JPH0528079U - Assembly position adjustment mechanism for middle folding doors - Google Patents

Abstract

(57) [Summary] [Purpose] A misalignment or a fall that occurs between door pieces can be corrected by providing an adjustment mechanism, and various problems caused by the misalignment and the fall can be eliminated. [Structure] A movable mounting plate 26 is provided on one of two door pieces constituting a folding door, and a fixed mounting plate 27 is provided on the other, and the mounting plates are connected by a connecting member 22. The knives are rotatably connected to each other, and the fixed mounting plate has fixed pivot shafts coaxially projecting upward from the projecting pieces projecting horizontally from the upper and lower ends, respectively. The plate has movable and fixed pivots that are coaxially projected downward from the respective projecting pieces that project horizontally from the upper and lower ends, and the connecting member is fitted from above onto the fixed pivots provided on the fixed mounting plate. It has a pivot support shaft support hole and a pivot support shaft support hole into which the movable and fixed support shafts provided in the movable mounting plate are fitted from above.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an assembly position adjusting mechanism for a folding door that is arranged to open and close an opening provided in a casing of an image forming apparatus such as a copying machine.

[0002]

[Prior art]

 For office automation equipment such as copiers and printers, and other electronic equipment, an opening is provided in the housing for the purpose of maintenance, inspection, repair, etc. of internal parts, and a door is provided in the opening so that it can be opened and closed. It is general to keep. As such a door, in order to reduce an occupied space when the door is opened and projected, a folding door which is formed by connecting two door pieces so as to be openable and closable is often used. When this center folding door is pivotally supported at the edge of the opening, the misalignment between the door pieces at the time of assembly caused by the component tolerance between each door piece and the member forming each pivotally supporting part. Has traditionally prevented this by tightly controlling the dimensional tolerances of the parts. For this reason, in the past, problems such as increased cost and difficulty in assembling due to insufficient dimensional margin between parts have occurred.

In addition, the same applicant discloses in Japanese Patent Application No. 1-107768 that a pair of two door pieces is attached to an intermediate hinge portion that connects two door members (door pieces) forming a folding door. Although a configuration is disclosed in which an adjustment mechanism is provided to eliminate steps that are likely to occur during attachment, the adjustment mechanism mainly eliminates only the steps in the height direction between door members. It was difficult to eliminate and prevent the fall. Therefore, problems such as rattling at the time of opening / closing, poor closing, and deterioration of appearance are likely to occur. In particular, a copying machine is provided with a door switch for automatically turning off the power when the door is opened, and the door is provided with a bracket for turning the door switch on and off. Therefore, if the door shifts or falls, the matching of the fitting parts may deteriorate and the switch may not operate effectively.

[0004]

The present invention has been made in view of the above, and it is possible to correct a shift or a fall generated between door pieces when an intermediate folding door is assembled by providing an adjusting mechanism. The purpose is to eliminate various problems caused by the above-mentioned shift and fall.

[0005]

[Constitution of device]

 In order to achieve the above object, the present invention relates to a center-folding door pivotally supported on the side edge of the opening for opening and closing an opening provided in a housing of an electronic device. A movable mounting plate is disposed on one of the door pieces and a fixed mounting plate is disposed on the other, and the mounting plates are rotatably connected to each other by connecting the mounting plates with a connecting member. The fixed mounting plate has fixed pivot shafts coaxially projecting upward from the respective projecting pieces projecting horizontally from the upper and lower ends, and the movable mounting plate is projecting horizontally projecting from the upper and lower ends. The movable member and the fixed pivot shaft that are coaxially projected downward from one piece, and the connecting member has a pivot shaft support hole that is fitted from above into each fixed pivot shaft provided in the fixed mounting plate; With a pivot support hole for fitting the movable and fixed pivots provided on the movable mounting plate from above. The movable mounting plate has a rotation center axis rotatably connected to the one door piece, and an inclination angle for adjusting an inclination angle of the movable mounting plate about the rotation center axis. The present invention is characterized by having an adjusting member, the movable pivot shaft that can move the vertical position of the movable mounting plate, and a posture fixing member that fixes the posture of the movable mounting plate.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

FIG. 1 is an explanatory diagram of an internal configuration of a digital copying machine to which the present invention is applied. A light beam 1 emitted from a laser diode (not shown) passes through a rotary scanning device 2 and an imaging optical component 3 and a folding mirror. It is guided to the photosensitive drum 7 by 4, 5 and 6 to form an electrostatic latent image. The electrostatic latent image on the photosensitive drum is visualized by the developing device 8 and then transferred onto the recording paper P fed from the paper feeding unit 9. After that, the image is fixed by the fixing unit 10 and then discharged to the outside of the apparatus.

A rack 12 for accommodating a substrate 11 such as a memory substrate for storing image information and a control substrate for controlling the entire apparatus is provided at the bottom of the copying machine.

FIG. 2 is a view showing an example of a folding door for opening and closing the opening provided in the casing of the copying machine shown in FIG. 2, and the opening provided in the upper part of the casing (accessing the image forming mechanism described above). The middle folding door 20 for opening and closing the opening for opening) is made up of two door pieces 16 and 17, and for opening and closing the opening (the opening for accessing the printed circuit board) provided at the bottom of the housing. The folding door 21 is composed of two door pieces 18 and 19.

3 (a) and 3 (b) are a back view and a plan view of a connecting member 22 which constitutes the assembly position adjusting mechanism of the present invention. The connecting member 22 is shown in FIGS. 4 (a) and 4 (b). It is detachably attached to the mounting plate shown in (c). In this embodiment, the case where the assembly position adjusting mechanism is attached to the upper folding door 20 is illustrated. That is, the door piece 17 whose one end edge 17a is pivotally supported by the hinge (not shown) at the opening side edge of the upper part of the device and the door piece 16 are openably and closably connected by the attachment plates 26 and 27 and the connecting member 22.

As shown in FIGS. 4 (a), (b) and (c), the movable mounting plate 26 has a stopper hole 28 on the surface of a protruding base 31 fixed along the inner edge of the back surface of the door piece 16. It is rotatably supported around. That is, the movable mounting plate 26 has a narrow strip-shaped base portion 26a and projecting pieces 26b and 26c projecting substantially horizontally from the upper and lower end portions thereof, and a pin and a screw are provided in a stopper hole 28 provided in the lower portion of the base portion 26a. Etc. (rotation center shaft) is loosely fitted and rotatably connected to the surface of the base 31, and a screw (in an elongated hole that communicates with each other is also provided in the elongated hole 29) provided in the upper portion of the base is provided. The tilt angle of the movable mounting plate 26 is made variable by screwing a posture fixing member). An adjusting screw 30 (inclination angle adjusting member) is screwed to a protrusion 26d bent to the door piece 16 side by 90 degrees from an appropriate position on the upper side edge of the base portion 26a, and the tip end of the adjusting screw 30 is attached to a side surface of the base 31. Abutting. Therefore, it is possible to finely adjust the rotation angle of the movable mounting plate 26 around the stop hole 28 by moving the adjusting screw 30 forward and backward toward the side surface of the base. The posture of the movable mounting plate 26 can be fixed by tightening a screw that is screwed to the screw 29.

A vertical position adjusting member 33 having a movable pivot shaft 33a at the tip is screwed into a hole provided in the upper end protrusion 26b of the base portion 26a, and a fixed pivot is provided on the lower surface of the lower end protrusion 26c. The shaft 34 is projected. Both pivot shafts 33a and 34 are arranged coaxially.

The other fixed mounting plate 27 is fixed on a base (substantially the same shape as the base 31) protrudingly provided on the back surface of the door piece 17, and like the movable mounting plate 26, has a U-shaped configuration including a base portion and upper and lower end portions. However, since it is fixed to the base, it does not have screws for adjusting the vertical position and tilt angle. Fixed projections 35 and 36, as shown in FIG. 3, are fixedly projecting upward from the projecting pieces horizontally projecting from the upper and lower ends thereof.

The connecting member 22 shown in FIG. 3 has plate-like protrusions 22b, 22c, 22d and 22e formed by bending 90 degrees at both ends of the upper and lower edges of the plate-like base portion 22a, Holes (pivot shaft support holes) for loosely fitting the pivot shafts 33a, 34, 35, 36 are formed through the protrusions.

When the door piece 16 is assembled to the door piece 17 having the above-mentioned structure by using the assembly position adjusting mechanism (22, 26) of the present invention, first, the fixed attachment plate 27 is turned upward and downward. The fixed mounting plate 27 is attached to the door piece 17 by loosely fitting the holes formed in the projecting pieces 22c and 22e of the connecting member 22 to the pivot shafts 35 and 36 that are provided to project. Subsequently, the pivots 33a, 34 are inserted into the holes of the projecting pieces 22b, 22d of the connecting member 22 from above and are loosely fitted, so that the door piece 16 can be rotatably connected.

Note that the load from the door piece 16 is applied only to the projecting piece 22b via the upper pivot shaft 33a, and is not applied to the lower projecting piece 22d via the lower pivot shaft 34. The distance between the pivots 33a and 34 is set. Similarly, with respect to the fixed mounting plate 27, the load of the door piece 16 applied via the connecting member 22 is applied only to the upper pivot shaft 35 via the upper protrusion 22c, and to the lower pivot shaft 36. Sets the distance between the pivots 33a and 35 so that they do not add. As a result, it is possible to prevent loads in the thrust direction from being applied to the lower protrusion 22d and the lower pivot shaft 36, respectively. As a result, it is possible to minimize defects caused by variations in component accuracy.

As shown in the front view of FIG. 5A, when the vertical position of the door piece 16 with respect to the door piece 17 is displaced as shown in the drawing, the vertical position adjusting member 33 is moved in the vertical direction (see FIG. In the case of), it is shifted downward, so move it in the direction of pulling up) and perform fine adjustment. This makes it possible to correct the step between the door piece 17 and the step.

Next, when the door piece 16 is tilted as shown in FIG. 5 (b), the movable mounting plate 26 is screwed into the stop hole 28 and the long hole 29 which are fixed to the base 31. By loosening the screw for adjusting and then adjusting the pushing amount of the adjusting screw 30, the door piece 16 can be rotated around the fixing hole 28 and the fall can be corrected. After that, the fixing work is completed by tightening and fixing the screw.

Although the assembly position adjusting mechanism is provided on the door piece 16 side in this embodiment, it may be provided on the other door piece 17 side. Further, although the movable mounting plate 26 is configured to be rotatable around the stopper hole 28 located below, the lower end portion of the mounting plate 26 may be rotated by positioning the stopper hole 28 above. Good.

As described above, according to the present invention, the two door pieces 16 and 17 constituting the center folding door are assembled by the assembly position adjusting mechanism including the connecting member 22 and the movable and fixed mounting plates 26 and 27. By rotatably connecting and adjusting the adjusting screw 30 and the vertical position adjusting member 33, the tilting of one door piece and the vertical shift can be easily eliminated. As a result, it is possible to eliminate rattling at the time of opening and closing, poor closing, deterioration of appearance, and the like. In particular, it is possible to prevent the deterioration of the consistency between the door switch provided in the copying machine and the bracket for turning the switch on and off, and always operate the switch normally.

[0021]

[Effect of the device]

 As described above, according to the present invention, by providing an adjusting mechanism, it is possible to correct the misalignment or collapse that occurs between the door pieces when assembling the center-folding type door. Various problems can be solved.

[Brief description of drawings]

FIG. 1 is a schematic configuration explanatory view of a copying machine to which an assembly position adjusting mechanism of the present invention is applied.

FIG. 2 is an external view of the copying machine shown in FIG.

3A and 3B are a rear view and a plan view showing the structure of a folding door to which the present invention is applied.

4 (a), (b) and (c) are a side view, a front view and a plan view showing the structure of a movable mounting plate.

5 (a) and 5 (b) are explanatory views showing a case where a door piece is vertically displaced and a case where it is collapsed, respectively.

[Explanation of symbols]

16 ... Movable door piece, 17 ... Fixed door piece, 20,
21 ... center folding door, 22 ... connecting member, 22a ...
..Base portions, 22b, 22c, 22d, 22e ... Projecting pieces, 26, 27 ... Mounting plate, 26a ... Base portions, 2
6b, 26c ... ends, 28 ... stop holes, 29 ...
・ Slots, 30 ・ ・ ・ Adjusting screw (tilt angle adjusting member), 3
1 ... Base, 33a, 34, 35, 36 ... Pivot shaft,

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location G03G 15/00 101 8910-2H

Claims (2)

[Scope of utility model registration request] 1. A center-foldable door pivotally supported at the side edge of an opening for opening and closing an opening provided in a housing of an electronic device,
A movable mounting plate is disposed on one of the two door pieces constituting the folding door, and a fixed mounting plate is disposed on the other, respectively, and
By connecting the mounting plates with a connecting member, the door pieces are rotatably connected with each other, and the fixed mounting plates are coaxially projected upward from the projections horizontally projected from the upper and lower ends, respectively. And a movable mounting plate having movable and fixed pivots that are coaxially projected downward from the respective projecting pieces that horizontally project from the upper and lower ends, and the connecting member is the fixed It has a pivot support shaft support hole which is fitted to each fixed pivot shaft provided on the mounting plate from above, and a pivot support shaft hole which is fitted on the movable and fixed pivot shaft provided on the movable mounting plate from above. An assembly position adjustment mechanism for a folding door that is characterized in that 2. The movable mounting plate adjusts a rotation center axis rotatably connected to the one door piece and an inclination angle of the movable mounting plate about the rotation center axis. The tilt angle adjusting member, the movable pivot shaft that can move the vertical position of the movable mounting plate, and a posture fixing member that fixes the posture of the movable mounting plate. Assembling position adjustment mechanism for middle folding door.