JPH054254Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to slide-operated electrical parts such as slide volumes and slide switches, and in particular,
The present invention relates to a mounting structure for a leaf spring that urges a slider receiver toward a substrate.

[Conventional technology]

For this type of slide-operated electrical parts,
In order to apply appropriate sliding friction to the slider receiver, a biasing means is provided for urging the slider receiver toward the substrate.

Such biasing means include one in which an elastically deformable arm is integrally molded on a slider holder made of synthetic resin;
It is known that a leaf spring formed into a predetermined shape is attached to the top surface of the slider holder, but the latter type of leaf spring is commonly used for slide volumes and slide switches that require downsizing. . The leaf spring was positioned and attached to the slider receiver by means of, for example, inserting a hole provided in the leaf spring into a pin protruding from the upper surface of the slider receiver.

[Problem that the invention attempts to solve]

However, with the miniaturization of electrical components in recent years, the slider holder itself has gradually become smaller, or as seen in illuminated slide volumes, sliders other than leaf springs are mounted on the top surface of the slider holder. etc., it becomes difficult to secure sufficient space for positioning the leaf spring on the upper surface of the slider holder, and this has been a major cause of hindering miniaturization.

Therefore, the purpose of the present invention is to solve the above-mentioned problems of the prior art, to make it possible to position and arrange a leaf spring in a narrow space on the upper surface of the slider receiver, and to provide a compact slide-operated electric component. It is about providing.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a slide-operated electrical component comprising a substrate having a conductive pattern, a frame placed on the substrate and having a guide hole on its upper surface, a slider receiver made of synthetic resin disposed between the frame and the substrate and having an operation knob on its upper surface protruding from the guide hole and a slider on its lower surface that slides against the conductive pattern of the substrate, a light emitting means provided on the top of the operation knob, and a leaf spring interposed between the upper surface of the slider receiver and the lower surface of the frame, wherein the lower surface of the frame has a pair of lead plates made of thin metal plates extending in the operating direction of the operation knob and positioned opposite to each other with the operation knob in between. a pair of first slider receivers are provided on the upper surface of the slider receiver in sliding contact with the lead plate and a portion of each of the first slider receiver is embedded in the slider receiver; the operation knob is provided with an opening that opens in the operating direction and accommodates a pair of reed pieces, the pair of reed pieces contact a pair of terminals of the light-emitting means, respectively, and are formed integrally with the pair of first sliders, a portion of the leaf spring is embedded in the slider receiver and is formed integrally with at least one of the reed pieces, the leaf spring has a click protrusion, and a click recess that can be engaged and disengaged with the click protrusion is provided at a predetermined position on the underside of the frame.

[Effect]

As mentioned above, if a part of the leaf spring is buried in the slider receiver made of synthetic resin, there is no need for special locking means to position the slider receiver and the leaf spring, and the upper surface of the slider receiver becomes Leaf springs can be installed in narrow spaces. This leaf spring is made by, for example, pressing out a hoop-shaped elastic plate and forming a spring part in a part thereof, and then molding a slider holder on the hoop material, leaving at least this spring part. By cutting off the section from the hoop material and bending it toward the upper surface of the slider receiver, it can be formed continuously in the molding process of the slider receiver.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is an exploded perspective view of an illuminated slide volume according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view of the main parts showing its assembled state, and FIG. 3 is an exploded perspective view of an illuminated slide volume according to an embodiment of the present invention. FIG. 1 is a plan view of the slider receiver of FIG.

In these figures, reference numeral 1 denotes a substrate made of an insulating material, on the upper surface of which a total of four resistors 2 and current collectors 3 are arranged, two for each slide volume unit, and a total of four resistors 2 and current collectors 3 are arranged in parallel around these. is a plurality of locking holes 1a
and a through hole 1b are formed. 4 is a first slider holder made of synthetic resin, and 5 is a second slider holder also made of synthetic resin.
These slider receivers are integrated via a connecting means, which will be described later, to constitute one slider receiver.

An operating knob 6 is integrally provided on the first slider receiver 4, and a main body portion of a light emitting means, that is, a light emitting diode 7 is fitted into the top of the operating knob 6.
A recess 6a for positioning is formed, and a communication groove 6 communicating with the recess 6a is formed inside the operating knob 6.
b is formed. In addition, insert molding is performed so that first sliders 8, 8', spring pieces 9, 9', and lead pieces 10, 10' extend upward in pairs from the first slider receiver 4. The first slider 8, spring piece 9, and lead piece 10 of one set are continuously electrically connected inside the slider receiver 4, and similarly The first slider 8', the spring piece 9' and the lead piece 10' are also continuously electrically connected inside the slider receiver 4, and both sets are insulated. As is clear from FIG. 3, the spring pieces 9 and 9' are located on both sides of the slider receiver 4, and the first sliders 8 and 8' are located on the inside of the sliders 8 and 8' so that they do not overlap each other. It's summery. Furthermore, as is clear from Fig. 2, both lead pieces 1
0 and 10' are bent upward and extend into the communication groove 6b of the operating knob 6. and,
When the light emitting diode 7 is attached to the operating knob 6, the lead pieces 10, 10' elastically contact and hold the terminal 7a of the light emitting diode 7 in the communication groove 6b, thereby preventing the light emitting diode 7 from coming off and making an electrical connection. ing.

Further, opposing support walls 4a are integrally formed on both side surfaces of the first slider receiver 4, and these support walls 4a
Between the inner surface of the slider receiver 4 and the lower surface of the first slider receiver 4, there is a space 1 that allows insertion of the second slider receiver 5.
1 is defined, and a locking hole 12 (see FIG. 2) is formed in the top plate of this space 11, that is, the lower surface of the first slider receiver 4.

On the other hand, a pin 13 that can be fitted into the locking hole 12 is protruded from the upper surface of the second slider receiver 5, and a set of second slider receivers is provided from the side surface of the pin 13. The mover 14 is insert-molded so as to extend downward.

Reference numeral 15 denotes a frame body made of synthetic resin, which is composed of a top plate part 15a, a side wall 15b, and a partition wall 15c.
A plurality of rectangular guide holes 16 are formed in 5a at predetermined intervals. A plurality of lead plates 17 made of thin metal plates are insert-molded in this frame 15, and two lead plates 17 for each guide hole 16 extend in parallel on the lower surface of the top plate portion 15a. , extends downward along the side wall 15c, and can be inserted through the through hole 1b of the substrate 1. Further, a click recess 15d that can be engaged with and detached from a click protrusion described later is formed at a predetermined position on the lower surface of the top plate portion 15a, and connecting pins 18 are vertically provided on the lower surface of the partition wall 15c. is adapted to be inserted into the locking hole 1a of the substrate 1. Reference numeral 19 denotes a friction plate made of synthetic resin, and a cross-shaped friction plate 19a is provided at the center of the friction plate 19a to allow insertion into the operating knob 6 and to expose both first sliders 8, 8'. Notch hole 1
A notch 19a is formed at one corner to expose a click protrusion 9a formed on one spring piece 9.

Next, the assembly operation of the illuminated slide volume constructed as described above will be explained mainly with reference to FIG. 2.

First, the first slider receiver 4 manufactured in a separate process
and the second slider receiver 5 are prepared, and the second slider receiver 5 is prepared.
The two are integrated by fitting the pin 13 into the locking hole 12 of the first slider receiver 4. These first
The manufacturing process of the second slider receivers 4 and 5 will be described later, but both can be manufactured by an insert molding method with excellent productivity.

Also, before and after the above operation, the light emitting diode 7 is inserted and held in the operating knob 6, both terminals 7a of the light emitting diode 7 are connected to both lead pieces 10 and 10', and a friction plate is attached to the operating knob 6. 1
Insert the notch hole 19a of No. 9 and hold it.

Next, each slider receiver is inserted from below the frame 15 so that the operation knob 6 projects from the guide hole 16, and then each lead plate 17 and connecting pin 18 of the frame 15 is inserted into the through hole of the board 1. 1b and the locking hole 1a, each connecting pin 18 protruding from the lower surface of the substrate 1 is welded to place and fix the frame 15 on the substrate 1.

In this state, the second slider 14 extending on the lower surface of the second slider receiver 5 is in contact with each resistor 2 and current collector 3 on the substrate 1, and the first slider The first sliders 8, 8' extending on the upper surface of the child support 4 are in contact with the lead plate 17 on the lower surface of the top plate portion 15a through the notch holes 19a of the friction plate 19, respectively. Further, both spring pieces 9, 9' come into elastic contact with the lower surface of the top plate portion 15a via the friction plate 19, and the integrated slider receivers 4, 5 are pressed in the direction of the substrate 1 by the reaction force.

When the operating knob 6 is slid with a finger, the second slider 14 is moved in conjunction with the operating knob 6.
slides on each resistor 2 and current collector 3 of the substrate 1, so that the resistance value can be varied to an arbitrary value. Also,
During this sliding operation, the light emitting diode 7 connects the lead pieces 10, 10' to both terminals 7a, and the first slider which is electrically connected to the lead pieces 10, 10' inside the second slider receiver 4. Both lead plates 1 with which these first sliders 8, 8' come into sliding contact via 8, 8'
7 , light is emitted within the recess 6 a of the operating knob 6 when power is supplied to the lead plate 17 . Furthermore, during this slide operation,
The click protrusion 9a formed on one of the spring pieces 9 fits into the click recess 15d formed on the lower surface of the top plate portion 15a at a predetermined position, so that a click feeling (moderation feeling) can be obtained at that position.

Next, the manufacturing process of the first and second slider receivers 4 and 5 will be explained.

First, a hoop material 20 made of an elastic material is prepared and press-cut into the shape shown by the solid line in FIG. Fill the indicated area with molten resin. This two-dot chain line indicates the outer shell of the first slider receiver 4, and after insert molding in this way, when the hoop material 20 is cut at the position of the broken line in FIG. The hatched portion in the figure is separated from the hoop material 20. After that, when the desired bending process is applied to these hatched parts (first
A first slider receiver 4 is obtained in which the first slider 8, 8', the spring pieces 9, 9', and the lead pieces 10, 10' are integrally molded.

Further, after pressing the hoop material 21 made of an elastic material into the shape shown by the solid line in FIG. 5, it is sent to a molding die (not shown) and the part shown by the two-dot chain line in the figure is filled with molten resin. The second slider receiver 5 is molded in this portion. Thereafter, the hoop material 21 is cut along the dashed line in the figure, and the hatched portion is subjected to a desired bending process, thereby forming the second slider 14 and obtaining the second slider receiver 5.

The present embodiment is constructed as described above, with the lead plate 17 provided on the lower surface of the top plate portion 15a of the frame 15, the first slider 8 provided on the upper surface of the slider receiver,
Since power is supplied to the light-emitting diode 7 by 8', the dimensions of the substrate 1 and the slider receivers 4 and 5, particularly in the width direction thereof, can be significantly reduced.

Further, the spring pieces 9, 9' that apply elastic force to the slider receivers 4, 5 in the direction of the substrate 1 are held by being partially embedded in the first slider receiver 4. Therefore, there is no need to provide special means (for example, holes and pins) for positioning the spring pieces 9, 9' and the first slider receiver 4, and from this point of view, it is also suitable for downsizing. ing. Moreover, since the spring pieces 9, 9' are continuous with the first sliders 8, 8' and the lead pieces 10, 10', respectively, inside the first slider receiver 4, they can be assembled into one piece. The hoop material can be manufactured from a hoop material, and this serves as a holding portion for the hoop material during molding, thereby improving productivity.

Furthermore, a first slider receiver 4 having first sliders 8, 8' on its upper surface, and a second slider receiver 5 having a second slider 14 on its lower surface, Since these are integrated after being insert-molded in a separate process, a slider holder having upper and lower sliders can be manufactured by the highly productive insert-molding method.

[Effect of idea]

As explained above, the present invention has the first slider piece, the lead piece, and the lead plate as the light emitting means, so that the operating knob can be illuminated.

Since power is supplied to the light emitting means by a pair of lead plates arranged on the lower surface of the frame and a pair of first sliders provided on the upper surface of the slider receiver, the dimensions of the substrate and sliding In particular, the size in the width direction can be significantly reduced.

The first slider piece extends in the operating direction of the operating knob and is in sliding contact with a lead plate provided at a position opposite to the operating knob, and the lead piece extends in the operating direction of the operating knob. Because of this, the horizontal space of the operation knob can be effectively used and the size can be reduced.

Since the reed pieces are placed opposite to each other across the operating knob and embedded in the slider receiver, the slider receiver is well balanced and provides a smooth operating feel.

Since the pair of first sliders and the reed pieces are each integrally formed, and at least one of the reed pieces and the leaf spring are integrally formed, they can be manufactured from a single hoop material.

Since a click protrusion and a click recess are provided, a click sensation can be obtained.

[Brief explanation of drawings]

The figures are all for explaining an illuminated slide volume according to an embodiment of the present invention. Fig. 1 is an exploded perspective view of the main parts, Fig. 2 is a cross-sectional view of the assembled state, and Fig. 3 is the first slide volume. FIG. 4 is a plan view of the hoop material for explaining the manufacturing process of the first slider receiver; FIG. 5 is a plan view of the hoop material for explaining the manufacturing process of the second slider receiver. FIG. 3 is a plan view of the hoop material. 1... Substrate, 1a... Locking hole, 1b... Through hole,
2... Resistor, 3... Current collector, 4... First slider receiver, 4a... Supporting wall, 5... Second slider receiver,
6...Operation knob, 6a...Recess, 6b...Communication groove, 7...Light emitting diode, 7a...Terminal, 8,
8'...First slider, 9,9'...Spring piece, 9a
...Click projection, 10,10'...Lead piece,
11... Space, 12... Locking hole, 13... Pin, 14... Second slider, 15... Frame, 15
a...Top plate portion, 15b...Side wall, 15c...Partition wall, 15d...Click recess, 16...Guide hole, 17...Lead plate, 18...Connection pin, 19
... Friction plate, 19a ... Notch hole, 19b ... Notch, 21 ... Hoop material.

Claims (1)

[Claims for Utility Model Registration] A substrate having a conductive pattern, a frame placed on the substrate and having a guide hole on the upper surface, and a frame disposed between the frame and the substrate and protruding from the guide hole on the upper surface. a slider holder made of synthetic resin, each having a slider on its lower surface that slides into contact with the conductive pattern of the substrate, a light emitting means provided at the top of the operating knob, and an upper surface of the slider holder. and a leaf spring interposed between the lower surface of the frame, the slide-operated electric component having a plate spring on the lower surface of the frame that extends in the operating direction of the operating knob, and that extends in the operating direction of the operating knob, and that extends in the operating direction of the operating knob. A pair of first lead plates made of thin metal plates are disposed at opposing positions, and are in sliding contact with the lead plates on the upper surface of the slider receiver, and a part of the lead plates is embedded in the slider receiver. A slider receiver is provided in the operating knob, and the operating knob has an opening in the operating direction thereof;
Further, an opening is provided to accommodate a pair of lead pieces, the pair of lead pieces respectively contact the pair of terminals of the light emitting means, and are each formed integrally with the pair of first sliders, and the plate A part of the spring is embedded in the slider receiver and is formed integrally with at least one of the lead pieces, the leaf spring has a click protrusion, and the leaf spring has a click protrusion at a predetermined position on the lower surface of the frame. A slide-operated electrical component characterized by having a click protrusion and a click recess that is removable.