JPH062058Y2 - Non-displacement attachment chain - Google Patents

Description

[Detailed description of the device] "Industrial application field" The present invention applies to a vertical circulation type multi-story parking lot or a horizontal circulation type multi-story parking lot with an attachment chain, in which the attachment part of the attachment chain of the cage or pallet changes from straight running to turning running. The present invention relates to a non-displacement attachment chain that does not displace in the radial direction even when it is moved.

"Prior Art" A conventional attachment chain is shown in Figs. 7 and 8.

One unit of the attachment chain is two chain rollers 2 and 3 that connect the chain link 5, one end of each of the truss arms 9 and 10 with the shafts of the chain rollers 2 and 3 being pin-supported, and one end of the truss arms 9 and 10. The sprocket 4 is swung by the attachment mounting portion 7 which is supported by a pin.

When the fulcrums of the two chain rollers 2 and 3 come on the pitch circle of the sprocket 4, the position of the chain rollers 2 and 3 becomes the position connecting the chords of the pitch circle of the sprocket 4, and the attachment mounting portion 7 becomes the radial direction of the sprocket 4. It was forced to move to the center of the sprocket 4 along, and the turning radius of the attachment mounting portion 7 was reduced.

[Problems to be solved by the invention] In the vertical circulation type multi-level parking lot or horizontal circulation type multi-level parking lot with the conventional attachment chain, when the attachment mounting part of the cage or pallet shifts from traveling in the sprocket tangential direction to turning traveling, radial direction It caused the cage to move sideways, causing the cage or pallet to sway, and the impact noise to be generated.

Further, in recent years, there has been a demand for speeding up of a multistory parking lot, and the above-mentioned problems have hindered speeding up.

It is an object of the present invention to provide a displacement-free attachment chain that solves the above-mentioned problems of the conventional one and enables low noise and high speed.

"Means for Solving the Problem" The present invention solves the above-mentioned conventional problems, and the shafts of three chain rollers constituting one unit of the attachment chain are aligned in a line when traveling on the tangent line of the sprocket pitch circle. An attachment arm having an attachment mounting portion at its tip is pivotally attached to the center of the chain roller shafts of the chain roller shafts, which are connected side by side, and the attachment arms are chains at both ends of the three chain roller shafts. Since it is a non-displacement attachment chain that is freely supported in the normal direction of the sprocket by supporting hardware that is pivotally mounted coaxially with the roller shaft, the center chain roller shaft pivots on the sprocket pitch circle to attach the attachment. The part does not move in the radial direction of the sprocket.

[Embodiment] A first embodiment of the present invention is shown in FIGS.

In the first embodiment, one unit is composed of three chain rollers 1, 2 and 3, and when the sprocket 4 travels on the pitch circle tangent line,
They are connected by chain links 5 so as to line up in a line.

The lower end of the attachment arm 6 is pin-supported by the shaft of the central chain roller 1, the attachment arm 7 is provided at the opposite end, and the elongated hole 8 is formed at the center line portion.

The front and rear truss arms 9 and 10 are pin-supported by the shafts of the front and rear chain rollers 2 and 3, respectively, and the pins 11 are joined on the center line of the elongated hole 8 vertically formed in the upper part of the attachment arm 6 to move inside the elongated hole 8. To do. Pin 11 is sprocket 4
It also serves as a guide pin for the attachment arm 6 so that it can be freely supported only in the direction perpendicular to the tangent to the pitch circle. That is, when the axes of the chain rollers 1, 2 and 3 come on the sprocket 4 pitch circle, the attachment mounting portion 7, the intersection 11 of the truss arms 9 and 10 and the axis of the chain roller 1 are aligned on the normal line of the sprocket 4 pitch circle. .

As described above, the attachment mounting portion 7 turns without causing displacement in the radial direction of the sprocket 4 from straight running to turning running.

A second embodiment of the present invention is shown in FIGS.

The reference numerals 1 to 7 are the same as those in the first embodiment and are designated by the same reference numerals.

In the second embodiment, one unit of the attachment chain is chain rollers 1, 2,
3 is sandwiched. A shaft of the chain roller 1 and a shaft of the guide roller 13 are coaxially attached to the attachment arm 6, and an attachment attachment portion 7 is provided at the opposite end. Oblong holes 13 and 14 are provided above and below the center of the triangular link plate 12 so as to guide the attachment arm 6 in the direction perpendicular to the line connecting the chain rollers 2 and 3. The positions and stroke lengths of the elongated holes 13 and 14 are determined from the center of the line connecting the axes of the chain rollers 1, 2 and 3 when the axes of the chain rollers 1, 2 and 3 are located on the pitch circle of the sprocket 4 to the axis of the chain roller 1. The vertical length up to.

As the chain roller 1 travels on the pitch circle of the sprocket 4 from the intersection of the pitch circle of the sprocket 4 and its tangent line, the attachment arm 6 loses the outward restraint in the elongated holes 13 and 14 directions, so that the out guide rail 15 is removed. It is provided with a pitch circular curvature of the sprocket 4 up to a position of 45 ° from the intersection, and a guide roller 16 provided coaxially with the axes of the chain rollers 1, 2 and 3 is guided to the intersection to maintain the constraint even in straight running. Travel guide rails 17 and 18 are provided inside and outside.

The shape of the sprocket teeth that mesh with the chain roller 1 is
Since the chain roller 1 deviates from the pitch division of the sprocket teeth when passing through the intersection, the sprocket long groove teeth 19 are used.

As described above, the same effect as that of the first embodiment can be obtained.

"Effect of the device" The non-displacement attachment chain according to the present invention causes the attachment mounting part to travel while maintaining a space on the tangent line of the sprocket pitch circle in straight running, but even when the vehicle moves to a turning motion, the distance from the sprocket pitch circle becomes large. Keep the same as straight running.

Due to the above, when it is used in a mechanical parking lot, etc., it has excellent effects such as preventing displacement of the cage or pallet, preventing sideways shaking or impact sound due to it, and further speeding up. Is.

[Brief description of drawings]

1 to 3 show a first embodiment of the present invention, FIG. 1 is an overall view of the system, and FIG. 2 is a view taken in the direction of arrow A in FIG.
FIG. 3 is a sectional view taken along the line BB in FIG. 2, FIGS. 4 to 6 are second embodiments, and FIG. 4 is an overall view of the system, and FIG.
FIG. 6 is a view taken in the direction of arrow C in FIG. 4, FIG. 6 is a sectional view taken along line DD of FIG. 5, FIGS. 7 and 8 are conventional attachment chains, and FIG. 7 is an overall view and FIG. It is a view on arrow E of FIG. 1, 2, 3: Chain roller 4: Sprocket, 5: Chain link 6: Attachment arm 7: Attachment mounting part 8: Long hole, 9, 10: Truss arm 11: Pin connection, 12: Triangle link plate 13, 14: Long hole, 15: Out guide rail 16: Guide roller 17, 18: Traveling guide rail 19: Sprocket long groove tooth

Claims (1)

[Scope of utility model registration request] 1. The shafts of three chain rollers constituting one unit of an attachment chain are connected by a chain link so as to be aligned in a line when traveling on a tangent line of a sprocket pitch circle, and the center of the shafts of the chain rollers is connected. An attachment arm having an attachment mounting portion at its tip is pivotally attached to the shaft of the chain roller, and the attachment arm is pivotally attached coaxially to the shafts of the chain rollers at both ends of the shafts of the three chain rollers. A non-displacement attachment chain characterized by being freely supported in the normal direction of the sprocket.