Bone grinder
The bone pulverizer efficiently pulverizes large quantities of remains with foreign objects using a metal rotating container and grinding rod, ensuring quick processing and easy cleaning.
Patent Information
- Application Number
- JP2025003876U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-11-07
Smart Images

Figure 0003254290000001_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a bone pulverizer used to crush remains into powder. [Background technology]
[0002] In recent years, when closing or relocating a grave, the remains are sometimes crushed into powder to reduce the amount of bones. Crushing is also necessary when scattering ashes in the sea or mountains. Crushing pet ashes may also be done in the same way.
[0003] A common method of pulverizing bones is to use a ceramic pestle, which is used to grind medicines into powder. However, this is a manual process and can only grind a small amount of bone, and it takes time. Alternatively, a machine used in Taiwanese households to grind herbal medicines into powder by rotating blades can be used. While this method takes less time than a pestle, for example, when grinding bones from a 7-inch jar, it is necessary to grind the bones multiple times, which takes time, and cleaning up after grinding is also complicated. Furthermore, since people dislike having their remains mixed with those of other people, it is desirable to clean the machine after each use, so ease of cleaning is an important issue.
[0004] There is also a grinding machine called a ball mill. A ball mill is a device that grinds materials into a fine powder by rotating multiple hard balls made of ceramic or other materials and powdered material placed in a cylindrical container. While a ball mill can pulverize large amounts of bones in a short amount of time, it has the problem of having to remove and clean the hard balls after each use. Furthermore, when using non-metallic balls such as ceramic balls, it is necessary to prevent them from wearing down and mixing with the remains.
[0005] FIG. 4 shows an example of a conventional bone crushing device. Patent Documents 1 and 2 disclose a conventional bone crushing device 100 that pulverizes bones by rotating a rotating rigid body and a crushing blade 120 at high speed inside a crushing vessel 110. While this type of bone crushing device 100 can crush large amounts of bones in a short time, it still has the problem of requiring tedious cleaning of the crushing blade 120. Furthermore, remains may contain metal foreign objects such as nails, and if these are not removed beforehand, the crushing blade 120 may chip or become trapped between the blades. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Patent Publication No. 2010-63953 [Patent Document 2] Utility Model Registration No. 3220196 Summary of the Invention [Problem to be solved by the invention]
[0007] In view of the above circumstances, the object of this invention is to provide a bone pulverizer that does not require the removal of foreign matter other than remains, can pulverize a large amount of bones in a short time without using a pulverizing blade, and is easy to clean. [Means for solving the problem]
[0008] The bone pulverizer of the present invention comprises a metal rotating container whose interior space has a regular polygonal cross section and a regular polygonal prism-shaped exterior, a cylindrical metal grinding rod that is placed inside the rotating container together with the ashes, a rotating device that can rotate the rotating container around its central axis while it is placed in a horizontal position, and an angle adjustment mechanism that can change the angle of the rotating container's central axis from horizontal to vertical. The regular polygonal shape of the rotating container may be a regular dodecagon. The rotating device may also have two rollers, and the rotating container placed on the rollers may be rotated by the rotation of the rollers. Furthermore, the rotating container may have a movement control unit located on the outside of the bottom surface and on the central axis to prevent the rotating container from moving along its central axis. [Effects of the Invention]
[0009] The bone pulverizer of this invention has the advantage of being able to pulverize a large amount of remains in a short time and is easy to clean after pulverization. It is also possible to pulverize remains even if they contain foreign objects such as metal. Furthermore, by using a mechanism to rotate the rotating container using rollers, it has the advantage that the remains do not stick to the shaft, unlike structures with a shaft inside the rotating container. [Brief explanation of the drawings]
[0010] [Figure 1] This is the bone pulverizer of this invention. [Figure 2] 1 is an explanatory diagram of the bone pulverizer of the present invention. [Figure 3] This is the bone pulverizer of the present invention, (a) shows the internal space before rotation, and (b) shows the internal space during rotation. [Figure 4] 1 is an example of a conventional bone crushing device. DETAILED DESCRIPTION OF THE INVENTION
[0011] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1 shows a bone pulverizer of the present invention, Figure 2 is an explanatory diagram of the bone pulverizer of the present invention, and Figure 3 shows the internal space of the bone pulverizer of the present invention, (a) before rotation and (b) during rotation.
[0012] The bone pulverizer 1 of this invention places the remains 50 and the crushing rod 20 in the internal space 11 of the rotary container 10, and by rotating the rotary container 10, the remains 50 collide with the crushing rod 20 and the inner wall of the rotary container 10, crushing the remains 50 into small pieces. The remains 50 may be those of a human or a pet.
[0013] The rotating vessel 10 is made of metal, and the cross section of the internal space 11 is a regular polygonal shape with a regular dodecagon as the standard. Therefore, the outer shape is a regular polygonal prism. The rotating vessel 10 is configured to be rotated around the central axis of the rotating vessel 10 using a rotation device 30 when placed on its side. Therefore, it is desirable that the regular polygonal shape and regular polygonal prism shape be at least a regular octagon or larger. The "laid-down state" refers to a state in which the regular polygonal faces of the regular polygonal prism are oriented approximately horizontally.
[0014] The rotation device 30 is not particularly limited in structure as long as it can rotate the rotating container 10, but as an example, it can be configured with two rollers 31, 31 arranged in parallel. The rotating container 10 is placed on the two rollers 31, 31 in a state where it is laid horizontally and is approximately parallel to the rollers 31, 31, and the rollers 31, 31 are rotated in this state to rotate the rotating container 10. Note that since the outer shape of the rotating container 10 is a regular polygonal prism, it is preferable to provide a protrusion with a circular outer periphery on the outer side of the rotating container 10 or to attach a band to ensure smooth rotation.
[0015] The crushing rod 20 is a cylindrical rod made of metal such as stainless steel, and is placed in the internal space 11 of the rotating container 10 together with the ashes 50, as shown in Figures 1 and 3(a). Although a single crushing rod 20 may be used, placing multiple rods allows for the crushing of ashes 50 sandwiched between the crushing rods 20, thereby shortening the crushing time. However, since using too many crushing rods 50 relative to the amount of ashes 50 is inefficient, it is generally preferable to use around two rods. After placing the ashes 50 and crushing rods 20 in, the rotating container 10 is covered and then rotated.
[0016] Furthermore, by making the grinding rod 20 out of metal, it is heavy and less likely to break, making it more suitable for crushing the remains 50 than a ceramic rod. In particular, metals such as stainless steel are preferred because non-metallic materials, such as ceramic, may wear out and become mixed with the remains. Furthermore, because it is cylindrical and made of metal, it can be easily removed and wiped down after crushing, making cleaning easy. By making the length of the grinding rod 20 approximately the same as or slightly shorter than the depth of the internal space 11 of the rotating container 10, the grinding rod 20 does not move aimlessly around inside the rotating container 10 during rotation. Instead, as shown in Figure 3(b), it can be repeatedly lifted and dropped in accordance with the rotation of the rotating container 10. Furthermore, by making the cross section of the internal space 11 of the rotating container 10 a regular polygon, the grinding rod 20 can be lifted higher and fall further than a simple circle, allowing for more effective crushing of the remains 50.
[0017] Furthermore, when placing remains into the internal space 11 of the rotating container 10, the opening of the container should be set so that it faces slightly upward from the horizontal, and during crushing, the rotating container 10 should be set so that the opening faces horizontally or slightly upward from the horizontal, and when removing the remains after crushing, the opening of the rotating container 10 should be set so that it faces slightly downward, which will make the pulverization process easier. Therefore, an angle adjustment mechanism 32 is provided that can change the angle of the central axis CL of the rotating container 10 up or down from the horizontal.
[0018] The structure of the angle adjustment mechanism 32 is not particularly limited, but it is simple to use one that can move the angle of the entire bone pulverizer 1, including the rotating container 10 and rollers 31, up and down. The range of vertical adjustment does not need to be too large, and it is desirable to have about ±15° up and down from the horizontal.
[0019] Furthermore, since it would be dangerous if the rotating vessel 10 were to slide or move along the central axis CL when the angle of the central axis CL of the rotating vessel 10 is changed up or down, it is advisable to provide a movement control unit 13 to prevent movement of the rotating vessel 10. The movement control unit 13 is provided on the outside of the bottom surface 12 of the rotating vessel 10 and on the central axis CL, and specifically has a structure having a substantially cylindrical shape and two disk-shaped stoppers 14 with slightly larger diameters. The position sandwiched between the stoppers 14 is then clamped by a locking member 15, thereby preventing movement along the central axis CL without stopping the rotation of the rotating vessel 10. Furthermore, providing a bearing in the locking member 15 can ensure smooth rotation of the rotating vessel 10. By adding the above-described movement prevention structure, it is possible to prevent movement of the rotating vessel 10 even during rotation.
[0020] Furthermore, when removing the rotating container 10 from the device for cleaning, there is an advantage that the cleaning work can be easily performed by holding the movement control unit 13 as a handle.
[0021] With a bone pulverizer like the one described above, it is possible to safely pulverize the remains even if they contain foreign objects such as metal, it is possible to pulverize the remains in a short period of time, and it is also easy to clean up after pulverization. [Explanation of symbols]
[0022] 1 Bone grinder 10 Rotating Container 11 Interior Space 12 Bottom 13 Movement control unit 14 Stopper 15 Locking member 20 Grinding rod 30 Rotating device 31 Laura 32 Angle adjustment mechanism 50 remains 100 Bone Crusher 110 Grinding container body 120 Crushing blade CL center axis
Claims
1. a metallic rotary container having an internal space with a cross section of a regular polygonal shape and an external shape of a regular polygonal prism; A cylindrical metal crushing rod that can be placed in the internal space of the rotary container together with the remains; a rotating device that can rotate the rotary container around a central axis while the rotary container is placed on its side; an angle adjustment mechanism that can change the angle of the central axis of the rotating container up or down from the horizontal direction; A bone pulverizer characterized by having:
2. 2. The bone pulverizer according to claim 1, wherein the regular polygonal shape of the rotary container is a regular dodecagon.
3. 2. The bone pulverizer according to claim 1, wherein the rotating device has two rollers, and the rotary container placed on the rollers is rotated by the rotation of the rollers.
4. 2. The bone pulverizer according to claim 1, further comprising a movement control section on the outside of the bottom surface of the rotary container and on the central axis thereof, for preventing the rotary container from moving in the direction of the central axis.
Citation Information
Patent Citations
Device for crushing ashes
JP2010063953A
Bone crushing device
JP3220196U