JP2014178138A - Sheet extension device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evenly extend a sheet in each direction without needing special control.SOLUTION: A sheet extension device 1 includes: three or more movable bodies 7 each of which has a stationary part arranged evenly in a circumferential direction with a predetermined axis A, vertical to a substantially same plane, as a center in the plane and fixing a part of a sheet, and which are provided movably in a radial direction with the axis A as the center between a position close to the axis A and a position away from the axis A; and movement mechanisms 81, 82 which moves the three or more movable bodies 7 in the same direction of the radial direction by the same distance while interlocking with each other.

Description

  The present invention relates to a seat expansion device.

Conventionally, in the biological field, a method of dividing a substrate and a section by adhering a substrate on which a section of living tissue is adhered to a sheet having extensibility and extending the sheet in a surface direction (for example, , See Patent Document 1).
On the other hand, in the field of semiconductor processes, a method is known in which a linear modified region is formed on a wafer by a laser and a wafer is divided by applying a pulling force in a direction perpendicular to the modified region (for example, , See Patent Document 2).

International Publication No. 2011/149909 JP 2012-174945 A

  In the dividing method using the pulling force, it is difficult to control the dividing position of the living tissue, unlike a substrate or a wafer that can easily control the dividing position by a prior process such as formation of a groove or a modified region. In order to divide the section exactly along the outline of the substrate using the means described in Patent Document 1, the sheet is expanded evenly in each direction so that the sections are pulled simultaneously with the same force in each direction. There must be.

  However, in the apparatus described in Patent Document 1, when a part of the sheet disposed on the stage is stretched in a direction perpendicular to the sheet, the amount of sheet expansion increases at the periphery of the stage, and the stage There is an inconvenience that the amount of elongation of the sheet becomes small at the center of the sheet. In the apparatus described in Patent Document 2, since the sheet is expanded in two directions using two mutually independent mechanisms, there is a problem in that the magnitude of the pulling force and the pulling timing of the two mechanisms must be precisely controlled. is there.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a sheet expansion device that can uniformly expand a sheet in each direction without requiring special control.

In order to achieve the above object, the present invention provides the following means.
The present invention has fixing portions that are arranged evenly in a circumferential direction centering on a predetermined axis perpendicular to the plane on substantially the same plane, and each of the fixing portions fixes a part of the sheet. Three or more movable bodies provided so as to be movable in a radial direction centered on the axis between positions separated from the shaft, and the three or more movable bodies are linked to each other by the same distance in the radial direction. And a moving mechanism for moving the same in the same direction.

  According to the present invention, the seat is attached to the plurality of movable bodies by the fixed portion, and the plurality of movable bodies are moved radially away from the shaft by the moving mechanism, whereby the sheet is pulled radially by the fixed portion. Expand. In this case, the sheet is simultaneously pulled with a uniform force in each direction by three or more movable bodies that move in a radial manner by the same distance in conjunction with each other. As a result, the sheet can be uniformly expanded in each direction without requiring special control.

In the above invention, each of the fixing portions may be arranged at a position close to the shaft with a gap between the fixing portions adjacent to each other in the circumferential direction.
By doing in this way, it can prevent that the expansion rate of the circumferential direction of a sheet | seat becomes high locally between adjacent fixing | fixed parts.

Moreover, in the said invention, the said movable body may have the mutually same shape and dimension.
By doing in this way, a structure and operation | movement of a movable body and a moving mechanism can be simplified.

Moreover, in the said invention, the plane which fixes the said sheet | seat with an adhesive agent may be sufficient as the said fixing | fixed part.
By doing in this way, since it is not necessary to provide the member for fixing a sheet | seat in a movable body, the structure of a movable body can be simplified.

Moreover, in the said invention, you may provide the guide mechanism which prescribes | regulates the movement locus | trajectory of the said radial direction of the said movable body.
By doing in this way, the moving direction of the movable body moved by the moving mechanism can be further stabilized.

Moreover, in the said invention, each said movable body has a blade | wing part arrange | positioned on the edge part of the said other movable body adjacent to the said circumferential direction so that it may overlap with the direction along the said axis | shaft, A guide groove provided in each of the blade portions and extending in a tangential direction of the circumference around the axis; and a protrusion provided in each of the end portions and inserted in the guide groove so as to be movable in the tangential direction; May be provided.
By doing in this way, since a guide mechanism is provided in the movable body, a structure can be simplified. In addition, since three or more movable bodies are integrally connected by the guide mechanism, handling of the movable bodies can be facilitated.

In the above invention, the moving mechanism is a rotating body provided to be rotatable about the axis, and a motion conversion for converting the rotational motion of the rotating body into the linear linear motion of each movable body. Means.
By doing in this way, radial movement of a movable body can be generated by using a simple rotational motion as a driving force.

In the above invention, the motion converting means is provided in each of the movable bodies, the arc-shaped cam groove whose distance from the shaft gradually changes as the circumferential position changes, and the rotation And a driver element that is provided in a body and is inserted into each of the cam grooves so as to be movable in the arc shape.
By doing in this way, a rotational motion can be converted into the linear motion of a movable body with a simple mechanical mechanism.

In the above invention, a moving direction limiting mechanism may be provided that limits the moving direction of the movable body in the radial direction only to a direction away from the shaft.
By doing in this way, it can prevent that a movable body is pulled back to the axial side by the force which the expanded sheet | seat tends to shrink, and can maintain a sheet | seat in an expanded state.

  According to the present invention, there is an effect that the sheet can be uniformly expanded in each direction without requiring special control.

1 is an overall configuration diagram of a seat expansion device according to an embodiment of the present invention. It is a top view which shows the expansion board of (a) contraction state and (b) expansion state. It is a top view which shows the sheet | seat before (a) expansion and (b) expansion applied to the sheet | seat expansion apparatus of FIG. It is a top view which shows the partial structure of the modification of the seat expansion apparatus of FIG. 1 provided with a movement limitation mechanism. It is a figure which shows the modification of a guide mechanism. It is a figure which shows another modification of the guide mechanism of (a) contraction state and (b) expansion state. It is a figure which shows the modification of an expansion board. It is a figure which shows another modification of an expansion board.

Hereinafter, a seat expansion device 1 according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the sheet extending apparatus 1 according to the present embodiment includes four flat plates assembled substantially parallel to each other, that is, a base plate 2 arranged substantially horizontally, and a base plate 2 on the base plate 2. The expansion plate 3 is disposed, and the rotation plate (rotary body) 4 and the guide plate 5 are disposed with the expansion plate 3 sandwiched in the vertical direction. Each of these four flat plates 2, 3, 4 and 5 has a window 2a, 3a, 4a and 5a penetrating in the thickness direction at the center, and the substantial center of each of the windows 2a, 3a, 4a and 5a is perpendicular to each other. It is assembled so that the passing axes A coincide with each other.

  The base plate 2 has three rollers 6 provided at positions that contact the outer peripheral surface of a circular rotating plate 4 placed on the base plate 2. These three rollers 6 are provided so as to be rotatable around a rotation axis parallel to the axis A, and the rotation plate 4 is smoothly rotated about the axis A with respect to the base plate 2.

  As shown in FIGS. 2A and 2B, the expansion plate 3 includes a plurality of isosceles trapezoidal movable bodies 7 obtained by equally dividing a flat plate having a regular polygonal outer shape in the circumferential direction. . In the present embodiment, the expansion plate 3 including six movable bodies 7 will be described. The upper surfaces (fixed portions) of the six movable bodies 7 are positioned on the same plane so as to form a single plane, and the sheet 20 is fixed by an adhesive so as to cover the window 3a. .

  Each movable body 7 is moved between a contracted position close to the axis A shown in FIG. 2A and an extended position separated from the axis A shown in FIG. , Are provided so as to be movable in the radial direction about the axis A. The expansion plate 3 is expanded and contracted by the movement of the movable body 7.

  The rotating plate 4 and the expansion plate 3 placed on the rotating plate 4 are provided with a cam mechanism (moving mechanism, motion converting means) that converts the rotational motion of the rotating plate 4 into the radial linear motion of the six movable bodies 7. ) Is provided. The cam mechanism includes six cam grooves 81 formed on the lower surface of each movable body 7, and six pin-shaped driver elements 82 that are fixed perpendicularly to the upper surface of the rotating plate 4 and inserted into the cam grooves 81. have. The cam groove 81 has an arc shape in which the distance from the axis A gradually changes as the circumferential position around the axis A changes. The driver elements 82 are equally arranged in the circumferential direction about the axis A, and are provided in the cam groove 81 so as to be movable along the arc shape.

  When the user operates the handle 10 connected to the rotating plate 4 to rotate the rotating plate 4, the driving element 82 moves in the cam groove 81 from one end to the other end. At this time, the driving element 82 is movable. By pressing 7 in the radial direction, the six movable bodies 7 simultaneously move linearly in the radial direction by the same distance. Thereby, the six movable bodies 7 move in a radial manner around the axis A in conjunction with each other.

  The extension plate 3 and the guide plate 5 placed on the extension plate 3 are provided with a guide mechanism that defines the movement trajectory of each movable body 7 by the cam mechanism. The guide mechanism has six guide grooves 91 formed through the guide plate 5 in the thickness direction, and six protrusions 92 fixed to the upper surface of each movable body 7 and inserted into the guide grooves 91. ing. The guide groove 91 has a linear shape along the radial direction with the axis A as the center. The protrusion 92 is provided in the guide groove 91 so as to be movable in the radial direction.

  When each movable body 7 moves in the radial direction by the operation of the cam mechanism described above, the projection 92 linearly moves along a linear locus defined by the linear shape of the guide groove 91. As a result, the movable body 7 driven by the cam mechanism moves stably without causing blurring in the moving direction.

  In addition, the screw 12b is fastened to the screw hole 12a formed in the position corresponding to each other of the base plate 2 and the guide plate 5 so that the expansion plate 3 and the guide plate 5 do not rotate together with the rotary plate 4. Thus, the circumferential position around the axis A of the extension plate 3 and the guide plate 5 is fixed with respect to the base plate 2. At this time, in order to make the gap between the base plate 2 and the guide plate 5 constant, a spacer (not shown) may be sandwiched between the base plate 2 and the guide plate 5.

Next, the operation of the sheet expanding apparatus 1 configured as described above will be described by taking as an example a case where the substrate 30 bonded to the sheet 20 is divided by the expansion of the sheet 20.
FIG. 3A shows the substrate 30 bonded to the sheet 20. On the surface of the substrate 30, lattice-like grooves 30 a are formed in advance. In addition, a slice 40 cut out from the living tissue is attached to the surface of the substrate 30. When such a substrate 30 is pulled in the surface direction by expansion of the sheet 20, as shown in FIG. 3B, the substrate 30 is easily divided along the groove 30a. At this time, the slice 40 is also formed in the groove 30a. Can be divided along.

  In order to expand such a sheet 20 using the sheet expanding apparatus 1 according to the present embodiment, first, the rotating plate 4, the expanding plate 3, and the guide plate 5 are sequentially stacked on the base plate 2. At this time, the expansion plate 3 and the guide plate 5 are attached so that the driver 82 is inserted into the cam groove 81 and the protrusion 92 is inserted into the guide groove 91. Next, the guide plate 5 is fixed to the base plate 2 by fastening the screw 12b in the screw hole 12a. And the edge part of the sheet | seat 20 is fixed to the upper surface of the six movable bodies 7 arrange | positioned in the contracted position exposed in the window 5a with an adhesive agent. Next, the handle 10 is operated to rotate the rotating plate 4. As a result, the six movable bodies 7 of the expansion plate 3 move radially to the expansion position, the end portion of the sheet 20 is pulled, the central portion arranged in the window 3a expands, and the substrate 30 and the slice 40 are grooved. It is divided along 30a.

  In this case, according to the present embodiment, the six movable bodies 7 whose end portions of the seat 20 are fixed by the cam mechanism that converts the rotational motion of the common rotating plate 4 into the linear motion of each movable body 7. However, since they move radially by the same distance at the same time, the central portion of the sheet 20 is simultaneously pulled with an equal force in the entire circumferential direction. Therefore, the segment 40 can be divided along the groove 30a accurately. Moreover, since it is a simple structure consisting of four flat plates 2, 3, 4, and 5 stacked in parallel, it can also be placed on the stage of an optical microscope. At this time, since the windows 2a, 3a, 4a, 5a penetrating the four flat plates 2, 3, 4, 5 in the thickness direction are provided, the windows 2a, 3a, 4a, 5a are arranged at the positions. The substrate 30 and the slice 40 can be operated with respect to the substrate 30 or the slice 40 while observing the substrate 30 and the slice 40 with an optical microscope.

In the present embodiment, a moving direction limiting mechanism that limits the rotation direction of the rotating plate 4 only to the direction in which the expansion plate 3 is expanded may be provided.
For example, as shown in FIG. 4, the moving direction limiting mechanism includes a sawtooth-shaped groove 111 formed in the circumferential direction on at least a part of the outer peripheral surface of the rotating plate 4, and a groove 111 provided in the base plate 2. The ratchet mechanism includes a claw 112 to be fitted and a spring 113 that urges the claw radially inward. By moving the claw 112 radially outward against the bias of the spring 113, the rotating plate 4 can be moved in both directions.

  By doing in this way, even in the process of expanding the elastic sheet 20, even if a force toward the contracted position due to the restoring force to contract the sheet 20 acts on the movable body 7, the moving direction limiting mechanism 11, the movable body 7 can be prevented from moving to the contracted position, and the seat 20 can be maintained in the expanded state.

  In the present embodiment, the guide mechanism has the guide groove 91 provided on the guide plate 5 and the protrusion 92 provided on the movable body 7. However, the arrangement of the guide groove 91 and the protrusion 92 is as follows. It can be changed as appropriate. For example, as shown in FIG. 5, a protrusion 92 may be provided on the upper surface of the base plate 2, and a guide groove 91 for each movable body 7 may be provided. By doing in this way, the number of flat plates can be reduced by one and it can be set as a simpler structure.

  Further, as shown in FIG. 6, both the guide groove 91 and the protrusion 92 may be provided on the movable body 7. That is, each movable body 7 has a blade portion 71 that is disposed so as to overlap with an end portion of another movable body 7 adjacent in the circumferential direction, and a guide groove 91 is formed in the blade portion 71. A protrusion 92 is provided at an end portion that overlaps the blade portion 71. In this case, when the six movable bodies 7 move radially, the two adjacent movable bodies 7 move in a direction away from or close to each other in the circumferential direction, so that the guide groove 91 is centered on the axis A. It is formed along the tangential direction of the circumference.

  Even if it does in this way, since the guide plate 5 becomes unnecessary, it can be set as a still simpler structure. Furthermore, since the six movable bodies 7 are integrally connected by the guide mechanism, the expansion plate 3 can be easily handled.

Moreover, in this embodiment, the movable body 7 may be arrange | positioned with the clearance gap between each other in the circumferential direction in the contraction position.
In the case where the movable bodies 7 are arranged in close contact with each other in the circumferential direction, the expansion rate of the sheet 20 becomes larger than the other parts at the position located at the boundary between the two movable bodies 7, and the sheet 20 May be overextended locally. Therefore, as shown in FIG. 7, it is possible to prevent the expansion rate of the seat 20 from being locally increased by securing a gap between two circumferentially adjacent movable bodies 7 at the contracted position. it can. In FIG. 7, the gap is provided in a part of the radial dimension of the movable body 7, but may be provided in the entire radial dimension of the movable body 7.

  In the present embodiment, the expansion plate 3 includes the six movable bodies 7. However, the number of the movable bodies 7 may be three or more. For example, as illustrated in FIG. The expansion plate 3 may be configured by the four movable bodies 7. The shapes and dimensions of all the movable bodies 7 are not necessarily the same, and the sheet 20 can be fixed at three or more positions evenly arranged in the circumferential direction with the axis A as the center. It is only necessary that the portion for fixing is moved symmetrically in the radial direction about the axis A.

In the present embodiment, the sheet 20 is fixed to the upper surface of the movable body 7 with an adhesive. However, the fixing means for the sheet 20 may be a means capable of fixing the sheet 20 to the movable body 7 sufficiently firmly. For example, the sheet 20 may be fixed to the movable body 7 using other means such as a clip.
In the present embodiment, the cam mechanism is provided as the motion converting means for converting the rotational motion of the rotating plate 4 into the linear motion of the movable body 7, but instead of this, a mechanism comprising a rack and a pinion, etc. Other mechanisms may be employed.

In the present embodiment, the movable body 7 is moved using the rotation operation of the rotating plate 4 by the user as a driving force. Instead, an electric driving force such as a linear motor or a solenoid motor is used instead. The plurality of movable bodies 7 may be linearly moved radially using the generated power generation source.
In the present embodiment, the guide mechanism has the guide groove 91 and the protrusion 92 that moves in the guide groove 91, but instead of the protrusion 92, the inner surface of the guide groove 91 and the movable body 7. A roller, a ball, or the like that moves in the guide groove 91 while being sandwiched between the upper surface and the upper surface may be employed.

DESCRIPTION OF SYMBOLS 1 Sheet expansion device 2 Base plate 2a, 3a, 4a, 5a Window 3 Expansion plate 4 Rotating plate (rotating body)
5 Guide plate 6 Roller 7 Movable body 10 Handle 12a Screw hole 12b Screw 20 Sheet 30 Substrate 40 Section 71 Blade part 81 Cam groove (movement mechanism, motion conversion mechanism)
82 Driver (movement mechanism, motion conversion mechanism)
91 Guide groove (Guide mechanism)
92 Protrusion (guide mechanism)
111 groove (movement direction limiting mechanism)
112 claw (movement direction limiting mechanism)
113 Spring

Claims (9)

Each of the fixing portions is arranged in a circumferential direction centering on a predetermined axis perpendicular to the plane on substantially the same plane, and each of the fixing portions fixes a part of the sheet. Three or more movable bodies provided to be movable in a radial direction about the axis between
A seat expansion apparatus comprising: a moving mechanism that moves the three or more movable bodies in the same radial direction in conjunction with each other by the same distance.   2. The seat expansion device according to claim 1, wherein each of the fixing portions is arranged with a gap between the fixing portion and another fixing portion adjacent in the circumferential direction at a position close to the shaft.   The seat expansion device according to claim 1 or 2, wherein the movable bodies have the same shape and dimensions.   The sheet expanding device according to any one of claims 1 to 3, wherein the fixing portion is a flat surface that fixes the sheet with an adhesive.   The sheet expanding apparatus according to any one of claims 1 to 4, further comprising a guide mechanism that defines a moving locus of the movable body in the radial direction. Each of the movable bodies has a blade portion that is disposed so as to overlap an end portion of the other movable body adjacent in the circumferential direction along the axis.
The guide mechanism is
A guide groove provided in each of the blade portions and extending in a tangential direction of a circumference around the axis;
The sheet expanding apparatus according to claim 5, further comprising: a protrusion provided at each of the end portions and inserted into the guide groove so as to be movable in the tangential direction. The moving mechanism is
A rotating body provided to be rotatable around the axis;
The seat expansion device according to any one of claims 1 to 6, further comprising motion conversion means for converting the rotational motion of the rotating body into the linear motion of the movable body in the radial direction. The motion conversion means is
An arcuate cam groove provided on each movable body, the distance between the shaft gradually changing as the circumferential position changes;
The seat expansion device according to claim 7, further comprising: a driving element that is provided in the rotating body and is inserted into each of the cam grooves so as to be movable in the arc shape.   The sheet expanding apparatus according to any one of claims 1 to 8, further comprising a moving direction limiting mechanism that limits a moving direction of the movable body in the radial direction only to a direction away from the shaft.

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