JP2008280073A - Blade case and method of using blade case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible for a maker and a user to easily open and close a blade case when a cutting blade is shipped in the state of being stored in the case. <P>SOLUTION: In closing an opening part 20 by a lid body 3 after storing a cutting blade 6 in a storage body 2, the part 20 is fixed by a stopper 5 in a closed condition and a tab 321 is fitted in a catching hole 230 for sealing the body 2 and the lid 3. In releasing the sealed condition, a broken connecting part 320 is broken, and the body 3 and a sealing means 32 are separated for releasing the closed condition by the stopper 5 and for taking out the blade 6. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a blade case in which a cutting blade is stored and a method of using the same.

  Cutting blades used for semiconductor wafer dicing, etc., are used with a type called a hub blade in which a ring-shaped cutting edge is formed by electroforming on the outer periphery of a circular base, and sandwiched by a flange. There is a type called a washer blade in which a ring-shaped cutting blade is formed only by electroforming.

  Any of the cutting blades has a very thin thickness of 20 μm to 100 μm and is easily damaged in the distribution process. Therefore, these cutting blades are accommodated in, for example, a blade case described in Patent Document 1. This blade case is an openable case composed of an accommodating portion and a lid portion.

Japanese Patent No. 3783165

  However, even if the cutting blade is accommodated in the blade case and closed by closing the lid body, the housing portion and the lid portion may be separated and the cutting blade may jump out of the blade case. The cutting blade manufacturer stores a new cutting blade to be shipped in the blade case, and then sticks the tape across the lid and the container, so that the cutting blade pops out of the blade case during the distribution process. Is preventing.

  Further, the fact that the tape is stuck is proof that a new cutting blade is accommodated. Therefore, it takes time for the manufacturer to apply the tape, and the user takes time to remove the tape.

  Therefore, the problem to be solved by the present invention is to prevent troublesome opening and closing on both the manufacturer side and the user side when the cutting blade is housed in a blade case and shipped.

  The first invention relates to a blade case that accommodates a cutting blade having a rotation shaft insertion hole formed in the central portion thereof. The blade case closes the opening with an accommodating body having an opening for accommodating the cutting blade. And a lid that opens, a connecting portion that connects the container and the lid so as to be openable and closable, and a stopper that switches between a closed state in which the opening is closed and an open state in which the opening is open. The container is formed with a convex part that is loosely fitted into the rotary shaft insertion hole of the cutting blade, the top part of the convex part is formed with a locking hole, and the lid is a claw part that is locked to the locking hole. And a breaking connection portion that connects the claw portion so as to be separable from the lid. It is desirable that the sealing means is formed with a pressing portion that transmits a breaking force to the breaking connection portion.

  The second invention relates to a method of using the blade case, and when the cutting blade is accommodated in the container and the opening is closed by the lid, the stopper is fixed in the closed state and the claw is locked. When the container and the lid are sealed by engaging with the hole, and the sealing is released, the fracture connecting portion breaks and the lid and the sealing means are separated, and the closed state is fixed by the stopper. Is opened and the cutting blade can be taken out. After the lid and the sealing means are separated, the stopper is maintained in either the closed state or the open state.

  In the present invention, a sealing hole is formed having a locking hole in the convex portion at the center of the container, and a claw portion that is locked in the locking hole and a breakage connecting portion that detachably connects the claw portion from the lid. Since the stopping means is provided on the lid body of the blade case, the cutting body is accommodated in the housing body, and the lid is closed by closing the lid body, whereby the housing body and the lid body are sealed by the sealing means. . Therefore, it is not necessary for the manufacturer to apply a tape across the container and the lid.

  On the user side, since the sealing can be released by pressing the pressing portion of the sealing means with a finger to break the fracture connecting portion, there is no need to peel off the tape.

  Furthermore, it can be seen that a new cutting blade is accommodated in the blade case when the breaking connection portion is not broken, and if the breaking connection portion is broken, the cutting blade accommodated in the blade case is not new. There is also an advantage of knowing.

  A blade case 1 shown in FIG. 1 includes a housing 2 that houses a cutting blade. The container 2 is surrounded by a bottom surface 20a and a wall portion 20b that stands up from the peripheral edge portion thereof, and has an opening 20 that is opened in a concave shape to accommodate the cutting blade.

  As a blade stored in the blade case 1, for example, there is a hub blade 6 shown in FIG. The hub blade 6 is formed such that a cutting blade 61 protrudes from the peripheral edge of the base 60 toward the outer peripheral side, and a rotation shaft insertion hole for insertion into the rotation shaft of the cutting device is provided at the center of the base 60. 62 is formed. On the bottom surface 20a of the opening 20, a ring-shaped receiving convex portion 22 that protrudes to receive the bottom surface of the base 60 constituting the hub blade 6 shown in FIG.

  A convex portion 23 is formed on the inner side of the receiving convex portion 22 for loosely fitting the rotary shaft insertion hole 62 formed in the hub blade 6. A locking hole 230 is formed at the top of the convex portion 23. The locking hole 230 is concentric with the convex portion 23 and has an inner diameter smaller than the outer diameter of the convex portion 23. In the illustrated example, a ring-shaped thin plate 231 is formed on the outer peripheral side of the locking hole 230. Yes. The thin plate 231 is formed with a slit 232 penetrating in the vertical direction.

  The blade case 1 includes a lid 3 that closes and opens the opening 20 of the container 2. The container 2 and the lid 3 are connected to each other by a connecting portion 4 so that the container 2 and the lid 3 can be opened and closed. The container 2 and the lid 3 have a closed state in which the opening 20 is closed by the lid 3. A stopper portion 5 is provided for switching between an open state and an open state.

  As shown in FIG. 3, the lid 3 is formed with a convex portion 30 that protrudes toward the side that does not face the container 2 in the closed state. On the other hand, the back surface 24 of the container 2 is formed with a concave portion 25 that fits with the convex portion 30 of the lower blade case when a plurality of blade cases 1 are stacked. As shown in FIG.1 and FIG.2, the convex part 30 has the circular arc part 30a and the linear part 30b, and the recessed part 25 also has the circular arc part 25a and the linear part 25b corresponding to this. . When the blade case 1 is stacked, the convex portion 30 engages with the concave portion 25, and the rotation of the blade case 1 is prevented by the linear portion 30 b constituting the convex portion 30 and the linear portion 25 b constituting the concave portion 25. Play a role.

  As shown in FIGS. 1 and 2, a through hole 31 that penetrates the front and back surfaces of the lid 3 is formed in the substantially central portion of the convex portion 30, and a sealing means 32 is formed inside the through hole 31. Yes. The sealing means 32 is connected to the inner peripheral surface 31 a of the through-hole 31 at a plurality of positions so as to be ruptured and is detachable from the lid 3. A claw portion 321 that protrudes in the direction of, and a pressing portion 322 that is integrated with the fracture connecting portion 320 and the claw portion 321 so as to close the central portion of the through hole 31 and transmits a breaking force to the fracture connecting portion 320. I have.

  In the example of FIG. 3, the pressing portion 322 is formed in a plate shape and has a diameter that can be pressed with a finger. On the other hand, the nail | claw part 321 is formed in a pair in the example of illustration, and as shown in FIG. 3, each nail | claw part 321 stands up toward the container 2 using the press part 322 as a base. 321a, a protruding portion 321b that is formed wider than the standing portion 321a and protrudes in the plane direction of the ceiling surface 3a of the lid 3, and an inclined portion 321c that inclines in the direction of reducing the width from the protruding portion 321b toward the container 2. And. The width of the protruding portion 321 b is slightly larger than the inner diameter of the locking hole 230 formed in the container 2, and the width of the standing portion 321 a is smaller than the inner diameter of the locking hole 230.

  At one end of the lid 3, a locking piece 50 that forms the stopper portion 5 is formed. Correspondingly, a locked projection 51 to which the locking piece 50 is locked is formed at one end of the container 2. The blade case 1 is in a closed state when the locked protrusion 51 is locked to the locking piece 50, and is opened when the locked protrusion 51 is not locked to the locking piece 50. .

  When the hub blade 6 is housed in the blade case 1, as shown in FIG. 4, the hub blade 6 is housed in the housing body 2 from the opening 20, and the rotary shaft insertion hole 62 is loosely fitted in the convex portion 23. Then, the base 60 is placed on the receiving convex portion 22 of the container 2. Then, the end of the lid 3 is lifted with the connecting portion 4 as a fulcrum, and the locking piece 50 constituting the stopper 5 is locked to the locked protrusion 51, so that the lid 3 as shown in FIG. The opening 20 is closed and the blade case 1 is fixed in the closed state. At this time, the fracture connecting portion 320 constituting the sealing means 32 remains connected to the inner peripheral surface 31a of the through hole 31 shown in FIGS.

  Thus, when the blade case 1 is closed, the claw portion 32 is inserted into the locking hole 230 while being guided by the inclined portion 321c, and the protruding portion 321b enters the lower side of the thin plate 231. Then, since the width of the protruding portion 321 is larger than the inner diameter of the locking hole 230, the claw portion 321 is locked in the locking hole 230. That is, the container 2 and the lid 3 are sealed by the sealing means 32. Since the container 2 and the lid 3 are thus sealed by the sealing means 32, the manufacturer does not need to apply a tape so as to straddle the container 2 and the lid 3 as in the prior art. Moreover, since the thin plate 231 is formed with the slit 232, the thin plate 231 is easily bent and the claw portion 32 is easily inserted.

  On the other hand, when the hub blade 6 is taken out, the stopper portion 5 is pulled by pulling the locking piece 50 in the direction opposite to the pressing direction while pushing the pressing portion 322 downward with the finger toward the housing 2. The fixed state in the closed state is released to be in the open state. If it does so, the fracture | rupture connection part 320 will fracture | rupture between the internal peripheral surfaces 31a of the through-hole 31, the cover body 3 and the sealing means 32 will isolate | separate, and a sealing state will be cancelled | released. And the sealing means 32 remains in the container 2, as shown in FIG. At this time, since the outer diameter of the pressing part 322 is larger than the inner diameter of the locking hole 230 and the width of the upright part 321a is smaller than the inner diameter of the locking hole 230, the claw part 32 enters the lower part of the locking hole 230. 322 is placed on the convex portion 23.

  In this way, the user can release the sealed state of the container 2 and the lid 3 by pressing the pressing portion 322 to break the fracture connecting portion 320. There is no need to peel it off.

  Further, in a state where the fracture connecting portion 320 is not fractured, the sealed state has never been released. In this case, it can be determined that a new cutting blade is accommodated. On the other hand, in a state where the fracture connecting portion 320 is fractured, the sealed state is released, so that it can be determined that the cutting blade is not new.

  After the sealing means 32 is separated from the lid 3, the blade case 1 is selectively maintained in either the open state or the closed state only by operating the stopper portion 5.

  As shown in FIG. 7, when a plurality of closed blade cases 1 are stacked, the convex portion 30 formed on the lid 3 and the concave portion 25 formed on the container 2 are engaged. And rotation is prevented by the linear parts 30b and 25b shown in FIG.1 and FIG.2, and it will be in the stable state. In this case, the upper surface of the pressing portion 322 is at a position lower than the upper surface of the convex portion 30. Although FIG. 7 shows a state where the fracture connecting portion 320 is not broken, the blade case 1 can be similarly laminated even when the fracture connecting portion 320 is broken.

It is a perspective view which shows an example of a blade case. It is a perspective view which shows an example of a blade case and a cutting blade. It is a center longitudinal cross-sectional view of a blade case. It is a center longitudinal cross-sectional view of the blade case in which the hub blade was accommodated in the accommodating part. It is the center longitudinal cross-sectional view of the blade case which accommodated the hub blade and was in the closed state. It is the center longitudinal cross-sectional view of the blade case which made the state which opened the cover body after the hub blade was accommodated and sealed in the accommodating part. It is a partially broken sectional view which shows the state which laminated | stacked the blade case in which the hub blade was accommodated.

Explanation of symbols

1: Blade case 2: Container 20: Opening portion 20a: Bottom surface 20b: Wall portion 22: Receiving convex portion 23: Convex portion 230: Locking hole 231: Thin plate 232: Slit 24: Back surface 25: Concave portion 25a: Arc portion 25b : Linear part 3: Lid 30: Protruding part 31: Through hole 31a: Inner peripheral surface 32: Sealing means 320: Breaking connection part 321: Claw part 321a: Standing part 321b: Protruding part 321c: Inclined part 322: Pressing part 30: Convex part 30a: Arc part 30b: Straight line part 4: Connection part 5: Stopper part 50: Locking piece 51: Locking projection part 6: Hub blade 60: Base 61: Cutting blade 62: Rotating shaft insertion hole

Claims (4)

A blade case that houses a cutting blade in which a rotation shaft insertion hole is formed in the center,
A container having an opening for accommodating a cutting blade, a lid for closing and opening the opening, a connecting part for connecting the container and the lid so as to be openable and closable, and the opening being closed Including a stopper portion for switching between a closed state and an open state in which the opening is opened,
A convex part that is loosely fitted in the rotary shaft insertion hole of the cutting blade is formed in the container, and a locking hole is formed at the top of the convex part,
The lid is formed with a sealing means formed of a claw portion that is locked in the locking hole and a fracture connecting portion that detachably connects the claw portion from the lid. .   The blade case according to claim 1, wherein the sealing means is formed with a pressing portion that transmits a breaking force to the breaking connection portion. A method of using the blade case according to claim 1 or 2,
When the cutting blade is accommodated in the container and the opening is closed by the lid, the container is fixed to the closed state by the stopper and the claw is engaged with the locking hole. And the lid are sealed,
When the sealing is released, the fracture connecting portion breaks, the lid body and the sealing means are separated, and the closed state is released by the stopper portion to be opened, and the cutting blade is opened. How to use the blade case that can be removed.   The method of using the blade case according to claim 3, wherein the lid body and the sealing means are maintained in either the closed state or the open state by the stopper portion after being separated.

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