Torque tool with color recognition function

Abstract

The present invention provides a torque tool, comprising: a plurality of head members, each head member including an identification color; a main body member connected to one of the selected head members, a torque of the main body member being transmitted to the head member, the torque being capable of adjusting a critical point of a set of reference identification colors; a color code table disposed on the main body member, the color code table including a set of color codes corresponding to the identification colors of the head members and a plurality of numerical symbols, the numerical symbols in the color codes representing the critical points of the torques corresponding to the color codes; an indicator formed on the main body member; an indicating ring provided on the main body member and capable of moving in a circumferential direction, the indicating ring having a set of color areas, an alignment of a pair of the set of color areas with the indicator indicating the critical point of the torque of the main body member, the identification color being the same as or similar to the color codes and the color areas, the critical point of the torque of the main body member being applicable to the head member, so that the main body member provides a critical point of the torque suitable for the head member, preventing the head member from damaging the structure of a screwed member.

Description

Technical Field

[0001] The present invention relates to the field of hand tools, and particularly to a torque tool that identifies a torque critical point applicable to a screw connection through a color matching relationship of the same (or similar) color. Background Art

[0002] Known wrenches include open-end wrenches, adjustable wrenches, socket wrenches, hex wrenches and their accessories (such as sockets), etc. Common marking methods include: engraving at least one identifying character or symbol on the surface of the wrench, or embossing a large-area identification mark on the surface of the wrench for the purpose of providing a permanent mark.

[0003] The foregoing methods have been used in the tool field for many years and still have certain problems. For example, under normal circumstances, all or part of the mark is obscured by grease, and a user has to stop working and wipe off the grease to determine whether the wrench is suitable or not. Or, some wrenches have no mark on the back and must be flipped to the front, or even rotated from a horizontal position to a vertical position to identify the mark of the wrench.

[0004] In order to reduce or eliminate the problems existing in the foregoing methods, U.S. Patent No. 4,982,627 provides a tool identification method that formulates the association between ten colors and Arabic numerals 0-9 by means of a color code table. Among them, at least one groove is formed on the surface of the tool, and a color ring is formed in the groove with a coloring material, and the size of the tool is defined as an imperial or metric unit by the width of the color ring.

[0005] However, the color code table needs to be memorized for a long time. If not used frequently and the association between colors and numbers is forgotten, it will only increase the search time for tools and delay the efficiency of assembly or repair.

[0006] Secondly, a single set of color codes represents the size specifications of a single tool. If other screw connections need to be rotated, a set of tools of different sizes needs to be carried around. This set of tools is bulky, has the disadvantages of being inconvenient to carry and being prone to selecting the wrong size tool.

[0007] In addition, relying on personal experience, a tool is used to rotate a screw connection. If it is tightened too much, the structure of the screw connection may be damaged. If it is not tightened enough, the screw connection is likely to become loose due to vibration.

[0008] Chinese Utility Model Patent No. CN2118617 provides an adjustable wrench, which is configured with a movable jaw on a handle having a fixed jaw. A set of scales of the movable jaw are arranged side by side with another set of scales of the handle to measure the size of the screw connection like a vernier caliper.

[0009] Although, a conversion table on the handle serves as the basis for the interchange between the metric and imperial units. However, the interchange process requires mental calculation or the calculation of an electronic computer, and calculation errors have a great impact on the measurement results, which is very troublesome.

[0010] U.S. Patent No. 7,836,781 provides a torque setting device, which is configured with multiple grooves and a rotary knob at the end of a tool with adjustable torque. A tooth of the rotary knob engages with the groove to determine the maximum torque value output by the tool. After the rotary knob is pulled out, the engagement relationship between the tooth and the groove is released. The rotary knob is rotated by a force through an angle and retracts towards the tool, causing the tooth to engage with other grooves and restoring the engagement relationship, achieving the effect of reaching the torque setting critical point.

[0011] Similarly, the torque setting device does not teach a user what the torque critical point suitable for the screw connector is.

[0012] Therefore, how to make the screw connector obtain a suitable torque becomes an urgent problem to be solved in the present invention. Summary of the Invention

[0013] In view of this, the present invention provides a torque tool, and its purpose is: without the need to memorize or calculate, to identify the applicable torque of the torque tool by color matching, effectively solving the drawbacks of the background technology.

[0014] To achieve the above object, the present invention provides a torque tool with a color identification function, which is characterized in that it includes:

[0015] A plurality of head members, each head member including an identification color;

[0016] A main body member is connected to one of the selected head members, and a torque of the main body member is transmitted to the head member, and the torque can adjust a critical point of a set of control identification colors;

[0017] 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 members and a plurality of numerical symbols. The numerical symbols in the color codes represent the critical points of the torques corresponding to the color codes;

[0018] An indicator is formed on the main body member; and

[0019] An indicating ring is arranged on the main body member and can move in the circumferential direction. The indicating ring has a set of color areas, and a pair of the color areas aligned with the indicator display the critical points of the torque of the main body member. The identification color is the same as or similar to the color code and the color area, and the critical points of the torque of the main body member are applicable to the head member.

[0020] For the torque tool with a color identification function, wherein a seat body of the main body member has a receiving portion, the receiving portion is combined with a transparent cover, and the color code table is between the transparent cover and the receiving portion.

[0021] For the torque tool with a color identification function, wherein the color code table is clamped between the transparent cover and the receiving portion of the seat body.

[0022] The torque tool with color identification function, wherein the color code table is printed on the bottom surface of the transparent cover.

[0023] The torque tool with color identification function, wherein the set of color codes includes but is not limited to: a first color code, a second color code, a third color code, and a fourth color code.

[0024] The torque tool with color identification function, wherein the number of color zones of the indicating ring corresponds to the number of color codes of the color code table, and each color zone represents one of the critical points of the torque of the main body member.

[0025] The torque tool with color identification function, wherein the indicating ring includes four color zones, and the color code table includes four color codes.

[0026] The torque tool with color identification function, wherein the indicator is a tip extending from the seat body towards the indicating ring.

[0027] The torque tool with color identification function, wherein one torque unit of the seat body is located between the accommodating portion and the tip.

[0028] The torque tool with color identification function, wherein a transparent cover shields the indicating ring immovably on the main body member.

[0029] A torque tool with color identification function, characterized by comprising:

[0030] A plurality of head members, each head member including an identification color;

[0031] A main body member is connected to one of the selected head members, and a torque of the main body member is transmitted to the head member, and the torque can adjust a set of critical points for comparing and identifying colors;

[0032] An indicator is formed on the main body member; and

[0033] An indicating ring is arranged on the main body member and can move in the circumferential direction. The indicating ring has a set of color zones, and an alignment of the indicator with the set of color zones shows the critical points of the torque of the main body member. The identification color is the same as or similar to the color zone, and the critical points of the torque of the main body member are applicable to the head member.

[0034] The torque tool with color identification function, wherein the set of color zones includes but is not limited to: a first color zone, a second color zone, a third color zone, and a fourth color zone.

[0035] The torque tool with color identification function, wherein the main body member bulges a arrowhead portion, and the indicator is a tip extending from the arrowhead portion towards the indicating ring.

[0036] The torque tool with color recognition function, wherein, the top surface of the arrow head part has a torque unit.

[0037] The torque tool with color recognition function, wherein, the main body member forms an arrow head part like a groove, and the indicator is a tip extending from the arrow head part towards the indicating ring.

[0038] The torque tool with color recognition function, wherein, a transparent cover shields the indicating ring fixedly on the main body member.

[0039] The torque tool with color recognition function, wherein, the indicating ring also has a set of numerical symbols, and the numerical symbols represent the torque critical values corresponding to the color zones.

[0040] A torque tool with color recognition function, characterized by comprising:

[0041] A tube;

[0042] A rod, pivotally connected to the tube, and one end of the rod extends into the tube and receives a torque;

[0043] A joint, connecting the other end of the rod;

[0044] A grip, rotatably arranged on the tube, and the torque is transmitted from the grip through the tube to the rod and the joint, and the grip changes one of the multiple torque critical points;

[0045] A color code table is arranged on the tube, and the color code table includes a set of color codes, and each color code corresponds to a critical point of the torque; and

[0046] An indicating ring rotates in the same direction as the grip around the tube, and a set of color zones of the indicating ring correspond to the set of color codes of the color code table in color.

[0047] The torque tool with color recognition function, wherein, a seat body is fixed relative to the tube, the seat body has a receiving part, and the receiving part is combined with a transparent cover, and the color code table is located between the transparent cover and the receiving part.

[0048] The torque tool with color recognition function, wherein, a transparent cover shields the indicating ring fixedly on the tube, and a concave part of the transparent cover fits a tip of the seat body, and the tip faces the color zone of the indicating ring.

[0049] The torque tool with color recognition function, wherein, a torque unit arranged on the seat body is between the receiving part and the tip.

[0050] The torque tool with color recognition function, wherein, the color code table is clamped between the transparent cover and the receiving part of the seat body.

[0051] The torque tool with color recognition function, wherein the color code table is printed on the bottom surface of the transparent cover.

[0052] The torque tool with color recognition function, wherein a set of scales replaces the set of color zones and is arranged on the surface of the indicating ring.

[0053] In this way, the torque tool of the present invention does not require memorization or calculation. With the same or approximate color matching relationship, the main body member provides the torque critical point suitable for the head member, avoiding the head member from damaging the structure of a screw joint, and effectively solving the drawbacks of the prior art.

[0054] To make the purpose, structure, features and advantages of the present invention easy to understand, one or more preferred embodiments are given below and will be described in detail in conjunction with the accompanying drawings. Brief Description of the Drawings

[0055] Figure 1 It is a schematic diagram showing the specific structure of the first embodiment of the torque tool of the present invention.

[0056] Figure 2 、 Figure 3 It is a schematic diagram showing the disassembly and combination state of the zero (group) components of the first embodiment.

[0057] Figures 4 - 7 It is a schematic diagram showing the continuous action of the indicating unit.

[0058] Figure 8 、 Figure 9 It is a schematic diagram depicting the relationship between the head member and the main body member of the first embodiment.

[0059] Figures 10 - 12 It is a schematic diagram showing the partial structure of the second, third and fourth embodiments of the torque tool.

[0060] Figure 13 It is a schematic diagram showing the partial structure of the fifth embodiment of the torque tool.

[0061] Figure 14 It is a schematic diagram depicting the partial structure of the sixth and seventh embodiments of the torque tool.

[0062] Figure 15 It is a schematic diagram showing the eighth embodiment of the torque tool.

[0063] Figure 16 It is to show Figure 15 a schematic diagram of the specific structure at the circled area.

[0064] Figure 17 It is a schematic diagram showing the ninth embodiment of the torque tool.

[0065] Figure 18 It is to showFigure 17 Schematic diagram of the specific structure at the circled area.

[0066] Figure 19 It is a schematic diagram showing the disassembled components of the tenth embodiment of the torque tool.

[0067] Figure 20 It is a schematic diagram showing the combined state of the tenth embodiment.

[0068] Description of reference numerals: wrench 10; screwdriver 10a; head members 11, 11a, 11b, 11c, 11d; bodies 12, 12a, 12b, 12c; fixed jaws 13, 13a; driving surfaces 14, 14b, 14c; movable jaw 14a; distances 15, 15a; opening 15b; raised block 16; straight rod 16a; convex part 17; teeth 17a, 42; elastic member 18; screw knob 18a; beads 19, 94; operation hole 19a; first identification color 20, 20a, 20b; second identification color 21, 21a, 21b; third identification color 22, 22a; fourth identification color 23, 23a; first identification symbol 24, 24a; second identification symbol 25, 25a; third identification symbol 26, 26a; fourth identification symbol 27, 27a; indicating part 28a; opening groove 29a; main body member 30, 30a; joint 31; mounting part 32; holes 33, 57; button 34; rod 35; rattle wheel 36; shaft 37; tube 38; pin 39; adjusting mechanism 40; grip 41; main body 41a; screw 43; straight section 431; follower 44; threaded section 441; straight groove 442; positioning tube 443; compression spring 45; pressing contact block 46; bearing 47; connecting member 48; controller 49; rotary knob 49a; indicating unit 50; kit 51; groove 52; seat body 53; tip 54; arrow heads 541, 542; torque unit 55; receiving part 56; fastener 58; transparent cover 59; color code table 60; first color code 61; digital symbols 61a, 62a, 63a, 64a, 65a; second color code 62; third color code 63; fourth color code 64; fifth color code 65; transparent cover 70, 70a; first opening 71; second opening 72; recess 73; convex rib 74; indicating ring 80, 80a; gear 81; first color area 82; second color area 83; third color area 84; fourth color area 85; scale 86; groove 87; fifth color area 88; screwdriver bit 90; socket 91; coupling hole 92; coupling post 93. Detailed description of the invention

[0069] As Figure 1 shown, 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 jointly form a detachable wrench 10.

[0070] In the figure, the main body member 30 has a tube 38, and the tube 38 firmly holds a shaft 37, and the shaft 37 passes through a rod 35 inside the tube 38. A ratchet wheel 36 is pivotally connected to one end of the rod 35 that extends into the tube 38. A joint 31 is integrally designed with the other end of the rod 35. The joint 31 is outside the tube 38, and an installation portion 32 in the form of an open slot is formed at the free end of the joint 31. Two holes 33 are provided on the top and bottom surfaces of the joint 31. Two buttons 34 are assembled in the corresponding holes 33 in a free-falling manner. Each button 34 does not leave the joint 31 and does not enter the installation portion 32.

[0071] Wherein, the main body member 30 further has an adjustment mechanism 40. A compression spring 45 of the adjustment mechanism 40 is inside the tube 38, and one end of the compression spring 45 abuts against the ratchet wheel 36 of the rod 35 through a pressing contact block 46.

[0072] Then look at Figure 2 、 Figure 3 , the adjustment mechanism 40 includes, but is not limited to: a grip 41, a screw 43 and a follower 44. The grip 41 is hollow, and it is combined with a straight section 431 of the screw 43 through a connecting member 48. The straight section 431 passes through a bearing 47 and maintains a screwed relationship with a controller 49. The bearing 47 is inserted into a pipe orifice (not labeled) 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 grip 41 sleeved outside the tube 38 can rotate in the same direction as the screw 43 inside the tube 38. The rotation angle of the grip 41 around the tube 38 is preset and belongs to the design scope of the controller 49, which is not the core of the technology of this case. Those interested can refer to the U.S. Patent No. 7,836,781, so it will not be elaborated here.

[0073] In this embodiment, the follower 44 is a tube body, a threaded section 441 is formed inside the tube body, and a straight groove 442 is recessed on the outer surface of the tube body. When the follower 44 is combined with the screw 43 with the threaded 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 groove 442 to limit the linear reciprocating motion of the follower 44 in the tube 38 and determine the end point of the stroke of the follower 44. In addition, a positioning tube 443 is sleeved on the tube 38 and fixed, and the positioning tube 443 prevents the pin 39 from leaving the tube 38. At the same time, the grip 41 shields the positioning tube 443.

[0074] The main body member 30 further has an indication unit 50. The indication unit 50 includes, but is not limited to: a kit 51, a transparent cover 59, a color code table 60, a transparent cover 70 and an indication ring 80.

[0075] Among them, the kit 51 is also a tube body. A base 53 bulges from the tube body. The base 53 has a receiving portion 56, and two holes 57 penetrating through to the kit 51 are formed in the receiving portion 56 in the thickness direction. When the tube 38 passes through the kit 51, two fasteners 58 are locked into the tube 38 through the holes 57, so that the kit 51 is fixed immovably beside the positioning tube 443. The base 53 also has a tip 54. A torque unit 55 is provided between the tip 54 and the receiving portion 56. The torque unit 55 is engraved on the surface of the base 53, and the torque value is represented by Nm in the International System of Units.

[0076] In this embodiment, the color code table 60 is a single printed matter. The printed matter is placed in the receiving portion 56 and is pressed by the transparent cover 59 embedded in the base 53. The color code table 60 is printed with a set of color codes and four numerical symbols, and each numerical symbol is in the center of the color code. For example, the numerical symbol 61a represents that the critical point of the torque of the first color code 61 is 18 Nm; the numerical symbol 62a represents that the critical point of the torque of the second color code 62 is 42 Nm; the numerical symbol 63a represents that the critical point of the torque of the third color code 63 is 55 Nm; the numerical symbol 64a represents that the critical point of the torque of the fourth color code 64 is 65 Nm.

[0077] In some embodiments, there is no printed matter. The color code table 60 is provided on the bottom surface of the transparent cover 59 by techniques such as smearing, arranging, or printing. Looking at the transparent cover 59, the set of color codes and numerical symbols 65 can also be seen, but the fasteners 58 below the color code table 60 cannot be seen.

[0078] The kit 51 passes through the indicating ring 80. The indicating ring 80 is between the tip 54 and the positioning tube 443 and can rotate around the kit 51 but cannot move along the axial direction of the kit 51. A gear 81 is formed on the outer surface of the indicating ring 80, and the gear 81 meshes with a continuous set of teeth 42 on the inner side of the grip 41. A groove 87 is formed on the outer surface of the indicating ring 80, and a set of color areas and a set of scales 86 are provided inside the groove 87.

[0079] In addition, the transparent cover 70 is outside the kit 51. A set of convex ribs 74 on the inner side of the transparent cover 70 catches a groove 52 of the kit 51, preventing the transparent cover 70 from leaving the kit 51 along the axial direction of the tube 38. A second opening 72 of the transparent cover 70 faces the grip 41. A first opening 71 of the transparent cover 70 has a recess 73, and the recess 73 is a V-shaped notch that tapers from the first opening 71 towards the second opening 72 and fits the tip 54 of the base 53 to prevent the transparent cover 70 from rotating around the kit 51. Therefore, the transparent cover 70 fixedly shields the indicating ring 80.

[0080] From Figures 4 - 7It is not difficult to find that the number of this group of color zones is four, namely: a first color zone 82, a second color zone 83, a third color zone 84 and a fourth color zone 85. This group of graduations 86 is located between the first color zone 82 and the fourth color zone 85.

[0081] In Figures 1 - 4 , the grip 41 rotates relative to the tube 38 under force, driving the screw 43 to drive the follower 44 to retreat towards the bearing 47, thereby releasing part of the force of the compression spring 45. With the gear 81 remaining in meshing or engaging relationship with the tooth 42, the indicating ring 80 rotates in the same direction around the kit 51, instantly reflecting the torque adjustment degree of the grip 41 on the main body member 30.

[0082] The tip 54 of the seat body 53 extends towards the indicating ring 80, and the fourth color zone 85 is aligned with the tip 54, indicating that the torque critical point of the main body member 30 is 65 Nm. The color (or color system) of the fourth color zone 85 is the same (or approximate) as the fourth color code 64, representing that 65 Nm conforms to the set value of the torque critical point of the central digital symbol 64a of the fourth color code 64.

[0083] Because the adjustment mechanism 40 belongs to a mechanical structure and there may be an error of ±5 Nm, the torque of the main body member 30 reaches the range of 65 ± 5 Nm.

[0084] The torque of the main body member 30 comes from the force generated by the deformation of the compression spring 45, and this force 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 adjustment mechanism 40, then the rattling wheel 36 and the pressing 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 ± 5 Nm.

[0085] As Figure 2 、 Figure 3 、 Figure 5 shown, the grip 41 drives the screw 43 to make the follower 44 retreat, changing the force exerted by the compression spring 45 on the joint. Under the condition that the gear 81 meshes or engages with the tooth 42, the indicating ring 80 rotates in the same direction around the kit 51, instantly reflecting the degree of torque adjustment of the grip 41.

[0086] When the tip 54 faces the third color zone 84, the third color zone 84 and the third color code 63 are in a color-matching relationship. Without the need to memorize or calculate, it is known that the torque of the main body member 30 is approximately in the range of 55 ± 5 Nm, which is equivalent to the torque critical point represented by the digital symbol 63a of the third color code 63 in the color code table 60.

[0087] In Figure 2 、 Figure 3 、 Figure 6According to the aforementioned adjustment action, the torsion degree of the main body member 30 is changed. At this moment, the tip 54 faces the second color area 83. Referring to the numerical symbol 62a of the second color code 62 for same-color pairing, without the need to memorize or calculate, it can be known that the main body member 30 has a torque in the range of 42 ± 5 Nm.

[0088] As Figure 2 、 Figure 3 、 Figure 7 shown, the grip 41 rotates, driving the indicating ring 80 to rotate in the same direction, aligning the first color area 82 with the tip 54 of the seat body 53. Under the same-color pairing of the first color code 61, without the need to memorize or calculate, it can be known that the main body member 30 has a torque in the range of 18 ± 5 Nm, which conforms to the torque critical point of the first color code 61 prompted by the numerical symbol 61a.

[0089] Looking back at Figure 1 , the head member 11 has a body 12. The body 12 has two fixed jaws 13, and the two fixed jaws 13 are separated by a distance 15. The side of the two fixed jaws 13 facing each other is defined as the driving surface 14. A raised block 16 is formed on the top surface of the body 12. The raised block 16 extends outwards with a convex portion 17. A bead groove is formed on the bottom surface of the convex portion 17 (see Figure 9 ). An elastic member 18 and a bead 19 are arranged in the bead groove. The elastic member 18 pushes the bead 19 to partially protrude from the surface of the convex portion 17, and the bead 19 does not easily leave the convex portion 17. In addition, a fourth identification color 23 is applied to 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 engraved on the top surface of the raised block 16.

[0090] In Figure 8 、 Figure 9 , the convex portion 17 is inserted into the mounting portion 32, and the bead 19 is used to push one of the buttons 34 to protrude from the outer surface of the joint 31. Since the two fixed jaws 13 make the head member 11 resemble the contour of an open-end wrench, the head member 11 and the main body member 30 are combined to form a wrench 10 with an open-end wrench function.

[0091] When the button 34 is forced to retract into the hole 33, the button 34 pushes the bead 19 to retract into the bead groove of the convex portion 17, releasing the locking relationship between the bead 19 and the hole 33, allowing the convex portion 17 to be withdrawn from the mounting portion 32, which is beneficial for the main body member 30 to replace other head members 11. During the release of the locking relationship, the elastic member 18 is squeezed by the bead 19. After the convex portion 17 leaves the mounting portion 32, the elastic member 18 pushes the bead 19 to protrude from the surface of the convex portion 17, waiting for the next use.

[0092] When performing the locking or loosening operation, the two fixed jaws 13 apply force to the corners of the threaded component (such as the head of a nut or a screw) on both sides of the threaded component with two driving surfaces 14. Therefore, an overly large across-flat distance of the head of the nut or screw means that the threaded component cannot fit between the two fixed jaws 13. A too small across-flat distance means that the two driving surfaces 14 cannot effectively contact the corners of the threaded component. In other words, the head member 11 is suitable for a single threaded component with a size specification of an across-flat distance of 29 mm, which conforms to the fourth identification symbol 27 represented by a set of Arabic numerals 29.

[0093] According to Figure 4 、 Figure 8 It can be seen that the representative color of the fourth identification symbol 27 is the fourth identification color 23, and the fourth identification color 23 belongs to the same or similar color system as the fourth color code 64. It is better to pair with the torque of the fourth color area 85. Adjust the torque of the adjusting wrench 10 until the fourth color area 85 of the indicating ring 80 aligns with the tip 54 of the seat body 53. There is no need to memorize or calculate. The main body member 30 provides a torque of 65 ± 5 Nm, acting as the critical point of the head member 11, and is suitable for threaded components with a size specification of 29 mm.

[0094] Such as Figure 5 、 Figure 10 As shown, the second embodiment of the torque tool of the present invention has a structure substantially the same as that of the first embodiment. The difference is that: First, a third identification symbol 26 is on the top surface of the raised block 16, representing that the distance 15 is equivalent to a threaded component with an across-flat distance of 26 mm. In other words, the distance 15 of the head member 11 is less than the distance of the first embodiment.

[0095] Second, 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.

[0096] There is no need to memorize or calculate. The third identification color 22 is paired with the same-color third color code 63 and the third color area 84. The main body member 30 provides a torque in the range of 55 ± 5 Nm, which is the torque critical point suitable for the head member 11 to rotate a threaded component with an across-flat distance of 26 mm.

[0097] In Figure 6 、 Figure 11 Shown is the third embodiment of the torque tool of the present invention. Its structure is substantially the same as that of the second embodiment. The difference is that: First, a second identification symbol 25 is on the top surface of the raised block 16, representing that the distance 15 is equivalent to an across-flat distance of about 22 mm of the threaded component. In other words, the distance 15 of the head member 11 is smaller than the distance of the first embodiment.

[0098] Furthermore, the representative color of the second identification symbol 25 is a second identification color 21, which is provided 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.

[0099] According to the second identification color 21, the second color code 62, and the second color area 83 that are paired by the same color, the main body member 30 provides a torque in the range of 42 ± 5 Nm, which is suitable for the torque critical point of the head member 11 to rotate a 22-mm screw member.

[0100] In Figure 7 、 Figure 12 FIGs. show a fourth embodiment of the torque tool of the present invention, the structure of which is substantially the same as that of the third embodiment, and the differences are as follows: First, a first identification symbol 24 is provided on the top surface of the raised block 16, representing that the distance 15 is equivalent to the opposite side distance of about 17 mm of the screw member. In other words, the distance 15 of the head member 11 is smaller than the distances of the first and second embodiments.

[0101] Second, the representative colors of the first identification symbol 24 are two first identification colors 20, which are respectively arranged on the side surface of the main body 12 and extend from the top surface of the raised block 16 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 that are paired by the same color, the main body member 30 provides a torque in the range of 18 ± 5 Nm, which is suitable for the torque critical point of the head member 11 to rotate a screw member with an opposite side distance of 17 mm.

[0102] According to the corresponding relationship between the same-color pairing, the size specification of the screw member, and the torque critical point, a table is made. In the table, the size specification of the screw member is represented in mm, and the torque value is represented by Nm in the International System of Units.

[0103]

[0104] The head members 11 of the first to fourth embodiments form a group, and together with a single main body member 30, they form a torque tool. From the perspective of the screw member, the screw member is inserted into the head member 11, and the same-color identification color and color code are compared. Referring to the critical values of the reference numeral symbols 61a to 64a, the torque critical point of the main body member 30 is changed until the color area of the same color on the indicating ring 80 is aligned with the tip 54. This method of operating the wrench 10 is very simple and suitable for general users with low (or unfamiliar) experience.

[0105] On the contrary, by rotating the grip 41, the torque critical point of the main body member 30 is changed. According to the reference numeral symbols 61a to 64a, a head member 11 with the same (or approximate) identification color of the color code is found, which is suitable for a highly experienced (or skilled) professional user to drive a screw member with a size specification that fits the head member 11 to rotate.

[0106] Figure 13This is the fifth embodiment of the torque tool of the present invention. Its structure is generally the same as that of the first embodiment, except that: the head member 11a also has a body 12a. One end of the body 12a forms a convex portion 17, and the convex portion 17 is provided with an elastic bead 19. Therefore, the convex portion 17 is inserted into the installation portion 32 of the joint 31, and the bead 19 jacks up the button 34 to generate a locking relationship, completing the assembly of the head member 11a and the main body member 30.

[0107] The difference between the fifth embodiment and the first embodiment is that: a fixed jaw 13a stands at the other end of the body 12a. The root of the fixed jaw 13a is an opening groove 29a formed in the body 12a, and the opening groove 29a communicates with an operation hole 19a of the body 12a. A screw knob 18a is placed in the operation hole 19a, and it maintains a rotational connection relationship with the body 12a. A straight rod 16a is inserted into the opening groove 29a of the body 12a. One side of the straight rod 16a is connected to a movable jaw 14a, and the other side forms a row of teeth 17a. The teeth 17a engage or bite the screw knob 18a to provide the power required for the straight rod 16a to move in the opening groove 29a, changing the distance 15a between the movable jaw 14a and the fixed jaw 13a.

[0108] In this way, the head member 11a has the contour of an adjustable wrench, and it combines with the main body member 30 to form a wrench 10 with the function of an adjustable wrench.

[0109] Secondly, in the same-color pairing part of the foregoing table, there are slightly some changes in the head member 11a. Simply put, on the outer side of the body 12a, a first identification color 20a, a second identification color 21a, a third identification color 22a, and a fourth identification color 23a are provided. The first identification color 20a is connected to a first identification symbol 24a that is bent, the second identification color 21a is connected to a second identification symbol 25a that is bent, the third identification color 22a is connected to a third identification symbol 26a that is straight, and the fourth identification color 23a is connected to a fourth identification symbol 27a that is bent. An indicating portion 28a on the side of the movable jaw 14a is an arrow, and the tip of the arrow points to any identification symbol. By virtue of the pairing relationship between the same-color identification colors and color codes (or color areas), the main body member 30 provides the torque required for the head member 11a to rotate the screw connector.

[0110] Figure 14 Describe that the main body member 30 combines with a head member 11b to become the 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 and the head member 11b are designed as a whole, and the convex portion 17 is inserted into the installation portion 32 of the joint 31, so that the head member 11b and the main body member 30 are combined into one body.

[0111] The head member 11b of the sixth embodiment is different from that of the first embodiment in that the body 12b has an opening 15b, causing the head member 11b to present a Y-shaped body. A driving surface 14b on the inner side of the body 12b means that continuous teeth extend from one side of the opening 15b to the other side, making the head member 11b have the contour of an open-end box wrench. The head member 11b is combined with the main body member 30 to form a torque tool, which also has the functional structure of an open-end box wrench.

[0112] Secondly, according to the color matching relationship in the aforementioned table, the first identification color 20b on the outer side of the body 12b indicates that the main body member 30 provides a torque in the range of 18 ± 5 Nm, suitable for the head member 11b to rotate a screw member with a size of 17 mm.

[0113] The same main body member 30 is combined with a head member 11c to form the seventh embodiment of the torque tool of the present invention. The head member 11c is the same as that of the first embodiment in that the structure of the main body member 30 remains unchanged. The convex portion 17 and the head member 11c are designed as a whole, 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 combined into one body.

[0114] The head member 11c of the seventh embodiment is different from that of the first embodiment in that the body 12c presents an O-shaped body, and its inner side is surrounded by continuous teeth to form a driving surface 14c, causing the head member 11c to have the contour of a socket 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 socket wrench.

[0115] In addition, a second identification color 21b is arranged on the surface from the body 12c to the convex portion 17. According to the color matching relationship in the aforementioned table, in order for the head member 11c to rotate a screw member with a size of 22 mm, the main body member 30 provides a torque in the range of 42 ± 5 Nm.

[0116] Figure 15 It is a perspective view showing the eighth embodiment of the torque tool of the present invention. Figure 16 It is a plan view, magnifying the circled area 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 head member 11 is combined with the main body member 30 to form a wrench 10.

[0117] The difference between the eighth embodiment of the torque tool and the first embodiment is that there is no color area. Along the circumferential direction, the set of scales 86 is engraved on the outer surface of the indicating ring 80.

[0118] According to the same-color pairing principle, the fourth color code 64 of the color code table 60 is used to identify the reference color. Referring to the numerical symbol 64a of the fourth color code 64, rotate the grip 41 to drive the indicating ring 80 to rotate in the same direction until the seat body 53 aligns the tip 54 with the scale 86, so that the main body member 30 is adjusted to the torque critical value of 65 Nm, which is suitable for the head member 11 to rotate a screw member with a size specification of 29 mm, and also has the function of color identification.

[0119] Figure 17 It is also a three-dimensional view showing the ninth embodiment of the torque tool of the present invention. Figure 18 It is a plan view, magnifying the circled area of the main body member 30 of the ninth embodiment. The structure of the ninth embodiment is generally the same as that of the first embodiment, and the head member 11 is combined with the main body member 30 to form a wrench 10.

[0120] The difference between the ninth embodiment and the first embodiment is that there is no complete indicating unit. The main body member 30 has an arrowhead portion 541, which protrudes from the outside of the kit. It retains the tip 54 and the torque unit 55, and the torque unit 55 is on the top surface of the arrowhead portion 541.

[0121] The tip 54 of the arrowhead 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 memorization or calculation, it can be known that the screw member with a torque of (55 ± 5 Nm) is not suitable for the head member 11 to rotate. At this moment, the torque of the main body member 30 should be adjusted according to the foregoing description.

[0122] Figure 19 It is an exploded three-dimensional view showing the tenth embodiment of the torque tool. Figure 20 It is a plan view showing the combined state of the tenth embodiment.

[0123] The same part of the structure of the tenth embodiment and the first embodiment is that the head member 11d is combined with the main body member 30a to form a torque tool. According to the same-color pairing principle, the fourth identification color 23 of the head member 11d is the same (or approximate) as the fourth color area 85 of the indicating ring 80a, so the critical point of the torque of the main body member 30a is suitable for the preset value of the head member 11d.

[0124] Secondly, the fourth identification color 23 is coated at different positions on the head member 11d, which is also within the allowable range of the present invention.

[0125] The difference between the head member 11d of the tenth embodiment and the first embodiment is that: firstly, the head member 11d is composed of a screwdriver bit 90 combined with a sleeve 91, and the end face of the sleeve 91 is recessed into a square coupling hole 92.

[0126] Second, the main body member 30a has a main body 41a with torque. One end of the main body 41a extends out a coupling post 93, and an elastic bead 94 is arranged on the coupling post 93. When the coupling post 93 is inserted into the coupling hole 92, the bead 94 abuts against the wall of the sleeve 91 surrounding the coupling hole 92 to support the driving end of the screwdriver bit 90 to rotate and screw the threaded part, such as the groove of a flat head screw. In this way, the main body member 30a and the main body 41a are combined to form a torque tool of a torque screwdriver 10a.

[0127] Third, a rotary knob 49a is installed at the other end of the main body 41a, and the rotary knob 49a is part of the controller 49. Between the rotary knob 49a and the main body 41a is a transparent cover 70a, and the transparent cover 70a is fixed and used to shield the periphery of the indicating ring 80a.

[0128] Fourth, the arrowhead part 542 is recessed in a groove on the surface of the main body 41a, and the groove has a tip 54 facing any color area of the indicating ring 80a.

[0129] Fifth, the color code table 60 has an additional fifth color code 65, and the color of the fifth color code 65 is the same as or similar to the fifth color area 88 of the indicating ring 80a. In the center of the fifth color code 65 is a numerical symbol 65a representing the 80 Nm torque critical point.

[0130] Sixth, the fifth color area 88 and the third color area 84 are on both sides of the fourth color area 85, and there is also a set of Arabic numerals representing the 80 Nm set value in the center of the fifth color area 88.

Claims

1. A torque tool with color recognition function, characterized in that, Comprising: A plurality of head members, each head member including an identification color; A main body member connected to one of the selected head members, a torque of the main body member being transmitted to the head member, the torque being capable of adjusting a set of critical points for the identification color; A color code table disposed on the main body member, the color code table including a set of color codes corresponding to the identification colors of the head members and a plurality of numerical symbols, the numerical symbols in the color codes representing the critical points of the torques corresponding to the color codes; An indicator formed on the main body member; And An indicating ring provided on the main body member and capable of moving in a circumferential direction, the indicating ring having a set of color zones, the set of color zones being aligned with the indicator to display the critical points of the torque of the main body member, the identification color being the same as or similar to the color codes and the color zones, the critical points of the torque of the main body member being applicable to the head member.

2. The torque tool with a color recognition function according to claim 1, characterized in that A seat of the main body member has a receiving portion, the receiving portion being combined with a transparent cover, and the color code table is between the transparent cover and the receiving portion.

3. The torque tool with a color recognition function as described in claim 2, wherein The color code table is clamped between the transparent cover and the receiving portion of the seat body.

4. The torque tool with a color recognition function according to claim 2, characterized in that, The color code table is printed on the bottom surface of the transparent cover.

5. The torque tool with a color recognition function as described in claim 1, wherein, The set of color codes includes but is not limited to: a first color code, a second color code, a third color code, and a fourth color code.

6. The torque tool with a color recognition function as claimed in claim 1, wherein, The number of color zones of the indicating ring corresponds to the number of color codes of the color code table, and each color zone represents one of the critical points of the torque of the main body member.

7. The torque tool with a color recognition function as described in claim 6, wherein, The indicating ring includes four color zones, and the color code table includes four color codes.

8. The torque tool with a color recognition function according to claim 2, wherein, The indicator is a tip extending from the seat body towards the indicating ring.

9. The torque tool with a color recognition function as claimed in claim 8, wherein, A torque unit of the seat body is between the receiving portion and the tip.

10. The torque tool with a color recognition function as described in claim 1, wherein, A transparent cover is provided on the main body member, fixedly shielding the indicating ring.

11. A torque tool with a color recognition function, characterized in that, Comprising: A plurality of head members, each head member including an identification color; A main body member connected to one of the selected head members, a torque of the main body member being transmitted to the head member, the torque being capable of adjusting a set of critical points for the identification color; An indicator formed on the main body member; And An indicating ring provided on the main body member and capable of moving in a circumferential direction, the indicating ring having a set of color zones, the set of color zones being aligned with the indicator to display the critical points of the torque of the main body member, the identification color being the same as or similar to the color zones, the critical points of the torque of the main body member being applicable to the head member.

12. The torque tool with a color recognition function according to claim 11, wherein The set of color zones includes but is not limited to: a first color zone, a second color zone, a third color zone, and a fourth color zone.

13. The torque tool with a color recognition function as claimed in claim 11, wherein, The main body member protrudes a arrowhead portion, and the indicator is a tip extending from the arrowhead portion towards the indicating ring.

14. The torque tool with a color recognition function according to claim 13, characterized in that, The top surface of the arrowhead portion has a torque unit.

15. The torque tool with a color recognition function according to claim 11, wherein, The main body member forms a groove-like arrowhead portion, and the indicator is a tip extending from the arrowhead portion towards the indicating ring.

16. The torque tool with a color recognition function according to claim 11, wherein, A transparent cover is provided on the main body member, fixedly shielding the indicating ring.

17. The torque tool with a color recognition function as described in claim 11, wherein, The indicating ring also has a set of numerical symbols, and the numerical symbols represent the torque critical values corresponding to the color zones.

18. A torque tool with color recognition function, characterized in that, Comprising: A tube; A rod pivotally connected to the tube, one end of the rod extending into the tube and receiving a torque; A joint connecting the other end of the rod; A grip rotatably disposed on the tube, the torque being transmitted from the grip through the tube to the rod and the joint, the grip changing one of the critical points of the torque; A color code table disposed on the tube, the color code table including a set of color codes, each color code corresponding to a critical point of the torque; And An indicating ring rotates in the same direction as the grip around the tube, and a set of color zones on the indicating ring correspond in color to the set of color codes in the color code table.

19. The torque tool with a color recognition function as claimed in claim 18, wherein A base body is fixed relative to the tube. The base body has a receiving portion, and the receiving portion is combined with a transparent cover. The color code table is located between the transparent cover and the receiving portion.

20. The torque tool with a color recognition function according to claim 19, wherein A transparent cover shields the indicating ring fixedly on the tube. A recess of the transparent cover fits a tip of the base body, and the tip faces the color zones of the indicating ring.

21. The torque tool with a color recognition function according to claim 19, characterized in that, Between the receiving portion and the tip is a torque unit provided on the base body.

22. The torque tool with a color recognition function according to claim 19, wherein The color code table is clamped between the transparent cover and the receiving portion of the base body.

23. The torque tool with a color recognition function according to claim 19, characterized in that, The color code table is printed on the bottom surface of the transparent cover.

24. The torque tool with a color recognition function according to claim 18, wherein A set of scales is provided on the surface of the indicating ring instead of the set of color zones.

Images