JP2012232009A - Cake cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cake cutter finely cutting a whole cake into cut cakes with equal division without impairing commercial value of the cut cakes, and allowing compact storage in a case or the like by folding the cake cutter when not using it.SOLUTION: This cake cutter includes: (a) a vertical central shaft 1; (b) three or more plate-like opening/closing legs 2 of nearly same shape pivotally supported to the central shaft 1 such that respective upper base end parts 2 can be radially developed and be folded in a bar shape, wherein lower parts formed such that respective lower end parts 2b when having developed the legs 2 abut on the same plane rise astride the whole cake K that is a cutting target; and (c) wires 4 radially stretched with the perpendicular line of the central shaft 1 as the center among the lower end parts 2b of the respective opening/closing legs 2 when having developed the legs 2.

Description

  The present invention relates to a cake cutter, and more particularly to a cake cutter used when a cylindrical hall cake is cut radially equally from the center in a cake store or the like.

Conventionally, at the cake point, when the whole cake is equally divided radially from the center, the person holding the work has a thread in both hands and the work is cut by repeating the work of pulling the thread and separating the cake. Since this cutting work is carried out with a scale, skillful skill is required, but even a skilled pateche is difficult to divide uniformly.
Therefore, there has been a demand for the emergence of a device that can accurately and easily divide a cake into equal sizes without depending on the skills of the worker.

As means for that purpose, a “cake box” in Patent Document 1 using a single thread and an “equal distributor” in Patent Document 2 using an angle adjusting plate with a string are proposed.
Patent Document 3 below proposes a cake cutter in which arms are attached in a U-shape to both ends of a plurality of rod-shaped bodies whose centers intersect with a holder, and a thread is stretched between the ends of the arms. . This cake cutter made it possible to cut the cake into equal parts accurately and easily.

Japanese Utility Model Publication No. 5-91380 Japanese Utility Model Publication No. 5-20898 JP 2009-125823 A

However, since the “cake box” of Patent Document 1 described above is to cut up and down a single thread drawn from the center, it is time-consuming and cannot be divided into equal parts at an accurate angle. Moreover, even if the "equal divider" of patent document 2 determines the angle of a cut cake one by one and can cut it separately, it cannot cut at once. And to use it for business use in cake shops, the angle setting of the thread and string to cut equally is very troublesome, the work efficiency is bad, and the strut with one end of the thread connected to the center of the whole cake Since the structure is inserted, damage to the center of the cake is unavoidable, and as a result, the appearance of the cut product is impaired and the product value is lost.
Further, in the “cake cutter” of Patent Document 3 above, damage to the center of the cake is eliminated by not inserting a support column into the center of the whole cake, but the connection and angle setting with the holding tool are troublesome, and the cake If the thread is pulled up to remove the thread after it is cut, the thread will be pulled out so as to drag the side of the cut cake. It was difficult to use for business purposes.

  Therefore, the present invention provides a cut cake having a good appearance from the whole cake and can be used in a cake store without impairing the value of the product, and can be easily and accurately cut evenly and is not used. An object of the present invention is to provide a cake cutter that can be folded and stored compactly in a case or the like.

  In order to solve the above-mentioned problems, according to claim 1 of the cake cutter of the present invention, a) a vertical central axis, and b) each base end of the upper part can be radially expanded and folded into a rod shape. Three or more substantially open and close plate-like opening and closing parts that are pivotally supported by the central axis and formed so that the lower ends when they are deployed are in contact with each other on the same plane. A leg, and c) a wire rod extending radially about the perpendicular of the central axis between the lower ends of the open / close legs when deployed.

  According to a second aspect of the present invention, in the above invention, the lower end portion of each of the open / close legs is bent sideways to form a stepping portion that presses down the wire at the lower end, and the open / close legs overlap in a bar shape. In this case, the length of each open / close leg is gradually increased by an amount corresponding to the thickness of each open / close leg so that each stepping portion overlaps in a radial direction centered on the central axis.

  The invention described in claim 3 is characterized in that, in each of the above inventions, a wire rod attaching / detaching means for detachably attaching an end portion of the wire rod to an intermediate portion of each opening / closing leg is provided.

  According to a fourth aspect of the present invention, in the above invention, the wire attaching / detaching means is provided with a hook plate provided with a hook insertion hole at an intermediate portion of each opening / closing leg, and the wire is hooked on the front side. The present invention is characterized in that a threaded hook having a wire hooking portion and a screw portion on the rear side is inserted into the hook insertion hole, and a female screw is screwed to a screw portion protruding upward.

  The invention according to claim 5 is provided with a wire rod restricting portion for fixing the length in a state where the wire rod stretched between the lower end portions of the respective opening and closing legs when being expanded is drawn and drawn in each of the above inventions, Each open / close leg can be fixed at the unfolded position.

  The invention according to claim 6 is characterized in that, in each of the above-mentioned inventions, an opening / closing leg fixing means is provided at a base end portion of each opening / closing leg so that the opening / closing leg can be fixed in an unfolded state.

  According to a seventh aspect of the present invention, in the above invention, the opening / closing leg fixing means is overlapped using a central shaft having a screw head at one end and a screw portion at the shaft portion on the other end side. A female screw is screwed into the threaded portion of the central shaft that is inserted into and protruded from each pivotal support hole at the base end of the open / close leg, and the open / close leg can be fixed by tightening the female screw. .

  The invention described in claim 8 is characterized in that, in each of the above inventions, an opening / closing leg positioning means is provided at a base end portion of each of the opening / closing legs so that the opening / closing legs can be positioned at equal intervals.

  According to a ninth aspect of the present invention, in the above invention, the opening / closing leg positioning means is provided with a stopper formed at an equal degree set at the base end portion of each opening / closing leg, and each opening / closing leg is expanded by deployment of each opening / closing leg. The stopper provided at the base end portion hits a part of the base end portion of the adjacent opening / closing leg and is restrained at the same interval so as to be deployable.

  According to a tenth aspect of the present invention, in the above invention, the opening / closing leg positioning means is provided by overlapping a horizontal circular substrate having a pivotal support hole penetrating the central axis at the center portion on the opening / closing leg base end portion. The base end of each open / close leg is provided with a protrusion protruding toward the circular substrate, and the circular substrate is provided with the protrusion between the open / close legs at an equally divided position around the pivot hole. It is characterized in that a positioning restraint portion is provided which enables restraint and release of restraint depending on the size of the gap difference.

  The invention according to claim 11 is the cake cutter according to any one of the above-mentioned inventions, wherein meat stealing holes are formed at intervals in each of the opening and closing legs.

  The invention described in claim 12 is characterized in that, in each of the above inventions, a grip portion is provided on an upper portion of the central shaft.

  The invention described in claim 13 is characterized in that, in each of the above inventions, a thin stainless steel wire is used as the wire.

In the cake cutter of the present invention, a plurality of wire rods can be stretched radially from one central point on the lower end of the developed opening / closing leg. And by putting the wire rod on the whole cake and pushing it down as it is, it is possible to separate a small cut cake from a large whole cake at a time. For this reason, special skill is not required, and it becomes possible to efficiently cut into equal amounts from the center of the whole cake.
After cutting the cake, you can easily transfer the cut cake to another plate by inserting a cake server etc. between each open and closed leg with the wire placed under the cake without lifting it up It becomes. If it takes out in this way, it will become possible to provide a cut cake in the state of good appearance, without generating the wire drag | scratch damage to a cut surface.

In addition, when not in use, each opening / closing leg can be folded so as to overlap like a single bar, making it compact and easy to carry and store.
And if the number of cakes to be cut is different, use the one with the number of opening and closing legs according to the number to distribute, and stretch the wire rod on each opening and closing leg, all the cut cakes of that number It becomes possible to make it uniform.
In addition, when using a large number of open / close legs, a single cake cutter can be used for various angles by stretching wire rods on as many open / close legs as necessary without stretching all open / close legs. It is also possible to divide into

In the invention described in claim 2, the wire can be easily passed and stretched under the stepped portion provided at the lower end of each of the opening and closing legs, and the wire reaches the lowest part of the whole cake when cut. This makes it possible to cut cleanly without leaving the bottom part.
The stepping portion is bent laterally at the lower end of each opening / closing leg, and when each opening / closing leg has the same length, when each opening / closing leg is closed, each stepping portion hits each other and each opening / closing leg However, in the present invention, the lengths of the respective opening and closing legs are gradually increased by the thickness of each of the opening and closing legs, so that they can be integrated so that they overlap each other when the opening and closing legs are closed, The whole can be folded compactly.

In the invention according to claim 3, the end of the wire can be easily attached to and detached from the intermediate part of the opening and closing leg by the wire attaching and detaching means provided at the intermediate part of each opening and closing leg.
And it becomes possible to remove the wire and remove the opening / closing leg and the wire separately from the cake material adhering to the cake by cutting the cake.
Further, the wire rod can be easily stretched before entering the cutting operation by the wire attaching / detaching means, so that the operation can be quickly started.

  According to a fourth aspect of the present invention, the wire rod attaching / detaching means is inserted into a hook insertion hole of a latch plate provided at an intermediate portion of each opening / closing leg, with a threaded hook having a wire hooking portion and a screw portion. Thus, the wire rod can be easily attached to and detached from the opening / closing leg by hooking the wire rod to the wire hooking portion and screwing the female screw into the screw portion protruding above the hook insertion hole.

  In the invention according to claim 5, the base end portion of each opening / closing leg is narrowed by drawing the wire stretched between the lower end portions of the opening / closing legs when unfolded by the wire rod restricting portion. It is possible to apply a load to each other and to fix each of the opened opposing open / close legs at the deployed position.

  According to a sixth aspect of the present invention, the base end of the open / close leg is fixed with the open / close leg fixing means in a state where the open / close leg is unfolded, and the open / close leg is held in a fixed state. It becomes possible to maintain it in an independent state.

  In the seventh aspect of the present invention, each pivot of the base end portion of each of the stacked open / close legs is provided with a screw shaft at one end and a central shaft with a screw portion at the other end side shaft portion. The open / close leg fixing means that penetrates the support hole and screwes the female screw into the screw portion makes it possible to easily fix the open / close leg in a deployed state by simply tightening the female screw.

  In the invention according to claim 8, the opening / closing leg positioning means is provided at the base end portion of the opening / closing leg, so that each opening / closing leg can be easily positioned and fixed around the central axis at equal intervals. Is possible.

  According to a ninth aspect of the present invention, the stopper provided at the base end portion of each open / close leg due to the development of the open / close leg hits a part of the base end portion of the adjacent open / close leg and is restrained at the same degree interval. As a result, the deployed opening / closing leg can be positioned and fixed equally.

In a tenth aspect of the present invention, a horizontal circular substrate provided with a pivotal support hole penetrating the central axis at a central portion, and a protrusion protruding toward the circular substrate at a base end portion of each opening / closing leg Since the positioning restraint portion is provided at an equally divided position around the pivot support hole, the position of the opening and closing leg is restrained by reducing the difference in the distance between the base end portions of each opening and closing leg, The constraint can be released by increasing the gap difference.
As a result, each of the open / close legs can be easily positioned and fixed at equal intervals around the central axis.

  In the invention described in claim 11, by forming the meat stealing holes at regular intervals in the opening and closing legs, it is possible to reduce the weight of the opening and closing legs without substantially reducing the strength.

  In the twelfth aspect of the present invention, it is possible to limit the portion held by the hand to the gripping portion by providing the gripping portion on the upper part of the central axis. Thus, it is possible to perform the cutting work hygienically with one hand without any contact.

  In the invention of claim 13, the thin stainless steel wire used as the wire is strong and strong and is not easily rusted, and when the wire is wound around and stopped at one central point, it becomes difficult to form a large knob shape at that portion. It can be cut neatly without breaking the center of the cake, and even if it is pushed down from the top of the cake, the wire rod does not break and can be used for cutting work with peace of mind.

It is a perspective view which shows the use condition which expand | deployed the opening-and-closing leg of this invention, and stretched the wire. It is a vertical side view which shows the state which expand | deployed the opening-and-closing leg. It is a top view which shows the state with which the opening-and-closing leg overlapped. It is a front view which shows the state with which the opening-and-closing leg overlapped. It is a rear view which shows the state with which the opening-and-closing leg overlapped. It is a top view which shows the state which expand | deployed the opening-and-closing leg. From bottom to bottom, (A) shows the lowermost open / close leg, (B) shows the upper open / close leg, (C) shows the upper open / close leg, and (D) shows the upper open / close leg. It is a top view of each component which shows a leg. (E) shows the upper open / close leg in FIG. 6 (d), (f) shows the open / close leg above, (g) shows the open / close leg above, and (h) shows the upper open / close leg. It is a top view of each component which shows the opening-and-closing leg. It is a top view which shows the state which expand | deployed the opening-and-closing leg of the principal part of the opening-and-closing leg positioning means. Among the components of the opening / closing leg positioning means of FIG. 9, (a) shows a lower circular substrate, and (b) is a plan view showing an upper step substrate. Among the components of the opening / closing leg positioning means in FIG. 9, (a) indicates the lowermost opening / closing leg, (B) indicates the upper opening / closing leg, (C) indicates the upper opening / closing leg, (D) indicates the open / close leg above it, (e) indicates the open / close leg above, (f) indicates the open / close leg above, (g) indicates the open / close leg above, (h) indicates It is a top view which shows the principal part of each component which shows the uppermost opening-and-closing leg.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present invention, as shown in FIG. 1, a wire rod 4 is stretched around a lower end portion 2b of each opening / closing leg 2 rotated and developed around a vertical central axis 1 and placed on a flat base plate D. This is a cake cutter that divides the whole cake K into small pieces by pushing down the wire 4 stretched over the whole cake K.

The cake cutter requires at least three opening / closing legs 2 in order to be able to stand on its own.
In order to stretch the wire 4 so as to pass through almost one point at the center of each opened and closed leg 2, the number of the wires 4 is an even number such as four, six, and eight.
When the number of the open / close legs 2 is an odd number, one of the wires 4 to be used is folded back from the center so that the length from the center to the lower end 2b of each open / close leg 2 is all equal. A wire rod 4 is attached to the opening / closing leg 2.
Since the whole cake K is usually cut into small one-sixth or one-eighth so that it is easy to eat, the case where there are eight opening / closing legs 2 as shown in FIG. 1 will be mainly described below. .

As shown in FIG. 1, each open / close leg 2 is formed of a metal plate, such as stainless steel, which is not easily rusted and is vertically arranged and twisted so that a portion near the end portion is bent 90 degrees to form a base end portion 2a horizontally.
Then, the lower part from the middle is formed to be curved or bent (not shown) in the same shape with almost the same length, and as shown in FIG. 4 and FIG. The open / close legs are formed in a substantially similar shape so as to form a single curved bar.
The base end portion 2a of the opening / closing leg 2 is formed in a substantially circular shape and is provided with a pivotal support hole 2d at the center, and a single central shaft 1 is passed through each pivotal support hole 2d to pivot the entire opening / closing leg 2. Support.
As shown in FIG. 6 and FIG. 8, a bent reinforcing portion 22 that is bent horizontally is provided at a twisted portion that connects the intermediate portion 2c of the opening / closing leg 2 to the base end portion 2a. It is good to provide.

When the open / close leg 2 is rotated, as shown in FIGS. 3, 4 and 5, the open / close legs 2 overlap each other like a single curved bar, and FIG. 1 and FIG. As shown, each of the eight openable / closable legs 2 is restrained at a constant angular interval of 45 degrees by the deployment fixing portion 3 provided at the base end portion 2a, and is in a deployed state as if the bone of the umbrella is opened. Each open / close leg 2 is formed as described above.
When the plate width is widened to increase the strength of the opening / closing leg 2, it is possible to reduce the entire weight by reducing the strength without substantially reducing the strength by forming the meat stealing holes 8 at regular intervals.

As shown in FIG. 1, when the opening / closing leg 2 is developed around the central axis 1, the lower end portion 2 b of each opening / closing leg 2 is brought into contact with the flat base plate D to be self-supporting, Each lower end portion 2b is in contact with the same plane and has a size capable of straddling without contacting the target hole cake K.
That is, the eight open / close legs 2 are pivotally supported on the central shaft 1 such that the upper base end portions 2a can be radially expanded and folded in a rod shape, and the plate surfaces are in close contact with each other. The direction toward the central axis of the plate surface 2 is pivoted by shifting from the center of the central axis by the thickness of each open / close leg 2. And let the lower part formed so that each lower end part 2b may be contact | abutted on the same plane when it expand | deployed shall be substantially the same shape which stood up across the hole cake K which is a cut object.

The base end portion 2a of the opening / closing leg 2 is provided with a deployment fixing portion 3 for holding the deployed state when the opening / closing leg 2 is deployed by rotating around the central axis 1.
The structure of the unfolding fixing part 3 is a structure that can maintain the state in which each open / close leg 2 is closed and compact (the state in FIG. 3) and the state in which the opening and closing leg 2 is largely unfolded to be cut (the state in FIG. 1). Various forms are possible.

  As shown in FIG. 2, the basic configuration of the unfolding fixing portion 3 is as follows. One end portion is provided with a flange portion, a screw head 1b and other retaining portions, and the other end is tightened with a screw portion 1a and a cam. Using the central shaft 1 provided with a portion, the central shaft 1 is passed through the pivot hole 2d of the base end portion 2a of each of the opening and closing legs 2 which are overlapped, and each opening and closing leg 2 is tightened to protrude outward. This is a form in which the front part of the base end part 2a can be tightened together.

  In the deployment fixing portion 3 in the form of FIG. 2, a screw head 1b is formed on one side as the central shaft 1, and a screw or a bolt provided with the screw portion 1a on the other side is used. Then, the central shaft 1 is inserted from below into the pivotal support hole 2d of the base end 2a of each of the opening and closing legs 2 that are overlapped, and a female screw is integrally provided at the lower portion of the threaded portion 1a protruding upward. The gripping part 9 is screwed and each opening / closing leg 2 is fixed in a tightened state by rotation of the gripping part 9.

  In this embodiment, the female screw is loosened by interposing the spiral spring 36 between the base end 2a of the lowermost open / close leg 2 and the base end 2a of the second open / close leg 2 from the bottom above. Since the base end portions 2a are kept pressed with a constant force even when they are folded, it is possible to prevent the open / close legs 2 from being closed or opened at a stretch.

And if each opening-and-closing leg 2 is expand | deployed and it fixes with the said expansion | deployment fixing | fixed part 3, the wire 4 will be stretched between the lower end parts 2b of each opening-and-closing leg 2 which faced. In that case, each wire 4 cross | intersects in the center of each opening-and-closing leg 2 of an unfolded state, and connects the intersection part to one point.
If the knot is large, a large resistance is locally generated at the intersection when the cake is cut, so that there is a risk of damaging the soft cake and losing its shape. For this reason, the knot should be as small as possible. For example, by winding one last stretched wire, the crossing portion of the wire rods can be tied to one point as small as possible.

  In addition, the wire 4 is a high tensile strength material that can give a strong tension so that it does not easily loosen after being stretched. Also, since the wire 4 is used as a blade for cutting a cake, the thickness and sharpness of the cake decreases and the cake is crushed. Therefore, it is preferable to use as thin a nylon thread as possible, a thin wire, or a thin stainless steel wire 4a. If a plurality of thin wires 4a are used, the center of each wire 4a is crossed. When the part is wound around one point, the winding is crushed and does not become a large lump. For this reason, it is possible to avoid generating a large resistance to the center part of the whole cake K when pushing the cake, so it is possible to cut the cut cake with a minimum of breakage of the sharp edge of the cut cake. It becomes.

  When such a wire 4 is stretched on the opening / closing leg 2, if the wire 4 is stretched below the lowermost end of each opening / closing leg 2, the wire 4 can reach the bottom of the cake with respect to the cake. Can be cut. As for this stretching method, it is effective to pass the middle part of the wire 4 to the lower end 2b of each open / close leg 2 and bend it, and then fix the end of the wire 4 to the intermediate part 2c of the open / close leg 2 It is.

In order to stably stretch the wire 4 on the lower end 2b of each opening / closing leg 2, a stepping portion 10 having a shape capable of pressing down the wire 4 on the lower end 2b of each opening / closing leg 2 is provided. good.
Then, the wire 4 can be easily stretched downward from the lowermost ends of the open / close legs 2 by passing the intermediate portion of the wire 4 below the stepping portion 10 and bending it upward.

  As for the method of fixing the end portion of the wire rod 4 to the open / close leg 2, the wire rod attaching / detaching means 5 is provided by a method in which the intermediate portion 2c of the open / close leg 2 is fastened with a knot on a V-groove, a direct binding method or the like. It is possible.

For example, as shown in FIGS. 1 and 2, the wire rod attaching / detaching means 5 can be provided with a latch plate 11 at an intermediate portion 2 c of each opening / closing leg 2 so that the wire rod 4 can be attached and detached.
The latching plate 11 is formed with a stepping portion 10 that bends the lower end 2b of each of the opening / closing legs 2 laterally to press the wire 4 downward at the lower end. At that time, when the open / close legs 2 are overlapped in a bar shape, the length of the open / close legs 2 is set to be equal to the plate thickness of the open / close legs 2 so that the stepping portions 10 overlap in the radial direction around the central axis 1. The latch plate 11 is formed so as to be gradually increased so that the plate surface of the latch plate 11 overlaps in the radial direction from the central axis 1 with a slight shift by the thickness of the plate.
In this embodiment, a hook insertion hole 13 is provided in the plate surface 11a of the retaining plate 11 toward the stepping portion 10, and the hook insertion hole 13 includes a wire hooking portion 14a and a screw portion 14b. A threaded hook 14 is formed so that it can be inserted, and the threaded hook 14 is inserted from below the hook insertion hole 13, and a female screw 15 is screwed onto a threaded portion 14 b protruding upward.
Then, the end of the wire rod 4 is hooked on the wire hooking portion 14a of the threaded hook 14.

In the wire rod attaching / detaching means 5, when the wire rod 4 is attached to the opening / closing leg 2, it passes under the stepping portion 10 provided at the lower end 2 b of the opening / closing leg 2, and the female screw 15 is rotated to attach the screw. By pulling up the end of the wire rod 4 that is hooked on the wire hooking portion 14a of the hook 14 and applying and pressing down an appropriate tension that prevents the wire rod 4 under the stepping portion 10 from coming off. It will not come off easily.
Further, if the wire rod 4 is loosened by rotating the female screw 15, the wire rod 4 can be easily removed.

  In order to prevent the wire rod 4 from coming off from below the stepping portion 10, a V-shaped hooking groove 12 is provided in the upper portion of the stepping portion 10 and the wire rod 4 is hung on the V-shaped hooking groove 12. It is possible to prevent the wire 4 from being easily detached from under the attaching portion 10.

  Further, the hook insertion hole 13 can be provided with a slit 13a that opens to the plate surface 11a of the retaining plate 11, and the threaded hook 14 can be attached to the threaded hook 14 while the female thread 15 is still screwed. Instead of being inserted from below the hook insertion hole 13, it is possible to pass the slit 13 a and attach it, and when the cake 4 is cut, the wire 4 is attached to each opening / closing leg 2 and removed when stored. Can be done more easily.

The wire 4 used between the open / close legs 2 differs depending on the number of open / close legs 2.
As shown in FIG. 1, when eight opening / closing legs 2 are used, four wires 4 are used. In this case, the hall cake K to be cut is divided into eight pieces, and the cut angles of the cut cakes are all equal to 45 degrees in the central portion.
Further, when six open / close legs 2 are used, three wire rods 4 are used. In this case, the whole cake K is divided into six pieces, and the angle of the cut cake becomes equal to 60 degrees.
Note that the number of assignments is not limited. For example, even in the case of eight open / close legs 2, if two wire rods 4 are used, the angle of the cut cake can be obtained evenly at 90 degrees. It is done.
In the case of six open / close legs 2, first use two wire rods 4 for the open / close leg 2, first stretch one between the open / close legs 2, and the other one folded back at the center. Can be stretched to 120 degree equally, and three equal cut cakes can be obtained.

Next, the deployment fixing part 3 provided at the base end part 2a of the opening / closing leg 2 will be described.
The unfolding fixing part 3 has a structure having a function capable of being restrained to a certain opening angle with the central axis 1 as the center, like a framework of an umbrella in which each opening / closing leg 2 is opened.
As the restraining means, an opening / closing leg fixing means 6 for fixing the opening / closing leg 2 in the unfolded state and an opening / closing leg positioning means 7 for fixing the opening angle between the opening / closing legs 2 at equal positions are provided. .

  In order to fix the open / close leg 2 in the unfolded state, as shown in FIGS. 1 and 2, the wire rod 4 stretched between the lower end portions 2b of the open / close legs 2 when unfolded is used as the latch plate. Each open / close leg 2 is provided by screwing a female screw 15 to the threaded hook 14 attached to the screw 11 and rotating the female screw 15 to fix the length in a state where the female screw 15 is drawn inward. Can be fixed at the unfolded angle as it is.

The other opening / closing leg fixing means 6 will be described below.
Further, the open / close leg fixing means 6 may be structured to press the base end portion 2a of each open / close leg 2 from above and below the central shaft 1 and fix each open / close leg 2 by a frictional force.
In such a structure, as shown in FIG. 2, a central shaft 1 having a screw head 1b formed on one end and a screw portion 1a formed on the other end is used, and the base end portion of each stacked opening and closing leg 2 is used. It is possible to have a structure in which the pivot support hole 2d of 2a is penetrated from below through a washer, and a female screw is screwed onto the screw portion 1a protruding above the pivot support hole 2d.
In this structure, the base end portions 2a of the open / close legs 2 overlapped by the screw heads 1b and the female screws are firmly clamped and pressed from above and below to fix the open / close legs in the unfolded state.

In FIG. 2, which shows this form, the female screw is a female screw embedded and integrated in the lower part of the grip portion 9, and each opening / closing leg 2 is rotated by the rotation of the grip portion 9 relative to the screw portion 1 a of the central shaft 1. Can be tightened together.
If the main body portion of the grip portion 9 is made of plastic or wood and has a round shape that can be picked up by hand, it can be grasped and the cutting operation can be performed hygienically.

  Although not shown in the drawings, the holding portion 9 may not be provided with a female screw, but may be structured such that each opening / closing leg 2 can be tightened using a clamp, a cam or the like connected to the central shaft 1. It is.

Further, the opening / closing leg fixing means 6 may have another form.
For example, as shown in FIGS. 6, 7, and 8, the base end portion 2 b of the lowermost opening / closing leg 2 forms a circular circular plate portion 16, and 45 degrees around the circular rice portion 16. The positioning groove 17 is provided at a certain angle.
FIG. 7A shows that the positioning groove 17 is a fitting groove 17a to 17f provided in each opening / closing leg 1. FIG.
And as shown in FIG. 1, the protrusion part fitted corresponding to the said positioning groove | channel 17 is integrally formed in the lower part near the base end part 2a of each opening-and-closing leg 2. As shown in FIG.
When the opening / closing legs 2 that have been loosened and spaced apart are narrowed between the opening / closing legs 2 by the rotation of the grip portion 9, the protruding portions formed on the opening / closing legs 2 are respectively inserted into the fitting grooves 17a to 17f. As a result, the opening and closing legs 2 are fixed at an equal degree of 45 degrees.

Next, the form which provided the said opening-and-closing leg positioning means 7 is demonstrated.
The opening / closing leg positioning means 7 has a structure for positioning the opening / closing legs 2 at the base end portion 2a of the opening / closing leg 2 at equal intervals around the central axis 1, respectively. 1 is developed around the central axis 1, as shown in FIG. 1, the stakes are set at equal intervals set by the respective opening / closing legs 2 around the central axis 1, and each opening / closing leg 2 is expanded. It is positioned at an angle.

Various structures can be used as the opening / closing leg positioning means 7. However, since the position of each opening / closing leg 2 can be determined simultaneously with the fixing of the opening / closing leg, a form combined with the opening / closing leg fixing means 6 is possible. is there.
As an alternate form, as shown in FIG. 6, each opening / closing leg 2 is fitted around the circular plate portion 16 provided at the base end portion 2 b of the lowermost opening / closing leg 2 so as to be positioned at a constant equiangular angle. A configuration is possible in which a joint groove 17 is provided, and a protruding portion formed on the opening / closing leg 2 corresponding to this is fitted into the positioning groove 17 so that the opening / closing leg 2 is deployed.

  Further, as the opening / closing leg positioning means 7 different from this, as shown in FIG. 6, each opening / closing leg 2 sets its stake in a set degree around the central axis 1, and each opening / closing leg 2 is replaced with the opening / closing leg 2 as described above. When the shaft 1 is rotated around the center axis 1, the opening / closing leg 2 can be deployed while being constrained sequentially in proportion to each interest.

As shown in FIGS. 7 and 8, this form is provided with a stopper 21 protruding at a set degree at the base end 2 a of each open / close leg 2, and the stopper 21 of the base end 2 a of each open / close leg 2 is developed by deployment. The structure is such that the base end portion of the adjacent opening / closing leg 2 is successively deployed while being restrained equally.
More specifically, as shown in FIG. 7A, a horizontal wide-diameter circular plate portion 16 is formed on the base end portion 2a of the lowermost opening / closing leg 2. In the second opening / closing leg 2 from the bottom, as shown in FIG. 7B, a pivot hole 2d penetrating the central axis 1 provided at the center of the plate surface of the small-diameter pivot section 20 is centered. Multistage stoppers 21 are provided equally.

The multi-stage stopper 21 is a step formed between the base end 2a of the open / close leg 2 at a certain 45 degrees and toward the opening surface. As shown in FIG. 5, the step is formed so that the distance from the pivot support hole 2d becomes smaller from the bottom to the top, and the base end portion of each opening / closing leg 2 corresponding to the multi-stage stoppers 21 and 19. A stopper abutting portion 37 is formed in a portion where the distance from the pivot hole 2d increases in order from the bottom to the top of 2a.
When the opening / closing leg 2 is opened to be deployed, the stopper abutting portion 37 of the base end portion 2a of each opening / closing leg 2 abuts against the multistage stopper 21, and the position of each opening / closing leg 2 is determined to be equal.

Further, in this embodiment, the circular plate portion 16 of the lowermost opening / closing leg 2 has, as shown in FIG. 7A, each opening / closing leg 2 in a closed state when the overlapping opening / closing legs are closed. A stacking notch portion 18 is provided for restraining a protruding portion with respect to the fitting grooves 17a to 17f. When the opening / closing leg 2 is closed, the holding part 9 provided with a female screw is tightened by the stacking cutout part 18 so as to restrain the protruding parts from moving in an overlapping state. Can be fixed together.
Further, by bending the open / close leg 2 vertically, as shown in FIG. 7A, the cut-out notch 19 formed after the cut-out is 45 degrees from the base end 2a of the open / close leg 2. The peripheral opening surface is formed as a positioning groove 17 that replaces the fitting grooves 17a to 17f.
Then, as shown in FIG. 6, the stopper and bending reinforcement portion 23 provided so that the protruding tip is 45 degrees hits the upright portion near the base end portion of the lowermost opening / closing leg 2, so that an interval of 45 degrees is obtained. As shown in FIG. 6, when all the opening / closing legs 2 are deployed, all the opening angles can be positioned at 45 degrees.

  7 and 8 show the disassembled parts. In FIG. 7, in order from the bottom, (a) shows the lowermost opening / closing leg, (b) shows the upper opening / closing leg, (C) shows the upper opening / closing leg, (d) shows the upper opening / closing leg, and in FIG. 8, (e) shows the upper opening / closing leg of (2) in FIG. The upper opening / closing leg is shown, (G) shows the upper opening / closing leg, and (H) shows the uppermost opening / closing leg.

As a form different from the opening / closing leg positioning means 7, as shown in FIG. 9, pivot holes 25, 29 are formed at the center of the disk so as to overlap with the disk-shaped base end portions 32 of the opening / closing legs 2. The lower circular substrate 24 and the upper stepped substrate 28 provided are provided. As shown in FIG. 10A, the lower circular substrate 24 is provided with a projection 26 and a restraining hole 27 and as shown in FIG. As described above, the upper step substrate 28 is provided with a protrusion 30 that fits into the restraining hole 27 so that the lower circular substrate 24 and the upper step substrate 28 can be fixed.
The upper step substrate 28 is provided with each step portion 31 provided with a pivotal support hole 33 at the center where the multi-step portions 31 are formed in such a manner that the distance from the center is sequentially increased at an equal degree of 45 degrees.

Then, as shown in FIG. 9, the base end portion 32 of the uppermost opening / closing leg 2 is placed on the upper stepped substrate 28, and the other part between the lower circular substrate 24 and the upper stepped substrate 28 at the lowermost portion is placed. The pivot shaft 1 is inserted into the pivot holes 25, 33, and 29 that are overlapped with the base end portion 32 of the open / close leg 2.
At that time, a spiral spring is interposed between the upper stepped substrate 28 and the opening / closing leg 2 base end portion 32 therebelow.

The lower circular substrate 24 is provided with stopper protrusions 26 on the outer periphery, and the multi-step portions 31 of the upper step substrate 28 are provided with multi-step stoppers 31a to 31g with increasing distances from the center sequentially from the bottom to the top.
As shown in FIG. 11, step protrusions 34 a to 34 h that are bent upward are provided on the base end portion 2 a of each opening / closing leg 2 so as to correspond to the multi-stage stopper 31, and the step protrusion 34 is provided on the multi-stage stopper 31. Sequentially contact each other at a degree of 45 degrees, and each of the open / close legs 2 is positioned at an equal degree.
In addition, it is good to provide the bending reinforcement part 35 bent horizontally as shown in FIG. 11 in the twist part connected from the intermediate part 2c of the said opening-and-closing leg 2 to the base end part 2a. .

Among the parts used for the opening / closing leg positioning means 7 of this embodiment, FIG. 10 (a) shows the lower circular substrate 24, and FIG. 10 (b) shows the upper multistage substrate 28.
11A shows the lowermost opening / closing leg 2, FIG. 11B shows the lowermost opening / closing leg 2, FIG. 11C shows the upper opening / closing leg 2, and FIG. Opening and closing leg 2 is shown. (E) Opening and closing leg 2 is shown, (f) is showing opening and closing leg 2 above, (g) is showing opening and closing leg 2 above, (h) is from above The 2nd opening-and-closing leg 2 is shown.

  That is, when each opening / closing leg 2 is rotated counterclockwise in FIG. 9, the position of the top opening / closing leg 2 is determined by the step protrusion 34a hitting the stopper protrusion 26 of the lower circular substrate 24, and the next lowermost opening / closing leg 2 is opened. The next position of the leg 2 is determined by the step protrusion 34 a hitting the step protrusion 34 b of the upper multi-stage board 28, and the stepped protrusion 34 b hits the step protrusion 34 c of the upper multi-stage board 28 in the second opening / closing leg 2 from the bottom next. The next position is determined. In this way, the positions are determined one after another, and finally the second opening / closing leg 2 from the top hits the step protrusion 34g of the upper multi-stage board 28 and the step protrusion 34h hits, so that all positions are determined at intervals of 45 degrees.

The above is the configuration of the present invention.
Next, a method of using the present invention will be described.

When the cake cutter of the present invention is not used, as shown in FIG. 3, it is cleaned and rotated around the central shaft 1 so as to be overlapped into one bar shape and stored as it is.
And when using the whole cake K for a cut, as shown in FIG. 1, each opening-and-closing leg 2 is opened, and each is expand | deployed by the fixed fixed part 3 by the expansion | deployment fixing | fixed part 3 interposed by this base end part 2a. To be restrained.
Then, when each said opening-and-closing leg 2 is expand | deployed, it will straddle and expand | deploy the object hole cake K in the shape bent in the arch shape, and will be in a self-supporting state.

Next, the wire 4 is stretched through the lower end 2b on the end side of the opening / closing leg 2.
As shown in FIG. 1, when four wire rods 4 are used for the eight open / close legs 2, the attachment is made by connecting the opposite open / close legs to each other, and the crossing portion is finally stretched at the center. Wind the wire 4 and stop at one point.
Then, the wire rod 4 is passed under the stepping portion 10 to be hooked on the wire hooking portion 14a, the female screw 15 is adjusted, and tension is applied to the state where the wire rod 4 is pulled.
If it carries out like this, it will be able to divide into the space for 8 equally at the angle of 45 degrees with the wire 4 extended in planar view radially.

Next, as shown in FIG. 1, the whole cake K is placed on the base plate D.
Then, from above the whole cake K, the central portion of the wire 4 is pushed down vertically in accordance with the center.
At this time, when the wire 4 is pushed down to the bottom until it hits the surface of the base plate D, a beautiful cut cake cut into eight equal parts without being left uncut is obtained.

Thereafter, the cake cutter of the present invention is not lifted, and the cake cut into individual pieces is separately arranged using a cake server.
When the cut cake is taken out from the whole cake K, the cut cake has a width smaller than the interval between the openable open / close legs 2, so that it can be easily taken out by inserting a cake server between the open / close legs 2. Then, the taken cut cake may be carried and placed on its own plate.

  The present invention can be used for cutting soft and thick foods such as pizza and bread in addition to whole cake cutting.

DESCRIPTION OF SYMBOLS 1 Center axis 1a Center axis screw part 1b Center axis screw head 2 Opening and closing leg 2a Opening and closing leg base end part 2b Opening and closing leg lower end part 2c Opening and closing leg middle part 2d Opening and closing leg pivot support hole 2e Opening and closing leg stopper projection This part 3 Unfolding fixed part 4 Wire 4a Thin wire 5 Wire attaching / detaching means 6 Opening / closing leg fixing means 7 Opening / closing leg positioning means 8 Meat stealing hole 9 Handle 10 Stepping part 11 Stopping plate 11a Plate surface 12 of the stopping plate V-shaped hanging Groove 13 Hook insertion hole 13a Split 14 Threaded hook 14a Wire hooking portion 14b Screw portion 15 Female screw 16 Circular plate portion 17 Positioning groove 17a to 17f Fitting groove 18 Stacking cutout portion 19 Cutout cutout portion 20 Pivot plate 21 Multi-stage stopper 22 Bending reinforcement portion 23 Bending reinforcement portion for stopper 24 Lower circular substrate 25 Pivoting hole 26 Stopper projection 27 Restraining groove 28 Upper stepped substrate 29 Pivoting hole 30 Protrusion 31 Multi-stage Part 31a~31g stepped stopper 32 closing the legs of the base end portion 33 pivot hole 34a~34h stepped projection 35 bent reinforcing portion 36 the spiral spring 37 stopper abutting portion 38 wire rod aperture portion K Hall cake D bedplate

Claims (13)

a) a vertical central axis;
b) Each lower base portion is pivotally supported by the central axis so that each base end portion can be radially expanded and foldable into a rod shape, and the lower portion formed so as to contact each lower end portion on the same plane when cut is cut. Three or more substantially identical plate-like opening and closing legs that stand up across the target whole cake,
c) A wire rod extending radially around the perpendicular of the central axis between the lower ends of the open / close legs when deployed,
A cake cutter characterized by comprising: In the cake cutter of Claim 1,
The lower end of each open / close leg is bent sideways to form a stepping part that presses the wire down at the lower end, and when each open / closed leg overlaps in a bar shape, each stepping part radiates around the central axis A cake cutter, wherein the length of each open / close leg is gradually increased by the thickness of each open / close leg so as to overlap in the direction. In the cake cutter according to claim 1 or 2,
A cake cutter characterized by comprising wire rod attachment / detachment means for detachably attaching an end portion of a wire rod to an intermediate portion of each opening / closing leg. In the cake cutter of Claim 3,
The wire attaching / detaching means is provided with a hook plate provided with a hook insertion hole in the middle part of each opening and closing leg, and a wire hook part for hooking the wire rod is provided on the front side and a screw part is provided on the rear side. A cake cutter, wherein a threaded hook is inserted into the hook insertion hole, and a female screw is screwed onto a thread portion protruding upward. In the cake cutter in any one of Claim 1 to 4,
It is characterized by the provision of a wire restrictor that fixes the length of the wire that is stretched between the lower ends of each open / close leg when it is deployed, so that each open / close leg can be fixed at the unfolded position. Cake cutter. In the cake cutter in any one of Claim 1 to 5,
A cake cutter characterized in that an opening / closing leg fixing means is provided at a base end portion of each opening / closing leg so that the opening / closing leg can be fixed in an unfolded state. The cake cutter according to claim 6,
Open / close leg fixing means is inserted into each pivotal support hole at the base end of each of the stacked open / close legs using a central shaft with a screw head at one end and a screw portion at the other end side shaft. A cake cutter characterized in that a female screw is screwed onto the protruding threaded portion of the central shaft, and each open / close leg can be fixed by tightening the female screw. In the cake cutter in any one of Claim 1 to 7,
A cake cutter, characterized in that an opening / closing leg positioning means for positioning each opening / closing leg at equal intervals is provided at a base end portion of each opening / closing leg. The cake cutter according to claim 8,
A stopper that is formed equally at the base end of each open / close leg is provided as the open / close leg positioning means, and the stopper provided at the base end of each open / close leg by the deployment of each open / close leg is the base of the adjacent open / close leg. A cake cutter characterized in that it can be unfolded by hitting a part of the end portion and being restrained at the same interval. The cake cutter according to claim 8,
The opening / closing leg positioning means is provided by placing a horizontal circular substrate having a pivotal support hole penetrating the central axis in the central portion, overlapping the opening / closing leg base end portion, and the base end portion of each opening / closing leg is attached to the circular substrate. Protruding protrusions are provided, and the circular substrate is capable of restraining and releasing the constraining of the protrusions at equally spaced positions with the pivotal support hole as the center, by the difference in the distance between the opening and closing legs. A cake cutter comprising a positioning restraint. In the cake cutter in any one of Claims 1-10,
A cake cutter characterized in that meat stealing holes are formed at intervals on each open / close leg. In the cake cutter in any one of Claims 1-11,
A cake cutter characterized in that a gripping portion is provided at the upper part of the central axis. In the cake cutter in any one of Claims 1-12,
A cake cutter characterized by the use of thin stainless steel wires.

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