JP2003273536A - Resin door and office apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an office apparatus to whose door rigidity is afforded efficiently and has stable opening/closing performance even if the door is large, by reinforcing inside of the door including a particular direction, paying attention to that deformation of the door appears in a particular direction of the door when opening/closing operation force is exerted by an operator. <P>SOLUTION: The plate-like resin door 15 opens/closes an open face 14 of a body 13 with one side of the door supported at rotating fulcrums 30, 31 axially, and a reinforced sheet 16 having the rigidity 26 is positioned at fixing portions of four corners and intermediate points inside an outer door 25 and is fixed to the outer door 25 with screws 35 in one unit. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine,
Regarding resin doors used for doors of office equipment such as paper post-processing devices (finishers), more specifically, resin that can ensure stable opening / closing operations even with large resin doors that are thin Regarding door manufacturing and office equipment.

[0002]

2. Description of the Related Art Generally, a door mounted on an office machine such as the one described above is a flat resin door which is pivotally supported on one side to allow a large opening and closing of an opening on the main body of the machine. I have set up.

In this case, if the large resin door is directly attached to the large office equipment, the rigidity of the door itself cannot be ensured.
When the door is opened and closed, the large flat door bends like a bow and wobbles, causing an unstable opening and closing operation and giving the product a poor impression.

For example, as shown in FIG. 7, office equipment 71
When opening the large-sized resin door 73 that covers the vertically long opening surface 72, if the handle 74 is at the upper position suitable for the opening / closing operation position of the operator, the upper side and the lower side of the large-sized resin door 73 are When the upper side receives an external force in the opening direction, the lower side is opened with a delay. At this time, since the large-sized resin door 73 is a large flat plate and is a thin one piece, FIG. As shown in A), it is deformed into an outwardly bowed state (direction in which the outer surface of the door shrinks), and overall, the pivotal support that attaches the door to the office equipment housing with the hinge is used as the pivot point. When the handle is bent so as to twist as an action point, and the handle is pulled away from the office equipment main body side, the opening operation is performed in a wobbled and unstable state.

When the large resin door 73 is closed,
When the operator applies an external force in the closing direction, the door lower side is closed with respect to the handle 74 on the upper side of the door, and the outward bow is warped as shown in FIG. 8 (B). To the open state (the direction in which the inner surface of the door contracts), and similarly the flat plate-shaped large-sized resin door 73 bends like a twist, and is closed in a wobbled and unstable state.

[0006]

Therefore, although the following improvement measures are known, at present, an appropriate large-sized resin door cannot be obtained.

(1) It is conceivable to attach a reinforcing member such as a metal plate to the inner surface of the door so that the door itself has rigidity.
In this case, the weight of the door becomes heavy and the opening / closing resistance of the door increases.

(2) In order to secure the rigidity of the door itself, it is known to provide a blow-molded (hollow-molded) hollow door molded product. In this case, a mold having a complicated shape and many fabrications are made. It takes man-hours and the cost becomes high.

(3) Further, it is conceivable that the reinforcing ribs on the inner surface of the door are made to project longer in the vertical and horizontal directions and the depth direction to enhance the rigidity. However, the longer the protruding length of the reinforcing ribs, the longer the die removal margin is. In addition, manufacturing becomes difficult, and adverse effects such as whitening on the surface of the resin door are likely to occur, resulting in a long manufacturing time and high cost.

(4) Further, in order to give the resin door rigidity, it is possible to integrate a plurality of divided doors to manufacture a large resin door, but in this case, the number of parts increases. Manufacturing man-hours increase, leading to higher costs.

(5) It is conceivable that the handle of the door is provided at an intermediate position where the warp and the flexure at the time of opening and closing the door are minimized. However, in this case, the attachment position of the handle is restricted to the intermediate position, the degree of freedom of the attachment position of the handle is reduced, the operability of the operator is poor, and the handle cannot be attached at the most suitable position for office equipment. .

In view of this, the present invention focuses on the fact that the door is deformed in a specific direction of the door when an opening / closing operation force is applied by the operator, and a large resin is reinforced by reinforcing the inner surface of the door including the specific direction. It is an object of the present invention to provide a resin door and office equipment that can efficiently provide rigidity and obtain stable opening / closing performance even if the door is made.

[0013]

DISCLOSURE OF THE INVENTION The present invention is a plate-shaped resin door which pivotally supports one side on a rotation fulcrum to open and close an opening surface on the main body side, and a reinforcing sheet having rigidity on the inner surface. It is characterized by having annex. Here, the main body corresponds to office equipment such as a copying machine and a sheet post-processing device, and the reinforcing sheet is made of a foamed resin such as a foamed molded plate (polypropylene, polyethylene) or the like that is lightweight and has sufficient rigidity. Can be made of any material.

The term "side-by-side" means that the two members of the door and the reinforcing sheet are integrally connected to each other to form an integrated body.

As a result, even if the resin door is used, the reinforcing sheet attached to the inner surface of the door has rigidity,
Even if the resin door is thin, it has rigidity, and even if one end of the door receives opening / closing operation force, it can maintain a stable posture without bowing or wobbling, and highly reliable opening / closing performance is obtained. To be In addition, when it is applied to a door of office equipment or the like, it is possible to realize a high-class exterior with a sense of rigidity. In addition, since the door has a double structure due to being provided with the reinforcing sheet, it is possible to obtain a soundproof effect of simultaneously suppressing noise generated from the internal drive mechanism and the like. When a foam material is used for this reinforcing sheet, the soundproofing effect is further improved.

In particular, since the reinforcing sheet is provided side by side, the degree of rigidity dependence on the reinforcing rib formed on the inner surface of the door can be reduced and the protruding length of the rib can be shortened, thereby simplifying the manufacture of the door itself.

Further, the resin door and the reinforcing sheet can be manufactured independently of each other, and the both can be easily assembled, so that they can be economically manufactured, and they can be easily integrated by screwing or welding when fixing. For example, the four corners of the inner surface of the door can be fixed integrally by simply screwing the four corners of the reinforcing sheet in correspondence.

Further, since it has been found that the resin door is deformed in a specific direction with respect to the direction of the force when the resin door is deformed, it is suitable to provide the resin door with a reinforcing shape that supports and suppresses the deformation in the specific direction. ing. For example, if a handle for opening and closing the door is provided at the upper corner of the free end side corresponding to the other side with one side of the rectangular door as the pivot, the deformation with the position of the handle as the point of action is the diagonal direction of the door. Therefore, a reinforcing sheet having a shape that matches the diagonal direction may be provided, and the reinforcing sheet may have an X shape, an N shape, a Z shape, or the like. Therefore, the reinforcing sheet is not limited to a rectangular flat plate shape, and may be a long plate shape having a length that can fix at least four corners or two points on a diagonal line.

If a reinforcing sheet is made of a foamed resin material, a lightweight door can be realized because it can be reinforced with a lightweight material. This lightweight door enables smooth door opening / closing operation, and Therefore, the manufacturing is easy as a whole, and the manufacturing cost is low.

Even if the handle is set at the upper corner of the door, the rigidity of the door as a whole prevents the upper corner of the door from being deformed even when an external force is applied during the opening / closing operation. A stable opening / closing operation can be obtained. Therefore, the handle can be provided at any position, and a door with a high degree of freedom in design can be obtained.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. The drawings show a sheet post-processing device as an office machine connected to the latter stage of the copying machine. As shown in FIGS. 1 and 2, the sheet post-processing device 11 is the copying machine 1
2. A plurality of punch holes are opened in one side of the paper P conveyed from the copying machine 12 in a continuous manner in the latter part of the second copying machine, a plurality of predetermined sheets are bound together, and finally offset processing is performed for easy handling. This is a device that performs post-processing of copied sheets.

This paper post-processing device 11 has a device main body 13 having a vertically long rectangular parallelepiped, and a side opening 14 (see FIGS. 3 and 4) having a large opening on one side surface (front side in FIGS. 1 and 2). And a large single-door type resin door 15 that can open the door.

In the apparatus body 13 described above, the front opening 16 is set on the connection surface with the copying machine 12 facing the front stage, and the paper receiving opening 17 is opened above the connection surface. As shown in FIG. 3, a sheet take-in / carrying path 18 is connected to the inside communicating with the sheet.

The above-described sheet take-in / conveying path 18 drives the conveying belt and the conveying rollers via a drive motor M and a drive transmission mechanism (not shown), and nips the sheets P guided to the conveying belt and the conveying rollers one by one. The sheet is conveyed and post-processed, and is a sheet intake / conveyance path 18 from the sheet receiving port 17 on the front side of the apparatus body 13 to the sheet discharging port 19 on the rear side.
A punch hole processing unit 20, a front and back reversing unit 21, and a batch binding unit (staple unit) 22 are arranged in this order on the upper side. Further, the offset processing unit 2 is provided at a position outside the paper discharge port 19.
Equipped with 3.

The processing operation of the sheet post-processing apparatus 11 having such a post-processing structure will be described. The sheet P fed from the copying machine 12 in the preceding stage is conveyed in a substantially horizontal direction and is delivered to the upper sheet receiving port 17. The sheets are sequentially supplied one by one, and are then taken in and conveyed to the sheet take-in / conveying path 18 and guided to the lower punch hole processing section 20, where punch hole processing is performed if necessary, and then, Front and back flip section 2
If it is necessary to reverse the front and back due to step 1, flip it in the specified direction. After that, the sheet is guided to the batch binding section 22, and when the binding process is required, the sheets are bound for each number of sheets designated here.

After that, from the paper discharge port 19 to the device main body 13
The paper P is discharged and guided to the offset processing unit 23 located on the back side of the paper, and here, the slide tray 24 is slid in the width direction (the direction orthogonal to the paper transport direction) to load the paper on the tray. Offset processing is carried out by shifting and mounting in the width direction.

By the way, a vertically long side opening 14 which is opened on one side surface of the device main body 13 is provided with a vertically long resin door 15 which allows one-sided opening and closing so that the inside can be inspected from the side. The resin door 15 is formed by integrally adhering one exterior door 25 formed with a thin wall thickness and one reinforcement sheet 26 formed with a lightweight material.

The exterior door 25 described above, as shown in FIG.
It has a rectangular shape with a size capable of closing the side opening 14 of the device body 13 using a synthetic resin material, and the front surface side is provided with a smooth surface shape that is aesthetically pleasing and the back surface has a height that is easy to manufacture The short reinforcing ribs 27 are dispersed vertically and horizontally to form a protrusion. The upper support 28 is provided at a vertical position on one side edge of the exterior door 25.
And a lower pivotal support portion 29. These pivotal support portions 28, 29 are attached to the hinges 30, 31 projecting up and down on one side corresponding to the side surface opening 14 of the device body 13, and the pins on the door 25 side.
The exterior door 25 is pivotally supported by pivoting (not shown).

A handle 32 for opening and closing the door is provided at a position on the surface side of the upper corner of the exterior door 25 on the free end side having the pivot side as a pivot.
Is formed, and the upper and lower pivotal support portions 28 and 29 are opened and closed by using the pivotal support portions 28 and 29 as pivotal support points.

In the figure, 33 is a permanent magnet for contacting the door, and 34 is a safety stopper piece for detecting the unrestored position of the internal mechanism.
For example, when paper is jammed in the transport path, the door 25 is opened to remove the paper, and a pair of paper guide members (not shown) forming the front / back reversing unit 21 are operated to open the paper guide member. If the door 25 is closed without being returned to the position, the safety stopper piece 34 comes into contact with the paper guide member and cannot be closed. Therefore, the operator can recognize the non-return of the internal mechanism.

Next, the reinforcing sheet 26 will be described.
The reinforcing sheet 26 is made of a lightweight resin such as polypropylene or polyethylene, which is lightweight and has high rigidity, and constitutes a foam molding plate having a size corresponding to substantially the entire inner surface of the exterior door 25. 26 are set to the four corners and the intermediate portion of the inner surface of the exterior door 25 as fixing portions, and each screw 35 ...
Is integrally screwed and fixed to the exterior door 25.

The reinforcing sheet 26 also includes a permanent magnet 33.
The avoidance window 36 is opened at a position corresponding to the safety stopper piece 34 so that the opening / closing operation of the door is not hindered.

In this case, when the reinforcing sheet 26 is manufactured, a lightweight resin can be reinforced by using a material made of foam resin, so that a lightweight door can be realized. Since it is a resin, for example, it can be manufactured by forming a thin plate and then punching it using a so-called Thomson mold so as to obtain a desired shape. Therefore, it is easy to manufacture as a whole and can be manufactured at low cost.

Further, the reinforcing sheet 26 having rigidity is integrally formed on the substantially entire inner surface of the door 25 including the reinforcing ribs 27 integrally formed on the inner surface of the exterior door 25 so as to be integrally connected. The resin door 15 in which the exterior door 25 and the reinforcing sheet 26 are integrated is obtained. This resin door 15
By integrating the two into a rigid door, it is possible to secure a stable opening / closing posture that does not warp or wobble like a bow even when the door itself receives an external force such as an opening / closing operation force.

Therefore, even if the position of the handle 32 is provided at the upper corner of the free end side where the deformation of the door is easily induced, the resin door 1
Deformation 5 is suppressed because it has rigidity as a whole, and does not deform even when an external force in the opening direction or the closing direction is applied to the upper corner portion of the resin door 15 by the operator during the opening / closing operation, and stable opening / closing is performed. Operation is obtained. Therefore, the handle can be provided at any position such as the upper corner portion or the middle portion, and a door having a high degree of freedom in design can be obtained.

In addition, since it is possible to secure a regular posture in which deformation is restricted, it is possible to realize a feeling of rigidity and an exterior with a sense of luxury associated with this feeling of rigidity, and it is possible to obtain a door suitable for office equipment.
In addition, since the door has a double structure due to the side-by-side arrangement with the reinforcing sheet, the internal drive motor M, the sheet take-in / conveying path 18, the punch hole processing section 20, the front and back reversing section 21, the batch binding section 22,
A soundproofing effect that simultaneously suppresses noise generated from a drive mechanism such as the offset processing unit 23 can be obtained.

Further, since the reinforcing sheet 26 is provided side by side, the degree of rigidity dependence on the reinforcing ribs 27 formed on the inner surface of the door is less than that when only the reinforcing ribs 27 are provided. Even if the height (27) is short, sufficient rigidity can be obtained, and the protruding length of the rib can be shortened to simplify the manufacture of the exterior door 25.

Further, since the exterior door 25 and the reinforcing sheet 26 can be individually manufactured as independent integral parts, they can be easily manufactured, and when the both are fixed, the reinforcing sheet 26 is made to correspond to the external door 25 and screwed. It can be fixed together just by doing.

In particular, the resin door 15 has been found to be deformed in a specific direction with respect to the direction of the force for causing the deformation when the door 15 is opened and closed, and the resin door 15 is reinforced so as to support the deformation in the specific direction. Deformation is regulated by providing it. In this case, since the handle 32 for opening and closing the door is provided at the upper corner of the rectangular door having the vertically long rectangular shape, the deformation with the position of the handle 32 as the point of action occurs in the diagonal direction of the door, and the diagonal line Reinforcement sheet 2 including the direction in the reinforcement area
6 is provided.

As shown in FIG. 5, when the operator holds the handle 32 and opens it, the resin door 15 constructed as described above uses the upper and lower pivotal support portions 28 and 29 as pivotal fulcrums. 1
5 is opened with the position of the handle 32 as the point of action. At this time, the door 15 is prevented from deforming due to the rigidity of the reinforcing sheet 26 on the inner surface acting to regulate the warp, and the door 15 is opened while ensuring a stable posture.

Also, when the door 15 is closed, the upper and lower pivot portions 28 and 29 are similarly used as pivotal fulcrums, and the door 15 is closed with the handle 32 at the operating point. At this time, the door 15 is closed due to the stiffening action of the reinforcing sheet 26 on the inner surface of the door 15 so that the warpage is restricted and the deformation is prevented, and the wobbling is eliminated and a stable posture is maintained.

FIG. 6 shows a resin door 61 of another embodiment. This resin door 61 is different from the resin door 15 described above only in the shape of the reinforcing sheet. explain.

In manufacturing the reinforcing sheet 62, first, the deformation with the position of the handle 63 as the point of action is in the diagonal direction of the door 61, and the X-shaped reinforcing sheet 62 is formed as a reinforcing sheet that supports the diagonal direction. Is provided.

The X-shaped reinforcing sheet 62 may be composed of two straight (long plate) reinforcing sheets 62a and 62b. In this form, at least one reinforcing sheet 62a
If so, the present invention is configured.

As described above, the reinforcing sheet is not limited to the rectangular flat plate shape, but may be formed in an integral shape capable of fixing at least two positions on the diagonal line of the door. For example, in addition to the X-shape, the reinforcing sheet may have an N-shape, a Z-shape, or the like.

As described above, since the resin door is provided with a reinforcing sheet on the inner surface to provide rigidity, a stable posture is ensured that does not warp or wobble even when receiving an opening / closing operation force from the outside. it can. For this reason, in addition to improving the opening and closing performance of the door, it is possible to realize a rigid exterior, reduce the thickness of the resin door and shorten the length of the reinforcing ribs, simplifying the manufacturing of the door itself and lowering the cost. Can be achieved. Furthermore, since the reinforcing sheet can be manufactured using a lightweight material, a lightweight door can be realized, and the handle can be provided at any position, so that the door having a high degree of freedom can be obtained.

In the correspondence between the present invention and the configuration of the above-described embodiment, the office equipment of the present invention corresponds to the sheet post-processing device 11 of the embodiment, and hereinafter the main body is the main body 13 of the apparatus. Correspondingly, the opening surface corresponds to the side surface opening portion 14, and the drive mechanism includes the drive motor M and its associated power transmission mechanism, the sheet take-in / conveying path 18, the punch hole processing unit 20, the front and back reversing unit 21, and the collective. The fixing portion corresponds to the binding portion 22 and the offset processing portion 23, and the fixing portion corresponds to the upper pivot portion 28 and the lower pivot portion 29. However, the present invention can be applied based on the technical idea shown in the claims. However, the present invention is not limited to the configurations of the above-described embodiments.

[0048]

According to the present invention, the resin door can secure a stable posture in which one end portion of the door does not warp or wobble like a bow even when receiving an opening / closing operation force. Reliable opening / closing performance can be obtained even with a large size. In addition, it is possible to realize a high-class exterior with a sense of rigidity. In addition, a soundproof effect that suppresses noise generated from an internal drive mechanism or the like can be obtained.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a sheet post-processing apparatus of the present invention.

FIG. 2 is an external perspective view showing a sheet post-processing device connected to the copying machine of the present invention.

FIG. 3 is a schematic side view showing the internal configuration of the sheet post-processing apparatus of the present invention.

FIG. 4 is a partially exploded perspective view of the exterior door and the reinforcing sheet of the present invention.

FIG. 5 is an external perspective view showing an open state of the resin door of the present invention.

FIG. 6 is a perspective view showing an example of a reinforcing sheet according to another embodiment of the present invention.

FIG. 7 is an external perspective view showing an open state of a conventional large resin door.

FIG. 8 is an explanatory view showing a warped state when opening and closing a conventional large resin door.

[Explanation of symbols]

11 ... Paper post-processing device 13 ... Device body 14 ... Side opening 15, 61 ... Resin door 25 ... Exterior door 26, 62 ... Reinforcing sheet 27 ... Reinforcing rib 28, 29 ... pivotal branch 32, 63 ... Handle

Continued front page    F-term (reference) 2E016 HA09 JA11 JC08 KA05 LA01                       LB05 LC01 MA23 RA01                 2H071 AA19 AA38 AA42 AA53 AA54                 4E360 AB51 BA06 BB17 BC13 EA16                       ED02 EE01 GA12 GA27 GA53                       GB48 GC08

Claims (5)

[Claims] 1. A flat-plate resin door which pivotally supports one side on a rotation fulcrum to open and close an opening surface on the main body side, wherein a reinforcing sheet having rigidity is provided side by side. Resin door. 2. An office equipment having a rectangular flat plate-shaped resin door which covers an opening surface of an equipment body having a drive mechanism for office processing and which is pivotally supported at one side to be freely opened and closed. The above-mentioned resin door is an office machine characterized in that a reinforcing sheet having rigidity is superposed on the substantially entire inner surface of the door including a reinforcing rib integrally formed on the inner surface thereof. 3. The resin according to claim 1, wherein the reinforcing sheet has such a shape that it can be attached by setting two fixing portions at least at four corners or diagonally of the inner surface of the resin door. A door or the office equipment according to claim 2. 4. The resin door according to claim 1, or the office equipment according to claim 2, wherein the reinforcing sheet is formed of a foamed resin material into a shape having rigidity. 5. The resin door according to claim 1, or the office equipment according to claim 2, wherein a handle for opening and closing is provided at an upper corner of a free end side of the rectangular door having a pivotal support as a pivot.