JPH065069U - Push button switch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a push button switch capable of improving durability and sliding performance while making the push button compact. [Structure] A rib 13 is extended inward from an insertion hole 12a opened on the surface of the escutcheon 12, and the push button 1
5, a guide plate 14 extending behind is inserted into the rib 13 slidably from the insertion hole 12a, and the guide plate 14 is formed with a long groove 22 extending inward and outward. The inner and outer edges 2 of the long groove 22
Guide protrusions 20 that come into contact with either one of 2a and 22b are provided on the ribs 13 at predetermined intervals inside the long groove 22,
Projections 23, 23 ... Slidingly contacting the left and right wall portions 20c, 20d of the guide projection 20 are provided at the left and right edge portions 22c, 22d of the long groove 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to, for example, a push button switch which is provided in an operation unit of various electronic devices and controls a drive system inside the electronic device main body.

[0002]

[Prior art]

 Conventionally, as shown in FIGS. 8 to 9, as such a push button switch 1, an escalation 2 having a rib 3 extending inward from a lower edge portion of an insertion hole 2a opened on the surface is provided. A guide plate 4 inserted into the insertion hole 2a and slidable inward and outward of the escutcheon 2, a push button 5 located outside the escutcheon 2 and having the guide plate 4 behind it, and an inner side of the guide plate 4. Some include a substrate 7 to which a button switch 6 that contacts the end 4a is fixed. Further, the escutcheon 2 has a pair of cylindrical portions 2b, 2b which are protruded inward at predetermined intervals on the left and right sides of the insertion hole 2a, and are opened at predetermined intervals below the insertion hole 2a. The holes 2c of the light guide 8 thus formed are respectively formed.

In the vicinity of the inner end of the rib 3, convex portions 3 a, 3 a are located on the left and right sides of the rib 3 and project upward.

In the vicinity of the inner end of the guide plate 4, guide holes 4b, 4b which are located on the left and right sides thereof and have a rectangular shape are formed. The convex portions 3a, 3a are loosely inserted into the guide holes 4b, 4b, and the extending lengths in the inner and outer directions thereof are set so that the sliding range of the guide plate 4 is restricted.

The push button 5 is provided with a pair of pins 9 and 9 projecting toward the inside of the escutcheon 2. The pins 9 and 9 are slidably inserted in the tubular portions 2b and 2b. When the push button 5 is pressed or released, the pins 9 and 9 guide the sliding displacement of the guide plate 4 with the rib 3 due to the pressing force or the biasing force of the biasing means (not shown). At the same time, the vertical movement and the catching of the guide plate 4 are prevented.

[0006]

[Problems to be solved by the device]

 By the way, in the push button switch 1 configured as described above, if the pins 9 and 9 are thin, not only there is a risk of blurring or catching, but there is a problem that the pins 9 and 9 are broken. On the contrary, if the pins 9 and 9 are thick, the contact with the cylindrical portions 2b and 2b is a surface, and the sliding noise is generated and the resistance of the push button 5 is too large. There has been a problem that extra force is required for pressing.

On the other hand, since the pins 9 and 9 are provided on the left and right sides of the push button 5, it is difficult to miniaturize the push button 5, and the escutcheon 2 becomes large in order to provide a plurality of push buttons 5 adjacent to each other. There was also the problem of doing.

In view of the above situation, the present invention is a push button switch that can improve the durability and sliding performance without impairing the support performance of the guide plate, while making the push button compact. It is intended to provide

[0009]

[Means for Solving the Problems]

 In order to achieve the object, the device according to claim 1 has an escutcheon having an inwardly extending rib extending inwardly in an insertion hole formed in a surface, and an escutcheon inserted into the insertion hole and having the escutcheon. A guide plate that can slide inward and outward, a push button that is located outside the escutcheon and has the guide plate behind it, a long groove that extends inward and outward, and is formed in the guide plate, and the long groove. A guide protrusion having an inner and outer wall portion that is provided on the inner side of the rib so as to project from the rib and contacts one of the inner and outer edge portions of the long groove as the guide plate slides; The gist of the present invention is to provide a protrusion that is provided on either one of the left and right edge portions and the left and right wall portions of the guide projection and that is in sliding contact with the other of the left and right edge portions and the both side wall portions.

Further, the invention according to claim 2 is provided with a sliding protrusion that is provided so as to project from one of the facing surfaces of the guide plate and the rib and is in sliding contact with the other surface. Is.

[0011]

[Action]

 In the structure according to claim 1, the insertion hole is opened on the surface of the escutcheon, the rib extends inward from the insertion hole, and the insertion hole is opened and the insertion hole is opened. A rib extends inward from the hole, a guide plate extends behind the push button located outside the escutcheon, and a long groove extending inward and outward is formed on the guide plate. Guide protrusions that come into contact with one of the inner and outer edges of the long groove as the guide plate slides are provided on the rib inside the long groove with a predetermined interval, and the left and right edges of the long groove and the left and right edges of the guide protrusions. Protrusions are provided on either one of the wall portions and slidably contact the left and right edge portions and the other of the side wall portions.

As described above, the guide plate slides inward and outward of the escutcheon without causing left and right blurring due to the long groove and the guide protrusion. At this time, since the long groove and the guide projection are in point contact with each other by the projection, the sliding resistance is small and smooth sliding can be realized, and the generation of sliding noise is also reduced.

Further, in the structure according to the second aspect of the present invention, the sliding protrusion is provided on one of the facing surfaces of the guide plate and the rib, and the sliding projection is in sliding contact with the other surface, so that the friction is generated. Resistance can be reduced and smoother sliding can be realized.

[0014]

【Example】

 Next, an embodiment of the push button switch of the present invention will be described with reference to FIGS.

In FIGS. 1 and 2, the push button switch 11 includes an escutcheon 12 having a rib 13 extending inward from a lower edge portion of an insertion hole 12a opened on the surface, and an escutcheon 12 in the insertion hole 12a. A guide plate 14 that is inserted and slidable inward and outward of the escutcheon 12, a push button 15 that is located outside the escutcheon 12 and that has a guide plate 14 behind it, and abuts on the inner end 14a of the guide plate 14. A board 17 to which the button switch 16 is fixed.

The escutcheon 12 is formed with a protruding hole 12b of the light guide 18 which is opened below the insertion hole 12a at a predetermined interval.

The rib 13 has wall surfaces 13a, 13b, 13c, 13d on the top, bottom, left and right. Further, slits 19 and 19 which are opened at the inner end portions are formed on the left and right sides of the lower wall surface 13a. Further, at the center of the lower wall portion 13a, a guide protrusion 20 extending over the inner and outer ends thereof is provided so as to project upward. The slits 19 and 19 are provided to bend the inner end of the lower wall portion 13a and facilitate the insertion of the guide plate 14 when the guide plate 14 is inserted through the insertion hole 12a. is there.

As shown in FIG. 3, the lower surface 14 a and the upper surface 14 b located at the left and right ends of the guide plate 14 are linear contact type sliding rails having arcuate cross-sections as vertically protruding projections. 21, 21 are integrally formed. A long groove 22 is formed at the center of the guide plate 14 so as to extend inward and outward and into which the guide protrusion 20 is inserted.

The extension length of the long groove 22 is such that one of the inner and outer edge portions 22 a and 22 b of the long groove 22 and the inner and outer edge portions 20 a and 20 b of the guide protrusion 20 come into contact with each other as the guide plate 14 slides. By this contact, the sliding range of the guide plate 14 in the inner and outer directions is restricted. Further, a plurality of protrusions 23, 23 ... Having an arc shape capable of sliding contact with the left and right wall portions 20c, 20d of the guide protrusion 20 are provided on the left and right edge portions 22c, 22d of the long groove 22.

By the way, as shown in FIG. 4, for example, the shapes of the sliding rails 21 and 21 as the projections which also serve as the reinforcement of the guide plate 14, the lower surface 34a and the upper surface located at the left and right edge portions of the guide plate 34, as shown in FIG. 34b is a line contact type sliding rail 31 having a chevron-shaped cross section as a protrusion protruding vertically, or, as shown in FIGS. 5 (A) and 5 (B), The lower surface 44a and the upper surface 44b of the guide plate 44 are not limited to the above embodiments, such as a plurality of point contact type projections 41, 41 having a chevron-shaped cross-section protruding vertically. .

Similarly, the relationship between the guide projection 20, the long groove 22, and the projection 23 is, for example, as shown in FIG. 6, arc-shaped projections 33, 33 ... Which slidably contact the left and right edge portions 32c, 32d of the long groove 32. 7 projecting from the left and right wall portions 30c and 30d of the guide projection 30 or, as shown in FIG. 7, the mountain-shaped projections 43, 43 ... Slidingly contacting the left and right edge portions 42c and 42d of the long groove 42. The pair of guide protrusions 40, 40 protruding from the left and right wall portions 40c, 40d and the like are not limited to the above-described embodiment.

In the above-mentioned configuration, the displacement of the guide rail 14 linked to the displacement of the push button 15 inward and outward of the escutcheon 12 when the push button 15 is pressed is determined by the extension of the guide protrusion 20 and the long groove 22. Determined by the length of the project. The sliding resistance between the rib 13 and the guide rail 14 is reduced by the sliding rails 21 and 21 and the protrusion 23. Further, the horizontal deviation of the guide rail 14 when sliding is absorbed by the sliding contact of the projection 23 with the guide projection 20, and the vertical deviation of the guide rail 14 when sliding is the sliding rails 21 and 21. Is absorbed by the sliding contact with the rib 13.

[0023]

[Effect of device]

 As described above, in the push button switch of the present invention, the escutcheon having the rib extending inwardly in the insertion hole opened on the surface, and the escutcheon inserted into the insertion hole and the escutcheon. A guide plate that can slide inward and outward, a push button that is located outside the escutcheon and that has the guide plate behind it, a long groove that extends inward and outward and is formed in the guide plate, and the long groove. A guide protrusion having an inner and outer wall portion that is provided on the inner side of the rib so as to project from the rib, and contacts one of the inner and outer edge portions of the long groove as the guide plate slides; The push button can be made compact by having a protrusion protruding from either the left or right edge portion or the left or right wall portion of the guide projection and slidingly contacting the left or right edge portion or the other of the both side wall portions. Can Yet shall, it is possible to improve the durability and sliding performance.

[Brief description of drawings]

1A and 1B show a push-button switch of the present invention, FIG. 1A being a sectional view of a main part, and FIG. 1B being a sectional view taken along the line BB of FIG.

FIG. 2 is an exploded perspective view of the main part of the push button switch.

FIG. 3 is a cross-sectional view of a guide plate used in the present invention.

FIG. 4 is a sectional view showing a modified example of the guide plate.

FIG. 5 also shows a second modification of the guide plate,
(A) is sectional drawing which follows CC line | wire of (B), (B) is a top view.

FIG. 6 is a plan view of an essential part showing a modification of the guide protrusion, the long groove, and the protrusion of the present invention.

FIG. 7 is a plan view of an essential part showing a second modification of the guide protrusion, the long groove and the protrusion.

8A and 8B show a conventional push button switch, in which FIG. 8A is a sectional view of a main part, and FIG. 8B is a sectional view taken along the line AA of FIG.

FIG. 9 is likewise an exploded perspective view of a main part of the push button switch.

[Explanation of symbols]

 11 push button switch 12 escutcheon 12a insertion hole 13 rib 14 guide plate 15 push button 20 guide protrusion 20a inner wall portion 20b outer wall portion 20c left wall portion 20d right wall portion 21 sliding rail (sliding protrusion) 22 long groove 22a inner edge portion 22b outer edge portion 22c Left edge 22d Right edge 23 Projection

Claims (2)

[Scope of utility model registration request] 1. An escutcheon having a rib extending inwardly in an insertion hole opened on the surface, a guide plate inserted into the insertion hole and slidable inward and outward of the escutcheon, A push button that is located outside the escutcheon and has the guide plate behind it, a long groove that extends inward and outward and is formed in the guide plate, and a protruding portion that protrudes from the rib at a predetermined interval inside the long groove. A guide protrusion having inner and outer wall portions that come into contact with either one of the inner and outer edge portions of the long groove as the guide plate slides; 2. A push button switch, comprising a protrusion that is provided on one side and that is in sliding contact with the left and right edge portions and the other of the side wall portions. 2. The sliding projection, which is provided on either one of the surfaces of the guide plate and the rib facing each other and is in slidable contact with the other surface. Push button switch.