TWI392564B - Chainer - Google Patents

Description

Chainer

The invention is a technical field capable of unlinking or chaining a bicycle chain, in particular for structural stability, operational stability and convenience design.

Referring to Figures 1, 2 and 3, the bicycle chain (10) is composed of a plurality of chain links, each of which is composed of two symmetrical outer plates (11A) (11B) and two symmetrical shapes. a plate (12A) (12B), a bushing (13) and a plug (14), the two inner plates (12A) (12B) are butted to the inner side of the two outer plates (11A) (11B), and The bushing (13) is held between the two inner plates, and the inserts (14) are pivoted together to the outer plate (11A) (11B), the inner plate (12A) (12B) and the bushing (13). Specifically, as shown in Figures 1 and 3, the width (W1) (W2) of the chain (10) defined by the two outer panels (11A) (11B) is not constant. In general, Figure 1 The smaller width (W1) shown is applied to the bicycle transmission (eight-stage transmission), and the larger width (W2) shown in Figure 3 is applied to the general transmission of the bicycle (eight segments or less). transmission).

When changing the bicycle chain gear or installing the chain, the chain link of the chain (10) must be re-chained and chained so that the total length of the chain (10) meets the actual needs. (20) The chainer (20) includes: a screw seat (21) having a through hole (211) for providing a screw (25) combination, the screw (25) having a top portion (251) and a trigger portion (252); a fork (22), which is opposite to the screw seat (21), and a socket (23) for inserting the chain (10) is formed between the screw seat (21) and the fork seat (22). The fork seat (22) has a retreating portion (221) matching the screw hole (211); and two brackets (24) which are vertically spaced apart in the pocket (23). The top edge of the seat (24) is formed with a concave arc groove (241) corresponding to the support bushing (13).

As mentioned above, since the width (W1) (W2) of the chain (10) is not uniform, the bracket (24) near the fork (22) is designed for a small width when the chain is unchained or chained. (W1) The chain (10) is used. As for the bracket (24) close to the screw seat (21), it is used for the larger width (W2) chain (10), and the concave groove of the bracket (24) ( 241) can be supported on the lower half of the outer circumference of the bushing (13), and then through the rotating portion (252) of the rotating screw (25), so that the top cymbal portion (251) can drive the spigot (14) into the chain or into the chain. (10) According to this, the required chain breaking or chain loading operation is completed.

However, when the chain splicer (20) is actually unchained or chained, it has the following disadvantages:

1. When the chain is being unchained or chained, the bracket (24) can be completely flattened on the inner side of the corresponding inner plate (12A) (12B), but is received by the bushing (1) The influence of 3) makes the exposed area of the left half of the inner plate (12A) (12B) small, so that the left half of the bracket (24) can only abut a part of the corresponding inner plate (12A) (12B). The inside, as such, the stress on the left and right of the bracket (24) is asymmetrical, and the root of the bracket (24) and the bracket (24) contact the inner panel (12A) (12B). The force receiving area is not large, and the stress concentration is easy. Under the stress instability and the easy interaction between the poles, the bracket (24) is extremely easy to break, and the utility model cannot be durable.

2. When the chain is unchained or chained, the chain (10) is only positioned by the bracket (24), and its positioning is not good. More or less, there will be a tendency to pull out the concave arc groove (241) upwards. As a result, it is difficult for us to smoothly make the top end of the screw (25) (251) accurately punched or into the tip (14), and it is necessary to repeat the adjustment. In this regard, it is difficult to say that it is satisfactory.

3. Since the chain (10) width (W1) (W2) has two specifications, when the chain is unchained or chained, the chain (10) must be controlled to be positioned in a suitable position (24) for the average person. It is difficult to identify the difficulties.

The reason is that the inventor and the multi-party experimental design finally succeeded in developing the present invention which completely solves the problems in the prior patent application.

The main content of the present invention is to provide an electric chain drive comprising: a screw seat having a threaded hole for providing a screw combination; and a fork seat remotely opposed to the screw seat Forming a pocket for the chain to be placed with the fork seat, the fork seat has a hole corresponding to the screw hole And a limiting block, wherein the limiting block is fixed above the receiving slot and adjacent to the position of the fork, so that a limiting area is formed between the limiting block, the receiving slot and the fork seat, and the limit is A gap is formed between the block and the screw seat for inserting the chain into the groove, so that the chain entering the groove can be displaced into the position of the limit area, so as to facilitate the screw to perform the following operations in the chain or chain operation; Two technical features:

1. When the chain is unchained or chained, the fork seat abuts against the outer side of the corresponding outer plate, instead of the way the bracket is used to abut the inner side of the inner plate, so that it is not affected by the bushing of the chain. Therefore, the contact area between the fork seat and the outer plate is much larger than that of the conventional one, and the force situation is closer to symmetry and stability; in addition, the force area of the root of the fork seat is also much larger than the root of the bracket. Therefore, the stress can be more effectively dispersed; therefore, the operation mode in which the fork seat abuts on the outer side of the outer panel is practical and has the practicality of being durable.

2. When the chain is unchained or chained, the invention is characterized in that the limiting block is integrated on the top of the chain, the bottom of the groove is limited to the bottom of the chain, and the fork supports the outer plate of the chain, and the positioning of the three directions is true. It is better to use the two directionality, and there is no problem of the upward detachment of the conventional one. Therefore, the screw can be punched or driven at one time by the screw, and the practicality of the satisfactory operation is correct.

3. The present invention can completely disregard the difference in the width specification of the chain when the chain is provided, and the difference can be installed to different positions. Therefore, the present invention can improve the inconvenience of being used for identification.

In order to enable the reviewing committee to further understand the structure, features and other objects of the present invention, the drawings of the preferred embodiments are described in detail below. Referring to Figures 4 to 8, the present invention includes: a tool a frame (30) having a first frame plate (31A) and a second frame plate (31B) that are symmetrical, and the first and second frame plates (31A) (31B) are joined by a partition plate (32). In one piece, the first and second frame plates (31A) (31B) have opposite first ends (33) and second ends (34), and the first and second frame plates (31A) (31B) are first. The end (33) has a first bolt hole (35), and the second frame plate (31B) has a lock hole (311) disposed at a position corresponding to the first bolt hole (35), and the second frame plate ( 31B) further extending a limiting block (36) on a side facing the first frame plate (31A), the limiting block (36) is located above the first bolt hole (35), and the bottom surface thereof forms a pressing surface ( 361), the pressing surface (361) is shaped to match the top of the outer plate (11A) (11B) of the chain (10), and the limiting block (36) is further provided with a connecting second frame plate (31B) on the top surface. a reinforcing rib (362); as for the first and second frame plates (31A) (31B), the second end (34) penetrates each other The second bolt hole (37A) and the third bolt hole (37B) are arranged such that the second bolt hole (37A) and the third bolt hole (37B) are arranged side by side, and the partition plate (32) is located at the second position. Between the bolt hole (37A) and the third bolt hole (37B), the second bolt hole (37A) is mounted with a main bolt member (38A), and the third bolt hole (37B) is mounted with a sub-bolt member (38B). The main and auxiliary bolt members (38A) (38B) each have a cap that can abut against the outer side of the first frame plate (31A) (3) 81), the other end is assembled to the second frame plate (31B) by the locking of the screw (382); a body (40) is straddle and fixed to the first bolt hole (35), the body (40) One end edge has a screw seat (41) that can be inserted into the first frame plate (31A), and the screw seat (41) is further provided with a screw hole disposed in the same axial direction as the first bolt hole (35) ( 411), the screw hole (411) is a combination of a screw (50) having a smaller diameter top portion (51) and a hexagonal column-shaped pulling portion (52); (40) The other end edge further has a fork seat (42) that can be inserted into the second frame plate (31B), and the fork seat (42) has a retreating portion (421) matching the screw hole (411), and A screw hole (422) opposite to the lock hole (311) is provided to provide a bolt (423) which can be assembled to the screw hole (422) after passing through the lock hole (311), and the fork seat (42) is fixed The second frame plate (31B); the fork seat (42) is opposite to the screw seat (41), and a chain (10) is formed between the screw seat (41) and the fork seat (42). The receiving slot (43) is located between the first and second frame plates (31A) (31B), and the limiting block (36) is correspondingly fixed to the receiving slot ( 43) above and adjacent to the fork (42) a limiting region is formed between the limiting block (36), the receiving groove (43) and the fork seat (42), and the free end of the limiting block (36) is formed between the free end and the screw seat (41). A chain (10) can be inserted into the notch of the groove (43), the notch must be larger than the width (W1) (W2) of the chain (10), so that the chain (10) of different width (W1) (W2) specifications can Entering the pocket through the gap (43) In the range, the pocket (43) adopts a concave arc arrangement corresponding to the bottom of the two outer plates (12A) (12B) of the chain (10), so that the chain (10) entering the receiving groove (43) can be along the receiving groove. (43) and shifting to the positioning in the limit area to facilitate the screw (50) to perform the chaining or chaining operation; an open-end wrench (60) having an assembly hole at one end for the insertion of the pulling portion (52) (61) And the other end is provided with a mouth (62) capable of pulling a hexagon bolt, the open end wrench (60) is attached to the outer side of the first frame plate (31A); a first tool unit (70) It consists of a variety of different sizes or types of hand tools (711) (712) (713) (714) (715), which are arranged at one end of the hand tools (711) (712) (713) (714) (715). A pivot hole (710) for pivoting the main bolt (38A) for positioning the hand tools (711) (712) (713) (714) (715) on the first and second frame plates ( 31A) (31B), the first tool unit (70) is further installed between the two adjacent hand tools (711) (712) (713) (714) (715), respectively, for the main bolt (38A) Pivot pad (72) so that we can move or use hand tools (711) (712) (713) (714) (715) more smoothly and easily; and a second tool unit (80) It consists of a number of different sizes or types of hand tools (811) (812) (813) (814) (815) (816), such hand tools (811) (812) (813) (814) (815 (816) one end edge is provided for the auxiliary bolt (38B) to pivot a pivot hole (810) for grouping the hand tools (811) (812) (813) (814) (815) (816) between the first and second frame plates (31A) (31B) The second tool unit (80) is further disposed between the two adjacent hand tools (811) (812) (813) (814) (815) (816), respectively, for the sub-bolt (38B) to be pivoted a spacer (82); that is, the second tool unit (80) and the first tool unit (70) are pivotally arranged side by side at the second end (34) of the tool holder (30), and the partition board is (32) just between the first and second tool units (70) (80), so that the partition plate (32) can separate the hand tools of the first and second tool units (70) (80) without Poor use cases where the hand tools are crossed.

9 and 10 are second embodiments of the present invention, further defining that the first and second frame plates (31A) (31B) further have a fourth bolt hole between the first and second ends (33) (34). (39), the fourth bolt hole (39) is capable of being placed between the first and second frame plates (31A) (31B) for escaping an air bottle holder (90), the air bottle holder (90) The utility model is capable of pivoting a gas cylinder, so that the invention has the function of pumping the tire of the bicycle.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

Conventional part:

(10) ‧ ‧ chain

(11A) (11B) ‧ ‧ outer board

(12A) (12B) ‧ ‧ inner board

(13)‧‧‧ bushing

(14)‧‧‧ 插插

(W1) (W2) ‧ ‧ width

(20)‧‧‧Chaper

(21)‧‧‧ screw seat

(211)‧‧‧ screw holes

(22)‧‧‧

(221) ‧ ‧ 退

(23) ‧‧‧ 容容

(24) ‧‧‧ bracket

(241)‧‧‧ concave arc slot

(25)‧‧‧ screw

(251) ‧‧‧Top Department

(252) ‧‧‧Trading Department

Part of the invention:

(30)‧‧‧Tool holder

(31A) ‧‧‧ first frame board

(31B)‧‧‧Second frame board

(311)‧‧‧Keyhole

(32)‧‧‧ partition board

(33) ‧‧‧ first end

(34) ‧‧‧ second end

(35) ‧‧‧ first bolt hole

(36) ‧‧‧ Limit Blocks

(361) ‧ ‧ pressed surface

(362) ‧ ‧ reinforced ribs

(37A)‧‧‧Second pinhole

(37B) ‧‧‧ third pinhole

(38A)‧‧‧Main bolts

(38B)‧‧‧Auxiliary shaft

(381)‧‧‧ Hats

(382)‧‧‧ screws

(39) ‧‧‧ third pinhole

(40) ‧‧‧ Ontology

(41)‧‧‧ screw seat

(411)‧‧‧ screw holes

(42)‧‧‧

(421) ‧‧‧Retraction

(422)‧‧‧ Screw holes

(423)‧‧‧ bolts

(43) ‧‧‧ 容容

(50)‧‧‧ screw

(51) ‧‧‧Top Department

(52) ‧‧‧Trading Department

(60)‧‧‧Opening wrench

(61)‧‧‧Assembled holes

(62) ‧‧‧颚口

(70)‧‧‧First tool unit

(711)(712)(713)(714)(715)‧‧‧Hand tools

(710) ‧‧‧Pivot

(72) ‧‧‧shims

(80)‧‧‧Second tool unit

(811) (812) (813) (814) (815) (816) ‧ ‧ hands tool

(810) ‧‧‧Pivot

(82) ‧‧‧shims

(90)‧‧‧Inflatable bottle holder

Figure 1 is a schematic diagram of a conventional chain cutter for chaining the first specification chain.

Figure 2 is a schematic cross-sectional view of Figure 1.

Figure 3 is a schematic diagram of a conventional chain cutter for chaining a second specification chain.

Figure 4 is an exploded schematic view of the present invention.

Figure 5 is a schematic view of the combined appearance of the present invention.

Figure 6 is a schematic view of the operation of the present invention.

Figure 7 is a schematic cross-sectional view of Figure 6.

Figure 8 is another cross-sectional view of Figure 6.

9 and 10 are perspective views of a second embodiment of the present invention.

(10) ‧ ‧ chain

(11A) (11B) ‧ ‧ outer board

(12A) (12B) ‧ ‧ inner board

(13)‧‧‧ bushing

(14)‧‧‧ 插插

(30)‧‧‧Tool holder

(31A) ‧‧‧ first frame board

(31B)‧‧‧Second frame board

(33) ‧‧‧ first end

(34) ‧‧‧ second end

(36) ‧‧‧ Limit Blocks

(361) ‧ ‧ pressed surface

(362) ‧ ‧ reinforced ribs

(38A)‧‧‧Main bolts

(40) ‧‧‧ Ontology

(41)‧‧‧ screw seat

(423)‧‧‧ bolts

(43) ‧‧‧ 容容

(50)‧‧‧ screw

(51) ‧‧‧Top Department

(52) ‧‧‧Trading Department

(60)‧‧‧Opening wrench

(61)‧‧‧Assembled holes

(62) ‧‧‧颚口

(70)‧‧‧First tool unit

Claims (7)

An electric chain driver mainly comprises: a screw seat having a threaded hole for providing a screw combination; a fork seat remotely opposed to the screw seat, between the screw seat and the fork seat Forming a pocket for the chain to be inserted, the fork seat has a retreating portion matching the screw hole; and a limiting block fixed to the position above the pocket and adjacent to the fork seat, so that A limiting area is formed between the limiting block, the receiving slot and the fork seat, and a gap between the free end of the limiting block and the screw seat is formed for the chain to be inserted into the groove, so that the chain entering the receiving groove can be changed Positioning in the limit area to facilitate the screwing or chaining operation of the screw. According to the chain device of claim 1, the shape of the pressing surface is matched with the top of the outer plate of the chain, and the shape of the groove matches the bottom of the outer plate of the chain. According to the chain device of claim 1 or 2, the chain driver is composed of a body and a tool holder, the system is provided with a screw seat and a fork seat, and the tool holder is provided with a fork seat. It is fixed and the limit block is fixed to the tool holder. According to the chain device of claim 3, the tool holder has a first frame plate and a second frame plate, and the first and second frame plates have a first bolt hole; the system is solid across the system. Positioned on the first bolt hole, the one end edge of the body has a screw seat that can be inserted into the first frame plate, and the screw hole of the screw seat is A bolt hole is disposed in the same axial direction, and the other end edge of the body further has a fork seat that can be inserted into the second frame plate, and the pocket is located between the first and second frame plates, and the limit block is fixed. The limiting block is located above the first bolt hole on the side of the second frame plate facing the first frame plate. According to the fourth aspect of the invention, the first and second frame plates are integrally connected by a partition plate, and the first and second frame plates have opposite first ends and second ends. The first and second frame plates have a first bolt hole through the first end, and the first and second frame plates have a second bolt hole and a third bolt hole parallel to each other at the second end, so that the second frame plate The bolt hole and the third bolt hole are arranged side by side, and the partition plate is located between the second bolt hole and the third bolt hole, the second bolt hole is installed with the main bolt member, and the third bolt hole is installed with the auxiliary bolt The first bolt unit is pivotally connected to the first tool unit, the second bolt member is pivotally connected to the second tool unit, and the partition plate can be configured to shift the first and second tool units. According to the fourth aspect of the patent application, the screw has a smaller diameter top portion and a hexagonal column-shaped pulling portion, and the opening portion is provided with an open-end wrench, and the open-end wrench has a switch at one end. The assembly hole is inserted into the other end, and the other end is provided with a mouthpiece, and the open end wrench is attached to the outside of the first frame plate. According to the fourth aspect of the invention, the first and second frame plates further have a fourth bolt hole between the first and second ends, wherein the fourth bolt hole is for a gas bottle cross. The span is fixed between the first and second frame plates.