JP2007239328A - Galvanized pallet for multistory parking garage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high quality pallet for a multistory parking garage to which galvanizing is applied by eliminating a slight deformation produced in a tire traveling plate. <P>SOLUTION: In this pallet A, a pair of reinforcement plates 6 with a predetermined length are secured, by tack welding, to a reverse V-shaped center ridge 4 through legs 3 at symmetrical positions in the rear lateral direction. Crossing beam materials 5 are fixedly welded to both ends of the pallet and both ends of the reinforcement plate 6. By using the pallet in which deformation produced in the center raised line 5 and its vicinity is eliminated, the tire traveling plate 2 is formed in a reverse-V shape by a gentle slope with a peak inclination angle of 3° at the lateral center. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a zinc plating pallet for a multi-story parking lot, which is made of a thick-walled steel panel and subjected to hot dip galvanizing.

  This type of galvanized pallet for multistory parking lots is generally equipped with a central ridge that is bent and raised from the surface in a band shape for the purpose of reinforcement and draining at the center in the width direction. Yield due to significant strain deformation at the end of the pallet in the longitudinal direction, especially the central ridge or the tire travel plate, which is considered to be caused by the temperature difference during the pulling from the hot dip galvanizing tank. Since the surface treatment of the pallet has shifted to spray coating that requires maintenance and the zinc plating is not being used, the applicant is required to reduce the yield of zinc plating. On the surface via side frames on both sides in the direction, a pair of tire travel plates disposed on both ends in the width direction between the side frames, and legs that are bent and raised in a belt-like manner on both sides of the intermediate position between the side frames. Levitated length A central ridge formed by a gently sloping surface with an inverted V-shaped cross-section that has a wide band in the full length direction and has a center in the width direction as a peak position and is gently inclined from the peak position to both sides in the width direction. The cross section of the central ridge between the four beams in the longitudinal direction and the beam in the middle in the longitudinal direction, which are in contact with the bottom surface in a non-contact state with the central ridge and welded to the side frames on both sides in the width direction A pair of reinforcing plates in the width direction symmetrically arranged in the longitudinal direction at the intermediate position in the width direction by applying intermittent welding at a predetermined pitch to the back surface of the reverse V-shaped gently inclined surface; A symmetric pallet has been proposed in which the thickness of the reinforcing plate and the beam is within twice the thickness of the steel plate panel.

Japanese Patent No. 3614842

  With this pallet structure, it is possible to completely eliminate the distortion of the central ridge including the longitudinal end due to the zinc plating or the distortion in the vicinity thereof. At the same time, it has attracted attention as an opportunity to revive zinc plating that does not require maintenance.

  However, on this pallet, the tire travel plate is of such a level that it can be recognized by a slight gaze in the plane at the middle position in the longitudinal direction of the flat tire travel plate located on both sides of the central ridge. There are cases where distortion occurs at a plurality of points crossing the line. For example, when the tire traveling plate is viewed from an oblique direction so that the tire traveling plate receives light reflection at the end portion in the longitudinal direction, the distortion of the pallet is reduced to such an extent that the light reflection is visually distorted. It conforms to the standards and therefore does not cause product defects or reduce yield, but the high-quality pallet made of zinc plating is seen from the fact that the central ridge or the distortion around it has been eliminated. It is desirable to solve this point in order to provide

  The present invention has been made in view of such circumstances, and the problem to be solved is to eliminate the slight distortion that may occur in the plane of the tire traveling plate of the pallet from which the distortion of the central ridge is eliminated. The purpose is to provide high-quality galvanized pallets for multistory parking lots.

  As a result of diligent examination along the above-mentioned problems, in the pallet in which the central ridge or the distortion in the vicinity thereof has been eliminated, the tire traveling plate is gently inclined depending on the angle and arranged in an inverted V-shaped cross section symmetrically in the width direction. By forming a surface and arranging the above-mentioned gentle slope with a low elevation on the top surface of the pallet, the drainage of the tire traveling plate is secured, and a number of beams crossing the back surface are processed. The complexity and the possibility of distortion recurrence due to the processing can be avoided, and the inclination angle of the gentle inclination is from 0.3 ° to 5 ° with respect to the horizontal plane (179.7 to 175 ° as the inner angle of the central peak portion) ) To suppress the above-described distortion in the tire travel plate surface that occurs when the angle is less than 0.3 °, and to suppress the generation of tire squeaking noise when entering and leaving the vehicle that is greater than 5 °. Knowledge As a result, the present invention has been carried out, that is, a pair of tire traveling plates in which the invention according to claim 1 is disposed on both side frames in the width direction and on both ends in the width direction between the side frames. And a longitudinal full length wide band that floats on the surface via a slanted and bent leg on both sides of the intermediate position between the side frames, and the width direction from the peak position to the width direction center. A central ridge formed by an inclined surface having an inverted V-shaped cross-section that is gently inclined on both sides, and side frames on both sides in the width direction that are in contact with the bottom surface in a non-contact state with the central ridge at both longitudinal ends and in the middle in the longitudinal direction. By applying intermittent welding at a predetermined pitch to the back surface of the inversely V-shaped gently inclined surface of the cross section of the central ridge between the four beams in the longitudinal direction welded to each other and crossed in the longitudinal direction. Down in the longitudinal direction to the middle position in the width direction A pair of reinforcing plates arranged in a width direction symmetrically arranged in a vertical direction, and the pair of tires running in a width direction symmetrical pallet in which the thickness of the reinforcing plate and the beam is within twice the wall thickness of the steel plate panel The plate is formed between the side frame and the central upright strip by a slanting surface symmetrical in each width direction, with the center in the width direction as a peak position, gently sloping from the peak position to both sides in the width direction, and a low elevation in a cross-shaped inverted V shape. At the same time, the angle of the gently inclined surface is an angle of 0.3 ° to 5 ° with respect to the horizontal plane.

  In addition to the above, in the invention according to claim 2, when the inclination angle of the gently inclined surface of the tire traveling plate is less than 2 °, the distortion tends to occur slightly in the surface. On the other hand, if the angle exceeds 4 °, tire squeaking noise at the time of entering and leaving the vehicle tends to be generated particularly in a heavy vehicle. Therefore, the angle is 3 ± 1 ° (176 ° as the inner angle of the central peak portion). ˜178 °) is effective in reliably preventing both the occurrence of distortion and the generation of stagnation noise and making it a higher quality pallet. The galvanized pallet for a multilevel parking garage according to claim 1, wherein an inclination angle of the inclined surface is 3 ± 1 °.

  The present invention uses each of these as the gist of the invention as means for solving the above problems.

  Since the present invention is configured as described above, the invention according to claim 1 is a pallet in which the distortion of the central ridge or its vicinity is eliminated, and the tire traveling plate is gently inclined at a small angle in the width direction. By forming a symmetrically arranged inclined surface and arranging the above-mentioned gentle inclination with a low elevation on the upper surface of the pallet, the drainage of the tire traveling plate is ensured, and a large number of beams crossing the back surface are provided. By avoiding the complexity of processing the receiving part and the possibility of distortion recurrence due to the processing, the inclination angle of the gentle inclination is 0.3 ° or more and 5 ° or less with respect to the horizontal plane, Suppression of the above-mentioned distortion in the tire traveling plate surface that occurs when the angle is less than 0.3 ° is suppressed, and generation of tire squeaking noise at the time of vehicle entry / exit that is generated when the angle exceeds 5 ° is suppressed. Pallet that solved To eliminate the slight distortion sometimes occurs in tire running board plane can provide a high-quality three-dimensional parking galvanized pallet.

  In addition to the above, in the invention according to claim 2, when the inclination angle of the gently inclined surface of the tire traveling plate is less than 2 °, the distortion tends to occur slightly in the surface. On the other hand, if the angle exceeds 4 °, tire squeaking noise at the time of entering and leaving the vehicle tends to be generated particularly in a vehicle having a relatively heavy weight. Therefore, the angle is set to 3 ± 1 °. In addition, it is possible to reliably prevent both stagnation and generation of a higher quality pallet.

  In the following, the present invention will be described in more detail with reference to the example of the drawings. A is used for a multilevel parking garage, and a high level of corrosion resistance is secured by applying zinc plating. This galvanized pallet eliminates the need for maintenance such as repainting every time. The pallet A includes a side frame on both sides in the width direction and a pair of tire traveling plates 2 disposed on both ends in the width direction between the side frames 1. And a wide band in the longitudinal direction that is floated and arranged on the surface via a leg 3 that is inclined and bent up on both sides of the intermediate position between the side frames, and has a width from the peak position with the center in the width direction as a peak position. A central ridge 4 formed by a gently inclined surface with an inverted V-shaped cross section gently inclined on both sides in the direction, and both sides in the width direction in contact with the bottom surface in a non-contact state with the central ridge at both ends in the longitudinal direction and in the middle in the longitudinal direction Welded to the side frame of the cross The width of the four beams 5 in the longitudinal direction and the width of the center ridge 4 between the beams 5 in the longitudinal direction by intermittent welding at a predetermined pitch on the back surface of the reversely inclined V-shaped section of the central ridge 4. And a pair of reinforcing plates 6 in the width direction symmetrically arranged in the longitudinal direction at the middle in the direction, and the thickness of the reinforcing plate 6 and the beam 5 is within twice the thickness of the steel plate panel. It is symmetrical in the width direction.

  That is, in this example, the pallet A has a length of about 5 to 6 m and a width of about 2 m, and the tire running plates on both sides of the width of about 2 m are about 60 cm, which is less than 1/3 of the width, The central ridge is set to about 70 cm, which is a little more than 1/3 of the width. For example, a thick steel plate with a thickness of about 3 to 5 mm is pressed and both ends in the width direction are raised, and about 5 cm on one side of the rising portion The width is set to be a plane rectangle in which the side frames 1 on both sides are arranged to be symmetrical in the width direction.

  The central ridge 4 is wide from the surface of the pallet A so as to extend over the entire length in the longitudinal direction of the pallet A through the leg 3 that is steeply inclined, for example, about 45 degrees and bent upward with a width of about several centimeters. In the present example, the slant angle of the central ridge 4 is 5 ° with respect to the horizontal plane. It is set to about ° (the inner angle of the central peak portion is 175 °), and the peak position is placed at the center in the width direction of the pallet A, and the cross section is arranged in an inverted V shape symmetric in the width direction. Incidentally, the inclination angle of the gently inclined surface of the central ridge 4 is preferably in the range of 2 to 20 ° (178 to 160 ° as the internal angle of the central peak) with respect to the horizontal plane. When pulling up from the zinc plating tank, the central ridge 4 or its vicinity tends to be distorted, and in order to prevent distorted deformation, it is particularly 3 to 7 ° (the inner angle of the central peak portion is 177 to 173). °) is preferable. At this time, it is desirable that the leg 3 has an inclination angle of about 30 ° to 60 ° or less with respect to the horizontal plane, and if it exceeds these ranges, the central ridge 4 or the vicinity thereof will be distorted. A tendency tends to occur, and it is particularly preferable to set the angle to 40 ° to 50 °.

  The beam 5 is crossed by using a total of four in the longitudinal direction both ends and in the middle of the pallet A. In this example, the beam 5 is formed into a hollow pipe material, for example, a square or rectangular cross section. A hollow pipe material having a straight line with the same width as that of the pallet A is used. The crossing arrangement makes the beam 5 not in contact with the leg 3 and the central ridge 4 and in contact with the bottom surface of the pallet A. In this way, the welding is performed by welding to the side frames on both sides of the steel plate panel A in the width direction.

  The reinforcing plate 6 uses, for example, a pair of thin and long steel plates having a length of about ½ of the pallet A, and is disposed at the back position displaced from the center in the width direction of each inclined surface 2 of the central ridge 4 to the peak position side. Between the intermediate beams 5 of the pallet A so as to be symmetric in the width direction with respect to the peak position, the reinforcing plate 6 is erected downward in parallel and perpendicularly to the longitudinal direction of the pallet A. The standing arrangement is intermittently welded by performing tack welding-like main welding on the back surface of the pallet A. In this example, the intermittent welding is performed by, for example, welding a 3 cm long weld with a 20 cm long space. It is assumed that it was performed at a predetermined pitch so as to be opened. Incidentally, if welding of the reinforcing plate 6 is performed over the entire length by wire welding, it is necessary to use intermittent welding because it tends to cause distortion in the central ridge 4 or its vicinity when pulled up from the molten zinc plating tank. In addition, the intermittent welding may be made by alternately arranging the relatively short welds and the relatively long gaps in the longitudinal direction. The combination is preferably within about 30 cm, preferably within about 3.5 cm of the welding length, and within about 25 cm of the spacing space.

  At this time, the thickness of the beam 5 and the reinforcing plate 6 must be within twice the thickness of the steel plate panel. If the thickness exceeds twice the thickness of the steel plate panel of the pallet A, When pulling up from the hot dip galvanizing tank, the central ridge 4 or its vicinity tends to be distorted, and the thickness of the reinforcing plate 6 and the beam 5 is reduced to the pallet A, that is, the steel plate panel thickness. It should be equal to or less than about twice the thickness of the thickness, preferably about 1.5 times or less. In this example, the beam 5 is, for example, about 1.1 times the thickness of the steel plate panel of the pallet A, That is, the thickness is 3.2 mm, and the reinforcing plate is 1 time, that is, 3 mm.

  In the pallet A formed as described above, the pair of tire travel plates 2 is further formed between the side frame 1 and the central upright strip 4 in the same width direction from the peak position to both sides in the width direction. Inclined at an angle of 0.3 ° or more and 5 ° or less with respect to the horizontal plane. As a result, a slight gazing may occur in the plane of the intermediate position in the longitudinal direction of the pair of tire traveling plates 2 of the pallet A from which the distortion of the central ridge 4 at the longitudinal end or the vicinity thereof is eliminated. Then, the occurrence of distortion that can be recognized is eliminated, and the pallet A is of a high quality that cannot visually observe the distortion.

  In other words, the pair of tire traveling plates 2 are formed in a central bulge in which the cross section has an inverted V-shaped cross section by a gently inclined surface and the inclined angle of the gently inclined surface is 2 to 20 °. In this example, the inclination angle of the inclined surface is 3 ± 1 °, particularly 3 °.

  At this time, the inclined surface of the integrated tire traveling plate having the inverted V-shaped cross section is subjected to the pressing process at the same time at the time of the pressing process, so that the peak is centered in the width direction of each tire traveling plate 2. At this position, the pallet A is formed so as to protrude low and upward at the same angle over the entire length in the longitudinal direction. At this time, the inclined surface can be arranged so as to protrude downward, for example, but if it protrudes downward, the four beams installed for preventing distortion of the central ridge 4 or the vicinity thereof. When the beam 5 intersects with the beam 5, it becomes necessary to take a measure such as arranging a notch portion so as to form a receiving portion of the beam 5, and the strength of the beam 5 is reduced to prevent distortion of the central ridge 4 or the vicinity thereof. By avoiding the possibility of impairing the effect, the above-mentioned upward direction eliminates the slight distortion of the tire traveling plate 2 at the same time as the beam 5 and the central ridge 4 by the beam 5 or the distortion preventing effect in the vicinity thereof. Moreover, it is made to be able to prevent rain water from accumulating on the tire traveling plate 2 in the same manner as the central ridge 4 by making it face upward at the same time.

  The inclination angle of the gently inclined surface can be a small inclination angle of 0.3 ° or more and less than 2 °, and should be the same as the inclination angle of the central ridge 4 of 5 ° or less. However, in general, it is preferable to form it with a gentler slope than that of the central ridge 4, and it is particularly preferable to have the above 3 ± 1 °.

  That is, when the tire traveling plate 2 is made flat as in the conventional case, the above slight distortion occurs. However, the inclination angle of the tire traveling plate 2 with the peak at the center position is set to a slight inclination angle of 0.3 °. This effect of preventing distortion can be obtained by the above, but since the effect of preventing distortion cannot be obtained below this value, it is necessary to avoid the inclination angle being less than 0.3 °. In addition, by setting the inclination angle to a gentle inclination angle of 5 °, the same distortion prevention effect can be obtained, but if it exceeds this, tire squeaking noise will be generated when the vehicle is moved in and out, and the surroundings will feel uncomfortable. Therefore, it is necessary to avoid the inclination angle exceeding 5 °. Further, if the inclination angle is less than 2 °, the above-described distortion tends to occur in the plane of the tire traveling plate 2, and if the inclination angle exceeds 4 °, the tire squeaking noise is generated particularly in a heavy vehicle. Therefore, the inclination angle is preferably 3 ± 1 °.

  The pallet A formed as described above extends over the entire surface of the pallet A including the in-plane of the tire traveling plate 2 even if the galvanizing process is performed by immersing in a hot dip galvanizing tank having a temperature of about 450 ° C. Therefore, the occurrence of distortion that can be visually observed can be prevented, and the pallet A can be made extremely high quality.

  In the figure, reference numeral 7 denotes a mounting plate made of steel for supporting columns that is welded and arranged on the side frame 6 in the pallet A of this example, 8 is a vehicle stopper mounting material that is also welded and arranged on the surface side of the pallet A, and 9 is a vehicle stop position. In this example, the attached steel members such as the mounting plate 7 and the vehicle stopper mounting material 8 that are welded and fixed to the pallet A also have the thickness of the steel plate of the pallet A. When the thickness of the attached steel members exceeds twice the thickness of the pallet A as in the case of the reinforcing plate 6, beam 5, etc. Similarly, it tends to cause distortion in the central ridge 4 or its vicinity when it is pulled up, and it is also preferably equal to or less than about twice the thickness of the pallet A, preferably about 1.5 times or less. .

  Although the illustrated example is as described above, in the practice of the present invention, the specific structure, material, shape, dimensions, etc. of the pallet, central ridge, tire traveling plate, reinforcing plate, beam, attached steel member, etc. These relationships, additions to these, and the like can be in various forms as long as they do not contradict the gist of the invention.

It is a partially cutaway partial perspective view of a pallet. It is a top view of a pallet. FIG. 2 is a vertical sectional view taken along line AA in FIG. 1. It is an enlarged vertical sectional view of a tire travel plate portion.

Explanation of symbols

A Zinc plating pallet 1 Side frame 2 Tire running plate 3 Leg 4 Central raised strip 5 Beam 6 Reinforcement plate 7 Mounting plate 8 Vehicle stopper mounting material 9 Travel prevention pipe

Claims (2)

  Surfaces through side frames on both sides in the width direction, a pair of tire traveling plates disposed on both ends in the width direction between the side frames, and leg portions that are bent and raised in a belt-like manner on both sides of the intermediate position between the side frames. A central ridge formed by an inclined surface with an inverted V-shaped cross-section that has a wide band in the longitudinal direction that is levitated in the longitudinal direction and has a center in the width direction as a peak position and is gently inclined from the peak position to both sides in the width direction; And four beams in the longitudinal direction, which are in contact with the bottom surface in a non-contact state with the central ridge in the middle in the longitudinal direction and welded to the side frames on both sides in the width direction, and the center between the beams in the middle in the longitudinal direction A pair of reinforcing plates in the width direction symmetrically arranged in the width direction intermediate position by being intermittently welded at a predetermined pitch to the back surface of the gently inclined surface having an inverted V-shaped cross section of the ridges, and standing vertically downward in the longitudinal direction; With In a pallet symmetrical in the width direction where the thickness of the reinforcing plate and the beam is less than twice the wall thickness of the steel plate panel, the pair of tire travel plates are located at the peak position in the center in the width direction between the side frame and the central stand. As shown in the figure, each of the inclined surfaces is formed with a slanting surface symmetric in each width direction and gently inclined to both sides in the width direction from the peak position and bulged in a reverse V shape in cross section. A galvanized pallet for multi-story car parks, characterized by an inclination angle of not less than 5 ° and not more than 5 °. The zinc plating pallet for a multilevel parking garage according to claim 1, wherein an inclination angle of the gently inclined inclined surface in the tire traveling plate is 3 ± 1 ° with respect to a horizontal plane.

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