JP3529001B2 - Mobile equipment mounting 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 mobile device mounting apparatus for slidably taking a mobile device in and out of a predetermined position in the device such as a copying machine.

[0002]

2. Description of the Related Art A device such as a copying machine has a component portion which can be slidably taken in and out in accordance with the necessity in using the device and the demand for maintenance and inspection. For example, in a color copying machine, a transfer drum unit can be taken in and out of the main body of the device. When such a part is called a mobile device, the mobile device is carried by a mobile device carrying device, and the mobile device carrying device is guided by a guide device provided on the device body side,
It is put in and taken out from the device body.

In the conventional mobile device mounting apparatus, the mobile device carrying device is mounted on a movable frame, and the movable frame is slidably mounted on a fixed frame provided on the device body side. When the mobile device supporting device is attached to the device main body side, the positional relationship between the parts inside the mobile device supporting device and the parts on the main body side of the device must be accurate. However, due to the structural constraint that the mobile device supporting device must be slidable with respect to the device main body, a certain gap is required in the guide device, and the gap between the device main body and the mobile device supporting device is required. However, some position error is unavoidable.

Therefore, in order to reduce this position error, a fitting pin having a conical top protruding parallel to the moving direction is provided on the movable frame of the moving device carrying device, and
When the mobile device carrying device is mounted in the device body by forming the fitting hole in the fixed frame of the device body, by fitting the fitting pin into the fitting hole, the mobile device carrying device with respect to the device body. Are being positioned.

However, in the case of positioning the moving device carrier by using the fitting pin and the fitting hole in this way, if the axis center of the fitting pin and the axis center of the fitting hole are displaced, When the dowel pin is fitted into the fitting hole, the position of the mobile device carrier moves in the direction perpendicular to the original direction of movement of the mobile device carrier, and the gap in the guide device decreases or disappears. To do. For this reason, there arises a problem that it becomes difficult to slide the mobile device supporting device.

In order to deal with such a problem, a technique is proposed in which the mobile device carrier can be slightly displaced in the vertical direction perpendicular to the original moving direction of the mobile device carrier. Has been done. As such an example, for example, there is an apparatus described in Japanese Utility Model Laid-Open No. 62-204017. In the device described in the publication, the guide rail is screwed through a long hole extending in the vertical direction, and the long hole absorbs a position error.

However, the device described in the above publication has a problem that it can only absorb the position error in the vertical direction and cannot absorb the position error in the other directions. Moreover, although there are usually a plurality of fitting holes and fitting pins, the deviations of the corresponding central axes do not all occur in the same direction. There is a problem that other central axes cannot be matched even if they can be matched.

[0008]

In order to solve such a problem, a stepped screw is used as a means for connecting a movable frame provided with a fitting pin and a movable frame provided with a guided body. Using this stepped screw, insert the neck of the stepped screw into a through hole that is larger in diameter than the neck of the stepped screw that is opened in the movable frame where the guided body is provided, and provide the threaded part of the stepped screw on the guided body. The applicant of the present application has proposed a mobile device supporting device in which a movable frame provided with a guided body and a movable frame provided with a fitting pin are coupled to each other by being screwed to the movable frame. 06
It was filed on Dec. 16, 1994 as No. -334127.

However, in the mobile device carrying device described in the above-mentioned application, since there is a gap around the neck of the stepped screw over the entire circumference, the mobile device carrying device is subject to vibrations when the mobile device carrying device is taken in and out. The carrier device may vibrate. When the vibration of the mobile device supporting device is severe, the mobile device, which is vulnerable to vibration such as a transfer drum included in the mobile device supporting device, may be damaged.

Therefore, according to the present invention, even if there is a positional error between the device body and the mobile device supporting device, the alignment can be performed smoothly and accurately, and the occurrence of abnormal vibration can be prevented. An object of the present invention is to provide a mobile device mounting device capable of performing the above.

[0011]

According to the present invention, there is provided a body frame having a fitting hole and a guide member provided along the moving direction of a mobile device and having its position fixed, and carrying the mobile device. A mobile device mounting device having a fitting pin that is movable along the guide member and has a fitting pin that can be fitted into the fitting hole, wherein the mobile device carrying device is the guide member. A first guide body that is guided and extends in a direction parallel to the moving direction of the mobile device;
Of the movable frame and the fitting pin to be fitted into the fitting hole of the machine body frame are set up, and the relative position between the movable frame and the first movable frame in a plane perpendicular to the moving direction of the moving device is set. It is characterized by comprising a second movable frame extending in a direction perpendicular to the moving direction of the mobile device coupled to the first movable frame by a coupling means capable of elastically changing in any direction .

The connecting means comprises a head portion, a neck portion having a diameter smaller than the head portion, and a screw portion having a diameter smaller than the neck portion.
Stepped screw screwed into the movable frame of the stepped screw, an insertion hole having a diameter larger than the necked part of the stepped screw opened in the second movable frame into which the neck part of the stepped screw is inserted, the insertion hole and the stepped part. And an elastic member provided between the attached screws.

When the mobile equipment carrier is mounted on the equipment main body, if the center axis of the fitting hole and the center axis of the fitting pin are deviated from each other, the mobile equipment carrier is placed in a direction perpendicular to the moving direction of the mobile equipment. A directional force is applied, but this force is absorbed by the compression of the elastic member provided between the insertion hole and the stepped screw. Therefore, it is possible to prevent an excessive force from being applied to the guide member from the mobile device supporting device, and the mobile device supporting device can be smoothly taken in and out.

Further, even when the vibration from the device body is transmitted to the mobile device supporting device, the vibration is absorbed by the elastic member, so that the mobile device supporting device does not vibrate abnormally. Therefore, there is no risk of damaging a moving device such as a transfer drum, which is vulnerable to vibration, included in the mobile device supporting device.

[0015]

1 is a schematic plan view showing an embodiment of a mobile device mounting apparatus of the present invention.

Mobile unit 1 which is a mobile device supporting device
Is a device that carries a transfer drum TD as a mobile device and is detachably attached to the machine body frame 2 provided on the device body side.

The substantially U-shaped machine body frame 2 fixed to the main body of the apparatus extends in parallel with the moving direction of the moving body unit 1 (shown by an arrow AB) and is arranged in parallel with each other with a predetermined interval. A pair of first fixed frame portions 2a, 2a
And a second fixed frame portion 2b located on the back side of the device body and extending in a direction perpendicular to the moving direction of the mobile unit 1, and the mobile unit 1 located on the front side of the device body.
It is composed of a pair of third fixed frame portions 2c, 2c extending in a direction perpendicular to the moving direction. A pair of guide members 3 for slidably guiding the moving body unit 1 are provided on the first fixed frame portions 2a, 2a so as to extend parallel to the moving direction of the moving body unit 1. Also, the second fixed frame portion 2b and the third fixed frame portions 2c, 2c are fitted with fitting holes 5a, 5b into which fitting pins 4a, 4b, 4c, 4d provided in the mobile unit 1 are engaged. , 5c, 5d are formed.

The mobile unit 1 extends in parallel to the moving direction of the mobile unit 1 and is provided with a pair of first movable frame portions 1a, 1a which are arranged in parallel with each other with a predetermined gap.
a, a second movable frame portion 1b located on the back side of the apparatus body and extending in a direction perpendicular to the moving direction of the moving body unit 1, and a movement of the moving body unit 1 located on the front side of the apparatus body. It has a third movable frame portion 1c extending in a direction perpendicular to the direction.

The first movable frame portions 1a, 1a include
Guided members 6 and 6 that are slidably guided by the guide member 3 are provided. Further, the second movable frame portion 1b is fitted with the fitting pins 4a and 4b protruding in the moving direction of the moving body unit 1 and having conical tops, and the third movable frame portion 1c is also similarly fitted. Dowel pin 4
c and 4d are planted.

A pair of first movable frame portions 1a, 1a
The second movable frame portion 1b is attached to the end portion on the back side of the body by screws 7a and 7b, and the end portion on the front side includes
The third movable frame portion 1c is attached by screws 7c and 7d.

Here, in the present embodiment, the screws 7a, 7a
Stepped screws are used as b, 7c and 7d.

FIG. 2 is a partially enlarged cross-sectional view showing the mounting portion by the screw 7a indicated by the symbol A in FIG. 1 in an enlarged manner. The screws 7b, 7c and 7d have the same structure.

The stepped screw 7a is composed of a head portion 8, a neck portion 9 and a screw portion 10. The neck 9 has a diameter of the head 8
Is smaller than the maximum diameter and is larger than the diameter of the threaded portion 10. Further, the second movable frame portion 1b is formed with an insertion hole 11 having a diameter smaller than the maximum diameter of the head portion 8 and larger than the diameter of the neck portion 9, and the first movable frame portion 1a is provided with a threaded portion 10. A screw hole 12 for screwing in is formed.

FIG. 3 shows a second screw using a stepped screw 7a.
The movable frame portion 1b of the first movable frame portion 1a
It is an exploded perspective view which shows a mode that it is attached to.

In this embodiment, the stepped screw 7 is used.
An annular elastic member 13 made of synthetic rubber or the like is arranged between the outer circumference of the neck 9 of a and the inner circumference of the insertion hole 11. The outer diameter of the elastic member 13 is made substantially equal to the inner diameter of the insertion hole 11, and the inner diameter of the elastic member 13 is made slightly larger than the outer diameter of the neck portion 9 so that it is between the outer circumference of the neck portion 9 and the inner circumference of the elastic member 13. A slight clearance is formed.

Further, the second movable frame portion 1b and the third movable frame portion 1b
Between the movable frame portion 1c of the tie bar 14, 1
4 are stretched over. Further, a support bar 15 is stretched between the second movable frame portion 1b and the third movable frame portion 1c, and the transfer drum TD is supported by the bearing arms 16 and 16 attached to the holding bar 15. It is rotatably supported.

Next, the operation when the mobile unit 1 is mounted on the device body using the above-described mobile device mounting apparatus will be described.

When the moving body unit 1 is pushed in the direction of arrow A, the guided member 6 of the moving body unit 1 is guided by the guide member 3 of the machine body frame 2 and advances toward the inner side of the apparatus main body. When the mobile unit 1 reaches the innermost position, the fitting pins 4a provided on the mobile unit 1,
4b, 4c and 4d engage with fitting holes 5a, 5b, 5c and 5d formed in the machine body frame 2 to position the moving body unit 1 with respect to the machine body frame 2.

Now, as shown in FIG. 4 (a), the fitting pin 4
The central axis 4X of d is relative to the central axis 5X of the fitting hole 5d,
Considering the case of shifting to the right side in FIG. 4, when the tip of the fitting pin 4d is inserted into the fitting hole 5d, the right slope of the conical top 4e slides on the inner peripheral portion of the fitting hole 5d. Contact.
Therefore, as the fitting pin 4d is inserted into the fitting hole 5d, the fitting pin 4d receives a leftward force in FIG. Since the fitting pin 4d and the moving body unit 1 move integrally, the moving body unit 1 also receives a leftward force in FIG. Therefore, the mobile unit 1 is strongly pressed against the guide member 3 on the left side, and when no measures are taken, the mobile unit 1 is moved to the body frame 2
It becomes difficult to slide against.

Here, in this embodiment, the stepped screw 7 is used.
Since the annular elastic member 13 is arranged between the outer circumference of the neck portion 9 of a and the inner circumference of the insertion hole 11, the moving body unit 1
Also, when receiving a leftward force in FIG. 1, the position of the first movable frame portion 1a on the left side does not move, and only the second movable frame portion 1b moves to the left side. The elastic member 13 is compressed. That is, the force in the direction perpendicular to the moving direction of the moving body unit 1 is absorbed by the elastic member 13. Therefore, the moving body unit 1 is not strongly pressed against the left guide member 3, and the moving body unit 1 can smoothly slide on the machine body frame 2.

Also, when the center axis 4X of the fitting pin 4d is displaced leftward or vertically with respect to the center axis 5X of the fitting hole 5d, the moving direction of the moving body unit 1 is similarly. Can absorb the force in the direction perpendicular to.

Further, since the annular elastic member 13 is arranged between the outer circumference of the neck portion 9 of the stepped screw 7a and the inner circumference of the insertion hole 11, the first movable frame portion 1a and the second movable frame portion 1a. There is no rattling with the frame portion 1b, and even if vibration from the device body is transmitted to the mobile unit 1, the mobile unit 1 does not vibrate abnormally. Therefore, there is no risk of damaging the transfer drum TD, which is included in the mobile unit 1 and is susceptible to vibration.

In the above-described embodiment, the second movable frame portion 1b and the third movable frame portion 1c are loosely coupled, but the second movable frame portion 1b and the third movable frame portion 1b are loosely coupled. Since the movable frame portion 1c and the movable frame portion 1c are firmly connected to each other by the tie bar 14, the distance between the second movable frame portion 1b and the third movable frame portion 1c is accurately maintained.

In the above embodiment, the force in the direction perpendicular to the moving direction of the moving body unit 1 is absorbed by the moving body unit 1 side, but it may be absorbed by the machine body frame 2 side.

For example, as shown in FIG. 5, the second movable frame portion 2a of the machine body frame 2 and the guide member 3 are
You may make it couple | bond using the stepped screw 17 which has the structure similar to the stepped screw 7a shown in FIG. Similarly to the stepped screw 7a shown in FIG. 2, the stepped screw 17 shown in FIG. 5 includes a head portion 18, a neck portion 19, and a screw portion 20, but the neck portion 19 has a stepped length in the axial direction. It is longer than the attached screw 7a. This is because the force in the direction perpendicular to the moving direction of the mobile unit 1 (shown by the arrow AB) is absorbed to some extent in this portion. An annular elastic member 21 is arranged around the neck portion 19 like the stepped screw 7a. Reference numeral 22 is an insertion hole formed in the second movable frame portion 2a, and 23 is a screw hole formed in the guide member 3.

In the example shown in FIG. 5, the displacement of the moving body unit 1 in the vertical direction is absorbed by the elastic member 21 being compressed in the vertical direction, and the displacement of the moving unit 1 in the horizontal direction is caused by the elastic member 21 in the axial direction. It is compressed and absorbed.

[0037]

[Effects of the Invention] When the mobile equipment carrier is mounted on the equipment main body, even if the center axis of the fitting hole and the center axis of the fitting pin are misaligned, it is perpendicular to the moving direction of the mobile equipment added to the mobile equipment carrying device. The force in this direction is absorbed by the elastic member provided between the insertion hole and the stepped screw being compressed. Therefore, it is possible to prevent an excessive force from being applied to the guide member from the mobile device supporting device, and the mobile device supporting device can be smoothly taken in and out.

Even when the vibration from the device body is transmitted to the mobile device supporting device, the vibration is absorbed by the elastic member, so that the mobile device supporting device does not vibrate abnormally. Therefore, there is no risk of damaging a moving device such as a transfer drum, which is vulnerable to vibration, included in the mobile device supporting device.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing an embodiment of a mobile device mounting apparatus of the present invention.

FIG. 2 is a partially enlarged cross-sectional view showing an enlarged portion indicated by reference numeral A in FIG.

FIG. 3 is an exploded perspective view schematically showing how the second movable frame portion is attached to the first movable frame portion using a stepped screw.

FIG. 4 is a schematic diagram for explaining the operation of the present embodiment.

FIG. 5 is a partial schematic sectional view showing an embodiment of the mobile device mounting apparatus of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Moving body unit, 1a, 1a ... 1st movable frame part, 1b ... 2nd movable frame part, 1c ... 3rd movable frame part, 2 ... Airframe frame, 2a, 2a ... 1st
Fixed frame portion, 2b ... second fixed frame portion,
2c, 2c ... 3rd fixed frame part, 3 ... Guide member, 4a-4d ... Fitting pin, 5a-5d ... Fitting hole, 6,
6 ... Guided member, 7a to 7d ... Screw, 8 ... Head, 9 ...
Neck part, 10 ... screw part, 11 ... insertion hole, 12 ... screw hole, 1
3 ... Elastic member, 14 ... Tie bar, 15 ... Support bar, 16
... Bearing arm, 17 ... Stepped screw, 18 ... Head, 19 ...
Neck part, 20 ... screw part, 21 ... elastic member, 22 ... insertion hole,
23 ... screw hole, TD ... transfer drum

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Kawabata 2274 Hongo, Ebina City, Kanagawa Prefecture Fuji Xerox Co., Ltd. 62, 204017 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G03G 15/00 G03G 15/00 550 G03G 21/16-21/18

Claims (2)

(57) [Claims] 1. A machine body frame having a fitting hole and a guide member provided along a moving direction of a mobile device and having a fixed position, and carrying the mobile device and moving along the guide member. A mobile device mounting apparatus including a mobile device carrying device having a fitting pin capable of fitting in the fitting hole, wherein the mobile device carrying device has a guided body guided by the guide member. The first movable frame extending in a direction parallel to the moving direction of the mobile device, and the fitting pin to be fitted into the fitting hole of the machine body frame are set up vertically to the moving direction of the mobile device. In the moving direction of the mobile device coupled to the first movable frame by a coupling means capable of elastically changing the relative position to the first movable frame in a desired plane in an arbitrary plane. Second movable flap extending in the vertical direction Mobile equipment mounting apparatus, characterized in that it comprises a chromatography arm. 2. The connecting means comprises a head, a neck having a diameter smaller than the head, and a threaded portion having a diameter smaller than the neck, and a stepped screw screwed into the first movable frame, and a neck of the stepped screw. A through hole having a diameter larger than the neck portion of the stepped screw formed in the second movable frame through which the through hole is inserted, and an elastic member provided between the insertion hole and the stepped screw. The mobile device mounting apparatus according to claim 1.