JPH0571490B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an article holding device used in a pallet loading device or the like.

(Prior Art) A pallet loading device for loading articles onto pallets is disclosed in Japanese Patent Application Laid-open No. 45826/1983.

The pallet loading device disclosed in this publication has an article holding device installed on an elevated rail installed horizontally at a high place via a horizontal movement mechanism. The structure is such that the attached vertical arm can be raised and lowered in its length direction.

(Problems to be Solved by the Invention) The conventional article holding device described above has a structure in which the vertical arm with the article holding mechanism attached to the lower end moves up and down in its length direction. It protrudes upward for a long time, thereby creating a dead space above when used for transferring goods in a pallet loading device, etc., making it difficult to transfer goods to or from the ceiling. The problem is that it cannot be done.

The present invention was developed in view of the above-mentioned problems, and it is an article holding device used for transferring articles in a pallet loading device, etc., by eliminating the long projecting part above the machine frame, thereby creating a dead space above. It prevents people from doing so.

[Structure of the invention]

(Means for Solving the Problems) The article holding device 20 of the present invention includes a pair of upper and lower arms 35 and 36 that are rotatably supported in the lower part of the machine frame 21, and a pair of upper and lower arms 35, 36, 3
The arm 36 is located near the shaft support of one arm 36 of 6.
an actuating part 37 provided integrally with the actuating part 3;
a horizontal drive mechanism 38 that moves the one arm 36 up and down by moving the arm 7 in the horizontal direction;
a posture maintaining body 49 that is pivotally supported at the tips of the pair of upper and lower arms 35 and 36 and forming a parallelogram link together with the arms 35 and 36;
9 and an article holding mechanism 51 provided at the lower part of the container.

(Function) The article holding device 20 of the present invention moves the arms 35 and 36 up and down by moving the operating portion 37 of the arm 36 in the horizontal direction using the horizontal drive mechanism 38. The long upwardly protruding part can be eliminated.

(Example) An example of the article holding device of the present invention will be described with reference to FIGS. 1 and 2.

The figure shows a pallet loading device, 1 is a frame,
This pedestal 1 is constructed in the shape of an elongated rectangular frame, and is horizontally supported at a high position by a plurality of supports 2. Elevated rails 3 are attached to the inner sides of the two opposing long sides. It is being

Reference numeral 7 denotes a movable frame, and this movable frame 7 is assembled into a rectangular frame shape whose long sides are the distance between the pair of elevated rails 3 on both sides of the pedestal 1, and the outside of its two opposing parallel short sides. By engaging the elevated rail 3 with a plurality of wheels 8 that are pivotally supported in the section, the platform 1 is supported so as to be movable in the length direction of the pedestal 1 along the elevated rail 3. Guide rails 9 are provided on the inner sides of each of the two long sides.

Four sprockets 11 are pivotally supported on the outside of the pedestal 1, located on extensions of the elevated rails 3 on both sides, and two chains 12 are hooked onto these four sprockets 11 along the elevated rails 3. Then, both ends of each chain 12 are fixed to the movable frame 7, and furthermore, the two sprockets 11 for one end of the pair of elevated rails 3 on both sides are connected by an interlocking shaft 13, and one end of the interlocking shaft 13 A sprocket 14 is attached to the motor 1 mounted on the frame 1.
5, sprocket 16 and endless chain 1
When the motor 15 is driven, the chains 12 on both sides are driven synchronously, and the movable frame 7 is moved along the elevated rail 3.

20 is an article holding device; this article holding device 20
is provided on a transverse frame 21 serving as a machine frame, and this transverse frame 21 is assembled into a rectangular frame shape with one side being the interval between the pair of guide rails 9 on both sides of the movable frame 7,
By engaging a plurality of wheels 22 that are pivotally supported on the outer sides of the two opposing parallel sides with the guide rail 9, the movable frame 7 can be freely moved along the guide rail 9 in the length direction. Supported.

A screw shaft 26 is rotatably supported between the two opposing short sides of the moving frame 7 in parallel with the guide rail 9, and the screw shaft 26 is threaded through the nut body 27. ,
This nut body 27 is attached to the transverse frame 21 of the article holding device 20, and the screw shaft 26 is attached to the motor 28 provided on the moving frame 7.
are connected to each other via a sprocket 29, an endless chain 30, and a sprocket 31, and when the motor 28 is driven, the screw shaft 26
is driven so that the transverse frame 21 moves along the guide rail 9 together with the nut body 27.

In addition, a pair of upper and lower arms 35 and 36 are rotatably supported in the lower part of the traversing frame 21 for the article holding device 20, and the lower thick and strong arm 36
A lever 37 as an actuating part is integrally protruded from the arm 36 upward from the shaft support of the lever 37.
A horizontal drive mechanism 3 provided on the transverse frame 21
8 moves in the horizontal direction, the lower arm 36 moves up and down.

The drive mechanism 38 of the article holding device 20 supports one end of a support frame 42 rotatably in the vertical direction on the transverse frame 21 via a shaft 41, and a screw shaft 43 is rotatably supported on the support frame 42. This screw shaft 43 is screwed through a nut body 44, this nut body 44 is pivotally attached to the lever 37 of the arm 36, and a motor 45 attached to one end of the support frame 42 is screwed onto the screw shaft. When the motor 45 is driven, the screw shaft 43 is driven and the lever 37 is connected to the nut body 44.
The arm 36 also moves along the supporting frame 42, thereby causing the arm 36 to move up and down.

In the article holding device 20, the support frame 42, screw shaft 43, and motor 45 of the drive mechanism 38 are horizontal, and when the lever 37 is rotated to move the arm 36 up and down, Frame 4
2 rotates around the shaft 41, but the vertical movement of the support frame 42 at this time is reduced so that the drive mechanism 38 is always maintained in a substantially horizontal state.

A posture maintaining body 49 is pivotally connected to the distal ends of the pair of upper and lower arms 35 and 36 of the article holding device 20, and this posture maintaining body 49 is connected to the arm 3.
5 and 36 form a parallelogram link, whereby the lower arm 3 is driven by the drive mechanism 38.
6 is moved up and down, the upper arm 35 also moves up and down, and at this time, the posture maintenance body 49 always maintains the same posture.
An article holding mechanism 51 is provided at the bottom of the article holding mechanism 51 so as to be rotatable in the horizontal direction via a shaft 50.
1 is adapted to rotate in the horizontal direction by a rotating mechanism (not shown).

The article holding mechanism 51 of the article holding device 20 includes:
A supporting frame 55 is attached to the lower part of the posture maintaining body 49 via a shaft 50.
A fixed clamping body 56 is installed vertically at the lower part of one side of the support frame 55, and a movable clamping body 57 is installed vertically at the lower part of the other side of the support frame 55 opposite to this fixed clamping body 56. The movable clamping body 57 is configured to advance and retreat toward the fixed clamping body 56 by a drive mechanism (not shown), and in the closed state in which the movable clamping body 57 is advanced toward the fixed clamping body 56, For example, a box-shaped article W is held between the movable holding bodies 57.

The moving direction of the moving frame 7 is the long side direction of the pedestal 1, and the moving direction of the transverse frame 21 of the article holding device 20 is the short side direction of the pedestal 1.
Due to these movements, the article holding mechanism 51 of the article holding device 20 can freely move within the range almost surrounded by the pedestal 1, and furthermore, within this range, by vertical movement of the arms 35 and 36, One article carry-in conveyor 62 can move up and down between the pedestal 1 and the floor 61, and one article carry-in conveyor 62 is installed from the outside of one of the elevated rails 3 of the pedestal 1 at one corner of the moving range of the article holding mechanism 51. are arranged, and a plurality of loading positions 6 are provided on the remaining floor surface 61.
3 are set, and a pallet P is arranged at each of the plurality of loading positions 63.

Then, in the pallet loading device of this embodiment, the article W is conveyed by the article carry-in conveyor 62, and this article W is stopped and positioned at the tip of the article carry-in conveyor 62 by a stopper or the like (not shown), and the article W is stopped at the tip of the article carry-in conveyor 62, and This article W is
The fixed clamping body 56 and the movable clamping body 57 of the article holding mechanism 51 in the open state are positioned on both sides of the article holding mechanism 51, and then the movable clamping body 57 is advanced toward the fixed clamping body 56 and closed. The article W is held between the movable clamping bodies 57, and then the arms 35 and 36 are rotated, and the transverse frame 2 is rotated.
1 and movement of the moving frame 7, the article W is moved onto one of the pallets P at the plurality of loading positions 63, for example, onto a pallet P by type or destination, and if necessary, the article W is moved. The article holding mechanism 51 of the article holding device 20 is rotated around the shaft 50 to adjust the loading direction of the article W held therein, and then,
By retracting the movable clamping body 57 from the fixed clamping body 56 and opening it, the fixed clamping body 56 and the movable clamping body 5 are separated.
Items W between 7 are unloaded onto the pallet P, and by repeating this operation,
The articles W carried in by the article carry-in conveyor 62 are stacked, for example, on pallets P by type or destination in a predetermined stacking pattern and in a predetermined number of stages.

In this pallet loading device, there is no long protruding part on the upper part of the pedestal 1 provided with the elevated rail 3, and in particular, the upper part of the pedestal 1 does not have a long protruding part on the upper part of the pedestal 1 provided with the elevated rail 3. There is no long protruding part on the frame 1, and there is only a horizontal drive mechanism 38 of the article holding device 20.
There is very little dead space above, so even if the ceiling is low, the height for loading items W can be maximized, and if the ceiling is high, the space above the frame 1 can be used effectively. It can be used for.

Note that the present invention is not limited to the embodiments described above; for example, the motor 15 for the moving frame 7 may be disposed at the bottom of the pedestal 1, or the drive mechanism 38 for the arm 36 of the article holding device 20 may be arranged. horizontal frame 21
When placed at the bottom of the pedestal 1, there is no part that protrudes from the top of the pedestal 1, so the dead space above the pedestal 1 can be further reduced.
It is also possible to install the elevated rail 3 on the ceiling and eliminate the supports 2 and the like.

As described above, when the drive mechanism 38 of the article holding device 20 is disposed at the lower part of the transverse frame 21, it is not necessary to provide the lever 37 for actuation on the arm 36, and a part of the arm 36 is As such, the nut body 44 can be pivoted directly to the arm 36.

〔Effect of the invention〕

As described above, according to the present invention, in the article holding device used for transferring articles, since there is no long protruding part on the upper part of the machine frame, the dead space above the machine frame is extremely small, and therefore, it is possible to You can lift items up to the ceiling or hold items near the ceiling.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the article holding device of the present invention, FIG. 1 is a partially cutaway side view of the pallet loading device, and FIG. 2 is a plan view thereof. 20... Article holding device, 21... Traverse frame as a machine frame, 35, 36... Arm, 37... Lever as an operating part, 38... Drive mechanism, 49... Posture maintenance body, 51... Article Holding mechanism, W...article.

Claims (1)

[Claims] 1. A pair of upper and lower arms that are rotatably supported in the vertical direction at the bottom of the machine frame, an actuating part that is integrally provided with the arm near the pivot of one arm of the pair of upper and lower arms, and this actuating part. a horizontal drive mechanism that moves the one arm up and down by moving the arm in the horizontal direction; a posture maintaining body that is pivotally supported at the tips of the pair of upper and lower arms and forms a parallelogram link together with the arm; An article holding device comprising: an article holding mechanism provided at a lower part of a posture maintaining body.