JP3463205B2 - Fine grating handle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle for lifting a fine grating.

[0002]

2. Description of the Related Art Gratings provided to cover gutters of roads are lifted and removed before the start of work when cleaning or maintaining the gutters, and returned to the original covering state after the end of work. . With ordinary gratings with wide spacing between bearing bars, the human hand can be easily inserted into the gap between the bearing bars, so that they can be easily lifted by human power or by using some kind of tool. , Moved. However, in the fine grating, the space between the bearing bars is small, and a human hand cannot be inserted into the space. Therefore, a handle for fine grating is separately prepared as an accessory. Further, in the fine grating, processing for mounting the fine grating handle is applied to the bearing bar.

[0003]

Since the conventional fine-grating handle has the above-mentioned structure, it has the following problems. That is, when delivering the fine grating, the fine grating handle must always be attached separately. In addition, fine processing requires additional processing on the bearing bar. Further, regarding the existing fine grating, in order to use the handle for fine grating, it is necessary to perform additional processing on the bearing bar.

The present invention has been made in order to solve the above-mentioned problems, and it is not necessary to additionally process the bearing bar without separately preparing an accessory, and therefore, the existing details can be obtained. It is an object of the present invention to provide a handle for fine grating, which can be easily applied to grating.

[0005]

In order to achieve the above object, the handle for fine grating according to the present invention is constructed as follows. That is, a substantially U-shaped fixing member that covers two adjacent bearing bars of the fine grating and a bolt that holds the fixing member on the lower side of the bearing bar is rotatably supported and rotatable between the bearing bars. Approximately U that can always be stored below the surface of the bearing bar
And a handle member having a character shape.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the handle for fine grating according to the present invention will be described in detail below with reference to the drawings. 1 is a front view showing an installed state of a handle for fine grating according to the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a plan view showing a washer.

In the figure, reference numeral 1 is a fine grating handle, and the fine grating handle 1 is a substantially U-shaped fixing member 2, a rectangular washer 3 having two through holes, and a substantially square washer 3. U-shaped handle member 4, one set of bolts 5
And a nut 6.

The fixing member 2 has an intermediate side portion 2a and an end side portion 2b provided at both ends thereof in a state of being bent at a right angle.
Is a plate-shaped member configured by and the intermediate side portion 2a has two adjacent bearing bars 1 of the fine grating 10.
It covers over 1, and the two edge parts 2b project downward beyond the height of the bearing bar 11 of the fine grating 10. Notches 2c for engaging with the crossbar 12 of the fine grating 10 are provided at the bases of the two end sides 2b, that is, at the positions bent from both ends of the intermediate side 2a. . Further, through holes 2d are provided at a plurality of positions (three positions in the figure) at predetermined positions in the length direction on the two end portions 2b.

The washer 3 is provided with a through hole 3a having substantially the same diameter as the through hole 2d provided in the second end portion 2b. In addition, if necessary, for a pair of opposite sides of the rectangle,
As shown in FIG. 3, the position of the through hole 3a is biased to one side,
A difference of the distance α is provided.

The handle member 4 is a fine grating 10
Is a plate-shaped member that can be easily inserted between two adjacent bearing bars 11, and one side of the substantially U-shape has a through hole from the base of the end side 2b of the fixing member 2 to the through-hole. 2d
Through holes 4a having the same diameter are provided at a plurality of locations (three locations in the figure) at positions equidistant to or slightly shorter than the distance to. A handle hole 4b for inserting a hand (a plurality of fingers) is provided on the other side of the substantially U shape. Further, a protruding portion 4c is provided in the U-shaped outward direction at the tip of one side, and a notch 4d is provided on the U-shaped tip side of the protruding portion 4c, and the inside of the U-shape is cut off obliquely. The cut surface 4e is formed.

The bolt 5 and the nut 6 are selected to have a shape sufficient to be inserted and fixed in the through holes 2d of the two end portions 2b of the fixing member 2.

The fine grating handle 1 constituted by the above-mentioned members is installed along the center crossbar 12 of the fine grating 10 near both ends thereof. That is, first, the fixing member 2 is inserted so as to cover the adjacent bearing bar 11 from the upper surface of the fine grating 10 and the notch 2 c is locked to the cross bar 12.
Next, for the through hole 2d (second in the figure) close to the lower surface of the fixing member 2 protruding to the lower surface of the fine grating 10,
The washers 3 are arranged on both sides of the corresponding (second in the figure) through hole 4a of the handle member 4 and inserted between the two edge portions 2b, and the through holes 2d, 3a of the respective members 2, 3, 4 are inserted. A bolt 5 is inserted through 4a and fixed with a nut 6.

In the fine grating handle 1 thus installed on the fine grating 10, the fixing member 2 includes the bearing bar 11 of the fine grating 10 by the intermediate side portion 2a and the washer 3, as shown by the solid line in FIG. Is sandwiched between the upper surface side and the lower surface side, and lateral movement is restricted by the engagement state of the cutout portion 2c and the crossbar 12, and the fixed portion is fixed to the fine grating 10. The handle member 4 has a through hole 4
Due to the eccentric load of its own weight with the bolt 5 inserted in a as the fulcrum of rotation, the U-shape opens in the upper surface direction, and the tip surface of one side is on the inner surface of the intermediate side portion 2a of the fixing member 2, or The cut surface 4e on the inner side of the character comes into contact with the crossbar 12 of the fine grating 10 and stops in a state of being below the upper surface of the fine grating 10. That is, in this way, the fine grating 10 is installed and used in a state where the handle member 4 is below the upper surface of the fine grating 10.

Next, when the fine grating 10 is lifted and moved, the notch 4d provided in the protruding portion 4c of the handle member 4 is slanted downward from the upper surface side of the fine grating 10 with a thin rod-shaped member (for example, a pencil). Push in the direction. As a result, the handle member 4 rotates counterclockwise in FIG. 1 with the bolt 5 as a fulcrum, and the tip of the other side of the handle member 4 where the handle hole 4b is provided is projected from the upper surface of the fine grating 10. By further pulling out the other side of the protruding handle member 4 manually, the handle member 4 is pulled out to the state shown by the chain line in FIG. In this state, a hand (a plurality of fingers) is hung on the handle hole 4b, and the fine grating 10 is lifted and moved. When the fine grating 10 is returned to the original position and returned to the use state, the handle member 4 is changed from the state shown by the chain line in FIG.
It can be easily rotated clockwise by hand and the bearing bar 1
It is within the condition shown by the solid line between 1 and 2.

In the fine grating 10, the heights of the upper surface and the lower surface of the bearing bar 11 are standardized into a plurality of types. Three through-holes 2d provided in the two end portions 2b of the fixing member 2 and three through-holes 4a provided in the handle member 4 are provided in accordance with the heights of the bearing bar 11 of a plurality of types. And a pair of fine-grating handles 1
Thus, it can be installed on the fine gratings 10 having a plurality of heights.

Further, the fine grating 10 is a plane type in which the upper end surface of the bearing bar 11 is flat.
With the uneven wart type that improves the anti-slip effect,
There is. Compared to the plain type, the wartless type is configured such that the height of the bearing bar 11 is larger as the height α of the convex portion (currently 2 mm). Therefore, by providing a difference of α in the distance from the through hole 3a of the washer 3 to the pair of opposite sides, it is possible to change the use direction of one type of washer 3 and to apply it to both the plain type and the wart type. Become.

[0017]

EXAMPLES Currently, the fine grating 10 has a height of 19 mm, 25 mm between the upper surface and the lower surface of the bearing bar 11,
It is standardized into 5 types of 32 mm, 38 mm and 44 mm. There are five types of heights of the bearing bar 11 such as a plain type and a wart type. For these 10 heights, see Figure 1.
2d through holes 2d of the fixing member 2 and the handle member 4 shown in FIG.
The position of the through hole 4a is h1 = 28 mm, h2 = 41 m
m, h3 = 53 mm, washer 3 w = 6 mm, w + α
= 8 mm, w = 12 mm, w + α = 14 mm, 2
We respond by preparing types. Correspondence to each fine grating 10 is as follows. Type of fine grating 10 h of washer 3 Washer 3 19 mm plain type h1 = 28 mm w + α = 8 mm 19 mm wart warb type h1 = 28 mm w = 6 mm 25 mm plain type h2 = 41 mm w + α = 14 mm 25 mm wart warb type h2 = 41 mm w = 12 mm 32 mm plain Type h2 = 41mm w + α = 8mm 32mm wart warb type h2 = 41mm w = 6mm 38mm plain type h3 = 53mm w + α = 14mm 38mm wart warb type h3 = 53mm w = 12mm 44mm plain type h3 = 53mm w + α = 8mm 44mm warh warb type = 6 mm

[0018]

The handle for fine grating according to the present invention is configured as described above, so that the following effects can be obtained. That is, a substantially U-shaped fixing member that covers two adjacent bearing bars of the fine grating and a bolt that holds the fixing member on the lower side of the bearing bar is supported so as to be rotatable between the bearing bars and always. It can be easily installed without any additional processing on the conventional fine grating by using a substantially U-shaped handle member that can be stored below the surface of the bearing bar, and as an accessory. There is no need to prepare separately. Further, the existing fine grating does not require any additional processing and can be easily installed.

Further, by constructing the washers so that the distance from the through hole is different on one pair of opposite sides,
For the same standard bearing bar, one type of washer can be used for both plain type and wart type.

Further, since a plurality of sets of through holes are provided in the lengthwise direction at the two end sides of the fixing member, one type of bearing bar of a plurality of standards having different bearing bar heights is provided. It can be applied with the fine-grating handle.

[Brief description of drawings]

FIG. 1 is a front view showing an installed state of a handle for fine grating according to the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a plan view showing a washer.

[Explanation of symbols]

1 Fine grating 2 fixing members 2a Middle edge 2b edge 2d through hole 3 washers 3a through hole 4 Handle member 4a through hole 4b Handle hole 4d cutout 5 Volts 6 nuts 10 Fine grating 11 Bearing bar 12 crossbar

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Claims (3)

(57) [Claims] 1. Two bearing bars (1) in which the intermediate side portion (2a) is provided with fine gratings (10) by the intermediate side portion (2a) and the end side portions (2b) provided at both ends thereof.
1) is a substantially U-shape that covers over, and a cutout portion (2c) that engages with the crossbar (12) is provided at the base of the two edge portions (2b), and the two end portions are provided. The through hole (2
d) provided with a fixing member (2) and two through holes (3
a) A rectangular washer (3) provided with a substantially U-shape, and a through-hole (from the tip of one side of the U-shape to the base of the end side (2b) of the fixing member (2)). The grip member (4) provided with the through hole (4a) at a position equal to or slightly shorter than the distance to 2d), and the washer (3) arranged on both sides of the grip member (4) and fixed. Bolts (5) that are inserted between the two edge portions (2b) of the member (2) and are inserted through the through holes (2d, 3a, 4a) of each member (2, 3, 4); A fine grating handle comprising a nut (6) for fixing a bolt (5). 2. A pair of opposite sides of the washer (3),
The handle for fine grating according to claim 1, wherein the distance from the through hole (3a) is different. 3. A plurality of sets of through-holes (2d) in the lengthwise direction at two edge portions (2b) of the fixing member (2).
The handle for fine grating according to claim 1, wherein the handle is provided.