JPS607512Y2 - small electronic equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention includes a device body having a cabinet consisting of a pair of upper and lower cabinet halves, and a shaft support of the pair in a hole formed in one of the pair of cabinet halves. The present invention relates to a small electronic device including a locking member which is inserted and rotatably supported by a rotational urging means in one of the cabinet halves in the pair of shaft supports.

2. Description of the Related Art Conventionally, a locking member has been attached to the body of a small electronic device, such as a portable small radio receiver, so that the device can be attached to clothing or the like and carried.

In conventional small electronic devices of this type, for example, a single rod-shaped support shaft is attached to the cabinet of the main body of the device, and a locking member is attached to be rotatable around this support shaft, and a spring or The plate-shaped locking member is rotationally biased toward the cabinet by a biasing means such as a leaf spring.

However, when assembling the above-mentioned small electronic devices, the work of inserting a rod-shaped support shaft into a pair of shaft insertion holes provided in the cabinet and the locking member, and the work of attaching the biasing means are performed separately. This assembly work was troublesome.

In addition, in the past, the structure of the urging mechanism for the locking member has not been devised much, and it is easy for the locking member to become loose due to repeated use.

Further, since an excessive load is applied only to a specific portion of the rotational urging means of the locking member, there is a high risk that the rotational urging means may stop working or be damaged in some cases.

The present invention was devised in view of the above-mentioned actual situation, and it is easy to attach the locking member to the cabinet, especially the attachment of the support shaft that rotatably supports the locking member, and it is long. The present invention provides a small electronic device using a rotary energizing means configured to be able to withstand use for a long period of time.

An embodiment in which the present invention is applied to a small portable radio receiver will be described below with reference to the drawings.

As shown in FIG. 1, the cabinet 1 of the radio receiver body is made of an upper half 1a and a lower half 1 made of synthetic resin, for example.
It is composed of b.

In the upper half 1a of the cabinet 1, there is an opening 2 in which, for example, a display unit that displays the tuning frequency using a scale plate and a pointer, an indicator lamp that displays the receiving status of stereo broadcasting, etc., and a power on/off switch are arranged. Openings 3 to 5 are formed in which a knob, a stereo/monaural switching knob, and a pair of jacks are arranged, respectively.

On the other hand, a battery storage section 7 and a locking member mounting section 8 are integrally formed in the lower half 1b of the cabinet 1, and a locking member 9 is attached to the mounting section 8 by means of a rotational biasing means 10 as described below. It is installed as shown.

Here, the configuration of the mounting portion 8, the locking member 9, and the urging means 10, and the mounting state of the locking member 9 will be described.

First, the mounting portion 8 is provided with a pair of elongated holes 12a, 12b extending along the same straight line.
A pair of semi-cylindrical bearing portions 15a and 15b are provided at each end in the longitudinal direction of b.

A pair of groove portions 13a, 13b are formed in the intermediate portions of the pair of elongated holes 12a, 12b in a direction substantially orthogonal to the longitudinal direction thereof.

Further, on the edge 14 side of the lower half 1b, a pair of protrusions 16a and 16b that protrude inside the cabinet 1 are integrally formed. A pair of protruding spring locking protrusions 17
a and 17b are integrally shaped.

Furthermore, the pair of elongated holes 12a are provided on the inner surface of the lower half 1b.
, 12b, and these elongated holes 12
An L-shaped spring locking protrusion 18 is integrally formed at a position offset from the straight line connecting a and 12b to the side opposite to the edge 14.

Further, the locking member 9 is made of a plate-shaped body made of synthetic resin, for example,
A pair of left and right U-shaped hanging pieces 20a and 20b facing each other are integrally molded at one end of the locking member 9.

As is clear from FIG. 1, these hanging pieces 20
Shaft insertion holes 21a and 21b are provided near the tips of the lower half 1b, respectively, and the hanging pieces 20a and 20b have a convex semicircular cross section provided on the back surface of the lower half 1b at the root. Recessed portions 38a, 38 corresponding to portions 37a, 37b
b is formed.

Furthermore, a pair of hanging pieces 20a. A pair of spring engagement plates 22 and 23 that extend in the left-right direction while facing each other are provided between the plates 20b.
is integrally molded.

On the other hand, the hanging piece 20at20 is attached to the other end of the locking member 9.
A bent portion 24 is formed to be bent toward the side opposite to b, and a non-slip protrusion 25 is formed on the back surface of this bent portion 24 (the surface facing the cabinet 1).

Furthermore, a plurality of sawtooth-shaped anti-slip protrusions 26 are integrally formed at approximately the middle portion in the longitudinal direction of the locking member 9 and at both left and right edges.

Further, the rotation urging means 10 for rotatably attaching the locking member 9 to the lower half 1b of the cabinet 1 is composed of first and second spring members 28 and 29 as shown in FIG. ing.

The first spring member 28 includes a pair of shaft portions 28b and 28c that extend substantially colinearly with each other, and a pair of shaft portions 28b and 28c that extend substantially colinearly with each other.
A pair of shaft portions 28b, 28 of the first spring member 28 extend from the U-shaped portion 28a connecting the two spring members 8b, 28c to each other.
c is configured to function as a support shaft of the locking member 9 as described later.

The above-mentioned shaft portion 28b. The lengths of the shaft portions 28c are different from each other, for example, the shaft portion 28c is configured to be shorter than the shaft portion 28b.

Further, the second spring member 29 has a pair of side portions each having winding portions 29 a and 29 b facing each other at an intermediate position, and an intermediate portion connecting these pair of side portions to each other. It is formed in an S-shape.

Then, by inserting the pair of shaft portions 28b, 28c of the first spring member 28 into the winding portions 29a, 29b of the second spring member 29, the pair of shaft portions 28b, 28
The first and second spring members 28 and 29 are coupled to each other with the pair of side portions of the second spring member 29 wound once around c.

The pair of shaft insertion holes 21a and 21b of the locking member 9 are rotatably supported by the pair of shaft portions 28b and 28c of the first spring member 28 with respect to the lower half 1b. 2 spring member 29 to the lower half 1b and the locking member 9
By respectively locking the locking member 9, the locking member 9 is biased in the direction of rotation toward the lower half 1b.

Next, a procedure for attaching the locking member 9 to the back surface of the lower half 1b of the cabinet 1 using the above-mentioned rotation urging means 10 will be explained.

First, the locking member 9 is moved from the lower side of the lower half 1b, and the U-shaped hanging piece 20a of the locking member 9 is moved.

20b and spring engaging plates 22 and 23 are inserted into the long holes 12a and 12b of the lower half 1b.The convex portion 37at of the lower half 1b is inserted.
37b and the recesses 38a and 38b of the locking member 9 are engaged with each other.

After that, the shaft portions 28b, 28c of the first spring member 28
The shaft insertion hole 21a of the hanging pieces 20a, 20b
, 21b, and the bearing of the lower half 1b is the part 15a.
.

15b, whereby the locking member 9
is attached to the lower half 1b in a freely rotatable state using the shaft portions 28b and 28c as support shafts.

Note that when installing the first spring member 28, for example, the long shaft portion 28b is inserted through the shaft insertion hole 21a, and the shaft portion 28 is held in a state where the bearing is supported by the portion 15. The character-shaped portion 28a is connected to the shaft portions 28b, 2
The shaft portion 28c is pinched in the axial direction of the shaft portion 8c to elastically deform it, and the shaft portion 28c is pulled toward the shaft portion 28b side.
can be inserted into the shaft insertion hole 21b of the hanging piece 20b, and then the shaft portion 28c is passed through the shaft insertion hole 21b by the elastic restoring force of the first spring member 28, and the bearing is supported by the portion 15b. let

On the other hand, the pair of arm portions 29c and 29d of the second spring member 29 rotatably attached to the first spring member 28 are
When the first spring member 28 is attached, it is inserted between the spring engagement plates 22 and 23 of the lower half 1b.

Thereafter, as shown in FIGS. 2 and 3, the base 28d of the U-shaped portion 28a of the first spring member 28 is locked to the L-shaped protrusion 18 of the lower half 1b using its elasticity. With,
The base portion 29e of the second spring member 29 is locked to the pair of spring locking protrusions 17a, 17b of the lower half 1b by utilizing its elasticity.

As a result, the arm portion 29c of the second spring member 29.

Since the tip of the locking member 9 contacts and presses the spring engagement plate 22 of the locking member 9, the locking member 9
The elastic restoring forces of the shafts 28b and 29d rotate counterclockwise in FIG. 3 about the shafts 28b and 28c.

Along with this, the protrusion 25 of the locking member 9 comes into contact with the back surface of the lower half 1b.

When attaching a small portable radio receiver configured in this way to clothing, such as a pants pocket or belt,
If a part of the place where the device body is to be attached is inserted between the locking member 9 and the back surface of the cabinet 1 (the outer surface of the lower half 1b), the locking member 9 will respond to the elasticity of the rotational biasing means 10. It rotates clockwise in Figure 3 against the restoring force,
Due to the elastic restoring force, the protrusions 26 of the locking member 9 bite into the clothes, etc., and the clothes etc. are held between them.

The clamping force due to the elastic restoring force at this time is the second spring member 2
9 winding part 29a.

29b and the arm portions 29c, 29d, as the locking member 9 moves forward, the shaft portions 28b, 28c of the first spring member 28 move as shown by the imaginary line in FIG. As shown, it is slightly elastically deformed to the side opposite to the protrusion 18.

As a result, the U-shaped portion 28a of the first spring member 28 is also elastically deformed as shown by the imaginary line in FIG.

Therefore, since the elastic restoring force of the first spring member 28 also contributes to the rotational force of the locking member 9, a sufficient clamping force can be obtained.

Note that if the locking member 9 is rotated excessively clockwise in FIG.
, the locking member 9 is prevented from rotating beyond a predetermined amount.

According to this barked portable small radio receiver,
Shaft portions 28b and 28c that effectively utilize the elasticity of the U-shaped portion 28a of the first spring member 28 to serve as a support shaft for the locking member 9.
Assembling the equipment is extremely easy.

Moreover, since the clamping force by the locking member 9 is obtained by utilizing not only the second spring member 29 but also the elastic restoring force of the first spring member 28, excessive load may be applied to a specific part, that is, the second spring member 28. It does not touch the winding portion 29at29b of the spring member 29 and the arm portions 29c and 29d.

As a result, the life of the energizing means 10 is extended, which is very advantageous in practice.

In addition, since the rotational biasing means 10 is constructed by combining the first and second spring members 28 and 29 as described above, the clamping force may decrease due to repeated use, and the locking member 9 may become loose. Not at all.

Although the present invention has been described above with reference to one embodiment, the present invention is not limited to this embodiment, and various modifications can be made based on the technical idea of the present invention.

For example, in this embodiment, the present invention is applied to a portable small radio receiver, but the present invention can be applied to various electronic devices such as a mini-cassette type tape recorder.

As described above, the present invention includes a device main body having a cabinet consisting of a pair of upper and lower cabinet halves, and a pair of shaft supports inserted into a hole formed in one of the pair of cabinet halves. and a locking member rotatably supported by a rotational urging means on one of the cabinet halves in a pair of shaft supports, wherein the rotational urging means includes a locking member rotatably supported by the one cabinet half. a first spring member for rotatably supporting the locking member; and a second spring member for biasing the locking member in a rotational direction toward the one cabinet half; Each of the spring members includes a pair of shaft portions extending in the same straight line, and a U-shaped portion connecting these pair of shaft portions to each other, and the second spring member includes A pair of side portions each having a winding portion facing each other at an intermediate position and an intermediate portion connecting these pair of side portions to each other form an S-3 shape, and the second spring member By configuring the pair of shaft portions of the first spring member to be inserted into the respective winding portions, the first and second spring members are coupled to each other, and the pair of shaft portions of the locking member are inserted into the respective winding portions. A pair of shaft supports are rotatably supported on the one cabinet half by the pair of shaft portions of the first spring member, and the second spring member is connected to the pair of cabinet halves and the locking member. By locking each member,
The locking member is configured to be biased in a rotating direction toward the pair of cabinet halves.

Therefore, according to the small electronic device of the present invention, by effectively utilizing the elasticity of the U-shaped portion of the first spring member as described above, the shaft portions at both ends of the first spring member can be connected to the locking member. Since it can be easily attached as a support shaft, the assembly work of the equipment becomes easier.

Further, since the rotation urging means for the locking member is constituted by the first and second spring members, there is no wobbling or the like, and a sufficient clamping force can be applied to the locking member.

[Brief explanation of drawings]

The drawings show an embodiment in which the present invention is applied to a small portable radio receiver, and FIG. 1 is an exploded perspective view showing the relationship between the radio receiver cabinet, biasing member, and locking member; FIG. 2 is a plan view with the upper half removed to show the locking member attached to the lower half of the cabinet by the biasing means, and FIG. 3 is a sectional view taken along the line ■--■ in FIG. 2. In addition, in the symbols used in the drawings, 1...cabinet, 9...locking member, 1o...rotation biasing means, 28... First spring member, 28a... U-shaped portion, 28b
*28c...Shaft part, 29...Second spring member, 29a, 29b...Wound part, 29c,
29d...This is an arm portion.

Claims (1)

[Scope of utility model registration request] A device main body having a cabinet consisting of a pair of upper and lower cabinet halves, and a pair of shaft supports inserted into a hole formed in one of the pair of cabinet halves, and in which one of the shaft supports is inserted into a hole formed in one of the cabinet halves. A small electronic device comprising a locking member rotatably supported by a rotational urging means on each of the cabinet halves, wherein the rotational urging means rotatably supports the locking member. a first spring member for;
a second spring member for biasing the locking member in a rotational direction toward the one cabinet half; The second spring member has a pair of side parts each having a winding part facing each other at an intermediate position thereof. , and an intermediate portion connecting these pair of side portions to each other form an S-shape, and the pair of shafts of the first spring member are connected to each winding portion of the second spring member. the first and second spring members are coupled to each other, and the pair of shaft portions of the locking member are connected to the pair of shaft portions of the first spring member. The locking member is rotatably supported by the one cabinet half, and by locking the second spring member to the pair of cabinet halves and the locking member, respectively. A small electronic device configured to be energized in the direction of rotation toward the cabinet half.