JP5473142B2 - Pushbutton switch with narrow frame display - Google Patents

Description

  The present invention relates to a pushbutton switch with a narrow frame display device.

  Conventional pushbutton switches with a display device include those having a liquid crystal display device in the operation unit (Patent Document 1 below) and those having an organic light emitting display device (Patent Document 2 below). A display device capable of changing the display is provided inside.

JP 2009-048904 A JP 2009-104939 A

  However, in the above-described conventional pushbutton switch with a display device, since the frame provided around the displayable area of the display device is wide, the area of the display portion relative to the area of the button upper surface is small. In addition, when the switches are arranged side by side, the interval between the display portions is widened by the frame, so that it is difficult to display a plurality of switches in a row and display them as one image.

  Further, in order to insulate the display device from the operator, a button that covers the display device is formed of resin. However, if the side surface of the button is made thin in order to narrow the frame, the strength cannot be maintained. Therefore, in order to maintain strength, it is common to change the resin to a hard material such as metal, but it is necessary to insulate the contact surface with the display device, such as painting or insulation. Although sticking of a film etc. can be considered, there were problems such as coating unevenness, paint peeling at the time of assembly, and film peeling.

  In view of the above situation, an object of the present invention is to provide a pushbutton switch with a narrow frame display device that has a large display area with respect to the area of the upper surface of the button and can improve visibility.

In order to achieve the above object, the present invention provides
[1] A plunger (4) is disposed in a housing (5) provided with a contact mechanism (7) and having an opening at the top, and a display device (2) is disposed above the plunger (4). The button (1) is fitted to the plunger (4) so as to cover the display device (2), and the vertical movement of the plunger (4) is guided in the housing (5), and the contact mechanism (7 In the pushbutton switch with a display device that opens and closes the electric circuit in conjunction with the button and can be displayed on the display unit (1e) on the upper surface of the button (1), the display device (2) is arranged around the displayable region (2b). A narrow frame display device in which the width of the four side frames (2c) provided in the frame is 0.7 mm or less, and the button (1) is a metal part so as to surround the side surface of the rectangular resin part (1a) without any breaks. (1b) is formed and the resin (1a) is formed integrally, and the metal part (1b) is formed with a peeling prevention hole (1c) to be assembled with the resin part (1a) having a taper shape spreading outward, and the metal part (1b) and the resin part (1a) are integrated, the thickness of the side surface of the button (1) is 0.3 mm or less, and the frame around the display part (1e) on the upper surface of the button (1) ( 1f) is 1 mm or less.
[2] In the pushbutton switch with a narrow frame display device according to [1], the upper portion is fitted to the plunger (4), and the lower portion is a flange portion (5b) provided around the upper surface of the housing (5). A packing (19) to be fitted is provided.

According to the present invention, the following effects can be achieved.
(1) A narrow frame display device in which the width of the four frames provided around the displayable area is 0.7 mm or less, and the side surface of the button formed integrally with the metal portion and the resin portion. Since the thickness is set to 0.3 mm or less and the frame on the button upper surface is set to 1 mm or less, the area of the display unit with respect to the area of the button upper surface can be increased, and the visibility can be improved.
(2) A narrow frame display device in which the width of the four frames provided around the displayable area is 0.7 mm or less, and the side surface of the button in which the metal portion and the resin portion are integrally formed. Since the thickness is 0.3 mm or less and the frame on the top surface of the button is 1 mm or less, when a plurality of switches are arranged adjacent to each other, the interval between the display portions of each switch can be reduced. One image can be formed by combining the display units.
(3) Since the metal portion is formed so as to surround the side surface of the rectangular resin portion without any breaks and is integrally formed with the resin portion, the insulation and withstand voltage are ensured, and the external force on the button is prevented. Strength can be secured.
(4) Since the metal portion is formed so as to surround the side surface of the rectangular resin portion without any breaks and is formed integrally with the resin portion, it is possible to prevent water from entering the button.
(5) Since the packing is provided between the plunger and the housing, it is possible to prevent water from entering the housing and the panel when the switch is attached to the panel.
(6) Since the packing is provided between the plunger and the housing, the whole plunger is pushed upward uniformly, and the button is held horizontally without tilting. Can contribute to smooth operation.

It is a perspective view of a pushbutton switch with a narrow frame display device representing the first embodiment of the present invention. It is a disassembled perspective view of the pushbutton switch with a narrow frame display apparatus showing 1st Example of this invention. It is a front view of the pushbutton switch with a narrow frame display device showing the first embodiment of the present invention. It is a top view of the pushbutton switch with a narrow frame display apparatus showing 1st Example of this invention. It is AA sectional drawing of FIG. 4 showing 1st Example of this invention. It is a perspective view of the pushbutton switch with a narrow frame display device showing the second embodiment of the present invention. It is a disassembled perspective view of the pushbutton switch with a narrow frame display apparatus showing 2nd Example of this invention. It is a front view of the pushbutton switch with a narrow frame display device showing the second embodiment of the present invention. It is a top view of the pushbutton switch with a narrow frame display apparatus showing 2nd Example of this invention. It is BB sectional drawing of FIG. 9 showing 2nd Example of this invention.

  In the pushbutton switch with a narrow frame display device of the present invention, a plunger is disposed in a housing having a contact mechanism portion and having an upper opening, and the display device is disposed above the plunger and covers the display device. And a button that engages with the plunger, guides the vertical movement of the plunger in the housing, opens and closes the electric circuit in conjunction with the contact mechanism, and can be displayed on the display unit on the upper surface of the button In the attached push button switch, the display device is a narrow frame display device in which the width of the four frames provided around the displayable area is 0.7 mm or less, and the button has a cut in the side surface of the rectangular resin portion. A metal part is formed so as to surround the resin part and is integrally formed with the resin part, and the metal part is combined with the resin part having a taper shape spreading outward. A peeling prevention hole is formed, the metal part and the resin part are integrated, the thickness of the side surface of the button is 0.3 mm or less, and the frame around the display part on the button upper surface is 1 mm or less. To do.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a pushbutton switch with a narrow frame display device representing a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the pushbutton switch with a narrow frame display device representing a first embodiment of the present invention. 3 is a front view of a pushbutton switch with a narrow frame display device representing the first embodiment of the present invention, FIG. 4 is a plan view of the pushbutton switch with a narrow frame display device representing the first embodiment of the present invention, and FIG. It is AA sectional drawing of FIG. 4 showing 1st Example of this invention.

  In these drawings, 1 is a button, 2 is a narrow frame display device, 3 is packing A, 4 is a plunger, 5 is a housing, 6 is a connector disposed in the housing 5, and 7 is disposed in the housing 5. A switch element 8 is a taper spring disposed on the upper surface of the switch element 7. The button 1 is formed by integrally forming a rectangular resin portion 1a made of transparent resin and a metal portion 1b surrounding the side surface of the resin portion 1a without any break, and the metal portion 1b has a taper shape spreading outward. A peeling prevention hole 1c to be assembled with the resin portion 1a and a hanging portion 1d are formed. In the narrow frame display device 2, a displayable area 2b is formed on the upper surface of the substrate 2a, a frame 2c is formed around the displayable area 2b, and a flexible printed circuit board 2d is disposed on the lower surface. The plunger 4 has a substantially rectangular tube shape having a bottom surface portion, a hanging piece 4a slidably engaged with the housing 5 on two opposing side surfaces, a step portion 4b on the upper outer peripheral portion, and a guide portion on the inner side surface. 4c, a pressing projection 4d for operating the switch element 7 on the back surface, and a sliding projection 4e for guiding the vertical movement at the four corners. The housing 5 has a substantially square cylindrical shape having a bottom surface portion, an engaging groove 5a that engages with the hanging piece 4a of the plunger 4 on two opposing side surfaces, a leaf spring 5c on the other opposing side surface, and an opening portion. A flange 5b is formed on the periphery. Here, the thickness of the side surface of the button 1 formed by the resin portion 1a and the metal portion 1b is preferably 0.3 mm or less, and the width of the frame 2c of the narrow frame display device 2 is 0.7 mm or less. It is preferable. By setting the thickness of the side surface of the button 1 to 0.3 mm or less and the width of the frame 2 c to 0.7 mm or less, the width of the frame 1 f around the display portion 1 e on the upper surface of the button 1 becomes 1 mm or less. The area of the display unit 1e can be increased.

  The narrow frame display device 2 is disposed on the upper surface of the plunger 4 via the packing A3, and the flexible printed circuit board 2d is guided to the guide portion 4c and led out below the plunger 4. The button 1 is covered with the plunger 4 so as to cover the narrow frame display device 2, and the hanging portion 1d is bent toward the plunger 4 and fitted with the step portion 4b. A connector 6 and a switch element 7 are disposed on the housing 5, terminals 6 a and 7 a protrude downward from the housing 5, and a taper spring 8 that biases the plunger 4 upward is disposed on the upper surface of the switch element 7. Then, the flexible printed circuit board 2d is connected to the connector 6, and the hanging piece 4a of the plunger 4 is slidably engaged with the engaging groove 5a of the housing 5, whereby the push button switch with the narrow frame display device is completed. .

  In the pushbutton switch with a narrow frame display device of the present invention configured as described above, the plunger 4 moves up and down in accordance with the operation of the button 1, and the pressing projection 4d operates the operating portion 7b to switch the switch element 7. Turn on / off to open and close the electric circuit. At this time, the display of the display unit 1e can be changed according to the operation of the button 1.

  As described above, the pushbutton switch with a narrow frame display device shown in the present embodiment can increase the visibility of the display portion 1e with respect to the area of the upper surface of the button 1, and thus can improve visibility. Have.

  In this embodiment, the button and the plunger are fitted to the step portion of the plunger by bending the hanging portion of the button. However, a concave and convex portion may be formed by forming a concave portion and a convex portion on the button and the plunger. The height of the plunger is formed in consideration of the load on the flexible printed circuit board of the narrow frame display device. However, the height of the plunger may be reduced depending on the direction in which the flexible printed circuit board is derived from the circuit board. Although the contact mechanism portion is a tact switch, it may be another switch element that can be operated as the plunger moves up and down, and various methods are conceivable.

  6 is a perspective view of a pushbutton switch with a narrow frame display device representing a second embodiment of the present invention, FIG. 7 is an exploded perspective view of the pushbutton switch with a narrow frame display device representing a second embodiment of the present invention, FIG. 8 is a front view of a pushbutton switch with a narrow frame display device representing the second embodiment of the present invention, FIG. 9 is a plan view of the pushbutton switch with a narrow frame display device representing the second embodiment of the present invention, and FIG. It is BB sectional drawing of FIG. 9 showing 2nd Example of this invention.

  In these drawings, 11 is a button, 12 is a narrow frame display device, 13 is a packing A, 14 is a plunger, 15 is a housing, 16 is a connector disposed in the housing 15, and 17 is disposed in the housing 15. 18 is a taper spring disposed on the upper surface of the switch element 17, and 19 is a packing B disposed between the plunger 14 and the housing 15. The button 11 is formed by integrally forming a rectangular resin portion 11a made of a transparent resin and a metal portion 11b that surrounds the side surface of the resin portion 11a. The metal portion 11b has a tapered shape that extends outward. A peeling prevention hole 11c to be assembled with the resin portion 11a and a hanging portion 11d are formed. In the narrow frame display device 12, a displayable region 12b is formed on the upper surface of the substrate 12a, a frame 12c is formed around the displayable region 12b, and a flexible printed circuit board 12d is disposed on the lower surface. The plunger 14 has a substantially rectangular tube shape having a bottom surface portion, a hanging piece 14a slidably engaged with the housing 15 on two opposing side surfaces, a step portion 14b on the upper outer peripheral portion, and a guide portion on the inner side surface. 14c, a pressing projection 14d for operating the switch element 17 on the back surface, a sliding projection 14e for guiding the vertical movement at the four corners, and a fitting groove 14f are formed below the stepped portion 14b. The housing 15 has a substantially square cylindrical shape having a bottom surface, and has an engagement groove 15a that engages with the hanging piece 14a of the plunger 14 on two opposite side surfaces, a leaf spring 15c on the other opposite side surface, and an opening portion. A flange 15b is formed at the periphery. The packing B19 has a substantially square cylindrical shape, and a peripheral edge portion 19a that fits with the fitting groove 14f of the plunger 14 is formed on the upper side, and a fitting portion 19b that fits with the flange portion 15b of the housing 15 on the lower side. Here, the thickness of the side surface of the button 11 formed by the resin portion 11a and the metal portion 11b is preferably 0.3 mm or less, and the width of the frame 12c of the narrow frame display device 12 is 0.7 mm or less. It is preferable. By setting the thickness of the side surface of the button 11 to 0.3 mm or less and the width of the frame 12 c to 0.7 mm or less, the width of the frame 11 f around the display portion 11 e on the upper surface of the button 11 becomes 1 mm or less. The area of the display portion 11e can be increased.

  The narrow frame display device 12 is disposed on the upper surface of the plunger 14 via the packing A13, and the flexible printed circuit board 12d is guided to the guide portion 14c and led out below the plunger 14. The button 11 is covered with the plunger 14 so as to cover the narrow frame display device 12, the hanging portion 11d is bent toward the plunger 14 and fitted into the stepped portion 14b, and the peripheral portion 19a of the packing B19 is fitted into the fitting groove 14f. Combined. A connector 16 and a switch element 17 are disposed on the housing 15, terminals 16 a and 17 a project downward from the housing 15, and a taper spring 18 that biases the plunger 14 upward is disposed on the upper surface of the switch element 17. Then, the flexible printed circuit board 12d is connected to the connector 16, the hanging piece 14a of the plunger 14 is slidably engaged with the engaging groove 15a of the housing 15, and the fitting portion 19b of the packing B19 is the flange portion 15b of the housing 15. To complete a pushbutton switch with a narrow frame display device.

  In the pushbutton switch with a narrow frame display device of the present invention configured as described above, the plunger 14 moves up and down in accordance with the operation of the button 11, and the switch element 17 is operated by the pressing projection 14d operating the operation portion 17b. Turn on / off to open and close the electric circuit. At this time, the display of the display unit 11e can be changed according to the operation of the button 11.

  As described above, the push button switch with a narrow frame display device shown in the present embodiment can increase the visibility of the display portion 11e with respect to the area of the upper surface of the button 11, and thus can improve visibility. Have. Further, since the packing B19 is provided between the plunger 14 and the housing 15, it has a feature that water can be prevented from entering the panel when the switch is attached to the panel. Further, by pushing the entire plunger 14 upward uniformly by the packing B19 and holding the button 11 horizontally, it contributes to flushness when a plurality of switches are continuously arranged, and supports a smooth operation. It has the feature that it can be.

  In this embodiment, the button and the plunger are fitted to the step portion of the plunger by bending the hanging portion of the button. However, a concave and convex portion may be formed by forming a concave portion and a convex portion on the button and the plunger. The height of the plunger is formed in consideration of the load on the flexible printed circuit board of the narrow frame display device. Although the contact mechanism portion is a tact switch, it may be another switch element that can be operated as the plunger moves up and down, and various methods are conceivable.

  In addition, this invention is not limited to said Example, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

  The push button switch with a narrow frame display device of the present invention can be used as a push button switch with a narrow frame display device that has a large display area with respect to the area of the upper surface of the button and can improve visibility.

1,11 Button 1a, 11a Resin part 1b, 11b Metal part 1c, 11c Peeling prevention hole 1d, 11d Hanging part 1e, 11e Display part 1f, 11f Frame 2, 12 Narrow frame display device 2a, 12a Substrate 2b, 12b Display Possible area 2c, 12c Frame 2d, 12d Flexible printed circuit board 3, 13 Packing A
4,14 Plunger 4a, 14a Drooping piece 4b, 14b Stepped portion 4c, 14c Guide portion 4d, 14d Pressing projection 4e, 14e Sliding projection 14f Fitting groove 5, 15 Housing 5a, 15a Engaging groove 5b, 15b Hook 5c , 15c Leaf spring 6, 16 Connector 6a, 16a, 7a, 17a Terminal 7, 17 Switch element 7a, 17a Operation part 8, 18 Taper spring 19 Packing B
19a Peripheral part 19b Fitting part

Claims (2)

  A plunger is provided in a housing having a contact mechanism portion and having an opening at the top, a display device is provided above the plunger, and the plunger is fitted to the plunger so as to cover the display device. In the pushbutton switch with a display device capable of guiding the vertical movement of the inside of the housing to open and close the electric circuit in conjunction with the contact mechanism portion and to be displayed on the display portion on the upper surface of the button, the display device can be displayed. A narrow frame display device in which the width of the four frames provided around the frame is 0.7 mm or less, and the button has a metal portion formed so as to surround the side surface of the rectangular resin portion without any breaks, and the resin. The metal part is formed with a peeling prevention hole to be assembled with the taper-shaped resin part that spreads outward, and the metal part and the front part are formed. A push button switch with a narrow frame display device, wherein a resin portion is integrated, a thickness of a side surface of the button is 0.3 mm or less, and a frame around a display portion on the upper surface of the button is 1 mm or less .   2. The pushbutton switch with a narrow frame display device according to claim 1, wherein an upper portion is fitted with the plunger, and a lower portion is fitted with a flange provided around the upper surface of the housing. A push button switch with a narrow frame display.

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