Butter knife
The innovative butter knife design with a perpendicular handle and fulcrum effect addresses the inefficiencies of conventional knives, enabling creative spreading and reduced cream transfer, enhancing the bread decoration experience.
Patent Information
- Application Number
- JP2024058393
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-31
- Publication Date
- 2025-10-14
AI Technical Summary
Conventional butter knives are inefficient in spreading cream or butter on bread, making it difficult to create shapes or draw pictures, and often result in cream getting on the handle or surrounding surfaces.
A butter knife design featuring a perpendicular handle and a symmetrical, tapered body with a neck that curves upward, allowing for precise spreading and shaping, and utilizing a fulcrum effect to minimize cream transfer to horizontal surfaces.
Enables creative spreading and shaping of cream or butter on bread while reducing cream transfer to the handle and surrounding surfaces, providing a more enjoyable and efficient spreading experience.
Smart Images

Figure 2025155065000001_ABST
Abstract
Description
[Technical Field]
[0001] Pertaining to a butter knife used to spread cream or butter on bread. [Background technology]
[0002] There are many knife-shaped butter knives, but no butter knives shaped to make it easy to draw cream on bread.
[0003] Patent Document 1 is similar to a regular butter knife. Patent Document 2 has a handle that is bent in a Z shape, but is clearly different from this patent. Patent Document 2 relates to a plastering trowel. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Patent Publication No. 2005-288076 [Patent Document 2] Utility Model Registration No. 3138030 [Patent Document 3] Utility model registration No. 3212617 Summary of the Invention [Problem to be solved by the invention]
[0005] This invention is a trowel for cream and other ingredients that is designed to allow you to draw pictures on bread with cream or butter or to apply it in a variety of ways, but since it is not commonly used, it will be called a "butter knife" here.
[0006] While conventional butter knives could spread cream or butter on bread, they were not very interesting because they could not spread cream or butter delicately and it was difficult to create shapes with the cream or draw pictures on the bread.The purpose of this invention is to provide a butter knife that not only has the function of spreading cream or butter on bread, but also has the function of enjoying the shapes and patterns that can be created by spreading the cream or butter on the bread, or enjoying the act of spreading the cream or butter itself. [Means for solving the problem]
[0007] The main feature of this invention is that it has a handle that is perpendicular to the body where cream etc. is spread, and is formed by cutting and bending a single sheet of metal.
[0008] The surface on which cream etc. is applied is called the belly. The opposite side is the back, and the flat, plate-like part where the belly and back meet is called the body. The body is symmetrical, and tapers at the end. There is a neck that curves upward from the base on the opposite side of the tip or from the edge of the body, and the tip of that forms the handle. The handle is long from front to back and is located on an imaginary plane that passes through the center of the body. The angle between the body and handle in the vertical direction is approximately 0° to 30°.
[0009] It is on the side of the handle and is used by pinching the handle side with the thumb, index finger, and middle finger. The entire lower end of the handle, the lower part of the handle, is above the spine of the body. When this butter knife is placed on a horizontal surface, the weight of the handle causes the base of the knife to lift up, with the bottom of the handle acting as a fulcrum, and the butt of the handle often falls to the horizontal surface.
[0010] The material is preferably a metal such as stainless steel or titanium, and a thickness of about 1mm to 2mm is sufficient for strength. [Effects of the Invention]
[0011] The present invention is a product that allows for a new way of spreading bread, but it also provides the enjoyment of drawing and creating shapes, in addition to spreading. Also, because the entire knife is three-dimensional, it will not fall into the cream case like a knife-shaped (single plate-shaped) butter knife and get cream all over the handle. Furthermore, when the butter knife of the present invention used to spread cream is placed on a flat plate, the base acts as a fulcrum and the tip often floats, reducing the amount of cream that gets on the plate. [Brief explanation of the drawings]
[0012] [Figure 1] Example 1 (Example 1) [Figure 2] Three-view drawings of Example 1 [Figure 3] A side view of Example 1 in which the torso is raised with the base as a fulcrum and the buttocks are placed on a horizontal surface (Example 1) [Figure 4] Development view of Example 1 (Example 1) [Figure 5] Example 2: Reverse of Example 1 [Figure 6] Example 3: An example in which the shape of Example 2 is curved [Figure 7] Example 4: The base is wider than the tip. [Figure 8] Example 5: Twisted neck molding [Figure 9] Example of shortened length (Example 6) [Figure 10] Example 7: Shortened length and widened flat [Figure 11] Example 8: Neck protruding from the edge of the body [Figure 12] An example with a handle that is the same length as the neck that comes out from the edge of the body (Example 9) [Figure 13] Front view of Example 9 (Example 9) [Figure 14] Example of attaching a handle to the handle (Example 10) DETAILED DESCRIPTION OF THE INVENTION
[0013] In the example, a stainless steel plate approximately 1.4 mm thick is cut and bent, but the thickness can be any thickness as long as it maintains strength. Materials such as titanium, aluminum, resin, bamboo, and plywood can also be used. [Example]
[0014] 1 is a perspective view showing a butter knife according to one embodiment of the present invention. The knife is formed by bending a stainless steel plate cut into a roughly V-shape along three bending lines 4. FIG. 2 is a three-view diagram of the first embodiment, in which A is a front view, B is a right side view, and C is a plan view. The front view A shows that the body 1 and handle 3 are in a perpendicular relationship, and the plan view C shows that the body 1 and handle 3 are positioned on a single straight line 1C when viewed from above. The body 1 and handle 3 are symmetrical with respect to a vertical plane including the straight line 1C. In addition, the handle 3 is tilted counterclockwise by approximately 10 degrees relative to the body 1. The tip is also sharpened at an angle of approximately 80°. When spreading cream on bread, hold the handle sides 3-1 on both sides of the handle 3 with your thumb and index and middle fingers. The bottom edge of the handle 3, 3-2, is located above the body 1, so you can spread cream on bread without the fingers holding the handle 3 touching the bread.
[0015] FIG. 3 shows that when the butter knife of the present invention is placed on a horizontal surface 5, it tilts clockwise around the base 1-4 as a fulcrum, and the butt 3-3 of the handle touches the horizontal surface 5. This prevents cream or the like from getting on the horizontal surface 5 even if it is on the tip 1. FIG. 4 is a development view of the stainless steel plate of Example 1 before it is bent into the shape of a butter knife. [Example]
[0016] FIG. 5 shows an embodiment of the present invention, which is a left-right symmetrical version of the first embodiment, and although the shape of the neck 2 is different, it is functionally the same as the first embodiment. [Example]
[0017] Figure 6 shows a rounded shape, replacing the angular shape of Example 2 shown in Figure 5. The shape has a soft and elegant feel. [Example]
[0018] Figure 7 shows an embodiment of the present invention, in which the flat 1B at the base 1-4 of the body 1 is wider than the flat 1B at the tip 1-2. This makes it easier to scoop out the cream that has reached the bottom of the container. The shape of the neck 2 is different from that of the other embodiments. [Example]
[0019] 8 shows an embodiment of the present invention in which the neck 2 is formed not only by bending but also by twisting. The bending is performed only once. In one embodiment of the present invention, the length 1A of the body 1 is shortened, making it easier to handle than one with a longer length 1A. The shape of the neck 2 can be formed by bending it twice, which is different from the other embodiments. [Example]
[0020] FIG. 9 shows an embodiment of the present invention in which the length 1A of the body 1 is shortened, making it easier to handle than one with a long length 1A. The shape of the neck 2 can be formed by bending it twice, which is different from the other embodiments. [Example]
[0021] FIG. 10 shows one embodiment of the present invention, in which the flat 1B of Example 6 is expanded and the edge 1-5 of the body 1 is curved. [Example]
[0022] Figure 10 shows an embodiment of the present invention in which a neck 2 is formed on the edge 1-5. The bending direction is the same, making it easy to manufacture. [Example]
[0023] Figure 11 is a perspective view of one embodiment of the present invention, in which a neck 2 is formed on the edge 1-5 and a handle 3 is formed on the extension of the neck 2 with the same width as the neck 2. This compact design is suitable for painting small surfaces. As with Example 7, the folding direction is the same. FIG. 12 is a front view. [Example]
[0024] FIG. 13 is a perspective view of an embodiment of the present invention, in which a handle support 3-4 is added to the handle 3 of the first embodiment, and the handle can be held with the entire palm of the hand. [Industrial Applicability]
[0025] It is expected that it will be used not only in ordinary homes but also in cake workshops for cream decorations, and also by plasterers for delicate work and trowel painting. [Explanation of symbols]
[0026] 1. Torso 1-1 Belly (painting surface on the back of the body) 1-2 Back (opposite side of belly) 1-3 Saki (end of the body) 1-4 Yuan (the head of the body) 1-5 Edge 1-A Flat (width of the body) 1-B Length (vertical length of the body) 2 necks 3 patterns 3-1 Handle side (side of the handle) 3-2 Handle bottom (lower edge of handle) 3-3 Handle end (rear of the handle) 4 Bend line (bend ridge) 5. Horizontal surface (horizontal surface of table or plate) 6 Virtual plane (front-back direction)
Claims
[Claim 1] A butter knife formed by bending a plate material, The body has a belly underneath, which is the surface where creams are applied, and A neck formed by bending a board upward from a part of the edge of the body; At the end of the handle is a long handle that runs in the same direction as the torso and on an imaginary plane that intersects with the torso at a right angle. A butter knife characterized in that the entire lower edge of the handle, i.e., the underside of the handle, is located on the back, opposite the belly of the body.
Citation Information
Patent Citations
Butter knife
JP2005288076A
Household utensils with a z-shaped handle
JP3138030U
Left official spatula
JP3212617U