Pitch marking tool

Abstract

To provide a compact and user-friendly pitch marking tool capable of setting a plurality of kinds of marking intervals by one rolling element, and easily performing the changing work.SOLUTION: The marker unit 5 is configured such that a marker body 52 is housed in a case 6 such that a marking means 51 provided at a distal end of the marker body 52 protrudes and retracts from one end 61 of the case 6 in a radial direction of the rolling element 4. An engaging means for temporarily fixing the tip of the marker body 52 in a projected state is provided at a connection part between the marker body 52 and the case 6, and the tip of the marker unit 5 arbitrarily selected from the plurality of marker units 5 can be individually projected from and retracted into the peripheral surface 41 of the rolling body 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The invention disclosed in this application relates to a pitch marking tool that marks the positions on a board to which fasteners, such as screws or nails, should be driven in to match the position of the base material when fastening the board, such as gypsum board, plywood, or other board material to a base material such as a partition wall, ceiling, or floor. [Background technology]

[0002] During the construction of building partition walls, ceilings, floors, and the like, work involves fastening plasterboard, plywood, and other boards to base materials, such as studs, runners, crosspieces, furring strips, and ceiling joists, using fasteners such as screws and nails. After arranging the boards to fit the spacing between the base materials, multiple fasteners are driven at predetermined intervals from the front side of the boards toward the back side of the base material. Therefore, various marking tools have been proposed for marking the positions where the fasteners should be driven at appropriate intervals on the surface of the boards. The marking tools disclosed in Patent Documents 1 to 5, etc., are configured as follows: an arm, a handle, a suitable-length handling member, or other member, has a rotating shaft at the tip; rolling elements, such as disks, rollers, drums, and wheels, are rotatably attached to the rotating shaft; and markers, such as pens, stamps, and punches, are attached at predetermined intervals around the rolling elements. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 59-132786 [Patent Document 2] Registered Utility Model No. 3021476 [Patent Document 3] Japanese Patent Application Publication No. 10-039767 [Patent Document 4] Japanese Patent Application Laid-Open No. 2009-083006 [Patent Document 5] Japanese Patent Application Publication No. 2020-165789 Summary of the Invention [Problem to be solved by the invention]

[0004] Among the conventional marking tools, those described in Patent Documents 1 and 2 have markers fixed to the circumferential surfaces of the rolling elements, so the marking intervals cannot be changed. Those described in Patent Documents 3, 4, and 5 are configured so that multiple types of rolling elements attached to a handling member are prepared and replaceable, and the marking intervals can be changed by varying the diameter of each rolling element or the intervals between markers. However, bringing multiple types of rolling elements to the work site and replacing them there is inefficient in terms of portability and workability.

[0005] Patent Document 5 also discloses a configuration in which multiple screw holes are provided on the circumferential surface of the rolling element and protruding markers are selectively attached to the screw holes to change the marking interval. While this improves portability, it is cumbersome to attach and detach the markers from the screw holes, and there is a risk that the detached markers may be lost at the work site.

[0006] The invention disclosed in this application was conceived to improve the inconveniences described above, and aims to provide a compact, easy-to-use pitch marking tool that can set multiple marking intervals with a single rolling element and can easily change the intervals. [Means for solving the problem]

[0007] The invention disclosed in the present application is characterized as a pitch marking tool comprising a handling member having a rotating shaft at its tip, at least one rolling element rotatably attached to the rotating shaft, and a plurality of markers attached to the circumferential surface of the rolling element at predetermined intervals along its circumferential direction, wherein the marker is configured as a marker unit combining a marker body having a marking means at its tip and a case for storing the marker body, and the plurality of marker units are assembled to the rolling element with one end of the case opening to the circumferential surface of the rolling element, the marker body is held within the case so that its tip can be extended and retracted radially from one end of the case of the rolling element, and an engagement means for temporarily securing the tip of the marker body in a state where it protrudes from the circumferential surface of the rolling element is provided at the joint between the marker body and the case, thereby allowing the tip of a marker unit arbitrarily selected from the plurality of marker units to be individually extended and retracted on the circumferential surface of the rolling element.

[0008] In this pitch marking tool, it is practical to arrange the plurality of marker units at positions that equally divide the circumferential length of the rolling element by a plurality of integer values ​​of two or more.

[0009] This pitch marking tool is also characterized in that the case has a storage space formed therein that allows the marker body to be moved radially around the rolling element, and the engagement means includes engagement protrusions formed on the inside of the storage space and on the marker body, respectively, that engage and disengage with each other, and a biasing member that biases and holds the marker body toward the side where the engagement protrusions engage.

[0010] Furthermore, the marker body is characterized in that an operating portion that serves as a finger grip or knob when moving the marker body along the radial direction of the rolling body is provided so as to be exposed on the side of the rolling body (the surface perpendicular to the circumferential surface: the bottom surface in the cylindrical shape).

[0011] In addition, this pitch marking tool may be one in which a plurality of rolling elements having the same diameter are attached to the rotating shaft so that they are parallel to each other and the arrangement of each marker unit is aligned with each other. [Effects of the Invention]

[0012] The pitch marking tool configured as described above is configured so that each of the multiple marker units attached to the rolling element can individually extend and retract the marker body housed in the case from one end of the case. Therefore, the marking interval can be easily changed by protruding the marker body of any marker unit selected according to the marking interval from the circumferential surface of the rolling element and storing the marker bodies of unnecessary marker units in the case. Since multiple marking intervals can be set with a single rolling element without the need for detaching or replacing parts, this improves workability on site and portability as a tool. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a plan view of a main part of a pitch marking tool according to an embodiment of the present invention, as viewed from above. FIG. [Figure 2] FIG. 2 is a side view of the main part of the pitch marking tool. [Figure 3] FIG. 3 is an enlarged side view showing an example of the configuration of a marker unit in the pitch marking tool. [Figure 4] 3A to 3C are cross-sectional views showing an example of the configuration and operation of the marker unit. [Figure 5] 10A and 10B are enlarged side views and a cross-sectional view of another example of the configuration of the marker unit. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the invention disclosed in the present application will be described with reference to the drawings. Figures 1 to 4 schematically show the configuration of a pitch marking tool according to one embodiment of the invention disclosed in the present application. The pitch marking tool 1 according to the invention disclosed in the present application comprises a handling member 3 having a rotating shaft 2 at its tip, a rolling element 4 rotatably attached to the rotating shaft 2, and a plurality of markers (marker units) 5 attached to a peripheral surface 41 of the rolling element 4 at predetermined intervals along the circumferential direction thereof.

[0015] The handling member 3 is a long, thin member having a part (not shown) that can be easily held and handled by hand, such as an arm, a handle, or the like. However, in the invention disclosed in this application, the specific shape, size, material, etc., of the handling member 3 are not particularly limited.

[0016] The rotating shaft 2 is provided at or near the tip of the handling member 3, perpendicular to the longitudinal direction of the handling member 3. In the embodiment shown in FIG. 1, a short cylindrical bearing portion 21, through which the rotating shaft 2 can be inserted, is joined to the tip of the handling member 3 so as to intersect in a T-shape in plan view. The rotating shaft 2 protrudes outward to the left and right of the bearing portion 21, and disk-shaped rolling elements 4, 4 having the same diameter are attached to the left and right protruding portions so as to be parallel to each other. Furthermore, a retaining member 22 is detachably attached to the outside of the rolling elements 4, 4. In the embodiment shown in FIG. 1, two annular spacers 23 are interposed on each side between the bearing portion 21 and the rolling elements 4, 4. By attaching, detaching, and replacing these spacers 23, the opposing distance between the left and right rolling elements 4, 4 can be freely changed.

[0017] Marker units 5, which form the essential part of the invention disclosed herein, are attached at multiple locations on the outer periphery of each rolling element 4. Each marker unit 5 is composed of a marker main body 52 having marking means 51 at its tip, combined with a case 6 that houses the marker main body 52. ​​The marking means 51 is a puncture needle, punch, pen, stamp, or the like that can make an appropriate mark on the construction surface to be marked (for example, the surface of gypsum board, plywood, etc.). The type of marking means may be selected appropriately depending on the material of the construction surface to be marked and the purpose of the construction.

[0018] 3 and 4 show an example of the configuration of the marker unit 5. In the illustrated embodiment, a marker main body 52, which has marking means 51 attached to the tip of a short rod-shaped member, is housed in a long, thin rectangular parallelepiped case 6. When a pen or stamp is used as the marking means 51, the inside of the marker main body 52 may be filled with ink.

[0019] The case 6 is assembled to the rolling element 4 with its longitudinal direction facing the radial direction of the rolling element 4 and one end 61 opening to the circumferential surface 41 of the rolling element 4. A storage space is formed inside the case 6 so that the marker body 52 can be moved along its longitudinal direction in the longitudinal direction of the case 6 (radial direction of the rolling element 4). This storage space may also have a clearance formed in it so that the marker body 52 can also be moved in a direction intersecting the longitudinal direction, as necessary. The marker body 52 is stored in the case 6 so that the marking means 51 provided at the tip of the marker body 52 can appear and disappear from one end (open end) 61 of the case 6.

[0020] An engagement means is provided at the interface between the marker body 52 and the case 6 for temporarily securing the marker body 52 in a state in which its tip protrudes from the circumferential surface 41 of the rolling element 4 and a state in which its tip is recessed into the circumferential surface 41 of the rolling element 4. In the state shown in FIG. 4 in which the side surface 42 of the rolling element 4 (a flat surface perpendicular to the circumferential surface 41 of the rolling element 4) is placed horizontally, the engagement means in the illustrated embodiment includes an engagement protrusion 53 protruding from the upper side of the marker body 52, an engagement protrusion 63 protruding from the lower side of the top surface 62 of the case 6, and a biasing member 54 attached to the underside of the marker body 52 for pushing the marker body 52 upward. The engagement protrusion 53 on the marker body 52 side has a tapered surface 531 that slopes downward toward the tip side formed on the tip side of the marker body 52, and an upright surface 532 that is substantially perpendicular to the longitudinal direction of the marker body 52 formed on the rear end side of the marker body 52, and has a side shape of a substantially right-angled triangle or a substantially right-angled trapezoid.

[0021] On the other hand, the engagement protrusion 63 on the case 6 side has a vertical surface 632 that is substantially perpendicular to the longitudinal direction of the case 6 on one end 61 side of the case 6, and a tapered surface 631 that slopes upward toward the other end side on the other end side of the case 6, and has a side shape that is substantially a right-angled triangle or a substantially right-angled trapezoid. When the tip of the marker main body 52 is immersed in the peripheral surface 41 of the rolling element 4 (FIG. 4(a)), the engagement protrusion 53 on the marker main body 52 side is located closer to the other end side of the case 6 than the engagement protrusion 63 on the case 6 side, and when the tip of the marker main body 52 protrudes from the peripheral surface 41 of the rolling element 4 (FIG. 4(c)), the engagement protrusion 53 on the marker main body 52 side is located closer to the one end 61 side of the case 6 than the engagement protrusion 63 on the case 6 side.

[0022] In the illustrated embodiment, the biasing member 54 is configured using a curved or bent thin flat spring, and is attached to two locations, the front and rear, of the marker main body 52 so that the curved or bent surface of the thin flat spring abuts against the bottom surface 64 of the case 6. Such a biasing member 54 constantly pushes up the marker main body 52, biasing and holding the engaging protrusion 53 on the marker main body 52 side and the engaging protrusion 63 on the case 6 side in an abutting or engaged state.

[0023] Furthermore, an operating part 55 is provided near the rear end of the marker body 52, which serves as a finger grip or knob when moving the marker body 52 along its longitudinal direction. The operating part 55 is joined to the marker body 52 with its neck part 551 inserted into a groove 65 formed in the top surface part 62 of the case 6, and is attached so as to be exposed on the side surface 42 of the rolling element 4.

[0024] With the marker unit 5 provided with such an engagement means, when the operating part 55 is pushed into the case 6 and moved toward the peripheral surface 41 of the rolling element 4 from a state in which the tip of the marker body 52 is immersed in the peripheral surface 41 of the rolling element 4 (FIG. 4(a)), as shown in FIG. 4(b), the marker body 52 deforms the biasing member 54 and sinks, and moves toward the tip while the tapered surface 531 of the engagement protrusion 53 on the marker body 52 side and the tapered surface 631 of the engagement protrusion 63 on the case 6 side rub against each other. Then, when the engagement protrusion 53 on the marker body 52 side passes under the engagement protrusion 63 on the case 6 side and their relative positions are reversed, the upright surface 532 of the engagement protrusion 53 on the marker body 52 side and the downward surface 632 of the engagement protrusion 63 on the case 6 side engage with each other, as shown in FIG. 4(c), and this engaged state is maintained by the repulsive force of the biasing member 54. In this way, the marker body 52 is restrained in a state in which its tip protrudes from the peripheral surface 41 of the rolling element 4.

[0025] To retract the tip of the marker main body 52, similarly, push the operating part 55 into the case 6 and move it toward the center of the rolling element 4, and after passing through the state shown in FIG. 4(b), the positional relationship between the engagement protrusion 53 on the marker main body 52 side and the engagement protrusion 63 on the case 6 side is again reversed, and the state shown in FIG. 4(a) is maintained. In this way, by the simple operation of pushing the operating part 55 into the case 6 and moving it in the radial direction of the rolling element 4, the tip of the marker main body 52 can be made to protrude and retract on the circumferential surface 41 of the rolling element 4. This operation of protruding and retracting the marker 5 can be performed independently for each marker unit 5.

[0026] FIG. 5 shows another example of the configuration of the engagement means. In the illustrated engagement means, when the side surface 42 of the rolling element 4 is placed horizontally and viewed from above as shown in FIGS. 5(a) and 5(b), the engagement protrusion 56 on the marker main body 52 and the engagement protrusion 66 on the case 6 are configured to engage with each other at the sides of the marker main body 52. ​​Both engagement protrusions 56, 66 are formed in a generally rectangular shape when viewed from above. In addition, in this example, a biasing member 54 that biases and holds the marker main body 52 so that the engagement protrusions 56 and 66 engage is attached to the bottom surface 64 of the case 6, pushing up the marker main body 52. ​​As in the previous example, an operating portion 55 is provided near the rear end of the marker main body 52 and is exposed on the side surface 42 of the rolling element 4.

[0027] In this configuration example, when the operating part 55 is pushed into the case 6 to sink the marker body 52 from a state in which the tip of the marker body 52 is sunk into the peripheral surface 41 of the rolling element 4 (FIG. 5(c)), the engaging protrusion 56 on the marker body 52 side passes under the engaging protrusion 66 on the case 6 side and moves toward the tip side, reversing their relative positions and engaging with each other, thereby restraining the marker body 52 in a state in which its tip protrudes from the peripheral surface 41 of the rolling element 4. The operation of sunk-in the tip of the marker body 52 is similar. With this configuration, the marker unit 5 can be formed relatively compact compared to the configuration examples shown in FIGS. 3 and 4.

[0028] As described above, the individually operable marker units 5 are attached to multiple locations along the circumferential direction of the rolling element 4. The marker units 5 are preferably arranged so that the circumferential length (the central angle around the rotation axis 2) of the rolling element 4 is equally divided into multiple integer values ​​(2, 3, 4, ...) of two or more. In the embodiment shown in FIG. 1 , the marker units 5 are arranged at positions that divide the circumferential length into 2, 3, 4, 5, and 6 equal parts, with the lowest point (6 o'clock) in contact with the construction surface as the starting point. By adopting such spacing, for example, when the circumferential length of the rolling element 4 is 600 mm (the diameter of the rolling element 4 is approximately 191 mm), marking can be performed at any of six fastening pitches: 100 mm, 120 mm, 150 mm, 200 mm, 300 mm, and 600 mm. The side surface 42 of the rolling element 4 preferably displays the numerical value of the fastening pitch corresponding to each marker unit 5. Of course, this spacing can be changed as needed depending on the construction circumstances, etc.

[0029] The marking interval can be easily changed by protruding the marker body 52 of any marker unit 5 selected according to the marking interval from the peripheral surface 41 of the rolling element 4, and storing the marker body 52 of the marker unit 5 that is not needed inside the case 6. Multiple types of marking intervals can be set with one rolling element 4 without the need to detach or replace parts, which improves workability on site. There is no risk of losing parts when detaching or replacing them, and the portability of the tool is improved, greatly improving workability.

[0030] In the illustrated embodiment, as shown in Figure 2, the left and right rolling elements 4, 4 are attached to the rotating shaft 2 so that the arrangement of each marker unit 5 is aligned with each other (the positions of each marker unit 5 overlap with each other when viewed from the extension direction of the rotating shaft 2). Therefore, by arbitrarily selecting the fastening pitch of the marker units 5 of the left and right rolling elements 4, 4, it is possible to simultaneously mark two rows at the same fastening pitch or two rows at different fastening pitches. In order to align the arrangement of the marker units 5 of the left and right rolling elements 4, 4, appropriate engagement means 24 (see Figure 1) for aligning the positions of the zero origins of the rolling elements 4 may be provided, for example, at the interface between the rotating shaft 2 and each rolling element 4, 4.

[0031] The distance between the left and right rolling elements 4, 4 (the distance between the marking rows) can be adjusted by attaching and detaching the spacers 23, as described above. In addition, in the pitch marking tool 1 illustrated, the marker units 5 are provided on both the left and right rolling elements 4, 4, but the marker unit 5 may be provided on only one of the rolling elements 4.

[0032] The technical scope of the invention disclosed herein should not be construed as being limited by the exemplified embodiments, but should be construed conceptually based on the claims. The names of elements used in the claims and the specification are for convenience in making the invention easier to understand, and the names do not unnecessarily limit the concepts or properties of the elements. When implementing the invention disclosed herein, the detailed shape, dimensions, structure, materials, quantity, connection form with other elements, relative positional relationship, etc. of elements not specifically specified in the claims may be appropriately modified within the scope of utilizing an operating principle substantially equivalent to the exemplified embodiments or within the scope of obtaining effects substantially equivalent to or greater than those of the exemplified embodiments. [Industrial Applicability]

[0033] The pitch marking tool disclosed in the present application can be used to mark the positions for driving fasteners such as screws and nails on the surfaces of gypsum board, plywood, and other board materials, and can also be used in a wide range of applications for repeatedly marking appropriate intervals for construction or processing by appropriately selecting a marking means according to the construction surface or processing surface of various components. [Explanation of symbols]

[0034] 1 Pitch marking tool 2 rotation axes 21 Bearing section 22 Anti-slip member 23 Spacer 24 Engagement means 3. Handling parts 4 rolling elements 41 Peripheral surface 42 Side 5 Marker Unit 51 Marking means 52 Marker body 53 Engagement protrusion on the marker body side 531 Tapered surface 532 Erecting surface 54 biasing member 55 Operation section 551 Neck 56 Engagement protrusion on the marker body side 6 cases 61 one end 62 Top section 63 Engagement protrusion on case side 631 Tapered surface 632 Drooping surface 64 Bottom part 65 Slot hole 66 Engagement protrusion on case side

Claims

1. A pitch marking tool comprising: a handling member having a rotary shaft at its tip; at least one rolling element rotatably attached to the rotary shaft; and a plurality of markers attached to the circumferential surface of the rolling element at predetermined intervals along the circumferential direction thereof, The marker is configured as a marker unit that combines a marker body having a marking means at a tip and a case that stores the marker body, a plurality of the marker units are assembled to the rolling element with one end of the case opening to the circumferential surface of the rolling element; the marker body is held in the case so that its tip can protrude and retract from one end of the case in a radial direction of the rolling element, An engagement means for temporarily fixing the tip of the marker body in a state in which the tip protrudes from the peripheral surface of the rolling element is provided at the joint between the marker body and the case, The tip of a marker unit arbitrarily selected from the plurality of marker units can be individually caused to appear and disappear on the circumferential surface of the rolling element. A pitch marking tool characterized by:

2. 2. The pitch marking tool according to claim 1, The plurality of marker units are arranged at positions that equally divide the circumferential length of the rolling element into a plurality of integer values ​​of two or more. A pitch marking tool characterized by:

3. 3. The pitch marking tool according to claim 1 or 2, The case has a storage space formed therein that allows the marker body to move along the radial direction of the rolling element, The engaging means includes an engaging protrusion formed on the inside of the storage space and the marker body, respectively, which engages and disengages with each other, and a biasing member which biases and holds the marker body toward the side where the engaging protrusion engages. A pitch marking tool characterized by:

4. 4. The pitch marking tool according to claim 3, The marker body has an operating portion that serves as a finger grip or knob when moving the marker body along the radial direction of the rolling body, and is provided so as to be exposed on a side surface of the rolling body. A pitch marking tool characterized by:

5. 3. The pitch marking tool according to claim 1 or 2, A plurality of the rolling elements having the same diameter are attached to the rotation shaft in parallel with each other and such that the arrangement of the marker units is aligned with each other. A pitch marking tool characterized by:

Images