JP3498659B2 - Height fixing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a height fixing device for positioning a fixed head such as a video.

[0002]

2. Description of the Related Art FIG. 6 shows the structure of a conventional height fixing device.

A shaft 2 press-fitted into a chassis (not shown)
1, 22, a base 23 movable up and down along the shafts 21 and 22, and a fixing screw 24.

FIG. 8 shows a fixing head 2 in a conventional height fixing device.
6 is attached.

Base 2 to which fixed head 26 is attached
When the height of 3 is moved up and down along the shafts 21 and 22 to be adjusted and then fixed, the base 23 is laterally fixed to the shaft 21 with fixing screws 24.

In order to tighten the fixing screw 24 with the hexagon socket head cap screw which is generally used and to tighten it with the hexagon L wrench 25, the hexagon L wrench 25 must be rotated at least 60 degrees as shown in FIG. Since it is necessary to leave space for that, there is a large loss of space.

In a place with a small space, the hexagonal L wrench is once removed from the hexagon socket head bolt every 60 degrees from the position shown by the solid line to the position shown by the broken line in FIG. Work such as rotating by 60 degrees was required, and workability was poor.

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Miniaturization and weight reduction are strongly demanded year by year as appeal points.

On the other hand, improvement of service / maintenance in the market is also demanded.

In the conventional lateral fixing method, a space is required for inserting a tool from the lateral direction and tightening the screws, and there is a problem that not only the space loss is large but also the work is difficult.

Therefore, it is an object of the present invention to provide a structure in which one driver can easily work from above.

[0012]

In order to solve this problem, according to the present invention, a fixed part having an inclined surface is pulled up when a fixing screw is tightened from above so that the fixed part has an inclined surface. A force is applied to the fixing shaft in the lateral direction, and the force is fixed by sandwiching the fixing shaft and the straight portion of the fixing hole of the base with respect to the fixed shaft.

With this, the base that moves up and down along the fixed shaft can be fixed to the shaft from above by using a driver.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention, as shown in FIGS.
And a base 3 that moves up and down along the axes 1 and 2,
Fixing part 4 having an inclined surface, and said fixing part 4
A fixing screw 5 for tightening the base 3 to the base 3, and a fixing shaft 6 loosely fitted so as to come in contact with one end of the shaft 1 and the base 3 and an inclined surface of the fixing part 4. When the fixing screw 5 is tightened, the fixing part 4 is pulled upward, so that the fixing shaft 6 with which the inclined surface of the fixing part 4 abuts is laterally pushed out, and the bent portion 7 of the base 3 is pushed. So that the base 3 can be fixed to the shaft 1 by using the contact part with the fulcrum as a fulcrum, the contact part with the inclined surface of the fixing part 4 as a force point, and the contact part with the shaft 1 as an action point This is a fixing device configured and can be used as a fixing device after adjusting the height of a fixing head of a video or the like.

In the invention according to claim 2 of the present invention, as shown in FIG. 5, a protrusion 17 integrated with the fixing shaft 6 is provided, and the bent portion 7 and the end surface 18 of the base 3 are provided.
The fixing device according to claim 1, wherein the axial movement of the fixing shaft (6) is restricted between the fixing shafts (6), and the fixing shaft (6) is prevented from falling off during assembly.

FIG. 1 shows an embodiment of the present invention.
It will be described with reference to FIG.

(Embodiment 1) FIG. 1 is a view of a height fixing device, which is an embodiment of the present invention, seen obliquely from above, and FIG. 2 is a view taken in the direction of arrow A. 3 is a view seen from the direction B.

In the figure, 1 and 2 are chassis (not shown).
There is a base 3 that can be moved up and down along the shafts 1 and 2 with a shaft press-fitted in, and a fixing part 4 having a tapered surface is attached to the base 3 with a fixing screw 5.

A fixing shaft 6 is loosely fitted in a state in which the bent portion 7 of the base 3, the shaft 1 and the inclined surfaces of the fixing part 4 are in contact with each other.

FIG. 4 shows the height fixing device of FIG.
The fixed head 9 is fixed to the fixed head base 10, and has a tilt adjusting screw 11 and an azimuth adjusting screw 12, and the X value adjusting base 14 is fixed by the fixing screw 13.
Fixed to.

The X value adjusting base 14 is provided with fixing screws 15 and 16
It is fixed to the base 3 with.

The operation of the above configuration will be described.

In FIG. 1, the base 3 is moved up and down along the axes 1 and 2 to adjust the height, and then the fixing part 4 having the inclined surface is tightened with the fixing screw 5.
In FIG. 2, the fixing part 4 is pulled upward, and at the same time, the inclined shaft of the fixing part 4 pushes out the fixing shaft 6 in the left front direction.

In FIG. 3, the fixing shaft 6 is the base 3
Since this point is fixed by the bent portion 7, the lever is used as a fulcrum, the point of contact with the inclined surface of the fixing part 4 is used as the force point, and the point of contact with the fixed shaft 1 is used as the point of action to generate the lever principle. The base 3 is fixed to the shaft 1 by sandwiching the shaft 1 fixed to the chassis by the straight portion 8 of the fixing hole of the base 3 and the fixing shaft 6.

In FIG. 4, the height of the fixed head 9 is fixed by the above-mentioned operation, the tilt can be adjusted by adjusting the tilt adjusting screw 11, and the azimuth adjusting screw 12 can be adjusted. Will be possible.

By making the hole for fixing the X value adjusting base 14 to the base 3 oblong, the horizontal direction of the fixed head is adjusted, and then the base 3 is fixed by using the fixing screws 15 and 16.
Can be fixed to.

(Second Embodiment) In FIG. 5, a protruding portion 17 is provided on the fixing shaft 6, and a bent portion 7 of the base 3 is provided.
The protrusion 17 is arranged between the end face 18 and the end face 18.

The operation of the above configuration will be described.

In FIG. 5, the protrusion 1 is provided on the fixing shaft 6.
By providing 7, the movement of the fixing shaft 6 in the axial direction is restricted between the bent portion 7 of the base 3 and the end surface 18 of the base 3, and it is possible to prevent the fixing shaft 6 from falling off during assembly.

[0030]

As described above, according to the present invention, the work using the L wrench from the lateral direction is eliminated, and the height of the base can be easily fixed by using a screwdriver from above, and the workability is improved. To do. Also, in terms of space, it is only necessary to open a space above the fixing screw 5 so that the diameter of the driver can be accommodated, so that the loss of space can be reduced.

Further, according to the present invention, it is possible to prevent the fixing shaft from falling off when assembling the height fixing device and improve workability.

[Brief description of drawings]

FIG. 1 is a view showing a height fixing device according to an embodiment of the present invention.

FIG. 2 is an arrow view from the direction A in FIG.

FIG. 3 is an arrow view from the direction B in FIG.

FIG. 4 is a view in which a fixing head is attached to a height fixing device according to an embodiment of the present invention.

FIG. 5 is a view showing a structure for preventing the shaft from falling off in the height fixing device according to the embodiment of the present invention.

FIG. 6 is a view showing a conventional height fixing device.

FIG. 7 is a view showing a fastening form of a fixing screw of a conventional height fixing device.

FIG. 8 is a view showing a state in which a fixing head is attached to a conventional height fixing device.

[Explanation of symbols]

1 axis 2 axes 3 base 4 fixing parts 5 fixing screws 6 fixing shaft 7 Bent section 8 Straight part of fixing hole 9 Fixed head 10 Fixed head base 11 Tilt adjustment screw 12 Azimuth adjustment screw 13 fixing screws 14 X value adjustment base 15 fixing screws 16 fixing screws 17 Projection 18 end face 21 axis 22 axes 23 base 24 fixing screws 25 Hexagon L Wrench 26 Fixed head

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Claims (2)

(57) [Claims] 1. A fixed shaft, a base that moves up and down along the shaft, a fixing part having an inclined surface, a fixing screw for tightening the fixing part to the base, and the shaft. And a fixing shaft that is loosely fitted so as to come into contact with one end of the base and the inclined surface of the fixing part, and the fixing part is pulled upward when the fixing screw is tightened, The fixing shaft with which the inclined surface of the fixing part abuts is pushed out in the lateral direction, and the contact portion with one end of the base is a fulcrum, the contact portion with the inclined surface of the fixing part is a force point, and A height fixing device configured such that the base is fixed to the shaft by using the contact portion as an action point. 2. The height fixing according to claim 1, wherein a protrusion integrated with the fixing shaft is provided, and an axial movement of the fixing shaft is restricted between the bent portion and the end surface of the base. apparatus.