JP2000215868A - Lock structure of battery pack of portable telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure having a waterproof function without opening a through hole in the case of a portable telephone set and without using an O-ring. SOLUTION: A recessed part 15 for sliding a knob is provided at the front end part 11a of the battery storage part of a portable telephone set 1. A sliding knob 13 is slidably stored in this recessed part 15 for sliding the knob. A driving groove 13b and a spring insertion pin 13c are provided on the back of the sliding knob 13. When the sliding knob 13 is stored in the recessed part 15 for sliding the knob, a spring 14 is fitted to the spring insertion pin 13c and is pressed in along a slide-guiding groove 15a in the recessed part 15 for sliding the knob. The sliding knob 13 is then further pressed in by abutting its end onto a protuberance 15b, and thereby, the protuberance 15b enters in the sliding groove 13b of the sliding knob 13. The restoring force of the spring 14 is applied to the sliding knob 13 so as to force it out, however, it is blocked by the protuberance 15b abutting the wall of the sliding groove 13b of the sliding knob 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack lock structure for a portable telephone, and more particularly to a battery pack lock structure applied to a waterproof portable telephone.

[0002]

2. Description of the Related Art As shown in FIG. 4, a battery pack of a portable telephone has a battery housing 3 provided on the back of the portable telephone 3.
1 is easily retained. When the battery pack 4 is mounted, the locking claw 32 provided on the rear end side of the battery housing portion 31
, The rear end side of the battery pack 4 is engaged with the battery pack 4, and the battery pack is rotated with the rear end as a fulcrum.
The battery pack 4 is locked by engaging a hook 33 provided on the front end side of the battery storage section.

The hook 33 is always pushed outward by the restoring force of a spring (not shown). However, when the lock release button 34 is pressed, the hook 33 slides and retreats inside. Therefore, when removing the battery pack 4, the lock is released by pressing the lock release button 34.

[0006] In the case of the mobile phone 3, through holes for the hook 33 and the lock release button 34 are formed. Therefore, in order to apply the present invention to a waterproof mobile phone, it is necessary to prevent water from entering the inside of the case through these through holes. For this reason, O-rings 35 and 36 are attached to the hook 33 and the lock release button 34, respectively, and these O-rings are brought into close contact with the inner surface of the case to obtain a waterproof function. Further, in order to fix the hook 33 and the lock release button 34 to the case, a metal plate is used for screwing.

[0005]

As described above, in the conventional battery pack lock structure of a portable telephone, the through holes of the hook and the unlock button are opened in the case of the portable telephone, and these through holes are inserted into the inside of the case. O-rings are used to keep water out. However, when the hook moves back and forth, and when the lock release button is pressed, the O-ring may move together, and the waterproof function is reduced. Further, since an O-ring is required, the number of parts is increased, and there is a problem that the assemblability is deteriorated.

An object of the present invention is to provide a battery pack lock structure of a portable telephone having a waterproof function without making a through hole in a case of the portable telephone and without using an O-ring.

[0007]

According to the present invention, there is provided a battery pack lock structure for a mobile phone, comprising: a battery housing portion formed in the mobile phone; and a sliding recess formed in the mobile phone adjacent to the battery housing portion. And a sliding knob slidably inserted into the sliding recess and having a hook portion engaged with the battery pack housed in the battery housing portion, wherein the sliding knob is connected to the sliding recess. The engagement guides in the sliding direction.

[0008] It is preferable that a spring that acts to push the slide knob out of the slide recess is provided in the slide recess.

The protrusion is provided on a surface of the slide recess substantially parallel to the back surface of the portable telephone, and the slide groove is provided on one surface of the slide knob engaging with the protrusion. It is desirable that

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is an external perspective view of a portable telephone to which the battery pack lock structure of the present invention is applied, and FIG. 2 is an enlarged perspective view of the battery pack lock structure.

In FIG. 1, a battery pack 2 is mounted in a battery housing 11 provided on the back of the mobile phone 1.
When the battery pack 2 is mounted, the locking claw 12 provided at the rear end of the battery housing 11 is engaged with the locking groove 22 at the rear end of the battery pack 2, and then the front end of the battery pack 2 is Of the battery pack 2 and the hook 21 at the tip of the sliding knob.
3a to engage and lock. Also, battery pack 2
To remove the battery pack 2, the sliding knob 13 is slid rearward with a finger to retract the hook portion 13a, and the engagement with the locking groove 21 of the battery pack 2 is released.

As shown in FIG. 2A, a knob sliding recess 15 is provided at the front end 11a of the battery housing of the portable telephone 1. The sliding knob 13 is accommodated in the knob sliding recess 15 so as to be slidable in the front-back direction. The sliding knob 13 is always pushed outward by the restoring force of the spring 14.

As shown in FIG. 2B, a sliding groove 13b and a spring insertion pin 1 are provided on the back side of the sliding knob 13.
3c is provided. When the sliding knob 13 is housed in the knob sliding recess 15, the spring 14 is inserted into the spring insertion pin 13 c and is pushed along the sliding guide groove 15 a of the knob sliding recess 15. Thereafter, the rear end of the sliding knob 13 comes into contact with the projection 15b provided in the knob sliding concave portion 15.
Into the sliding groove 13b of the sliding knob 13.

FIG. 3 shows an engagement state between the sliding groove 13b and the projection 15b. Here, FIG. 3A shows a state before the battery pack is mounted and at the time of locking, and a hook portion 13a provided at a distal end portion of the sliding knob 13 projects from the front end portion 11a of the battery storage portion. . In this state, the sliding knob 13 is about to be pushed outward by the restoring force of the spring 14, but the projection 15 b comes into contact with the wall of the sliding groove 13 b of the sliding knob 13 and stops. FIG. 3B shows a state in which the sliding knob 13 is retracted to unlock and remove the battery pack. Thus, the sliding groove 13b and the projection 15b
The sliding knob serves as a stopper for stopping the sliding knob from protruding from the recess.

With the above-described configuration, a waterproof battery pack lock structure can be formed without making a through hole in the case of the mobile phone and without using an O-ring.

[0017]

As described above, according to the present invention, a lock structure of a battery pack having a waterproof function can be formed without making a through hole in a case of a mobile phone and using an O-ring, and the number of parts can be reduced. This has the effect of being able to reduce and to improve the assemblability.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a waterproof type mobile phone according to the present invention.

FIG. 2 is a perspective view showing a battery pack lock structure of the present invention.

FIG. 3 is a view showing an engagement state between a sliding groove 13b and a projection 15b shown in FIG. 2;

4A and 4B are diagrams showing a battery pack lock structure of a conventional waterproof mobile phone, where FIG. 4A is a rear view of the mobile phone and FIG. 4B is a cross-sectional view taken along line AA. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cellular phone 2 Battery pack 11 Battery storage part 11a Front end part of battery storage part 12 Locking claw 13 Sliding knob 13a Hook part 13b Sliding groove 13c Spring insertion pin 14 Spring 15 Knob sliding concave part 15a Sliding guide groove 15b Projection 21 Locking groove 22 Locking groove

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H04M 19/08 H04B 7/26 V

Claims (1)

[Claims] A battery housing formed in the mobile phone; a sliding recess formed in the mobile phone adjacent to the battery housing; and a battery slidably inserted in the sliding recess. A sliding knob having a hook portion engaged with the battery pack housed in the housing portion, wherein the sliding knob is guided in the sliding direction by engagement with the sliding concave portion. Battery pack lock structure for mobile phones.