JPS59129964A - Rotation adjusting jig - Google Patents

Abstract

PURPOSE:To adjust a relative position relation quickly and with high accuracy by constituting a titled jig of a columnar part for guiding a rotation of a driver for clamping a screw for fixing two supporting bases, and a rotation guide part fitted loosely into the screw to be freely rotatable. CONSTITUTION:An adjusting base 5 for supporting an inclined post 3 at a prescribed inclined angle is fitted loosely so as to be freely rotatable into a control stepped part 2B of a rotary roller post 2 provided vertically on a fitting base 6. The inclined post 3 and the roller post 2 are set to a desired relative position relation by turning the adjusting base 5 round the control stepped part 2B through an L-shaped part 18 of a rotation adjusting jig 14 and a notch recessed part 9 of the base 5, and thereafter, the bases 5, 6 are fixed by tightening a fixing screw 11 by a driver 19. Accordingly, since the screw 11 is utilized for a turning guide of the rotation adjusting jig 14, the looseness of the jig guide part can be eliminated, and the turning can be adjusted with high accuracy by a simple device.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotation adjustment jig for adjusting the relative position between two support stands.

The configuration of the conventional example and its problems First, let's talk about the magnetic recording and reproducing device (hereinafter referred to as VTR) of the rotation adjustment jig.
An example of application to a post device will be described. In FIG. 1, the magnetic tape (1) has a regulating stage (2).
A) (2B) A pair of rotating roller posts (2) regulating the vertical direction of this magnetic tape (1), and a pair of inclined posts (2) disposed between these rotating roller posts (2).
3) and is regulated and guided by the reed (4), which is the regulating stage of the guide drum (4), which has a rotating head inside.
A), the video signal is recorded and reproduced. Therefore, high-definition image quality and other VTR
In order to be compatible with the magnetic tape (1), it must run accurately in the correct position. In particular, the positional accuracy of the inclined post (3) with respect to the rotating roller post (2) is important. If the position of the tilted post (3) is incorrect, the magnetic tape (regulating stage (2A) of the rotating roller post (2))
(2B), and as a result, a large internal stress is generated at the end face of the magnetic tape (1), causing damage to the magnetic tape (1). Also magnetic tape (1)
floats off the reed (4A), and the rotating head in the kite drum (4) cannot accurately trace the magnetic tape (1). If the tilted post (3) is misaligned in this manner, the magnetic tape (1) may be damaged or accurate tracing may not be possible, resulting in noise appearing on the screen and significantly deteriorating the image quality. From what was mentioned above,
It can be seen how important the position adjustment of the tilt post (3) is.

However, with the jigs used in conventional VTR post devices, there has been a problem in that it is difficult to perform highly accurate position adjustment. A conventional example will be explained below based on FIGS. 2 and 3.

In Figures 2 and 3, the AAυ adjustment table (5) that supports the inclined post (3) at a predetermined angle of inclination is attached to the mounting table (6).
) of the rotating roller post (2).
B) is rotatably loosely fitted. Further, the rotating roller post (2) rotatably supports the rotating roller (7) between the regulating step portions (2A) (2B). The adjustment table (5) and the mounting table (6) are provided with a cutout recess (9) and a recess (10) that engage with the flat jig (8), respectively.The adjustment table (5) is also provided with a fixing screw. A long hole 0 passing through q◇ is provided, and the mounting base (6) is further provided with a female screw portion (13) that pairs with the fixing screw 0◇.

In the conventional configuration described above, the jig (8) is connected to the cutout recess (9).
and recess 00, and move the jig (8) within the play between the thickness of the jig (8) in the recess 00 and the width of the recess αO to install the adjustment table (5). stand (
6), the regulating step (2) of the rotating roller post (2)
B) can be rotated as a guide. After rotating to a predetermined position, the adjustment table (5) is fixed to the mounting table (6) by tightening the fixing screw α◇.

In this way, when adjusting the position of the VTR post device using the conventional jig (8), the four-part oO jig (8)
As mentioned above, play is required when engaging with the jig (8).
The drawback was that it could not be moved smoothly and it was difficult to adjust the position. Also, due to the structure of the jig, the mounting base (6) is larger than the adjustment base (5), and there is a recess α0 in that space.
It was necessary to provide the same, and there was also a problem in terms of downsizing the device.

OBJECTS OF THE INVENTION The present invention provides a rotation adjustment jig that eliminates the conventional drawbacks, allows relative position adjustment to be performed quickly and accurately, and allows the mounting base to be made smaller.

Structure of the Invention In order to achieve the above-mentioned object, the rotation adjustment jig of the present invention has a first support base and a secured part that engages with the jig, and the rotation adjustment jig has a first support base and a secured part that engages with the jig, and that a second support stand whose relative position M with respect to the first support stand is adjustable;
A co-movement adjustment jig used for a relative position adjustment device that is fixed to a support stand and has a fixed screw, the through-hole portion through which a driver for tightening the fixing screw is inserted and which guides the rotation of the driver. A rotation guide portion located at the tip of the columnar portion and rotatably loosely fitted to the fixing screw, and an engaging portion that engages with the engaged portion. ing.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 and 5. An adjustment stand (second support stand) (5) that supports the inclined post (3) at a predetermined angle of inclination is a rotating roller post (2) that is installed on a mounting stand (first support stand) (6). ) is rotatably and loosely fitted into the regulating step (273) of the holder. The rotating roller post (2) rotatably supports the rotating roller (7) between the regulating step portions (2A) and (2B). The adjustment table (5) has a notched recess (engaged part) (9) that engages with the jig.
, and is further provided with a long hole 0→ through which a fixing screw 0υ is inserted. Further, the mounting base (6) is provided with a female screw portion α that pairs with the fixing screw 0η. The rotation adjustment jig α→ is a handle part α0 for the operator to support and rotate the jig.
, a rotation guide portion af) located near the columnar portion 0 connected to the handle portion 04, a rotation guide portion af) located at the tip of the columnar portion α and rotatably fitted loosely with the fixing screw 01), and It is provided with an L-shaped part (engaging part) (end) that is connected from the guide part αη and engages the notch recess (9) at a glance, and further includes a columnar part (lie) from the handle part 0$. A through-hole (1) is formed inside the bridge to insert the driver 01 and guide the rotation of the driver aO.The rotation guide α force and the through-hole (A) are coaxial. It is placed on top.

In the above configuration, the rotation guide part αη provided at the tip of the rotation adjustment jig a→ is loosely fitted to the outer circumference of the fixing screw (11), and the four parts (9 ). Next, the driver 00 is inserted into the through hole (1), and its tip is fitted into the fixing screw 00. By rotating the handle part 00 in this state, the adjustment table (5) can be rotated around the regulating step part (2B) via the L-shaped part (G) and the cut/k recess (9). . After setting the inclined post (3) and the rotating roller post (2) so that they form a precise relative positional relationship, the driver 01
Tighten the fixing screw αυ with
).

In the above-mentioned embodiment, the case where the present invention is applied to a V-1'R post device has been described, but it goes without saying that similar effects can be obtained even if the present invention is applied to other relative position rotation adjustment devices.

Effects of the Invention If the rotation adjustment jig according to the present invention is used in the above-mentioned roku, since the fixing screw is used for the co-movement guide of the jig, the looseness of the guide part of the jig can be eliminated, and the jig structure can also be improved. Smooth and highly accurate rotational adjustment can be performed very easily and without increasing the number of parts for guiding the jig on the side of the part to be adjusted. Moreover, there is no need for the first support base (mounting base) to have a part that engages with the jig, and the first support base can be made smaller than before, making it possible to downsize the device.

In addition, since the rotation guide part that fits into the fixing screw is provided coaxially with the through hole part, when adjusting the rotation of the second support base or fixing it, the driver and jig must be set alternately each time. This has the tremendous effect of allowing work to proceed at almost the same time without having to make any repairs. Furthermore, the through hole also serves as a rotational guide for the screwdriver, which has the advantage of allowing quick screw tightening work.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram to explain the importance of positional accuracy of the inclined post, Figure 2 (al is a sectional view of the V-1-R post device and conventional jig, Figure 2 (b) is a cross-sectional view of the V-1-R post device and conventional jig, Figure 3 is a perspective view of the VTR post device, Figure 4 is the VT
FIG. 5 is a sectional view of an example of a post device of R and a jig according to the present invention, and FIG. 5 is a perspective view of the post device of V 'l' R. (2)... Rotating roller post, (2A) (2B)...
・Regulation step, (3)... Inclined point, (5)... Adjustment stand (second support stand), (6)... Mounting stand (first support stand), (7 )...Rotating roller, (9)... Notch recess (engaged part), OJ)... Fixing screw, (A)...
Length, ratio, (14... female screw part, (14) - rotation adjustment jig, o-uniformity... handle part, (1 (9... columnar part, (
17)...Rotation guide part, Q8)...L-shaped part (engaging part), 0s...driver, wing...through-hole part agent Yoshihiro Morimoto Figure 1 4 Figure 2 c11 (JP) Figure 3 Figure 4

Claims (1)

[Claims] (1) It has a first support base and a secured part that engages with the jig, and the relative position with respect to the first support base is determined via the secured part! :d A rotation adjustment jig used in a relative position adjustment device comprising an adjustable second support base and a fixing screw for fixing the second support base to the first support base, the rotation adjustment jig comprising: a columnar part having a through hole through which a driver for tightening the fixing screw is inserted and which guides the rotation of the driver;
One feature is that the columnar part includes a rotation guide part located at the tip of the columnar part and rotatably loosely fitted to the fixing screw, and an engaging part to engage with the secured part. Rotation...! 2. The rotation adjustment jig according to claim 1, wherein the M adjustment tool 2° rotation guide portion is disposed coaxially with the L through hole portion.