JP2008134364A - Manipulation panel structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manipulation panel structure of an image forming device having good usability in response to a demand of universal design. <P>SOLUTION: The manipulation panel structure of an image forming device includes a manipulation panel 10 whose manipulation part protrudes from a front face of a device body. The structure includes a first manipulation part 11 mainly making display and a second manipulation part 21 mainly providing a manipulation key. The manipulation panel 10 composed to have first and second manipulation planes with prescribed angles θ1, θ2 to a horizontal plane C, respectively. A rotation support point shaft 44 of a first support means 40 for rotatably supporting the manipulation panel 10 in a first direction E along a vertical plane is provided in a more inner side than the center of the first manipulation plane. In addition, a rotation support point shaft 63 of a second support means 60 for rotatably supporting the manipulation panel 10 in a second direction F along a horizontal plane is provided on a left side from the center of the first manipulation face. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an operation panel structure, and more particularly to an operation panel structure installed in an image forming apparatus for forming an image on a sheet by electrophotography.

  In recent years, in various industrial products, attention has been paid to the idea of universal design to make it easy to use not only for healthy people but also for physically handicapped people. In particular, in an image forming apparatus such as a copying machine or a printer, a universal design is supported for an operation panel having an input unit for inputting image forming process contents and a display unit for displaying the input contents and the operation status of the apparatus. It is demanded.

  For example, FIG. 15 shows the positional relationship of the operator with respect to the copying machine main body 500 provided with a fixed operation panel 505. The operation panel 505 protrudes forward from the copying machine main body 500. 15A shows a state where an average male European man is operating, FIG. 15B shows a state where an average European woman is operating, and FIG. 15C shows an average. Fig. 15 (D) shows an operation by an average-height Japanese woman, Fig. 15 (E) shows an operation by a disabled person on a wheelchair. It shows the state.

  As is apparent from FIGS. 15A to 15E, in the fixed operation panel 505, the angle of the operator's arm is different depending on the height or the state of the body, and the usability may be poor. . Further, since the printed paper is discharged horizontally in the H portion of the copying machine main body 500, it must bend to take out the paper, but in that case, the operation panel 505 may interfere with the body. is there. When copying a document having a large area, it is necessary to avoid that the document protruding from the document placement table interferes with the operation panel 505. Further, even when the body collides with the operation panel 505, it is necessary to take measures to reduce the impact on the body.

  In particular, a specialized operator who produces a large number of prints in the company feels fatigued eyes or hips if the body does not match the height of the operation panel 505 and the angle of the operation surface or display surface. Will get tired. Needless to say, for the physically handicapped, mismatching with the operation panel 505 is a greater burden.

  As a universal design support for an operation panel of a copying machine, a configuration has been proposed in which the operation panel can be rotated in the vertical direction as described in Patent Documents 1, 2, and 3.

However, the conventional operation panel does not always sufficiently satisfy the universal design requirement that it is easy to use and easy to see depending on the height of the operator or the wheelchair user. In particular, with this type of operation panel, when the panel is rotated in the vertical or horizontal direction, depending on the arrangement of the respective rotation fulcrums, the operation panel rotates more than necessary and interferes with the operator, the manuscript, and the paper. A malfunction occurs. In addition, it is necessary to set the operation surface at a position that is easy for the operator to see no matter how it is rotated.
JP-A-2005-84086 JP 2005-238729 A JP 2003-246114 A

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an operation panel structure for an image forming apparatus that satisfies the requirements of universal design and is easy to use.

In order to achieve the above object, the present invention provides an operation panel structure for an image forming apparatus, comprising an operation panel whose operation unit protrudes from the front surface of the apparatus body.
It consists of a first operation unit mainly for display and a second operation unit mainly provided with operation keys, and each first and second operation surface has a predetermined different angle with respect to a horizontal plane. A configured control panel;
First support means for rotatably supporting the operation panel in a first direction along a vertical plane;
Second support means for rotatably supporting the operation panel in a second direction along a horizontal plane,
A rotation fulcrum shaft of the first support means is provided on the back side from the center of the first operation surface, and a rotation fulcrum shaft of the second support means is on the left side of the center of the first operation surface. Is provided,
It is characterized by.

  In the operation panel structure according to the present invention, the rotation fulcrum shaft of the first support means for rotatably supporting the operation panel in the first direction along the vertical plane is located behind the center of the first operation surface. Therefore, when the operation panel rotates in the first direction, the back side portion of the operation panel does not unnecessarily move upward, and may interfere with a large document protruding from the document table. Disappear. In addition, the amount of forward projection of the front portion of the operation panel is small, and there is no interference with the operator. Further, since the rotation fulcrum shaft of the second support means for supporting the operation panel so as to be rotatable in the second direction along the horizontal plane is provided on the left side from the center of the first operation surface, the operation panel is greatly increased on the left side. It does not pop out, does not interfere with an operator who normally stands on the left side of the copying machine, and does not sacrifice operability.

  In particular, in the operation panel structure according to the present invention, it is preferable that the rotation fulcrum shaft of the first support means is provided in front of the rotation fulcrum shaft of the second support means. That is, when the first support means is held by the second support means, the operation panel rotates in the second direction while maintaining a predetermined angle in the first direction. Operability is improved. Further, the rotational moment due to the weight of the operation panel can be reduced, which is advantageous for the downward impact resistance due to the key operation.

  The default position of the angle at which the operation panel rotates in the first direction is such that the second operation surface has an angle of about 7 ° with respect to the horizontal plane, and the operation panel is about 20 ° from the default position. It is preferable in terms of visibility that it can be rotated downward by 30 °.

  In addition, the default position of the angle at which the operation panel rotates in the second direction is a position where the row of operation keys arranged on the second operation surface is parallel to the front surface of the apparatus body. It is preferable from the viewpoint of visibility that it can be rotated from the default position to the operator side by about 25 ° to 35 °.

  Embodiments of an operation panel structure according to the present invention will be described below with reference to the accompanying drawings.

(Overall configuration of copier, see Fig. 1)
FIG. 1 shows a case where an operation panel structure according to the present invention is applied to a copying machine 1. The copying machine 1 forms an image on a sheet by a conventionally known electrophotographic method. The copying machine 1 includes a document image reading unit 8 at an upper stage, and the document image read by the unit 8 is formed on the main body 2. Reproduced on the paper by the image unit 3. The sheets are stacked and accommodated in the sheet feeding cassette 4 and fed one by one. After an image is formed by a well-known image forming process, the sheet is ejected to the sheet ejection unit 5 in the direction of arrow A.

  The operation panel 10 is installed on the front side of the copying machine 1 at a position protruding to the front side from the main body 2 toward the right side and upstream of the paper discharge unit 5 in the paper discharge direction (see arrow A). .

(Refer to the operation panel, Fig. 2 to Fig. 5)
As shown in FIGS. 2 to 5, the operation panel 10 includes a first operation unit 11 mainly for display and a second operation unit 21 mainly provided with a numeric keypad 22. Are integrated in a direction orthogonal to the left-right direction (see arrow B) of the copying machine main body 2 and at a predetermined different angle with respect to the horizontal plane C. Specifically, as shown in FIG. 4, the first operation surface has an angle θ1 with respect to the horizontal plane C set to 20 ° to 25 °, and the second operation surface has an angle θ2 with respect to the horizontal plane C of 5 ° to 10 °. Is set to The angle θ3 formed by the first and second operation surfaces is set to 160 ° to 170 °.

  The 2nd operation part 21 is located in the near side of the 1st operation part 11, and the 1st operation part 11 has made a rectangle by plane view. The second operation unit 21 has a substantially half-moon shape in plan view. Then, the front side of the first operation unit 11 and the back side straight part of the second operation unit 21 are coupled to each other with a step 20 (see FIG. 5), and the first operation unit 11 is connected to the second operation unit 11. The operating unit 21 has an angle standing with respect to the horizontal plane C. Further, the width dimensions of the first and second operation parts 11 and 21 are different from each other, and the width dimension of the first operation part 11 is configured to be larger than the width dimension of the second operation part 21.

  A liquid crystal display element 12 is provided on the first operation surface, and the liquid crystal display element 12 is provided with a touch panel for setting the operation mode of the copying machine main body 2 and the image reading unit 8 to set various operation modes. Display. On the first operation surface, a mode memory key 13 and a counter integration display key 14 are provided on the right side of the liquid crystal display element 12. Further, on the front side of the liquid crystal display element 12, operation keys 15 (for example, various operation keys for brightness setting, box memory, facsimile / scan switching, copy switching, and reset) that are not frequently used are provided.

  On the second operation surface, a numeric keypad 22, a print start key 23, a stop key 24, an interrupt key 25, a confirmation copy key 26, and a clear key 27 are provided, and a key 28 such as help is provided along the left edge. It has been. A lighting display unit 31 for displaying a caution state of the copying machine main unit 2 and the image reading unit 8 is provided in a portion having a circular arc shape on the near side of the second operation unit 21. When the copying machine main body 2 and the image reading unit 8 are operating normally, the lighting display unit 31 is displayed in green, for example, to detect the occurrence of out of paper, out of toner, or jammed paper. For example, red is displayed. When the attention state is displayed in this way, the operator confirms the display of the liquid crystal display element 12 provided in the first operation unit 11 and confirms the specific attention state.

  As shown in FIG. 5, which is a cross section of the operation panel 10, the numeric keypad 22 provided on the second operation surface is pressed in the direction indicated by the arrow D. The operation key 15 provided on the first operation surface, which is less frequently used, has an arcuate upper cross section, and has a slightly larger protruding amount than the numeric keypad 22 and is pressed in the same direction as the numeric keypad 22 (see arrow D). Is possible.

  Further, a lighting display element such as an LED for lighting that the operation mode corresponding to the key 15 is selected by operating the key 15 is provided in or near the key top of the operation key 15 that is not frequently used.

  By the way, the operation panel 10 can be rotated in a first direction E (see FIG. 4) along the vertical plane, and can be rotated in a second direction F (see FIG. 2) along the horizontal plane. . Hereinafter, the first support means 40 that supports the operation panel 10 so as to be rotatable in the first direction E and the second support means 60 that rotatably supports the operation panel 10 in the second direction F will be described.

(First and second support means, see FIGS. 6 to 12)
As shown in FIGS. 6 to 9, the first support means 40 inserts the pivot fulcrum shaft 44 into the pipe 43 sandwiched between the fixed brackets 41 and 42, and both ends of the pivot fulcrum shaft 44. The movable side brackets 45 and 46 are attached so as to be rotatable in the first direction E. The operation panel 10 is fixed to the projecting pieces 45a and 46a of the movable brackets 45 and 46 with screws.

  A holding bracket 47 is fixed to the movable brackets 45 and 46, and a lock piece 48 (see FIG. 11) having a lock claw 48a is rotatably attached to the holding bracket 47 with a pin 48b as a fulcrum. One end of the lock piece 48 is connected to the slide piece 49 via a pin 48c. The slide piece 49 is mounted on the holding bracket 47 so as to be slidable in the direction of arrow G by engaging a long hole 49a with the pin 47a. Further, a coil spring 51 is stretched between the slide piece 49 and the protruding piece 50 fixed to the movable side bracket 46, and a restoring force to the back side is applied by the coil spring 51. Further, a handle 52 is fixed to the end of the slide piece 49.

  On the other hand, as shown in FIGS. 6 and 9, three lock holes 41 a, 41 b, 41 c are formed in the fixed bracket 41, and one lock hole 45 b is formed in the movable bracket 45. The lock claw 48a enters one of the three lock holes 41a, 41b, 41c of the fixed side bracket 41, and also enters the lock hole 45b of the movable side bracket 45, so that the movable side brackets 45, 46, that is, the operation is operated. The panel 10 is positioned at three rotation angles.

  In the first support means 40 having the above-described configuration, the default position (see FIG. 7) in the first direction E of the operation panel 10 is a state in which the lock claw 48a has entered the lock hole 41a on the upper stage of the fixed bracket 41. It is. At this time, as shown in FIG. 4, the position of the second operation surface is fixed at an angle of about 7 ° with respect to the horizontal plane C. When the operator pulls the handle 52 forward with the finger (in the direction of arrow G), as shown in FIG. 11, the slide piece 49 is pulled out together with the handle 52, and the lock piece 48 rotates clockwise with the pin 48b as a fulcrum. Rotate in the direction. As a result, the lock claw 48a is disengaged from the lock holes 41a, 41b, and 41c, and the operation panel 10 is freely rotatable with respect to the first direction E.

  When the handle 52 is lowered in the unlocked state, the operation panel 10 rotates downward about the rotation fulcrum shaft 44, and when the lock claw 48a is engaged with the lock hole 45b through the middle lock hole 41b, the operation panel 10 is operated. The panel 10 is locked in a state where it is rotated to the middle position. Further, when the lock claw 48a is engaged with the lock hole 45b through the lower lock hole 41c, the operation panel 10 is locked in a state of being rotated downward (see FIG. 9). The angle at which the operation panel 10 is rotated downward and locked is an angle that is rotated about 20 ° to 30 ° downward from the default position.

  In the locking operation, when the pulling force on the handle 52 is released, the slide piece 49 slides back by the spring force of the coil spring 51, and the lock piece 48 rotates counterclockwise in FIG. 11 with the pin 48b as a fulcrum. The lock claw 48a is engaged with the lock hole 45b through any one of the lock holes 41a, 41b, 41c.

  As shown in FIGS. 6 and 9, a winding spring 53 is wound around the outer peripheral surface of the pipe 43, and one end of the winding spring 53 is locked to the fixed side bracket 42, and the other end is Locked to the movable bracket 46. The spring force of the winding spring 53 serves as a resistance force when the operation panel 10 is rotated downward to prevent the operation panel 10 from falling downward when the lock is released. Further, the winding spring 53 reduces the resistance when the operation panel 10 is rotated upward. That is, the winding spring 53 functions as a balancer that supports the weight of the operation panel 10 in a direction against gravity.

  Next, the 2nd support means 60 which supports the operation panel 10 so that rotation in the 2nd direction F along the horizontal surface C is demonstrated.

  As shown in FIG. 6, the bracket 42 is rotated on the horizontal plane with the rotation fulcrum shaft 63 as a fulcrum by inserting the rotation fulcrum shaft 63 attached in the vertical direction to the horizontal holding brackets 61 and 62 into the hole 42 a. The horizontal holding brackets 61 and 62 are fixed to the front surface of the image reading unit 8 via a fixing bracket 64.

  Further, the washers 65 and 65 interposed between the brackets 41 and 42 and the horizontal holding brackets 61 and 62 also function as a brake material that imparts a rotational resistance against the rotation in the second direction F. The washer 65 is provided with a sliding agent such as fluorine or ultra-high density polyethylene on the surface in contact with the fixed brackets 41 and 42. The surface in contact with the horizontal holding brackets 61 and 62 is not particularly treated or blasted. The processing which has the brake effect etc. is given.

  In the second support means 60 having the above configuration, when the operator presses the operation panel 10 in the horizontal direction by hand, the operation panel 10 is rotated in the left-right direction using the rotation fulcrum shaft 63 as a fulcrum (see FIG. 12). When the washer 65 is used, an appropriate rotational resistance acts. Further, the amount of rotational resistance by the washer 65 can be adjusted by changing the pressure contact force between the brackets 41, 61 and 42, 62. Specifically, the turning resistance force can be adjusted by changing the tightening force of the nut 66 with respect to the turning fulcrum shaft 63.

  With respect to the second direction F, the default position of the operation panel 10 is a position where a row such as the numeric keypad 22 arranged on the second operation surface is parallel to the front surface of the copier body 2. The operation panel 10 can be rotated from the default position by about 25 ° to 35 ° on the operator side, that is, on the left side as shown in FIG. 12, and stops at an arbitrary rotation angle.

(Operational effects by support means)
According to the operation panel structure described above, the operation panel 10 can be rotated along the vertical plane and the horizontal plane by the first and second support means 40, 60, so that the height and posture of the operator can be adjusted. Alternatively, the first and second operation surfaces can be adjusted to arbitrary angles according to the use of the wheelchair, and the universal design requirement can be met.

  In particular, the first direction E is provided with locking means for holding the operation panel 10 at a plurality of (three locations) predetermined angles, so that the operator can set the predetermined angle without hesitation and is violent. Even when a key operation is performed, it is possible to sufficiently withstand the pressing force in the direction of gravity, and there is no possibility that the support means 40 will rattle or loosen. In addition, by applying an appropriate turning resistance force to the second direction F with a washer 65 (brake material), it is possible to operate the turning in the horizontal direction, which is difficult for humans to operate. become.

  The first support means 40 is attached to the second support means 60, and the rotation operation in the first direction E operates independently of the rotation operation in the second direction F. The operation panel 10 can be rotated in the second direction F while being locked in the first direction E, and the second direction can be used even when the lock in the first direction E is released. F can be rotated. Moreover, it can be simultaneously rotated in the first and second directions E and F in the unlocked state. Thus, the operator can freely adjust the direction of the operation panel 10.

  Since the coil spring 53 functions as a balancer that supports the weight of the operation panel 10 in a direction against gravity, an operation when the operation panel 10 is rotated upward is facilitated. In the present invention, this type of balancer is not always necessary and may be omitted. In addition, instead of the balancer, like the second support means 60, an appropriate rotational resistance force may be applied to the washer 55 (see FIG. 6) to function as a brake material. Moreover, when the locking means is provided, the brake material in the first direction E is not necessarily required in the present invention and may be omitted.

  Furthermore, in the present invention, the locking means is not necessarily required and may be omitted. However, when the lock means is omitted, a mechanism is required that can provide a brake material by the washer 55 or the like on the support means 40 and stop the rotation angle of the operation panel 10 at an arbitrary position.

(Arrangement of rotating fulcrum shaft)
By the way, the rotation fulcrum shaft 44 of the first support means 40 is provided below the first operation portion 11 and behind the center J of the first operation surface (see FIG. 2). . The rotation fulcrum shaft 63 of the second support means 60 is provided below the first operation unit 11 and on the left side from the center J of the first operation surface. Specifically, as an example of a preferable arrangement, as shown in FIGS. 2 and 4, the rotation fulcrum shaft 44 is provided at a substantially intermediate position of a distance K1 between the center J of the first operation surface and the back side. Yes. Further, the rotation fulcrum shaft 63 is provided at a position about 1/3 right of the interval K2 between the center J and the left side of the first operation surface.

  Thus, since the rotation fulcrum shaft 44 of the first support means 40 is provided on the back side from the center J of the first operation surface, when the operation panel 10 rotates in the first direction E, the operation panel The back side portion of 10 does not unnecessarily move upward, and does not interfere with a large document protruding from the document table. In addition, the amount of forward projection of the front portion of the operation panel 10 is small, so that it does not interfere with the operator.

  In addition, since the rotation fulcrum shaft 63 of the second support means 60 is provided on the left side of the center J of the first operation surface, the operation panel 10 does not protrude greatly to the left side, and the normal operation with respect to the copying machine main body 2 is performed. There is no interference with the operator standing on the left side, and the operability is not sacrificed.

  Further, since the rotation fulcrum shaft 44 of the first support means 40 is provided in front of the rotation fulcrum shaft 63 of the second support means 60, in other words, the first support means 40 is the first support means 40. Since the operation panel 10 is rotated in the second direction F while maintaining a predetermined angle in the first direction E, the operability is improved. . Further, the rotational moment due to the weight of the operation panel 10 can be reduced, which is advantageous for the downward impact resistance due to the key operation.

(Operation panel configuration, shape effects)
In the operation panel 10, the operation surfaces of the first operation unit 11 mainly for display and the second operation unit 21 mainly provided with a numeric keypad 22 and the like are orthogonal to the horizontal direction of the copier body 2. Since they are integrated in a direction and with a predetermined different angle with respect to the horizontal plane C, visibility is improved and key operation is facilitated. Moreover, since the first operation unit 11 is rectangular in plan view, the liquid crystal display element 12 including various display contents can be simply arranged. In addition, since the second operation unit 21 has a half-moon shape in plan view, the amount of projection from the copying machine main body 2 is minimized, the appearance is compact, and there is no sense of incongruity. No interference. Moreover, it is easy to access from any direction, and even a low vision person can easily recognize that it is the operation panel 10.

  Further, since the front surface portion of the second operation unit 21 has an arc shape in plan view, when the posture of the operation panel 10 is changed by rotating in the direction along the horizontal plane C, an appropriate resistance is given. This improves operability. In addition, since the front surface portion of the second operation unit 21 has an arc shape, the impact of interference with the operator is reduced, and access from any direction is facilitated.

  Furthermore, the front surface portion and the side surface portion of the second operation portion 21 have a substantially arc shape 39 (see FIG. 4) corresponding to the thickness. The operator may bend when taking out the ejected paper. In such a case, even if the operator's head or the like comes into contact with the operation panel 10, the corner of the second operation unit 21 is substantially omitted. Due to the arc shape 39, the impact on the head is mitigated.

  Further, since the operation key 15 that is used less frequently is provided on the front side of the liquid crystal display element 12 on the first operation surface, it is different from the second operation surface provided with the numeric keypad 22 that is used frequently. It can be operated separately, improving operability. Further, the operation key 15 having a low use frequency has an arcuate upper section and has a larger protrusion than the numeric keypad 22 provided on the second operation surface. Therefore, the operation key 15 provided on the first operation surface is 2 can be pressed at substantially the same angle as the numeric keypad 22 provided on the operation surface 2 and the operability is improved.

  In addition, since the lighting display element is provided in the key top of the operation key 15 with low use frequency or in the vicinity of the operation key, the selection state of the operation key 15 with low use frequency can be easily confirmed.

(Modification of locking means, see FIGS. 13 and 14)
The lock means is configured such that the handle 52 is disposed in front of the second operation unit 21 and is unlocked by being pulled toward the front side by the operator. Thus, the operation panel 10 can be rotated by simultaneously grasping the second operation unit 21 and the handle 52, and natural operability can be achieved. However, the handle 52 may be disposed on the side of the second operation unit 21 as shown in FIGS. 13 and 14. 13 and 14, the same members as those in FIGS. 10 to 12 and members having the same functions are denoted by the same reference numerals.

  In this modification, by moving the handle 52 in the direction of the arrow G ′, the slide piece 49 also moves in the direction of the arrow G ′, the pin 48c moves in the elongated hole 48d, and the lock piece 48 moves the pin 48b. It rotates clockwise as a fulcrum, and the engagement of the lock pawl 48a with the lock holes 41a, 41b, 41c (see FIG. 9) is released.

(Other examples)
The operation panel structure according to the present invention is not limited to the above-described embodiment, and can be variously modified within the scope of the gist thereof.

  In particular, the detailed structure and shape of the first and second support means are arbitrary. The configuration of the first and second operation surfaces of the operation panel is also arbitrary. The operation panel structure according to the present invention can be provided in an image forming apparatus such as a copying machine, a printer, a facsimile, or a complex machine thereof.

1 is an external perspective view showing a copying machine including an operation panel structure according to the present invention. It is a top view which shows an operation panel. It is a front view which shows an operation panel. It is a side view which shows an operation panel. It is an expanded sectional view showing an operation panel. It is a disassembled perspective view which shows the 1st and 2nd support means. It is a side view which shows the 1st and 2nd support means (default position). It is a side view which shows the 1st and 2nd support means (rotation position to a 1st direction). It is sectional drawing which shows the 1st support means lock position. It is a top view which shows the 1st and 2nd support means. It is a top view which shows the time of lock release in a 1st support means. It is a top view which shows the rotation state of a 2nd support means. It is a top view which shows the modification of a locking means. It is a top view which shows the time of lock release in the modification of FIG. It is explanatory drawing which shows the access state of the operator with respect to an operation panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Copy machine 2 ... Copy machine main-body part 10 ... Operation panel 11 ... 1st operation part 12 ... Liquid crystal display element 15 ... Operation key 21 ... 2nd operation part 22-28 ... Operation key 40 ... 1st support means 44 ... Rotation fulcrum shaft 60 ... Second support means 63 ... Rotation fulcrum shaft E ... First direction F ... Second direction

Claims (4)

An operation panel structure of an image forming apparatus having an operation panel whose operation unit protrudes from the front surface of the apparatus body,
It consists of a first operation unit mainly for display and a second operation unit mainly provided with operation keys, and each first and second operation surface has a predetermined different angle with respect to a horizontal plane. A configured control panel;
First support means for rotatably supporting the operation panel in a first direction along a vertical plane;
Second support means for rotatably supporting the operation panel in a second direction along a horizontal plane,
A rotation fulcrum shaft of the first support means is provided on the back side from the center of the first operation surface, and a rotation fulcrum shaft of the second support means is on the left side of the center of the first operation surface. Is provided,
An operation panel structure characterized by the above.   2. The operation panel structure according to claim 1, wherein the rotation fulcrum shaft of the first support means is provided in front of the rotation fulcrum shaft of the second support means. The default position of the angle at which the operation panel rotates in the first direction is such that the second operation surface has an angle of about 7 ° with respect to the horizontal plane,
3. The operation panel structure according to claim 1, wherein the operation panel is rotatable about 20 ° to 30 ° downward from the default position. 4. The default position of the angle at which the operation panel rotates in the second direction is a position where a row of operation keys arranged on the second operation surface is parallel to the front surface of the apparatus body,
The operation panel structure according to any one of claims 1 to 3, wherein the operation panel is rotatable from the default position to an operator side of about 25 ° to 35 °.

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