JP5220362B2 - Lid structure - Google Patents

Description

  The present invention relates to a structure of a lid that rotates to open and close.

  The lid is used, for example, to close the opening of the battery compartment of the camera. A user opens and closes the battery stored in the battery chamber after closing the lid, and closes the lid to prevent the battery stored in the battery chamber from coming out of the battery chamber.

In a configuration in which the entire lid is completely removed from the battery chamber, the lid may be lost. In order to prevent this, a configuration is known in which a lid is rotatably attached around the opening of a battery chamber (Patent Document 1).
Japanese Patent Laid-Open No. 11-232182

  However, when the lid is opened, the surface around the rotation axis of the lid may collide with the exterior of the camera and be damaged. If the lid is scratched, the overall aesthetics of the camera will be impaired. Also, when the lid is opened and the battery is inserted or removed, the lid may close against the user's intention. This impairs the operability of the camera.

  The present invention has been made in view of these problems, and an object thereof is to obtain a lid structure that improves the operability of the lid while preventing the lid from being damaged.

  The lid structure according to the first invention of the present application has a bearing portion into which the rotary shaft is fitted, a lid cover portion extending from the bearing portion and covering the covering portion, and a lid member that rotates around the rotary shaft, and an elastic member A cover member having an inner surface that covers the covering portion and a surface that is the back side of the inner surface, and the over-opening prevention portion rotates the lid member to a predetermined position. When it does, it engages with the outer peripheral surface or surface of a bearing part, It is characterized by the above-mentioned.

  It is preferable that the radius of curvature of the outer periphery of the bearing portion increases as it approaches the surface from the bearing portion, and it is more preferable that the overopening prevention portion is configured to extend in parallel to the rotation axis.

  The stopper member preferably includes a reinforcing rib that protrudes from the overopening prevention portion in the circumferential direction of the rotating shaft.

  Furthermore, the stopper member includes first and second cover portions that cover both ends of the rotating shaft, and the overopening prevention portion is provided between the first and second cover portions, and the first and second cover portions are provided. It is even better if it connects.

  The lid structure according to the second invention of the present application has a bearing portion into which the rotary shaft is inserted, and is composed of a lid member that rotates around the rotary shaft and an elastic member, and prevents the closure from extending in a direction perpendicular to the rotary shaft. A stopper member having a portion, the lid member has an engagement groove on an outer peripheral surface of the bearing portion, and the close prevention portion engages with the engagement groove when the lid member rotates to a predetermined position. It is characterized by.

  The stopper member extends in parallel with the rotation shaft between the first and second cover portions covering both ends of the rotation shaft and the first and second cover portions, and connects the first and second cover portions. It is preferable that the closing prevention portion is configured to extend from the connection portion.

  Further, the stopper member may be any member provided with a reinforcing rib protruding from the connecting portion in the circumferential direction of the rotating shaft.

  Further, the lid member has a lid cover portion that extends from the bearing portion and covers the cover portion, the lid cover portion has an inner surface that covers the cover portion and a surface that is the back side of the inner surface, and the radius of curvature of the outer periphery of the bearing portion is It is preferable that it increases as it approaches the surface of the lid cover portion from the bearing portion.

  A camera according to a third invention of the present application includes the lid structure.

  According to the present invention, it is possible to obtain a lid structure that improves the operability of the lid while preventing the lid from being scratched.

  Hereinafter, an embodiment of a lid structure according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a camera 100 having a lid structure as viewed from the bottom side 110.

  A liquid crystal display unit 121 and a button 122 for operating the camera 100 are provided on the back surface 120 of the camera 100. The user takes a picture while viewing the image displayed on the liquid crystal display unit 121, and displays the photographed image on the liquid crystal display unit 121 using the button 122.

  A battery chamber lid member 210 and a tripod hole 130 are provided on the bottom surface 110 of the camera 100. The lid structure in the present embodiment is used as a battery chamber lid structure 200. The lid member 210 rotates about an axis provided at the first corner 140 of the camera 100 as a rotation axis. The user opens the lid member 210 and inserts / removes the battery into / from the battery chamber.

  Next, the lid structure 200 will be described with reference to FIGS.

  A cylindrical hole 161 is provided in a corner portion of the front cover 160 constituting the second corner portion 141 of the camera 100. A hole (not shown) corresponding to the hole 161 is also provided at the corner of the back cover 150. The back cover 150 is attached to the front cover 160 by screws (not shown) that fit into these holes. A first shaft support portion 151 having a cylindrical loose fitting hole 152 is provided at a corner portion of the back cover 150 constituting the first corner portion 140 of the camera 100. Similarly, the first corner portion 140 is provided. Is provided with a second shaft support portion 162 in which a screw hole 163 is opened.

  An O-ring (not shown) is provided between the front cover 160 and the back cover 150. When the back cover 150 is attached to the front cover 160, the O-ring is pressed by the O-ring pressing portion 165 that protrudes toward the back cover 150 from the joint surface 164 of the front cover 160 with the back cover 150. This prevents moisture from entering the inside 101 of the camera 100 from the joint surface 164 between the front cover 160 and the back cover 150.

  The lid structure 200 includes a lid member 210 that is pivotally supported by a rotating shaft 410 and a stopper member 300 that is provided so as to cover both ends of the rotating shaft 410.

  The lid member 210 includes a bearing portion 220 in which a bearing hole 221 into which the rotating shaft 410 is inserted is opened in the width direction, and a lid cover portion 240 extending from the bearing portion 220. The lid cover portion 240 has an inner surface 244 that covers the cover portion 112 and a front surface 241 that is the back surface of the inner surface 244. The width | variety of the cover cover part 240 and the axial direction length of the bearing part 220 are the same.

  The bearing portion 220 has an outer peripheral surface 222 that is parallel to the axis thereof. The outer peripheral surface 222 is continuous with the surface 241. The radius of curvature of the outer periphery of the bearing portion 220 increases as it approaches the surface 241 of the lid cover portion 240 from the bearing portion 220. First and second engagement grooves 223 and 224 are provided on the outer peripheral surface 222 of the bearing portion 220. The first and second engagement grooves 223 and 224 are provided on a straight line parallel to the rotation shaft 410 and at the end in the width direction of the lid member 210. The cross section of the first and second engagement grooves 223 and 224 in the direction perpendicular to the rotation axis 410 is V-shaped. The lengths of the first and second engagement grooves 223 and 224 in the axial direction of the bearing portion 220 are about 1/5 of the axial length of the bearing portion 220. The positions of the first and second engagement grooves 223 and 224 in the circumferential direction of the bearing portion 220 extend the outer surface 111 of the camera 100 when the lid member 210 is most opened, that is, when it is opened approximately 90 degrees. The position is on the surface. Since the first and second engagement grooves 223 and 224 are provided in a part of the bearing portion 220 in the axial direction and do not continue over the entire length in the axial direction, the first and second engagement grooves 223 and 224 are provided. However, the strength of the bearing portion 220 does not decrease.

  An opening / closing lever 242 is provided at the tip of the lid cover 240. The opening / closing lever 242 engages with a lever engaging portion 113 provided in the covering portion 112 to prevent the lid member 210 from opening against the user's intention. The open / close lever 242 includes a slide protrusion 243 that is exposed from the surface of the lid cover 240. The user slides the slide protrusion 243 to open and close the lid member 210.

  The rotating shaft 410 is provided on the stepped screw 400. A male screw portion 420 is provided at one end of the stepped screw 400, and a screw head 430 is provided at the other end. Between the male screw part 420 and the screw head part 430, a cylindrical cylindrical part 410 having a diameter larger than that of the male screw part 420 and not having a screw cut is provided. This cylindrical portion 410 becomes the rotation shaft 410. A step portion 411 is formed between the male screw portion 420 and the rotating shaft 410.

  The stopper member 300 includes first and second cover portions 310 and 320 that cover both ends of the rotating shaft 410, and a connecting portion 330 that extends in parallel with the rotating shaft 410 and connects the first and second cover portions 310 and 320. An overopening prevention portion 340 extending in a direction perpendicular to the rotation shaft 410 from the connection portion 330; and first and second close prevention portions 351 and 352 extending in a direction perpendicular to the rotation shaft 410 from the overopening prevention portion 340; Is provided.

  The length of the overopening prevention portion 340 in the axial direction of the bearing portion 220 is substantially equal to the width of the lid member 210.

  The first and second close prevention portions 351 and 352 have a rectangular parallelepiped shape extending in the axial direction of the rotating shaft 410, and the lengths in the extending direction are the lengths of the overopening prevention portion 340 in the axial direction of the bearing portion 220. Of about 1/7. The lengths of the first and second closing prevention portions 351 and 352 in the axial direction of the rotating shaft 410 are shorter than the lengths of the first and second engaging grooves 223 and 224 in the axial direction of the rotating shaft 410. Therefore, the first and second close prevention portions 351 and 352 easily engage with the first and second engagement grooves 223 and 224.

  A concave portion 141 for attaching the bearing portion 220 of the lid member 210 is provided in the first corner portion 140 of the camera 100. The recess 141 extends from the back cover 150 side of the front cover 160 toward the front surface of the camera 100. A second shaft support portion 162 is provided at the front side end of the recess 141.

  A pressing groove 142 is provided at the side surface side end of the camera 100 in the recess 141 over the entire length of the front cover 160 and the back cover 150 in the thickness direction. The pressing groove 142 engages with the connecting portion 330 of the stopper member 300 as will be described later.

  A bearing portion 220 is accommodated in the recess 141, and a stepped screw 400 is inserted from a loose fitting hole 152 provided at a corner of the back cover 150. The stepped screw 400 passes through the loose fitting hole 152 and then loosely fits with the bearing hole 221. Then, the screw hole 163 and the male screw portion 420 of the stepped screw 400 are screwed together. Thereby, the lid member 210 is attached to the camera 100.

  At this time, the stepped portion 411 engages with the surface of the second shaft support portion 162 on the concave portion side, so that the stepped screw 400 is not inserted into the screw hole 163 beyond the length of the male screw portion 420. That is, the distance between the first shaft support portion 151 and the second shaft support portion 162 is maintained at a length obtained by subtracting the thickness of the first shaft support portion 151 from the length of the rotation shaft 410.

  The length of the rotation shaft 410 is substantially equal to the length obtained by adding the length of the concave portion 141 and the thickness of the first shaft support portion 151. Therefore, the back cover 150 is fixed to the front cover 160 without play. The length of the bearing hole 221 is slightly shorter than the length of the recess 141. Therefore, the lid member 210 is not pressed by the first and second shaft support portions 151 and 162 and is rotatable about the rotation shaft 410.

  After the stepped screw 400 is attached, the stopper member 300 is attached. The first and second cover portions 310 and 320 are respectively bonded to the first and second shaft support portions 151 and 162 with an adhesive or the like.

  The first shaft support portion 151 is provided so as to cut out the back surface 120 of the camera 100. The shapes of the first cover portion 310 and the first shaft support portion 151 viewed from the back surface 120 side of the camera 100 are substantially the same. Therefore, the first shaft support portion 151 and the first cover portion 310 are engaged with each other without providing a gap between the back surface 120 and the first cover portion 310. Similarly, the second shaft support portion 162 is provided so as to cut out the front surface of the camera 100. The shapes of the second cover part 320 and the second shaft support part 162 viewed from the front side of the camera 100 are substantially the same. Therefore, the second shaft support portion 162 and the second cover portion 320 engage with each other without providing a gap between the front surface of the camera and the second cover portion 320.

  The connecting portion 330 is accommodated in the holding groove 142 so as to be flush with the outer side surface 111 of the camera 100. The back surface 331 of the surface of the connecting portion 330 from which the overopening prevention portion 340 protrudes and the surface 332 inside the camera 100 are engaged with the pressing groove 142. The connection portion 330 is provided with a reinforcing rib 333 that protrudes from the surface of the connection portion 330 inside the camera 100 toward the inside of the camera 100 and toward the circumferential direction of the rotation shaft 410.

  Hereinafter, the operation of the lid structure 200 will be described with reference to FIGS. 4 to 6.

  FIG. 4 shows a state where the lid member 210 closes the battery chamber 114.

  The stopper member 300 does not engage with any part of the lid member 210 and has a predetermined gap between the stopper member 300 and the lid member 210. Due to the presence of this gap, the lid member 210 rotates without receiving resistance from the stopper member 300 until it comes into contact with the stopper member 300.

  FIG. 5 shows a state in which the lid member 210 is rotated most greatly. Hereinafter, the operation of the overopening prevention unit 340 will be described.

  As described above, the radius of curvature of the outer periphery of the bearing portion 220 increases as it approaches the surface 241 of the lid cover portion 240 from the bearing portion 220. Therefore, when the lid member 210 is closed, the outer peripheral surface 222 of the bearing portion 220 does not come into contact with the overopening prevention portion 340. However, as the lid member 210 is opened, the outer peripheral surface 222 of the bearing portion 220 approaches the overopening prevention portion 340. When the lid member 210 rotates approximately 90 degrees or more, the outer peripheral surface 222 of the bearing portion 220 contacts the overopening prevention portion 340. Since the overopening preventing portion 340 is made of an elastic member, the lid member 210 is prevented from further rotating without damaging the outer peripheral surface 222. Since the reinforcing rib 333 reinforces the overopening prevention part 340, the possibility that the force applied from the outer peripheral surface 222 will crush the overopening prevention part 340 is reduced.

  Thereby, the lid member 210 does not come into contact with the outer surface 111 of the camera 100 and is not damaged.

  FIG. 6 shows a state where the lid member 210 is engaged with the stopper member 300. Hereinafter, the operation of the first and second closing prevention portions 351 and 352 will be described.

  As the lid member 210 is opened, the outer peripheral surface 222 of the bearing portion 220 approaches the first and second close prevention portions 351 and 352. When the lid member 210 rotates approximately 90 degrees, the outer peripheral surface 222 of the bearing portion 220 comes into contact with the first and second close prevention portions 351 and 352, and the first and second engagement grooves 223 and 224 are The first and second close prevention portions 351 and 352 engage with each other. As the radius of curvature of the outer periphery of the bearing portion 220 increases from the bearing portion 220 toward the surface 241 of the lid cover portion 240, the first and second engagement grooves 223, 224 and the first and second closures are surely made. The prevention parts 351 and 352 can be engaged. By the engagement, a frictional force is generated between the first and second closing prevention portions 351 and 352 and the first and second engaging grooves 223 and 224. This frictional force opposes the force that the lid member 210 rotates in the direction of the covering portion 112 and prevents the lid member 210 from rotating in the direction of the covering portion 112 against the user's intention. Since the stopper member 300 is held between the pressing groove 142 and the outer peripheral surface 222, the lid member 210 includes the first and second engagement grooves 223 and 224 and the first and second closing prevention portions 351. , 352 does not rotate in the direction of further opening from the position where it is engaged.

  According to the present invention, by using few components such as the lid member 210 and the stopper member 300, the lid member 210 is prevented from opening too much and colliding with the cover of the camera 100 and being scratched, and the lid member 210 is opened. It becomes possible to hold in position.

  In addition, the outer periphery of the bearing part 220 does not need to be comprised by a curved surface. The engagement groove may be engaged with the closing prevention portion, or the outer peripheral surface of the bearing portion 220 may be engaged with the overopening prevention portion 340, for example, a prism.

  In addition, two closing prevention portions and two engaging grooves may not be provided. The number of the closing prevention portions and the engagement grooves is such that a force that prevents the lid member 210 from rotating toward the covering portion 112 against the user's intention can be applied from the stopper member 300 to the lid member 210. Any number may be sufficient.

  The length of the close prevention part and the engagement groove is such that a force that prevents the lid member 210 from rotating toward the covering part 112 against the user's intention is applied from the close prevention part to the engagement groove. As long as the length is as long as possible.

It is a perspective view of a camera provided with one embodiment of a lid structure in the present invention. It is an exploded view of the lid structure provided in the camera. It is a perspective view of a stopper member. It is a fragmentary sectional view in the IV-IV line of FIG. It is a perspective view of a camera. It is a fragmentary sectional view in the VI-VI line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Camera 210 Cover member 220 Bearing part 223 1st engagement groove 224 2nd engagement groove 240 Cover part 300 Stopper member 351 1st close prevention part 352 2nd close prevention part 400 Stepped screw 410 Rotation axis

Claims (8)

A lid member that has a bearing portion into which the rotary shaft is inserted and a lid cover portion that extends from the bearing portion and covers the covering portion, and rotates around the rotary shaft;
A stopper member having an overopening prevention portion made of an elastic member and a closing prevention portion extending in a direction perpendicular to the rotation axis;
The lid cover portion has an inner surface that covers the cover portion and a surface that is the back side of the inner surface,
The overopening prevention portion engages with the outer peripheral surface or the surface of the bearing portion when the lid member rotates to a predetermined position,
From Part position of the bearing portion facing the stopper member when closing the lid member, to the site where the outer peripheral surface or the surface and the KaHiraku prevention unit is engaged, the radius of curvature of the outer periphery of the bearing portion Increased,
The lid member includes an engagement groove on an outer peripheral surface of the bearing portion,
The closure preventing portion is a lid structure that engages with the engagement groove when the lid member rotates to a predetermined position. The stopper member includes first and second cover portions that cover both end portions of the rotating shaft;
A connecting portion extending between the first and second cover portions and extending in parallel with the rotation shaft to connect the first and second cover portions;
The lid structure according to claim 1, wherein the closing prevention portion extends from the connection portion.   The lid structure according to claim 1, wherein the stopper member includes a reinforcing rib that protrudes from the connection portion in a circumferential direction of the rotation shaft. The lid member has a lid cover portion that extends from the bearing portion and covers the covering portion,
The lid cover portion has an inner surface that covers the cover portion and a surface that is the back side of the inner surface,
The lid structure according to any one of claims 1 to 3, wherein a radius of curvature of an outer periphery of the bearing portion increases from the bearing portion toward a surface of the lid cover portion.   The lid structure according to any one of claims 1 to 4, wherein the overopening prevention portion extends in parallel to the rotation axis.   The said stopper member is a cover structure in any one of Claim 1 to 5 provided with the reinforcement rib which protrudes in the circumferential direction of the said rotating shaft from the said overopening prevention part. The stopper member includes first and second cover portions that cover both ends of the rotating shaft,
The lid structure according to any one of claims 1 to 6, wherein the overopening prevention portion is provided between the first and second cover portions and connects the first and second cover portions.   A camera comprising the lid structure according to claim 1.

Images