JP4269326B2 - Auxiliary brake device for automobile - Google Patents

Description

  The present invention relates to an auxiliary brake device for an automobile.

  2. Description of the Related Art Conventionally, there has been proposed an auxiliary brake device for an automobile so that the brake pedal on the driver's seat side can be depressed not only from the driver's seat but also from the passenger's seat (for example, see Patent Document 1). ). The auxiliary brake device proposed by this patent document 1 is demonstrated.

  FIG. 4 is an explanatory view showing a schematic configuration of the auxiliary brake device, in which A is a driver seat side unit, B is a passenger seat side unit, and a stepping-in operation from the initial position of the auxiliary pedal 100 of the passenger seat side unit B Is transmitted to the main pedal 1 on the driver's seat side via the cable C, and the main pedal 1 follows the stepping direction from the initial position, and the main pedal 1 follows the returning operation after the auxiliary pedal 100 is stepped on. It returns to the initial position from the depressed position. On the other hand, when the main pedal 1 is depressed on the driver's seat side, only the main pedal 1 operates and the auxiliary pedal 100 maintains the initial position. Further, when the main pedal 1 operates in the depression direction, the booster mechanism D operates to exert a braking action when the vehicle is running.

  FIG. 5 is a partially broken plan view showing the structure of the main part of the driver's seat side unit A. As shown in the figure, the driver's seat side unit A includes the guide member 2 in addition to the main pedal 1 described above. The movable element 25, the fixing mechanism 3, the connecting tool 7 and the like are provided. Among these, the guide member 2 forms a straight long guide surface 21 formed by the long hole wall surface. The mover 25 includes a stepped bolt 26 fitted in a long hole forming the guide surface 21, and is slidable on the guide member 2 by a nut 27 screwed into the stepped bolt 26 and tightened. It is held rotatably. The fixing mechanism 3 is responsible for connecting the guide member 2 to the main pedal 1. The fixing mechanism 3 is fixed to the guide member 2 by a fastener 31 made of a bolt and a nut, and is fixed to the main pedal 1. The bolts 32 and 33 are also fastened and fixed.

  The cable C includes a tube 210 having flexibility that does not easily bend, and a metal wire 220 that is inserted into the tube 210 so as to be movable in the retracting direction. The tube 210 is fixed to the mover 25 of the driver seat side unit A as shown in FIG. 5, whereas the tube 210 is fixed to a fixed position in the passenger seat side unit B shown in FIG. Further, one end of the wire 220 drawn from the tube 210 as shown in FIG. 5 is connected to the connecting tool 7 installed on the driver's seat side floor via a rotatable holding tool 71. By adopting this configuration, when the cable C is routed between the driver seat side unit A and the passenger seat side unit B in a certain loose state, as described above, When the wire 220 is pulled to the passenger seat side by the depression operation of the auxiliary pedal 100 and is in a tension state, the tube 210 is pushed out to the driver seat side relative to the wire 220, so that the tube 210 pushes the mover 25. Then, the locking portion 22 provided on the guide surface 21 is pressed down, and the pressing operation is transmitted to the main pedal 1 via the fixing mechanism 3 so that the main pedal 1 on the driver's seat side follows the stepping direction. Further, when the auxiliary pedal 100 of the passenger seat side unit B returns from the depressed position toward the initial position, the tension state of the wire 220 is released by the returning operation, and the pushing of the tube 210 to the driver seat side is also released. Therefore, the main pedal 1 on the driver's seat returns from the depressed position toward the initial position. Note that a resilient urging force in the return direction always acts on the auxiliary pedal 100 and the main pedal 1 itself.

  In the conventional auxiliary brake device described above, as described above, when the main pedal 1 is depressed on the driver's seat side (arrow F1 in FIG. 5), only the main pedal 1 operates and the auxiliary pedal 100 is in the initial position. Keeps holding. At that time, the guide member 2 moves in the stepping direction together with the main pedal 1, but the mover 25 is held by the tube 210 of the cable C and remains in a fixed position. It slides and the latching | locking part 22 leaves | separates from the needle | mover 25. Further, as described above, when the main pedal 1 returns from the depressed position to the initial position after being depressed (arrow F2 in FIG. 5), the guide surface 21 slides with respect to the movable element 25, and the locking portion 22 is moved to the movable element 25. approach. In the auxiliary brake device configured as described above, the guide member 2 positions the tube 210 of the cable C connected to the mover 25 within a certain movable range on the driver's seat side and places the tube 210 on the driver's seat side. It helps to make sure that you can move in and out.

JP 2005-206112 A

  By the way, in the auxiliary brake device for an automobile proposed by Patent Document 1, as described with reference to FIG. 5, the fixing mechanism 3 and the guide member 2 that are responsible for connecting the guide member 2 to the main pedal 1. And the fixing mechanism 3 is fastened and fixed to the main pedal 1 by bolts 32 and 33, as shown in FIG. A horizontal shaft 12 fixed on the vehicle body is supported so as to be swingable. For this reason, when the main pedal 1 is returned to the depressed position, the guide member 2 swings the arc locus around the horizontal axis 12 together with the main pedal 1, but the guide member 2 has the long guide surface 21, so that it is as much as possible. While an arrangement that is tangential to the arc locus is required, it is also required that the guide member 2 is not in contact with the lower part of the instrument panel of the driver's seat. The guide member 2 is required to have the ideal arrangement as described above. However, the angle and shape of the main pedal 1 are different for each type of automobile, and it is difficult to obtain an ideal arrangement of the guide member 2 simply by attaching the fixing mechanism 3 to the main pedal 1. It can be said that an excessive load is easily applied to the sliding portion between the guide surface 21 and the mover 25 during the return operation. Further, since the arc trajectory of the main pedal 1 is usually different for each vehicle type, the load becomes so large that it cannot be ignored depending on the arc trajectory of the main pedal 1 depending on the type of vehicle. Sometimes. In these cases, there is a problem in that the guide surface 21 or the mover 25 may be worn out at an early stage and smooth operation may not be performed, or malfunction due to such wear may occur. It was.

  Further, due to the excessive load as described above, the movable element 25 moves following the guide member 2 when the main pedal 1 is depressed, or the guide surface 21 is moved when the main pedal 1 is restored. There is also a possibility that the main pedal 1 cannot be normally restored due to the smooth sliding with respect to the mover 25.

  In order to improve these problems, it is beneficial to appropriately adjust the mounting posture of the guide member 2 with respect to the main pedal 1 for each vehicle model. In order to do so, a fixing mechanism is used. In order to change the size and structure of 3 or the like and to adjust the mounting posture of the guide member 2 and the main pedal 1 to the fixing mechanism 3 for each vehicle type, one auxiliary brake device is used for many types of vehicles. There was a problem that it was difficult to share.

  The present invention has been made in view of the above problems.Appropriate measures are taken for the fixing mechanism that connects the guide member to the main pedal on the driver's seat side, and the attitude of the guide member with respect to the main pedal is changed according to the vehicle type of the automobile. By making it possible to adjust appropriately, the guide member can obtain an ideal arrangement even in automobiles of different vehicle types, and the sliding of the guide surface of the guide member and the mover can be performed when the main pedal is depressed. An object of the present invention is to provide an auxiliary brake device for an automobile that can suppress a load applied to a moving portion as small as possible.

  Another object of the present invention is to provide an auxiliary brake device for an automobile capable of avoiding a situation in which the mover moves following the guide member.

The auxiliary brake device for an automobile according to the present invention includes a driver seat side unit having a main pedal provided on the driver seat side, and a passenger seat side unit having an auxiliary pedal provided on the passenger seat side. The driver side unit forms a guide member having a locking portion, a movable member held by the guide member and slidable with respect to the guide surface, and the guide member as the main pedal. And a stepping operation from the initial position of the auxiliary pedal is transmitted to the mover, and the mover pushes the guide member through the locking portion, thereby the main pedal. Follows the stepping direction, follows the return operation of the auxiliary pedal from the depressed position, returns the main pedal to the initial position, and follows the movement of the guide member when the main pedal is depressed. The guide surface is slid with respect to the movable element, and the latching portion moves away from the movable element.

  In particular, the fixing mechanism is divided into an attachment mechanism that is attached to the main pedal and an intermediate connection mechanism that connects the attachment mechanism and the guide member, and the intermediate connection mechanism is connected to the main pedal. A configuration is adopted in which a function is provided that allows the posture of the guide member with respect to the stepping return direction to be individually changed around two axes orthogonal to each other.

  According to the auxiliary brake device having this configuration, the guide member has an ideal arrangement even in different types of vehicles by appropriately changing the posture of the guide member with respect to the main pedal around two axes orthogonal to each other. It is possible to obtain the load applied to the sliding portion between the guide surface of the guide member and the mover during the returning operation of the main pedal.

Furthermore, in the present invention, the intermediate coupling mechanism has a first support shaft that changes the posture of the guide member around a horizontal axis, and a second that changes the posture of the guide member around an axis parallel to the longitudinal direction of the guide surface. A structure in which the first support shaft and the axis of the second support shaft form the two axes perpendicular to each other, and the intermediate coupling mechanism is the first support shaft. And the intermediate coupling mechanism is coupled to the guide member by the second support shaft. According to this, it becomes possible to simplify the structure of an intermediate | middle connection mechanism.

  Further, in the present invention, the second support shaft is formed by a screw shaft into which a nut body provided in the intermediate coupling mechanism is screwed, and the screw shaft of the nut body is changed with respect to the screw shaft. It is desirable to be able to change the vertical distance between the locking portion of the guide member and the main pedal, and according to this, the vertical distance between the locking portion of the guide member and the main pedal, the appropriate values differ depending on the vehicle type The distance dimension can be appropriately changed according to the vehicle type, which helps to ensure the smooth operation of the auxiliary brake device even for vehicles of different vehicle types.

  Further, by adopting a configuration in which the second support shaft and the guide member are connected via a horizontal interval variable mechanism that enables a change in the horizontal interval between the main pedal and the guide member, The horizontal distance between the main pedal and the guide member can be changed as appropriate according to the vehicle type, which ensures smooth operation of the auxiliary brake device even for vehicles of different vehicle types. Useful.

  In the present invention, it is desirable that an urging force in a direction away from the engaging portion of the guide surface is always applied to the mover. According to this, a situation in which the mover moves following the guide member during the operation of returning the main pedal to the pedal is avoided, and the auxiliary brake device is likely to operate smoothly.

  As described above, the present invention divides the fixing mechanism that connects the guide member to the main pedal on the driver's seat into the mounting mechanism that is attached to the main pedal and the intermediate connection mechanism that connects the mounting mechanism and the guide member. In addition, since the intermediate coupling mechanism is provided with a function that can change the posture of the guide member with respect to the stepping return direction of the main pedal around two axes orthogonal to each other, the angle and position of the main pedal The guide member can be adjusted to the ideal angle without being influenced by the guide member, and it can be used not only for vehicles with different types of guide members but also for different types of vehicles. Therefore, it is possible to suppress the situation where the guide surface and the movable element operate smoothly and wear out at an early stage, and to perform a smooth operation.

  In particular, when the urging force in the direction away from the engaging portion of the guide surface is always applied to the mover, the situation in which the mover follows the guide member is eliminated and the operation stability is improved accordingly.

  FIG. 1 is a plan view showing a schematic configuration of a main part of a driver side unit A of an auxiliary brake device for an automobile according to the present invention, FIG. 2 is a view taken along an arrow II in FIG. 3 is a view taken along arrow III in FIG.

In the auxiliary brake device according to this embodiment, the configuration of the fixing mechanism 3 that connects the main pedal 1 and the guide member 2 is different from that of the fixing mechanism 3 described with reference to FIG. That is, in this embodiment, the fixing mechanism 3 is divided into an attachment mechanism 4 attached to the main pedal 1 and an intermediate connection mechanism 5 that connects the attachment mechanism 4 and the guide member 2. The mechanism 5 has a function of allowing the posture of the guide member 2 with respect to the main pedal depression return direction F to be individually changed around two axes orthogonal to each other. That is, as shown in FIG. 1, the intermediate coupling mechanism 5 includes a first support shaft 51 that changes the posture of the guide member 2 around the horizontal axis X, and the guide member 2 parallel to the longitudinal direction of the guide surface 21. A second support shaft 55 whose posture is changed around the axis Y, and the axis of the first support shaft 51 and the axis of the second support shaft 55 form the above two axes perpendicular to each other. .

  In this embodiment, the bolt used to connect the intermediate connecting mechanism 5 to the attachment mechanism 4 of the main pedal 1 is used as the first support shaft 51 and used to connect the intermediate connecting mechanism 5 to the guide member 2. The used bolt is employed as the second support shaft 55.

  Explaining this point in more detail, as shown in FIGS. 1 to 3, the bolt 41 provided in the attachment mechanism 4 is inserted into a hole (not shown) of the attachment plate portion 52 of the intermediate coupling mechanism 5. The bolt 41 is used as the first support shaft 51, and the attachment mechanism 4 can be rotated around the horizontal axis X as shown by the arrow R1. In this embodiment, a plurality of recesses 54 are arranged at the lower end of the positioning plate portion 53 formed by extending the mounting plate portion 52 downward, and the mounting mechanism is provided in any one of these recesses 54. The posture of the intermediate coupling mechanism 5 is fixed by fitting the positioning pins 43 protruding from the fourth frame plate 44. With this configuration, the mounting posture of the intermediate coupling mechanism 5 with respect to the mounting mechanism 4 can be changed in multiple stages by changing the recess 54 into which the positioning pin 43 is fitted. The positioning pin 43 is fixed by press fitting into a hole (not shown) provided in the frame plate 44. Further, the mounting plate 52 is fastened to the frame plate 44 by screwing the nut 42 into the bolt 41. On the other hand, a screw shaft 58 that is inserted through the elongated hole 24 of the mounting plate portion 23 that is connected to the guide member 2 at a right angle is used for the second support shaft 55. The screw shaft 58 is screwed into a nut body 57 provided in the projecting piece portion 56 of the intermediate coupling mechanism 5 and protrudes upward from the nut body 57. The head 59 of the screw shaft 58 and the screw shaft 58 are connected to the screw shaft 58. The mounting plate portion 23 is clamped by a screwed nut 61 and fixed to the mounting plate portion 23. Therefore, the guide member 2 can be rotated about the axis Y as shown by the arrow R2 by loosening the nut 61 and rotating the mounting plate portion 23 about the screw shaft 58.

  In this embodiment, the function of changing the vertical interval between the locking portion 22 of the guide member 2 and the main pedal 1 (locking portion position adjusting function) and the horizontal interval between the main pedal 1 and the guide member 2 are also included. It has a function (horizontal position adjustment function) that can be changed. Among these, the locking portion position adjusting function is exhibited by changing the screwing position in the axial direction of the nut body 57 with respect to the screw shaft 58. The horizontal position adjusting function is exhibited by loosening the nut 61 and changing the insertion position of the screw shaft 58 with respect to the long hole 24 of the mounting plate portion 23. Therefore, the horizontal interval variable mechanism for exerting this horizontal position adjusting function is constituted by the mounting plate portion 23 having the long hole 24, the screw shaft 58, and the nut 61. Thereby, the guide member can be adjusted to an ideal position without being influenced by the front / rear position or the left / right position of the main pedal.

  Next, in addition to the frame plate 44, the attachment mechanism 4 includes a holding plate 45 that sandwiches the main pedal 1 with the frame plate 44, and bolts 41 and 46 that connect the frame plate 44 and the holding plate 45. A holding screw 47 that presses the main pedal 1 against the frame plate 44 is provided.

  As in the case described with reference to FIG. 5, in this embodiment, the driver seat side unit A includes the mover 25 in addition to the main pedal 1 and the guide member 2 as shown in FIG. 1. And a connector 7 are provided. Then, the stepping operation from the initial position of the auxiliary pedal 100 of the passenger side unit B shown in FIG. 4 is transmitted to the main pedal 1 on the driver's seat side via the cable C, and the main pedal 1 moves in the stepping direction from the initial position. A follow-up operation is performed, and the main pedal 1 is returned from the depressed position to the initial position following the return operation after the auxiliary pedal 100 is depressed. On the other hand, when the main pedal 1 is depressed on the driver's seat side, only the main pedal 1 operates and the auxiliary pedal 100 maintains the initial position. Further, when the main pedal 1 operates in the depression direction, the booster mechanism D operates to exert a braking action when the vehicle is running.

  Therefore, the cable C includes a flexible tube 210 that does not easily bend, and a metal wire 220 that is inserted into the tube 210 so as to be movable in the retracting direction. 1 is fixed to the mover 25 of the driver's seat side unit A, whereas the passenger seat side unit B shown in FIG. 4 is fixed to a fixed position. Further, one end of the wire 220 drawn from the tube 210 as shown in FIG. 1 is connected to a connecting tool 7 installed on the driver's seat side floor via a rotatable holding tool 71. By adopting this configuration, as described above, when the wire 220 is pulled to the passenger seat side by the stepping operation of the auxiliary pedal 100 of the passenger seat side unit B and becomes in a tension state, Since the tube 210 is relatively pushed out toward the driver's seat, the tube 210 pushes down the locking portion 22 provided on the guide surface 21 via the mover 25, and the pushing operation is performed via the fixing mechanism 3. This is transmitted to the main pedal 1 and the main pedal 1 on the driver's seat side follows the stepping direction. Further, when the auxiliary pedal 100 of the passenger seat side unit B returns from the depressed position toward the initial position, the tension state of the wire 220 is released by the returning operation, and the pushing of the tube 210 to the driver seat side is also released. Therefore, the main pedal 1 on the driver's seat returns from the depressed position toward the initial position. Note that a resilient urging force in the return direction always acts on the auxiliary pedal 100 and the main pedal 1 itself.

  According to the auxiliary brake device according to the embodiment described above, the fixing mechanism 3 is divided into the attachment mechanism 4 and the intermediate coupling mechanism 5, and the intermediate coupling mechanism 5 is in the attitude of the guide member 2 with respect to the stepping-in return direction of the main pedal 1. Has a function that can be changed individually around two axes X and Y orthogonal to each other, so that the guide member can be adjusted to an ideal angle without being influenced by the angle or position of the main pedal, For vehicles in which the angle, position, etc. of the main pedal 1 on the driver's seat side are different due to differences, the attitude of the guide member 2 is changed appropriately around the two axes X and Y and adjusted appropriately. It becomes possible. Therefore, even when this auxiliary brake device is shared by different vehicle types, the guide member can obtain an ideal arrangement, and the situation where the guide surface 21 and the mover 25 operate smoothly and wear out early is suppressed. A smooth operation can be performed, and the operation stability is improved.

  By the way, in this embodiment, the urging | biasing force of the direction separated from the latching | locking part 22 of the guide surface 21 is always provided to the needle | mover 25. FIG. For example, as shown in FIG. 1, the urging force is obtained by fitting the coil spring 8 into the wire 220 drawn from the tube 210 of the cable C on the driver's seat side, and using the coil spring 8 as the movable element 25 and the holder. It is obtained by compressing with 71. By doing so, the situation in which the mover 25 moves following the guide member 2 during the return operation of the main pedal 1 is prevented by the biasing of the coil spring 8, and the operation stability of the auxiliary brake device is improved. . Instead of the coil spring 8, a torsion spring or a bellows tube made of a soft material such as urethane or silicone can be used.

  In the embodiment described above, the wire 220 of the cable C is drawn to the passenger seat side by the stepping operation of the auxiliary pedal 100 of the passenger seat side unit, thereby pushing the tube 210 to the driver seat side and causing the main pedal 1 to follow. However, this point is that the tube 210 is connected to the connector 7 installed on the driver's seat side floor via the rotatable holder 71, and one end of the wire 220 drawn from the tube 210 is connected. It is also possible to adopt a configuration in which it is fixed to the mover 25 of the driver seat side unit A. In this case, when the wire 220 is pulled toward the passenger seat side by the depression operation of the auxiliary pedal 100 of the passenger seat side unit B and is in a tension state, the wire 220 is provided on the guide surface 21 via the mover 25. The locking portion 22 is pressed down, and the pressing operation is transmitted to the main pedal 1 via the fixing mechanism 3 so that the main pedal 1 on the driver's seat side follows the stepping direction. Further, when the auxiliary pedal 100 of the passenger seat side unit B returns from the depressed position toward the initial position, the tension state of the wire 220 is released by the returning operation, so that the main pedal 1 on the driver's seat side moves from the depressed position. It will return toward the initial position. Thus, it is also possible to reverse the handling of the cable C on the driver's seat side.

It is the top view which showed schematic structure of the principal part of the driver's seat side unit of the auxiliary brake device of the motor vehicle based on this invention. It is the II arrow line view of FIG. 1 which abbreviate | omitted the wire etc. and was shown. It is the III arrow directional view of FIG. 1 which abbreviate | omitted the wire etc. and was shown. It is explanatory drawing which showed schematic structure of the auxiliary brake device. It is a partially broken top view which showed the structure of the principal part of the driver's seat side unit by a prior art example.

Explanation of symbols

A Driver side unit B Passenger side unit X, Y Two axes orthogonal to each other 1 Main pedal 2 Guide member 3 Fixing mechanism 4 Mounting mechanism 5 Intermediate coupling mechanism 21 Guide surface 22 Locking portion 25 Movable element 51 First support shaft 55 Second spindle 57 Nut body 58 Screw shaft 100 Auxiliary pedal

Claims (4)

A driver's seat side unit having a main pedal disposed on the driver's seat side and a passenger's seat side unit having an auxiliary pedal disposed on the passenger's seat side, the driver's seat side unit having a locking portion A guide member that forms the shape, a mover that is held by the guide member and is slidable with respect to the guide surface, and a fixing mechanism that connects the guide member to the main pedal,
The stepping operation from the initial position of the auxiliary pedal is transmitted to the mover, and the mover pushes the guide member through the locking portion, whereby the main pedal follows the stepping direction, and the auxiliary pedal The main pedal returns to the initial position following the return operation from the depressed position, and the guide surface slides relative to the mover following the movement of the guide member when the main pedal is depressed. An auxiliary brake device for an automobile that operates so that the locking portion is separated from the mover,
The fixing mechanism is divided into an attachment mechanism that is attached to the main pedal and an intermediate connection mechanism that connects the attachment mechanism and the guide member, and the intermediate connection mechanism is in a direction in which the main pedal is depressed. A function of allowing the posture of the guide member to be individually changed around two axes orthogonal to each other ;
The intermediate coupling mechanism has a first support shaft that changes the posture of the guide member about a horizontal axis, and a second support shaft that changes the posture of the guide member about an axis parallel to the longitudinal direction of the guide surface. The axis of the first support shaft and the axis of the second support shaft form the two axes perpendicular to each other, the intermediate connection mechanism is connected to the mounting mechanism by the first support shaft, and An auxiliary brake device for an automobile, wherein the intermediate coupling mechanism is coupled to the guide member by the second support shaft . The second support shaft is formed by a screw shaft into which the nut body provided in the intermediate coupling mechanism is screwed, and the locking portion of the guide member is changed by changing the screwing position of the nut body with respect to the screw shaft. The auxiliary brake device for an automobile according to claim 1 , wherein a vertical distance between the main pedal and the main pedal can be changed. Said second support shaft and said guide member, according to claim 1 or claim 2 are connected via a horizontal distance variable mechanism that enables changing the horizontal spacing between the main pedal and the guide member Auxiliary brake device for automobiles. The auxiliary brake device for an automobile according to any one of claims 1 to 3 , wherein a biasing force in a direction away from the engaging portion of the guide surface is constantly applied to the mover.

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