JP3727404B2 - Winding type grating - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a winding type grating that allows a plurality of bearing bars to be connected to each other so as to bend in the vertical direction and to open a groove by winding up. More specifically, the present invention provides a member of a polymer material that is simple in structure, high in strength and lightweight, and easily adheres to dirt such as a synthetic resin material and synthetic rubber in the winding type grating as described above. Relating to unnecessary winding type grating.
[0002]
[Prior art]
As the grating covering the upper surface of the drainage groove or the like, a rectangular shape having a predetermined length in which a plurality of bearing bars are connected by a cross bar or a frame is generally used. However, since such a thing has a rigid plate shape as a whole, it is necessary to remove the entire grating from the opening of the drainage groove when cleaning the drainage groove, which is troublesome. .
[0003]
In order to solve such problems, there is a winding type grating. The conventional winding type grating has a structure in which a plurality of bearing bars are connected by a flexible wire rope or the like, and can be bent freely. Such a thing can be rolled up from its end in order while being laid in the drainage groove, etc., and the drainage groove can be opened for cleaning, etc., and it is not necessary to remove the whole, so the work is easy .
[0004]
By the way, in such a conventional winding type grating, it is necessary to fix each bearing bar in the longitudinal direction of the flexible wire rope and to secure a gap for bending between these bare link bars. For this reason, in this conventional type, a sleeve-like spacer made of an elastic material such as synthetic rubber is interposed between the bearing bars, or a sleeve made of a synthetic resin material is press-fitted into a notch formed in the bare link bar. The diameter of the wire rope was reduced, and the outer periphery of the wire rope was tightened with this sleeve, and the bearing bars were fixed in the longitudinal direction of the wire rope by the frictional force.
[0005]
However, in such a conventional one, the bearing bar is not fixed securely, and each bearing bar can be moved somewhat independently. Therefore, the stability of the bearing bar is poor when laid in a drain groove or the like. Further, the structure is complicated and its strength is insufficient. Further, such a conventional device requires a member made of a polymer material having elasticity, such as a spacer such as a synthetic rubber or a sleeve made of a synthetic resin material. Such a polymer material has a high affinity with, for example, organic matter in the waste water and has a molecular level gap in the material, so that dirt or the like is likely to adhere to and accumulate on the surface. Moreover, since the wire rope as described above is formed by twisting a large number of strands, foreign matter or the like is likely to accumulate in the gaps between these strands. For this reason, for example, when such a winding type grating is laid in the drainage ditch of a food factory, there is a problem that dirt is likely to accumulate as described above, and the cleaning is troublesome and unsanitary. .
[0006]
Moreover, since the weight of the conventional winding type grating is relatively large, the length that can be rolled up by one operation to open the drainage groove is limited by this weight. Therefore, it is preferable that the grating is light in weight in order to increase the length of winding in one operation and achieve efficiency such as a cleaning operation.
[0007]
[Problems to be solved by the invention]
The present invention has been made on the basis of the above circumstances, has a simple structure, is high in strength and lightweight, and does not require a polymer material member that easily adheres dirt such as a synthetic resin material or synthetic rubber, The present invention relates to a winding type grating that is easy to clean.
[0008]
[Means for Solving the Problems]
In the winding type grating according to the first aspect of the present invention , a plurality of bearing bars each having an inverted U-shaped cross section having an upper wall portion and side wall portions on both sides are arranged in parallel with a gap therebetween. comprising a hinge mechanism connecting both ends of the freely bent together, the upper Kihi Nji mechanism upper Kibe its ends through in a direction transverse to the Aringuba each protrude to the side of both side walls of the bearing bar And both ends of the link members are provided with integral link members that protrude on the same plane as the lower edges of the both side walls of the bearing bar or below the lower edges of the side walls. Are pivotally attached to each other.
[0009]
Accordingly, a member made of an elastic material such as a polymer material is unnecessary, and the whole can be formed of a stainless steel material or the like, and it is difficult for dirt to adhere to it, and it is easy to clean and maintain cleanliness. Further, since this bearing bar has a substantially inverted U-shaped cross section, it has high strength and rigidity and is lightweight, and integral link members are provided through both side walls at both ends. Therefore, the lower edge portions of the both side wall portions are connected and reinforced by the link member, and the lower edge portions of the both side wall portions are not bent, and the strength is high. Furthermore, since these bearing bars are pivotally attached by a hinge mechanism, their connection is reliable and the stability of each bearing bar is high.
[0010]
Winding Tokatachi grating of the present invention described in 請 Motomeko 1 also from the lower edge of the front on the same surface as the lower edge of the side walls of the lower edge before Kibe Aringuba tung link member or the side walls It protrudes downward. Therefore, when laying the grating drains, etc., since the edge portion of the trench majority of the lower surface is reliably in contact with the load of the link member is supported by the link member, both side walls of the bearing bar It is possible to reliably prevent the lower edge portion of the portion from being deformed.
[0011]
Further, the winding Tokatachi grating of the present invention according to claim 2, the width of the front Kibe Aringuba, the sum of the previous SL between gap formed between these bearings bars is 80mm or less. Since these bearing bars are pivotally attached via link members, each bearing bar can be tilted independently, and if the edge of the drainage groove is not flat, it may tilt and become unstable. However, in general, the minimum width of the sole is about 100 mm. By setting the dimensions as described above, when a certain bearing bar is stepped on, the bearing bar adjacent to it is always stepped on the sole. Since it is fixed, this bearing bar cannot be tilted and is stable.
[0012]
Further, the winding Tokatachi grating of the present invention according to claim 3, a plurality of holes are formed in the upper wall of the front Kibe Aringuba, peripheral portion anti-slip protrudes bent over these holes Protrusions are formed. Therefore, a reliable anti-slip action is achieved, and the holes also serve to drain water on the upper surface of the bearing bar and reduce the weight. Since the load acting on the bearing bar is mainly supported by the side wall portions, the strength does not decrease even if the above-described hole is formed in the upper wall portion.
[0013]
Further, the winding Tokatachi grating of the present invention according to claim 4, before the lower edge portions of the side walls of Kibe Aringuba fitting notches are formed respectively, before cut link members of both side walls The link member and both side walls are welded while being fitted in the fitting notch. Therefore, the structure is simple, the strength is high, and the manufacture is easy.
[0014]
Further, the winding Tokatachi grating of the present invention described in claim 5, before the side wall portions of Kibe Aringuba joining piece cut and raised portions of the side walls to each side is formed, prior to Tung link member are joined in superposed these joining pieces. Therefore, the structure is simple, the strength is high, and the assembly is easy.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings. 1 to 7 show a winding type grating according to a first embodiment of the present invention. This is laid in a drainage ditch of a food factory, and can be rolled up to easily clean the drainage ditch, and it is difficult for dirt to adhere and easy to clean.
[0016]
In the figure, reference numeral 1 denotes a grating bearing bar. These bearing bars 1 are arranged in parallel to each other at a predetermined interval. And both ends of these bearing bars 1 are connected to each other by a hinge mechanism 2 so as to be rotatable in a vertical plane, and this grating can be bent upward.
[0017]
As shown in FIG. 3, such a grating is laid on, for example, the drainage groove 7, and both ends of the bearing bar 1 and the hinge mechanism 2 are placed on the groove edge 8 of the drainage groove 7. The
[0018]
When the drainage groove 7 is cleaned, for example, as shown in FIG. 7, the drainage groove is opened up sequentially from one end of the grating to open the drainage groove for cleaning. Therefore, it is not necessary to remove the entire grating from the drain groove 7 during cleaning, and the operation is easy. Of course, such a grating is set to an optimum length so that the above-described winding operation is easy, and the weight of the entire grating can be conveyed when laying or the like.
[0019]
Next, the configuration of the bearing bar 1 and the hinge mechanism 2 will be described with reference to FIGS. This bearing bar 1 is formed by press-molding a material that is difficult to be contaminated and easily cleaned, such as a stainless steel plate, and has an upper U-shaped section and an inverted U-shaped cross section having both side walls 4. Or a U-shaped channel shape.
[0020]
A plurality of holes 5 are formed in the upper wall portion 3 by punching. The edges of these holes 5 are bent upward by burring to form anti-slip projections 6. Therefore, the non-slip protrusions 6 provide a reliable anti-slip, and the holes 5 serve to drain water on the upper surfaces of the bearing bars 1. Moreover, by forming these holes 5, the weight of these bearing bars 1 is also reduced. In this case, since the load acting on these bearing bars 1 is mainly supported by the side wall portion 4, even if the hole 5 is formed in the upper wall portion 3, the strength does not decrease.
[0021]
The hinge mechanism 2 includes a link member 11. The link member 11 is also formed by punching a stainless steel plate or the like, and has an integral elongated plate shape. And the slit-like fitting notch 14 is formed in the lower edge part of the both-sides wall part 4 in the both ends of said bearing bar 1. As shown in FIG. These link members 11 are inserted into the fitting notches 14 and penetrate the end portions of the bearing bar 1 in the transverse direction. In addition, these link members 11 and the part of the fitting notch 14 of the side wall parts 4 are welded by spot welding or the like.
[0022]
Moreover, the both ends of said link member 11 protrude to the side of said both-side wall part 4, and the pivot hole 13 is formed in the front-end | tip part. The ends of the link members 11 of the adjacent bearing bars 1 are pivotally mounted in a vertical plane by a stainless steel rivet 15 penetrating the pivot mounting hole 13. In addition, a bent portion 12 that is bent by the plate thickness is formed at one end portion of the link member 11, and the other end portion of the adjacent link member 11 is shifted and overlapped by the plate thickness, These link members 11 as a whole are arranged on the same plane.
[0023]
The stainless steel plate constituting the bearing bar 1 is a relatively thin plate material, and the stainless steel plate of the link member 11 is a relatively thick plate material. The lower edge portion of the link member 11 protrudes on the same plane as the lower edges of the both side wall portions 4 of the bearing bar 1 or downward from the lower edges of the both side wall portions 4. In the case of this embodiment, the lower edge of the link member 11 is disposed on the same plane as the lower edges of the side wall portions 4.
[0024]
The sum of the width of the bearing bar 1 and the interval between the bearing bars 1 is set to 80 mm or less. In the case of this embodiment, the width of the bearing bar 1 is set to 30 mm, and the distance between the bearing bars 1 is set to 14 mm.
[0025]
In the grating as described above, since the bearing bar 1 is rotatably connected by the hinge mechanism 2, when cleaning the drainage groove 7, as shown in FIG. 7 can be opened for easy cleaning and the like.
[0026]
In addition, since the grating is one in which the bearing bar 1 is connected by the hinge mechanism 2, an essentially elastic member such as synthetic resin or synthetic rubber, that is, a member made of a polymer material is not required. Therefore, as described above, all parts can be made of a material such as a stainless steel plate. Therefore, there is no affinity with the organic matter in the waste water, and it is difficult for these stains to adhere and accumulate, and the cleaning is simple, and it is easy to maintain cleanliness.
[0027]
Further, since the link member 11 is provided integrally through the end of the bearing bar 1, the side wall portions 4 on both sides of the bearing bar 1 are connected by the link member 11. Unreasonable load such as bending does not act on the part, and the strength is high.
[0028]
Further, since the lower edge of the link member 11 protrudes on the same plane as or below the lower edges of the side wall portions 4, when this grating is laid in the drainage groove 7, the grooves on both sides of the drainage groove 7 are provided. The link member 11 reliably contacts the edge 8, and most of the load acting on the bearing bar 1 is supported via the link member 11. Therefore, an excessive load does not act locally on the lower edge portions of the side edges 4 of the bearing bar 1 formed of a relatively thin plate as described above, and the lower edges of these side walls 4 It is also possible to prevent the portion from bending and deforming.
[0029]
In addition, since this grating is one in which the bearing bar 1 is connected by the hinge mechanism 2, the connection is more reliable and the displacement of the bearing bar 1 is less than that in the conventional one connected by a wire rope or the like. Less and more stable. However, since these bearing bars 1 are connected via the hinge mechanism 2 as described above, for example, when the groove edge portion 8 is uneven, one bearing bar 1 is independent. Tilt is possible and stability may be impaired.
[0030]
When the bearing bar 1 is tilted in this way, naturally both ends of the link member 11 projecting on both sides thereof move up and down. However, in this embodiment, since the sum of the width of the bearing bar 1 and the gap between the bearing bars 1 is 80 mm or less, when the bearing bar 1 is stepped on the shoe sole, the adjacent bearing bar 1 is always used. Bar 1 is also stepped on this sole. Therefore, since the adjacent bearing bar 1 is fixed by being stepped on the shoe sole, the end portion of the link member 11 cannot move up and down, and the bearing bar 1 does not tilt and is more stable.
[0031]
In general, the minimum width of the shoe sole is about 100 mm. If the result of the test shows that the sum of the width of the bearing bar 1 and the gap is about 80 mm, the two adjacent bearing bars 1 must be Since it is stepped on, the bearing bar 1 is stabilized without tilting as described above.
[0032]
Further, the present invention is not limited to the above embodiment. For example, FIGS. 8 and 9 show a second embodiment of the present invention. In this, the end portions of both side wall portions 4a of the bearing bar 1a are cut and raised to the side to form joining pieces 31, 32, and both end portions of the link member 11a are overlapped and joined to these joining pieces 31, 32. Is. In this embodiment, the joint pieces 31 and 32 are formed with pivot attachment holes corresponding to the pivot attachment holes 13a at both ends of the link member 11a. As shown in FIG. The both ends of 11a and these joining pieces 31 and 32 are alternately overlapped, and these pivoting holes are penetrated and integrally joined and pivotally attached by the rivets 15.
[0033]
Further, the intermediate portion of the link member 11a is bent by the total thickness of the link member 11a and the side wall portion 4a, and these end portions are shifted from each other by the plate thickness and overlapped. The entire member 11a is configured to be disposed on the same plane. The second embodiment has the same configuration as that of the first embodiment except for the points described above. In FIGS. 8 and 9, the same reference numerals are used for portions corresponding to the first embodiment. The description is omitted.
[0034]
In the second embodiment, the joining pieces 31 and 32 and the link member 11a can be overlapped and joined together by the rivet 15a and can be pivotally attached at the same time, and the assembling work is extremely easy. is there. Further, this assembly does not require welding or the like, and has only a simple process of riveting, so that it is easy to manufacture.
[0035]
In addition, this invention is not limited to said embodiment. For example, the structure of the bearing bar is not necessarily limited to the above. In addition, the grating according to the present invention is not limited to a drain for a food factory, and can be used as a grating for various applications.
[0036]
【The invention's effect】
As described above, the winding type grating according to the present invention has a simple structure, is high in strength and is lightweight, and does not require a member made of a polymer material such as a synthetic resin material or a synthetic rubber, which easily adheres to dirt. The effect is great, for example, because the whole can be formed of a material that is less likely to be contaminated with a stainless steel plate or the like and can be easily cleaned.
[Brief description of the drawings]
FIG. 1 is a plan view of a winding type grating according to a first embodiment. FIG. 2 is a cross-sectional view of the winding type grating in a state laid in a drain groove. [Fig. 4] Side view of bearing bar and hinge mechanism portion [Fig. 5] Fig. 5-5 arrow view of Fig. 4 [Fig. 6] Exploded perspective view of bearing bar and hinge mechanism portion [Fig. FIG. 8 is a plan view of the bearing bar and the hinge mechanism of the second embodiment. FIG. 9 is a view taken along arrow 9-9 in FIG.
DESCRIPTION OF SYMBOLS 1 Bearing bar 2 Hinge mechanism 3 Upper wall part 4, 4a Side wall part 11 Link member 14 Fitting notch 15, 15a Rivet 31, 32 Joining piece

Claims (5)

A plurality of bearing bars each having an inverted U-shaped cross section having an upper wall portion and side wall portions on both sides are arranged in parallel with a gap therebetween, and includes a hinge mechanism that flexibly connects both end portions of these bearing bars, under both side walls lower edge of the bearing bars together with the upper Kihi Nji mechanism both ends through transversely over Kibe Aringuba are projected respectively on the side of both side walls of the bearing bar It is provided with an integral link member that projects on the same plane as the edge or below the lower edges of both side wall portions, and both end portions of these link members are pivotally attached to each other. Winding type grating. The winding type grating according to claim 1, wherein the sum of the width of the bearing bar and the gap formed between the bearing bars is 80 mm or less . 2. The winding according to claim 1, wherein a plurality of holes are formed in an upper wall portion of the bearing bar, and peripheral portions of these holes are bent upward and protrude to form a non-slip protrusion . Molding grating. A fitting notch is formed in each of the lower edge portions of the both side walls of the bearing bar, and the link member is fitted in the fitting notches of the both side walls, and the link member and the both side walls are welded. has been that, winding Tokatachi grating of claim 1, wherein the. Bonding pieces are formed on both side wall portions of the bearing bar by cutting and raising a part of each side wall portion, and the link member is overlapped and bonded to these bonding pieces. The winding type grating according to claim 1.

Images