KR0178383B1 - Synthetic Resin Pallet - Google Patents

Abstract

The present invention relates to a synthetic resin pallet suitable for unloading or rack storage by using a hook lift, and comprises a top column and a bottom deck composed of a support, and a hollow columnar beam connecting the top deck and the bottom deck. In the two-way insert plastic pallet and the four-way insert plastic pallet formed with a hook insertion hole for inserting the hook between the beam and the beam, the upper deck inside the beam along the sides of the support continuous in the central beam portion And a vertical wall connecting the deck with a lower surface, and the upper deck of the hook insertion hole and a support extending from the lower surface deck are connected to the vertical wall, and the synthetic resin pallet has sufficient strength in the unloading operation of the hook. At the same time, the strength of rack storage is increased.

Description

Synthetic Resin Pallet

The present invention relates to a pallet made of synthetic resin, in particular a pallet suitable for unloading or rack storage carried out using a hook lift.

Conventionally, the upper deck and the lower deck are constituted by a glass (hereinafter referred to as a support base), and the upper and lower decks are made of synthetic resin in two directions connected by a hollow column-shaped term (桁: referred to as a beam, hereinafter referred to as a beam). The insertion pallet is provided in the direction in which the upper and lower supports of the hook insertion port are orthogonal to the hook insertion direction, and the support of the beam portion is provided in parallel with the hook insertion direction.

In the case of rack storage of the pallet, as shown in FIG. 15, the hook 69 is inserted into the hook insertion holes 71 and 71 of the pallet 70 and transported, and both ends of the pallet 70 are rails of the rack. It is placed on (72, 72). For this reason, the center part of the pallet 70 will not be supported. Accordingly, the bending moment due to the load of the article acts on the pallet 70.

In the conventional pallet 70, a support perpendicular to the hook insertion direction provided above and below the hook insertion ports 71 and 71 exerts a drag force against the bending moment. On the other hand, since the support of the beam portion is provided in parallel with the hook insertion direction, it does not exert a drag against the bending moment.

In this conventional pallet 70, since the support perpendicular to the hook insertion direction is provided only in the hook insertion opening, the drag force against the bending moment is insufficient.

For this reason, in the conventional synthetic resin two-way inserting pallet, there is a problem that the strength during rack storage is insufficient.

Moreover, in the conventional 4-way insertion pallet made of synthetic resin, the support which comprises the upper surface or lower surface of a pallet center part beam consists of only the support stand extended in the same direction. For this reason, as is apparent from FIG. 16 showing the central beam 73 portion in cross section, the support 75 for cutting the central beam 73 laterally and the beam wall 74 parallel to the support 75 are shown. The opening part 76 is formed between and ().

Therefore, when loading the load on the conventional four-way insertion pallet made of synthetic resin, or when the rack is stored by supporting both sides of the pallet parallel to the support 75, the beam wall 74 of the center beam 73 portion is deformed and Larger deflection may occur and, in some cases, breakage.

The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a synthetic resin pallet that has sufficient strength in loading and unloading hooks and also has sufficient strength during rack storage.

1 is a plan view showing a pallet of a first embodiment of the present invention.

2 is a front view of the pallet.

3 is a partial plan view briefly shown to help understand FIG.

4 is a cross-sectional view taken along the line I-I of FIG.

5 is a cross-sectional view taken along the line II-II of FIG.

6 is a sectional view taken along line III-III of FIG.

7 is a plan view showing a pallet of a second embodiment of the present invention.

8 is a front view of the pallet.

9 is a cross-sectional view taken along the line VI-VI of FIG.

FIG. 10 is a cross sectional view along line VII-VII of FIG. 7;

11 is a cross-sectional view taken along the line VIII-VIII of FIG.

12 is a cross-sectional view taken along the line X-X of FIG.

13 is a cross-sectional view taken along the line XI-XI of FIG.

FIG. 14 is an enlarged view of the central beam portion of FIG. 7.

FIG. 15 (a) and FIG. 15 (b) are diagrams illustrating a state in which a pallet is stored.

16 is a schematic cross-sectional view for explaining the problem of a conventional pallet.

* Explanation of symbols for main parts of the drawings

1: top deck 2: back deck

3,4,5: columnar beam 6: hook insertion hole

7,17: Lateral support 8,18: Longitudinal support

9,19: auxiliary lateral support 13,14,15: auxiliary wall

23,24,25,26: Corner beam 27,28,29,30: Medium beam

31,73: center beam 32,33: hook insertion hole

34,35,36: Support 35A, 36A: Connecting support

35B, 36B: Speech support 38,39,40: Vertical wall

42: hole 50: opening

51: (Central Beam) Wall 69: Hook

70: pallet 71: hook insertion hole

72: rail 74: beam wall

75: support 76: opening

The present invention for this purpose is a synthetic resin pallet is a top deck and bottom deck composed of a support, and a beam beam on the hollow pillar connecting the top deck and the bottom deck, hook insertion hole for inserting the hook between the beam and the beam is formed In the two-way inserted plastic pallet and the four-way inserted plastic pallet, vertical walls connecting upper and lower decks are formed inside the beam along both sides of the continuous support in the central beam, and the vertical wall is formed on the vertical wall. The upper deck of the hook insertion port and the support extending from the lower deck is characterized in that the connection.

Hereinafter, the synthetic resin pallet of the present invention through examples.

Example 1

1 to 6 show a first embodiment of the present invention.

This pallet is made of synthetic resin.

As shown in FIGS. 1 to 3, the pallet is provided with columnar beams (3, 4, 5) connecting the upper deck (1), the lower deck (2), and the upper and lower decks (1, 2). It is roughly composed by.

The beams 3, 4 and 5 are rectangular in cross section. Moreover, the inside of the beams 3, 4 and 5 is a cavity. Between the beams 3, 4 and 5, hook insertion openings 6 and 6 for inserting the hooks are formed.

The upper deck 1 and the lower deck 2 are comprised by the support stand. Among the supports constituting the upper deck 1, the supports provided on the hook inserts 6 and 6 are lateral supports 7 in a U-shaped downward cross section, as shown in FIG. Among the supports of the lower deck 2, the support provided below the hook insertion opening 6 and 6 is the horizontal support 17 of an upward cross-section U shape.

These lateral supports 7 and 17 are provided at regular intervals. These horizontal supporters 7 and 17 are arrange | positioned in the horizontal direction so that they may not overlap. Moreover, these horizontal supporters 7 and 17 are provided in the direction orthogonal to a hook insertion direction (arrow X direction).

As shown in FIG. 4, the upper end of the beams 3, 4 and 5 of the upper deck 1 is provided with a longitudinal support 8 having a downward cross-section U shape. The lower deck 2 is provided with a longitudinal support 18 having an upward cross-section U shape. These longitudinal supports 8 and 18 are arrange | positioned so that they may not overlap. Moreover, these longitudinal supporters 8 and 18 are provided along the hook insertion direction (arrow X).

As shown in FIGS. 3 and 4, the transverse supports 7, 17 extend beyond the outer walls of the beams 3, 4, 5 connecting the top deck 1 and the bottom deck 2. The support from the upper deck 1 and the lower deck 2 of the hook insertion port extends to form the auxiliary transverse supports 9 and 19. The extended support is connected to a vertical wall inside the beam.

As shown in FIG. 4, the auxiliary walls 13, 14, and 15 are provided at the ends of these auxiliary transverse supports 9 and 19 vertically from the top deck 1 toward the bottom deck 2. . These auxiliary walls 13, 14 and 15 are provided in parallel with one wall of each of the beams 3, 4 and 5, that is, the wall facing the hook insertion holes 6 and 6.

Here, the hole 10 opened in each support 7, 8, 9, 17, 18, 19 is a water removal hole.

The pallet has lateral supports (7, 17) orthogonal to the hook insertion direction (X) of the upper and lower surfaces of the hook insertion holes (6, 6) connected to the beams (3, 4, 5) near both sides thereof. Since there are auxiliary lateral supports 9 and 19 provided, the durability against the bending moment applied when storing both ends of the pallet on the rails 72 and 72 of the rack is greatly improved. Therefore, the pallet can be made of a synthetic resin two-way inserting pallet that is sufficiently large not only in bending strength at the time of rack storage but also at the time of the unloading operation by the hook.

Furthermore, since the auxiliary walls 13, 14, and 15 are connected to the ends of the auxiliary transverse supports 9 and 19, the pallet is more durable against the bending moment. Therefore, this pallet becomes excellent in strength.

Example 2

7 to 14 show a second embodiment of the present invention.

This pallet is of a four-way insertion type which can insert hooks in four directions.

The pallet of the present embodiment is roughly constituted by the upper deck 1, the lower deck 2, the edge beams 23, 24, 25, 26, the middle beams 27, 28, 29, 30, and the center beam 31. It is.

As shown in FIG. 13, each of the beams 23-31 is formed in the form of a hollow column. The upper and lower ends of these beams 23-31 are integrally coupled to the respective supports that make up the upper deck 1 and the lower deck 2. In addition, the hook insertion holes 32, 32, 33, 33 are formed between these beams 23-31.

As shown in FIG. 7, the upper deck 1 is comprised by the support stand of the longitudinal direction or the lateral direction. Of the support deck of the upper deck 1, four quadrangular portions intersecting the hook insertion holes 32, 32, 33, and 33, and the support 34 provided on the upper surface of the inlet of the hook insertion holes 32, 32, 33, 33 are It is a grid. Moreover, the cross-sectional shape of these support stands 34 is square. The support 35 provided in other parts is a downward cross-sectional U shape, as shown to FIG. 9-11. These support stands 35 are provided at intervals.

The lower deck 2 is formed with a large opening 50 located at the intersection of the hook insertion holes 12, 13, as shown in FIG. As a result, the wheel of the hand lifter can be grounded to the floor or the ground when the pallet is conveyed using the hand lifter. Portions other than the opening portion 50 of the lower deck 2 are formed of a support base 36. The support base 36 is formed in an upward U shape in cross section. Moreover, the support stand 36 is provided in the arrangement which does not overlap with the support stand 35 of the said top deck 1. As shown in FIG.

As shown in FIGS. 7, 9, 10, and 14, the supports 35, 36 provided between the recesses 27-30 and the center beam 31 of the supports 35, 36. Is provided in the direction orthogonal to the hook insertion direction (arrow X, Y) of the hook insertion ports 32, 32, 33, 33. As shown in FIG. Of these supports (35, 36), the support (35, 36) above and below one of the hook insertion holes (32, 32) extends beyond the outer wall of the central beam (31) connecting the upper deck (1) and the lower deck (2). Inside the beam, the support from the upper deck 1 and the lower deck 2 of the hook insertion port extends to form connecting supports 35A and 36A which transverse the center beam 31. The extended support is connected to a vertical wall inside the beam. In addition, the upper and lower supports 35 and 36 of the other hook insertion holes 33 and 33 of the supports 35 and 36 have a center beam 31 connecting the upper deck 1 and the lower deck 2 to each other. Beyond the outer wall and inside the beam, the supports from the upper deck 1 and the lower deck 2 of the hook insertion port extend near the connecting supports 35A and 36A to form the speech supports 35B and 36B.

As shown in FIG. 9, vertical walls 38 and 39 for reinforcement are provided between the tip of the speech support 35B and the tip of the speech support 36B. These vertical walls 38 and 39 are provided in parallel with the connecting supports 35A and 36B. Further, as shown in FIG. 10, reinforcing vertical walls 40 and 41 are provided between these vertical walls 38 and 39. FIG. In the drawing, reference numeral 42 denotes a water removal hole, and reference numeral 51 denotes a reinforcing rib.

The four-way insertion pallet made of synthetic resin includes both the supports 35 and 36 above and below the one-way hook insertion holes 32 and 32 and the supports 35 and 36 above and below the hook insertion holes 33 and 33 in the other directions. (A) Since the bending caused by the load is extended in the inner direction of the center beam 31, that is, the connection beams 35A, 36A and the speech support 35B, 36B are provided on the center beam 31, The durability against bending moments in both the width direction and the longitudinal direction of the pallet is greatly improved. Therefore, this pallet becomes the 4-way insertion pallet made from synthetic resin which was excellent in the bending strength at the time of rack storage, and the strength at the time of unloading by a hook.

In the four-way insert pallet made of synthetic resin, the upper and lower supports of the center beam 31 in which the bending due to the load is maximized are constituted by the supports 35A, 35B, 36A, and 36B in two directions. Since the vertical walls 38 and 39 are provided at the ends of the speech supports 35B and 36B partially installed in the inner direction of the beam 31, the stress caused by the load is internal from the wall 50 of the central beam 31. It is transmitted to the vertical walls 38 and 39 via the speech supports 35B and 36B struck in the direction, so that the deformation of the wall 50 of the central beam 31 due to the load can be prevented. It is possible to reduce the warpage of the wall 50 so that the pallet can be used safely.

In addition, the pallet is provided with a lattice-like support 34 in the upper deck 1 at the opening 50 portion of the lower deck 2, and is provided so as not to overlap the cross-shaped U-shaped supports 35 and 36 in the other portions. As a result, large rigidity can be obtained with a small weight. Therefore, this pallet can increase the strength without adding material and causing cost increase.

The pallet of the present invention can be integrally molded by an injection molding method using a fixed mold, a moving mold, and a slide core.

In the pallet of the present invention, since the support provided on the upper and lower hook insertion ports is extended beyond the outer wall of the beam connecting the upper deck and the lower deck, the support is extended inside the beam, so that both ends of the pallet are placed on the rail of the rack and stored. The durability against the bending moment is greatly improved. Therefore, this pallet becomes a synthetic resin pallet with sufficient bending strength at the time of rack storage and strength at the time of unloading by a hook.

In addition, since the support of the pallet of the present invention extends beyond the outer wall of the beam located at both sides of the hook insertion hole, the above effects can be sufficiently obtained.

The pallet of the present invention is that both the support above and below the hook insertion hole in one direction and the support above and below the other hook insert extend beyond the outer wall of the center beam where deformation by load is maximized, ie Since the connecting beam and the speech support are provided in the center beam, the durability of the bending moment is greatly improved in both the width direction and the longitudinal direction of the pallet. Therefore, such a pallet can be made into a synthetic resin 4-way inserting pallet which is excellent in bending moment strength during rack storage and the strength of the unloading operation by the hook.

In addition, since the pallet of the present invention is a vertical wall connecting the front end of the speech support is installed in parallel with the connection support, the stress due to the load is transmitted to the vertical wall via the speech support in the inward direction from the wall of the center beam. It is possible to reduce the deformation and warpage of the wall of the center beam due to the load. Therefore, this pallet becomes the synthetic resin 4-way insertion pallet which can be used safely, without damaging the wall of a center beam.

Claims (1)

Two-way inserting plastic pallet and four directions, consisting of a top deck and a bottom deck composed of a support, a hollow columnar beam connecting the top deck and the bottom deck, and a hook insertion hole for inserting a hook between the beam and the beam. In the insert synthetic resin pallet, vertical walls connecting upper deck and lower deck are formed inside the beam along both sides of the continuous support in the center beam, and the vertical wall is formed from the upper deck and the lower deck of the hook insertion hole. A pallet made of resin, characterized in that an extended support is connected.

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