JPH052339U - Waterproof switch - Google Patents

Abstract

(57) [Summary] [Purpose] To improve waterproof performance. [Structure] The handle case 2 is mounted on the switch body 1. A holding cylinder 6 is integrally provided so as to project upward from the bottom plate 2a of the handle case 2. The upper part of the switching shaft 7 inserted in the holding cylinder 6 is connected to the handle 8 mounted in the handle case 2. The spherical portion 9 provided on the switching shaft 7 is rotatably held by the holding cylinder 6. Holding cylinder 6
A retaining piece 19 that covers the upper surface of the spherical portion 9 at the upper part of the
Is provided to form the holding portion 10. The O-ring 11 provided on the spherical portion 9 is pressed against the inner surface of the holding portion 10. The O-ring 11 is located slightly above the spherical core a of the spherical body portion 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a waterproof switch.

[0002]

[Prior art]

  Conventionally, as a switch having a structure in which an operation unit and a switch unit are separated, for example, as shown in FIG. There is one as shown in 1. This one projects from the bottom of the handle case 2. The shaft portion 8a of the handle 8 is inserted into the supported support plate 2b and is rotatably supported. Inside the switch body 1 through the opening 20 provided in the bottom plate 2a of the handle case 2. The switching shaft 7 protruding from the It is designed to be replaced with a handle case when mounting it on the wall surface or other mounting part 4. This is done by attaching the flange 3 of the base 2 to the panel 16 with the attaching screw 21. It has become so.

[0003]

[Problems to be solved by the device]

  However, in the conventional example as described above, the handle case 2 is made of metal sheet metal. Since it is made, packing is provided between the flange 3 of the handle case 2 and the panel 16. Even if you install it by sandwiching it between the mounting screw part and the sheet metal part, There is a problem that it penetrates into the inside of the cable 16 and adversely affects the switch. The handle where the switching shaft 7 is inserted for dust and water that enter the handle case 2. Leakage by penetrating into the switch body 1 through the opening 20 of the case 2 and the switch body 1. There was a problem of causing electricity. For this reason, use the mounting screws 21 As shown in FIG. 1, it can be attached to the opening provided in the attachment portion 4 The one shown in 2 is also provided. However, even in this one, Although it is possible to prevent water and dust from entering from the opening edge of the opening, The water and dust that enter the case 2 are stored in the opening 20 through which the switching shaft 7 is inserted. It will penetrate into the switch body 1 through the gap, and even this one is waterproof. There was a problem of low performance.

[0004]   For this reason, the applicant of the present invention has been shown to improve the waterproofness of the mounting portion of the switching shaft. I considered what is shown in 3. This is held in the holding part 10 of the holding cylinder 6. The O-ring 11 is provided on the outer surface of the spherical portion 9 of the switching shaft 7, The ring 11 is pressed against the inner surface of the holding portion 10 to ensure waterproofness. There is. However, in this one, the handle 8 as shown in FIG. When the tilt angle of the O is small, the O-ring 11 is pressed against the inner surface of the holding unit 10. Although the waterproof property is ensured, the tilt angle of the handle 8 as shown in FIG. Is large, the O-ring 11 is separated from the inner surface of the holding portion 10. As a result, there is a problem that a gap may be formed, resulting in deterioration of waterproofness.

[0005]   The present invention is intended to solve the above problems, and is a waterproof type with high waterproof performance. It is an attempt to provide an switch.

[0006]

[Means for Solving the Problems]

  In the present invention, in order to achieve the above object, a handle is provided on the upper part of the switch body 1. The case 2 is placed and is integrally held upward from the bottom plate 2a of the handle case 2 The body 6 is projectingly provided, and the upper portion of the switching shaft 7 inserted into the holding cylinder body 6 is attached to the handle case 2 Holds the spherical portion 9 connected to the handle 8 mounted inside and provided on the switching shaft 7. It is rotatably held by the tubular body 6, and the upper portion of the holding tubular body 6 covers the upper surface side of the spherical portion 9 The O-ring 1 provided on the spherical portion 9 is provided with the stopper holding piece 19 to form the holding portion 10. 1 is pressed against the inner surface of the holding portion 10, and the O-ring 11 is slightly above the spherical core a of the spherical body portion 9. It is located in.

[0007]   Also, attach a resin casting cover 40 to the bottom of the switch body 1 to To the terminal 14 which is located in the resin casting cover 40 while protruding from the lower part of the die 1. Even if the electric wire 41 is connected and the resin casting cover 40 is filled with the resin 42, Good.

[0008]

[Action]

  Therefore, the O-ring 11 should be located slightly above the spherical core a of the spherical body portion 9. This allows you to operate the switch by tilting the handle 8 greatly. The O-ring 11 does not separate from the inner surface of the holding portion 10 and is always held Stable waterproof performance can be ensured by being in pressure contact with the inner surface of the part. Also, the switch Attach the resin casting cover 40 to the bottom of the switch body 1 so that Connect the electric wire 41 to the terminal that is located inside the resin casting cover 40 while protruding. If the resin 42 is filled in the resin casting cover 40, the switch body B. It is possible to prevent water and dust from entering from the bottom side of the 1 It is possible to prevent a short circuit between the consecutive terminals 14.

[0009]

【Example】

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. As shown in Figure 1 The waterproof switch has a handle case 2 divided into upper and lower parts and a switch body 1. Therefore, the subject is composed. A movable contact plate 12 is arranged in the switch body 1. The contact 13 provided at the end of the movable contact plate 12 is moved to the terminal 14 by the movement of the movable contact plate 12. The switch is turned on by making contact with the connected contact 15. Handle case The sleeve 2 is formed in the shape of a receiving box with an open top, and the flange 3 is formed from the peripheral edge of the top. It is projected to the side. The handle case 2 is attached to the lower surface of the flange 3 4 is attached to the upper surface of the panel 16 as an opening edge when it is attached to the opening provided in The packing 5 is provided. The handle shaft 2 is supported by the support shaft 17. A dollar 8 is attached, and the handle 8 is cut inside the handle case 2. It is adapted to be connected to the replacement shaft 7. Above the bottom plate 2a of the handle case 2 A holding cylinder 6 is integrally provided so as to project toward one side, and a switching shaft 7 is provided on the holding cylinder 6. Is rotatably attached. The switching shaft 7 is a handle as shown in FIG. A drive rod 7c is attached to the lower portion of the shaft 7a via a spring 7b, A spherical portion 9 is provided on the handle shaft 7a. The upper part of the holding cylinder 6 is a sphere The retaining portion 10 is formed by providing a retaining piece 19 that covers the upper surface side portion of the body portion 9. The switching shaft 7 engages the spherical portion 9 with the holding portion 10 of the holding tubular body 6 so that the spherical portion 9 is rotatably attached to the holding cylinder body 6, so that the switching shaft 7 can be rotated. It is designed to fall to the left and right within a fixed range. Recessed groove 9 provided on the outer surface of the spherical portion 9 An O-ring 11 is provided on a, and this O-ring 11 is provided on the inner surface of the holding portion 10. It is in constant pressure contact, ensuring the waterproofness of the holding part. Where O The ring 11 is arranged slightly above the ball core a of the spherical body portion 9. In other words, O phosphorus The concave groove 9a in which the groove 11 is held is positioned slightly above the ball center a of the spherical body portion 9. So that the O-ring 11 is placed above the spherical portion 9. Even if the switching shaft 7 is greatly tilted when the switch is switched, The ring 11 is always in pressure contact with the inner surface of the holding portion 10. Figure In the embodiment shown, the tilt angle of the switching shaft 7 is changed by operating the handle 8. Is about 13 °, but the elevation angle is 13 ° or more from the ball core a when the switching shaft 7 is set upright. The O-ring 11 is arranged at the position of the upper angle C. On the side of the handle case 2 Has a supporting projection 18 having a spring property, which is provided so as to project laterally.

[0010]   Then, by switching the steering wheel 8, the switching shaft 7 is either left or right. The movable contact plate 12 moves due to the switching shaft 7 falling. Then, the switch is turned on and off. And to the mounting part The switch is mounted with the switch body 1 in the opening provided in the mounting part 4 By inserting the dollar case 2 and pressing the support protrusion 18 against the opening edge of the panel 16, It can be installed without using screws, etc. The kin 5 is pressed against the upper surface of the panel 16 to ensure the waterproofness of the mounting portion. It has become so. Also, at the mounting portion of the switching shaft 7, the handle case A holding cylinder 6 is integrally provided so as to project upward from the bottom plate 2a of the seat 2. Water that has penetrated into the handle case 2 due to the switching shaft 7 being inserted into the tubular body 6 Does not easily penetrate into the switch body 1, and is further inserted into the holding cylinder 6. The switching shaft 7 to be fitted with the O-ring 11 provided on the spherical portion 9 is the inner surface of the holding portion 10. Since it is pressure-contacted with the It is possible to securely prevent the intrusion of the adhesive from the mounting part to the panel. 16 Handle case 2 that can prevent water and dust from entering the inside Can reliably prevent water and dust from entering the switch body 1. It has become so.

[0011]   6 to 10 show a second embodiment of the present invention. This is a switch body A box-shaped resin casting cover 40 is provided on the bottom of the base 1 via a packing 43. The electric wire 41 is connected to the terminal 14 in the resin casting cover 40. Therefore, the resin casting cover 40 is filled with the resin 42 and is in a sealed state. ing. Because of this structure, from the bottom side of the switch body 1. It is possible to prevent the entry of water and dust, and to project it from the switch body 1. A short circuit does not occur between the terminals 14 that are connected to each other.

[0012]

[Effect of device]

  In the present invention, as described above, the handle case is mounted on the upper part of the switch body, and The holding cylinder is projected integrally with the bottom plate of the handle case and inserted into the holding cylinder. Connect the upper part of the switching shaft to the handle installed in the handle case, and The sphere provided on the replacement shaft is rotatably held in the holding cylinder, and A retaining piece is provided to cover the upper surface of the sphere to form a holding part, which is provided on the sphere. The O-ring is pressed against the inner surface of the holder, and the O-ring is slightly above the spherical core of the spherical body. Since it is located at, the amount of operation movement of the handle is large and the switching axis is tilted greatly. The O-ring may be separated from the inner surface of the holding part even when the switch is operated. Stable waterproofing by keeping pressure contact with the inner surface of the holding part Performance can be secured.

[0013]   Also, attach a resin casting cover to the bottom of the switch body to Connect the wire to the terminal that protrudes from the bottom and is located inside the resin casting cover. If the resin is filled in the oil casting mold cover, switch body Water and dust can be prevented from entering from the bottom side of the and connected to the wire A short circuit between terminals can be prevented, and the waterproof performance should be even higher. Is something that can be done.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

2A and 2B show a waterproof switch, in which FIG. 2A is a front view, FIG. 2B is a side view, and FIG. 2C is a bottom view.

FIG. 3 is an exploded sectional view of the above.

FIG. 4 is a half sectional view of a switch body.

FIG. 5 is a sectional view showing a second embodiment of the present invention.

FIG. 6 is a view showing the above waterproof switch,
(A) is a front view, (b) is a side view, and (c) is a bottom view.

FIG. 7 is an exploded sectional view of the above.

FIG. 8 is a half sectional view of a switch body used in the above.

FIG. 9 is a bottom view of the same resin casting cover before being attached.

FIG. 10 is a sectional view of a resin casting cover and packing used in the same as above.

FIG. 11 is a sectional view of a conventional example.

FIG. 12 is a cross-sectional view of another conventional example.

FIG. 13 is a sectional view of still another conventional example.

FIG. 14 is a cross-sectional view showing a defect of the conventional example.

[Explanation of symbols]

1 switch body 2 handle case 6 holding cylinder 7 Switching axis 8 handles 9 sphere 10 Holder 11 O-ring 19 retaining piece A ball core

Claims (2)

[Scope of utility model registration request] 1. A handle case is mounted on an upper portion of a switch body, a holding cylinder is integrally provided so as to project upward from a bottom plate of the handle case, and an upper portion of a switching shaft inserted into the holding cylinder is a handle. Connected to the handle mounted in the case, the sphere part provided on the switching shaft is rotatably held by the holding cylinder, and a retaining holding piece that covers the upper side part of the sphere is provided on the upper part of the holding cylinder. A waterproof switch in which a holding portion is provided to form a holding portion, an O-ring provided on the spherical portion is pressed against the inner surface of the holding portion, and the O-ring is positioned slightly above the ball core of the spherical portion. 2. A resin casting cover is attached to a lower portion of the switch body, and an electric wire is connected to a terminal projecting from a lower portion of the switch body and located inside the resin casting cover. The waterproof switch according to claim 1, wherein the waterproof switch is filled with resin.