JPH0722921Y2 - Handset - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a handset such as a telephone.

2. Description of the Related Art In a conventional handset of this type, a modular connector jack and an electret condenser microphone (ECM) are separately fixed to a lower case with ribs and the like, and connection is made by using a wiring material.

However, as described above, since the modular connector jack and the ECM are separately fixed to the lower case with ribs and the wiring material is used for connection as described above, a person solders with a soldering iron. It had to be, and productivity was poor. Also, since the modular connector jack and the modular connector plug of the transmitter cord are connected directly at the end face below the handset, the cord connector of the modular connector plug is burdened each time the user uses the telephone, which causes disconnection. Cause
Further, there is a problem in that the plug and the modular connector jack are constantly moved to cause wear between the terminals, resulting in poor contact between the handset cord plug.

The present invention was made in view of the above problems, and the purpose thereof is to eliminate wiring materials, enable automatic assembly by a robot, improve productivity, It is to provide a handset that can protect the connector part of the handset cord that is most prone to failure.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention makes a unit by fixing a jack and a microphone on a printed circuit board, and fixes this unit with a rib provided on the lower case, The upper case is fitted to form the main body of the handset, the plug connected to the handset cord is inserted through the opening provided in the lower case to connect to the above jack, and the protector for the cord is fitted in the opening. The cord protector and the upper case clamp the handset cord.

Therefore, according to the present invention, the wiring material is eliminated and the robot can be automatically assembled, and the plug connected to the handset cord is inserted from the opening provided in the lower case to be connected to the jack. The cord protector is fitted in the opening, and the handset cord is pinched by the pinching part between the cord protector and the upper case. It has an effect that the plug portion can be sufficiently protected.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First
FIG. 1 is a perspective view of a handset according to the present invention with a part thereof omitted, and FIGS. 2 and 3 are different vertical sectional views of the handset. The handset is a modular connector jack 1
1, a printed circuit board 2, an ECM 3, a lower case 4, a cord protecting protector 5, and an upper case 6.

Modular connector jack 1 has mating ribs on both sides
1a and a plurality of contacts 1b on the back. The printed circuit board 2 has a connector fitting 2d on one side thereof, and rib fitting grooves 2a are formed on both side edges of the connector fitting portion 2d. The printed board 2 is provided with copper foil patterns 2b and 2c and mounting holes 2e. The ECM has a terminal 3a.

Further, the lower case 4 is provided with a case body 7, and an protector fitting portion 8 serving as an opening is provided at an end of the case body 7.
EC is formed in the center of the surface of the case body 7.
An M fitting portion 9 is formed. E on the surface of the case body 7
Positioning protrusions 4a are provided on the left and right sides sandwiching the CM fitting portion 9, and positioning ribs 4b are provided on the left and right sides of the protector fitting portion 8 on the surface portion. Further, the surface portion is provided with a heat-welding rib 4c aligned with the positioning rib 4b, and a fitting claw 4d positioned outside the positioning rib 4b,
Further, a fitting receiving rib 4e is provided on the surface portion so as to be located on the protector fitting portion 8 side.

Further, the cord protecting protector 5 is provided with a three-pronged fitting claw 5a, and an end edge portion of the cord protecting protector 5 is formed as a holding portion 5b. A groove 5c is formed on the outer surface of the cord protecting protector 5 in a direction perpendicular to the fitting direction of the cord protecting protector 5 into the opening.

In addition, the edge portion of the upper case 6 is formed as a holding portion 6b,
Protrusions 6a are provided on the left and right sides of the upper portion of the holding portion 6b.

Then, the modular connector jack 1 is fitted into the connector fitting portion 2d of the printed circuit board 2, the fitting rib 1a thereof is fitted into the rib fitting groove 2a, and the contact 1b of the modular connector jack 1 is made into a copper foil pattern. Solder to 2b, further apply ECM3 to the back surface of printed circuit board 2, solder the terminal 3a of this to copper foil pattern 2c, and attach modular connector jack 1 and ECM3 to printed circuit board 2 to form a unit. Constitute. Next, the positioning protrusion 4a of the lower case 4 is inserted into the mounting hole 2e of the printed circuit board 2 and locked, the ECM 3 is fitted into the ECM fitting portion 9, and the modular connector jack 1 is applied to the positioning rib 4b for positioning. Then, the heat welding ribs 4c are applied to the notches 2f on both sides of the rib fitting groove 2a of the printed circuit board 2 to heat weld the printed circuit board 2 with the heat welding ribs 4c, and the unit is attached to the lower case 4. Next, the lower case 4 is covered with the upper case 6, and the projection 6a at the end portion of the upper case 6 is fitted and locked to the fitting claw 4d of the lower case 4 so that the upper case 6 is fixed to the lower case 4 and transmitted and received. The container body A is assembled.

Then, after inserting the modular connector plug 10 into the modular connector jack 1 and fitting them, the protector 5 for cord protection is fitted into the protector fitting portion 8 which is the opening portion of the lower case 4, and the three-pronged fitting claw 5a. By fitting the into the fitting receiving rib 4e, the connection of the handset cord 11 is completed. In this case, the handset cord 11 is held between the holding portion 5b of the cord protector 5 and the holding portion 6b of the upper case 6.

As described above, according to the above-described embodiment, the modular connector jack 1 and the ECM3 are vertically inserted into the printed circuit board 2 and soldered to complete the connection, and the unit is vertically inserted into the lower case 4 to remove heat. EC by welding
Since the assembly of the M part is completed, the robot can automatically assemble it and the workability is improved. Further, by inserting the modular connector plug 10 into the modular connector jack 1 and fitting them together, the three-pronged fitting claws 5a of the protector 5 for cord protection are fitted into the fitting receiving ribs 4e of the lower case 4 so that the handset Since the cord 11 is held between the holding portion 5b of the protector 5 for protecting the cord and the holding portion 6b of the upper case 6,
By using the handset, the force repeatedly applied to the cord portion and the driving portion of the modular connector plug 10 of the handset cord 11 can be relieved.

When removing the handset cord 11, insert a minus driver into the groove 5c of the cord protector 5 and pull the cord protector 5 from the opening by pulling it in the negative fitting direction. remove.

As described above, according to the present invention, the modular connector jack and the microphone are fixed to the printed circuit board by soldering to form a unit, and the unit is fitted to the lower case to secure the fixing ribs and the heat provided on the lower case. Since the transmitter / receiver main body is configured by fixing the welding ribs and fitting the upper case to the lower case, the wiring material can be eliminated and the robot can be automatically assembled. In addition, insert the modular connector plug connected to the handset cord from the opening provided in the upper case to connect to the modular connector jack, and fit the cord protection protector in the opening to protect the cord. Since the handset cord is held between the upper case and the holding part, it is possible to protect the handset cord plug part, which is the most prone to failure in the telephone.

[Brief description of drawings]

FIG. 1 is a perspective view of a handset according to the present invention with a part thereof omitted,
2 and 3 are different vertical sectional views of the handset. 1 ... Plug, 2 ... Printed circuit board, 3 ... Electric condenser microphone (ECM), 4 ... Lower case, 5 ... Cord protector, 6 ... Upper case.

Claims (1)

[Scope of utility model registration request] 1. A modular connector jack having fitting ribs on both side surfaces, a connector fitting portion on one side, and rib fitting grooves formed on both side edges of the connector fitting portion. A protector fitting part is formed on the board and the end part, an electric condenser microphone fitting part is formed in the center of the surface part, and positioning protrusions are projected on the left and right sides sandwiching the electric capacitor microphone fitting part. A case, the modular connector jack is fitted to the connector fitting portion of the printed circuit board, an electric condenser microphone is applied to the back surface of the printed circuit board, soldered, and the modular connector jack is attached to the printed circuit board. It constitutes a unit to which the electric condenser microphone is attached, and Insert the positioning protrusion of the lower case into the mounting hole and lock it,
Fit the electric condenser microphone to the fitting portion of the electric condenser microphone, position the modular connector jack by positioning it against the positioning rib, and apply the heat-welding ribs to the notches on both sides of the rib fitting groove of the printed circuit board to remove heat. The printed circuit board is heat-welded to the welding ribs, the unit is attached to the lower case, the upper case is covered with the lower case, and the projection at the end of the upper case is fitted and locked to the fitting claw of the lower case. Then, the upper case is fixed to the lower case, the modular connector plug is inserted into the modular connector jack and fitted, and the cord protection protector is fitted to the protector fitting portion which is the opening of the lower case. , Fitting the three-pronged fitting claw into the fitting receiving rib, and sandwiching the cord protecting protector and the upper case respectively. Handset, characterized in that to clamp the handset cord.