JP2022041012A - Work carrying palette - Google Patents

Abstract

To provide a workpiece carrying palette capable of stably conveying drum type work in a horizontal posture.SOLUTION: A work carrying palette 1 comprises: a pallet main body 2 formed in a tray-like shape; a receiving part 3 which is prepared on the pallet main body 2, and places a drum type workpiece W such that an end face thereof is oriented in a longitudinal direction; and stoppers 4 which are placed on a front side of the receiving part 3 and restrict forward movement of the workpiece W placed on the receiving part 3. The receiving part 3 has right and left receiving faces 16. These receiving faces 16 are inclined so as to face each other. The stopper 4 is configured to be retractable from a movement pathway when slide-moving the workpiece W along the receiving face 16.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a work transport pallet used when a work is transported in a factory, a distribution warehouse, or the like.

As a work transfer pallet used when transporting a work, a tray-shaped one is known. When a drum-shaped work is conveyed by such a work transfer pallet, the work is mounted on the work transfer pallet with its end face facing downward.

Japanese Unexamined Patent Publication No. 2015-307827

By the way, when the drum-shaped work is assembled in a lateral posture (a posture in which the end face is oriented in a substantially horizontal direction), the work must be rotated by about 90 degrees at the time of assembly, which is complicated.

Therefore, the present disclosure has been devised in view of such circumstances, and an object thereof is to provide a work transport pallet capable of stably transporting a drum-shaped work in a sideways posture.

According to one aspect of the present disclosure, a tray-shaped pallet body and
A receiving portion provided on the pallet body on which a drum-shaped work is placed so that its end face faces in the front-rear direction.
It is provided with a stopper for receiving the front end, which is arranged in front of the receiving portion and restricts the forward movement of the work placed on the receiving portion.
The receiving portion has left and right receiving surfaces.
These receiving surfaces are tilted to face each other and
The stopper is provided with a work transfer pallet characterized in that the work is configured to be retractable from a movement path when the work is slid forward along the receiving surface.

Preferably, the receiving surface is formed so that the front side is lower than the rear side. Preferably, the stopper includes an arm member rotatably provided about an axis extending in the front-rear direction, and the arm member. Is formed so as to rotate between a closed position that closes the movement path and an open position that opens the movement path.

Preferably, the stoppers are arranged in pairs separated from each other to the left and right, and the arm member has a lateral extension portion extending from the shaft to the other stopper side and an extension portion bent from the lateral extension portion and extending upward. To prepare for.

Preferably, the arm member rotates toward the closed position by its own weight, and the arm member is provided with a closed position stopper for stopping the rotation due to its own weight and positioning the arm member in the closed position. ..

Preferably, the arm member is rotated toward a closed position by its own weight, and when the arm member is rotated toward an open position in a direction opposite to the rotation by its own weight, the arm member is subjected to the above-mentioned arm member. An open position stopper is provided to stop at the open position.

According to the above aspect, the drum-shaped work can be stably conveyed in a sideways posture.

It is a perspective view of the work transfer pallet which concerns on one Embodiment of this disclosure. It is a front sectional view of the work transfer pallet. It is a left side sectional view of the work transfer pallet. It is sectional drawing of the main part of the work transfer pallet. FIG. 2 is a view taken along the line AA of FIG. It is a top view of the work transfer pallet on which the work is placed. It is a front view of the work transport pallet with the stopper released.

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. As shown in FIG. 1, in each of the front-back, left-right, up-down directions in the embodiment described later, the horizontal direction of carrying out the work is set to the front, and this is used as a reference. However, each direction in the present embodiment is used for convenience of explanation, and represents a relative positional relationship between the members described later.

FIG. 1 is a perspective view of the work transport pallet 1 as viewed from the left, front, and above. FIG. 2 is a front view of the work transport pallet 1 as viewed from the front. As shown in FIGS. 1 and 2, the work transport pallet 1 is provided on a tray-shaped pallet main body 2 and the pallet main body 2, and the end face of the drum-shaped work W faces in the front-rear direction. It is provided with a receiving portion 3 to be mounted so as to be mounted, and a stopper 4 arranged in front of the receiving portion 3.

As shown in FIG. 6, the pallet body 2 has a shape in which the four corners of the top view rectangle are chamfered, that is, the lengths of the front side, the rear side, the left side, and the right side are substantially the same. The hypotenuse that is inclined is formed into an octagonal shape that is shorter than each of the sides. The pallet body 2 includes a bottom portion 2a formed in a horizontal plate shape, and an edge wall portion 2b that is bent from the outer peripheral edge of the bottom portion 2a and extends upward.

As shown in FIG. 3, the work W is composed of a hub with a brake drum, which is a kind of vehicle component. Hubs with brake drums are generally installed in large vehicles such as trucks. The hub with a brake drum is formed by integrally forming a hub H for fixing a wheel and a brake drum D of a drum type brake. Hub H is formed particularly strongly from its function. Therefore, some hubs H are smaller than the brake drum D but have the same weight as the brake drum D, and the center of gravity g of the hub with the brake drum is closer to the hub H side than the axial center of the hub with the brake drum. It may be located in. The work W is not limited to this. The work W may be any as long as it is formed in a drum shape and is preferably conveyed sideways.

By the way, when the work W is assembled in a horizontal posture like a hub with a brake drum, if the work W is mounted on the work transport pallet 1 in a vertical posture, the work W is rotated by about 90 degrees at the time of assembly. It has to be complicated and complicated.

Therefore, the work transfer pallet 1 according to the present embodiment includes a receiving portion 3 and a stopper 4, which will be described later. As a result, the drum-shaped work W can be stably conveyed in a sideways posture.

As shown in FIG. 2, the receiving portion 3 includes a pair of left and right support bases 5. These support bases 5 are formed symmetrically. Therefore, the support base 5 on the left side will be described in detail, and the description of the support base 5 on the right side will be partially omitted.

As shown in FIGS. 1, 2 and 3, the support base 5 is provided on the height adjusting plate 6 provided on the pallet body 2, the base 7 provided on the height adjusting plate 6, and the base 7. A leg portion 8 to be mounted and a mounting portion 9 provided on the leg portion 8 for mounting the work W are provided.

The height adjusting plate 6 is for adjusting the height of the receiving portion 3, and is formed in the shape of a rectangular plate when viewed from above. The height adjusting plate 6 is provided on the pallet body 2 so as to be removable with bolts and nuts (not shown) together with the base portion 7 described later. As a result, the height adjusting plate 6 is configured to be replaceable with other height adjusting plates 6 having different thicknesses. A plurality of height adjusting plates 6 may be stacked. In this case, the height of the receiving portion 3 can be adjusted by changing the number of height adjusting plates 6.

The base portion 7 is formed in the shape of a rectangular plate when viewed from above, and is provided so as to be overlapped on the height adjusting plate 6. The leg portion 8 is formed in a plate shape extending in the vertical direction and extending in the horizontal direction. The leg portion 8 is provided upright on the base portion 7. The upper end of the leg portion 8 is inclined so that the height decreases from the left end to the right end (as it approaches the other support base 5). Further, a pair of leg portions 8 are provided on the base portion 7 so as to be separated from each other in the front-rear direction. Further, a reinforcing member 10 is provided so as to hang between the legs 8. In addition, a plurality of three or more leg portions 8 may be provided on the base portion 7, or a single leg portion 8 may be provided.

The mounting portion 9 is composed of a frame portion 11 provided so as to span between the upper ends of the leg portions 8, a first mounting pad portion 13 provided on the front end portion of the frame portion 11, and a first mounting pad portion 13. A second mounting pad portion 14 provided on the rear frame portion 11 is provided. The frame portion 11 is formed in a plate shape and is inclined along the upper end of the leg portion 8. The frame portion 11 includes a front extension portion 11a extending forward from the front leg portion 8.

The first mounting pad portion 13 is made of a soft resin. Further, the first mounting pad portion 13 is formed in a relatively thin plate shape so that the enlarged diameter portion E of the work W can be mounted. The upper surface of the first mounting pad portion 13 constitutes a first receiving surface 13a that receives the outer peripheral surface of the work W. The first receiving surface 13a receives the enlarged diameter portion E formed on the outer periphery of the open end of the brake drum D. The first receiving surface 13a is inclined so that the height decreases from the left end to the right end. That is, the first receiving surfaces 13a of the left and right support bases 5 are inclined so as to face each other.

The second mounting pad portion 14 is made of a soft resin. Further, the second mounting pad portion 14 is formed in a plate shape thicker than the first mounting pad portion 13. The upper surface of the second mounting pad portion 14 constitutes a second receiving surface 14a that receives the outer peripheral surface of the work W. The second receiving surface 14a receives the outer peripheral surface of the brake drum D having a smaller diameter than the enlarged diameter portion E. The second receiving surface 14a is inclined so that the height decreases from the left end to the right end. That is, the second receiving surfaces 14a of the left and right support bases 5 are inclined so as to face each other. Further, the second mounting pad portion 14 is formed so that the height dimension decreases from the rear end to the front end. As a result, the second receiving surface 14a is inclined so that the front side is lower than the rear side.

Further, a pillow member 15 for height adjustment is interposed between the second mounting pad portion 14 and the frame portion 11. The pillow member 15 is formed in a plate shape having an equal thickness. As a result, the receiving surface 16 composed of the first receiving surface 13a and the second receiving surface 14a is lower on the front side than on the rear side as a whole. The tilt angle of the receiving surface 16 is set so that the work W can be easily assembled to the product. That is, the inclination angle of the receiving surface 16 is set so that when the work W is assembled to the product, the work W is guided to the assembling position only by pulling it forward along the receiving surface 16.

Further, the second mounting pad portion 14 and the pillow member 15 are detachably fastened to the frame portion 11 with bolts and nuts (not shown). As a result, the second mounting pad portion 14 and the pillow member 15 can be replaced with other ones having different thicknesses and shapes. The height and tilt angle of the second receiving surface 14a can be changed by replacing the second mounting pad portion 14 and the pillow member 15 with other ones having different thicknesses and shapes, and the tilt angle of the receiving surface 16 can be changed. Etc. can be changed. Then, even if the work W to be conveyed is changed to another shape, it is possible to flexibly respond to the change. A plurality of pillow members 15 may be interposed between the second mounting pad portion 14 and the frame portion 11. In this case, the height of the second mounting pad portion 14 can be adjusted by changing the number of pillow members 15. Further, the second mounting pad portion 14 and the pillow member 15 may be detachably provided on the frame portion 11 by a fixing means (not shown) other than bolts and nuts. Further, the pillow member 15 may be omitted.

As shown in FIGS. 3, 4 and 5, a temporary fixing stopper 17 for restricting the forward movement of the work W mounted on the mounting portion 9 is provided in front of the frame portion 11. The temporary fixing stopper 17 includes a vertical plate portion 18 provided at the front end of the front extension portion 11a, and a temporary fixing pad 19 provided on the vertical plate portion 18.

The vertical plate portion 18 is formed in a rectangular plate shape that extends in the vertical direction and extends in the horizontal direction. The vertical plate portion 18 is inclined at the same angle as the frame portion 11. That is, the vertical plate portion 18 includes an upper side 18a and a lower side 18b that are inclined at the same angle as the frame portion 11. The upper side 18a of the vertical plate portion 18 is covered with a temporary fixing pad 19 which will be described later. The lower side 18b of the vertical plate portion 18 receives the open position stopper 30 described later and applies a reaction force to the open position stopper 30.

The temporary fixing pad 19 is made of a soft resin. Further, the temporary fixing pad 19 is formed to have a rectangular cross section, and is provided with a fitting groove 19a for fitting the upper side 18a of the vertical plate portion 18 on the lower surface. As a result, the temporary fixing pad 19 is integrally attached to the vertical plate portion 18. The temporary fixing pad 19 is formed so as to be higher than the first receiving surface 13a, and is engaged with the front end of the outer peripheral edge of the work W mounted on the mounting portion 9. As a result, the temporary fixing pad 19 restricts the movement of the work W to the front, and when the work W is strongly pushed forward, the temporary fixing pad 19 allows the work W to ride on and moves to the front of the work W. Tolerate.

As shown in FIGS. 2 and 5, the stopper 4 projects larger than the temporary fixing stopper 17 onto the receiving portion 3 and more reliably restricts the forward movement of the work W placed on the receiving portion 3. Further, the stopper 4 is configured to be retractable from the movement path when the work W is slid forward along the receiving surface 16. Here, the movement path is a movement trajectory when it is assumed that the work W moves forward along its central axis C (see FIG. 3). A pair of stoppers 4 are arranged apart from each other on the left and right sides. These pair of stoppers 4 are formed symmetrically. Therefore, the stopper 4 on the left side will be described in detail, and the stopper 4 on the right side will be partially omitted.

As shown in FIGS. 1, 2 and 4, the stopper 4 includes an arm member 20 rotatably provided about an axis X extending in the front-rear direction. The arm member 20 has a lateral extension portion 21 extending to the right (in the direction of the other stopper 4) from the axis X, and an upper extension portion 22 that is bent at an acute angle in a V shape from the lateral extension portion 21 and extends diagonally upward. Be prepared. A shaft rod 23 is rotatably provided on the leg portion 8 of the support base 5 on the shaft X. Specifically, the shaft rod 23 is penetrated in the front-rear direction by a pair of leg portions 8 arranged apart from each other in the front-rear direction, and is rotatably loosely fitted.

The arm member 20 is integrally fixed to the front end portion of the shaft rod 23, and rotates integrally with the shaft rod 23. Further, the shaft rod 23 between the legs 8 is provided with a lever 24 for operation. The lever 24 is integrally fixed to the shaft rod 23 and extends from the shaft rod 23 in the upper left direction (obliquely upward in the direction opposite to the other stopper 4). The lever 24 is rotated downward to rotate the arm member 20 to an open position described later. Further, a resin cushioning material 25 for protecting the work W is provided on the outer periphery of the extension portion 22.

Further, the arm member 20 has a closed position (see FIG. 2) in which the movement path of the work W is closed by the extension portion 22 and an open position in which the extension portion 22 is retracted from the movement path to open the movement path (see FIG. 7). ) And is formed to rotate. The closed position is the position of the arm member 20 when the extension portion 22 is projected upward from the receiving portion 3. In the present embodiment, the closed position is set so that the extension portion 22 projects upward from the temporary fixing pad 19. The open position is the position of the arm member 20 when the extension portion 22 is rotated downward from the closed position and is positioned below the receiving portion 3. In the present embodiment, the open position is set so that the extension portion 22 is positioned below the temporary fixing pad 19.

Further, when the arm member 20 is in the closed position, the center of gravity G of the arm member 20 is located on the right side (the other stopper 4 side) of the axis X. As a result, the weight of the arm member 20 acts to rotate the arm member 20 counterclockwise, that is, in the closing direction. On the other hand, the arm member 20 is provided with a closed position stopper 26 for stopping the rotation due to its own weight and stopping the arm member 20 at the closed position.

As shown in FIGS. 2 and 4, the closed position stopper 26 is formed so as to hit the bottom surface of the front extension portion 11a and stop the rotation of the arm member 20 when the arm member 20 is in the closed position. As a result, the force for rotating the arm member 20 counterclockwise is received by the bottom surface of the front extension portion 11a. Then, the arm member 20 is stopped at the closed position. As a result, the stopper 4 is set to a normal close that closes the movement path of the work W in a state where it does not receive an external force.

Further, there is a vertical plate portion 18 between the arm member 20 and the front extension portion 11a, and the bottom surface of the front extension portion 11a as viewed from the arm member 20 is hidden behind the vertical plate portion 18. Therefore, the closed position stopper 26 is formed by being bent in multiple stages so as to avoid the vertical plate portion 18. Specifically, the closed position stopper 26 is attached to the front surface of the extension portion 22 on the proximal end side and extends diagonally to the lower left, and an intermediate piece provided at the distal end portion of the proximal piece 27 and extends rearward. 28 and a tip piece 29 provided at the tip of the intermediate piece 28 and extending diagonally to the upper left. The tip of the tip piece 29 comes into contact with the bottom surface of the front extension portion 11a when the arm member 20 is in the closed position. Although the closed position stopper 26 has been described as being in contact with the bottom surface of the front extension portion 11a, the present invention is not limited to this. For example, the closed position stopper 26 may be in contact with the vertical plate portion 18, the leg portion 8, or the pallet body 2.

Further, the arm member 20 is provided with an open position stopper 30 for stopping the arm member 20 at the open position. As shown in FIG. 7, the open position stopper 30 abuts on the vertical plate portion 18 and regulates the rotation of the arm member 20 when the arm member 20 is rotated in the direction opposite to the rotation due to gravity. Specifically, the open position stopper 30 is provided at the tip of the laterally extending portion 21 and is formed in a pin shape extending rearward. Further, even when the arm member 20 is in the open position, the open position is set so that the center of gravity G of the arm member 20 is located on the right side (the other stopper 4 side) of the axis X. As a result, the arm member 20 is in the open position only when the lever 24 is rotated downward due to a downward force or the like. When the lever 24 no longer receives a downward force, the arm member 20 is rotated to the closed position by its own weight. The open position stopper 30 is not limited to this. For example, the open position stopper 30 may be in contact with the bottom surface of the front extension portion 11a on the right side of the axis X, the leg portion 8, or the pallet body 2. Further, the open position stopper 30 may also serve as the closed position stopper 26. For example, when the arm member 20 is rotated to the open position, a locking member (not shown) that comes into contact with the closed position stopper 26 (also used as the open position stopper 30) is provided on the leg portion 8 or the like. It is good. In this case, the locking member may be composed of the head of a bolt or the like that protrudes forward from the left end of the leg 8.

Next, the operation of this embodiment will be described.

When the work W is placed on the work transfer pallet 1, the work W is placed on the receiving portion 3 using a hoist or the like as shown in FIGS. 2 and 3. At this time, the posture of the work W is such that the brake drum D is positioned in the front and the hub H is positioned in the rear. As a result, the work W is placed on the receiving portion 3 in a sideways posture and with both end faces in the axis C direction facing in the front-rear direction. At this time, the receiving surfaces 16 of the left and right support bases 5 constituting the receiving portion 3 are inclined so as to face each other. Therefore, the work W is stably placed on the receiving portion 3. Further, the work W placed on the receiving portion 3 is inclined so as to be lowered toward the front. Therefore, even the work W whose center of gravity g is biased toward the hub H side can be placed relatively stably. Further, the front end of the outer peripheral edge of the work W is in contact with the temporary fixing pad 19 of the temporary fixing stopper 17. Further, the arm member 20 of the stopper 4 is in a closed position due to its own weight, and restricts the forward movement of the work W. Therefore, the forward movement of the work W is usually restricted by the temporary fixing stopper 17. Further, even if the work W gets over the temporary fixing stopper 17, the stopper 4 abuts on the front end of the work W to prevent the work W from slipping off or falling off in the front.

After that, the work transfer pallet 1 is transferred to a target assembly position by connecting a conveyor, a trolley, or the like (not shown). At this time, as shown in FIGS. 5 and 6, the enlarged diameter portion E of the work W is mounted on the left and right first mounting pad portions 13, and the front end is a temporary fixing stopper for the left and right support bases 5. It comes into contact with 17. As a result, the work W is restricted from moving forward. Further, as described above, the left and right receiving surfaces 16 are inclined so as to face each other and are inclined so that the front side is lower than the rear side. Therefore, the work W is restricted from moving to both the left and right sides and is restricted from moving backward. That is, the work W placed on the receiving portion 3 is restricted from moving in the front-back and left-right directions. Further, when the work W is a hub with a brake drum, its center of gravity g may be biased toward the hub H side (rear side). However, since the receiving surface 16 is inclined downward, the posture of the work W can be stabilized. Therefore, even if the work transport pallet 1 shakes when connecting between the conveyor and the trolley, the work W can be continuously held in a fixed position on the receiving portion 3, and the work W can be stably held in a sideways posture. Can be transported.

After that, when the work transport pallet 1 reaches the assembly position, the stopper 4 is released so that the work W can be carried forward. As shown in FIG. 7, the stopper 4 is released by pushing the lever 24 downward. As a result, the shaft rod 23 is rotated, and the arm member 20 fixed to the shaft rod 23 is rotated to the open position. At this time, the lever 24 can be operated by a robot or the like (not shown).

After that, the work W is assembled to the product or the like while the work W is carried forward from the work transport pallet 1. At this time, the work W is pushed from the rear to the front by a pusher or the like (not shown). Further, the lever 24 is kept pushed downward. As a result, the arm members 20 of the left and right support bases 5 are maintained in the open position and do not hinder the carry-out of the work W. Further, the work W gets over the temporary fixing pad 19 of the temporary fixing stopper 17 by being strongly pushed forward by a pusher or the like. Therefore, the work W slides on the receiving surface 16 and is pushed forward. At this time, the inclination angle of the receiving surface 16 is set so as to be guided to the assembly position only by pushing the work W forward along the receiving surface 16. Therefore, it is not necessary to readjust the posture of the work W, and the work W can be easily assembled to the product or the like in the same posture as the posture on the receiving surface 16. After that, when the force for pushing the lever 24 downward is lost, the arm member 20 is rotated to the closed position by its own weight. When operating the lever 24 using a robot or the like, it is convenient because the arm member 20 can be rotated to the closed position simply by removing the robot or the like from the lever 24.

In this way, the left and right receiving surfaces 16 are inclined in a V shape so as to face each other, and the stopper 4 is configured to be retractable from the movement path of the work W. Therefore, the drum-shaped work W can be stably conveyed to the assembling position while maintaining the sideways posture, and can be easily assembled to the product or the like.

Although the embodiments of the present disclosure have been described in detail above, the present disclosure may also include the following other embodiments.

(1) The arm member 20 is integrally fixed to the shaft rod 23, and the shaft rod 23 is rotatably provided on the leg portion 8 of the support base 5, but the present invention is not limited to this. The arm member 20 may be rotatably provided on the shaft rod 23. In this case, the shaft rod 23 may be integrally fixed to the leg portion 8, and the lever 24 may be provided on the arm member 20.

(2) The shape of the arm member 20 is not limited to the above. For example, the arm member 20 may be formed in an L-shape in front view or may be formed in an arc shape in front view.

(3) The stopper 4 is supported by the support base 5, but the stopper 4 is not limited to this. For example, the stopper 4 may be provided with a dedicated support member (not shown) independent of the support base 5. In this case, the support member may be provided on the pallet body 2.

(4) The receiving portion 3 is provided with a pair of left and right support bases 5, but is not limited to this. The left and right support bases 5 may be integrally connected.

(5) The receiving surface 16 is composed of a first receiving surface 13a and a second receiving surface 14a, but is not limited thereto. For example, the receiving surface 16 may be formed on either one of the first receiving surface 13a and the second receiving surface 14a, and the other may be omitted.

1 Pallet for transporting work 2 Pallet body 3 Receiving part 4 Stopper 16 Receiving surface W Work

Claims (6)

The pallet body formed in a tray shape and
A receiving portion provided on the pallet body on which a drum-shaped work is placed so that its end face faces in the front-rear direction.
It is provided with a stopper disposed in front of the receiving portion and restricting the forward movement of the work placed on the receiving portion.
The receiving portion has left and right receiving surfaces.
These receiving surfaces are tilted to face each other and
The stopper is a work transfer pallet configured to be able to retract from the movement path when the work is slid forward along the receiving surface. The work transfer pallet according to claim 1, wherein the receiving surface is formed so that the front side is lower than the rear side. The stopper includes an arm member rotatably provided about an axis extending in the front-rear direction.
The work transfer pallet according to claim 1 or 2, wherein the arm member is formed so as to rotate between a closed position for closing the movement path and an open position for opening the movement path. The stoppers are arranged in pairs separated from each other on the left and right sides.
The work transfer pallet according to claim 3, wherein the arm member includes a lateral extension portion extending from the shaft toward the other stopper side and an extension portion bent upward from the lateral extension portion. The arm member rotates toward the closed position due to its own weight,
The work transfer pallet according to claim 3 or 4, wherein the arm member is provided with a closed position stopper for stopping rotation due to its own weight and positioning the arm member in the closed position. The arm member rotates toward the closed position due to its own weight,
Claims 3 to 5 are provided with an open position stopper for stopping the arm member at the open position when the arm member is rotated toward an open position in a direction opposite to the rotation due to its own weight. The work transfer pallet according to any one of the items.

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