JP3163486B2 - Lid opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing device.

[0002]

2. Description of the Related Art Conventionally, in a public telephone, for example, a hinge of one or more axes has been used to open and close a lid body on a case body (Japanese Utility Model Publication No. 58-34026).

[0003]

However, in such a conventional hinged lid opening / closing apparatus, the number of articles is large, the structure is complicated, the assembling work is complicated, and the dimensional accuracy of the case body or the lid is poor. In many cases, the edges of the case main body and the lid do not accurately match in the closed state, and adjustment of this alignment during assembly is extremely troublesome.

An object of the present invention is to provide a cover opening / closing device which solves such problems.

[0005]

In order to achieve the above object, a lid opening / closing device according to the present invention provides a casing having an open front side.
Place the lid with the back side open on the case body in front of the case body.
The opening on the front side and the opening on the rear side of the lid
The case body and the lid are fitted and closed, and the lid is closed.
From the case body to release the mated state.
The lid body on one of the left and right side plates of the lid body.
With a lid opening / closing device that opens the lid by rotating
And moved upward with a locking arm with locking projections
In this state, the lock plate supporting the lid
By the key operation from outside inside the side plate of the cover
It is provided so as to be able to move up and down, and when the lid is closed,
The locking portion for locking the locking protrusion so as to be immovable in the front-rear direction.
Provided inside the side plate of the case body, and closed
Move the lock plate upward from the state
Release the locking projection of the locking plate from the locking portion.
And pull the lid forward a predetermined distance from the case body.
In the state where it is put out, the lid is opened at a predetermined angle in the opening direction.
The support arm that supports the locking arm so as to be rotatable within the range,
It protrudes forward from the opening on the front side of the case body.
Provided in the case body as described above, when closing the lid
Are the opening on the front side of the case body and the rear side of the lid
The case body and the lid are fitted by
The lock plate down by key operation.
To move the locking projection of the lock plate to the
When the cover is opened by locking with the locking part , key operation is
Therefore, the lock plate is moved upward to lock the lock plate.
Release the lock between the locking projection of the lock plate and the locking portion
And pulls the lid forward a predetermined distance from the case body.
Then, the locking arm of the lock plate is
Supporting the lid with the lock plate
In this state, the lid is centered on the locking arm.
It is characterized in that the body is rotated .

[0006]

With this configuration, in the lid opening / closing device of the present invention, the lock plate is moved upward by key operation to release the lock between the lock arm of the lock plate and the lock portion on the main body side. The lock is released, the lid is pulled out forward, the locking arm of the lock plate is supported by the support arm on the main body side, and the lid is rotated and opened from this pulled-out position.

[0007] To close the lid, the lid is turned in the opposite direction to return to the pulled-out position, pushed into the main body, and the lock plate is moved downward by key operation. It is locked by the locking portion on the main body side, and is locked with the lid closed to the main body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below.

FIGS. 1 to 6 show an embodiment of a cover opening / closing device of the present invention applied to a public telephone.

An edge plate 3 is attached to the inside of the peripheral portions of the side plates 2a, 2b, 2c, 2d on the top, bottom, left and right (in FIG. 1) of the cover 2 of the public telephone 1. The edge plate 3 and the cover The edge groove 5 into which the peripheral portions of the upper, lower, left, and right side plates 4a to 4d of the case body 4 fit between the upper, lower, left, and right side plates 2a to 2d.
Are formed (see FIGS. 5 and 6).

L-shaped supports 6 to 9 are fixed to the upper and lower portions of the left and right side plates 2c and 2d of the lid 2 by appropriate means such as screws. Notches 6b to 9b are provided on both sides of the tips of the horizontal portions 6a to 9a of these supports 6 to 9.

A lock plate 11 is attached to the upper and lower supports 6 and 7 on the left side so as to be vertically movable. That is, the lock plate 11 has inverted T-shaped guide holes 12 and 13 at the upper and lower portions of its base 11 ′, respectively, and the wide portions 12 a and 13 a at the lower ends of the guide holes 12 and 13 support the support members 6 and 7. Are set wider than the width of the horizontal portions 6a and 7a.

For this reason, the support members 6 are provided in the wide portions 12a, 13a at the lower ends of the guide holes 12, 13 of the lock plate 11.
7 by inserting the horizontal portions 6a, 7a and lowering the lock plate 11 at the positions of the notches 6b, 7b, thereby fitting the edges of the guide holes 12, 13 to the notches 6b, 7b of the supports 6, 7. By doing so, the lock plate 11 is attached to the supports 6 and 7 so as not to fall off and to be vertically movable.

Similarly, the horizontal portions 8a, 9a of the upper and lower support members 8, 9 are inserted into the wide portions 16a, 17a of the upper and lower guide holes 16, 17 of the base portion 15 'of the right lock plate 15. By lowering the lock plate 15 at the positions of the notches 8b and 9b, the lock plate 1
5 is attached so as not to fall off and to be vertically movable.

The left and right lock plates 11 and 15 are integrally connected by a connecting member 18 having an inverted L-shaped cross section in a horizontal direction screwed at bent portions 11a and 15a at the lower ends thereof. Both move up and down at the same time.

The left lock plate 11 has a base 11 '.
At the approximate center, two upper and lower projecting pieces 1 in the horizontal direction
9a and 19b are provided.

A key device 21 for operating a key by inserting a key from outside into a key hole 21a is provided substantially inside the center of the left side plate 2c of the lid 2. The key device 21 includes a key lever 2 which is rotated by an external key operation.
1b, and a roller 21c attached to the tip of the key lever 21b. The roller 21c is located between the two projecting pieces 19a and 19b of the lock plate 11.

For this reason, the state shown in FIG.
When the key lever 21b is rotated clockwise by a key operation from a state in which the lock plate 11 is lowered, the lock plate 11 is pushed up by the roller 21c as shown by an arrow in FIG. 2, and the right lock plate 15 is also pushed up at the same time. Can be Conversely, when the key lever 21b is rotated counterclockwise from the state of FIG. 2 by key operation, the two left and right lock plates 11, 15 move downward as shown in FIG.

The left and right lock plates 11, 15 have locking arms 11b, 11c, 15b, 15c protruding toward the case body 4 at both upper and lower ends of the bases 11 ', 15' (see FIGS. 5 and 6). As shown, the locking arms 11b, 11c, 1
5b and 15c protrude further toward the case body 4 than the edge of the lid 2. ), Locking arms 11b, 11c, 15b,
At the tip of 15c, a locking projection 1 protruding downward is provided.
1d, 11e, 15d, and 15e are provided.

As shown in FIG. 3, the bottom plate 4e of the case body 4
Lock holes 2 for locking the upper and lower locking projections 11d and 11e of the left lock plate 11 are provided above and below the left end of the lock plate 11, respectively.
Hooks 22, 23 having 2a, 23a are fixed by appropriate means such as screwing. That is, the hooks 22, 2
3, horizontal portions 22c and 23c project from the lower ends of the mounting portions 22b and 23b, respectively, and vertical portions 22d and 23d are in contact with the ends of the horizontal portions 22c and 23c.
The notches 22e, 23e provided from 2c, 23c to the upper part of the vertical portions 22d, 23d form the locking holes 22a, 23a.

The width of the locking holes 22a, 23a is slightly larger than the thickness of the locking projections 11d, 11e of the lock plate 11, and the horizontal distance between the mounting portions 22b, 23b and the vertical portions 22d, 23d is Locking projections 11d, 11
e is set slightly larger than the width in the front-rear direction.

Accordingly, the lid 2 is closed by fitting the edge of the case 4 into the edge groove 5 of the lid 2 in the case 4, and the lock plate 11 is moved downward by key operation as shown in FIG. , Upper and lower locking projections 11d of the lock plate 11, 1
1e is a locking hole 22 of the upper and lower locking members 22, 23, respectively.
a, 23a, the lower and upper and lower horizontal portions 11b ', 11c' of the locking arms 11b, 11c rest on the bottoms of the notches 22e, 23e of the vertical portions 22d, 23d. The lock state becomes almost impossible.

As shown in FIG. 3, the right lock plate 1
5 at the horizontal lower edge 15b 'of the upper locking arm 15b,
A fitting groove 25 is provided, and a step 26 is provided at the same position in the vertical direction as the fitting groove 25 at the horizontal lower edge 15c 'of the lower locking arm 15c.

On the upper and lower right ends of the bottom plate 4e of the case body 4, upper and lower locking projections 15 of the right lock plate 15 are provided.
Hooks 28 and 29 having locking holes 28a and 29a for locking d and 15e are fixed by appropriate means such as screws. That is, as shown in FIGS. 3 and 5, horizontal portions 28c and 29c project from the lower ends of the attaching portions 28b and 29b of the hooks 28 and 29, and vertical portions 28d and 29d project from the distal ends. And the horizontal portion 28c,
Notches 28e, 29e are provided from 29c to the upper ends of the vertical portions 28d, 29d. Furthermore, the hook 2
From the right end of each of the mounting portions 28b, 29b, the lid 2
Side plates 28f, 29f are provided in the direction, and locking holes 28a, 29a are formed between the side plates 28f, 29f and the notches 28e, 29e.

The width of the locking holes 28a, 29a is slightly larger than the thickness of the locking projections 15d, 15e of the lock plate 15, and the horizontal distance between the mounting portions 28b, 29b and the verticals 28d, 29d is Locking projections 15d, 15
e is set slightly larger than the width in the front-rear direction.

Therefore, as shown in FIG. 1, when the lid 2 is closed on the case body 4 and the lock plate 15 is moved downward by key operation, the upper and lower locking projections 1 of the lock plate 15 are moved.
5d and 15e are fitted in the locking holes 28a and 29a of the upper and lower hooks 28 and 29, respectively, and the horizontal lower edges 15b 'and 15c' of the locking arms 15b and 15c are vertically aligned with the vertical portions 28d and 29, respectively.
It is in a state of resting on the bottom of the notches 28e and 29e of d.

As shown in FIGS. 4 and 5, the side plates 28f and 29f further extend toward the lid 2, and support arms 28g and 29g which are bent leftward from the front end thereof. ing. The positions of the support arms 28g and 29g are set in the fitting grooves 25 of the lock plate 15 with the locking projections 15d and 15e of the lock plate 15 fitted in the locking holes 28a and 29a as shown in FIG. And the step 26.

As shown in FIGS. 3 and 5, the side plates 28f,
Notches 28h, 29h are provided from the front end of 29f to the support portions 28g, 29g, and the bottom surfaces 28h ', 29
The height of h 'is set slightly lower than the height of the lower edges 15b', 15c 'of the locking arms 15b, 15c when the lock plate 15 is unlocked by raising the lock plate 15 shown in FIG. The notch 28 in the side plate portions 28f, 29f
The horizontal distance between the vertical end surfaces 28h "and 29h" of the h and 29h (see FIGS. 5 and 6) and the back surface of the support portions 28g and 29g on the bottom plate 4e side is set slightly larger than the thickness of the lock plate 15.

The side plates 28f of the hooks 28, 29
From the upper end of 29f, stoppers 28k and 29k that are bent to the left are provided in order to regulate the ascending position when the lock plate 15 is raised by key operation as shown in FIG.

FIG. 1 shows a state in which the lid 2 is closed and locked to the case main body 4, and the side plates 4 a to 4 d of the case main body 4 are inserted into the edge grooves 5 (see FIG. 5) of the side plates 2 a to 2 d of the lid 2. 4d, the upper and lower locking projections 11d and 11e of the left lock plate 11 are engaged with the locking holes 22 of the locking members 22 and 23.
a, 23a, the upper and lower locking projections 15d, 15e of the right lock plate 15 fit into the locking holes 28a, 29a of the locking members 28, 29, and the upper and lower fitting of the lock plate 15. The locking state is such that the supporting arms 28g and 29g of the hooks 28 and 29 are fitted in the groove 25 and the step 26.

The lid 2 is opened as follows. First,
As shown in FIG. 2, the key lever 21b is rotated clockwise by a key operation from the outside of the side plate 2c of the lid 2, and the left lock plate 11 is pushed upward by the roller 21c. At the same time, the right lock plate 15 connected by the connecting member 18 is also pushed upward and stopped by the stoppers 28k and 29k.

When the lock plates 11 and 15 are moved upward, the lower ends of the locking projections 11d, 11e, 15d and 15e of the left and right lock plates 11 and 15 are locked by the locking holes 2a.
2a, 23a, 28a, and 29a are pulled upward, and
The support arms 28g and 29g of the hooks 28 and 29 come out of the fitting groove 25 and the step 26 of the right lock plate 15.
(That is, the left and right locking projections 11d, 11e, 15d, 15
e is located above the bottoms of the notches 22e, 23e, 28e, 29e, and the lower edges 15b ', 15c' of the locking arms 15b, 15c of the right lock plate 15 are supporting arms 28g, 29g. Notch 28h, bottom surface 28h of 29h
h 'and 29h'. )

From this state, as shown in FIGS.
Is pulled out forward, the lower edges 15b ', 15c' of the locking arms 15b, 15c of the right lock plate 15
8g, 29g notch 28h, bottom surface 28h 'of 29h,
29h ', the locking projections 15d, 15
Pull out until e comes into contact with the supporting arms 28g and 29g. 3 and 5, the upper and lower locking arms 15b and 15c of the right lock plate 15 are supported by the upper and lower hooks 28 and 29 of the case body 4.
By being supported by g, the lid 2 is supported.

When the force for rotating the lid 2 from the state shown in FIGS. 3 and 5 is applied as shown in FIGS.
8, 29 support arms 28g, 29g notches 28h, 29
h, the lower edges 15b ', 15c' of the locking arms 15b, 15c of the lock plate 15 slide on the bottom surfaces 28h ', 29h', and one surface of the locking arms 15b, 15c of the lock plate 15 becomes side plate portions 28f, 29f. Contact the notch 28h, 29h of the vertical end surface 28h ", 29h" of the
5e is stopped in a state where one surface thereof is in contact with the back surfaces of the support arms 28g and 29g, and is in a state of being opened substantially 90 °.

3 and 5 and FIGS.
In the opened state and the intermediate state, the lid 2 can be lifted and removed from the case body 4. By further extending the stoppers 28k, 29k forward (to a position near the support arm 28g in FIG. 5), the lid 2
Can be removed only when it is opened at 90 degrees.

In order to close the cover 2, it is rotated in the opposite direction from the state shown in FIGS. 4 and 6 to the state shown in FIGS. 4 and the key lever 21b is rotated counterclockwise by a key operation from this state, so that the lock plate 1
When the members 1 and 15 are moved downward, the lock plates 11 and
The 15 locking projections 11d, 11e, 15d, 15e fit into the locking holes 22a, 23a, 28a, 29a, and the right locking members 28, 29 fit into the notches 25, 26 of the right lock plate 15. The supporting arms 28g and 29g of the
The lock state is fitted to the step portion 26, so that it cannot be pulled out or rotated forward.

Although the embodiment of the present invention has been described above, it is needless to say that the lid opening and closing device of the present invention can be variously modified in the configuration of each part.
The attachment of the cover 15 to the cover 2 can be performed by any other method that can be moved up and down. The lock plate 11 on the left side is omitted, and the case body 4 and each side plate 4 of the cover 2 are simply provided on the left side.
c and 2c may be locked so that the right lock plate 15 can be directly moved up and down by a key operation. In addition, although the description has been given of the opening and closing of the cover of the public telephone as an example, the present invention is not limited to this, and it is needless to say that the present invention can be applied to the opening and closing of any other cover.

[0038]

As described above, in the lid opening / closing apparatus of the present invention, a lock plate having a locking arm is provided on the lid so as to be vertically movable by an external key operation, and the lid is provided on the case body. In a state where the locking arm is locked in a closed state, and the lock plate is moved upward to release the locking between the locking arm and the locking portion of the lock plate, And a supporting arm for rotatably supporting the locking arm to a predetermined angle in a state where the lid is pulled out from the case body by a predetermined distance, so that the lid can be used without using a hinge as in the related art. Can be rotated to open and close, which reduces the number of parts and simplifies the structure.In addition, to close the lid, rotate the lid back from the open position to the original drawer position, Body and lid It is possible to align the edges accurately,
It is not necessary to adjust the alignment at the time of assembling as in the case of using the conventional hinge, and the assembling work is remarkably easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a closed state of a lid according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a lock plate has been moved upward from the state of FIG. 1;

FIG. 3 is a perspective view showing a state in which a lid is pulled forward from the state of FIG. 2;

FIG. 4 is a perspective view showing a state where the lid is rotated from the state shown in FIG. 3;

FIG. 5 is a horizontal sectional view of a main part in the state of FIG. 3;

FIG. 6 is a horizontal sectional view of a main part in the state of FIG. 4;

[Explanation of symbols]

 2 Lid 3 Edge plate 4 Case body 4e Bottom plate 11 Lock plate 11b, 11c Lock arm 11d, 11e Lock protrusion 12, 13, Guide hole 15 Lock plate 15b, 15c Lock arm 15d, 15e Lock protrusion 16, 17 Guide hole 18 Connecting material 19a, 19b Projecting piece 21 Key device 21c Roller 22, 23, 28, 29 Hook 22a, 23a, 28a, 29a Locking hole 25 Fitting groove 26 Step 28f, 29f Side plate 28g, 29g Support arm 28h, 29h Notch 28k, 29k Stopper

Claims (1)

(57) [Claims] (1)The rear side is open on the case body with the front side open.
Opening the lid body, the opening on the front side of the case body and the lid
Match the opening on the back side of the body with the case body and the front
The cover is fitted and closed, and the cover is
To the front to release the fitted state, and to the left of the lid
The lid is rotated on one side plate on the right side to
A lid opening and closing device that opens the body, It has a locking arm with a locking projection and moves upward.
And a lock plate supporting the lid,
Up and down movement by the key operation from outside is inside the side plate.
Established in the When the lid is closed, the locking projection is
The locking portion that locks immovably on the side of the case body
The lock is provided inside the plate and is closed from the closed state.
Move the plate upward to remove the lock plate
Release the locking between the locking projection and the locking portion and move the lid forward.
The case is pulled out a predetermined distance from the case body.
Can rotate within the range of a predetermined angle in the direction in which the lid opens.
A supporting arm for supporting the locking arm in front of the case body.
The case book so that it protrudes forward from the opening on the front side
In your body, When closing the lid, open the front side of the case body.
The mouth and the opening on the rear side of the lid
The main body and the lid are fitted together, and the key
Move the lock plate downward to remove the lock plate
The locking projection is locked to the locking portion, When opening the lid, the lock
The rate is moved upward to lock the lock plate.
Release the locking between the locking piece and the locking portion, and remove the lid
Pull the case out of the case body a predetermined distance and
The lid is supported by supporting the locking arm of the rate with the support arm.
In the state supported by the lock plate,
In this case, the lid is rotated around the locking arm.
Characterized by Lid opening and closing device.