JPH023445Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is directed to a hanger that can store cloth and other various objects inside and transport the objects to a predetermined location via a hanger rail. This relates to a lower type conveyance device.

[Prior Art] A conventional conveyance device of this type includes a hanger rail installed on a conveyance line, a carrier that runs freely on the hanger rail, and a carrier that has casters at the bottom and is suspended and supported by the carrier. The hanger rail comprises a transfer rail section installed at a high level of the conveyance line, a stop rail section installed at a low level, and a connection between the stop rail section and the transfer rail section with a difference in height. It has a series of connecting rail parts, and is constructed so that the whole is installed at a predetermined height on the conveyance line.

When operating such a conveyance device,
The stop rail portions of the hanger rail are positioned on the loading and unloading sides of the conveyance line, and the higher transfer rail portion is positioned on the line connecting the loading and unloading sides, and the hanger A rail is constructed so that a carrier with a container suspended from the hanger rail moves.
When the carrier is moved to the lower stop rail section, the lower caster of the container suspended from the carrier receives the weight of the container and touches the floor, pushing the container backwards and lifting the carrier off the stop rail section. When the container is moved to the higher transfer rail section via the connecting rail section, the height difference between the stop rail section and the transfer rail section causes the container to be lifted up and its lower caster to automatically leave the floor, allowing the container to be suspended from the carrier. This suspended state allows the container to be moved to the carry-in side or the carry-out side of the line.

[Problems to be solved by the invention] However, in the conventional conveying device described above, only when the carrier moves to the stop rail part of the rail, the casters provided at the bottom of the container touch the ground, and the carrier stops moving. When moving on a high-level transfer rail, the casters are configured to be completely off the floor, so in such a suspended state, the container suspended on the carrier is pushed and moved onto the transfer line. When moving the container to the side or the unloading side, the container tends to sway around the suspension point of the carrier as a fulcrum and lacks stability. Therefore, the container must be pushed carefully, making the transport work troublesome. It had

This invention solves the above-mentioned conventional problems, and is a suspended conveyance device that aims to prevent the container from rolling and stabilize it while it is being moved, making the conveyance work easier. It provides:

[Means for solving the problem] Therefore, in order to achieve the above object, the present invention has the following features:
A hanger rail installed on a conveyance line, a carrier that runs freely on the hanger rail,
The hanger rail consists of a container that has casters at the bottom and is suspended and supported by the carrier;
Assuming that the suspended conveyance device has a series of stop rail sections installed at a low level and a connecting rail section that connects the stop rail section with a difference in height and the transfer rail section, a flange section is attached to the upper part of the caster. A structure is adopted in which a shaft body is installed vertically, the shaft body is supported in a vertically movable manner at the bottom of the container, and a spring member is attached between the flange of the shaft body and the bottom of the container to constantly bias the caster downward. did.

[Function] Accordingly, in the present invention, when the carrier moves to the stop rail part of the rail installed at a low level, the caster, which is constantly urged downward by the spring member, comes into contact with the floor surface, In the process of the container descending due to the change in height of the stop rail portion, the shaft of the caster relatively rises against the biasing force of the spring member and receives the weight of the container.

Then, when the carrier is moved from the stop rail section to the transfer rail section installed at a higher level via the connecting rail section and the container rises due to the difference in height, the biasing force of the spring member acts this time, automatically moving the caster. Even if the container is completely suspended by the carrier, the caster remains in contact with the floor.

[Example] Hereinafter, the present invention will be described in detail based on an illustrative example.

First, a hanger rail installed on a conveyance line and a container that moves on the hanger rail, which are the premise of this invention, will be explained.

In the drawing, 1 is a hanger rail constructed on a conveyance line connecting the carry-in side and the carry-out side to convey goods, 11 is a carrier that runs freely on the hanger rail 1, and 21 is a hanger rail suspended from the carrier 11. It is a container that is supported by hanging.

The hanger rail 1 includes a transfer rail section 2 installed at a high level of the conveyance line, a stop rail section 3 installed at a low level, and an inclined structure that connects the stop rail section 3 and the transfer rail section 2 with a difference in height. It has a series of connecting rail parts 4 having a shape of
is positioned, and the high transfer rail section 2 is positioned on the line connecting the carry-in side and the carry-out side.

At such heights of the transfer rail section 2, the stop rail section 3, and the connecting rail section 4, the container 21 suspended and supported by the hanger rail 1 via the carrier 11 is placed on the connecting rail section 4. On the way, the lower part of the container 21 separates and lands on the floor, and as the container 21 moves to the stop rail section 3, the height is such that the landed container 21 approaches the stop rail section 3, that is, the carrier 11.

The carrier 11 also includes an upper drive section 12 having wheels (not shown) that slide on the hanger rail 1, and a hanging section 13 that hooks and supports a hook section 22 of a container 21, which will be described later.

This hanging part 13 has a pair of hanger arms 14.
is rotatably provided via a shaft 16. This hanger arm 14 has a container 2 at its tip.
The container 21 has a hook 19 that is hooked to a hook 22 of the hook 1 to suspend the container 21, and a tapered surface 15 is formed on a surface continuous to the inside of the hook 19. When the container 21 moves to the stop rail portion 3 and approaches the carrier 11, the hook portion 22 of the container 21 hooked to the hook 19 slides on the tapered surface 15. The hanger arm 14 is rotated in the unlatching direction depending on the angle.

Reference numeral 17 denotes a coiled spring member that rotates the hanger arm 14 in the latching direction and the latching direction with respect to the latching portion 22 of the container 21. In the case of this spring member 17, the hanging portion 22 of the container 21 is hung on the hanger arm 14, and the hanging portion 22
is located on the vertical line L of the shaft 16 on which the hanger arm 14 is pivoted to the hanging part 13, one end 17a of the spring member 17 is placed on the hanging part 13 at the top of the shaft 16 and on the vertical line L. , and the other end 17b is placed on the hanger arm 14 at a position slightly shifted from the vertical line L toward the tapered surface 15, and when the container 21 approaches the carrier 11, the latching portion 22 slides on the tapered surface. The movable hanger arm 14 is fixed at a position beyond the vertical line L when the hanger arm 14 is rotated by a certain angle in the unlatching direction.
Therefore, due to the relative positional relationship between the tapered surface 15 of the hanger arm 14 and the hooking part 22 of the container 21,
When the attachment end 17b of the spring member 17 to the hanger arm 14 is located on the hanging direction side with respect to the vertical line L, the hanger arm 14 is attached to the spring member 1.
When the end portion 17b is located in the unlatching direction, the hanger arm 14 is rotated in the unlatching direction by the tensile force of the spring member 17. It's getting old.

Further, the pair of front and rear hanger arms 14 are connected by a connecting shaft 18 having an operating section 18a, and the pair of front and rear hanger arms 14 can be rotated in synchronization with each other.
By gripping the hanger arm 14, the hanger arm 14, which is rotating in the unlatching direction, can be forcibly rotated in the locking direction.

The container 21 has a basket shape suitable for storing fabrics and other conveyed objects therein, and is configured so that the conveyed objects can be taken in and out through an opening at the top or a door provided on the side so as to be openable and closable. A hanging part 2 that is raised to a higher dimension at the upper part of the frame material constituting both side frames and that is hung on the hook 19 of each hanger arm 14.
2 is formed.

In the suspended conveyor having the above structure, caster boxes 23 are provided at the four corners of the lower part of the container 21, and the caster boxes 23 support casters 24 so as to be able to rise and fall.

The caster 24 has a structure in which a shaft body 26 having a flange portion 25 is erected on the upper part thereof. On the other hand, in the case of the caster box 23 that supports the caster 24, a hole 3 through which the shaft 26 of the caster 24 passes is formed in the upper wall 30 and the lower wall 31.
2 and 33 are formed, and the upper wall 30 has a cylindrical body 34 that communicates with the hole 32 formed in the upper wall 30 and fits and supports the shaft body 26 of the caster 24 so as to be movable in the axial direction. It is formed protrudingly within the caster box 23. A certain space is formed between the lower surface 35 of this cylindrical body 34 and the lower wall 31, and a flange 25 provided on the shaft body 26 of the caster 24 supported by the cylindrical body 34 is provided in this space. is located, and this collar part 25
A coiled spring member 27 is installed between the upper wall 30 and the upper wall 30 to constantly bias the caster 24 downward, that is, in the downward direction. However,
The rise of the caster 24 is regulated by the collar 25 coming into contact with the lower surface 35 of the cylindrical body 34, and the lowering of the caster 24 is regulated by the contact of the collar 25 with the lower wall 31 of the caster box 23. A cylindrical body 34 that regulates the amount of rise and fall of this caster 24
and the lower wall 31. When the container 21 suspended on the carrier 11 is moved to the transfer rail section 2, the caster 24, which has descended due to the bias of the spring member 27 as the container 21 rises, will reach the floor. The distance is sufficient to maintain the state in pressure contact with the surface 36.

28 is a bearing, and 29 is a cap body attached to the upper side of the box 23 to allow the shaft body 26 to rise.

Therefore, when the carrier 11 moves from the transfer rail section 2 of the rail 1 via the connecting rail section 4 to the stop rail section 3 installed at a low position, the container 21 descends due to the height difference of the rail 1, while The caster 24, which is constantly biased downward by the spring member 27, is in the process of lowering the container 21 due to changes in the height of the stop rail portion 3, as shown in FIG. 3A.
As shown in FIG. 2, the shaft body 26 of the caster 24 rises relatively against the biasing force of the spring member 27, and the flange 2
5 is in contact with the lower surface 35 of the cylinder 34 and the container 21
It will bear the weight of

Conversely, when the carrier 11 is moved from the stop rail section 3 of the rail 1 via the connecting rail section 4 to the transfer rail section 2 installed at a higher level, the container 21 suspended and supported by the carrier 11 also rises due to the height difference. However, as the container 21 rises, the biasing force of the spring member 27 is gradually activated, and the caster 24 is automatically lowered by the biasing force, even if the container 21 is completely suspended from the carrier 11. , as shown in FIG. 3B, the container 21
Only the caster 24 is brought into contact with the floor by the spring pressure of the spring member 27 without receiving the weight of the caster 24.

Therefore, even when the container 21 is moving on the transfer rail section 2, the caster 24 supported at the lower part of the container 21 is elastically grounded to the floor surface by the spring member 27, so that the container 21 is moved. The casters 24 prevent the container 21 from rolling, allowing stable movement of the container 21.

[Effects of the invention] As described above, the present invention includes a hanger rail installed on a conveyance line, a carrier that runs freely on the hanger rail, and a hanger that has casters at the bottom and is suspended and supported by the carrier. The hanger rail consists of a transfer rail section installed at a high level of the conveyance line, a stop rail section installed at a low level, and a connecting rail section that connects the stop rail section and the transfer rail section with a difference in height. A suspended conveyance device having a structure in which a shaft body having a flange is provided upright on the upper part of the caster, and is supported in a lower part of the shaft body so as to be movable up and down, and the flange of the shaft body and Since a spring member is installed between the lower part of the container to constantly bias the caster downward, when the carrier is moved from the stop rail part to the transfer rail part installed at a higher level via the connecting rail part, the spring member is moved due to the difference in height. The biasing force works and automatically lowers the casters, and even if the container is completely suspended from the carrier, only the casters are elastically grounded to the floor by the spring member without receiving the weight of the container. The casters are always placed on the floor on the conveyor line, and because the casters prevent the container from rolling during movement, the container can be moved extremely smoothly to the loading or unloading side of the conveyor line. Transport work can be carried out easily.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the conveyance device according to the invention, FIG. 2A is a front view of the main part showing a suspension mechanism for a carrier and a container, and FIG. 2B is a perspective view of the main part.
Figure 3A is a sectional view of the main part showing the grounding state of the carrier when it moves to the stop rail part of the rail, and Figure 3B is a main part showing the grounding state of the caster when it moves to the transfer rail part of the rail. FIG. 1...Hanger rail, 2...Transfer rail section,
3...Stop rail part, 4...Connection rail part, 11
... Carrier, 21 ... Container, 24 ... Caster, 25 ... Flange, 26 ... Shaft, 27 ...
Spring member.

Claims (1)

[Scope of utility model registration request] A hanger rail installed on the conveyance line,
The hanger rail consists of a carrier that runs freely on the hanger rail, and a container that has casters at the bottom and is suspended and supported by the carrier. and a connecting rail section that connects the stop rail section with a difference in height and the transfer rail section, the hanging conveyance device having a flange section on the upper part of the caster. A suspension characterized in that a shaft is erected, supported at the bottom of the shaft so as to be able to rise and fall, and a spring member is attached between the collar of the shaft and the bottom of the container to constantly bias the caster downward. Lower type conveyance device.