CN101458471B - Manuscript pressure strip switching device - Google Patents
Manuscript pressure strip switching device Download PDFInfo
- Publication number
- CN101458471B CN101458471B CN200710195784A CN200710195784A CN101458471B CN 101458471 B CN101458471 B CN 101458471B CN 200710195784 A CN200710195784 A CN 200710195784A CN 200710195784 A CN200710195784 A CN 200710195784A CN 101458471 B CN101458471 B CN 101458471B
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- fluid
- fluid chamber
- piston rod
- press plate
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Abstract
The invention relates to a closing-opening device of a manuscript pressure strip in copycat, electrograph, scanner or all-in-one machine which is composed of components as follows: an installing component installed in the copycat; a supporting component that is pivoted on the installing component and supports the manuscript pressure strip; a first sliding component and a second sliding component that is sliding contained in the supporting component; a compression helix spring that can insert into the sliding components and endow elastic to direction of the manuscript pressure strip, the compression helix spring has have characteristics that a fluid buffer is set in the compression helix spring, and the buffer is composed of components as follows: a cylinder that installs and fixes a base end on the first sliding component; a cylinder rod sliding installed on the cylinder; and a contact system that is integrated set with the cylinder rod and the front end contacts with the second sliding component; a first fluid chamber formed on one side of the cylinder rod; a second fluid chamber formed on another side of the cylinder rod; a fluid adjusting needle valve that adjusts fluid rate between the first fluid chamber and the second fluid chamber with the cylinder rod moving.
Description
Technical field
The present invention relates to the opening and closing device of the manuscript press plate in duplicating machine, facsimile recorder, scanner or these compounding machines.
Background technology
In the past, the opening and closing device of manuscript press plate comprised following each member and constituted: the installation component that is installed in apparatus main body such as duplicating machine; Be hubbed on this installation component rotationally, support the supporting member of manuscript press plate simultaneously; The the 1st and the 2nd saddle that in this supporting member, holds slidably; Insert in these saddles, simultaneously give flexible compression helical spring, and fluid buffer is set between above-mentioned installation component and supporting member, supporting member only could be started below angled necessarily closing toward the direction of opening above-mentioned manuscript press plate.
But shown in Fig. 4 (A), the absorption energy of above-mentioned fluid buffer is fixed, and therefore cooperates the weight of manuscript press plate (ADF) must prepare the different impact dampers that absorb the energy, productivity is reduced or the cost raising.
Patent documentation 1: utility model is logined communique No. 2589714
Summary of the invention
The purpose of this invention is to provide a kind of opening and closing device that can solve the manuscript press plate at above-mentioned fluid buffer problem place.
For achieving the above object, the opening and closing device of manuscript press plate of the present invention is to be made up of following each member: the installation component that is installed on a little apparatus main bodies of duplicating machine; Be hubbed on this installation component rotationally, support the supporting member of manuscript press plate simultaneously; The the 1st and the 2nd saddle that in this supporting member, holds slidably; Insert in these saddles, give flexible compression helical spring toward the direction of opening above-mentioned manuscript press plate simultaneously; It is characterized in that; In above-mentioned compression helical spring, fluid buffer is set, and this impact damper is made up of following each member: the cylinder of base end part being installed, is fixed in above-mentioned the 1st saddle; Be slidably mounted on the piston rod of this cylinder; Be wholely set with this piston rod, and make its leading section be contacted with above-mentioned the 2nd saddle and the contact system that is provided with; Be formed at the 1st fluid chamber of above-mentioned piston rod one side; Be formed at the 2nd fluid chamber of above-mentioned piston rod opposite side; Adjustment flows in the flow adjustment of the fluid rate between above-mentioned the 1st fluid chamber and the 2nd fluid chamber and uses needle-valve along with moving of above-mentioned piston rod.
And, forming the fluid passage of streaming flow between the above-mentioned the 1st and the 2nd fluid chamber in the said cylinder, it is characteristic that the needle-valve of the fluid amount of flow of this fluid passage of adjustment is installed on above-mentioned contact system.
Therefore, the opening and closing device of manuscript press plate of the present invention is even the weight of open and close members such as manuscript press plate changes; Just shown in Fig. 4 (B); 1 impact damper can be adjusted the absorption energy, and has and can shorten the effect of opening opening and closing device, and; Have under the state of having assembled, can adjust the effect that absorbs energy power easily and rapidly by user or attendant.
Description of drawings
Fig. 1 is the sectional view of opening and closing device the 1st embodiment of expression manuscript press plate of the present invention.
Fig. 2 is the outside drawing (A) and the amplification profile (B) of expression fluid buffer shown in Figure 1.
Fig. 3 is the effect synoptic diagram of presentation graphs 1 shown device.
Fig. 4 is the chart (B) of energy absorbability of representing chart (A) and the expression body impact damper of the present invention of the energy absorbability of fluid buffer in the past.
Embodiment
Below, describe the embodiment of the opening and closing device of manuscript press plate of the present invention in detail with reference to accompanying drawing.
In the accompanying drawing 1, label P is a manuscript press plate, can be installed on the apparatus main body M of duplicating machine through opening and closing device H with opening and closing, and above-mentioned opening and closing device H mainly is made up of following each member: the installation component 1 that is installed on said apparatus main body M; Be hubbed at the supporting arm 3 of this installation component 1 rotationally through hinge axis 2; Be hubbed at this supporting arm 3 front ends rotationally through bolster 4, install, fix the lifting arm 5 of above-mentioned manuscript press plate P simultaneously.
In the above-mentioned supporting arm 3; Hold the 1st saddle 6 and the 2nd saddle 7 slidably along its length direction; Insert compression helical spring 8 through 7 of these the 1st saddle the 6, the 2nd saddles simultaneously, compression helical spring 8 is double-helix springs in the present embodiment, but is not limited thereto.The protruding car driven member 7a of above-mentioned the 2nd saddle 7 is contacted with on the cam part 9 that is arranged on above-mentioned installation component 1.
In addition, opening and closing device H of the present invention is not limited to above-mentioned structure, for example omits supporting axis 4 and lifting arm 5, and above-mentioned manuscript press plate P is installed, is fixed in the structure of supporting arm 3 etc., and well-known in the past any structure gets final product.
Above-mentioned piston rod 10b is contained among the said cylinder 10a slidably, is formed with the 1st 10d of fluid chamber in the side of piston rod 10b, and is formed with the 2nd 10e of fluid chamber at opposite side, along with the volume that moves these of piston rod 10b just changes.
Be formed with fluid passage 10j among the above-mentioned piston rod 10b; Along with moving of piston rod 10b; Make the viscous fluid (for example silicone oil) in the 1st 10d of fluid chamber move to the 2nd 10e of fluid chamber; And making the fluid in the 2nd 10e of fluid chamber move to the 1st 10d of fluid chamber on the contrary, above-mentioned flow adjustment is a mobile flow of adjusting fluid with needle-valve 10f, with the adjustment of the absorption energy power that reaches fluid buffer 10; Flow adjustment is under the situation of opening open and close member H with needle-valve 10f, can its rear side (downstream) adjusts easily from wearing.
Opening and closing device of the present invention is like above-mentioned formation; Therefore start manuscript press plate P; Make it close to state shown in Figure 3 from state shown in Figure 1; Then the weight of manuscript press plate P surpasses the lifting force of compression helical spring 8, and when just descending suddenly, the front end of the contact system 10c of above-mentioned fluid buffer 10 just is contacted with above-mentioned the 2nd saddle.
The front end of contact system 10c is contacted with above-mentioned the 2nd saddle, then with the above-mentioned piston rod 10b of this contact system 10c one just in said cylinder 10a, desire to move toward the 1st fluid chamber's 10d direction.
Piston rod 10b moves toward the 1st fluid chamber's 10d direction, and then the fluid among the 1st 10d of fluid chamber just moves toward the 2nd 10e of fluid chamber via fluid passage 10j, that is the energy power that fluid buffer 10 is absorbed is according to the flow of fluid through fluid passage 10b '.
Claims (2)
1. the opening and closing device of a manuscript press plate, it is made up of following each member: the installation component that is installed on the duplicating machine apparatus main body; Be hubbed at the supporting arm of this installation component rotationally through hinge axis; Be hubbed at the front end of this supporting arm rotationally through bolster, install simultaneously, the fixing lifting arm of manuscript press plate; In this supporting arm, hold the 1st and the 2nd saddle along its length direction, the said the 1st and the 2nd saddle can slide in this supporting arm; Insert in these saddles; Give the compression helical spring of elastic force simultaneously toward the direction of opening above-mentioned manuscript press plate; It is characterized in that; In above-mentioned compression helical spring, fluid buffer is set, and this impact damper is made up of following each member: the cylinder of base end part being installed, is fixed in above-mentioned the 1st saddle; Be slidably mounted on the piston rod of this cylinder; Be wholely set with this piston rod, and make its leading section be contacted with above-mentioned the 2nd saddle and the contact system that is provided with; Be formed at the 1st fluid chamber of above-mentioned piston rod one side; Be formed at the 2nd fluid chamber of above-mentioned piston rod opposite side; Form the fluid passage of streaming flow between the above-mentioned the 1st and the 2nd fluid chamber in the above-mentioned piston rod, the flow adjustment is located in the said path with needle-valve, and adjustment flows in the fluid rate between above-mentioned the 1st fluid chamber and the 2nd fluid chamber along with moving of above-mentioned piston rod.
2. the opening and closing device of manuscript press plate as claimed in claim 1; It is characterized in that; Form the fluid passage of streaming flow between the above-mentioned the 1st and the 2nd fluid chamber in the above-mentioned piston rod, the needle-valve of the fluid amount of flow of this fluid passage of adjustment is installed on above-mentioned contact system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710195784A CN101458471B (en) | 2007-12-13 | 2007-12-13 | Manuscript pressure strip switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710195784A CN101458471B (en) | 2007-12-13 | 2007-12-13 | Manuscript pressure strip switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101458471A CN101458471A (en) | 2009-06-17 |
| CN101458471B true CN101458471B (en) | 2012-10-10 |
Family
ID=40769408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710195784A Expired - Fee Related CN101458471B (en) | 2007-12-13 | 2007-12-13 | Manuscript pressure strip switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101458471B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577170B (en) * | 2014-07-18 | 2017-04-01 | 信泰光學（深圳）有限公司 | Scanner and hinge module thereof |
| CN110392179B (en) * | 2018-04-16 | 2021-11-02 | 柯尼卡美能达办公系统研发（无锡）有限公司 | Document pressing mechanism and image forming apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2589714Y2 (en) * | 1992-12-22 | 1999-02-03 | 加藤電機株式会社 | Opening / closing device for original cover |
| US6456365B1 (en) * | 1999-11-30 | 2002-09-24 | Katoh Electric Machinery Co., Ltd. | Original cover closer |
| JP2003295355A (en) * | 2002-04-03 | 2003-10-15 | Shimonishi Giken Kogyo Kk | Opening and closing apparatus for original press-contact plate |
| JP2006133532A (en) * | 2004-11-05 | 2006-05-25 | Kato Electrical Mach Co Ltd | Original pressing plate opening/closing device |
| CN101021697A (en) * | 2006-02-13 | 2007-08-22 | 下西技研工业株式会社 | Open and close device for manuscript impaction plate |
-
2007
- 2007-12-13 CN CN200710195784A patent/CN101458471B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2589714Y2 (en) * | 1992-12-22 | 1999-02-03 | 加藤電機株式会社 | Opening / closing device for original cover |
| US6456365B1 (en) * | 1999-11-30 | 2002-09-24 | Katoh Electric Machinery Co., Ltd. | Original cover closer |
| JP2003295355A (en) * | 2002-04-03 | 2003-10-15 | Shimonishi Giken Kogyo Kk | Opening and closing apparatus for original press-contact plate |
| JP2006133532A (en) * | 2004-11-05 | 2006-05-25 | Kato Electrical Mach Co Ltd | Original pressing plate opening/closing device |
| CN101021697A (en) * | 2006-02-13 | 2007-08-22 | 下西技研工业株式会社 | Open and close device for manuscript impaction plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101458471A (en) | 2009-06-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20171213 |