KR19990009151U - Multi-stage contact switch device - Google Patents

Abstract

The present invention relates to a multi-stage contact switch device that enables at least four contact points of a switch unit provided on a printed circuit board assembly.

The multi-stage contact switch device according to the present invention includes a pinion rotatably installed on a hinge shaft formed inside the side wall of the case of the product; A multi-stage switch unit installed on the printed circuit board fixedly installed at a predetermined position inside the case; A rack installed between the pinion and the multi-stage switch unit to receive the rotational motion of the pinion so that the multi-stage switch unit linearly moves; The pinion is rotated by a predetermined angle outside the side wall of the case, characterized in that it comprises a rotation operation means for forming at least four or more contacts of the multi-stage switch.

According to the multi-stage contact switch device according to the present invention, the number of contact points of the switch unit provided on the printed circuit board assembly is configured to be at least four or more, so that a plurality of switch devices are separated into several parts without designing a product. By designing the switch device in a certain part of the case, there is an effect that can mass-produce reliable products.

Description

Multi-stage contact switch device

The present invention relates to a multi-stage contact switch device, and more particularly, to a multi-stage contact switch device to enable at least four or more contact points of the switch unit provided on the printed circuit board assembly.

Conventionally, an electronic product such as a camcorder is provided with a multi-stage contact switch device to perform various functions at a predetermined position of the product, which will be described with reference to FIGS. 1 and 2.

1 is an exploded perspective view illustrating an exploded view of a conventional multi-stage contact switch device, and FIGS. 2A and 2B are views illustrating an operation state of a conventional multi-stage contact switch device.

At a predetermined position on the bottom 2 surface of the case 1 of the product, a printed circuit board assembly 4 for performing various functions of the product is fixedly attached by a bolt (not shown), which is one of fastening means, and the case ( The edge of the printed circuit board assembly 4 adjacent to the side wall 3 of 1) is provided with a multi-stage switch section 6 in which the positions of the contacts are changed in three steps.

The multi-stage switch unit 6 includes a first protrusion 7 protruding in the direction of the side wall 3 of the case 1, and applies linear force to the first protrusion 7 to perform a three-step linear motion. It is configured to change the position of the contact.

A circular hinge shaft 9 having a predetermined length is formed at a predetermined position inside the side wall 3 of the case 1, and the trajectory of the circle penetrates the side wall 3 corresponding to the upper portion of the circular hinge shaft 9. The guide hole 10 of a predetermined length is formed to move along.

The outer circumferential surface of the circular hinge shaft 9 is provided with a rotator 11 having a rotation hole 12 at the center thereof so as to be rotatable, and an inserting portion for inserting a predetermined object into the lower outer circumferential surface of the rotator 11. A pair of second protrusions 13 having 14) is formed.

In addition, a third protrusion 15 is formed on the rear side of the rotator 11 so as to be slidably inserted into the guide long hole 10 and protrudes a predetermined length toward the rear side of the side wall 3. It serves to rotate the rotator 11 about the circular hinge axis 9 only within the range of the guide long hole 10 in the user mounting state.

Between the rotator 11 and the multi-stage switch unit 6 is provided with a linear motion conversion member 18 to rotate the rotator 11 in a multi-stage switch unit 6 to change the contact point by the linear movement This linear motion converting member 18 is slidably seated relative to the bottom 2 surface of the case 1. An insertion hole 19 into which the first protrusion 7 of the multi-stage switch unit 6 is inserted is formed at one side of the front surface of the linear motion conversion member 18, and the insertion unit of the rotator 11 is located at a predetermined position of the upper surface. The fourth protrusion 20 fitted to the 14 is formed.

Here, the physical relationship between the second projection 13 of the rotator 11 and the fourth projection 20 of the linear motion conversion member 18 fitted to the insertion portion 14 is such that the rotator 11 is within a predetermined angle. When only the rotational movement is performed, the fourth protrusion 20 of the linear motion converting member 18 is not separated from the insertion portion 14 of the second protrusion 13 of the rotator 11.

In addition, the length in which the linear motion converting member 18 is linearly moved due to the physical relationship with the rotator 11 is not separated from the insertion part 14 of the second protrusion 13 by the fourth protrusion 20. Since the linear motion conversion member 18 is limited in length, the number of contacts made in the multi-stage switch section 6 provided on the printed circuit board assembly 4 is three or less. It is limited to.

Here, reference numeral 16 denotes a knob fitted to the third protrusion 15 outside the side wall 3, and 9 'denotes an E ring fitted to an end of the circular hinge shaft 9.

Referring to Figures 2a, 2b the operating state of the conventional multi-stage contact switch device configured as described above are as follows.

As shown in FIG. 2A, the linear motion converting member 18 in which the fourth protrusion 20 is fitted into the insertion portion 14 between the second protrusions 13 while the rotator 11 is not rotated in a specific direction also performs linear motion. In this case, the contact position change of the multi-stage switch unit 6 provided in the printed circuit board assembly 4 is not generated.

In other words, the first projection 7 of the multi-stage switch section 6 is in the A contact position.

In this state, when the user operates the knob 16 to move the projection 15 clockwise along the inside of the guide hole 10 of the side wall 3 of the case 1, the rotator 11 is clockwise. By a predetermined angle.

As the rotator 11 is rotated in the clockwise direction, the inner wall surface of the insertion portion 14 between the second protrusions 13 pushes the fourth protrusion 20 so that the straight reciprocating conversion member 18 is straight in the D direction on the drawing. In this case, since the linear reciprocating converting member 18 is coupled to the first protrusion 7 of the multistage switch unit 6, the contact positions of the multistage switch unit 6 are sequentially positioned at the A position. Change to the position of B and C.

According to the structure of the conventional multi-stage contact switch device as described above, the change of the contact position of the multi-stage switch unit 6 installed on the printed circuit board assembly 4 receives the rotational movement of the rotator 11 operated by the user. When the linear motion converting member 18 is linearly moved, the fourth projection 20 of the linear motion converting member 18 from within the insertion portion 14 between the pair of second projections 13 of the rotator 11. Is possible only within the range that is not deviated, because of this, there was a problem that can not produce more than four contact points of the multi-stage switch unit (6).

The present invention has been made to solve the above problems, and an object of the present invention is to provide a multi-stage contact switch device capable of at least four or more contact points of a switch unit installed on a printed circuit board assembly.

1 is an exploded perspective view showing an exploded conventional multi-stage contact switch device.

Figure 2a, Figure 2b is a view showing the operating state of the conventional multi-stage contact switch device.

Figure 3 is an exploded perspective view showing an exploded multi-stage contact switch device according to the present invention.

Figure 4a, Figure 4b is a view showing the operating state of the multi-stage contact switch device according to the present invention.

Explanation of symbols for main parts of the drawings

1: case 2: bottom 3: side wall

4 printed circuit board assembly 6 multi-stage switch 9 round hinge shaft

10: guide ball 30: pinion 32: protrusion

33: rack

Multi-stage contact switch device according to the present invention for achieving the above object is a pinion rotatably installed on the hinge shaft formed inside the side wall of the case; A multi-stage switch unit installed on the printed circuit board fixedly installed at a predetermined position inside the case; A rack installed between the pinion and the multi-stage switch unit to receive the rotational motion of the pinion so that the multi-stage switch unit linearly moves; The pinion is rotated by a predetermined angle outside the side wall of the case, characterized in that it comprises a rotation operation means for forming at least four or more contacts of the multi-stage switch.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of a multi-stage contact switch device according to the present invention will be described in detail. The member number of the same structural member as before is given the same member number.

Figure 3 is an exploded perspective view showing an exploded multi-stage contact switch device according to the present invention.

The printed circuit board assembly 4 for performing various functions of the product is fixedly attached to a predetermined position on the bottom 2 surface of the case 1 of the product by a bolt (not shown), which is one of fastening means, and the case 1 On the edge of the printed circuit board assembly 4 adjacent to the side wall 3 of the multi-stage switch), a multi-stage switch unit 6 in which the position of the contact is changed in multiple stages is installed.

Here, the multi-stage switch unit 6 is provided with a first protrusion 7 protruding in the direction of the side wall 3 of the case 1, which is different from the conventional one so as to have at least four contacts.

A circular hinge shaft 9 having a predetermined length is formed at a predetermined position inside the side wall 3 of the case 1, and has a rotational trajectory that penetrates the side wall around the hinge shaft and rotates at a predetermined radius. The guide ball 10 is formed to extend a predetermined length than the length of the guide ball 10 of the.

The circular hinge shaft 9 is provided with a pinion 30 having a rotation hole 31 at the center thereof so as to be rotatable.

The upper part of the rear side of the pinion 30 is formed with a protrusion 32 penetrating the guide ball 10 to protrude a predetermined length toward the rear side of the side wall 3, and the protrusion 32 is operated by the user. The pinion 30 is guided by the ball of the guide ball 10 and serves as an operating rod to rotate a predetermined angle about the circular hinge axis (9).

Between the pinion 30 and the multi-stage switch 6, a rack 33 is installed to receive the rotational movement of the pinion 30 so that the multi-stage switch unit 6 performs a linear movement to change the contact point. 33 is geared to the pinion 30 as well as seated to be slidably moved relative to the bottom 2 surface of the case 1.

At one side of the side of the rack 33, an insertion hole 34 into which the first protrusion 7 of the multi-stage switch unit 6 is fitted is formed.

Here, reference numeral 16 denotes a knob fitted to the protrusion 32 outside the side wall 3, and 9 'denotes an E ring fitted to an end of the circular hinge shaft 9.

Referring to Figures 4a and 4b the operating state of the multi-stage contact switch device according to the present invention configured as described above are as follows.

Figure 4a, 4b is a view showing the operating state of the multi-stage contact switch device according to the present invention.

As shown in FIG. 4A, since the rack 33 is not linearly moved while the pinion 30 is not rotated in a specific direction, a change in the contact position of the multistage switch 6 installed in the printed circuit board assembly 4 does not occur. In other words, the first projection 7 of the multi-stage switch section 6 is in the E contact position.

In the above state, when the user operates the knob 16 so that the protrusion 32 is rotated by a predetermined angle in the clockwise direction with the guidance of the guide ball 10 formed in the side wall 3 of the case 1, the pinion 30 ) Is rotated a predetermined angle clockwise.

As the pinion 30 is rotated in the clockwise direction, the rack 33 geared thereto is linearly moved in the L direction in the drawing, and the rack 31 is connected to the first protrusion 7 of the multistage switch part 6. Since they are engaged, the contact positions of the multi-stage switch section 6 are sequentially changed from E to F, G, H, I, JK.

As described above, according to the multi-stage contact switch device according to the present invention, by configuring so that the number of contacts in the switch unit provided on the printed circuit board assembly at least four, by separating a plurality of switch devices in several parts It is effective to mass-produce reliable products by designing switch devices in a certain part of the case without designing the product.

Claims (2)

A pinion rotatably installed on a hinge axis formed inside the side wall of the case of the product; A multi-stage switch unit installed on the printed circuit board fixedly installed at a predetermined position inside the case; A rack installed between the pinion and the multi-stage switch unit to receive the rotational motion of the pinion so that the multi-stage switch unit linearly moves; And a rotation manipulation means configured to rotate the pinion by a predetermined angle outside the side wall of the case so that at least four contacts of the multi-stage switch unit are formed. 2. The rotating apparatus of claim 1, wherein the rotation manipulation means comprises: a guide ball passing through the side wall around the hinge axis and having the same trajectory as the rotation trajectory of the pinion; Multi-stage contact switch device, characterized in that configured to pass through the guide ball on one side of the pinion to protrude out of the case, the operation rod for rotating the pinion under the guidance of the guide ball.