JP2002106055A - Grating fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide constitution for embedding a fixture in a grating without machining a receiving frame for placing the grating or to the circular waterway side, or combining a fixture of independent constitution to fix it to a laying part. SOLUTION: A cutout cavity part 5 is formed in a suitable position along the longitudinal centerline of the narrow grating 1, and a bearer 7 having a bearing for supporting a linear shaft rotatably while restricting thrust motion in a vertical direction is constituted in the position. The upper end of the linear shaft is formed into a screw head so as to be rotatable by a rotating tool, and the lower part is threaded. A rectangular locking plate 15 having a threaded hole at the center, with one piece narrower than the opening width of a circular waterway or the like and with the other piece wider than the opening width is screwed to the threaded part of the linear shaft. A stopper for limiting the turning of the locking plate is hangingly inserted in the lower part of the bearer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention fixes a narrow grating laid in a circular waterway or the like to a laid portion to prevent the grating from deviating due to an impact when passing through a vehicle, and
The present invention relates to a configuration of a fixture for preventing generation of noise and the like.

[0002]

2. Description of the Related Art Conventionally, there has been a configuration in which a bolt or the like is used as a fixing tool and a mounting portion of a target grating is directly tightened and fixed.

[0003]

SUMMARY OF THE INVENTION The main object of the present invention is to integrate a fixture into a grating without any processing on a receiving frame on which the grating is to be placed or on a circular channel side, or to provide an independent fixture. It is a technical problem to be solved to provide a configuration in which a fixing tool having the above-described configuration is combined and fixed to a laid portion.

[0004]

A technical means for solving the above-mentioned problem is to form a notch gap at an appropriate position along a longitudinal center line of a narrow grating, and to vertically form a notch at the position. A bearing having a bearing for rotatably supporting a linear shaft in a direction to limit the thrust motion, the linear shaft being rotatable with a rotary tool having an upper end as a screw head, a lower portion as a screw, One piece is narrower than the opening width of a circular waterway or the like, the other piece is wider than the opening width, and is screwed with a rectangular locking plate having a screw hole in the center. A stopper for restricting the rotation of the locking plate is hung down and implanted, and the pedestal is separately formed as the same part, and is detachably attached to the upper edge of the notch space of the grating. Integrated with holder to be hung and stopper
And the linear shaft is inserted through the support base, and a locking plate is screwed into the linear shaft.

[0005]

With the above construction, the longitudinal direction of the locking plate of the fixture integrated with or combined with the grating is
When placed on the receiving frame while setting it along with the channel direction of the circular channel to be placed, the locking plate dives through the narrow opening of the circular channel, and in this state, when the screw head at the upper end of the linear shaft is rotated with a rotating tool, At first, the locking plate co-rotates with the linear shaft due to friction. Then, when the rotation is stopped at approximately 90 degrees due to the stopper formed on the pedestal, screwing of the screw starts and the locking plate starts to rise. The long end surface of the locking plate abuts on the lower part of the circular channel or the opening of the grating, so that the grating is in a fixed state. When releasing, the opposite operation is performed. What should be done.

[0006]

An embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a grating having a bearing bar-2, a crossbar-3, and an end bar-4 as main members, and reference numeral 5 denotes a part of a substantially central portion of the bearing bar-2, and an auxiliary member. 6 is a notch space formed by 6; 7 is a pedestal on which the crossbar 3 forming one surface of the notch space 5 is mounted as a seat; 8 is a through hole formed in the pedestal 7; 7 shows a stopper which is suspended and implanted at the lower part of 7, and 10 is a linear shaft which is inserted through the through hole 8, stops the thrust movement by a stop ring 12 by a groove 11, and is rotatably supported. The upper end of the linear shaft 10 is a screw head, and the lower portion is a screw 14. The locking plate 15 is screwed to the screw 14, and has a narrow opening 16 in FIG. Circular waterway 1
7, the linear shaft 10 is rotated in the direction of the arrow, and the locking plate 15 is pulled upward to abut the lower surface of the opening 16 to show the fixed state of the grating 1. FIG. 3 shows a separate structure independent of the grating 1 from the pedestal 7 to the locking plate 15 in FIG. 1. Reference numeral 18 denotes a crossbar 3 which forms one surface of the cutout space 5 without the pedestal 7. 2 has a hook 20 which can be attached to and detached from the upper edge portion 19, 21 is a pedestal integrally formed with the holder 18, and 22 is a stopper, which is the same as FIG. The linear shaft 10 and the locking plate 15 are assembled.

[0007]

As described above, according to the present invention, in a configuration having a narrow opening like a circular waterway and a concave notch on both sides of the lower surface of the opening, the hand except for the grating to be placed is completely hand-operated. It can provide a fixing structure of the grating without inserting a mark, and is a simple structure and strong, especially when a separate structure is used, in a basic grating outer shape,
It does not protrude to the outside, is very useful for transportation work, and in combination of grating and fixture,
When one piece is used, it is attached in the center in principle. However, the corresponding notch space is made to be one end face in the longitudinal direction of the grating, and the cross bar of the adjacent grating is set to one. By holding down with the hooks of the individual fixtures, in the case of continuous laying (mostly in this mode), the effect is the same as the use of two per sheet, thereby providing a highly economically effective configuration. In the embodiment, the structure of the grating is such that the bearing bar, the crossbar, and the end bar are the main members. However, other structures such as that the main body of the grating is a punching metal. It is what adapts.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional perspective view showing a state in which a fixture embodying the present invention is being assembled into a grating.

FIG. 2 is a partial cross-sectional perspective view showing a completed construction of FIG.

FIG. 3 is a perspective view showing the fixing device of FIG. 1 as a separate structure from grating.

[Explanation of symbols]

 1, grating 12, stop ring 2, bearing bar 15, locking plate 3, cross bar 17, circular water channel 4, end bar 18, holder 5, notched void 20, 20, hook 7, pedestal 21 , Pedestal 8, through hole 22, stopper-9 stopper-10, linear shaft

Claims (2)

[Claims] 1. A narrow grating laid in a circular waterway or the like is cut out at an appropriate position along a center line in the longitudinal direction to form a gap, and an enlarged portion below an opening for mounting the grating is provided. A thrust motion is restrained by a linear shaft in a vertical direction below the position so as to be locked to the portion, and a support base having a bearing for rotatably supporting the linear shaft is configured. It is rotatable, the lower part is a screw, and the screw part is screwed with a rectangular locking plate having one part narrower than the opening part width, the other part wider than the opening part width, and having a screw hole in the center. And a stopper for restricting the rotation of the locking plate at a lower portion of the support base. 2. A pedestal having a bearing for vertically supporting a thrust movement of a linear shaft and rotatably supporting the pedestal, wherein the pedestal is formed separately from a grating body, and the grating is formed. The linear shaft is configured integrally with a holder that is detachably hooked to the upper edge of the notch of the notch. The linear shaft is rotatable with a rotary tool with the upper end being a screw head or the like, and the lower portion is a screw.
One piece is narrower than the width of the opening, the other piece is wider than the width of the opening, and a rectangular locking plate having a screw hole in the center is screwed into the locking plate. 2. The grating fixing device according to claim 1, further comprising a stopper for restricting turning.