may include a plurality of folding pieces 331 that are sequentially connected in the third direction DR3. Each of the multiple folding pieces 331 may have a hollow frustoconical shape. Among the multiple folding pieces 331, those folding pieces 331 that are relatively closer to the grip portion 200 may have a relatively smaller maximum diameter, i.e., a relatively smaller lower end diameter. As a result, the folding portion 330 formed by the multiple folding pieces 331 may have a hollow frustoconical shape as a whole.

[0042] The folding portion 330 may be provided with a plurality of bellows grooves 332. Each of the plurality of bellows grooves 332 may have an annular shape extending in the circumferential direction of the folding portion 330. The plurality of bellows grooves 332 allow the plurality of folding pieces 331 to fold against each other, thereby increasing or decreasing the length of the folding portion 330 in the third direction DR3.

[0043] Figure 10 is a diagram illustrating a modified example of the gripping assist device shown in Figure 6. Referring to Figure 10, a plurality of ventilation grooves 321-2 may be provided on the upper surface of the cylindrical portion 321. The multiple ventilation grooves 321-2 may extend radially from the first ventilation hole 321-1 toward the multiple second ventilation holes 213. As a result, the airflow from the first ventilation hole 321-1 to the multiple second ventilation holes 213 can be carried out more smoothly through the multiple ventilation grooves 321-2.

[0044] Figure 11 is a diagram illustrating a modified example of the gripping assist device shown in Figure 1. Referring to Figure 11, the multiple bellows grooves 332 provided in the expandable portion 300 may be formed asymmetrically as shown in Figure 1, but they may also be formed uniformly and densely as shown in Figure 11.

[0045] Figures 12 and 13 illustrate modified examples of the gripping assist device shown in Figures 2 and 3. Referring to Figures 12 and 13, the outer circumferential surface of the folding section 330 may be provided with a plurality of third ventilation holes 333 connected to the first inner space S1, so that outside air can enter and exit the first inner space S1 of the telescopic section 300. In this case, the second ventilation hole 213 of the grip section 200 shown in Figure 3 may be omitted.

[0046] The above description has focused on preferred embodiments of the present invention, but these are merely examples and do not limit the present invention. Anyone with ordinary skill in the art to which the present invention belongs can modify and change the embodiments in various ways, such as by adding, changing, deleting, or adding components, without departing from the technical idea of ​​the present invention as described in the claims for utility model registration, and this is also included within the technical scope of the present invention. [Explanation of Symbols]

[0047] 1: Grasping aid device 2: Mobile devices 100: Mounting part 110: Rigid frame 120: Magnetic material 200: Grip section 210: First plate member 211: Through hole 212: 1st joint protrusion 213: Second vent 214: First stopper groove 220: Second plate member 221: Second joint protrusion 222: Socket 223: Second stopper groove 224: Stopper protrusion 300: Telescopic part 310: 1st support part 320: Second support part 321: Cylindrical section 321-1: First vent 321-2: Ventilation channel 322: Protrusion 322-1: Third stopper groove 330: Folding section 331: Folding piece 332: Bellows groove 333: Third vent

Claims

1. A mounting part that attaches to the back of a mobile device, A grip portion is positioned on the back of the portable device, separated from the mounting portion in a direction perpendicular to the back of the device, The device comprises a telescopic part that connects the mounting part and the grip part and is configured to extend and retract in a direction perpendicular to the back of the portable device, The aforementioned expandable portion is characterized by containing a soft silicone-based elastic material, thereby providing a gripping assistance device for portable devices.

2. The aforementioned expandable portion is The first support portion is an annular plate shape with an annular first insertion groove provided on its lower surface into which the mounting portion is inserted, A second support portion having an outer diameter smaller than the inner diameter of the first support portion and fixed to the grip portion, It comprises a hollow, frustoconical folding portion extending from the upper end of the inner surface of the first support portion to the lower end of the outer surface of the second support portion, The folding section comprises a plurality of folding pieces, each having a hollow frustoconical shape. The gripping assist device for portable devices according to claim 1, characterized in that the folding portion is provided with a plurality of annular bellows grooves so that the folding portion can be extended and retracted when the plurality of folding pieces are folded together.

3. The second support portion is, A cylindrical portion having a first ventilation hole on its upper surface that is connected to the first inner space of the aforementioned expandable portion, Each of the following protrusions extends radially from the upper end of the outer surface of the cylindrical portion and is spaced apart from each other along the circumferential direction of the cylindrical portion: The aforementioned grip portion is An annular first plate member having a through hole in the center into which the cylindrical portion is inserted, The system comprises a second plate member which is coupled to the first plate member and covers the cylindrical portion in a plan view, The plurality of protrusions are pressed and fixed between the first plate member and the second plate member. The lower surface of the first plate member is provided with a plurality of second ventilation holes connected to a plurality of second inner spaces formed between the upper surface of the first plate member and the lower surface of the second plate member. The upper surface of the first plate member is provided with a plurality of first stopper grooves into which the plurality of protrusions are inserted. The gripping assist device for portable devices according to claim 2, characterized in that the plurality of second ventilation holes do not overlap in a plan view with the plurality of protrusions inserted into the plurality of first stopper grooves.

4. The second plate member is provided with a plurality of sockets, each protruding from its lower surface, The gripping assist device for portable devices according to claim 3, characterized in that the plurality of sockets partition a plurality of second stopper grooves into which the plurality of protrusions are inserted.

5. The second plate member is provided with a plurality of stopper protrusions that each protrude from its lower surface, The plurality of stopper protrusions are inserted into a plurality of third stopper grooves provided on the upper surface of the plurality of protrusions, The gripping assist device for portable devices according to claim 4, characterized in that each of the plurality of stopper protrusions and the plurality of third stopper grooves extends in an arc shape.

Images