Electronics Unit

Abstract

To preferably configure an electronic device body and a cover component thereof to be detachable.SOLUTION: A cover component 20 is detachable from a scientific calculator 10 and includes a hook portion 23 that is erected in the vertical direction and engages with the scientific calculator 10, and a rib 24 that regulates the position of the scientific calculator 10 in the vertical direction when the cover component 20 is attached to the scientific calculator 10.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to Electronics Unit Regarding. [Background technology]

[0002] 2. Description of the Related Art Cover parts for protecting the main body of an electronic device such as a scientific calculator are known (see, for example, Patent Document 1). This type of cover part may be configured to be detachable from the electronic device body by providing a hook portion that can be engaged with and detached from a recess in the electronic device body by elastic deformation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-190091 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a structure in which the hook part is elastically deformed by contact with the electronic device body to engage with the recess, the hook part may wear out due to repeated attachment and detachment of the cover part and the electronic device body.When the hook part wears out, the clearance between the hook part and the electronic device body (e.g., the bottom surface of the recess) increases, and the backlash between the cover part and the electronic device body may become large.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide a configuration in which an electronic device main body and its cover part can be suitably attached and detached. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention Electronics Unit teeth, An electronic device body, Electronic device body For both the front and back sides of Removable cover parts and the cover part is The electronic device body is provided with a first direction. In the recess on the side of A hook portion that engages with the The hook portion is provided adjacent to the hook portion. A cover part is attached to the electronic device body. When the electronic device is inserted into the electronic device body, the electronic device body is fitted with a main body rib provided on a side surface of the electronic device body and the main body rib is provided adjacent to the recess. a protrusion portion that regulates the position of the electronic device main body in the first direction. the main body ribs are provided on both sides of the recess in the thickness direction of the electronic device main body, the main body rib provided on one of the sides of the recess is a main body rib that is overlapped with the protrusion when the cover part is attached to the front side of the electronic device main body, and the main body rib provided on the other side of the recess is a main body rib that is overlapped with the protrusion when the cover part is attached to the rear side of the electronic device main body. It is characterized by: Effect of the Invention

[0007] According to the present invention, the electronic device body and its cover part can be configured to be detachable in an appropriate manner. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a front view of the scientific calculator unit according to the embodiment. [Diagram 2] FIG. 2 is a perspective view of a scientific calculator and a cover part according to the embodiment. [Diagram 3] FIG. 2A is a perspective view of an upper extension portion, and FIG. 2B is a perspective view of a lower extension portion. [Figure 4] 11 is a vertical cross-sectional view of the upper end portion of the scientific calculator when the cover part is attached to the rear side. FIG. [Diagram 5] FIG. 13 is a diagram showing a state in which a conventional cover part and a scientific calculator are attached. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the present invention will be described with reference to FIGS. In addition, the embodiments described below are subject to various limitations that are technically preferable for implementing the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

[0010] FIG. 1 is a front view of a scientific calculator 10 (scientific calculator unit 100) with a cover part 20 according to this embodiment attached, and FIG. 2 is a perspective view of the scientific calculator 10 and the cover part 20. As shown in FIG. In the following description, the front-rear, left-right, top-bottom directions refer to the directions shown in each drawing. In other words, the front-rear direction refers to the front-to-back direction (thickness direction) of the scientific calculator 10 and the cover part 20, the left-right direction refers to the width direction of the scientific calculator 10 and the cover part 20, and the top-bottom direction refers to the longitudinal direction of the scientific calculator 10 and the cover part 20 (in other words, the direction in which the display screen 12 and the multiple operation buttons 13 described below are lined up). In addition, as described below, the cover part 20 can be attached to both the front and rear sides of the scientific calculator 10. However, unless otherwise specified, the following description will be given of the configuration of the cover part 20 assuming that it is in the front-to-rear orientation when attached to the rear side of the scientific calculator 10 as shown in Figures 1 and 2.

[0011] 1 and 2, the scientific calculator 10 is an example of an electronic device main body according to the present invention, and is formed in the shape of a rectangular plate that is long in the vertical direction. The scientific calculator 10 is combined with a cover part 20 to form a scientific calculator unit (electronic device unit) 100. Specifically, the scientific calculator 10 has a front case 11 that covers the front side, and a rear case 15 that covers the rear side and sides. The front case 11 and the rear case 15 are engaged in the front-to-rear direction such that the front case 11 closes the front opening of the rear case 15, and form the housing of the scientific calculator 10. The front case 11 has a display screen 12 on which various information is displayed, and a plurality of operation buttons 13 for receiving user operations.

[0012] The rear case 15 is made of, but not limited to, high impact polystyrene (HIPS) resin. Each of the upper and lower side surfaces 15a of the rear case 15 is formed in an arc shape so as to bulge toward the upper and lower tip sides (outside the cover part 20) as it moves toward the center in the front-rear direction (i.e., toward the locking grooves 16 described later). Specifically, each side surface 15a bulges in the opposite direction to the protruding direction of a hook portion 23 (details of which will be described later) corresponding to each locking groove 16 provided on each side surface 15a. Each of the upper and lower side surfaces 15a has a locking groove (recess) 16 for locking a hook portion 23 of a cover part 20, which will be described later, provided in the approximate center in the front-rear direction. The locking groove 16 is formed so as to extend along the left-right direction. However, the locking groove 16 formed in the lower side surface 15a is divided into two parts, left and right, although this is not particularly limited. Further, two main body ribs 17 are provided on each of the upper and lower side surfaces 15a. The two main body ribs 17 are arranged at left-right positions corresponding to both left and right ends of the locking groove 16. Each main body rib 17 is formed so as to extend in the front-rear direction across the locking groove 16 from the front end to the rear end of each side surface 15a (see FIG. 4). In other words, if each main body rib 17 is divided into two parts, a front part and a rear part, by the locking groove 16, it can be said that four main body ribs 17 are provided on each side surface 15a. The main body ribs 17 on each side surface 15a are arranged at left-right positions corresponding to a rib 24 of the cover part 20 described later. In addition, the upper and lower side surfaces 15a are formed symmetrically in the front-to-rear direction with respect to the locking groove 16 located approximately in the center in the front-to-rear direction (including the main body rib 17). This allows the cover part 20 to be attached and detached in the same manner to both the front side and the back side of the scientific calculator 10.

[0013] The cover part 20 covers and protects the main surface (front or rear) of the scientific calculator 10, and is configured to be detachable from the scientific calculator 10. The cover part 20 is made of, for example, translucent ABS (Acrylonitrile Butadiene Styrene) resin. However, the cover part 20 only needs to be made of a material that is softer (more easily deformed) than the rear case 15 of the scientific calculator 10. The cover part 20 has a cover main body 21 that covers the main surface of the scientific calculator 10. The cover main body 21 is formed in a shape corresponding to the shape of the scientific calculator 10 when viewed from the front, that is, in the shape of a rectangular plate that is long in the vertical direction corresponding to the longitudinal direction of the scientific calculator 10 .

[0014] At both the top and bottom ends of the cover main body 21, there are provided extensions 22 (upper extension 22U, lower extension 22L) that extend while curving forward. The upper extension 22U has a flat plate 221 protruding from its front end. The flat plate 221 is provided so as to protrude upward from the front end of the extension 22U, and is formed in a generally flat plate shape perpendicular to the front-to-rear direction. When removing the cover part 20 from the scientific calculator 10, for example, the user presses the front surface with his or her thumb to elastically deform the extension 22U upward, thereby releasing the engagement of the hook portion 23 described below. In the following description, the components of the upper extension portion 22U may be identified by adding a "U" to the end of the reference numeral, and the components of the lower extension portion 22L may be identified by adding an "L" to the end of the reference numeral.

[0015] 3(a) and (b) are perspective views of the upper and lower extending portions 22U and 22L. As shown in these figures, the tip (front end) of each extension 22 is provided with a hook portion 23 erected on the center side of the cover part 20 in the vertical direction (first direction). More precisely, the upper extension 22U is provided with the hook portion 23 on the lower surface of the flat plate portion 221. The hook portion 23 is a portion that engages with the locking groove 16 formed on both the upper and lower side surfaces 15a of the rear case 15 of the scientific calculator 10, and is formed so as to extend in the left-right direction corresponding to the locking groove 16. However, the lower hook portion 23L is divided into two parts, left and right, corresponding to the locking groove 16 on the lower side of the scientific calculator 10. Specifically, the upper hook portion 23U protrudes downward from the surface of the cover part 20 (the surface of the extension 22U), and the lower hook portion 23L protrudes upward from the surface of the cover part 20 (the surface of the extension 22L). Moreover, the locking groove 16 formed on the lower side surface 15a does not have to be divided into two parts, left and right, like the locking groove 16 formed on the upper side surface 15a. In this case, the hook portion 23L does not have to be divided into two parts, left and right. Moreover, the hook portion 23 is formed so as to be able to engage with the locking groove 16 of the scientific calculator 10 from both the front side and the rear side. In other words, the cover part 20 is configured so as to be able to be attached individually to the front side and the rear side of the scientific calculator 10 by reversing the front-to-rear direction.

[0016] Two ribs 24 are provided adjacent to each hook portion 23 on the rear side (the cover body portion 21 side) of each hook portion 23. The ribs 24 are an example of a protrusion according to the present invention, and serve to regulate (position) the position of the scientific calculator 10 in the vertical direction when the cover part 20 is attached to the scientific calculator 10 in an attached state (hereinafter simply referred to as the "attached state") as described later. The ribs 24 protrude in the vertical direction from the surface of the cover part 20 (the surface of the extension portion 22). Specifically, the upper rib 24U protrudes downward, and the lower rib 24L protrudes upward. Each rib 24 is arranged so as to support the rear side of the hook portion 23 and to be covered by the hook portion 23 and not visible from the front side (front face side). In addition, each rib 24 is arranged to be spaced apart in the left-right direction. Specifically, the ribs 24 are arranged at left-right positions corresponding to the main body ribs 17 formed on the upper and lower side surfaces 15a of the scientific calculator 10 (see FIG. 1).

[0017] FIG. 4 is a vertical cross-sectional view of the upper end portion of the scientific calculator 10 when the cover part 20 is attached to the rear side. When attaching the cover part 20 to the rear side of the scientific calculator 10, the front side portions of the hook portions 23 of the cover part 20 are abutted against the rear side portions of each side surface 15a of the scientific calculator 10, and the scientific calculator 10 and the cover part 20 are stacked front to back, and the scientific calculator 10 is then pushed in the front to back direction onto the cover part 20. Then, as shown in Figure 4, the extension portions 22 of the cover part 20 elastically deform outward in the vertical direction, and then the hook portions 23 of the extension portions 22 engage with the locking grooves 16 of the scientific calculator 10, and the cover part 20 is attached to the scientific calculator 10. In this attached state, the rib 24 of the cover part 20 has one surface (the surface on the right side in FIG. 4) facing the scientific calculator 10 in the up-down direction, regulating its position. Here, the rib 24 and the scientific calculator 10 (main body rib 17) "facing" each other includes both a state in which they are in contact (abutting) with each other and a state in which there is a gap between them. In this embodiment, the rib 24 of the cover part 20 and the main body rib 17 of the scientific calculator 10 are in contact with each other while the extensions 22 of the cover part 20 are elastically deformed so as to spread outward in the vertical direction (for example, 0.1 mm in the vertical direction at each extension 22). Note that FIG. 4 illustrates a state in which the extensions 22 of the cover part 20 are not elastically deformed and the rib 24 of the cover part 20 and the main body rib 17 of the scientific calculator 10 bite into each other (a state that does not actually occur), as indicated by the two-dot chain line. In this way, the scientific calculator 10 is held in a state in which the two upper and lower extensions 22 of the cover part 20 are sandwiched by each other's elastic force. This allows the scientific calculator 10 to be held suitably without rattle, for example, without providing rubber feet or the like on the cover main body 21 to support the scientific calculator 10.

[0018] When removing (disengaging) cover part 20 from scientific calculator 10, for example, the user presses the front surface of flat plate portion 221 of upper extension portion 22U with their thumb, thereby elastically deforming extension portion 22U upward and removing hook portion 23U from locking groove 16 of scientific calculator 10. This allows cover part 20 to be removed from scientific calculator 10. However, the rear wall surface of locking groove 16 of scientific calculator 10 can also be pressed against the rear surface of hook portion 23 of cover part 20 by pulling cover part 20 and scientific calculator 10 back and forth, thereby disengaging hook portion 23 from locking groove 16.

[0019] In this way, when the cover part 20 is attached to or detached from the scientific calculator 10, the hook portion 23 of the cover part 20 may rub against the scientific calculator 10, but the rib 24 is unlikely to rub against the scientific calculator 10. Depending on the method of attachment and detachment, such as when the cover part 20 is removed from the scientific calculator 10 while spreading the extension portion 22 outward in the vertical direction, the hook portion 23 may rub against the scientific calculator 10, but the rib 24 may not rub against the scientific calculator 10. Also, when the cover part 20 is attached, the rib 24 of the cover part 20 comes into contact with the upper and lower side surfaces 15a (main body rib 17) of the scientific calculator 10, thereby positioning the cover part 20 and the scientific calculator 10 in the vertical direction (regulating their positions). In other words, the cover part 20 is positioned with respect to the scientific calculator 10 by the rib 24, which is different from the hook portion 23 that may wear when the cover part 20 is attached to or detached from the scientific calculator 10. Therefore, even if the cover part 20 and the scientific calculator 10 are repeatedly attached and detached, the play between them does not increase, and they can be kept appropriately positioned. That is, in a conventional cover part that does not have rib 24, the hook part that engages with the recess of the scientific calculator (main case) positions the scientific calculator in the up-down direction (the direction in which the hook part is erected) as shown in Fig. 5, but repeated attachment and detachment can wear down the tip surface of the hook part, causing the play with the scientific calculator to increase. In other words, there are cases in which the clearance between the cover part and the scientific calculator increases from the distance D1 between the tip of the hook part and the bottom surface of the recess, which should be used for positioning, to the distance D2 between the extension part and the side surface of the main case. In this regard, in the cover part 20 of this embodiment, a rib 24, which is different from the hook portion 23 that functions as an engagement portion with the scientific calculator 10, is responsible for positioning with the scientific calculator 10, so that the scientific calculator 10 can continue to be appropriately positioned even if the hook portion 23 becomes worn.

[0020] As described above, the rib 24 of the cover part 20 and the main body rib 17 of the scientific calculator 10 do not have to be in contact (abut) with each other, and a gap may be provided between them. More specifically, as shown in Fig. 4, when the cover part 20 is attached, it is sufficient that the distance in the vertical direction between the rib 24 and the scientific calculator 10 (the main body rib 17 in this embodiment) is shorter than the distance C in the vertical direction between the tip of the hook portion 23 and the scientific calculator 10 (the bottom surface of the locking groove 16). In other words, it is sufficient that the rib 24, not the hook portion 23, is responsible for positioning the scientific calculator 10. Furthermore, when cover part 20 is attached, it is preferable that a gap is provided between cover part 20 and scientific calculator 10 on the opposite side (front side) of hook part 23 from cover body 21, i.e., there is no rib 24 on the front side of hook part 23. This is because if there is a rib 24 on the front side of hook part 23, hook part 23 and rib 24 are likely to rub against each other when cover part 20 is attached. This allows scientific calculator 10 and cover part 20 to be attached and detached smoothly.

[0021] Furthermore, the positions and the number of the ribs 24 are not particularly limited. For example, only one rib 24 may be disposed in the left-right direction. However, arranging a plurality of ribs 24 spaced apart from each other in the left-right direction will enable the scientific calculator 10 to be held more stably in the width direction. In addition, although the ribs 24 are provided on each of the upper and lower extending portions 22, they may be provided on only one of them. In that case, it is more preferable to provide the ribs on the upper extending portion 22U having the flat plate portion 221. In addition, although the rib 24 is described as positioning (regulating the position) of the scientific calculator 10 in its longitudinal direction (up-down direction), the rib 24 may be any that regulates the position of the scientific calculator 10 in the erect direction of the hook portion 23. For example, the rib 24 may be configured to position the scientific calculator 10 in its width direction (left-right direction). In addition, the relative positions of the rib 24 and the hook portion 23 are not particularly limited. The rib 24 may be disposed in front of the hook portion 23. However, when the rib 24 is disposed adjacent to the rear side of the hook portion 23 as in this embodiment, the rib 24 supports the hook portion 23, making the hook portion 23 and the extension portion 22 less likely to be elastically deformed. This makes it possible to prevent the cover part 20 from being unintentionally detached from the scientific calculator 10. In addition, taking into consideration both the mounting stability and the ease of attachment and detachment, it is preferable that the rib 24 is provided only on a part of the width direction (left and right direction) of the hook portion 23. In addition, by disposing the rib 24 on the rear side of the hook portion 23, the cover part 20 can be smoothly attached and detached from the scientific calculator 10.

[0022] Also, main body ribs 17 are provided on rear case 15 of scientific calculator 10 to correspond to ribs 24 of cover part 20, but main body ribs 17 are not required. However, providing main body ribs 17 is preferable, particularly from the standpoint of aesthetics, since it limits the parts of scientific calculator 10 that are subject to wear when attached or detached to main body ribs 17, compared to a case in which side surface 15a of rear case 15 itself rubs against ribs 24 and wears down.

[0023] As described above, according to this embodiment, the cover part 20 that is detachable from the scientific calculator 10 has the rib 24 that regulates the position of the scientific calculator 10 in the erect direction (vertical direction) of the hook portion 23 when in the attached state. Therefore, unlike conventional methods in which a hook portion that engages with scientific calculator positions the scientific calculator, rib 24, which is different from hook portion 23 that functions as an engagement portion with scientific calculator 10, is responsible for positioning with scientific calculator 10. As a result, even if hook portion 23 becomes worn, scientific calculator 10 can continue to be appropriately positioned by rib 24. Therefore, scientific calculator 10 and its cover part 20 can be configured to be appropriately detachable.

[0024] Furthermore, according to this embodiment, when the cover part 20 is attached, one surface of the rib 24 faces the scientific calculator 10 and regulates its position. In other words, only one surface of the rib 24 faces (is in contact with) the side surface 15a of the scientific calculator 10, and is not covered by a recess (engagement groove 16) like the hook portion 23, thereby reducing wear on the rib 24 when attaching or detaching the calculator.

[0025] Furthermore, according to this embodiment, when the cover part 20 is attached, the distance in the vertical direction between the rib 24 and the scientific calculator 10 (in this embodiment, the main body rib 17) is shorter than the distance C in the vertical direction between the tip of the hook portion 23 and the scientific calculator 10 (the bottom surface of the locking groove 16). This allows the positioning of the scientific calculator 10 in the vertical direction to be more reliably performed by the rib 24 rather than the hook portion 23 .

[0026] Furthermore, according to this embodiment, the rib 24 is disposed adjacent to the hook portion 23 on the cover main body portion 21 (rear side) side. As a result, the rib 24 can be covered with the hook portion 23 and arranged so as not to be visible from the front side, so that the rib 24 does not spoil the aesthetic appearance.

[0027] Furthermore, according to this embodiment, a plurality of ribs 24 are arranged spaced apart from each other in the vertical direction and in the left-right direction perpendicular to the thickness direction of the cover part 20 . This allows the scientific calculator 10 to be held stably in the left-right direction (width direction).

[0028] Furthermore, according to this embodiment, the cover part 20 is made of a material that is softer (more easily deformed) than the rear case 15 of the scientific calculator 10 with which the hook portion 23 engages. This makes it possible to suppress deformation and wear on the scientific calculator 10 (rear case 15) side caused by attachment and detachment of the cover part 20.

[0029] Incidentally, the embodiments to which the present invention can be applied are not limited to the above-described embodiments, and it goes without saying that various modifications are possible without departing from the gist of the present invention.

[0030] For example, the cover part 20 does not have to be of a detachable type that can be attached to and detached from the scientific calculator 10, but may be of a sliding type that can be attached to the front or rear side of the scientific calculator 10 by sliding along the main surface of the scientific calculator 10.

[0031] Furthermore, the electronic device (main body) according to the present invention is not limited to a scientific calculator (electronic desk calculator) but can be widely applied to general electronic devices with detachable cover parts, such as electronic dictionaries and smartphones.

[0032] Although several embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. The inventions described in the claims originally attached to this application are set forth below. The claim numbers in the appended claims are the same as those in the claims originally attached to this application. [Additional Notes] <Claim 1> A cover part that is detachable from an electronic device body, a hook portion that is erected in a first direction and engages with the electronic device body; a protrusion portion that regulates a position of the electronic device main body in the first direction when the cover part is in an attached state to the electronic device main body; Equipped with A cover part characterized by: <Claim 2> The protrusion protrudes from a surface of the cover part to one side in the first direction. 2. The cover part according to claim 1 . <Claim 3> When the protrusion is in the attached state, one surface of the protrusion faces the electronic device body to regulate the position of the electronic device. 3. The cover part according to claim 1 or 2. <Claim 4> In the attached state, a distance between the protrusion and the electronic device main body in the first direction is shorter than a distance between a tip of the hook and the electronic device main body in the first direction. 4. The cover part according to claim 1, wherein the cover part is made of a material selected from the group consisting of fluororesin and fluoroelastomers. <Claim 5> The first direction corresponds to a longitudinal direction of the electronic device body. 5. The cover part according to claim 1, wherein the cover part is made of a resin. <Claim 6> a cover body portion for covering a main surface of the electronic device body; The protrusion is disposed adjacent to the hook on the cover body side. 6. The cover part according to claim 1, wherein the cover part is made of a material selected from the group consisting of fluororesin, ...rubber, and fluororesin. <Claim 7> a cover body portion for covering a main surface of the electronic device body; In the attached state, a gap is provided between the cover part and the electronic device body on the opposite side of the hook portion from the cover body portion side. 6. The cover part according to claim 1, wherein the cover part is made of a material selected from the group consisting of fluororesin, ...rubber, and fluororesin. <Claim 8> The protrusions are arranged in a direction perpendicular to the first direction and a thickness direction of the cover part and spaced apart from each other. A cover part according to any one of claims 1 to 7. <Claim 9> The cover part is made of a material softer than the case of the electronic device body with which the hook part engages. A cover part according to any one of claims 1 to 8. <Claim 10> A cover part according to any one of claims 1 to 9; The electronic device main body has a cover part that is detachable. 1. An electronic device unit comprising: <Claim 11> The electronic device body includes: a recess with which the hook portion of the cover part engages in a side surface facing the hook portion when the cover part is in the attached state; the side surface is formed in a curved shape so as to bulge outwardly as it approaches the recess in a thickness direction of the electronic device body, The direction in which the side surface bulges is opposite to the direction in which the hook portion facing the recess protrudes. 11. The electronic device unit according to claim 10. <Claim 12> the electronic device body has a recess with which the hook portion of the cover part engages when the electronic device body is in the attached state, The recess is a groove extending in a direction perpendicular to both the thickness direction of the electronic device body and the first direction. 11. The electronic device unit according to claim 10. [Explanation of symbols]

[0033] 10 Scientific calculator (electronic device) 11 Front case 15 Rear case (case) 15a side 16 Locking groove (recess) 17 Body rib 20 Cover parts 21 Cover body 22 Extension 23 Hook part 24 Rib (protrusion) 100 Scientific Calculator Unit (Electronics Unit) C Distance (distance between the tip of the hook and the calculator in the vertical direction)

Claims

1. An electronic device body, a cover part that is detachable from both the front side and the rear side of the electronic device body; Equipped with The cover part is a hook portion that is erected in a first direction and engages with a recessed portion that is provided on a side surface of the electronic device body; a protrusion provided adjacent to the hook portion, the protrusion being overlapped with a main body rib provided on a side surface of the electronic device main body and provided adjacent to the recess when the cover part is attached to the electronic device main body, thereby regulating a position of the electronic device main body in the first direction; Equipped with the main body ribs are provided on both sides of the recess in a thickness direction of the electronic device main body, the main body rib provided on one of both sides of the recess is a main body rib that is overlapped with the protrusion when the cover part is attached to the front side of the electronic device main body, the main body rib provided on the other of both sides of the recess is a main body rib that is overlapped with the protrusion when the cover part is attached to the rear side of the electronic device main body.

1. An electronic device unit comprising:

2. The cover part includes a cover main body portion that covers a front or a back surface of the electronic device main body, the protrusions are provided only on the sides of the hook portion in a thickness direction of the electronic device body that are closer to the cover body, 2. The electronic device unit according to claim 1.

3. The protrusion protrudes from a surface of the cover component to one side in the first direction and is provided at a protruding height lower than that of the hook portion.

3. The electronic device unit according to claim 1 or 2.

4. The recess is a groove extending in the second direction, The main body rib is formed to have a length shorter than that of the recess in the second direction.

4. The electronic device unit according to claim 1, wherein the first and second electrodes are electrically connected to the first and second electrodes.

5. the first direction corresponds to a longitudinal direction of the electronic device body, The second direction is a width direction of the electronic device body.

5. The electronic device unit according to claim 4.

Images