JP2010157431A - Lid opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve miniaturization and cost reduction of a device by reducing numbers of components. <P>SOLUTION: A lid opening/closing device includes: a lid 13 having a lid body 13a and a rotation axis 13c of the body; and an apparatus body 1 provided with a bearing part 8a of the rotation axis 13c. The lid 13 can be opened by turning the lid 13 around the rotation axis relative to the apparatus body 1 from a closed state. The apparatus body 1 has an abutting part 8c on which the lid 13 abuts when the lid 13 is fully opened, and a deforming part configured such that the vicinity of the bearing part 8a is deformed in the same turning direction with that of the lid 13 when a force is applied on the lid 13 in the direction of further opening after abutting of the lid 13 on the apparatus body 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rotatable lid opening / closing device such as a battery lid used in a portable device called a small camcorder, for example.

  A camcorder is known as one of small portable devices. The camcorder is generally battery driven from the viewpoint of portability. For this reason, the device main body is provided with a battery accommodating portion for accommodating a battery and a lid for covering the battery accommodating portion, and usually an operation such as photographing is performed in a closed state.

  In addition, the camcorder is a device that is operated by hand, and is expected to be dropped or hit by mistake. For this reason, the lid mechanism is required to be robust. On the other hand, portable devices are required to be further downsized from the viewpoint of improving portability. In such a lid opening / closing device, for example, a technique disclosed in Patent Document 1 is disclosed.

Japanese Patent No. 3999342

  Conventional examples according to Patent Document 1 are shown in FIGS. FIG. 10 is a view showing a closed state in the conventional example, FIG. 11 is a view showing a state in which the cover is normally opened, and FIG. 12 is a view showing a state in which the cover is opened excessively. As shown in the figure, in the conventional example, the lid member 81 is rotated about the rotation center shaft 92 as a rotation axis, thereby shifting from the closed state to the open state where the battery B is exposed.

  Here, when a force F1 further acts on the opened lid member 81 in FIG. 11, the lid member 81 rotates counterclockwise with the edge portion 104a as a fulcrum. When the lid member 81 rotates counterclockwise, the rotation center axis module 90 is pulled in the X1 direction and moved in the X1 direction as shown in FIG. At this time, the compression coil spring 93 provided in the rotation center axis module 90 is compressed as shown. The structure of the rotation center axis module 90 has been described in detail in the above-described conventional example, and thus the description thereof is omitted.

  Thereafter, the lid member 81 is excessively opened until it hits the side surface 106 of the casing body 64. In this state, the force F1 is received by the side surface 106 of the casing body 64, and the lid member 81 does not rotate any more. When the force F1 does not act in the state shown in FIG. 12, the rotation center shaft module 90 is moved in the X2 direction by the spring force of the compression coil spring 93, and the rotation center shaft 92 is recessed 107 (FIG. 10). (A) By being pulled in, the cover member 81 is rotated in the closing direction.

  With the above-described configuration, in the conventional example, robustness against a case where the lid member 81 is accidentally dropped or bumped in the opened state is ensured. However, in the above-described conventional example, a part constituting the rotation center axis module 90 and a space for housing the part are required. For this reason, the apparatus main body must be increased in size and cost.

  The present invention is for solving the above-described problems, and provides a lid opening / closing device that realizes downsizing and cost reduction of the device by reducing the number of parts compared to the conventional example.

  In order to solve the above problems, a lid opening / closing device of the present invention comprises a lid main body portion, a lid having a rotating shaft thereof, and a device main body in which a bearing portion of the rotating shaft is disposed. A lid opening / closing device configured to be able to open by rotating the lid from the closed state around the rotation axis, wherein the device main body has a contact portion with which the lid abuts when the lid is fully opened, When a force is applied to the lid in a further opening direction after the lid abuts on the device main body, the vicinity of the bearing portion has a deforming portion that deforms in the same rotational direction as the lid. And

  In the lid opening and closing device of the present invention, a part of the lid main body portion includes a bridging portion in which a bending rigidity around the rotation axis is set low.

  In the lid opening / closing apparatus of the present invention, the bridging portion is formed at a position where the bridging portion comes into contact with the contact portion.

  In the lid opening and closing device of the present invention, when a force is further applied to the lid after the lid abuts on the device main body, the deforming portion is deformed, and the lid is substantially the same as the device main body. It is characterized by closely contacting so as to be parallel.

  Further, in the lid opening / closing device of the present invention, when a force is further applied to the lid in the opening direction after the lid abuts on the device main body, the deforming portion and the bridging portion are deformed, and the lid is It is characterized by being in close contact with the main body of the device.

  In the lid opening and closing device of the present invention, the lid and the device main body in the closed state are configured to be substantially flush with each other.

  In the lid opening / closing device of the present invention, the lid includes a lock mechanism that allows the lid to slide from the closed state to the opened state by sliding in a direction orthogonal to the rotation axis.

  According to the present invention, the vicinity of the bearing portion of the device main body is deformed, thereby enabling further rotation when an excessive force is applied. The deformation part in the present invention is formed by, for example, configuring at least a part of an exterior part formed of a mold or a sheet metal part for fixing the exterior part so as to be elastically deformable. Therefore, compared with the conventional example, the parts constituting the lid opening / closing device are reduced, and the device can be reduced in size and cost.

  Further, by providing the lid with a bridging portion having a low bending rigidity around the rotation axis, both the deformed portion and the bridging portion of the device main body are configured to be deformable. As a result, it is possible to secure a further amount of rotation as compared with the case of rotation by deformation of only the deformation portion, and the robustness of the apparatus is improved. Further, when the amount of rotation is not increased, the amount of deformation of the deformable portion can be reduced, so that the size of the deformable portion can be reduced.

In addition, it is possible to improve the design by configuring the external surface of the lid and the device body in the closed state to be substantially flush with each other.
In addition, the lid has a lock mechanism that can be rotated to the opened state by sliding in the direction orthogonal to the rotation axis in the closed state, thereby improving operability. Further, the lid slides in a direction orthogonal to the rotation axis, so that the rotation center when performing the rotation operation is separated from the contact portion of the device main body. Accordingly, it is possible to secure a larger amount of rotation until the lid comes into contact with the contact portion as compared with the case where the cover does not slide. For this reason, since the deformation amount of the deforming portion can be reduced, the size of the deforming portion can be reduced.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a lid opening / closing device according to the present invention will be described with reference to the drawings. In the present embodiment, the lid opening / closing device of the present invention is applied to a battery cover of a video camera.
First, the overall configuration of the video camera according to the present embodiment will be described mainly with reference to FIGS. 1A and 1B are perspective views showing an appearance of the video camera according to the present embodiment as viewed from the upper surface side, where FIG. 1A is a diagram viewed from the front end side of the optical axis of the lens, and FIG. is there. 2A and 2B are perspective views showing the external appearance of the video camera as viewed from the bottom side. FIG. 2A is a view showing a state in which a battery cover, which will be described later, is closed, and FIG. is there.
In the following description, the front side and the rear side of the camera optical axis are indicated by arrows Fr and Rr, respectively. Further, the left side and the right side to be described later are indicated by arrows Lt and Rt, respectively.

  In the figure, 1 is a main body of the apparatus, in this example, the main body of the video camera, 2 is a lens unit for taking a picture, 3 is a display unit for displaying an image being recorded, 4 is a power switch of the video camera, 5 is This is a trigger button for starting recording. Reference numeral 6 denotes an L cover that is an exterior component that covers the left side surface of the main body 1 when viewed from the optical axis front end side of the lens unit 2, 7 is an R cover that covers the right side surface, and 8 is a bottom cover that covers the bottom surface. 9 is a battery housing portion for housing the battery 10 (FIG. 2B) provided in the main body 1, and 11 is a battery eject knob for preventing the battery 10 from being detached from the main body 1 in a state where the battery 10 is inserted. It is. Reference numeral 12 denotes an SD card slot for inserting an SD card, which is a recording medium, and reference numeral 13 denotes a battery cover that covers the battery accommodating portion 9 so as to be freely opened and closed. As will be described later, the battery cover 13 is configured to be able to be opened by rotating around its rotating shaft 13c.

  When the power switch 4 is pressed, the main body 1 is turned on, and when the trigger button 5 is pressed, shooting is started via the lens unit 2. At this time, the recorded recording information is recorded on a recording medium (not shown) such as an HDD or a memory provided in the main body 1 or an SD card inserted in the SD card slot 12. On the other hand, the image being recorded is displayed on the display unit 3, and the operator can suitably take a picture by operating a zoom lever or the like (not shown) while checking the image.

Next, the structure around the battery cover which is the lid opening / closing mechanism of the present invention will be described in detail.
3A to 3D are perspective views for explaining the structure around the battery cover, in which FIG. 3A shows an exploded state, FIG. 3B shows a state during the assembly, and FIGS. 3C and 3D show a state where the assembly is completed. ing. 3A to 3D, only parts necessary for explanation are extracted and shown.

  The battery cover 13 is integrally formed with a lid main body portion 13a, a bridging portion 13b, and a rotating shaft 13c. In addition, the bridge | crosslinking part 13b in this embodiment is comprised shorter than the cover main-body part 13a in the width direction which is the rotating shaft 13c direction, as shown in figure. Thereby, the bending rigidity around the rotating shaft 13c is set low. As described above, the width in the width direction of the bridging portion 13b is shortened, so that it is easy to bend in the rotation direction of the rotation shaft 13c. The bottom cover 8 is formed with a substantially U-shaped bearing portion 8a (to be viewed in the direction of the rotation shaft 13c) on which the rotation shaft 13c of the battery cover 13 is mounted. The rotating shaft 13c is placed on the bearing portion 8a, and the opening / closing spring 16 is fixed to the bottom cover 8 so that the urging portion 16a of the opening / closing spring 16 contacts the rotating shaft 13c. Thereby, the battery cover 13 is supported so as to be rotatable with respect to the bottom cover 8.

  Next, the bottom plate 14 formed in a substantially L shape is fixed to the bottom cover 8. As a result, the state shown in FIG. 3B is obtained. The bottom plate 14 is mounted to improve the strength on the bottom side of the main body 1 and to ensure electrical GND.

  On the other hand, a battery plate 15 is fixed to the battery housing portion 9 in order to ensure electrical GND with electrical components such as the power switch 4 and the SD card slot 12 shown in FIG. The battery plate 15 is formed with an L-bent portion 15a that is bent in an L-shape so that a bent ridge line is formed in a plane perpendicular to the optical axis and parallel to the bottom surface. Further, a female thread portion is formed on the tip end side of the L bent portion 15a.

  By mounting the battery housing portion 9 on the bottom cover 8 in the state shown in FIG. 3B, the L bent portion 15 a comes into contact with a tip portion 14 a formed in a plate spring shape on a part of the bottom plate 14. At this time, a hole is formed in the distal end portion 14a so as to be substantially concentric with the female screw portion of the L bent portion 15a. Next, screws are tightened from the direction indicated by arrow A in FIG. 3A. As a result, the bottom cover 8 and the battery housing 9 are fixed, and electrical conduction between the bottom plate 14 and the battery plate 15 is ensured.

  Next, the assembly structure of the L cover 6 will be described with reference to FIGS. 4 and 5 in addition to FIG. 4 is a perspective view of the battery housing portion 9 as seen from the bottom surface side, FIG. 5A is a cross-sectional view taken along line BB in FIG. 3D, and FIG. 5B is a cross-sectional view taken along line EE. The BB cross section shows a cross section in a plane perpendicular to the optical axis through a convex portion 6a provided on the L cover 6 described later.

  As shown in FIG. 3A, a convex portion 6 a is integrally formed at the end portion of the L cover 6 on the battery housing portion 9 side. On the other hand, a concave portion 9a is formed in the battery accommodating portion 9 as shown in FIG. 4, and the convex portion 6a and the concave portion 9a are engaged with each other as shown in FIG. . By configuring in such a shape, the L cover 6 and the battery housing portion 9 are fixed in the direction of the L cover removal, which is the direction of the arrow C in FIG.

  As shown in FIGS. 3A and 5B, an outer rail portion 6b is formed on the end surface of the L cover 6 in the optical axis direction. On the other hand, an inner rail portion 8b is formed at the end of the bottom cover 8 facing the outer rail portion 6b. The L cover 6 is engaged with the battery housing portion 9 described above, and is fixed to the bottom cover 8 by screwing from the position indicated by the arrow F in FIG. 3A.

  As is clear from the above description, the bottom cover 8 is screwed to the L bent portion 15a of the battery plate 15 via the tip portion 14a of the bottom plate 14 in the vicinity of the bearing portion 8a of the bottom cover 8 on the R cover 7 side. Has been. In the present embodiment, the bottom cover 8, the tip end portion 14a of the bottom plate 14, and the L bent portion 15a of the battery plate 15 are configured to be elastically deformable at the center of the rotating shaft 13c by adopting the shape as described above. Yes.

Since the battery plate 15 is a component that only requires electrical continuity, it is formed of a thin sheet metal that can be easily deformed, and the bottom plate 14 that requires strength is formed of a thicker sheet metal. It is also possible to use only the elasticity and the elasticity of the bottom cover 8.
On the other hand, in the vicinity of the bearing portion 8 a of the bottom cover 8 on the L cover 6 side, the bottom bar 8 is interposed via the outer rail portion 6 b of the L cover 6 by the engagement of the convex portion 6 a of the L cover 6 and the concave portion 9 a of the battery housing portion 9. The inner rail portion 8b is locked. Therefore, the bottom cover 8 is configured to be deformable when a force acts on the bearing portion 8a of the bottom cover 8 from the bottom surface to the outside in the vertical direction.

  In this embodiment, the R cover 7 is fixed to the bottom cover 8 on the front end side in the optical axis direction and the battery housing portion 9 on the rear end side in the optical axis direction with screws. Thus, in the vicinity of the rotation shaft 13c, the bottom cover 8 can be deformed from the bottom surface to the outside in the vertical direction with respect to the R cover 7 as well.

Next, the opening / closing operation | movement of the battery cover 13 of this invention is explained in full detail using FIGS.
6 shows a state in which the battery cover 13 of the main body 1 is closed in the present embodiment, FIG. 7 shows a state in which the battery cover 13 is slid to the back side (Rr direction) of the main body 1 in order to release the lock, and FIG. Each of the states opened by rotation is shown. FIGS. 6A, 7, and 8 </ b> A are cross-sectional views (LL cross-sectional view shown in FIG. 3D) in a plane that passes through the end surface of the rotary shaft 13 c and is perpendicular to the rotary shaft 13 c. FIG. 6B and FIG. 8B are cross-sectional views (MM cross-sectional view shown in FIG. 3D) in a plane that passes through the optical axis and is perpendicular to the rotation axis 13c.

  In the closed state, as shown in FIG. 6 (a), the rotating shaft 13c has an end surface in the optical axis direction (Fr direction) of the bearing portion 8a, and a cylindrical surface 16b formed on the biasing portion 16a of the opening / closing spring 16. Located between. Further, the claw portion 13d shown in FIG. 2 and the claw insertion portion 17 are engaged. The battery cover 13 is locked by the engagement of the opening / closing spring 16 and the claw portion 13d. As will be described later, the lock mechanism enables the battery cover 13 to be shifted from the closed state to the open state. Further, as shown in FIG. 6B, the exterior surface or the exterior surface of the bottom cover 8 and the battery cover 13 are substantially flush with each other.

  Next, the battery cover 13 is slid in the direction indicated by the arrow G in FIG. 6A, that is, in the direction orthogonal to the rotation shaft 13c. As a result, the rotary shaft 13c moves over the cylindrical surface 16b of the opening / closing spring 16 and thus a reaction force is generated on the rotary shaft 13c, giving the operator a good click feeling. When the slide is completed as shown in FIG. 7, the rotation shaft 13 c is positioned between the end surface on the rear end side in the optical axis direction of the bearing portion 8 a and the cylindrical surface 16 b of the opening / closing spring 16, and the claw portion 13 d is claw insertion portion 17. Completely leave.

  In the state of FIG. 7, by applying a force in the direction of arrow H to the battery cover 13, the battery cover 13 rotates about the rotation shaft 13 c. Thereafter, the bridging portion 13 b of the battery cover 13 comes into contact with the contact portion 8 c of the bottom cover 8. This shifts to the fully opened state shown in FIG. At this time, it is also possible to apply an urging force to the rotating shaft 13 c by the cylindrical surface 16 b of the opening / closing spring 16. As a result, a load can be applied to the rotating operation of the battery cover 13, so that it is possible to give a suitable operational feeling to the operator.

  Further, in comparison with the case where the battery cover 13 is rotated until it comes into contact with the contact portion 8c at a position before sliding (position in FIG. 6), the contact portion 8c comes into contact with the position shown in FIG. It is possible to increase the amount of rotation of the battery cover 13 up to. As a result, the battery housing 9 is greatly opened as viewed from the operator side, so that the visibility when the battery 10 is attached or detached is improved, and the operability is improved. Further, the distance until the lid main body portion 13a of the battery cover 13 abuts against the bottom cover 8 when a force J described later is applied is reduced. Therefore, the required deformation amount of the battery cover 13 and the bottom cover 8 can be reduced.

  Thereafter, the battery eject knob 11 is rotated to take out the battery 10 from the battery housing portion 9 or insert the battery 10 into the battery housing portion 9.

Here, the case where the force J further acts as shown in FIG. 8 as in the conventional example will be described in detail with reference to the schematic diagram shown in FIG.
When further force is applied in the direction of arrow J, as shown in FIG. 8B, a force K is generated on the rotating shaft 13c to rotate around the contact portion 8c. However, in the configuration described above, the vicinity of the bearing portion 8a of the bottom cover 8 of the present embodiment can be deformed in the direction of the force K, that is, this portion functions as a deforming portion. For this reason, it is possible to absorb the stress which generate | occur | produces in the battery cover 13 by deform | transforming like the schematic diagram shown in FIG.

  Further, since the bridging portion 13b has a low bending rigidity around the rotating shaft 13c as described above, the bridging portion 13b can be deformed as shown in FIG. For this reason, it is possible to further absorb the stress generated in the battery cover 13. Typically, as in the above case, the battery cover 13 is in close contact with the bottom cover 8 as shown in the figure.

  If the bottom cover 8 is configured so as not to be deformable, it is necessary to reduce the thickness of the bridging portion 13b or to extend the length in the longitudinal direction in order to absorb the stress described above. However, if the thickness is reduced, the robustness of the battery cover 13 itself is lowered, and the extension in the longitudinal direction leads to an increase in the size of the apparatus.

As described in detail above, according to the present invention, it is possible to ensure the robustness of the lid opening / closing device without increasing the size with an easy configuration.
In addition, since the amount of rotation is increased by sliding as described above, the amount of deformation required for the battery cover 13 to become substantially parallel to the bottom cover 8 can be reduced.
Further, in the present embodiment, the insertion slot of the SD card slot 12 is included in the bridge portion 13b in the front direction of the optical axis from the battery housing portion 9 and in the closed state in the projection plane viewed from the bottom side. Placed in position. As a result, the length of the bridging portion 13b in the direction of the rotating shaft 13c can be shortened with respect to the lid main body portion 13a of the battery cover 13, and the bending rigidity around the rotating shaft 13c can be easily reduced.

In addition, this invention is not limited only to the said conventional structure. For example, the battery cover 13 may be configured such that the bridge portion is not formed and the vicinity of the bearing portion 8a of the bottom cover 8 is entirely deformed.
Further, it is possible to use a lock mechanism using a separate part or the like instead of releasing the lock by a sliding operation.
Further, the present invention can be applied to applications other than battery covers, and can be applied to applications other than video cameras such as digital cameras, mobile phones, and mobile TVs.
Further, it is possible to incorporate an HDD as a recording medium inside the main body 1 and to use another recording medium such as a compact flash (registered trademark) as a recordable recording medium. Furthermore, it is also possible to use only a built-in recording medium or only a recording medium that can be carried out.

It is the perspective view seen from the upper surface side of the video camera in the embodiment of the present invention. It is the perspective view seen from the bottom face side of the video camera in the embodiment of the present invention. It is a perspective view of the decomposition state explaining the structure of the lid opening and closing device in the embodiment of the present invention. It is a perspective view of the state in the middle of assembly explaining the structure of the lid | cover opening / closing apparatus in embodiment of this invention. It is a perspective view of the assembly completion state explaining the structure of the lid | cover opening / closing apparatus in embodiment of this invention. It is a top view of the assembly completion state explaining the structure of the lid | cover opening / closing apparatus in embodiment of this invention. It is the perspective view seen from the bottom face side of the battery accommodating part in embodiment of this invention. (A) is sectional drawing which follows the BB line of FIG. 3D, (b) is sectional drawing which follows the EE line of FIG. 3D. It is sectional drawing in the plane perpendicular | vertical to the rotating shaft which shows the cover closed state of the cover opening / closing apparatus in embodiment of this invention. It is sectional drawing in the plane perpendicular | vertical to the rotating shaft which shows the sliding state of the lid | cover opening / closing apparatus in embodiment of this invention. It is sectional drawing in the plane perpendicular | vertical to a rotating shaft which shows the cover open state of the cover opening / closing apparatus in embodiment of this invention. It is a schematic diagram which shows the state which made force act on the open state of the lid | cover opening / closing apparatus in embodiment of this invention. It is a figure which shows the closed state of the cover opening / closing apparatus in a prior art. It is a figure which shows the cover open state of the cover opening / closing apparatus in a prior art. It is a figure which shows the state which made force act from the open state of the lid | cover opening / closing apparatus in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Lens part 3 Display part 4 Power switch 5 Trigger button 6 L cover 6a Convex part 6b Outer rail part 7 R cover 8 Bottom cover 8a Bearing part 8b Inner rail part 8c Contact part 9 Battery accommodating part 10 Battery 11 Battery eject Knob 12 SD card slot 13 Battery cover 13a Lid body part 13b Bridge part 13c Rotating shaft 13d Claw part 14 Bottom plate 14a Tip part 15 Battery plate 16 Opening spring 16a Energizing part 16b Cylindrical surface 17 Claw insertion part

Claims (7)

A lid body portion, a lid having a rotating shaft thereof, and a device main body provided with a bearing portion of the rotating shaft, and the lid is rotated around the rotating shaft from the closed state with respect to the device body. A lid opening and closing device configured to be openable by
The device body has an abutting portion with which the lid abuts when the lid is fully opened,
When a force is applied to the lid in a further opening direction after the lid abuts on the device main body, the vicinity of the bearing portion has a deforming portion that deforms in the same rotational direction as the lid. A lid opening and closing device.   The lid opening / closing apparatus according to claim 1, wherein a part of the lid main body portion includes a bridging portion having a low bending rigidity around the rotation axis.   The lid opening / closing device according to claim 2, wherein the bridging portion is formed at a position where the bridging portion comes into contact with the contact portion.   After the lid comes into contact with the device main body, when a force is further applied to the lid in the opening direction, the deforming portion is deformed, and the lid is brought into close contact with the device main body. The lid opening / closing device according to any one of claims 1 to 3.   After the lid comes into contact with the device main body, if a force is further applied to the lid in the opening direction, the deforming portion and the bridging portion are deformed, and the lid is in close contact with the device main body. The lid opening / closing device according to claim 2, wherein the lid opening / closing device is provided.   The lid opening / closing device according to any one of claims 1 to 5, wherein an appearance surface of the lid and the device body in the closed state is substantially flush.   7. The lock mechanism according to claim 1, further comprising a lock mechanism that allows the lid to slide from a closed state to an open state by sliding in a direction perpendicular to the rotation axis. Lid opening and closing device.

Images