CN2866977Y

CN2866977Y - Chain

Info

Publication number: CN2866977Y
Application number: CN 200520132183
Authority: CN
Inventors: 吴华田
Original assignee: Ta Ya Chain Co Ltd
Current assignee: Ta Ya Chain Co Ltd
Priority date: 2005-12-15
Filing date: 2005-12-15
Publication date: 2007-02-07
Anticipated expiration: 2015-12-15

Abstract

A chain is a ring shaped comprising a plurality of single-chains wherein each single-chain includes double parallel inner chain pieces, double outer chain pieces connected parallel with the ends of the inner chain pieces and a chain pin threading through the chain pin holes of the inner and outer chain pieces to make connection. The blow-holes are provided on the side surface of the inner pieces or the outer piece to form reinforcement elements on the opposite side. The utility model can reduce the thickness of the chain piece to fit the specified mechanical strength, thereby making the whole chain lighter, saving material and reducing cost.

Description

Chain

Technical field

The utility model relates to a kind of chain, particularly relates to a kind of chain of using as transmission in the small-sized load driving mechanism that is applicable to.

Background technique

Chain be a kind of be used to arrange in pairs or groups be connected between several sprocket wheels main member as power transmission, therefore, in the design process of chain, can be because the purposes of this chain and the difference of objective for implementation, and do different thin portion change research and development designs.

With the chain that is applied in the bicycle is example, known chain is to be concatenated into a ring bodies by several cellular chain sheet groups at present, as shown in Figure 5, each cellular chain sheet group (20) mainly has two inner chain sheets (21), two outer chain sheets (22) and chain pin (23), this two inner chain sheet (21) is parallel side by side, this two outer chain sheet (22) is divided into this two inner chain sheet (21) both sides, end arranged side by side, those chain pins (23) give the pin joint one with two outer chain sheets (22) and two inner chain sheets (21) and the end that connects, and between between two inner chain sheets (21), establish a chain roller free to rotate, or make this annular link chain that is concatenated into by several cellular chain sheet groups (20) can be connected between several sprocket wheels usefulness whereby as transmission with respect to chain pin (23) outside group.

And if above-mentioned chain is when being applied to the chain of small-sized driving mechanism, though mechanical strengths such as its tensile strength and endurance life are required much larger than this driving mechanism, but compare ground, it is bigger than normal that inside and outside chain sheet in those cellular chain sheet groups has thickness, the shortcoming that cost of material is higher, so the weight of chain is increased, and it is many that cost is improved.

The model utility content

The purpose of this utility model is to be to provide a kind of chain, the chain consume material that before had been applied in the small-sized load driving mechanism is on the high side in order to improve to use, Heavy Weight and the high shortcoming of cost, by the chain lightweight, reach the effect of saving material, weight reduction and reducing cost.

In order to achieve the above object, the utility model provides a kind of chain, this chain is to be concatenated into ring bodies by several cellular chain sheet groups, those cellular chain sheet groups have two inner chain sheets and are shape arranged side by side, two outer chain sheets are connected to this outside, two inner chain sheets end, and one chain pin be arranged in this side by side together within, the chain pin-and-hole of outer chain sheet end, wherein form depressed part on inner chain sheet or the outer chain sheet, as the reinforcement part of improving chain sheet intensity, the utility model is meeting under the situation of required mechanical strength the chain sheet, further reduced its chain sheet thickness, make whole chain lightweight, and then reach the saving material, weight reduction and the purpose that reduces cost.

In the aforesaid chain, the reinforcement part of this inside and outside chain sheet can be at least one vertical bar shape protuberance and is located at this chain medium film section waist place, or be around the ring protuberance that forms in this chain sheet periphery, or select a kind of chain sheet in this inside and outside chain sheet certainly, making its reinforcement part is that at least one vertical bar shape protuberance is located at this chain medium film section waist place, and the reinforcement part of another kind of chain sheet is for around the ring protuberance that forms in this chain sheet periphery etc.

In the aforesaid chain, two inner chain sheet two ends of each cellular chain sheet group respectively in the same way a side one stretch out circular chain roller protuberance, chain pin-and-hole is located in the middle of this chain roller protuberance in this, makes the corresponding and synthetic chain roller of chain roller protuberance of this two inner chain sheets two-phase corresponding end.

The utility model has the advantages that: on this chain sheet, form the reinforcement part, make the intensity of this chain can satisfy the requirement of mechanical strength of little load driving power, make the thickness of chain sheet be able to the appropriateness reduction, and then, reach the purpose of saving material, weight reduction and reducing cost by the chain lightweight.

Description of drawings

Fig. 1 is the three-dimensional appearance schematic representation of a cellular chain sheet group in the utility model chain.

Fig. 2 is the perspective exploded view of a cellular chain sheet group in the utility model chain.

Fig. 3 is the plane decomposing schematic representation of the utility model chain-sheet of chain.

Fig. 4 is another embodiment's of the utility model chain medium chain sheet a floor map.

Fig. 5 is the combination generalized section of existing chain one cellular chain sheet group.

Embodiment

In order further to understand structure characteristic of the present utility model and other purposes, conjunction with figs. describes in detail as the back now:

The chain that relevant the utility model provides is designed at the driving mechanism that is applied to little load driving power, this chain is the ring bodies that is formed by several cellular chain sheet group (10) serial connections, as Fig. 1, shown in 2, it is a preferred embodiment that discloses a cellular chain sheet group in the utility model chain, as Fig. 1, shown in 2, each cellular chain sheet group (10) mainly has two inner chain sheets (11), two outer chain sheets (12) and chain pin (13), wherein: this two inner chain sheet (11) is parallel being set up in parallel, its two ends form circular interior connection end (111) respectively, and are provided with chain pin-and-hole (112) in the center; This two outer chain sheet (12) is divided into this two-phase inner chain sheet arranged side by side (11) one end both sides, and its two ends form circular outer connection end (121) respectively, and is provided with chain pin-and-hole (122) outside in the center; This chain pin (13) is arranged in this and two outer chain sheets (12) that connect and interior chain pin-and-hole (112), outer chain pin-and-hole (122) and the chain roller of two inner chain sheets (11) and gives the pin joint one.

In the aforesaid cellular chain sheet group, as shown in Figure 1, 2, make these two inner chain sheet (11) two ends respectively in the same way a side one stretch out circular chain roller protuberance (113), should be located in the middle of this chain roller protuberance (113) by interior chain pin-and-hole (112), make the corresponding and synthetic chain roller of chain roller protuberance (113) of this two inner chain sheet (11) two-phase corresponding end, or between the interior connection end (111) of this two inner chain sheet (11), establish a closed chain roller (figure does not show) free to rotate.

Compacting forms depressed part (114) (123) on the corresponding side of two inner chain sheets (11) of above-mentioned chain sheet group (10) or two outer chain sheets (12) two, please cooperate referring to shown in Figure 3, extend towards other side from chain sheet one side by depressed part (114) (123), and form standing shape reinforcement part (115) (124) in the side in addition in this, aforesaid reinforcement part (115) (124) can be at least one vertical bar shape protuberance and is located at this chain medium film section waist place, or be around the ring protuberance that forms in this chain sheet periphery, wherein preferred embodiment as shown in Figure 2, this reinforcement part (115) (124) is to be formed in this, the two parallel protuberances at waist place, outer chain sheet (11) (12) stage casing, inner chain sheet that also can be as shown in Figure 4, this reinforcement part (124) is for being surrounded on the ring protuberance of this inner chain sheet (11) periphery, same, also be formed with ring protuberance on this outer chain sheet (12) around its periphery, in aforesaid, outer chain sheet (11) (12) is gone up to remove and is formed two parallel protuberances as the reinforcement part in its waist simultaneously, or in being somebody's turn to do, outer chain sheet (11) (12) simultaneously in its periphery form ring protuberance as the reinforcement part outside, or can be in this, select a kind of chain sheet in the outer chain sheet (11) (12), make its waist form two parallel protuberances as the reinforcement part, another chain sheet forms the ring protuberance as (figure do not show) such as reinforcement parts in its periphery.

Chain of the present utility model is mainly in this, reinforcement part (115) (124) is set on the outer chain sheet (11) (12), in order to strengthen in this, the mechanical strength of outer chain sheet (11) (12), whereby, make this chain under the condition of the requirement of mechanical strength that meets little load driving power, in being somebody's turn to do, the intensity of outer chain sheet (11) (12) improves, make this chain sheet (11) (12) material that further used thickness is thin make shaping, as shown in Figure 3, in the reduction, outer chain sheet (11) (12) thickness, and then the material of whole chain is saved more, overall weight alleviates and reduces cost.

In sum, the utility model is with the design of this chain plate shape structure, in little load driving power and meet under the conditions such as desired mechanical strength, utilize and form depressed part and protuberance design on inner chain sheet or the outer chain sheet, make it can suitably reduce chain sheet thickness, reach the purpose that reduces cost, improve the market competitiveness of chain, and then a practical chain design with industrial utilization is provided.

Claims

1. chain, be to form by several cellular chain sheet group serial connections, each cellular chain sheet group has two inner chain sheets that are shape arranged side by side, is connected to two outer chain sheets in this outside, two inner chain sheets end, and chain pin, this chain pin is arranged in the chain pin-and-hole of this inside and outside chain sheet end that is in juxtaposition, it is characterized in that: this inner chain sheet, outer chain sheet are provided with depressed part, to form the reinforcement part.

2. chain according to claim 1 is characterized in that: the reinforcement part of this inside and outside chain sheet is that at least one vertical bar shape protuberance is located at this chain medium film section waist place.

3. chain according to claim 2 is characterized in that: this reinforcement part is two vertical bar shape protuberances, is set in parallel in this inside and outside chain medium film section waist place.

4. chain according to claim 1 is characterized in that: the reinforcement part of this inside and outside chain sheet is around the ring protuberance that forms in this chain sheet periphery.

5. chain according to claim 1, it is characterized in that: the wherein a kind of chain sheet in this inside and outside chain sheet, its reinforcement part is that at least one vertical bar shape protuberance is located at this chain medium film section waist place, and the reinforcement part of another kind of chain sheet is around the ring protuberance that forms in this chain sheet periphery.

6. chain according to claim 5 is characterized in that: this is provided with the chain sheet of vertical bar shape protuberance reinforcement part, and its reinforcement part is two vertical bar shape protuberances, is set in parallel in this chain medium film section waist place.

7. according to each described chain of claim 1 to 5, it is characterized in that: two inner chain sheet two ends of this each cellular chain sheet group respectively in the same way a side one stretch out circular chain roller protuberance, should be located in the middle of this chain roller protuberance by interior chain pin-and-hole the corresponding and synthetic chain roller of the chain roller protuberance of this two inner chain sheets two-phase corresponding end.