JPH0533766Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a set screw support device, and particularly to a set screw support device for a battery case.

[Prior art] A conventional battery case is shown in attached figures 8 and 9.
As shown in the figure. A cover 3 that rotates about a hinge pin 2 is attached to a case body 1 made of resin so as to be openable and closable. A battery terminal plate 4 and a coil type terminal 5 are mounted on both sides of the inside of the case body 1 so as to face each other. This terminal plate 4 is held in a terminal groove 6 provided within the case body, and a lead wire 7 is soldered to an end 4a of the terminal plate 4. on the other hand,
The end portion 5a of the coil terminal 5 extends to the vicinity of the center portion, and a lead wire 8 is soldered to the end portion 5a. Further, a set screw 9 is attached to the substantially central position of the case body 1, and one end portion 9a of the set screw 9 is fitted into the locking groove 10 of the engaging piece 10.
a, and the other end of the set screw 9 is provided with a male screw 9b. It is inserted through and protrudes toward the upper surface side of the case body 1. One side of the knurled knob 9c provided at the intermediate portion of the set screw 9 projects into the opening K on the back surface of the case body 1.

There are insertion holes 11, 1 on both sides of the set screw 9.
1 is opened and contact pins 12, 12 are inserted therethrough. Storage portions 13, 13 having rectangular recesses are provided inside the case body 1 of the insertion holes 11, 11. The contact pin 12 is provided with an expanded stepped portion 12a, and the lead wires 7 and 8 are soldered to the end portions 12b of the contact pin 12, respectively, and a coil spring 14 is attached to the end portions 12b. It is stored in the storage section 13 with a . The contact pin 12 is pressed toward the upper surface of the case body 1 by the bias of the coil spring 14, and the stepped portion 12a of the contact pin 12 is locked on the lower surface of the insertion hole 11. Furthermore, the claws 15a, 15a of the partition plate 15 are fitted into the fitting holes 16, 16 on the upper surface of the case body 1, and the partition plate 15 is removed.
is fitted inside, and one end 9a of the setscrew 9 is pressed against the locking groove 10a by the partition plate 15.
After that, a battery (not shown) is attached between the terminal plate 4 and the coil terminal 5 of the case body 1, and the cover 3 is closed.
will be closed.

When the conventional battery case formed as described above is connected to an electronic device such as a cassette player, a contact pin (not shown) on the electronic device side presses and contacts the tip portion 12c of the contact pin 12. At this time, the contact pin 12 maintains a state of elastic contact with the contact pin on the electronic device side by the bias of the coil spring, and supplies power to the electronic device side.

[Problem to be solved by the invention] In the conventional battery case described above, when attaching the set screw 9 to the case body 1, it is necessary to insert the male thread 9b of the set screw 9 from the inside of the case body 1 into the insertion hole H. and temporarily place one end 9a of the set screw 9 into the locking groove 10a of the engagement piece 10. Thereafter, the partition plate 15 is fitted and one end 9a of the set screw 9 is pressed against the partition plate 15. Therefore, the one end 9a
The support strength of the screw 9 may become weak, and the set screw 9 may play due to the gap between the engagement piece 10 and the partition plate 15.

Therefore, a technical problem arises that must be solved in order to easily and quickly assemble the set screw into the case and to reliably support the set screw, and the present invention aims to solve this problem. With the goal.

[Means for Solving the Problems] This invention was proposed to achieve the above object, and is provided with a slanted structure at approximately the center of the front plate of the case body from the top of the case body toward the bottom plate. The provided insertion hole is drilled, and one end of the insertion hole on the bottom plate side is approximately U-shaped parallel to the surface of the bottom plate.
A male threaded portion protruding from one side of the set screw is loosely fitted into the one end of the insertion hole so that its tip protrudes to the outside of the front plate. , a locking piece is provided on the inside of the case body and stands upright in parallel with the front plate, and the locking piece is located on the side opposite to the insertion hole of the front plate, and has an end portion thereof. extends to the open surface of the one end of the insertion hole, and has a groove formed in the end in substantially the same shape as the substantially U-shaped one end of the insertion hole. furthermore, the other end of the shaft of the set screw, which protrudes from the open end of the groove on the side opposite to the male threaded part of the set screw, can be inserted and loosely fitted into the groove. furthermore, the set screw is provided with a knurled knob at an intermediate position thereof;
The board is inserted into the area defined by the front plate and the locking piece in proximity to the knurled knob, and the end face of the knurled knob is configured to protrude into a slit-shaped opening in the bottom plate. Further, when the substrate is inserted into the region, the region can be covered with a cover, and a notch is provided at approximately the center of the cover, and the notch is configured such that one end surface can close an opening of a substantially U-shaped groove provided in the locking piece,
When the other end of the shaft of the set screw is locked in the three directions of the upper and lower surfaces and the back surface of the U-shaped groove of the locking piece,
The present invention proposes a set screw supporting device characterized in that the set screw is supported by closing the U-shaped groove at one end surface of the notch provided in the cover. be.

[Function] This device has an insertion hole provided diagonally on one side of the case, so when installing the set screw, first insert the male threaded part of the set screw into this insertion hole, and then push the male threaded part out to the outside of the case. Make it stand out. A locking piece is provided inside the case, and the other end of the set screw is loosely fitted into a U-shaped groove formed in the locking piece. Thus, the set screw is locked in three directions except for the open part of the groove, and furthermore, by attaching the cover, the open part of the groove is closed on one side thereof.

Thus, the other end of the set screw is reliably supported by the locking piece of the case and the cover, and play can be prevented from occurring.

[Embodiment] Hereinafter, an embodiment of this invention will be described in detail with reference to FIGS. 1 to 7 of the attached drawings. For convenience of explanation, conventionally known technical matters will also be explained at the same time. 1 to 3 show a battery case used in a tape player or the like, and a cover 22 which rotates about a hinge pin 21 is attached to a case body 20 made of resin so as to be openable and closable. A locking piece 23 is provided near the center of the cover 22 to protrude inward, and as shown in FIG. 2, when the cover 22 is rotated in the direction of arrow , case body 2
The locking piece 23 is inserted into the locking hole 24 drilled on the upper surface of the
are formed so that the cover 22 is locked to the case body 20 when the cover 22 is fitted into the case body 20. The locking piece 23 and the locking hole 24 can be unlocked by pulling out the cover 22 in the direction of the arrow Y in FIG. Therefore, the engagement can be easily removed.

As shown in FIG. 3, an insertion hole is formed at approximately the center of the front plate 20a of the case body 20 from the top of the case body 20 toward the bottom plate 20b (from the lower right to the upper left in FIG. 3). 26 is opened. Furthermore, one end 26a of the insertion hole 26 on the bottom plate 20b side
is opened in a substantially U-shape parallel to the surface of the bottom plate 20b. Therefore, the right side of the U-shaped end portion 26a is open in FIGS. 3 and 6. Moreover, a male threaded portion 27a protruding from one side of a set screw 27, which will be described later, is inserted from the lower right end of the insertion hole 26 in FIG. It is configured such that it is loosely fitted into one end portion 26a of the letter shape, and its tip portion can be projected to the outside of the front plate 20a.

Moreover, the front plate 2 is provided inside the case body 20.
Locking pieces 29 are erected on the bottom plate 20b at regular intervals in parallel with 0a. Moreover, the locking piece 29 is provided so as to be located on the opposite side to the insertion hole 26 opened in the front plate 20a, and its end portion is at least connected to the open surface of the one end portion 26a of the insertion hole 26. A groove 29a is formed in the end portion to have a substantially same shape as the U-shaped one end portion 26a of the insertion hole 26.
It is set up in opposition to the Further, the set screw 2 is provided to protrude from the open end (right side in FIG. 7) of the groove 29a to the side opposite to the male threaded portion 27a of the set screw 27.
Insert the other end 27c of the shaft No. 7 into the other end 27c.
is constructed so that it can be loosely fitted into the groove 29a.

Further, the set screw 27 has two knurling knobs 27b, 27b arranged in series at an intermediate position thereof, and a board 28 is inserted between the knurling knobs 27b, 27b. Therefore, the board 28 is inserted into the area P defined by the front plate 20a and the locking piece 29. At this time, as shown in FIGS. 3 and 6, the end surfaces of the knurled knobs 27b, 27b protrude outward from the slit-shaped openings 30, 30 made in the bottom plate 20b, and the protrusions are touched by the tip of the finger. It is configured so that it can be connected to an electronic device such as a cassette player by rotating the male screw portion 27a of the set screw 27.

Conventionally, a wall body corresponding to the locking piece 29 of the present invention was not provided within the case body.
The set screw can be simply inserted from the upper end of the vertical groove of the L-shaped insertion hole and slid into the horizontal groove, but in the present invention, a set screw is used to form the U-shaped groove 29a. Since the locking piece 29 is provided, when inserting the set screw 27 into the one end 26a of the insertion hole 26, the insertion hole 26 must be inserted so that the knurled knob 27b of the set screw 27 does not collide with the locking piece 29. A hole is provided diagonally on the front plate 20a. Thus, the set screw 27 is inserted into the one end 26a of the insertion hole 26.
can be inserted smoothly into the

Furthermore, when the substrate 28 is inserted into the region P,
The area P is covered with a cover 44. Therefore, the cover 44 covers the capacitor 40 on the right side in FIG.
Although the cover 44 of the region P is extended and integrally formed so as to cover the capacitor 40, the cover 44 may be separate from the cover of the capacitor 40. Further, on the region P side of the cover 44, a substantially central portion of the side plate 44b of the cover 44 is cut out, and one end surface 44a of this cutout portion is connected to the U-shaped portion provided on the locking piece 29. The opening of the groove 29a (the right side in FIG. 7) is constructed so as to be able to be closed. In this way, the set screw 2 protrudes on the side opposite to the male threaded portion 27a of the set screw 27.
The other end 27c of the shaft of No. 7 is locked in the three directions of the upper and lower surfaces and the back surface of the U-shaped groove 29a of the locking piece 29, and at the same time, the cover 44
The open part of the U-shaped groove 29a is closed with one end surface 44a of the notch provided in the set screw 2.
The other side surface of the other end 27c of the screw 7 is supported, so that the set screw 27 is reliably supported and no looseness occurs.

On the other hand, seats 3 are located on both sides of the set screw 27.
1, 31 are provided, and contact pins 33, 33 are inserted into the insertion holes 32, 32 drilled in the seats 31, 31.
is inserted. One end 33a of this contact pin 33 is loosely inserted between guide ribs 34, 34 arranged in parallel in the case body 20, and the top 35 of the one end 33a is connected to a contact piece 36 fixed to the substrate 28. is pressed against.

Here, in FIGS. 3 to 5, the substrate 2
8 will be explained. FIG. 4 shows the bottom side of the board 28, with a U-shaped notch 3 approximately in the center.
7 is opened, and notches 38a and 38b are provided on the same side edge. The notch 37 is provided to prevent the board 28 from coming into contact with the shaft between the knurled knobs 27b, 27b of the set screw 27 when the board 28 is installed inside the case body 20.
Further, contact pieces 3 are provided in the notches 38a and 38b.
6 and 36 are attached, and this contact piece 36 is formed of an elastic material and is bent in an inverted F-shape when viewed from the side. Furthermore, the contact piece 36
A warped portion 36a is formed at the tip of the holder 36a in the direction of the lower surface (downward in FIG. 5). Then, a coil type terminal 39 is provided on the left end of the board 28, its base 39a is fitted onto the board 28, and a capacitor 40 and a terminal 41 are fitted on the right end of the board 28.
Each component is soldered on the upper surface side of the board 28. In addition, in FIG. 4, the wiring pattern 42 on the top side
is shown by a dotted line.

Next, the support portion of the set screw 27 will be further explained. FIG. 6 is a view taken along the line B--B in FIG. 1 showing the top side of the set screw 27. FIG. Therefore, in the figure, the bottom plate 20b is shown above the front plate 20a. Therefore, as shown in the figure,
To attach the set screw 27 to the case body 20, first insert the male threaded part 27a of the set screw 27 into the right end of the insertion hole 26 from the inside to the outside of the front plate 20a. Attach the tip to the front plate 20
Make it protrude from the outer surface of a. After that, the insertion hole 2
The male threaded portion 27 of the setscrew 27 along the slope of 6
a to the left and move it to the one end 26a of the insertion hole 26. At this time, the knurled knob 27 provided at the middle part of the male threaded portion 27a
b, 27b do not collide with the front plate 20a and the locking piece 29, so the set screw 27 can be inserted smoothly. In this way, the other end 27c of the set screw 27 fits into the groove 29a of the locking piece 29 protruding inside the case body 20, and the other end 27c
7c is locked in three directions: the upper and lower surfaces and the inner surface of the groove 29a.

After that, as shown in FIG.
While the terminal 41 is narrowly inserted between the holding plates 43a, 43a provided therein, the board 28 is partitioned by the front plate 20a, the locking piece 29, and an extension line of the locking piece 29. Insert into area P,
Further, the region P is covered with a cover 44 made of resin. Furthermore, as shown in FIG. 3, the claws 45, 45 on the upper side of the cover 44 fit into the fitting holes 46, 46 of the front plate 20a, and the claws 47 on the lower side of the cover 44 fit into the fitting holes 46, 46 of the front plate 20a. As shown in FIG. 7, the locking piece 29
The cover 44 is fixed by fitting into a fitting hole 48 provided in the cover 44 . Therefore, the side plate 44 of the cover 44
One side 44a of the notch provided in b is the locking piece 2.
The open portion (right side in FIG. 7) of the groove 29a provided in the groove 9 is closed.

In this way, the other end 27c of the set screw 27 fits between the groove 29a of the locking piece 29 and the one side surface 44a of the cover 44.
The rotation operation of the set screw 27 can be performed smoothly, and rattling of the set screw 27 can also be suppressed. Further, in this embodiment, since the two stages of knurling knobs 27b, 27b are arranged in series, the board 28 can be inserted and attached between the knurling knobs 27b, 27b, and the notch 37 can be made small so that the board 28 can be attached. This prevents the strength from decreasing.

[Effects of the invention] As detailed in the above embodiment, this invention has an insertion hole diagonally provided on one side of the case, which makes it extremely easy to install a set screw, and the set screw can be inserted at one end of the insertion hole. The male threaded part of can be rotated stably. Then, loosely fit the other end of the set screw into the U-shaped groove provided on the end face of the locking piece installed inside the case, and then open the groove with one side of the notch provided on the cover. By closing the portion, the other end portion of the set screw can be locked from four directions, and the set screw can be reliably supported.

In this way, the work of assembling the set screw can be performed more easily and quickly than in the conventional type, and this invention can also contribute to cost reduction.

Note that this invention can be modified in various ways as long as it does not depart from the spirit of the invention, and it goes without saying that this invention extends to such modifications.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the present invention, and FIG. 1 is a partially cutaway plan view with the front plate shown on the top and the case cover opened; 2 is a partially cutaway side view of the same part, FIG. 3 is a front view of the same, FIG. 4 is a bottom view of the board, FIG. 5 is a sectional view taken along line D-D in FIG. 7 is a view taken along the line C--C in FIG. 1. 8 and 9 show a conventional example, with FIG. 8 being a partially cutaway front view of a conventional battery case, and FIG. 9 being a plan view thereof. 20... Case body, 26... Insertion hole, 26a
...One end, 27... Set screw, 27a... Male thread, 27c... Other end, 29... Locking piece, 29
a...U-shaped groove, 44...cover, 44a...
One aspect.

Claims (1)

[Scope of utility model registration request] An insertion hole 26 is formed in the approximate center of the front plate 20a of the case body 20, and the insertion hole 26 is diagonally provided from the upper side of the case body 20 toward the bottom plate 20b side. One end 26a
is opened in a substantially U-shape parallel to the surface of the bottom plate 20b, and the one end 26a of the insertion hole 26
A male threaded portion 27 protrudes from one side of the set screw 27.
a is loosely fitted and its tip protrudes to the outside of the front plate 20a, and a locking piece 29 is provided inside the case body 20 and erected parallel to the front plate 20a, and , the locking piece 29 is located on the opposite side of the insertion hole 26 of the front plate 20a, and its end is connected to the one end 26a of the insertion hole 26.
A groove 29a that extends to the open surface of the insertion hole 26 and has a substantially same shape as the substantially U-shaped one end 26a of the insertion hole 26 is provided at the end thereof, facing the one end 26a of the insertion hole 26. Further, the other end 2 of the shaft of the set screw 27 is provided to protrude from the open end of the groove 29a to the side opposite to the male threaded portion 27a of the set screw 27.
7c can be inserted and loosely fitted into the groove 29a, and furthermore, the setscrew 27 is provided with a knurled knob 27b at an intermediate position thereof, and the base plate 28 is placed close to the knurled knob 27b in the front plate 20a.
The knurled knob 27b is inserted into the region P defined by the locking piece 29, and the end surface of the knurled knob 27b is inserted into the slit-shaped opening 30 in the bottom plate 20b.
The area P
When the substrate 28 is inserted therein, the region P can be covered with the cover 44,
In addition, a notch is provided at approximately the center of the cover 44, and one end surface 44a of the notch is configured to close the opening of the approximately U-shaped groove 29a provided in the locking piece 29. The other end 27 of the shaft of the set screw 27
When the cover 4 is locked in the three directions of the upper and lower surfaces and the back surface of the U-shaped groove 29a of the locking piece 29, the cover 4
4. A set screw supporting device characterized in that the set screw 27 can be supported by closing the U-shaped groove 29a with one end surface 44a of the notch provided in the set screw 27.