JP2016525724A - Lens cap - Google Patents

Abstract

The present invention relates to a lens cap that can be used for lenses of various sizes and can store a separate lens cap, and has a space inside and movable grooves arranged to face each other. A casing having a disc shape so as to be attached to an end of the camera lens, a movable part body installed inside the casing and exposed through the movable groove, and the movable part connected to the movable part body A movable portion having a spring portion that applies an elastic force to the main body, and two or more fixed protrusions are formed on the first surface of the casing so as to protrude concentrically, and the fixed protrusion is formed on the movable portion main body. A moving projection corresponding to is arranged.

Description

  The present invention relates to a lens cap, and more particularly to a lens cap that can accommodate lenses of various sizes and can store other lens caps.

  In general, a lens cap used at the end of a camera lens is detachably installed to protect a lens provided in front of the camera lens.

  Such a cap can be attached to and detached from a lens locking portion formed in front of the camera lens. When the camera is used, the lens cap must be removed from the camera lens.

  Therefore, if the lens cap is removed for taking a picture, the lens cap is a completely separate part from the camera, so the camera user generally keeps the lens cap in a pocket or bag. . As a result, lens caps are often lost.

JP2011-252988

  The object of the present invention devised to solve the above-described problems is related to the size of the camera lens by forming the fixed protrusion and the variable protrusion with various diameters so as to be compatible with lenses of various sizes. An object of the present invention is to provide a lens cap that can be mounted without any problem.

  In order to achieve the above object, the present invention includes a casing having a disk shape so as to be mounted on an end portion of a camera lens, having a space inside, movable grooves arranged so as to face each other, and the like. A movable part that is installed inside the casing, has a spring part that is exposed to the movable part through the movable groove, and is connected to the movable part body to apply an elastic force to the movable part body. The lens cap is characterized in that two or more fixed protrusions are formed on the first surface so as to protrude concentrically, and the movable portion main body is provided with a moving protrusion corresponding to the fixed protrusion.

  One or more fixed protrusions project from the second surface of the casing, and a movable protrusion corresponding to the fixed protrusion formed on the second surface of the casing is disposed on the movable body. It is characterized by.

  Further, the two or more fixing protrusions formed on the first surface of the casing are different in height from each other.

  Further, the two or more moving projections positioned on the first surface of the casing are different in height from each other.

  The spring part is connected to the movable part main body to form a closed curve.

  Through the present invention, it is possible to handle various camera lenses with a single lens cap. Therefore, a user who uses a plurality of camera lenses does not have to struggle to obtain a lens cap suitable for the camera lens he has. It is sufficient to provide only the lens cap.

  In addition, when using a plurality of camera lenses at the same time, when mounting a lens cap for protecting a camera lens that is not used, the lens cap according to the present invention can be used without the trouble of searching for a lens cap that is mounted only on the camera lens. Use it.

  Particularly when the camera lens is replaced, the lens cap of the present invention can be used as it is, which is very advantageous in terms of cost.

It is the perspective view which looked at the lens cap by the Example of this invention from one direction. It is a disassembled perspective view of the lens cap seen from the same direction as FIG. It is the perspective view which looked at the lens cap of FIG. 1 from the other direction. It is a disassembled perspective view of the lens cap seen from the same direction as FIG. It is a schematic sectional drawing of the example 1 of application of the lens cap of FIG. It is a schematic sectional drawing of the example 2 of application of the lens cap of FIG. It is a schematic sectional drawing of the example 3 of application of the lens cap of FIG. It is a schematic sectional drawing of the example 4 of application of the lens cap of FIG.

  The present invention will be described below with reference to the drawings and examples. When the reference numerals are given to the constituent elements of the following drawings, the same constituent elements are indicated by the same reference numerals even if they are displayed on other drawings, and the gist of the present invention is unnecessarily obscured. Detailed descriptions of known functions and configurations will be omitted.

  The lens cap 100 basically has a space inside, has movable grooves 106 and 118 arranged so as to face each other, and a casing having a disk shape so as to be attached to the end of the camera lens; A movable part 128 having a spring part 130 that is installed inside the casing, exposes the movable part main body 134 through the movable grooves 106, 118, is connected to the movable part main body 134 and applies elastic force to the movable part main body 134. And including.

  As shown in FIGS. 2 and 4, the casing is configured by a pair of casing halves 102 and 114 being coupled to each other. The coupling protrusion 112 formed on the first casing half 102 is fitted with the coupling frame 122 formed on the edge of the second casing half 114. It is also possible to use other known bonding methods. Accordingly, a space is formed in the casing, and the movable portion 128 is accommodated in the space.

  Movable grooves 106 and 118 are formed in the casing halves 102 and 114, respectively, and the movable part main body 134 of the movable part 128 is exposed to the outside. The movable grooves 106 and 118 function as a guide when the movable part main body 134 moves, and the movable groove the movable part main body 134 moves inside the casing and abuts against the moving protrusion 136 or the knob protrusion 144. It can also serve as a time stopper.

  A movable part mounting protrusion 124 is formed on the first casing half 114. The movable part mounting protrusion 124 is in close contact with the movable part 128, particularly the spring part 130, to prevent the movable part 128 from being detached, and to ensure the movement of the movable part main body 134 stably.

  The first casing half 114 is formed with a spring limiting protrusion 126. The spring limiting protrusion 126 is formed around the spring part 130 to prevent the spring part 130 from extending vertically, and the movable part main body 134 is external to the casing 102 as shown in FIG. Provides the limit to leave.

  The first casing half 102 is formed with two or more fixing projections 108 and 110 concentrically. In the embodiment of the present invention, two fixing protrusions are formed. The fixing protrusions 108 and 110 are attached to the camera lens and serve to block between the camera lens and the casing when viewed from the side. The fixing protrusions 108 and 110 are formed such that the height gradually decreases from the inside toward the outside. This is to prevent the outer fixing protrusion 110 from getting in the way when the inner fixing protrusion 108 is attached to a small camera lens.

  The use of the lens cap 100 of the present invention can be enhanced by forming one or more fixing projections 120 on the second casing half 114 so as to be compatible with camera lenses of different sizes. . In particular, the fixed projection 120 formed on the second casing half 114 has a larger diameter than the fixed projections 104 and 110 formed on the first casing half 102, and corresponds to a larger camera lens. be able to.

  The movable part 128 includes a movable part main body 134 exposed from the casing, and a spring part 130 that is integrally connected to the movable part main body 134 and applies an elastic force to the movable part main body 134.

  The width of the movable portion main body 134 matches the width of the movable grooves 106 and 118, and is movable in the radial direction of the casing in which the movable grooves 106 and 118 are formed.

  The movable part main body 134 is formed with moving protrusions 136, 138, and 146 corresponding to the fixed protrusions 104, 110, and 120, respectively. Among these, two moving protrusions 136 and 138 are formed to protrude toward the first casing half 102, and one moving protrusion 146 is formed to protrude toward the second casing half 114.

  The moving projections 136 and 138 formed on the first casing half 102 have the same height as the fixed projections 104 and 110. Accordingly, the heights of the fixing protrusions 104 and 110 gradually decrease toward the radially outer side. Similarly, the moving projection 146 formed on the second casing half 102 is formed at the same height as the fixed projection 120.

  On the side of the first casing half 102 of the movable part main body 134, a knob groove 140 is formed outside the moving projections 136 and 138 (outside in the radial direction of the casing). The knob groove 140 is a portion that the user grips with a finger, and since the gap between the moving protrusions 136 and 138 is not large, the knob groove 140 can be arranged outside the moving protrusions 136 and 138 so that the finger can come into contact therewith. A sufficiently large space can be provided.

  Further, a knob groove 148 is formed on the second casing half 114 side of the movable part main body 134 on the inner side of the moving projection 146 (inner side in the radial direction of the casing). A knob projection 144 for supporting a finger is formed in the knob groove 148 on the inner side in the radial direction of the casing with respect to the moving projection 146. The knob protrusion 144 abuts on the movable grooves 106 and 118 to limit the moving distance of the movable portion main body 134.

  Further, by forming a margin part 142 on the outer side in the radial direction of the casing of the moving protrusion 146 located on the outermost side of the movable part main body 134, it is utilized as a support surface when the camera lens contacts the moving protrusion 146. be able to.

  The spring part 130 forms a closed curve and is formed integrally with the movable part main body 134. In the embodiment of the present invention, the movable portion main body 134 is integrally formed so as to have a substantially dumbbell shape and to face each other at the waist portion constricted by the dumbbell shape. The shape and material of the spring part 130 are not limited as long as the elastic force is provided to the movable part main body 134 in the radial direction of the casing. The spring part 130 is supported by the movable part mounting protrusions 124 and 126 described above.

  The lens cap 100 according to the embodiment of the present invention is basically configured as described above. Hereinafter, how the lens cap 100 is mounted will be described with reference to FIGS.

  FIG. 5 shows a state in which the lens cap 100 is attached to the camera lens 10 of the camera 1 using the fixed protrusion 108 and the moving protrusion 136 having the minimum radius.

  The camera lens 10 includes a lens 14, a lens casing 12 to which the lens 14 is mounted, a cap mounting portion 18 formed at the front end of the lens casing 12, and the lens casing 12 so as to protect the lens 14. And a protective window 16 located at the front end.

  The lens cap 100 of the present invention is mounted on the cap mounting portion 18 at the front end of the lens casing 12. The lens cap 100 is ready to be inserted into the cap mounting portion 18 by a user holding the knob groove 148 and applying a force to the movable portion 128 toward the center of the casing of the lens cap 100. To do.

  Then, after the fixing protrusion 108 of the lens cap 100 is brought into contact with the cap mounting portion 18, an elastic force is applied by the spring portion 130 by removing the force from the knob groove 148 of the lens cap 100, and The lens cap 100 is mounted while pressing the outer peripheral surface of the moving projection 136 against the inner wall surface of the cap mounting portion 18.

  FIG. 6 shows a state in which the lens cap 100 is attached to the camera lens 10 of the camera 1 using a fixed protrusion 110 and a moving protrusion 138 having a radius larger than that of the fixed protrusion 108. The camera lens 20 has a larger inner diameter than the camera lens 10, but the basic configuration is the same.

  The lens cap 100 of the present invention is mounted on the cap mounting portion 28 at the front end of the lens casing 22. The lens cap 100 is ready for insertion into the cap mounting portion 28 by a user holding the knob groove 148 and applying force to the movable portion 128 in the center direction of the casing of the lens cap 100. .

  Then, after the fixing projection 110 of the lens cap 100 is brought into contact with the cap mounting portion 18, an elastic force is applied by the spring portion 130 by removing the force from the knob groove 148 of the lens cap 100, and The lens cap 100 is mounted while pressing the outer peripheral surface of the moving projection 138 against the inner wall surface of the cap mounting portion 28.

  FIG. 7 shows a state in which the lens cap 100 is attached to the camera lens 10 of the camera 1 using the fixed protrusion 120 and the moving protrusion 146 having the maximum radius. Therefore, unlike the case of FIGS. 5 and 6, the casing is turned over and attached to the camera lens 30. The camera lens 30 has a larger inner diameter than the camera lens 20, but the basic configuration is the same.

  The lens cap 100 of the present invention is mounted on the cap mounting portion 38 at the front end of the lens casing 32. The lens cap 100 is ready for insertion into the cap mounting portion 38 by a user holding the knob groove 140 and applying a force to the movable portion 128 toward the center of the casing of the lens cap 100. .

  Then, after the fixing protrusion 120 of the lens cap 100 is brought into contact with the cap mounting portion 38, an elastic force is applied by the spring portion 130 by removing the force from the knob groove 140 of the lens cap 100, and The lens cap 100 is mounted while pressing the outer peripheral surface of the moving projection 146 against the inner wall surface of the cap mounting portion 38. At this time, the cap mounting portion 38 is supported in contact with a margin 142 formed outside the moving projection 146.

  FIG. 8 shows a state in which another lens cap 4 is attached to the lens cap 100 according to the embodiment of the present invention and the lens cap 100 is used as a lens holder.

  The spring portion 130 can apply an elastic force to the movable portion main body 134 in both the radially inner direction and the outer direction of the casing. Therefore, it is possible to insert the lens cap 4 into the moving projection 146 and support it. In the insertion method, a force is applied in a state where one corner of the lens cap 4 is in contact with one moving protrusion 146 of the pair of movable portion main bodies 134, and the one moving protrusion 146 is forced outward in the radial direction. While adding, the procedure is performed by inserting the other corner into the other moving projection 146. What is necessary is just to perform the order opposite to the said method when extracting.

  As described above, the present invention has been described with reference to the preferred embodiments. However, those skilled in the art having ordinary knowledge in the technical field to which the present invention pertains will be understood from the spirit and scope of the present invention described in the claims. It will be understood that various modifications and changes can be made to the present invention without departing from the scope.

1, 2, 3 Camera 4, 100 Lens cap
10, 20, 30 Lens assembly 12, 22, 32 Lens casing
14, 24, 34 Lens 16, 26, 36 Protective window
18, 28, 38 Cap mounting part 40 Cap body
42 Fixing projections 102, 114 Half casing
104, 116 Mounting plate 106, 118 Movable groove
108, 110, 120 Fixed protrusion 112 Bonding protrusion
122 coupling frame 124 movable part mounting projection
126 Spring limit projection 128 Movable part
130 Spring part 134 Movable part body
136, 138, 146 Moving projection 140, 148 Knob groove
142 Spare part 144 Knob protrusion

Claims (5)

A casing having a space inside, having movable grooves arranged to face each other, and having a disk shape so as to be attached to the end of the camera lens;
A movable part that is installed inside the casing and exposed through the movable groove, and a movable part that is connected to the movable part body and has a spring part that applies an elastic force to the movable part body,
Two or more fixing protrusions are formed on the first surface of the casing so as to protrude concentrically,
The lens cap according to claim 1, wherein a movable protrusion corresponding to the fixed protrusion is disposed on the movable body. One or more fixed protrusions protrude from the second surface of the casing, and a movable protrusion corresponding to the fixed protrusion formed on the second surface of the casing is disposed in the movable body. The lens cap according to claim 1. The lens cap according to claim 1, wherein the two or more fixing protrusions formed on the first surface of the casing have different heights. The lens cap according to claim 1, wherein the two or more moving protrusions positioned on the first surface of the casing have different heights.   The lens cap according to claim 1, wherein the spring part is connected to the movable part main body to form a closed curve.

Images