JPH10299736A - Opining and closing part mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing part mechanism which can be attached/ detached and mounted by an inexpensive and simple operation without requiring tools, etc., by providing a rotary supporting point fitting an opening and closing part and an accepting part of a stopper member on the external side of the side plate of a device main body and restraining the stopper member on this accepting part by inserting the stopper member from the external side in the accepting part. SOLUTION: In an opening and closing part mechanism in which the opening part of the engagement part of the opening and closing parts of a cover and a unit, etc., is inserted and engaged along the rotary supporting point of the side surface of a device main body, a stopper pin part (e) of a stopper member (c) is inserted into a pin hole (h) of a supporting member (g) formed on the side plate of the device main body and a pull-out stop part (f) is inserted into a pull-out stop insertion part (i) so that the opening and closing parts may rotate within a prescribed angle range. By revolving the stopper member (c) couterclockwise with the stopper pin part (e) as a center, the pull-out, stop part (f) is moved along the circular arc part of the pull-out stop insertion part (i) and the stopper member (c) is restrained on the supporting member (g). At this time, a reverse revolution operation is prevented by the engagement with a stopper part (J) of a small projection (d') of an elastic part (d).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a cover which can be opened and closed,
The present invention relates to an opening / closing mechanism of an apparatus having a unit or the like, and more particularly to an opening / closing mechanism for simplifying attachment / detachment of the above-mentioned cover and unit to / from the apparatus main body and regulation of an opening / closing angle.

[0002]

2. Description of the Related Art Conventionally, for example, a fixing unit of a copying machine is mounted on a main body of the apparatus by a screw via a hinge, and its opening / closing angle is controlled by a band-shaped or belt-shaped regulating member 4a, 4b. 9 was regulated as shown in FIG.

[0003]

The above prior art has the following problems. (1) The attachment and detachment of the cover, the unit, and the like to and from the apparatus main body involves the attachment and detachment of screws, which requires tools and is troublesome. (2) Attaching and removing a band-shaped or belt-shaped member as an opening / closing angle regulating member requires a tool and is troublesome. The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the above-described problems in the conventional technology, to attach / detach a cover or a unit to / from an apparatus body, and to attach an opening / closing angle regulating member. It is an object of the present invention to provide an opening / closing mechanism which can be attached and detached and attached by a simple and inexpensive operation without requiring any tools or the like.

[0004]

To achieve the above object, an opening / closing section mechanism according to the present invention comprises a rotating fulcrum for fitting the opening / closing section and a receiving section for a stopper member c outside a side plate of the apparatus main body. And a stopper member c is provided on the receiving portion from outside.
This is achieved by an opening / closing mechanism in which a protruding portion e for regulating the rotation angle of the opening / closing portion is formed inside the side plate.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the opening / closing section mechanism according to the present invention, after the engaging section of the opening / closing section is engaged with the rotation fulcrum outside the side plate of the apparatus main body, a stopper member to be described later is inserted and set to set the angle. A regulating member is formed. In addition, all these operations can be performed only by manual operation without requiring special tools.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. 1 and 2 show an outline of an opening / closing mechanism according to an embodiment of the present invention. The opening / closing portions of a cover, a unit, and the like are set on a rotation fulcrum of a mounting portion of an apparatus main body (not shown). FIG. In the figure, a indicates an engagement portion of an opening / closing portion of a cover, a unit, and the like, and b indicates a rotation fulcrum on a side surface of the apparatus main body.

In the opening / closing section mechanism according to the present embodiment, the opening of the engaging section a of the opening / closing section of the cover, the unit, or the like is arranged in the short axis direction of the rotation fulcrum b (having an oval shape) on the side of the apparatus body. After insertion along the side (see FIG. 1), the open / close parts of the cover, unit, etc. are rotated clockwise to within a predetermined angle range (FIG. 2).
It is possible to rotate between (a) and (b).

In the above-mentioned predetermined angle range (FIGS. 2A and 2B)
This embodiment is characterized in that an angle regulating member (stopper member) described below is used in order to make it possible to rotate only during the state shown in FIG. As will be described later, this stopper member can be manufactured at low cost including the receiving side, and has a configuration that can be attached by a simple operation without the need for tools or the like.

FIG. 3 is an enlarged perspective view of the stopper member c and the supporting member g for receiving the stopper member c. The stopper member c according to the present embodiment is itself a single small part, and is inserted and set in a support member g (which is integrally formed on the apparatus main body side plate) described later. Things. In addition,
The stopper member c and the support member g are both formed of plastic.

First, the stopper member c is a stopper pin portion e inserted into the pin hole h of the support member g, and a stopper portion f also inserted into the stopper insertion portion i of the support member g. , Also having an elastic portion d that engages with the elastic portion stopper j of the support member g, and is formed of plastic as described above. In addition, the small protrusion d 'is provided in the elastic part d.

On the other hand, as described above, the support member g is integrally formed outside the apparatus main body side plate.
Pin hole h penetrating to the outside of side plate, stopper member c
After inserting the retaining member f, the stopper member c is rotated in the counterclockwise direction in the figure to lock the stopper member c with the supporting member g, and the elastic portion d of the stopper member c.
(Especially, the elastic portion stopper j which engages with the small protrusion d ')
Having.

Hereinafter, the operation of the opening / closing mechanism of the present embodiment configured as described above will be described with reference to FIGS. First, the opening of the engaging portion a of the opening / closing portion of the cover, the unit, etc. is inserted along the short axis direction of the rotation fulcrum b on the side of the apparatus main body (see FIG. 1). The part is rotated clockwise to the state shown in FIG.

Then, in this state, the stopper pin e of the stopper member c is inserted into the pin hole h of the support member g formed on the outside of the apparatus main body side plate, and the stopper member c is inserted into the stopper insertion part i. Insert the stop f. As described above, the stopper pin portion e penetrates the outside of the apparatus main body side plate, and its tip reaches the inside of the apparatus main body side plate, which opens and closes the cover, the unit, and the like in the state shown in FIG. )
To form a stopper to be locked.

On the other hand, in a state where the stopper member c is inserted into the support member g (see FIG. 4), the stopper member c is rotated counterclockwise about the stopper pin e to thereby prevent the stopper member c from coming off. Moves from the position of the opening of the stopper insertion portion i of the support member g to the arc-shaped narrowed portion in the figure, and as a result, the stopper member c is locked by the support member g and is prevented from falling out. (See FIG. 5).

Further, by the rotation of the stopper member c, the elastic portion d of the stopper member c moves along the elastic portion stopper portion j of the support member g, and the small projection d 'exceeds the elastic portion stopper portion j. (See FIG. 5). Accordingly, when the stopper member c moves clockwise, a large resistance is applied, and the reverse rotation operation of the stopper member c is substantially prevented, so that the stopper member c is stably positioned. .

The operation of the above-described stopper pin portion e will be described in more detail with reference to FIGS. Note that FIG.
FIG. 7 is a perspective view showing a main part of the opening / closing section, and FIG. 8 is a sectional view taken along the line BB of FIG. When the stopper member c is set on the side plate, as shown in FIG. 6, the stopper pin portion e projects into the side plate. In the opening and closing part,
As shown in FIG. 7, a stopper pin contact portion k is provided at a position where the stopper pin contact portion e is engaged.

Therefore, by setting the stopper member c after setting the opening / closing section on the apparatus main body, the opening angle of the opening / closing section is such that the above-mentioned stopper pin contact section k comes into contact with the stopper pin section e inside the side plate. It will be regulated by the position. The formation of the support member g on the apparatus main body side plate described above
Since the stopper member c is a plastic molded product, the function can be improved without increasing the cost.

According to the above-described embodiment, the attachment of the cover and the unit to the apparatus main body and the attachment of the opening / closing angle regulating member of the cover and the unit become extremely simple, and the effect that no tool or the like is required is obtained. In terms of price, the cost reduction effect is also significant because all the parts are plastic molded products. It should be noted that the above embodiment is an example of the present invention, and it is needless to say that the present invention is not limited to this. For example, instead of providing a protrusion such as a stopper pin contact portion k to restrict the rotation angle, a groove corresponding to the rotation range may be provided on the side surface of the cover.

[0019]

As described above in detail, according to the present invention, no tools or the like are required for attaching / detaching the cover, the unit and the like to / from the apparatus main body and for attaching the opening / closing angle restricting member, and the operation is inexpensive and simple. Thus, a remarkable effect that an opening / closing unit mechanism that can be attached / detached / attached can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram (part 1) illustrating an outline of an opening / closing mechanism according to an embodiment of the present invention.

FIG. 2 is a diagram (part 2) illustrating an outline of an opening / closing unit mechanism according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a stopper member and a support member according to the embodiment.

FIG. 4 is a diagram (part 1) illustrating the operation of the stopper member and the support member illustrated in FIG. 3;

FIG. 5 is a view (part 2) illustrating the operation of the stopper member and the support member illustrated in FIG. 3;

FIG. 6 is a side view as viewed in the direction of arrow A in FIG. 3;

FIG. 7 is a perspective view illustrating a main part of an opening / closing unit according to the embodiment.

FIG. 8 is a sectional view taken along line BB of FIG. 6;

FIG. 9 is a diagram illustrating a conventional technique.

[Explanation of symbols]

 a Engagement part of opening / closing part b Rotating fulcrum on the side of the device body c Stopper member d Elastic part d 'small projection e Stopper pin part f Retaining part g Support member h Pin hole i Retaining part insertion part j Elastic part stopper part k Stopper Pin contact part

Claims (3)

[Claims] An opening / closing mechanism of an apparatus having an opening / closing section, wherein a rotation fulcrum for fitting the opening / closing section and a stopper member receiving section are provided outside a side plate of the apparatus main body, and the stopper member receiving section is provided. An opening / closing section mechanism, wherein a projection for restricting a rotation angle of the opening / closing section is formed inside the side plate by being inserted and locked from outside. 2. The stopper member includes a pin portion that penetrates a pin hole of the stopper member receiving portion, a retaining portion that engages with a retaining insertion portion of the stopper member receiving portion,
The opening / closing section mechanism according to claim 1, further comprising: an elastic section that engages with the elastic section stopper section of the stopper member receiving section. 3. The device according to claim 2, wherein the opening / closing portion has an engaging portion fitted to a rotation fulcrum provided outside the side plate of the apparatus main body, and an engaging portion abutting on a pin portion of the stopper member. The opening / closing section mechanism according to claim 2, wherein