Multi-tool cutting saw with internal cutting space
The multi-tool cutting saw with an internal cutting space addresses alignment issues by allowing objects to contact blades within the blade, ensuring stable cutting despite positional changes, enhancing work efficiency in challenging environments.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- 伊東 剛志
- Filing Date
- 2026-01-21
- Publication Date
- 2026-04-15
AI Technical Summary
Conventional multi-tools face challenges in accurately aligning the blade with the cutting object, especially in environments with low visibility or narrow spaces, leading to hindered cutting operations and safety risks.
A multi-tool cutting saw design featuring a blade with an internal cutting space where the object to be cut enters, allowing contact with blades on the inner surface for stable cutting, independent of precise alignment.
Enables stable cutting operations even when the object shifts or changes orientation, improving work efficiency in low-visibility or confined environments.
Smart Images

Figure 0003255539000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an exchangeable blade for a multi-tool.
Background Art
[0002] Generally, a multi-tool is a power tool that performs operations such as cutting, grinding, and peeling by vibrating a tip tool attached to a multi-tool body at a minute angle at high speed. In such a multi-tool, since the tip tool does not perform a rotational operation but repeats a vibrating operation, in a cutting operation, the positional relationship and contact relationship of the blade with respect to the cutting object greatly affect the operation. Conventional cut-off saws for multi-tools generally have a configuration in which the blade is directly opposed to the cutting object for cutting. However, depending on working conditions such as an environment with low visibility or a narrow space, it may be difficult to accurately align the blade with the cutting object. For this reason, there has been a risk of hindering the smooth execution of the cutting operation and ensuring safety.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Patent Document 2
Non-Patent Documents
[0004]
Non-Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] The objective of this invention is to provide a multi-tool cutting saw that is less affected by the position and orientation of the object to be cut and can perform stable cutting. [Means for solving the problem]
[0006] The multi-tool cutting saw according to this invention comprises a mounting portion that can be attached to the multi-tool body and a blade portion that extends from the mounting portion. A cutting space is formed on the inner surface of the blade portion, into which at least a portion of the object to be cut can enter. At least a portion of the inner surface of the blade body portion that defines the cutting space is provided with a blade that contributes to cutting. The object to be cut can be cut by coming into contact with one of the blades provided on the inner surface while it is inside the cutting space. [Effects of the Invention]
[0007] According to this invention, by configuring the object to be cut to enter a cutting space formed on the inner surface of the blade, it is possible to reduce the reliance on the operation of precisely aligning the blade with the object to be cut. This allows for stable cutting operations even if the object being cut shifts in position or changes in orientation. [Brief explanation of the drawing]
[0008] [Figure 1] This figure schematically shows one example of the configuration of a multi-tool cutting saw according to the present invention. [Modes for carrying out the invention]
[0009] An embodiment of the multi-tool cutting saw according to the present invention will be described with reference to Figure 1. Furthermore, the multi-tool cutting saw according to this invention is attached to the multi-tool body, and the blade, which is driven by the multi-tool body, performs a vibrating motion without rotational motion, thereby exerting a cutting action on the object to be cut. In this embodiment, the multi-tool cutting saw (1) comprises a mounting portion (2) that can be attached to and detached from the multi-tool body, and a blade portion (3) that extends from the mounting portion (2). The blade portion (3) has a shape that forms a cutting space (5) into which at least a part of the object to be cut can enter. At least a portion of the inner surface (6) of the blade body (3) that defines the cutting space (5) is provided with a blade (4) that contributes to cutting. In the multi-tool cutting saw (1) configured in this way, cutting can be performed when the object to be cut enters the cutting space (5) and comes into contact with one of the blades (4) provided on the inner surface (6). Furthermore, the shape of the blade body (3), the shape of the cutting space (5), the arrangement position, number, and arrangement of the blades (4) are not limited to the illustrated form and can be appropriately modified without departing from the spirit of the present invention. [Examples]
[0010] An embodiment of the present invention will be described below. In this embodiment, a multi-tool cutting saw (1) having the configuration shown in Figure 1 was used to perform cutting operations on linear or bundled objects in environments with low visibility or in confined workspaces. Even if the object to be cut is not held in a stable position, it is guided into the cutting space (5) formed in the blade body (3), making it easier for it to come into contact with one of the blades (4) provided on the inner surface (6). As a result, it was possible to perform relatively stable cutting operations without having to consciously focus on precisely aligning the blade (4) with the object to be cut. From this, it was confirmed that the multi-tool cutting saw (1) of this embodiment can be used effectively even in environments where visibility cannot be sufficiently ensured, or under conditions where the position or orientation of the object to be cut is likely to change.
[0011] The multi-tool cutting saw according to the present invention is not limited to the configuration shown in the above embodiment. For example, the inner surface (6) that defines the cutting space (5) formed in the blade body part (3) may be formed in a curved shape or a branched shape. Also, at least a part of the inner surface (6) is provided with a blade (4) that contributes to cutting, and the arrangement position, arrangement number, and arrangement mode of the blade (4) are not particularly limited. According to such a configuration, when the object to be cut enters the cutting space (5), it is likely to come into contact with any of the blades (4) provided on the inner surface (6), making the cutting easier to perform.
[0012] The cut-off saw for a multi-tool according to the present invention can be effectively used even in a working environment where the position or posture of the object to be cut cannot be fully grasped, and when it is difficult to accurately align the blade with the object to be cut. Therefore, in addition to the cutting work of plant roots and weeds in the soil in the agricultural field and the removal work of seedlings in narrow spaces such as horticultural facilities, it is also applicable to cutting applications such as linear bodies, fibrous bodies, and cables in the construction, interior decoration, and equipment fields.
Industrial Applicability
[0013] The present invention can be manufactured and sold as a replacement blade for a multi-tool and can be used by being attached to an existing multi-tool body. Since the present invention is configured to cut by allowing at least a part of the object to be cut to enter the cutting space formed in the blade body part, relatively stable cutting work can be performed even in an environment with low visibility or under working conditions where it is difficult to accurately grasp the position or posture of the object to be cut. Therefore, it can be effectively used in operations where it was difficult to ensure work efficiency with conventional tools, such as the cutting work of plant roots and weeds existing in the soil in the agricultural field and the removal work of seedlings in narrow spaces such as horticultural facilities. Furthermore, the present invention is not limited to the agricultural field and can also be used in other fields such as construction, interior decoration, and equipment where linear bodies, fibrous bodies, cables, etc. are the objects to be cut.
Explanation of Reference Numerals
[0014] 1. Cutting saw for multi-tool 2 Mounting part 3 Blade part 4 blades 5 Cutting space 6. Inner self
Claims
1. A multi-tool cutting saw comprising a mounting portion detachable from the multi-tool body and a blade portion extending from the mounting portion, wherein a cutting space is formed on the inner surface of the blade portion into which at least a part of the object to be cut can enter, and at least a part of the inner surface of the blade portion that defines the cutting space is provided with blades that contribute to cutting, and the object to be cut can be cut by coming into contact with any of the blades provided on the inner surface when it has entered the cutting space.
2. A multi-tool cutting saw comprising a mounting part that can be attached to the multi-tool body and a blade body extending from the mounting part, wherein a cutting space is formed on the inner surface of the blade body, into which at least a part of the object to be cut can enter, and a plurality of blades are provided on the inner surface that defines the cutting space.
Citation Information
Patent Citations
Saw blade
JP2015136751A
Saw blade
JP2019177515A