JPH058626U - Control pedal turnover device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a turnover device for an operating pedal that uses a torsion coil spring, the work of assembling the torsion coil spring is facilitated, and the spring force of the coil body is maintained regardless of variations in the dimensions of each part. Make it work well. An engaging arm 44 located in a plane perpendicular to the center line of the coil body 32 parallel to the rotating shaft 16 is provided in the engaging portion 36, and an engaging pin 40 parallel to the rotating shaft 16 is provided. The clamp block 42 is arranged so as to be rotatable around and the locking pin 40 is immovable in the axial direction, and the engaging arm 44 is fitted into the engaging groove 46 of the clamp block 42, and the spring force of the coil body 32 is applied. While engaging in the pressed state, the locking portion 34 is parallel to the rotating shaft 16
8 was inserted into the through hole 68 and locked.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a turnover device for an operation pedal, and more particularly, to a pedal bracket and an operation device. Improving urging means arranged between the work pedal and urging the operation pedal Is.

[0002]

[Prior art]

  For example, an automobile clutch pedal is rotatably supported by a pedal bracket. However, when depressing this to disengage the clutch, a relatively large pedal force is required. I need. Therefore, in such an operation pedal as the clutch pedal, At the beginning of the depression, the operation pedal is urged toward the original position, but After turning by a constant angle, urging in the stepping direction It is usually equipped with a turnover device to assist the operation.

[0003]   As such a turnover device, it is lightweight without requiring a large space. A turnover device using a torsion coil spring that can be constructed is proposed. (A) Coil body wound in a coil shape and its coil A pair of wires that extend from both ends of the main body to the other end side through the outside of the coil main body. A first locking part and a second locking part, and the first locking part and the second locking part are Due to the spring force of the coil body, they contact each other around the center line of the coil body. With the pedal bracket fixed in position and One of the operation pedals mounted on the pedal bracket so as to be rotatable about one rotation axis. One side and the other side are locked so as to be rotatable relative to each other about an axis parallel to one rotation axis. This ensures that the center line of the coil body is placed in a posture that is parallel to the one rotation axis. A torsion coil spring is provided, and the operation pedal is locked from the original position to the first lock. Part and the second locking part are locked to the pedal bracket and the operation pedal Operation to the turnover point where the locking point of the Until it is made, the operation pedal is urged to rotate toward its original position. When the operation pedal is depressed beyond the above turnover point, the operation pedal There is a type that urges so that it rotates in the stepping direction. Actual public Sho 62 The device disclosed in JP-A-228283 is an example thereof, and a pair of first locking portions are provided. And the second locking portion is rotated by one rotation shaft in a state in which the second locking portion is urged in a direction in which the second locking portion is separated from each other Via a pair of bottomed cylindrical bushes that are arranged parallel to It is designed to be attached to the dull bracket side. A pair of parallel to one rotation axis The bottomed cylindrical bush is used for the first locking portion and the second locking portion, respectively. The torsion coil spring can be kept in a stable posture by supporting it over a predetermined length range. And the ends of the first locking portion and the second locking portion are respectively brought into contact with the bottom portion. To prevent the torsion coil spring from rattling in the length direction, etc. Because of.

[0004]

[Problems to be solved by the device]

  However, the turnover device as described above includes a pair of first locking portion and second locking portion. The parts are facing each other, so the assembly is very troublesome, and The first locking portion and the second locking portion of these are arranged in the longitudinal direction of the coil body with respect to the bush. Since both ends are fitted into the bottom of the bush and are regulated, Due to dimensional error and misalignment of each part such as variation in length of coil spring The sliding resistance due to friction with the bushing increases, and the spring force of the coil body works well. I couldn't do it.

[0005]   The present invention was made in the background of the above circumstances, and the purpose is to: Assembling the torsion coil spring is easy, and the dimensions of each part vary. It is to ensure that the spring force of the coil body can be effectively applied regardless of the time.

[0006]

[Means for Solving the Problems]

  In order to achieve such an object, the gist of the present invention is that (a) the twist. A coil spring is provided, and the operation pedal is moved from the original position to the first locking portion and A pair of locking points at which the second locking portion is locked to the pedal bracket and the operation pedal And the one rotating shaft are depressed to a turnover point which is located on a substantially straight line. Until then, the operation pedal is urged to rotate toward the original position. When the dull is operated beyond the turnover point, the operation pedal is depressed. A turnover device for urging so as to rotate in a direction; The first locking portion is an engaging arm located in a plane perpendicular to the center line of the coil body. And (b) one of the pedal bracket and the operation pedal. On one side, a locking member provided with an engaging groove capable of engaging with the engaging arm is It is rotatable about a locking pin that is erected parallel to the moving shaft, and (C) The engaging arm is immovably disposed, and is based on the spring force of the coil body. Is engaged with the engaging groove of the locking member, and (d) the second locking portion is It is arranged on the other side of the pedal bracket and the operation pedal in parallel with the one rotation shaft. The bush is inserted and locked in the through hole of the bush.

[0007]   In the turnover device, preferably, the locking pin is inserted through the coil. Is arranged on the locking pin so that both ends of the coil are Alternatively, the locking pin is engaged with both the member provided upright and the locking member. This allows the operation pedal to reach the vicinity of the turnover point from the original position. Until the operating pedal is rotated in the direction of depression. However, if it exceeds the turnover point, it will be in a natural state and It is configured to have a torsion coil spring for reducing the initial pedaling force at which the biasing force becomes zero.

[0008]

[Effect of action and device]

  In the above-mentioned operation pedal turnover device, the coil body parallel to one rotation axis The engaging arm of the first engaging portion located in a plane perpendicular to the center line of the Arranged so as to be rotatable around the locking pin parallel to the shaft and immovable in the axial direction of the locking pin Is engaged with the engaging groove of the locked member based on the spring force of the coil body. On the other hand, the second locking portion is inserted into the through hole of the bush arranged in parallel with the one rotation shaft. It is inserted and locked. Therefore, when assembling the torsion coil spring, For example, the torsion coil spring is moved in a direction parallel to one rotation axis to move the second locking portion. Insert into the through hole of the bush and lock it, then lock the engaging arm of the first locking part. It moves in the plane perpendicular to one rotation axis against the spring force of the main body and the locking pin is moved in advance. By engaging the engaging groove of the locking member attached to the Assembly of the pulling itself can be done very easily. Also, the first locking portion is an engaging arm. The movement of the torsion coil spring in the longitudinal direction is restricted by the engagement of the locking member with the locking member. While the second locking part is locked in the bush through-hole, Direction, that is, there is no restriction in the length direction of the torsion coil spring , The torsion coil spring is exclusively formed by the engagement between the engaging arm of the first engaging portion and the engaging member. Thus, the positioning in the length direction is performed. Therefore, the torsion coil spring Even if there is dimensional error or misalignment of each part such as variation in length dimension of The engagement state between the engagement groove and the engagement arm and the engagement state between the bush and the second engagement portion are good. The variation is absorbed while maintaining good condition, and there is no increase in sliding resistance. In both cases, the torsion coil spring is held in a stable posture, and the spring force of the coil body is It works well.

[0009]   Further, in the case of being configured with the above-mentioned torsion coil spring for reducing the initial pedaling force, , The locking member is urged by the torsion coil spring for reducing the initial pedaling force Only operate the operation pedal until the pedal reaches the turnover point from its original position. Since the urging force is applied so as to rotate in the closing direction, that portion is The torsion coil spring subtracts from the urging force in the direction opposite to the Incorporation resistance is reduced. In this case, the torsion coil spring for reducing the initial pedal force is Since the locking member is arranged on a locking pin to which the locking member is attached, a tension coil spring is provided. The device is simple and compact compared to the case where the gear is directly hooked on the operation pedal. Has the advantage of being configured.

[0010]

【Example】

  An embodiment of the present invention will be described below in detail with reference to the drawings.

[0011]   FIG. 3 and FIG. 4 are diagrams showing a class including a turnover device 10 according to an embodiment of the present invention. It is a left side view and a front view of a touch pedal operating device. In front of the driver's seat inside the vehicle The pedal bracket 12, which is fixedly installed, is provided so as to be inserted substantially horizontally. A rotating shaft 16 is supported rotatably around the bolt 14 and the rotating shaft 16 The clutch pedal 18 as an operation pedal integrally attached to the pedal is depressed. It is possible. The pedal bracket 12 has a base end of the clutch pedal 18. With the pedal bracket 12 and the side surrounded, the stopper bracket 20 It is fixed integrally. A stopper 22 is attached to the stopper bracket 20. On the other hand, the contact member 24 is integrally fixed to the clutch pedal 18. When the clutch pedal 18 rotates counterclockwise in FIG. 3, the contact member 2 When the clutch pedal 4 comes into contact with the stopper 22, the clutch pedal 18 is further rotated to the left. Rotation is prevented and its original position is regulated. In Figure 3 The clutch pedal 18 shown by the solid line is in a state of being held in the original position. Then, from this original position, the clutch pedal 18 is depressed in the clockwise direction in the figure. When operated, the engagement state of the clutch device (not shown) is released. Has become. The clockwise rotation of the clutch pedal 18 causes the pedal bracket 12 to rotate. It is designed to be regulated by a stroke stopper 26 provided at the bottom. . The state where the clutch pedal 18 is fully depressed is shown in Fig. 3. Is indicated by a chain double-dashed line.

A connecting member 28 is integrally fixed to the rotating shaft 16 adjacent to the clutch pedal 18, and rotates around the shaft center O _{1 of the} bolt 14 as the clutch pedal 18 rotates. It is like this. The turnover device 10 of the present embodiment is composed of a torsion coil spring 30 and the like arranged between the connecting member 28 and the stopper bracket 20. The torsion coil spring 30 is provided with a pair of locking portions 34 and 36 extending from both ends of the coil main body 32 to the other end side through the outside of the coil main body 32, and the center line of the coil main body 32 has the above-mentioned rotation. While the locking portion 34 is locked to the connecting member 28 and further to the clutch pedal 18, and the locking portion 36 is locked to the stopper bracket 20 and further to the pedal bracket 12 in a posture parallel to the moving shaft 16. There is. Further, the torsion coil spring 30 is inserted in a state in which the coil body 32 is twisted in a direction in which the winding is tightened, and the spring force of the coil body 32 causes the pair of locking portions 34 and 36 to move. The shafts 32 are urged in directions away from each other around the axis O ₄ .

As shown in FIG. 1 which is a cross-sectional view taken along the line II of FIG. 3, a bush 38 made of an oil-containing resin is arranged in parallel with the rotary shaft 16 at the tip end side of the connecting member 28, and the bush is formed. The end of the engaging portion 34 is inserted into the through hole 68 of the engaging hole 38, and the engaging portion 34 is rotatable about the axis O _{2 of the} bush 38, in other words, about the axis parallel to the rotating shaft 16. Held in. Further, the end of the locking portion 34 is located at the central portion in the length direction of the coil body 32, and the locking portion 34 is locked to the connecting member 28 at the central portion. On the other hand, a stopper pin 40 having a small-diameter portion 64 and a large-diameter portion 66 is erected on the stopper bracket 20 in parallel with the rotating shaft 16, and a clamp block 42 made of synthetic resin is provided on the small-diameter portion 64. By being fitted and fitted with the E-shaped retaining ring 60, it is arranged so as to be rotatable around the locking pin 40 and immovable in the axial direction of the locking pin 40. The engagement arm 44 provided on the tip end side of the locking portion 36 is engaged with the clamp block 42 while being pressed against the clamp block 42 side by the spring force of the coil body 32. The locking portion 36 is locked rotatably around the axis O ₃ of the locking pin 40. The engaging arm 44 is located in a plane perpendicular to the center line of the coil body 32 at the central portion in the lengthwise direction of the coil body 32 and extends toward the outer peripheral side. It is composed by. The engagement arm 44 is fitted in the engagement groove 46 of the clamp block 42, and thus is integrally held by the elastic force of the clamp block 42. As can be seen from FIG. 1, the clamp block 42 and the connecting member 28 are arranged at positions that substantially coincide with each other in the axial direction of the rotating shaft 16. Although the clamp block 42 is made of a wear-resistant resin such as polyacetal, an oil-impregnated resin may be used as in the bush 38. In this embodiment, the locking portion 36 corresponds to the first locking portion, the locking portion 34 corresponds to the second locking portion, and the clamp block 42 corresponds to the locking member. The axes O ₂ and O ₃ correspond to a pair of locking points.

The torsion coil spring 30 expands the angle O ₂ —O ₄ —O ₃ when the shaft center O ₂ —O ₄ —O ₃ is connected so that O ₂ —O ₃ is separated. In order to apply the urging force, the connecting member 28 has a turnover point when the axial center O ₂ of the bush 38 is located on the line connecting the axial center O ₁ of the bolt 14 and the axial center O ₃ of the locking pin 40. As a result, the urging direction is switched to the left or the right and urged. In other words, depending on the size of the rotation angle of the clutch pedal 18 when it is depressed, the axis O ₂ is located on the line connecting the axes O ₁ and O ₃ as described above. The urging direction is switched at an angle, and the basic function of the turnover device 10 is obtained.

[0015]   The clamp block 42, as shown in FIG. The outer shape of the rectangular parallelepiped is formed and integrally molded from a synthetic resin material having a predetermined elasticity. It is a thing. The clamp block 42 is provided with a mounting hole 48 in a direction perpendicular to the engaging groove 46. Is provided, and can be rotated to the small diameter portion 64 of the locking pin 40 through the mounting hole 48. Noh fits. The engaging groove 46 has a slit 50 along its axial direction. The engaging arm 44 is fitted through the slit 50. It has become so. The inner diameter of the engaging groove 46 is the wire diameter of the torsion coil spring 30. Is smaller than the above, and a predetermined gripping force can be obtained when the engagement arm 44 is fitted. In addition, the groove width of the slit 50 does not allow the engaging arm 44 It is predetermined in size so that it can be fitted. In addition, it is partially curved On the lower surface side in FIG. 3 thus formed, a concave groove continuing from the engaging groove 46 is formed. It is formed so as to follow the hook-shaped shape of.

On the other hand, a notch 52 is provided on the back surface on the side opposite to the engaging groove 46, and an initial treading force arranged in a state of being wound around the large diameter portion 66 of the locking pin 40. One end 56 of the mitigating torsion coil spring 54 is adapted to be engaged. The other end 58 of the torsion coil spring 54 is locked in a locking hole 62 provided in the stopper bracket 20 so as not to move relative to it, as can be seen from FIG. The torsion coil spring 54 is inserted while being twisted in the direction in which the coil is wound, and the clamp block 42 is rotated to the left of the locking pin 40 in FIG. By urging the connecting member 28 to rotate, the connecting member 28 is urged to rotate clockwise in FIG. However, this urging force is smaller than the urging force of the torsion coil spring 30. Further, the torsion coil spring 54 is provided from the initial state in which the clutch pedal 18 is held at the original position until the axial center O ₁ , the axial center O ₂ , and the axial center O ₃ are in a straight line. As described above, the clamp block 42 is urged to rotate counterclockwise. In other words, the connecting member 28 rotates in accordance with the rotation of the clutch pedal 18, and the vicinity of the turnover point where the axis O ₁ , the axis O ₂ , and the axis O ₃ are located on a straight line, that is, the torsion coil spring 30. When the clutch pedal 18 is depressed to a position near the position where the biasing rotation direction by the urging force of the clutch pedal 18 is switched, the torsion coil spring 54 is in a natural state, and when the clutch pedal 18 is further depressed, the one end portion 56 is released. After being separated from the notch 52, no biasing force can be applied thereafter. Therefore, the biasing force of the torsion coil spring 30 is maintained while the clutch pedal 18 is depressed from the original position to the vicinity of the turnover point where the shaft center O ₁ , the shaft center O ₂ , and the shaft center O ₃ are located on a straight line. The urging force of the torsion coil spring 54 is subtracted from this.

[0017]   Assembling the turnover device 10 of this embodiment to the clutch pedal operating device is an example. For example, the procedure is as follows. First of all, the torsion coil spring for reducing the initial pedaling force in advance. The other end 58 of the locking pin 40 is fitted into the large diameter portion 66 of the locking pin 40, and the other end 58 is Lock the clutch pedal 18 in the locking hole 62 and fully Put it in the state where you stepped into the trooke. Next, attach the clamp block 42 to the notch 5 2 so that one end 56 of the torsion coil spring 54 is placed on The small diameter portion 64 is fitted and the E-shaped retaining ring 60 is fitted. And the torsion coil sp Insert the locking portion 34 of the ring 30 into the through hole 68 of the bush 38, and in that state The distance between the pair of locking portions 34 and 36 is shortened so that the winding of the coil body 32 is tightened. While applying torsional deformation, the engagement arm 44 of the locking portion 36 is engaged with the clamp block 42. Fit in the groove 46. Finally, return the clutch pedal 18 to its original position and The attachment is completed. Here, the locking portion 34 penetrates the bush 38 in parallel with the rotating shaft 16. The engaging arm 44 of the engaging portion 36 is inserted into the through hole 68 and is engaged with the engaging portion 44. The locking groove 46 of the clamp block 42 is rotated by rotating in a plane perpendicular to the rotating shaft 16. Since it can be engaged with the conventional equipment, Without giving a great amount of deformation to the torsion coil spring 30 as in the case of Assembling work can be done easily and smoothly.

[0018]   Next, the operation of the clutch pedal operating device configured as described above will be described.

Until the rotation angle at which the clutch pedal 18 is depressed from the original position and rotated in the depression direction reaches the fixed angle, the axial center O ₂ of the bush 38 is the axial center of the bolt 14. O ₁ and the axis O ₃ axis of said torsion coil spring 30 than the line connecting O ₄ side of the locking pin 40, i.e. for to connecting member 28 to the left around the side in FIG. 3, the torsion coil spring While the connecting member 28 is biased counterclockwise by 30, the connecting block 28 is biased clockwise by the clamp pedal 42 being biased counterclockwise by the initial stepping force reducing torsion coil spring 54. Here, since the urging force of the torsion coil spring 30 is larger than the urging force of the initial stepping force reducing torsion coil spring 54, the urging force of the torsion coil spring 54 is subtracted from the urging force of the torsion coil spring 30. Due to the force, the turnover device 10 exerts a moment on the clutch pedal 18 in a direction opposite to the stepping direction of the clutch pedal 18, that is, a direction toward the original position around the rotation shaft 16.

Next, when the clutch pedal 18 is rotated from the original position by the predetermined angle, the shaft center O ₂ is positioned on the line connecting the shaft centers O ₁ and O _3. . At the position of this turnover point, the torsion coil spring 30 does not urge the connecting member 28 in either direction, and the urging force of the initial stepping force reducing torsion coil spring 54 becomes substantially zero, so that it acts on the clutch pedal 18. The moment to be made becomes zero. The magnitude of the stepping force at this time is exactly equal to the magnitude of the resistance force in the releasing operation of the clutch device.

When the amount of rotation of the clutch pedal 18 exceeds the certain angle by further depressing, the shaft center O ₂ is more than the shaft center O ₄ from the line connecting the shaft centers O ₁ and O _3. 3, that is, to the right side in FIG. 3 for the connecting member 28, the connecting member 28 is biased clockwise by the torsion coil spring 30. Therefore, the direction of the moment applied to the clutch pedal 18 by the turnover device 10 is the stepping direction of the clutch pedal 18, which assists the stepping operation of the clutch pedal 18 and is required for the stepping operation. The pedal effort is reduced. FIG. 5 shows a state in the vicinity of the turnover device 10 when the clutch pedal 18 is rotated to a certain angle beyond the turnover point. As is apparent from the figure, in this state, the initial stepping force reducing torsion coil spring 54 is in a natural state, and the one end portion 56 is separated from the notch 52 of the clamp block 42 and urges the clamp block 42 at all. Absent.

[0022]   As described above, in the turnover device 10 of the present embodiment, the torsion coil is The locking portion 34 of the ill spring 30 is a bush 38 arranged in parallel with the rotating shaft 16. The engaging portion 36 is inserted into the through hole 68 of the The engaging arm 44 located in a plane perpendicular to the center line of the coil body 32 is a locking pin. 40, the spring of the coil body 32 is inserted into the engaging groove 46 of the clamp block 42. It is locked to the stopper bracket 20 while being pressed by force and engaged. Therefore, the assembling work of the torsion coil spring 30 is performed by the procedure described above. It can be done very easily compared to the traditional case. The first locking portion 36 is an engaging arm. The length direction of the torsion coil spring 30 by the engagement of the clamp block 42 with the clamp block 42. The movement in the direction is restricted, while the movement is restricted in the through hole 68 of the bush 38. Since the second locking portion 34 that is not subject to any restriction in the length direction described above, the torsion coil The spring 30 exclusively includes the engaging arm 44 of the first locking portion 36 and the clamp block 42. Positioning in the longitudinal direction is achieved by engagement with. Therefore, the twist carp Variation in the length of the spring 30 itself, and parallel to the rotating shaft 16. Connecting member 28 and locking pin 40 or locking pin 40 and engaging groove 46 in different directions When there is dimensional error or misalignment of each part such as relative misalignment of Even if the engaging groove 46 is engaged with the engaging arm 44, and the through hole 68 and the locking portion 34 are engaged. Increases sliding resistance while maintaining good engagement with And the torsion coil spring 30 is held in a stable posture. As a result, the coil body 32 can effectively exert its spring force.

[0023]   In addition, the pair of locking portions 34 and 36 is a central portion in the length direction of the coil body 32. Since it is locked to the connecting member 28 and the stopper bracket 20 in a minute, The coil body 32 has a pair of locking portions 34, 36 spaced apart from each other around the center line thereof. Even when the spring force is applied to maintain the It is possible to obtain a good rotation state of the locking portions 34 and 36 without causing kinking or the like. Be done. As a result, wear on the sliding parts is reduced and the turnover device 10 is durable. The sex is improved.

[0024]   In addition, in this embodiment, a torsion coil spring 54 for reducing the initial pedaling force is provided. During operation of the clutch pedal 18 to the vicinity of the turnover point. The coil spring 54 causes the clutch pedal 18 to rotate in the stepping direction. Since the urging force is applied to the torsion coil spring 3, 0 is subtracted from the urging force in the direction opposite to the stepping direction and the clutch pedal 18 is released. Before reaching the turnover point, it acts as a whole toward the original position. While the urging force is reduced and the pedaling resistance is reduced, Sufficient assisting force will be obtained after exceeding. In this case, the initial The clamp block 42 is attached to the pedaling force reducing torsion coil spring 54. Since it is arranged on the locking pin 40, a tension coil spring etc. is directly hooked on the operation pedal. There is an advantage that the device is configured to be simple and compact as compared with the case of stopping.

[0025]   The embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to this. Can also be carried out.

[0026]   For example, in the above-described embodiment, the locking portion 36 of the torsion coil spring 30 is used. Clamp block 4 provided with engaging arm 44 on its side and disposed on locking pin 40 2 was engaged, but instead of this, a similar engagement to the locking portion 34. A clutch provided with a coupling arm and rotatably disposed at one end on the connecting member 28. It may be configured to engage the pump block.

[0027]   Further, the clamp block 42 as the locking member in the above-mentioned embodiment is Even if the spring force of the coil body 32 is not provided by the groove 46, However, for example, a semi-circular cross section The engaging arm by the spring force of the coil body 32 acting. Other locking members such that 44 can be engaged may be used.

Further, in the above-described embodiment, the shaft center O ₂ of the bush 38 is located between the shaft center O _{1 of the} rotating shaft 16 and the shaft center O ₃ of the locking pin 40, and the shaft center O 2 _{Although 2} and the shaft center O ₃ are biased so as to be separated from each other, the shaft center O ₁ is positioned between the shaft center O ₂ and the shaft center O _3, and a pair of locking portions, that is, the shaft centers. The torsion coil spring may be arranged in a state in which O ₂ and the axis O ₃ are biased toward each other by the spring force of the coil body.

[0029]   Further, in the above-described embodiment, the torsion coil spring 54 for reducing the initial pedaling force is used. The other end portion 58 is locked in the locking hole 62 of the stopper bracket 20 so as not to move relatively. However, the other end 58 is not provided with such a locking hole 62, and It does not matter if it is simply hooked to one edge of 20.

[0030]   Further, in the above-mentioned embodiment, the locking portion 34 of the torsion coil spring 30 is connected. Although it was locked to the contact member 28, the locking portion 34 is directly locked to the clutch pedal 18. It is also possible to constitute so. In addition, the locking portion 36 is the clamp block 42. Although it was locked to the stopper bracket 20 via the By erected from the racket 12, the locking portion 36 is directly attached to the pedal bracket 12. It can also be configured to be locked to.

Further, in the above-described embodiment, one torsion coil spring 30 is arranged above the shaft centers O ₂ and O ₃ , but instead of this, between the shaft centers O ₂ and O _3. It may be disposed below. Further, a pair of torsion coil springs may be arranged both above and below the axis O ₂ and O ₃ , and in this case, the assisting force is doubled, and it is compatible with operation pedals with large stepping resistance. It becomes possible to do.

[0032]   In addition, in the above-described embodiment, the torsion coil spring 30 has the structure shown in FIG. It is configured to be located on the right side of the latch pedal 18, that is, on the driver side in the vehicle. However, depending on the installation space and other factors, the clutch pedal in FIG. The torsion coil spring is on the left side of the steering wheel 18, that is, on the body frame side in front of the driver's seat. It can be configured to be located.

[0033]   Further, in the above-described embodiment, the torsion coil spring 54 for reducing the initial pedaling force is Although it was arranged around the locking pin 40, a torsion coil spring for reducing the initial pedaling force 54 does not necessarily have to be provided.

[0034]   Further, although the bush 38 in the above-mentioned embodiment is made of an oil-impregnated resin, It is made of non-oil containing resin such as polyacetal having abrasion resistance. Is also good.

[0035]   Further, in the above-described embodiment, the clamp block 42 is previously attached to the locking pin 40. After disposing and inserting the locking portion 34 into the bush 38 of the connecting member 28, The engaging arm 44 of the locking portion 36 of the torsion coil spring 30 is attached to the clamp block 4 Assembling was done by fitting it into the engaging groove 46 of No. 2, but The engaging arm 4 of the engaging portion 36 of the torsion coil spring 30 in the engaging groove 46 of the hook 42. When the engaging portion 34 is inserted into the bush 38 of the connecting member 28 after the 4 is fitted. At the same time, the clamp block 42 is fitted to the locking pin 40 to be assembled. Assembling is performed by procedures other than the above, such as partially changing the order. It doesn't matter.

[0036]   Although not illustrated one by one, the present invention is subject to various changes and modifications based on the knowledge of those skilled in the art. It can be carried out in a mode in which goodness is added.

[Brief description of drawings]

FIG. 1 is a view for explaining a configuration of a main part of a turnover device which is an embodiment of the present invention, and is a cross-sectional view taken along line I-I in FIG.

FIG. 2 is a perspective view of a locking member that is a component of the turnover device of FIG.

FIG. 3 is a left side view of a clutch pedal operating device including the turnover device of FIG.

FIG. 4 is a front view of a clutch pedal operating device including the turnover device of FIG.

5 is a diagram showing a state where a clutch pedal is depressed in the turnover device of FIG.

[Explanation of symbols]

10: Turnover device 12: Pedal bracket 16: rotation axis (one rotation axis) 18: Clutch pedal (operation pedal) 30: Torsion coil spring 32: coil body 34: Locking part (second locking part) 36: Locking part (first locking part) 38: Bush 40: Locking pin 42: Clamp block (locking member) 44: Engaging arm 46: Engagement groove 54: Torsion coil spring for reducing initial pedal effort 68: Through hole

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Creator Satoru Maruyamano             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A coil main body wound in a coil shape, and a pair of a first locking portion and a second locking portion extending from both ends of the coil main body to the other end side through the outside of the coil main body. And the position locking with the first locking portion and the second locking portion being urged in a direction toward or away from each other around the center line of the coil body by the spring force of the coil body. Of the pedal bracket and one or the other of the operation pedals rotatably disposed on the pedal bracket about one rotation axis, and are engaged with the pedal bracket so as to be relatively rotatable about an axis parallel to the one rotation axis. Accordingly, the coil body is provided with a torsion coil spring arranged in a posture in which the center line of the coil body is parallel to the one rotation axis, and the operation pedal is moved from the original position to the first locking portion and the second locking portion. Part is the pedal bracket and Until the pair of locking points locked to the operation pedal and the one rotation shaft are operated to a turnover point located on a substantially straight line, the operation pedal is rotated toward the original position. A turnover device that urges the operating pedal to rotate in the stepping direction when the operating pedal is depressed beyond the turnover point. The stop portion has an engagement arm located in a plane perpendicular to the center line of the coil body, and one of the pedal bracket and the operation pedal is engageable with the engagement arm. A locking member provided with a groove is disposed so as to be rotatable around a locking pin erected parallel to the one rotation shaft and immovable in the axial direction of the locking pin. Is based on the spring force of the coil body. The second engaging portion is engaged with an engaging groove of an engaging member, and the second engaging portion is in a through hole of a bush arranged on the other side of the pedal bracket and the operation pedal in parallel with the one rotation shaft. A turnover device for an operation pedal, wherein the turnover device is inserted into and locked in. 2. The locking pin is disposed on the locking pin so as to be inserted through the coil, and both ends of the coil are the locking pin or a member on which the locking pin is erected. By being engaged with both the locking member, a biasing force acts so that the operation pedal rotates in the stepping direction until the operation pedal reaches the vicinity of the turnover point from the original position. The turnover device for an operation pedal according to claim 1, further comprising a torsion coil spring for reducing an initial pedaling force, which becomes a natural state when the vicinity of the turnover point is exceeded and the biasing force to the operation pedal becomes zero.