TWI765700B - Torque tool with color recognition function (1) - Google Patents

Abstract

A torque tool comprising: a plurality of head members, each head member including an identification color; a body member connected to a selected one of the head members, a torque of the body member being transmitted to the head member, the torque capable of adjusting a set of contrasting The critical point of color recognition; a color code table is arranged on the main body member, and the color code table includes a set of color codes and a plurality of numerical symbols corresponding to the identification color of the head member, and the numerical symbols are in the color code, indicating the color The code corresponds to the critical point of torque; an indicator is formed on the main body member; and, an indicator ring is provided on the main body member to be movable in a circumferential direction, the indicator ring has a set of color areas, and one of the color areas is aligned to indicate The display shows the critical point of the torque of the main body, the identification color is the same as or similar to the color code and the color area, and the critical point of the torque of the main body is applicable to the head. Thus, in the same or similar color pairing relationship, the body member provides a critical point for torque of the head member, preventing the head member from destroying the structure of a screw connection.

Description

Torque tool with color recognition function (1)

The present invention relates to the field of hand tools, in particular to a torque tool, which can identify a torque critical point applicable to a screw connection through a matching relationship of the same (or approximate) color.

Known wrenches such as open-end wrenches, adjustable wrenches, torx wrenches, hexagon wrenches and their associated parts (eg sockets), etc. are known. Commonly used marking methods include: at least one identifying text or symbol is engraved on the surface of the wrench, or a large-area identification mark is imprinted on the surface of the wrench to provide permanent marking.

The aforementioned methods have been used in the field of tools for many years, and certain problems remain. For example, under normal circumstances, all or part of the mark is covered by grease, and a user stops working and wipes off the grease to judge and determine whether the wrench is suitable or not. Alternatively, some wrenches have no markings on the back and must be turned to the front, or even from a horizontal position to an upright position, to be able to read the wrench markings.

In order to reduce or eliminate the problems existing in the aforementioned methods, US Patent No. 4,982,627 provides a tool identification method, which uses a color code table to formulate the association between ten colors and the Arabic numerals 0~9. Wherein, at least one groove is formed on the surface of the tool, and a color ring is formed in the groove with the coloring material, and the size of the tool is defined as inch or metric unit by the width of the color ring.

But color code tables require long-term memory. Infrequent use, forgetting the correlation between color and number will only increase the search time of the tool and delay the efficiency of assembly or maintenance.

Second, a single set of color codes represents the size specification of a single tool. If you want to rotate other bolts, you need to carry a set of tools of different sizes with you. The set of tools is bulky and has disadvantages such as unfavorable handling and easy selection of tools of the wrong size.

Also, from personal experience, use a tool to turn the screw. Locking too tightly may damage the screw connection structure. If the lock is not tight, the screw joints are easily loosened due to vibration.

Chinese utility model patent case No. 2118617 provides an adjustable wrench, which is tied to a handle with a fixed jaw and is equipped with a movable jaw. One set of scales on the movable jaw is parallel to another set of scales on the handle to measure the size of the screw joint like a vernier scale. .

Although, a conversion table for the handle serves as the basis for the interchange of metric and imperial two units. However, the exchange process requires mental arithmetic or computer calculation, and the calculation error greatly affects the measurement result, which is very troublesome.

US Patent No. 7,836,781 provides a torque setting device, which is tied to the end of a tool with adjustable torque and is equipped with a plurality of tooth slots and a rotary knob. value. After the rotary knob is pulled out, the clamping relationship between the teeth and the tooth slots is released. The rotary knob is forced to rotate by an angle and retreat to the tool, and the teeth together with the other teeth are locked and the locking relationship is restored, so as to achieve the effect of setting the critical point of torque.

Likewise, the torque setting device does not teach a user what the torque threshold is for the screw connection.

Therefore, how to obtain a suitable torque for the screw joint has become an urgent problem to be solved in the present invention.

In view of this, the present invention provides a torque tool, the purpose of which is to identify the applicable torque of the torque tool by matching the same color without reciting or calculating, and effectively solve the disadvantages of the prior art.

In order to achieve the above objects, the torque tool of the present invention comprises: a plurality of head members, each head member including an identification color; a main body member connected to a selected one of the head members, and a torque of the main body member is transmitted to the head The torque can adjust the critical point of a set of contrasting identification colors; a color code table is arranged on the main body member, and the color code table includes a set of color codes corresponding to the identification colors of the head member and a plurality of numerical symbols, the number The symbol is in the color code, indicating that the color code corresponds to the critical point of torque; an indicator is formed on the main body member; and, an indicator ring is provided on the main body member to move in the circumferential direction, and the indicator ring has a set of color zones , an alignment indicator of the group of color areas displays the critical point of torque of the main body member, the identification color is the same or similar to the color code and the color area, and the critical point of torque of the main body member is applicable to the head member.

In this way, the torque tool of the present invention does not need to recite or calculate, and with the same or similar color matching relationship, the main body member provides a torque critical point suitable for the head member, so as to avoid the head member from damaging the structure of a screw joint, effectively solving the problems of the prior art. disadvantages.

In order to make the objects, structures, features and advantages of the present invention easy to understand, one or more preferred embodiments are presented and described in detail as follows in conjunction with the accompanying drawings.

10: Wrench

10a: Torque screwdriver

11, 11a, 11b, 11c, 11d: Head member

12, 12a, 12b, 12c: Ontology

13, 13a: Fixed jaw

14, 14b, 14c: Drive Surface

14a: Movable jaw

15, 15a: Distance

15b: Opening

16: Uplift block

16a: Straight rod

17: convex part

17a, 42: Teeth

18: Elastic

18a: Screw knob

19, 94: Beads

19a: Operation hole

20, 20a, 20b: The first identification color

21, 21a, 21b: The second identification color

22, 22a: The third color of identification

23, 23a: The fourth color of identification

24, 24a: first identification symbol

25, 25a: Second identification symbol

26, 26a: Third identification symbol

27, 27a: Fourth identification symbol

28a: Instructions

29a: open slot

30, 30a: main components

31: Connector

32: Installation Department

33, 57: hole

34: Button

35: Rod

36: Click the Wheel

37: Shaft

38: Tube

39: Pin

40: Adjustment mechanism

41: Grip

41a: Subject

43: Screw

431: Straight Section

44: Follower

441: Threaded segment

442: Straight groove

443: Positioning Tube

45: Compression spring

46: Press contact block

47: Bearings

48: Coupling

49: Controller

49a: Rotary knob

50: Indicating unit

51: Kit

52: Ditch

53: seat body

54: tip

541, 542: Arrow Department

55: Torque unit

56: accommodating department

58: Fasteners

59: Transparent cover

60: color code table

61: The first color code

61a, 62a, 63a, 64a, 65a: Numerical symbols

62: Second color code

63: The third color code

64: Fourth color code

65: Fifth color code

70, 70a: Transparent cover

71: The first opening

72: Second Opening

73: Recess

74: Ribs

80, 80a: Indicator ring

81: Gear

82: The first color area

83: Second color area

84: The third color area

85: Fourth color zone

86: scale

87: Groove

88: Fifth color zone

90: screwdriver head

91: Sleeve

92: binding hole

93: Binding column

Fig. 1 shows the specific structure of the first embodiment of the torque tool of the present invention.

Figures 2 and 3 show the partial disassembly and assembly state of the zero (component) components of the first embodiment.

Figures 4 to 7 show the continuous operation of the pointing unit.

Figures 8 and 9 depict the relationship in which the head member is coupled to the main body member in the first embodiment.

Figures 10 to 12 illustrate the partial structures of the second, third, and fourth embodiments of the torque tool.

Fig. 13 shows the construction of a part of the fifth embodiment of the torque tool.

Fig. 14 depicts a partial configuration of the sixth and seventh embodiments of the torque tool.

Figure 15 shows an eighth embodiment of the torque tool.

Figure 16 shows the specific structure of the circled part in Figure 15.

Figure 17 shows a ninth embodiment of the torque tool.

Figure 18 shows the specific structure of the circled part in Figure 17.

Figure 19 shows the disassembled components of the tenth embodiment of the torque tool.

Fig. 20 shows the combined state of the tenth embodiment.

As shown in FIG. 1 , in the first embodiment of the torque tool of the present invention, a head member 11 is combined with a main body member 30 to form a detachable wrench 10 .

In the figure, the main body member 30 has a tube 38 which secures a shaft 37 which passes through a rod 35 inside the tube 38 . A rattle 36 pivots rod 35 deep into one end of tube 38 . A joint 31 is integrally designed with the other end of the rod 35 , the joint 31 is outside the pipe 38 , and a free end of the joint 31 forms a mounting portion 32 like an open slot. Two holes 33 are provided on the top surface and the bottom surface of the joint 31 . The two buttons 34 are assembled in the corresponding holes 33 in a free fall manner, and each button 34 does not leave the connector 31 and does not enter the mounting portion 32 .

The main body member 30 also has an adjustment mechanism 40 , a compression spring 45 of the adjustment mechanism 40 is in the tube 38 , and one end of the compression spring 45 presses against the ratchet wheel 36 of the rod 35 through a pressure contact block 46 .

Then see Figures 2 and 3, the adjustment mechanism 40 includes, but is not limited to: a handle 41 , a screw 43 and a follower 44 . The handle 41 is hollow and engages a straight section 431 of the screw 43 through a link 48 , the straight section 431 passing through a bearing 47 to maintain a threaded relationship with a controller 49 . The bearing 47 is inserted into an opening (not numbered) of the tube 38 to support the axial direction of the straight section 431 (or the screw 43 ) to overlap the axial direction of the tube 38 , so that the handle 41 is sleeved outside the tube 38 The part can cooperate with the screw 43 inside the tube 38 to rotate in the same direction. The rotation angle of the handle 41 around the tube 38 is preset, which belongs to the design category of the controller 49 and is not the core of the technology of the present application. For those who are interested, please refer to US Patent No. 7,836,781, so it will not be repeated here.

In this embodiment, the follower 44 is a pipe body, a threaded section 441 is formed in the pipe body, and a straight groove 442 is inserted into the surface of the pipe body. When the follower 44 is combined with the screw 43 with the thread section 441 , the follower 44 touches the other end of the compression spring 45 . A pin 39 passes through the wall of the tube 38 and enters the straight slot 442, limiting the linear reciprocating motion of the follower 44 within the tube 38, and determining the end point of the travel of the follower 44. In addition, a locating tube 443 is held stationary over the tube 38, the locating tube 443 preventing the pin 39 from exiting the tube 38. At the same time, the handle 41 shields the positioning tube 443 .

The main body member 30 also has an indicator unit 50 , which includes, but is not limited to, a kit 51 , a transparent cover 59 , a color code table 60 , a transparent cover 70 and an indicator ring 80 .

Wherein, the sleeve 51 is also a tube body, and the tube body protrudes a seat body 53, the seat body 53 is provided with a accommodating part 56, and two holes 57 are formed in the accommodating part 56 along the thickness direction to penetrate into the sleeve 51. When the tube 38 passes through the set 51 , two fasteners 58 are locked into the tube 38 through the holes 57 , so that the set 51 is fixed beside the positioning tube 443 . The seat body 53 also has a tip 54, and a torque unit 55 is provided between the tip 54 and the accommodating part 56. The torque unit 55 is engraved on the surface of the seat body 53, and the torque value is represented by Nm in the international system of units.

In this embodiment, the color code table 60 is a single printed matter, and the printed matter is placed in the accommodating portion 56 and pressed by the transparent cover 59 embedded in the base body 53 . The color code table 60 prints a set of color codes and four numerical symbols, and each numerical symbol is in the center of the color code. For example, the numeral symbol 61a represents that the critical point of the torque of the first color code 61 is 18Nm; the numeral symbol 62a represents that the critical point of the torque of the second color code 62 is 42Nm; the numeral symbol 63a represents that the critical point of the torque of the third color code 63 is 55Nm; Numeral symbol 64a represents that the torque threshold of the fourth color code 64 is 65Nm.

In some embodiments, there is no print. The color code table 60 is provided on the bottom surface of the transparent cover 59 through techniques such as painting, arrangement or printing. Looking at the transparent cover 59, the group of color codes and numerical symbols 65 can also be seen, but the fasteners 58 under the color code table 60 cannot be seen.

The sleeve 51 passes through the indicator ring 80 , and the indicator ring 80 is between the tip 54 and the positioning tube 443 , and can rotate around the sleeve 51 , but cannot move along the axis of the sleeve 51 . The outer surface of the indicator ring 80 forms a gear 81 which engages a continuous circle of teeth 42 inside the handle 41 . A groove 87 is formed on the outer surface of the indicator ring 80 , and the groove 87 is provided with a set of color areas and a set of scales 86 inside.

In addition, the transparent cover 70 is outside the sleeve 51 , and a ring of protruding ribs 74 on the inner side of the transparent cover 70 catches a groove 52 of the sleeve 51 , preventing the transparent cover 70 from leaving the sleeve 51 along the axis of the tube 38 . A second opening 72 of the transparent cover 70 faces the handle 41 , and a first opening 71 of the transparent cover 70 is provided with a concave portion 73 , and the concave portion 73 is a V-shaped notch reduced from the first opening 71 to the second opening 72 . , which fits with the tip 54 of the seat body 53 to prevent the transparent cover 70 from rotating around the sleeve 51 . Therefore, the transparent cover 70 covers the indicator ring 80 in a fixed manner.

It is not difficult to find from Figures 4 to 7 that the number of color areas in this group is four, namely: a first color area 82 , a second color area 83 , a third color area 84 and a fourth color area 85 . The set of scales 86 is between the first color area 82 and the fourth color area 85 .

In Figures 1 to 4, the handle 41 is forced to rotate relative to the tube 38, driving the screw 43 to drive the follower 44 to retreat in the direction of the bearing 47, thereby releasing the force of the compression spring 45. When the gear 81 and the teeth 42 are kept in meshing or engaging relationship, the indicator ring 80 rotates in the same direction around the sleeve 51 , and the grip 41 adjusts the degree of torsion of the main body member 30 in real time.

The tip 54 of the seat body 53 extends toward the indicator ring 80 , the fourth color area 85 is aligned with the tip 54 , and shows that the critical point of the torque of the main body member 30 is 65Nm. The color (or color system) of the fourth color area 85 is the same (or similar) to that of the fourth color code 64 , indicating that 65Nm conforms to the set value of the torque critical point of the central numeral 64 a of the fourth color code 64 .

Since the adjustment mechanism 40 is a mechanical structure, there may be an error of ±5Nm, so the torque of the main body member 30 reaches the range of 65±5Nm.

The torque of the body member 30 comes from the force generated by the deformation of the compression spring 45 which counteracts a reaction force of the joint 31 . If the reaction force is small, the main body member 30 continuously applies torque to the joint 31 . Once the reaction force becomes larger and exceeds the torque critical point set by the adjusting mechanism 40 , the ratchet wheel 36 and the pressing contact block 46 will interrupt the force of the compression spring 45 and no longer transmit torque. At this moment, the maximum torque of the main body member 30 is 65±5Nm.

As shown in Figures 2, 3, and 5, the handle 41 drives the screw 43 to move the follower 44 backward, and changes the force exerted by the compression spring 45 on the joint. Under the condition that the gear 81 engages or engages with the teeth 42, the indicator ring 80 rotates in the same direction around the sleeve 51, and the degree of torque adjustment of the handle 41 is instantly reflected.

When the tip 54 faces the third color area 84 , the third color area 84 and the third color code 63 belong to the same color pairing relationship. No need to recite or calculate, it is known that the torque of the main body member 30 is in the range of about 55±5Nm, which is equivalent to the torque critical point represented by the numerical symbol 63a of the third color code 63 on the color code table 60 .

In Figures 2, 3, and 6, the degree of torsion of the main body member 30 is changed in accordance with the aforementioned adjustment operation. At this moment, the tip 54 is facing the second color area 83 , referring to the numerical symbol 62 a of the second color code 62 of the same color, it can be known that the main body member 30 has a torque in the range of 42±5Nm without recitation or calculation.

As shown in FIGS. 2 , 3 and 7 , the handle 41 is rotated to drive the indicator ring 80 to rotate in the same direction, so that the first color area 82 is aligned with the tip 54 of the base 53 . Under the same color pairing of the first color code 61 , it can be known that the main body member 30 has a torque in the range of 18±5Nm without recitation or calculation, which conforms to the torque critical point of the first color code 61 indicated by the numerical symbol 61a.

Looking back at FIG. 1 , the head member 11 has a main body 12 , and the main body 12 is provided with two fixed jaws 13 , and the two fixed jaws 13 are separated by a distance 15 . Defining two fixed jaws 13 phases The facing side is the driving surface 14 . The top surface of the main body 12 forms a raised block 16, the raised block 16 extends outward with a convex portion 17, and the bottom surface of the convex portion 17 forms a bead groove (see Fig. 9), the bead groove is configured with an elastic member 18 and a bead Body 19. The elastic member 18 pushes the ball body 19 to partially protrude from the surface of the convex portion 17 , and the bead body 19 cannot easily leave the convex portion 17 . In addition, a fourth identification color 23 is painted on the top surface of the raised block 16 , and the fourth identification color 23 covers the top surface of the convex portion 17 . A fourth identification symbol 27 is imprinted on the top surface of the raised block 16 .

In Figs. 8 and 9, the protruding portion 17 is inserted into the mounting portion 32, and one of the buttons 34 is pushed out by the ball 19 to protrude from the outer surface of the connector 31. Since the two fixing jaws 13 make the head member 11 resemble the outline of an open-ended wrench, the head member 11 is combined with the main body member 30 to form the wrench 10 having the open-end wrench function.

When the button 34 is forced to withdraw into the hole 33, the button 34 pushes the ball 19 to retract into the bead groove of the convex portion 17, releases the latching relationship between the bead 19 and the hole 33, and allows the convex portion 17 to withdraw from the mounting portion 32, which is beneficial to the main body. The member 30 is replaced with another head member 11 . During the release of the latching relationship, the elastic member 18 is pressed by the ball 19 . After the protruding portion 17 leaves the mounting portion 32, the elastic member 18 pushes the ball 19 to protrude from the surface of the protruding portion 17, waiting for the next use.

When performing the locking or unscrewing operation, the two fixing jaws 13 are on both sides of the threaded member (such as the head of a nut or a screw), and the two driving surfaces 14 exert force on the corners of the threaded member. Therefore, the too large distance opposite the head of the nut or screw means that the screw connection cannot enter between the two fixing jaws 13 . If the distance across the sides is too small, it means that the two driving surfaces 14 cannot effectively contact the corners of the screw connection. In other words, the head member 11 is suitable for a single screw connection, and the size specification of the screw connection is 29mm opposite side distance, which conforms to the fourth identification symbol 27 represented by a set of Arabic numerals 29 .

According to Figures 4 and 8, the representative color of the fourth identification symbol 27 is the fourth identification color 23, the fourth identification color 23 and the fourth color code 64 belong to the same or similar color system, and the fourth color area 85 is matched torque is better. Adjust the torque of the wrench 10 until the fourth color area 85 of the indicator ring 80 is aligned with the seat body The tip 54 of 53 is sufficient. Without recitation or calculation, the body member 30 provides a torque of 65±5Nm, acting as a critical point for the head member 11, suitable for a 29mm sized screw connection.

As shown in Figures 5 and 10, the structure of the second embodiment of the torque tool of the present invention is substantially the same as that of the first embodiment, except that: first, a third identification symbol 26 is on the top surface of the raised block 16, representing the A distance of 15 corresponds to a screw connection with a distance of 26mm across. In other words, the distance 15 of the head member 11 is smaller than that of the first embodiment.

Secondly, the representative color of the third identification symbol 26 is a third identification color 22 , and the third identification color 22 is laid on the side surface of the main body 12 , including the surfaces of the two fixed jaws 13 .

No need to recite or calculate, the third identification color 22 is paired with the third color code 63 and the third color area 84 of the same color, the main body member 30 provides a torque in the range of 55±5Nm, and is suitable for the rotation of the head member 11. The opposite side distance is 26mm screw Torque critical point of the joint.

In Figures 6 and 11, the third embodiment of the torque tool of the present invention is drawn, and its structure is substantially the same as that of the second embodiment, except that: first, a second identification symbol 25 is on the top surface of the raised block 16, representing the This distance 15 corresponds to a distance across the side of the screw connection of about 22 mm. In other words, the distance 15 of the head member 11 is smaller than that of the first embodiment.

Furthermore, the representative color of the second identification symbol 25 is a second identification color 21 . The second identification color 21 is disposed around the raised block 16 and extends from the top surface of the raised block 16 to the top surface of the convex portion 17 .

According to the second identification color 21 , the second color code 62 and the second color area 83 paired with the same color, the main body member 30 provides a torque in the range of 42±5Nm, which is suitable for the torque critical point of the head member 11 rotating a 22mm screw.

In Figures 7 and 12, a fourth embodiment of the torque tool of the present invention is shown, and its structure is substantially the same as that of the third embodiment, with the difference that: first, a first identification symbol 24 is on the top surface of the raised block 16, representing the This distance 15 corresponds to a distance across the side of the screw connection of about 17 mm. In other words, the distance 15 of the head member 11 is smaller than that of the first and second embodiments.

Secondly, the representative colors of the first identification symbol 24 are two first identification colors 20 , these first identification colors 20 are respectively arranged on the side surface of the main body 12 , and the top surface of the raised block 16 extends to the top surface of the convex portion 17 . According to the first identification color 20 , the first color code 61 and the first color area 82 matched with the same color, the main body member 30 provides a torque in the range of 18±5Nm, which is suitable for the torque critical of the head member 11 with a distance of 17mm between the opposite sides. point.

Make a table according to the matching relationship of the same color, the size of the bolted parts and the critical point of torque. In the table, the dimensions of the bolted parts are expressed in mm, and the torque value is expressed in the international system of units Nm.

The head member 11 of the first embodiment to the fourth embodiment is a set, and is matched with a torque tool composed of a single main body member 30 . From the perspective of the screw joint, the screw joint is inserted into the head member 11, and the identification color of the same color is compared with the color code, and the critical value of the reference numerals 61a to 64a is used to change the torque critical point of the main body member 30 until The color area of the same color of the indicator ring 80 is aligned with the tip 54 . This way of operating the wrench 10 is very simple and suitable for ordinary users with inexperienced (or unfamiliar) experience.

On the contrary, turn the handle 41 to change the torque critical point of the main body member 30, and find the head member 11 with the same (or similar) identification color according to the numerical symbols 61a to 64a, which is suitable for highly experienced (or skilled) professional users to drive The dimensions are adapted to the rotation of the screws of the head member 11 .

Fig. 13 is a fifth embodiment of the torque tool of the present invention, and its structure is substantially the same as that of the first embodiment in that the head member 11a also has a main body 12a, and one end of the main body 12a is formed with a convex portion 17, and the convex portion 17 has Elastic bead 19 . Therefore, the protruding portion 17 is inserted into the mounting portion 32 of the connector 31, and the button 34 is pushed up by the ball body 19 to produce a latching relationship, and the assembly of the head member 11a and the main body member 30 is completed.

The difference between the fifth embodiment and the first embodiment is that a fixed jaw 13a is erected at the other end of the main body 12a, and the root of the fixed jaw 13a is an open groove 29a formed in the main body 12a. The open groove 29a is connected to the main body 12a. An operation hole 19a of 12a communicates with each other. A screw knob 18a is inserted into the operation hole 19a, which maintains a rotational connection with the main body 12a. A straight rod 16a is inserted into the open slot 29a of the main body 12a, the straight rod 16a is connected with a movable jaw 14a on one side, and a row of teeth 17a is formed on the other side, the teeth 17a engage or engage the screw knob 18a, providing the straight rod 16a in the The power required to move the opening slot 29a changes the distance 15a from the movable jaw 14a to the fixed jaw 13a.

In this way, the head member 11a has the outline of an adjustable wrench, and is combined with the main body member 30 to form the wrench 10 having the function of an adjustable wrench.

Secondly, the matching part of the same color in the above table is slightly changed in the head member 11a. To put it simply, a first identification color 20a, a second identification color 21a, a third identification color 22a, and a fourth identification color 23a are arranged on the outside of the main body 12a. The first identification color 20a is connected to a curved first identification symbol 24a. The second identification color 21a is connected to a second identification symbol 25a of a curve, the third identification color 22a is connected to a third identification symbol 26a of a straight line, and the fourth identification color 23a is connected to a fourth identification symbol 27a of a curve. An indication portion 28a on the side of the movable jaw 14a, the indication portion 28a is an arrow, and the tip of the arrow points to any identification symbol, through the matching relationship between the identification color of the same color and the color code (or color area), the main body component 30 provides the torque required for the head member 11a to turn the screw.

Figure 14 depicts the body member 30 combined with a head member 11b, forming a sixth embodiment of the torque tool of the present invention. The head member 11b is the same as the first embodiment in that the convex portion 17 It is designed integrally with the head member 11b, and the convex portion 17 is inserted into the mounting portion 32 of the joint 31, so that the head member 11b and the main body member 30 are integrated together.

The head member 11b of the sixth embodiment is different from the first embodiment in that the main body 12b is provided with an opening 15b, so that the head member 11b presents a Y-shaped body. A drive surface 14b on the inside of the body 12b, refers to the continuous teeth connected from one side of the opening 15b to the other side, so that the head member 11b has the profile of an open-ended Torx wrench. The head member 11b is combined with the main body member 30 to form a torque tool, and also has the functional structure of an open-ended ring wrench.

Secondly, the first identification color 20b on the outside of the main body 12b, according to the above-mentioned table about the matching relationship of the same colors, the main body member 30 provides a torque in the range of 18±5Nm, which is suitable for the screw connection of the head member 11b with a rotation specification of 17mm.

The same body member 30 in combination with a head member 11c constitutes the seventh embodiment of the torque tool of the present invention. The head member 11c is the same as the first embodiment in that the structure of the main body member 30 remains unchanged. The convex portion 17 is designed integrally with the head member 11c, and the convex portion 17 is inserted into the mounting portion 32 of the joint 31, so that the head member 11c and the main body member 30 are integrated.

The head member 11c of the seventh embodiment is different from the first embodiment in that the main body 12c is an O-shaped body, the inner side of which is surrounded by continuous teeth to form a driving surface 14c, so that the head member 11c has the outline of a Torx wrench. The head member 11c is combined with the main body member 30 to form a torque tool, which also has the functional structure of a Torx wrench.

In addition, the second identification color 21b is arranged on the surface of the main body 12c to the convex portion 17. According to the matching relationship of the same color in the above table, it can be known that in order for the head member 11c to rotate the screw with a size of 22mm, the main body member 30 provides 42±5Nm range of torque.

Fig. 15 is a perspective view showing an eighth embodiment of the torque tool of the present invention. Fig. 16 is a plan view showing an enlarged encircled portion of the main body member 30 of the eighth embodiment. The structure of the eighth embodiment is substantially the same as that of the first embodiment, and the wrench 10 is composed of the head member 11 combined with the main body member 30 .

The eighth embodiment of the torque tool differs from the first embodiment in that it does not have any color zones. In the circumferential direction, the set of scales 86 are imprinted on the outer surface of the indicator ring 80 .

According to the same color matching principle, the fourth color code 64 of the color code table 60 is compared with the identification color. Referring to the numerical symbol 64a of the fourth color code 64, turn the handle 41 to drive the indicator ring 80 to rotate in the same direction until the base 53 is aligned with the scale 86 with the tip 54, so that the main body member 30 is adjusted to the torque threshold of 65Nm, which is suitable for the head member 11. Rotating the screw with a size of 29mm also has the function of color recognition.

Fig. 17 is also a perspective view showing a ninth embodiment of the torque tool of the present invention. Fig. 18 is a plan view, enlarging the encircled portion of the main body member 30 of the ninth embodiment. The structure of the ninth embodiment is substantially the same as that of the first embodiment, and a wrench 10 is composed of a head member 11 combined with a main body member 30 .

The difference between the ninth embodiment and the first embodiment is that there is no complete indicating unit. The body member 30 has an arrowhead portion 541 that protrudes outside the sleeve, which retains the tip 54 and the torque unit 55 on the top surface of the arrowhead portion 541 .

The tip 54 of the arrow portion 541 points to the third color area 84 , and the third color area 84 and the identification color of the head member 11 belong to different colors or color systems. Without recitation or calculation, it is known that the (55±5Nm) torque is not suitable for the screw connection of the head member 11 rotation. At this point, the torque of the body member 30 should be adjusted as previously described.

Fig. 19 is an exploded perspective view showing a tenth embodiment of the torque tool. Fig. 20 is a plan view showing the combined state of the tenth embodiment.

The structure of the tenth embodiment is the same as that of the first embodiment in that the head member 11d is combined with the main body member 30a to form a torque tool. According to the matching principle of the same color, the fourth identification color 23 of the head member 11d is the same (or similar) to the fourth color area 85 of the indicator ring 80a, so the critical point of torque of the main member 30a is suitable for the preset value of the head member 11d.

Secondly, the fourth identification color 23 is applied to different positions of the head member 11d, which is also within the allowable range of the present invention.

The head member 11d of the tenth embodiment is different from the first embodiment in that: firstly, the head member 11d is combined with a socket 91 by a driver bit 90, and the end surface of the socket 91 is recessed into a square coupling hole 92.

Second, the main body member 30a is provided with a main body 41a for torque, one end of the main body 41a protrudes from a coupling post 93, and an elastic ball 94 is arranged on the coupling post 93. When the coupling post 93 is inserted into the coupling hole 92, the ball 94 pushes against the wall of the sleeve 91 to form the coupling hole 92, and supports the driving end of the bit 90 to rotate the screw connection, such as the groove of a flat head screw. Thus, the body member 30a combined with the body 41a constitutes a torque tool of the torque driver 10a.

Third, a rotary knob 49a is installed at the other end of the main body 41a, and the rotary knob 49a is a part of the controller 49. Between the rotary knob 49a and the main body 41a is a transparent cover 70a, which is fixed and used to cover the periphery of the indicator ring 80a.

Fourth, the arrow portion 542 is a groove that sinks into the surface of the main body 41a, and the groove has a tip 54 facing any color area of the indicator ring 80a.

Fifth, a fifth color code 65 is added to the color code table 60, and the color of the fifth color code 65 is the same as or similar to the fifth color area 88 of the indicator ring 80a. The center of the fifth color code 65 is a numerical symbol 65a representing the critical point of 80Nm torque.

Sixth, the fifth color area 88 and the third color area 84 are on both sides of the fourth color area 85, and the center of the fifth color area 88 also has a set of Arabic numerals representing the set value of 80Nm.

10: Wrench

11: Header Components

12: Ontology

13: Fixed jaw

14: Drive Surface

15: Distance

16: Uplift block

17: convex part

18: Elastic

19: Beads

23: The fourth identification color

27: Fourth identification symbol

30: Main components

31: Connector

32: Installation Department

33: Hole

34: Button

35: Rod

36: Click the Wheel

37: Shaft

38: Tube

40: Adjustment mechanism

41: Grip

45: Compression spring

46: Press contact block

50: Indicating unit

51: Kit

53: seat body

55: Torque unit

59: Transparent cover

70: Transparent cover

Claims (10)

A torque tool with color recognition function, including: a plurality of head members (11), each head member (11) including an identification color; a body member (30) connected to one of the selected head members (11), a torque of the body member (30) is transmitted to the head member (11), the torque can adjust a set of critical points of contrast identification colors; A color code table (60) is configured on the main body member (30), and the color code table (60) includes a set of color codes and a plurality of numerical symbols corresponding to the identification colors of the head member (11), and the numerical symbols are in the color code. In the code, it indicates the critical point of the torque corresponding to the color code; an indicator formed on the body member (30); and An indicator ring (80) is arranged on the main body member (30) to move in the circumferential direction, the indicator ring (80) has a set of color areas, and one of the color areas is aligned with the indicator to display the critical torque of the main body member (30). point, the identification color is the same as or similar to the color code and color area, and the critical point of the torque of the main body member (30) is applicable to the head member (11). The torque tool with color recognition function according to claim 1, wherein a seat (53) of the main body member (30) is provided with a accommodating part (56), and the accommodating part (56) is combined with a transparent cover (59) , the color code table (60) is between the transparent cover (59) and the accommodating part (56). The torque tool with color recognition function according to claim 2, wherein the color code table (60) is sandwiched between the transparent cover (59) and the accommodating part (56) of the seat body (53). The torque tool with color recognition function according to claim 2, wherein the color code table (60) is printed on the bottom surface of the transparent cover (59). The torque tool with color recognition function according to claim 1, wherein the set of color codes includes, but is not limited to: a first color code (61), a second color code (62), a third color code ( 63) with a fourth color code (64). The torque tool with color recognition function according to claim 1, wherein the number of color areas of the indicator ring (80) corresponds to the number of color codes of the color code table (60), and each color area represents the torque of the main body member (30). one of the tipping points. The torque tool with color recognition function according to claim 6, wherein the indicator ring (80) includes four color areas, and the color code table (60) includes four color codes. The torque tool with color recognition function according to claim 2, wherein the indicator is a tip (54) extending from the seat body (53) toward the indicator ring (80). The torque tool with color recognition function according to claim 8, wherein one torque unit (55) of the seat body (53) is between the receiving part (56) and the tip (54). The torque tool with color recognition function according to claim 1, wherein a transparent cover (70) covers the indicator ring (80) fixedly on the main body member (30).

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