JP2532645Y2 - Bracket for grating receiving frame - Google Patents

Description

[Detailed description of the invention]

[0001]

Industrial Applicability The present invention is intended to cover gratings which become lids of gutters, crossing gutters, water collecting basins and the like (hereinafter collectively referred to as gutters) provided on roads, factories, kitchen floors, etc. The present invention relates to a bracket for a receiving frame supported by an edge.

[0002]

2. Description of the Related Art As a lid for a groove provided on a road, a factory, a kitchen floor, or the like, a person, a vehicle, a cart carrying articles, etc., can pass therethrough, and the purpose of draining rainwater and washing water is as follows. Steel gratings in which a grid-like bar is assembled in a rectangular frame are widely used. In order to prevent the grating from dropping into the groove and to keep the grating in a stable state, an angle material (L-shaped steel) is generally provided on both side edges of the groove using the grating.
The receiving frame consisting of is attached.

[0003] Such mounting means of the receiving frame is such that when the groove is constructed, the receiving frame is held on an auxiliary crossbar or the like which is interposed between the concrete forms, or an anchor attached to the receiving frame is welded to a reinforcing bar. In this state, a method of casting concrete in the formwork to integrally fix the receiving frame to the concrete and fixing the same is common.
Due to a change in position due to a later external force or a concrete casting pressure, a step is formed between the left and right receiving frames, or construction failure such as one of the receiving frames is inclined is likely to occur. For this reason, in recent years, a construction method has been introduced in which a bracket is attached to a concrete formwork, concrete is poured on the bracket while holding the angle material of the grating receiving frame, and the bracket is embedded in the concrete. doing.

A vertical piece is formed at the front end of a horizontal receiving portion on which the angle member of the receiving frame is placed, and a positioning piece is formed at the rear end by bending a single metal plate. It consists of a pair of left and right supporting leg pieces, and the vertical piece nailed to the formwork is broken off after solidification of concrete during construction (Japanese Utility Model Publication No. 61-9080). A mounting plate having a substantially L-shape with a mounting piece, and a bracket body in which the support leg piece and the positioning piece are integrated with a horizontal receiving portion, and a vertical piece of the mounting plate is fixed to a vertical surface of the concrete formwork. At the same time, by inserting the insertion piece into a fitting portion provided on the lower surface side of the horizontal receiving portion of the bracket main body, the bracket main body is held by the mold, and the angle material of the receiving frame is placed on the horizontal receiving portion. Put on The formwork after concrete solidification those so removed integrally with the mounting plate (Utility Model 63-
No. 15417).

[0005]

However, the angle members of the grating receiving frame have various standard dimensions, and the width of the horizontal pieces arranged in the horizontal receiving portion of the bracket is different. It is necessary to prepare multiple types of brackets whose spacing between the piece and the positioning piece corresponds to each of the above-mentioned standard dimensions, and to use different brackets according to the size of the angle material to be used. The cost is extremely high, and it takes time for the installer to select the brackets.Moreover, in order to be ready for the construction work, multiple types of brackets must be provided at all times. There was a problem of taking.

In view of the above situation, the present invention can be used as a bracket for a grating receiving frame, which can be used for angle members having different standard dimensions, and is structurally simple and easy to operate. It is intended to provide what can be significantly reduced.

[0007]

In order to achieve the above-mentioned object, a bracket for a grating receiving frame according to the first aspect of the present invention comprises a concrete frame 12 at a front end of a horizontal receiving portion 1.
Is provided, and the horizontal receiving portion 1 is provided.
A bracket body 10 having supporting legs 3 and 3 for lower portions thereof abutting on the surface of the mold frame 12 on both left and right sides thereof, and an angle member 13 of a grating receiving frame placed on the horizontal receiving portion 1. A slide frame 11 having a positioning piece 4 to be brought into contact with the rear end is formed with rack-shaped stop portions 5 and 5 along the front-rear direction on both left and right sides of the horizontal receiving portion 1 of the bracket body 10. At the same time, the slide frame 11 is configured to be fitted over the horizontal receiving portion 1 such that the slide frame 11 cannot be retracted and is forcibly moved forward by engagement with the retaining portions 5 and 5.

According to a second aspect of the present invention, in the bracket for the grating receiving frame of the first aspect, the stop portions 5, 5 are formed on the rear side of the horizontal receiving portion 1, and the slide frame 11 is formed by the slide frame. The structure adopts a structure that can be separated upward from the horizontal receiving portion 1 on the front side of the horizontal receiving portion 1 beyond the female portions 5 and 5.

[0009]

In order to mount the grating receiving frame by using the bracket of the present invention, the vertical piece 2 of the bracket body 10 is fixed to the concrete form 12 by nailing or the like in the same manner as the above-mentioned construction using the conventional bracket. The bracket body 10 is supported by the formwork 12 by fixing the bracket body 10 to the vertical surface of the bracket, and the angle material 13 of the grating receiving frame is placed on the horizontal receiving portion 1. Concrete 14 is cast. In this bracket, a positioning piece 4 is provided on the slide frame 11 to be in contact with the rear end of the angle member 13 placed on the horizontal receiving portion 1, and the slide frame 11 is moved on the horizontal receiving portion 1. By doing so, the distance between the vertical piece 2 and the positioning piece 4 can be freely set according to the width of the horizontal piece 13a of the angle material 13 to be used, so that the angle material 13 having different standard dimensions can be shared without any trouble. Further, since the slide frame 11 is irreversibly straddled with the horizontal receiving portion 1 by engagement with the retaining portions 5, 5, there is a possibility that the set position on the horizontal receiving portion 1 is shifted. Absent.

Further, stop portions 5, 5 are formed at the rear side of the horizontal receiving portion 1, and the slide frame 11 is provided at the front side of the horizontal receiving portion 1 beyond the stop portions 5, 5, If the structure is such that the slide frame 11 can be detached upward from the receiving portion 1, the sliding frame 11 is straddled from behind and moved to a predetermined position, and when the slide frame 11 erroneously goes too far ahead of the predetermined position,
If the slide frame 11 is moved to the front of the horizontal receiving portion 1 beyond the stop portions 5 and 5, the slide frame 11 can be detached upward.
The position can be set by detaching from the bracket main body 10 and re-fitting the horizontal receiving portion 1 from the rear side from the rear side.

[0011]

1 shows a bracket for a grating receiving frame according to an embodiment of the present invention. This bracket is ABS
Bracket body 1 made of hard synthetic resin molded product such as resin
0, a slide frame 11 made of a similar resin molded product, and a cover plate member 6 which is an accessory of the bracket body.

The bracket body 10 includes a rectangular horizontal receiving portion 1 and a substantially inverted T-shaped vertical piece 2 rising from the front end thereof.
And a substantially inverted L-shaped support leg piece 3, 3 whose front portion is longer than both left and right ends of the horizontal receiving portion 1, and a lower front end of each of the support leg pieces 3, 3 is provided by a reinforcing bar 3a. Connected. Then, on the left and right sides of the rear part of the horizontal receiving part 1,
Rack-shaped stoppers 5, 5 are provided along the front-rear direction, and the teeth 5a of the stoppers 5 have a shape protruding to the side of the horizontal receiving part 1 and inclined forward. ing. As shown in FIG. 5, a horizontally elongated slit-shaped insertion hole 7 opened only at the front end face of the horizontal receiving portion 1 is formed on the lower surface side of the front portion of the horizontal receiving portion 1. Has a stepped portion 7b for fitting a cover plate on the periphery thereof.

As shown also in FIG.
The vertical piece 2 has a substantially inverted T-shape with a vertical piece 2a extending upward and left and right side pieces 2b, 2b projecting from both lower portions thereof, and a root having the same width as the horizontal receiving portion 1. The portion 20 is formed to be thin, and has a horizontally-long locking convex portion 21 just above the center of the root portion 20 on the surface side, that is, the surface on the rear side of the bracket, and the vertical piece portion 2a is formed on the formwork. A graduation line 22 is provided as an index of the mounting height, and a shallow vertical groove 23 extending from the position of the locking projection 21 to the lower end is formed in the center of the rear side.
A through-hole 24 provided in the upper part of the vertical groove 23 opens on the locking convex part 21 on the front surface side, and further has nail holes 25 in three places of the upper part of the vertical part 2a and the right and left side parts 2b, 2b. doing.

The slide frame 11 is bent downward on both left and right sides to form U-shaped frame portions 8 and 8 for holding the stop portions 5 and 5 of the bracket body 10, and a strip-shaped base portion 11a, and an upper surface thereof. A pair of positioning pieces 4 and 4 protruding forward and curving forward.
As shown in FIG. 3, a claw 8a is formed at the inner rear end of each of the U-shaped frame portions 8 so as to engage with the teeth 5a of the retaining portion 5. The base portion 11a is attached to the bracket body 10 as shown in FIG. The claws 8a are engaged with the teeth 8a of the retaining portions 5 by being fitted over the horizontal receiving portion 1 from the rear side, so that the claws 8a can forcibly move forward but move backward. It is attached to the bracket main body 10 in an impossible state.

Therefore, according to the slide frame 11, the size of the angle member 13 (see FIGS. 4 to 6) of the grating receiving frame placed on the horizontal receiving portion 1, that is, the width of the horizontal piece 13a, The position of the positioning piece 4 to be brought into contact with the edge can be set, and if the positioning piece 4 goes too far ahead of the predetermined position, as shown by the imaginary line in FIG.
When the bracket 1 is moved to the front of the horizontal receiving portion 1 beyond the stop portions 5 and 5, the bracket 1 can be detached upward.
0, and can be repositioned from behind on the horizontal receiving portion 1 to set the position.

The cover plate member 6 is formed in an inverted T-shape by a horizontally long cover plate portion 6a and a flaky mounting portion 6b rising from the center thereof, and a locking pin 6c is projected from an upper end of the mounting portion 6b. By fitting the mounting portion 6b into the vertical groove 23 of the bracket main body 10 and inserting the locking pin 6c into the through hole 24, the lid plate portion 6a is formed into the lid plate fitting step portion of the insertion hole 5. 5b is attached to the bracket main body 10 in a state of fitting.

In order to mount the grating receiving frame, a plurality of brackets in which the slide frame 11 and the cover plate member 6 are previously mounted on the bracket body 10 when constructing the groove by casting concrete are shown in FIG. As shown, the vertical piece 1 is fixed to the vertical surface of the concrete formwork 12 at predetermined intervals via the nails 15 and 15. Then, the mold 12 is fixed at a set position for forming a groove by the spacer 16 and the bolt 17, and the angle member 13 is placed on the horizontal receiving portion 1 across a plurality of brackets. At this time, the angle member 13 engages the edge of the horizontal piece 13a between the locking convex part 21 and the horizontal receiving part 1, and the vertical piece 13b
The positioning piece 3 is pushed backward and bent in the lower part of the frame, but the bracket body 10 abuts the lower portions of the supporting leg pieces 4 and 4 against the surface of the mold frame 12 to horizontally move the horizontal receiving portion 1. Because it is supported, it is held in a horizontal and horizontal state. An anchor 13c is fixed to the back of the vertical piece 13b of the angle member 13 at an appropriate interval.

The slide frame 11 may be set in advance at a predetermined position where the positioning piece 3 should resiliently contact the rear end of the angle member 13. After the angle member 13 is placed on the horizontal receiving portion 1 in a standby state, it may be advanced to the predetermined position.

After arranging the angle members 13 in this manner,
Concrete 14 (see FIG. 5) is cast between the molds 12. As a result, the bracket is buried in the concrete 14 except for the vertical piece 2. However, since the opening 5a is closed by the cover plate member 6, the concrete 14 enters the inside of the insertion hole 5. Keep hollow state. Then, after the concrete 14 has hardened to a certain extent, the nails 15, 15 are pulled out, the vertical piece 2 is removed from the formwork 12, and the formwork 12 is removed. Next, as shown in FIG. 5, when the vertical piece 2 standing upright at the front edge position of the fixed angle member 13 is turned forward as shown by the imaginary line in the figure, the vertical piece 2 becomes thinner at the root 20. To separate from the horizontal receiving portion 1 and the lid plate member 6 is removed together with the vertical piece 2, so that the insertion hole 5 of the horizontal receiving portion 1 is opened.

Next, as shown in FIG. 6, the insertion piece 9a of the elastic pad 9 made of rubber or semi-rigid synthetic resin is inserted into the insertion hole 5 opened in each bracket body 10, and the elastic pad 9 is buffered. The seat 9b is connected to the horizontal piece 13 of the angle material 13.
a. Therefore, if the grating 18 is fitted into the groove after the construction as shown by the dashed line in FIG. 6, the buffer sheet 9 b of the elastic pad 9 is interposed between the lower surface and the side surface and the angle member 13. And the angle member 13 are not in direct contact with each other. Therefore, even when a person, a vehicle, a trolley carrying articles, etc., passes on the grating 18, the grating 18 and the angle member 13 do not come into contact with each other with metal, and vibration is absorbed by the elasticity of the elastic pad 9. Therefore, no noise is generated and the rattling of the grating 18 is significantly reduced.

In the above embodiment, the bracket body 10
The elastic pad 9 is attached and fixed by providing an insertion hole 10 in the present invention. However, the present invention provides a bracket having no insertion hole 10 or an L-shape in which the vertical piece 2 is integrated with the insertion piece. The insert piece of this separate member is inserted into the insertion hole 10 to form the bracket body 10, and after the concrete 14 is solidified, the vertical piece 2 is not cut off and the concrete form 12
Needless to say, the present invention can also be applied to a bracket having a structure to be detached together with the bracket. Further, the stop portions 8, 8 are provided on the upper surface of the horizontal receiving portion 1, and guide ridges are formed on both sides of the horizontal receiving portion 1, and are engaged with the stop portions 8, 8 on both lower surfaces. The slide frame 11 on which the claw is formed has the U-shaped frame portions 8 on both sides.
It is good also as a structure which fits in the said guide ridge. Furthermore, in the present invention, the shape of the vertical piece of the bracket body and the support leg piece,
The detailed configuration such as the shape of the positioning piece 4 of the slide frame 11 can be variously changed in design other than the embodiment.

[0022]

According to the invention of claim 1, when the groove for fitting the grating is constructed, the bracket for the grating receiving frame is fixed to the concrete form by the vertical piece,
The angle material of the grating receiving frame is placed on the horizontal receiving portion and held horizontally, and concrete can be cast between the formwork in this holding state, and after the angle material placed on the horizontal receiving portion. Since the spacing between the positioning piece and the vertical piece that abuts on the end can be freely set, the same bracket can be used without any difficulty for angle materials having different standard dimensions, and the size corresponding to each standard dimension as in the conventional case It is not necessary to prepare a bracket, and the position of the positioning piece can be set only by pushing the slide frame forward, so that it is very easy to operate, and the bracket is structurally simple and inexpensive due to mass production of a single product. It can be manufactured, and because the slide frame irreversibly straddles the horizontal receiving part of the bracket body, there is no danger that the set position on the horizontal receiving part will shift, and the angle material is made of concrete. Until solidified settings can be stably held in position.

According to the second aspect of the present invention, when the slide frame is fitted over the horizontal receiving portion of the bracket body from the rear and moved to a predetermined position, even if the slide frame is erroneously moved too far ahead of the predetermined position, the bracket may be used. If the slide frame is moved to the front of the horizontal receiving portion, the sliding frame can be detached upward. Therefore, the position can be set by removing the bracket from the bracket body and straddling the horizontal receiving portion again from the rear side. Thus, there is provided an apparatus which does not have a possibility of becoming unusable and can avoid unnecessary cost increase due to the unusable state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a bracket for a grating receiving frame according to an embodiment of the present invention.

FIG. 2 is a front view of a main body of the bracket.

FIG. 3 is a partially broken plan view showing a state in which the slide frame is fitted over the bracket main body.

FIG. 4 is a longitudinal sectional view of a groove using the bracket before concrete is poured.

FIG. 5 is a vertical cross-sectional view after the concrete is cast in the trench construction.

FIG. 6 is a longitudinal sectional view after the completion of the groove construction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Horizontal receiving part 2 Vertical piece 3 Support leg piece 4 Positioning piece 5 Stop part 7 Elastic pad 10 Bracket body 11 Slide frame 12 Concrete form 13 Angle material 14 Concrete 18 Grating

Claims (2)

(57) [Scope of request for utility model registration] 1. A vertical piece attached to a concrete formwork is provided at a front end of a horizontal receiving section, and supporting leg pieces are provided on both left and right sides of the horizontal receiving section so that lower portions abut on the formwork surface. It consists of a bracket body and a slide frame provided with a positioning piece to be brought into contact with the rear end of the angled material of the grating receiving frame placed on the horizontal receiving portion. A rack-shaped stop portion is formed along the direction, and the slide frame is fitted over the horizontal receiving portion so that the slide frame cannot retreat and can be forcibly moved forward by engagement with the both stop portions. Brackets for grating receiving frames. 2. A structure in which a stop portion is formed at a rear side of a horizontal receiving portion, and a slide frame can be detached upward from the horizontal receiving portion at a front side of the horizontal receiving portion beyond the stop portion. The bracket for a grating receiving frame according to claim 1, wherein: