JP5639019B2 - Switch button mounting structure - Google Patents

Description

  The present invention relates to a push button type switch button mounting structure provided in various electronic devices, for example.

  There is a snap-fit structure that uses elastic deformation to attach a plurality of members. As an example of this type of snap-fit structure, an electronic device having a structure in which a switch cover, which is a switch button that can be pressed, is snap-fitted to a case has been proposed (see, for example, Patent Document 1).

  In the conventional snap-fit structure described in Patent Document 1, a locking portion is formed at the free end of the leg piece standing from the back surface of the switch cover, and the switch fitting of the counterpart case is performed. The both-end fixed beam formed in the hole is formed with a protrusion protruding and locked to the locking portion of the switch cover. The switch cover is fitted and pressed into the switch fitting hole of the case, and the locking portion of the switch cover is snap-fitted to the protrusion of the case, thereby preventing the switch cover from coming off from the case.

JP 2008-1111516 A

  The conventional snap fit structure described in Patent Document 1 prevents the switch cover from coming off by snap fitting the switch cover into the switch fitting hole of the case where the switch cover is pressed. Therefore, when assembling the switch cover and the case, it is necessary to have enough strength to withstand the stress acting on the switch cover leg piece and the protrusion of the case, and it is necessary to ensure an allowable range for snap fitting to the switch fitting hole. . As a result, the lengths and thicknesses of the leg pieces of the switch cover and the protrusions of the case are restricted, and the internal shape and internal structure of the switch fitting hole of the case are restricted, so that the degree of freedom in design is low.

  An object of the present invention is to provide a switch button mounting structure having a simple structure capable of securing the switch button without being restricted by the shape and structure.

[1] The present invention includes first and second mounting pieces projecting in a direction intersecting the pressing operation direction on both sides of the switch button , and the first side of the case holding the switch button has the first A receiving portion for inserting and locking the mounting piece, a receiving portion for receiving the second mounting piece on the other side of the case, and a removal of the second mounting piece . An insertion receiving portion into which a removal preventing member for preventing is inserted, and a guide portion for inserting and guiding the removal preventing member is provided on one of the insertion receiving portion and the removal preventing member, and the insertion receiving portion and the On the other side of the slip-off prevention member, there is an engagement portion that elastically attaches and engages the guide portion, and the guide portion and the engagement portion are elastic in a direction crossing the insertion direction of the slip-off prevention member. push the engaged mounting engagement, the second attachment piece on the back surface of the fall-off preventing member Gill is and on the switch button mounting structure, characterized in that the engagement.

[2] The switch button mounting structure of [1] Symbol mounting, the insert receiving portion and the housing receiving portion, it becomes the detachment prevention member through the hole portion formed in the support surface for supporting the upper surface of the case The guide portion is formed to protrude from the back surface of the removal preventing member and includes a guide piece for guiding the inside of the hole portion of the insertion receiving portion, and the engaging portion is formed in the hole portion of the insertion receiving portion. Preferably, the guide piece is made of an elastic engagement piece that elastically engages with an engagement hole formed in the guide piece.

[ 3 ] In the switch button mounting structure according to the above [ 1 ], it is preferable that the locking receiving portion is formed of a hole formed at a switch connecting side end portion of the case.

[4] The switch button mounting structure of the above-mentioned [1] or [2] Symbol mounting, the fall-off preventing member, it is preferable that a decorative member which decorate the casing.

  The switch button mounting structure of the present invention acts so as to prevent the stress applied to the switch button by the drop prevention member when the drop prevention member is assembled, and prevents the switch button from coming off.

It is a disassembled perspective view which shows roughly the portable machine provided with the switch button attachment structure which is preferable embodiment of this invention. It is principal part sectional drawing which abbreviate | omits a part of internal structure in the portable device of FIG. 1, and is shown typically. (A) is a figure which shows typically the case provided with the switch button mounting structure of this invention, (b) is the arrow cross-sectional enlarged view of the IIIb-IIIb line | wire of (a). (A)-(c) is a figure for demonstrating an example of the attachment procedure of a switch button. (A) And (b) is a figure for demonstrating a state when a switch button is retained by the switch button attachment procedure of FIG.

  Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

(Overall configuration of portable device)
In FIG. 1 and FIG. 2, reference numeral 1 generally indicates a portable device that remotely operates a control device for electrically locking or unlocking a locking device arranged in a vehicle, for example, by wireless communication. Yes. The portable device 1 includes an upper case 2 and a lower case 3. The upper case 2 and the lower case 3 are assembled in a state where they are abutted via an L-shaped gripping member 4, so that they are attached at the hook connecting portion formed by the hook 2 a of the upper case 2 and the hook hole 3 a of the lower case 3. The case body is fixed and long in one direction.

  On the upper surface of the upper case 2, as shown in FIGS. 1 and 2, three switch buttons 5, 5, and 5 are provided. A plate-like mechanical key 7 for mechanically driving a locking device of a vehicle to lock and unlock the component is provided in the component housing space 6a that opens to the side walls of the upper case 2 and the lower case 3. The upper case 2, the lower case 3, and the switch button 5 are made of a resin material such as ABS or PC. The holding member 4 is made of a metal material such as zinc die cast, and the mechanical key 7 is made of a metal material such as white or white.

  As shown in FIGS. 1 and 2, the upper surface of the upper case 2 on the design surface side is partitioned into three switch housing spaces 6b, 6b, 6b via two partition walls 2b, 2b. In the switch housing space 6b, the switch button 5 is housed and held so as to be pressed through a cushion 8 made of a silicon material or the like.

  As shown in FIGS. 1 and 2, an operation protrusion 5 a that operates the tact switch 9 mounted on the circuit board 11 protrudes from the center of the back surface of the switch button 5. The switch button 5 is not particularly limited. For example, a lock button / unlock button for locking / unlocking a vehicle door, a luggage button for unlocking (opening) a luggage door, and the like. There is.

  As shown in FIGS. 1 to 3, a step portion having a substantially J-shaped support surface 2 g is formed in a part of the lower bottom portion of the switch housing space 6 b of the upper case 2. An upper space of the support surface 2g is used as a decoration member housing space, and a decoration member 30 for decorating the upper case 2 is supported on the support surface 2g. The decorative member 30 is made of, for example, a zinc die-cast metal material.

  As shown in FIGS. 1 and 2, the lower case 3 with respect to the upper case 2 houses a transponder 10, and a circuit board 11 on which a tact switch 9, a communication circuit and a control circuit (not shown) are mounted is silicon. It is accommodated via a packing 12 made of a material or the like. The lower case 3 further accommodates a battery 14 via an O-ring 13 made of a rubber material or the like, and the battery 14 is held by a battery cover 15. The communication means including electronic components such as the transponder 10, the circuit board 11, and the battery 14 is covered by fixing the lower cover 16 to the lower portion of the lower case 3 with a hook coupling portion.

  As shown in FIGS. 1 and 2, the mechanical key 7 is held and fixed to the rotor member 18 via a pin 17. The rotor member 18 is provided to be rotatable about a long cylindrical release button 20 that is fitted to a mounting boss 3 b erected on the lower case 3 via a coil spring 19. The material of the rotor member 18 and the release button 20 is made of a metal material such as zinc die casting, for example.

  As shown in FIG. 1, an inner case 22 is fastened and fixed to the upper surface of the rotor member 18 by a screw 23 via a torsion spring 21. The material of the inner case 22 is made of a resin material such as ABS or PC.

  As shown in FIG. 1, the distal end portion of the release button 20 is inserted into a circular through-hole 2 c formed through the upper surface of the upper case 2 through the rotor member 18, the torsion spring 21, and the inner case 22. Protruding. A circular decorative cap 24 made of, for example, a resin material is fitted on the lower surface of the lower case 3 corresponding to the mounting boss 3b.

  As shown in FIG. 1, the torsion spring 21 applies an urging force to the rotor member 18 when the mechanical key 7 is rotated from the inside of the lower case 3 to the outside to be ejected. These spring ends are locked to the rotor member 18 and the inner case 22, respectively. By depressing the release button 20, the locked state between the rotor member 18 and the release button 20 is released, and the mechanical key 7 is moved between the upper and lower cases 2, 3 while rotating the rotor member 18 by the urging force of the torsion spring 21. It is configured to protrude outward from the component housing space 6a.

(Switch button retaining structure)
The main basic configuration of the portable device 1 configured as described above is a structure for preventing the switch button 5 from coming off from the upper case 2. Therefore, the portable device 1 configured as described above is not different from the conventional one in the basic configuration. Therefore, it is needless to say that the overall configuration of the portable device 1 is not limited to the illustrated example.

  One of the main structures of the portable device 1 is not the switch button 5 but the switch button 5 when the decorative member 30 is assembled to a part of the inner wall surface of the upper case 2 and a part of the rear surface of the decorative member 30. There is a retaining structure that makes it possible to prevent the slipping out. In the illustrated example, the decorative member 30 is effectively used as a removal preventing member that prevents the switch button 5 from coming off from the upper case 2. For this reason, the portable device 1 according to the illustrated example has the main configuration of the upper case 2, the switch button 5, and the decorative member 30.

  As shown in FIGS. 1 to 3, the switch button 5 has a pair of switch mounting pieces 5 b and 5 b (hereinafter referred to as mounting pieces 5 b) horizontally with a step from the edge of the connection side with the upper case 2. Protrusively formed. On the other hand, on the back surface of the decorative member 30, a pair of plate-shaped guide pieces 31 and 31 that serve as guide portions are provided protruding at predetermined intervals in the longitudinal direction. The guide piece 31 is formed with an engagement hole 31 a that is attached to and engaged with the upper case 2.

  As shown in FIG. 5, the guide piece 31 of the decorative member 30 serves as a sliding surface for elastically deforming the elastic engagement piece 2d formed in the upper case 2, and the engagement hole 31a of the guide piece 31 is formed in the upper case. It becomes an engagement step part which elastically attaches and engages the 2 elastic engagement pieces 2d.

  On the other hand, as shown in FIGS. 1 to 3, a locking hole 2 e that opens in a wall surface that forms the switch housing space 6 b and a switch housing space 6 b are formed in each of the switch connection side ends of the upper case 2. An accommodation hole 2f that opens to the bottom surface is perforated. One locking hole 2e serves as a locking receiving portion for inserting and locking one mounting piece 5b of the switch button 5. The other accommodation hole 2 f serves as an accommodation receiving portion for accommodating the other mounting piece 5 b of the switch button 5.

  As shown in FIGS. 1 to 3, two rectangular holes 2 h and 2 h are perforated on the support surface 2 g for supporting the decorative member of the upper case 2. The square hole 2h serves as an insertion receiving portion for inserting a guide piece 31 serving as a guide portion for guiding the decorative member 30, and is disposed at a portion corresponding to the partition wall 2b of the upper case 2. Inside this square hole 2h, a plate-like elastic engagement piece 2d is formed so as to protrude downward. This elastic engagement piece 2d becomes an engagement portion that elastically attaches and engages the guide piece 31 of the decorative member 30, and is attached and fixed by engaging with the engagement hole 31a of the guide piece 31 in a snap-fit state. The

  To attach the switch button 5 according to this embodiment, as shown in FIG. 4A, first, one attachment piece 5b of the switch button 5 is inserted into the locking hole 2e of the upper case 2. Hook and lock. Subsequently, as shown in FIG. 4B, the other attachment piece 5 b of the switch button 5 is accommodated in the accommodation hole 2 f of the upper case 2.

  Next, as shown in FIG. 4C, the decorative member 30 is accommodated in the support surface 2 g of the upper case 2. At this time, as shown in FIG. 5A, the guide piece 31 of the decorative member 30 is inserted into the square hole 2 h of the upper case 2. The elastic engagement piece 2d formed in the square hole 2h is elastically deformed toward the outside intersecting with the insertion direction of the decoration member 30 by the tip of the guide piece 31 of the decoration member 30. The tip of the guide piece 31 is guided into the square hole 2h against the elasticity of the elastic engagement piece 2d of the upper case 2.

  Thereby, the front-end | tip of the elastic engagement piece 2d of the upper case 2 passes the engagement hole 31a of the guide piece 31 in the decoration member 30, as shown in FIG.5 (b). Thereafter, the elastic engagement piece 2d is elastically restored in the direction intersecting the insertion direction of the decorative member 30, and the tip of the elastic engagement piece 2d is elastically applied to the inner peripheral surface of the engagement hole 31a of the guide piece 31. Install and engage. The other mounting piece 5b of the switch button 5 is pressed and engaged with the back surface of the decorative member 30. The switch button 5 is held in the switch housing space 6b of the upper case 2 so that it can be pressed.

  According to the above operation, after the switch button 5 is accommodated in the switch accommodating space 6b of the upper case 2, the decorative member 30 is attached and fixed in the upper case 2 in a snap-fit state when the decorative member 30 is assembled. . In the locked state of the decorative member 30 and the switch button 5, the decorative member 30 acts to prevent stress applied to the switch button 5 and to prevent the switch button 5 from coming off.

(Effect of embodiment)
According to the retaining structure of the switch button 5 configured as described above, the following effects can be obtained in addition to the above effects.

  The switch button 5 retaining structure according to the illustrated example is such that one attachment piece 5b of the switch button 5 is hooked and locked in the locking hole 2e of the upper case 2, and the decorative member 30 is snap-fitted into the upper case 2. Is attached to the back surface of the decorative member 30 so that the other mounting piece 5b of the switch button 5 is pressed. For this reason, this switch button retaining structure is excellent in strength and shape retention, and it is unnecessary to use a conventional structure that requires a claw or the like to be formed on the free end of the leg piece erected from the back surface of the switch button. To do.

  In addition, since the pushing force does not act on the switch button 5 when the decorative member 30 is assembled, a reinforcing portion that provides the length and thickness of the base end of the leg piece and the locking claw in the conventional switch button is unnecessary. It becomes possible.

  The switch button 5 can be effectively prevented from coming off by the decorative member 30 assembled after the switch button 5 is mounted in the upper case 2. Therefore, it is possible to effectively obtain the mounting structure of the switch button 5 having a simple structure capable of ensuring the required mounting strength without being restricted by the shape and structure of the switch button 5 and the upper case 2.

[Modification]
As described above, the typical configuration example of the switch button mounting structure according to the present invention has been described with reference to the embodiment and the illustrated example. However, the embodiment and the illustrated example limit the invention according to the claims. It is not a thing. Various configurations are possible within the scope of the technical idea of the present invention, and the following modifications are also possible.

  In the said embodiment and the example of illustration, although illustrated as a switch button attachment structure installed in the portable remote control of the keyless entry transmitter for motor vehicles, it is not limited to this. The switch button mounting structure according to the present invention can be applied to a push button type switch knob that activates the switch button 5 by a pressing operation. For example, various in-vehicle devices such as audio and heaters, home appliances used in houses, etc. It can be effectively used for a case of a device or an electronic device such as a computer or OA device.

  In the above-described embodiment and the illustrated example, the mounting structure of the three switch buttons 5 is illustrated, but is not particularly limited. For example, the number and arrangement of the switch buttons 5 according to the symmetrical object or purpose of use. What is necessary is just to select a position, arrangement | positioning shape, etc. suitably, and the initial objective of this invention can be achieved.

  In the above embodiment and the illustrated example, the upper case 2 is provided with the elastic engagement piece 2d and the decorative member 30 is provided with the guide piece 31 as an example of the switch button mounting structure. Further, the guide piece 31 may be provided, and the decorative engagement member 2 may be provided with the elastic engagement piece 2d.

  Any structure that can elastically deform the guide piece 31 and / or the elastic engagement piece 2d may be used, and the structure of the engagement step portion that is the engagement hole 31a of the guide piece 31 is particularly limited. Is not to be done. As this engagement step portion, for example, various structures having step portions such as a concave portion and a convex portion can be used.

  In the above-described embodiment and the illustrated example, the configuration example in which the decoration member 30 is mounted on one side of the switch button 5 is illustrated. However, the present invention is not limited to this, and for example, the decoration member 30 is provided on both sides of the switch button 5. The structure to mount may be sufficient. On the other hand, the switch button 5 having the pair of mounting pieces 5b protruding in the direction intersecting the pressing operation direction is illustrated, but the present invention is not limited to this. For example, the switch button 5 is entirely connected to the upper case connection side edge. You may have a flange-shaped attachment piece in the periphery. In this case, the locking hole 2e of the upper case 2 may be eliminated, and the support surface 2g for supporting the decorative member of the upper case 2 is formed on both sides of the upper case connecting side edge of the switch button 5 or on the entire circumference. Will be.

  Therefore, even if the number of the mounting pieces 5b of the switch button 5 is arranged, the arrangement position, the arrangement shape, or the like, it can be appropriately selected. Even if the elastic engagement piece 2d, the locking hole 2e, the accommodation hole 2f, the square hole 2h, and the support surface 2g of the upper case 2 and the guide piece 31 and the engagement hole 31a of the decorative member 30 are present, the switch button As a mounting structure, a form, an installation position, the number of installation, etc. are not specifically limited, Of course, it can select suitably.

  As is clear from the above description, not all the combinations of the features described in the above-described embodiments, modifications, and illustrated examples are necessarily essential to the means for solving the problems of the present invention. It should be noted.

DESCRIPTION OF SYMBOLS 1 ... Portable machine, 2 ... Upper case, 2a ... Hook, 2b ... Partition, 2c ... Through-hole, 2d ... Elastic engagement piece, 2e ... Locking hole, 2f ... Housing hole, 2g ... Support surface, 2h ... Square hole 3 ... lower case, 3a ... hook hole, 3b ... mounting boss, 4 ... gripping member, 5 ... switch button, 5a ... operating projection, 5b ... mounting piece, 6a ... component housing space, 6b ... switch housing space, 7 ... mechanical key, 8 ... cushion, 9 ... tact switch, 10 ... transponder, 11 ... circuit board, 12 ... packing, 13 ... O-ring, 14 ... battery, 15 ... battery cover, 16 ... lower cover, 17 ... pin, 18 DESCRIPTION OF SYMBOLS ... Rotor member, 19 ... Coil spring, 20 ... Release button, 21 ... Torsion spring, 22 ... Inner case, 23 ... Screw, 24 ... Decoration cap, 30 ... Decoration member, 31 ... Guide piece, 31a ... Engagement hole

Claims (4)

The first and second mounting pieces projecting in the direction intersecting the pressing operation direction on both sides of the switch button;
On one side of the case holding the switch button, there is a latch receiving portion for inserting and locking the first mounting piece,
On the other side of the case, there is an accommodation receiving portion in which the second attachment piece is accommodated, and an insertion receiving portion in which a removal preventing member for preventing the second attachment piece from being removed is inserted,
One of the insertion receiving portion and the removal preventing member has a guide portion for inserting and guiding the removal preventing member, and the guide portion is elastically attached and engaged with the other of the insertion receiving portion and the removal preventing member. Having an engaging portion to
The guide portion and the engagement portion are elastically attached and engaged in a direction intersecting the insertion direction of the removal prevention member, and the second attachment piece is pressed and engaged with the back surface of the removal prevention member. A switch button mounting structure characterized by The accommodation receiving portion and the insertion receiving portion are formed of a hole formed in a support surface that supports the removal preventing member on the upper surface of the case,
The guide portion is formed to protrude from the back surface of the removal preventing member, and includes a guide piece that guides the hole portion of the insertion receiving portion.
The engaging portion, the formed within the hole of the insertion receptacle, according to claim 1, characterized in that it consists of elastic engagement pieces to elastically engage the engagement hole formed in the guide piece Switch button mounting structure. The locking receiving portion, the switch button mounting structure according to claim 1, characterized by comprising a hole formed in the switch connecting-side end portion of the case. The fall-off preventing member, the switch button mounting structure according to claim 1 or 2 characterized in that the decorative member which decorate the casing.

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