Adjustable slotted ruler
The transparent plastic scale with 10 mm marks and aligned grooved ruler with female threads addresses the issue of uniform groove spacing, enabling accurate line drawing and broader applicability in light work and office supplies.
Patent Information
- Application Number
- JP2024106494
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2044-07-01
AI Technical Summary
Existing grooved rulers lack the ability to set groove spacing uniformly, making it difficult to draw lines accurately without referring to the scale, and there is a need for equipment that allows arbitrary groove positioning.
A transparent plastic scale with 10 mm pencil marks is placed on a slider surface, a groove for a ballpoint pen tip is created, and a non-graded grooved ruler is aligned with a graduated ruler, featuring female threads 20 mm apart for mounting bolts, enabling repositioning.
This design allows for a wider working range and accurate line drawing without needing to refer to the scale, expanding the applicability of grooved rulers to light work and office supplies.
Smart Images

Figure 2026007038000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a repositionable slotted ruler. [Background technology]
[0002] One idea is to use a grooved ruler that can be repositioned. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Jitsuto No. 3108593 [Patent Document 2] Jitsuzenhei 02-144493 [Patent Document 3] Jikkai Showa 59-124195 Summary of the Invention [Problem to be solved by the invention]
[0004] A grooved ruler allows you to set the groove spacing to a uniform value, making it easy to draw lines without looking at the scale. I have seen tools that allow you to mark points, but the position of the groove can be selected arbitrarily. There is a requirement for equipment. [Means for solving the problem]
[0005] A transparent plastic scale with no scale is placed on the slider surface, and pencil marks are placed at regular intervals of 10 mm. Make a groove for the tip of the ballpoint pen to fit into, and place it 10 mm from the surface opposite the slider surface. An opening was made parallel to the slider surface, leaving 5 mm on both ends of the scale in the longitudinal direction. Place the non-graded grooved ruler on the graduated ruler and the other side with the markings on the graduated ruler. Align the opposite side of the slider surface of the grooved ruler without scale and place the scaled ruler underneath. The slotted ruler without scale is placed on top of the other, and the opening of the slotted ruler without scale is In the longitudinal center, there are two female threads for the above-mentioned grooved ruler mounting bolts, spaced 20 mm apart. A grooved ruler that can be opened and repositioned. [Effects of the Invention]
[0006] The grooved ruler allows for a wider working range. [Brief explanation of the drawings]
[0007] [Figure 1] Figure 1 shows a front view of a repositionable grooved ruler. [Figure 2] Figure 2 shows the front view of a repositionable slotted ruler. [Figure 3] Figure 3 is a side cross-sectional view of a repositionable grooved ruler. [Figure 4] Figure 4 is a front view of a standard ruler for a grooved ruler that can be repositioned. [Figure 5] Figure 5 is a front view of the grooved ruler body. DETAILED DESCRIPTION OF THE INVENTION
[0008] An embodiment of the present invention will be described with reference to FIGS.
[0009] Figure 1 is a front view showing an example of using a position-adjustable grooved ruler.
[0010] Figure 2 is a front view of a repositionable slotted ruler.
[0011] FIG. 3 is a side cross-sectional view of a repositionable slotted ruler.
[0012] Figure 4 is a front view of a standard ruler for a position-adjustable grooved ruler.
[0013] FIG. 5 is a front view of the grooved ruler body. [Example]
[0014] FIG. 1 is a representative diagram of the present invention. [Industrial Applicability]
[0015] The range of applications for grooved rulers has expanded, making them suitable for light work, office supplies, and stationery. It is expected to be used. [Explanation of symbols]
[0016] 1 groove 2. Non-measuring slotted ruler 3. Ruler with scale 4 Mounting bolts 5 spacers 6 Tightening bolt head 7 Marking the object using a groove 8 Ruled lines when the grooved ruler without scale is set at the reference position 9 Writing utensils 10 Movement direction of the grooved ruler without scale from the reference position 11 Guide to keep the scale parallel to the scale when moving the scale without scale from the reference position 12 Check mark on the groove on the ruler without scale 13. Female thread for tightening bolt for attaching slotted ruler without scale to scale with scale
Claims
[Claim 1] On the slider surface of a transparent plastic ruler without scale, pencil marks are placed at equal intervals of 10 mm. Make a groove for the tip of the ballpoint pen to fit into, and place it 10 mm from the surface opposite the slider surface. An opening was provided parallel to the slider surface, leaving 5 mm at both ends of the scale-less grooved ruler in the longitudinal direction. Place the non-graded grooved ruler on the graduated ruler and the other side with the markings on the graduated ruler. Align the opposite side of the slider surface of the grooved ruler without scale and place the scaled ruler underneath. The slotted ruler without scale is placed on top of the other, and the opening of the slotted ruler without scale is The female threads for the two bolts for mounting the grooved ruler without scale are set at the center of the longitudinal direction, with a spacing of 20 mm. A grooved ruler that can be opened and repositioned.
Citation Information
Patent Citations
A ruler with a fixing groove
JP1984124195U
JP1990144493U
grooved ruler
JP3108593U