JP4685185B2 - Compound equipment - Google Patents

Description

  The present invention relates to a composite apparatus.

  2. Description of the Related Art Conventionally, as a composite apparatus having a function of forming an image such as a printer, a copying machine, and a facsimile machine, and a function of reading an image such as a scanner, a scanner section is disposed on a printer section, for example. A composite device is provided. In this type of composite apparatus, the scanner unit is swingably disposed with respect to the printer unit, and the scanner unit is rotated when performing maintenance or the like of the printer unit or the scanner unit (for example, patents). Reference 1).

JP 2005-53648 A

  However, in the conventional composite apparatus, a cover member is provided in the scanner unit to press the document against the reading unit. However, when the scanner unit is rotated with respect to the printer unit, May fall. Therefore, it is necessary to set the original again after the maintenance is completed, and the operability of the composite apparatus is low.

  An object of the present invention is to provide a composite apparatus that can solve the problems of the conventional composite apparatus and improve the operability.

  For this purpose, in the composite apparatus of the present invention, the first image processing unit is disposed on the first image processing unit so as to be swingable with respect to the first image processing unit. And a second image processing unit including a lid that is swingably disposed with respect to the main body.

  And the to-be-latched part is formed in the said cover body.

  A restricting member is swingably disposed on the main body.

The restricting member is formed at an end facing the locked portion, and is selectively locked with the locked portion by the action of gravity as the second image processing unit rotates. The locking part is provided.
Further, the locking portion is not locked with the locked portion in a state where the second image processing portion is closed with respect to the first image processing portion, and the lid body rotates with respect to the main body portion. And when the second image processing unit is rotated in a state where the lid is closed with respect to the main body, and without being completely closed with respect to the main body, When the second image processing unit is rotated in a state of being opposed to each other with a gap, the second image processing unit is locked with different portions of the locked portion, and the lid body is rotated with respect to the main body. regulate.

  According to the present invention, in the composite device, the first image processing unit and the first image processing unit are disposed on the first image processing unit so as to be swingable with respect to the first image processing unit. And a second image processing unit including a lid that is swingably disposed with respect to the main body.

  And the to-be-latched part is formed in the said cover body.

  A restricting member is swingably disposed on the main body.

The restricting member is formed at an end facing the locked portion, and is selectively locked with the locked portion by the action of gravity as the second image processing unit rotates. The locking part is provided.
Further, the locking portion is not locked with the locked portion in a state where the second image processing portion is closed with respect to the first image processing portion, and the lid body rotates with respect to the main body portion. And when the second image processing unit is rotated in a state where the lid is closed with respect to the main body, and without being completely closed with respect to the main body, When the second image processing unit is rotated in a state of being opposed to each other with a gap, the second image processing unit is locked with different portions of the locked portion, and the lid body is rotated with respect to the main body. regulate.

  In this case, when the second image processing unit is rotated, the locked portion and the locking portion are locked, so that the document is set on the second image processing unit and the lid is closed. When the second image processing unit is rotated and opened as it is, the rotation of the lid can be restricted, and the lid is not opened.

  Therefore, it is possible not only to prevent the lid from being damaged, but also to prevent the document from falling.

It is a fragmentary sectional view which shows the principal part of the compound apparatus in the form of the 1st technique used as the premise of description of this invention. It is a perspective view of the compound apparatus in the form of the 1st technique used as the premise of explanation of the present invention. It is sectional drawing of the compound apparatus in the form of the 1st technique used as the premise of description of this invention. It is a rear view of the compound apparatus in the form of the 1st technique used as the premise of explanation of the present invention. It is a front view of the compound apparatus in the form of the 1st technique used as the premise of explanation of the present invention. It is XX sectional drawing of FIG. It is a top view of the compound apparatus in the form of the 1st technique used as the premise of explanation of the present invention. It is a perspective view of the stopper in the form of the 1st technique used as the premise of explanation of the present invention. It is a 1st figure which shows operation | movement of the compound apparatus in the form of the 1st technique used as the premise of description of this invention. It is an enlarged view which shows operation | movement of the stopper in the form of the 1st technique used as the premise of description of this invention. It is a 2nd figure which shows operation | movement of the compound apparatus in the form of the 1st technique used as the premise of description of this invention. It is a figure which shows the locus | trajectory of the stopper in the form of the 1st technique used as the premise of description of this invention. It is a fragmentary sectional view which shows the principal part of the composite apparatus in the form of the 2nd technique used as the premise of description of this invention. It is a 1st figure which shows operation | movement of the compound apparatus in the form of the 2nd technique used as the premise of description of this invention. It is a 2nd figure which shows operation | movement of the compound apparatus in the form of the 2nd technique used as the premise of description of this invention. It is a front view of the compound apparatus in an embodiment of the invention. It is a 1st figure which shows operation | movement of the compound apparatus in embodiment of this invention. It is a 2nd figure which shows operation | movement of the compound apparatus in embodiment of this invention. It is a 3rd figure which shows operation | movement of the compound apparatus in embodiment of this invention. It is a 1st figure which shows operation | movement of the position fixing lever in embodiment of this invention. It is a 4th figure which shows operation | movement of the compound apparatus in embodiment of this invention. It is a 2nd figure which shows operation | movement of the position fixing lever in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this case, a composite apparatus having a function of forming an image such as a printer and a function of reading an image such as a scanner will be described.

  FIG. 1 is a partial cross-sectional view showing a main part of a composite apparatus according to a first technical form as a premise of the description of the present invention, and FIG. 2 shows a composite apparatus according to the first technical form as a premise of the description of the present invention. FIG. 3 is a cross-sectional view of the composite apparatus according to the first technical form which is the premise for explaining the present invention, and FIG. 4 is a rear view of the composite apparatus according to the first technical form which is the premise for explaining the present invention. FIG. 5 is a front view of the composite apparatus according to the first technical form which is a premise for explaining the present invention, FIG. 6 is a sectional view taken along line XX of FIG. 5, and FIG. 7 is a first premise for explaining the present invention. FIG. 8 is a perspective view of a stopper in the first technical form which is a premise of the description of the present invention.

  In the figure, reference numeral 11 denotes a composite apparatus. The composite apparatus 11 serves as a first image processing section having a function of forming an image and a printer section 12 as an image forming section, and the printer section 12. The printer unit 12 is provided with a scanner unit 13 as a second image processing unit which is disposed so as to be swingable with respect to the printer unit 12 and has a function of reading an image, and as an image reading unit. Includes a stay 12 a as a connecting member for mounting the scanner unit 13 on the printer unit 12.

  The printer unit 12 includes a mechanism unit 14 for forming an image using an electrophotographic system, and the mechanism unit 14 is provided on a sheet (not shown) as an image processing medium on each color of yellow, magenta, cyan, and black. Form an image and record it. The mechanism unit 14 is configured to form an image by an LED tandem color method, but can form an image by a method such as a laser method, an ink jet method, or a dot impact method.

  The mechanism section 14 includes a paper cassette 16 for storing paper, a printing process cartridge 20 as an image forming unit for each color, a print head (not shown) as an exposure device, a transfer roller 21 as a transfer member, and fixing as a fixing device. Each of the printing process cartridges 20 is a photosensitive drum 17 as an image carrier, a charging roller 18 as a charging device, and a developer carrier. (Not shown), a toner cartridge 19 as a developer container, and the like.

  The charging roller 18 charges the surface of the photosensitive drum 17, and the print head irradiates the surface of the photosensitive drum 17 with LED light, thereby forming an electrostatic latent image on the surface of the photosensitive drum 17. The developing roller attaches toner as a developer supplied from the toner cartridge 19 to the photosensitive drum 17 and develops the electrostatic latent image to form a toner image as a developer image.

  On the other hand, the paper is fed out from the paper cassette 16 and conveyed, and is sent to a transfer portion between each photosensitive drum 17 and the transfer roller 21, and the transfer roller 21 is transferred to the photosensitive drum 17 in each transfer portion. The formed color toner images are sequentially transferred onto a sheet to form a color toner image. Subsequently, the paper is sent to the fixing device 22 where the color toner image is fixed on the paper, and a color image is formed. Next, the paper is discharged out of the printer unit 12 by the discharge unit 23.

  The scanner unit 13 includes a flat bed 25 serving as a main body, a document cover 26 serving as a lid that is swingably disposed with respect to the flat bed 25, and the like. An ADF (automatic document feeder) 33 that can automatically and sequentially supply a document as an image processing medium is provided. The flat bed 25 includes a carriage portion 27 that can be reciprocated in the sub-scanning line direction, and a document reading surface 28 for placing a document. The carriage portion 27 is placed on the document reading surface 28. The image sensor unit 29 that reads the image on the scanning line of the original is converted. The image sensor unit 29 converts the read image data, that is, the image data into an electrical signal, and sends it to the printer unit 12. Then, the printer unit 12 can form an image based on the image data.

  The stay 12 a includes a shaft 31 that forms a fulcrum for swingably supporting the scanner unit 13. The flat bed 25 is disposed in parallel to the shaft 31, and the document cover 26 is the same as the scanner unit 13. A shaft 32 constituting a fulcrum that is swayably supported in the direction is provided.

  Reference numeral 24 denotes a stopper that is disposed on the outer periphery of the shaft 32 and serves as a restricting member for restricting the rotation of the document cover 26. A bracket Br1 is formed so as to protrude rearward from the rear end surface Sa of the scanner unit 13, and a shaft 36 constituting a fulcrum is disposed on the bracket Br1 in parallel with the shafts 31 and 32. 36, the document cover 26 is rotatably supported in the same direction.

  The stopper 24 extends obliquely downward from the top wall 24a, side walls 24b, 24c extending downward from both ends of the top wall 24a, and the rear edge of the top wall 24a, and connects the rear edges of the side walls 24b, 24c. A wall 24d is provided. Each of the side walls 24b and 24c includes a first edge e1 extending vertically downward from the upper end, a second edge e2 extending vertically downward slightly slightly from the lower end of the first edge e1, A third edge e3 extending linearly diagonally rearward from the lower end of the second edge e2 and a fourth edge e4 extending arcuately curved obliquely rearward from the lower end of the third edge e3. Further, a contact portion 41 is formed at the front end of the top wall 24a, and a guided portion 42 is formed at the lower end of the rear wall 24d.

  The stopper 24 takes the first state when the document cover 26 is rotated while the scanner unit 13 is closed, slides with the document cover 26, and moves against the scanner unit 13. It is relatively rotated. For this purpose, the first edge e1 and the rear end surface Sb of the document cover 26 are brought into contact with each other. Further, below the first edge e1, the second edge e2 extends slightly rearward (left side in FIG. 1) downward from the lower end of the first edge e1, so the second edge e2 And a rear end face Sa, a gap I is formed. For example, the gap I is formed even when the rear end surface Sa protrudes rearward (left side in FIG. 1) from the rear end surface Sb due to an attachment error between the document cover 26 and the flat bed 25, variation in component dimensions, or the like. The abutting portion 41 and the first edge e1 which are the upper end surfaces of the stopper 24 and the rear end surface Sb can be reliably abutted.

  The stopper 24 takes the second state when the scanner unit 13 and the document cover 26 are rotated and opened, and is rotated integrally with the scanner unit 13. A torsion spring 40 as an urging member is disposed so that the first edge e1 is always in contact with the rear end surface Sb when the scanner unit 13 and the document cover 26 are rotated. Attached to. The torsion spring 40 includes first and second arms am1 and am2. The first arm am1 is locked to the rear wall 24d and the second arm is locked to the bracket Br1. Energize in the turning direction.

  In the embodiment of the present technology, since the document cover 26 includes the ADF 33, the gravity center position B of the document cover 26 is displaced from the center toward the ADF 33 side. 6 and 7, the stopper 24 is disposed in the axial direction of the shaft 32 at a position displaced from the center toward the ADF 33 in the axial direction of the shaft 32 so as to face the rear end surface Sa. The That is, since the stopper 24 is not disposed on the front end surface 13d and the side surfaces 13b and 13c of the scanner unit 13, the document reading surface 28 or the flat bed 25 that protrudes from the front end surface 13d or the side surfaces 13b and 13c of the scanner unit 13. Even if a larger original is set, the original is not damaged.

  Incidentally, as shown in FIG. 2, the stay 12a has an “L” shape and is formed with a rear end portion 12b protruding upward, and the stopper 24 of the rear end portion 12b. The support portion 43 is formed so as to project upward, and the support portion 43 functions as a guide portion that guides the guided portion 42 and presses the stopper 24, and the stopper 24 pushes the shaft 36. It functions as a presser part that prevents rotation to the center. For this purpose, a support surface 38 as a first guide surface made of a convex surface for guiding the guided portion 42 and the fourth edge portion e4 is formed at the rear end of the support portion 43. The surface 38 is formed in an arc shape corresponding to the shape of the circle S. The circle S is set around the shaft 31.

  The stopper 24 and the support portion 43 constitute a rotation restricting portion.

  When the scanner unit 13 is rotated, the stopper 24 is integrally rotated, and the guided portion 42 and the fourth edge portion e4 slide along the support surface 38 and move. Therefore, the fourth edge e4 is formed in an arc shape corresponding to the shape of the circle S. Note that, on the upper surface of the support portion 43, a facing surface 39 is formed as a second guide surface made of a concave surface, and the facing surface 39 is formed in an arc shape.

  Thus, as the scanner unit 13 is rotated, the guided portion 42 slides and moves along the support surface 38, so that the stopper 24 does not rotate. Therefore, when the scanner unit 13 is rotated, the document cover 26 is not rotated and can be prevented from being opened.

  Further, as shown in FIG. 1, the guided portion 42 and the support portion 43 with the scanner portion 13 in the closed position with respect to the printer portion 12 and the document cover 26 in the closed position with respect to the scanner portion 13. A gap CL1 of 1.0 [mm] to 1.5 [mm] is formed.

  Next, the operation of the composite apparatus 11 having the above configuration will be described.

  FIG. 9 is a first diagram showing the operation of the composite apparatus according to the first technical form as a premise of the description of the present invention, and FIG. 10 is the operation of the stopper according to the first technical form as the premise of the description of the present invention. FIG. 11 is a second diagram showing the operation of the composite apparatus according to the first technical form which is a premise of the description of the present invention, and FIG. 12 is a diagram of the first technique which is the premise of the description of the present invention. It is a figure which shows the locus | trajectory of the stopper in a form.

  When the document cover 26 is rotated around the shaft 32 and opened to set or replace the original on the flat bed 25, the stopper 24 is pushed by the document cover 26, and the first cover 9 and the rear end surface Sb of the document cover 26 are slid in the counterclockwise direction in FIG. 9 about the shaft 36. Along with this, the guided portion 42 faces the facing surface 39 while being formed with the gap CL1, and is rotated along a locus indicated by a two-dot chain line. When the third edge e3 and the rear end surface Sa of the scanner unit 13 come into contact with each other, further rotation of the document cover 26 is restricted. The rear end surface Sa functions as a restricting portion that restricts the rotation of the document cover 26.

By the way, as shown in FIG. 10, the stopper 24 is represented by an initial position represented by a two-dot chain line when the document cover 26 is closed and a solid line when the document cover 26 is fully opened. The open position is taken. The angle formed by the first edge e1 and the third edge e3 in the stopper 24 is θ, and the third edge e3 and the rear end surface Sa when the stopper 24 is placed at the initial position are formed. If the angle is C, the angle C is
C = 180−θ [°]
become. Further, assuming that the inclination of the document cover 26 when it is fully opened, that is, the angle formed between the lower surface of the document cover 26 and the original reading surface 28 is E, the first when the stopper 24 is placed in the open position. An angle formed by the edge e1 and the rear end surface Sa is E.

  In the embodiment of the present technology, the angle θ is set so that the third edge e3 and the rear end surface Sa come into surface contact when the document cover 26 is opened to the maximum. Therefore, the angle C and the angle E are made equal.

  In the embodiment of the present technology, for example, the angle θ is set to 115 [°], and the angles C and E are set to 65 [°]. Therefore, the document cover 26 can be opened at an arbitrary angle within a range of 0 [°] and 65 [°] or less.

  The angle C can be made larger than the angle E. In this case, when the document cover 26 is opened to the maximum, the ridge line portion at the boundary between the second and third edge portions e2 and e3 and the rear end surface Sa are in line contact.

  By the way, when the maintenance of the printer unit 12 or the scanner unit 13 is performed, the scanner unit 13 is rotated about the shaft 31 and opened.

  At this time, the stopper 24 is rotated integrally with the scanner unit 13, and the guided portion 42 and the fourth edge portion e4 are brought into contact with the support surface 38 outside the support portion 43, thereby supporting the support surface. 38. Therefore, since the stopper 24 is restricted from rotating about the shaft 36, the document cover 26 is rotated and opened with respect to the scanner unit 13 while the scanner unit 13 is rotated and opened. There is nothing.

  In this case, the turning locus of the stopper 24 when the scanner unit 13 is opened is shown in FIG. When the scanner unit 13 is rotated by 10 °, the guided portion 42 starts to contact the support surface 38 and prevents the document cover 26 from being opened (note that the rotation of the scanner unit 13 is 10 °). If it is less, the document cover 26 is not opened by gravity.) Then, when the scanner unit 13 is further opened, the guided portion 42 and the fourth edge portion e4 come into contact with the support surface 38 and are slid and moved along the circle S. If the inclination of the scanner unit 13 when the scanner unit 13 is fully opened (the angle formed between the lower surface of the scanner unit 13 and the stay 12a) is F, the stopper 24 is rotated by an angle F. In the form of the present technology, the angle F is set to 65 [°]. When the scanner unit 13 is fully opened, the rotation is restricted by a stopper (not shown).

In FIG. 12, Q is a circle representing the locus of the guided portion 42 when the scanner unit 13 is rotated. If the radius of the circle S is rs and the radius of the circle Q is rq,
rq> rs
To be. In the embodiment of the present technology, the radius rq is set to 22.6 [mm], and the radius rs is set to 12.4 [mm].

  As described above, in the embodiment of the present technology, when the scanner unit 13 is rotated, the stopper 24 is rotated along with the rotation of the scanner unit 13 and restricts the rotation of the document cover 26. The cover 26 does not open. Therefore, not only can the document cover 26 be prevented from being damaged, but also the document is not dropped.

  Further, since the stopper 24 restricts the rotation of the document cover 26 as the scanner unit 13 rotates, it is not necessary to manually operate the stopper 24 and the operability of the composite apparatus 11 can be improved.

  Next, a description will be given of a second technical form which is a premise for explaining the present invention. In addition, about the thing which has the same structure as the form of 1st technique, the description is abbreviate | omitted by providing the same code | symbol, and the effect of the form of this technique is used about the effect of the invention by having the same structure. .

  FIG. 13 is a partial cross-sectional view showing the main part of the composite apparatus in the second technical form which is the premise for explaining the present invention.

  In the figure, reference numeral 51 denotes a stopper as a regulating member that is disposed behind the scanner unit 13 as the second image processing unit and as the image reading unit and regulates the rotation of the document cover 26. The stopper 51 is supported by the shaft 36 so as to be swingable in the same direction as the document cover 26.

  The stopper 51 is a top wall 51a, and side walls 51b and 51c extending downward from both ends of the top wall 51a (the side wall 51b is on the front side of the figure like the side wall 24b of FIG. 8, and is shown in FIG. And a rear wall 51d extending obliquely downward from the rear edge of the top wall 51a and connecting the rear edges of the side walls 51b and 51c. Each of the side walls 51b and 51c includes a first edge e1 extending vertically downward from the upper end, a second edge e2 extending vertically downward slightly slightly from the lower end of the first edge e1, A third edge e3 extending linearly diagonally rearward from the lower end of the second edge e2 and a fourth edge e4 extending arcuately curved obliquely rearward from the lower end of the third edge e3. Further, a contact portion 52 is formed at the front end of the top wall 51a, and a guided portion 53 is formed at the lower end of the rear wall 51d. Further, a recess 55 that opens outward is formed in the vicinity of the lower end of the rear wall 51d, and an edge 54 is formed by the recess 55. The guided portion 53 and the edge portion 54 are disposed on the same circle R around the shaft 36.

  When the scanner unit 13 is rotated, the stopper 51 is integrally rotated, and the guided portion 53 and the fourth edge portion e4 are along the support surface 38 as the first guide surface. Slide to move. For this purpose, the support surface 38 and the fourth edge e4 are formed in an arc shape corresponding to the shape of the circle S (FIG. 1). Note that, on the upper surface of the support portion 43, a facing surface 39 is formed as a second guide surface made of a concave surface, and the facing surface 39 is formed in an arc shape. In this case, the circumferential length of the facing surface 39 is shorter than that of the first technique so that the support portion 43 can be accommodated in the recess 55. Further, the facing surface 39 has a center common to the circle R and is concentrically formed, and an annular gap CL2 is formed between the opposite surface 39 and the circle R.

  In this case, as the scanner unit 13 is rotated, the guided portion 53 slides and moves along the support surface 38, so that the stopper 51 does not rotate. Therefore, when the scanner unit 13 is rotated, the document cover 26 can be prevented from rotating and being opened.

  Further, as shown in the figure, the guided portion 53, the support portion 43, the scanner portion 13 with respect to the printer portion 12, and the document cover 26 with respect to the scanner portion 13 are in the closed position. In the meantime, a gap CL1 (FIG. 1) of 1.0 [mm] to 1.5 [mm] is formed.

  Next, the operation of the composite apparatus 11 having the above configuration will be described.

  FIG. 14 is a first diagram showing the operation of the composite apparatus in the second technical form which is the premise of the description of the present invention, and FIG. 15 is the diagram of the composite apparatus in the second technical form which is the premise of the description of the present invention. It is a 2nd figure which shows operation | movement.

  In FIG. 14, a thick original 61, which is generally called a book original, as an image processing medium is set on the flat bed 25 of the scanner unit 13 as a second image processing unit and an image reading unit. A state in which the document cover 26 is closed is shown. When the document 61 is set on the flat bed 25, the document cover 26 cannot be completely closed. At this time, if the angle formed by the lower surface of the document cover 26 and the document reading surface 28 is G, The stopper 51 rotates about the shaft 36, and the angle formed by the first edge e1 and the rear end surface Sa is also G.

  As the stopper 51 rotates, the guided portion 53 moves on a circle R (FIG. 13) and is placed at a position on the inner side (on the scanner portion 13 side) than the support portion 43.

  Next, when the document 61 is set on the flat bed 25 of the scanner unit 13 and the document cover 26 is closed, the scanner unit 13 is rotated and opened, as shown in FIG. The support part 43 as a guide part and as a pressing part is caused to enter, and the inner peripheral surface of the concave part 55 is brought into contact with the support surface 38. Accordingly, further rotation of the stopper 51 is restricted, and the document cover 26 can be prevented from further rotating and being opened.

  In the embodiment of the present technology, only one recess 55 is formed, but two or more can be formed. In that case, the rotation of the stopper 51 can be prevented at a plurality of locations. Therefore, even if the thickness of the document 61 is different, the scanner unit 13 can be rotated and opened while the document 61 is set on the flat bed 25 of the scanner unit 13 and the document cover 26 is closed. .

  As described above, in the embodiment of the present technology, when the document 61 is set on the flat bed 25 of the scanner unit 13 and the document cover 26 is closed, the scanner unit 13 is rotated to be opened. Since the rotation of the cover 26 can be restricted, the document cover 26 does not open. Therefore, not only can the document cover 26 be prevented from being damaged, but also the document is not dropped.

  Next, an embodiment of the present invention will be described. In addition, description is abbreviate | omitted about what has the same structure as the form of 1st technique, and the effect of the form of this technique is used about the effect of the invention by having the same structure.

  16 is a front view of the composite apparatus according to the embodiment of the present invention, FIG. 17 is a first diagram illustrating the operation of the composite apparatus according to the embodiment of the present invention, and FIG. 18 is a diagram of the composite apparatus according to the embodiment of the present invention. FIG. 19 is a third diagram illustrating the operation of the composite apparatus according to the embodiment of the present invention. FIG. 20 is a first diagram illustrating the operation of the position fixing lever according to the embodiment of the present invention. FIG. 21 is a fourth diagram showing the operation of the composite apparatus in the embodiment of the present invention, and FIG. 22 is a second diagram showing the operation of the position fixing lever in the embodiment of the present invention.

  In the figure, reference numeral 11 denotes a composite apparatus. The composite apparatus 11 serves as a first image processing section, a printer section 12 as an image forming section, and a second image processing section, and an image reading unit. The printer unit 12 includes a top cover 71 as a connecting member for mounting the scanner unit 13 on the printer unit 12. The top cover 71 is swingably disposed around the shaft 91. When the top cover 71 is placed in the closed position, the scanner unit 13 is placed in the closed position indicated by the solid line, and the top cover 71 is placed in the open position. When placed, the scanner unit 13 is placed in an open position indicated by a broken line.

  Reference numeral 74 denotes a stopper unit. When the front side of the composite apparatus 11 shown in FIG. 16 is the front surface, the stopper unit 74 is located on the left side of the composite apparatus 11 in FIG. The shaft 91 which is the center and the shaft 32 (FIG. 17) which is the swing center of the document cover 26 are fixed to the side where the shaft is disposed. The stopper unit 74 includes a weight unit 76 as a restricting member and an exterior member 86 surrounding the weight unit 76. The weight unit 76 includes a weight portion 77 and a weight support portion 78 that supports the weight portion 77, and the weight support portion 78 swings with respect to the exterior member 86 about a rotation shaft 82 as a swing center. Arranged freely. A locking portion 78a made of a protrusion is formed at one end (upper side) of the weight support portion 78.

  Reference numeral 79 denotes a position fixing lever as a locked portion attached to the lower portion of the document cover 26. The position fixing lever 79 is formed by projecting first and second lever portions 79a and 79b, A recess 81 is formed between the first and second lever portions 79a and 79b. The document cover 26 is disposed so as to be swingable with respect to the scanner unit 13 with the shaft 32 as the swing center.

  The weight unit 76 and the position fixing lever 79 constitute a rotation restricting portion.

  Next, the operation of the composite apparatus 11 having the above configuration will be described.

  As shown in FIG. 17, in the state where the scanner unit 13 and the document cover 26 are closed (when the scanner unit 13 is closed, the top cover 71 is also closed), the weight unit 76 is the first unit. In this state, as shown in FIG. 18, when the document cover 26 is rotated and opened while the scanner unit 13 is closed, the position fixing lever 79 is connected to the document cover 26. It is rotated without contacting the locking portion 78a integrally. Thus, when the scanner unit 13 and the top cover 71 are closed, the document cover 26 is allowed to rotate, and the document cover 26 can be opened.

  When the top cover 71 is rotated and opened while the document cover 26 is closed, as shown in FIG. 19, the scanner unit 13 is rotated and tilted. At this time, as the scanner unit 13 rotates, the weight unit 76 rotates so that the weight unit 77 is positioned below the rotation shaft 82 in the gravity direction (downward in the vertical direction). Along with this, the weight unit 76 is placed in the second state, and the locking portion 78 a approaches the position fixing lever 79.

  When the top cover 71 is further rotated and opened, the scanner unit 13 is further rotated and tilted as shown in FIGS. At this time, the weight unit 76 further rotates so that the weight 77 is positioned below the rotation shaft 82 in the direction of gravity. Along with this, the locking portion 78 a further moves around the rotation shaft 82 as a rotation center, and is positioned below the position fixing lever 79. For example, when the scanner unit 13 is rotated and opened in the scanner unit 13 while a thick document such as a book is set on the flat bed 25 as the main body unit, as shown by a broken line in FIG. Since the locking portion 78a enters the recess 81, the rotation of the document cover 26 can be restricted.

  As a result, the rotation of the document cover 26 is restricted by the weight support portion 78.

  As described above, in this embodiment, when the original is set on the flat bed 25 of the scanner unit 13 and the document cover 26 is closed, the scanner unit 13 is rotated and opened to fix the position. Since the rotation of the document cover 26 can be restricted by the first lever portion 79a of the lever 79, the document cover 26 is not opened.

  Further, when the scanner unit 13 is largely opened, the rotation of the document cover 26 can be regulated by the second lever unit 79b of the position fixing lever 79, so that the document cover 26 is not opened.

  Therefore, not only can the document cover 26 be prevented from being damaged, but also the document is not dropped.

  In each of the above-described technical forms and embodiments, the composite apparatus 11 in which the scanner unit 13 is disposed on the printer unit 12 has been described. The present invention can be applied to a composite apparatus having a scanner unit disposed thereon, or to a composite apparatus having an image forming unit disposed on a document reading unit.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

DESCRIPTION OF SYMBOLS 11 Compound apparatus 12 Printer part 13 Scanner part 24, 51 Stopper 25 Flat bed 26 Document cover 76 Weight unit 78a Locking part 79 Position fixing lever

Claims (3)

(A) a first image processing unit;
(B) On the first image processing unit, the main image unit and a lid that is arranged to be swingable with respect to the main image unit. A second image processing unit having a body,
(C) A locked portion is formed on the lid,
(D) A restricting member is swingably disposed on the main body,
(E) The restricting member is formed at an end facing the locked portion, and selectively locks with the locked portion by the action of gravity as the second image processing unit rotates. Provided with a locking part,
(F) The locking portion is not locked with the locked portion in a state in which the second image processing portion is closed with respect to the first image processing portion, and the lid is rotated with respect to the main body portion. And when the second image processing unit is rotated with the lid closed with respect to the main body, and without being completely closed with respect to the main body when the second image processing unit in a state of being made to face at a gap has been rotated, the forced locked sites different from each other and engaging the engaged portion, rotation of the lid relative to the body portion composite and wherein that you regulate. Before Symbol engaged portion is a composite device according to claim 1 which is formed adjacent to the swing center of the lid. (A) the first image processing unit is an image forming unit;
(B) The composite apparatus according to claim 1 or 2 , wherein the second image processing unit is an image reading unit.

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