JP4593844B2 - Image forming apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image forming apparatus such as a copying machine, a printer, a facsimile, and a composite device thereof.
[0002]
More specifically, it has an operation part having a display function at a position separated from the apparatus main body, an arm-shaped support member that supports the operation part on the apparatus main body, and the center of gravity of the support member is The present invention relates to an image forming apparatus that is not on a coupling surface.
[0003]
[Prior art]
FIG. 6 shows an example of an image forming apparatus such as a copying machine, a printer, and a facsimile having the above-described configuration. An automatic document feeder 2 is provided on the image forming apparatus main body 1 (hereinafter referred to as the apparatus main body), and the automatic document feeder 2 has a placement portion 2a for setting a sheet-like document, and automatic document feed. A reader unit 3 for optically reading document information is provided at the uppermost part of the lower surface of the apparatus 2 on the apparatus main body side.
[0004]
The automatic document feeder 2 can be opened and closed at an arbitrary angle with the back side as a hinge so as to be able to read not only a sheet-like document but also a book document.
[0005]
On the upper right side of the apparatus main body adjacent to the automatic document feeder 2, there is a document discharge tray 2b on which a document discharged after reading a document is stacked.
[0006]
Further, an operation unit 6 (elevation display) having a display unit 6a is arranged on the upper portion of the document discharge tray 2b.
[0007]
By operating the operation unit 6, the recording sheet built in the sheet cassette 7 is recorded on the basis of the original data read from the reader unit 3 by the image forming unit 4, and then the paper discharge tray. 10 is discharged onto the top.
[0008]
Further, as shown in FIG. 7, the conventional operation unit 6 is rotatably held at one end portion 105c of an arm-like support member 105 arranged substantially horizontally via a column 6d, and is fixed as the other end portion. The portion 105d is connected and fixed by a connecting portion 101a of the apparatus main body and a plurality of screws 105b.
[0009]
[Problems to be solved by the invention]
However, according to the above conventional configuration example, when the support member 105 is assembled and fixed to the coupling portion 101a of the apparatus main body, the center of gravity 105a of the support member 105 is not located on the coupling portion 101a with the apparatus main body. The position of the insertion portion of the screw 105b is adjusted in the state held in the above, that is, the screw through hole on the support member 105 side and the screw hole on the coupling portion 101a side are aligned, and the screw 105b is tightened with the other hand. There is a problem that a difficult operation is forced and the support member 105 is accidentally dropped.
[0010]
The present invention has been made in view of the above problems, and has an operation unit having a display function at a position separated from the image forming apparatus main body as described above, and supports the operation unit on the apparatus main body. For an image forming apparatus that has an arm-shaped support member and the center of gravity of the support member is not on the coupling surface with the apparatus main body, when an arm-shaped support member that supports the operation unit on the apparatus main body is assembled to the apparatus main body, An object of the present invention is to improve workability and safety by allowing the operator to perform the joining work with the apparatus main body without holding the member.
[0011]
[Means for Solving the Problems]
Since the present invention to achieve the object by solving the above problems, and an operation unit having a display function releases the device body or Ra遊 position, attached at the coupling surface to the apparatus main body, for supporting the operation part has an arm-shaped support member, in an image forming apparatus not in the center of gravity is on the coupling surface of the support member, a first hole portion provided on one of the support member and the apparatus body at the binding surface A protrusion provided in the other of the support member and the apparatus main body on the coupling surface and fitted into the first hole, and provided on either the support member or the apparatus main body on the coupling surface. A second hole and a key shape that is provided on the other of the support member and the apparatus main body on the coupling surface, and is locked to the second hole so that the support member is held on the coupling surface by its own weight. The key part of the shape, And, in a state in which the support member is attached in the coupling surface in the device body, the tip of the key unit by which lies opposite to the side where the projecting portion is disposed relative to the second hole The operator can hold the supporting member without holding the supporting member.
[0012]
Further, with arranging the key part in the area is larger in the distance from the second hole portion which is attached to the distance to the center of gravity of the support member from a center of the protrusion to the center of gravity of the support member, wherein by supporting member is positioned by fitting between the projecting portion and the first bore portion of the key part pledged obliquely with respect to the coupling surface after hooked to the second hole, a support member Since the support member does not fall off unless it is lifted obliquely, it is possible to prevent the support member from being accidentally dropped during assembly work.
[0013]
Furthermore, before Ki支 lifting member, wherein a coupling position protruding portions as the rotation center within a predetermined angle selectable fixed, also functions of the second hole portion to regulate the angular range of the coupling position By aligning, even if the support member is inadvertently moved in the horizontal direction during work, the screw hole of the main body side fixing portion is restricted to a range that can be always confirmed through the hole portion of the support member. Therefore, screw connection can be easily performed.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
[Example 1]
The main part of the first embodiment of the present invention will be described below with reference to FIGS.
[0015]
In this figure, the function of the image forming apparatus main body is the same as that of the conventional example described with reference to FIG.
[0016]
In FIG. 1, the operation unit 6 having the display unit 6a is rotatably held at one end portion 5e of an arm-like support member 5 arranged substantially horizontally via a column 6d.
[0017]
The support member 5 has the other end portion 5f, an engaging portion (positioning protrusion) 5b and a key-shaped locking portion (key-shaped hook portion) 5c, respectively, a hole 1b and a square hole 1c in the coupling portion 1a of the apparatus body 1. In this state, the plurality of fixing screws 105d are connected and fixed through the through hole 5d. 1d is a screw hole on the coupling portion 1a side.
[0018]
In the above configuration, when the support member 5 is assembled to the coupling portion 1a of the apparatus main body, as shown in FIG. 2, the locking portion 5c having the key shape of the support member 5 is connected to the square hole 1c of the coupling portion 1a of the apparatus main body. Is inserted obliquely in the direction of arrow a in the figure, and then the engaging portion 5b is fitted into the hole 1b of the connecting portion 1a.
[0019]
At this time, even if the operator does not hold the support member 5, since a downward force is applied to the center of gravity 5a, the key-shaped part of the locking part 5c is caught in the square hole 1c of the coupling part 1a, so that the temporarily fixed state is achieved. Even before the fixing screw 105d is tightened, the substantially horizontal posture as shown in FIG. 3 is maintained.
[0020]
Further, since the engaging portion 5b and the locking portion 5c have only a minimum gap necessary for the assembling work between the hole 1b and the square hole 1c of the coupling portion 1a, the locking portion 5c is a square hole. Since the rotation about the engaging portion 5b is restricted by 1c, it is supported as long as the engaging portion of the engaging portion 5b and the locking portion 5c is not broken against the force from any substantially horizontal direction applied to the support member 5. The member 5 does not fall off. The size of the through hole 5d is set so that the screw hole 1d of the apparatus main body side fixing portion can always be confirmed from the through hole 5d on the support member 5 side.
[0021]
In order to remove the temporarily fixed support member 5 as shown in FIG. 3, the support member 5 is lifted obliquely so that the assembly operation is followed in reverse, and the engaging portion 5b and the locking portion 5c are removed from the coupling portion 1a of the apparatus main body. There is no choice but to extract.
[0022]
Therefore, according to this embodiment, a. As shown in FIG. 3, the operator can easily perform a coupling operation such as screw fixing without holding the support member 5 in the temporarily fixed state.
[0023]
b. Since the locking portion cannot be removed unless the support member 5 in the temporarily fixed state is lifted obliquely, it is possible to prevent the support member 5 from being dropped during the assembly operation.
[0024]
c. Even if the support member 5 is inadvertently moved during the operation, the screw hole 1d of the fixing portion on the apparatus main body side is always in a range that can be confirmed from the through hole 5d of the support member 5, and the screw connection can be easily performed.
[0025]
In this embodiment, the center of gravity 5a has been described with the operation unit 6 attached to the support member 5. However, as shown in FIG. 3, the support member 5 is attached to the coupling portion 1a of the apparatus main body. Even when the operation portion 6 is assembled into the support member 5 after screwing, the center of gravity 5a of the support member 5 alone is on the engaging portion 5b side, but the same effect as described above can be obtained.
[0026]
[Example 2]
A second embodiment of the present invention will be described below with reference to FIGS.
[0027]
The configuration of the second embodiment is different from the configuration of the first embodiment in the following two points (1) and (2).
[0028]
(1). The locking portion 5c and the square hole 1c are moved to the positions of the locking portion 5c ′ and the square hole 1c ′, respectively, which are rotated approximately 90 degrees around the engaging portion 5b.
[0029]
(2). The through hole 5d and the square hole 1c are expanded in the circumferential direction centering on the engaging portion 5b, and the main body of the support member 5 is within a range in which the end of the engaging portion 5c 'abuts against the end surface of the square hole 1c'. The mounting angle with respect to the coupling portion 1a can be selected, that is, the position of the operation portion 6 can be changed.
[0030]
In the second embodiment, by adopting the configuration (1), if the support member 5 is tilted not in the longitudinal direction but in the lateral direction when the apparatus main body is attached to or detached from the coupling portion 1a, the key portion of the locking portion 5c ' Since the insertion / removal is possible, the support member 5 can be easily handled even when the operation unit 6 is coupled.
[0031]
In addition, since the position of the operation unit 6 with respect to the apparatus main body can be changed by adopting the configuration of (2) ((a) ⇔ (b) in FIG. 5), the apparatus can be installed by the user according to the user's request. The degree of freedom of the operation unit layout is improved.
[0032]
These effects are added to the effects obtained in the first embodiment.
[0033]
Further, as shown in FIG. 4, the arrangement of the locking portions 5c and 5c ′ in the first and second embodiments is from the distance L between the engaging portion 5b and the center of gravity 5a to the center of gravity 5a and the locking portions 5c and 5c ′. By providing in the region A where the distances L1 and L2 are increased, the engaging portion 5b is unlikely to be disengaged from the through hole 5d before the locking portion 5c even if the support member 5 is urged downward by its own weight. The effect of preventing the support member 5 from falling can be improved.
[0034]
The engaging portion 5b and the locking portions 5c and 5c ′ may be provided on the coupling portion 1a side of the apparatus main body, and the hole 1b and the hole 1c may be provided on the support member 5 side. One of the engaging portion 5b and the locking portions 5c and 5c ′ is provided on the coupling portion 1a side of the apparatus main body, and the other is provided on the support member 5 side. Correspondingly, one of the hole 1b and the hole 1c is provided on the coupling portion 1a of the apparatus main body. The other side may be provided on the support member 5 side.
[0035]
【The invention's effect】
As explained above, according to the present invention,
1. Connection work such as screw fixing can be easily performed without the operator holding the support member.
[0036]
2. Since the locking portion cannot be removed unless the support member is lifted obliquely, the support member can be prevented from dropping during the assembly operation.
[0037]
3. Even when the support member is inadvertently moved during the operation, the screw hole of the main body side fixing part can always be confirmed from the through hole of the support member, so that the screw can be easily coupled after returning to the target position. .
[0038]
It is possible to improve the workability and safety.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view in the vicinity of a support member of an image forming apparatus according to Embodiment 1 of the present invention. FIG. FIG. 3 is a partially cutaway side view in the vicinity of a support member in a temporarily fixed state of an image forming apparatus according to Embodiment 1 of the present invention. FIG. 4 is a support member of an image forming apparatus according to Embodiment 2 of the present invention. Perspective plan view of the assembly state of the machine as seen from above (Part 1)
FIG. 5 is a perspective plan view of the assembled state of the support member of the image forming apparatus according to Embodiment 2 of the present invention as viewed from above (part 2);
FIG. 6 is an external perspective view showing the present invention and a conventional image forming apparatus. FIG. 7 is a partially cutaway side view in the vicinity of a support member of an image forming apparatus according to a conventional example.
1: apparatus main body, 1a / 101a: main body coupling unit, 2: automatic document feeder, 2a: document placing unit, 2b: document discharge tray, 3: reader unit, 4: image forming unit, 5.105: support Members, 5a and 105a: center of gravity, 5b: engagement portion, 5c: locking portion, 5d: through hole, 6: operation portion, 6a: display portion, 6c: operation button, 6d: pillar, 7: sheet cassette, 10 : Output tray

Claims (3)

Includes a manipulation unit having a display function In the device releases body or Ra遊 position, attached at the coupling surface to the apparatus main body, and a arm-shaped support member for supporting the operating section, the In the image forming apparatus in which the center of gravity of the support member is not on the coupling surface,
A first hole provided in one of the support member and the apparatus main body on the coupling surface;
A protrusion that is provided on the other of the support member and the apparatus main body on the coupling surface and fits into the first hole;
A second hole provided in one of the support member and the apparatus main body on the coupling surface;
A key-shaped key part that is provided on the other of the support member and the apparatus main body on the coupling surface and is locked to the second hole so that the support member is held on the coupling surface by its own weight;
Having
In a state where the support member is coupled to the apparatus main body at the coupling surface, a tip of the key portion is located on a side opposite to the side where the projecting portion is disposed with respect to the second hole portion . Image forming apparatus. With placing the key unit in the area the larger the distance to the center of gravity of the supporting member from said second hole portion which is attached to the distance to the center of gravity of the support member from a center of the projecting portion, said support member claim and characterized in that it is positioned by fitting between the projecting portion and the first bore portion of the key part pledged obliquely with respect to the coupling surface after hooked to the second bore section 1 The image forming apparatus described in 1. Before Ki支 lifting member, wherein a coupling position protruding portion within the center of rotation a predetermined angular selectable fixed, by combining its function the second hole portion to regulate the angular range of the coupling position The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus.

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