JPS59188608A - Position adjusting device of parts - Google Patents

Abstract

PURPOSE:To adjust correctly and exactly a position of parts by turning a position adjusting part against a fixed member by a rotation of a position adjusting screw, and displacing the parts in the adjusting direction. CONSTITUTION:In order to adjust a Selfoc lens array 1 to an optically optimum position between an original placing plate glass 2 and a photosensitive body 3, the Selfoc lens array 1 is held by a holding part 17 of position adjusting members 9, 10, respectively, by a holding frame 4 and connecting members 5, 6, and thereafter, clamp springs 15, 16 are inserted into a groove 19 of the holding part. By rotating suitably a position adjusting screw 27, an adjusting part 18 is turned centering around a neck part 21. The connecting member 5, 6 for holding the Selfoc lens array 1 are pressed and energized against the adjusting part 18 by the clamp springs 15, 16, therefore, as the position adjusting screw 27 rotates in both the rotating directions, the connecting members 5, 6 are pushed up or pushed down against a spring force of the clamp springs 15, 16 or by its spring force.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a position adjustment device for parts that require fine adjustment after assembly, and in particular to an assembly of SELFOC lens arrays, optical lens system chargers, static eliminators, etc. in copying machines. This invention relates to a part position adjustment device that allows the position of parts to be adjusted.

In an electrophotographic apparatus, it is necessary to arrange, for example, a SELFOC lens array or a corona charger at a predetermined position relative to a photoreceptor. An example of such a position adjustment device is the one shown in Japanese Utility Model Publication No. 57-2998. In this device, guide holes are formed at both ends of a focusing light transmission body such as a SELFOC lens array, and a shaft member is passed through the guide hole and an eccentric hole of an adjustment sleeve having one eccentric hole. is rotatably held by a support frame that movably supports the focusing light transmission body.

Therefore, by appropriately rotating the adjustment sleeve, the shaft member held in the eccentric hole of the adjustment sleeve will perform eccentric movement and change its position with respect to the support frame.

The focusing light transmitting body can be adjusted in position with respect to the support frame by changing the position of the guide hole portion as the position of the shaft member changes. With this type of adjustment device, when supporting both longitudinal ends of the component in the casing, it is necessary to adjust the eccentric sleeve from the direction perpendicular to the longitudinal direction, so it must be operated from inside the casing. Each time you make an adjustment, you have to reach inside the narrow housing or remove surrounding parts before making adjustments. Another example of a component position adjustment device that eliminates such defects is the
There is also one shown in Publication No. 5-44949. This device relates to a position adjustment device for a corona charger,
A sliding plate that supports the corona charger at one end and slides along the guide plate is arranged between a pair of guide plates arranged in parallel, and is engaged with the sliding plate so as to drive the sliding plate. and a cam mechanism rotatably supported by the parallel guide plate,
The position of the corona charger can be adjusted with respect to the guide plate by moving the sliding plate by appropriately rotating the cam mechanism. However, the device for adjusting the position of parts with such a configuration and the device described in the above-mentioned Japanese Utility Model Publication No. 57/2993 are difficult to finely adjust, and even once adjusted, the position of the parts is likely to shift. Attempting to solve this problem would require a more complicated power transmission mechanism, making the device complicated.

An object of the present invention is to solve the above-mentioned problems and provide a component position adjustment device that is appropriately configured to accurately and reliably adjust the positions of assemblies and components such as a SELFOC lens array and a charger with a simple configuration. It's about doing.

The present invention includes a holding part that is attached to a fixed member and holds a component whose position is to be adjusted so as to be movable in a predetermined adjustment direction; an elastic member that elastically presses the component held by the holding portion against the position adjustment portion;
a position adjustment screw screwed into the fixing member such that the tip abuts the position adjustment part, and rotation of the position adjustment screw rotates the position adjustment part with respect to the fixation member to move the component in the adjustment direction. This feature is characterized in that it is configured to be displaced as follows.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a partially sectional side view showing the configuration of an example of a component position adjustment device according to the present invention.

In order to form an image of the original to be copied on the photoreceptor of the copying machine, the SELFOC lens array 1 is attached to the glass 2 which is the original platen.
and the photoreceptor 8. The SELFOC lens array 1 is held by a holding frame 4, and this holding frame 4. The side plate 7 of the copying machine body to which the SELFOC lens array is to be fixed as well as the connecting members 5 and 6 at both longitudinal ends of the
, 8 are fixed with position adjusting members 9 and 10 in relative positions of the connecting members 5 and 6. The position adjusting members 9 and 10 are configured by fitting the integrally formed bosses]-1, , and 12 into holes formed in the side plates 7e8, and screws 1.-1 from the outside of the side plates.
Fix by screwing according to 8.14. The SELFOC lens array 1 is held on the side plates 7 and 8 by engaging and holding the connecting surfaces of the connecting members 5 and 6 with the holding portions of the position adjustment members 9 and 10. Furthermore, the clamp springs 1.
5, 16 to position the connecting member 5°6 and adjust the position i7 to the adjusting member 9.
, 10 to bias it. As shown in FIGS. 2(a), 2(b), and 2(c), the position adjustment members 9 and 10 include a holding portion 17 that defines a space for holding components such as a SELFOC lens array, and a holding portion 17 that defines a space for holding components such as a SELFOC lens array. An adjustment part 18 rotatably connected to the holding part 17 so as to position the part in a predetermined position, and a crank for fixing a clamp spring 15116 that urges the adjustment part 18G to press the part. It has a spring insertion groove 19 and a protrusion 20 for fixing the clamp spring to the groove 19.

The adjustment part 18 and the holding part 7 are connected by a neck part 21, and the adjustment part 18 can rotate around this neck part 21 within a plane including the adjustment direction of the SELFOC lens array 4. . Preferably, such a position adjustment member is formed as an integrally molded plastic product.
It can also be configured separately. Also, the position adjustment members 9, l
A screw hole 28 is formed on the side surface of O, and these members 9, 1
0 to the side plates 7 and 8 with screws. The clamping spring 15,16 has two legs 2, as shown in FIG.
4 and a notch opening 25, and the position adjustment device 9. lO
By inserting the legs 24 into the grooves 19 and engaging the protrusions 20 in the cutout openings 25, the part is elastically pressed against the adjustment part 18 of the member 9.10. connecting member 5,
6 is dimensioned to fit within the space formed in the holding part]7, but the connecting part is adapted to be able to be displaced within the holding part in the direction of the adjustment force. A pressed groove 22 is formed on the surface of the adjusting part 18 of the position adjusting device 9, 10 facing the side plates 7, 8, and a screw hole is provided at a position corresponding to this pressed groove on the side plate 7.8. The adjustment screw 27 is screwed together, and the tip of the screw 27 is brought into contact with the pressed grooves 22 of the members 9 and 10.

The operation of the component position adjusting device having such a configuration will be explained. SELFOC Lens Array]-k To adjust to the optically optimum position between the document platen glass 2 and the photoreceptor 3,
The SELFOC lens array is held by a holding frame 4, a connecting member 5,
6, the clamp springs 15 and 1.6 are held in the holding parts 17 of the position adjustment members 9 and 10, respectively.
Insert into 9.

Since the position adjustment members 9 and 10 are fixed to the side plates 7 and 8 of the main body of the copying machine, the position of the SELFOC lens array 1 is adjusted with respect to the side plates 7 and 8. By appropriately rotating the position adjustment screw 27, the adjustment portion 18 is rotated about the neck portion 21. The connecting members 5 and 6 that hold the SELFOC lens array are connected to clamp springs 15.
16 to press against the adjustment part 18, as the position adjustment screw 27 rotates in both rotational directions, the connecting members 5 and 6 are forced to move against the spring force of the clamp springs 15 and 16. It is pushed up or down by the spring force. The position of the SELFOC lens array may be adjusted by adjusting the position of one end or both ends. Therefore, the position of the SELFOC lens array can be adjusted by rotating the position adjustment screw 27.

Since the pitch of this screw 27 is small, it is easy to finely adjust the SELFOC lens full-ray position, and there is little risk of it shifting once adjusted. The V@ adjustment member at the same position is not limited to being made of plastic, but may also be made of metal.

FIG. 4 is a partially exploded perspective view showing the structure of another example of the component position adjustment device according to the present invention. The position adjustment device shown in FIGS. 1 to 3 differs only in that the component that performs position adjustment is a corona charger, so the same parts as in FIGS. 1 to 3 are given the same reference numerals. Similar explanations will be omitted. A rail portion 32 is integrally formed on the shield 81 of the corona charging machine 30, and this rail portion 32 is inserted into the sliding groove 3 of the frame member 33.
Install it within 4. A connecting portion 85 for holding the corona charger 30 on the position adjusting member 9° 10 is provided on the opposite side of the sliding groove 34 at the end of the frame member 83. A protrusion 26 is formed at the coupling part of the coupling part 35, and the protrusion 26 is connected to the position adjustment members 9, 1.
The protrusion 2 is fitted into the space defined in the holding part 17 of 0.
6 so that the lower end of the member 9°]0 comes into contact with the adjustment part]8. A certain distance is maintained between the connecting portion 35 and the frame member 88, and an opening (not shown) is provided in the side plate 7.8 so that the corona charger 3o can be taken out from the frame member 38 through this opening.

The operation of the component position adjustment device having such a configuration will be explained. The distance between the corona charger 3o and the photoreceptor face must be kept at an extremely small gap at all times. Therefore, if the position adjustment members 9 and 10 are fixed at appropriate positions on the side plates 7 and 8 of the copying machine main body, and the corona charger 30 is held via the connecting part 35, the position adjustment members 9 and 10 can be fixed with respect to the side plates 7 and 8. 27 as appropriate, position adjustment member 9. The adjusting part 18 of the IO rotates a predetermined amount around the neck part 21, and the connecting part 3
5. Corona charger 30 via frame member 33 and rail part 32
Fine adjustment of the position is performed by moving the position by a predetermined amount. Since the corona charger 30 can be easily removed from the side plates 7 and 8, it is convenient for normal maintenance, inspection, and replacement. Moreover, this position adjustment can be performed simply by turning the position adjustment screw 27 from the side of the side plate, so that these adjustments can be easily performed.

As is clear from the above description, the component position adjustment device according to the present invention includes a holding section that is attached to a fixed member and holds the component whose position is to be adjusted so as to be movable in a predetermined adjustment direction; and a position adjusting part connected to the part so as to be rotatable in a plane including the FA force adjustment direction; elastically pressing the component against the position adjusting part by an elastic member;
The fixing member is equipped with a position adjusting screw screwed together so that the tip of the fixing member contacts the position adjusting part, and by rotating the position adjusting screw, the position adjusting part is rotated relative to the fixing part (2), and the self-locking Because it is configured to adjust the position of temporary holding parts such as the lens array and charger, the #J5 ratio structure allows for easy one-line minute adjustment of parts, and has the effect that once the adjusted position is not shifted. Furthermore, since this position adjustment can be performed from outside the main body of the apparatus, there is also the advantage that adjustment during assembly, maintenance, fixing, etc. are extremely easy.

[Brief explanation of drawings]

FIG. 1 is a partially cross-sectional side view showing the configuration of an example of the component position adjustment device according to the present invention. FIGS. 3 is a perspective view showing the clamp spring of the component position adjustment device of FIG. 1; FIG. 4 is a front view, side view, and top view of the position adjustment member of the device; FIG. It is a partial perspective view which shows the structure of another example in an exploded manner. 1... SELFOC lens array 2... Glass 3... Photoreceptor 4... Holding frame 5, 6... Connecting part utilization 7.8...Side plate
9, 10... position adjustment member l l, 1.
2... Boss 18, 14... Screw] -5, 16
...Clamp spring 17...Holding section 18...Adjustment section 19...
Front 20...Protrusion 21...6 parts
22... Pressed groove 24... Leg portion 25
...Opening 26...Protrusion 27...Position adjustment screw aO...Corona charger 38...Frame member 35...
...Connection part. Patent applicant Olympus Optical Industry Co., Ltd. Patent attorney Oki Sugimura g:, (・,'n Figure 2 (C) Figure 3

Claims (1)

[Claims] 1 A holding part that is attached to a fixed member and holds a component whose position is to be adjusted so that it can be displaced in a predetermined adjustment direction, and a position adjustment unit that is connected to this holding part so as to be rotatable in a plane that includes the adjustment direction. an elastic member that elastically presses the component held by the holding part against the position adjustment part; and a position adjustment screw screwed into the fixing member such that the tip abuts the IR adjustment part at the position. 1. A component position adjustment device, comprising: a component position adjusting device, comprising: a component position adjustment device configured to rotate a position adjustment portion with respect to a fixed member by rotation of the position adjustment screw, thereby displacing the component in an adjustment direction.