JP2569886Y2 - Grating mounting fixture - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a mounting and fixing device for a grating, which is widely used for ships, factory passages, floors and the like.

[0002]

2. Description of the Related Art As known in the art, a grating is formed by arranging vertical strips made of flat steel or the like having a rectangular cross section at appropriate intervals and parallel so that the upper and lower surfaces are flush with each other, and having an appropriate shape perpendicular to this. A series of horizontal strips are fixed so that the upper surfaces of the vertical strips and the horizontal strips are on the same plane to form an integral grating, and are placed and laid on a receiving beam for use. Hereinafter, the vertical strip is referred to as a bearing bar.

[0003] Conventional mounting and fixing methods for these gratings include a method of laying in the field by bolt tightening and welding and fixing at the tightened position, and a method using a special mounting and fixing receiver has been known so far. ing.

[0004] In particular, an attempt has been made to provide a receiving device which is suitable for a large-volume installation and fixing system, and which does not require gas, electricity or the like equipment for site installation, and which is also effective in terms of appearance and mounting efficiency. there were. (For example,
See Japanese Utility Model Publication No. 63-7612, which is the applicant of the present invention. )

[0005]

However, when laying on-site using the above-mentioned conventional receiving device, it is generally required that the longitudinal direction of the receiving device be aligned with the bearing bar in the same direction. In some cases, there were restrictions on construction. In other words, there is a problem at the connecting portion between the beams and the like, so that welding and fixing are often used together at those portions.

The present invention has been made in view of the above circumstances, and solves the above-mentioned problems, and also inserts a receiving member (lower member) from the same direction or a perpendicular direction to a bearing bar. It is an object of the present invention to provide a grating mounting / fixing receiver which is capable of (approach) and allows selection of a fitting direction to a bearing bar bottom.

[0007]

In order to achieve the above object, according to the present invention, a lower member which is a component of a grating mounting / fixing receiver is provided with a bolt sliding hole in a longitudinal direction of a body part, and a substantially "U". A cross-sectional shape of a U-shape, a narrow structure in which the nut cannot rotate freely within the cross-section, and an uneven portion vertically raised at one end in the body part longitudinal direction, and each of the uneven portions The concave portion is bent at a right angle from the middle thereof, and a mounting and fixing structure is provided in which the bottom of the bearing bar is fixed between any of the right-angled edges of the concave portion and the convex portion so that a fitting direction can be selected. It is assumed that.

More specifically, the lower member is a substantially T-shaped metal
An uneven portion is provided at the edge of the head of the plate, and bolts are
Sliding holes are provided and opposed in the longitudinal direction around the bolt sliding holes.
Two sides below the body part and one side on the head side above the body part
Each of which is bent into a general L shape when viewed from the front.
The concave and convex portions are formed by bending each concave portion on both sides of the convex portion from the middle thereof in the longitudinal direction of the body portion so as to have a right edge.
The lower member is brought into contact with the lower surface of the receiving beam to be oriented in the same direction or the orthogonal direction with respect to the bearing bar, and the uneven portion is inserted into the arrangement portion of the bearing bar, and the right angle of each concave portion is formed. A bearing bar bottom is fixed between one of the edges and the end face and one face of the projection, and has a mounting and fixing structure capable of selecting a fitting direction.

The upper member, which is another component of the receiving member, is a pressing member, which is a metal plate member that straddles the upper surface of the bearing bar and has a bolt insertion hole for pressing and holding the upper edge thereof. And preferably have a step, but may be a washer having an appropriate peripheral edge, and the shape thereof is not particularly limited. The bolt and nut may have a known shape as long as the bolt leg has a desired length under the neck.

[0010]

The above-mentioned receiving means is used by combining and connecting the above-mentioned members in the mounting and fixing of the grating, and the concave and convex portions of the lower member are moved to the bottom of the bearing bar of the grating placed on the receiving beam. The upper part having a bolt insertion hole is straddled over the upper surface of the bearing bar so as to press and hold the upper edge of the bearing bar. By inserting and screwing and tightening the bolt leg rod screw portion between the nut that is made unrotatable in the approximate U-shaped cross section of the lower member, the grating is fixed to the receiving beam. obtain.

At this time, the lower member is locked to the lower surface of the receiving beam, and the above-mentioned uneven portion is inserted into the portion where the bearing bar is provided, and the bearing bar is inserted between one of the right-angled edges of each concave portion and the end surface and one surface of the convex portion. By positioning the bottom and selecting its mating direction, an approach can be made for mounting and fixing to the bearing bar from either the same direction or orthogonal direction.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of a lower member embodying the present invention, and FIG. 2 is a metal member forming the lower member.
It is a top view of a plate . In the drawings, the plate thickness of the members is not shown.

Here, 1 is a lower member, 2 is a metal plate , 3
Denotes an uneven portion and 4 denotes a bolt sliding hole.

The lower member (FIG. 1)A roughly T-shaped metal plate
bodyIt is formed from [Fig. 2].Metal plate
(2) A bolt sliding hole with a long hole shape in the longitudinal direction of the body part
(4), and having an uneven portion (3) on the edge of the head.
You.

Therefore, three circumferences of the bolt sliding hole (4) are bent along a bending line (FIG. 2) into a substantially "U" -shaped cross-sectional shape, in which the nut is not rotatable. It has a structure that is as narrow as possible, and one end (head) of the member including the uneven portion (3) is vertically raised to form a general L-shape when viewed from the front.

Further, each of the concave portions on both sides of the convex portion is bent in the longitudinal direction of the body portion from the middle thereof to form a right-angled edge. (The effect of the uneven portion will be described later.)

Then, the mounting and fixing structure causes the lower member having the above structure to abut on the lower surface of the receiving beam to be oriented in the same direction or the orthogonal direction with respect to the bearing bar, and to move the uneven portion to the arrangement portion of the bearing bar. The bottom of the bearing bar is fixed between any one of the right-angled edges of the concave portion and the end surface and one surface of the convex portion so that the fitting direction can be selected.

FIG. 3 is an explanatory front view of this mounting state, and FIG.
FIG. 5 is a plan view explanatory view and FIG. 5 is a side view explanatory view. Here, a case where a receiving member (lower member) is engaged with a lower surface of the receiving beam in a lateral direction orthogonal to the bearing bar (7) is shown. ing.

In common to the drawings, 1 is a lower member, 3 is an uneven portion, 4 is a bolt sliding hole, 5 is a bearing, 6 is an upper member, 7 is a bearing bar, 8 is a bolt and 9 is a nut. is there.

In mounting and fixing the grating, first, the lower member (1), the upper member (6), and the bolts and nuts (8, 9) are temporarily fixed. At this time, the length under the neck of the bolt leg rod is set so as to be compatible with the height of the bearing bar and that the mounting operation can be performed, but in many cases, it is prepared in advance when supplying the material.

Next, the receiving member is inserted into the gap of the bearing bar (7) from the upper surface of the grating placed on the receiving beam (5), and the lower member (1) is held by hand while holding the upper member (6). ) The concave and convex portion (3) at the tip is fitted to the bottom of the bearing bar (7), and the lower member (1) body reaching the other end is locked to the lower surface of the receiving beam (5).

Here, the concave / convex portion (3) at the tip of the lower member (1) is formed as a concave portion (3a, 3a) or a convex portion (3b).
, Bearing bars (7, 7) placed on a receiving beam (5)
Although it is configured to be fitted and fixed to the bottom, it has a shape that can be selectively fitted to the bearing bar (7) from either the same direction or the orthogonal direction. Thus, an advantage over the conventional example is obtained.

That is, as shown by a two-dot chain line in FIG. 1, each of the concave portions (3a, 3a) provided on both sides of the convex portion (3b).
a) is bent in the longitudinal direction of the body part from each half thereof to form a right-angled edge. The bending direction may be any of two directions inside and outside along the longitudinal direction of the lower member (1).

The upper member (6) is straddled on the upper surface of the bearing bar (7), and is fastened to the lower member (1) by bolts and nuts (8, 9) so as to press and hold the upper edge thereof. To complete the mounting and fixing of the grating. At the time of this fastening, the nut (9) temporarily fixed earlier works in a rotationally unreliable manner, so that bolting is easy.

As described above, in the connecting portion between the main beam and the cross beam of the grating, there may be a case where the conventional receiving device causes inconvenience, and as shown in the drawing, the present receiving device is attached to the bearing bar (7). The inconvenience of the prior art is eliminated by enabling the fitting and locking from the orthogonal lateral direction.

The bolts and nuts (8, 9) are fastened except that the nut (9) is not allowed to rotate in its cross-section regardless of the direction in which the lower member (1) is locked. If
A known method may be used. FIG. 6 is a schematic cross-sectional view showing a state of mounting in the same mounting direction as the conventional example.

The above embodiment is merely an example representative of the gist, and even if various modified structures and deformation means are devised within the scope of protection of the present invention, they are all included in the present invention.

[0029]

According to the present invention, the unevenness of the lower member can be fitted to the bottom of the grating bearing bar from either the same direction or the orthogonal direction. Therefore, the direction in which the receiving member (lower member) is locked to the lower surface of the receiving beam may be any one of the two directions, and from its convenience, beneficial effects such as improvement of work efficiency in mounting and fixing the grating are provided. Play.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a lower member of a grating mounting and fixing receiver according to an embodiment of the present invention.

FIG. 2 is a plan view of a metal plate forming a lower member.

FIG. 3 is an explanatory front view showing a state in which the grating mounting and fixing receiver of the present invention is mounted.

FIG. 4 is a plan view explanatory view of the same.

FIG. 5 is an explanatory view of the same side view.

FIG. 6 is a schematic cross-sectional view showing a state in which the grating mounting and fixing receiver of the present invention is mounted in the same mounting direction as the conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lower member 2 Metal plate 3 Uneven part 4 Bolt sliding hole 5 Receiving beam 6 Upper member 7 Bearing bar 8 Bolt 9 Nut

Claims (2)

(57) [Scope of request for utility model registration] 1. A lower member which is fitted to the bottom of a grating bearing bar placed on a receiving beam and is locked to the lower surface of the receiving beam, and straddles the upper surface of the bearing bar and presses and holds its upper edge. A bolt for fastening the upper member for bolting and the grating to fix the grating and the receiving beam, wherein the lower member has a bolt sliding hole in the longitudinal direction of the body part and a substantially U-shape. A cross-sectional shape, a narrow structure in which the nut cannot rotate freely in the cross-section, and an uneven portion formed on the edge by vertically rising one end in the longitudinal direction of the body part, and Each of the concave portions of the portion is bent at a right angle from the middle thereof, and a mounting and fixing structure is provided in which a bearing bar bottom portion is fixed between any of the right-angled edges of each concave portion and the convex portion so that a fitting direction can be selected. Grating mounting fixed Bracket as. 2. The head of a metal plate having a substantially T-shaped lower member.
An uneven part is provided at the edge of the part, and a bolt sliding hole is formed in the body part longitudinal direction.
And two opposite sides in the longitudinal direction around the bolt sliding hole are provided.
Fold one side of the head side below the body part and above the body part
The concave and convex portions are formed so as to have a right-angled edge by bending each concave portion on both sides of the convex portion from the middle thereof in the longitudinal direction of the body portion, respectively.
The lower member is brought into contact with the lower surface of the receiving beam to be oriented in the same direction or the orthogonal direction with respect to the bearing bar, and the uneven portion is inserted into the mounting portion of the bearing bar. 2. The grating mounting and fixing receiver according to claim 1, wherein the mounting bar has a mounting and fixing structure in which a bearing bar bottom portion is fixed between any one of the end surface and one surface of the convex portion so that a fitting direction can be selected.