Laminator

Abstract

To provide a laminator in which a biasing direction is hardly deviated from a set direction.SOLUTION: There is provided a laminator, comprising: a pair of pressure rollers 21 for applying pressure to a target sheet; and biasing means 24 for biasing one of a roller 21A of the pair of pressure rollers 21 against another roller 21B, wherein the biasing means 24 includes: a contact body 241 that contacts the one roller 21A from a side opposite to another roller 21B; and a biasing body 242 that biases the contact body 241 in a thickness direction of the target sheet passing through the pair of pressure rollers 21, and guide portions 77 and 78 facing the contact body 241 are provided on both sides of the contact body 241 in a passing direction of the target sheet passing through the pair of pressure rollers 21.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a laminator that heats and presses a target sheet obtained by sandwiching an object between laminate films in the thickness direction to form a laminate sheet. [Background technology]

[0002] Laminators that can be easily used at home have been proposed (for example, Patent Document 1). The laminator described in Patent Document 1 includes a pair of pressure rollers for applying pressure to a pressure-bonded sheet (target sheet) in which a laminate film and a laminated body (target object) are superimposed, and a biasing means for pressing one of the pair of pressure rollers against the other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-221536 A Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned laminator has a problem that the urging direction of the urging means may deviate from the set direction depending on the thickness of the target sheet. An object of the present invention is to provide a laminator in which the urging direction is less likely to deviate from the set direction. [Means for solving the problem]

[0005] The laminator of the present invention is a laminator comprising a pair of pressure rollers for pressurizing a target sheet, and a biasing means for biasing one of the pair of pressure rollers against the other roller, wherein the biasing means comprises a contact body which abuts against the one roller from the side opposite the other roller, and a biasing body which biases the contact body in the thickness direction of the target sheet as it passes through the pair of pressure rollers, and comprises guide portions facing the contact body on both sides of the contact body in the passing direction of the target sheet as it passes through the pair of pressure rollers. Effect of the Invention

[0006] According to the above-mentioned configuration, the biasing direction is unlikely to deviate from the set direction. [Brief description of the drawings]

[0007] [Figure 1] 1A and 1B are perspective views of a laminator, in which FIG. 1A is a view from above the insertion opening side, and FIG. 1B is a view from below the ejection opening side. [Diagram 2] 2 is a cross-sectional view perpendicular to a pair of pressure rollers in the center of the laminator. FIG. [Diagram 3] 1A is a view from above, in which the upper housing is removed, and FIG. 1B is a view in which the upper housing, the board, and the plate are removed. [Figure 4] FIG. 2 is a perspective view of the disassembled state of the laminator, viewed from above on the insertion opening side. [Diagram 5] FIG. 2 is a perspective view of the disassembled state of the laminator, seen from below on the discharge port side. [Figure 6] 1A and 1B are perspective views of a cross section of a laminator with the laminator unit and the like removed, seen from the insertion opening side, where (a) is a view from below and (b) is a view from above. [Figure 7] 1A and 1B are enlarged views of the area around the exhaust port, where (a) shows a cross section perpendicular to the left-right direction, and (b) is a view from the front. [Figure 8] 1A is a perspective view of the support plate as viewed from above on the discharge port side, and FIG. 1B is an enlarged view of the periphery of the biasing means in FIG. [Figure 9]1A is an enlarged view of the end of the upper roller as viewed from the left and right, and FIG. 1B is an enlarged view of the vicinity of the contact body, with the biasing means omitted in both views. [Figure 10] FIG. 4 is an enlarged cross-sectional view of a portion where the biasing means contacts the contact body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] <Embodiment> 1. Overall structure An overview will be given with reference to FIG. 1 and FIG. The laminator X heats and presses the target sheet, which is a target object sandwiched between laminate films in the thickness direction, to produce a laminate sheet. The target sheet is inserted by the user through the insertion port 8a and discharged from the discharge port 8b. The discharged sheet is the laminate sheet. The laminator X is provided with, in a housing 8, a heating and pressurizing means 1 which applies heat and pressure to an inserted target sheet, a discharge means 2 for discharging the heated and pressed target sheet from a discharge outlet 8b, a guide means 3 for guiding the target sheet inserted from the insertion port 8a so as to be discharged from the discharge outlet 8b, operation means 41, 42 for accepting operations from a user, a display means 43 for displaying the accepted operations and their contents, a power supply means for driving a drive unit of the device, and a control means for controlling the device. Here, the heating and pressurizing means 1, the discharge means 2, the guide means 3A and 3B, etc., which constitute the basic functions of the laminator, are supported by a pair of support plates 71 and unitized (see Figs. 4 and 5). This unitized structure is referred to as a laminator unit 99. The circuit constituting the power supply means and control means is formed by mounting a plurality of electronic components on a substrate. Here, as shown in (b) of FIG. 3, the power supply means and control means are formed by a first circuit section 51 having one or more electronic components 512 mounted on a first substrate 511, and a second circuit section 53 having one or more electronic components 532 mounted on a second substrate 531. Here, the path along which the target sheet moves is referred to as the movement path, the direction of movement is referred to as the movement direction or the front-to-back direction, the side where the insertion port 8a is located is referred to as the upstream side or the front side, the thickness direction of the target sheet is simply referred to as the thickness direction or the up-down direction, and the width direction of the target sheet, i.e., the direction perpendicular to the movement direction and thickness direction, is simply referred to as the width direction or the left-to-right direction. Each part will be explained below.

[0009] 2.Each part (1) Housing The housing 8 is made of resin such as ABS, and has a box shape that is long in the left-right direction as shown in Fig. 1. The housing 8 is mainly composed of a lower housing 81 and an upper housing 82. The upper housing 82 has a smaller vertical dimension than the lower housing 81, and the lower housing 81 constitutes a housing main body, and the upper housing 82 constitutes a cover. A laminator unit 99 is housed in the lower housing 81 across the left-right direction, and a first circuit section 51 and a second circuit section 53 are housed on both left-right sides of the laminator unit 99. The lower housing 81 has, below the discharge outlet 8b, an attachment portion 811a for removably attaching a tray (here, a wire tray) 89 for receiving the discharged laminate sheet, and an accommodation portion 811b for accommodating the wire tray 89.

[0010] 4, the lower housing 81 has a front cutout 814 on the front wall 81a and a rear cutout 815 on the rear wall 81b. The front cutout 814 and the rear cutout 815 are cut from top to bottom and extend in the left-right direction. An insertion opening side lower guide body 88 and an insertion opening side upper guide body 83 are disposed in the front cutout portion 814. The insertion opening side lower guide body 88 and the insertion opening side upper guide body 83 guide the target sheet inserted from the insertion opening 8a to the heating and pressurizing means 1 (to be precise, the upstream guiding means 3A). The insertion opening side lower guide body 88 is fixed to the lower housing 81, and the insertion opening side upper guide body 83 is fixed to the upper housing 82. A discharge outlet side upper guide body 84 is disposed in the rear cutout portion 814. The discharge outlet side upper guide body 84, together with the discharge outlet side lower guide portion 813c of the lower housing 81, guides the target sheet so as to be discharged from the discharge outlet 8b. The discharge outlet side upper guide body 84 is fixed to the upper housing 82.

[0011] As shown in Fig. 5 and Fig. 6, the lower housing 81 has a front recess 812 below the front notch 814 and on the back side (rear side) of the front wall 81a, and a rear recess 813 below the rear notch 815 and on the back side (front side) of the rear wall 81b. The front recess 812 and the rear recess 813 are recessed from the bottom to the top. Through holes 812a, 813a are formed in the front recess 812 and the rear recess 813. This allows communication between the outside and the inside of the housing 8. There are a plurality of through holes 812a, 813a. The through holes 812a, 813a here are formed on the inner side walls located on the inside of the front recess 812 and the rear recess 813. More specifically, the inner side walls have an uneven shape, and are formed on the side walls (walls perpendicular to the left-right direction) of the uneven shape. The outer side walls located on the outside of the front recess 812 and the rear recess 813 are the front wall 81a and the rear wall 81b of the lower housing 81. As shown in Fig. 6, an outlet-side lower guide portion 813c is formed on an upper wall (bottom in the recessed direction) 813b of the rear recessed portion 813. The outlet-side lower guide portion 813c is composed of an outlet-side lower rib portion (813c) perpendicular to the left-right direction, and the outlet-side lower rib portion (813c) is formed at equal or unequal intervals in the left-right direction. The outlet-side lower rib portion is also designated by the symbol "813c". The outlet-side lower guide portion 813c, together with the outlet-side upper guide body 84, guides the target sheet discharged from the discharge means 2 to the outlet 8b. Note that the outlet-side lower guide portion 813c only needs to be formed on at least the upper wall 813b of the rear recessed portion 813, and may be formed so as to straddle the inner wall of the rear recessed portion 813.

[0012] As shown in FIG. 4, the lower housing 81 has a first housing chamber 54 for the first circuit portion 51 and a second housing chamber 56 for the second circuit portion 53 on both left and right sides of the unit housing chamber 57 for the laminator unit 99. Here, the partition wall 816a partitions (partially partitions) the unit housing chamber 57 and the first housing chamber 54 so that they can communicate with each other, and the partition wall 816b partitions (including the case where the unit housing chamber 57 is completely partitioned and the case where the partition wall 816b is partially partitioned) the unit housing chamber 57 and the second housing chamber 56. The partition walls 816a and 816b are substantially perpendicular to the left-right direction and extend upward from the bottom wall of the lower housing 81. The partition walls 816a and 816b may be formed by a wall body separate from the lower housing 81, or may be formed integrally with the lower housing 81. The partition walls 816a and 816b have a function of suppressing the transfer of heat from the laminator unit 99 to the first circuit section 51 and the second circuit section 53, and in order to further suppress the heat, it is preferable to form the partition walls 816a and 816b separately from the lower housing 81 and use a material such as a mica plate.

[0013] 3(a), the upper housing 82 is provided with a board 45 for the operation means 42 and the display means 43. The upper housing 82 is provided with a plate 87 for preventing the upper housing 82 from being heated by the heat of the heating and pressurizing means 1 and for preventing the heat of the heating and pressurizing means 1 from flowing outward. The plate 87 is made of a mica plate or the like.

[0014] The insertion opening side upper guide body 83 and the ejection opening side upper guide body 84 are fixed to the upper housing 82 by screws or the like. 4 and 5, the insertion opening side upper guide body 83 has a main body 831 having a cross section shaped like the letter "T" or a shape similar thereto (having at least two perpendicular sides 831a, 831b), and an insertion opening side upper rib 831c formed across the two perpendicular sides 831a, 831b. The insertion opening side upper rib 831c is perpendicular to the left-right direction and is formed at equal or unequal intervals in the left-right direction. The lower end of the insertion opening side upper rib 831c and the insertion opening side lower guide body 88 attached to the lower housing 81 form the insertion opening 8a, as shown in FIG. In addition, in the cross section of the insertion port side upper guide body 83, side portion 831a is located on the upper side and extends in the front-to-rear direction, side portion 831b extends downward from the lower surface of side portion 831a, and an insertion port side upper rib portion 831c is formed on the surface facing the laminator unit 99 (the rear surface).

[0015] 6 and 7, the discharge port side upper guide body 84 has a main body 844 having a first wall portion 841 extending vertically and horizontally, a second wall portion 842 extending upward from the lower end of the first wall portion 841 toward the laminator unit 99, and a third wall portion 843 extending horizontally from the upper end of the second wall portion 842 toward the laminator unit 99, and a discharge port side upper rib portion 845 formed across the inner surface (front surface) of the second wall portion 842 and the lower surface of the third wall portion 843. In addition, the discharge port side upper guide body 84 has a "V"-shaped portion formed by the first wall portion 841 and the second wall portion 842 in a cross section. In addition, the first wall portion 841 is configured to be flush with the rear wall of the upper housing 82. The outlet side upper rib portions 845 are formed at equal or unequal intervals in the left-right direction and perpendicular to the left-right direction. The outlet side upper rib portions 845 are provided so as to be located between the outlet side lower rib portions 813c adjacent in the left-right direction. The outlet side upper rib portions 845 are provided at the center position between the outlet side lower rib portions 813c, at a position close to the center position, or at a position other than the center. The left-right distance between the left-right adjacent upper rib portion 845 and the lower rib portion 813c is preferably within a range of 0.65C to 2.15C, where "C" is the vertical distance between the upper rib portion 845 and the lower rib portion 813c shown in Fig. 7(b). This makes it possible to reduce the number of the upper rib portion 845 and the lower rib portion 813c, and to prevent a target sheet that has been deformed by heat or by factors other than heat from becoming clogged with the upper rib portion 845 or the lower rib portion 813c.

[0016] As shown in FIG. 2, the lower end of the outlet-side upper rib portion 845 and the upper end of the outlet-side lower rib portion 813c of the lower housing 81 form the outlet 8b. As shown in FIG. 6, the first wall portion 841 constitutes a part of the outer surface (rear surface) of the housing 8 and acts as an outer surface forming part. The second wall portion 842 is curved so that the lower side region protrudes downward in a cross section ((a) of FIG. 7) perpendicular to the left-right direction, and the region from the middle to the upper part is linear. That is, as shown in FIG. 7(a), the second wall portion 842 has a curved surface region 842a in the lower side region. As a result, even if the target sheet to be discharged is curved due to heat or other factors, the leading end of the target sheet is smoothly guided to the discharge port 8b by the curved surface region 842a. More specifically, the curved surface region 842a has a downwardly convex arc shape or a shape similar to an arc shape when viewed from the left-right direction. 7, the lower end of the discharge port side upper rib portion 845 has an inclined region 845a on the upstream side (discharge means 2 side) and a straight region 845b on the downstream side. The inclined region 845a is inclined so as to descend downward (so that the vertical space through which the target sheet passes becomes narrower) toward the downstream side. This allows the target sheet discharged from the discharge means 2 to be smoothly guided toward the discharge port 8b side.

[0017] This will be explained using Figure 7. If the rear surface of the first wall portion 841 (if the rear surface is inclined with respect to the vertical direction, it is an imaginary surface that passes through the upper end and extends in the vertical direction) is used as a reference, the distance between the rear surface and the front end of the second wall portion 842 is "A", and the distance between the rear surface and the front end face of the third wall portion 843 is "B", then 4A ≦ B ≦ 9A Satisfy the relationship. This makes it possible to reduce the amount of resin used to compose the housing 8 (the discharge port side upper guide body 84) and to gently and smoothly guide the target sheet. In addition, if the minimum vertical distance of the gap through which the target sheet passes is "C", then, 2C ≦ A ≦ 6C The following relationship is satisfied. An example of "C" is 2.3 mm.

[0018] If the distance from the rear surface of the first wall portion 841 (if the rear surface is inclined with respect to the vertical direction, it is an imaginary surface that passes through the upper end and extends in the vertical direction) to the boundary position between the inclined region 845a and the straight region 845b of the outlet side upper rib portion 845 is "D", 0.35B ≦ D ≦ 0.65B Satisfy the relationship. This allows the target seat to be guided gently and smoothly. If the dimension (thickness) in the left-right direction of the lower side of the outlet side upper rib portion 845 is "F" and the distance between the opposing faces of the multiple outlet side upper rib portions 845 is "E", then 10F ≦ E ≦ 17F Satisfy the relationship. This makes it possible to arrange an appropriate number of ribs for the target sheet while reducing the amount of resin used to configure the housing 8 (the discharge port side upper guide body 84). An example of F is 0.9 mm.

[0019] If the vertical dimension (maximum length) of the outlet side upper rib portion 845 is “G”, The relationship 7C ≦ G ≦ 15C is satisfied. If the distance from the lower end of the outlet side upper rib portion 845 to the lowest point of the first wall portion 841 (or the second wall portion 842) is “J”, 0.7C ≦ J ≦ 1.4C Satisfy the relationship. This allows the lower end to be effective against anticipated curvature, while reducing the amount of resin used to form the housing 8 (the outlet side upper guide body 84). If the distance from the lower surface of the third wall portion 843 (if the lower surface is inclined with respect to the front-rear direction, it is an imaginary surface that passes through the front end and extends in the front-rear direction) to the lower end position of the curved area 842a of the second wall portion 842 is "H", 1.05H≦G≦1.4H Satisfy the relationship. This allows the lower end to be effective against anticipated curvature, while reducing the amount of resin used to form the housing 8 (the outlet side upper guide body 84). The radius R2 (not shown) of the curved area 842a is 1.8C ≦ R2 ≦ 2.4C The following relationship is satisfied. An example of R2 is 7.0 mm.

[0020] (2) Heating and pressurizing means The heating and pressurizing means 1 heats and presses the pair of laminate films of the target sheet, thereby welding the overlapping portions (peripheral edges) of the pair of laminate films. 2, the heating and pressing means 1 at least includes a pair of pressure rollers 11 that apply pressure to a target sheet in a heated state, a heater 12 that heats the pair of pressure rollers 11, a drive motor 13 (see FIG. 3) that drives the pair of pressure rollers 11, and a biasing means 14 (see FIG. 8(a)) that presses (biases) one roller 11A of the pair of pressure rollers 11 against the other roller 11B. The pair of pressure rollers 11, the heater 12, and the drive motor 13 are supported by a support plate 71.

[0021] The pair of pressure rollers 11 are arranged in the thickness direction of the target sheet, which is the vertical direction in this case. When it is necessary to distinguish between the two rollers, the upper roller is referred to as the "upper roller" and is designated by the symbol "11A." Similarly, the lower roller is referred to as the "lower roller" and is designated by the symbol "11B." The pair of pressure rollers 11 are so-called nip rollers, and their surfaces are made of an elastic material such as rubber. As a result, the target sheet is pressed by passing through the pair of pressure rollers 11. The axes of the pair of pressure rollers 11 extend in the left-right direction. Here, the upper roller 11A is biased by the biasing means 14 (see FIG. 8(a)) toward the lower roller 11B in a direction perpendicular to the passing direction of the target sheet passing between the pair of pressure rollers 11. This generates a pressure force that pressurizes the target sheet. Here, the biasing direction in which the target sheet is biased is the thickness direction of the target sheet passing through the pair of pressure rollers 11, and is the direction in which an imaginary line connecting the central axis of the upper roller 11A and the central axis of the lower roller 11B extends. In this laminator X, the pair of pressure rollers 11 are arranged vertically, the passing direction of the target sheet passing through the pair of pressure rollers 11 is the front-to-rear direction, and the biasing direction is downward in the vertical direction. As a result, the pressure force is the biasing force by the biasing means 14 plus the weight of the upper roller 11A itself. The lower roller 11B here is rotated by a drive motor 13.

[0022] The heaters 12 heat the pair of pressure rollers 11. As shown in FIG. 2, there are four heaters 12 here, two of which heat the upper side of the upper roller 11A and two of which heat the lower side of the lower roller 11B. The heaters 12 are arranged along the extension direction of the pair of pressure rollers 11, and are, for example, quartz tube heaters. Covers 121 are provided above the upper heater 12 and below the lower heater, respectively, to prevent the housing 8 and the like from being heated and to regulate the flow (transmission) of heat from the heaters 12 to the housing 8. Temperature fuses 123 are provided on the upper and lower covers 121, and a temperature sensor (not shown) is provided on the lower cover 121.

[0023] 3, the drive motor 13 is disposed on one side (right side) in the left-right direction with respect to the pair of pressure rollers 11. As shown in (a) of FIG. 8, a driven gear 133 of the lower roller 11B meshes with a drive gear 131 of the drive motor 13. The drive gear 131 also meshes with a driven gear 132 of the pressure roller 21 (21B) of the discharge means 2. Furthermore, on the other side (left side) opposite to the drive motor 13, a gear provided at the end of the lower roller 11B constituting the heating and pressurizing means 1 meshes with a gear provided at the end of the upper roller 11A, so that the driving force of the drive motor 13 is also transmitted to the upper roller 11A (although no reference number is given, see Figure 4).

[0024] As shown in FIG. 8, the biasing means 14 biases a protruding portion of the upper roller 11A, which protrudes outward in the left-right direction from the support plate 71, toward the lower roller 11B. The biasing means 14 is provided on both ends of the upper roller 11A, with one biasing means 14 provided on each end. The biasing means 14 utilizes a rod spring that extends in a direction perpendicular to the biasing direction and is elastic in the biasing direction.

[0025] (3) Discharge means As shown in Fig. 2, the discharge means 2 is disposed downstream of the pair of pressure rollers 11, i.e., rearward. The discharge means 2 includes a pair of pressure rollers 21. The pair of pressure rollers 21 here are disposed in the thickness direction of the target sheet, which is the up-down direction here. When it is necessary to distinguish between the two rollers, the upper roller will be referred to as the "upper roller" and will be designated by the symbol "21A". Similarly, the lower roller will be referred to as the "lower roller" and will be designated by the symbol "21B". The pair of pressure rollers 21 are so-called nip rollers, and their surfaces are made of an elastic material such as rubber. As a result, the target sheet is pressed by passing through the pair of pressure rollers 21. A driving force acts on the target sheet in the discharge direction. The shafts of the pair of pressure rollers 21 extend in the left-right direction. Here, the upper roller 21A is biased by the biasing means 24 toward the lower roller 21B in a direction perpendicular to the passing direction of the target sheet passing between the pair of pressure rollers 21. This generates a pressure force that pressurizes the target sheet. Here, the biasing direction in which the target sheet is biased is the thickness direction of the target sheet passing through the pair of pressure rollers 21, and is the direction in which an imaginary line connecting the central axis of the upper roller 21A and the central axis of the lower roller 21B extends. In this laminator X, the pair of pressure rollers 21 are arranged vertically, the passing direction of the target sheet passing through the pair of pressure rollers 21 is the front-rear direction, and the biasing direction is downward in the vertical direction. As a result, the pressure force is the biasing force by the biasing means 24 plus the weight of the upper roller 21A. Here, the lower roller 21B is rotationally driven by the drive motor 13 via a drive gear 131 and a driven gear 132, as shown in FIG. 8(a). The driving force from the drive motor 13 is not directly transmitted to the upper roller 21A via gears or the like (see FIG. 4), and the upper roller 21A is rotated by the frictional force of the surface of the lower roller 21B or the target sheet being transported.

[0026] As shown in FIG. 8, the biasing means 24 includes a contact body 241 that contacts the protruding portion 21Aa of the upper roller 21A, which protrudes outward in the left-right direction from the support plate 71, from the opposite side (upper side) to the lower roller 21B, and a biasing body 242 that biases the contact body 241 toward the lower roller 21B. The biasing means 24 is provided on both ends of the upper roller 21A, and one contact body 241 and one biasing body 242 are provided at one end. 8(b), the abutment body 241 has a main body portion 241a and an extension portion 241b. The abutment body 241 has an inverted "T" shape as a whole. The abutment body 241 is made of, for example, nylon resin containing glass (fiber), and has superior heat resistance and abrasion resistance to ordinary nylon resin.

[0027] As shown in FIG. 8B, the main body 241a has an arc surface portion 241c on the lower surface thereof, which has an upwardly protruding arc shape when viewed from the left-right direction. The arc surface portion 241c abuts against the protruding portion 21Aa of the upper roller 21A, which has a circular cross section. This allows the main body 241a to rotatably abut against the upper roller 21A. The arc surface portion 241c is a contact surface that abuts against the upper roller 21A. The main body 241a has a square or rectangular shape as a whole when viewed from the left-right direction, and its lower surface is an arcuate surface portion 241c. The abutment body 241 is disposed so that the square or rectangular front and rear surfaces are parallel to the up-down direction. The main body 241a has a receiving portion 241d that receives the biasing force from the biasing body 242. The receiving portion 241d here is configured by a groove extending in the front-rear direction and formed on the upper surface. A coil spring (torsion spring) that utilizes the restoring force of torsion is used as the biasing body 242, and as shown in Fig. 10, at least one end 242b of the coil spring extends in a substantially radial direction with respect to the central axis of the main body 242a of the coil spring. The receiving portion 241d is formed so as to abut against one end 242b of the coil spring, and here, the bottom surface of the groove is arc-shaped so as to abut against one end 242b of the coil spring. Here, the arc protrudes to the opposite side to the upper roller 21A, and the center in the front-rear direction is the furthest upward from the central axis of the upper roller 21A, and the center coincides with the rotation axis of the upper roller 21A. This allows the biasing force of the biasing means 24 to act on the abutting body 241 even if the upper roller 21A moves in the thickness direction of the target sheet. In addition, the same abutting body 241 can be used on both the left and right sides, reducing the number of parts. The main body 242a of the coil spring is fixed to the support plate 71 by a screw fastener 249 that passes through the inside. The other end 242c of the coil spring abuts against an upper support portion 712 (described later) from the opposite side to the one end 242b. The one end 242b and the other end 242c are set with a wide gap between them, and a restoring force (urging force) is generated in a direction that narrows the gap between them.

[0028] The extension portion 241b extends upward from the upper surface of the main body portion 241a. Here, the central axis of the extension portion 241b extending in the vertical direction is provided so as to coincide with the central axis passing through the center of the main body portion 241a in the front-rear direction and extending in the vertical direction. In other words, the extension portion 241b extends in the vertical direction from the center of the front-rear direction of the upper surface. In addition, the central axis of the main body portion 241a and the extension portion 241b, i.e., the central axis of the abutting body 241, coincides (by design) with the direction connecting the central axes of the pair of pressure rollers 21 (the biasing direction by design). This makes it possible to suppress the abutting body 241 from shifting forward and backward. The contact body 241 is restricted from moving in the front-rear direction by the guide portions (77, 78). The guide portions (77, 78) will be described later. As a result, the urging force of the urging body 242 acts in the thickness direction of the target sheet passing between the pair of pressure rollers 21, so that the urging force can be reduced and the urging means 24 can be made smaller. The urging force of the present laminator X is set to 0.42 kgf, for example.

[0029] 8(a), the pair of support plates 71 at least have guide portions (77, 78) integral with (or separate from) the contact body 241 for biasing the upper roller 21A toward the lower roller 21B, the guide portions (77, 78) movably guiding the contact body 241 in a direction parallel to the biasing direction. The biasing direction here is downward, and the direction parallel to the biasing direction is the up-down direction. The pair of support plates 71 further includes a lower support portion 711 that rotatably supports the lower roller 21B of the pair of pressure rollers 21, an upper support portion 712 that supports the upper roller 21A from below so that it can move up and down and rotate, a biasing body support portion that supports a biasing body 242 that biases the upper roller 21A toward the lower roller 21B, and a support portion 714 that rotatably supports the pair of pressure rollers 11 (11A, 11B) of the heating and pressing means 1, on a plate portion 715. The biasing body support portion is formed of a threaded portion into which the screw fixing device 249 is screwed. The upper support portion 712 corresponds to an example of a support portion of the first invention.

[0030] 8 and 9, the guide portions (77, 78) have guide surfaces (77Aa, 77Ba, 78Aa, 78Ba) on the front and rear sides thereof, which face the front and rear surfaces of the contact body 241 and extend in the vertical direction. Specifically, the guide portions (77, 78) are ridges that protrude in the left-right direction from the plate portion 715 of the support plate 71 and extend in the vertical direction, and the surfaces that correspond to the front and rear surfaces of the contact body 241 serve as the guide surfaces (77Aa, 77Ba, 78Aa, 78Ba). Note that the guide portions (77, 78) are made of a material having excellent abrasion resistance, such as nylon resin containing glass (fiber), in consideration of sliding with the contact body 241, and the support plate 71 may also be made of the same material.

[0031] The guide portions 77, 78 may have front guide surfaces 77Aa, 78Aa facing the front surface of the contact body 241 and rear guide surfaces 77Ba, 78Ba facing the rear surface. In other words, the front guide surfaces 77Aa, 78Aa may face the front surface of the main body portion 241a of the contact body 241, may face the front surface of the extension portion 241b, or may face both front surfaces of the main body portion 241a and the extension portion 241b. Similarly, the rear guide surfaces 77Ba, 78Ba may face the rear surface of the main body portion 241a of the contact body 241, may face the rear surface of the extension portion 241b, or may face both rear surfaces of the main body portion 241a and the extension portion 241b.

[0032] The guide portion has at least one of a main body guide portion 77 that guides the main body portion 241a and an extension guide portion 78 that guides the extension portion 241b. Here, both are provided. As shown in (a) of Figure 9, the main body guide portion 77 has a main body front protrusion portion 77A formed to face the front surface of the main body portion 241a of the abutment body 241 and extend in the vertical direction, and a main body rear protrusion portion 77B formed to face the rear surface of the main body portion 241a and extend in the vertical direction, with the rear surface 77Aa of the main body front protrusion portion 77A being the front guide surface and the front surface 77Ba of the main body rear protrusion portion 77B being the rear guide surface. The main body guide portion 77 is provided so as to be continuous or substantially continuous with the upper support portion 712. This makes it possible to prevent dust and the like from entering between the upper support portion 712 and the protruding portion 21Aa of the upper roller 21A.

[0033] 9(a), the extension guide portion 78 has an extension front protrusion portion 78A formed to face the front surface of the extension portion 241b of the contact body 241 and extend in the vertical direction, and an extension rear protrusion portion 78B formed to face the rear surface of the extension portion 241b and extend in the vertical direction, with the rear surface 78Aa of the extension front protrusion portion 78A being the front guide surface, and the front surface 78Ba of the extension rear protrusion portion 78B being the rear guide surface. The extension guide portion 78 has a connecting portion 78C connecting the upper end of the extension front protrusion portion 78A and the upper end of the extension rear protrusion portion 78B. The connecting portion 78C functions as a stopper when the contact body 241 moves upward.

[0034] As shown in (b) of FIG. 9, if the dimension in the front-to-rear direction of the extension portion 241b of the abutting body 241 is "L", the distance between the front extension protrusion portion 78A and the rear extension protrusion portion 78B of the extension guide portion 78 is "M", the dimension in the front-to-rear direction of the main body portion 241a is "N", and the distance between the front main body protrusion portion 77A and the rear main body protrusion portion 77B of the main body guide portion 77 is "P", then, PN>ML As a result, when the contact body 241 is displaced (inclined) in the front-rear direction, the extension portion 241b is first regulated by the extension guide portion 78, and the contact body 241 can be prevented from tilting. It is preferable that M=L+0.13 to 0.23 and P=N+0.51 to 0.61. By satisfying this, the deviation of the contact body 241 can be reduced. In addition, if the center of the arc of the arc surface portion 241c of the abutting body 241 is "O", the radius of the arc surface portion 241c is "Q", the distance from the center O to the upper surface of the main body portion 241a is "S", and the distance from the center O to the upper surface of the extension portion 241b is "T", then: 1.5R ≦ S ≦ 2.5R 2.5R ≦ T ≦ 4.0R This satisfies the relationship: It is possible to avoid raising the center of gravity of the contact body 241 too much while ensuring the space for the receiving portion 241d. If the distance from the lower end of the contact body 241 to the upper surface of the main body guide portion 77 is "U" and the distance from the upper end of the contact body 241 to the lower surface of the extension guide portion 78 is "V", then 1.3V ≦ U ≦ 2.5V This satisfies the relationship: The main body portion 241a can be guided without creating any unnecessary portion in the main body guide portion 77. An example of the radius Q of the arcuate surface portion 241c is 3.5 mm, and an example of the radius R of the protruding portion 21Aa of the upper roller 21A is 3.49 mm.

[0035] (4) Guidance means As shown in FIG. 2, the guiding means 3 includes upstream guiding means 3A that guides the target sheet to the heating and pressurizing means 1, downstream guiding means 3B provided between the heating and pressurizing means 1 and the discharge means 2, insertion port side guiding means 3C that guides the target sheet from the insertion port 8a to the upstream guiding means 3A, and discharge port side guiding means 3D that guides the target sheet from the discharge means 2 to the discharge port 8b. The upstream guide means 3A and the downstream guide means 3B have a pair of guide plates 31A, 31B spaced apart in the vertical direction. The gap between the pair of guide plates 31A, 31B has an inclined portion at the upstream end that widens toward the upstream side, making it easier for the target sheet to enter between the pair of guide plates 31A, 31B. As described above, the insertion opening side guide means 3C is composed of the insertion opening side upper rib portion 831c and the insertion opening side lower guide body 88. The discharge opening side guide means 3D is composed of the discharge opening side upper rib portion 845 and the discharge opening side lower rib portion 813c.

[0036] (5) Operation and display means As shown in FIG. 1, the operating means 41 is a power switch for turning the power of the device on and off, and there are multiple operating means 42, such as a selection switch for selecting a lamination mode (or temperature) suitable for the thickness of the laminate film to be used, and a rotation switch for rotating the pair of pressure rollers 11 and 21 forward and reverse. There are a plurality of display means 43, including an indicator lamp for indicating the thickness of an object, an indicator lamp for indicating that the device is being driven, and the like. 3(a), the operation means 42 and the display means 43 are mounted on one board 45. The board 45 is fixed to the upper housing 82. The board 45 and the operation means 41 are disposed on the opposite side of the drive motor 13 in the left-right direction and outside the laminator unit 99. This makes it possible to reduce the influence of heat from the laminator unit 99.

[0037] (6) Power supply means and control means The power supply means and control means are composed of the first circuit section 51 and the second circuit section 53, as described above. As shown in Fig. 3(b), the first circuit portion 51 and the second circuit portion 53 are disposed in the first storage chamber 54 and the second storage chamber 56 on the outer side in the left-right direction with respect to the laminator unit 99. This makes it possible to reduce the influence of heat from the laminator unit 99. Also, the dimensions in the front-rear direction can be reduced. Furthermore, as shown in Fig. 4, partition walls 816a, 816b are provided between the first circuit portion 51 and the laminator unit 99 and between the second circuit portion 53 and the laminator unit 99, making it possible to further reduce the influence of heat. The first circuit section 51 is disposed in a first housing chamber 54 on the opposite side to the drive motor 13. The first circuit section 51 mainly includes a control circuit, a rectifier circuit, etc., and further includes a heat sink 55 provided on a first substrate 511. The first circuit section 51 corresponds to an example of the circuit section of the second aspect. The second circuit portion 53 is disposed in a second housing chamber 56 on the drive motor 13 side, and includes a relay circuit for forward and reverse rotation of the drive motor 13 and the like.

[0038] As shown in Fig. 3, a blower fan 59 is provided in the first storage chamber 54. This allows air to flow through the through holes 812a and 813a in the housing 8, and also forms an air flow path in the first storage chamber 54 as indicated by the arrows in Fig. 3(b). The blower fan 59 is disposed facing the first substrate 511. This allows the air to hit the first substrate 511, cooling the first circuit section 51. The laminator X is for high-speed startup. Here, "fast start" means that the warm-up time is short and the sheet can be processed immediately. More specifically, the heater 12 is heated in a short time, and the pair of pressure rollers 11 (including the heater 12) is made ready for sheet processing. At this time, the first circuit section 51 is loaded more than in a normal laminator, and the temperature becomes higher. Since the blower fan 59 is provided on the upstream side in the front-rear direction so as to face the first substrate 511, it can cool a wide range of the first substrate 511. By arranging the blower fan 59 on the upstream side, the inside of the first accommodation chamber 54 can be effectively utilized.

[0039] The blower fan 59 is disposed at an angle so as to face the exhaust port 8b side in the left-right direction. This allows air to flow into the housing 8 from the through-hole 812a and out of the housing 8 from the through-hole 813a. In other words, air is less likely to flow toward the heating and pressurizing means 1. This makes it possible to make the heating and pressurizing means 1 less susceptible to the effects of outside air, prevents quality deterioration such as insufficient welding of the laminate film, and produces a high-quality laminate sheet. In addition, when the blower fan 59 is tilted, the air flow coincides with the direction of movement of the target sheet, i.e., from the upstream side to the downstream side, and this prevents the surrounding air warmed by the target sheet after heating from flowing into the housing 8, and by taking in cooler air, the cooling effect can be improved. The blower fan 59 is provided so as to blow air toward the heat sink 55 of the first substrate 511. This allows the heat sink 55 to be cooled efficiently.

[0040] Although the embodiment has been described above, the present invention is not limited to this embodiment, and may be modified as follows, for example. In addition, the embodiment and the modified examples may be combined, or the modified examples may be combined. Furthermore, the present invention also includes examples that are not described in the embodiments and modified examples, and design changes that do not deviate from the gist of the invention.

[0041] <Modification> 1. Laminator (1) The target sheet moves horizontally, but may move vertically, or may change direction from the first direction to the second direction. In other words, the rotation axis of the pair of pressure rollers 11, 21 may extend not only in the left-right direction but also in the up-down direction or a direction intersecting therewith. (2) The heating and pressing means 1 includes a pair of upper and lower pressure rollers (pressure means) 11 and a heater (heating means) 12 disposed above and below, but may include multiple sets of a pair of pressure rollers and heaters. When multiple sets are included, the target sheet may move in a straight line, or the moving direction may be changed once or multiple times along the way. In addition, the pair of pressure rollers of the heating and pressing means or the pair of rollers of the discharge means may be disposed in front and behind each other. In this case, the target sheet moves in the vertical direction. In other words, the pair of pressure rollers (11, 21) may be disposed in a state in which a virtual line connecting the centers of the rollers constituting each pair of pressure rollers intersects (including the case where it is perpendicular to) the front-rear direction or the vertical direction. (3) As the insertion means, for example, a pair of rollers may be provided between the insertion opening 8a and the upstream guide means 3A. In this case, when at least one of the rollers is biased toward the other roller, a structure may be provided in which biasing means 24 or biasing means 14 is provided. (4) Although the discharge means 2 includes a pair of pressure rollers 21, a further pair of pressure rollers 21 and a second downstream guiding means may be provided between the downstream guiding means 3B and the discharge means 2. In this case, the second downstream guiding means may have the same configuration as the downstream guiding means 3B, or may have a different configuration. The discharge means 2 may include multiple pairs of pressure rollers 21. When multiple pairs of pressure rollers 21 are disposed downstream of the heating and pressing means 1, the heated and pressed target sheet can be cooled in a short period of time. Further, the discharge means 2 may be structured so that the driving force from the drive motor 13 is directly transmitted to both of the pair of pressure rollers 21 that constitute the discharge means 2 . In the above embodiment, the biasing means 24 was used to bias the upper roller 21A of the pressure rollers 21 constituting the discharge means 2 toward the lower roller 21B. However, the biasing means 24 may be provided below to bias the lower roller 21B toward the upper roller 21A, or the upper roller 21A may be biased toward the lower roller 21B and the lower roller 21B may be biased toward the upper roller 21A.

[0042] 2. Heat and pressure means The pair of pressure rollers 11 may pressurize the target sheet in a heated state, and may pressurize an already heated target sheet, or may pressurize the target sheet while heating it with the pair of pressure rollers. When heating is performed with the pair of pressure rollers, the pair of pressure rollers may be a pair of heating and pressing rollers. The heater 12 of the heating and pressurizing means 1 mainly heats the pair of pressure rollers 11 (more precisely, it also heats the target sheet), but it may be changed to a heater that heats the target sheet, or a heater that heats the target sheet may be added. However, if mainly only the target sheet is heated, there is a possibility that the target sheet will be cooled by the pair of pressure rollers, so it is preferable to also heat the pair of pressure rollers. One (upper) roller 11A of the pair of pressure rollers 11 of the heating and pressing means 1 is biased by biasing means 14 constituted by a rod-shaped spring, but it may also be biased by biasing means 24 which biases one roller 21A of the pair of pressure rollers 21 of the discharging means 2. Also, a structure may be adopted in which the biasing means 24 is provided below and the lower roller 11B is biased toward the upper roller 11A, or a structure may be adopted in which the lower roller 11B is biased toward the upper roller 11A and the upper roller 11A is biased toward the lower roller 11B. Although a quartz tube heater is used as the heater 12, a sheath heater, a thin plate heater curved to fit the pair of pressure rollers, or the like may also be used.

[0043] 3.Circuit section (1) The power supply means and control means are composed of a first circuit unit 51 and a second circuit unit 53 (the electronic components constituting the power supply means and the electronic components constituting the control means are mounted on a single board), but the power supply means may be independently configured in the first circuit unit and the control means in the second circuit unit, or the power supply means and control means may be configured in a single circuit unit. A part or all of the electronic components constituting the power supply means or the control means may be mounted on the board 45 for the operation means 42 and the display means 43 . (2) The laminator X of the embodiment is configured to be capable of being started up quickly, but if it is not designed for rapid start-up, it may or may not include the blower fan 59. Similarly, it may or may not include the heat sink 55. Although one blower fan 59 or one heat sink 55 is provided in the above embodiment, multiple blower fans 59 and multiple heat sinks 55 may be provided.

[0044] 4.Guiding part for biasing means (1) In the embodiment, the one-side guide surface of Invention 1 corresponds to, for example, both the rear surface 77Aa of the main body front protrusion portion 77A and the rear surface 78Aa of the extended front protrusion portion 78A, but it may be either the rear surface 77Aa of the main body front protrusion portion 77A or the rear surface 78Aa of the extended front protrusion portion 78A. Similarly, in the embodiment, the other side guide surface of Invention 1 corresponds to, for example, both the front surface 77Ba of the main body rear protrusion portion 77B and the front surface 78Ba of the extended protrusion portion 78B, but it may be either the front surface 77Ba of the main body rear protrusion portion 77B or the front surface 78Ba of the extended protrusion portion 78B. (2) In the embodiment, the distance between the pair of guide surfaces (rear surface 78Aa of front extension protrusion portion 78A and front surface 78Ba of rear extension protrusion portion 78B) facing extension portion 241b and extension portion 241b is smaller than the distance between the pair of guide surfaces (rear surface 77Aa of front main body protrusion portion 77A and front surface 77Ba of rear main body protrusion portion 77B) facing main body portion 241a and main body portion 241a, but may be the same or larger. However, a smaller distance on the extension portion 241b side allows the abutment body 241 to be guided to a smaller inclination angle.

[0045] 5.Discharge port side guide means (1) The extending surface of the third invention corresponds to the front surface of the second wall portion 842 in the embodiment. This second wall portion 842 extends from the discharge port 8b so that there is a gap between the second wall portion 842 and the first wall portion 841. However, the extending surface may be formed, for example, by the inner surface of a member that fills the gap between the first wall portion 841 and the second wall portion 842, or may be formed by the second wall portion 842 without the first wall portion 841. In other words, the extending surface may be any surface that extends from the discharge port 8b inside the housing 8 toward the heating and pressurizing means 1 and away from the moving path, and the shape and structure of the portion having the surface are not particularly limited. (2) In the embodiment, the guide means of the third invention is provided above the outlet 8b, which is one side in the thickness direction of the target sheet, but it may be provided on the other side (e.g., below) of the outlet 8b, or on both one and the other sides. The one and the other sides are the same when the target sheet moves in the front-rear direction, when it moves in the up-down direction, or when it moves in a direction intersecting the front-rear direction or the up-down direction. (3) In the embodiment, the second wall portion 842 of the outlet side upper guide body 84 and the rib portion (the outlet side upper rib portion 845) were configured, but the second wall portion 842 may be integrally formed with the member that constitutes the housing 8.

[0046] 6. Guide body The insertion opening side upper rib portion 831c of the insertion opening side upper guide body 83 is formed across the two side portions 831a, 831b, but may extend from the side portion 831b, for example. In this case, the side portion 831a may or may not be included. The outlet-side upper rib portion 845 of the outlet-side upper guide body 84 is formed across the second wall portion 842 and the third wall portion 843, but may be extended from the second wall portion 842, for example. In this case, the third wall portion 843 may or may not be included.

[0047] 7. Housing (1) When viewed from above, the housing 8 has an elliptical shape that is elongated in the extension direction of the pair of pressure rollers 11. However, the housing 8 may have a rectangular or elliptical shape that is elongated in the extension direction. The housing 8 may be configured to include a lower housing 81 and an upper housing 82, or may be configured to include a lower housing 81, an upper housing 82, an insertion opening side upper guide body 83, an ejection opening side upper guide body 84, and an insertion opening side lower guide body 88. The housing 8 may be made of resin, and the insertion opening side upper guide body 83, the ejection opening side upper guide body 84, and the insertion opening side lower guide body 88 may be formed as a single unit by being integrally molded with the lower housing 81 and the upper housing 82. The housing 8 is mainly composed of two components, an upper and lower component, but it may also be composed of two components, a front and rear component, two components, a left and right component, or it may be composed of three or more components. (2) The housing 8 has a plurality of through holes 812a, 813a along the extension direction of the pair of pressure rollers 11, 21, but a through hole dedicated to the blower fan 59 may be provided in the first storage chamber 54. The through holes 812a, 813a also have the function of releasing air heated by the heating and pressurizing means 1 to the outside after the device is used.

[0048] 8. Guidance means The upstream guide means 3A and the downstream guide means 3B are constituted by a pair of guide plates 31A, 31B, but they may also be formed by opposing surfaces of a guide member that is not plate-shaped, or one opposing surface may be constituted by a guide plate and the other opposing surface may be constituted by a guide member that is not plate-shaped.

[0049] <<Invention>> The laminator described in the above embodiment includes at least the following inventions. <Invention 1> 1. Background technology Laminators that can be easily used at home have been proposed. For example, the laminator described in JP 2015-221536 A includes a pair of pressure rollers for applying pressure to a pressure-bonded sheet (target sheet) in which a laminate film and a laminated body (target object) are superimposed, and a biasing means for biasing (pushing) one of the pair of pressure rollers against the other.

[0050] 2. Problems that Invention 1 aims to solve The above-mentioned laminator has a problem that the urging direction of the urging means may deviate from the set direction depending on the thickness of the target sheet. An object of the present invention 1 is to provide a laminator that can prevent the biasing direction from deviating from the set direction. In the embodiment, the set direction of the urging force is a direction perpendicular to the passing direction of the target sheet passing between a pair of heat pressing rollers (thickness direction of the target sheet) or a direction inclined within a range of -3 to +3 degrees relative to this direction. An object of the present invention 1 is to provide a laminator that can prevent the biasing direction from deviating from the set direction. The present invention 1 can be applied to laminators of other structures that include a pair of rollers and a biasing means for biasing at least one of the rollers against the other roller.

[0051] 3. Laminator according to invention 1 (1) First laminator The first laminator is a laminator equipped with a pair of pressure rollers for pressurizing a target sheet, and a biasing means for biasing one of the pair of pressure rollers against the other roller, wherein the biasing means includes a contact body that contacts the one roller from the side opposite the other roller, and a biasing body that biases the contact body in the thickness direction of the target sheet as it passes through the pair of pressure rollers, and includes guide portions facing the contact body on both sides of the contact body in the passing direction of the target sheet as it passes through the pair of pressure rollers. This makes it possible to prevent the biasing direction from deviating from a direction perpendicular to the running direction of the target sheet.

[0052] An example of "one roller" here is the "upper roller" in the embodiment, but if the passing direction is the front-to-back direction, it may be the lower roller in the embodiment, or both the upper and lower rollers. Also, if the passing direction is not the front-to-back direction, for example, the up-down direction, the one roller may be the roller located at the front, the roller located at the rear, or a roller at the front or rear. In other words, the one roller may be at least one of the pair of rollers, regardless of the passing direction. Furthermore, the pressure roller may be any roller that is biased against the other roller, and may be the pressure roller 11 of the heating and pressurizing means 1, the pressure roller 21 of the discharge means 2, or both the pressure rollers 11, 21. The biasing body may be a coil spring that utilizes torsion, a coil spring that utilizes compression or tension, a leaf spring or rod spring that utilizes bending force, a weight that utilizes gravity, or a combination of these. One or more biasing members may be provided for one end of one roller. The biasing body may bias the contact body directly, or may bias the contact body indirectly via another member. The abutment body need only have a contact surface that abuts against one of the rollers, and its overall shape, when viewed from the extension direction of the roller, may be square, rectangular, inverted "T"-shaped, "L"-shaped, "W"-shaped, a combination of these shapes, or a shape similar to these. The guide portion may be provided directly or indirectly on the support plate, or may be provided on a member other than the support plate, such as the housing or a member fixed to the housing. In the embodiment, the guide portion is a protrusion, but it is sufficient if it has a guide surface that faces the abutment body. For example, the abutment body may be disposed in a recess, and the side surface of the recess may be used as the guide surface.

[0053] (2) Second laminator The second laminator is the first laminator, and is provided with a support plate having a support portion that supports one of the rollers from the other roller side so that the one roller is movable in the thickness direction of the target sheet and rotatable, and the guide portion is provided on the support plate and has a one-side guide surface that faces one side of the abutting body in the passing direction, and a other-side guide surface that faces the other side of the abutting body in the passing direction. This makes it possible to easily provide the guide portion. The guide portion may be integral with the support plate, or may be formed separately from the support plate and attached to the support plate. If the guide portion is integral with the support plate, it can be formed by integral molding if it is made of resin, or it can be formed by machining or casting if it is made of metal. The one-side guide surface and the other-side guide surface may overlap partially or completely when viewed from the passing direction, or may not overlap. The number of the one-side guide surfaces and the number of the other-side guide surfaces may be the same or different.

[0054] (3) The third laminator The third laminator is the second laminator, wherein the abutment body has a main body portion having an abutment surface that abuts against the one roller, and an extension portion extending from the main body portion to the opposite side of the other roller, and the one-side guide surface faces at least one of the main body portion and the extension portion, and the other-side guide surface faces at least one of the main body portion and the extension portion. This ensures that the contact body is guided by the guide portion. The extension portion of the abutment body may extend from the main body portion, and may extend from the center of the main body portion in the passing direction, may extend through the center, or may extend away from the center.

[0055] (4) The fourth laminator The fourth laminator is the third laminator, wherein the dimension of the extension portion in the passing direction is smaller than the dimension of the main body portion in the passing direction, the one-side guide surface faces both the main body portion and the extension portion, the other-side guide surface faces both the main body portion and the extension portion, and the distance between the pair of guide surfaces facing the extension portion and the extension portion is smaller than the distance between the pair of guide surfaces facing the main body portion and the main body portion. This can reduce the inclination of the contact body relative to the thickness direction of the target sheet.

[0056] (5) Fifth Laminator A fifth laminator is any one of the second to fourth laminators, except that the biasing body is a coil spring that utilizes torsion and is supported by the support plate. This allows implementation with a simple structure.

[0057] <Invention 2> 1. Background technology Laminators that can be easily used at home have been proposed. For example, the laminator described in JP 2015-221536 A includes, in a housing, a pair of heat-pressure bonding rollers for heat-pressure bonding a pressure-bonded sheet (target sheet) in which a laminate film and a laminated body (target object) are superimposed, and a circuit section in which electronic components for controlling the heat-pressure bonding rollers are mounted on a board.

[0058] 2. Problems that Invention 2 aims to solve In the above-mentioned laminator, the housing is provided with a through hole for communication, but there is a problem in that the temperature of the circuit portion tends to become high. This problem becomes more pronounced when the lamination process is started at high speed in order to shorten the lamination time. The second aspect of the present invention has an object to provide a laminator capable of suppressing a temperature rise in the circuit portion.

[0059] 3. Laminator according to invention 2 (1) First laminator The first laminator is a laminator that heats and pressurizes a target sheet inserted through an insertion opening of a housing by a heating and pressurizing means and discharges the target sheet from an outlet of the housing, the housing has a through hole for communicating the inside with the outside, and houses a circuit unit having electronic components mounted on a substrate for controlling the heating and pressurizing means; A blower fan is provided around the circuit unit. Laminator. This makes it possible to suppress a rise in temperature in the circuit section. The through holes need only communicate between the inside and outside of the housing, and there are no particular limitations on the number, size, shape, or location of the holes.

[0060] (2) Second laminator The second laminator is a first laminator. the through holes are located on the insertion opening side and the discharge opening side in the moving direction of the target sheet, The blower fan is disposed so that air flows in through the through hole on the insertion port side and flows out through the through hole on the exhaust port side. This allows the circuit section to be cooled by the cold air on the insertion opening side before the target sheet is heated.

[0061] (3) The third laminator The third laminator is the first or second laminator, The heating and pressing means includes a pair of pressure rollers. The circuit portion is disposed on at least one side of the pair of pressure rollers in the extending direction. This allows the air that flows into the housing to flow to one side in the stretching direction, reducing the amount of air flowing on the heating and pressurizing means side, suppressing a drop in the ambient temperature of the heating and pressurizing means, and reducing welding defects of the laminate film.

[0062] (4) The fourth laminator The fourth laminator is a first to third laminator, The blower fan is disposed facing the circuit portion. This allows the circuit section to be cooled efficiently.

[0063] (5) Fifth Laminator The fifth laminator is a first to fourth laminator, the circuit portion includes a heat sink on the substrate; The blower fan is disposed facing the heat sink. This allows the heat sink to be cooled efficiently.

[0064] (6) 6th Laminator The sixth laminator is the first laminator, The blower fan is positioned on the insertion port side of an imaginary line that passes through the center of the movement direction of the target seat in the housing and is perpendicular to the movement direction, and is arranged at an angle toward the exhaust port side of the imaginary line. This allows the circuit unit to be cooled by the cold air from the insertion opening side before the target sheet is heated. Also, it makes it easier to secure space to accommodate the circuit unit.

[0065] <Invention 3> 1. Background technology Laminators that can be easily used at home have been proposed. For example, the laminator described in JP 2015-221536 A has a pair of heat pressing rollers in a housing for heat pressing a pressure-receiving sheet (target sheet) in which a laminate film and a laminated body (target object) are superimposed, and a paper outlet is provided on the rear surface (back wall) of the housing.

[0066] 2. Problems that Invention 3 aims to solve In the above-mentioned laminator, since the sheet discharge port is formed on the plate-shaped back wall, there is a problem that the target sheet that has been deformed by heat or the like is likely to become clogged in the area around the sheet discharge port on the back side. The present invention 3 has an object to provide a laminator capable of suppressing clogging of the target sheet around the discharge port.

[0067] 3. Laminator according to invention 3 (1) First laminator The first laminator is A laminator that houses a heating and pressurizing means for heating and pressurizing a target sheet in a housing, and has an outlet in the housing for discharging the target sheet that has passed through the heating and pressurizing means, a guide means for guiding the target sheet to the discharge outlet, the guide means being disposed upstream of the discharge outlet; the guide means has an extension surface extending from an opening end constituting the discharge port to a side inside the housing opposite to a moving path along which the target sheet moves, and a plurality of rib portions extending from the extension surface toward the heating and pressurizing means, an edge of the rib portion on the side of the moving path is farther from the moving path than an edge of the extension surface on the side of the discharge port; The end of the extending surface on the discharge outlet side is curved so as to protrude towards the moving path side. As a result, even if the end of the target sheet deformed by heat collides with the stretching surface when the target sheet is discharged, the end of the target sheet can be guided to the discharge port side, which means that clogging of the target sheet can be suppressed. The moving direction of the target sheet is not particularly limited, and the number of pairs of pressure rollers, discharge rollers, etc., and the configuration of the heating and pressing means are also not particularly limited.

[0068] (2) Second laminator The second laminator is a first laminator. The plurality of ribs are provided at equal or unequal intervals in the extending direction of the pair of pressure rollers of the heat and pressure means. This makes it possible to accommodate multiple types of target sheets of different sizes.

[0069] (3) The third laminator The third laminator is the first or second laminator, The rib portion has a straight portion extending from the discharge outlet side approximately parallel to the movement path in the movement path, and an inclined portion that slopes from the end of the straight portion opposite the discharge outlet so as to move away from the movement path as it moves away from the discharge outlet. This allows the target sheet to be easily received by the rib portion, and prevents the target sheet from becoming clogged in the rib portion. <Other> The above inventions 1 to 3 may include the configurations described in the embodiments in addition to the configuration of the laminator according to the invention itself, or may include the configuration of a laminator according to another invention. [Explanation of symbols]

[0070] X Laminator 1 Heat and pressure means 2 Discharge means 3. Guidance means 3D outlet side guide means 11 Pair of pressure rollers 12 Heater 14. Actuation means 21 Pair of pressure rollers 24 Actuation means 51 1st circuit section 53 2nd circuit section 59 Blower fan

Claims

1. A laminator including a pair of pressure rollers for applying pressure to a target sheet and a biasing means for biasing one of the pair of pressure rollers against the other roller, the biasing means includes a contact body that contacts the one roller from a side opposite to the other roller, and a biasing body that biases the contact body in a thickness direction of the target sheet passing through the pair of pressure rollers, a guide portion facing the contact body on both sides of the contact body in a passing direction of the target sheet passing through the pair of pressure rollers; Laminator.

2. a support plate having a support portion that supports the one roller from the other roller side so as to be movable in a thickness direction of the target sheet and rotatable; The guide portion is provided on the support plate and has a one-side guide surface facing one side of the contact body in the passing direction and an other-side guide surface facing the other side of the contact body in the passing direction. The laminator of claim 1.

3. the abutment body has a main body portion having a contact surface that abuts against the one roller, and an extension portion that extends from the main body portion to a side opposite to the other roller, the one-side guide surface faces at least one of the main body portion and the extension portion, The other-side guide surface faces at least one of the main body portion and the extension portion. The laminator of claim 2.

4. A dimension of the extension portion in the passing direction is smaller than a dimension of the main body portion in the passing direction, the one-side guide surface faces both the main body portion and the extension portion, the other-side guide surface faces both the main body portion and the extension portion, a distance between the pair of guide surfaces facing the extension portion and the extension portion is smaller than a distance between the pair of guide surfaces facing the main body portion and the main body portion; The laminator of claim 3.

5. The biasing body is a coil spring that utilizes torsion and is supported by the support plate. The laminator according to any one of claims 2 to 4.

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