JP2002059954A - Lid opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid opening/closing device wherein parts and the assembling cost are reduced, and there is no defective part due to material flaws or the like. SOLUTION: A lid 23 and a hinge plate 24 which rockably holds the lid 23 are formed of a resin. Then, the lid 23 and the hinge plate 24 are slidably fitted. The hinge plate 24 is axially attached by a shaft 25 to a bearing 22a which is integrally formed with a holder 22. By constituting this lid opening/ closing device of the lid 23 and the hinge plate 24, the number of parts can be greatly reduced, and the parts and the assembling cost are reduced. Also, the lid 23 and the hinge plate 24 are made of the resin wherein there no fear for material flaws. Therefore, the generation of detects due to material flaws can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lid opening and closing device,
In particular, the present invention relates to a lid opening / closing device for a holder for accommodating a battery of a portable device or the like.

[0002]

2. Description of the Related Art In a portable electronic device requiring a battery, a lid is provided at a holder portion for accommodating the battery in order to replace a depleted battery, so that the battery can be easily replaced. . Such a lid needs to have a mechanism that prevents the lid from being detached from the main body when opened and prevents the lid from being lost, and a mechanism that makes the user realize that the lid is securely closed when closed.

FIG. 6 is an exploded perspective view showing an example of a conventional lid opening / closing device. In the conventional lid opening and closing device, a holder 2 for storing a battery is provided inside a cabinet 1, and a lid 3 is provided at a battery outlet of the holder 2 so as to be openable and closable. A lock knob 4 for unlocking, a lock lever 5, and a lock lever spring 6 are housed in the lid 3, and a sheet metal hinge holder 8 is sandwiched between the sheet metal hinge plate 7 and a screw 9 to cover the cover 3. It is fixed to. The hinge plate 7 is supported by a sheet metal hinge holder 10 by a shaft 11, and is urged by a torsion coil spring 12 in a direction in which the lid 3 opens. Further, a leaf spring 13 is fixed to the hinge holder 10 by a screw 14, and urges a battery locking claw 15 pivotally supported by the holder 2 toward the middle of the holder 2.

When the lid 3 is closed, the lock lever 5 is urged outward by the lock lever spring 6, and at this time, the projection 5 a of the lock lever 5 is attached to the inner edge of the opening of the hinge plate 7. At the same time, the projection 7a provided in the opening restricts the lid 3 from sliding and opening the lid 3 in a direction away from the shaft 11.

When the cover 3 is opened, a lock knob 4 pivotally supported by the cover 3 is pushed. Then, the projection 4a having an inclined surface provided on the lock knob 4 rotates and moves along a rotation locus. Since the lock lever 5 has an inclined surface that comes into contact with the inclined surface of the projection 4a of the lock knob 4, the lock lever 5 compresses the lock lever spring 6 by drawing the rotation trajectory of the projection 4a. Move to. Thereby, the projection 5a of the lock lever 5
It moves away from the inner edge of the opening of the hinge plate 7 to a position where it can get over the protrusion 7a. In this state, when the lid 3 is slid in a direction away from the shaft 11 while pressing the lock knob 4, the lock is released, and when the pressing of the lock knob 4 is stopped, the lock lever 5 is moved by the lock lever spring 6.
The projection 5a of the hinge plate 7 stops by contacting the inner edge of the outside that has passed over the projection 7a of the opening of the hinge plate 7 so that the lid 3 can be rotated about the axis 11 of the hinge plate 7 in the opening direction. Become. Here, when you release your finger from the lock knob 4,
Since the torsion coil spring 12 urges the lid 3 in the opening direction, the lid 3 keeps the open state.

In order to remove the battery inserted in the holder 2, the free end of the battery engaging claw 15 is
The battery locking claw 15 that has locked the battery is disengaged and moves out of the battery insertion passage. Thereby, the battery can be taken out. Then, when another battery is inserted and pushed to the back, the battery locking claw 15 urged by the leaf spring 13 holds the rear end of the battery and fixes it.

When the cover 3 is closed, the lock knob 4 is pushed while the battery insertion opening is closed, and the cover 3 is slid in the direction of the axis 11 of the hinge plate 7 so that the projection 5a of the lock lever 5 is moved to the hinge plate. Projection 7a at opening 7
Further, by sliding the lid 3 in the direction of the axis 11 of the hinge plate 7, the projection 5a of the lock lever 5 rides over the projection 7a of the hinge plate 7, and the lock lever spring 6
Thereby, the hinge plate 7 comes into contact with the inner edge inside the opening. At this time, when the projection 5a of the lock lever 5 rides over the projection 7a of the hinge plate 7 and abuts on the inner edge of the opening, a clicking sound is made to give a feeling that the lid is completely closed. There is a so-called lock feeling, which informs the operator that the lid 3 is locked.

In the conventional lid opening / closing device, the components of the opening / closing mechanism of the lid 3 include a holder 2, a lid 3, a lock knob 4, a lock lever 5, a lock lever spring 6, a hinge plate 7, a hinge holder 8, a screw 9, and a hinge holder. 10, a shaft 11, a torsion coil spring 12, a leaf spring 13, and a screw 14 are provided. Among them, the hinge plate 7 and the hinge holder 10
Are sheet metal parts, which are assembled by a maker of sheet metal and then delivered to a plastic mold maker of parts such as a holder 2 and a lid 3, where a lid opening and closing device is assembled. .

[0009]

However, when a completely assembled lid opening / closing device is urgently needed, the two companies, a sheet metal maker and a mold maker, each have their own convenience, so it takes time for delivery and the number of parts is reduced. There was a problem that the cost was high because of the large number.

[0010] Further, in order to provide a sense of locking when the lid is opened and closed, the number of parts requires the lock knob 4, the lock lever 5, the lock lever spring 6, the lid 3, the hinge holder 8, and the screw 9, resulting in a problem in cost. was there.

Further, since the hinge holding of the sheet metal is used on the surface which becomes the appearance when the lid is opened, there is a problem of material scratches attached to the sheet metal from the beginning before processing, and it is quite costly to eliminate this. There was a problem that it would take.

The present invention has been made in view of the above points, and an object of the present invention is to provide a lid opening / closing device that reduces parts and assembling costs and has no parts failure due to a material scratch or the like.

[0013]

According to the present invention, there is provided a lid opening / closing device having a lock mechanism, wherein a resin hinge plate pivotally supported by an internal component is slidably mounted on the hinge plate. A resin that can take a first sliding position in which it is fitted and slid to be fitted and locked to the opening peripheral portion, and a second sliding position in which it is released from the opening peripheral portion and unlocked by sliding. A lid opening / closing device, comprising:

According to the above configuration, since the lid and the hinge plate holding the lid are made of resin, the number of parts can be significantly reduced, and the cost of parts and assembly can be reduced. Further, since there is no sheet metal part, it is possible to eliminate the occurrence of defects due to material scratches.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, taking as an example the case where the present invention is applied to a lid of a holder for storing a battery of a portable device.

FIG. 1 is an exploded perspective view showing a lid opening / closing device according to the present invention. The lid opening / closing device of the present invention is constituted by a resin lid 23 and a resin hinge plate 24 which can be opened and closed at a battery outlet of a battery holder 22 provided inside a cabinet 21 of a portable device. You.

The holder 22 has a bearing 22a formed integrally therewith. The hinge plate 24 is integrally formed with a shaft holding portion 24a for inserting a shaft 25 whose both ends are supported by a bearing 22a on one side thereof. Can be attached to A notch is provided at the center of the shaft holding portion 24a of the hinge plate 24, and a torsion coil spring 26 is disposed therein. When the shaft 25 is inserted into the shaft holding portion 24a of the hinge plate 24, the torsion coil spring 26 is also passed through the shaft holding portion 24a to urge the hinge plate 24 to rotate in the opening direction.

The holder 22 also has a battery locking claw 27
And a leaf spring mounting portion 22c for mounting a leaf spring 28 for urging the battery locking claw 27 inward of the holder are integrally formed. The same opposing bearing portion and opposing leaf spring mounting portion are also formed on the inner wall portion of the cabinet 21 facing the bearing portion 22b and the leaf spring mounting portion 22c of the holder 22,
The swinging shaft of the battery locking claw 27 is sandwiched between the bearing portion 22b of the holder 22 and the opposed bearing portion of the cabinet to support the battery locking claw 27, and the leaf spring mounting portion 22c of the holder 22 and the cabinet The leaf spring 28 is held between the opposed leaf spring mounting portion 21 and the leaf spring 28 without using screws.

The lid 23 is fitted to the hinge plate 24 so as not to be separated from the hinge plate 24 at the time of opening and closing.
The mechanism is locked at the time of closing. Next, the mechanism will be described in detail.

FIG. 2 is an exploded perspective view showing the lid and hinge plate in an enlarged manner, FIG. 3 is an exploded perspective view of the lid and hinge plate seen from the opposite direction to FIG. 2, and FIG. It is the fragmentary sectional view which expanded and showed the joint part.

The lid 23 is formed integrally with a pair of guide rails 23a extending in the direction in which it slides when opened and closed. The hinge plate 24 is formed integrally with slide portions 24b on both sides thereof. As shown in FIG. 4, the lid 23 and the hinge plate 24 can slide the lid 23 in the opening and closing direction by fitting the slide portion 24b to the guide rail 23a. At this time, the sliding portion between the sliding portion 24b of the hinge plate 24 and the guide rail 23a of the lid 23 comes into contact with a point and a surface, thereby improving the slidability.

When the lid 23 and the hinge plate 24 are fitted to each other, one side
A pair of stoppers 23b are formed integrally with the lid 23, and a pair of stoppers 24c are also provided on the hinge plate 24 side.
And are formed integrally. These stoppers 23b, 2
4c is a slope before the lid 23 and the hinge plate 24 are assembled, that is, when the lid 23 and the hinge plate 24 are separated from each other as shown in FIGS. have.

Therefore, when the slide portion 24b of the hinge plate 24 is fitted to the guide rail 23a of the lid 23 to assemble the lid 23 and the hinge plate 24, the inclined surfaces of the stoppers 23b and 24c face each other. It is in. When the lid 23 is pushed in the direction of the shaft holding portion 24a of the hinge plate 24, first, the inclined surfaces of the stoppers 23b and 24c come into contact with each other. When the lid 23 is further pushed in, the stoppers 23b and 24c go up the inclined surfaces of each other while elastically deforming the resin lid 23 and the hinge plate 24 so as to expand outward.
3b, 24c move past their tops to the side opposite the side with the ramp. Thus, even if the lid 23 is pulled in the direction opposite to the pushing, the stoppers 23b, 24
c abuts and the lid 23 does not come off the hinge plate 24.

At substantially the center of the opposing surfaces of the lid 23 and the hinge plate 24, a raised portion 23c is formed integrally with the lid 23, and a sliding projection 24d is formed on the hinge plate 24 side. Are formed integrally with the hinge plate 24. The raised portion 23c and the sliding protrusion 24d are
It works to give a sense of lock when the 3 is closed by sliding. That is, the lid 23 is attached to the shaft holding portion 24 of the hinge plate 24.
When the cover 23 is pushed in the direction of a, the raised portion 23c first comes into contact with the base of the sliding protrusion 24d, and when the lid 23 is further pushed in, the resin-made hinge plate 24 is elastically deformed so as to expand outwardly. When the portion 23c goes up the sliding protrusion 24d and further presses it, the raised portion 23c is
Over the top, the raised portion 23c slides down the sliding protrusion 24d due to the elasticity of the hinge plate 24, and the raised portion 23c comes into contact with the base on the opposite side of the sliding protrusion 24d.
The lid 23 stops at the side closest to the shaft holding portion 24a of the hinge plate 24 while emitting a contact sound. In other words, the raised portion 23c and the sliding protrusion 24d constitute a mechanism for giving a sense of lock, whereby the user can be informed that the lid 23 has been securely closed. At this time, the groove 23e formed on the side of the lid 23 is fitted to the opening peripheral portion at the battery entrance, and the lid 23 is locked to the cabinet 21.

Next, the operation of the lid opening / closing device when the lid 23 thus closed is opened will be described.
5A and 5B are partial cross-sectional views illustrating the opening operation of the lid opening / closing device. FIG. 5A shows a state where the lid is closed, FIG. 5B shows a state where the lid is unlocked, and FIG. This shows an open state.

When the lid 23 is closed, the protruding portion 23c of the lid 23 is located inside the sliding protrusion 24d of the hinge plate 24 as shown in FIG. is there. When the lid 23 is opened, a finger is applied to a finger contact portion 23d formed on the outer surface of the lid 23 to slide the lid 23 outward. As a result, as shown in (B), the raised portion 23c of the lid 23 is positioned over and outside the sliding protrusion 24d of the hinge plate 24, and the groove 23e of the lid 23 is positioned at the edge of the opening at the battery entrance. The lid 23 is unlocked. Here, when the finger is released from the finger contact portion 23d of the lid 23, the torsion coil spring 26
As a result, the hinge plate 24 is rotated in the opening direction, and the lid is opened as shown in FIG.

[0027]

As described above, according to the present invention, the lid and the hinge plate for holding the lid openably and closably are formed of resin,
The lid and the hinge plate are slidably fitted to each other, and a protruding portion and a sliding projection are provided on their opposing surfaces to provide a mechanism for giving a sense of lock. As a result, the number of parts is greatly reduced, and only one manufacturer is required to perform assembly. This not only reduces costs but also eliminates the need for parts for locking and unlocking the lid. The hinge plate can be made thick enough to withstand the destructive test,
The strength can be at least as high as that of a case formed of sheet metal. In addition, although seven parts were conventionally required as a mechanism for giving a sense of locking of the lid, the number of parts can be reduced to two, that is, the lid and the hinge plate. Further, since the hinge plate is made of resin, the hinge holder can be made of resin, and can be formed as a single component integrally with the resin holder.

Further, since there is no sheet metal part as the lid opening / closing device, and there is no fear of material flaws, it is possible to eliminate defects due to material flaws. Further, in the above embodiment, the leaf spring is sandwiched between the leaf spring mounting portion of the holder and the opposing leaf spring mounting portion of the cabinet, so that a screw for fixing the leaf spring is not required.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a lid opening and closing device of the present invention.

FIG. 2 is an exploded perspective view showing a lid and a hinge plate in an enlarged manner.

FIG. 3 is an exploded perspective view of a lid and a hinge plate viewed from a direction opposite to FIG. 2;

FIG. 4 is an enlarged partial sectional view showing a fitting portion between a lid and a hinge plate.

5A and 5B are partial cross-sectional views illustrating the opening operation of the lid opening and closing device, where FIG. 5A shows a state where the lid is closed, FIG. 5B shows a state where the lid is unlocked, and FIG. Indicates an open state.

FIG. 6 is an exploded perspective view showing an example of a conventional lid opening / closing device.

[Explanation of symbols]

21 ... cabinet, 22 ... holder, 22a ... bearing, 22b ... bearing part, 22c ... mounting part, 23 ...
Lid, 23a guide rail, 23b stopper, 2
3c: raised portion, 23d: finger contact portion, 23e: groove portion, 24: hinge plate, 24a: shaft holding portion, 24b:
... Sliding part, 24c ... Stopper, 24d ... Sliding projection, 25 ... Shaft, 26 ... Torsion coil spring, 27 ...
Battery locking claw, 28: leaf spring.

Claims (4)

[Claims] 1. A lid opening / closing device having a lock mechanism, comprising: a resin hinge plate pivotally supported by an internal component member; slidably fitted to the hinge plate; And a resin lid capable of taking a first slide position where it is fitted and locked in the portion and a second slide position where the first slide position is unlocked by being disengaged from the peripheral edge of the opening by sliding. A lid opening and closing device. 2. A ridge and a sliding projection which slide on each other during a sliding operation between a first sliding position and a second sliding position of the lid, respectively, on opposing surfaces of the lid and the hinge plate. 2. The lid opening / closing device according to claim 1, further comprising a mechanism for providing a lock feeling. 3. The lid opening and closing according to claim 1, wherein stoppers are provided on opposing surfaces of the lid and the hinge plate to prevent the lid from coming off the hinge plate when the lid slides. apparatus. 4. The lid opening / closing device according to claim 1, further comprising: urging means for urging the hinge plate to swing in a direction to always open.