KR0138432Y1 - Operating apparatus - Google Patents

Abstract

[purpose]

Provided is an opening / closing device of an opening and closing body which can prevent abrasion and joint occurrence between a cam portion of a cam member and a slider even when grease is not used in the cam mechanism.

[Configuration]

Between the attachment member provided in the main body of the apparatus and the support member connected to the rotational material through the hinge pin for supporting the opening and closing body to this attachment member, the slider which is slidably pushed against the cam member and the cam part of this cam member In a switchgear provided with a cam mechanism, a dry film lubricant is coated on one or both of the contact surfaces of the cam portion and the slider of the cam member. At that time, the cam member may be made of synthetic resin, and the portion of the slider which is in contact with the cam of the cam member may be made of metal, and the dry film lubricant may be coated on one or both of the contact surfaces.

Description

Switchgear

1 is a side view of the switchgear according to the present invention.

2 is a side cross-sectional view of the switchgear according to FIG.

3 is a sectional view taken along the line A-A of the switchgear according to FIG.

4 is a side cross-sectional view of the opening and closing body according to FIG.

* Explanation of symbols for main parts of the drawings

1: device body 2: opening and closing body

3: switchgear 4: attachment member

5 support member 6 hinge pin

8: Cam member 11: Operation pin

12 elastic means 13 slider

13a: head 15: cam mechanism

16,17: dry film lubricant

[Industrial use]

The present invention relates to a switchgear suitable for use in a switchgear, such as a document press plate, such as copiers and printers.

[Prior art]

Background Art [0002] Conventionally, as an opening and closing apparatus of an opening and closing body such as a copying plate or a printing press, such as a document presser, an attachment member attached to the apparatus main body side, a support member rotatably fixed to one end of the attachment member by a rotating material, and the attachment member side It is known that the cam member is fixed to the cam member and the slider is brought into contact with the tip of the cam member of the cam member and slides in one direction to the inside of the support member.

This conventionally known opening and closing device applies a large amount of grease between the cam portion of the cam member and the tip of the slider, which is rubbed in a press-contact state of the cam mechanism, and improves slippage to prevent wear and noise caused by use. have.

[Problem to Solve]

Using this grease for a long period of time, if the grease breaks up for some reason, there is a problem that the grease may be generated or worn out when opening or closing the switch. In addition, opening and closing of a switch such as a presser plate such as a copier or a printing press At the time of use, depending on the form or form of the original placed on the contact glass, the original may be contaminated with grease by contacting the cam member or the slider of the switch. In addition, there have been problems such as contamination of hands with grease if carelessness during assembly or transportation.

It is an object of the present invention to provide an opening and closing device of an opening and closing body that can prevent abrasion and joint occurrence between a cam portion and a slider of a cam member even if grease is not used in the cam mechanism.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a cam member and a cam member between an attachment member installed on an apparatus main body side and a support member connected to a rotating material through a hinge pin to support an opening and closing body on the attachment member. In the cam mechanism comprising a slider pushed in one direction against the cam portion, a dry film lubricant is coated on one or both of the contact surfaces of the cam portion and the slider of the cam member.

In this case, the present invention can use a compression spring for the elastic means or fix the cam member to the attachment member side to hold the slider together with the elastic means on the support member side.

The present invention can also make the cam member made of synthetic resin, and the portion of the slider which is in contact with the cam portion of the cam member can be made of metal.

[Action]

The cam part of the cam member and the surface of the slider are not always wetted with grease or the like by the dry film lubricant coated on the cam part of the cam member or one or both of the sliders in contact with the cam part. The contact movement is made smoothly, it is possible to prevent the occurrence of joints, such as wear or wheezing due to the opening and closing operation of the opening and closing body.

In Claim 2, the torque curve of the hinge approximating the rotational moment of an opening-and-closing body can be created by a compression spring.

The slider according to claim 3, wherein the slider rotates together with the support member while being in pressure contact with the cam portion of the cam member and slides in the axial direction of the elastic means.

In Claim 4, the metal part which contacts a cam member improves sliding, and can prevent abrasion.

EXAMPLE

The figure shows a case where the present invention is applied to an opening and closing device of an element pressing plate such as a copying machine or a printing press. In FIG. 1, 1 is an opening body of a copying machine, 2 is an original pressing plate, and 3 is opening and closing. Opening and closing device for opening and closing the sieve (2). Although only one is shown in the figure, normally two are used. Next, the internal structure of the switchgear is demonstrated.

2, the both side plates 4a and 4a of the cross-sectional substantially C-shaped attachment member 4 fixed on the apparatus main body 1 are similarly arranged on both sides of the support member 5 of the cross-sectional substantially C-channel shape. One end portion 5a, 5a is condensed with a rotating material through the hinge pin 6. The cam member 8 is fixed by the hinge pin 6 and the fixing pin 7 between the side plates 4a and 4a of the attachment member 4.

On the free end side of both side plates 5a and 5a of the support member 5, the lift member 9 which protrudes the attachment plates 9a and 9a on both sides is provided with the support pin 10 at one side of the both side plates 9b and 9b. It is condensed with the rotating materials through). The actuating pin 11 is hung on a position different from that of the support member 5 by the support pins 10 of the side plates 9b and 9b of the lift member 9. In particular, as shown in FIG. 3, the attaching portions 2a and 2a of the opening and closing body 2, which are made of the original pressing plate, are fixed to the attaching plates 9a and 9a of the lift member 9. As shown in FIG.

12 and 12 are elastic means which are compressed coil springs, and these elastic means 12, 12 are in particular sliding to the holding portions 5c, 5c of the supporting member 5, as shown in FIG. It is accommodated in the usual slider 13 forged freely, it is coalesced between the slider 13 and the support member 5, and the slider 13 is slid in one direction. 14 is a spring receiving member. The spring receiving member 14 may be pivotally mounted to the support member 5 in a swingable manner.

In this way, the cam mechanism 15 is provided by the cam member 8 fixed to the attachment member 4 and the lengthened slider 13 slid in one direction together with the elastic means 12 inside the support member 5. Consists of. Further, as another embodiment, there is also a configuration in which the slider is mounted on the attachment member side together with the elastic means, and the cam member is fixed on the support member side, and the present invention can be applied to this type of opening and closing device as it is.

The cam member 8 is composed of synthetic resin such as polyacetal, and the cam portion (of course, the entire cam member may be applied) is coated with a coating material such as, for example, the brand name Smiron IFL, and is spray coated, immersed, and brushed. And a coating such as tumbling, and a dry film lubricant 16 is formed. The front end of the slider 13 is fitted with a head 13a on which the sheet metal is made of a sheet of SPCC metal, for example, of about 1 mm, on the front end thereof, and the surface of the product is made of polyamideimide resin. A dry film lubricant 17 coated with a cord 3610 and calcined at 220 ° C. for 30 minutes is coated. In addition, the coating method includes spray coating, dip coating, brushing, and tumbling.

As a result of 200,000 times of opening and closing tests using the opening and closing device 3 configured as described above, even if no grease is used, both the cam and the head of the slider can see no noise or creak. It was found that exhibiting stable lubricity. As this type of switchgear, it is usually a condition to pass 50,000 endurance tests, and the switchgear according to the present invention sufficiently clears this acceptance criterion.

In addition, the present invention is applicable to various switchgear devices that require oilless to the cam mechanism in addition to the switchgear of the switchgear such as a document press plate such as a copy machine or a printing machine.

[Effect of design]

The present invention has the following effects because it is configured as described above.

When configured as in claim 1, even if grease is not used, a stable lubricity of the cam mechanism can be ensured, so that hands are not contaminated during assembling or transportation, and there is no fear of wear or joints due to breakage of grease due to something during use. In addition, especially when used as an opening / closing device of a pressure plate, such as a copier or a printing machine, the original may come into contact with grease and may not have a worry of being contaminated.

When configured as in claim 2, since the compression spring creates a hinge torque that is close to the rotation moment curve of the opening and closing body, there is an advantage of preventing excessive force from being applied to the cam mechanism.

When configured as in claim 3, the slider and the elastic means are accommodated in the support member so that the support member also serves as a spring case, and the pivot support of the opening and closing body can be moved forward from the rear end of the apparatus main body. There is an advantage that the rear space can be omitted.

When configured as in claim 4, the contact movement between the cam portion of the cam member and the slider becomes smoother, and wear does not occur even after long-term use.

Claims (4)

Between the attachment member provided in the main body of the apparatus and the support member connected to the rotating material through the hinge pin to support the opening and closing body to the attachment member, the slider is slidably pushed in one direction in contact with the cam member and the cam portion of the cam member. An open / close device provided with a cam mechanism comprising: a dry film lubricant coated on one or both contact surfaces of a cam portion of a cam member and a slider. 2. The opening and closing device according to claim 1, wherein the elastic means is a compression spring. The opening and closing apparatus according to claim 1 or 2, wherein the cam member is fixed to the attachment member side, and the slider is stored on the support member side together with the elastic means. 4. The opening and closing apparatus according to any one of claims 1 to 3, wherein the cam member is made of synthetic resin, and the portion of the slider in contact with the cam portion of the cam member is made of metal.