JP2001043840A - Battery pack lock mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery pack lock mechanism suitable for reducing manufacturing cost of a portable telephone set by simplifying metallic mold structures for parts constituting the battery pack lock mechanism. SOLUTION: A sliding knob 30 has a guide groove 31 and elastic pieces with inward hooks 32. A sliding recessed part 40 is provided with guide rails 41 and locking pieces 42. When the sliding knob 30 which preliminarily holds compressive springs 10 at the inside of left and right elastic pieces with inward hooks 32 is slid to the sliding recessed part 40 and tips of the elastic pieces 32 for inward hooks 32 and the locking pieces 42 are engaged by fitting of the guide rails 41 and the guide groove 31, the compressive springs 10 contract and the sliding knob 30 is locked within the sliding recessed part 40 in an energizing state by the reaction.

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 mechanism for mounting a battery used in a portable telephone on the portable telephone.

[0002]

2. Description of the Related Art FIG. 5 is an external perspective view showing how to mount a battery pack on the back of a portable telephone. In FIG. 5, a battery pack 6 containing an operating battery for a mobile phone is shown.
Has a locking groove 7 at a front end and a locking groove 8 at a rear end. The battery housing 5 has a sliding knob 3 at a front end and a locking claw 2 at a rear end. To attach the battery pack 6 to the battery housing 5, the locking claw 2 provided at the rear end of the battery housing 5 is provided.
After engaging the locking groove 8 at the rear end of the battery pack 6,
Lock groove 7 of battery pack 6 and protrusion 3a of sliding knob 3
And are engaged. To remove the battery pack 6, slide the slide knob 3 in the direction of arrow A with a finger to
a and the lock groove 7 of the battery pack 6 is released, and the locking claw 2 and the locking groove 8 are disengaged. The battery pack lock mechanism relates to the above components, and particularly relates to a sliding operation mechanism of the sliding knob 3.

As a battery pack lock mechanism used for a portable telephone, there is a known example disclosed in Japanese Patent No. 2788897 for smoothing the operation mechanism of the sliding knob and improving the accuracy. With the rapid spread of mobile phones, there is a demand for cost reduction by further miniaturization and simplification of the structure.

[0004]

SUMMARY OF THE INVENTION In view of the above technical background, the present invention has a simple configuration and structure of components of a battery pack lock mechanism, facilitates the manufacture of a molding die, and reduces the manufacturing cost of a portable telephone. It is an object of the present invention to provide a battery pack lock mechanism suitable for reducing power consumption.

[0005]

In order to solve the above problems, a sliding knob according to the present invention has a guide groove having a concave cross section and an elastic piece with an inward hook on the left and right sides, and the sliding knob is mounted. The sliding concave part has a guide rail and a locking piece,
Insert a slide knob with a compression spring between the left and right inward hooked elastic pieces in advance into the slide recess, and slide the slide knob into the slide recess while fitting the guide rail and guide groove together. By engaging the tip of the elastic piece with inward hook with the locking piece of the sliding recess, the compression spring contracts and the sliding knob is urged in the opposite direction to the insertion of the sliding knob by the reaction force. In this state, it is locked in the sliding recess.

That is, the present invention relates to a battery pack lock mechanism for detachably engaging and fixing a battery pack between a locking claw of a battery storage section of a mobile phone and a sliding knob, wherein the engagement of the battery storage section is provided. A sliding recess formed on the back upper surface of the mobile phone main body opposite to the pawl and having a locking piece;
A sliding knob slidably sliding in the sliding recess, wherein the sliding knob is formed on both sides thereof in parallel with the sliding direction, and a pair of left and right guide grooves having a concave cross section; A pair of left and right inward hooked elastic pieces provided inside the guide groove,
A compression spring sandwiched between the pair of inwardly hooked elastic pieces, wherein the sliding recess is slidably fitted with a pair of guide grooves of the sliding knob. With rails,
The tip of a pair of elastic pieces with inward hooks of the sliding knob comes into contact with the locking pieces integrally provided on the upright surface of the sliding concave portion and is elastically deformed, so that the inner side of the pair of inward hooks is deformed. By holding the locking piece, the protrusion of the sliding knob provided as a mating partner and the lock groove provided in the battery pack are fitted, and the sliding knob is A battery pack locking mechanism characterized in that the battery pack is locked by being urged in the direction of a locking claw of a battery storage unit.

[0007] With the above arrangement, after the locking groove provided at one end of the battery pack is engaged with the locking claw of the battery accommodating portion, the protrusion of the sliding knob is formed against the repulsive force of the compression spring. By engaging with the concave groove of the battery pack, the battery pack can be easily mounted and fixed to the battery storage portion.

[0008]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a sliding knob 30 and a sliding recess 40, FIG. 2 is a rear view (a), a side view (b) showing the sliding knob 30, and FIG. It is the top view (a) and front view (b) which show the recessed part 40. As shown in FIG.
A battery storage unit 5 is provided on the back surface of the mobile phone body 1,
A sliding recess 40 is provided in the upper part of the mobile phone main body 1 facing the battery housing 5. The sliding concave portion 40 is formed in a concave groove shape having a two-step flat surface in which a part of the mobile phone main body 1 is cut out.

The sliding knob 30 is inserted into the sliding recess 40 in the direction of arrow A in FIG. As shown in FIG. 2, the sliding knob 30 has a pair of guide grooves 31 on both sides and an elastic piece 32 with an inward hook inside thereof. It can be elastically deformed. Further, a gap S is provided between the left and right inward hooked elastic pieces 32, and the compression spring 10 is sandwiched in the gap S as shown in FIGS.

As shown in FIG. 1, when the slide knob 30 is inserted in the direction of arrow A, the guide groove 31 engages with the guide rail 41 of the slide recess 40, and the m and n surfaces of the slide recess 40 are in contact with each other. The sliding resistance of the contacting sliding knob 30 is reduced, and a smooth guiding action is performed.

As shown in FIGS. 3 (a) and 3 (b), the sliding concave portion 40 forms a concave groove having a two-step plane portion of an m-plane and an n-plane. p and q and q in FIG.
Indicates a space, and two sets of p and q are locking pieces 4 as if communicating.
2, the distal ends of a pair of left and right inwardly hooked elastic pieces 32 of the sliding knob 30 penetrate the spaces p and q.

FIGS. 4A and 4B are a sectional view showing the position of the sliding knob 30 and the sliding recess 40 before the assembly, and FIGS. At the end of the sliding operation, the inclined surface f of the distal end portion of the inward hook elastic piece 32 comes into contact with the locking piece 42, so that the distal end portion opens elastically in the direction of arrow B as shown in FIG. The locking piece 42 can be received in the space S between the left and right inwardly hooked elastic pieces 32, so that the sliding knob 30 can be mounted on the sliding recess 40 very easily. At this time, the compression spring 10 contracts, and the slide knob 30 can be returned in the direction opposite to the arrow A in FIG. This allows
The projection 30a of the sliding knob 30 projects from the upright surface 1A of the mobile phone main body 1 and locks the sliding knob 30.
By simply inserting the slide knob 30 into the sliding knob 30, the operation of assembling the sliding knob 30 can be performed very easily.

With the above configuration, after the locking groove 8 provided at one end of the battery pack 6 is engaged with the locking claw 2 of the battery housing 5, the sliding is performed against the repulsive force of the compression spring 10. Moving knob 3
The battery pack 6 can be easily mounted and fixed to the battery housing 5 by engaging the protrusion 30A of the No. 0 with the lock groove 7 of the battery pack 6.

[0015] In response to the recent demand for portable telephones aiming at reduction in size and weight, the sliding knob and the sliding concave portion of the present invention are most preferably formed of a resin molded product using a mold. The sliding recess 40 does not require components such as, for example, a spring insertion pin in the related art. In particular, the structure of the sliding recess 40 has a small uneven portion and a small variation in the thickness of the resin material. It is suitable for injection molding, and not only facilitates the manufacture of a mold, but also has a remarkable effect on improvement of accuracy such as reduction of product distortion. Note that the portable telephone described in the present invention includes a portable small telephone including a PHS.

[0016]

According to the present invention, the production of a resin molding die is facilitated, and the simplification of the component structure reduces the assembly man-hours and component costs. It is possible to provide a highly reliable mobile phone.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a sliding knob and a sliding concave portion according to an embodiment of the present invention.

FIG. 2 is a rear view (a) and a side view (b) of the sliding knob according to the embodiment of the present invention.

FIG. 3 is a plan view (a) and a front view (b) of a sliding concave portion according to an embodiment of the present invention.

FIGS. 4A and 4B are a sectional view of a sliding knob and a sliding recessed portion according to an embodiment of the present invention before assembling, and FIGS.

FIG. 5 is a perspective view showing a relationship between a mobile phone main body and a battery pack.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mobile telephone main body 2 ... Locking claw 3 ... Sliding knob 3a, 30a ... Protrusion part 5 ... Battery storage part 6 ... Battery pack 7 ... Lock groove 8 ... Locking groove 10 ... Compression spring 30 ... Sliding knob 31 ... Guide groove 32 ... elastic piece with inward hook 40 ... sliding recess 41 ... guide rail 42 ... locking piece

Claims (1)

[Claims] 1. A battery pack locking mechanism for detachably engaging and fixing a battery pack between a locking claw of a battery storage portion of a mobile phone and a sliding knob, wherein the battery pack is opposed to the locking claw of the battery storage portion. A sliding recess formed on the back upper surface of the opposite side of the mobile phone main body and having a locking piece, and a sliding knob slidably sliding in the sliding recess, wherein the sliding knob is A pair of left and right guide grooves formed on both sides thereof in parallel to the sliding direction and having a concave cross section; a pair of left and right inward hook elastic pieces provided inside the guide grooves; and a pair of inward hooks A compression spring sandwiched between the elastic pieces, and the sliding recess has a pair of guide rails that slidably fit with a pair of guide grooves of the sliding knob, Before the distal ends of a pair of inward hooked elastic pieces of the sliding knob are integrally provided on the upright surface of the sliding recess. A projection of the sliding knob, which is provided as a mating partner by being elastically deformed in contact with the locking piece and holding the locking piece inside a pair of inward hooks; and A battery pack lock mechanism, wherein a lock groove provided in the battery pack is fitted, and the sliding knob is urged and locked in a direction of a locking claw of the battery storage unit.