TWM482010U - Chain - Google Patents

Description

Chain

The present invention relates to a chain, and more particularly to a chain in which three elements are connected in series.

In the design, the traditional chain is usually made up of five kinds of components: the inner chain plate, the outer chain plate, the chain roller, the bushing, and the chain shaft. The chain of five components can be connected to the transmission. Purpose, but when assembling, there are many necessary components, and the assembly steps are also complicated, so the assembly cost is relatively high.

The purpose of the present invention is to provide a chain that can streamline the necessary components and reduce assembly costs and assembly steps.

The chain of the present invention comprises a plurality of chain plate units, and a plurality of serially connected units respectively connected to two adjacent ones of the chain plate units, each chain plate unit comprising a first chain plate, and a piece and a a second link plate opposite to the first link plate, the first and second link plates each have a plate body, a large protruding column protruding from the plate body, a protruding from the plate body and the protruding a small stud disposed at intervals of the column, a first perforation extending through the main body of the plate and the large stud, and a penetrating through the plate body and the small stud a second through hole, the small stud of the second link plate coaxially penetrates the first through hole of the first link plate, and the small stud of the first link plate coaxially penetrates the first through hole of the second link plate Or within the first perforation of the second link of the adjacent link unit.

The beneficial effect of the present invention is that the large protruding column and the small protruding column of the first and second chain plates are disposed coaxially inside and outside, so that the bushing and the chain roller of the traditional chain can be replaced respectively, thereby achieving the necessary components. And the purpose of reducing assembly costs and assembly steps.

2‧‧‧Chain unit

20‧‧‧First chain plate

20’‧‧‧Second chain plate

21‧‧‧ board body

211‧‧‧Outer end

212‧‧‧Internal end

213‧‧ ‧Bridge

22‧‧‧Big pillar

23‧‧‧Small stud

24‧‧‧First perforation

25‧‧‧Second perforation

3‧‧‧Sequence unit

31‧‧‧Spliced chain plate

311‧‧‧Splicing the outer end

312‧‧‧ tandem inner end

313‧‧‧ inclined section

32‧‧‧Chain

320‧‧‧ center axis

4‧‧‧ Length direction

L1‧‧‧ length

L2‧‧‧ length

L3‧‧‧ thickness

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a front view of a first preferred embodiment of the present invention; FIG. - FIG. 3 is an exploded perspective view showing a chain plate unit of the first preferred embodiment; FIG. 4 is a sectional view similar to FIG. 2, illustrating one of the novel chains 2 is a cross-sectional view similar to FIG. 2, showing a third preferred embodiment of the novel chain; FIG. 6 is a partial perspective view of the third preferred embodiment, illustrating the chain separately Figure 1 is a cross-sectional view similar to Figure 2, showing a fourth preferred embodiment of the novel chain; and Figure 8 is a partial cross-sectional exploded view of the fourth preferred embodiment .

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1, 2, and 3, a first preferred embodiment of the present novel chain includes a plurality of link unit 2 disposed along a length direction of about 4, and a plurality of phases respectively connected in series with the link unit 2 Two of the adjacent ones are connected in series. Each of the link unit 2 includes a first chain plate 20 and a second chain plate 20' aligned with the inner and outer portions of the first chain plate 20. The serial units 3 each include two pieces spanning the chain plates. a chain link 31 of two adjacent ones of the units 2, and two chain shafts 32 spaced apart from each other and connected in series to the chain link plates 31 and the chain plate units 2, each chain shaft 32 has A central axis 320, the central axis 320 of the chain shafts 32 are perpendicular to the longitudinal direction 4, and the serial link plates 31 are respectively located outside the first and second link plates 20, 20'.

In this embodiment, the first link plate 20 and the second link plate 20' of the chain plate unit 2 have the same structure, and both have a plate body 21 extending along the length direction 4, and a plate body 21 protruding from the plate body 21. a large stud 22, a small stud 23 protruding from the plate body 21 and spaced apart from the large stud 22, a first through hole 24 penetrating the plate body 21 and the large stud 22, and a penetrating plate The body 21 and the second through hole 25 of the small stud 23 .

The length L1 of the large stud 22 is smaller than the length L2 of the small stud 23, and the sum of the length L1 of the large stud 22 and the thickness L3 of the plate body 21 is equal to the length L2 of the small stud 22, but in design As long as the small The length L2 of the column 22 is not greater than the sum of the length L1 of the large stud 22 and the thickness L3 of the plate body 21. The large stud 22, the small stud 23, the first through hole 24 and the second through hole 25 both surround the central axis 320 of one of the chain shafts 32, and the second chain plate 20' is small. The stud 23 can penetrate the first through hole 24 of the first link 20, and the small stud 23 of the first link 20 can penetrate the first through hole 24 of the second link 20'. The chain shaft 32 passes through the serially connected chain plates 31 and the second perforations 25 of the first chain plate 20 or the second chain plate 20' of the chain plate units 2, respectively.

That is, the small studs 23 on the first and second link plates 20, 20' of the chain plate unit 2 of the embodiment can replace the bushing of the conventional chain, and the first and second chain plates 20, 20 'The large studs 22 can replace the chain rolling of the traditional chain. Therefore, in the embodiment, when the chain is assembled, only the inner and outer portions of the first and second link plates 20, 20' having the same structure are aligned, and the chain link 31 and the chain shaft of the serial connection unit 3 are used. 32 can be assembled in series to complete the assembly work. Therefore, the first preferred embodiment of the present invention can not only simplify the necessary components but also reduce the assembly cost and ease of assembly, compared with the conventional chain.

Referring to FIG. 4, the second preferred embodiment of the present invention has a configuration similar to that of the first preferred embodiment, except that the first and second link plates 20, 20' have large protrusions 22 The length L1 is equal to the length L2 of the small stud 23.

Referring to Figures 5 and 6, a third preferred embodiment of the novel chain also includes a plurality of link unit 2, and a plurality of tandem units 3 respectively connected in series with two of the adjacent ones of the link units 2. Each of the series units 3 includes one The plate is connected to the link plate 31, and a chain shaft 32. The chain unit 2 also includes a first chain plate 20 and a second chain plate 20' disposed inside and outside the first chain plate 20. The first and second chain plates 20, 20' have the same structure. However, the manner of the corresponding arrangement is slightly different from that of the first preferred embodiment, that is, the first and second link plates 20, 20' of the first preferred embodiment of the present invention are internally and externally aligned, and the third comparison is The first and second link plates 20, 20' of the preferred embodiment are internally and externally staggered, and the serial link plates 31 of the serial connection units 3 and the first and second link plates 20, 20 of the link plate units 2 One of them is aligned inside and outside.

Each of the first and second link plates 20, 20' has a plate body 21, a large protrusion 22, a small protrusion 23, and a first through hole 24 extending through the plate body 21 and the large protrusion 22. And a second through hole 25 extending through the small stud 23 and the plate body 21. The plate body 21 has an outer protruding end portion 211 spaced apart from the longitudinal direction 4 and having a height difference, an inner extending end portion 212, and an obliquely connecting the outer protruding end portion 211 and the inner moving end portion 212. The bridge portion 213 , the large protrusion 22 and the first through hole 24 are disposed at the outer protrusion end 211 , and the small protrusion 23 and the second through hole 25 are disposed at the inner movement end portion 212 . Further, the series inner end portion 312 of the serial link plate 31 has a through hole 310 which is larger than the outer diameter of the large protrusion 22.

Further, the serial link plates 31 of the tandem unit 3 of the first preferred embodiment are in the form of a flat plate and are respectively located outside the link plate units 2, and the serial link plates 31 of the third preferred embodiment. Curved and having a series outer end 311, a tandem inner end 312, and a connection outside the series An inclined portion 313 between the end portion 311 and the serially connected inner end portion 312, and the serially connected outer end portions 311 of the serially connected link plates 31 are respectively moved within the first and second link plates 20, 20' The outer ends of the end portions 212 are located on the inner side of the protruding end portions 211 of the first and second link plates 20, 20', respectively. By the above-described structural changes, it is also possible to omit the bushing and the chain roller, and to reduce the assembly cost and the ease of assembly.

Referring to Figures 7 and 8, a fourth preferred embodiment of the present invention has a configuration similar to that of the third preferred embodiment, except that the large stud 22 and the first through hole 24 are disposed in the first And the inner end portion 212 of the second link plate 20, 20' is disposed, and the small stud 23 and the second through hole 25 are disposed at the protruding end portion 211 of the first and second link plates 20, 20'. Moreover, the series inner end portion 312 of the serial link plate 31 has a through hole 310 which is larger than the outer diameter of the small stud 23 . The above-mentioned structural changes can also achieve the effects of omitting the bushing and the chain roller, and reducing assembly cost and ease of assembly.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

2‧‧‧Chain unit

20‧‧‧First chain plate

20’‧‧‧Second chain plate

21‧‧‧ board body

22‧‧‧Big pillar

23‧‧‧Small stud

24‧‧‧First perforation

25‧‧‧Second perforation

3‧‧‧Sequence unit

31‧‧‧Spliced chain plate

32‧‧‧Chain

320‧‧‧ center axis

4‧‧‧ Length direction

L1‧‧‧ length

L2‧‧‧ length

L3‧‧‧ thickness

Claims (13)

A chain comprising: a plurality of chain plate units, each chain plate unit comprising a first chain plate, and a second chain plate spaced from the inner and outer sides of the first chain plate, the first and second chain plates are The utility model has a plate body, a large protruding column protruding from the plate body, a small protruding column protruding from the plate body and spaced apart from the large protruding column, a first perforation extending through the plate body and the large protruding column, And a second through hole penetrating the plate body and the small protruding column, the small protruding column of the second chain plate coaxially penetrating the first through hole of the first chain plate, and the small protruding column of the first chain plate Coaxially penetrating the first through hole of the second link plate, or the first through hole of the second link plate of the adjacent link plate unit; and the plurality of serial connection units respectively connected to the phase of the link plate unit Two of the neighbors. The chain of claim 1, wherein the length of the large stud of the first and second link plates of the chain plate unit is smaller than the length of the small stud, and the length of the small stud is not greater than the large protrusion The sum of the length of the column and the thickness of the link body. The chain of claim 1, wherein the length of the large stud of the first and second link plates of the chain plate unit is equal to the length of the small stud. The chain of claim 2, wherein the first and second link plates of the link plate unit are internally and externally aligned, and the series connection units comprise two pieces respectively adjacent to the link plate units. Two of them a pair of outer chain plates, and two chain links respectively connecting the chain links and the chain plate units, wherein the chain shafts respectively pass through the first and second chain plates of the chain plate units Second perforation. The chain of claim 2 or claim 3, wherein the large studs, the small studs, the first perforations and the second perforations of the first and second link plates of the chain plate unit surround the chain shafts One of the central axes of one. The chain of claim 1, wherein the first and second links of the chain unit are opposite and offset. The chain of claim 6, wherein the plate bodies of the first and second link plates each have an outer projecting end portion, an inner shift end portion spaced apart from the outer projecting end portion along a length direction, and A bridge portion that obliquely connects the outer protruding end portion and the inner moving end portion. The chain of claim 7, wherein the large protrusions of the first and second link plates and the first through hole are disposed at one of the outer protruding end portion and the inner end portion of the plate body And the small stud and the second through hole are disposed on the other of the outer protruding end portion and the inner moving end portion. The chain of claim 7, wherein the series connection unit comprises a chain shaft, and a piece of serial link plate having a serially connected outer end portion and a tandem outer end portion a spaced-apart inner end portion and an inclined portion between the tandem outer end portion and the tandem inner end portion, the tandem outer end portion being located in one of the first and second link plates The inner side of the inner end portion, and the inner portion of the inner portion An end portion is located inside the outer protruding end portion of one of the first and second link plates, and the chain shaft is connected in series with the first and second link plates of one of the chain plate units and the Connect the chain plates in series. The chain of claim 8, wherein the length of the large stud is less than the length of the stud. The chain of claim 8, wherein the length of the large stud is equal to the length of the stud. The chain of claim 9, wherein the series inner end of the serial link has a through hole that is larger than an outer diameter of the small stud. The chain of claim 9, wherein the series inner end of the serial link has a through hole that is larger than an outer diameter of the large stud.