JPH0424820B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a portable radio communication device in which a battery case is detachable from the main body of the radio device, and more specifically, to a means for attaching and detaching the battery case.

[Conventional example]

Generally, in a portable radio communication device, a battery case is detachably attached to the main body of the radio device. The attachment/detachment method can be roughly divided into the slide lock type and the bionet lock type. That is, in the slide lock method, the joint surface of the battery case slides along the mounting joint surface of the radio main body, and the two are connected by a lock lever that moves with this operation. Locally, the bionet lock type has a male member and a female member that can be fitted into each other, and the locking mechanism is activated by fitting the two members and rotating them relative to each other at a predetermined angle. ing.

[Problem that the invention seeks to solve]

However, the common thing about both types is that electrical connection terminals are provided on the sliding joint surface, so if used repeatedly, the electrical and mechanical connection will become loose due to wear etc., and the durability will deteriorate. It has the disadvantage of being scarce. Furthermore, even if waterproofness is provided, if a waterproof packing such as an O-ring is placed between the sliding joint surfaces, wear will be severe as in the above case. For this reason, in some models, the electrical connection terminal is surrounded by multiple walls, but the structure is complicated and this requires considerable cost. Furthermore, the slide lock type requires considerable force to attach and detach, making it difficult to operate. On the other hand, the bionet lock type is easier to attach and detach than the slide lock type, but it rotates relatively easily due to an external impact and the electrical and mechanical connections are released. There is a risk of it being damaged.

This invention was devised in view of the above-mentioned drawbacks of the conventional technology, and its purpose is to provide a portable wireless device that is easy to operate, provides a strong connection, and is equipped with a detachable means that is also waterproof. The aim is to provide the opportunity.

[Means for solving problems]

In order to achieve the above object, the present invention provides a portable radio device comprising a radio device main body, a battery case attached to the radio device main body, and an attachment/detachment means for mechanically and electrically connecting both at the joint surface thereof. In the wireless communication device, the attachment/detachment means includes a male member formed on the battery case side joint surface and a female member formed on the radio device main body side joint surface, and the male member is fitted into the female member. The side wall of the projection is provided with an engaging groove and a waterproof O-ring, and the top wall of the projection is provided with a pair of power terminals. The female member has an opening corresponding to the protrusion, a lock mechanism that elastically engages with the engagement groove, and a release mechanism that releases the lock mechanism, and a bottom surface of the opening that contacts the power terminal. A connecting terminal is provided, and an annular rib is formed around the connecting terminal so as to be in contact with the O-ring.

[Effect]

When the protrusion is forcibly fitted into the opening, the engagement groove is elastically captured by the locking mechanism, thereby mechanically connecting the radio device body and the battery case. At the same time, since the O-ring is in close contact with the annular rib, the area around the power supply terminal and the connection terminal is almost completely sealed.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the accompanying drawings.

As shown in FIGS. 1 and 2, this portable radio communication device includes a radio device main body 1 containing a transmitting/receiving circuit, etc., and a battery case 2 that is detachably attached to the main body 1. . A male member 3 constituting one side of the attachment/detachment means is provided on the joint surface 2a of the battery case 2.
A female member 4 is provided on the joint surface 1a of the main body 1 of the radio.
Furthermore, guides 5, 5 and guide claws 6, 6 are provided on these joint surfaces 1a, 2a, respectively, for determining the direction of the battery case 2 when it is attached to the radio main body 1. In this embodiment, the guides 5, 5 are provided on the joint surface 1a side, and the guide claws 6, 6 are provided on the joint surface 2a side, but the arrangement may be reversed.

The female member 3 consists of a rectangular parallelepiped projection 7 having a predetermined width, length, and height. In this case, abacus bead-shaped tapered surfaces 8a, 8 are provided at both longitudinal ends of the projection 7.
Large-diameter cylindrical portions 9a and 9b each having a diameter b are connected to each other. Engagement grooves 10a and 10b are formed in each side wall of the cylindrical portions 9a and 9b. Power terminals 11, 11 are arranged at both ends of the top wall 7a of the protrusion 7. In this case, although not clearly shown in the drawing, each power terminal 11 is located at a position slightly recessed from the top wall 7a, that is, in a recess of a predetermined depth, in order to avoid inadvertent contact with external metal members, etc. It is exposed inside. Further, a waterproof O-ring 12 is attached to the side wall of the protrusion 7 between the top wall 7a and the tapered surfaces 8a and 8b.
is provided.

On the other hand, the female member 4 is provided with an opening 16 that fits into the projection 7. This opening 16 is actually formed in the end plate 15 forming the joint surface 1a. Referring to FIG. 3, a locking mechanism 17 for capturing the protrusion 7 is provided on the back side of the end plate 15, and a release mechanism 18 for releasing the locking mechanism 17 is provided on the female member 4 side. It is being

The lock mechanism 17 includes a pair of first engagement levers 2 that engage with an engagement groove 10a of one of the cylindrical portions 9a.
0 and 20, and a pair of second engagement levers 21 and 21 that engage with the engagement groove 10b of the other cylindrical portion 9b. The first engagement levers 20, 20 have a bell crank shape, and are each arranged on both sides of the opening 16 and are rotatably attached to the end plate 15 via shoulder bolts 22, 22. Similarly, the second engagement levers 21, 21 are rotatably attached to pins 23 arranged on both sides of the opening 16 and erected on the end plate 15. Note that, for convenience of drawing, only one pin 23 is shown in FIG. 3, and the other pin is not shown. The first engagement levers 20 and the second engagement levers 21, which are disposed on the same side of the opening 16, are connected to each other via a link bar 24 and rotated at the same time. That is, the link lever 24 is rotatably attached to the end plate 15 together with the first engagement lever 20 by the stepped bolt 22, but the link bar 24 is bored in the first engagement lever 20. A small hole 24a corresponding to the small hole 20a and a long hole 24b corresponding to the small hole 21a bored in the second engagement lever 21. 21
Headed connecting pins 25, 25 are inserted into the long holes 24a and 24b, respectively. In that case, end plate 1
5 is provided with arcuate slits 15a, 15b for regulating the rotational stroke of each engagement lever 20, 21, and each connecting pin 25, 25 is connected to the lower side (joint surface) of the end plate 15 in FIG. 1a side) through the arcuate slits 15a and 15b.
a, 24a, the small hole 21a, and the elongated hole 24b, respectively, and E washers 26, 26 for preventing removal are attached to the ends thereof.

Each connecting pin 25, 25 has stepped bolts 22, 2.
A spring means 27 having a spring fulcrum is attached to the part 2, and each set of the first and second engagement levers 20, 20; 21, 21 is normally biased to rotate in the closing direction. . In this embodiment, as shown in FIG. 3, the spring means 27 has two coil winding parts 27a, 27a formed of one spring steel wire, and each of the coil winding parts 27a, 27a to spring legs 27b, 27
Consisting of each b drawn in the tangential direction,
Stepped bolts 2 are attached to the coil winding portions 27a, 27a.
2 and 22 are inserted, and the free end sides of the spring legs 27b and 27b are engaged with the ends of the connecting pins 25 and 25.

Referring also to FIG. 4, the release mechanism 18
is an opening 30 formed in the side wall of the radio main body 1.
It is equipped with a push button 31 that can be freely attached to and retracted from. The back portion 31a of this push button 31 is formed so as to come into contact with the base side arms 20b, 20b of the first engagement levers 20, 20. In this case, back 3
A wing plate 32 extending left and right is connected to the lower end of 1a, and guide pins 32a,
32a is formed. In connection with this, guide pins 32a,
Guide grooves 34, 34 (fourth
(only one of which is shown in the figure) is provided. That is, the push button 31 is held in an appropriate position without tilting due to the guiding action of the guide pins 32a, 32a and the guide grooves 34, 34.

The inner partition wall 33 is provided with connection terminals 35, 35 corresponding to the power terminals 11, 11 on the battery case 2 side. And these connection terminals 35, 35
An annular rib 36 into which the protrusion 7 of the battery case 2 fits is formed around the annular rib 36 .

In addition, in FIG. 4, reference numeral 37 indicates the end plate 1.
This is a boss that serves as a screw holder when screwing 5 to the radio main body 1. In addition, as shown in FIG. 3, the free end side of each engagement lever 20, 21 is provided with a tapered surface 8a, 8b formed on the protrusion 7 side of the battery case 2 so that it can easily cross over the tapered surface 8a, 8b. A concave curved surface 38 in the shape of a boat bottom is provided respectively.

Next, the operation of the attachment/detachment means will be explained. first,
Taking as an example a state in which the battery case 2 is removed from the radio main body 1 as shown in FIG. 2, in this state the first engagement levers 20, 2
0 and the second engagement levers 21, 21 are connected to the spring means 2 through each pair of link bars 24 and connecting pins 25.
7, they are urged to rotate in a direction in which they are mutually closed. Accordingly, the push button 31 is held in a state protruding from the opening 30 by the base side arms 20b, 20b of the first engagement levers 20, 20.

When attaching the battery case 2 to the radio main body 1, the protrusion 7 can be forcibly pushed into the opening 16 of the radio main body 1. That is, by this pushing operation, each of the tapered surfaces 8a and 8b comes into contact with each free end side of the first engagement lever 20 and the second engagement lever 21, and pushes them open against the biasing force of the spring means 27. The first and second engagement levers 2
0 and 21 exceed the maximum diameter portions of the tapered surfaces 8a and 8b, each engagement lever 20 and 21 is moved by the spring means 2.
With the rotation urging force of 7, the projections 7 are engaged in the engagement grooves 10a, 10b of the cylindrical portions 9a, 9b, and the projections 7 are firmly captured. In the captured state, power terminals 11, 11
and the connection terminals 35, 35 are connected, and O
The ring 12 fits tightly within the annular rib 36, thereby ensuring waterproofing around the terminal connection area. In this case, since no strong sliding friction force is applied to the O-ring 12, it will not wear out prematurely, and even if it does wear out, it can be easily replaced.

On the other hand, in order to remove the battery case 2 from the radio main body 1, the push button 31 can be pushed into the main body 1. That is, by pushing the push button 31, the first engagement lever 2
0 and 20 are opened against the biasing force of the spring means 27, and at the same time the second engagement levers 20 and 21 are opened.
is also opened via the link bar 24, and the engagement groove 10
This means that a and 10b will be released. Therefore,
The battery case 2 can be easily removed.

〔effect〕

As is clear from the description of the embodiments described above, according to the present invention, the battery case can be inserted into the main body of the radio device by a so-called one-touch nimble pushing operation, without sliding or rotating the battery case as in the conventional case. Can be installed. Furthermore, during installation, the area around the power supply terminal is sealed with an O-ring, so it is highly waterproof and the life of the O-ring can be extended. Furthermore, by providing two sets of engagement levers and interlocking them with a link bar, various effects such as the ability to compactly integrate the locking mechanism and the release mechanism are achieved.

[Brief explanation of drawings]

The figures all relate to embodiments of the present invention; Figure 1 is a perspective view of the exterior with the battery case attached to the radio main body, and Figure 2 is a perspective view showing the radio main body and battery case separated. Figure, 3rd
FIG. 4 is an exploded perspective view showing a lock mechanism provided on the radio main body side, and FIG. 4 is a perspective view showing a release mechanism and a connecting terminal portion provided on the radio main body side. In the figure, 1 is the radio device body, 2 is the battery case, 3 is the male member, 4 is the female member, 5 is the guide hole, 6 is the guide claw, 7 is the protrusion, 8a, 8b are the tapered surfaces, 9a, 9
b is a cylindrical portion, 10a and 10b are engagement grooves, 11 is a power terminal, 12 is an O-ring, 15 is an end plate, 16 is an opening, 17 is a lock mechanism, 18 is a release mechanism,
20 is a first engagement lever, 21 is a second engagement lever,
24 is a link bar, 27 is a spring means, 31 is a push button, 32 is a wing plate, 33 is a partition wall, 33a is a guide pin, 34 is a guide groove, 35 is a connection terminal, 36
is an annular rib.

Claims (1)

[Claims] 1. A portable radio communication device comprising a radio device main body, a battery case attached to the radio device main body, and a detachable means for mechanically and electrically connecting the two at the joint surface thereof. In the above, the attachment/detachment means includes a male member formed on the battery case side joint surface and a female member formed on the radio device main body side joint surface, and the male member has a protrusion that fits into the female member. The side wall of the protrusion is provided with an engaging groove and a waterproof O-ring, and the top wall of the protrusion is provided with a pair of power terminals. It has an opening that corresponds to the protrusion, a lock mechanism that elastically engages with the engagement groove, and a release mechanism that releases it, and a bottom surface of the opening that contacts the power terminal. A connecting terminal is provided, and an annular rib is formed around the connecting terminal so as to be in contact with the O-ring, and the protrusion is forcibly fitted into the opening. The power supply terminal and the connection terminal are electrically connected in a state in which the engagement groove is captured by the lock mechanism and sealed by the O-ring. Portable wireless communication device. 2. The portable radio communication device according to claim 1, wherein the protrusion has a conical tapered surface connected to the engagement groove. 3. In claim 1, the locking mechanism includes two locking mechanisms disposed on both sides of the back surface of the opening.
A portable radio communication device having a pair of first and second engagement levers, the first and second engagement levers being operatively connected by a ring bar. 4. The portable wireless communication device according to claim 1 or 3, wherein the locking mechanism includes a spring means for rotationally biasing each of the engagement levers in a closing direction. 5. The portable radio communication device according to claim 3, wherein the first engagement lever is a bell crank-shaped lever, and a proximal arm thereof is operatively connected to a release mechanism. 6. In claim 1 or 5, the release mechanism has a push button that is drilled in the main body of the radio and is attached to the opening so as to be retractable, and the engagement levers of the lock mechanism are moved together by the pressing action of the push button. Portable radio communicator opened. 7. The portable wireless communication device according to claim 6, wherein the push button is integrally formed with a wing plate extending in a direction perpendicular to the direction in which the push button is pressed. 8. The portable radio communication device according to claim 7, wherein a guide means consisting of a guide pin and a guide groove is formed between the wing plate and the partition wall of the radio device main body. 9. The portable radio communication device according to claim 1, wherein a guide claw and a guide hole are provided between the joint surface of the radio device main body and the joint surface of the battery case for regulating the attachment method. 10. The portable wireless communication device according to claim 1, wherein the power terminal is exposed in a recess of a predetermined depth formed in the top wall surface of the protrusion.