JPH1120824A - Two-stage loading pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pallet which enables articles to be transported to be easily loaded thereon and transported articles to be easily taken out therefrom, and further enables parts to be easily loaded and taken out from the same direction, and which is easily handled even by women, by a construction wherein the bounce-up of an upper stage loading part is made easier in a two-stage loading pallet having an upper stage loading part and a lower stage loading part. SOLUTION: An upper stage loading part 5 is divided into two and formed with loading part structural members 5a, 5b, and these loading part structural members are rotatably supported by installation members disposed among supports 3 provided upright from the circumference of a lower stage loading part 4. Guide grooves 20a, 20b for suitably setting a rotational range of the loading part structural members and locking grooves 21a, 21b for locking the loading part structural members 5a, 5b at predetermined positions are provided at support portions for the installation members and the loading part structural members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-stage pallet used for collectively transporting large objects such as a cooling unit and a blower unit.

[0002]

2. Description of the Related Art Conventionally, as a two-stage pallet used for transporting an article to be transported, as shown in FIG. It has an upper stage B provided above the stage A and capable of mounting a conveyed object. The upper stage A and the lower stage B are one undivided sheet. Each of the floor materials C and D is fixed to a column E so as not to move. However, depending on the pallet, a portion where the upper stage mounting portion B has human power may be used. It can be flipped to the center.

[0003]

However, in the above-mentioned two-stage pallet, since the upper floor plate D is a single undivided floor, the larger the pallet width, the lower the pallet is. The upper mounting portion B becomes a hindrance when being loaded into the cradle, and it becomes difficult to place the transported object behind the lower mounting portion A. Therefore, in the case where the upper stage mounting portion B is fixed, the loading operation of the transported object from the same direction,
Removal work was difficult.

On the other hand, a two-stage pallet capable of flipping the upper mounting portion B can easily load an object to be transported on the lower mounting portion A by flipping the upper mounting portion B. Further, the transported object can be easily taken out from the lower mounting portion A. However, the upper stage mounting portion B has only one floor plate D
Therefore, it has a considerable weight per se, and it is difficult for girls to flip up the upper mounting portion B, and forced labor is required.

Accordingly, in the present invention, the loading and unloading of the transported object is facilitated by facilitating the lifting of the upper mounting portion, and by pulling the component from the same direction.
An object of the present invention is to provide a two-stage pallet that can be easily taken out and can be easily operated by a girl.

[0006]

According to the present invention, there is provided a two-stage pallet according to the present invention, wherein a lower-stage pallet on which an object to be conveyed can be placed, and a pallet provided above the lower-stage pallet to be conveyed. And an upper-stage mounting portion on which an object can be mounted. The upper-stage mounting portion is configured by a two-staged mounting portion constituting member, and these mounting portion forming members are separated from the periphery of the lower-stage mounting portion. A pivot that is rotatably supported by an erecting member provided between the upright supporting columns and that defines a rotation range of the mounting part component at a support portion between the erecting member and the mounting part component. A range defining means and a locking means for locking the mounting member at a predetermined position within the rotation range are provided (claim 1).

Therefore, the upper mounting portion can rotate independently over a range defined by the rotation range defining means, and the two divided mounting portion constituting members constituting the upper mounting portion can be independently rotated by the locking means. Moving position, and the worker loads the transported object onto the lower mounting portion with the upper mounting portion flipped up.
The removal operation can be performed. In addition, since the upper mounting portion can be flipped up with only a force corresponding to the weight of each mounting portion constituent member, the work can be performed with less labor than before.

The rotation range defining means and the lock means rotatably support the mounting member by a support shaft provided on the mounting member, and the mounting member has a locus at an equal distance from the support shaft. A guide groove is provided, a locking groove extending from the guide groove toward the support shaft is provided, and a movable portion for moving the guide groove with rotation is provided on the mounting member, and the support shaft and the movable member are provided. It may be configured such that the distance to the unit can be changed (claim 2).

According to such a configuration, when the mounting member is lifted, the movable portion of the mounting member moves around the support shaft while being guided by the guide groove, and the movable member of the mounting member moves. The whole rotates. Since the mounting member is rotated within the range of the guide groove, the mounting member does not rotate any more if the movable portion contacts the end of the guide groove. In addition, when the mounting member is rotated so that the movable portion faces the locking groove, and the mounting member is displaced so that the movable portion approaches the support shaft portion in this state, the movable portion moves into the locking groove. Are engaged, and the mounting member is fixed at that position.

Here, as a more specific configuration example of the rotation range defining means, an arc-shaped groove having a center angle of about 90 degrees centering on the support shaft portion is formed in the erection member, and this arc-shaped groove is formed. It is conceivable to adopt a configuration in which the movable portion of the mounting portion is inserted through the movable portion and the mounting portion can be rotated from a horizontal position to a vertical position. Further, as a more specific configuration example of the locking means, a locking groove extending toward the support shaft portion is continuously provided at the upper end portion of the arc-shaped groove, and the support shaft portion and the movable portion are provided on the mounting member. A long hole is provided on an imaginary line connecting the shafts, the support shaft portion is loosely fitted in the long hole, and the mounting member is displaced downward along the ellipse with the mounting member being vertical. A configuration in which the portion is guided to the locking groove, and thereby the mounting member is locked in the vertical state is conceivable.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, a two-stage pallet 1 mainly includes a rectangular base 2,
, A lower supporting portion 4 for mounting a transported object, and an upper mounting portion 5 provided above the lower mounting portion 4.

The base 2 is provided with pillar supports 6 at its four corners.
A raised portion formed on the side surface of the column 3 is fitted into a holding recess formed in the column receiver 6 so as to hold the column 3 in the column receiver 6 without play. In addition, each pillar 3
Are rotatably connected to the support 6 and can be displaced up and down. When the raised portion of the support comes off from the holding recess of the support 6, the support can be rotated and folded. It has become. The support 3 may be welded so as not to be displaced with respect to the support 6, or may be directly connected to the four corners of the base without the support 6.

The lower mounting portion 4 is detachably fixed on the base 2 by a suitable means such as a bolt. The lower mounting portion 4 is composed of two mounting member components 4 divided into two equal parts.
a, 4b, each of the placing part constituting members 4a, 4b includes a floor frame and a floor plate 7 fixed to the floor frame.
And a handle 8 erected on the side of the floor frame away from the other mounting member. This handle 8
Is constituted by bending a rod-shaped metal member into a U-shape and welding both ends thereof to a floor frame. Inside the handle 8, a side plate 9 erected along the handle 8 is provided, and the upper center of the side plate 9 is cut out in a rectangular shape to make it easier to hold the handle 8. This lower mounting portion 4
The present invention is not limited to the above-described embodiment, and may be one that is directly welded to the base 2 so as not to be detached, one that is formed of one floor material without being divided into two, or the like.

On the side surface of the pallet 1 where the side plate 9 of the lower mounting portion 4 does not exist, horizontal rods 10 and 11 are horizontally installed at upper and middle portions between the columns 3, respectively. 12 are erected in the vertical direction.
An installation member is constituted by 11 and the holding plate 12. Therefore, the columns connected by the erection members are simultaneously displaced.

The upper mounting section 5 has a 2
It is composed of two equally-placed placing portion constituting members 5a and 5b. Each placing portion constituting member 5a and 5b is composed of a floor frame 14, a floor plate 15 fixed to the floor frame 14, and the other placing portion. It is composed of a handle 16 erected on the side of the floor frame away from the mounting member and connecting plates 17a, 17b erected from the floor frame along the holding plate. Handle 16
Is formed in the same manner as the lower mounting portion 4. A side plate 18 is provided upright along the handle 16 inside the handle 16, and the upper center of the side plate is cut into a rectangular shape to make it easier to hold the handle. ing. The floor plate 15 of the upper mounting portion 5 is
4 or may be separate.

The connecting plates 17a and 17b are provided two by two on each of the placing part constituting members 5a and 5b, and the connecting plate 17a provided on one placing part constituting member 5a and the other placing part are provided. The connecting plate 17b provided on the component member 5b is provided side by side with each other. The connecting plates 17a, 17b and the holding plate 12 facing the connecting plates 17a, 17b are connected at their upper portions, and the holding plate 12 is connected to the connecting plates 17a, 17
The supporting shafts 19a and 19b for rotatably supporting b are provided, and the supporting shafts 19a and 19b constitute a supporting shaft portion.

As shown in FIG. 4, the holding plate 12 is formed with arc-shaped guide grooves 20a and 20b having trajectories equidistant from the support shafts 19a and 19b.
0a, 20b has one end above the support shafts 19a, 19b, and is formed over a range of approximately 90 degrees from the central end thereof, and the respective connecting plates 17a, 17b
The guide grooves 20a and 20b corresponding to b are formed in directions away from each other. The upper ends of the guide grooves 20a, 20b are provided with locking grooves 21a, 2b extending downward therefrom.
1b is subsequently formed.

The connecting plates 17a, 17b and the holding plate 12
The portion of the guide groove 20a, 20b serving as the center of curvature is
9a, 19b, and the mounting member 5a,
5b is configured to be rotatable around the support shafts 19a and 19b. The connecting plates 17a and 17b are provided with movable shafts 22a and 22b at positions separated from the support shafts 19a and 19b by the radius of curvature.
2a and 22b are inserted into the guide grooves 20a and 20b and are slid. The movable shafts 22a, 22b
Is located at the lower end of the guide grooves 20a and 20b in a state in which the placing part constituting members 5a and 5b are horizontal, and is a guide groove in a state where the placing part constituting members 5a and 5b are turned upright and upright. It is provided so as to be located at the upper end of 20a, 20b, and a movable portion is constituted by the movable shafts 22a, 22b.

The support shafts 19a and 19b are fixed without play to the holding plate 12, and the connecting plates 17a and
7b is loosely fitted into the long holes 23a, 23b formed in the connecting plates 17a, 17b,
The connecting plates 17a and 17b are displaced within a range of 23b. The elongated holes 23a and 23b are
a, 19b and the movable shafts 22a, 22b are extended on an imaginary line.
When the connecting plates 17a and 17b are positioned at the upper ends of the guide grooves 20a and 20b, the connecting plates 17a and 17b are inserted into the slots 23a and 23b.
b, the movable shafts 22a, 22b
Can be guided to the locking grooves 21a and 21b.

The support shafts 19a and 19b may be configured as a through hole formed in the holding plate 12 and the connecting plates 17a and 17b.
b through the elongated holes 23a and 23b formed in
As a configuration example of the movable shafts 22a and 22b in which nuts are screwed to the bolts, the bolts are passed through through holes formed in the connecting plate and guide grooves 20a and 20b formed in the holding plate 12. Each of the bolts may be screwed with a nut. In order to eliminate rattling of each axis,
The support shafts 19a and 19b are preferably welded to the holding plate 12, and the movable shafts 22a and 22b are preferably welded to the connecting plates 17a and 17b.

Further, as shown particularly in FIG. 3, when the placing part constituting members 5a and 5b are in a horizontal state in the vicinity of the column, the placing part constituting member 5a , 5b are provided.
The holding rib 25 is formed of a U-shaped bar, and its both ends are joined to the horizontal rod 11 to keep the whole horizontal, and to receive the floor frame 14 of the mounting member 5a, 5b from above. I have. On the other hand, the protruding members 2 protruding in the direction perpendicular to the floor plate are provided on the floor frames 14 of the mounting portion constituting members 5a and 5b.
6 are joined.

The protruding member 26 is provided with the mounting member 5a,
5b is inserted into a portion surrounded by the holding rib 25 when the horizontal member 5b is horizontal.
6 and the holding rib 25, the placing section constituting members 5 a, 5 b
In order to prevent rattling of the placing portion constituting members 5a and 5b, and to position the placing portion constituting members 5a and 5b, or in the event that the support shafts 19a and 19b come off. It is possible to expect effects such as suppression of the mounting member constituting member from jumping out of the pallet.

In the above configuration, in order to manually lift the placing portion constituting member 5a (or 5b) placed in a horizontal state, the user grips the handle 16 toward the side of the pallet 1 and places the placing portion constituting member 5a. Apply upward force to lift 5a (or 5b). Then, the placing section constituting member 5a (or 5)
b) rotates around the support shaft 19a (or 19b), and accordingly, the movable shaft 22a (or 22b) moves along the guide groove 20a (or 20b) (FIG. 4).
(A)). Further, the mounting portion constituting member 5a (or 5)
When the movable shaft 22a (or 22b) is brought into contact with the upper end of the guide groove 20a (or 20b) by rotating the b), the mounting portion component member 5a (or 5b) is turned any more at this time. Not moved. At this time, the connecting plate 17a (or 17
Since the long hole 23a (or 23b) formed in b) is in the vertical direction, the mounting portion constituting member 5a (or 5b)
Is displaced along the elongated hole 23a (or 23b) by its own weight, and the movable shaft 22a (or 22b) is
1a (or 21b) (see FIG. 4B). Therefore, when the movable shaft 22a (or 22b) engages with the locking groove 21a (or 21b), the placing part constituting member 5a (or 5b) is released even if the hand is released from the placing part constituting member 5a (or 5b). Or, 5b) keeps a vertical position without falling.

Conversely, in order to return the mounting member 5a (or 5b) held in the vertical state to the horizontal state, the locking groove 2
In order to disengage the movable shaft 22a (or 22b) engaged with 1a (or 21b), the placing section constituting member 5a (or
5b) is lifted once, and then the guide groove 20a is lifted.
(Or 20b). That is, an operation reverse to the above-described flipping operation may be performed.

Next, the mode of actually using the pallet 1 will be described. As shown in FIG. 5, the pallet 1 is placed on the rotary table 27 at the work site, and the upper-stage mounting member 5a, 5b is set upright. In this state, when the worker stands on one side and performs the mounting operation of the transported object 28, first, the transported object 28 is placed on the lower mounting portion 4 which is the near side as viewed from the operator. Placing (process),
When the loading of this portion is completed, the placing portion constituting member 5a located on the front side from the operator is horizontally lowered, and the transported object 28 is placed on the placing portion 5 in the upper stage (step). After the upper and lower stages on the front side have been placed, the rotary table 27
Is rotated by 180 degrees, and the conveyed object is placed from the lower placing part which comes to the front again (step). Thereafter, the remaining placing part constituting member 5b is horizontally lowered, and the rest is placed on this placing part constituting member. The transported object 28 is placed (step). Thus, the loading operation of the transported object 28 is completed, and thereafter, the pallet may be moved to a desired position by a forklift or the like.

Conversely, in order to take out the conveyed object 28 packed in the pallet, the above-mentioned steps may be performed in reverse.
Remove the transported object from the upper mounting part in front (process),
After the take-out is completed, the placing section component member on the front side is flipped up, and the conveyed article on the near side is taken out from the lower placing section (step). Thereafter, the rotary table is rotated by 180 degrees, and the conveyed object on the upper mounting portion coming again is taken out (process). At the time of completion of the taking out, the remaining mounting member is lifted up. The removal operation is completed by removing the remaining transported objects in the placing section (step).

Therefore, by flipping up the mounting members 5a and 5b, it is possible to secure a sufficient space above the lower mounting portion 4 so that the transported object does not interfere with the upper mounting portion 5. In addition, the work of loading and unloading the transferred object can be facilitated. Also, if the pallet itself has a long depth when viewed from the operator, it is difficult to lift the pallet if the mounting portion constituting member of the upper mounting portion is a single plate. The loading section is divided in the middle, and the loading section component on the front side and the loading component on the back side can be flipped up independently of each other. It can be operated without.

The pallet having the above-described structure is configured such that, after unloading the transported object or when not in use, the upper-stage mounting member 5a,
5b, and, if necessary, the lower mounting member 4
By removing the a and b also, the column 3 can be folded, the volume of the pallet itself can be reduced, the transportation of the empty pallet can be facilitated, and the storage space and storage space of the pallet can be greatly reduced. In the above-described pallet, the surface on which the side plates 9 and 18 are not provided, that is, the surface on which the horizontal rods 10 and 11 and the holding plate 12 are also provided, is provided with the transported object mounted on the mounting portion. A side plate may be additionally provided to prevent falling off.

[0029]

As described above, according to the present invention,
The upper mounting portion of the two-stage pallet is composed of two divided mounting member members, and these mounting member members are rotated by a bridge member provided between the columns standing upright from the periphery of the lower mounting member. A rotation range defining means for freely supporting and defining a rotation range of the mounting member at a supporting portion between the mounting member and the mounting member; and preventing the mounting member from rotating at a predetermined position. And the locking means for fixing the upper mounting portion, the operator only has to lift each mounting member with a force corresponding to the weight of the mounting portion, and use less effort than before. It can be flipped up, and the loading and unloading work of the transported object can be easily performed even by a girl. In addition, since a sufficient space can be secured above the lower mounting portion by flipping the upper mounting portion, even a wide pallet can easily load a conveyed object deep into the lower mounting portion, It can be easily taken out.

The movable range restricting means and the locking means support the mounting member rotatably on the support shaft of the erection member and form a guide groove having a locus equidistant from the support shaft in the erection part. A movable portion for moving the guide groove along with the rotation on the mounting portion constituting member, a locking groove extending toward the support shaft portion is extended from the guide groove, and a distance between the support shaft portion and the movable portion is provided. When the configuration is such that it is possible to change the placement section component, even if each placement section component is vigorously lifted, the placement section component does not move beyond the movable range defined by the guide groove. This can eliminate unexpected movements and excessive displacement of the mounting member, and can improve work safety. In addition, since the position of the mounting member is fixed by the locking means, there is no need to load or remove the transported object while supporting the mounting member by hand, thereby improving the working efficiency.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entirety of a two-stage pallet according to the present invention.

FIG. 2 is a front view of the two-stage pallet shown in FIG. 1 and shows a movement of a placement member of an upper placement portion.

FIG. 3 is a partially enlarged perspective view showing a state in which a mounting member of the upper mounting portion is flipped up.

FIG. 4 is a view showing a relationship between a holding member and a connecting plate of a placing section constituent member, and FIG. 4 (a) shows a state in which the placing section constituting member is horizontal; FIG. 4B shows a state in which the mounting member is in a vertical state.

FIG. 5 is an explanatory view showing steps of a loading operation or an unloading operation of a transported object.

FIG. 6 is a perspective view showing a conventional two-stage pallet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pallet 3 Prop 4 Lower mounting part 5 Upper mounting part 5a, 5b Mounting part constituent member 10, 11 Horizontal rod 12 Holding plate 17a, 17b Connecting plate 19a, 19b Support shaft 20a, 20b Guide groove 21a, 21b Engagement Groove 22a, 22b Movable shaft 23a, 23b Slot 28

Claims (2)

[Claims] An upper stage mounting portion provided above the lower stage mounting portion and capable of mounting an object to be transported, wherein the lower stage mounting portion is provided above the lower stage mounting portion; The upper mounting portion is constituted by two divided mounting member members, and these mounting member members are rotatably supported by a bridging member provided between columns supported from the periphery of the lower mounting portion. And a rotation range defining means for defining a rotation range of the placement section component, at a support portion between the erection member and the placement section component, and the placement section component within the rotation range. And a locking means for locking at a predetermined position. 2. The mounting member is rotatably supported by a support shaft provided on the mounting member, and the mounting member is provided with a guide groove having a locus equal to the support shaft. An anchoring groove extending from the guide groove toward the spindle portion is provided, and a movable portion that moves the guide groove with rotation is provided in the placing portion constituting member, and the spindle portion and the movable portion 2. The two-stage pallet according to claim 1, wherein the distance can be changed.