JPH08307074A - Cover body opening spring loading mechanism for apparatus having cover body - Google Patents

Abstract

PURPOSE: To load a spring for urging a cover body in the opening direction easily and surely in an apparatus fixed with an opening/closing cover body. CONSTITUTION: A hooked protrusion 7 for temporarily stopping the arm part 5A on one side of a spring 5 at the time of fixing a cover body 3 is provided on the apparatus body 1 side and a protrusion 8 for pressing the arm part 5A of spring 5, upon closure of the cover body 3, to release the arm part 5A from the temporary stop protrusion 7 is provided on the cover body 3 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for easily and surely mounting a spring for opening a lid in a device having a lid.

[0002]

2. Description of the Related Art For example, a lid that opens and closes a cassette mounting portion of a cassette tape recorder and a lid that opens and closes a CD mounting portion of a CD (compact disc) player are given a force in the opening direction by a spring.

The structure of a conventional device having a lid of this type is shown in FIG. In the figure, 1 is a device body, and this device body 1
Storage recessed in (eg, cassette or CD mount)
A lid 3 is rotatably attached so as to open and close 2. The lid 3 is rotatably supported by a protruding shaft 4 provided on the device body 1 side so as to be openable and closable.

A spring (torsion coil spring) 5 is mounted between the lid body 3 and the device body 1, and the force of the spring 5 always urges the lid body 3 in the opening direction.

Explaining the mounting process of the spring 5, first, as shown in FIG. 2, the shaft holes 3a, 3b provided in the side plate pieces 3A, 3B projecting from the left and right sides of the base end of the lid 3 are shown. To
By fitting the protrusion shafts 4 (only one of the protrusion shafts is shown in the drawing) protruding to face the left and right inner side surfaces of the housing portion 2 of the device body 1, the lid body is attached to the device body 1. 3 is attached so that it can be freely opened and closed.

Next, as shown in FIG. 3, with the lid 3 opened, the spring 5 is attached to the spring support piece 6 projecting from the bottom surface of the housing 2 of the device body 1 at a position corresponding to the protruding shaft 4. Install.
Here, the spring 5 is inserted between the lid body 3 and the device body 1 in a state in which the angle between the arm portion 5A on one end side and the arm portion 5B on the other end side is reduced by hand, and the coil portion 5C is inserted. The spring support piece 6 is engaged and attached.

Then, as shown in FIG. 1, the arm portion 5A on one end side
To the inner surface side of the lid body 3 and the arm portion 5B on the other end side to abut and lock with the bottom surface of the housing portion 2 of the device body 1, respectively. The force is applied, and the lid body 3 is constantly biased in the opening direction with respect to the device body 1.

However, with such a structure, it is very difficult to mount the spring, and the spring may be deformed during the mounting work.

Therefore, in order to improve this, a structure as shown in FIG. 4 is considered. This is shown in FIG.
In addition to the structure shown in FIG. 3, a hook-shaped temporary fixing protrusion 7 for temporarily fixing the arm 5A on one end side of the spring 5 when the lid 3 is attached is provided on the device body 1 side.

That is, in the structure shown in FIG. 4, first, the spring 5 is attached as shown in FIG.
Is attached to the spring support piece 6, and the arm portion 5A on the one end side is hooked on the temporary fixing projection 7 and temporarily fixed. Then, the lid body 3 is attached to the device body 1 with the spring 5 temporarily fixed, and then the arm portion 5A is detached from the temporary fixation projection 7 and abutted and locked on the inner surface side of the lid body 3.

[0011]

At this time, the work of removing the arm portion 5A from the temporary fixing projection 7 is performed by hand, and when the arm portion 5A is removed from the temporary fixing projection 7, the spring 5 has an elastic force. The lid 3 moves to the inner surface side and is locked at a prescribed position.
At this time, since the lid body 3 is opened, the arm portion 5A has a large movement angle after being detached from the temporary fixing projection 7, and therefore the spring 5 is largely swung to move the arm portion 5A to the lid body 3 side. It may not fit in the proper locking position. In this case, the arm 5
Since the work for correcting A to the proper locking position is required, that is, the extra process is added, the work required for mounting the spring becomes more troublesome.

The present invention has been made to solve such problems.

[0013]

In order to achieve the above object, the present invention provides a lid body that is openably and closably attached to an equipment body, and is mounted between the lid body and the equipment body. In a device having an arm part on the lid side and an arm part on the other end side that is locked to the device body side to urge the lid body in the opening direction, for example, attach the lid body to the device body side. At the same time, a hook-shaped temporary fixing protrusion for temporarily fixing the arm portion on one end side of the spring is provided, and correspondingly to this, by closing the lid body, the arm portion on one end side of the spring is pressed. A pressing protrusion to be removed from the temporary fixing protrusion is provided.

[0014]

According to the present invention, since the arm portion of the spring is removed from the temporary fixing projection by the operation of closing the lid, the work required for mounting the spring becomes simpler than before. When the lid is closed, the arm part of the spring moves from the temporary fixing protrusion to the lid side, so the movement angle of the arm part can be small. Therefore, the swinging of the spring is small, so the arm part is surely close to the lid part. It fits in the regular locking position of.

[0015]

Embodiments of the present invention will be described below.

In FIG. 5, reference numeral 1 denotes a device main body, and a lid 3 for opening and closing a storage portion 2 recessed in the device main body 1.
Is rotatably attached.

On the device body 1 side, projecting shafts 4 (only one projecting shaft is shown in the drawing) are projectingly provided so as to face the left and right inner side surfaces of the housing portion 2, and correspondingly to this. On the lid 3 side, side plate pieces 3A and 3A projectingly provided on both left and right sides of the base end portion thereof.
B is formed with shaft holes 3a and 3b, respectively.
By fitting a and 3b on the protruding shaft 4, the lid 3 is attached to the device body 1 so as to be openable and closable about the protruding shaft 4 as a fulcrum.

As a mounting structure of the lid 3 to the device body 1, the projecting shaft and the shaft hole are in the opposite relationship to the above, that is, the device body 1 side is provided with the shaft hole, and the projecting shaft is provided on the cover 3 side. The structure may be provided, or a structure in which the opening / closing rotation center of the lid 3 is set other than the relationship between the projecting shaft and the shaft hole (for example, the lid is rotatably movable along an arc-shaped rail). Structure attached to the body).

On the bottom surface of the housing portion 2 of the device body 1, a protruding shaft 4 is provided.
An L-shaped spring support piece 6 is projectingly provided at a position corresponding to, and a spring (torsion coil spring) 5 for opening the lid is attached to the spring support piece 6 by engaging its coil portion 5C.

Further, on the bottom surface of the storage section 2 of the device body 1,
Located in front of the spring support piece 6, a hook-shaped temporary fixing projection 7
Is protruding. The temporary fixing projection 7 is for temporarily locking the arm 5A on one end side of the spring 5 when the lid 3 is attached.

The structure up to this point is the same as that of the conventional example shown in FIG.

In particular, in this embodiment, the arm 5A of the spring 5 is pressed against the inner surface of the lid 3 corresponding to the temporary fixing projection 7 on the device body 1 side so as to be removed from the temporary fixing projection 7. The protrusion 8 is provided so as to project.

As shown in FIG. 6, the pressing projection 8 is provided on the lid body 3.
Has a width and a length such that it fully overlaps with the tip portion of the temporary fixing projection 7 when it is completely closed (Fig. C), and the arm portion 5A is pressed at the tip thereof in a direction away from the temporary fixing projection 7. An inclined portion 8a is provided for this purpose.

Further, on the inner surface side of the lid body 3, a defining projection 9 is provided so as to be adjacent to the pressing projection 8.

The defining protrusion 9 is provided with a predetermined gap 10 between it and the pressing protrusion 8, and the portion of this gap 10 is a regular locking position in which the arm portion 5A of the spring 5 fits. . Further, the defining projection 9 is provided with an inclined portion 9a for surely attracting the arm portion 5A of the spring 5 into the gap 10.

In the above structure, the position of the pressing protrusion 8 in the front-back direction may be any position as long as it does not interfere with the temporary fixing protrusion 7, but if it is too far from the temporary fixing protrusion 7, the arm 5A is removed. Since it becomes difficult, temporary projection 7
A position close to is desirable.

Further, the positions of the temporary fixing projection 7 and the pressing projection 8 are appropriately set such that the tip portion of the arm portion 5A of the spring 5 is hooked and the tip portion of the arm portion 5A is pressed. By this, the temporary fixing operation and the removing operation of the arm portion 5A can be smoothly performed.

Next, the mounting operation of the spring 5 in this embodiment will be described. First, as shown in FIG. 5, the spring 5 is attached to the spring support piece 6 of the device body 1, and the arm portion 5A on one end side thereof is hooked on the temporary fixing projection 7 and temporarily fixed. In this state, the arm portion 5B on the other end side is brought into contact with and locked by the bottom surface of the storage portion 2.

Then, with the spring 5 temporarily fixed, the lid body 3 is attached to the apparatus body 1 so as to be freely opened and closed, and then the lid body 3 is attached.
6 to close the arm 5A of the spring 5 as shown in FIG.
Is disengaged from the temporary fixing projection 7 and is set in the regular locking position.

That is, the pressing projection 8 is integrally lowered by the closing operation of the lid 3 (A in the figure), and the inclined portion 8a of the pressing projection 8 eventually hits the arm portion 5A of the spring to temporarily fix the arm portion 5A. When the lid body 3 is completely closed by pushing out in a direction away from the cover body 3 (FIG. 6B), the arm portion 5A comes off from the temporary fixing projection 7 and moves toward the lid body 3 side by the elastic force of the spring, and the regular engagement is performed. It is locked so as to fit in the stop position, that is, in the portion of the gap 10 between the pressing protrusion 8 and the regulating protrusion 9 of the lid 3 (FIG. C).

As described above, the arm 5A of the spring 5 is locked at the regular position on the lid 3 side, so that the force of the spring 5 acts between the lid 3 and the device main body 1 and the lid 5 3 is always biased in the opening direction with respect to the device body 1.

As described above, in the present embodiment, the operation of detaching the arm portion 5A of the spring 5 from the temporary fixing projection 7 which is conventionally performed manually is completed by closing the lid 3, so that the spring 5 The work required to attach the is easier than before.

When the arm portion 5A of the spring 5 which is disengaged from the temporary fixing projection 7 moves to the lid body 3 side, the movement angle of the arm portion 5A is small because the lid body 3 is closed. Since the swing of the spring 5 is small, the arm portion 5A is surely set in the regular locking position of the lid body 3.

Therefore, it is possible to reduce the improper mounting of the spring 5, and it is not necessary to correct the arm portion 5A of the spring 5 to the regular locking position of the lid 3 as in the conventional case. You can expect a reduction.

FIG. 7 shows another embodiment of the present invention. The embodiment of FIG. 7 differs from the embodiment of FIG. 6 described above in that the spring arm 5A is temporarily fixed to the portion where the tip of the pressing protrusion 8 is formed horizontally and to the temporary fixing protrusion 7. This is a portion provided with an inclined portion 7a for guiding in a direction away from the protrusion 7.

In this embodiment, when the lid 3 is closed, the pressing projection 8 is lowered integrally with the lid 3 (A in the figure), and the tip of the pressing projection 8 eventually hits the arm 5A of the spring to press the arm 5A. Then, the arm portion 5A is guided along the inclined portion 7a and pushed out in a direction away from the temporary fixing projection 7 (FIG. 9B), and when the lid body 3 is completely closed, the arm portion 5A is fixed. 7 and is locked by the elastic force of the spring so as to be accommodated in the regular position on the lid 3 side, that is, in the gap 10 between the pressing protrusion 8 and the regulating protrusion 9 (FIG. 8C).

The embodiment of FIG. 7 also has a structure in which the arm 5A of the spring is removed from the temporary fixing projection 7 by closing the lid 3, so that the same effect as the embodiment of FIG. 6 described above is obtained. Is obtained.

In the two embodiments described above, the provisional fixing projection 7 is provided on the device body 1 side and the pressing projection 8 is provided on the lid body 3 side. However, this setting is reversed, that is, the lid body 3 side. It is also possible to provide a structure in which the temporary fixing projection 7 is provided on the above and the pressing projection 8 is provided on the device body 1 side. However, in this case, the spring support piece 6 also covers the lid body 3.
Will be installed on the side.

[0039]

According to the present invention as described above,
In the spring mounting process, by closing the lid, the arm on one side of the spring is removed from the temporary fixing protrusion and locked in the proper position, reducing the number of work steps when mounting the spring and reducing spring mounting defects. Can be expected.

[Brief description of drawings]

FIG. 1 is a perspective view of a device having a lid.

FIG. 2 is an explanatory diagram of a conventional example.

FIG. 3 is an explanatory diagram of a conventional example.

FIG. 4 is an explanatory diagram of another conventional example.

FIG. 5 is a perspective view showing an example.

FIG. 6 is an explanatory diagram of a main part of the embodiment, and includes (A) to (C).
Shows the operation of removing the arm part of the spring from the temporary fixing projection.

FIG. 7 is an explanatory diagram of a main part of another embodiment, including (A) to
(C) shows an operation of removing the arm portion of the spring from the temporary fixing protrusion.

[Explanation of symbols]

 1 Equipment Main Body 3 Lid 5 Spring 5A Arm 6 Spring Supporting Piece 7 Temporary Fixing Protrusion 7a Inclined Part 8 Pressing Protrusion 8a Inclined Part

Claims (3)

[Claims] 1. A lid body that is attached to the device body so as to be openable and closable, and is mounted between the lid body and the device body, with one arm portion on the lid side and the other arm portion on the device body. In a device that has springs that are each locked to the side and urges the lid in the opening direction, temporarily secure the arm part on one side of the spring to the device body or the lid when attaching the lid. A hook-shaped temporary fixing protrusion is provided, and a pressing protrusion for pressing the arm portion on one side of the spring by closing the lid body to remove it from the temporary fixing protrusion is provided on the other side. Attachment mechanism for a lid opening spring in a device having a body. 2. The lid according to claim 1, wherein the pressing protrusion is provided with an inclined portion, and the arm portion on one side of the spring is disengaged from the temporary fixing protrusion by being pressed by the inclined portion. Attachment mechanism for a lid opening spring in a device having a body. 3. The structure according to claim 1, wherein the temporary fixing protrusion is provided with an inclined portion, and one arm portion of the spring pressed by the pressing protrusion is guided along the inclined portion to be removed from the temporary fixing protrusion. A mounting mechanism for a lid opening spring in a device having a lid, characterized in that