JP2013029162A - Mounting structure of electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of an electronic apparatus, configured to mount an electronic apparatus on a base member with a fastening member even if the diameter of a screw hole of the base member is larger than the diameter of a mounting hole of the electronic apparatus.SOLUTION: A fastening member body 50 of a fastening member 30 has a tip including a threaded part 53, which can be deformed in a radial direction by slits 54 extended axially. While the diameter of the threaded part 53 is reduced, the threaded part 53 penetrates through a mounting hole 12 of a micro photo sensor 10 and is inserted in a screw hole 41 of the base member 40. A pin 60 is fitted into the fastening member body 50 to increase the diameter of the threaded part 53 of the fastening member body 50, and screwed in the screw hole 41 of the base member 40. A head part 52 of the fastening member body 50 has a cut-out part 56 into which a minus screw driver is inserted to rotate the fastening member body 50 and to screw the threaded part 53 of the fastening member body 50 into the screw hole 41 of the base member 40.

Description

  The present invention relates to an electronic device mounting structure.

As an electronic device mounting structure, a configuration in which a fastening member is screwed into a screw hole formed in a base member through an mounting hole formed in the electronic device is known (for example, Patent Document 1).
Specifically, as shown in FIG. 9, when the electronic device 100 such as a sensor is attached to the base member 110 with the attachment screw 120, an attachment hole (through hole) 101 is prepared in a screw attachment portion of the electronic device 100. In addition, a screw hole 111 is processed in the base member 110 to be attached. Then, the electronic device 100 is attached by screwing the attachment screw 120 into the screw hole 111 of the base member 110 through the attachment hole 101 of the electronic device 100.

  In that case, the screw hole 111 and the attachment hole 101 need to be of a size suitable for the attachment screw 120. Specifically, for example, an M3 screw hole is machined in the base member 110, and an attachment hole 101 having a diameter of 3.5 mm is formed in the M3 screw attachment portion in the electronic device 100.

JP 2007-179990 A

By the way, when the electronic device 100 already attached is replaced with another electronic device, the diameter of the mounting hole 101 may be different.
For example, as shown in FIG. 9, the electronic device 100 is attached with the M3 attachment screw 120, but as shown in FIG. 10, the attachment hole 201 of the screw attachment portion of the electronic device 200 to be replaced is selected with M2. This is the case. That is, in the case of FIG. 10, an attachment hole (through hole) 201 having a diameter of 2.5 mm is formed.

  In this case, since it cannot be attached with the M3 screw, it is unavoidable to “reselect an electronic device that can be attached to the M3 screw” or “change the attachment position and apply the M2 screw processing to the base member 110”. Consideration must be given to selection and change of mounting position.

  Specifically, when an M3 screw hole is machined in the base member 110 to be attached and an M2 screw attachment portion (through hole of φ = 2.5 mm) is provided as an electronic device, attachment is not possible. For this reason, it is necessary to reselect an electronic device through which the M3 screw passes or to change the mounting position.

  An object of the present invention is to provide an electronic device mounting structure in which an electronic device can be attached to a base member by a fastening member even when the diameter of the screw hole of the base member is larger than the diameter of the mounting hole of the electronic device. is there.

  According to the first aspect of the present invention, the shaft portion of the fastening member passes through the mounting hole formed in the electronic device, and the threaded portion formed in the shaft portion is screwed into the screw hole formed in the base member. In the electronic device mounting structure in which the electronic device is fastened between the head of the fastening member and the base member, the fastening member includes a cylindrical fastening member main body and a rod-shaped pin, and the fastening member main body Has a threaded portion at the tip of the cylindrical shaft portion, and the length from the root of the head of the cylindrical shaft portion to the threaded portion is longer than the length of the mounting hole, and a plurality of slits extending in the axial direction The distal end side including the threaded portion can be deformed in the radial direction by the above, and in a state where the diameter of the threaded portion is reduced, the threaded portion penetrates the mounting hole of the electronic device and becomes a screw hole of the base member. Inserted and said pin The threaded portion of the fastening member main body is inserted into the fastening member main body and expanded by the pin, and the threaded portion is screwed into the screw hole of the base member, or the head of the fastening member main body or The gist of the invention is that the pin has a portion for rotating the fastening member main body to screw the threaded portion of the fastening member main body into the screw hole of the base member.

  According to the first aspect of the present invention, the fastening member main body has the threaded portion at the tip of the cylindrical shaft portion, and the length from the root of the head to the threaded portion in the cylindrical shaft portion is the mounting hole. The tip side including the threaded portion can be deformed in the radial direction by a plurality of slits extending in the axial direction and longer than the length, and the threaded portion penetrates the mounting hole of the electronic device in a state where the diameter of the threaded portion is reduced. Are inserted into the screw holes of the base member.

  A pin is fitted inside the fastening member body, the diameter of the threaded portion of the fastening member body is expanded by the pin, and the threaded portion is screwed into the screw hole of the base member. In the head or pin of the fastening member body, the fastening member body has a portion for rotating the fastening member body and screwing the threaded portion of the fastening member body into the screw hole of the base member. The threaded portion of the main body is screwed into the screw hole of the base member.

  In this way, by reducing the diameter of the threaded portion of the fastening member body, the mounting hole of the electronic device can be passed through, and the threaded portion of the fastening member body can reach the screw hole of the base member. Further, by inserting the pin into the inside of the fastening member body, the threaded portion of the fastening member body is expanded in diameter and screwed into the screw hole of the base member. Then, the fastening member body is rotated and the threaded portion of the fastening member body is screwed into the screw hole of the base member. As a result, even when the screw hole of the base member is larger than the mounting hole of the electronic device, the electronic device can be attached to the base member by the fastening member.

  According to a second aspect of the present invention, in the electronic device mounting structure according to the first aspect, the part to be screwed is inserted into a tool, and the fastening member body is rotated to thread the fastening member body. The gist is that it is a notch for screwing the portion into the screw hole of the base member.

According to invention of Claim 2, a tool can be inserted in a notch part and a fastening member main body can be rotated, and the threading part of a fastening member main body can be screwed in the screw hole of a base member.
According to a third aspect of the present invention, in the electronic device mounting structure according to the first or second aspect, a projection provided on one of the pin and the fastening member main body is fitted in a fitting portion provided on the other. The gist is that the pin is supported by the fastening member main body in a fastened state.

  According to the invention described in claim 3, the protrusion provided on one of the pin and the fastening member main body is fitted into the fitting portion provided on the other, whereby the pin is fastened to the fastening member main body. This prevents the pin from coming off.

  According to a fourth aspect of the present invention, in the electronic device mounting structure according to the third aspect, it is preferable that the protrusion is provided on the pin and the fitting portion is provided on the fastening member body.

  According to the present invention, even when the diameter of the screw hole of the base member is larger than the diameter of the mounting hole of the electronic device, the electronic device can be attached to the base member by the fastening member.

The perspective view which shows the positioning system of the pallet in embodiment. (A) is a top view which shows the attachment structure of the sensor in embodiment, (b) is a partial cross section figure which shows the attachment structure of a sensor. The exploded view which shows the attachment structure of the sensor in embodiment. (A) is sectional drawing in the AA line of Fig.2 (a), (b) is sectional drawing in the BB line of Fig.2 (a). (A) is a perspective view of a fastening member, (b) is a bottom view of a fastening member (C arrow view of Fig.5 (a)). The perspective view of a fastening member main body. The perspective view of a pin. (A), (b) is a partial cross section figure which shows the attachment structure of the sensor in embodiment. The exploded view which shows the attachment structure of a general sensor. The exploded view for demonstrating attachment of a sensor.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, in this embodiment, the mounting structure of the electronic device is applied to the mounting structure of the micro photosensor 10 as the electronic device.

  In FIG. 1, in the positioning system of the pallet 20, the pallet 20 is transported by the transport belts 21 and 22, and a dog 23 is provided on the side surface of the pallet 20. The U-shaped micro photo sensor 10 detects the dog 23 and stops the pallet 20.

  The micro photosensor 10 includes a mounting plate portion 11. As shown in FIGS. 2 and 3, a mounting hole 12 is formed in the mounting plate portion 11. The attachment hole 12 is a circular through hole. The mounting plate portion 11 of the micro photosensor 10 is disposed on the upper surface of the base member 40. A screw hole 41 is formed in the base member 40 so as to open on the upper surface of the base member 40.

  As shown in FIG. 1, the microphotosensor 10 is screwed and fixed to the base member 40 by the fastening member 30. That is, as shown in FIGS. 2 and 3, the threaded portion in which the shaft portion (cylindrical shaft portion 51) of the fastening member 30 penetrates the attachment hole 12 of the microphotosensor 10 and is formed in the shaft portion (cylindrical shaft portion 51). The microphotosensor 10 is fastened between the head 52 of the fastening member 30 and the base member 40 by screwing the portion 53 into the screw hole 41 of the base member 40. In the electronic device mounting structure of the present embodiment, the fastening member 30 includes a cylindrical fastening member main body 50 and a rod-like pin 60, as shown in FIG.

  As shown in FIG. 3, the screw hole 41 formed in the base member 40 is an M3 female screw, and the valley diameter is 3.0 mm. On the other hand, an M2 male screw (with an outer diameter of 2.0 mm) can pass through the mounting hole 12 formed in the mounting plate portion 11 of the microphotosensor 10. Specifically, the mounting hole 12 has a diameter of 2.5 mm.

As shown in FIG. 5, the fastening member main body 50 of the fastening member 30 has a cylindrical shape extending in the vertical direction, and a rod-like pin 60 can be fitted therein.
Specifically, the fastening member main body 50 has a cylindrical shaft portion 51 extending in the vertical direction, and a head 52 having a diameter larger than that of the cylindrical shaft portion 51 is formed at the upper end of the cylindrical shaft portion 51. The outer diameter of the cylindrical shaft portion 51 is slightly smaller than the inner diameter of the mounting hole 12, and the cylindrical shaft portion 51 can be inserted through the mounting hole 12. A threaded portion 53 is formed at the lower end of the cylindrical shaft portion 51. As shown in FIG. 2, the threaded portion 53 is an M3 male screw, and the outer diameter is 3.0 mm in a state where the pin 60 is fitted into the fastening member main body 50. A length L1 from the root of the head 52 to the threaded portion 53 in the cylindrical shaft portion 51 is longer than the length L2 of the mounting hole 12.

  On the lower end side of the cylindrical shaft portion 51, four slits 54 (see FIG. 5B) extending in the axial direction are formed. The four slits 54 are formed every 90 degrees. With these four slits 54, the tip end side including the threaded portion 53 in the cylindrical shaft portion 51 can be deformed in the radial direction, and in a state before the pin 60 is inserted into the fastening member main body 50, FIG. As shown, the threaded portion 53 is reduced in diameter so that it can penetrate the mounting hole 12.

  Thus, the fastening member main body 50 has the threaded portion 53 at the distal end portion of the cylindrical shaft portion 51, and the distal end side including the threaded portion 53 can be deformed in the radial direction by a plurality of slits 54 extending in the axial direction. It is. Then, as shown in FIG. 8A, the threaded portion 53 is inserted into the threaded hole 41 of the base member 40 through the mounting hole 12 of the microphotosensor 10 with the diameter of the threaded portion 53 reduced. .

  As shown in FIG. 6, a concave portion 55 that opens to the upper surface is formed at the center of the head 52 of the fastening member main body 50. The recess 55 is formed in a circular shape in plan view. The flange 62 of the pin 60 is inserted into the recess 55.

  As shown in FIG. 7, the pin 60 has a columnar portion 61 extending in the vertical direction, and the outer diameter of the columnar portion 61 is slightly smaller than the inner diameter of the cylindrical fastening member body 50. Then, from the state of FIG. 8A, as shown in FIG. 8B, the cylindrical portion 61 of the pin 60 is fitted into the fastening member main body 50. The diameter of the threaded portion 53 of the fastening member main body 50 is increased by the pin 60, and the threaded portion 53 is screwed into the screw hole 41 of the base member 40.

As described above, the cylindrical shaft portion 51 is inserted into the mounting hole 12 of the microphotosensor 10 and the threaded portion 53 can be temporarily fixed to the screw hole 41 of the base member 40.
As shown in FIG. 6, a notch 56 into which the tip of a minus screw driver 70 as a tool is inserted is formed on the top surface of the head 52 of the fastening member main body 50 every 180 degrees.

  As shown in FIGS. 3 and 7, a flange portion 62 having a diameter larger than that of the cylindrical portion 61 is formed at the upper end of the cylindrical portion 61 of the pin 60. The outer diameter of the flange portion 62 is slightly smaller than the inner diameter of the concave portion 55 of the fastening member main body 50. As shown in FIG. 4, the flange portion 62 of the pin 60 is fitted into the concave portion 55 of the head portion 52 of the fastening member main body 50, and in this state, the distal end portion of the minus screw driver 70 is inserted into the notch portion 56. Be able to. Then, from the state of FIG. 8B, the leading end portion of the minus screw driver 70 can be inserted into the notch portion 56 of the fastening member main body 50, and the fastening member main body 50 can be rotated by the minus screw driver 70. . Thereby, as shown in FIG. 2, the threaded portion 53 of the fastening member main body 50 is screwed into the screw hole 41 of the base member 40. That is, the fastening member main body 50 is fixed by the minus screw driver 70 in a state in which the cylindrical portion 61 of the pin 60 is inserted into the fastening member main body 50 and fixed so that the tip of the cylindrical shaft portion 51 of the fastening member main body 50 does not become the inner diameter side. It is tightened by rotating and tightening.

  As shown in FIGS. 3 and 7, the protrusions 63 are provided at two positions on the outer peripheral surface of the flange portion 62 of the pin 60 at positions separated by 180 degrees. The outer diameter of the protrusion 63 is larger than the inner diameter of the recess 55 of the head 52 of the fastening member main body 50. Therefore, when the pin 60 is inserted into the fastening member body 50, the flange portion 62 of the pin 60 is fitted into the recess 55 of the head portion 52 of the fastening member body 50. At this time, the protrusion 63 of the pin 60 is fastened. It is pushed into (pressed into) the recess 55 of the member main body 50. On the other hand, as shown in FIG. 6, the head portion 52 of the fastening member main body 50 is provided with a fitting portion (fitting hole) 57 into which the protrusion 63 of the pin 60 is fitted. Accordingly, the protrusion 63 of the pin 60 is pushed (press-fitted) into the recess 55 of the fastening member main body 50, and the protrusion 63 of the pin 60 is fitted into the fitting portion 57 of the fastening member main body 50. This prevents the pin 60 from coming off.

  3 and 7, a slanted surface 63a is formed on the lower surface of the projection 63 of the pin 60, and the inner surface of the recess 55 of the head 52 of the fastening member main body 50 as shown in FIG. An oblique surface 55a is also formed at the corner on the side. Therefore, the inclined surface 63 a of the projection 63 of the pin 60 contacts the inclined surface 55 a of the recess 55 of the head 52 of the fastening member main body 50, and the protrusion 63 of the pin 60 slides smoothly with respect to the fastening member main body 50. It can be done. Thereby, the protrusion 63 of the pin 60 can be easily fitted to the fitting portion 57 of the fastening member main body 50.

  Thus, the pin 60 is supported by the fastening member main body 50 by the retaining mechanism in a fastened state. The retaining mechanism is a protrusion 63 provided on one of the pin 60 and the fastening member main body 50 and a fitting portion 57 provided on the other and into which the protrusion 63 fits. The protrusion 63 is provided on the pin 60, and the fitting portion 57 is provided on the fastening member main body 50.

Next, the operation of the assembly structure of the micro photosensor 10 configured as described above will be described.
As an assembling procedure, first, the base member 40 and the micro photosensor 10 are prepared. A 3M screw hole 41 is formed in the base member 40. A mounting hole 12 is formed in the mounting plate portion 11 of the microphotosensor 10. The mounting hole 12 is for an M2 screw and has a diameter of 2.5 mm. That is, in order to pass the M3 screw, the diameter of the mounting hole 12 needs to be 3.0 mm or more (for example, 3.5 mm), but the mounting hole 12 for the M2 screw having a diameter smaller than 3.0 mm is formed. Has been.

  The threaded portion 53 of the cylindrical shaft portion 51 of the fastening member main body 50 is reduced in diameter by four slits 54 extending in the axial direction. Therefore, as shown in FIG. 8A, the threaded portion 53 of the cylindrical shaft portion 51 is inserted into the screw hole 41 of the base member 40 through the mounting hole 12 of the mounting plate portion 11 of the microphotosensor 10.

  Subsequently, the cylindrical portion 61 of the pin 60 is inserted into the fastening member main body 50. As a result, as shown in FIG. 8B, the threaded portion 53 of the fastening member main body 50 spreads to the outer diameter side by the cylindrical portion 61 of the pin 60 and is screwed into the screw hole 41 of the base member 40.

Thus, the cylindrical portion 61 of the pin 60 is inserted into the fastening member main body 50 and fixed so that the tip of the cylindrical shaft portion 51 of the fastening member main body 50 does not become the inner diameter side.
Further, in this state, the distal end portion of the minus screw driver 70 is inserted into the notch portion 56 of the head portion 52 of the fastening member body 50, the fastening member body 50 is rotated and tightened, and fastening is performed as shown in FIG. .

Next, sensor compatibility in the assembly structure of the micro photosensor 10 will be described.
Consider a case where the electronic device (micro photo sensor) 100 already attached as shown in FIG. 9 is replaced with another electronic device (micro photo sensor) 200 as shown in FIG.

  As shown in FIG. 10, the diameter of the mounting hole 201 may be different. Specifically, in FIG. 9, the sensor is mounted with the M3 mounting screw 120, but as shown in FIG. 10, when the mounting hole 201 of the electronic device (micro photo sensor) to be replaced is selected with M2, etc. It is. That is, the mounting hole 201 having a diameter of 2.5 mm is formed.

  In the case of FIG. 10, when the micro photo sensor is attached, the screw hole 111 processed in the base member 110 to be attached is larger than the sensor attachment hole 201 and cannot be attached with a normal screw.

  Therefore, conventionally, since it cannot be attached with the M3 screw, it is unavoidable to “reselect a sensor that can be attached to the M3 screw” or “change the attachment position and apply the M2 screw processing to the base member 110”. We had to consider selection and change of mounting position. In the present embodiment, this can be avoided, and even when it is impossible to attach with a normal screw, it can be easily attached without additional work.

  As described above, in this embodiment, when the threaded portion 53 of the shaft portion of the fastening member 30 is in a state of being reduced in diameter (by doing so), the micro photo sensor mounting hole (through hole) 12 is passed. Thus, the threaded portion 53 of the shaft portion of the fastening member 30 can reach the screw hole 41 of the base member 40. Further, by inserting the pin 60, the outer surface of the threaded portion 53 of the fastening member 30 is fitted into the inner surface of the screw hole 41 of the base member 40, and it is necessary to rotate the screw many times as in the past. Will disappear. Further, in the state where the pin 60 is inserted into the fastening member main body 50, the fastening member main body 50 can be rotated by inserting the minus screw driver 70 into the notch 56 formed in the head 52 of the fastening member main body 50 ( Can be tightened). Therefore, for example, even if loosening occurs after some fastening, the fastening can be performed again.

  As described above, the sensor mounting structure according to the present embodiment has a compatible configuration in which the sensor can be mounted on the base member 40 even when the mounting hole is different when replacing the already mounted sensor with another sensor. ing.

As described above, according to the present embodiment, the following effects can be obtained.
(1) As a sensor mounting structure as an electronic device, the fastening member 30 includes a cylindrical fastening member main body 50 and a rod-like pin 60. The fastening member main body 50 has a threaded portion 53 at the tip of the cylindrical shaft portion 51, and a length L1 from the root of the head 52 to the threaded portion 53 in the cylindrical shaft portion 51 is a length L2 of the mounting hole 12. The tip end side including the threaded portion 53 can be deformed in the radial direction by a plurality of slits 54 that are longer and extend in the axial direction. Then, the threaded portion 53 is inserted into the threaded hole 41 of the base member 40 through the mounting hole 12 of the microphotosensor 10 with the diameter of the threaded portion 53 reduced. The pin 60 is fitted into the fastening member main body 50, the diameter of the threaded portion 53 of the fastening member main body 50 is expanded by the pin 60, and is screwed into the screw hole 41 of the base member 40. The head 52 of the fastening member body 50 has a notch 56 as a part for rotating the fastening member body 50 and screwing the threaded portion 53 of the fastening member body 50 into the screw hole 41 of the base member 40. Have. That is, the part to be screwed is inserted into the screw hole 41 of the base member 40 by inserting the screwdriver 70 as a tool and rotating the fastening member body 50 to screw the threaded portion 53 of the fastening member body 50 into the screw hole 41 of the base member 40. It is the notch part 56 for this.

  As a result, when the micro photo sensor 10 is attached, the diameter of the screw hole 41 processed in the base member 40 to be attached is larger than the diameter of the attachment hole 12 of the micro photo sensor 10 and cannot be attached with a normal screw. It can be easily installed without any additional work. That is, even when the diameter of the screw hole 41 of the base member 40 is larger than the diameter of the mounting hole 12 of the micro photosensor 10 as an electronic device, the microphotosensor 10 can be attached to the base member 40 by the fastening member 30.

  Further, it is not necessary to rotate the screw many times as in the prior art. Further, since the notch portion 56 into which the screw driver can be inserted is formed in the head portion 52 of the fastening member 30, the screw machining portion 53 of the fastening member 30 is turned into the screw hole of the base member 40 by rotating the fastening member 30. It can be screwed into 41 and tightened.

  (2) The projection 60 provided on one of the pin 60 and the fastening member main body 50 is fitted to the fitting portion 57 provided on the other, whereby the pin 60 is supported by the fastening member main body 50 in a fastened state. ing. Specifically, the protrusion 63 is provided on the pin 60, and the fitting portion 57 is provided on the fastening member main body 50. Therefore, the pin 60 can be prevented from coming off.

In addition, you may change this embodiment as follows.
In the above embodiment, the notch 56 into which the minus screw driver 70 as a tool can be inserted is formed in the head 52 of the fastening member main body 50. Instead, a plus screw driver as a tool is inserted. A notch that can be formed may be formed.

Further, the outer shape of the head 52 of the fastening member body 50 may be a bolt head shape such as a hexagon, and the fastening member body 50 may be rotated by a tool (for example, a wrench).
Further, a hexagonal hole may be formed in the head 52 of the fastening member main body 50 to form a bolt head with a hexagonal hole, and the fastening member main body 50 may be rotated by a tool (for example, a hexagonal bar spanner).

A wing may be provided on the head 52 of the fastening member main body 50 to form a bow bolt shape, and the fastening member main body 50 may be rotated by hand.
A wing may be provided on the flange portion 62 of the pin 60 to form a butterfly bolt shape, and the fastening member body 50 may be rotated by hand.

  In this way, the fastening member body 50 is rotated to the head 52 or the pin 60 of the fastening member body 50 in various structures, and the threaded portion 53 of the fastening member body 50 is screwed into the screw hole 41 of the base member 40. It can be set as the structure which has a part for.

  The number of the slits 54 formed in the cylindrical shaft portion 51 in the fastening member main body 50 is “4”. However, the number of slits is not limited to this, and the number of slits is “5” or more even if “3”, for example. There may be.

The pin 60 may be a square bar having a square cross section other than a round bar.
The number of screw threads in the threaded portion 53 of the fastening member body 50 is arbitrary.
-The shape of the screw thread in the threaded portion 53 of the fastening member body 50 is arbitrary, and may be, for example, a triangular screw.

  As a retaining mechanism, the pin 60 is provided with the protrusion 63 and the fastening member main body 50 is provided with the fitting portion 57. However, the fastening member main body 50 may be provided with the protrusion 63 and the pin 60 may be provided with the fitting portion 57. .

-Although the screw hole 41 was a recessed part opened to the upper surface of the base member 40, you may penetrate the base member 40. FIG.
In the above embodiment, the present invention is applied to the mounting structure of the micro photo sensor 10 as an electronic device. However, the present invention is not limited to this, and the electronic device may be a sensor other than the micro photo sensor, for example.

  In the above-described embodiment, the present invention is applied to a sensor mounting structure as an electronic device. May be.

  DESCRIPTION OF SYMBOLS 10 ... Micro photo sensor, 12 ... Mounting hole, 30 ... Fastening member, 40 ... Base member, 41 ... Screw hole, 50 ... Fastening member main body, 51 ... Cylindrical shaft part, 52 ... Head, 53 ... Screw processing part, 54 ... Slit, 56 ... Notch part, 57 ... Fitting part, 60 ... Pin, 63 ... Protrusion, 70 ... Minus screw driver.

Claims (4)

A shaft portion of the fastening member passes through a mounting hole formed in the electronic device, and a threaded portion formed in the shaft portion is screwed into a screw hole formed in the base member, so that the electronic device has a head portion of the fastening member. In the mounting structure of the electronic device clamped between the base member and the base member,
The fastening member includes a cylindrical fastening member main body and a rod-shaped pin,
The fastening member main body has a threaded portion at the tip of the cylindrical shaft portion, and the length from the root of the head to the threaded portion in the cylindrical shaft portion is longer than the length of the mounting hole, and in the axial direction. The distal end side including the threaded portion can be radially deformed by a plurality of slits extending, and the threaded portion penetrates the mounting hole of the electronic device in a state where the diameter of the threaded portion is reduced. Inserted into the screw hole
The pin is fitted into the fastening member body, the threaded portion of the fastening member body is expanded by the pin, and the threaded portion is screwed into the screw hole of the base member.
The head of the fastening member body or the pin has a portion for rotating the fastening member body and screwing a threaded portion of the fastening member body into a screw hole of the base member. Electronic device mounting structure.   The part to be screwed is a notch part for inserting a tool and rotating the fastening member body to screw the threaded part of the fastening member body into the screw hole of the base member. The mounting structure for an electronic device according to claim 1.   A projection provided on one of the pin and the fastening member main body is fitted into a fitting portion provided on the other, whereby the pin is supported by the fastening member main body in a fastened state. The electronic device mounting structure according to claim 1 or 2.   The electronic device mounting structure according to claim 3, wherein the protrusion is provided on the pin, and the fitting portion is provided on a fastening member body.

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