Pressurization device and pressurization processing device using the pressurization device

Abstract

This invention provides a pressurizing device and a pressurizing processing apparatus using this pressurizing device, which, when driving a pair of pressurizing elements with contactable / separable structures into contact, can suppress variations in the contact pressure distribution in the contact area between the pair of pressurizing elements even if the pressurizing elements generate a driving reaction force. The pressurizing device includes: a first pressurizing element; a second pressurizing element; a contact / separation member that causes the second pressurizing element to contact / separate relative to the first pressurizing element between a contact position and a retracted position; a force-applying member that applies force to the first pressurizing element toward the second pressurizing element; and a driving member that applies a driving force to the second pressurizing element, causing the first pressurizing element to be driven. The contact / separation member has a moving element that moves the second pressurizing element toward the first pressurizing element, and the driving member applies a driving force in the direction in which the second pressurizing element is pressed toward the moving element.

Description

Technical Field

[0001] The present invention relates to a pressurizing device and a pressurizing processing apparatus using the pressurizing device. Background Technology

[0002] Previously, such a pressurizing device was known, for example, as described in Patent Document 1.

[0003] Patent Document 1 discloses a fixing device having a heating section and a pressurizing section. The heating section has a pressing member on the inner surface of a seamless belt heated by a heating source. The pressurizing section has a roller member that receives a medium between itself and the seamless belt, a pressurizing mechanism that pressurizes the roller member, and a moving mechanism that moves the position of the roller member to change the pressing pressure distribution in the clamping area where the medium is clamped.

[0004] [Existing Technical Documents]

[0005] [Patent Literature]

[0006] Patent Document 1: Japanese Patent Application Publication No. 2013-186304 (Detailed Embodiments) Figure 4 ) Summary of the Invention

[0007] [The problem the invention aims to solve]

[0008] The technical problem to be solved by the present invention is to provide a pressurizing device and a pressurizing processing apparatus using the pressurizing device, wherein the pressurizing device is configured to include a pair of pressurizing elements that can be contacted / separated, and when the pair of pressurizing elements are brought into contact and driven, even if the pressurizing elements generate a driving reaction force, the change in the contact pressure distribution in the contact area between the pair of pressurizing elements can be suppressed.

[0009] [Technical means to solve the problem]

[0010] The invention of technical solution 1 is a pressurizing device, comprising: a first pressurizing element; a second pressurizing element disposed opposite to the first pressurizing element, which pressurizes a medium sandwiched between the second and first pressurizing elements; a contact / separation member that causes the second pressurizing element to contact / separate relative to the first pressurizing element between a contact position and a retraction position; a force-applying member that applies force to the first pressurizing element toward the second pressurizing element when the second pressurizing element is in the contact position; and a driving member that provides a driving force to the second pressurizing element and drives the first pressurizing element when the second pressurizing element is in the contact position. The contact / separation member has a moving element disposed on the side of the second pressurizing element opposite to the contact area of ​​the first and second pressurizing elements, causing the second pressurizing element to move toward the first pressurizing element. The driving member provides the driving force in the direction in which the second pressurizing element is pressed toward the moving element.

[0011] The invention of technical solution 2 is based on the pressurizing device of technical solution 1, wherein the first pressurizing element is heated by a heating source.

[0012] The invention of technical solution 3 is based on the pressurizing device of technical solution 2, wherein the first pressurizing element uses a heat source to heat the seamless belt member, and an opposing member is provided on the back side of the belt member opposite to the second pressurizing element.

[0013] The invention of technical solution 4 is a pressurizing device according to any one of technical solutions 1 to 3, wherein the force-applying component applies an elastic force to the first pressurizing element due to compression deformation.

[0014] The invention of technical solution 5 is based on the pressurizing device of technical solution 4, wherein the first pressurizing element is able to retract within a range of less contact / separation than the second pressurizing element.

[0015] The invention of technical solution 6 is a pressurizing device according to any one of technical solutions 1 to 5, wherein the moving element of the contact / separation component has: a swing member configured to swing about a swing fulcrum, which moves the second pressurizing element in the supported portion of the second pressurizing element to make it contact / separate; and a displacement member that displaces the swing member in a manner that swings within a predetermined range.

[0016] The invention of technical solution 7 is based on the pressurizing device of technical solution 6, wherein the displacement member is an eccentric rotating member.

[0017] The invention of technical solution 8 is based on the pressurizing device of technical solution 7, wherein the swinging member has a cam follower at the contact portion with the eccentric rotating member.

[0018] The invention of technical solution 9 is a pressurizing device according to any one of technical solutions 1 to 8, wherein the point of application of the driving force of the driving component on the second pressurizing element is located upstream of the rotation direction of the second pressurizing element, and downstream of the contact area between the first pressurizing element and the second pressurizing element, compared with the support point of the moving element of the contact / separation component on the second pressurizing element.

[0019] The invention of technical solution 10 is based on the pressurizing device of technical solution 9, wherein the driving component has a drive transmission system at the point of application of the driving force on the second pressurizing element, and the drive transmission system provides a driving force in the direction that causes the second pressurizing element to leave the contact area.

[0020] The invention of technical solution 11 is based on the pressurizing device of technical solution 10, wherein the moving element of the contact / separation component has a swing member, the swing member is configured to swing about a swing fulcrum, and the second pressurizing element is moved by the supported part of the second pressurizing element to make it contact / separate, and the swing fulcrum of the swing member is coaxially arranged with the driving fulcrum of the driving component.

[0021] The invention of technical solution 12 is a pressurization processing device, comprising: a processing component for applying a pressurized material to a medium; and a pressurization device of any one of technical solutions 1 to 11 for pressurizing the pressurized material on the medium.

[0022] [The effects of the invention]

[0023] According to the invention of technical solution 1, in the configuration including a pair of pressurizing elements with contactable / separable structures, when the pressurizing elements of the pair structures are brought into contact and driven, even if the pressurizing elements generate a driving reaction force, the variation of the contact pressure distribution in the contact area between the pressurizing elements of the pair structures can be suppressed.

[0024] According to the invention of technical solution 2, it is possible to heat and pressurize the pressurized material on the medium at the same time.

[0025] According to the invention of technical solution 3, even if the first pressurizing element has many auxiliary parts, it is not necessary to make the first pressurizing element contact / separate, thereby suppressing the impact on the auxiliary parts during contact / separation.

[0026] According to the invention of technical solution 4, compared with the method of applying elastic force by stretching deformation, the device structure can be miniaturized.

[0027] According to the invention of technical solution 5, it is possible to suppress the applied force from the force-applying component and reduce the torque during driving.

[0028] According to the invention of technical solution 6, a representative form of a moving element for contacting / separating components can be easily constructed.

[0029] According to the invention of technical solution 7, it is possible to easily construct a displacement member that causes the swinging member to move.

[0030] According to the invention of technical solution 8, compared with the case of no cam follower, the contact resistance between the swing member and the displacement member can be reduced.

[0031] According to the invention of technical solution 9, the second pressure element can be pressed toward the moving element side of the contact / separation component, thereby appropriately suppressing the situation where the driving reaction force acts on the contact area between the first pressure element and the second pressure element.

[0032] According to the invention of technical solution 10, the driving force from the driving component can be appropriately transmitted to the second pressurizing element.

[0033] According to the invention of technical solution 11, compared with the configuration where the swing fulcrum of the swing member and the drive fulcrum of the drive member are non-coaxial, the installation space can be suppressed when the contact / separation member and the drive member are provided relative to the second pressurizing element.

[0034] According to the invention of technical solution 12, a pressurization processing apparatus comprising a pressurization device is constructed, wherein the pressurization device comprises a pair of pressurization elements that can be contacted / separated, and when the pair of pressurization elements are brought into contact and driven, even if the pressurization elements generate a driving reaction force, the variation of the contact pressure distribution in the contact area between the pair of pressurization elements can be suppressed. Attached Figure Description

[0035] Figure 1 (a) is an explanatory diagram showing a summary of an embodiment of the pressurization treatment apparatus to which the present invention is applied. Figure 1 (b) indicates that in Figure 1 An explanatory diagram of the main parts of the pressurizing device used in the pressurizing treatment device of (a).

[0036] Figure 2 This is an explanatory diagram showing an example of an image forming apparatus as a pressure processing apparatus in Embodiment 1.

[0037] Figure 3 This is an explanatory diagram showing an example of a fixing device used as a pressurizing device in Embodiment 1.

[0038] Figure 4 yes Figure 3 Explanation of the cross-section along line IV-IV in the diagram.

[0039] Figure 5This is an explanatory diagram showing the main parts of the contact / separation mechanism of the fixing device in Embodiment 1.

[0040] Figure 6 This is an explanatory diagram showing an example of the drive mechanism of the fixing device in Embodiment 1.

[0041] Figure 7 This is an explanatory diagram showing a modified form 1 of the fixing device according to Embodiment 1.

[0042] Figure 8 This is an explanatory diagram showing a modified form 2 of the fixing device according to Embodiment 1.

[0043] Figure 9 This is an explanatory diagram showing the main parts of the fixing device in Comparative Form 1.

[0044] Figure 10 (a) is an explanatory diagram showing an example of the drive mechanism of the fixing device in comparative form 1. Figure 10 (b) is an explanatory diagram showing an example of the nip pressure distribution along the long side in the contact area of ​​the fixing device.

[0045] Figure 11 This is an explanatory diagram showing the main parts of the fixing device in Comparative Form 2.

[0046] Figure 12 This is an explanatory diagram showing an example of an inkjet device as a pressure processing apparatus in Embodiment 2.

[0047] [Explanation of reference numerals in the attached figures]

[0048] 1: Pressurization device

[0049] 2: First pressurizing element

[0050] 2a: with components

[0051] 2b: Heating source

[0052] 2c: Opposing components

[0053] 3: Second pressurizing element

[0054] 4: Contact / Separation Components

[0055] 5: Moving components

[0056] 5a: Oscillating component

[0057] 5b: Displacement member

[0058] 6: Force-applying components

[0059] 7: Drive components

[0060] 7a: Drive transmission system

[0061] 8: Processing components

[0062] 9: The pressurized object

[0063] CN: Contact Area

[0064] S: Medium Detailed Implementation

[0065] ◎Summary of Implementation Methods

[0066] Figure 1 (a) is an explanatory diagram showing a summary of an embodiment of the pressurization processing apparatus to which the present invention is applied.

[0067] In this figure, the pressurization processing device includes: a processing component 8, which applies the pressurized material 9 to the medium S; and a pressurization device 1, which pressurizes the pressurized material 9 on the medium S.

[0068] And, as Figure 1 As shown in (b), the pressurizing device 1 includes: a first pressurizing element 2; a second pressurizing element 3, disposed opposite to the first pressurizing element 2, which pressurizes the medium S by clamping it between the second and first pressurizing elements 2; a contact / separation member 4, which contacts / separates the second pressurizing element 3 relative to the first pressurizing element 2 between a contact position and a retraction position; a force-applying member 6, which applies force to the first pressurizing element 2 toward the second pressurizing element 3 when the second pressurizing element 3 is in the contact position; and a drive member 7, which provides a driving force to the second pressurizing element 3 and drives the first pressurizing element 2 when the second pressurizing element 3 is in the contact position. The contact / separation member 4 has a moving element 5, which is disposed on the side of the second pressurizing element 3 opposite to the contact area CN of the first and second pressurizing elements 2, so that the second pressurizing element 3 moves toward the first pressurizing element 2. The drive member 7 provides a driving force in the direction in which the second pressurizing element 3 is pressed toward the moving element 5.

[0069] In this technical means, the paired pressure elements 2 and 3 are not limited to the combination of seamless belt components and roller components, but also include those that are all roller components.

[0070] Furthermore, regarding the contact / separation component 4, it is sufficient to have a movable element 5 that causes the second pressurizing element 3 to contact / separate relative to the first pressurizing element 2.

[0071] Furthermore, the force-applying component 6 is necessary to maintain the contact pressure in the contact area CN between the first pressure-applying element 2 and the second pressure-applying element 3, and does not include a component that applies force to the second pressure-applying element 3, but is intended to apply force to the first pressure-applying element 2.

[0072] Furthermore, the driving component 7 only needs to be a component that applies driving force to the second pressing element 3 to press the second pressing element 3 toward the moving element 5 side, thereby avoiding the driving reaction force acting on the contact area CN between the first pressing element 2 and the second pressing element 3.

[0073] Next, a representative or preferred form of the pressurization device of this embodiment will be described.

[0074] First, as a representative form of the pressurizing device 1, we will describe a form in which the first pressurizing element 2 is heated by the heating source 2b. This example focuses on a device that applies heat while simultaneously applying pressure, and is not limited to the form in which the first pressurizing element 2 includes the heating source 2b, but also includes forms in which the second pressurizing element 3 includes a heating source (not shown).

[0075] Furthermore, as the first pressurizing element 2, as a form with many auxiliary parts including the heating source 2b, the following forms can be listed: the heating source 2b is used to heat the seamless belt member 2a, and an opposing member 2c is provided on the back side of the belt member 2a facing the second pressurizing element 3.

[0076] Furthermore, as a preferred form of the force-applying component 6, considering the viewpoint of suppressing the installation space of the force-applying component 6, a form in which an elastic force is applied to the first pressure element 2 by compression deformation can be listed.

[0077] Furthermore, as a preferred configuration for suppressing the applied force from the force-applying component 6, a configuration in which the first pressure-applying element 2 can retreat within a smaller range than the contact / separation amount of the second pressure-applying element 3 can be cited.

[0078] Furthermore, as a preferred form of the contact / separation component 4, the following forms can be listed, namely, the moving element 5 has: a swing member 5a, which is configured to swing about a swing fulcrum, and moves the second pressure element 3 to contact / separate it from the supported part of the second pressure element 3; and a displacement member 5b, which displaces the swing member 5a in a manner that swings within a predetermined range.

[0079] In this example, the oscillating member 5a can either contain a single functional member or be appropriately designed to connect two functional members that can oscillate relative to a common or different oscillation fulcrum via a spring member. Furthermore, the displacement member 5b is typically in the form of an eccentric rotating member (cam member), but considering the viewpoint of reducing contact resistance with the oscillating member 5a, it is preferable that the oscillating member 5a has a cam follower in the contact portion with the eccentric rotating member (cam member).

[0080] Furthermore, as a representative form of the drive component 7, the following form can be cited: the point of application of the driving force to the second pressurizing element 3 is located upstream of the rotation direction of the second pressurizing element 3, relative to the support point of the moving element 5 of the contact / separation component 4 on the second pressurizing element 3, and downstream of the rotation direction of the second pressurizing element 3, relative to the contact area CN between the first pressurizing element 2 and the second pressurizing element 3.

[0081] Here, as a preferred form of the driving component 7, it has a driving transmission system 7a (e.g., a driving transmission gear train) at the point of application of the driving force to the second pressurizing element 3, the driving transmission system 7a providing a driving force in the direction that causes the second pressurizing element 3 to leave the contact area CN.

[0082] A more preferred embodiment of this drive component 7 is that the moving element 5 has a swing member 5a, which is configured to swing about a swing fulcrum, and moves the second pressure element 3 to contact / separate it from the supported portion of the second pressure element 3. The swing fulcrum of the swing member 5a is coaxially arranged with the drive fulcrum of the drive component 7. In this example, it is preferable that the space where the contact / separation component 4 and the drive component 7 are provided is partially shared.

[0083] The present invention will now be described in more detail based on the embodiments shown in the accompanying drawings.

[0084] ◎Implementation Method 1

[0085] -Overall structure of the image forming apparatus-

[0086] Figure 2 This illustrates the overall structure of an image forming apparatus, which is an example of a pressure processing device according to Embodiment 1.

[0087] In this figure, the image forming apparatus 20 has an imaging engine 22, for example, for creating images of multiple color components, mounted inside the apparatus frame 21. Below the imaging engine 22 is a paper supply container 23 (a section of the structure is shown in this example) for supplying paper as a medium. The paper supplied from the paper supply container 23 is transported by a paper transport path 24 extending in a generally vertical direction. After the image created by the imaging engine 22 is transferred by a uniform transfer device 25, the image transferred to the paper is fixed by a fixing device 26, which is an example of a pressure device. The paper after the image is fixed is discharged to a paper discharge tray 27, for example, provided at the top of the apparatus frame 21.

[0088] -Imaging Engine-

[0089] In this example, the imaging engine 22 has multiple imaging units 30 (specifically 30a to 30d) that use an electrophotographic method and contain toners of multiple color components (Y (yellow), M (magenta), C (cyan), and K (black) in this example). After the images of each color component produced by each imaging unit 30 are transferred to the intermediate transfer body 40 in one step, the unified transfer device 25 is used to uniformly transfer (secondary transfer) the images on the intermediate transfer body 40 to the paper.

[0090] In this example, the imaging unit 30 (30a-30d) has, for example, a drum-shaped photoreceptor 31. Around the photoreceptor 31, there are sequentially arranged a charging device 32 for charging the photoreceptor 31, a latent image writing device 33 for forming an electrostatic latent image on the charged photoreceptor 31, a developing device 34 for developing the electrostatic latent image formed on the photoreceptor 31 using toner of various color components, a primary transfer device 35 provided on the back side of the intermediate transfer body 40 facing the photoreceptor 31 for transferring the image on the photoreceptor 31 to the intermediate transfer body 40 in one step, and a cleaning device 36 for cleaning the toner remaining on the photoreceptor 31 after the primary transfer.

[0091] Furthermore, in this example, the latent image writing device 33 uses a device that writes to each imaging unit 30 separately using, for example, an array of light-emitting diodes (LEDs). However, it is not limited to this. A common laser scanning device that writes electrostatic latent images of each color component to each imaging unit 30 using a corresponding laser can also be provided, or laser scanning devices can be provided independently. Moreover, reference numerals 37 (specifically 37a to 37d) are toner cartridges that replenish the toner of each color component to each developing device 34 of each imaging unit 30 (30a to 30d).

[0092] Furthermore, in this example, the intermediate transfer body 40 includes, for example, a strip-shaped member mounted on a plurality of tension rollers 41 to 44. For example, the tension roller 41 is driven as a drive roller and can be cyclically rotated in a predetermined direction. Moreover, the tension roller 43 functions as a tension roller that imparts the required tension to the intermediate transfer body 40.

[0093] Additionally, symbol 47 refers to an intermediate transfer body cleaning device for cleaning residues (toner or paper dust, etc.) on the intermediate transfer body 40.

[0094] Furthermore, in this example, the uniform transfer device 25 has a transfer roller 25a that can be rotatably contacted to the surface of the intermediate transfer body 40. The tension roller 42 of the intermediate transfer body 40 is used as the opposing electrode. By forming the required transfer electric field between the transfer roller 25a and the opposing electrode, the image held on the intermediate transfer body 40 is uniformly transferred to the paper.

[0095] Furthermore, on the inlet side of the unified transfer device 25 in the paper conveying path 24, there is an alignment roller 28 for aligning the paper fed into the unified transfer device 25, and a discharge roller 29 is provided directly in front of the paper discharge receiving tray 27 in the paper conveying path 24.

[0096] -The overall structure of the fixing device-

[0097] In this embodiment, the fixing device 26 adds a heating function to the first pressure element, and carries the paper between itself and the second pressure element to heat and pressurize the unfixed image transferred onto the paper to perform fixing.

[0098] In this example, as the first pressure element, such as Figure 2 and Figure 3 As shown, for example, a pressure element comprising the following components is used: a heated fixing belt 61 having a heating layer that employs a so-called induction heating method, which generates heat through the action of a magnetic field; a magnetic field generator 63 configured with a predetermined gap relative to the outer peripheral surface of the heated fixing belt 61 to generate a magnetic field to heat the heated fixing belt 61; and a pressing pad 65 configured on the back side of the portion of the heated fixing belt 61 facing the second pressure element to press the heated fixing belt 61 toward the second pressure element side.

[0099] On the other hand, as a second pressure element, such as Figure 2 and Figure 3 As shown, a pressure fixing roller 62 is used, which is positioned opposite to the pressing pad 65 in the heating fixing belt 61, and clamps and feeds the paper between itself and the heating fixing belt 61.

[0100] <Fixing heating belt & fixing pressure roller>

[0101] In this example, the heating fixing tape 61 has a seamless tape member, which is at least wider than the width of the paper. Furthermore, the tape member is configured as a multilayer structure, for example, a base layer, a conductive layer made of a non-magnetic metal (functioning as a heating layer), an elastic layer, and a surface layer.

[0102] Furthermore, the pressure fixing roller 62 is a component with a roller body 622 containing an elastomer around the rotating shaft 621.

[0103] <Magnetic Field Generator>

[0104] In this example, the magnetic field generator 63 has a pedestal portion 631 that surrounds a roughly half-circumference portion of the outer peripheral surface of the heating and fixing belt 61 located on the opposite side to the pressure fixing roller 62. The pedestal portion 631 is formed as a cross-sectional arc shape extending along the width direction of the heating and fixing belt 61. A coil support portion 632 is provided in the pedestal portion 631, which is coiled along the width direction of the heating and fixing belt 61. An excitation coil 633 with a winding structure is held in the coil support portion 632.

[0105] Furthermore, in this example, on the outside of the magnetic field generator 63, specifically on the back side of the excitation coil 633 in the pedestal portion 631 (corresponding to the side opposite to the heating and fixing belt 61) and on the inside side of the heating and fixing belt 61 facing the magnetic field generator 63, magnetic field holding members 64 (specifically 64a and 64b) are respectively provided. The magnetic field holding members 64 (64a and 64b) contain magnetic materials (such as ferrite) and are formed in a generally arc-shaped cross-section along the shape of the pedestal portion 631. They enclose the heating and fixing belt 61 from the outside and inside, maintaining the magnetic field generated by the excitation coil 633 to form the required magnetic circuit, thereby improving the heating efficiency of electromagnetic induction.

[0106] <Press pad perimeter structure>

[0107] Furthermore, a pad support member 66 is disposed within the heating and fixing belt 61 facing the pressure fixing roller 62 to support the pressing pad 65. The pad support member 66 is formed into a rod shape extending along the width direction of the heating and fixing belt 61. The pressing pad 65 is supported on the part of the pad support member 66 facing the pressure fixing roller 62, pressing the heating and fixing belt 61 relative to the pressure fixing roller 62. Between the pressure fixing roller 62 and the heating and fixing belt 61, the paper S is clamped and transported with a predetermined contact area CN, and the image on the paper S is fixed.

[0108] In addition, in this example, the pad support member 66 is provided with a support bracket 67 that supports the magnetic field holding member 64 (64b) located in the heating fixing belt 61.

[0109] -Support structure of the fixing device-

[0110] <Support structure for heated fixing belt>

[0111] In this embodiment, the supporting structure for the heated fixing belt 61 is, for example... Figure 4 As shown, the pad support member 66 and the magnetic field generator 63 are held on both sides of the width direction intersecting the movement direction of the heating fixing belt 61 by a pair of holders 68, and are integrated as a first pressure element.

[0112] In particular, in this example, the paired support structure 68, such as Figure 4 and Figure 5 As shown, a support arm 681 is provided that can swing with a predetermined fulcrum P1 as the swing fulcrum, and a coil-shaped force-applying spring 69 applies force to the heating and fixing belt 61 toward the pressure fixing roller 62 side. The heating and fixing belt 61 is retractably configured relative to a predetermined initial position.

[0113] Here, each component of the fixing device 26 is housed within the fixing frame 261. For example, a retaining pin 262 is fixedly provided on a portion of the fixing frame 261, and a force spring 69 is positioned to the retaining pin 262. One end of the force spring 69 is hooked to the base end of the retaining pin 262, while the other end of the compressed force spring 69 is hooked to a hook plate 682 formed on a portion of the support arm 681. Thus, by the elastic restoring force of the force spring 69, the device swings about the fulcrum P1 along... Figure 5 A counterclockwise force is applied to the support arm 681, causing the stop protrusion 683 formed on a part of the support arm 681 to abut against the stop wall 263 formed on a part of the fixing frame 261, thereby determining the initial position of the heated fixing belt 61.

[0114] In addition, in this example, the fulcrum P1 is as follows: Figure 5 As shown, the area CN is located between the contact area CN of the heated fixing belt 61 and the pressure fixing roller 62 and the center of the rotation axis 621 of the pressure fixing roller 62, and is the area on the paper entry side.

[0115] <Support structure of pressure fixing roller>

[0116] On the other hand, the pressure fixing roller 62, as Figure 4 As shown, a structure is adopted in which the two ends of the rotating shaft 621 of the roller body 622 are rotatably supported by bearing parts 71 and 72.

[0117] In this example, one of the bearing parts 71 located on the inner side of the device frame 21 (Rr side in the figure) is positioned at a predetermined location, and the other bearing part 72 located on the front side of the device frame 21 (Ft side in the figure) is movably supported by the contact / separation mechanism 80.

[0118] Here, the contact / separation mechanism 80 uses the support portion formed by one of the bearing parts 71 of the pressure fixing roller 62 as the swing fulcrum P0, causing the support portion formed by the other bearing part 72 of the pressure fixing roller 62 to move along a cross direction that intersects the rotation axis direction (in this example, equivalent to...). Figure 4The pressure fixing roller 62 moves in the direction of the arrow Z in the up and down direction, and between the contact position where it contacts the heating fixing belt 61 in the initial position and the retraction position where it retracts from the contact position, so that the pressure fixing roller 62 contacts / separates from the heating fixing belt 61.

[0119] In this example, the contact / separation mechanism 80 can release the contact between the heating fuser belt 61 and the pressure fuser roller 62 when paper jam occurs in the contact area CN of the fuser unit 26, making the jam removal operation possible. In addition, for example, when the fuser unit 26 is started, the pressure fuser roller 62 can be temporarily retracted from the heating fuser belt 61 to the retracted position to eliminate heat conduction to the pressure fuser roller 62, thereby effectively heating only the heating fuser belt 61.

[0120] Furthermore, details regarding the contact / separation mechanism 80 will be described later.

[0121] -Drive system for fixing unit-

[0122] In this example, the fixing device 26 is as follows: Figure 4 As shown, a drive mechanism 90 is connected to the inner end of the rotating shaft 621 of the pressure fixing roller 62.

[0123] Here, the drive mechanism 90 is configured such that the driven transmission gear 93 is coaxially connected to the end of the rotating shaft 621 of the pressure fixing roller 62, and the driving force from the drive motor 91 is transmitted to the driven transmission gear 93 via a drive transmission mechanism 92 such as a predetermined drive transmission gear train.

[0124] In this example, the drive mechanism 90 is a mechanism that drives the pressure fixing roller 62 to rotate. When the pressure fixing roller 62 is positioned in the contact position using the contact / separation mechanism 80, the heating fixing belt 61 that contacts the pressure fixing roller 62 is rotated passively.

[0125] -Control system of the fixing device-

[0126] In this example, in the fixing device 26, such as Figure 4As shown, a control device 100 is connected, which includes a microcomputer, such as a processor (Central Processing Unit, CPU), read-only memory (ROM), random access memory (RAM), and input / output (I / O) ports. The microcomputer sends control signals to the contact / separation mechanism 80 and the drive mechanism 90 according to the imaging program pre-installed in the processor, so as to control the contact / separation action of the contact / separation mechanism 80 and the drive action of the drive mechanism 90.

[0127] Here, the timing for starting the drive of the drive mechanism 90 can be appropriately selected, either after the pressure fixing roller 62 has been moved to the contact position by the contact / separation mechanism 80, or before the pressure fixing roller 62 has reached the contact position.

[0128] Furthermore, as a temperature control system for the fixing device 26, a temperature sensor (not shown) is provided at an appropriate location on the inner circumferential surface of the heating fixing belt 61, either in contact or without contact. The temperature sensor is used to detect the temperature of the heating fixing belt 61, and the control device 100 controls the magnetic field generator 63 to generate a magnetic field based on the detection information from the temperature sensor, thereby controlling the temperature of the heating fixing belt 61.

[0129] -Structural Example of a Contact / Separation Mechanism-

[0130] Figure 5 An example of the structure of the contact / separation mechanism 80 installed in the fixing device 26 will be described.

[0131] In this figure, the contact / separation mechanism 80 has: a first support arm 81 that swings with a predetermined fulcrum P2 (in this example, a fulcrum coaxial with the fulcrum P1 of the support arm 681) as the swing fulcrum; and a second support arm 82 that swings with the same fulcrum P2 as the first support arm 81 as the swing fulcrum.

[0132] In this example, the first support arm 81 includes an arm member 811 that surrounds the bearing part 72 of the pressure fixing roller 62, which is located on the opposite side of the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62, in a generally L-shape from the fulcrum P2. A cam member 83, which serves as an eccentric rotation member, is provided in the arm member 811 on the opposite side of the bearing part 72. A cam follower 84 containing a rotating roller is provided in the arm member 811 corresponding to the cam member 83.

[0133] Furthermore, the second support arm 82 includes an arm member 821, which surrounds the bearing part 72 of the pressure fixing roller 62 in a generally C-shape from the fulcrum P2 toward the side opposite to the contact area CN of the heating fixing belt 61 and the pressure fixing roller 62. On the side of the arm member 821 facing the bearing part 72, a recess 822 is formed to enclose the bearing part 72. Moreover, a nip spring 85 is positioned between the front end bend of the arm member 821 and the front end bend of the arm member 811 of the first support arm 81 in a compressed and deformed state. Furthermore, a nip screw 86 is used to connect the front end bends of the respective arm members 811 and 821, to position and retain the nip spring 85, and to limit the maximum span between the front end bends of the arm members 811 and 821.

[0134] -Selection of the driving point of the drive mechanism-

[0135] In the drive mechanism 90 of this example, such as Figure 6 As shown, the driving force of the drive motor 91 is transmitted to the driven transmission gear 93 of the pressure fixing roller 62 via the drive transmission mechanism 92. However, the meshing position Q between the drive transmission gear 92a and the driven transmission gear 93 in the final stage of the drive transmission mechanism 92 is selected so that the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62 is downstream of the rotation direction of the pressure fixing roller 62, and the contact area between the recess 822 of the second support arm 82 of the contact / separation mechanism 80 and the bearing part 72 is upstream of the rotation direction of the pressure fixing roller 62.

[0136] in addition, Figure 6 In the middle, it is shown schematically. Figure 5 The main part of the contact / separation mechanism 80 shown.

[0137] -Operation of the fixing device-

[0138] <Contact / Separation Action of the Fixing Unit>

[0139] First, the contact / separation operation of the fixing device 26 will be explained.

[0140] When driving the fixing device 26, the pressure fixing roller 62 must be moved to the contact position relative to the heating fixing belt 61 to form a contact area CN with a predetermined contact pressure between the heating fixing belt 61 and the pressure fixing roller 62.

[0141] At this time, in the contact / separation mechanism 80, such as Figure 5 and Figure 6As shown, a drive motor (not shown) causes the cam member 83 to rotate in a direction that increases in distance from the center of the cam member 83 to the cam follower 84, and stops at a predetermined length. In this state, the first support arm 81, via the cam member 83 and the cam follower 84, swings towards the heating and fixing belt 61 with fulcrum P2 as the swing fulcrum. The swinging front end of the first support arm 81 then presses against the clamping spring 85 in the direction of compression, thus the clamping spring 85 presses against the swinging front end of the second support arm 82. At this time, the second support arm 82, with the bearing part 72 enclosed in the recess 822 of the arm member 821, presses against the heating and fixing belt 61, thus the bearing part 72 side of the pressure fixing roller 62 swings with one of the bearing parts 71 sides as the swing fulcrum and is positioned in contact, forming a contact area CN with the heating and fixing belt 61. At this time, the pressure fixing roller 62 is positioned at a predetermined contact position and contacts the heated fixing belt 61, which is subjected to force by the force spring 69. Therefore, in the contact area CN, the clamping load caused by the force applied by the force spring 69 is generated.

[0142] Furthermore, when the heating and fixing belt 61 reaches the temperature required for fixing, when the unfixed image on the paper S passes through the contact area CN between the heating and fixing belt 61 and the pressure fixing roller 62, the unfixed image on the paper S is heated and pressure is applied to fix it.

[0143] Furthermore, if paper blockage occurs in the contact area CN of the fixing device 26, the contact state (clamping state) between the heated fixing belt 61 and the pressure fixing roller 62 must be released.

[0144] At this time, in the contact / separation mechanism 80, the cam member 83 is rotated in a direction that shortens the distance from the center of the cam member 83 to the cam follower 84 by a drive motor (not shown), and stops at a position where a predetermined length has been reached. In this state, the first support arm 81 is pressed towards the cam member 83 by the elastic restoring force of the clamping spring 85 between the first support arm 81 and the second support arm 82. Simultaneously, the second support arm 82 is also stretched towards the cam member 83, and the bearing part 72 enclosed by the second support arm 82 moves away from the heating fixing belt 61, causing the pressure fixing roller 62 to retract to a predetermined retraction position. Furthermore, regarding the length of the clamping spring 85, since the maximum span is limited by the clamping screw 86, the clamping spring 85 will not be stretched beyond a certain point.

[0145] <Drive operation of the fixing device>

[0146] In this embodiment, the driving point of the driving mechanism 90 (equivalent to the engagement position Q) is as follows: Figure 6As shown, the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62 is selected to be downstream of the rotation direction of the pressure fixing roller 62, and upstream of the rotation direction of the pressure fixing roller 62, compared to the contact portion 822 of the second support arm 82 of the contact / separation mechanism 80 and the contact portion 72 of the bearing component 72. In this state, the driving reaction force F caused by the driving force applied by the drive mechanism 90 will act on the contact / separation mechanism 80, but in this example, the driving reaction force F is blocked by the cam member 83. Therefore, in this example, in the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62, only the clamping load formed by the force spring 69 is active, and no driving reaction force F is active. There is no need to worry about the clamping load in the contact area CN becoming unbalanced between the driving side of the pressure fixing roller 62 and the anti-driving side opposite to the driving side, and it remains stable throughout the entire long side of the contact area CN.

[0147] In this embodiment, the contact / separation mechanism 80 adopts a structure that makes the pressure fixing roller 62 contact / separate relative to the heating fixing belt 61. Therefore, compared with the method of making the heating fixing belt 61 contact / separate (comparative form 1), it is easier to ensure the amount of contact / separation between the heating fixing belt 61 and the pressure fixing roller 62.

[0148] Furthermore, in this embodiment, the heating fixing belt 61 is a structure in which the force spring 69 is compressed from the initial position to the clamping load position. Therefore, the clamping load in the contact area CN can be suppressed to a certain extent, and correspondingly, the torque when the pressure fixing roller 62 is driven can be suppressed to a low level.

[0149] Furthermore, in this embodiment, the heating fixing belt 61 is in the form of including multiple auxiliary parts. However, since the heating fixing belt 61 is not in a manner that causes contact / separation, there is little concern about causing a large impact on the auxiliary parts due to contact / separation of the heating fixing belt 61 with many auxiliary parts.

[0150] ◎Deformation Form 1

[0151] Figure 7 This is an explanatory diagram showing the main parts of the fixing device in the modified form 1.

[0152] In this figure, the basic structure of the fixing device 26 is roughly the same as that of Embodiment 1, but unlike Embodiment 1, the positions of the swing fulcrums of the first support arm 81 and the second support arm 82 have been changed. In addition, for the same components as in Embodiment 1, the same symbols are used as in Embodiment 1, and their detailed descriptions are omitted here.

[0153] In this example, the basic structure of the drive mechanism 90 is roughly the same as that of embodiment 1. The meshing position Q between the drive transmission gear 92a and the driven transmission gear 93 in the final stage of the drive transmission mechanism 92 is selected so that the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62 is downstream of the rotation direction of the pressure fixing roller 62, and the contact area between the recess 822 of the second support arm 82 of the contact / separation mechanism 80 and the bearing part 72 is upstream of the rotation direction of the pressure fixing roller 62.

[0154] Here, if the rotation fulcrum of the drive transmission gear 92a is assumed to be P3, then the swing fulcrum of the first support arm 81 and the second support arm 82 is set to be coaxial with the rotation fulcrum P3 of the drive transmission gear 92a.

[0155] According to this example, by setting the positions of the swing fulcrums of the first support arm 81 and the second support arm 82 of the contact / separation mechanism 80 and the rotation fulcrum P3 of the drive transmission gear 92a of the drive mechanism 90 to be coaxial, compared with the configuration where the two are set in different positions, the layout of each component of the contact / separation mechanism 80 and the drive mechanism 90 can achieve space saving.

[0156] In addition, although not shown in the figure, the fulcrum P1 of the support arm 681 of the heating fixing belt 61 and the rotation fulcrum P3 of the drive transmission gear 92a can be made coaxial.

[0157] ◎Deformation Form 2

[0158] Figure 8 This is an explanatory diagram showing the main parts of the fixing device in the modified form 2.

[0159] In this figure, the basic structure of the fixing device 26 is largely the same as that of Embodiment 1, but it includes a contact / separation mechanism 80 that differs from that of Embodiment 1. Furthermore, components that are the same as those in Embodiment 1 are labeled with the same symbols as in Embodiment 1, and their detailed descriptions are omitted here.

[0160] In this figure, the contact / separation mechanism 80 adopts a method of using one support arm 88 instead of two support arms (first support arm 81 and second support arm 82).

[0161] In this example, the support arm 88 includes an arm member 881, which surrounds the bearing part 72 of the pressure fixing roller 62 in a generally C-shape from the fulcrum P2 toward the side opposite to the contact area CN of the heating fixing belt 61 and the pressure fixing roller 62. A cam member 83 is provided in the arm member 881 at the part opposite to the bearing part 72. The arm member 881 corresponding to the cam member 83 is provided, for example, with a cam follower 84 containing a rotating roller.

[0162] Furthermore, a recess 882 is formed on the side of the arm member 881 facing the bearing part 72, which is enclosed in the bearing part 72. Moreover, the clamping spring 85 is spaced between the front end bend of the arm member 881 and a part of the fixing frame 261 in a compressed and deformed state. Furthermore, the front end bend of the arm member 881 and a part of the fixing frame 261 are connected by a clamping screw 86, which positions and holds the clamping spring 85 and limits the maximum span between the front end bend of the arm member 881 and a part 264 of the fixing frame 261.

[0163] In this example, compared to the contact / separation mechanism 80 of Embodiment 1, the clamping spring 85 applies a stronger force to the support arm 88, but otherwise its basic function is largely the same as that of Embodiment 1.

[0164] Furthermore, after evaluating the performance of the fixing device of Embodiment 1, it was compared with the fixing devices of Comparative Embodiment 1 and Comparative Embodiment 2.

[0165] ◎Comparison of Forms 1

[0166] Figure 9 This is an explanatory diagram showing the main parts of the fixing device in Comparative Form 1.

[0167] In this figure, the basic structure of the fixing device 26 is roughly the same as that of Embodiment 1, but it includes a contact / separation mechanism 80' that is different from that of Embodiment 1, and the driving point of the driving mechanism 90' (equivalent to the engagement position Q' described later) is also different from that of Embodiment 1.

[0168] In this figure, the pressure fixing roller 62 is fixedly set at a predetermined position.

[0169] On the other hand, in this example, a pair of contact / separation mechanisms 80' are provided on the side of the heating fixing belt 61.

[0170] Here, the contact / separation mechanism 80' causes the support arm 181 to protrude from the bracket 68 of the heated fixing belt 61, and the support arm 181 is pivotally supported relative to the fixing frame 261. Furthermore, a retaining pin 262 is fixedly provided on a portion of the fixing frame 261, and a clamping spring 182 is positioned to the retaining pin 262. One end of the clamping spring 182 is hooked to the base end of the retaining pin 262, while the other end of the compressed clamping spring 182 is hooked to a hook plate 682 formed on a portion of the bracket 68. Thus, the elastic restoring force of the clamping spring 182 allows the support arm 181 to pivot about its pivot point. Figure 9 Apply force in a counterclockwise direction.

[0171] Furthermore, the contact / separation mechanism 80' is provided with a cam member 183 as a rotational eccentric member in the paper outlet region of the bracket 68 in the fixing frame 261, and a cam follower 184, for example, containing a rotating roller, is provided in the bracket 68 opposite to it.

[0172] Moreover, the drive mechanism 90' is like Figure 10 As shown in (a), the driving force of the drive motor 91' is transmitted to the driven transmission gear 93' of the pressure fixing roller 62 via the drive transmission mechanism 92'. However, the meshing position Q' between the drive transmission gear 92a' and the driven transmission gear 93' in the final stage of the drive transmission mechanism 92' is set to a position upstream of the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62 in the rotation direction of the pressure fixing roller 62, and the transmission direction of the driving force is toward the contact area CN between the heating fixing belt 61 and the pressure fixing roller 62.

[0173] In this example, when the distance between the circumferential surface of the cam member 183 and the cam follower 184 is a predetermined short distance, the support 68 moves with the support arm 181 as the pivot point due to the force applied by the clamping spring 182, and the heated fixing belt 61 is positioned at the contact position that contacts the pressure fixing roller 62. Furthermore, when the distance between the circumferential surface of the cam member 183 and the cam follower 184 is a predetermined long distance, the cam member 183 further compresses and deforms the clamping spring 182 while swinging the support 68 clockwise, thereby positioning the heated fixing belt 61 at the retracted position that is retracted relative to the pressure fixing roller 62.

[0174] However, in this example, the amount of contact / separation between the heated fixing belt 61 and the pressure fixing roller 62 achieved by the cam mechanism (cam member 183, cam follower 184) is small, making it difficult to stably perform the contact / separation action between the heated fixing belt 61 and the pressure fixing roller 62.

[0175] Furthermore, if the contact / separation amount of the heating and fixing belt 61 is to be large, the clamping load of the clamping spring 182 will increase. Consequently, it will be difficult to reduce the torque when the pressure fixing roller 62 is driven, and the heating and fixing belt 61, which has many auxiliary parts, will be unable to withstand the impact accompanying the contact / separation action.

[0176] Furthermore, in this comparative embodiment, the driving reaction force F' generated by the driving mechanism 90' applying the driving force acts on the contact area CN between the heated fixing belt 61 and the pressure fixing roller 62. Therefore, in this example, for the contact area CN, in addition to the clamping load of the clamping spring 182, the driving reaction force F' also acts on the driving mechanism 90' side, such as... Figure 10As shown in (b), the clamping load in the contact area CN may become unbalanced between the drive side of the pressure fixing roller 62 and the reverse drive side which is opposite to the drive side.

[0177] ◎Comparison of Forms 2

[0178] Figure 11 This is an explanatory diagram showing the main parts of the fixing device in Comparative Form 2.

[0179] In this figure, the basic structure of the fixing device 26 is roughly the same as that of Embodiment 1, but it includes a contact / separation mechanism 80' that differs from that of Embodiment 1. Additionally, the drive mechanism 90' (see...) Figure 10 The driving point of action is roughly the same as that of comparison form 1.

[0180] In this example, the heated fixing belt 61 is fixedly positioned at a predetermined location.

[0181] On the other hand, the contact / separation mechanism 80' of the pressure fixing roller 62 is configured in a substantially similar manner to that in Embodiment 1.

[0182] In this comparative configuration, the heating and fixing belt 61 is fixedly mounted. The clamping load in the contact area CN between the heating and fixing belt 61 and the pressure fixing roller 62 directly affects the applied force of the clamping spring 85. Therefore, if the contact / separation amount of the contact / separation mechanism 80' is to be maximized, the clamping load of the clamping spring 85 will increase. Consequently, it will be difficult to reduce the torque when the pressure fixing roller 62 is driven.

[0183] Furthermore, in this comparative configuration, the driving reaction force F' generated by the driving mechanism 90' applying the driving force also acts on the contact area CN between the heated fixing belt 61 and the pressure fixing roller 62. Therefore, in this example, for the contact area CN, in addition to the clamping load of the clamping spring 85, the driving reaction force F' also acts on the driving mechanism 90' side, thus... Figure 10 As shown in (b), the clamping load in the contact area CN may become unbalanced between the drive side of the pressure fixing roller 62 and the reverse drive side which is opposite to the drive side.

[0184] ◎Implementation Method 2

[0185] Figure 12 This is an explanatory diagram showing the main parts of an inkjet printer as an example of the pressurization processing device in Embodiment 2.

[0186] In this figure, the inkjet printer 200 includes: an ink cartridge 201 containing printing ink, a printhead 202 with ink jet nozzles on its lower surface, and a platen 203 facing the printhead 202. The ink cartridge 201 and the platen 203 constitute the printing component. Furthermore, in this figure, symbol 206 represents a pair of conveyor rollers for transporting the transfer material 210, and symbol 207 represents an outlet for discharging the transfer material 210 after heat transfer is complete.

[0187] Furthermore, symbol 220 is a hot pressing device that serves as a pressure device, including a hot roller 221 and an impression roller 222 for transferring the ink of the hot stamp foil together with the foil layer to the transfer material 210.

[0188] Symbol 223 is a roller wound with thermal foil 230. The thermal foil 230 released from roller 223 is conveyed between printhead 202 and pressure plate 203, where ink-based pattern printing is performed. The patterned thermal foil 230 is sent to thermoforming device 220, where the foil layer and ink are transferred to the substrate 210 by thermoforming. 224 is a roller that winds the thermal foil 230 after the transfer is completed, and 225 and 226 are guide rollers that guide the thermal foil 230.

[0189] In addition to the parts mentioned above, the inkjet printer 200 also includes an ink carrier for holding the ink cartridge 201 and moving it back and forth, or a drive mechanism for driving the ink carrier, but their illustrations are omitted in this example.

[0190] When performing thermal transfer using the inkjet printer 200 as described above, a left-right reversed pattern of the desired pattern to be printed onto the transfer material 210 is created in a control device (not shown). When the pattern data is sent to the inkjet printer 200, the left-right reversed pattern is printed on the thermal foil 230 using ink ejected from the printhead 202 according to the pattern. The thermal foil 230, with the ink pattern printed in this way, is fed between the hot roller 221 and the impression roller 222 of the thermal bonding apparatus 220. Meanwhile, the transfer material 210 is conveyed to the thermal bonding apparatus 220 by the transfer roller 206 and overlapped onto the thermal foil 230. At the overlapped portion, thermal bonding is performed by the hot roller 221 and the impression roller 222. As a result, the ink printed on the heat transfer foil 230 softens and adheres to the substrate 210, and the foil layer of the heat transfer foil 230 is transferred to the substrate 210 together with the ink. The substrate 210 after heat transfer is completed is discharged from the discharge port 207, and the heat transfer foil 230 with the foil layer peeled off is wound onto the roller 224.

[0191] In this example, the present invention can be applied simply by using the hot roller 221 and the embossing roller 222 of the hot pressing device 220 as the first pressure element and the second pressure element, respectively.

[0192] In this example, the transfer material 210 is supplied to the heat-sealing device 220 via the conveyor roller 206. However, the transfer material 210 can also be manually placed on the heat-sealing device 220 each time a transfer is performed. Furthermore, the impression roller 222 can be configured to move vertically to adjust the gap between the heat roller 221 and the impression roller 222, thereby supporting transfer materials 210 of various thicknesses. In this example, the heat-sealing foil 230 is wound onto the roller 223 and pre-stored inside the inkjet printer 200. However, the heat-sealing foil 230 can also be supplied from outside the inkjet printer 200.

Claims

1. A pressurizing device, characterized in that, include: The first pressurizing element is retractably configured relative to a predetermined initial position; The second pressurizing element is disposed opposite to the first pressurizing element, and pressurizes the medium by sandwiching it between the two elements. The contact / separation component causes the second pressurizing element to contact / separate from the first pressurizing element located in the initial position between a contact position and a retraction position; The force-applying component applies force to the first pressure-applying element, which is in the initial position, towards the second pressure-applying element side when the second pressure-applying element is in the contact position. as well as The driving component applies a driving force to the second pressurizing element, causing the first pressurizing element to actuate when the second pressurizing element is in the contact position. The contact / separation component has a moving element located on the side of the second pressurizing element opposite to the contact area of ​​the first and second pressurizing elements, causing the second pressurizing element to move towards the first pressurizing element. The driving component applies the driving force in the direction in which the second pressing element is pressed toward the moving element.

2. The pressurizing device according to claim 1, characterized in that, The first pressurizing element is heated by a heating source.

3. The pressurizing device according to claim 2, characterized in that, The first pressurizing element includes a heating source, a seamless belt member, and an opposing member 2c. The heating source is used to heat the seamless belt member, and an opposing member is provided on the back side of the belt member facing the second pressurizing element.

4. The pressurizing device according to any one of claims 1 to 3, characterized in that, The force-applying component applies an elastic force to the first pressure-applying element due to compression deformation.

5. The pressurizing device according to claim 4, characterized in that, The first pressurizing element is able to retract by a smaller amount than the second pressurizing element in terms of contact / separation.

6. The pressurizing device according to any one of claims 1 to 5, characterized in that, The moving element of the contact / separation component includes: a swing member configured to swing about a swing fulcrum, which moves the second pressure element to contact / separate it in the supported portion of the second pressure element; and a displacement member that displaces the swing member in a manner that swings within a predetermined range.

7. The pressurizing device according to claim 6, characterized in that, The displacement component is an eccentric rotating component.

8. The pressurizing device according to claim 7, characterized in that, The oscillating member has a cam follower at the contact portion with the eccentric rotating member.

9. The pressurizing device according to any one of claims 1 to 8, characterized in that, The point of application of the driving force of the driving component on the second pressurizing element is located upstream of the rotation direction of the second pressurizing element, compared to the support point of the moving element of the contact / separation component on the second pressurizing element, and downstream of the rotation direction of the second pressurizing element, compared to the contact area between the first pressurizing element and the second pressurizing element.

10. The pressurizing device according to claim 9, characterized in that, The driving component has a driving transmission system at the point of application of the driving force to the second pressurizing element, the driving transmission system providing a driving force in the direction that causes the second pressurizing element to leave the contact area.

11. The pressurizing device according to claim 10, characterized in that, The moving element of the contact / separation component has a swing member that is configured to swing about a pivot point, and moves the second pressure element at the supported portion of the second pressure element to make it contact / separate. The swing fulcrum of the swing member is coaxially arranged with the driving fulcrum of the driving component.

12. A pressurized processing device, characterized in that, include: The processing unit applies the pressurized material to the medium; as well as The pressurizing device according to any one of claims 1 to 11 pressurizes the pressurized material on the medium.

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