JP2606301Y2 - Low-vibration chain / sprocket device for raising / lowering a parking garage of a multi-story parking device - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to a relates to a chain / sprocket assembly for use as a drive for raising and lowering the parking stand definitive to steric parking equipment, particularly, the device less noisy at low vibration, for example, The present invention relates to a device in which no vertical vibration or the like is generated in a driven sprocket even when a chain is hung around an upper driving sprocket and a lower driven sprocket to rotate, and the vibration is low and noise is reduced.

[0002]

2. Description of the Related Art In a roller chain used as one of the driving devices of a multi-story parking device, as shown in FIG. 5, two sprockets 101 (or sprockets 101) provided with a plurality of recesses 102 at equal intervals in the circumferential direction are provided. (More than that), a pair of parallel links 104 having an oval shape are sequentially wound around a roller chain 103 connected endlessly with a pin 105 as a hinge, and the sprocket 101 is rotated by a motor via a reduction gear or the like. It has become.

[0003]

However, in the chain / sprocket device having such a structure, the link 1 of the chain 103 rotating on the sprocket 101 is rotated.
Since the shape of the chain 04 is polygonal as shown by the one-dot chain line A in FIG. 5, the chain is not smoothly turned, causing vibration and noise. For example, in the apparatus of FIG. 5, if the upper side is a driving sprocket and the lower side is a driven sprocket, the driven side generates vertical vibrations due to the polygonal rotation of the chain wound around the driving side sprocket, which generates vibration and noise. Was causing it.

Further, since the link 104 turns polygonally, the shape of the sprocket 101 is also limited so as to allow the polygonal locus of this link.
As shown in FIG. 2B, it is necessary to have a structure in which the sprocket 101 is sandwiched between the parallel pairs of the links 103.

[0005] The present invention is based on such a conventional multi-story parking device.
It is possible to solve the problems of the chain / sprocket device for raising / lowering the parking garage , and in particular, to solve the problem that the chain generates vibrations due to the turning of the sprocket portion in a polygonal shape, thereby performing low vibration driving. The purpose of the present invention is to provide a low vibration type chain / sprocket device that can be used.

The low vibration chain / sprocket device for raising and lowering the parking garage of the multi-story parking device according to the present invention which achieves the above object is characterized in that the concave portions for pin fitting which are opened radially outward are equally spaced in the circumferential direction. At least two of the circular sprockets, and at least two
And a piece of link chain linked pairs of these links by sequentially pin multiple pairs to the hinge endless as one unit, configured to Kai over the pin of the chain so as to engage the recess of the sprocket in chain sprocket apparatus with, the sprocket includes a ring portion in which the pin-fitting recess is provided, integrally along the annular portion
And a link engagement circumferential surface provided on the sprocket, and a side of the link pair forming the chain on the inner side of the turn is a circular arc shape having a curvature that engages with the link engagement circumferential surface of the sprocket without gaps. Is provided.

[0007] According to such a configuration, when the pin and the link forming the chain are driven by fitting the pin into the concave portion of the sprocket, the curved surface of the link has a circumferential surface for link engagement of the sprocket. Therefore, vibration and noise are suppressed.

[0008] The sprocket of the present invention may be provided with a circumferential surface for link engagement on both outer sides in the width direction of an annular portion having a concave portion for pin fitting located at the center, or conversely. Alternatively, an annular portion having a pin-fitting concave portion may be provided on both outer sides in the width direction of the link engaging circumferential surface located at the center. In the case of using the former sprocket, the chain is formed such that a pair of unit links arranged in parallel is provided with an interval, and the ring portion of the sprocket is inserted into the gap with the interval to form a link engaging circle. A clearance-free engagement between the peripheral surface and the link is provided. When the latter sprocket is used, a plurality of links forming a unit link are sequentially connected in such a manner that a gap in a width direction is not opened as much as possible, and are inserted between annular portions forming a pair of sprockets. The circumferential surface for link engagement formed between the annular portions is provided with engagement without any gap.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. ◇ FIG. 1 shows an example of an improved type of the chain / sprocket device of FIG. 5 described as the above-mentioned conventional example. In this figure, reference numeral 1 denotes a sprocket. A plurality of (eight in the example of FIG. 1) recesses 12 that open outward in the direction are provided at equal intervals in the circumferential direction, and the recesses 12 are provided on both sides in the width direction of the ring portion 11. And a circumferential surface 13 for link engagement provided so as to form a circumferential surface having a diameter slightly smaller than the bottom portion of the shaft, and is configured to be rotated by a drive motor (not shown) by a shaft 14.

Reference numeral 2 denotes a chain having an endlessly connected structure as a whole, and a plurality of parallel links 21 are rotatably connected by pins 22 using a pair of parallel links 21 as a unit.

The feature of the chain of this embodiment is that, as shown in FIG. 1A, one side 23 located inside the endless track of the link 21 is formed by the link engaging circumferential surface 13 of the sprocket 1. Has an arc shape that matches the curvature of
Thereby, when the pin 22 engages with the sprocket ring part 12, the arc-shaped side 23 of the link 21 is provided so as to smoothly engage with the link engaging circumferential surface 13. . Reference numeral 24 denotes a side located outside the linear endless track.

With such a configuration, when the link 21 of the chain 2 engages with the sprocket 1 or rotates together with the sprocket 1, and when the link 21 is disengaged from the sprocket 1, a smooth turning motion can be performed, and vibration and The effect of suppressing generation of noise is obtained.

FIG. 2 shows such a sprocket annular portion 1.
FIG. 3 shows an engagement state between the second concave portion 12 and the link 21, and FIG. 3 shows another link having both sides formed in an arc shape.

FIG. 4 shows another embodiment of the present invention. In this embodiment, a pair of a large number of links 41 each having an arcuate shape on both sides is used as a unit, and the multiple units are used. Are connected endlessly by a pin 42 to form a chain 40, and the pin is projected from the link 41 to both sides in the width direction.

On the other hand, the sprocket 30 includes a pair of parallel annular portions 31 having recesses 32 spaced at equal intervals in the circumferential direction.
A circumferential surface 33 for link engagement having a diameter slightly smaller than that of the concave portion 32 formed between the annular portions 31 is provided, and the pins 42 of the chain 40 are engaged with the concave portions 32 of the annular portion 31. The arc-shaped side of the link 41 smoothly engages with the link engaging circumferential surface 33 of the sprocket to rotate.

According to such a configuration, as in the embodiment of FIG. 1, smooth engagement and turning of the chain with the sprocket can be obtained, and the effect of securing the chain drive with reduced vibration and noise can be obtained. is there.

[0017]

[Effect of the Invention] As described above, the multi-story parking device of the present invention is provided.
According to the low-vibration chain / sprocket device for raising and lowering the parking garage , the link is engaged with the sprocket without any gap as compared with the conventional device in which the chain has a polygonal shape and turns the sprocket portion, and furthermore, the link is engaged. In this case, since the driving is performed smoothly, the generation of the vibration is suppressed, and the driving can be performed with the noise suppressed accordingly.

[Brief description of the drawings]

FIG. 1 is a view for explaining the configuration of a low-vibration type chain / sprocket device according to an embodiment of the present invention, wherein (a) is a front view of the entirety, and (b) is a plan view of the chain. Figure, (c) is a side view of the chain,

FIG. 2 is a diagram showing a state of engagement between a chain pin and a sprocket in the embodiment.

FIG. 3 is a diagram showing the shape of a link according to another example;

FIG. 4 is a view for explaining a configuration of a low-vibration chain / sprocket device according to another embodiment of the present invention;
(A) is an overall front view, (b) is a sectional view taken along line AA of (a), (c) is a plan view of the chain, (d) is a side view of the chain,

5A and 5B are diagrams for explaining the configuration of a conventional chain / sprocket device, where FIG. 5A is an overall front view, and FIG.
Is a plan view of the chain, and (c) is a side view of the chain.

[Explanation of symbols]

1, 30, 101: sprocket, 2, 40, 10
3 ... Chain, 11, 31 ... Circular part, 12,3
2, 102: recess, 13, 33: circumferential surface for link engagement, 21, 41: link, 22, 42: pin.

Continuation of front page (56) References JP-A-56-18146 (JP, A) JP-A-6-280411 (JP, A) JP-A-57-208342 (JP, A) JP-A-1-178271 (JP) , U) Fully open sho 59-195238 (JP, U) Fully open sho 57-86609 (JP, U) Really open sho 54-169667 (JP, U) Fully open sho 55-54221 (JP, U) Full open sho 56-29341 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16G 13/02-13/12 F16H 55/30 F16H 7/00-7/24 E04H 6/00-6 / 44

Claims (3)

(57) [Scope of request for utility model registration] A large number of pin-fitting recesses opened radially outward are provided at equal intervals in the circumferential direction, and at least two circular sprockets and at least two link pairs arranged in parallel are formed as one unit. A chain in which many of the link pairs are connected endlessly by sequentially using pins as hinges,
In chain sprocket assembly in which the pins of the chain configured to be Kai hung so as to engage the recess of the sprocket, the sprocket includes a ring portion in which the pin-fitting recess is provided, the annular portion And a link engagement circumferential surface integrally provided along the link, and a side of the link pair constituting the chain on the inner side of the turning is formed with a link engagement circumferential surface of the sprocket. A low-vibration chain / sprocket device for raising and lowering a parking pedestal of a multi-story parking device, wherein the chain / sprocket device is provided in an arc shape having a curvature that engages without a gap. 2. The sprocket according to claim 1, wherein the sprocket has a ring portion located in the center where the pin fitting concave portion is provided in the width direction, and a link engagement circle located on both outer sides in the width direction of the ring portion. A low-vibration chain for raising and lowering a parking garage of a multi-story parking device, wherein the low-vibration chain has a peripheral surface and is provided so that the annular portion of each of the sprockets is fitted into an intermediate portion of a link pair constituting the chain. / Sprocket device. 3. The sprocket according to claim 1, wherein the sprocket is provided with a link engaging circumferential surface located at the center in the width direction, and a pin fitting concave portion located on both outer sides in the width direction of the link engaging circumferential surface. A link pair forming a chain, the link pair forming a chain being provided so as to be inserted into an intermediate portion of the ring portion, and a low link for raising and lowering a parking pedestal of a multi-story parking device. Vibrating chain / sprocket device.