Device installation structure

Abstract

A device mounting structure that can suppress loosening and wobbling. The device mounting structure for mounting an electronic device on a vehicle structure includes: a base that is combined with the structure and supports the electronic device; and a cover that is combined with the base via a first engaging portion and a second engaging portion and covers the electronic device together with the base. The first engaging portion includes: a locking recess provided on one of the base and the cover; and a locking piece provided on the other of the base and the cover and inserted into the locking recess. The locking recess has a first wall portion and a second wall portion that face each other in a first direction and opens in a second direction perpendicular to the first direction. The locking piece includes: a first portion that abuts against one of the first wall portion and the second wall portion; and a second portion that protrudes from the first portion and abuts against the other of the first wall portion and the second wall portion and has a higher flexibility than the first portion.

Description

Technical Field

[0001] The present invention relates to a device mounting structure for mounting an electronic device on a vehicle structure body. Background Art

[0002] A device mounting structure is disclosed in Patent Document 1. The device mounting structure includes: a base mounted on a window panel and supporting a sensor assembly such as a camera; and a cover combined with the base to cover the base and the sensor assembly. The base has a latching receiving portion provided at the front of the base and a engaging portion provided at the rear of the base. The cover has a latching piece provided at the front of the cover and an engaged portion provided at the rear of the cover. After the latching piece is inserted into the latching receiving portion, the engaged portion is detachably engaged with the engaging portion, so that the cover is fixed to the base.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Specification of JP Patent No. 6494750.

[0006] When manufacturing errors occur in the base or the cover, a gap is generated between the latching receiving portion and the engaging portion, and there is a problem that the cover loosens and sways relative to the base. Summary of the Invention

[0007] In view of the above background, an object of the present invention is to provide a device mounting structure that can suppress loosening and swaying.

[0008] To achieve the above object, an embodiment of the present invention is a device mounting structure (1) for mounting an electronic device (5) on a vehicle structure (2, 3), comprising: a base (6) which is combined with the structure and supports the electronic device; a cover (9) which is combined with the base via a first engaging portion (7) and a second engaging portion (8), and covers the electronic device together with the base; the first engaging portion has a locking recess (41) provided on one of the base and the cover, and a locking piece (42) provided on the other of the base and the cover and inserted into the locking recess, the locking recess has a first wall portion (41A) and a second wall portion (41B) facing each other in a first direction, and opens in a second direction perpendicular to the first direction, the locking piece has: a first portion (42A) which abuts against one of the first wall portion and the second wall portion; a second portion (42B) which protrudes from the first portion and abuts against the other of the first wall portion and the second wall portion, and has a higher flexibility than the first portion; by the cover and the base being engaged with each other at the second engaging portion, the movement of the cover relative to the base in the second direction is restricted.

[0009] According to this method, the first portion of the locking piece abuts against one of the first wall portion and the second wall portion of the locking recess, and the second portion of the locking piece abuts against the other of the first wall portion and the second wall portion of the locking recess. Therefore, the locking piece is fixedly engaged in the locking recess without looseness or wobbling in the first direction. That is, in the device mounting structure, looseness and wobbling can be suppressed.

[0010] In the above method, it may also be that in a state where the locking piece is inserted into the locking recess, the second portion is inclined with respect to the first direction and extends toward the opening end side of the locking recess.

[0011] According to this method, it is possible to prevent the second portion from being caught by the edge portion of the locking recess when the locking piece is inserted into the locking recess. In addition, damage to the second portion can be suppressed.

[0012] In the above method, it may also be that the second portion forms a leaf spring.

[0013] According to this method, it is possible to make the second portion more surely abut against the other of the first wall portion and the second wall portion.

[0014] In the above-described manner, it is also possible that the first part has: a flat base portion (42E) having a first surface (42C) opposite to the first wall portion and a second surface (42D) opposite to the second wall portion; a through-hole (42F) that penetrates the base portion from the first surface to the second surface; and the second part projects from the hole wall surface (42H) defining the through-hole.

[0015] According to this manner, the displacement range of the second part can be expanded, and the second part can be made to more surely abut against the other one of the first wall portion and the second wall portion.

[0016] In the above-described manner, it is also possible that the thickness of the second part is smaller than the thickness of the base portion, the second part is joined to the second surface side of the hole wall surface, and projects beyond the first surface to the outside of the through-hole.

[0017] According to this manner, the displacement range of the second part can be expanded, and the second part can be made to more surely abut against the other one of the first wall portion and the second wall portion.

[0018] In the above-described manner, it is also possible that the second part has a bent portion (42J) that bends toward the through-hole side at an intermediate portion projecting from the through-hole.

[0019] According to this manner, the second part abuts against the other one of the first wall portion and the second wall portion at the bent portion. Thereby, the second part can slide smoothly with respect to the other one of the first wall portion and the second wall portion, and the user can smoothly insert the locking piece into the locking recess.

[0020] In the above-described manner, it is also possible that the first part has a thick wall portion (42G) that extends along the front edge of the base portion and is thicker than the thickness of the base portion, and the thick wall portion abuts against one of the first wall portion and the second wall portion.

[0021] According to this manner, the rigidity of the locking piece can be improved.

[0022] In the above-described manner, it is also possible that a part of the hole wall surface is formed by the thick wall portion, and the second part extends from the thick wall portion.

[0023] According to this manner, the displacement range of the second part can be expanded, and the second part can be made to more surely abut against the other one of the first wall portion and the second wall portion.

[0024] According to the above configuration, loosening and rattling can be suppressed in the device mounting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1Is a perspective view of the device mounting structure according to an embodiment of the present invention;

[0026] Figure 2 Is a cross-sectional view of the device mounting structure;

[0027] Figure 3 Is a perspective view of the base member;

[0028] Figure 4 Is a perspective view of the first cover body viewed from above;

[0029] Figure 5 Is a perspective view of the first cover body viewed from below;

[0030] Figure 6 Is a cross-sectional view of the locking piece;

[0031] Figure 7 Is an exploded perspective view of the bracket and the roof console;

[0032] Figure 8 Is a top view of the first cover body and the second cover body;

[0033] Figure 9 Is a cross-sectional view of the device mounting structure.

[0034] Explanation of reference numerals

[0035] 1 Device mounting structure

[0036] 2 Front window panel

[0037] 3 Roof

[0038] 5 Electronic device

[0039] 6 Base

[0040] 7 First engaging portion

[0041] 8 Second engaging portion

[0042] 9 First cover body

[0043] 11 Bracket

[0044] 41 Locking recess

[0045] 41A First wall portion

[0046] 41B Second wall portion

[0047] 42 Locking piece

[0048] 42A First part

[0049] 42B Second part

[0050] 42C First surface

[0051] 42D Second side

[0052] 42E Base

[0053] 42F Through hole

[0054] 42G Thick wall portion

[0055] 42H Hole wall surface

[0056] 42J Bending portion Detailed implementation manners

[0057] The following describes the implementation manners of the device mounting structure of the present invention. The device mounting structure mounts an electronic device on a vehicle structure. The vehicle structure includes a window panel, a roof, an instrument panel, a center console, a door, etc. The electronic device includes various sensors such as a camera, a laser, a radar, and a sonar.

[0058] The device mounting structure is provided at the boundary between the window panel and the roof of the vehicle. The window panel includes a front window panel that defines the front part of the passenger compartment, a rear window panel that defines the rear part of the passenger compartment, and a pair of side window panels that define the left and right sides of the passenger compartment.

[0059] As Figure 1 and Figure 2 shown, in the present embodiment, the device mounting structure 1 is provided at the boundary between the front window panel 2 and the roof 3. The front window panel 2 faces upward and slopes backward. The roof 3 defines the upper part of the passenger compartment 4 and is configured to be substantially horizontal. The roof 3 has a roof panel (not shown) formed of metal and a roof lining 3B mounted on the lower surface of the roof panel. The window panel can be formed of glass or resin.

[0060] The device mounting structure 1 has: a base 6, which is combined with the front window panel 2 as a vehicle structure and supports the electronic device 5; a first cover 9, which is combined with the base 6 via a first engaging portion 7 and a second engaging portion 8 and covers the electronic device 5 together with the base 6. The base 6 is mounted on the upper end portion of the inner side (rear side) of the front window panel 2. In addition, the device mounting structure 1 has a bracket 11 mounted on the roof 3. The first cover 9 is mounted on the bracket 11 in addition to the base 6. The base 6, the first cover 9, and the bracket 11 can be formed of resin.

[0061] As Figure 2 and Figure 3As shown, the base 6 has a base main body portion 15 which has a front surface and a rear surface and is formed in a plate shape. The front surface of the base main body portion 15 is formed in a flat shape. The front surface of the base main body portion 15 is combined with the inner side surface of the front window plate 2 by a double-sided tape or an adhesive material. The base main body portion 15 extends vertically along the inner side surface of the front window plate 2. The upper edge of the base main body portion 15 extends left and right and is disposed near the upper edge of the front window plate 2.

[0062] At the center in the left-right direction in the upper part of the base main body portion 15, a through hole 16 that penetrates the base main body portion 15 from the front to the rear is formed. On the front surface of the base main body portion 15, a light guide groove 17 is formed in front of the through hole 16. The light guide groove 17 extends forward from the through hole 16 and gradually increases in width in the left-right direction toward the front. The depth of the light guide groove 17 becomes shallower from the through hole 16 toward the front.

[0063] As Figure 1 and Figure 3 As shown, at the center in the left-right direction in the lower part of the base main body portion 15, a rearview mirror mounting hole 18 that penetrates the base main body portion 15 from the front to the rear is formed. The rearview mirror mounting hole 18 is disposed in front of the light guide groove 17. Inside the rearview mirror mounting hole 18, a rearview mirror base 22 that supports the interior rearview mirror 21 is disposed. The rearview mirror base 22 is combined with the inner side surface of the front window plate 2 by a double-sided tape or an adhesive. After the rearview mirror base 22 extends downward from the front window plate 2, it bends and extends rearward. An interior rearview mirror 21 is provided at the rear end of the rearview mirror base 22.

[0064] In the base 6, the portion of the central part of the light guide groove 17 in the left-right direction may also be formed by a detachable additional component 24. The additional component 24 can be detachably mounted on the base 6 by elastic claws or the like. In a state where the base 6 is combined with the front window plate 2, the additional component 24 is detachable relative to the base 6. By removing the additional component 24 from the base 6, the inside of the light guide groove 17 or the inner side surface of the front window plate 2 can be cleaned. In addition, the additional component 24 may also be combined in such a way that it can rotate about an axis extending left and right at the front end portion and is detachably engaged and fixed to the base 6 at the rear end portion.

[0065] As Figure 2As shown, at the upper part behind the base 6, a device locking portion 26 is provided for detachably engaging and fixing the electronic device 5. The device locking portion 26 is formed by a plurality of elastic claws or locking recesses. In the present embodiment, the device locking portion 26 has a pair of left and right locking recesses for engaging and fixing the front end portion of the electronic device 5 and an elastic claw for engaging and fixing the rear end of the electronic device 5. Through the device locking portion 26, the electronic device 5 is mounted on the rear surface of the base 6. When the electronic device 5 is a camera, in the state where the electronic device 5 is mounted on the rear surface of the base 6, the lens of the camera is disposed at a position corresponding to the through hole 16. When the electronic device 5 is a radar, the transmitting portion and the receiving portion may be disposed at positions corresponding to the through hole 16.

[0066] As Figure 1 , Figure 2 and Figure 7 shown, the bracket 11 can be combined with at least one of the vehicle roof panel and the roof lining 3B. In the present embodiment, the bracket 11 is provided on the roof lining 3B. The bracket 11 may also be integrally formed with the roof lining 3B. The bracket 11 has a front edge portion 11A extending left and right, left and right side edge portions 11B extending rearward from the left and right ends of the front edge portion 11A, and a rear edge portion 11C extending left and right and respectively combined with the rear ends of the left and right side edge portions 11B, and the bracket 11 is formed in a quadrilateral frame shape. The bracket 11 is provided at the edge portion of the mounting hole 28 that penetrates the roof lining 3B up and down. The roof console 29 is disposed inside the bracket 11. The roof console 29 can be fastened to the vehicle roof panel by a fastening member 29A such as a fastener. The roof console 29 may be an interior light or a display or the like.

[0067] As Figure 1 , Figure 2 and Figure 4 shown, the first cover 9 has a cover main body portion 31 formed in a plate shape and a pair of left and right cover side wall portions 32 respectively provided at the left and right side edges of the cover main body portion 31. In the state where the first cover 9 is mounted on the base 6 and the bracket 11, the cover main body portion 31 extends forward and backward below the base 6. The left and right cover side wall portions 32 extend upward from the cover main body portion 31. The upper edges of the respective cover side wall portions 32 are inclined upward and rearward and extend along the inner side surface of the front window plate 2. A plurality of ventilation holes 33 are formed in the cover main body portion 31.

[0068] As Figure 2 shown, the first engaging portion 7 has a locking recess 41 provided on one of the base 6 and the first cover 9 and a locking piece 42 provided on the other of the base 6 and the first cover 9 and inserted into the locking recess 41. In the present embodiment, a pair of left and right locking recesses 41 are provided on the base 6, and a pair of locking pieces 42 are provided on the first cover 9.

[0069] As Figure 2 and Figure 3 shown, a pair of left and right support walls 44 protruding downward are provided at the lower end portion behind the base 6. The pair of left and right support walls 44 face each other in the left - right direction. A pair of locking recesses 41 are provided on the corresponding support walls 44 in the left - right direction. The pair of support walls 44 are arranged on the left and right sides of the rear - view mirror mounting hole 18 on the lower surface of the base 6. Each locking recess 41 is recessed forward from the rear edge of each support wall 44 and penetrates in the left - right direction.

[0070] The locking recess 41 has a first wall portion 41A and a second wall portion 41B facing each other in a first direction, and opens in a second direction perpendicular to the first direction. In the present embodiment, the first direction corresponds to the up - down direction, and the second direction corresponds to the front - rear direction. The first wall portion 41A constitutes the upper wall of the locking recess 41, and the second wall portion 41B constitutes the lower wall of the locking recess 41.

[0071] A pair of locking pieces 42 are restricted from moving in the up - down direction (first direction) and from moving forward in the front - rear direction (second direction) through the corresponding locking recesses 41. On the other hand, movement in the left - right direction and backward movement are allowed.

[0072] As Figure 4 and Figure 5 shown, at the center in the left - right direction of the front edge of the first cover 9, a recess 51 recessed backward is formed. The recess 51 penetrates in the thickness direction (up - down direction) of the first cover 9. The recess 51 is arranged below the rear - view mirror mounting hole 18. A pair of locking pieces 42 are provided on the left and right outer sides of the recess 51 at the front edge of the first cover 9.

[0073] Each locking piece 42 has: a first portion 42A that abuts against one of the first wall portion 41A and the second wall portion 41B; and a second portion 42B that protrudes from the first portion 42A and abuts against the other of the first wall portion 41A and the second wall portion 41B, and has a higher flexibility than the first portion 42A. In the present embodiment, the first portion 42A abuts against the second wall portion 41B, and the second portion 42B abuts against the first wall portion 41A.

[0074] As Figures 4 to 6As shown, each first part 42A has: a flat base 42E having a first surface 42C facing the first wall part 41A and a second surface 42D facing the second wall part 41B; a through hole 42F that penetrates the base 42E from the first surface 42C to the second surface 42D. Each base 42E extends forward of the front edge of the first cover body 9. In addition, each first part 42A has a thick wall part 42G that extends along the front edge of the base 42E and is thicker than the thickness of the base 42E. Each thick wall part 42G extends in the left-right direction of the base 42E. The thick wall part 42G abuts against one of the first wall part 41A and the second wall part 41B. The thick wall part 42G can be formed into a cylindrical shape, for example. The rigidity of the locking piece 42 is improved by the thick wall part 42G.

[0075] The second part 42B projects from the hole wall surface 42H that defines the through hole 42F. A part of the hole wall surface 42H is formed by the thick wall part 42G, and the second part 42B can also extend from the thick wall part 42G. The connecting part of the second part 42B and the thick wall part 42G can be formed into a smooth curved surface. In the present embodiment, the front part of the hole wall surface 42H is formed by the rear surface of the thick wall part 42G.

[0076] In a state where the locking piece 42 is inserted into the locking recess 41, the second part 42B is inclined with respect to the front-rear direction as the first direction and extends toward the opening end side of the locking recess 41. In the present embodiment, the second part 42B extends rearward and upward from the front part of the hole wall surface 42H and projects above the first surface 42C. Thereby, the displacement range of the second part 42B can be expanded, and the second part 42B can abut against the first wall part 41A more surely. In addition, when the locking piece 42 is inserted into the locking recess 41, the second part 42B can be prevented from being caught by the edge part of the locking recess 41. In addition, damage to the second part 42B can be suppressed.

[0077] The thickness of the second part 42B is smaller than the thickness of the base 42E. Accordingly, the second part 42B has higher flexibility than the base 42E. The second part 42B constitutes a leaf spring. The second part 42B is joined to the second surface 42D side of the hole wall surface 42H and projects outside the through hole 42F across the first surface 42C. That is, the joining part of the second part 42B and the hole wall surface 42H is offset to the second surface 42D side with respect to the center in the thickness direction of the base 42E.

[0078] The second part 42B has a bent portion 42J that bends toward the through-hole 42F at the middle portion protruding from the through-hole 42F. The second part 42B bends at a right angle at the bent portion 42J. The second part 42B abuts against the first wall portion 41A at the bent portion 42J. Thus, the second part 42B can slide smoothly relative to the first wall portion 41A, and the user can smoothly insert the locking piece 42 into the locking recess 41.

[0079] When viewed from above, the rear end of the second part 42B is disposed at a position overlapping the through-hole 42F. Thus, when the second part 42B is pushed toward the base portion 42E side, the rear end of the second part 42B enters the through-hole 42F, and interference between the second part 42B and the base portion 42E can be avoided.

[0080] When each locking piece 42 is inserted into the corresponding locking recess 41, the second part 42B is elastically deformed by being pushed by the first wall portion 41A, and due to the restoring force of the second part 42B, the thick wall portion 42G of the first part 42A abuts against the second wall portion 41B. Thus, each locking piece 42 is snap-fitted and fixed to the corresponding locking recess 41 without looseness.

[0081] A buffer member 47 may also be provided between each locking piece 42 and the corresponding locking recess 41. The buffer member 47 can be formed of, for example, non-woven fabric or polyurethane sheet. The buffer member 47 may also be adhered to the surface of the locking piece 42.

[0082] As Figure 3 shown, left and right front biasing portions 53 are provided on the left and right inner sides of each support wall 44. Each front biasing portion 53 has: a wall portion 53A protruding downward from the rear surface of the base 6; a first elastic piece 53B extending forward and toward the left and right outer sides from the rear edge of the wall portion 53A. Each first elastic piece 53B abuts against the corresponding locking piece 42 from the left and right inner sides, and biases the locking piece 42 toward the left and right outer sides.

[0083] As Figure 2 and Figure 7 shown, the second engaging portion 8 couples the rear end portion of the first cover body 9 to the front end portion of the bracket 11. The second engaging portion 8 has: a pair of left and right plate-shaped support portions 55 protruding forward from the front edge portion 11A of the bracket 11; support holes 56 penetrating the support portions 55 in the vertical direction (first direction). Each support hole 56 is formed as a rectangle extending in the left and right direction.

[0084] The rear edge of the first cover body 9 is disposed behind the upper edge of the base 6 and behind the front edge portion 11A of the bracket 11. That is, the rear portion of the first cover body 9 is disposed below the front edge portion 11A of the bracket 11. As Figure 2 、 Figure 4 and Figure 8As shown, the second engaging portion 8 has a tab portion 58 that protrudes upward from the upper surface of the cover body portion 31, and an elastic claw 59 mounted on the tab portion 58.

[0085] The tab portion 58 has a pair of left and right side wall portions 58A and a connecting wall portion 58B that connects the pair of side wall portions 58A. The surfaces of the respective side wall portions 58A face the left and right directions and extend in the front and rear directions. The surface of the connecting wall portion 58B faces the front and rear directions and extends in the left and right directions. In plan view, the tab portion 58 is formed in an H shape. The elastic claw 59 covers the connecting wall portion 58B from above and is snap-fitted and fixed to the connecting wall portion 58B. The elastic claw 59 may have a front side piece 59A that extends from the upper end of the connecting wall portion 58B toward the front side, and a rear side piece 59B that extends from the upper end of the connecting wall portion 58B toward the rear side. The front side piece 59A and the rear side piece 59B of the elastic claw 59 are snap-fitted and fixed to the connecting wall portion 58B, and movement in the up and down direction is restricted. The front side piece 59A and the rear side piece 59B of the elastic claw 59 can move in the front and rear directions relative to the connecting wall portion 58B by elastic deformation. The middle portion of the front side piece 59A protrudes in front of the front edges of the left and right side wall portions 58A, and the rear side piece 59B protrudes behind the rear edges of the left and right side wall portions 58A.

[0086] The pair of left and right tab portions 58 and the elastic claws 59 are inserted into the corresponding support holes 56 from the left and right. The front edges and the rear edges of the pair of side wall portions 58A abut against the front edge portion and the rear edge portion of the support hole 56. Thereby, the movement of the pair of tab portions 58 in the front and rear directions is restricted by the corresponding support holes 56. In addition, by snap-fitting and fixing each elastic claw 59 to the upper edge of the corresponding support hole 56, the movement of each tab portion 58 relative to the support hole 56 in the up and down direction is restricted. The left and right widths of each tab portion 58 are formed to be smaller than the left and right widths of the corresponding support hole 56. Thereby, each tab portion 58 can move in the left and right directions relative to the corresponding support hole 56.

[0087] At least one of the pair of tab portions 58 has a biasing member 58C on one of the side wall portions 58A and a rib 58D on the other side wall portion 58A. The biasing member 58C extends laterally from the side wall portion 58A and abuts against the left or right side edge portion of the support hole 56. The biasing member 58C is a spring piece and can be elastically deformed in the left and right directions. Through the biasing member 58C, the rib 58D abuts against the support hole 56. Thereby, one of the tab portions 58 is fixed without looseness in the left and right directions relative to the corresponding support hole 56.

[0088] As Figure 2 and Figure 8As shown in the figure, a second cover body 71 is installed at the front part of the first cover body 9. The second cover body 71 has a left-side member 71A and a right-side member 71B which are combined with each other. The left-side member 71A and the right-side member 71B are respectively combined with a coupling piece 72 provided at the front end part under the first cover body 9. The second cover body 71 bulges downward from the front end part of the first cover body 9. The second cover body 71 covers the concave part 51 of the first cover body 9 and the front end part of the base 6. A through hole 71C for the rearview mirror base 22 to pass through is formed at the rear part of the second cover body 71. A ventilation hole 71D for introducing the air inside the vehicle compartment into the second cover body is formed at the front part of the second cover body 71.

[0089] Next, an installation method for installing the first cover body 9 to the base 6 and the bracket 11 will be described. First, the operator inserts each locking piece 42 of the first cover body 9 into the corresponding locking concave part 41 from the rear. At this time, the left and right front side biasing parts 53 push the corresponding locking pieces 42 toward the left and right outer sides. Thereby, the first cover body 9 is roughly centered in the left and right directions relative to the base 6.

[0090] In a state where each locking piece 42 is inserted into each locking concave part 41, the first cover body 9 can rotate within a specified range with the thick wall part 42G of each locking piece 42 as the center, and the rear end of the first cover body 9 can move up and down. Next, the operator moves the rear end of the first cover body 9 upward and inserts a pair of tab parts 58 into the corresponding support holes 56. Thereby, each elastic claw 59 is engaged and fixed to the hole edge of the support hole 56. Thereby, the first cover body 9 is installed on the base 6 and the bracket 11. After that, the left-side member 71A and the right-side member 71B of the second cover body 71 are installed on the first cover body 9.

[0091] According to the above embodiment, the first part 42A of each locking piece 42 abuts against the second wall part 41B of the corresponding locking concave part 41, and the second part 42B abuts against the first wall part 41A. Therefore, the locking piece 42 is engaged and fixed to the locking concave part 41 without looseness and wobbling in the up and down directions. That is, in the equipment installation structure 1, looseness and wobbling can be suppressed.

[0092] The above specific embodiments have been described, but the present invention is not limited to the above embodiments and can be widely modified. For example, it is also possible that the second part 42B extends linearly without having a bent part 42J. In addition, in other embodiments, it may also be that the first part 42A abuts against the first wall part 41A and the second part 42B abuts against the second wall part 41B.

Claims

1. A device mounting structure for mounting an electronic device on a vehicle structure, characterized in that, have: a base, which is combined with the structure and supports the electronic device; a cover body, which is combined with the base via a first engaging portion and a second engaging portion, and covers the electronic device together with the base; The first engaging portion comprises: a locking recess provided on one of the base and the cover; and a locking piece provided on the other of the base and the cover and inserted into the locking recess. The locking recess has a first wall portion and a second wall portion that are opposite to each other in a first direction, and is open in a second direction perpendicular to the first direction. The locking piece includes: a first portion that abuts against one of the first wall portion and the second wall portion; and a second portion that protrudes from the first portion and abuts against the other of the first wall portion and the second wall portion and has higher flexibility than the first portion. The cover and the base are engaged with each other at the second engaging portion, so that the cover is restricted from moving relative to the base in the second direction. The first portion has: a flat plate-shaped base having a first surface opposite to the first wall portion and a second surface opposite to the second wall portion; a through hole extending through the base from the first surface to the second surface; The second portion protrudes from the hole wall surface defining the through hole, The thickness of the second portion is smaller than the thickness of the base portion, The second portion is coupled to the second surface side of the hole wall surface and protrudes beyond the first surface to the outside of the through hole. The coupling portion between the second portion and the hole wall surface is offset to the second surface side relative to the center of the base in the thickness direction.

2. The device installation structure according to claim 1, wherein When the locking piece is inserted into the locking recess, the second portion is inclined with respect to the first direction and extends toward the opening end side of the locking recess.

3. The device installation structure according to claim 2, characterized in that, The second portion constitutes a leaf spring.

4. The device installation structure according to claim 1, characterized in that The second portion has a bent portion bent toward the through-hole at a middle portion protruding from the through-hole.

5. The device installation structure according to claim 1 or 4, characterized in that The first portion has a thick wall portion extending along the front end edge of the base portion and being thicker than the base portion. The thick wall portion abuts against one of the first wall portion and the second wall portion.

6. The device installation structure according to claim 5, characterized in that, A portion of the hole wall is formed by the thick wall portion, The second portion extends from the thick-walled portion.

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