smartphone case

Abstract

A smartphone case, comprising: a case body (10) having a hollow structure with a front opening and formed with a coupling through-hole (11) on the rear surface; a fastening component (30) comprising an annular fastening component body (31) and a concave coupling portion (33), wherein the fastening component body (31) is inserted into the coupling through-hole (11) and the concave coupling portion (33) is formed on the inner peripheral surface of the fastening component body (31);a rotary component (40) comprising an annular rotary component body (41), a plurality of convex coupling portions (43), a concave retaining ring coupling portion (41a), and a spring insertion portion (41b), wherein the convex coupling portions (43) are formed on the outer peripheral surface of the rotary component body (41) and are rotationally coupled to the concave coupling portion (41a), wherein the concave retaining ring coupling portion (41a) is formed on one side of the inner peripheral surface of the rotary component body (41), and wherein the spring insertion portion (41b) is formed on the inner peripheral surface of the rotary component body (41) and is in contact with the two end portions of the concave retaining ring coupling portion (41a);anda retaining ring (50) comprising an annular retaining ring body (51) and an extendable end portion (53), wherein one end portion of the outer peripheral surface of the retaining ring body (51) is rotationally inserted into the concave retaining ring coupling portion (41a), a spring insertion groove (51a) is formed on the outer peripheral surface, and wherein the extendable end portion (53) is formed on the other end portion of the outer peripheral surface of the retaining ring body (51), wherein the convex coupling portion (43) comprises a convex body (43a) and convex coupling elements (43b, 43c), and wherein the convex coupling elements (43b, 43c) are separated by a distance from the outer peripheral surface of the rotation component body (41) and are formed at two ends of the convex body (43a);and wherein the convex coupling elements (43b, 43c) have a symmetrical shape with a dashed line as a reference connecting the center of the rotation component body (41) to the convex body (43a);

Description

Technical field

[0001] The present invention relates to a smartphone case. background

[0002] The patent, disclosed in the Republic of Korea as Registered Patent No. KR 10 1 392 562 B1 (registration date: April 29, 2014, invention title: Case with Removable Module for Portable Terminal), has the advantages of unfolding an operation portion by simple operation and placing a portable terminal at a desired angle. On the other hand, in order to achieve rotational connection of a connector with an assembly-disassembly groove, the case becomes thick. Furthermore, due to the rotational nature of the base end of the connector, durability is reduced through repeated use and the likelihood of breakage increases, so the prior art has the disadvantage of being unstable during placement.

[0003] To overcome this disadvantage, the applicant proposes a system registered in the Republic of Korea as Utility Model No. KR 20 0 488 626 Y1 (registration date: February 22, 2019, Utility Model Title: Rotatable Smartphone Case), which allows the smartphone to be used safely and conveniently while protecting the smartphone. However, it has the problem of difficult processing and assembly due to the high machining precision of each component.

[0004] Smartphone cases are also already known from US 2018 / 0013463 A1, DE 11 2018 005 360 T5, KR 101856447 B1, KR 101735010 B1 and KR 101931304 B1. Brief description of the invention

[0005] In order to solve the above problem, the invention provides a smartphone case that does not have a protrusion portion on a case body, so that the case body looks beautiful, the case can be gripped securely and strongly, and processing and assembly can be easily realized.

[0006] The object of the invention is achieved by the following smartphone case. The smartphone case comprises: a case body having a hollow structure with a front opening and formed with a coupling through-hole on its rear surface; a fastening component comprising an annular fastening component body and a concave coupling portion, the fastening component body being inserted into the coupling through-hole, and the concave coupling portion being formed on the inner peripheral surface of the fastening component body;a rotary component comprising an annular rotary component body, a plurality of convex coupling portions, a concave retaining ring coupling portion, and a spring insertion portion, wherein the convex coupling portions are formed on the outer peripheral surface of the rotary component body and are rotationally coupled to the concave coupling portion, wherein the concave retaining ring coupling portion is formed on one side of the inner peripheral surface of the rotary component body, and wherein the spring insertion portion is formed on the inner peripheral surface of the rotary component body and is in contact with the two end portions of the concave retaining ring coupling portion;and a retaining ring comprising an annular retaining ring body and an extendable end portion, wherein one end portion of the outer peripheral surface of the retaining ring body is rotationally inserted into the concave retaining ring coupling portion, a spring insertion groove is formed on the outer peripheral surface, and the extendable end portion is formed on the other end portion of the outer peripheral surface of the retaining ring body.;

[0007] Preferably, the convex coupling portion of the invention comprises a convex body and convex coupling elements, wherein the convex coupling elements are separated by a distance from the outer peripheral surface of the rotation component body and formed at two ends of the convex body; and wherein the convex coupling elements have a symmetrical shape with a dashed line as a reference connecting the center of the rotation component body to the convex body.

[0008] Preferably, the coupling through-hole of the invention is formed with a step surface on the inner peripheral surface of the rear surface, the coupling through-hole is formed with a step surface on the inner peripheral surface of the rear surface, and a plurality of coupling long grooves are formed at a distance on the front surface of the fastening component body; and the smartphone case also includes a cover, the cover comprising a cover body and a plurality of convex coupling parts, the cover body being inserted into the step surface, and the plurality of convex coupling parts being formed on a side surface edge of the cover body and inserted into the coupling long grooves. Effect of the invention

[0009] As described, the invention also has the effects of easy assembly and disassembly without forming a protrusion portion while securely protecting the smartphone, and can realize safe use. Short description of the drawings Fig. Figure 1 illustrates a stereoscopic view of the smartphone case according to the invention; Fig. 2 illustrates a stereoscopic view of the smartphone case from Fig. 1 in the state of unfolding the retaining ring; Fig. Figure 3 illustrates a stereoscopic view of the disassembled rear surface of Fig. 1; Fig. 4 illustrates a stereoscopic view of the coupling relationship of the fixing component, the rotation component, and the retaining ring; Fig. 5 illustrates a stereoscopic view of the fastening component; Fig. Figure 6 illustrates a stereoscopic view of the rotation component; Fig. Figure 7 illustrates a stereoscopic view of the coupling relationship of the

[0010] fastening component, the rotation component, the cover and the retaining ring; and Fig. Figure 8 illustrates a stereoscopic view of the cover.

[0011] The reference symbols in the drawings are as follows: 10: Case body; 30: Fastening component; 40: Rotation component; 50: Retaining ring; 70: Spring; 80: Cover; 100: Smartphone case Detailed description

[0012] The invention is described below with reference to the drawings.

[0013] Referring to Fig. 1 to 8, the smartphone case 100 includes a case body 10, a fastening component 30, a rotation component 40, a retaining ring 50, a spring 70, and a cover 80.

[0014] The case body 10 has a hollow structure with a front opening and is formed with a plurality of through-holes (not shown) on the top surface and the side surface. The through-holes of the case body 10 are formed to expose a camera button, a headphone jack, a power button, etc. of the smartphone (not shown), which are unnecessary components of the technical idea of ​​the embodiment, and detailed descriptions or illustrations thereof are omitted.

[0015] Furthermore, the shell body 10 is formed with a coupling through-hole 11 on the rear surface. The coupling through-hole 11 is formed with a stepped surface 11a on the inner peripheral surface of the rear surface.

[0016] The fastening component 30 includes an annular fastening body 31 inserted into the coupling through-hole 11 and a concave coupling portion 33 formed on the inner peripheral surface of the fastening body 31. The outer peripheral surface of the fastening component 30 is forcibly inserted into and fixed to the inner peripheral surface of the coupling through-hole 11 of the shell body 10, and the concave coupling portion 33 has a serrated shape.

[0017] In addition, a plurality of coupling grooves 31a are formed at a distance on the front surface of the fastening component body 31.

[0018] The rotation component 40 includes an annular rotation component body 41 and a plurality of convex coupling portions 43 formed on the outer peripheral surface of the rotation component body and rotationally coupled to the concave coupling portion 33.

[0019] In addition, the rotary component 40 also includes a concave retaining ring coupling portion 41a formed on one side of the inner peripheral surface of the rotary component body 41, and a spring insertion portion 41b formed on the inner peripheral surface of the rotary component body 41 and in contact with the two end portions of the concave retaining ring coupling portion 41a.

[0020] Thereby, the convex coupling portion 43 includes a convex body 43a and convex coupling elements 43b and 43c separated by a distance from the outer peripheral surface of the rotation component body 41 and formed at two ends of the convex body 43a. The unspecified reference numeral 43s indicates a gap between the outer peripheral surface of the rotation component body 41 and the convex

[0021] Coupling elements 43b and 43c. In addition, the convex coupling elements 43b and 43c have a symmetrical shape with a dashed line as a reference connecting the center of the rotation component body 41 to the convex body 43a.

[0022] In addition, the dashed outer diameter Di of the rotary component 40 coincides with the tip height of the convex coupling elements 43b and 43c and is larger than the inner diameter of the fastening component body 31. Therefore, when the rotary component 40 is forcibly inserted into the fastening component 30, insertion is performed while the gap 43c is reduced, so that falling off or separation is prevented until an external force acts.

[0023] Furthermore, the convex coupling members 43b and 43c of the embodiment have a symmetrical shape, so that the rotation component 40 rotates smoothly in the clockwise direction UZS or counterclockwise direction CCW and is fixed in the concave coupling portion 33.

[0024] The retaining ring 50 includes a retaining ring body 51 and an extendable end portion 53. One end portion of the outer peripheral surface of the retaining ring body 51 is rotationally inserted into the concave retaining ring coupling portion 41a, with a spring insertion groove 51a formed on the outer peripheral surface, and the extendable end portion 53 is formed on the other end portion of the outer peripheral surface.

[0025] The extendable end portion 53 is formed as a concave portion. However, the extendable end portion 53 is not limited to being formed as a concave portion and may be deformed as a convex portion.

[0026] The spring 70 is inserted into the spring insertion groove 51a, and the opened two end portions are forcibly pressed into the spring insertion portion 41b. The spring 70 is an Ω-shaped spring.

[0027] The cover 80 includes a cover body 81 and a plurality of convex coupling parts 83. The cover body 81 is inserted into the step surface 11a. The plurality of convex coupling parts 83 are formed on a side surface edge of the cover body 81 and inserted into the coupling groove 31a.

[0028] In addition, the cover 80 also includes a circular convex portion 85 at a side surface center of the cover body 81. The circular convex portion 85 is adapted to be housed in the inner peripheral surface of the retaining ring body 51 to prevent shaking or movement when the retaining ring 50 is in an unexpanded state.

[0029] The invention is described by way of an embodiment, but is not limited thereto. It is understood that all embodiments devised based on the technical idea of ​​the invention are within the scope of the invention. Industrial applicability

[0030] The invention provides a smartphone case without forming a protrusion portion of the smartphone case; the invention also has the effects of easy assembly and disassembly while securely protecting the smartphone, and can realize safe use.

Claims

[1] A smartphone case comprising:a case body (10) having a hollow structure with a front opening and formed with a coupling through-hole (11) on the rear surface;a fastening component (30) comprising an annular fastening component body (31) and a concave coupling portion (33), wherein the fastening component body (31) is inserted into the coupling through-hole (11) and the concave coupling portion (33) is formed on the inner peripheral surface of the fastening component body (31);a rotary component (40) comprising an annular rotary component body (41), a plurality of convex coupling portions (43), a concave retaining ring coupling portion (41a), and a spring insertion portion (41b), wherein the convex coupling portions (43) are formed on the outer peripheral surface of the rotary component body (41) and are rotationally coupled to the concave coupling portion (41a), wherein the concave retaining ring coupling portion (41a) is formed on one side of the inner peripheral surface of the rotary component body (41), and wherein the spring insertion portion (41b) is formed on the inner peripheral surface of the rotary component body (41) and is in contact with the two end portions of the concave retaining ring coupling portion (41a);anda retaining ring (50) comprising an annular retaining ring body (51) and an extendable end portion (53), wherein one end portion of the outer peripheral surface of the retaining ring body (51) is rotationally inserted into the concave retaining ring coupling portion (41a), a spring insertion groove (51a) is formed on the outer peripheral surface, and wherein the extendable end portion (53) is formed on the other end portion of the outer peripheral surface of the retaining ring body (51), wherein the convex coupling portion (43) comprises a convex body (43a) and convex coupling elements (43b, 43c), and wherein the convex coupling elements (43b, 43c) are separated by a distance from the outer peripheral surface of the rotation component body (41) and are formed at two ends of the convex body (43a);and wherein the convex coupling elements (43b, 43c) have a symmetrical shape with a dashed line as a reference connecting the center of the rotation component body (41) to the convex body (43a); [2] The smartphone case according to claim 1, wherein the coupling through-hole (11) is formed with a step surface (11a) on the inner peripheral surface of the rear surface, and wherein a plurality of coupling long grooves (31a) are formed at a distance on the front surface of the fastening component body (31); and wherein the smartphone case also comprises a cover (80), wherein the cover (80) comprises a cover body (81) and a plurality of convex coupling parts (83), wherein the cover body (81) is inserted into the step surface (11a), and wherein the plurality of convex coupling parts (83) are formed on a side surface edge of the cover body (81) and inserted into the coupling long grooves (31a).

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