Laying angle
The resin-based base angle with protrusions and recesses provides stable and adaptable support for scaffolding bases, addressing placement challenges on varied terrain and facilitating easy installation and adjustment.
Patent Information
- Application Number
- JP2024118765
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2026-02-05
AI Technical Summary
Existing scaffolding bases are difficult to place and support stably at the desired angle, especially in varying terrain conditions.
A resin-based base angle with protrusions and recesses on its upper and lower surfaces, allowing for stable placement and support of scaffolding bases, accommodating different terrain and base sizes, and enabling easy stacking and adjustment.
Enables stable and versatile support of scaffolding bases on flat, stepped, and sloped surfaces, facilitating easy installation and adjustment, while reducing material waste and snagging risks.
Smart Images

Figure 2026017788000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a base angle that is installed at the foot of a work scaffold that is assembled at a construction site or the like. [Background technology]
[0002] BACKGROUND ART Conventionally, there are known base corners on which bases such as jack bases and fixed bases used at the foot of work scaffolding assembled at construction sites and the like are placed. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 08-312130 Summary of the Invention [Problem to be solved by the invention]
[0004] There is a demand for the base used at the foot of scaffolding to be easily and stably placed and supported at the angle at which it is placed.
[0005] An object of the present invention is to provide a base angle that allows the base of a scaffold to be easily placed and supported in a stable state. [Means for solving the problem]
[0006] The base angle of the embodiment is made of a resin material and is a base angle on which the base of a scaffold can be placed, with multiple protrusions on the upper surface at intervals corresponding to the mounting holes formed in the base, and multiple recesses on the lower surface into which the protrusions on the upper surface of the lower base angle can be fitted when multiple base angles are stacked one above the other with their positions shifted in the planar direction. [Effects of the Invention]
[0007] According to the setting angle of this embodiment, the base of the scaffolding can be easily placed and supported in a stable state. [Brief explanation of the drawings]
[0008] [Figure 1] 1A and 1B are diagrams of a base angle of one embodiment, in which (a) is a top view of the base angle and (b) is a bottom view of the base angle. [Figure 2] 1(a) to 1(f) are cross-sectional views taken along lines AA to FF in FIG. 1(b). [Figure 3] 1A and 1B are diagrams of a base angle of one embodiment, in which (a) is a perspective view of the base angle seen from above, and (b) is a perspective view of the base angle seen from below. [Figure 4] FIG. 10 is a diagram illustrating an example of use of the base angle of an embodiment. [Figure 5] FIG. 10 is a diagram illustrating an example of use of the base angle of an embodiment. [Figure 6] FIG. 10 is a diagram illustrating an example of use of the base angle of an embodiment. [Figure 7] FIG. 10 is a diagram showing an example of how the base corner is stored in one embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0009] The embodiment of the angle will be described with reference to the drawings. (Set angle configuration) The base angle 1 of this embodiment is made of, for example, a resin material, and as shown in Figures 1 to 3, is a plate-shaped member that is approximately square in plan view, with multiple protrusions a11 to a33 provided on the upper surface P and multiple recesses b11 to b51 provided on the lower surface Q. Furthermore, the base corner 1 of this embodiment is provided with an inclined surface 12 on the upper surface P of one corner, which is formed obliquely so as to be positioned downward as it goes outward. In addition, the base angle 1 of this embodiment has a through hole 15 that penetrates vertically in the center, and a corner 13 diagonally opposite the one corner where the inclined surface 12 is provided is formed in a curved shape.
[0010] The protrusions a11 to a33 provided on the upper surface P of the base corner 1 of this embodiment are arranged in a dot pattern, and as shown in Figure 1(a), form a first protrusion group a1 arranged in the central region of the upper surface P, a second protrusion group a2 arranged on one side of the first protrusion group a1 on a diagonal line L perpendicular to the diagonal line connecting the inclined surface 12 of the base corner 1 and the corner portion 13, and a third protrusion group a3 arranged on the other side of the diagonal line L.
[0011] The first group of protrusions a1 consists of four protrusions a11 to a14 arranged at the vertices of a square consisting of four sides parallel to the outer periphery of the base corner 1, and each protrusion a11 to a14 is arranged so that the distance s between the protrusions that make up each side is approximately the same as the distance between the mounting holes 21a, 21a formed in the base plate 21 of the scaffolding base 2.
[0012] The second projection group a2 is made up of three projections a21 to a23 arranged in a substantially L-shape. For example, the second protrusion group a2 consists of a corner protrusion a21 that is shifted to one side of the diagonal line L from one protrusion a14 in the first protrusion group a1 that is located on one side of the diagonal line L of the base corner 1, and protrusions a22 and a23 that are located at positions away from the corner protrusion a21 and parallel to the two sides of the base corner 1.
[0013] The second protrusion group a2 has each protrusion a21 to a23 arranged so that the distance s between the corner protrusion a21 and the other protrusions a22 and a23 is approximately the same as the distance between the mounting holes 21a, 21a formed in the base plate 21 of the scaffolding base 2. In addition, the second protrusion group a2 has each protrusion a21 to a23 arranged so that the distance between the protrusion a21 at the corner of the second protrusion group a2 and one of the protrusions a14 in the first protrusion group a1 is approximately the same as the distance between the center of the base corner 1 and one of the protrusions a14 in the first protrusion group a1.
[0014] Similarly, the third protrusion group a3 consists of three protrusions a31 to a33 arranged in an approximately L-shape, and consists of a corner protrusion a31 that is shifted to the other outside of the diagonal line L from one protrusion a12 that is located on the other side of the diagonal line L of the base corner 1 in the first protrusion group a1, and protrusions a32 and a33 that are located at positions spaced apart from the corner protrusion a31 parallel to the two sides of the base corner 1.
[0015] The third protrusion group a3 has each protrusion a31 to a33 arranged so that the distance s between the corner protrusion a31 and the other protrusions a32 and a33 is approximately the same as the distance between the mounting holes 21a, 21a formed in the base plate 21 of the scaffolding base 2. In addition, the third protrusion group a3 has each protrusion a31 to a33 arranged so that the distance between the protrusion a31 at the corner of the third protrusion group a3 and one of the protrusions a12 in the first protrusion group a1 is approximately the same as the distance between the center of the base angle 1 and one of the protrusions a12 in the first protrusion group a1.
[0016] The recesses b11 to b51 provided on the underside Q of the base corner 1 of this embodiment consist of a plurality of dot-shaped recesses b11 to b22 arranged in a dot pattern and a plurality of groove-shaped recesses b31 to b51 arranged in a groove pattern, as shown in Figures 1(b) and 3(b). The multiple dot-shaped recesses b11 to b22 form a first dot-shaped recess group b1 provided in the central region of the lower surface Q of the base corner 1 and a second dot-shaped recess group b2 provided in the outer peripheral region of the lower surface Q of the base corner 1.
[0017] The first dot-shaped recess group b1 consists of four dot-shaped recesses b11 formed below the protrusions a11 to a14 that make up the first protrusion group a1, and four dot-shaped recesses b12 formed at the middle positions of each side of the square formed by the four dot-shaped recesses b11, for a total of eight recesses.
[0018] The dot-shaped recesses b11, b12 constituting the first dot-shaped recess group b1 are formed at intervals and depths that allow the protrusions a11 to a33 provided on the upper surface P of the base corner 1 to fit into them when the base corners 1 are stacked in an aligned manner or when they are stacked with their positions shifted in the planar direction.
[0019] The second dot-shaped recess group b2 is arranged along a square whose diagonal corners are the corner protrusions a21 that make up the second protrusion group a2 and the corner protrusions a31 that make up the third protrusion group a3, and consists of dot-shaped recesses b21 arranged at each vertex of the square and dot-shaped recesses b22, b22, b22 arranged at three equal intervals between the dot-shaped recesses b21, b21 located at each vertex, for a total of sixteen recesses.
[0020] The dot-shaped recesses b21, b22 constituting the second dot-shaped recess group b2 are formed at intervals and depths that allow the protrusions a11 to a33 provided on the upper surface P of the base corner 1 to fit into them when the base corners 1 are stacked in an aligned manner or when they are stacked with their positions shifted in the planar direction.
[0021] The recesses b11 to b22 that make up the first dot-shaped recess group b1 and the second dot-shaped recess group b2 are arranged in 5 rows and 5 columns at equal intervals except for the center, for a total of 24 dot-shaped recesses b11 to b22, and the spacing between the rows and columns is 1 / 2 the spacing s between the protrusions a11 and a12 that make up the first protrusion group a1, i.e., 1 / 2 the spacing between the mounting holes 21a, 21a formed in the base plate 21 of the scaffolding base 2.
[0022] The plurality of groove-like recesses b31 to b51 form first to third groove-like recess groups b3, b4, and b5 arranged in triplicate on the lower surface Q of the base corner 1 from the center toward the outer periphery.
[0023] The first groove-shaped recess group b3 is formed by connecting four groove-shaped recesses b31 formed parallel to each side of the base corner 1 so as to form a roughly # shape in a plan view, and is provided at a position overlapping with the first dot-shaped recess group b1. Note that the first dot-shaped recess group b1 and the first groove-shaped recess group b3 of the base corner 1 do not have to be provided at overlapping positions.
[0024] As shown in Figures 1(a) and 1(b), the four groove-shaped recesses b31 constituting the first groove-shaped recess group b3 have a length dimension T that is longer than the outer-outer distance t between the protrusions a23 of the second protrusion group a2 and the protrusions a33 of the third protrusion group a3, which are located near the inclined surface 12 of the upper surface P of the base corner 1, and have a depth dimension that is shallower than the dot-shaped recesses b11, b12 of the first dot-shaped recess group b1.
[0025] The second groove-shaped recess group b4 is formed by four groove-shaped recesses b41 formed parallel to each side of the base angle 1, which are connected to surround the first groove-shaped recess group b3 so as to form an approximately # shape in a planar view. The four groove-shaped recesses b41 that make up the second groove-shaped recess group b4 have a length dimension that is longer than the outer-outer distance t between the protrusions a23 of the second protrusion group a2 and the protrusions a33 of the third protrusion group a3, which are located near the inclined surface 12 of the upper surface P of the base corner 1, i.e., have the same length dimension T as the recesses b31 of the first groove-shaped recess group b3, and partially overlap with the first groove-shaped recess group b3.
[0026] The groove-shaped recesses b41 that make up the second groove-shaped recess group b4 are deeper than the groove-shaped recesses b31 that make up the first groove-shaped recess group b3, and therefore, as shown in Figures 2(c) and 3(b), the groove-shaped recesses b31 of the first groove-shaped recess group b3 are removed at the overlapping position of the second groove-shaped recess group b4 and the first groove-shaped recess group b3 so that they have approximately the same depth as the groove-shaped recesses b41 of the second groove-shaped recess group b4.
[0027] The third groove-shaped recess group b5 is formed by four groove-shaped recesses b51 formed parallel to each side of the base angle 1, connected to form a square shape in a planar view so as to surround the second groove-shaped recess group b4, and is located at a position overlapping with the second dot-shaped recess group b2. The four groove-shaped recesses b51 constituting the third groove-shaped recess group b5 are formed to a depth shallower than the dot-shaped recesses b21, b22 constituting the second dot-shaped recess group b2.
[0028] In this embodiment, the inclined surface 12 on the top surface P of the base 1 is formed, for example, from a line L2 connecting the dot-shaped recesses b21 provided at one corner of the second dot-shaped recess group b2 to the first recesses b22, b22 provided along each side of the base 1, toward the one corner. Note that the inclined surface 12 of the base 1 may be formed from any position on the top surface P of the base 1 toward the one corner, and is not limited to being formed from the line L2 toward the one corner.
[0029] The inclined surface 12 is formed so that the upper surface P approaches the lower surface Q as it moves from the line L2 connecting the recesses b22, b22 to one corner, and in the inclined surface 12 portion, the dot-shaped recesses b21, b22 formed on the lower surface Q penetrate to the upper surface P. The inclination angle of the inclined surface 12 is not limited, but for example, an inclination angle of about 1 / 10 can be used.
[0030] In the set angle 1 of this embodiment, the recesses b21 and b22 provided in the inclined surface 12 do not have to penetrate the set angle 1. The configuration of the base angle 1 of this embodiment has been described above.
[0031] Next, an example of how to use the base angle 1 of this embodiment will be described. (Example 1: When using on a flat surface) When the base angle 1 of this embodiment is used on a flat surface, as shown in Figures 4(a) and (b), the base plate 21 can be stably supported at the center position of the base angle 1 by inserting the mounting holes 21a provided in the base plate 21 of the base 2 into the first protrusion group a1 provided in the central region of the upper surface P to provide support.
[0032] Furthermore, when the base angle 1 of this embodiment is used on a flat surface, as shown in Figure 4(c), the mounting holes 21a provided on the base plate 21 are inserted into the second protrusion group a2 or the third protrusion group a3 on the upper surface P of the base angle 1 installed on flat ground, etc., to support the base angle 1.This allows the base plate 21 to be stably supported at the corner positions of the base angle 1 even when there is an obstacle such as a wall near the installation position of the base angle 1 and the base plate 21 cannot be supported at the center position of the base angle 1.
[0033] In this embodiment, the base 2 is supported on the upper surface of the base angle 1 by inserting the mounting holes 21a of the base plate 21 into the protrusion groups a1 to a3 provided on the upper surface of the base angle 1.Therefore, as shown in Figure 4(d), even if the base plates 21 are different sizes, such as the jack base 2A and the fixed base 2B, both bases can be stably supported by providing a common mounting hole 21a in the base plate 21.
[0034] (Example 2: When using in a place with steps) The angle 1 of this embodiment can stably support the base 2 even in a place where there is a step due to the presence of an iron plate 5 or the like at the position where the angle 1 is to be installed. Specifically, the angle 1 of this embodiment can be placed alone or stacked to form a base that absorbs steps, as shown in Figure 5(a).By placing the angle 1 between the step (iron plate 5) and the base, the angle 1 can be placed stably in the step portion. The arrangement of the base plate 21 relative to the base angle 1 is the same as in Usage Example 1, so a description thereof will be omitted here.
[0035] In this example of use, when multiple base corners 1,1 are stacked to be used as a base, the multiple base corners 1,1 can be stacked with their sides aligned, that is, stacked one on top of the other without shifting their positions in the planar direction, and the protrusions a11 to a33 on the upper surface P of the lower base corner 1 can be fitted into the dot-shaped recesses b11 to b22 on the lower surface Q of the upper base corner 1.
[0036] The base 2 supporting angle 1 is arranged across the upper surface of the step (iron plate 5) and the upper surface of the base, i.e., when it is stacked upside down with its planar position shifted relative to the base angle 1, the protrusions a11 to a33 on the upper surface P of the base angle 1 are fitted into the dot-shaped recesses b11 to b22 on the lower surface Q of the base angle 1, allowing them to be stacked.
[0037] In this case, as shown in Figures 1 and 5(b), the dot-shaped recesses b11 to b22 on the underside Q of the base 1 are arranged in 5 rows and 5 columns at intervals of 1 / 2 the distance s between the protrusions a11 and a12 constituting the first protrusion group a1, i.e., 1 / 2 the distance s between the protrusions a11 to a33 in the side direction of the base 1.Therefore, as shown in Figures 5(c) and (d), the stacking position of the base and the upper base 1 can be finely adjusted at intervals of s / 2, making it possible to accommodate a variety of stacking situations.
[0038] (Example 3: When used on a slope) The base angle 1 of this embodiment can stably support the base even when used on a slope. Specifically, as shown in Figure 6, the base angle 1 of this embodiment can be positioned in a stable, almost horizontal state by fitting a corner portion with an inclined surface 12 of another base angle 1 between the base angle 1 supporting the base 2 and the slope G. The arrangement of the base plate 21 relative to the angle 1 is the same as in Usage Example 1, so a description thereof will be omitted here.
[0039] At this time, as shown in Figure 6(b), the protrusions a13, a23, and a33 located near the inclined surface 12 on the upper surface P of the wedge-shaped base angle 1 hinder stacking, but since the first groove-shaped recess group b3 to the third groove-shaped recess group b5 are provided on the lower surface Q of the base angle 1, the protrusions a13, a23, and a33 can be diverted into one of the groove-shaped recesses b31, b41, and b51 when stacked as a wedge, allowing the base angle 1 to be stably installed.
[0040] For example, when used on a slope G with a slope of 1 / 8, the protrusions a13, a23, and a33 on the upper surface P of the wedge-forming base angle 1 can be recessed (fitted) into the recess b31 of the first groove-shaped recess group b3, as shown in Figure 6(c); when used on a slope G with a slope of 1 / 10, the protrusions a13, a23, and a33 on the upper surface P of the wedge-forming base angle 1 can be recessed into the recess b41 of the second groove-shaped recess group b4, as shown in Figure 6(d); and when used on a slope G with a slope of 1 / 12, the protrusions a13, a23, and a33 on the upper surface P of the wedge-forming base angle 1 can be recessed into the recess b51 of the third groove-shaped recess group b5, as shown in Figure 6(e), so that the base angle 1 can be installed stably.
[0041] In this example of use, when the upper base angle 1 is shifted in position in a planar direction relative to the lower base angle 1, which forms a wedge, and stacked one on top of the other, the protrusions a13, a23, and a33 on the upper surface of the lower base angle 1 can be fitted into the recesses b31, b41, and b51 on the underside of the upper base angle 1, allowing the base angle 1 on which the base plate 21 is placed to be stably positioned.
[0042] In addition, in the present embodiment, the corner 13 diagonally opposite the corner where the inclined surface 12 is provided is formed in a curved shape, so when the corner 1 is used as a wedge, no corner protrudes from the butt end of the wedge, preventing snagging or injury, and is also effective in reducing material use.
[0043] (Storage example) As shown in Figure 7, the base angle of this embodiment can be easily carried without flapping by aligning multiple base angles 1, 1 and stacking them one on top of the other, fitting the protrusions a11 to a32 on the upper surface P of each base angle 1 into the dot-shaped recesses b11 to b22 on the lower surface Q of the base angle 1 above it, and passing the rod portion 22 of the jack through the central through hole 15.
[0044] (Effect of the angle of this embodiment) As described above, according to the base angle 1 of this embodiment, the upper surface P is provided with a plurality of projection groups a1 to a3 consisting of a plurality of projections a11 to a32 corresponding to the mounting holes 21a formed in the base plate 21, which are shifted in position, for example, in the diagonal direction, so that the base 2 of the scaffolding can be stably supported both in the center and at the corners of the base angle 1.
[0045] Furthermore, according to the base angle 1 of this embodiment, a common mounting hole 21a is provided on the base plate 21 of jack bases and fixed bases of different sizes used at the foot of the scaffolding, and a group of protrusions a1 to a3 corresponding to the mounting holes 21a of the base plate 21 is provided on the upper surface P of the base angle 1, thereby enabling stable support for bases of different sizes without the need for special processing or the use of separate parts.
[0046] Furthermore, according to the base angle 1 of this embodiment, multiple dot-shaped recesses b11 to b22 are provided on the underside Q, and when multiple base angles 1,1 are stacked one above the other without shifting their position in the planar direction, and when multiple base angles 1,1 are stacked one above the other with their position shifted in the planar direction, the protrusions a11 to a32 provided on the upper surface P of the lower base angle 1 can be fitted into the recesses b11 to b22 provided on the underside Q of the upper base angle 1, so that the base angle 1 can be installed in a stable state in a part having a step.
[0047] In addition, according to the base angle 1 of this embodiment, an inclined surface 12 is formed on the upper surface of one corner, which is slanted so that it positions downward as it goes outward.Therefore, when installing the base angle 1 on a slope, the base angles 1 can be stacked as wedges.Furthermore, the protrusions a11 to a32 on the upper surface of the lower base angle 1, which form wedges when stacked, can be fitted into the recesses b31 to b51 on the underside of the upper base angle 1, so the base angle 1 can be installed in a stable state on a slope.
[0048] -Other embodiments- In the above embodiment, the base corner 1 has one corner formed by a curved corner 13, but the curved corner 13 does not necessarily have to be formed.
[0049] Furthermore, the shapes, sizes, intervals, etc. of the protrusions and recesses provided on the upper surface P and / or the lower surface Q of the base corner 1 are not limited to those in the above embodiment. The depth of the first to third groove-shaped recesses b31 to b51 provided on the underside Q of the base angle 1 need only be deep enough to allow the protrusions a11 to a32 to escape when the base angle 1 is used as a wedge using the inclined surface 12, and the first dot-shaped recess and the first groove-shaped recess, and similarly, the third dot-shaped recess and the third groove-shaped recess, do not necessarily have to overlap.
[0050] In addition, the base angle 1 in the above embodiment has an inclined surface 12 formed on the upper surface P of one corner, but the size of the inclined surface 12 is not particularly limited. Furthermore, the base angle 1 may not have an inclined surface 12 on the upper surface P, in which case the base angle 1 may not have the first groove-shaped recess group b3 to the third groove-shaped recess group b5 on the lower surface Q. It goes without saying that the above embodiments do not limit the invention described in the claims, but are treated as examples. [Explanation of symbols]
[0051] 1: base angle, 12: inclined surface, 2: base, 21: base plate, 21a: mounting hole, a11-a33: protrusion, b11-b51: recess
Claims
1. A base angle made of a resin material on which a scaffolding base can be placed, A plurality of protrusions are provided on the top surface at intervals corresponding to the mounting holes formed in the base, A base corner has multiple recesses on its underside into which protrusions on the upper surface of the lower base corner can be fitted when multiple base corners are stacked one above the other with their positions shifted in a planar direction.
2. 2. The angle according to claim 1, which is substantially square in plan view and has an inclined surface formed on the upper surface of one corner, the inclined surface being angled downward as it goes outward.
Citation Information
Patent Citations
Holding planking for scaffolding
JP1996312130A