JP3752822B2 - EVF slide lock mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an EVF slide lock mechanism effective for use in an electric view finder (hereinafter referred to as EVF) used for a video camera or the like.
[0002]
[Prior art]
In recent years, there has been a great demand for downsizing video cameras, and in particular, there is a high demand for miniaturization of EVF units that are difficult to downsize in order to secure a predetermined optical path.
[0003]
Therefore, as one means for improving this, there is a technique in which a slide mechanism is provided in the EVF, and the EVF is accommodated in a small size when not in use, and is extended during use to ensure a necessary optical path. A conventional EVF slide mechanism will be described below.
[0004]
FIG. 11 is a perspective view of a video camera having a conventional EVF slide mechanism. An EVF unit 1 having an EVF slide mechanism is fixed to the video camera main body 2. 11A shows a state where the EVF unit 1 is stored, FIG. 11B shows a state where the EVF unit 1 is pulled out in the direction of arrow A, and FIG. 11C shows a state where the EVF unit is pulled out and then raised in the direction of arrow C. (Hereinafter, referred to as “tilted up state”, and correspondingly, a state that does not occur only by pulling out is referred to as “tilted DOWN state”).
12 and 13 are partially exploded perspective views of the EVF slide mechanism.
[0005]
In the figure, reference numeral 4 denotes an EVF slide created by bending an iron plate, and a stopper guide hole 4a that restricts the position at the time of storage / drawing and is relatively movable by a predetermined first distance and a predetermined first A stopper outer claw (not shown) that can move relative to the distance of 2 is provided. An LCD holder 6 made of synthetic resin is provided with a stopper outer claw 6a. Reference numeral 5 denotes a large EVF slide created by bending an iron plate, and a stopper guide hole (not shown) is formed. The EVF slide large 5 is attached so as to surround the EVF slide 4. The attachment is performed by elastically deforming a part of the EVF slide 5 and inserting the stopper outer claw 4b into the stopper guide hole 5a. Similarly, the EVF slide 4 is attached so as to surround the LCD holder 6. The attachment is performed by elastically deforming the EVF slide 4 so that the stopper outer claw 6a is inserted into the stopper guide hole 4a. In this way, the LCD holder 6, the EVF slide 4, and the EVF slide large 5 are combined.
[0006]
An EVF cover 22 is fixed outside the large EVF slide 5. In addition, an image display unit 25 is stored in the LCD holder 6 in advance.
[0007]
The LCD holder 6 has an opening 6 b for viewing an image displayed by the image display unit 25. Here, a transparent protective cover 8 is attached and fixed in order to prevent dust from entering from the outside and adhering to the image display unit and becoming unsightly.
[0008]
18 is an eye cap, and 32 is a diopter adjustment mechanism unit fitted and fixed to the eye cap 18. A claw 32 a provided on the diopter adjustment mechanism unit 32 is engaged with an engagement hole 5 b provided on the EVF slide large 5. Then, the other is fixed to the EVF slide large 5 with the fixing screw 20, and the EVF unit 1 is configured.
[0009]
The diopter adjustment mechanism unit 32 is configured as follows.
The lens 11 is engaged and fixed in advance with a cylindrical lens holder 10 by a claw 10b. Cam followers 10 a are provided above and below the lens holder 10. On the other hand, a single-sided cam 13a that makes one-side contact with the cam follower 10a is formed on the inner periphery of the thin cylindrical diopter adjustment ring 13. 9 is a guide holder, and 12 is a coil spring that constantly biases the lens holder 10 in the direction of arrow Z. The coil spring 12, the lens holder 10, and the diopter adjustment ring 13 are inserted into the guide holder 9 in this order. The cam follower 10 a is inserted and attached to a guide hole 9 b formed in the guide holder 9. Each member is held by engaging the end face 13b of the diopter adjustment ring 13 with the claw 9a provided on the guide holder 9, and the assembly is completed.
[0010]
The operation of the conventional EVF slide mechanism configured as described above will be described with reference to FIGS.
[0011]
First, as shown in FIG. 12, the end face of the stopper outer claw (not shown) and the stopper guide hole (not shown), and the stopper outer claw 6a and the end face of the stopper guide hole 4a all come into contact with each other to reach a predetermined drawing position. The drawer is stored in a predetermined position.
[0012]
About the diopter adjustment mechanism unit 32, the diopter adjustment ring 13 is rotated so that the lens 11 is adjusted to a position according to the visual acuity of the user. In the state where the EVF unit 1 is pulled out, the cam follower 10a is regulated by the single-sided cam 13a by the coil spring 12, so that the EVF unit 1 is held at a position according to the visual acuity of the user. On the other hand, at the time of storage, the lens holder 10 and the transparent protective cover 8 come into contact with each other during the storage process. Here, since the position of the lens holder 10 is restricted only by the reversing direction of the coil spring 12 by the single-sided cam 13a, the coil spring 12 contracts further when the storing operation is continued, and the single-sided cam 13a and the cam follower unit 10a. Leave. In this way, it can be stored compactly regardless of the position of the lens.
[0013]
The holding force at the drawer position or the storage position is obtained by a fitting force between a click spring (not shown) fixed to the LCD holder 6 and a click hole (not shown) provided on the EVF slide large 5.
[0014]
[Problems to be solved by the invention]
However, in the above-described conventional configuration, when the EVF slide mechanism is extended during use and further tilted up as shown in FIG. 11C, the EVF slide mechanism is lighted with a force stronger than the holding force of the click spring. When pushed in the axial direction (in the direction of arrow D in the figure), the EVF cover tip collides with the video camera body, causing a problem that both are damaged.
[0015]
The present invention solves the above-described problem, and provides a lock mechanism that moves in accordance with tilt UP / tilt DOWN of the EVF slide mechanism and is provided with a regulating member that regulates / releases the movement of the guide shaft at the tip of the guide shaft. Accordingly, an object of the present invention is to provide an EVF slide lock mechanism that prevents the EVF cover and the video camera body from being damaged.
[0016]
[Means for Solving the Problems]
In order to achieve this object, an EVF slide lock mechanism according to the present invention loosely fits a first tubular thin member and the first tubular thin member inside such that the first tubular thin member can be relatively moved by a predetermined first distance. A second tubular thin member, a third tubular thin member loosely fitted inward so that the second tubular thin member is relatively movable by a predetermined second distance, and the first tubular thin member A guide bearing portion provided in the member, and a position in which the first and second tubular thin members are substantially inserted into the third tubular thin member, and are slidably fitted into the guide bearing portion. Between the first and third cylindrical thin-walled members, and the first to third cylindrical thin-walled members are pulled out and fixed to the third cylindrical thin-walled member. An EVF slide mechanism provided with a guide shaft, When the first to third cylindrical thin-walled members are substantially inserted, they are located in the EVF cover that covers the EVF slide mechanism, and when they are substantially discharged, they are exposed outside the EVF cover, An EVF hinge mechanism interposed between the first thin cylindrical member and the camera body for non-rotating to apply a predetermined load so as to pivot the EVF slide mechanism by a predetermined angle. An opening through which the guide shaft penetrates in a state and a restricting portion with which the guide shaft abuts in a rotating state include a lock mechanism that moves in response to the rotation of the EVF slide mechanism.
[0017]
With this configuration, an EVF cover or a video is provided by providing a lock mechanism that moves in accordance with tilt UP / tilt DOWN of the EVF slide mechanism and that has a restricting member that restricts / cancels movement of the guide shaft at the tip of the guide shaft. It is possible to provide an EVF slide lock mechanism that prevents damage to the camera body.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a first cylindrical thin member and a second cylinder that is loosely fitted inside so that the first cylindrical thin member can be relatively moved by a predetermined first distance. A thin cylindrical member, a third cylindrical thin member that is loosely fitted inward so that the second cylindrical thin member can be relatively moved by a predetermined second distance, and a guide that is provided in the first cylindrical thin member. The bearing portion and the guide bearing portion are slidably inserted, and the first and second cylindrical thin members are substantially inserted into the third cylindrical thin member, and are substantially discharged. A guide shaft fixed to the third cylindrical thin-walled member, having a length that allows the first to third cylindrical thin-walled members to be pulled out. An EVF slide mechanism comprising: When the first to third cylindrical thin-walled members are substantially inserted, they are located in the EVF cover that covers the EVF slide mechanism, and when they are substantially discharged, they are exposed outside the EVF cover, An EVF hinge mechanism interposed between the first thin cylindrical member and the camera body for non-rotating to apply a predetermined load so as to pivot the EVF slide mechanism by a predetermined angle. Tilt-up state is achieved by the lock mechanism that moves according to the rotation of the EVF slide mechanism, in which the opening through which the guide shaft penetrates in the state and the restricting portion with which the guide shaft contacts in the rotation state Then, even if the EVF unit is pushed in the optical axis direction, it is not slid and stored, so that the EVF unit and the video camera body can be prevented from being damaged or damaged.
[0019]
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
(Embodiment 1)
FIG. 1 is a perspective view of a video camera having an EVF slide lock mechanism according to the present embodiment. An EVF unit 101 having an EVF slide lock mechanism is fixed to a video camera main body 102. 1A shows a state in which the EVF unit 101 is housed, FIG. 1B shows a state in which the EVF unit 101 is pulled out, and FIG. 1C shows a state that occurs after the EVF unit 101 is pulled out. It is. FIG. 2 is an exploded perspective view of the entire EVF unit including the EVF slide lock mechanism. 3 to 7 are partial exploded perspective views of the EVF slide mechanism and the EVF slide lock mechanism.
[0020]
In FIG. 2A, 103 is a small EVF slide which is a first cylindrical thin member, 104 is an EVF slide which is a second cylindrical thin member, and 105 is an EVF slide which is a third cylindrical thin member. All of them are made by deep drawing of iron plate. A slide click spring 131 that is a restricting mechanism that gives a predetermined restricting force is fixed to the EVF slide large 105 by caulking. The EVF slide 104 is provided with a click hole 104 a that fits into the tip of the slide click spring 131. The EVF slide 104 is provided with a stopper inner claw 104b and a stopper outer claw 104c for restricting the storage / drawing position. Correspondingly, the EVF slide small 103 is provided with a stopper guide hole 103b capable of relative movement by a predetermined first distance, and the EVF slide large 105 is provided with a stopper capable of relative movement by a predetermined second distance. Guide holes 105b are provided respectively.
[0021]
The EVF slide large 105 is attached so as to surround the EVF slide 104. The attachment is performed by energizing the vicinity of the stopper outer claws 104c on both side surfaces of the EVF slide 104 as shown in the figure F and elastically deforming the stopper outer claws 104c into the stopper guide holes 105b. Similarly, the EVF slide middle 104 is attached so as to surround the EVF slide small 103. The attachment is performed by energizing both side surfaces of the EVF slide small 103 as shown in the figure E and elastically deforming the stopper inner claw 104b into the stopper guide hole 103b. In this way, the EVF slide small 103, the EVF slide middle 104, and the EVF slide large 105 are combined.
[0022]
106 is an LCD holder for holding the LCD, and 107 is a light-shielding shade for preventing external light from leaking through the gap between the EVF slide small 103 and the EVF slide middle 104, and is fixed to the LCD holder 106 for housing the image display unit. . A thin plate portion of silicon rubber is formed on the light-shielding shade 107 so as to always elastically bias the inner wall of the EVF slide 104 to prevent light leakage. Further, in order to securely fix the soft rubber part to the LCD holder 106, the silicon light-shielding shade 107 is configured as an integral part by insert-molding the silicon rubber into a substrate part made of thin sheet metal.
[0023]
The LCD holder 106 is provided with two guide bearing portions 106a. Further, the LCD holder 106 has an opening for viewing an image displayed by the image display unit. Here, a transparent protective cover 108 is fitted in order to prevent dust from entering from the outside and adhering to the image display unit and becoming unsightly. Note that the dust attached to the surface of the transparent protective cover 108 is hardly visible because the focus is shifted. Further, since the image light leaks from the peripheral edge of the transparent protective cover 108 and is unsightly, a protective cover sheet 108a for shielding this light is attached to the surface of the transparent cover 108. The LCD holder 106 configured as described above is inserted into the EVF small slide 103, and is engaged and fixed by the engagement claw 106b and the engagement recess 103c.
[0024]
A guide shaft holder 109, in which two guide shafts 109a, which are guide shafts slidably fitted into the two guide bearing portions 106a, are press-fitted and fixed, is attached to the EVF slide large 105 with guide shaft holder fixing screws 120. Fixed.
[0025]
The guide shaft holder 109 is provided with a diopter adjustment mechanism having a lens for enlarging the image of the image display unit to constitute a diopter adjustment mechanism unit 132. The diopter adjustment mechanism unit 132 is configured and arranged as follows.
[0026]
A lens holder 110, to which a lens 111 for enlarging an image displayed on the image display unit is fixed, is slidably inserted into the guide shaft 109a of the guide shaft holder 109 in the guide bearing hole 110a. A coil spring 112 is inserted into the guide shaft 109a between the lens holder 110 and the guide shaft 109a of the guide shaft holder 109, and the coil spring 112 always elastically biases the lens holder 110 by a repulsive force. ing.
[0027]
On the other hand, a diopter adjusting lever 113 for changing the position of the lens holder 110 is inserted from one surface into an opening provided in the guide shaft holder 109, and a torque spring 114 for applying an axial force to the other surface. A diopter adjustment piece 116 provided with a torque sheet 115 for generating a predetermined frictional force against the force and a cam follower portion 116a for regulating the position of the lens holder 110 is sequentially inserted, and these are inserted into the diopter portion fixing screw 117. It is concluded at. The lens holder 110 is provided with a single-sided cam 110b with which the cam follower 116a abuts. The diopter adjustment lever 113 and the diopter adjustment piece 116 are integrally fastened, and the position of the cam follower 116a is moved according to the rotation position of the diopter adjustment lever 113, and the position of the lens holder 110 is changed. The single-sided cam 110b is restricted in position only in the repulsion direction of the coil spring 112, and is configured to be freely movable in the direction in which the coil spring 112 contracts. The diopter adjustment mechanism unit 132 configured in this way is attached to the EVF slide large 105 with the guide shaft holder fixing screw 120.
[0028]
In FIG. 2B, one end of the eye cap 118 is hooked into the engagement groove 105 c of the large EVF slide 105, and the other is fixed to the guide shaft holder 109 with the screw 119. The EVF slide mechanism assembled in this way is covered with an EVF cover 122. The EVF cover 122 is fixed by engaging two engagement ribs 122 a provided on the lower inner surface with two engagement grooves 105 f provided on the EVF slide large 105.
[0029]
The large EVF slide 105 is provided with an opening 105 d for removing dust attached to the transparent protective cover 108. Then, the window cover 121 that normally closes the opening 105d is inserted into the EVF slide large 105, and the engagement claws 121a provided on the window cover 121 and the EVF slide large 105 are provided by the elastic force of the window cover 121. By being engaged in the engagement hole 105e, it is detachably fixed. By attaching the window cover 121, the engagement rib 122a is sandwiched between the EVF slide size 105 and the vicinity of the engagement rib 122a of the EVF cover 122 so that the engagement rib 122a does not come off the engagement groove 105f. It is composed.
[0030]
The image display unit absorbs variations in thickness of the LCD mask 126, which is a light shielding member having a square hole of a predetermined size so as to determine the field angle range of the display unit, the LCD panel 127, which is an image display unit, and each component. An EVF rubber 128 made of an elastic sheet as much as possible, and an LCD driving circuit unit 125 having a structure in which two substrates are integrally connected by a flexible substrate, a rectangular fluorescent tube serving as an LCD light source and various driving circuits, and The PB spacer 129 is inserted between the two substrates of the LCD drive circuit unit 125 and supports them at a predetermined interval. These parts are inserted into the LCD holder 106 in the order described above.
[0031]
Finally, the first hinge angle 133 which is one member of the EVF hinge unit 130 for rotatably supporting the EVF unit 1 with a predetermined torque with respect to the video camera main body 102 is hinge-fixed to the EVF slide small 103. By fixing with the screw 124, the lid is closed and the image display unit is stored and fixed. At this time, the EVF click spring 123, which is a regulating mechanism that gives a predetermined regulating force, is simultaneously fixed to the upper part of the EVF slide small 103 with a fixing screw 124. In the retracted state of the EVF slide mechanism, the EVF click spring 123 is sandwiched between the EVF slide small 103 and the EVF slide middle 104 so as to generate a predetermined friction load. Further, when the EVF slide mechanism is pulled out, the tip inclined portion 123a of the EVF click spring 123 is fixed so as to urge the end surface of the EVF slide 104, and a predetermined load is generated when the EVF slide mechanism starts to be stored. And arranged and configured to give a click feeling. Further, the other end of the EVF click spring 123 is configured with an engagement inclined portion 123b that engages with the tip of the slide click spring 131 when the EVF slide mechanism is housed. By this engagement, a predetermined load is generated when the EVF slide mechanism is stored / drawn, and a holding force and a click feeling in the stored state are given.
[0032]
The configuration of the EVF hinge unit 130 will be described with reference to FIG.
A caulking pin 136 is inserted into a guide hole 135a formed in a slide lock plate 135 which is a restricting member for restricting / releasing the movement of the guide shaft 109a at the tip of the guide shaft 109a, and this is inserted into the first hinge angle 133. The slide lock plate 135 is movably supported with respect to the first hinge angle 133 by being fixed by caulking. A spring engagement groove 133a and a spring engagement hole 135b are formed in the first hinge angle 133 and the slide lock plate 135, respectively. By inserting one end of the slide lock spring 138 into the spring engagement groove 133a and the other end into the spring engagement hole 135b, the slide lock plate 135 is always urged upward with respect to the first hinge angle 133. ing. A lock cam 137 made of synthetic resin is press-fitted and fixed to the slide lock plate 135. The second hinge angle 134 and the washer 139 are loosely inserted into the first hinge angle 133 assembled in this way, and the torque shaft is inserted into the shaft hole 134a formed in the second hinge angle 134 and the hole 139a of the washer 139. By inserting 140 and fastening by caulking, the first hinge angle 133 and the second hinge angle 134 are supported so as to be rotatable while being given a predetermined rotation torque.
[0033]
When the first hinge angle 133 has the click hole 133b and the second hinge angle 134 has the EVF hinge unit 130 closed (in the state shown in FIG. 1a or 1b), the click engages with the click hole 133b. Protrusions 134c are formed respectively.
[0034]
A cam follower portion 134b that abuts on the lock cam 137 when the EVF unit 1 is tilted down and moves the slide lock plate 135 downward through the second hinge angle 134 is integrally formed by bending. Forming. Further, a guide hole 134d that is loosely inserted so as not to damage the guide shaft 109a is formed by burring in front of the guide shaft 109a of the second hinge angle 134.
[0035]
The first hinge angle 133 is formed with a tapping portion 133 c for fastening to the EVF slide small 103. Further, the second hinge angle 134 is formed with an engaging portion 134e for fixing to the video camera body 2 and a screw hole 134f.
[0036]
The EVF hinge unit 130 thus configured is fastened and fixed to the EVF slide mechanism as described above to constitute the EVF unit 101, and the engaging portion 134e of the second hinge angle 134 is attached to the video camera main body 102. It is inserted into the formed engagement hole (not shown) and fastened and fixed to the video camera main body 102 with a main body fixing screw (not shown) in the screw hole 134f.
[0037]
The operation of the EVF slide mechanism of the present embodiment configured as described above will be described with reference to FIGS.
[0038]
8 is a state in which the EVF unit 101 is pulled out, FIG. 9 is a state in which the EVF unit 101 is accommodated, and FIG. 10 is a side sectional view in a state in which the EVF unit 101 is pulled out and then rotated and raised as shown in FIG. These are all shown.
First, the state where the EVF unit 101 is pulled out will be described.
[0039]
The stopper inner claw 104b and the end face of the stopper guide hole 103b, and the stopper outer claw 104c and the end face of the stopper guide hole 105b are brought into contact with each other, and are pulled out to a predetermined drawing position. Further, as shown in FIG. 11, the click hole 104 a of the EVF slide 104 and the tip 131 a of the slide click spring 131 of the EVF slide large 105 are fitted, and the tip inclined portion 123 a of the EVF click spring 123 is on the end surface of the EVF slide 104. By being abutted and energized, it is held at this pulling position.
[0040]
About the diopter adjustment mechanism unit 132, the rotation position of the diopter adjustment lever 113 is changed so that the lens 111 is adjusted to a position according to the visual acuity of the user.
[0041]
In this state, the lock cam 137 of the slide lock plate 135 is moved downward by the cam follower portion 134b, and the lock plate opening portion 135d is located in front of the guide shaft 109a. For this reason, the EVF unit 101 can be accommodated by pressing in the direction of the arrow B shown in FIG.
[0042]
Next, a state where the EVF unit 101 is stored will be described.
As shown in FIG. 9, the end surfaces of the stopper inner claw 104b and the stopper guide hole 103b, and the stopper outer claw 104c and the end surface of the stopper guide hole 105b are all brought into contact with each other and stored to a predetermined storage position. In addition, the engagement inclined portion 123b of the EVF click spring 123 and the tip 131a of the slide click spring 131 are engaged with each other, so that the EVF click spring 123 is held at this storage position.
[0043]
As for the diopter adjustment mechanism unit 132, the lens holder 110 and the transparent protective cover 108 come into contact with each other during the storing process during the storing. Here, since the position of the lens holder 110 is restricted only in the repulsion direction of the coil spring 112 by the single-sided cam 110b, the coil spring 112 contracts further when the storing operation is continued, and the single-sided cam 110b and the cam follower portion 116a. Leave. In this way, the lens 111 can be stored compactly regardless of the position of the lens 111.
[0044]
Even in this state, the lock cam 137 of the slide lock plate 135 is moved downward by the cam follower portion 134b, and the lock plate opening portion 135d is located in front of the guide shaft 109a. Therefore, the EVF unit 101 can be pulled out by pulling in the direction of arrow A shown in FIG. 1b against a predetermined click force.
[0045]
Finally, a state where the EVF unit 101 is pulled out and then rotated will be described.
[0046]
As shown in FIG. 10, the end surfaces of the stopper inner pawl 104b and the stopper guide hole 103b and the stopper outer pawl 104c and the end surface of the stopper guide hole 105b are brought into contact with each other and pulled out to a predetermined pulling position. In addition, the click hole 104a of the EVF slide 104 and the tip 131a of the slide click spring 131 of the EVF slide large 105 are fitted, and the tip inclined portion 123a of the EVF click spring 123 abuts against the end surface of the EVF slide 104 and urges it. By doing so, it is held in this pulling position.
[0047]
About the diopter adjustment mechanism unit 132, the rotation position of the diopter adjustment lever 113 is changed so that the lens 111 is adjusted to a position according to the visual acuity of the user. In this state, since the lock cam 137 and the cam follower part 134b are separated, the slide lock plate 135 is moved upward by the slide lock spring 138, and the lock plate restricting part 135c is located in front of the guide shaft 109a. Yes. For this reason, even if it pushes against the predetermined click force in the direction of the arrow D shown in FIG. 1c, the EVF unit 101 cannot be stored because the guide shaft 109a and the lock plate restricting portion 135c come into contact with each other.
[0048]
In this embodiment, the small EVF slide 103, the EVF slide middle 104, and the EVF slide large 105, which are thin-walled members, are all created by deep drawing of an iron plate. However, you may process by an extrusion process and the processing method is not ask | required. The material is not necessarily an iron plate.
[0049]
Further, although the light shielding shade 107 is formed by insert molding silicon rubber on a substrate component made of thin sheet metal, the material and the processing method are not limited. For example, an elastomer or silicon rubber may be integrally formed on a resin base material, and the processing method may be formed by bonding.
[0050]
In the present embodiment, the EVF click spring 123 and the slide click spring 131 are used as the regulation mechanism that gives a predetermined regulation force. However, even if the EVF click spring 123 and the slide click spring 131 are configured as one member, they are formed integrally with a part of the other member. You may, and the method does not ask | require. Further, the predetermined regulating force does not necessarily require a click feeling, and may be only a holding force such as friction.
[0051]
In the diopter adjustment mechanism unit 132, the guide shaft 109a is used as a guide member for the movement of the lens holder 110. However, other members may be used, and there may be one coil spring 112 or a compression coil spring. Not necessarily. Further, the diopter adjustment method does not necessarily have to be a lever method, and the operation torque generation method does not matter.
[0052]
【The invention's effect】
As described above, the present invention is provided with a lock mechanism that moves in accordance with tilt UP / tilt DOWN of the EVF slide mechanism and is provided with a restriction member that restricts / releases the movement of the guide shaft at the tip of the guide shaft. The EVF unit and the video camera body can be prevented from being damaged or damaged.
[Brief description of the drawings]
FIG. 1 is a perspective view of a video camera having an EVF slide mechanism according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the entire EVF slide mechanism according to the first embodiment of the present invention.
FIG. 3 is a partially exploded perspective view of the EVF slide mechanism according to the first embodiment of the present invention.
FIG. 4 is a partially exploded perspective view of the EVF slide mechanism according to the first embodiment of the present invention.
FIG. 5 is a partially exploded perspective view of the EVF slide mechanism according to the first embodiment of the present invention.
FIG. 6 is a partially exploded perspective view of the EVF slide mechanism according to the first embodiment of the present invention.
7 is a partially exploded perspective view of the EVF slide mechanism according to the first embodiment of the present invention. FIG.
FIG. 8 is a side sectional view of the EVF slide mechanism according to Embodiment 1 of the present invention in a state in which the EVF slide mechanism is pulled out.
FIG. 9 is a side sectional view showing a state in which the EVF slide mechanism according to Embodiment 1 of the present invention is housed.
FIG. 10 is a side sectional view in a state where the EVF slide mechanism according to Embodiment 1 of the present invention is pulled out and then raised.
FIG. 11 is a perspective view of a video camera having a conventional EVF slide mechanism.
FIG. 12 is a partially exploded perspective view of a conventional EVF slide mechanism.
FIG. 13 is a partially exploded perspective view of a conventional EVF slide mechanism.
[Explanation of symbols]
101 EVF unit
102 Video camera body
103 F small slide
104 EVF sliding
105 EVF slide size
106 LCD holding piece
107 Shading shade
108 Transparent protective panel
109 Guide shaft holder
110 Lens holder
111 lenses
112 coil spring
113 Diopter adjustment lever
114 Torque spring
115 Torque seat
116 Diopter adjustment piece
117 Diopter fixing screw
118 Eyecap
119 screw
120 Guide shaft holder fixing screw
121 window cover
122 EVF cover
123 EVF click spring
124 Hinge fixing screw
125 LCD drive circuit unit
126 LCD mask
127 LCD panel
128 EVF rubber
129 PB spacer
130 EVF hinge unit
131 Slide click spring
132 Diopter adjustment mechanism unit
133 First hinge angle
134 Second hinge angle
135 Slide lock plate
136 Caulking pin
137 Rock cam
138 Slide lock spring
139 Washer
140 Torque shaft

Claims (1)

A first tubular thin member;
A second cylindrical thin member that loosely fits inside the first cylindrical thin member so that the first cylindrical thin member can be relatively moved by a predetermined first distance;
A third cylindrical thin member that is loosely fitted inside such that the second cylindrical thin member can be relatively moved by a predetermined second distance;
A guide bearing provided in the first thin cylindrical member;
The first and second cylindrical thin members are slidably inserted into the guide bearing portion, and the first cylindrical thin member and the second cylindrical thin member are substantially inserted into the third cylindrical thin member. A guide shaft fixed to the third cylindrical thin member, having a length in a state where the first to third cylindrical thin members are pulled out. EVF slide mechanism,
When the first to third cylindrical thin-walled members are substantially inserted, they are located within the EVF cover that covers the EVF slide mechanism, and when they are substantially discharged, they are exposed outside the EVF cover, An EVF hinge mechanism that is interposed between the first cylindrical thin-walled member and the camera body so as to pivotally support the EVF slide mechanism by applying a predetermined load so that the EVF slide mechanism can be rotated by a predetermined angle;
An opening through which the guide shaft passes in a non-rotating state and a restricting portion with which the guide shaft abuts in a rotating state include a lock mechanism that moves in response to the rotation of the EVF slide mechanism. EVF slide lock mechanism.

Images