Free Washer

Abstract

To provide a minimum free washer which closes a hole of a lighting fixture by enlarging the hole for a fully threaded bolt, no matter where the fully threaded bolt passes through the hole. [Solution] The shape of the swivel washer 1 is a rectangle, and one hole 2 for a fully threaded bolt is drilled at a position offset from the center. The vertical and horizontal lengths of this washer and the position of the hole for the fully threaded bolt are determined by first drilling one hole for a fully threaded bolt at the center of a plate of any size, aligning the center of the hole of the enlarged lighting fixture, and using this state as the plate reference. Based on this plate reference, the vertical and horizontal are vertical and horizontal lines. The vertical length 3 and horizontal length 4 of this washer are the sum of the vertical line above and below the plate reference, and the horizontal length of this washer is the sum of the right and left sides of the horizontal line. Furthermore, the position of the hole for the fully threaded bolt is a position that is inevitably determined when the vertical and horizontal lengths are determined.

Description

[Technical field]

[0001] Among the various methods of mounting lighting fixtures, this invention is a method for hanging and mounting them using a fully threaded bolt. When a lighting fixture is hung and attached with a threaded bolt, the mounting hole for the threaded bolt of the lighting fixture is small, so the hole is enlarged to make it easier for the threaded bolt to pass through. This invention relates to a washer that closes the enlarged hole. [Background technology]

[0002] The lighting fixture has several mounting holes for threaded bolts. However, because the holes are small, when passing the threaded bolts protruding from the ceiling through the mounting holes of the lighting fixture, the position of the threaded bolts can shift, making installation difficult. Summary of the Invention [Problem to be solved by the invention]

[0003] This causes the following problems: To install a lighting fixture, first attach two threaded bolts to the ceiling frame, etc., and hang it down. Then attach the lighting fixture to the suspended threaded bolts. After passing the threaded bolt through the mounting hole of the lighting fixture, put a washer on it and secure it with a nut to complete the installation. When installing a fully threaded bolt, the bolt is attached to the ceiling frame etc. in accordance with the position of the mounting hole of the lighting fixture's fully threaded bolt and then hung, but misalignment or bending can occur depending on the site conditions. Also, when attaching the ceiling material, holes are drilled in the ceiling material in advance to match the position of the protruding fully threaded bolt, and the ceiling material is then attached. However, even in this case, the position of the protruding fully threaded bolt can become misaligned. [Means for solving the problem]

[0004] 1. Enlarge the mounting hole for the fully threaded bolt on the lighting fixture. However, the size of the hole in the lighting fixture is uncertain depending on the shape of the lighting fixture, but it is large enough for a fully threaded bolt to pass through with sufficient clearance. 2. A special washer is required to cover the enlarged hole made in step 1. This invention relates to the washer described in 2. above, and to the minimum dimensions of a washer that can close any large hole in the lighting fixture described in 1. above for a fully threaded bolt installation hole. Furthermore, the washer needs to close the large hole in the lighting fixture described in 1. above, no matter where the fully threaded bolt passes through. The shape of this washer is a square, and one hole for a threaded bolt is drilled at a position offset from the center. The vertical and horizontal lengths of this washer and the position of the hole for a threaded bolt are described below. First, drill one hole for a threaded bolt at the center of a plate of any size. Next, align the center of the hole for a threaded bolt drilled in the plate (hereinafter referred to as the plate hole) with the center of the enlarged lighting fixture's threaded bolt mounting hole (hereinafter referred to as the fixture hole). This state is then the plate reference. The vertical and horizontal lines are vertical and horizontal based on the center of the plate reference. Initially, the vertical length of this washer is the upward length from the plate reference at the point where the fixture hole's upper tangent line touches the vertical line. Furthermore, when the plate hole is moved upward from the plate reference and inscribed in the fixture hole, the downward tangent line of the fixture hole is the downward length from the inscribed plate hole. Therefore, the vertical length of this washer is the sum of the above-mentioned length in the upward direction and the above-mentioned length in the downward direction. Next, the horizontal length of this washer is the length to the right from the plate reference of the tangent point of the tool hole to the right of the horizontal line. Furthermore, from the plate reference, when the plate hole is moved to the right of the horizontal line and inscribed in the tool hole, the tangent point of the tool hole to the left is the length to the left from the inscribed plate hole. Therefore, the horizontal length of this washer is the sum of the length in the right direction and the length in the left direction. The above are the length and width of this washer. Furthermore, the position of the hole in this washer is inevitably determined when the length and width are determined. This washer was calculated using the above method, and the characteristic of this washer is that it is the smallest washer that can close a hole in the equipment, regardless of the position through which a fully threaded bolt passes. Effect of the Invention

[0005] By enlarging the mounting holes for the full-thread bolts of lighting fixtures, it becomes easier to install the lighting fixtures and to adjust the alignment and inclination of the lighting fixtures afterwards. In particular, when installing the lighting fixtures, the use of this washer makes it possible to close the hole of the full-thread bolt that passes through the lighting fixture, regardless of the position it passes through, making the installation work easier and shortening the installation time. [Brief description of the drawings]

[0006] [Figure 1] Free washer diagram [Diagram 2] Implementation diagram [Diagram 3] Plate reference diagram and vertical and horizontal dimension diagram [Figure 4] Corresponding diagram when a fully threaded bolt passes through DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] The following is a description of an embodiment of the present invention. The shape of the washer (1) is square, and there is one hole (2) for a fully threaded bolt at a position offset from the center. The length (3) and width (4) of the washer (1) and the position of the hole (2) for a fully threaded bolt are described below. First, drill a hole (2) for a fully threaded bolt in the center of a board (10) of any size. Next, align the center of the enlarged hole (5) for the lighting fixture (hereafter referred to as the fixture hole) with the center of the hole (2) for the full-thread bolt (hereafter referred to as the plate hole) drilled in the plate (10). This state is called the plate reference (9). Based on the center of the plate datum (9), the vertical and horizontal are vertical line (11) and horizontal line (12). First, the vertical (3) length of this washer (1) is the length in the upward direction (13) from the plate datum (9) of the contact point of the fixture hole (5) above the vertical line (11) from the plate datum (9). Furthermore, when the plate hole is moved upward of the vertical line (11) from the plate datum (9) and inscribed in the fixture hole (5), the contact point of the fixture hole (5) below is the length in the downward direction (14) from the inscribed plate hole. Therefore, the vertical length (3) is the sum of the length in the upward direction (13) and the length in the downward direction (14). Next, the horizontal (4) length of this washer (1) is the length to the right (15) from the plate reference (9) at the point of contact of the tool hole (5) to the right of the horizontal line (12).Furthermore, from the plate reference (9), when the plate hole is moved to the right of the horizontal line (12) and inscribed in the tool hole (5), the point of contact of the tool hole (5) to the left is the length to the left (16) from the inscribed plate hole. Therefore, the length of the width (4) is the sum of the length in the right direction (15) and the length in the left direction (16). The above are the vertical (3) and horizontal (4) lengths of the washer (1). Furthermore, the position of the hole (2) of the washer is necessarily determined when the vertical (3) and horizontal (4) lengths are determined. The dimensions of this washer (1) were calculated using the above method, and the feature of this washer (1) is that it is the smallest washer that can close the hole (5) of the equipment, no matter where the fully threaded bolt (6) passes through the hole. To use this washer (1), insert the washer (1) into the fully threaded bolt (6) that has passed through the hole (5) of the fixture, then attach the nut (7) to complete the installation of the lighting fixture (8). At this time, depending on how well the washer (1) has been inserted, if the hole (5) of the fixture is not blocked, rotating the washer (1) will close it. Furthermore, depending on the hole (5) of the fixture, the alignment and inclination of the lighting fixture (8) can be adjusted by moving the entire lighting fixture (8). [Explanation of symbols]

[0008] 1. Free-standing washer 2. Holes for fully threaded bolts 3. Vertical 4. Horizontal 5. Lighting fixture holes 6. Fully threaded bolts 7. Nut 8. Lighting fixture body 9. Board Reference Diagram 10. Board 11. Vertical Lines 12. Horizontal Line 13. Top view 14.Downward view 15. Right view 16. Left view

Claims

1. Enlarge the mounting hole for the fully threaded bolt on the lighting fixture.

2. This washer is square in shape and has one hole for a threaded bolt drilled in a position offset from the center. The vertical and horizontal lengths of this washer, and the position of the hole for the threaded bolt are described below. First, one hole for a threaded bolt is drilled in the center of a plate of any size. Next, the center of the hole for the threaded bolt drilled in the plate (hereinafter referred to as the plate hole) is aligned with the center of the threaded bolt mounting hole of the enlarged lighting fixture (hereinafter referred to as the fixture hole). This state is then used as the plate reference, and the vertical and horizontal lines are taken as vertical and horizontal lines based on the center of this plate reference. Initially, the vertical length of this washer is the upward length from the plate reference at the point where the fixture hole contacts the vertical line above the plate reference. When the plate hole is further moved upward on the vertical line from the plate reference and inscribed in the fixture hole, the downward point of the fixture hole contacts the inscribed hole in the plate. Therefore, the vertical length of this washer is the sum of the upward length and the downward length.Next, the horizontal length of this washer is the length to the right from the plate reference, from the point of contact of the fixture hole to the right of the horizontal line. Furthermore, based on the plate reference, when the hole in the plate is moved to the right of the horizontal line and inscribed in the hole in the fixture, the point of contact of the hole in the fixture to the left is the length to the left from the inscribed hole in the plate, therefore the horizontal length of this washer is the sum of the length to the right and the length to the left. These are the vertical and horizontal lengths of this washer, and furthermore, the position of the hole in this washer is inevitably determined when the vertical and horizontal lengths are determined. This washer was calculated using the above method, and the characteristic of this washer is that it is the smallest washer that will cover the hole in the fixture, regardless of the position at which a fully threaded bolt passes through it.

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