JP2005146729A - Grating and assembly jig therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grating which protects wheels of a baby carriage from fitting therein and prevents slippage on the same at the time of raining. <P>SOLUTION: The grating comprises main members 2 formed of strips, auxiliary members 3 arranged between the main members 2, and frame bodies 4 formed of end angles connected to edges of the respective main members 2. The main members 2 are arranged in parallel with each other at regular intervals, and the auxiliary members 3 which are arranged between the main members 1 so as to make contact with the adjacent main members 2, are each bent such that ridges 5 and valleys 6 are alternately extended. Further each auxiliary member 3 has anti-skid protrusions 7 formed on front and rear surfaces thereof, and the ridges 5 and the valleys 6 of each auxiliary member 3 are welded to the main members 2 so that the front surface of the auxiliary member 3 is flush with a front surface of the main member 2. Herein the auxiliary members 3 arranged between the main members 2 are secured to the main members 2 so that the ridges 5 and the valleys 6 of the mutually adjacent auxiliary members 3 become symmetrical, and the auxiliary members 3 are arranged so as to form a honeycomb structure over the entire grating 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Conventionally, as shown in Patent Document 1, for example, the grating has a lattice shape including a parallel main member, a main member, and an auxiliary member arranged orthogonal to the main member, and is mainly made of steel. . In the case of steel gratings, a main member of a certain length, which is usually parallel, and a main member and an auxiliary member are welded, and a frame such as an end plate or an angle member is fixed to the end of the main member, and a bridge, Used as a floor board for roads, factories, etc., or as a groove cover.
JP 2002-349010 A

  In such a grating, since the main member and the auxiliary member are orthogonal to each other and are formed in a lattice shape as a whole, if the interval between the main members is wide, the wheel is placed in the gap between the main member and the auxiliary member. There is an easy-to-fit side. Furthermore, since the surface of the grating is smooth, it is slippery, and even under wet conditions such as rain, it becomes even slippery.

  An object of the present invention is to provide a grating that does not easily fit into a wheel such as a stroller and does not slip, and a manufacturing method that can easily manufacture the grating without causing the above-described problems.

  In order to solve the above-described problem, the grating according to claim 1 of the present invention includes a plurality of thin plate-like main members arranged side by side, an auxiliary member provided between the main members, and the main member. In a grating having a frame connected to an end, the auxiliary member is bent so that a peak and a valley are continuous so as to connect to the adjacent main member, and the adjacent auxiliary member is symmetrical The auxiliary member is connected to the main member so as to be disposed in a honeycomb shape as a whole, and a plurality of anti-slip protrusions are formed on at least the surface side of the auxiliary member.

  In such a case, since the auxiliary member that is bent so that the peak portion and the valley portion are continuous is disposed between the adjacent main members, the wheel of the stroller is placed in the gap between the adjacent main members. There are no worries about fitting. Moreover, it improves also from the point of the rigidity and buckling strength of grating. Further, the anti-slip effect by the anti-slip protrusion formed on the auxiliary member can be exhibited.

  A grating assembly jig according to a second aspect of the present invention is an assembly jig for assembling the main member and auxiliary member of the grating according to the first aspect, and has a groove portion for positioning the main member. A positioning unit that holds the gap, a main member receiving portion that aligns the height of the main member held by the positioning unit, and an auxiliary member that is inserted between the main members held by the positioning unit. And an auxiliary member receiving portion that aligns the height of the main member receiving portion, and an abutting member that abuts the end portions of the main member and the auxiliary member so as to align the end portions of the main member and the auxiliary member. Features.

  When comprised in this way, while maintaining a space | interval between main members by a positioning unit, the height of a main member and an auxiliary member can be correctly aligned with a main member receiving part and an auxiliary member receiving part. Further, the main member and the auxiliary member are positioned in the longitudinal direction by bringing the abutting member into contact with the end portions of the main member and the auxiliary member. Thus, the position of the main member and the auxiliary member and the position of the adjacent auxiliary member receiving portion can be accurately matched.

  According to the invention of claim 1, a plurality of thin plate-like main members arranged side by side, an auxiliary member provided between these main members, and a frame body connected to an end portion of the main member, In the grating having the main member, the auxiliary member is bent so that the crest and the valley are continuous so as to connect the auxiliary member to the adjacent main member, and the adjacent auxiliary members are arranged symmetrically. The auxiliary member is connected and arranged in a honeycomb shape as a whole, and a plurality of anti-slip protrusions are formed on at least the surface side of the auxiliary member, so that the wheel of the stroller fits into the gap between the adjacent main members. There is no worry. Moreover, the anti-slip | skid effect by the anti-slip | slipping protrusion formed in an auxiliary member can be exhibited, and a pedestrian can be given a sense of security even under wet conditions, such as rain.

  According to a second aspect of the present invention, there is provided an assembling jig for assembling the main member and the auxiliary member of the grating according to the first aspect, wherein the jig has a groove portion for positioning the main member to maintain the interval between the main members. A positioning unit, a main member receiving portion for aligning the height of the main member held by the positioning unit, and an auxiliary member inserted between the main members held by the positioning unit are supported, and the auxiliary member and the main member receiving portion. And an abutting member that abuts the main member and the end of the auxiliary member to align the main member and the end of the auxiliary member. It is possible to accurately match the position of the auxiliary member with respect to the main member and the position of the adjacent auxiliary members without shifting the member and the auxiliary member. Further, the assembly work of the main member 2 and the auxiliary member 3 is simplified, and the productivity is increased.

  Embodiments of the present invention will be described below with reference to FIGS. 1 to 2 show one aspect of the grating 1 according to the present invention. A main member 2 having a thin plate shape, an auxiliary member 3 disposed between the main members 2, and the main member 2. And a frame body 4 having an end angle connected to the end portion. The main members 2 are arranged in parallel at equal intervals so as to be parallel to each other, and the auxiliary members 3 disposed between the main members 1 so as to be in contact with the adjacent main members 2 are respectively a peak portion 5 and a valley portion 6. Is bent to be continuous. Further, the auxiliary member 3 has anti-slip protrusions 7 formed on the front and back surfaces thereof. And the peak part 5 and the trough part 6 of the auxiliary member 3 are welded to the adjacent main member 2 respectively so that the surface of the auxiliary member 3 and the surface of the main member 2 may be aligned. Here, the auxiliary member 3 disposed between the main members 1 is fixed to the main member 2 so that the peak portions 5 and the valley portions 6 of the adjacent auxiliary members 3 are symmetrical, and the grating 1 as a whole. The auxiliary members 3 are arranged in a honeycomb shape.

  Next, an assembly jig for the grating 1 according to the present invention will be described with reference to FIGS. A plurality of support bases 11 for supporting the main member 2 and the auxiliary member 3 are arranged side by side on the base 10 of the assembly jig. The support 11 has a groove 12 for positioning the main member 2 to maintain a distance between the main members 2 and a main member receiver on which the main member 2 is placed and the main members 2 are aligned in height. Part 14 and auxiliary member receiving part 15 on which auxiliary member 3 is placed and the height of each auxiliary member 2 is made uniform. The auxiliary member receiving portion 15 is also used as a positioning unit 13 that keeps the distance between the main members 2. The auxiliary members 2 are placed on the positioning unit 13 so that the heights of the auxiliary members 2 are equalized. It is configured. Further, stoppers 16 that are in contact with the side surfaces of the outermost main member 2 are fixed to both sides of the auxiliary member receiving portion 15.

  A pair of abutting members 20, 21 that align the ends of the main member 2 and the auxiliary member 3 are fixed to the base 10. Each of the abutting members 20 and 21 is fixed to a mounting frame 22 assembled to the base 10 via a cylinder 23, and is slidably attached by the cylinder 23. Further, as shown in FIG. 7, the abutting members 20 and 21 are composed of a contact unit 24 that contacts the main member 2 and a contact block 30 that contacts the auxiliary member 3. A recessed groove 25 corresponding to the width of the auxiliary member receiving portion 15 is formed, and the contact block 30 is fitted into the recessed groove 25. Note that the length of the grating 1 is, for example, a minimum of 130 mm to a maximum of 2000 mm, and the one abutting member 21 can slide relative to the base 10 in accordance with the length of the grating 1 to be assembled. In addition, the assembly jig of the grating 1 has a plurality of assembly jigs arranged in parallel with each other. For example, as shown in FIG. 8, two sets of assembly jigs a and b are arranged at intervals. The material 2, the main member 2 and the auxiliary member 3 positioned by the assembly jigs a and b are welded by a spot welding machine 35. That is, the spot welder 35 is provided so as to freely reciprocate along the assembly jigs a and b, and is provided so as to be movable up and down via a cylinder device (not shown).

  The main member 2 and the auxiliary member 3 are positioned relative to each other using the assembly jig configured as described above. The main member 2 and the auxiliary member 3 incorporated in the assembling jig are previously cut to a predetermined length according to the size of the grating 1, and the auxiliary member 3 is provided with a non-slip protrusion on the front and back sides by a punching press. 7 is formed, the ridges 5 and the valleys 6 are bent and formed by a press machine so as to be continuous. In this way, the molded main member 2 and auxiliary member 3 are positioned and held by the support base 11. That is, first, the main member 2 is inserted into the groove portion 12 of the positioning unit 13 and the interval between the main members 2 is maintained. At this time, the main member 2 is placed on the main member receiving portion 14 so that the heights of the main members 2 are aligned. Further, the main members 2 on both sides located outside the main member 2 incorporated in the assembly jig are supported with the side surfaces in contact with the stopper 16. When the auxiliary member 3 is inserted between the main members 2, the auxiliary member 3 is supported by the auxiliary member receiving portions 15, and the heights of the auxiliary member receiving portions 15 are aligned. The height is also aligned. Thus, the level of the main member 2 and the auxiliary member 3 is maintained. Further, the abutting unit 24 of the abutting members 20 and 21 is brought into contact with the end portions of the main member 2 by operating the cylinder 23 to bring the abutting members 20 and 21 into contact with the end portions of the main member 2 and the auxiliary member 3. The abutment block 30 abuts against the end of the auxiliary member 3. In this way, the main member 2 and the auxiliary member 3 are brought into contact with the abutting members 20 and 21 so that the main member 2 and the auxiliary member 3 are positioned in the length direction. Accordingly, the auxiliary members 3 adjacent to each other through the main member 2 are accurately positioned so as to be symmetrical with each other, and thereafter, the auxiliary member 3 adjacent to the main member 2 is sequentially spot welded by the spot welding machine 35. The main member 2 and the auxiliary member 3 are fixed together. After the main member 2 and the auxiliary member 3 are integrated in this way, the grating 1 is manufactured by welding the frame body 4 having an end angle to the end portion of the main member 2.

  In the grating 1 configured as described above, the auxiliary member 3 is bent so that the peak portion 5 and the valley portion 6 are continuous, and the peak portion 5 and the valley portion 6 are fixed to the adjacent main member 2 to be main. Since the auxiliary member 3 is arranged in a meandering manner between the main members 2, there is no concern that a baby stroller wheel fits into the gap between the adjacent main members 2. Moreover, it improves also from the point of the rigidity and buckling strength of the grating 1. Furthermore, the anti-slip effect by the anti-slip protrusion 7 formed on the auxiliary member 3 can be exhibited, and a pedestrian can be provided with a sense of security even under wet conditions such as rain. The adjacent auxiliary members 3 need to be positioned accurately so as to be symmetrical with each other, but the positioning unit 13 keeps the main members 2 spaced from each other, and the main member receiving portion 14 and the auxiliary member receiving portion. 15, the heights of the main member 2 and the auxiliary member 3 can be accurately aligned, and the main member 2 and the auxiliary member 3 are positioned in the length direction. In this manner, the main member 2 and the auxiliary member 3 are spotted by the spot welding machine 35 in a state where the positions of the main member receiving portion 14 and the auxiliary member receiving portion 15 and the positions of the adjacent auxiliary member receiving portions 15 are accurately aligned. There is no concern that the auxiliary member 3 is displaced by welding. Further, by using the assembly jig, the assembling work for the main member receiving portion 14 and the auxiliary member receiving portion 15 is simplified, and the productivity is increased.

  As mentioned above, although the present Example was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, what is necessary is just to select suitably the space | interval of the peak part and trough part in an auxiliary member, the positioning structure of a main member, and an auxiliary member.

It is a perspective view of the grating of the present invention. It is a front view of grating same as the above. It is a front view which shows the assembly jig | tool of the grating of this invention. It is a plane surface which shows the assembly jig | tool of grating same as the above. It is a front view of a positioning unit same as the above. It is the front view which expanded the stopper circumference same as the above. It is the front view to which the abutting member same as the above was expanded. It is a schematic explanatory drawing which shows arrangement | positioning of an assembly jig same as the above.

Explanation of symbols

1 Grating 1
2 Main member 3 Auxiliary member 4 Frame 5 Mountain part 6 Valley part
13 Positioning unit
14 Main member receiving part
15 Auxiliary member receiving part
20,21 Abutting member

Claims (2)

  In the grating comprising a plurality of thin plate-shaped main members arranged side by side, an auxiliary member provided between the main members, and a frame body connected to an end of the main member, the auxiliary member Are connected to the main member such that the adjacent auxiliary members are arranged symmetrically, and the auxiliary member is connected to the honeycomb as a whole. A grating having a plurality of anti-slip protrusions formed on at least the surface side of the auxiliary member.   An assembly jig for assembling the main member and auxiliary member of the grating, a positioning unit having a groove portion for positioning the main member and maintaining a distance between the main members, and a height of the main member held by the positioning unit A main member receiving portion for aligning the height, an auxiliary member inserted between the main members held by the positioning unit, and an auxiliary member receiving portion for aligning the height of the auxiliary member and the main member receiving portion, An assembly jig for grating, comprising: an abutting member that abuts the end portions of the main member and the auxiliary member in contact with the end portions of the member and the auxiliary member.

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