JP2000049919A - Remote controller for radio telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a structure by which a switching state of a lock push switch is discriminated externally and the lock push switch is surely switched even when there is a step difference between a center of the lock push switch and a center of a corresponding manual operation key. SOLUTION: In the waterproof remote controller for a radio telephone set where pluralities of manual operation keys 3, 4, 5 are integrally formed to a waterproof rubber 6 fixed to a controller case 2 in fluid tight via a thin deformation part 6a, and inner ends of the manual operation keys 3, 4, 5 are respectively opposite to push switches 9, 10 and a lock push switch 8 placed on a printed circuit board 7 in the inside of the controller case 2, the manual operation key 3 opposite to the lock push switch 8 is opposed to a push rod 8a in a lock state of the lock push switch 8 in a natural state where no external force is received.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio telephone used in factories and construction sites, and more particularly to a remote controller for a radio telephone.

[0002]

2. Description of the Related Art In a radio telephone used in a factory or a construction site, a remote controller A as shown in FIG. The remote controller A is preferentially connected to the ear microphone B and the wireless telephone main body C.
A mute key F for a conference call / mute mute, a wired coupling key G for priority coupling,
A plurality of manual operation keys including a hook key H for performing center calling / hang-up are arranged.

That is, as shown in FIG. 5, a mute key F, a wire connection key G, and a hook key H form a thin deformation portion J with respect to a waterproof rubber I fixed to the surface of a controller housing E in a liquid-tight manner. Mute key F
Is in a locked state in which the push rod 1 of the push switch L with lock is pressed against the push rod 1 of the push switch L with lock provided on the printed circuit board K inside the controller housing E so as to be pressed by a fingertip. Alternatively, it can be selectively switched to a non-operating state of a non-pressed state. Further, the remaining wired coupling key G and hook key H are opposed to the push buttons m of the first push switch M ₁ and the second push switch M ₂ on the printed wiring board K, respectively. The first push switch M
It can be switched _first or second push-switch M _2.

[0004]

By the way, as shown in FIG. 7, the above-mentioned mute key F is manually operated.
In order to push the push rod l of the push switch L with the lock to the lock position by pressing to the position shown by the dashed line, the push rod 1 is integrally molded so as to protrude from the waterproof rubber I in its natural state. The switching state of the push switch L with a lock cannot be determined based on the tactile sensation of a fingertip, and the user often feels inconvenience. In addition, the remote controller A needs to be formed as thin as possible so as not to obstruct the work. Under such conditions, the push rod of the push switch L with lock mounted on the printed wiring board K is required. center of l and mute key F
Step X ₁ is generated between the center of the pressing force of the Mute key F is not transmitted to the push rod l of accurately Lock push switch L, causing the operation errors.

Further, even in a wired coupling key G and hook key H described above, as shown as a representative in a wired coupling key G in FIG. 6, the center of the first push switch M ₁ of the push button m on the printed wiring board K A step X ₂ is generated between the wire connection key G and the center of the wire connection key G.
Pressing force is happening is a problem that not correctly transmitted to the first push-push button m of the switch M _1.

SUMMARY OF THE INVENTION In view of the above-described problems of the conventional remote controller, the present invention has an object to determine the switching state of a push switch with a lock from the outside, and to manually operate a key corresponding to the center of the push switch with a lock. An object of the present invention is to provide a structure capable of reliably switching the push switch with lock even if there is a step between the center and the center.

[0007]

According to the present invention, a plurality of manually operated keys are integrally formed on a waterproof rubber fixed to a controller housing through a thin-walled deformation portion. A waterproof remote controller for a wireless telephone in which the inner ends of these manually operated keys are respectively opposed to a push switch and a push switch with a lock installed on a printed circuit board inside the controller housing. The present invention proposes a structure in which the manually operated key is opposed to the push rod in the locked state of the push switch with lock in a natural state where no external force is applied.

In the following description of a preferred embodiment of the present invention, 1) a contact member that can contact the inner end of the corresponding manual operation key is fixed to the tip of the push rod, and the contact member moves the push rod. A structure in which the moment due to the step in the direction of movement of the corresponding manual operation key is reduced.2) The inner end of the manual operation key corresponding to the push switch has one end pivotally supported inside the controller housing. A structure in which a portion near the movable end of the member is fixed and the movable end faces the corresponding push button of the push switch will be described.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a sectional view corresponding to FIG. 5 described above, showing a waterproof remote controller according to the present invention. A mute key 3 for conference call and transmission mute is provided on the surface of a controller housing 2 closed by a molded lid 1. Wired connection key 4 for priority connection, center call
A plurality of manual operation keys including a hook key 5 for disconnecting a call are arranged as in the related art.

That is, the mute key 3, the wire connection key 4, and the hook key 5 are integrated with the waterproof rubber 6 fixed to the surface of the resin-molded controller housing 2 in a liquid-tight manner through the thin deformation portion 6a. Although the mute key 3 is formed, the mute key 3 is opposed to a push rod 8a of a lock push switch 8 provided on a printed wiring board 7 inside the controller housing 2 so as to be pressed by a fingertip. The push rod 8a can be selectively switched to a pressed locked state or a non-pressed state. Further, the wired connection key 4 and the hook key 5 are the push buttons 9a, 10 of the first push switch 9 and the second push switch 10 on the printed circuit board 7.
a of the first push switch 9 by an instantaneous pressing operation of the wired coupling key 4 or the hook key 5.
Alternatively, the second push switch 10 can be switched.

FIG. 3 shows the relationship between the above-mentioned mute key 3 and a push switch 8 with a lock mounted on the printed circuit board 7. The push switch 8 with a lock is a push rod 8a urged in a projecting direction by a spring 8b. Each time the push rod 8a is pressed, the lock position is alternately switched between the lock position shown by the solid line and the inoperative position shown by the two-dot chain line. A mute key 3 is provided at the tip of the push rod 8a.
The contact member 11 having a sufficiently larger area than the rear end surface is fixed, and the resin-molded contact member 11 is opposed to the rear end of the mute key 3, but the mute key 3 is in a natural state where no external force is applied. At a position facing the contact member 11 in a locked state.

Therefore, the push switch with lock 8
When the push rod 8a is in the locked state (shown by the solid line) by the built-in lock mechanism, the mute key 3 is in a natural state retracted into the waterproof rubber 6, and the mute key 3 is manually operated to push the push rod 8a. When the locked state of 8a is released, the contact member 11 is brought to the position indicated by the two-dot chain line, and the mute key 3 is pushed out to the projecting position indicated by the two-dot chain line with the contact member 11, so that the push with the lock can be visually or tactilely sensed. The switching state of the switch 8 can be known. Further, since the contact member 11 formed of hard resin has a sufficiently larger area than the rear end surface of the mute key 3, the moving direction of the push rod 8a of the push switch 8 with the lock and the Even if there is a step in the moving direction, the pressing force of the mute key 3 is
As a result, the size of the remote controller can be reduced.

Returning to FIG. 1, in order to reliably transmit the pressing operation force of the wired coupling key 4 to the push button 9a of the first push switch 9, a resin molding is provided between the wired coupling key 4 and the first push switch 9. A rigid agitating member 12 is provided. That is, a fan shaft 12a is integrally formed at one end of the rigid fan member 12, and the rigid fan member 12 can be fanned about the fan shaft 12a as a center of rotation. The movable end of the rigid fanning member 12 is integrally formed with a frame-shaped sheath portion 12b for receiving the rear end portion of the relatively flexible wired coupling key 4, and the movable end of the movable end opposite to the frame-shaped sheath portion 12b. A pressing projection 12c located at the center of the push button of the first push switch 9 is integrally formed on the surface. The rear end face of the hook key 5 is opposed to the push button 10 a of the second push switch 10 through an opening 13 formed in a portion near the base of the rigid fan 12.

Therefore, since the rigid agitating member 12 is interposed between the wired coupling key 4 and the first push switch 9, the operation force of the fingertip applied to the wired coupling key 4 is:
It is converted into the propulsive motion of the rigid fanning member 12 via the rigid frame-shaped sheath portion 12b, and the pressing protrusion 1 of the rigid fanning member 12 is formed.
Since the push button 9a of the first push switch 9 is pressed by 2c, even if there is a step between the center of the moving direction of the wired coupling key 4 and the center of the push button 9a of the first push switch 9, the wired coupling is performed. Since the operation force of the key 4 can be reliably transmitted to the first push switch 9, a small remote controller that does not interfere with the operation can be obtained.

[0015]

As is apparent from the above description, according to the first aspect of the present invention, the manual operation key integrally formed with the waterproof rubber completely follows the switching state of the push rod of the push switch with lock. Therefore, the switching state of the lock-equipped push switch can be known visually or tactilely. According to the second and third aspects of the present invention, even if there is a step in the position of the push switch with lock or the position of the push switch corresponding to the position of the manual operation key, the switch can be operated without obstacles, so that the small remote controller can be operated. Can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a remote controller according to the present invention.

FIG. 2 is an enlarged sectional view of the remote controller taken along line 2-2 in FIG. 1;

FIG. 3 is an enlarged sectional view of the remote controller taken along line 3-3 in FIG. 1;

FIG. 4 is a perspective view showing a relationship between a conventional wireless telephone and a remote controller.

FIG. 5 is a sectional view of a main part of a conventional remote controller.

FIG. 6 is an enlarged sectional view of the remote controller taken along line 6-6 in FIG. 5;

FIG. 7 is an enlarged sectional view of the remote controller taken along line 7-7 in FIG. 5;

[Description of Signs] 2 Controller housing 3 Mute key (manual operation key) 4 Wired coupling key (manual operation key) 5 Hook key (manual operation key) 6 Waterproof rubber 6a Thin deformed part 7 Printed wiring board 8 Push switch with lock 8a Push rod 9 First push switch 9a Push button 10 Second push switch 10a Push button 11 Contact member 12 Rigid agitating member

Claims (3)

[Claims] A plurality of manual operation keys are integrally formed through a thin deformation portion with respect to a waterproof rubber liquid-tightly fixed to a controller housing, and inner ends of these manual operation keys are connected to the controller housing. In the waterproof remote controller of the wireless telephone that is respectively opposed to the push switch and the lock push switch installed on the internal printed wiring board, the manual operation key opposed to the lock push switch is in a natural state where it is not subjected to external force, A remote controller for a wireless telephone, wherein the remote controller is opposed to a push rod in a locked state of the push switch with lock. 2. A contact member, which is capable of contacting the inner end of the corresponding manual operation key, is fixed to the tip of the push rod, and the contact member causes a moment due to a step between the moving direction of the push rod and the moving direction of the corresponding manual operation key. 2. The remote controller for a wireless telephone according to claim 1, wherein the distance is reduced. 3. An inner end of a manual operation key corresponding to the push switch is fixed to a portion near a movable end of a rigid fanning member having one end pivotally supported inside a controller housing,
2. The remote controller according to claim 1, wherein the movable end faces a corresponding push button of the push switch.