Marker Placement Device

The marker placement device with magnetic attachment and flexible support allows efficient and accurate marker placement on large objects, significantly reducing scanning time and costs.

JP7734939B1Active Publication Date: 2025-09-08ONDO METAL CO LTD
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Patent Information

Application Number
JP2025064333
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2025-09-08
Estimated Expiration
2045-04-09

AI Technical Summary

Technical Problem

Creating dedicated attachments with markers for large objects is difficult and expensive, and manually attaching and removing marker stickers is time-consuming for accurate object scanning.

Method used

A marker placement device with a gripping portion, support portion, and display portions that utilize magnetic attraction for repeated attachment and detachment, allowing efficient and flexible placement of markers on objects.

Benefits of technology

Reduces scanning time by 75% by enabling quick and multiple uses of the marker placement device, improving efficiency and accuracy of marker installation work.

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Abstract

To provide a marker installation device capable of improving the efficiency of marker installation work. [Solution] A marker placement device 100 comprising a gripping portion 1 having an up-down direction and joined to the object to be scanned X at a first end 2, a support portion 10 joined to a second end 3 on the opposite side of the first end 2 of the gripping portion 1 and extending in a direction intersecting the up-down direction, and a display portion 20 provided at both ends of the support portion 10 and in the center of the support portion 10, which displays position information of the object to be scanned X, characterized in that the joining portion of the first end 2 can be attached and detached from the object to be scanned X multiple times.
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Description

[Technical Field]

[0001] The present invention relates to a marker placement device. [Background technology]

[0002] With the recent advancement of computer technology, it has become possible to read the shape of an object as 3D image data, display it in detail in 3D on a display screen, and move it freely, as well as to replicate objects using a 3D printer. One known method of reading the shape of an object into a computer is to read the shape by scanning the partial positional information of the object. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7634919 Summary of the Invention [Problem to be solved by the invention]

[0004] In order for a computer to accurately scan the shape of an object, etc., it is necessary to place markers at precise positions along the shape so that the scanning device can recognize position information. Generally, a dedicated attachment with markers along the shape is used, as in Patent Document 1.

[0005] However, for large objects, it is difficult and expensive to create dedicated attachments, so it is necessary to attach marker stickers or the like to the object one by one at equal intervals, and then peel off the marker stickers one by one after scanning is completed, which requires a long time of work to scan the shape of the object. [Means for solving the problem]

[0006] The present invention solves the above problems. toThe object of the present invention is to provide a film having a vertical direction and extending along the vertical direction. The scanning device has a rod shape, a first end and a second end opposite to the first end, and the first end is fixed to the object to be scanned. A gripping portion; The rod-shaped rod is joined to the second end of the gripping portion at a lower surface of a central portion in a longitudinal direction and is supported by the gripping portion, thereby extending outward from the central portion in a direction intersecting the vertical direction. A marker placement device comprising: a support section; and display sections provided at both ends of the support section and at a center of the support section, the display sections displaying position information of the object to be scanned. In the marker placement device, the second end of the gripping part has a second magnet inside, the first end has a first magnet inside, and the second end can also be fixed to the object to be scanned; the support part has a magnet inside the central part, and the magnets attract both the first end and the second end of the gripping part, so that the support part can be fixed to the gripping part; and the first end and the second end of the gripping part can be attached and detached multiple times to and from the object to be scanned. Characterized by The aforementioned To provide a marker placement device.

[0007] Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a marker installation device comprising: a gripping portion having an up-down direction, extending along the up-down direction, and joined to an object to be scanned at a first end; a support portion joined to a second end of the gripping portion opposite the first end and extending in a direction intersecting the up-down direction; and display portions provided at both ends of the support portion and in a central portion of the support portion, for displaying position information of the object to be scanned, wherein the joining portion of the first end can be attached to and detached from the object to be scanned multiple times. [Brief explanation of the drawings]

[0009] The drawings illustrate particular embodiments of the present invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 1 is a perspective schematic view of a marker placement device according to a first embodiment. [Figure 2] 4(a) and 4(b) are diagrams showing the marker installation device according to the first embodiment in a stored state. [Figure 3] FIG. [Figure 4] FIG. 10 is a front schematic view of a marker placement device according to a second embodiment. [Figure 5] 10(a) and 10(b) are schematic front views of a marker installation device according to a third embodiment. [Figure 6] FIG. 10 is a diagram showing a state in which the marker placement device according to the fourth embodiment is stored. DETAILED DESCRIPTION OF THE INVENTION

[0010] At least the following matters will become clear from the description of this specification and the accompanying drawings.

[0011] A marker installation device comprising: a gripping portion having an up-down direction, extending along the up-down direction, and joined to the object to be scanned at a first end; a support portion joined to a second end of the gripping portion opposite the first end and extending in a direction intersecting the up-down direction; and display portions provided at both ends and the center of the support portion, for displaying position information of the object to be scanned; wherein the joint at the first end can be attached and detached from the object to be scanned multiple times.

[0012] According to such a marker installation device, the marker installation device having a plurality of display units can be used repeatedly quickly and easily, thereby making the marker installation work more efficient.

[0013] <Regarding the First Embodiment> A marker placement device 100 according to the first embodiment will be described with reference to the drawings. Fig. 1 is a schematic perspective view of the marker placement device 100 according to the first embodiment.

[0014] As shown in FIG. 1, the marker placement device 100 according to the first embodiment has a gripping unit 1, a support unit 10, and a display unit 20, and is placed on the upper surface of an object X to be scanned.

[0015] The gripping unit 1 is rod-shaped and extends in the vertical direction, and has a first end 2 and a second end 3. The first end 2 is placed and fixed on the upper surface of the scan target X. In the first embodiment, a first magnet 2a (see FIG. 3) is provided inside the first end 2, and the first end 2 is fixed to the scan target X, which is a ferromagnetic material (such as a magnet or iron), by the attractive force of the magnet. Therefore, the first end 2 of the gripping unit 1 can be repeatedly attached to and detached from the scan target X, which is a ferromagnetic material.

[0016] The gripping part 1 is provided with a second end 3 on the opposite side in the up-down direction to the first end 2. The second end 3 is joined to the central underside of the support part 10, and the support part 10 is supported by the gripping part 1. In the first embodiment, a second magnet 3a (see FIG. 3) is provided inside the second end 3, and is fixed by being attracted to a magnet (not shown) provided inside the central part of the support part 10.

[0017] The support part 10 is supported by the grip part 1, is rod-shaped, and extends outward in a direction intersecting the up-down direction from the center part supported by the grip part 1. In the first embodiment, the support part 10 extends outward on both sides (outward at intervals of 180 degrees), and has two support parts 10, a first support part 11 and a second support part 12, which are provided at an angle of approximately 90 degrees from each other.

[0018] The display unit 20 is circular, with a blackened circle displayed on it, and is a portion that allows a scanning device (not shown) to recognize the position information of the object to be scanned X. The display unit 20 is provided in five locations: both ends of the first support part 11 and the center and both ends of the second support part 12. Note that the shape of the display unit 20 is not limited to a circle, and it may be elliptical, rectangular, or the like, and the display does not need to be a black circle; any shape will do as long as it can be recognized by the scanning device.

[0019] As described above, the marker placement device 100 is fixed by the magnetic attraction between the object to be scanned X and the holding portion 1, so that, for example, after reading the position information of the display portion 20 of the marker placement device 100 with a scanning device, it is easy to quickly remove it, and it is also easy to attach it to another position on the object to be scanned X.

[0020] In other words, the marker placement device 100 of the first embodiment has an up-down direction, extends along the up-down direction, and is equipped with a gripping portion 1 that is joined to the object to be scanned X at a first end 2, a support portion 10 that is joined to a second end 3 on the opposite side of the first end 2 of the gripping portion 1 and extends in a direction intersecting the up-down direction, and a display portion 20 that is provided at both ends of the support portion 10 and in the center of the support portion 10 and displays position information of the object to be scanned X, and the joining portion of the first end 2 can be attached and detached from the object to be scanned X multiple times.

[0021] This allows the marker placement device 100 equipped with a plurality of display units 20 to be used repeatedly, quickly and easily, thereby improving the efficiency of the marker placement work.

[0022] 1, the first support part 11 and the second support part 12 are not positioned at overlapping positions when viewed from the top and bottom. This makes it possible to provide position information of the object X to be scanned at five locations in total: two locations on the display part 20 of the first support part 11 and three locations on the display part 20 of the second support part 12.

[0023] In other words, in the marker placement device 100 of the first embodiment, the support portion 10 has a first support portion 11 and a second support portion 12, and when viewed from the top and bottom, the display portion 20 of the first support portion 11 and the display portion 20 of the second support portion 12 do not overlap.

[0024] This allows for the installation of multiple support parts 10 (first support part 11 and second support part 12) and the display parts 20 do not overlap when viewed from the top and bottom, making it possible to install a larger number of display parts 20 at once.

[0025] In fact, when comparing scanning work using the marker placement device 100 of the first embodiment with conventional scanning work in which markers are attached and removed one by one, it was possible to reduce the work time using the marker placement device 100 of this embodiment to approximately 25% of the conventional work time (from about 20 minutes to about 5 minutes).

[0026] The support portion 10 is not limited to the first support portion 11 and the second support portion 12, but may include only the first support portion 11, or may include three or more support portions.

[0027] 1 has a length L of 50 mm to 500 mm, and in the first embodiment, the length L is approximately 125 mm. The display unit 20 has a diameter D of 5 mm to 100 mm, and in the first embodiment, the diameter D is approximately 10 mm.

[0028] In other words, the marker placement device 100 of the first embodiment has a length L in a direction intersecting the vertical direction of the support part 10 of 50 mm or more and 500 mm or less, and the display part 20 is circular in shape and has a diameter of 5 mm or more and 100 mm or less.

[0029] In this way, by setting the length L of the support part 10 to be 50 mm or more and 1000 mm or less, the optimal display interval for the object to be scanned X can be achieved, and by making the shape of the display part 20 circular and setting the diameter D to be 5 mm or more and 500 mm or less, the display part 20 can be made to have optimal identifiability.

[0030] Figures 2(a) and (b) are diagrams showing the stored state of the marker installation device 100 according to the first embodiment. Figure 2(a) is a schematic plan view of the marker installation device 100 when stored, taken along arrow A in Figure 2(b), and Figure 2(b) is a schematic front view of the marker installation device 100 when stored.

[0031] As shown in Figures 2(a) and 2(b), when the marker placement device 100 according to the first embodiment is stored, the first support part 11 and the second support part 12 are in a state where they overlap when viewed from the top and bottom.

[0032] This is possible because the second end 3 of the gripping portion 1 and the central portion of the first support portion 11, and the central portion of the first support portion 11 and the central portion of the second support portion 12 are rotatably arranged. In other words, the gripping portion 1, the first support portion 11, and the second support portion 12 are provided with a rotation mechanism (not shown), and have the same rotation axis along the vertical direction at the center position of their respective central portions.

[0033] In other words, the support portion 10 of the marker placement device 100 according to the first embodiment has a rotation axis along the vertical direction at the center of the second end portion 3 of the holding portion 1, and is configured to be freely rotatable around the rotation axis.

[0034] In this way, since the support part 10 is provided to be rotatable, it becomes easy to adjust the position of the display part 20. Furthermore, when there are multiple support parts 10 (first support parts 11 and second support parts 12), they can be stacked vertically, making it possible to make the device compact when stored.

[0035] 2, the display unit 20 is provided and fixed to the first display installation portion 11a of the first support portion 11 and the upper side of the second display installation portion 12a of the second support portion 12. In this embodiment, the display unit 20 is detachable from the first display installation portion 11a and the second display installation portion 12a.

[0036] More specifically, the display unit 20 is made of a ferromagnetic material, and magnets (not shown) are provided inside the first display installation unit 11a and the second display installation unit 12a. That is, the display unit 20 is fixed to the first display installation unit 11a and the second display installation unit 12a by the attractive force of the magnets, so that the display unit 20 can be easily replaced using a scanning device. In addition, although the display unit 20 is provided on the upper side in the first embodiment, it is also possible to provide a display unit different from the display unit 20 on the lower side, for example, and use the support unit 10 upside down as necessary.

[0037] That is, the display unit 20 of the marker placement device 100 according to the first embodiment is detachable from the support unit 10. By making the display unit 20 detachable from the support unit 10 and replaceable, it becomes easy to change the display unit 20 depending on the scanning device or the object X to be scanned.

[0038] Furthermore, as described above, the marker placement device 100 according to the first embodiment has magnets provided at the first end 2, the second end 3 of the holding portion 1, the first display placement portion 11a of the support portion 10, and the second display placement portion 12a, and uses a joining method that utilizes the attractive force of the magnets.

[0039] That is, the marker installation device 100 according to the first embodiment uses a joining method using magnetic attractive force for at least the display unit 20, the first end 2, and a part of the second end 3. By using a joining method using magnetic attractive force, the marker installation device 100 can be repeatedly attached and detached, and the joining force during attachment and detachment can be easily adjusted.

[0040] Fig. 3 is a schematic front view of the grip part 1. As shown in Fig. 3, the grip part 1 has a first magnet 2a inside the first end part 2, a second magnet 3a inside the second end part 3, and a second needle part 3b that protrudes from the end part and is retractable.

[0041] As described above, in the first embodiment, since the support 10 and the object to be scanned X are both made of ferromagnetic materials, both the first end 2 and the second end 3 can be joined to the support 10 and the object to be scanned X.

[0042] In other words, when placing the marker placement device 100 on the object to be scanned X, if the second end 3 is joined to the support part 10 (as shown in Figure 1), the marker placement device 100 is placed by joining the first end 2 to the object to be scanned X, and if the first end 2 is joined to the support part 10, the marker placement device 100 is placed by joining the second end 3 to the object to be scanned X.

[0043] For example, if the object to be scanned is made of a material such as polystyrene foam, the first end 2 is attached using the attractive force of the magnet, and therefore cannot be attached to an object to be scanned made of polystyrene foam, which is not a magnetic material.

[0044] In contrast, the second end 3 has a second needle portion 3b in addition to the second magnet 3a, so by piercing and joining the second needle portion 3b to polystyrene foam, which is not magnetic, it is possible to install the marker installation device 100 on the object to be scanned.

[0045] In other words, in the marker placement device 100 according to the first embodiment, both the first end 2 and the second end 3 of the gripping portion 1 are detachable from the object to be scanned X and the support portion 10, and when placing the marker placement device 100 on the object to be scanned X, there are two different methods: one in which the first end 2 is placed on the object to be scanned X with the second end 3 joined to the support portion 10, and the other in which the second end 3 is placed on the object to be scanned X with the first end 2 joined to the support portion 10.

[0046] This allows the first end 2 and the second end 3 of the gripping part 1 to be attached to the scan object X in different ways, making it possible to attach the gripping part to a variety of scan objects. Note that the method of attachment to the scan object is not limited to magnets or needles, and it is also possible to use, for example, adhesives such as double-sided tape, vacuum suction, etc.

[0047] <Regarding the Second Embodiment> Next, a marker installation device 200 according to a second embodiment will be described with reference to the drawings. Fig. 4 is a schematic front view of the marker installation device 200 according to the second embodiment.

[0048] In the following description, only the differences from the first embodiment will be described. That is, the features that differ from the first embodiment will be described in detail, and the description of the parts that have the same configuration as the first embodiment will be omitted.

[0049] 4, the support part 210 of the marker installation device 200 according to the second embodiment has a curved shape. This is because the support part 210 is made of a plastic material that can be deformed by external force, such as manually, and that maintains its shape after deformation. Examples of the plastic material for the support part 210 include a flexible curved ruler (a ruler containing lead), a metal wire such as a coated copper wire, etc.

[0050] This allows the support unit 210 to plastically deform into a shape that follows the curve of the scan object Y, even for a curved scan object Y as shown in Figure 4, and the display unit 20 can allow the scanning device to read accurate position information even for a curved scan object Y.

[0051] That is, the support part 210 of the marker placement device 200 according to the second embodiment is made of a plastic material that maintains its deformed shape after being deformed by an external force. This allows the support part 210 to be shaped to match the shape of the scan target Y, making it possible to provide position information with higher accuracy.

[0052] Also, as shown in Figure 4, the marker placement device 200 according to the second embodiment has an auxiliary part 30 that is in contact with the support part 210 and the object to be scanned Y, between both ends of the support part 210 and the object to be scanned Y.

[0053] The distance from one end to the other end of the auxiliary unit 30 is a height H, which is the same as the height H of the grip unit 1. The auxiliary unit 30 according to the second embodiment is provided with magnets at the portions that come into contact with the support unit 210 and the object to be scanned Y, and is fixed in place by the attractive force of the magnets. Therefore, the distances from the object to be scanned Y are kept constant at the three display units 20 shown in FIG. 4, and the display units 20 can provide more accurate position information of the object to be scanned Y.

[0054] In other words, the marker placement device 200 according to the second embodiment has an auxiliary unit 30 that is positioned between the support unit 210 and the object to be scanned Y and abuts against both, thereby keeping the distance between the display unit 20 and the object to be scanned Y constant.

[0055] In this way, the auxiliary part 30 can maintain a constant distance between the object to be scanned Y and the display part 20, thereby providing more precise position information. When the auxiliary part 30 is used, the support part 210 does not necessarily have to be made of a plastic material; even if it is made of an elastic material, there is no problem as long as it can be fixed by the auxiliary part 30.

[0056] <Regarding the Third Embodiment> Next, a marker installation device 300 according to a third embodiment will be described with reference to the drawings. Figures 5(a) and 5(b) are schematic front views of the marker installation device 300 according to the third embodiment, with Figure 5(a) showing a state in which the support section 310 is shortened and Figure 5(b) showing a state in which the support section 310 is lengthened.

[0057] 5(a) and 5(b), the marker installation device 300 according to the third embodiment includes an extension / retraction mechanism 311. The extension / retraction mechanism 311 is a cylindrical member that extends along the support part 310, and the support part 310 is inserted into the cylindrical member from both sides.

[0058] When it is desired to position the display unit 20 on the inside, the outer support unit 310 is inserted all the way into the extension mechanism 311 (all the way to the inside), as shown in Fig. 5(a). Conversely, when it is desired to position the display unit 20 on the outside, the outer support unit 310 is inserted all the way to the front of the extension mechanism 311 (all the way to the outside), as shown in Fig. 5(b).

[0059] That is, the support part 310 of the marker placement device 300 according to the third embodiment is provided with an extension mechanism 311 that can adjust the length in a direction intersecting the up-down direction. Since the length of the support part 310 can be adjusted, the position of the display part 20 can be easily adjusted.

[0060] The extension / contraction mechanism 311 that extends and contracts the support part 310 is not limited to the structure shown in FIG. 5, and may be, for example, a mechanism in which the support part is divided into two parts that can be overlapped, and the length of the overlap is adjusted to extend and contract the support part.

[0061] <Regarding the Fourth Embodiment> Next, a marker installation device 400 according to a fourth embodiment will be described with reference to the drawings. Fig. 6 is a diagram showing the marker installation device 400 according to the fourth embodiment in a housed state.

[0062] As shown in FIG. 6, a marker installation device 400 according to the fourth embodiment has a hinge 411 on the outer periphery of a central portion 412 of a support portion 410, which rotatably connects the central portion 412 and the support portion 410.

[0063] The rotation axis of hinge 411 is along a direction intersecting the up-down direction, and in the fourth embodiment, since central portion 412 is circular, the rotation axis is along a tangential direction of central portion 412. In Fig. 6, the rotation axis of hinge 411 is in a direction penetrating the plane of the paper.

[0064] In FIG. 6, the support part 410 is in a stored state, but when the hinge 411 is opened like an umbrella, a stopper part (not shown) is provided on the hinge 411 so that the support part 410 stops in a direction intersecting the vertical direction.

[0065] Therefore, when the support part 410 is rotated in the opening direction from the state shown in Figure 6, the support part 410 stops in a state in which it extends in a direction intersecting the vertical direction, and the display part 20 at both ends is positioned in a predetermined position.

[0066] That is, the support part 410 of the marker placement device 400 according to the fourth embodiment has a rotation axis along a direction intersecting the vertical direction on the outer periphery of the central part 412 of the support part 410, and is provided so as to be rotatable around the rotation axis. This allows the support part 410 to be folded like an umbrella, making it compact when stored.

[0067] <Other embodiments> The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and it goes without saying that the present invention includes equivalents thereof.

[0068] Furthermore, the present invention can include at least the following embodiments, which can be adopted separately or in combination with each other.

[0069] (1) The marker installation device is characterized in that the support portion has a first support portion and a second support portion, and the display portion of the first support portion and the display portion of the second support portion do not overlap when viewed from the top-bottom direction. Since the device has multiple support portions and the display portions do not overlap when viewed from the top-bottom direction, it becomes possible to install a larger number of display portions at one time.

[0070] (2) The marker placement device is characterized in that the support part has a rotation axis along the vertical direction at the center of the second end part of the grip part and is rotatable around the rotation axis. The rotatable support part makes it easy to adjust the position of the display part. Furthermore, when multiple support parts are provided, they can be stacked vertically, allowing for compact storage.

[0071] (3) The marker placement device is characterized in that the support part has a rotation axis along a direction intersecting the vertical direction on the outer periphery of the central part of the support part, and is provided so as to be rotatable around the rotation axis. The support part can be folded like an umbrella, so it can be stored compactly.

[0072] (4) The marker placement device is characterized in that the display unit is detachable from the support unit. By making the display unit detachable from the support unit and replaceable, it becomes easy to change the display unit depending on the scanning device or the object to be scanned.

[0073] (5) The marker placement device is characterized in that both the first end and the second end of the gripping part are detachable from the object to be scanned and the support part, and when placing the marker placement device on the object to be scanned, a method of placing the first end on the object to be scanned while the second end is joined to the support part is different from a method of placing the second end on the object to be scanned while the first end is joined to the support part. Because the first end and the second end of the gripping part are placed on the object to be scanned in different ways, it becomes possible to place the marker placement device on a variety of objects to be scanned.

[0074] (6) A marker installation device characterized in that a joining method using magnetic attraction is used for at least the display unit, the first end, and a part of the second end. By using a joining method using magnetic attraction, the device can be repeatedly attached and detached, and the joining force during attachment and detachment can be easily adjusted.

[0075] (7) In the marker placement device, the support part is made of a plastic material that maintains its shape after being deformed by an external force. Since the support part can be shaped to match the shape of the object to be scanned, more accurate position information can be provided.

[0076] (8) A marker installation device characterized in that the support part has an extension mechanism that can adjust the length in a direction intersecting the vertical direction. By being able to adjust the length of the support part, it becomes easy to adjust the position of the display part.

[0077] (9) A marker placement device characterized by having an auxiliary part positioned between the support part and the object to be scanned, abutting against both, and maintaining a constant distance between the display part and the object to be scanned. Because the auxiliary part can maintain a constant distance between the object to be scanned and the display part, a marker placement device can be provided that can provide even more precise position information.

[0078] (10) A marker installation device characterized in that the length of the support part in a direction intersecting the vertical direction is 50 mm to 500 mm, and the display part is circular in shape and has a diameter of 5 mm to 100 mm. By making the length of the support part 50 mm to 500 mm, an optimal display interval for the scanned object can be achieved, and by making the display part circular in shape and having a diameter of 5 mm to 100 mm, a display part with optimal identifiability can be achieved. [Explanation of symbols]

[0079] 1 Grip part 2 First end 3 Second end 10 Support part 11 First support part 12 Second support part 20 Display section 100 Marker placement device X Scan Object

Claims

1. It has a vertical direction, a gripping portion having a rod shape extending in the up-down direction and including a first end and a second end opposite to the first end, the first end being fixed to the object to be scanned; a rod-shaped support portion that is joined to the second end portion of the grip portion at a lower surface of a central portion in a longitudinal direction and is supported by the grip portion, thereby extending outward from the central portion in a direction intersecting the up-down direction; display units provided at both ends of the support unit and at a center of the support unit, the display units displaying position information of the object to be scanned; A marker placement device comprising: In the gripping portion, the second end portion has a second magnet therein, and the first end portion has a first magnet therein, and the second end portion can also be fixed to the object to be scanned; the support portion has a magnet provided inside the central portion, and the magnet is attracted to both the first end portion and the second end portion of the grip portion, thereby allowing the support portion to be fixed to the grip portion; The marker placement device is characterized in that the first end and the second end of the gripping portion can be attached and detached multiple times to the object to be scanned.

2. The marker placement device according to claim 1, the support portion has a first support portion and a second support portion, a central portion of the first support portion and a central portion of the second support portion have the same rotation axis along the up-down direction, and the first support portion and the second support portion are rotatable, The marker placement device is characterized in that, when viewed from the top and bottom direction, the display portion of the first support portion and the display portion of the second support portion can be in a non-overlapping state or an overlapping state.

3. The marker placement device according to claim 1, The marker placement device is characterized in that the support portion has a rotation axis along the vertical direction at the center of the second end of the gripping portion, and is configured to be freely rotatable around the rotation axis.

4. The marker placement device according to claim 1, The marker placement device is characterized in that the support portion has a rotation axis on the outer periphery of the central portion of the support portion that runs along a direction that intersects the vertical direction, and is configured to be freely rotatable around the rotation axis.

5. The marker placement device according to claim 1, The marker installation device is characterized in that the display unit is made of a ferromagnetic material, a magnet is provided inside the display installation unit in the support unit, and the display unit is detachable from the display installation unit.

6. The marker placement device according to claim 1, the first end and the second end of the gripping portion are both detachable from the object to be scanned and the support portion; When placing the marker placement device on the object to be scanned, a method of placing the first end on the object to be scanned with the second end joined to the support; a method of placing the second end on the object to be scanned while the first end is joined to the support; The marker placement device is characterized in that it is possible to:

7. The marker placement device according to claim 5 or 6, The marker placement device is characterized in that at least the display unit, the first end, and a part of the second end are joined using a joining method using magnetic attraction.

8. The marker placement device according to claim 1, The marker placement device is characterized in that the support portion is made of a plastic material that maintains its deformed shape after being deformed by an external force.

9. The marker placement device according to claim 1, The marker placement device is characterized in that the support part is equipped with an extension mechanism that can adjust the length in a direction intersecting the vertical direction.

10. The marker placement device according to claim 1, a support member positioned between the support portion and the object to be scanned and in contact with both of them; The marker placement device is characterized by having an auxiliary unit that keeps the distance between the display unit and the object to be scanned constant.

11. The marker placement device according to claim 1, The length of the support portion in a direction intersecting the vertical direction is 50 mm or more and 500 mm or less, The marker placement device is characterized in that the display unit is circular in shape and has a diameter of 5 mm to 100 mm.

Citation Information

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