JPH0452938Y2 - - Google Patents

Description

[Detailed Description of the Invention] The opening/closing device for the battery compartment of the electronic device of the present invention will be explained according to the following items.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem that the invention attempts to solve E. Means for solving the problem F. Example a. Tape cassette recorder [Fig. 1, 2
Figures, Figures 5, and 6] b Battery storage recess [Figures 1, 3, and 4] c Opening/closing lid [Figures 1 to 4] d Attaching the opening/closing lid to the support shaft [ [Fig. 3] e Operation of the opening/closing lid [Fig. 4] f Cassette lid [Figs. Regarding switchgear. Specifically, the present invention aims to provide a novel opening/closing device for a battery storage section of an electronic device that is easy to install and is less likely to be lost.

(B Summary of the invention) The opening/closing device for the battery compartment of the electronic device of the present invention has an opening/closing lid for opening and closing the battery housing recess, and a connecting piece thereof is formed on one side edge of the battery housing recess through a slit formed therein. It is removable from the support shaft, which improves the workability of installing the opening/closing lid.
This reduces the risk of loss.

(C. Prior Art) Batteries are used as a driving source in electronic devices such as portable radios, tape recorders, and stereo cassette tape players, but it is inconvenient if the battery housing recess is left open, so the battery is generally The storage recess is provided with an opening/closing lid.

In many cases, the conventional opening/closing lid provided in the battery storage recess is removed from the housing when the battery storage recess is opened for battery replacement.

(Problem D is intended to be solved by the invention) By the way, if the opening/closing cover is removed from the housing when replacing the battery, there is a risk that it will be lost. In particular, since batteries are replaced relatively frequently, electronic devices often end up with no opening/closing device for their battery compartments while the device still has a sufficient lifespan.

In order to prevent loss, it is possible to attach the opening/closing lid to the housing so that it can rotate freely, but in order to do so,
It is necessary to fix the support shaft, which is the axis of rotation, to the housing by inserting it into the support hole provided in the opening/closing lid, and work that requires movement from multiple directions at once is difficult. This is extremely inefficient.

(E. Means for Solving Problems) The opening/closing device for the battery compartment of the electronic device of the present invention was created to solve the above-mentioned problems, and is provided on the side of the battery housing recess in the opening/closing lid. A connecting piece is formed to be connected to the supporting shaft, and the connecting piece is provided with a slit whose width increases due to elasticity and an engaging recess located inside the outer end of the slit, The shaft is passed through the engagement recess while expanding the slit, and the coupling piece is rotatably coupled to the support shaft.Also, when the opening/closing lid is fully opened, it will not rotate any further; The coupling piece is designed to come off the support shaft when attempting to rotate it.

Therefore, according to the present invention, unless the slit is expanded to separate the coupling piece from the support shaft, the opening/closing cover remains attached to the battery housing recess, and there is no risk of it being lost. In addition, since the connection between the support shaft and the connecting piece is made through a slit, it is sufficient to attach it to the housing of the support shaft in advance and then connect the connecting piece of the opening/closing lid to the support shaft. Installation workability becomes extremely good. Further, the limit of rotation of the opening/closing lid is regulated, and even if an attempt is made to rotate the opening/closing lid any further, the connecting piece will come off the support shaft, so the opening/closing lid will not be damaged.

(F. Embodiment) Details of the opening/closing device for the battery storage section of the electronic device of the present invention will be described below with reference to the illustrated embodiment.
The illustrated embodiment is an application of the present invention to an opening/closing device for a battery compartment of a tape cassette recorder.

(a tape cassette recorder) [Fig. 1, 2
Figures 5 and 6] In the figures, 1 is a tape cassette recorder, and 2 is its outer casing.

The outer casing 2 is formed from an upper body 3 and a lower body 4.

(b Battery storage recess) [Figures 1, 3, and 4] 5 is a battery storage recess, which is formed to open from the bottom surface to the rear surface of the outer casing 2, and its formation position is on one side. It is said to be located close to The opening 6 facing the outside of the battery storage recess 5 is located in the lower body 4.
It is formed by cutting out a rear part of the upper body 3 and a lower part of the upper body 3.

Reference numerals 7 and 7 designate notches formed on both sides of the edge 8 on the upper body 3 side of the opening 6;
A support shaft 9 insert-molded in is exposed across these notches 7, 7.

Reference numeral 10 denotes an internal wall that limits the inside of the battery storage recess 5, which is integrally formed with the upper body 3 and has a substantially L-shaped cross section. Reference numeral 11 denotes an internal wall provided so as to be continuous with the lower end surface of the internal wall 10, and is integrally formed with the lower body 4.

Reference numeral 12 denotes an engagement notch formed at the upper end edge of the internal wall 11 formed in the lower body 4.

Incidentally, each of the bodies 3 and 4 is made of synthetic resin.

(c Opening/Closing Lid) [Figures 1 to 4] Reference numeral 13 denotes an opening/closing lid, which is made of synthetic resin and is integrally formed with a horizontal portion 14 and a vertical portion 15 at right angles to each other.

Reference numerals 16 and 16 designate connecting pieces projecting upward from the upper end of the vertical portion, and are formed with a slightly thick wall. The interval between the connecting pieces 16, 16 is the same as the interval between the notches 7, 7 formed in the outer casing 2, and the width of the connecting pieces 16, 16 is the same as the width of the notches 7, 7. is formed the same way.

The connecting pieces 16, 16 are formed with slits 17, 17 which are open at the tips and extend to the back. The slits 17, 17 are bent slightly outward from a position slightly before reaching the tip, and the opposing surfaces at this bending point are cut out in an arc shape to form the connecting pieces 16,
Engagement recess 18, 1 extending in a substantially columnar shape in the width direction of 16
8 is formed. Also, slits 17, 17
From the engagement recesses 18, 18 forming position to the tip 17a,
The portions 17b and 17b up to 17a are the tips 17a,
It is arranged to expand as it goes to 17a. The width of the slits 17, 17 is the width of the support shaft 9.
The tip 17 is smaller than the outer diameter of the
a, 17a, the width is slightly larger than the outer diameter of the support shaft 9. Further, the inner diameter of the engaging recesses 18, 18 is formed to be approximately the same as the outer diameter of the support shaft 9.

Thus, the connecting pieces 16, 16 of the opening/closing lid 13 are formed with slits 17, 17, so that the inner and outer parts 19, 19 and 20, 20 can be bent with each other. There is.

Reference numeral 21 designates an engaging pawl piece that protrudes forward from the upper side of the end surface of the horizontal part 14 of the opening/closing lid 13 on the side opposite to the vertical part, and an engaging pawl 22 is formed protruding from the lower surface of the tip thereof. The forming claw 22 has an inclined surface 23 at its tip end, and the engaging claw piece 2 is continuous with the inclined surface 23.
An engagement surface 24 substantially perpendicular to the extending direction of
is formed.

(d. Attachment of the opening/closing lid to the support shaft) [FIG. 3] Therefore, the opening/closing lid 13 is attached to the support shaft 9 in the following manner.

That is, first, the enlarged tips 1 of the slits 17, 17 formed in the connecting pieces 16, 16 of the opening/closing lid 13 are opened.
7a, 17a on the support shaft 9 (see FIG. 3A). Therefore, the support shaft 9 is relatively connected to the slit 17,
When the opening/closing lid 13 is pushed toward the support shaft 9 toward the back of the opening/closing lid 17, the pushing force causes the inner portions 19, 19 of the coupling pieces 16, 16 and the outer portion 2
0 and 20 are bent away from each other, thereby expanding the width of the slits 17 and 17, and the support shaft 9 can move toward the back of the slits 17 and 17 (see FIG. 3B). Then, when the opening/closing lid 13 is further pushed in, the support shaft 9 is moved into the engaging recesses 18, 18.
(see FIG. 3C), whereby the opening/closing lid 13 is rotatably supported by the support shaft 9.

(e Operation of the opening/closing lid) [Figure 4] The opening/closing lid 13 attached to the support shaft 9 as described above
When it is closed, the engaging claw piece 21 protruding from the tip of the horizontal part 14 is inserted into the engaging notch 12 formed in the inner wall 11 of the lower body 4, and the engaging claw piece 21 engaging claws 22 are engaged with the inner edge of the engaging notch 12 (see FIG. 4A), thereby maintaining the open/close lid 13 in a closed state.

When opening the opening/closing lid 13, the horizontal part 14
When the portion of the engaging claw piece 21 that is close to the base is pressed inward, the horizontal portion 14 is bent and the engaging claw piece 2
1 moves slightly upward, and the engaging surface 24 of the engaging claw 22
is in a state where it is misaligned with the inner edge of the engagement notch 12 (see Fig. 4B), so if the opening/closing lid 12 is rotated in the opening direction while maintaining this state, the battery storage recess 5 will be opened. (See Figure 4C).

Note that when the opening/closing lid 13 is fully opened, the outer surfaces of the outer parts 20, 20 of the connecting pieces 16, 16 of the opening/closing lid 13 are aligned with the edges 7a of the notches 7, 7 formed in the outer casing 2.
7a, further rotation of the opening/closing lid 13 is prevented, and the rotation limit of the opening/closing lid 13 is defined (see FIG. 4C).

However, even if the opening/closing lid 13 reaches its rotational limit, an unreasonable force may still be applied in the rotational direction. In such a case, the connecting pieces 16, 16
As shown in FIG. 4D, the outer parts 20, 20 of the slits 17, 17 are bent as shown in FIG. be done.

(f Cassette Lid) [Figs. 5 to 7] In the tape cassette recorder 1 described above, the opening and closing of the battery storage recess 5 is also necessary when attaching the cassette lid 27, which opens and closes the cassette mounting recess 26 into which the tape cassette is mounted. A structure similar to that for attaching the lid 13 is adopted.

Numerals 28 and 28 are coupling pieces that project downward from the rear end of the cassette lid 27, and these coupling pieces 28 and 28 have slits 29 and 29 that open at their lower ends and extend upward. Approximately cylindrical engaging recesses 30, 30 are formed near the tips of the slits 29, 29.

Then, the engagement recesses 30 of the slits 29, 29,
30 to the tips 29a, 29b,
Reference numeral 29b is an expanded portion whose width increases toward the tips 29a, 29a.

The inner diameter of the engaging recesses 30, 30 is approximately the same as the outer diameter of the support shaft 9, the width of the slits 29, 29 is smaller than the outer diameter of the support shaft 9, and the width of the slits 29, 29 is smaller than the outer diameter of the support shaft 9.
The width of the tips 29a, 29a of the support shaft 9 is formed to be slightly larger than the outer diameter of the support shaft 9.

Thus, the connecting pieces 28, 28 have slits 29,
29 by inner part 31,31 and outer part 3
2, 32, and each of these parts 31, 31
and 32, 32 can be bent.

33, 33 are the outer parts 3 of the connecting pieces 28, 28
This is a blindfold plate that is connected from the opposite sides of No. 2 and No. 32.

34, 34 are notches formed downward from the rear upper edge of the upper body 3;
The above-mentioned support shaft 9 is exposed so as to traverse the interior of the support shaft 4. The interval between the notches 34, 34 is determined by the connecting piece 2 formed on the cassette lid 27.
The formation interval is the same as that of 8 and 28, and
The width of each notch 34, 34 is made substantially the same as the width of the blind plates 33, 33.

Then, the tips 29a, 29a of the slits 29, 29 formed in the connecting pieces 28, 28 provided on the cassette lid 27 are applied to the support shafts 9 exposed in the notches 34, 34 (see Fig. 7A). Then, when the rear edge of the cassette lid 27 is pushed toward the support shaft 9, the inner parts 31, 31 and the outer parts 32, 32 of the coupling pieces 28, 28 are bent, and the slits 29, 2 are bent.
9 is expanded (see FIG. 7B), and the support shaft 9 enters into the engagement recesses 30, 30 and engages therewith (see FIG. 7C).
7 is rotatably supported by a support shaft 9.

If the cassette lid 27 is also supported by engagement with the support shaft 9 in this way, the cassette lid 27
This makes it easier to install the battery storage recess 5.
The support shaft of the opening/closing lid 13 and the support shaft of the cassette lid 27 can be made common, which reduces both the number of parts and the number of assembly steps, contributing to cost reduction.

(G. Effects of the invention) As is clear from the above description, the opening/closing device for the battery compartment of the electronic device of the present invention has two parts sandwiched between one ridgeline of the approximately rectangular outer casing of the electronic device main body. The battery storage recess is connected to the battery storage recess by an opening/closing lid having a substantially L-shaped cross section and rotatably attached to one of the two side surfaces of the battery storage recess formed across the side surface. The opening/closing device includes a plurality of connecting pieces connected to a support shaft disposed on one side of the two side surfaces of the outer casing on one end side of the opening/closing lid. The coupling piece has a slit open to the outside and a cylindrical engagement recess provided inside the outer end of the slit, and the inner diameter of the engagement recess is equal to the outer diameter of the support shaft. The width of the slit is substantially equal to the diameter of the support shaft, and the width of the slit is smaller than the outer diameter of the support shaft, and at least a portion of the connecting piece where the slit is formed is provided with elasticity, so that the elasticity of the connecting piece of the support shaft is utilized. is engaged with the engagement recess through the slit and rotatably supported on the support shaft, and the other end side of the opening/closing lid has an engaging member formed on the other of the two side surfaces. An engaging protrusion is formed that engages with the mating portion to lock the opening/closing lid in a state in which the battery storage recess is closed, and the opening/closing lid contacts an edge of the battery storage recess when the opening/closing lid is fully opened. As a result, further rotation is restricted, and when further force is applied in the rotation direction, the width of the slit in the coupling piece widens, causing the coupling piece to come off the support shaft.

Therefore, according to the present invention, unless the slit is expanded to separate the coupling piece from the support shaft, the opening/closing cover remains attached to the battery housing recess, and there is no risk of it being lost. In addition, since the connection between the support shaft and the connecting piece is made through a slit, it is sufficient to attach the support shaft to the housing in advance and then connect the connecting piece of the opening/closing lid to the support shaft. Installation workability becomes extremely good. Further, the limit of rotation of the opening/closing lid is regulated, and even if an attempt is made to rotate the opening/closing lid any further, the connecting piece will come off the support shaft, so the opening/closing lid will not be damaged.

[Brief explanation of the drawing]

The drawing shows an example of an implementation in which the opening/closing device for the battery compartment of an electronic device according to the present invention is applied to the opening/closing device for the battery compartment of a tape cassette recorder.
The figure is a perspective view showing the tape cassette recorder's outer casing and the opening/closing lid separated, FIG. 2 is a perspective view of the opening/closing lid in a closed state, and FIG. 4 is an enlarged sectional view of essential parts showing the opening/closing operation of the opening/closing lid, FIG. 5 is a perspective view showing the outer casing of the tape cassette recorder and the cassette lid separated, and FIG. 6 is the cassette lid. FIG. 7 is an enlarged sectional view of essential parts showing the operation of attaching the cassette lid. Explanation of symbols, 1...Electronic device main body, 2...Outer casing, 5...Battery storage recess, 7a...Edge, 9...Support shaft, 12...Engaged part, 13...Opening/closing lid, 16
... Connecting piece, 17 ... Slit, 18 ... Engagement recess, 21 ... Engagement protrusion.

Claims (1)

[Claims for Utility Model Registration] One of the two side faces of the battery storage recess formed across two side faces of the substantially rectangular outer casing of the main body of the electronic device across one ridge line. The device opens and closes the battery storage recess with an opening/closing lid having a substantially L-shaped cross section that is rotatably attached to one side surface, wherein one end of the opening/closing lid has the outside. A plurality of connecting pieces are formed to be connected to a support shaft disposed on one side of the two side surfaces of the case, and the connecting pieces are connected to a slit opened to the outside and an outer end of the slit. a cylindrical engagement recess provided at an inner position, the inner diameter of the engagement recess is approximately equal to the outer diameter of the support shaft, and the width of the slit is smaller than the outer diameter of the support shaft. At least a portion of the connecting piece in which the slit is formed is provided with elasticity, and the support shaft is rotatably supported on the support shaft by engaging with the engagement recess through the slit using the elasticity of the connecting piece. The other end of the opening/closing lid is engaged with an engaged portion formed on the other of the two side surfaces to lock the opening/closing lid in a state in which the battery storage recess is closed. When the opening/closing lid is fully opened, the opening/closing lid comes into contact with the edge of the battery storage recess, thereby restricting further rotation and further rotating in the rotation direction. An opening/closing device for a battery storage section of an electronic device, wherein when a force is applied, the width of the slit of the coupling piece expands and the coupling piece comes off from the support shaft.