JPH04123722U - Vehicle pedal device - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent breakage of the inner cable due to excessive tensile load, compressive load, or friction, and deformation of pedal levers, throttle links, etc. connected via the inner cable due to bending loads. [Structure] An intermediate lever 7 connected to an inner cable 8b is connected to a pedal lever 5 via a separation cylindrical spring 9 or a separation cylindrical spring 10 as an elastic member, and the pedal lever 5 is elastic with respect to the intermediate lever 7. The rotating force of the pedal lever 5 is transmitted to the inner cable 8b while being buffered.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is an accelerator pedal device and a brake pedal device installed in automobiles etc. For more information on vehicle pedal devices such as Regarding things that can be prevented.

0002

[Conventional technology]

Conventionally, as a vehicle pedal device installed in a vehicle such as an automobile, the pedal device shown in FIG. The accelerator pedal device shown in 8 and the slot device described in Japanese Utility Model Application Publication No. 1-106321. Tor pedal is known.

0003 The accelerator pedal device shown in FIGS. 7 and 8 is attached to the vehicle body via bracket a. The boss part c at the intermediate part is fitted onto the supported support pin b so that it can be supported rotatably around the horizontal axis. It is equipped with a pedal lever d which is held, and the upper end of this pedal lever d has an operation button. One end of the inner cable f in the cable e is directly connected. And this Pedal lever d is a return lever with one end locked to bracket a and externally mounted on boss part c. By engaging the other end of spring g, the inner cable f is rotated and biased in the direction of loosening it. The inner cable is released by pressing the pedal h at the lower end against the return spring g. It is designed to be operated by pulling the key f.

0004 On the other hand, the throttle pedal described in Utility Model Application Publication No. 1-106321 is Connect the body (pedal lever d) and the wire (inner cable f) via a movable member The movable parts are fixed to the vehicle body when excessive pedal force is applied to the pedal body. The rotation beyond a predetermined level is restricted by contacting the stopped stopper, and at that time, the connection maintaining means It is designed so that it can be tilted to the side of the pedal body and released from the locked state with the pedal body. has been completed.

[0005]

[Problem that the idea aims to solve] By the way, the accelerator pedal device shown in FIGS. 7 and 8 has a pedal lever d. Since one end of the inner cable f is directly connected to the If the depressing stroke of pedal lever d is too large compared to the amount of pulling operation of f, the pedal When an excessive pedal force is applied to the barrel h, an excessive tensile load is created on the inner cable f. and the pedal lever d and throttle lever connected via the inner cable f. Excessive bending load is applied to the links, etc. As a result, pedal lever d and throttle lever This may cause deformation of the link or breakage of the inner cable f. Also , if the inner cable f has been stretched due to long-term use or if it is connected to the other end of the inner cable f. If a foreign object gets caught in the connected throttle link, etc., and it does not return to the return position. , when the pedal h is released, the compressive load due to the return spring g is applied to the inner cable f. It acts on As this compressive load acts repeatedly, the inner cable f There is also a risk that it may break.

[0006] On the other hand, in the throttle pedal described in Japanese Utility Model Application No. 1-106321, If excessive pedal force is applied to the pedal body, the movable member will come into contact with the stopper, causing the pedal to exceed a specified level. The rotation of the pedal is restricted, and at that time, the movable member tilts to the side of the pedal body and Since the locked state with the wire is released, the wire will not break due to excessive tensile load, or The pedal body will not be deformed due to excessive bending load. But something like this The throttle pedal has a structure in which the movable member may break when excessive pedal force is applied to the pedal body. When the pedal body tilts to the side and the excessive pedaling force is released, the movable member tilts to the side of the pedal body. The wire connected to the movable member undergoes a so-called oscillating motion. occurs. If the angle of this swinging motion is large, the operation of the pedal body Sometimes, large friction occurs between the wire (inner cable f) and the outer cable, There is a risk that the wire will wear out and eventually break.

[0007] Therefore, the present invention aims to prevent the inner case from being affected by excessive tensile load, compressive load, or friction. or the pedal lever or slot connected via the inner cable. We provide vehicle pedal devices that can prevent deformation due to bending loads such as links. The purpose is to

[0008]

[Means to solve the problem]

For this purpose, the vehicle pedal device according to the present invention is rotatable against a return spring. The pedal lever is supported by the vehicle body, and the pedal lever can rotate freely around the same axis as the pedal lever. an intermediate lever supported and connected to one end of the inner cable in the operating cable; and an elastic member that transmits the rotational force of the pedal lever to the intermediate lever. I use that as a means.

[0009] Additionally, the elastic member is rotatable around the same axis as the pedal lever and the intermediate lever. A detachable cylindrical spring supported by the pedal lever, the engaging protrusion provided on the pedal lever and the intermediate lever A pair of engaging pieces facing each other so that they can be engaged with each other with an engaging protrusion provided on the bar in between. The means is to have it at the separated end.

0010

[Effect]

With such means, the rotational force of the pedal lever is transferred to the intermediate lever via the elastic member. This intermediate lever rotates around the same axis as the pedal lever, and the inner cable Pull or return operation without making a swinging motion. and excessive force The rotational force of the pedal lever due to the return spring causes the elastic member to elastically deform, and the intermediate lever This is absorbed by elastically rotating the pedal lever.

[0011] Therefore, the inner cable is subject to large frictional forces, excessive tensile loads, and compressive loads. This prevents the inner cable from breaking. Also, the pedal lever Excessive pedal force acting on the pedal lever or inner case is absorbed by the elastic member. Deformation of the member connected to the other end of the bull due to bending load is prevented.

0012

【Example】

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In FIGS. 1 and 2 showing the main parts of the vehicle pedal device according to the first embodiment, reference numeral 1 are brackets fixed to the vehicle body (not shown), and the left and right sides of this bracket 1 are A support pin 2 having a head 2a at one end is placed between the support pieces 1a and 1b at the other end. It is suspended horizontally with the attached clip 3 to prevent it from coming off. And between the support pieces 1a and 1b A boss 4 is rotatably fitted onto the outer periphery of the support pin 2.

[0013] At the center of the boss 4 is an upper end of a pedal lever 5 having a pedal 5a at the lower end. The parts are fitted and fixed. In addition, the support piece 1b of the pedal lever 5 and the bracket 1 A return spring 6 is wound around the outer periphery of the boss 4 between the boss 4 and the boss 4. and this return One end 6a of the spring 6 is locked to the bracket 1, and the other end 6b is connected to the pedal lever 5. By being locked, the pedal lever 5 has a habit of returning to the counterclockwise rotation as shown in Fig. 2. It is given.

[0014] Further, on the outer periphery of the boss 4 at a location near the support piece 1a of the bracket 1, A boss portion 7a provided at the lower end of the intermediate lever 7 is rotatably fitted. stop A locking portion 7b formed at the upper end of the intermediate lever 7 is provided with an engagement portion of the operating cable 8. One end of the inner cable 8b guided by the outer cable 8a is connected. . Although not shown, a throttle valve is attached to the other end of this inner cable 8b. A throttle link is connected to the throttle link.

[0015] Here, the outer periphery of the boss 4 between the pedal lever 5 and the intermediate lever 7 is A separation cylindrical spring 9 serving as an elastic member is rotatably fitted therein. This separation tube The shaped spring 9 has engaging pieces 9a and 9b that protrude radially outward, respectively, at separated ends. The pair of engaging pieces 9a, 9b are opposed to each other with a predetermined interval. There is. Note that this separation cylindrical spring 9 is made of metal with engaging pieces 9a and 9b formed by bending. It may be made of synthetic resin, or it may be made of synthetic resin with the engaging pieces 9a and 9b integrally formed. good.

[0016] On the other hand, a separation cylindrical spring 9 is engaged with the pedal lever 5 and the intermediate lever 7. Engagement protrusions 5b and 7c are formed, respectively, which can protrude between the pieces 9a and 9b and engage with both. has been done. Note that these engaging protrusions 5b and 7c are connected to the pedal lever 5 and the intermediate lever. - If 7 is made of sheet metal, it is formed by cutting and bending, and if it is made of aluminum die-casting, it is formed in one piece. It forms the body.

[0017] Next, we will discuss the vehicle pedal device of the first embodiment having such a configuration. Explain the action. First, with the throttle valve (not shown) closed, insert it into the throttle link. The pedal lever 5 connected via the inner cable 8b is connected to the pedal lever 5 as shown by the solid line in FIG. Initially, the pedal 5a is positioned at the return position, which is moved upward by a predetermined angle from the fully depressed position. position is set. In this set state, as shown in Fig. 3(a), The engaging protrusion 5b of the pedal lever 5 and the engaging protrusion 7c of the intermediate lever 7 are connected to the periphery of the boss 4. They are at substantially the same position in terms of direction, and the engaging pieces 9a and 9b of the separation cylindrical spring 9 are at the initial position. The engagement protrusion 5b and the engagement protrusion 7c are sandwiched between them at a constant interval.

[0018] From the initial position set in this way, press the pedal in the direction of the arrow against the return spring 6. When the lever 5a is depressed, the engagement protrusion 5b separates from the cylindrical bar as the pedal lever 5 rotates. Push one of the engagement pieces 9a of the screws 9 in the same direction. For this reason, the detachable cylindrical spring 9 is The lever rotates in the same direction as the lever 5. Then, the engagement piece 9b of the separation cylindrical spring 9 By pushing the engagement protrusion 7c of the bar 7, the intermediate lever 7 is moved in the same direction as the pedal lever 5. Rotate in the direction and pull the inner cable 8b to operate the throttle link (not shown). Open the throttle valve via.

[0019] Here, even if the throttle valve is fully open, the depression stroke of the pedal 5a If there is enough room in the pedal 5a and excessive pedal force is applied to the pedal 5a in this state, the disconnection will occur. The cylindrical spring 9 is elastically deformed so as to greatly widen the distance between the engaging pieces 9a and 9b. To allow extra rotation of the pedal lever 5. That is, the pedal lever 5 is an intermediate lever. The pedal 5a rotates elastically relative to the pedal 5a. It is absorbed and is not directly transmitted to the intermediate lever 7. For this reason, the pedal 5a Even if excessive pedal force is applied, the pedal lever 5, intermediate lever 7, or inner cable The throttle link connected to the other end of bull 8b will not be deformed, and the throttle link connected to the other end of bull 8b will not be deformed, and There is no possibility that the cable 8b will be damaged due to excessive tensile load.

[0020] Also, if the pedal force is released with the throttle valve open, the pedal The lever 5 is rotated back by the return spring 6 in the direction opposite to the arrow in FIG. The spring 5b engages with the other engagement piece 9b of the separation cylindrical spring 9 and pushes it. this Therefore, the separation cylindrical spring 9 rotates in the same direction as the pedal lever 5. And the separation tube The engaging piece 9a of the shaped spring 9 pushes the engaging protrusion 7c of the intermediate lever 7, so that the intermediate lever The bar 7 also rotates back in the same direction as the pedal lever 5, and in this way the inner case The bull 8b is operated back in the direction in which the throttle valve closes.

[0021] During such a return operation of the inner cable 8b, the inner cable 8b is If a foreign object gets caught in the throttle link (not shown) connected to the other end, the inner If a return failure occurs in the cable 8b, the intermediate lever 7 will stop returning; When the separation cylindrical spring 9 widens the distance between the engaging pieces 9a and 9b as shown in FIG. 3(c) It deforms elastically. Then, the pedal lever 5, which is biased by the return spring 6, is moved to the center position. The pedal lever 7 is rotated elastically relative to the pedal lever 7, and thus the return spring 6 -5 return rotational force is absorbed. For this reason, the intermediate lever 7 has an unreasonable return turning force. does not work and the inner cable 8b is repeatedly subjected to excessive compressive load and breaks. I have nothing to say.

[0022] Furthermore, even if there is no defect in returning the inner cable 8b, If the bull 8b is stretched due to long-term use, the pedal lever 5 will return to its initial position. Before this occurs, the throttle valve is fully closed and the intermediate lever 7 stops returning. However, in this case as well, the separation cylindrical spring 9 widens the distance between the engaging pieces 9a and 9b. The pedal lever 5 is elastically deformed to absorb the return turning force of the pedal lever 5 caused by the return spring 6. Ru. Therefore, the inner cable 8b is repeatedly subjected to excessive compressive load and breaks. There is no such thing.

[0023] Next, a vehicle pedal device according to a second embodiment of the present invention will be described. This first In the second embodiment, a detachable cylindrical spring 9 as an elastic member is replaced with a detachable cylindrical spring 1 shown in FIG. It differs from the first embodiment in that it is changed to 0, and the other points are the same as the first embodiment. It's like that. Therefore, detailed explanations are omitted for similar components and the same symbols are used. and provide necessary explanations.

[0024] The separated cylindrical spring 10 has a notch 10a along the circumferential direction at one separated end. The engagement pieces 10b and 10c are separated into two pieces, and the engagement piece 10 is attached to the other separated end. d, and the engaging pieces 10b, 10c and the engaging piece 10d are spaced apart by a predetermined distance. They are open and face each other, each projecting radially outward. and depth of cut 10 By appropriately selecting the position of a, the pedal lever 5 can be engaged when the pedal 5a is depressed. The engagement piece 10b that engages with the protrusion 5b is configured to engage the intermediate lever 7 when the pedal force is released from the pedal 5a. It is formed wider than the engaging piece 10c that engages with the engaging protrusion 7c.

[0025] Such a detachable cylindrical spring 10 is connected to the pedal lever 5 and the intermediate lever as shown in FIG. It is rotatably fitted to the outer periphery of the boss 4 between the bar 7, and the engagement piece 10b and the engagement piece 10d, the engagement protrusion 5b of the pedal lever 5 engages when the pedal 5a is depressed. It protrudes to engage only the piece 10b, and there is a plate between the engaging piece 10c and the engaging piece 10d. When the pedal force on the lever 5a is released, the engagement protrusion 7c of the intermediate lever 7 engages only with the engagement piece 10c. I'm rushing to do it.

[0026] According to this second embodiment, when the pedal 5a is depressed, the engagement protrusion of the pedal lever 5 5b engages with the engagement piece 10b, and the engagement protrusion 7c of the intermediate lever 7 engages with the engagement piece 10d. By matching, the rotational force of the pedal lever 5 is transmitted to the intermediate lever 7. and this When an excessive pedal force is applied to the pedal 5a, the separation cylindrical spring 10 releases the engagement piece 10b. is elastically deformed in the direction away from the engaging piece 10d, and the pedal lever 5 is moved to the intermediate lever 7. The excessive pedal force of the pedal 5a is absorbed by elastically rotating the pedal 5a.

[0027] Furthermore, when the pedal force on the pedal 5a is released, the pedal lever 5 is engaged as shown in FIG. The protrusion 5b engages with the engagement piece 10d, and the engagement protrusion 7c of the intermediate lever 7 engages with the engagement piece 10c. By engaging with, the return rotational force of the pedal lever 5 is transmitted to the intermediate lever 7. So At this time, a foreign object may get caught in the throttle link (not shown) or the throttle link may become stuck. When the torque valve is fully closed and the return rotation of the intermediate lever 7 is stopped, the separation cylindrical valve is opened. The screw 10 moves in the direction in which the engagement piece 10c that engages with the engagement protrusion 7c separates from the engagement piece 10d. Deforms elastically. Therefore, the pedal lever 5, which is biased by the return spring 6, becomes an intermediate lever. -7, and in this way, the return spring 6 causes the pedal lever 5 to be rotated elastically. The return rotational force is absorbed.

[0028] Here, there is a mechanism that absorbs excessive rotational force of the pedal lever 5 when the pedal 5a is depressed. The coupling piece 10b absorbs the return turning force of the pedal lever 5 when the pedal force on the pedal 5a is released. Since it is wider than the engaging piece 10c and has a larger spring force, it does not apply excessive force to the pedal lever 5. When a large pedal force is not applied, the pedal lever 5 is not unnecessarily elastically deformed, and the pedal lever 5 remains in the middle position. The lever 7 does not rotate more than necessary. For this reason, the inner cave The lever 8b is pulled and operated with good responsiveness. On the other hand, the spring force of the engagement piece 10c is Since it is small in size, it is easily elastically deformed by the spring force of the return spring 6, and the intermediate lever 7 On the other hand, the pedal lever 5 is rotated largely in the return rotation direction, and the inner This prevents unnecessary compressive loads from acting on the cable 8b.

[0029] FIG. 6 shows the main parts of a vehicle pedal device according to a third embodiment of the present invention. A notch 7d of a predetermined width is formed in the boss portion 7a of the intermediate lever 7. A locking pin 4a facing inward is provided protruding from the outer periphery of the boss 4. This third embodiment Since the other configurations are the same as those of the first embodiment or the second embodiment, detailed explanation thereof will be given below. The same reference numerals will be used to provide necessary explanations.

[0030] According to this third embodiment, the locking pin 4a rotates within the notch 7d and the boss portion 7a The boss 4 can rotate relative to the intermediate lever 7 within a predetermined angular range until it engages with the intermediate lever 7. . Therefore, the pedal lever 5 fixed to the boss 4 is rotated relative to the intermediate lever 7. The amount of movement is regulated to a predetermined angle, and the separation cylindrical spring 9 or the separation cylindrical spring The screw 10 does not undergo large elastic deformation and separate from the boss 4.

[0031] In addition, in each of the above embodiments, the detachable cylindrical spring 9 or the detachable cylindrical spring 1 The width, thickness, material, etc. of 0 are determined by the excessive pedal force acting on the pedal 5a and the spring of the return spring 6. It is selected as appropriate depending on the power.

[0032]

[Effect of the idea]

As explained above, according to the present invention, the turning force of the pedal lever is transmitted through the elastic member. is transmitted to the intermediate lever, which rotates around the same axis as the pedal lever. To pull or return an inner cable without swinging it. stop Excessive pedal force or turning force of the pedal lever due to the return spring may cause the elastic member to elastically deform. This is absorbed by elastically rotating the pedal lever relative to the intermediate lever.

[0033] Therefore, the inner cable is subject to large frictional forces, excessive tensile loads, and compressive loads. This prevents the inner cable from breaking. Also, Excessive pedal force acting on the pedal lever is absorbed by the elastic member, so the pedal lever and Prevents deformation of the member connected to the other end of the inner cable due to bending load. be able to.

[Brief explanation of drawings]

FIG. 1 is a front view showing essential parts of a first embodiment of a vehicle pedal device according to the present invention.

FIG. 2 is a side view showing essential parts of the first embodiment.

FIGS. 3A, 3B, and 3C are partial plan views of essential parts showing the operation of the first embodiment, respectively.

FIG. 4 is a perspective view of an elastic member in a second embodiment of the present invention.

FIG. 5 is a partial plan view of main parts showing the operation of the second embodiment.

FIG. 6 is a perspective view showing main parts of a third embodiment of the present invention.

FIG. 7 is a side view showing main parts of a conventional example.

FIG. 8 is a front view showing main parts of a conventional example.

[Explanation of symbols]

1 Bracket 1a, 1b Support piece 2 Support pin 3 Clip 4 Boss 4a Locking pin 5 Pedal lever 5a pedal 5b Engagement protrusion 6 Return spring 6a One end 6b Other end 7 Intermediate lever 7a Boss portion 7b locking portion 7c Engagement protrusion 7d Notch 8 Operation cable 8a Outer cable 8b inner cable 9 Separation tubular spring 9a, 9b engaging piece 10 Separation tubular spring 10a depth of cut 10b, 10c, 10d engaging piece

Claims (2)

[Scope of utility model registration request] [Claim 1] A pedal lever rotatably supported by the vehicle body against a return spring, and a pedal lever rotatably supported around the same axis as the pedal lever and connected to one end of an inner cable of the operating cable. A vehicle pedal device comprising: an intermediate lever; and an elastic member that transmits rotational force of the pedal lever to the intermediate lever. 2. The elastic member is a detachable cylindrical spring rotatably supported around the same axis as the pedal lever and the intermediate lever, and the elastic member is a detachable cylindrical spring that is rotatably supported around the same axis as the pedal lever and the intermediate lever, and the elastic member is a detachable cylindrical spring that is rotatably supported on the same axis as the pedal lever and the intermediate lever. 2. The vehicle pedal device according to claim 1, further comprising a pair of engagement pieces at the separated ends that face each other so as to be able to engage with the protrusion.