JP2011067567A - Tool for inserting knife blades - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conventional tool for inserting knife blades, to which a coming out preventing measure is given, has the following problem that the one in which the jaw top and insertion opening of a kitchen knife are shifted after inserting the kitchen knife is easy to insert the kitchen knife, but is difficult to pull out it, the one in which a cover is installed in the part of a handle requires time in taking the cover in and out, and moreover that the one in which locking is carried out by covering a part of the insertion opening has a complicated structure. <P>SOLUTION: A semicircular insertion part is formed in the top face of a boxlike body and a fixed insertion opening is opened circumferentially in the insertion part. Moreover, a semicircular lock member is rotatably installed on the inside of the insertion part and a moving insertion opening of the same shape as the fixed insertion opening is opened in a place, which is in agreement with the fixed insertion opening in the lock member. Further after storing the kitchen knife, a lock mechanism, in which the lock member does not turn, is given to the insertion part and the lock member. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a kitchen knife suitable for being attached to the back door of kitchen furniture such as a sink or a cooking table.

  First, the names of each part of the kitchen knife necessary for the subsequent description of the kitchen knife insertion will be briefly described. A kitchen knife generally consists of a wooden or resin part and a metal part. The wooden or resin part with a knife is a "pattern", the metal part is a "sword", the part with a blade of the blade is a "blade", a kitchen knife. The back part of the blade is called “Mine”, the neck part that puts the knife blade into the handle is called “the handle”, the part close to the handle base of the cutting edge is called “jaw”, and the tip part of the cutting edge is called “cutting edge” . Although there is no general name for the part from the jaw to the base of the handle, that is, the opposite part of the cutting edge, it is referred to as “upper jaw”, and the width from the blade edge to the peak is referred to as “blade width”.

  A kitchen knife is essential in the kitchen, and you should always use a kitchen knife when you cook. Therefore, in order to make it easier to take out the kitchen knife in the kitchen, a kitchen knife was attached to the back of the kitchen furniture such as a sink and a kitchen table. In the past, knife knives had only a number of insertion holes that allow the knife blade to pass through the horizontal surface but not the handle. This former knife insert has been used for many years because it was easy to take out by simply holding the handle of the knife and lifting it upwards. However, the ability to easily take out the kitchen knife in this way allows an infant who does not know the danger of a kitchen knife to easily take out the kitchen knife, and there is a risk that the infant will take out the kitchen knife and get injured. Therefore, many knife knives have been proposed so that infants cannot easily take out knives.

  A conventional knife knife with a preventive measure is made difficult to remove by rotating or moving the inserted knife and shifting the knife's jaw from the knife insertion opening (Patent Documents 1 to 3). A movable cover is installed in the part where the handle on the upper part of the insertion slot is located (Patent Documents 4 and 5), and a part of the insertion opening of the knife knife is closed to prevent the knife from coming off (Patent Documents) 6-8), etc.

  Japanese Utility Model Publication No. 2-112236   JP 2006-255429 A   JP 2007-222476 A   Japanese Utility Model Publication No. 5-48847   JP 2004-8675 A   Japanese Utility Model Publication No. 52-75548   JP-A-10-192174   JP-A-10-229947

  By the way, the conventional knife cutter has the following problems.

  A conventional knife insert that prevents the knife from slipping out of the jaw by moving the upper jaw from the insertion opening is easy to insert because the blade is inserted into the insertion opening visible from above when inserting the knife into the knife insertion. When removing the knife from the knife, the back side of the insertion slot is not visible, so it is difficult to align the chin on the knife with the insertion slot. In other words, this knife knife is difficult to remove when it is hurry when taking out the knife sharply because the upper jaw and the insertion opening do not coincide easily. In addition, when the knife is taken out, the upper part of the chin hits the back of the insertion slot, so that the vicinity of the back of the insertion slot may be chipped or cracked during use for a long time. Further, this knife knife may cause the knife on the chin and the insertion port to coincide with each other while the infant is playing with the knife, and the knife may come out.

  In addition, a knife knife that covers the part of the handle that protrudes above the conventional insertion slot with a cover is to remove the cover completely when taking out the knife, and then reattach the cover when the knife you used is inserted into the knife knife. Since it had to be attached, it took time to install this cover. The knife insert that covers this pattern part with the cover easily displaces, so that while the infant is touching the cover, the cover is displaced and the pattern part comes out, and the infant may pull out the knife. It was possible.

  And in order to prevent the knife from being easily removed, the one that blocks part of the knife insertion slot and prevents the knife from coming out locks the member that plugs part of the insertion slot. It is excellent. However, a conventional knife insert that closes a part of the insertion slot, for example, in Patent Document 6, after inserting the knife into the knife insert, the frame of the main body and the metal fitting for preventing removal must be locked with a key. Then, there were times when it was not locked. In addition, the knife insert of Patent Document 7 has a concave locking part that covers a part of the insertion slot, and the mechanism for sliding the locking member is complicated, so that the cost of making a knife knife is expensive. It was. Furthermore, the knife insert of Patent Document 8 is such that the retaining member on which the pinion is formed and the rack are engaged, and by moving the rack, the retaining member rotates to close a part of the insertion port, Since the structure is very complicated, not only is it time-consuming to make a kitchen knife, but it is also very expensive.

  The inventor of the present invention cannot easily remove a knife with a lock mechanism even if an infant plays with it. Therefore, if the lock mechanism has a simple structure, it becomes a knife with excellent safety, economy and productivity. The present invention was completed by paying attention to the above.

  In the present invention, a substantially semi-circular insertion portion is formed on the top surface of a box-shaped main body having a hollow inside, and a fixed insertion port through which the knife blade can be inserted is formed in the insertion portion. The guide groove is open from approximately the top of the insertion portion to one lower end of the insertion portion, and a guide groove is formed on the insertion portion along the circumference on the upper side of the insertion portion from the top of the insertion portion to the other lower end of the insertion portion. A locking member having a pivoting surface slightly smaller than the inner diameter of the insertion portion is formed inside the insertion portion. A movable insertion port having the same shape as the fixed insertion port is opened in the opening position of the lock member on the rotation surface, and the rotation surface moves in the guide groove. The operating projection is formed, and on the rotating surface, the lock member is closed. It is knife feed, characterized in that a stopper capable of locking part and the locking of the Oite insertion portion is formed.

  In the present invention, the unlocking position of the lock member is a position where the lock member is rotated to one side and an opening formed by the fixed insertion port of the insertion portion and the movable insertion port of the lock member is opened to the maximum. The knife blade is inserted into the knife knife. In the present invention, the closed position of the lock member is a position where the lock member is rotated in the opposite direction to the open position and the opening formed by the fixed insertion port of the insertion portion and the movable insertion port of the lock member is minimized. In this state, the infant cannot take out the kitchen knife stored in the kitchen knife. In other words, the locking portion and the stopper are locked to prevent the locking member from rotating. However, when the locking portion and the stopper are locked even in the open position, a fixed insertion port and a movable insertion port are formed. The large opening can be made stable, and the opening is always fully opened when the knife is inserted into the knife, so that the knife can be easily stored.

  The operation of the kitchen knife of the present invention having the above features is as follows. First, the operating projection is set to the open position, the fixed insertion port of the insertion portion and the movement insertion port of the lock member are aligned, and the opening of the insertion port is maximized. Then, after inserting the blade of the knife through this insertion port, the lock member is rotated to the closed position, and the insertion port formed by the fixed insertion port and the movable insertion port is made smaller. Then, the upper jaw of the knife is caught by the lower part of the fixed insertion port and cannot be removed. When this state is reached, the lock member is automatically locked, and the infant cannot easily take out the knife. And when releasing this locked state, it pushes down and pushes an operation protrusion, and makes it an open position.

  Also, when taking out the knife from the knife holder of the present invention, if the operating projection is set to the open position, the opening formed by the fixed insertion port and the movable insertion port becomes larger, so the handle is lifted upward with the handle of the knife and pulled sideways. It becomes possible to take out the knife easily.

  As described above, the kitchen knife of the present invention is not only completely locked to prevent the kitchen knife from being removed by a simple operation, but also safer than the conventional kitchen knife which is easy to manufacture because of its simple structure. It is excellent in productivity, economy and productivity.

  Exploded perspective view of the knife of the present invention   Perspective view of the knife of the present invention   The perspective view which looked at this invention knife insert from the back side   The perspective view of the present knife insertion explaining the insertion state of a kitchen knife   Central cross-sectional view of FIG.   Enlarged view of part X in FIG.   Enlarged view of part Y in FIG.   Front view of the knife of the present invention   Plan view   Same side view   AA line sectional view of FIG.   Sectional view of the BB line of FIG.   Front view of lock member   Same left side view   Plan view   Bottom view   Central cross-sectional view of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. By the way, in the knife insert of the present invention, the insertion opening of the kitchen knife is opened obliquely in the lateral direction, and the phrase is inserted into the insertion opening from the oblique lateral direction. In other words, the insertion slot is open in the direction of the dominant arm, for example, for the right-handed person. In the embodiment of the present invention, a knife for right-handed people will be described and expressed as right and left as seen in the drawings.

  A knife holder 1 according to the present invention includes a main body 2 and a lock member 3. The main body 2 has a box shape with a hollow inside, and an insertion portion 5 whose cross section protrudes in a substantially semicircular shape is formed on the upper surface 4 of the main body 2. As shown in FIG. 8, the insertion portion 5 starts from a flat upper surface 4 at the lower left end of the semicircular shape, and the other end of the insertion portion 5 reaches the middle of the semicircular shape. An inclined surface 6 is formed. The inclined surface 6 extends below the surface position of the upper surface 4, the lower portion 7 is bent, and the surface that rises upward from the lower portion 7 is a pattern placement surface 8. The pattern placement surface 8 is continuous with the upper surface 4.

  In the embodiment, the upper surface 4 of the box-shaped main body is slightly inclined to one side because it is easy to use when a plurality of insertion portions are formed on the upper surface. That is, when the knife is used by a right-handed person, as shown in FIG. 8, when the knife is inclined so that the right side is lowered, the position of the insertion part on the right side is lowered. When inserting a knife from the right, the insertion part on the right side will not interfere with the insertion. However, the upper surface does not have to be inclined if the insertion portion on the right side does not get in the way when the knife is inserted.

  One insertion portion 5 is provided with fixed insertion openings 9 and 9 at two locations parallel to the longitudinal direction. The fixed insertion ports 9, 9 open from the approximate top of the insertion portion to the lower portion 7 of the inclined surface 6 along the semicircular circumference of the insertion portion 5. The fixed insertion opening has a width and a length that can be easily inserted even with a knife having the largest blade thickness or a Japanese knife with a wide blade width among kitchen knife generally used at home. In the embodiment, two insertion portions are formed on the upper surface, and two fixed insertion openings are formed on one insertion portion, and this knife insertion can accommodate a total of four kitchen knife. In other words, the knife insert according to the present invention can accommodate more knifes by forming a large number of insertion portions and insertion openings.

  A guide groove 10 is formed in the center of the insertion portion 5. The guide groove opens along the semicircular circumference of the insertion portion in a direction opposite to the fixed insertion port, that is, a position slightly on the right side from the top of the insertion portion 5 to the lower left end of the insertion portion.

  As shown in FIGS. 11 and 12, on the back surface of the insertion portion 5, on both sides of the guide groove 10, a thick band locking portion 11 having a thickness greater than that of the insertion portion 5 is formed. . The locking portion 11 is formed from the lower left end of the insertion portion 5 to the approximate top of the insertion portion 5.

  The front plate 12 and the back plate 13 of the main body 2 are provided with shaft holes 14 and 14 at the center of the side surfaces of the insertion portions 5 and 5. The center of the insertion portion is the center of a semicircular circle inside the insertion portion. Further, a plurality of slits 15... Are cut through the front plate 12 and the back plate 13 of the main body 2. The slit does not generate mold inside by storing the wet knife in the kitchen knife even if the wind flows in from the slit and the kitchen knife dries quickly, and the moisture evaporated from the kitchen knife flows out to the outside. is there.

  At the appropriate positions on both sides of the surface plate 12, two in the embodiment, bowl-shaped screw holes 16, 16 having a small diameter at the top and a larger diameter at the bottom are drilled. The back plate 13 is provided with screw holes 17 and 17 having the same shape at the same positions as the screw holes 16 and 16 of the front plate 12. In this way, if the same shape screw holes are drilled in the same place on the front and back plates of the main body, when attaching the kitchen knife to the door of kitchen furniture, the front and back can be reversed, so it is right-handed It is possible to easily change the attachment state for a left-handed person. That is, the attachment state suitable for right-handed use, for example, the attachment state with the insertion opening opened to the right side as in the embodiment can be easily changed for the left-handed person. At this time, if you loosen the screw and lift the knife knife up slightly and pull it forward, the knife knife can be easily detached from the kitchen furniture, so change the front and back of the knife knife and insert the screw head into the large diameter part of the screw hole By lowering the knife knife, the screw is positioned in the small diameter portion of the screw hole. So if you insert a screwdriver from the front screw hole and tighten the screw, the knife knife can be attached to kitchen furniture in a state suitable for left-handedness

  A bottom plate 18 is detachably installed at the bottom of the main body 2. The bottom plate can be easily attached and detached by fitting a plurality of locking pieces 19... Into the locking grooves 20 formed in the front plate 12 and the back plate 13 of the main body 2. When the bottom plate is detachably installed in this way, the bottom plate is removed even if the food is stored while attached to the kitchen knife and it falls or scatters and the food stains the inside of the kitchen knife. This makes it easier to clean the dirty interior.

  The lock member 3 is made of resin, and a substantially semicircular outer side is a rotation surface 21. The radius of the lock member 3 is slightly smaller than the inner radius of the insertion portion 5, and the width thereof is also slightly smaller than the inner width of the insertion portion 5. Therefore, when the lock member 3 is attached to the inside of the insertion portion 3 of the main body 2 and the lock member 3 is rotated, the rotation surface 21 and the outer side of the lock member 3 hardly contact the back side of the insertion portion 5 of the main body 2. Or even if it contacts, it rotates in the state which does not become an obstacle of rotation of a lock member. Band-shaped support pieces 22 and 22 are integrally formed on both sides of the lock member 3 in a state of hanging from the center of the rotation surface 21, and the support pieces have elasticity. The support pieces 22, 22 are formed with a shaft portion 23 protruding at the center of the circle of the lock member 3. The shaft portion is fitted into the shaft holes 14 and 14 of the front plate 12 and the back plate 13 so that the lock member 3 can be rotated.

  The rotation surface 21 of the lock member 3 coincides with the fixed insertion ports 9 and 9 of the insertion portion 5 when the lock member 3 is attached to the main body 2 and then the lock member 3 is rotated to the leftmost position. The moving insertion openings 24 and 24 are opened there. And circular partition 25 ... is formed in the both sides of the movement insertion port 24,24. The partition may be semicircular instead of circular, but the circular partition has a larger area than the semicircular shape, so that the circular partition can smoothly guide the blade when inserting the knife.

  A tongue-like portion 26 extends from substantially the top of the rotation surface 21 to the end opposite to the moving insertion port 24, that is, the lower left end in the embodiment. The front side of the tongue-shaped portion 26 has a slightly smaller radius than the front side of the rotating surface 21, and the back side of the tongue-shaped portion 26 also has a slightly smaller radius than the radius of the back side of the rotating surface 21. That is, the tongue-like portion 26 is in a state of being slightly recessed from the rotating surface 21. As shown in FIGS. 14 to 16, cuts 27 and 27 are made between the rotating surface 21 and approximately 2/3 of the lower portion of the tongue-like portion 26. Therefore, the lower portion of the tongue-like portion 26 made of resin has elasticity due to this incision, and even if the tongue-like portion is pushed inward, the tongue-like portion 26 returns to its original state.

  An operating projection 28 is formed so as to protrude from the insertion portion 5 at a position slightly lower than the lower end in the lower left of the tongue-like portion 26. The actuating projections move against the elasticity of the tongue 26 while pushing the tongue 26 inward with a finger. In addition, a protruding stopper 29 is formed on the tongue 26 at a position below the operating projection 28. The height of the stopper is substantially the same as the thickness of the locking portion 11 of the main body 2 described above. Accordingly, when the stopper 29 is positioned beyond the upper end and the lower end of the locking part 11, the stopper 29 is locked with the locking part 11 of the insertion part 5. This is the locked state. This locked state is indispensable in the closed position of the lock member so that the infant does not easily take out the knife from the knife insert, but may be in the locked state also in the open position of the lock member.

  Next, the assembly of the kitchen knife having the above structure and its operating state will be described.

  First, the bottom plate 18 of the main body 2 is removed, and the lock member 3 is inserted into the insertion portion 5 from the lower portion of the main body 2. At this time, the support piece 22 on which the shaft portion 23 is formed is formed integrally with the rotation surface 21 of the lock member 5 and has elasticity, so that the shaft portion and the front plate 12 of the main body 2 until the shaft portion reaches the shaft hole. Although pressed against the inner side of the back plate 13, when the shaft portion 23 reaches the shaft hole 14 of the main body 2, the shaft portion 23 is fitted into the shaft hole 14 due to the elasticity of the support piece 22. Thereafter, the lock member 5 rotates in a stable state without falling.

  When the lock member 3 is attached to a predetermined position of the main body 2, the operation protrusion 28 protrudes from the guide groove 10 and can move in the guide groove. When the operating projection 28 is moved, the lock member 3 rotates about the shaft portion 23. During this rotation, until the operating projection 28 reaches the upper end or the lower end of the guide groove 10, the stopper 29 formed on the tongue-like portion 26 is the thick band engaging portion 11 formed on both sides of the back surface of the guide groove. It has been pressed.

  When the operating projection 28 reaches the lowermost end of the guide groove 10, the stopper 29 is detached from the lower portion of the thick locking portion 11 as shown in FIG. 7 which is an enlarged view of the Y portion in FIG. 11 is locked to the lower end. In this state, the fixed insertion port 9 and the movable insertion port 24 of the main body 2 are completely coincident with each other, and both of them become large openings. Even if the lock member is rotated to the right by its own weight or some impact, the stopper Is locked to the lower end of the locking portion, so that it is in a locked state in which it never rotates. To release this locked state, the operating projection 28 is pushed against the elasticity of the tongue 26 to push the tongue inward, and the stopper 29 is released from the locking portion 11. Then, the operating projection 28 is moved upward while being pushed.

  When the operating projection 28 is moved to the uppermost end of the guide groove 10, the stopper 29 is detached from the upper portion of the thick locking portion 11 as shown in FIG. 6 which is an enlarged view of the X portion in FIG. 11 is locked to the upper end. In this state, the fixed insertion port 9 and the movable insertion port 24 of the main body 2 partially coincide with each other, and the opening formed by both of them is minimized. And even if the lock member tries to turn to the left due to its own weight or some impact, the lock member 3 is in a locked state in which it does not rotate because the stopper is locked to the upper end of the locking portion.

  Next, the case where the knife is stored in the knife holder of the present invention that operates as described above will be described. First, the operating projection 28 is set to the lowest end of the guide groove 10, and the opening formed by the fixed insertion port 9 of the insertion portion 5 and the movable insertion port 24 of the lock member 3 is maximized. Thereafter, the kitchen knife that has been used for cooking as shown on the right side of FIGS. At this time, since there are partition walls 25, 25 on both sides of the movable insertion opening 24 of the lock member 3, the blade of the knife to be inserted is guided to these partition walls and smoothly enters the main body 2. When the blade of the knife enters the main body 2, the handle portion of the knife hits the fixed insertion opening 9 and the insertion is stopped, so that the handle is lowered to the handle placing surface 8 by its own weight. At this time, the kitchen knife is placed along the handle placing surface 8 whose handle is slanted.

  Thereafter, the operating projection 28 at the lowermost left end of the guide groove 10 is pushed to release the locked state between the lowermost end of the locking portion 11 and the stopper 29, and the operating projection 28 is moved upward along the guide groove 10. Then, as shown on the left side of FIGS. 4 and 5, the stopper 29 moved along the locking portion 11 is locked with the upper end portion of the locking portion 11, and the rotation of the lock member 3 is locked. In this state, the opening formed by the fixed insertion port 9 and the movable insertion port 24 is minimized so that the knife cannot be removed.

  Then, when taking out the knife from the knife knife that has been stored and locked, the operating protrusion 28 located at the top of the guide groove 10 is pushed to unlock the upper end of the locking portion 11 and the stopper 29, The operating protrusion 28 is moved along the guide groove 10 to the lower left end. Then, since the fixed insertion port 9 of the insertion part 5 and the movable insertion port 24 of the lock member 3 coincide with each other and the opening is maximized, the knife can be easily taken out by pulling it to the right side while lifting the knife slightly.

  In the embodiment of the present invention, as a mechanism for locking the rotation of the lock member, a thick band locking portion formed on both sides of the guide groove and a protruding stopper locked to the locking portion are used. Any shape can be adopted as long as the lock mechanism prevents the lock member from easily rotating after the knife is stored in the knife holder. For example, a hole may be formed in the back surface of the insertion portion as the locking portion, and a columnar protrusion that can be fitted into the hole may be formed as a stopper. In the embodiment, the stopper is formed as an elastic tongue-shaped portion. However, a spring may be installed on the stopper itself to lock or release the locking portion.

DESCRIPTION OF SYMBOLS 1 Knife insertion 2 Main body 3 Lock member 4 Upper surface 5 of main body Insertion part 9 Fixed insertion port 10 Guide groove 11 Locking part 12 Front plate 13 Back plate 14 Shaft hole 18 Bottom plate 21 Rotating surface 22 Supporting piece 23 Shaft part 24 Moving insertion Mouth 26 Tongue 28 Actuation projection 29 Stopper

Claims (4)

  A substantially semi-circular insertion part is formed on the upper surface of the box-shaped main body having a hollow inside, and a fixed insertion port through which the knife blade can be inserted is inserted along the circumference above the insertion part. The guide groove opens from the approximate top of the insertion portion to one lower end of the insertion portion, and the guide groove extends from the approximate top of the insertion portion to the other lower end of the insertion portion along the circumference on the upper side of the insertion portion. In addition, a locking portion is formed on the back side of the insertion portion, and a lock member having a rotation surface slightly smaller than the inner diameter of the insertion portion is rotatable inside the insertion portion. A movable insertion opening having the same shape as the fixed insertion opening is opened on the rotation surface at the opening position of the lock member, and an operation protrusion that moves in the guide groove is formed on the rotation surface. In addition, it is inserted in the closed position of the lock member on the rotating surface. Knife insertion, characterized in that the locking unit and the locking can stop parts are formed.   2. The knife insert according to claim 1, wherein the engaging portion formed on the back side of the insertion portion is a thick band made thick from a substantially top of the insertion portion to a lower end of the protruding portion.   The knife stopper according to claim 1, wherein the stopper is a protruding object that can be locked to the locking portion.   The kitchen knife according to claim 1, wherein a tongue portion having elasticity is formed on the rotating surface.

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