Pitch marking tool

Abstract

To provide a compact and easy-to-use pitch marking tool which can set a plurality of types of marking intervals with one rolling element and can easily change the intervals. [Solution] The device 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 marker units 5 attached at predetermined intervals to the peripheral surface 41 of the rolling element 4, wherein the marker unit 5 is configured by storing a marker body 52 within the case 6 so that the marking means 51 attached to the tip thereof protrudes and retracts radially from one end 61 of the case 6, and an engagement means for temporarily fixing the tip of the marker body 52 in a protruding state is provided at the joint between the marker body 52 and the case 6, so that the tip of any marker unit 5 selected from the plurality of marker units 5 can be individually made to protrude and retract on the peripheral surface 41 of the rolling element 4.

Description

Technical Field

[0001] The invention disclosed in the present application relates to a pitch marking tool for marking the driving position of a fastener on a plate material according to the position of a base material when fastening a plate material such as a gypsum board, plywood, or other plate materials to a base material such as a partition wall, ceiling, or floor using fasteners such as screws and nails.

Background Art

[0002] When constructing partition walls, ceilings, floors, etc. of a building, an operation is performed to fasten plate materials such as gypsum boards and plywood to a base material such as studs, runners, crossbars, body edges, and ceiling edge members using fasteners such as screws and nails. At this time, after arranging the plate materials according to the interval of the base material, a large number of fasteners are driven at a predetermined interval from the front surface side of the plate material toward the base material on the back surface side. Therefore, various marking tools have been proposed for appropriately marking the positions where the fasteners should be driven at appropriate intervals on the surface of the plate material in advance. The marking tools disclosed in Patent Documents 1 to 5 and the like are configured such that a rotating shaft is provided at the tip of a handling member having an arm, a handle, a handle, and other appropriate lengths, and a rolling body such as a disk, a roller, a drum, or a wheel is rotatably attached to the rotating shaft, and markers such as pens, stamps, and punches are attached at predetermined intervals along the circumferential direction of the rolling body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Summary of the Invention

[0004] In the conventional marking tools described in Patent Documents 1 and 2, the markers are fixed to the circumferential surface of the rolling elements, making it impossible to change the marking interval. In the tools described in Patent Documents 3, 4, and 5, multiple types of rolling elements are provided and interchangeable for attachment to the handling member, and the marking interval can be changed by varying the diameter of each rolling element or varying the spacing of the markers. However, bringing multiple types of rolling elements to the work site and changing them there is inefficient in terms of portability and work efficiency.

[0005] Patent Document 5 also discloses a configuration in which multiple screw holes are provided on the circumferential surface of the rolling element, and the marking interval is changed by selectively attaching protruding markers to these screw holes. While this improves portability, attaching and detaching the markers to the screw holes is cumbersome, and there is a risk of losing the removed markers at the work site.

[0006] The invention disclosed in this application was conceived to improve the aforementioned inconveniences, and aims to provide a compact and user-friendly pitch marking tool that allows multiple types of marking intervals to be set with a single rolling element, and that allows for easy modification of these intervals. [Means for solving the problem]

[0007] The invention disclosed in this application is a pitch marking tool comprising: a handle member having a rotating shaft at its tip; at least one rolling element rotatably mounted on the rotating shaft; and a plurality of markers mounted on the circumferential surface of the rolling element at predetermined intervals along its circumferential direction, wherein the markers are configured as marker units combining a marker body having a marking means at its tip and a case housing the marker body, and 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 such that its tip can extend and retract from one end of the case in the radial direction of the rolling element, and an engaging means for temporarily fixing 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 enabling the tip of any marker unit selected from the plurality of marker units to be individually extended and retracted from the circumferential surface of the rolling element.

[0008] In this pitch marking tool, it is practical to have multiple marker units positioned at locations that equally divide the circumference of the rolling element into two or more integer values ​​of multiple types.

[0009] Furthermore, this pitch marking tool is characterized in that the case has a storage space formed therein that allows the marker body to move along the radial direction of the rolling element, and the engaging means comprises engaging projections formed on the inside of the storage space and on the marker body, respectively, which engage and disengage from each other, and a biasing member that biases and holds the marker body toward the side into which the engaging projections engage.

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

[0011] Furthermore, this pitch marking tool may also be configured such that a plurality of rolling elements having the same diameter are mounted on the rotating shaft 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, as described above, is configured such that each of the multiple marker units attached to the rolling element can individually extend and retract its marker body, which is housed in a case, from one end of the case. Therefore, the marking interval can be easily changed by making the marker body of any selected marker unit protrude from the circumferential surface of the rolling element according to the marking interval, and storing the marker bodies of unnecessary marker units in the case. Since multiple types of marking intervals can be set with a single rolling element without the need to attach, detach, or replace parts, it improves work efficiency in the field and enhances the portability of the tool. [Brief explanation of the drawing]

[0013] [Figure 1] This is a plan view from above of the main part of a pitch marking tool according to one embodiment of the invention disclosed in this application. [Figure 2] This is a side view of the main part of the pitch marking tool, seen from the side. [Figure 3] This is an enlarged side view showing an example of the configuration of the marker unit in the pitch marking tool. [Figure 4] This is a cross-sectional view showing an example of the configuration and operation of the marker unit. [Figure 5] Enlarged side views (a) and (b), and a cross-sectional view (c) show other configuration examples of the marker unit. [Modes for carrying out the invention]

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

[0015] The handling member 3 is an elongated member having a portion (not shown) that is easy to hold and handle by hand, such as an arm, a handle, or a grip. However, in the invention disclosed in the present application, its specific shape, size, material, etc. are not particularly limited.

[0016] The rotating shaft 2 is provided at the tip or near the tip of the handling member 3 so as to be orthogonal to the length direction of the handling member 3. In the form 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 to the left and right outer sides of the bearing portion 21, and disc-shaped rolling bodies 4, 4 having the same diameter are mounted on the left and right protruding portions so as to be parallel to each other. Further, a retaining member 22 is detachably attached to the outside thereof. Also, in the form shown in FIG. 1, two annular spacers 23 are inserted between the bearing portion 21 and the rolling bodies 4, 4 on the left and right, and by detaching and replacing these spacers 23, the opposing interval between the left and right rolling bodies 4, 4 can be freely changed.

[0017] On the outer peripheral portion of each rolling element 4, marker units 5, which form the main part of the invention disclosed in the present application, are assembled at a plurality of locations. Each marker unit 5 is constituted by combining a marker body 52 having marking means 51 at its tip and a case 6 for housing the marker body 52. The marking means 51 is a puncture needle, punch, pen, stamp, etc. that can appropriately mark a construction surface to be marked (such as the surface of a gypsum board or plywood). Its type may be appropriately selected according to the material of the construction surface to be marked and the construction purpose.

[0018] Figures 3 and 4 show a configuration example of the marker unit 5. In the exemplary form, a marker body 52 provided with marking means 51 at the tip of a short rod-shaped member is housed in a slender rectangular parallelepiped case 6. When a pen or stamp is adopted as the marking means 51, the inside of the marker body 52 may be filled with ink.

[0019] The case 6 is assembled to the rolling element 4 such that its longitudinal direction is directed in the radial direction of the rolling element 4 and one end 61 is opened to the circumferential surface 41 of the rolling element 4. Inside the case 6, a storage space is formed that allows the marker body 52 to move along its longitudinal direction in the longitudinal direction of the case 6 (the radial direction of the rolling element 4). In this storage space, a clearance may be formed that allows the marker body 52 to move in a direction intersecting its longitudinal direction as needed. The marker body 52 is housed in the case 6 such that the marking means 51 provided at its tip can protrude from and retract into one end (open end) 61 of the case 6.

[0020] The joint between the marker body 52 and the case 6 is provided with engaging means for temporarily fixing the marker body 52 in a state where its tip protrudes from the circumferential surface 41 of the rolling element 4, and in a state where it is retracted into the circumferential surface 41 of the rolling element 4. In the exemplary embodiment, the engaging means, in the state shown in Figure 4 where 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, includes an engaging projection 53 projecting from the upper side of the marker body 52, an engaging projection 63 projecting from the lower side of the top surface 62 of the case 6, and a biasing member 54 attached to the lower side of the marker body 52 to push the marker body 52 upward. The engaging projection 53 on the marker body 52 side has a side shape that is approximately a right triangle or approximately a right trapezoid, with a tapered surface 531 formed on the tip side of the marker body 52 that slopes downward toward the tip, and an upright surface 532 formed on the rear end side of the marker body 52 that is approximately perpendicular to the longitudinal direction of the marker body 52.

[0021] On the other hand, the engagement projection 63 on the case 6 side has a side shape that is approximately a right triangle or a right trapezoid, with a downward-sloping surface 632 formed on one end 61 of the case 6 that is approximately perpendicular to the longitudinal direction of the case 6, and a tapered surface 631 formed on the other end of the case 6 that slopes upward toward the other end. When the tip of the marker body 52 is immersed in the circumferential surface 41 of the rolling element 4 (Figure 4(a)), the engagement projection 53 on the marker body 52 side is positioned closer to the other end of the case 6 than the engagement projection 63 on the case 6 side. When the tip of the marker body 52 protrudes from the circumferential surface 41 of the rolling element 4 (Figure 4(c)), the engagement projection 53 on the marker body 52 side is positioned closer to the one end 61 of the case 6 than the engagement projection 63 on the case 6 side.

[0022] In the exemplary embodiment, the biasing member 54 is made of a curved or bent thin plate spring, and is attached to the marker body 52 at two locations, front and back, such that the curved or bent surface of the thin plate spring abuts against the bottom surface 64 of the case 6. This biasing member 54 constantly pushes up the marker body 52, biasing and holding the engaging projection 53 on the marker body 52 side and the engaging projection 63 on the case 6 side in a contact or engaged state.

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

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

[0025] To retract the tip of the marker body 52, similarly, by pushing the operating part 55 into the case 6 and moving it toward the center of the rolling element 4, the positional relationship between the engaging projection 53 on the marker body 52 and the engaging projection 63 on the case 6 is reversed again, as shown in Figure 4(b), and the positional relationship is then reversed again, as shown in Figure 4(a). In this way, the tip of the marker body 52 can be extended and retracted from the circumferential surface 41 of the rolling element 4 with a simple operation of pushing the operating part 55 into the case 6 and moving it radially. This marker 5 extension and retraction operation can be performed independently for each individual marker unit 5.

[0026] Figure 5 shows another example of the engagement mechanism configuration. In the example engagement mechanism, when the side surface 42 of the rolling element 4 is placed horizontally and viewed from above, as shown in Figures 5(a) and (b), the engagement projection 56 on the marker body 52 side and the engagement projection 66 on the case 6 side engage with each other on the side of the marker body 52. ​​Both engagement projections 56 and 66 are formed in a substantially rectangular shape when viewed from above. In this example, a biasing member 54 that biases and holds the marker body 52 so that the engagement projections 56 and 66 engage is attached to the bottom surface 64 of the case 6, pushing up the marker body 52. ​​The operating part 55 is provided near the rear end of the marker body 52 and is exposed on the side surface 42 of the rolling element 4, which is the same as in the previously described configuration example.

[0027] In this configuration example, when the tip of the marker body 52 is immersed in the circumferential surface 41 of the rolling element 4 (Figure 5(c)), pushing the operating part 55 into the case 6 causes the marker body 52 to sink further in. The engaging projection 56 on the marker body 52 side passes under the engaging projection 66 on the case 6 side and moves towards the tip, reversing their relative positions and engaging with each other. This restrains the marker body 52 so that its tip protrudes from the circumferential surface 41 of the rolling element 4. The operation to immerse the tip of the marker body 52 is similar. With this configuration, the marker unit 5 can be made relatively compact compared to the configuration examples shown in Figures 3 and 4.

[0028] As described above, individually operable marker units 5 are assembled at multiple locations along the circumferential direction of the rolling element 4. Preferably, their arrangement is such that the circumference of the rolling element 4 (the central angle around the rotation axis 2) is equally divided into several integer values ​​(2, 3, 4, ...). In the configuration shown in Figure 1, the marker units 5 are positioned at locations that divide the circumference into 2, 3, 4, 5, and 6 equal parts, with the lowest point (6 o'clock) in contact with the construction surface being the zero point. By adopting such arrangement intervals, for example, if the circumference of the rolling element 4 is 600 mm (the diameter of the rolling element 4 is approximately 191 mm), six different fastening pitches of 100 mm, 120 mm, 150 mm, 200 mm, 300 mm, and 600 mm can be arbitrarily selected and marked. Preferably, the side surface 42 of the rolling element 4 displays the numerical value of the fastening pitch corresponding to each marker unit 5. Of course, this arrangement interval can be changed as appropriate depending on construction circumstances.

[0029] The marking interval can be easily changed by allowing the marker body 52 of any selected marker unit 5 to protrude from the circumferential surface 41 of the rolling element 4, and storing the marker body 52 of any unnecessary marker unit 5 in the case 6. Since multiple types of marking intervals can be set with a single rolling element 4 without the need to attach or replace parts, on-site work efficiency is improved. There is no risk of losing parts due to attachment or replacement, and the portability of the tool is also improved, resulting in a significant improvement in work efficiency.

[0030] In the illustrated configuration, as shown in Figure 2, the left and right rolling elements 4, 4 are mounted on the rotating shaft 2 such that the arrangement of each marker unit 5 is aligned with each other (the positions of each marker unit 5 overlap 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 mark two rows simultaneously with the same fastening pitch or to mark two rows simultaneously with different fastening pitches. In order to align the arrangement of the marker units 5 of the left and right rolling elements 4, 4, appropriate engaging means 24 (see Figure 1) or the like may be provided at the interface between the rotating shaft 2 and each rolling element 4, 4 to align the zero-point position of the rolling element 4.

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

[0032] Furthermore, the technical scope of the invention disclosed in this application should not be interpreted restrictively by the exemplary embodiments, but rather conceptually based on the claims. The names of the components used in the claims and specification are for convenience to facilitate a concrete understanding of the invention, and the names do not unnecessarily limit the concept or properties of the components. When implementing the invention disclosed in this application, the detailed shape, dimensions, structure, material, quantity, combination form with other elements, relative positional relationship, etc., of components not specifically identified in the claims may be modified as appropriate, within the scope of using a substantially equivalent operating principle to that of the exemplary embodiment, or within the scope of obtaining substantially equivalent or better effects than those of the exemplary embodiment. [Industrial applicability]

[0033] The pitch marking tool disclosed herein can be widely used not only for marking the positions for fasteners such as screws and nails on the surface of gypsum board, plywood, and other board materials, but also for repeatedly marking appropriate intervals for construction or processing by appropriately selecting a marking means according to the construction or processing surface of various components. [Explanation of symbols]

[0034] 1. Pitch marking tool 2 rotation axes 21 Bearing section 22 Retaining member 23 Spacers 24 Engagement means 3. Handling components 4 Rolling elements 41 Peripheral surface 42 Side view 5 Marker Units 51 Marking means 52 Marker body 53 Engaging projection on the marker body side 531 Tapered surface 532 Erecting surface 54. Biasing member 55 Operation section 551 Neck 56 Engaging protrusion on the marker body side 6 cases 61 one end 62 Top section 63 Engaging protrusions on the case side 631 Tapered surface 632 Drooping surface 64 Bottom part 65 Slot hole 66 Engaging protrusions on the case side

Claims

1. A pitch marking tool comprising a handle member having a rotating shaft at its tip, at least one rolling element rotatably mounted on the rotating shaft, and a plurality of markers mounted on the circumferential surface of the rolling element at predetermined intervals along its circumferential direction, The marker is configured as a marker unit, comprising a marker body having a marking means at its tip, and a case having a storage space for housing the marker body. Multiple 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 storage space of the case such that its tip can extend and retract from one end of the case in the radial direction of the rolling element. An engaging means for temporarily fixing 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. The engagement means comprises an engagement projection formed on the inside of the storage space and on the marker body, respectively, which engages and disengages from each other, and a biasing member that biases and holds the marker body toward the side to which the engagement projection engages. The marker unit is configured such that the tip of any marker unit selected from among the multiple marker units can be individually extended and retracted from the circumferential surface of the rolling element. A pitch marking tool characterized by the following features.

2. In the pitch marking tool described in Claim 1, The marker body is provided with an operating part that serves as a finger grip or pinch for moving the marker body along the radial direction of the rolling element, and is exposed on the side surface of the rolling element. A pitch marking tool characterized by the following features.

3. In the pitch marking tool described in claim 1 or 2, Multiple marker units are positioned to divide the circumference of the rolling element equally into two or more integer values ​​of multiple types. A pitch marking tool characterized by the following features.

4. In the pitch marking tool described in claim 1 or 2, Multiple rolling elements, each having the same diameter, are mounted on the rotating shaft parallel to each other, and the arrangement of each marker unit is aligned with each other. A pitch marking tool characterized by the following features.

Images