JP2908294B2 - Lock structure of sub battery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure of a sub-battery of an apparatus having a main battery and a backup sub-battery in an information input / output terminal device such as a portable terminal or an electronic organizer having a memory function.

[0002]

2. Description of the Related Art Conventionally, the mounting structure of this type of sub-battery is
Insert the sub-battery into the back side of the device, insert the sub-battery into it, and attach and fix the sub-battery cover with a screw or a snap fit claw using the elasticity of plastic so as to cover the sub-battery from above. Was. In this configuration, the sub-battery and the main battery have no relation to each other in their detached state, and are mounted at independent positions,
By simply removing the sub-battery cover covering the sub-battery, the sub-battery can be freely and easily removed and replaced.

[0003]

The sub-battery has the role of retaining memory when the main battery is exhausted or removed for replacement. In the above-described conventional mounting structure of the sub-battery, since there is no relationship with the main battery, if the sub-battery is carelessly removed in a state where the main battery is exhausted or the main battery is removed, the memory is cleared. There was a risk of being done. In order to avoid this, at present, we are careful to replace the sub battery after confirming that the main battery is set, but it may cause a situation where the memory is accidentally cleared There was a problem.

An object of the present invention is to provide a lock structure for a sub-battery in which the memory is not likely to be cleared due to the erroneous attachment / detachment of the battery as described above.

[0005]

SUMMARY OF THE INVENTION A lock structure of a sub-battery according to the present invention comprises a main battery, a sub-battery that holds a memory when the main battery is removed and is covered by a cover that can be opened and closed, A lock mechanism is provided which locks the sub-battery so that the sub-battery cannot be removed when the main battery is not mounted, in conjunction with the presence or absence of mounting.

In this lock structure for a sub-battery, the lock mechanism has a first lock piece for locking the attachment and detachment of the sub-battery and a second lock piece for locking the opening and closing of the cover. A plate, a lock lever that acts to lock or unlock the rotation of the lock plate in conjunction with the presence or absence of the main battery, and a second lever that urges the lock lever in a direction to lock the lock plate. A first lock member for locking the sub-battery and a second lock member for locking the cover when the lock plate is rotated when the lock is released. It is preferable that the lock pin includes a lock pin and a second spring member for urging the lock pin in a direction for locking the lock plate.

As described above, the lock structure of the sub-battery of the present invention is related to the state of whether or not the main battery is mounted, and the sub-battery is covered only when the main battery is mounted. It has a lock function that allows the sub-battery cover to be removed. Further, another lock function is provided so that the sub-battery is not easily removed even when the sub-battery cover is removed, and also has a role of preventing the sub-battery from falling off.

[0008]

Next, the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which (a)
Is a longitudinal sectional view showing the overall configuration, (b) and (c) are a plan view and a transverse sectional view showing the sub-battery housing section, and FIG. 2 is a plan view showing the operation (a) to (c) of the lock plate sequentially. FIG. 3 is a longitudinal sectional view showing another embodiment of the present invention.

The configuration of the embodiment of the present invention is as follows. As shown in FIG.
The main battery 1 stored in the main battery 1 and the sub-battery 5 for holding the memory when the main battery 1 is removed for charging or replacement are stored in the storage recess 11b different from the position of the main battery 1. Have been. The sub-battery 5 is covered with a sub-battery cover 6 that can be freely opened and closed. One side of the sub-battery cover 6 is inserted into the housing 11, and the other side is pressed and held by the lock pieces 9 of the lock plate 3.

A substantially disk-shaped lock plate 3 is rotatably connected to the housing 11 of the main body, and locks the opening / closing of the sub-battery cover 6 and the attachment / detachment of the sub-battery 5, respectively.
It has two lock pieces 9 and 10 and rotates. One end of the lock lever 2 is located on the side of the storage recess 11 of the main battery 1 and detects whether or not the main battery 1 is mounted, and according to the state, the other end enters the lock plate 3 to perform a lock and unlock function. Work to do. A coil spring 4 that urges the lock plate 2 in a direction to lock the lock plate 3 is hooked on the lock lever 2, thereby performing the movement.

There are two lock pins 7, both of which are integrated with a leaf spring 8 which urges the lock plate 3 in the locking direction, and which is attached to the housing 11 at a position where it can enter the lock plate 3. When the lock plate 3 is rotated by the lock lever 2 when the main battery 1 is mounted and the lock lever 3 is unlocked, the position of the two lock pieces 9 and 10 is adjusted by opening and closing the sub-battery cover 6. The battery 5 is provided so as to be restricted to two detachable positions.

In the present embodiment having such a configuration,
An initial state in which the main battery 1 is not mounted and the sub-battery cover 6 is closed is as follows.

The lock lever 2, which functions to lock the lock plate 3 in conjunction with the presence or absence of the main battery 1, enters the lock plate 3 by the urging force of the coil spring 4 and locks because the main battery 1 is not mounted. doing. Similarly, as shown in FIG. 2A, the lock pin 7 also enters the hole 3a of the lock plate 3 by the urging force of the leaf spring 8 and performs a lock function. The sub-battery cover 6 is locked by one lock piece 9 of the lock plate 3, and the sub-battery 5 is also pressed and locked by the other lock piece 10 of the lock plate 3. Thus, the lock plate 3 is configured to be double locked by the row lever 2 and the lock pin 7.

Next, the operation of removing the sub-battery 5 after mounting the main battery 1 will be described.

When the main battery 1 is set in the storage recess 11a of the housing 11, the main battery 1 pushes one end of the lock lever 2 in the direction of arrow A against the coil spring 4. As a result, the leading end of the lock lever 2 comes off the lock plate 3 so that the first-stage lock of the lock plate 3 is released. When the main battery 1 is set, the first-stage lock of the lock plate 3 by the lock lever 2 is released. To remove the sub-battery cover 6 covering the sub-battery 5, rotate the lock plate 3 It is only possible by doing this.

To rotate the lock plate 3, the second
It is necessary to depress the lock pin 7, which is the locking means of the step, to remove it from the lock plate 3. The lock pin 7 is movable by the urging force of the leaf spring 8. The lock plate 3 rotates in two steps in the direction of arrow B as shown in FIG. 2, and the lock piece 9 holding the sub-battery cover 6 comes off at the first rotation position shown in FIG. The battery cover 6 can be removed.

At the first stage rotation position, another lock pin 7 enters the hole 3a of the lock plate 3, and the lock plate 3 is locked again. In this position, another lock piece 10 of the lock plate 3 still holds the sub-battery 5. Similarly, when the lock pin 7 is pressed down and the lock plate 3 is rotated to the second stage position shown in FIG. 2C, the lock piece 10 of the lock plate 3 comes off the sub-battery 5 and the sub-battery 5 is removed. It can be removed.

In this manner, the sub-battery 5 can be removed and replaced only after the main battery 1 is mounted. In this state, a new replacement sub-battery 5 is stored in the storage recess 11b, and the lock plate 3 is rotated back to the position shown in FIG. As a result, both the main battery 1 and the sub-battery 5 are mounted, and a normal use state is established. Here, if only the main battery 1 is removed, the initial state as described above is obtained.

FIG. 3 shows another embodiment of the present invention. A lock lever 12 having a structure different from that of the lock lever 2 in the above-described embodiment is provided, and the lock lever 1 is perpendicular to the setting direction of the main battery 1 (arrow A direction).
2 moves against the urging force of the coil spring 4 to lock or unlock the lock plate 3 in the first stage by the lock lever 12. Lock pin 7
The locking action of the second stage by the leaf spring 8 is the same as in the above-described embodiment.

[0021]

As explained above, the present invention relates the movement of the sub-battery cover and the lock plate holding and fixing the sub-battery to the state of whether or not the main battery is mounted on the device. By using a double lock mechanism that cannot move the lock plate when the battery is not mounted, it becomes impossible to remove and replace the sub battery when the main battery is not mounted,
This has the effect of eliminating the problem of accidentally clearing memory data.

As a secondary effect, the situation in which the sub-battery is suddenly dropped immediately after the sub-battery cover is removed can be eliminated by the two-step rotating means of the lock plate.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment of the present invention, in which FIG. 1A is a longitudinal sectional view showing an entire configuration, and FIGS. 1B and 1C are a plan view and a transverse sectional view showing a sub-battery accommodating portion.

FIGS. 2A to 2C are plan views sequentially showing the operation of the lock plate according to the embodiment. FIGS.

FIG. 3 is a longitudinal sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main battery 2,12 Lock lever 3 Lock plate 4 Coil spring 5 Sub battery 6 Sub battery cover 7 Lock pin 8 Leaf spring 9,10 Lock piece 11 Housing 11a, 11b Storage recess

Claims (3)

(57) [Claims] 1. A main battery, a sub-battery that holds a memory when the main battery is removed and is covered by a cover that can be opened and closed, and a state where the main battery is not mounted in conjunction with the presence or absence of the main battery. And a lock mechanism for locking the sub-battery so that it cannot be removed. The lock mechanism includes a first lock piece for locking the attachment and detachment of the sub-battery and a second lock piece for locking the opening and closing of the cover. A lock plate that rotates with a lock lever that acts to lock or unlock the rotation of the lock plate in conjunction with the presence or absence of the main battery, and a lock lever that locks the lock plate. A first spring member for urging the lock lever; a position of the first lock piece for locking the sub-battery when the lock plate is rotated when the lock is released; A sub-battery comprising: a lock pin for regulating the position of the second lock piece for locking the cover; and a second spring member for urging the lock pin in a direction for locking the lock plate. Lock structure. 2. The lock structure according to claim 1, wherein the first spring member is a tension coil spring. 3. The sub-cell lock structure according to claim 1, wherein the second spring member is a leaf spring.