GB2223145A - A microphone with a simple head assembly - Google Patents

Abstract

A microphone includes a wire-netted cover 10, a pick-up device 20; a hollow handle 30, a transmitting switch 40, a wiring assembly 50, an inner tube 60, and a supporting base 70. Most of the elements comprising the pick-up device 20 are integrally formed so as to enhance its performance. Moreover, the wiring assembly 50 is provided with two pairs of wires each pair having a respective sleeve 51 which is removably connected to respective posts 42 of the transmitting switch 40. Other terminals 520, 530, of the wiring assembly 50 are removably connected to the posts 291 of the pick-up device 20 and the supporting base 70 respectively. The supporting base 70 further comprises a connector 71, a ring 73, and a flexible member 72. The supporting base 70 can be inserted into the hollow handle member 30 and can be detached by the function of the ring 73 when torsion is applied to the supporting base 70. <IMAGE>

Description

A MICROPHONE WITH A SIMPLE HEAD ASSEMBLY The present invention relates to a microphone, more particularly to a microphone with an improved pick-up assembly and a stable supporting base for protecting the cord from crimping or being damaged.

As can be seen in Fig. 1, a conventional microphone substantially includes a wire-netted cover 1, a pick-up assembly 2, a handle member 3, a transmitting switch 4, at least one pair of wires 5, an inner tube 6, a cord 7, a block 8, and a flexible member 9. It should be noted that inb the assembly of these elements reside the following disadvantages.

(a) Referring to Fig. 2, a knowr. pick-up assembly is provided, including a head member 2a, a diaphragm 2b, a body frame 2c, a washer 2d, a magnet core 2e, a yoke.

iron 2f, an inner sleeve 2g, a sound pressure regulator 2h , and a housing 2i. The assembling method of said pickup assembly superimposes one element on another element.

Thus, a great deal of the procedures are involved in accomplishing this assembly. Thus, It can be understood that the speed of producing a pick-up device is greatly decreased. Likewise, the productivity of a pick-up device is also decreased. Economically, such a method may not be worthwhile to follow.

(b) The connection of most of the elects in the conventional microphone is achieved through the utilization of a soldering method which may cause a melting of the elements1 (if said elements are made of a plastic material).

(c) In a conventional microphone , the cord 7 is easily pulled and crimped at the corner 3a of the smaller end of. handle member 3. Due to the fact that the handle member 3 is made of firm material and both of the cord 7 and the flexible member 9 are made of a separate pliable material, the copper-wire is easily dislodged breaking the microphone.

It is accordingly a primary object to provide a microphone which is capable of overcoming the above .

mentioned problems.

Therefore, a microphone according to this invention comprises, a hollow handle member having a first opened end and a second opened end; a pick-up means for transmitting sound signals to an audio appliance, the pick-up means being joined with the first opened end of the hollow handle member and having a first pair of posts for electrical connection; an electric cord having a first end for connecting with the microphone, and a second end for connecting with the audio appliance; a connector member affixed to the first end of the electric cord, the connector member being sleeved onto the second opened end of the hollow handle member; a second pair of posts protruded from the connector member, the posts being electrically connected with the electric cord; and a circuit wired within the hollow handle member, the circuit having sleeves for detachably joining with the first posts and the second posts, allowing the pick-up means to electrically connect to the electric cord.

Other objects of the invention will become apparent, and the invention readily understood, from the following description read in conjunction with the accompanying drawings in which: Fig. 1 is a sectional view of a conventional microphone.

Fig. 2 is an exploded perspective view of a pick-up device of a conventional microphone.

Fi. 3 is an exploded perspective view of a microphone according to the present invention.

Fig. 4 is a sectional view of a microphone which has been assembled.

Fig. 5 is an exploded perspective view of a pickup device according to the present invention.

Fig. 6 is a schematic view of a wiring assembly connection of two pair of wires with sleeves at its terminals to a common terminal.

Fig. 7 is a sectional view of another embodiment of a microphone according to the present invention.

Referring first to Fig. 3, a microphone according to this invention is shown, including a wire-netted cover 10, a pick-up device 20, a hollow handle member 30, a transmitting switch 40, a wiring assembly 50, an inner tube 60, and a supporting base 70. The wire-netted cover 10 further includes an upper cover 10a and a lower cover 10b. The pick-up device 20 (see Fig. 5) further comprises a head member 21, a diaphragm 22, a coil 23, a body frame 24, an annular washer 25, a cylindrical magnet core 26, a yoke iron 27, an inner sleeve 28, a sound pressure regulator 37, a housing 38, and a plate 29. The head member 21 is joined with one end of the body frame 24, a diaphragm 22 being disposed between the washer 25 and the head member 21.The plate 29 is disposed on the position of the body frame 24 having a first pair of posts 291, the coil 23 being disposed between the diaphragm 22 and the headvmember 21 to connect the.coil 23 electrically to the plate 29. The housing 38 has a closed end and circumferentially surrounds the body frame 24. The sound pressure regulator 37 is disposed between the closed end of the housing 38 and the yoke iron 27. The cylindrical magnet core 26 circumferentially surrounds the yoke iron 27, the annular washer 25 being affixed to one end of the yoke iron 27, and the body frame 24 circumferentially surrounding the yoke iron 27. It should be noted that the body frame 24 is integrally joined with the yoke iron 27, the magnet core 26, and the washer 25 by means of a molding material.The pick-up device 20 is used for transmitting sound signals to an audio appliance, and is accommodated within the cover 10. The hollow handle member 30 is substantially a tapered member having a first opened end 31 forming a larger end and a second opened end 32 forming a smaller end. The first opened end 31 is engaged with the cover 10 by the attachment of the cylindric member 12. The second opened end 32 has a sloped flange 322 inwardly protruded along its periphery.

The sloped flange 322 has a pair of openings 321 which are correspondingly formed therein, and are divided into two arcuated portions 320 by the openings 321. Each arcuated portion 320 is respectively provided with a notch 323 radially and inwardly formed thereon. In addition, a hole 33 is disposed at a position adjacent to the first end 31 of the hollow handle member 30 to receive the transmitting switch 40. The transmitting switch 40 is fixedly disposed on the external surface of the hollow handle member 30 and provided with a third pair of posts 42 for the connection of wires.

The inner tube 60 is substantially a compressionformed metallic plate. The inner tube 60 is disposed within. the hollow handle memnber for weighting the microphone, and has an external wall and an internal wall. The external wall makes tight contact with the hollow handle member 30, enabling the inner tube 60 to fixedly sleeve 5 with the hollow handle member 30. The inner tube 60 further has a groove 61, circumferentially formed in the internal wall of the inner tube 60, extending along a periphery which is near the second opened end 32 of the hollow handle member 30, and a first slot 62 circumferentially opened therein. The supporting base 70 comprises a connector 71, a ring 73, a flexible member 72 and an electric cord 77, which are integrally formed.The electric cord 77 has a first end for connecting with the microphone, and a second end for connecting with the audio appliance. The connector 71 is affixed to the first end of the electric cord and sleeved onto the second end 32 of the hollow handle member 30. The connector 71 has a pair of ribs 751 protruded therefrom engaging with the groove 61 of the inner tube 60. A tongue member 78 is protruded from the central position of the connector 71 so as to engage with the first slot 62 of the inner tube 60. The ring 73 is formed around the electric cord 77 and has a pair of lugs 74 radially, outwardly and correspondly protruded therefrom. The lugs 74 are detachably engaged with the notches 323 through the pair of openings 321 at the second end of the handle member 30, enabling the ring 73 to disengage from the sloped flange 322.The flexible member 72 is formed around the electric cord 77 to protect the electric cord 77 from the damage due to pulling or crimping.

A second pair of posts 76 are protruded from the connector member 71 and are electrically connected with the electric cord 77. Thus, a circuit is wired within the hollow handle member 30. This circuit has two pair of sleeves for detachably joining with the first posts 291 and the second posts 76, so as to -allow the pick-up device 20 to be electrically connected to the electric cord 77. The transmitting switch 40 is fixedly disposed on the external surface of the hollow handle member 30 and is electrically connected between the first pair of posts 291 and the second pair of posts 76. The transmitting switch 40 has a third pair of posts 42 which are protruded into the hollow handle member 30 and are electrically connected with the transmitting switch 40, enabling the transmitting switch 40 to turn the microphone on and off.The wiring assembly 50 substantially includes connections of two pairs of wires.

That is, one of the third pair of posts 42 being respectively electrically connected, between one of the first pair of posts 291 and one of the second pair of posts 76, by a sleeve 51. The other one of the third pair of posts 42 is respectively electrically connected between the other one of the first pair of posts 291 and the other one of the second pair of posts 76 by another sleeve 51.

Referring to Fig. 5, the pick-up device 20 is first assembled by insertion of the molding material and operation of the molding and shaping machine. After finishing with this procedure, the body frame 24, the yoke iron 27 with a central part 260, the magnet core 26 with a central hole 270, and the washer 25, are integrally formed. In addition, a feeding slot 271, disposed on the yoke iron 27, is provided to supply the molding material during the molding process. The coil 23 is attached on the diaphragm 22, the terminals of which are connected to the plate 29. All the elements of the microphone must then be assembled together in order that a complete pick-up device 20 may be formed.

Referring to Figs. 3 and 4, the inner tube 60 is first received within the smaller end 32 of the hollow handle member 30. Secondly, the wiring assembly 50 can be put into the inner tube 60 from the smaller end 32 of hollow handle member 30. The sleeves 530 of the wiring assembly 50 are then inserted into the second pair of posts 76. Thirdly, the combination of the handle member 30 and the supporting base 70 is achieved by the passing of the lugs 74 of the ring 73 through the openings 321 and advancing them to the notches 323 of the sloped flange 320 by means of an application of a torsion.At this time, the bottom of the second end 32 of the hollow handle member 30 may be urged into tight contact with the flexible member 72, and the tongue member 78 of the connector 71 inserted into the first slot 62 of the inner tube 60, while the ribs 751 are sleeved into the groove 61. Fourthly, the sleeves 51 along with wires 52 and 53 are led out from the hole 33 for sleeving onto the third pair of posts 42 on the transmitting switch 40. The, the switch 40 is mounted adjacent the first end 31 of the external surface on the hollow handle member 30. Also, the sleeves 520 along with wires 52 of the wiring assembly 50, are led out from the first end 31 of hollow handle member 30 for sleeving onto the first pair of posts 291 on the pick-up device.Finally, a complete microphone is created when the pick-up device 20 is placed into the first end 31 of the hollow handle member 30 and the wire-netted cover 10 is affixed onto the first end 31 of the hollow handle member 30.

Referring to Fig.7, another embodiment of a microphone according to the present invention is illustrated. The prominent difference between this embodiment and that illustrated in Fig. 4, is that this embodiment lacks the second pair of posts. Thus, the wires 80 are directly connected to the connector 71 of the supporting base 70.

It should be noted that the connector 71, according to this invention, adopts ABS material.( A kind of hard material.) Moreover, the flexible member 72 generally employs a pliable PVC material. Therefore,the combination of both these materials brings about the best effect, revealed in that the cord can be protected from crimping or damage. In addition, the fact that the connector and the flexible memeber are formed integrally, greatly hinders separation. Thus, in overcoming the proir arts' defect revealed in the susceptibility to crimping or damage, this invention offers a stable supporting base 70 including the connector 71, the ring 73 and the flexible member 72.

Although the invention has been described in terms of certain preferred embodiments, modifications will be apparent to those skilled in the art. All such modifications are intended to be included within the scope of the following claims.

Claims (14)

CLAIMS:

1. A microphone for picking up sound signals and transmitting them to an audio appliance, comprising: a hollow handle member having a first opened end and a second opened end; a pick-up means for transmitting sound signals to said audio appliance, said pick-up means being joined with said first opened end of said hollow handle member and having a first pair of posts for electrical connection; an electric cord having a first end for connecting with said microphone, and a second end for connecting with said audio appliance; a connector member affixed to said first end of said electric cord, said connector member being sleeved into said second opened end of said hollow handle member; a second pair of posts protruded from said connector member, said posts being electrically connected with said electric cord; and a circuit wired within said hollow handle member, said circuit having sleeves for detachably joining with said first posts and said second posts, allowing said pick-up means to electrically connect to said electric cord.

2. A microphone as claimed in Claim '1, wherein said circuit further comprises a switch means fixedly disposed on the external surface of said hollow handle member, said switch means being electrically connected between said first posts and said second posts, enabling said circuit to be turned on and off.

3. A microphone as claimed in Claim 2, wherein said switch means has a third pair of posts inwardly protruded in said hollow handle member and electrically connected with said switch means, enabling said switch means to turn the microphone on and off, one of said third pair of posts being respectively and electrically connected between one of said first pair of posts and one of said second pair of posts by a sleeve, the other one of said third pair of posts being respectively and electrically connected between the other one of said first pair of posts and the other one of said second pair of posts by another sleeve.

4. A microphone as claimed in Claim 1 further comprising an inner tube disposed within said hollow handle member for weighting said microphone, said inner tube having an external wall and an internal wall, said external wall making tight contact with said hollow handle member, enabling said inner tube to fixedly sleeve with said hollow handle member, wherein said inner tube has a groove circumferentially formed in said internal wall of said inner tube, extending along a periphery which is near said second opened end of said hollow handle member, and a first slot circumferentially opened therein.

5.A microphone as claimed in Claim 4, wherein said hollow handle member has a sloped flange inwardly protruded along the periphery of said second opened end, said sloped flange having a pair of openings correspondingly formed therein, axially cutting across said sloped flange, and a pair of notches axially and inwardly formed thereon.

6. A microphone as claimed in Claim 5,, wherein said connector has a pair of ribs protruded therefrom, engaging with said groove of said inner tube , and a tongue member protruded therefrom, engaging with said first slot of the same.

7. A microphone as claimed in Claim 6, further comprising near said connector, a ring formed around said electric cord, said ring having a pair of lugs radially, outwardly and correspondingly protruded therefrom, detachably engaging with said notches, said pair of lugs being adapted to pass through said pair -of openings, enabling said ring to disengage from said sloped flange.

8. A microphone as claimed in Claim 7, further comprising next to said connector and said ring, a flexible member formed around said electric cord to protect said electric cord from the damage of being folded.

9. A microphone as claimed in Claim 8, further comprising a wire-netted cover affixed in said first opened end of said hollow handle member, enveloping said píck-up means.

10. A microphone as claimed in Claim 8, wherein said hollow handle member is tapered so that said first opened end is a larger end and said second opened end is a smaller end.

11. A microphone as claimed in Claim 1, wherein said pick-up means comprises: a cylindrical magnet core; a yoke iron circumferentially surrounding said magnet core; an annular washer affixed to one end of said yoke iron; and a body frame circumferentially surrounding said yoke iron, said body frame being integrally joined with said yoke iron, said magnet core and said washer by means of a molding material.

12. A microphone as claimed in Claim 4, wherein said . .

pick-up means further comprises: a head member joined with one end of said body frame; a diaphragm disposed between said annular washer and said head member; and a plate disposed on a position of said body frame having a first pair of posts.

13. A microphone as claimed in Claim 8, wherein said pick-up means still comprises: a coil disposed between said diaphragm and said head member, 'said coil being electrically connected to the first pair of posts on said plate; a housing having a closed end, -said housing circumferentially surrounding said body frame; and a sound pressure regulator disposed between said closed end of said housing and said yoke iron.

14.A microphone substantially as described with reference to Fig.3 - Fig.7 of the drawings.