JPH0832843A - Tilt mechanism - Google Patents

Abstract

PURPOSE:To provide a tilt mechanism tilted stepless with simple configuration for a removable liquid crystal monitor for a video camera. CONSTITUTION:Press contact parts 3c, 3d of a mount member 3 and press contact members 7, 17 coupled with the mount member 3 are energized by coil springs 5, 15 interposed between heads 4a, 14a of machine screws 4, 14 screwed to the mount member 3 and the press contact member 7 and pushed respectively to an inner face or an outer face of press contact parts 8a, 18a of projections 8, 18 integrally with a liquid crystal display monitor main body 2, the liquid crystal display monitor 2 is held at an optional tilt angle stepless to the video camera main body with a friction and the liquid crystal display monitor 2 is attached/detached to/from the liquid crystal display monitor 2 by the mount member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt mechanism, and is particularly useful when applied to a tilt mechanism of a liquid crystal monitor of a video camera.

[0002]

2. Description of the Related Art FIG. 5A is a rear view of a video camera with a liquid crystal monitor, and FIG. 5B is an enlarged configuration diagram showing an outline of a tilt mechanism according to the prior art provided in the liquid crystal monitor shown in FIG. Is.

As shown in FIG. 5A, the video camera 3
1, a liquid crystal monitor 32 is attached to the back surface of a main body 33 having a finder 34. This LCD monitor 3
2, the main body 35 is provided with a tilt mechanism 36 shown in FIG. 5B, and the main body 35 can be tilted with respect to the video camera main body 33 by the tilt mechanism 36.

That is, as shown in FIG. 5B, the tilt mechanism 3
Reference numeral 6 has a ratchet 37 having a rotary shaft 38 coupled to the liquid crystal monitor main body 35, a pawl 39 that is engaged with the teeth of the ratchet 37, and a coil spring 40 that urges the pawl 39 toward the ratchet 37. ing. Therefore, the main body 35
When is rotated in the direction of arrow C, ratchet 3
7 rotates, and the bite position of the pawl 39 moves. Thus, the inclination angle of the main body 35 changes stepwise.

[0005]

However, in the tilt mechanism 36 according to the above-mentioned prior art, the structure is relatively complicated and the tilt angle of the liquid crystal monitor main body 35 changes stepwise, so that this can be finely adjusted. Can not.

Further, since the liquid crystal monitor 32 is fixed to the video camera body 33 and cannot be removed, the weight of the entire video camera 31 is heavy, and the liquid crystal monitor 32 tends to be used more than necessary, so the battery consumption is fast. .

Therefore, in view of the above-mentioned prior art, the present invention provides a tilt mechanism used for a liquid crystal monitor of a video camera, which can be tilted steplessly, has a simple structure, and is detachable. The purpose is to

[0008]

According to a first aspect of the present invention which achieves the above object, there is provided a first contact member having a through hole in a side surface and fixed to either one of a fixed portion and an inclined portion. , A through hole is formed on the side surface of the tip portion, and one side surface of the tip portion is formed on one side surface of the first contact member so that the through hole and the through hole of the first contact member are continuous. The second abutting member that abuts, and the base end portion is coupled to the base end portion of the first abutting member, and either the fixed portion or the inclined portion together with the base end portion of the first abutting member. The third contact member is fixed to the other end, and the side surface of the tip end portion is in contact with the other side surface of the first contact member, and has a head portion and a leg portion integrated with the head portion. A connecting member in which the leg portion penetrates through holes of the first and second abutting members and a tip portion of the leg portion is fixed to a tip portion of the third abutting portion, An elastic member interposed between the head portion of the connecting member and the other side surface of the tip end portion of the second contact member, and biasing the head portion and the tip end portion in a direction in which they are separated from each other. It is characterized by having.

A second structure of the present invention for achieving the above object is characterized in that, in the first structure, the inclined portion is a liquid crystal monitor main body and the fixed portion is a video camera main body.

A third structure of the present invention which achieves the above object is the mounting member according to the first structure, wherein the inclined portion is the liquid crystal monitor main body and the fixing portion is removably attached to the video camera main body. Is characterized in that.

[0011]

According to the present invention having the above structure, the second and third contact members are pressed against the first contact member by the urging force of the elastic member. Therefore, due to the frictional force between the first abutting member and the second and third abutting members, the inclined portion of the liquid crystal monitor main body or the like can be steplessly inclined with respect to the fixed portion of the video camera main body or the like. Can be held at. Further, when the second contact member and the connecting member rotate when the inclined portion is inclined, the elastic member also rotates together with the second contact member and the connecting member, so that the elastic member cannot prevent the connecting member from rotating. If the slanted part is the liquid crystal monitor main body and the fixed part is a mounting member detachably mounted on the video camera main body,
The LCD monitor body can be optionally removed from the video camera body.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a rear perspective view of a video camera having a liquid crystal monitor having a tilt mechanism according to an embodiment of the present invention, FIG. 2 is a rear perspective view of the liquid crystal monitor shown in FIG. 1, and FIG.
2 is an exploded perspective view of the tilt mechanism shown in FIG. 2, and FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG.

In these figures, 11 is a video camera, 12 is a liquid crystal monitor, 13 is a tilt mechanism, 1 is a video camera body, 1a is a viewfinder, 1b and 1c are latching parts, 1d is a locking part, 1e is a pressing part. 1f is a coil spring, 2 is a liquid crystal monitor main body, 3 is a mounting member, 3a, 3
b and 3g are convex portions, 3c and 3d are abutting portions, 3e and 3f are screw portions, 3h and 3i are side surfaces, 3j is a bottom surface, 3k and 3m are through holes, 4 and 14 are screws, 4a and 14a are heads. Part, 4b, 1
4b is a leg portion, 4c and 14c are screw portions, 5 and 15 are coil springs, 6 and 16 are washers, 7 and 17 are abutting members, 7
a, 17a are through holes, 7b, 17b are base end portions, 7c, 1
Reference numeral 7c is a tip portion, 8 and 18 are convex portions, 8a and 18a are contact portions, and 8b, 8c, 18b and 18c are opening portions.

As shown in FIG. 1, the video camera 11 has a liquid crystal monitor 12 mounted on the rear surface of the main body 1 (shown by a chain double-dashed line). The liquid crystal monitor 12 is removable as shown by the solid line in FIG. 1, and has a tilt mechanism 13 on the back surface as shown in FIG.

As shown in FIG. 3, the tilt mechanism 13 includes a mounting member 3, abutting members 7 and 17, convex portions 8 and 18, screws 4 and 14, coil springs 5 and 15, and washers 6 and 16.
It consists of

Of these, the mounting member 3 is a bottom surface 3j facing the back surface of the video camera body 1 when mounted on the video camera body 1, and side surfaces 3h on both sides of the bottom surface 3j and perpendicular to the bottom surface 3j. , 3i. The contact portions 3c and 3d and the convex portion 3 are provided on the upper portions of the side surfaces 3h and 3i.
a and 3b are formed, and a convex portion 3g is formed on the lower portion of the side surface 3i.
Are formed. Further, screw parts 3e and 3f are formed at the centers of the tip parts of the contact parts 3c and 3d, respectively.
Through holes 3k and 3m are formed in the base end portion of d, and the tip portions of the protrusions 3a and 3b hang down.

The abutting members 7 and 17 are members having an L-shaped cross section, and the base end portions 7b and 17b are the through holes 3 of the mounting member 3.
The tip portions 7c17c are respectively fitted in the k and 3m, and the tip portions of the abutting portions 3c and 3d of the mounting member 3 face each other. Further, the through hole 7 is formed in the central portion of the tips 7c and 17c.
a and 17a are formed.

Each of the convex portions 8 and 18 is formed integrally with the liquid crystal monitor main body 2 having a cylindrical cavity, and one of the left and right directions in FIG. 3 is an opening (opening portions 8c and 18).
c), and the other side has contact portions 8a and 18a, and the outer peripheral surface has slit-shaped through holes 8d and 18d formed along the circumferential direction.

As shown in FIG. 4, one of the tips 7c and 17c of the abutting members 7 and 17 inserted through the through holes 8d and 18d is formed on the inner surface of the abutting portions 8a and 18a of the convex portions 8 and 18, respectively. The side surfaces are in contact with each other, and the side surfaces of the contact portions 3c, 3d of the mounting member 3 are in contact with the outer surfaces of the contact portions 8a, 18a, respectively.

Further, in the convex portions 8 and 18, openings 8c and 1 are formed.
Screws 4 and 14, coil springs 5 and 15 inserted from 8c
And washers 6 and 16 are provided. As for the screws 4 and 14, the leg portions 4b and 14b respectively have the contact members 7 and 17 and the through holes 7a, 17a, 8b and 1 of the contact portions 8a and 18a.
8b, and threaded portions 4c, 1 at the tips of the legs 4b, 14b
4c is screwed into the screw portions 3e and 3f of the contact portions 3c and 3d. The coil springs 5 and 15 and the washers 6 and 16 are interposed between the other side surfaces of the tip portions 7c and 17c of the contact members 7 and 17 and the head portions 4a and 14a of the screws 4 and 14, respectively. Further, the coil springs 5 and 15 are respectively attached to the heads 4a and 14a.
The head portions 4a, 14a and the tip portions 7c, 17c of the abutting members 7, 17 are urged in a direction in which they are separated from each other. Therefore, due to these biasing forces, the tip portion 7c,
17c and the tips of the contact portions 3c, 3d are contact portions 8a, 1
It is pressed against the inner surface or the outer surface of 8a.

On the other hand, as shown in FIG. 1, the video camera body 1 is provided with a pressing portion 1e on its side portion. The pressing portion 1e is a lock portion 1d biased in the direction of arrow A by a coil spring 1f. It is formed integrally. Further, a hooking portion 1d is provided above the lock portion 1d.

Therefore, according to the tilt mechanism 13 having the above structure, when the mounting member 3 is pressed against the rear surface of the video camera 1 and slid downward, the convex portions 3b, 3 are formed as shown in FIG.
Since a is hooked on the hook portions 1b and 1c and the convex portion 3g is locked on the lock portion 1d, the mounting member 3 is fixed. On the other hand, when the pressing portion 1e is pressed to compress the coil spring 1f and move the lock portion 1d in the direction of arrow B, the convex portion 3g is unlocked, so that the mounting member 3 can be removed. Therefore, the liquid crystal monitor 12 can be easily attached to and detached from the video camera body 1. That is, since the liquid crystal monitor 12 can be easily removed when not needed,
It is possible to use the liquid crystal monitor 12 more than necessary to prevent the battery consumption from accelerating, and to reduce the weight of the video camera 11 for shooting.

When the liquid crystal monitor main body 2 is rotated with the liquid crystal monitor main body 2 attached to the video camera main body 1, the abutting portions 8a and 18a, the abutting members 7 and 17, and the abutting portions of the mounting member 3 are rotated. Due to the frictional force between 3c and 3d, the liquid crystal monitor main body 2 can be held at an arbitrary inclination angle with respect to the video camera main body 1 steplessly. Moreover, when the contact members 7, 17 and the screws 4, 14 are rotated when the liquid crystal monitor main body 2 is tilted, the coil springs 5, 5 are also moved together with them.
Since 15 also rotates, the coil springs 5 and 15 are screw 4 and 1
It does not hinder the rotation of 4. That is, if the contact members 7 and 17 are not provided and the coil springs 5 and 15 are contacted with the contact portions 8a and 18
If it is directly in contact with a, the coil springs 5 and 15 do not rotate smoothly with the screws 4 and 14, but rather the screws 4 and 14 do not rotate.
Prevent the rotation of. As a result, the screw engagement between the screws 4 and 14 and the mounting member 3 becomes loose. Therefore, contact members 7 and 17 are provided in order to prevent the occurrence of such a defect. Further, the tilt mechanism 13 has a simple structure as described above.

[0025]

According to the present invention, as described in detail with reference to the embodiments, the tilting portion of the liquid crystal monitor or the like can be held at any tilting angle in a stepless manner with respect to the fixed portion of the video camera body or the like. You can Further, by providing the second contact member, the elastic member does not hinder the rotation of the connecting member, and the inclined portion can be repeatedly and stably inclined. Also, by using the slanted part as the LCD monitor body and the fixed part as the mounting member, the LCD monitor body can be easily attached to and detached from the video camera body, so use the LCD monitor more than necessary to speed up battery consumption. There is no fear that the video camera will be lost, and the weight of the video camera can be reduced for shooting.

[Brief description of drawings]

FIG. 1 is a rear perspective view of a video camera having a liquid crystal monitor having a tilt mechanism according to an embodiment of the present invention.

FIG. 2 is a rear perspective view of the liquid crystal monitor shown in FIG.

FIG. 3 is an exploded perspective view of the tilt mechanism shown in FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line IV-IV of FIG.

5A is a rear perspective view of a video camera with a liquid crystal monitor, and FIG. 5B is an enlarged configuration diagram showing an outline of a tilt mechanism according to a conventional technique provided in the liquid crystal monitor shown in FIG.

[Explanation of symbols]

 1 Video Camera Main Body 1a Finder 1b, 1c Hooking Part 1d Locking Part 1e Pressing Part 1f Coil Spring 2 Liquid Crystal Monitor Main Body 3 Mounting Member 3a, 3b, 3g Convex Part 3c, 3d Abutting Part 3e, 3f Screw Part 3h, 3i Side 3j Bottom 3k, 3m Through hole 4,14 Screw 4a, 14a Head 4b, 14b Leg 4c, 14c Screw 5,15 Coil spring 6,16 Washer 7,17 Contact member 7a, 17a Through hole 7b, 17b Base end 7c, 17c Tip part 8,18 Convex part 8a, 18a Contact part 8b, 8c, 18b, 18c Opening part

Claims (3)

[Claims] 1. A first contact member having a through hole on a side surface and fixed to either a fixed portion or an inclined portion, and a through hole on a side surface of a tip portion, the through hole and the first A second contact member in which one side surface of the tip end portion contacts one side surface of the first contact member so that the through hole of the first contact member is continuous; Of the contact member is fixed to the other of the fixed portion and the inclined portion together with the base end portion of the first contact member, and the side surface of the tip portion is the first side.
Third contact member that contacts the other side surface of the contact member, and a head and a leg portion that is integral with the head portion, and the leg portion includes the first and second contact members. A connecting member which penetrates through the through hole and whose tip end portion is fixed to a tip end portion of the third contact portion, and a head portion of the connection member and a tip end portion of the second contact member. A tilt mechanism comprising: an elastic member interposed between the other side surface and urging the head portion and the tip portion in a direction in which they are separated from each other. 2. The tilt mechanism according to claim 1, wherein the tilted portion is a liquid crystal monitor body and the fixed portion is a video camera body. 3. The tilt mechanism according to claim 1, wherein the tilting portion is a liquid crystal monitor body, and the fixing portion is a mounting member detachably mounted on the video camera body.