JPS6231975Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the lock structure of a battery unit that is slidably engaged with a part of a housing of a communication device or the like.

If either the battery unit or the communication device housing is provided with a guide groove and the other side is provided with a protrusion and the battery unit is slidably engaged with the housing, a locking structure is required to prevent the battery unit from falling. be.

FIG. 5 is a partial sectional view showing a typical example of the lock structure of such a conventional battery unit.

This figure shows that the battery unit 2', which is slidably engaged with the housing 1 through guide grooves and protrusions in a complementary relationship (not shown), is attached to the protrusion 4' of the lock fitting 4' provided on the housing 1.
2 and the recess 2'-2 of the battery unit 2' are shown in a locked state.

When slidingly engaging the battery unit 2' with the communication device housing 1, slide the battery unit 2' in the direction of the arrow in the figure and lock the locking metal fitting 4' in the recess provided on one side of the housing.
is once pressed by the protrusion 2'-1 having the inclined surface 2'-3 of the battery unit 2' and retracted into the housing, and then the battery unit protrusion 2 is further pushed so that the battery unit 2' is housed in the housing 1. '-1 recess 2'-
2, the protrusion 4'-2 of the lock fitting 4' is pushed down by the biasing force of the spring 5. When removing the battery unit 2' from the casing 1, push down the jagged surface 4'-1 on the side surface of the locking metal fitting 4' exposed on the casing surface with your fingers against the biasing force of the spring 5 to remove the battery unit 2'. Remove the battery unit 2' from the recess 2'-2 and insert it into the housing 1.
Bring out more.

In conventional lock structures with this type of structure, unless the biasing force of the spring that presses the lock metal fitting is quite strong, the jagged surface of the lock metal fitting may come into contact with something in the case of portable communication equipment that is used violently. This may cause the battery unit to come off. However, increasing the biasing force of the spring has a limit because it becomes difficult to operate.

The object of the present invention is to provide a locking structure for a battery unit which can eliminate the above-mentioned drawbacks without compromising the ease of sliding engagement and disassembly operations.

In order to achieve the above object, the lock structure for a battery unit according to the present invention is a lock structure for a battery unit to prevent a battery unit slidably engaged with a part of a communication equipment housing from falling. A locking tool whose cut surface has a protrusion that is larger at the tip and is biased so that the protrusion protrudes is provided, and when the battery unit is slidably engaged, this locking tool is provided. A biasing member is provided that gives the battery unit a tendency to move in a direction that releases the sliding engagement, and a biasing member is provided on one side of the battery unit facing the protrusion, the cut surface of which is larger than the cut surface of the protrusion. A large recess is provided inside, and when the battery unit is to be slidably engaged, the protrusion of the locking tool is temporarily retracted, and the recess and the protrusion of the locking tool are fitted, and when the battery unit is being released from the sliding engagement, the battery is removed. The unit is configured to slide to a position where the locking tool can be retracted, and the protrusion of the locking tool is retracted from the recess to release the fitting.

According to the above configuration, when the battery unit is inserted into the housing, it can be locked in the same manner as before, and even if some force is applied such as moving the lock fitting, the battery unit can be firmly held and the battery unit can be inserted into the housing. To remove it from the battery unit, push up the battery unit slightly and remove the locking metal fittings in the same way as before.
The purpose of the present invention can be fully achieved.

Hereinafter, the present invention will be explained in more detail with reference to the drawings. FIG. 1 is an external view of a communication device housing to which a lock structure according to the present invention is applied. A battery unit 2 is engaged with the lower right portion of the casing 1, and is detachable from the bottom 3 of the casing 1 in the direction of the arrow. A slight gap is created between the upper end of the battery unit 2 and the casing in the slidingly engaged state, and the battery unit 2 is connected to the connection contact 1- by the gap a.
3 (see Figure 2) and further moves slightly against the urging force.

FIG. 2 is a perspective view of the lower part of the housing with the battery unit 2 removed. A groove 1-1 is provided in the protrusion 1-2 on the housing 1 side, and protrusions 2-4 are provided on both outer sides of the battery unit 2 side, and the fitting of these parts The housing 1 and the battery unit 2 are engaged with each other. A lock fitting 4 is provided on the bottom 3 of the casing 1 and has a protrusion 4-2 whose cut surface is larger at the tip and a jagged surface 4-1 on one side.

FIG. 3 is a perspective view showing details of how the lock fitting 3 is assembled. When this part is disassembled and shown, it is divided into the aforementioned lock fitting 3, two springs 5, and a frame body 6. The lock fitting 4 and the spring 5 are arranged as shown in the figure, and the recess 3-
1 and its movement is regulated by a frame 6 that is screwed. Therefore, the lock fitting 4 is assembled into the recessed portion of the bottom portion 3 in the state shown in FIG. 2 by the biasing force of the spring 5. The protrusion 4-2 of the lock fitting 4 assembled in this way is retracted into the built-in portion when the jagged surface 4-1 is pushed downward with a finger or when the protrusion 4-2 itself is pushed. The protrusion 4-2 is connected to the battery unit 2 shown in FIG.
It is coupled to a recess 2-2 provided in a trapezoidal projection 2-1.

FIG. 4 is a partial sectional view showing the lock state of the lock structure according to the present invention and the structure of the trapezoidal protrusion of the battery unit. The shape of the recess 2-2 provided in the trapezoidal protrusion 2-1 is so-called undercut in that the inside is wider than near the entrance, and this recess is formed by the projection of the lock fitting 4 to be fitted. It is formed considerably larger than Article 4-2. The upper surface of the trapezoidal protrusion 2-1 becomes a mating surface with the surface of the protrusion 4-2 on the housing 1 side when the battery unit 2 is slidably engaged with the housing 1. The inner side surface of the trapezoidal projection 2-1 forms an inclined surface 2-3. The inclined surface 2-3 gradually retracts the protrusion 4-2 of the lock fitting 4 from just before the upper surface of the trapezoidal protrusion 2-1 becomes a mating surface with the surface with the protrusion 4-2 on the housing 1 side. play a role. When engaging the battery unit 2 with the housing 1, press the lock fitting 4 from the bottom with the battery unit 2 as shown by the arrow line shown in FIG. When the unit side protrusion 2-4 is fitted and slid, the lock fitting 4 is further pressed by the inclined surface 2-3 of the trapezoidal protrusion 2-1 of the battery unit part, and the reaction force of the spring 5 increases. When the battery unit is further pushed into the housing, the locking metal fitting 4 and the ridge 4-2 at the tip protrude from the battery unit recess 2-2, so that the battery unit 2 is locked and will not fall out.
As described above, the recess 2-2 provided in the trapezoidal protrusion 2-1 of the battery unit 2 is in an undercut state, and the battery unit 2 is also connected to the connection contact 1-3 provided in the casing 1. Since it is normally pressed down by the spring pressure of , the locking fitting protrusion 4-2 is brought into a state of engagement as shown in FIG. 4 within the recess 2-2. Note that the size of the recess 2-2 mentioned above is the same as that of the protrusion 4 of the lock fitting 4.
-2, the size is large enough to secure a gap that allows the battery unit 2 to be pushed up slightly and released from the engagement. As described above, the locking metal protrusion 4-2 and the recess 2-2 are engaged and locked within the fitting part, so if you try to push down the jagged surface 4-1 provided on the locking metal fitting 4 with your fingers as in the conventional case, It becomes impossible to move the protrusion 4-2 at the end of the lock fitting. Therefore, due to heavy use of portable communication devices, etc., which has been a drawback of conventional lock structures, the lock metal fittings are pushed down when the lock metal fitting's jagged surface touches something during work, and the lock metal fittings are pushed down by the weight of the battery unit. Accidents such as falling powder and loss of powder are eliminated.

When removing the battery unit 2 from the housing 1, further bend the housing contacts 1-3 springs, and remove the locking metal fitting while slightly pushing the battery unit 2 upward to the initial gap a between the housing 1 and the battery unit 2. When the jagged surface 4-1 is pushed down, the battery unit 2 is naturally pushed out by the spring pressing force of the contact 1-3.
It can be pulled out easily. There is a very low possibility that a movement corresponding to this movement will occur in the lock fitting part during carrying or handling operations, and the lock fitting will not move unless the battery unit 2 is pushed up intentionally.

As explained above, the present invention has a lock structure for the battery unit that prevents the battery unit from falling out and is securely held even under various situations that communication equipment faces during transportation and handling operations, and that can be installed with a single touch. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a side view of a portable communication device having a battery unit lock structure according to the present invention, FIG. 2 is an external perspective view of the lock structure of the battery unit according to the present invention, and FIG. FIG. 4 is a partial sectional view showing the lock structure of a battery unit according to the present invention, and FIG. 5 is a partial sectional view showing the lock structure of a conventional battery unit. 1...Casing, 1-1...Groove, 1-2...Protrusion,
1-3... Contact, 2, 2'... Battery unit, 2-1... Trapezoidal protrusion, 2-3, 2'-3...
Inclined surface, 2'-1... Protrusion, 2'-2, 2-2, 3
-1...Recess, 4, 4'...Lock fitting, 4-
1, 4'-1... Notched surface, 4-2, 4'-2... Projection, 5... Spring, 6... Frame, 7... Screw.

Claims (1)

[Scope of utility model registration request] In a battery unit lock structure for preventing a battery unit slidably engaged with a part of a communication device casing from falling, the casing has a protrusion on one surface of the casing, the cut surface of which is larger at the tip. , and a lock member is provided with a biasing force such that the protrusion protrudes, and when the battery unit is slidably engaged,
A biasing member is provided that gives the battery unit a tendency to move in a direction that releases this sliding engagement, and an opening whose cut surface is larger than the cut surface of the projection is provided on one surface of the battery unit facing the projection. A recess with a larger interior is provided, and when the battery unit is slidably engaged, the protrusion of the locking tool is temporarily retracted, and the recess and the protrusion of the locking tool are fitted, and when the battery unit is released from the sliding engagement, the protrusion of the locking tool is fitted. A lock structure for a battery unit configured to slide the battery unit to a position where the locking tool can be retracted, and retracting the protrusion of the locking tool from the recess to release the mating.