JP4239103B2 - Grating slip stopper - Google Patents

Description

  The present invention relates to a grating stopper for covering a groove or the like.

  The grating covering the groove is used by placing a large number of horizontal lattices on the left and right frame members extending in the longitudinal direction of the groove and placing it on top of the groove such as a U-shaped groove. In such a grating, when the groove is inclined in the longitudinal direction, a problem of “position shift” occurs. If an automobile passes through a slope like this, bending deformation may occur in the grating at that time, or if pebbles or sand particles are sandwiched between the grating and the upper surface of the groove, the tire load and its Each time the driving force is repeatedly applied, a phenomenon occurs in which the grating moves little by little. This is the aforementioned “positional deviation”.

And in order to prevent the position shift of such grating, the structure which presses a volt | bolt to the inner wall of a groove | channel is employ | adopted. That is, a projecting member such as a bolt laid between both inner walls of the groove passes through a part of the grating so that a positional shift does not occur.
JP 2000-192534 A JP 2002-038577 A

  In the structures as described above, that is, in Patent Documents 1 and 2, a structure is adopted in which a protruding member is fixed to the lower side of the grating by welding or the like and a protruding member such as a bolt is passed through the protruding member. .

  In such a structure, it is necessary to additionally attach the protruding member to a part of the mass-produced grating, which increases the production process and causes a decrease in productivity and an increase in cost. Further, when an appropriate coupling position of the protruding members cannot be secured, a problem arises in the structural feasibility.

  The present invention is provided in order to solve the above-described problems. The grating is prevented from slipping with a metal fitting prepared as a separate part without giving a special structure to the grating itself. It aims at providing metal fittings.

Means to solve the problem

  The present invention is provided in order to solve the above-described problems, and the invention according to claim 1 is configured such that the metal fitting body includes a locking portion and a support member provided integrally therewith. At the same time, it is made detachable with respect to the grating, the locking portion is locked to a frame material along the longitudinal direction of the groove arranged on the left and right of the grating, and the support member is lowered along the inner wall of the groove A grating mounting bracket, wherein the support member is provided with a passage hole that is disposed in a stretched state and through which a tension member laid between inner walls of the groove passes.

The invention's effect

  As mentioned above, since the bracket body is detachable from the grating, the grating itself is produced in a standard structure with mass productivity without any special structural changes, and it is structurally cost-effective. Is also advantageous. As for the prevention of slippage, the customer who needs to purchase it can purchase the bracket body, assemble it into the standard grating, and combine it with the tension member. Can be taken.

  The metal fitting body has a locking portion locked by a frame member, a support member is arranged in a state of extending downward along the inner wall of the groove, and is provided with a passage hole through which the tension member passes. Therefore, the movement of the metal fitting body is surely restrained by the tension member that is stretched on the inner wall of the groove, and the grating itself is also restrained from moving.

  Furthermore, since the support member has a structure extending downward along the inner wall of the groove, the flowing water space of the groove is not impaired and the function of the groove is not adversely affected.

  According to a second aspect of the present invention, the frame member is composed of a cross member disposed in a substantially horizontal direction, and a vertical member formed integrally with the cross member and extending in the depth direction of the groove, and the locking portion. 2. The grating detent fitting according to claim 1, wherein said support member extends downward along said vertical member.

  Since the locking portion is coupled to the horizontal member arranged in the substantially horizontal direction, and the support member is disposed along the vertical member extending in the depth direction of the groove, sufficient coupling strength of the locking portion is ensured. In addition, the support member can be in a posture in which it can easily be penetrated by the tension member, and the metal fitting body can be firmly coupled to the grating. Further, it is possible to sufficiently secure the tension function of the tension member.

  According to a third aspect of the present invention, in the grating according to the first or second aspect, the width of the metal fitting body is set to be slightly smaller than the interval between the horizontal lattices installed between the frame members in the width direction of the groove. This is an anti-slip bracket

  As described above, since the metal fitting body is inserted between the horizontal lattices and the gap between the metal fitting main body and the horizontal lattice is set small, the shifting of the grating is performed by the metal fitting body positioned by the tension member. Is restrained.

  Next, the best mode for carrying out the latching metal fitting of the present invention will be described.

  1 to 4 show a first embodiment.

  Reference numeral 1 denotes a groove such as a U-shaped groove made of concrete, and has a vertical wall-like inner wall 2 and 2 and a substantially horizontal upper surface 3 and 3. Reference numeral G denotes the entire grating. The left and right frame members 4, 4 arranged along the longitudinal direction of the groove 1 are cross members 5, 5 arranged in a substantially horizontal direction, and the cross members 5, 5. 5 is formed of longitudinal members 6 and 6 which are formed integrally with the groove 5 and extend in the depth direction of the groove 1. As shown in FIG. 1, the frame members 4 and 4 are long steel members having an L-shaped cross section, that is, L-shaped steels, and the left and right members are arranged in parallel.

  A large number of horizontal lattices 7 are installed at equal intervals across the width direction of the groove 1 between the vertical members 6 and 6 of the frame members 4 and 4. Both ends of these horizontal grids 7 are welded to the vertical members 6 and 6. The two vertical lattices 8 are arranged in the longitudinal direction of the groove 1 and are welded to the horizontal lattice 7.

  In such a grating G, the transverse members 5 and 5 are usually placed on the upper surface 3 of the groove 1, and the longitudinal members 6 and 6 are inserted along the inner walls 2 and 2 of the groove 1.

  Next, a description will be given of the latch G for the grating G.

  The slip-prevention metal fitting 9 is made by using a metal fitting body 10 as a base material, and is formed by bending a strip-shaped steel plate. The metal fitting body 10 includes a locking portion 11 and a support member 12 provided integrally therewith, and is detachable from the grating G. This detachable structure will be described later with reference to FIG.

  Various structures can be adopted as the structure for coupling the locking portion 11 to the cross member 5. For example, a structure that bolts the cross member 5 or a structure that receives the cross member 5 can be employed. In this embodiment, it is the latter one.

  That is, the locking piece 14 is formed by bending the end of the flat upper plate 13 into a U-shape. The locking piece 14 is bent in a direction parallel to the upper plate 13, and the length of the groove 1 in the width direction is about half that of the upper plate 13. An insertion space 15 is formed between the upper plate 13 and the locking piece 14.

  The support member 12 is bent at a substantially right angle from the upper plate 13 and extends downward along the longitudinal members 6 and 6. The support member 12 has a through hole 17 through which the rod-like tension member 16 passes.

  The said tension member 16 is made into the structure which can make the length compulsorily long by rod shape. The shaft 18 is composed of left and right shaft portions 18, 18, a bolt shaft 19 coupled to one shaft portion 18, and a hollow shaft 20 coupled to the other shaft portion 18, and a female screw is cut inside the hollow shaft 20. . The bolt shaft 19 is screwed into the female screw of the hollow shaft 20.

  Although not shown, the hollow shaft 20 has a square cross section and a hexagonal cross section for engaging the rotary tool. Moreover, the rotating part 21 is formed also in the volt | bolt axis | shaft 19, This cross section is made into the shape similar to the hollow axis | shaft 20, and the tool for rotation can be applied.

  In order for the shaft portion 18 penetrating the passage hole 17 to bite into the inner walls 2, 2, the tip of the shaft 18 has a pointed shape. Such a cone-shaped portion is indicated by reference numeral 22.

  FIG. 4 is a cross-sectional view showing the order in which the metal fitting body 10 is assembled to the frame member 4. First, as shown in FIG. 4A, the metal fitting body 10 is inserted in the direction of the arrow line 23 from obliquely above. At this time, the end of the cross member 5 faces the opening of the insertion space 15, and the inner surface of the support member 12 is in contact with the corner of the frame member 4.

  Then, as shown in (B), when the entire metal fitting body 10 is turned in the direction of the arrow line 24, the state shown in (C) is restored, and finally the movement as shown by the arrow line 25 in (D). Then, the inner surface of the upper plate 13 is in close contact with the upper surface of the cross member 5, and the inner surface of the support member 12 is in close contact with the vertical member 6, completing the assembly.

  The assembly of the metal fitting body 10 shown in FIG. 4 proceeds while the support member 12 is inserted between the horizontal lattices 7. At this time, the gap between the support member 12 and the horizontal lattice 7 is in a very small or almost no gap state as indicated by reference numeral 26 in FIG. That is, the width of the metal fitting body 10 is set to be slightly smaller than the interval between the horizontal lattices 7 installed between the frame members 4 and 4.

  Thereafter, when the tension member 16 is assembled and the hollow shaft 20 or the rotating portion 21 is turned to forcibly increase the length of the tension member 16, the cone-shaped portion 22 bites into the inner walls 2 and 2, and the metal fitting body 10 moves. Is restrained.

  The effects of the first embodiment described above are listed as follows.

  As described above, since the engaging portion 11 of the metal fitting body 10 is detachable from the grating G, the grating G itself is produced with a standard structure having mass productivity without any special structural change. It is advantageous in terms of cost and structure. In order to cope with the slippage prevention, the customer who needs to purchase the bracket body 10 may assemble it into the standard grating G and combine it with the tension member 16, and therefore the customer who needs the slippage prevention. Can take action.

  The metal fitting body 10 has an engaging portion 11 engaged with the cross member 5 of the frame member 4, a support member 12 arranged in a state of extending downward along the inner walls 2, 2 of the groove 1, and a tension member Since the passage hole 17 through which 16 penetrates is provided, the movement of the metal fitting body 10 is surely restrained by the tension member 16 which is stretched in a stretched state on the inner walls 2 and 2 of the groove 1. The grating G itself is also restrained from moving.

  Further, since the support member 12 has a structure extending downward along the inner walls 2 and 2 of the groove 1, it does not impair the running water space of the groove 1 and may adversely affect the function of the groove 1. Absent.

  The frame members 4, 4 are composed of cross members 5, 5 arranged in a substantially horizontal direction, and vertical members 6, 6 formed integrally with the cross members 5, 5 and extending in the depth direction of the groove 1. The locking portion 11 is locked to the cross members 5 and 5, and the support member 12 extends downward along the vertical members 6 and 6.

  Since the locking portion 11 is coupled to the cross members 5 and 5 disposed in the substantially horizontal direction, and the support member 12 is disposed along the vertical members 6 and 6 extending in the depth direction of the groove 1, the locking portion 11 can be sufficiently secured, and the support member 12 can be in a posture to easily receive the penetration of the tension member 16, so that the metal fitting body 10 can be firmly bonded to the grating G. Further, it is possible to sufficiently secure the tension function of the tension member 16.

  The width of the metal fitting body 10 is set to be slightly smaller than the interval between the horizontal lattices 7 laid between the frame members 4 and 4.

  As described above, since the metal fitting body 10 is inserted between the horizontal lattices 7 and the gap between the metal fitting main body 10 and the horizontal lattice 7 is set small, the metal fitting body 10 positioned by the tension member 16 is used. As a result, the displacement movement of the grating G is constrained.

  FIG. 5 shows a second embodiment.

  In this embodiment, the metal fitting body 10 is assembled from the outside of the frame members 4 and 4. That is, the latching part 11 assembled to the cross members 5 and 5 is fitted from the outside, and the fitting body 10 is not required to be turned in as shown in FIG. Therefore, the support member 12 is located between the longitudinal member 6 and the inner wall 2. Other configurations are the same as those of the first embodiment, and members having the same functions are denoted by the same reference numerals.

  With such a configuration, the metal fitting body 10 is assembled from the outside, so that the work is simplified. Moreover, since it is not necessary to pass the support member 12 between the horizontal grids 7, it can be applied to the grating G having a small interval between the horizontal grids 7. Other functions and effects are the same as those of the first embodiment.

  FIG. 6 shows a third embodiment.

  In this embodiment, the shape of the locking portion 11 of the metal fitting body 10 is modified. That is, the end of the upper plate 13 is bent at an acute angle. The bending angle θ at the bent portion 28 is an acute angle, 75 degrees in this example. When the end portions of the cross members 5 and 5 are fitted into the inner corner portions of the bent portion 28 and the metal fitting body 10 is rotated clockwise, FIG. It will be in the state of assembly completion shown in. For this purpose, the distance between the upper portion of the support member 12 and the inner corner portion of the bent portion 28 is set to be approximately the same as the width of the cross members 5 and 5. By doing so, the cross members 5 and 5 are put in the width direction. Moreover, since the edge part of the cross members 5 and 5 becomes the shape cut diagonally as shown with the code | symbol 30, it can bite into the said inner corner part firmly.

  Other configurations and operational effects are the same as those of the previous embodiments.

  According to the present invention, the intended purpose can be achieved simply by assembling a stopper fitting to a standard grating marketed as an off-the-shelf product, so that it can be widely used.

It is sectional drawing which shows the Example of this invention. It is a top view which shows the mounting state of a slip stopper. It is a perspective view of a slip prevention metal fitting. It is sectional drawing which shows the assembly | attachment procedure of a metal fitting main body. It is sectional drawing which shows another Example. Furthermore, it is sectional drawing which shows another Example.

Explanation of symbols

G Grating 1 Groove 2 Inner wall 3 Upper surface 4 Frame material 5 Horizontal material 6 Vertical material 7 Horizontal lattice 9 Detachment fitting 10 Metal fitting body 11 Locking portion 12 Support member 16 Strut member 17 Passing hole

Claims (3)

  The metal fitting body is composed of a locking portion and a support member provided integrally therewith, and is detachable with respect to the grating. The locking portion is in the longitudinal direction of the grooves disposed on the left and right sides of the grating. The support member is disposed in a state of extending downward along the inner wall of the groove, and a through hole is provided in the support member through which a tension member erected between the inner walls of the groove passes. Grating slip-off fittings characterized by   The frame member is composed of a cross member disposed in a substantially horizontal direction and a vertical member formed integrally with the cross member and extending in the depth direction of the groove, and the locking portion is locked to the cross member, The grating stopper according to claim 1, wherein the support member extends downward along the longitudinal member.   The grating metal fitting according to claim 1 or 2, wherein the width of the metal fitting body is set to be slightly smaller than the interval between the horizontal lattices provided between the frame members in the width direction of the groove.

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