TWI715452B - Compass - Google Patents

Abstract

A compass is provided with an outer cover, a movable device, two supporting legs and an operating member. The top of the outer cover penetrates a limit hole. The movable device can move up and down relative to the outer cover and has a first axis and a connecting part And two connecting parts, the two connecting parts are respectively located on both sides of the first axis, the two legs are relatively open and close to the outer cover and are respectively rotatably combined with the two connecting parts, the operating member has A connecting end, an operating end, and a limiting portion located between the two ends are provided in a length direction. The connecting end is rotatably combined with the connecting portion, and the operating end is located outside the limiting hole so that the The operating member can swing with the joint end as a fulcrum, and by opening and closing the two legs, the movable device is linked to drive the operating member to move up and down relative to the outer cover along the length direction.

Description

Compass

The invention relates to a compass, in particular to a compass that can be used for stable rotation.

Compasses can provide users with one of the stationery for drawing circular or arc-shaped lines. However, in general, when operating the compass, you must use your fingers to turn the compass. At the same time, the whole hand will follow the rotation. It is not easy to achieve balance and the compass is easy to accidentally drop. , Causing inconvenience in use, so later improved structures, such as the "compass" of Mainland China Invention Patent Publication No. 102152694 B, which has a body and an operating part, the body is provided with two legs and one and the two A center drive with a combination of feet, and the operating member is combined with a support at the top of the center drive. The support can freely rotatably support the operating member so that the direction of the axis of rotation of the operating member can be changed. This operating element is convenient for applying force to draw a circle with a tilted pendulum, but the pendulum mode is only suitable for drawing large circles, which is not conducive to drawing small circles. Therefore, when you want to draw small circles, the rotatable operating element of the compass makes it difficult To operate, the user must remove the operating member, hold the support member and rotate it to draw a circle. Therefore, the user must constantly try to cover or remove the operating member according to the required arc size, and there is no automatic adjustment mechanism. Cause inconvenience in use.

In addition, the compass of Japanese Patent No. 5620842 discloses an operating structure that can be pivotally held. However, when the compass is used to draw a circle with a small radius, the operating structure will be shaken at will and the user cannot rotate stably. The compass is extremely difficult to operate, and there is indeed room for improvement.

Therefore, in order to solve the problem that the existing compasses are difficult to operate and cannot quickly adjust the yaw operation angle according to the radius requirement and cannot easily draw large and small circles, the present invention provides a compass that can freely select the yaw operation range to draw circles. In addition, the deflection operation angle can be automatically adjusted with the opening angle of the feet, so as to easily draw circles with different radii, which can effectively improve these problems.

Based on the above objective, the present invention is to provide a compass, which includes: An outer cover with a limiting hole through the top; A movable device having a first axis. The movable device is provided with a coupling portion and two connecting portions. The coupling portion is located on the top of the movable device. The two coupling portions are respectively located on both sides of the first axis. The device can move up and down relative to the outer cover; Two legs are connected to the outer cover in a relatively open and close manner, and are respectively rotatably combined with the two connecting parts of the movable device; and An operating member having a length direction, the operating member is provided with a coupling end and an operating end that are away from each other along the length direction, a limit portion is provided between the coupling end and the operating end, and the operating end Is located outside the limit hole of the outer cover, the joint end of the operating member is rotatably combined with the joint part of the movable device, so that the operating member can swing with the joint end as a fulcrum, and by The opening and closing of the two legs is linked with the movable device to drive the operating member to move up and down relative to the outer cover along the length direction.

With the above technical means, the compass of the present invention has at least the following advantages and effects: 1. The compass of the present invention is selectively restricted by the operating member relative to the outer cover, providing the user with the freedom to select the deflection operation range to operate the compass, drawing a large circle or a small circle quickly and easily, greatly improving the operation of the compass The diversity and practicality of the above. 2. The compass of the present invention, through the length of the operating member protruding from the limiting hole, can become longer as the radius of the circle/arc of the two legs becomes larger, so that the swing angle of the operating member varies with The automatic adjustment becomes larger. Therefore, the yaw operation angle of the compass of the present invention can be automatically adjusted according to the radius of the circle/arc, so that the user can easily draw circles/arcs with different radii according to their needs. The problem that the deflection angle of the existing rocking operating member cannot be adjusted is improved.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented in accordance with the content of the specification, the preferred embodiment shown in the figure is further described in detail as follows:

The present invention provides a compass. Please refer to the first preferred embodiment shown in FIGS. 1 to 4. The compass includes a movable device 10, two legs 20, an operating member 30 and an outer cover 40.

The movable device 10 is arranged in the outer cover 40 to move up and down relative to the outer cover 40. The movable device 10 has a first longitudinal axis C ₁ , and is provided with a connecting portion 11 and two connecting portions 12, the connecting portion 11 is located at the top of the movable device 10 and deviated from the first axis C ₁ , the coupling portion 11 can be a concave portion or a convex portion, and the two connecting portions 12 are respectively symmetrically located on both sides of the first axis C ₁ , and respectively with respect to the first axis C ₁ close to / away from swinging further, the active device 10 having a combination of two halves 13, the bonding portion 11 such that line 13 is located between the two halves, and the halves The body 13 is combined by a number of concave and convex grooves 131 and protrusions 132. Furthermore, each connecting portion 12 of the movable device 10 includes a swingable connecting rod 14, and each connecting rod 14 is away from the operating member The part 30 is a swing end, and the two connecting rods 14 are located between the two halves 13. Preferably, the movable device 10 can be provided with a guiding structure toward the outside, and the outer cover 40 is provided with a positioning structure corresponding to the inner side, so that when the movable device 10 moves up and down relative to the outer cover 40, the guiding structure can Move along the positioning structure to improve the stability of the movable device 10 in linear movement, wherein the linear movement direction of the movable device 10 is along the first axis C ₁ ; in specific implementation, the movable device 10 has two On the opposite outer side, the guiding structure can be provided with a guiding portion 15 on the two outer sides of the movable device 10, and each of the guiding portions 15 is located on the outer side of one half of the body 13 and is a strip-shaped rib .

The two legs 20 are relatively open and close to the outer cover 40, and are respectively rotatably combined with the two connecting portions 12 of the movable device 10. The top of each leg 20 is provided with a pivoting portion 21 and A coaxial portion 22. The pivotal portion 21 is relatively located outside the coaxial portion 22 and is rotatably combined with one of the connecting portions 12 of the movable device 10, and further, the pivotal portion 21 of each leg 20 Is pivotally connected to the swing end of one of the connecting rods 14 of the movable device 10, and the coaxial portions 22 of the two legs 20 are superimposed and combined, so that the bottom ends of the two legs 20 can be relatively close or far away, In conjunction with the symmetrical configuration of the two connecting portions 12 of the movable device 10 relative to the first axis C ₁ and the linear movement of the movable device 10, the two legs 20 can be opened more accurately and synchronously relative to the first axis C ₁ or closed, i.e. the two legs 20 may be maintained constant with respect to the consistency of the first axis C ₁ of the opening angle, thereby allowing the compass in the present invention can be performed using stably rotated along its center of gravity.

The operating member 30 has a length direction. Along the length direction, the operating member 30 is provided with a coupling end 31 and an operating end 32 that are separated from each other, and a limiting portion is provided between the coupling end 31 and the operating end 32 33. The operating end 32 is located outside the outer cover 40, and the coupling end 31 of the operating element 30 is rotatably coupled with the coupling portion 11 of the movable device 10, so that the operating element 30 can use the coupling end 31 It is a fulcrum for swinging. Further, when the coupling portion 11 is a concave portion, the coupling end 31 of the operating member 30 is a spherical body matching the shape of the coupling portion 11; in addition, the limiting portion 33 can be a The structure in which the outer diameter gradually increases from the coupling end 31 to the operating end 32, by means of the larger outer diameter of the limiting portion 33 close to the operating end 32, higher rigidity can be provided and avoiding the use of multiple swings. Affect the structural strength of the operating member 30; and the outer diameter of the limiting portion 33 near the coupling end 31 is small, the volume of the coupling portion 11 of the movable device 10 can be reduced accordingly, thereby reducing the overall volume of the movable device 10 ; Among them, the operating end 32 can be formed as a block or plate with a relatively large volume for easy holding.

Further, please refer to FIG. 4, the first axis C ₁ of the movable device 10 is parallel to the longitudinal direction of the operating member 30, and the coupling end 31 of the operating member 30 has a connection with the operating member 30 30 second axis C ₂ parallel to the length direction, there is an eccentric distance E between the two central axes C ₁ and C ₂ ; furthermore, the pivotal portion 21 of one of the legs 20 is relative to the first The axis C ₁ is located on the same side as the second axis C ₂ and is defined as an eccentric side leg, and there is a linear distance S between the pivotal portion 21 to which the eccentric side leg 20 belongs and the coaxial portion 22, Preferably, the eccentric distance E is less than or equal to the linear distance S. In detail, as shown in FIGS. 4 and 5, the centers of the coaxial portions 22 of the two legs 20 are located on a first extension line. P _1, P ₁ a first line extending perpendicular to the first axis C _1, the eccentric side leg portion 21 pivoted to the center line 20 of bit lines extending in a second P _2, the first, second extension line P ₁ and P ₂ are parallel lines, and the linear distance S refers to the vertical distance between the first extension line P ₁ and the second extension line P ₂ . Since the eccentric distance E is less than or equal to the linear distance S, in an ideal state, that is, regardless of factors such as shape or volume, the coupling end 31 of the operating member 30 is directly above the pivotal portion 21 of the eccentric side leg 20 , Is the easiest way to apply force to draw a circle; if the eccentric distance E exceeds the linear distance S, it is not easy to apply force when drawing a small circle. Furthermore, the two legs 20 are respectively a stitch and a pen, the connecting end 31 of the operating member 30 is combined with the connecting portion 12 corresponding to the pen, that is, the eccentric side leg 20 is a pen foot.

The outer cover 40 is combined with the two legs 20. The outer cover 40 has two opposite inner sides and is provided with a fixing member 41 and a limiting hole 42. The fixing member 41 penetrates a common portion of the two legs 20. The shaft 22 connects the two legs 20 with the outer cover 40, and the limiting hole 42 penetrates the top of the outer cover 40 so that the operating end 32 of the operating member 30 is located in the limiting hole 42 of the outer cover 40 outside, and by the opening and closing of the legs 20, the movable interlocking means 10 moves along the extending direction of the first axis C _1, so as to drive the operation member 30 along its length with respect to the outer cover 40 moves up and down , So that the limiting portion 33 of the operating member 30 can selectively contact with the limiting hole 42 of the outer cover 40 when swinging; wherein, the coupling portion 11 of the movable device 10 is deviated from the first axis C _1, the linear limiting hole 42 to the outer cover 40 is positioned relative to the second axis C _2, and combined with the operating member 30 in connection with the end 31.

Further, as shown in FIGS. 2 and 3, in the state where the outer cover 40 is provided with a positioning structure corresponding to the guiding structure of the movable device 10, the positioning structure is attached to the inner side of the outer cover 40 There are two positioning portions 43 corresponding to the two guiding portions 15 respectively, and each positioning portion 43 is combined with one of the guiding portions 15 of the movable device 10, so that the movable device 10 is opened with the two legs 20 At this time, each guiding portion 15 can move along the corresponding positioning portion 43, so as to provide the guiding effect of the movable device 10 linearly moving up and down. In addition, the outer cover 40 may have two combined half shells 44, and the two half shells 44 are combined with the coaxial portions 22 of the two legs 20 through the fixing member 41.

The compass of the first preferred embodiment of the present invention is in the state where the two legs 20 are folded, the limiting portion 33 of the operating member 30 is submerged in the limiting hole 42 of the outer cover 40. When using it, please refer to 1 and 6, when the user opens the two legs 20, the two legs 20 will be linked to the movable device 10, so that the movable device 10 relative to the outer cover 40 along the length of the operating member 30 to drive the operation The member 30 moves upward, so that the limiting portion 33 of the operating member 30 gradually extends upward through the limiting hole 42 of the outer cover 40, and the swing angle of the operating member 30 is in line with the extension of the two legs 20. The opening angle is positively correlated, that is, the length of the operating member 30 protruding from the limiting hole 42 of the outer cover 40 will become longer as the radius of the circle/arc of the two legs 20 becomes larger, thereby making the limit The length of the position portion 33 restricted by the restriction hole 42 is shortened, so that the swing angle of the operating member 30 is automatically adjusted and increased accordingly. Therefore, the compass system of the present invention can be set according to the circle radius of the two legs 20 , Automatically adjust the swing angle of the operating member 30, which effectively improves the problem that the deflection angle of the existing swing-type operating member cannot be adjusted. It can freely select the deflection operation range to draw a circle, so as to provide users with a quick and easy control Draw a circle or arc with the required radius, which greatly improves the versatility and practicability of compass operation.

Furthermore, when the first preferred embodiment of the present invention is in use, not only can it be shown in FIG. 6, but when the two legs 20 are opened at a small angle, the operating member 30 is limited to the outer cover 40. Perform a very small swing so that the operating member 30 can be regarded as a fixed mode relative to the outer cover 40, so that the user can perform a fixed circle drawing by holding the operating member 30, so as to draw a circle or arc with a smaller radius; further, The user can also, as shown in FIG. 7, when the two legs 20 are opened to a large angle, the two connecting rods 14 are linked to drive the movable device 10 to move upward along the outer cover 40, and each guide of the movable device 10 The guiding portion 15 will move upward along the corresponding positioning portion 43 as shown in FIGS. 2 and 3, thereby driving the operating member 30 to move upward relative to the outer cover 40, so that the limiting portion 33 of the operating member 30 protrudes for limiting hole 40 of the outer cap 42 becomes longer, so that the swing angle of the operation member 30 becomes larger relative to the first axis can be inclined and C ₁ to swing freely, allowing users to operate through the holding member 30 For the compass of the present invention, the oblique pendulum is used to draw a circle, so as to draw a circle or arc with a larger radius. Among them, the user can hold the outer cover 40 to draw a fixed circle, especially when drawing a small circle, can choose to hold the two half shells 44, therefore, the first preferred embodiment of the present invention can not only Draw large or small circles of various radii quickly and easily, and provide users with diversified operation methods, effectively improving the practicability of compasses.

Furthermore, when the first preferred embodiment of the present invention is in use, no matter if the radius of the circle is small as shown in FIG. 6 or the radius of the circle as shown in FIG. 7 is large, the joint end 31 of the operating member 30 is the first There is an eccentric distance E between the second axis C ₂ and the first axis C _{1 of} the movable device 10, so that the compass of the present invention can be increased through the eccentric setting of the operating member 30 during the process of drawing a circle. The arm of the compass rotates to increase the torque value of the rotation, so that the user can perform circle drawing operations more smoothly, and it can also increase the effect of drawing large or small circles quickly and easily.

Please refer to the second preferred embodiment shown in FIGS. 8 to 10, which is similar in structure to the compass of the first preferred embodiment. The difference is that the second preferred embodiment does not have the two The movable device 10A is connected to the rod 14, and the movable device 10A is an elastic C-shaped structure. Further, the movable device 10A can also be changed from a C shape to a geometric shape such as a triangle, a quadrilateral or a polygon with a gap, and each connection of the movable device 10A The part 12A away from the operating member 30A is a swing end. The top ends of the two legs 20A are rotatably coupled with the swing ends of the two connecting parts 12A. For example, the movable device 10A is a flexible C-shaped clamp In structure, each swing end of the movable device 10A is provided with a clamping portion 16A, and the top ends of the two legs 20A are pivotally combined and respectively combined with the clamping portions 16A of the two connecting portions 12A of the movable device 10A.

When the compass of the second preferred embodiment of the present invention is used, when the two legs 20A are opened at a small angle as shown in FIG. 11, the limiting portion 33A of the operating member 30A is limited in the limiting hole 42A of the outer cover 40A The operating member 30A can be regarded as a fixed mode relative to the outer cover 40A, so that the user can hold the operating member 30A to draw a fixed circle, so that the radius of the drawing is small. Further, as shown in Figure 12, the user can also open the two legs 20A to a large angle, the movable device 10A will drive the operating member 30A to move upward relative to the outer cover 40A, so that the operating member the length of the stopper portion 33A projecting protrusion 30A of the outer cover limiting hole 40A of the stopper 42A becomes longer length becomes shorter, so that this operation can member 30A relative to the first axis C ₁ and inclined to swing freely, so that the use of By holding the operating member 30A, one can perform an oblique deflection to draw a circle with the compass of the second preferred embodiment of the present invention, so as to draw a circle or arc with a larger radius, and provide users with diversified operating methods. Effectively improve the practicability of compasses.

Please refer to the third preferred embodiment shown in FIGS. 13-15, which is similar in structure to the compass of the first preferred embodiment. The difference is that the outer cover 40B is located along the top of the operating member 30B. A grip portion 45B extends in the length direction, and the grip portion 45B can restrict the operating mode of the operating member 30B from swinging freely relative to the outer cover 40B, and the grip portion 45B can be integrally formed with the half of the shell 44B In the structure type, the limiting hole 42B is formed in the holding portion 45B, and the operating end 32B of the operating member 30B is located outside the holding portion 45B, so that the limiting portion 33B of the operating member 30B can selectively interact with the The limit hole 42B is in contact with each other; further, the compass further includes a cover 50B, and the cover 50B can be selectively combined with the bottom of the two legs 20B and the operating end 32B of the operating member 30B.

The compass of the third preferred embodiment of the present invention is in the state where the two legs 20B are folded. The limiting portion 33B of the operating member 30B is submerged in the limiting hole 42B of the outer cover 40B. When using it, please refer to 13 and 16, when the user opens the two legs 20B, the two legs 20B will link the movable device 10B, so that the movable device 10B drives the operating member 30B upward along the length of the operating member 30B. Move, so that the limiting portion 33B of the operating member 30B gradually extends upward through the limiting hole 42B of the outer cover 40B, and the swing angle of the operating member 30B is positively related to the opening angle of the two legs 20B That is, the length of the operating member 30B protruding from the limiting hole 42B of the outer cover 40B will become longer as the radius of the circle/arc of the two legs 20B becomes larger, thereby causing the operating member 30B to swing The angle is automatically adjusted accordingly. Therefore, the compass system of the third preferred embodiment of the present invention can automatically adjust the swing angle of the operating member 30B according to the circle radius setting of the two legs 20B.

Further, when the third preferred embodiment of the present invention is in use, not only can it be shown in FIG. 16, when the two legs 20B are opened at a small angle, the limiting portion 33B of the operating member 30B is limited to the grip of the outer cover 40B There are many parts in the portion 45B and only a very small swing can be performed, so that the operating member 30B can be regarded as a fixed mode relative to the outer cover 40B, so that the user can perform a fixed circle drawing by holding the operating member 30B. When drawing a circle or arc with a smaller radius; further, as shown in FIG. 17, when the two legs 20B are opened to a large angle, the two connecting rods 14B are linked to drive the movable device 10B along the outer cover 40B Moving upwards, each of the guide portions 15B of the movable device 10B will move upwards along the corresponding positioning portion 43B as shown in FIG. 14, thereby driving the operating member 30B to move upwards relative to the outer cover 40B, so that the the stopper portion 30B of the operation member protrudes from the cover 33B 40B 42B limiting hole length becomes longer, so that the swing angle of the operation member 30B becomes larger relative to the first axis can be inclined and C ₁ to swing freely, so that the use of By holding the operating member 30B, the compass of the present invention can be tilted to draw a circle with a tilt, so as to draw a circle or arc with a larger radius.

Please refer to FIG. 14, in which one leg 20B has a first engaging structure 24B at the bottom, the operating member 30B has a second engaging structure 34B where it extends out of the holding portion 45B, and the The cover 50B has a third insertion structure 51B, wherein the third insertion structure 51B can be engaged with the first insertion structure 24B or the second insertion structure 34B, so that the cover 50B and the The two legs 20B or the operating member 30B are combined; therefore, in addition to holding the operating end 32B of the operating member 30B to draw a circle, the user can also use the third engaging structure 51B as shown in FIGS. 16 and 17 It is combined with the second engaging structure 34B so that the cover 50B can act integrally with the operating member 30B, so that the cover 50B can be used to draw a circle on the compass. Therefore, it can not only pass through the cover The cover 50B increases the stability of the holding when drawing a circle, and can cover the bottom of the two legs 20B when the cover 50B is not used in a compass to provide a protective effect.

Please refer to the fourth preferred embodiment shown in FIGS. 18 to 21, which is similar in structure to the compass of the third preferred embodiment, and the difference is: the combined end of the movable device 10C and the operating member 30C There is no eccentric distance between 31C, that is, the first axis C _{1 of} the movable device 10C and the second axis C ₂ of the joint end 31C of the operating member 30C overlap without being eccentrically arranged. Further, the movable device 10C The two halves 13C are combined by a number of concave and convex grooves 131C, 131C' and protrusions 132C, 132C', and the two half shells 44C of the outer cover 40C have a coupling hole 441C and a coupling column 442C that can be combined with each other Further, each half shell 44C is provided with an arc-shaped limiting section 443C in the lower half, so that when the outer cover 40C is combined with the two legs 20C, the two limiting sections 443C can form a limiting space , So as to limit the angle at which the two legs 20C open outward relative to the outer cover 40C.

Further, please refer to FIGS. 18 and 21. In the fourth preferred embodiment of the present invention, the limiting portion 33C of the operating member 30C has a first length L ₁ , and the holding portion 45C has a second Length L ₂ , the movable device 10C defines a maximum displacement D. The first length L ₁ is not less than the sum of the second length L ₂ and the maximum displacement D, that is, L ₁ ≧ L ₂ + D. In addition, there is a gap between the limiting portion 33C of the operating member 30C and the inner wall of the holding portion 45C. Preferably, the gap is greater than 0.05 millimeters (mm).

The compass of the fourth preferred embodiment of the present invention is in the state where the two legs 20C are folded. The limiting portion 33C of the operating member 30C is submerged in the limiting hole 42C of the outer cover 40C. When using it, please refer to 18 and 22, when the user opens the two legs 20C, the two legs 20C will link the movable device 10C, so that the movable device 10C relative to the outer cover 40C drives the operation along the length of the operating member 30C The member 30C moves upward, so that the limiting portion 33C of the operating member 30C gradually extends upward through the limiting hole 42C of the outer cover 40C, and the swing angle of the operating member 30C is in line with the extension of the two legs 20C. The opening angle is positively correlated, that is, the length of the operating member 30C protruding from the limit hole 42C of the outer cover 40C will become longer as the radius of the circle/arc of the two legs 20C becomes larger, thereby making the operation The swing angle of the member 30C is automatically adjusted and enlarged accordingly. Therefore, the compass system of the present invention can automatically adjust the swing angle of the operating member 30C according to the circle radius setting of the two legs 20C, effectively improving the existing swing operating member The yaw angle cannot be adjusted to provide users with quick and easy control to draw a circle or arc with the required radius, which greatly improves the versatility and practicality of compass operation. Among them, please refer to Figures 21 to 23, taking the gap between the limiting portion 33C of the operating member 30C and the top edge of the limiting hole 42C as an example of 0.05 millimeters (mm) to illustrate the lifting distance of the operating member 30C The longer it is, the greater the pivotable angle. For example, when the operating element 30C is raised by 2 millimeters (mm), it can pivot by 1.36 degrees relative to the center axis of the limiting hole 42C; and when the operating element When 30C is raised by 9 millimeters (mm), it can deflect 2.05 degrees relative to the central axis of the limiting hole 42C.

Furthermore, when the fourth preferred embodiment of the present invention is in use, not only can it be shown in FIG. 22, but when the two legs 20C are opened at a small angle, the operating member 30C is limited to the position inside the grip portion 45C of the outer cover 40C There are more and only a very small swing, so that the user can draw a circle equivalent to a fixed circle by holding the operating member 30C, so as to draw a circle or arc with a smaller radius; further, the user can also see Figure 23 As shown in FIG. 24, when the two legs 20C are opened to a large angle, the two connecting rods 14C are linked to drive the movable device 10C to move upward along the outer cover 40C, and the guide portions 15C of the movable device 10C will As shown in Figure 19, move upward along the corresponding positioning portion 43C, thereby driving the operating member 30C to move upward relative to the outer cover 40C, so that the limiting portion 33C of the operating member 30C protrudes from the outer cover 40C. The length of the position hole 42C becomes longer, so that the swing angle of the operating member 30C becomes larger and can tilt and swing freely relative to the outer cover 40C, so that the user can handle the compass of the present invention by holding the operating member 30C. The oblique pendulum draws a circle to facilitate drawing a circle or arc with a larger radius. Among them, the user can hold the holding portion 45C to draw a fixed circle, especially when drawing a small circle, can choose to hold the holding portion 45C, therefore, the fourth preferred embodiment of the present invention can not only Draw large or small circles of various radii quickly and easily, and provide users with diversified operation methods, effectively improving the practicability of compasses.

Furthermore, when the compass of the present invention is in use, as shown in FIGS. 23 and 24, the limit space formed by the limit section 443C of the two half shells 44C of the outer cover 40C can be penetrated to limit the two The opening angle of the feet 20C relative to the outer cover 40C can effectively prevent the two feet 20C from exceeding the set opening angle.

In addition, when the compass is rotated by holding the operating member 30C, the two legs 20C are symmetrically combined with the movable device 10C through the two connecting rods 14C, so that the compass of the present invention can rotate along its center of gravity. Without deviating from the rotation and slipping off, the user can rotate the compass stably for use.

Please refer to FIGS. 25 and 26 together. In the fourth preferred embodiment of the present invention, the outer surface of the limiting portion 33C of the operating member 30C is further provided with an engaging structure 33C' adjacent to the operating end 32C. The outer diameter of the engaging structure 33C' is larger than the outer diameter of other parts of the limiting portion 33C and has an engaging depth along the length direction of the operating member 30C. The outer surface of the engaging structure 33C' is selected from a triangle , At least one of a polygon, a convex tooth and a groove, and the top end of the limiting hole 42C' of the outer cover 40C has an inner peripheral surface that matches the shape of the engaging structure 33C' of the operating member 30C, so that The limiting portion 33C of the operating member 30C can be selectively engaged with the limiting hole 42C' of the outer cover 40C, so that when the two legs 20C are closed or opened at a small angle, the card of the limiting portion 33C can pass through The joint structure 33C' is engaged with the limit hole 42C' to provide a fixed circle drawing mode, so that the swing operation range of the operating member 30C is 0 degrees, and the operating member 30C is lifted to the limit portion 33C. After the engaging structure 33C' is separated from the limiting hole 42C', the operating member 30C can automatically start the deflection mode; in addition, the outer diameter of the limiting portion 33C is directed from the lower surface of the engaging structure 33C' to the coupling end 31C The department has a uniform structure.

In addition, the end of each connecting rod 14C' of the movable device 10C that is pivotally connected to the corresponding leg 20C is an elastically deformable and engaging structure; further, as shown in FIGS. 25A and 26, each of the connecting rods 14C' is provided with a first pivotal end 141C' and a second pivotal end 142C' that are separated from each other, each of the first pivotal ends 141C' is provided with a through hole, and each of the second pivotal ends 142C' has a groove The groove 143C' makes the second pivoting end 142C' elastic, and two opposite outer surfaces of the second pivoting end 142C' are each protruding with a cylinder. The first pivoting ends 141C' of the two connecting rods 14C' It is rotatably clamped between the two halves 13C of the movable device 10C, and the perforation of the first pivot end 141C' is directly opposite to the groove 131C' and the convex post 132C' of the two halves 13C. Combined, and the two second pivot ends 142C' of the two connecting rods 14C' are elastically deformable and respectively engage with the pivot portions 21C on the tops of the two legs 20C, so that each of the second pivot ends 142C' Two cylinders with opposite outer surfaces pass through a pivot hole of the pivot portion 21C of the corresponding leg 20C, so that each connecting rod 14C' and the corresponding leg 20C can be connected to each other without a pivot The pivotal combination can reduce the number of integral components and the cost of manufacturing.

Please refer to the fifth preferred embodiment shown in FIGS. 27 to 29, which is similar in structure to the compass of the fourth preferred embodiment. The difference is that the fifth preferred embodiment does not have a In the holding portion 45C of the preferred embodiment, the limiting portion 33D of the operating member 30D is provided with an engaging structure adjacent to the operating end 32D, and the outer diameter of the engaging structure is larger than the outer diameter of other parts of the limiting portion 33D Diameter and along the length direction of the operating member 30D has an engaging depth, and the outer surface of the engaging structure is a polygon, preferably, the engaging structure is perpendicular to the longitudinal direction of the operating member 30D section It is a regular hexagon and is a hexagonal column, and the non-engaging part of the limiting portion 33D can also cooperate to form a hexagonal cone shape; the limiting hole 42D penetrates through the top of the outer cover 40D and is connected to the The inner peripheral surface of the engaging structure of the operating member 30D matches the shape, so that the limiting portion 33D of the operating member 30D can selectively engage with the limiting hole 42D of the outer cover 40D as the operating member 30D moves up and down Together.

When the compass of the fifth preferred embodiment of the present invention is in use, when the two legs 20D are closed or opened at a small angle as shown in FIG. 30, due to the limiting portion 33D of the operating member 30D and the limiting position of the outer cover 40D The hole 42D is a structure that is engaged with each other, so that the operating member 30D is limited to the limiting hole 42D of the outer cover 40D, and does not produce a rotational deflection relative to the outer cover 40D, so that the user can hold the The operating member 30D draws a circle in a fixed manner so as to draw a circle or arc with a smaller radius; further, as shown in Figure 31, the user can also drive the two connecting rods 14D when the two legs 20D are opened to a large angle. When the two halves 13D move upward along the outer cover 40D, the guide portions 15D of the movable device 10D will move upward along the corresponding positioning portions 43D as shown in FIG. 28, thereby driving the operating member 30D Stably move upwards relative to the outer cover 40D, so that the engagement structure of the limiting portion 33D of the operating member 30D is separated from the limiting hole 42D of the outer cover 40D without being engaged, so that the operating member 30D can be relatively The cover 40D tilts and swings freely, so that the user can use the operating member 30D to perform a tilted deflection to draw a circle with the compass of the present invention, so as to draw a circle or arc with a larger radius, and provide the user with a variety of The operation mode effectively improves the practicability of the compass.

Please refer to the sixth preferred embodiment shown in FIGS. 32 to 34, which is similar in structure to the compass of the fourth preferred embodiment. The difference is that the sixth preferred embodiment does not have the two The movable device 10E is connected to the rod 14C, and the movable device 10E is an elastic C-shaped clamping structure. Further, the movable device 10E can also be changed from a C shape to a geometric shape such as a triangle, a quadrilateral or a polygon with a gap, and each of the movable device 10E The connecting portion 12E is provided with a clamping portion 16E. Each clamping portion 16E has two clamping-shaped cylindrical protrusions. The top ends of the two legs 20E are pivotally connected to the two connecting portions of the movable device 10E. The clamping portion 16E of 12E is interlockingly connected, each leg 20E is provided with a set post 23E at the top end, and the sleeve post 23E of each leg 20E is sleeved into two cylindrical protrusions of each clamping portion 16E In between, it is combined with the clamping portion 16E of one of the connecting portions 12E of the movable device 10E; further, the limiting portion 33E of the operating member 30E is provided with a clamping structure, which is a polygonal shape Structure, the limiting hole 42E is provided on the top of the holding portion 45E and has an inner peripheral surface that matches the shape of the engaging structure of the operating member 30E, so that the limiting portion 33E of the operating member 30E can selectively interact with the The limit hole 42E of the outer cover 40E is engaged with each other.

When the compass of the sixth preferred embodiment of the present invention is used, when the two legs 20E are closed or opened at a small angle as shown in FIG. 35, the limiting portion 33E of the operating member 30E and the limiting hole of the outer cover 40E 42E is a structure that engages with each other, so that the operating member 30E is limited to the limit hole 42E of the outer cover 40E without deflection relative to the outer cover 40E, allowing the user to hold the operating member 30E performs a fixed circle drawing to facilitate drawing a circle or arc with a small radius; further, as shown in Figure 36, the user can also open the two legs 20E to a large angle, the movable device 10E will drive the operating member 30E Move upward relative to the outer cover 40E, so that the engagement structure of the limiting portion 33E of the operating member 30E is separated from the limiting hole 42E of the outer cover 40E without being engaged with each other, so that the operating member 30E can be relative to the outer cover 40E Tilt and swing freely, so that the user can use the compass of the present invention to draw a circle with an oblique pendulum by holding the operating member 30E, so as to draw a circle or arc with a larger radius, and provide users with diversified operation methods , Effectively improve the practicability of compasses.

Please refer to the seventh preferred embodiment shown in FIG. 37, which is similar in structure to the compass of the fifth preferred embodiment, but the difference lies in the limitation of the operating element 30F in the seventh preferred embodiment The engaging structure of the portion 33F has a plurality of annularly arranged convex teeth, and the limiting hole 42F of the outer cover 40F has a tooth profile that matches with the engaging structure of the limiting portion 33F, so that the operating member 30F can pass The restricting portion 33F is engaged with or disengaged from the restricting hole 42F, forming a fixed or swinging type relative to the outer cover 40F, so that the user can draw a circle or obliquely according to needs. The circle provides users with different and diversified operation methods, which effectively improves the practicability of compasses.

With the above technical means, the compass of the present invention can be selectively moved by the operating member 30, 30A, 30B, 30C, 30D, 30E, 30F relative to the outer cover 40, 40A, 40B, 40C, 40D, 40E, 40F. Limit, freely select the swing operation range to draw a circle, provide users with free choice of fixed or inclined different rotation modes to operate the compass, draw large or small circles quickly and easily, greatly improving the operation of the compass The diversification and practicability of the above; Moreover, the tilted pendulum circle drawing mode can be achieved through the opening of the two legs 20, 20A, 20B, 20C, 20D, 20E, so that the pendulum operation angle can be drawn with the circle /The radius of the arc is automatically adjusted, allowing users to easily draw circles/arcs of different radii according to their needs; further, through the movable device 10, 10B, 10C, 10D, 10E and the two legs 20, 20B, The structure of the symmetrical connection between 20C, 20D, and 20E and the linear movement of the movable device 10, 10B, 10C, 10D, and 10E, for example, through two connecting rods 14, 14B, 14C, 14C', 14D, or activities device 10A through a C-shaped clamp structure, 10E, so that the legs 20,20A, 20B, 20C, 20D, 20E may be precisely synchronized with respect to a compass open or closed, so that the first axis C of the present _{invention. 1} When in use, it can be rotated along its center of gravity, providing a stable rotation effect; further, through the eccentric setting of the operating parts 30, 30A, 30B, the arm of the compass rotation can be increased to increase the torque value of the rotation, so that The user can perform circle drawing operations more smoothly, and can also increase the effect of drawing large or small circles quickly and easily; preferably, through the limit sections 443C, 443D of the two half shells 44C, 44D The spatial relationship between the formed limit space and the two legs 20C, 20D can prevent the user from damaging the compass due to mistakes or carelessness.

The first axis C ₁ and the second axis C _{2 in the} present invention refer to the movable devices 10, 10A, 10B, 10C, 10D, 10E and the operating elements 30, 30A, 30B, 30C, 30D, 30E, 30F, respectively It has a virtual reference line to define the relative positional relationship of related components, and does not restrict the movable device 10, 10A, 10B, 10C, 10D, 10E and the operating member 30, 30A, 30B, 30C, 30D, 30E, The overall shape of 30F itself is completely symmetrical. For example, in the third embodiment, in order to strengthen the legs 20B can be synchronized to open and close, connecting the two active portions (connecting rod 14B) based device 10B with respect to the first axis C ₁ symmetrically arranged, and the movable device 10B with in the upper half of the operating member 30B is not combined with the first axis C ₁ symmetrical.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Anyone with ordinary knowledge in the relevant technical field can use the present invention without departing from the scope of the technical solution proposed by the present invention. The equivalent embodiments with partial changes or modifications of the technical content disclosed in the invention without departing from the technical solution content of the present invention still fall within the scope of the technical solution of the present invention.

10, 10A, 10B, 10C, 10D, 10E: movable device

11, 11D: Joint

12, 12A, 12D, 12E: connecting part

13,13C,13D: half body

131,131C,131C’,131D: groove

132,132C,132C’,132D: convex post

14,14B,14C,14C’,14D: connecting rod

141C’: The first pivot end

142C’: The second pivot end

143C’: Groove

15, 15B, 15C, 15D, 15E: guide part

16A, 16E: clamping part

20, 20A, 20B, 20 C, 20D, 20E: feet

21, 21C, 21D: pivot

22, 22D: Coaxial part

23E: Set column

24B: The first mosaic structure

30, 30A, 30B, 30C, 30D, 30E, 30F: operating parts

31, 31C, 31D: binding end

32, 32B, 32C, 32D: operating side

33, 33A, 33B, 33C, 33D, 33E, 33F: limit part

33C’: Locking structure

34B: Second mosaic structure

40, 40A, 40B, 40C, 40D, 40E, 40F: outer cover

41, 41D: fixed parts

42,42A,42B,42C,42C’,42D,42E,42F: limit hole

43, 43B, 43C, 43D: positioning part

44, 44A, 44B, 44C, 44D: half shell

441C, 441D: Combination hole

442C, 442D: binding column

443C, 443D: limit segment

45B, 45C, 45E: grip

50B: Cover

51B: The third mosaic structure

L ₁ : first length

L ₂ : second length

C ₁ : first axis

C ₂ : second axis

P ₁ : The first extension line

P ₂ : Second extension line

D: Maximum displacement

E: eccentric spacing

S: straight line distance

Fig. 1 is a perspective view of the first preferred embodiment of the compass of the present invention. Figure 2 is a perspective exploded view of the first preferred embodiment of the compass of the present invention. Figure 3 is a further perspective exploded view of the first preferred embodiment of the compass of the present invention. Fig. 4 is a partial sectional side view of the first preferred embodiment of the compass of the present invention. Fig. 5 is a partially enlarged perspective exploded view of the first preferred embodiment of the compass of the present invention. Fig. 6 is a partial cross-sectional side view of the first preferred embodiment of the compass of the present invention in use. Fig. 7 is another partial cross-sectional side view of the first preferred embodiment of the compass of the present invention in use. Fig. 8 is a perspective view of a second preferred embodiment of a compass of the present invention. Fig. 9 is a perspective exploded view of the second preferred embodiment of the compass of the present invention. Figure 10 is a partial cross-sectional side view of a second preferred embodiment of the compass of the present invention. Fig. 11 is a partial cross-sectional side view of the second preferred embodiment of the compass of the present invention in use. Fig. 12 is another partial cross-sectional side view of the second preferred embodiment of the compass of the present invention in use. Figure 13 is a perspective view of the third preferred embodiment of the compass of the present invention. Fig. 14 is an exploded perspective view of the third preferred embodiment of the compass of the present invention. Fig. 15 is a partial sectional side view of the third preferred embodiment of the compass of the present invention. Figure 16 is a partial cross-sectional side view of the third preferred embodiment of the compass of the present invention in use. Fig. 17 is another partial cross-sectional side view of the third preferred embodiment of the compass of the present invention in use. Fig. 18 is a perspective view of a fourth preferred embodiment of a compass of the present invention. Fig. 19 is a perspective exploded view of the fourth preferred embodiment of the compass of the present invention. Fig. 20 is a side view of the appearance of the fourth preferred embodiment of the compass of the present invention. Fig. 21 is a partial cross-sectional side view of a fourth preferred embodiment of the compass of the present invention. Fig. 22 is a partial cross-sectional side view of the fourth preferred embodiment of the compass of the present invention in use. Figure 23 is another partial cross-sectional side view of the fourth preferred embodiment of the compass of the present invention in use. Fig. 24 is a partial schematic view of the fourth preferred embodiment of the compass of the present invention when in use. 25 is an exploded perspective view of another aspect of the fourth preferred embodiment of the compass of the present invention. 25A is an enlarged perspective view of the connecting rod of another aspect of the fourth preferred embodiment of the compass of the present invention. 26 is a cross-sectional side view of another aspect of the fourth preferred embodiment of the compass of the present invention. Fig. 27 is a perspective view of a fifth preferred embodiment of a compass of the present invention. Fig. 28 is an exploded perspective view of a fifth preferred embodiment of the compass of the present invention. Figure 29 is a cross-sectional side view of a fifth preferred embodiment of the compass of the present invention. Figure 30 is a partial cross-sectional side view of the fifth preferred embodiment of the compass of the present invention in use. Figure 31 is another partial cross-sectional side view of the fifth preferred embodiment of the compass of the present invention in use. Fig. 32 is a perspective view of a sixth preferred embodiment of a compass of the present invention. Figure 33 is a perspective exploded view of a sixth preferred embodiment of the compass of the present invention. Figure 34 is a cross-sectional side view of a sixth preferred embodiment of the compass of the present invention. 35 is a cross-sectional side view of the sixth preferred embodiment of the compass of the present invention in use. Fig. 36 is another cross-sectional side view of the sixth preferred embodiment of the compass of the present invention in use. Fig. 37 is a partially enlarged perspective view of a seventh preferred embodiment of a compass of the present invention.

10: Activity device

12: Connection part

14: connecting rod

20: feet

30: operating parts

32: Operation side

40: Outer cover

41: fixed parts

44: half shell

Claims (20)

A compass, which includes: an outer cover with a limiting hole through the top; a movable device with a first axis, the movable device is provided with a joint part and two joint parts, the joint part is located in the movable part On the top of the device, the two connecting parts are respectively located on both sides of the first axis, the movable device can move up and down relative to the outer cover; two legs are relatively open and close to the outer cover, and can be respectively Rotatably combined with the two connecting parts of the movable device; and an operating member, which has a length direction, the operating member is provided with a coupling end and an operating end that are spaced apart along the length direction, and at the coupling end A limit part is provided between the operating end and the operating end is located outside the limit hole of the outer cover. The coupling end of the operating member is rotatably coupled with the coupling part of the movable device, so that the The operating member can swing with the joint end as a fulcrum, and by opening and closing the two legs, the movable device is linked to drive the operating member to move up and down relative to the outer cover along the length direction. The compass according to claim 1, wherein the two connecting parts of the movable device are symmetrically arranged with respect to the first axis. The compass according to claim 1, wherein the movable device is provided with a guiding structure toward the outside, and the outer cover is provided with a positioning structure corresponding to the inner side, so that when the movable device moves up and down relative to the outer cover, the guide structure can Move along the positioning structure. The compass according to claim 1, wherein the limiting portion of the operating member is a structure in which the outer diameter gradually increases from the coupling end to the operating end. The compass according to claim 1, wherein the outer cover is provided with a grip portion extending along the length direction of the operating member at the top, the grip portion can restrict the swing state of the operating member relative to the outer cover, the limiting hole It is formed on the holding part, and the operating end of the operating member is located outside the holding part. The compass according to claim 5, wherein the limiting portion of the operating member has a first length, the holding portion has a second length, the movable device defines a maximum displacement, and the first length is not less than the The sum of the second length and the maximum displacement. The compass according to claim 5, wherein there is a gap between the limiting portion of the operating member and the inner wall of the holding portion, and the gap is more than 0.05 mm. The compass according to claim 1, wherein the outer surface of the limiting portion of the operating member is further provided with an engaging structure, and the limiting hole of the outer cover has an inner peripheral surface that matches the shape of the engaging structure of the operating member , So that the limiting portion of the operating member can be selectively engaged with the limiting hole of the outer cover. The compass according to claim 8, wherein the outer surface of the engaging structure of the limiting part is selected from at least one of a triangle, a polygon, a convex tooth, and a groove. The compass according to claim 1, wherein the outer cover has two combined half-shells, and each half-shell of the outer cover is provided with a limit section on the lower half, and the two limit sections can form a limit The space is used to limit the angle at which the two legs open outward relative to the outer cover. The compass according to claim 1, wherein the two connecting parts of the movable device can swing closer to/away from the first axis. The compass according to claim 11, wherein the two connecting parts of the movable device further include a swingable connecting rod, and the part of each connecting rod away from the operating member is a swinging end, and the top of each leg It is pivotally combined with the swing end of one of the connecting rods. The compass according to claim 12, wherein each connecting rod of the movable device is provided with a first pivot end and a second pivot end that are far apart, and the two second pivot ends are respectively provided with a groove, The two second pivoting ends are respectively elastically deformable and pivotally connected to the tops of the two supporting legs. The compass according to claim 11, wherein the movable device is an elastic structure, and each connecting portion of the movable device away from the operating member is a swing end, and the top ends of the two legs are respectively connected to the two The swing ends of the parts are rotatably coupled. The compass according to claim 1, further comprising a cover, which can be selectively combined with the bottom of the two legs and the operating end of the operating member. The compass according to any one of claims 1 to 15, wherein the joint end of the operating member has a second axis parallel to the longitudinal direction of the operating member, and there is a line between the second axis and the first axis Eccentric spacing. The compass according to claim 16, wherein the coupling portion of the movable device is offset from the first axis, is located on the second axis linearly opposite to the limiting hole of the outer cover, and is coupled to the end of the operating member Combine. The compass according to claim 16, wherein the top of each leg is provided with a pivot portion and a coaxial portion, and the pivot portion is relatively located outside the coaxial portion and connected to one of the connecting portions of the movable device The coaxial parts of the two legs are arranged to be combined in a pivotal manner so that the center of each coaxial part is positioned on a first extension line, the first extension line is orthogonal to the first axis, and one of the The pivotal portion of the leg is located on the same side as the second axis relative to the first axis and is defined as an eccentric side leg, and between the pivotal portion and the coaxial portion to which the eccentric side leg belongs It has a straight line distance, and the eccentric distance is less than or equal to the straight line distance. The compass according to claim 17, wherein the two legs are a stitch and a pen, respectively, and the connecting end of the operating member is connected with the connecting portion corresponding to the pen. The compass according to claim 1, wherein the top of each leg is provided with a pivot portion and a coaxial portion, the pivot portion is relatively located outside the coaxial portion and is opposite to one of the connecting portions of the movable device The joint is pivoted, and the coaxial parts of the two legs are superimposed and combined.

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