Depth index print set

Abstract

A depth indicator printing set for printing a screw-in depth indicator on the circumferential surface of a threaded bolt is provided. The set includes a stamp for printing the screw-in depth indicator on the circumferential surface of the threaded bolt, and a guide member for guiding the stamping position on the threaded bolt, and the indicator has scales arranged at predetermined intervals and numbers arranged between the scales.

Description

[Technical Field]

[0001] This relates to a depth indicator printing set that prints an indicator of the screw-in depth on the peripheral surface of a threaded bolt. [Background technology]

[0002] A marking device for checking whether a bolt is loose has been proposed (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-104469 Summary of the Invention [Problem to be solved by the invention]

[0004] When attaching threaded bolts to a wall, ceiling, or other structural member, it is necessary to ensure sufficient screw-in depth. However, the screw-in depth cannot be visually confirmed from the outside. The device in Patent Document 1 is not intended for threaded bolts, and even if it can check for looseness of the threaded bolt, it cannot check the screw-in depth.

[0005] In view of the above problems, an object of the present invention is to provide a depth indicator print set for printing an indicator for the screw-in depth on the peripheral surface of a bolt. [Means for solving the problem]

[0006] In view of the above circumstances, the first depth indicator print set of the present invention comprises: A stamp that prints an indicator of the screw-in depth on the peripheral surface of the threaded bolt; a guide member for guiding the stamping position relative to the bolt; The indicator has scales provided at predetermined intervals and numbers provided between the scales. It is characterized by:

[0007] This first depth indicator print set allows an indicator for the screw-in depth of a threaded bolt to be printed.

[0008] Also, the first depth indicator print set described above, The guide member is a sheet-like member and is provided with marks for aligning the positions of the threaded bolts and the scales. It is characterized by:

[0009] This first depth indicator print set allows the markings to be used to print the screw-in depth indicator of the threaded bolt at an accurate position.

[0010] Also, the first depth indicator print set described above, The guide member is provided with a plurality of the marks. It is characterized by:

[0011] This first depth indicator print set allows the markings to be used to print the screw-in depth indicator of the threaded bolt at an accurate position.

[0012] Also, the first depth indicator print set described above, The guide member is a frame-shaped member that defines the stamping range of the stamp on the bolt. It is characterized by:

[0013] According to this first depth indicator print set, the stamping range is defined by a guide member, so that the indicator for the screw-in depth of the threaded bolt can be printed in an accurate position.

[0014] In view of the above circumstances, the second depth indicator print set of the present invention is: a first stamp for printing an indicator of the screw-in depth on the peripheral surface of the threaded bolt; a second stamp that prints an indicator of the screw-in depth on the peripheral surface of the threaded bolt in a color different from that of the first stamp; a first guide member for guiding the stamping position of the first stamp relative to the threaded bolt; a second guide member for guiding the stamping position of the second stamp relative to the threaded bolt; The indicator has scales provided at predetermined intervals and numbers provided between the scales. It is characterized by:

[0015] With this second depth indicator print set, indicators for the screw-in depth of the threaded bolt can be printed in multiple locations.

[0016] Also, the second depth indicator print set described above, the first guide member is a frame-shaped member that defines an imprinting range of the first stamp on the threaded bolt, The second guide member is a frame-shaped member that defines an imprinting range of the second stamp on the threaded bolt. It is characterized by:

[0017] According to this second depth indicator print set, the stamping range is defined by a guide member, so that the indicator for the screw-in depth of the threaded bolt can be printed in an accurate position.

[0018] Also, the second depth indicator print set described above, The first guide member and the second guide member are configured to be connectable. It is characterized by:

[0019] With this second depth indicator printing set, the stamping range is divided by the connected guide member, so that the indicator for the screw-in depth of the threaded bolt can be printed in an accurate position.

[0020] Also, the second depth indicator print set described above, the first guide member is adapted to be fitted with the first stamp to enable the first stamp to impress an imprint, but is not adapted to be fitted with the second stamp; the second guide member is adapted to be fitted with the second stamp to enable the second stamp to impress an imprint, but is not adapted to be fitted with the first stamp; It is characterized by:

[0021] This second depth indicator print set makes it possible to prevent mistakes in the stamping range when stamping. [Effects of the Invention]

[0022] According to the present invention, a depth indicator print set can be provided that prints an indicator for the screw-in depth of a threaded bolt. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a perspective view showing a stamp according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view showing the stamp of the present embodiment, viewed from the opposite direction to that of FIG. 1. [Figure 3] FIG. 10 is a diagram showing dimensions of a depth indicator formed by a stamp according to the present embodiment. [Figure 4] 4 is a diagram showing an example of a cut bolt BO on which the depth indicator shown in FIG. 3 is imprinted using a stamp 1. FIG. [Figure 5] FIG. 2 is a diagram showing a guide sheet 2 of the present embodiment. [Figure 6] FIG. 10 is a diagram showing a state in which the depth indicator has been imprinted three times. [Figure 7] 1A and 1B are diagrams showing a first stamp 1K and a corresponding first frame guide 3K, a second stamp 1R and a corresponding second frame guide 3R, and a third stamp 1B and a corresponding third frame guide 3B. [Figure 8] FIG. 10 is a diagram showing a state in which a first frame-type guide 3K, a second frame-type guide 3R, and a third frame-type guide 3B are arranged relative to a threaded bolt BO. [Figure 9]FIG. 8 is a diagram showing a state in which the three stamps 1K, 1R, and 1B shown in FIG. 7 are combined with three frame-type guides 3K, 3R, and 3B. DETAILED DESCRIPTION OF THE INVENTION

[0024] The depth indicator print set of the present invention includes a stamp for printing a depth indicator (described later) on the peripheral surface of a threaded bolt, and a guide member for guiding the stamping position. Hereinafter, embodiments of the stamp and guide member will be described with reference to the drawings.

[0025] Fig. 1 is a perspective view showing a stamp used in the depth indicator print set of this embodiment. Fig. 2 is a perspective view showing the stamp used in the depth indicator print set of this embodiment from the opposite direction to Fig. 1. Fig. 3 is a diagram showing the dimensions of the imprint (depth indicator) made by the stamp used in the depth indicator print set of this embodiment.

[0026] The stamp 1 of this embodiment shown in Figures 1 and 2 is used to print a depth indicator, described later, on a threaded bolt, and has a handle portion 12 on the upper side and a printing portion 13 on the lower side.

[0027] The printing unit 13 has a printing surface 15 on which protrusions and recesses corresponding to the depth indicators are formed. In Figure 2, the protrusions on the printing surface 15 that correspond to the depth indicators are shown painted black. The printing surface 15 is made of resin, and is configured so that the ink filled inside the stamp 1 seeps out when it is pressed.

[0028] A depth indicator (the same as the impression made by the stamp surface 15) is printed on the top surface 14 of the handle portion 12. The convex portion of the stamp surface 15 is formed directly below the depth indicator printed on the top surface 14. Therefore, the depth indicator on the top surface 14 serves as a guide when imprinting the depth indicator on the threaded bolt.

[0029] In this embodiment, the screw depth indicator (hereinafter referred to as the depth indicator) printed on the threaded bolt has five scales M1 to M5 spaced at regular intervals (1 cm intervals in this example) and numbers N1 to N4 spaced between these scales M1 to M5, as shown in Figure 3. Note that these scales and numbers are merely examples, and the intervals between the scales may be varied or characters other than numbers may be used depending on the purpose.

[0030] FIG. 4 is a diagram showing an example of a threaded bolt BO on which the depth indicator shown in FIG. 3 is stamped using a stamp 1 on the periphery. In this example, the depth indicator is stamped on one end of the threaded bolt BO. When using this threaded bolt BO, the screw-in depth can be determined based on the visible state of the depth indicator. For example, if the numbers 1 and 2 are not visible, it can be determined that the threaded bolt BO has been screwed in 2 cm.

[0031] For example, when a row of standard bolts with heads is lined up, it may be possible to determine the difference in screw-in depth from differences in the height of the heads. However, because cut bolts are often longer than standard bolts and have a longer exposed portion, it is difficult to determine the difference in screw-in depth from these differences. For this reason, by providing depth indicators on cut bolts as explained above, defects during installation can be easily detected. Furthermore, insufficient screw-in areas can be easily identified during subsequent inspections.

[0032] Next, the guide members used in the depth indicator print set of this embodiment will be described.

[0033] FIG. 5 shows a guide sheet 2, an example of a guide member used in a depth indicator print set. This guide sheet 2 has a fold 21 and first, second, third, fourth, and fifth lines 22, 23, 24, 25, and 26, which intersect perpendicularly to the fold 21 and serve as guides for the stamping position. The distance between the first and second lines 22 and 23 is 4 cm, the distance between the second and third lines 24 is 1 cm, the distance between the third and fourth lines 24 and 25 is 4 cm, and the distance between the fourth and fifth lines 25 and 26 is 1 cm. A frame 27 corresponding to the size of the stamp 1 when viewed from above is also shown. While this guide sheet 2 is made of paper, the material is not limited, and a resin guide may also be used.

[0034] To use the bolt, place the bolt along the fold 21 and align the end of the bolt with the first line 22. Then, place the stamp 1 directly above the bolt and adjust the end of the indicator (e.g., the top scale M1 in Figure 3) on the top surface 14 so that it is aligned with the first line 22. Then, stamp a depth indicator onto the periphery of the bolt. In this case, the depth indicator is imprinted on one end of the bolt, as shown in Figure 4. By using the guide sheet 2 in this way, the stamp 1 can be guided to the desired position on the bolt and the depth indicator can be imprinted. Specifically, by placing the bolt along the fold 21, the center line of the bolt and the first line 22 are perpendicular to each other when viewed from above, making it easier to position the bolt. The frame 27 facilitates the positioning of the stamp 1. After aligning the end of the bolt with the first line 22, the stamp 1 can be aligned with the frame 27 and imprinted with the depth indicator, which can also be achieved as shown in Figure 4.

[0035] In addition, multiple stamps 1 with different ink colors (e.g., black, red, and blue) can be used to imprint depth indicators multiple times to accommodate cases where the screw-in depth is greater. For example, after imprinting the first depth indicator (black) on the end of the threaded bolt BO using the method described above (after reaching the state shown in Figure 4), the threaded bolt BO is left as is, and another stamp 1 with a different ink color (e.g., red) is prepared. The end of the indicator shown on the upper surface 14 of the stamp 1 (e.g., the top scale M1 in Figure 3) is adjusted to align with the third line 24, and then a second depth indicator (red) is imprinted on the circumferential surface of the threaded bolt BO. Furthermore, while the threaded bolt BO is left as is, another stamp 1 with a different ink color (e.g., blue) is prepared, and the end of the indicator shown on the upper surface 14 of the stamp 1 (e.g., the top scale M1 in Figure 3) is adjusted to align with the fifth line 26, and then a third depth indicator (blue) is imprinted on the circumferential surface of the threaded bolt BO. Figure 6 shows the state in which depth indicators have been imprinted three times using this method. In this case, the depth indicator closer to the end of the cut bolt BO (the upper one in the figure) is the result of the first impression, and the depth indicators below it are the result of the second and third impressions, respectively.

[0036] For example, if the black numbers 1 to 4 and the red numbers 1 and 2 are not visible when the threaded bolt BO shown in Figure 6 is screwed in, it can be determined that the threaded bolt BO is screwed in 7 cm. Note that depth indicators may be stamped as needed, such as not stamping the first time if it is clear that the threaded bolt BO will be screwed in 4 cm or more.

[0037] Note that, although the above example describes a method of imprinting the depth indicator three times without moving the cut bolt BO, the cut bolt BO may also be moved. For example, in the above example, while referring to the depth indicator (black) imprinted the first time, the cut bolt BO may be moved so that a position 5 cm from the end of the cut bolt BO is aligned with the first line 22, and the end of the indicator (e.g., the top scale M1 in FIG. 3) shown on the top surface 14 of another stamp 1 with a different ink color (e.g., red) may be adjusted to a position aligned with the first line 22, and then the depth indicator (red) may be imprinted a second time on the circumferential surface of the cut bolt BO.

[0038] The spacing and number of lines between the first line 22 to the fifth line 26 are not limited to this example, and may be any mark that guides the stamping position of the stamp 1 and makes it easy to position the depth indicator when stamping.

[0039] Next, an example of a guide member used in a depth indicator print set, which is different from the guide sheet 2 described above, will be described.

[0040] 7 shows a first stamp 1K and its corresponding first frame guide 3K, a second stamp 1R and its corresponding second frame guide 3R, and a third stamp 1B and its corresponding third frame guide 3B. In this example, the first stamp 1K uses black ink, the second stamp 1R uses red ink, and the third stamp 1B uses blue ink. Note that the colors are merely examples and are not limited to these.

[0041] Each of the three frame guides 3K, 3R, and 3B has a longitudinal space for placing a cut bolt. Each of the three frame guides has a vertical hole approximately the same size as the printing area 13 of the corresponding stamp 1K, 1R, or 1B. The printing area 13 can be inserted into the hole to stamp the cut bolt placed inside. Furthermore, marks C1 and C2 are provided for aligning each frame guide 3K, 3R, or 3B with the center line of the cut bolt placed inside. The second and third frame guides 3R and 3B each have holes at both longitudinal ends for passing the cut bolt, allowing the cut bolt to pass through longitudinally. However, the first frame guide 3K is used for the end of the cut bolt, and therefore has a hole at only one longitudinal end for passing the cut bolt. The end of the cut bolt inserted longitudinally through this hole will not penetrate the inside. However, the first frame-type guide 3K may also be configured so that holes for passing through bolts are provided at both ends in the longitudinal direction.

[0042] To use these three frame guides 3K, 3R, and 3B, first place the threaded bolt and then place the frame guides 3K, 3R, and 3B on top of it. Alternatively, the three frame guides 3K, 3R, and 3B can be arranged side by side, and then the threaded bolt can be inserted along their longitudinal direction. Figure 8 shows the state in which the first frame guide 3K, the second frame guide 3R, and the third frame guide 3B are arranged in this order on top of the threaded bolt BO. The space defined by the frame guides 3K, 3R, and 3B corresponds to the imprinting range of the corresponding stamps 1K, 1R, and 1B. By placing the frame guides 3K, 3R, and 3B on the threaded bolt, the imprinting position can be guided. By stamping the corresponding stamps 1K, 1R, and 1B at the imprinting positions guided by the frame guides 3K, 3R, and 3B, a depth indicator can be printed, as in Figure 6. In addition, this figure also uses the guide sheet 2 explained using Figure 5, but this guide sheet 2 is shown to make the situation easier to understand, and it is not necessary to use the guide sheet 2 in actual use.

[0043] If a stamp that does not correspond to the frame guide is stamped in the state shown in FIG. 8, the order of the ink colors (black, red, blue from the edge in the above example) will be incorrect. To prevent this, in this embodiment, protrusions 16K, 16R, and 16B are provided on each of the three stamps 1K, 1R, and 1B, and grooves 31K, 31R, and 31B corresponding to these protrusions are formed on each of the three frame guides 3K, 3R, and 3B. With this configuration, for example, even if the first stamp 1K is used with the second frame guide 3R, the protrusion 16K of the first stamp 1K will not fit into the groove 31R of the second frame guide 3R, and stamping will not be possible. In other words, these protrusions 16K, 16R, and 16B and the grooves 31K, 31R, and 31B are configured to fit together only when they are compatible, preventing the misuse of corresponding stamps.

[0044] In the above example, three frame-type guides 3K, 3R, and 3B are used, but it is not necessary to use all of these frame-type guides; they can be used individually. The number of frame-type guides is also not limited to three; it may be, for example, two or four. When using multiple frame-type guides as in this example, the guides may be connected to each other so that their relative positions (for example, the positional relationship shown in FIG. 8) can be maintained.

[0045] Furthermore, the frame guide and stamp may be combined in advance. Figure 9 shows the combination of the three stamps 1K, 1R, and 1B shown in Figure 7 with the three frame guides 3K, 3R, and 3B. In this configuration, a threaded bolt is inserted from the direction indicated by the arrow IN in Figure 9 and advanced until the end of the threaded bolt hits the innermost part, thereby achieving the same positional relationship as in Figure 8. Then, by imprinting depth indicators with each stamp 1K, 1R, and 1B in this state, the depth indicators can be printed in the same manner as in Figure 6.

[0046] As described above, by using a guide member for imprinting the depth indicator, it is possible to imprint the depth indicator with a stamp with high precision. Furthermore, it is possible to imprint the depth indicator with high precision even when imprinting multiple times. Furthermore, imprinting the depth indicator multiple times can also accommodate cases where the screw-in depth is greater. [Explanation of symbols]

[0047] 1 stamp 12 Handle 13 Printing section 14 Top side 15 Seal 2 Guide Sheet 21 crease 22 First Line 23 Second Line 3K First Frame Guide 3R second frame guide 3B Third frame guide BO Threaded Bolt

Claims

1. A stamp that prints an indicator of the screw-in depth on the peripheral surface of the threaded bolt; a guide member for guiding the stamping position relative to the bolt; The indicator has scales provided at predetermined intervals and numbers provided between the scales. A depth indicator print set.

2. 2. The depth indicator print set of claim 1, The guide member is a sheet-like member and is provided with marks for aligning the positions of the threaded bolts and the scales. A depth indicator print set.

3. 3. The depth indicator print set of claim 2, The guide member is provided with a plurality of the marks. A depth indicator print set.

4. 2. The depth indicator print set of claim 1, The guide member is a frame-shaped member that defines the stamping range of the stamp on the bolt. A depth indicator print set.

5. a first stamp for printing an indicator of the screw-in depth on the peripheral surface of the threaded bolt; a second stamp that prints an indicator of the screw-in depth on the peripheral surface of the threaded bolt in a color different from that of the first stamp; a first guide member for guiding the stamping position of the first stamp relative to the threaded bolt; a second guide member for guiding the stamping position of the second stamp relative to the threaded bolt; The indicator has scales provided at predetermined intervals and numbers provided between the scales. A depth indicator print set.

6. 6. The depth indicator print set of claim 5, the first guide member is a frame-shaped member that defines an imprinting range of the first stamp on the threaded bolt, The second guide member is a frame-shaped member that defines an imprinting range of the second stamp on the threaded bolt. A depth indicator print set.

7. 7. The depth indicator print set of claim 6, The first guide member and the second guide member are configured to be connectable. A depth indicator print set.

8. 8. The depth indicator print set of claim 6 or 7, the first guide member is adapted to be fitted with the first stamp to enable the first stamp to impress an imprint, but is not adapted to be fitted with the second stamp; the second guide member is adapted to be fitted with the second stamp to enable the second stamp to impress an imprint, but is not adapted to be fitted with the first stamp; A depth indicator print set.

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