WO2018051560A1 - Parking brake lever device - Google Patents

Parking brake lever device Download PDF

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Publication number
WO2018051560A1
WO2018051560A1 PCT/JP2017/012909 JP2017012909W WO2018051560A1 WO 2018051560 A1 WO2018051560 A1 WO 2018051560A1 JP 2017012909 W JP2017012909 W JP 2017012909W WO 2018051560 A1 WO2018051560 A1 WO 2018051560A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil spring
compression coil
end portion
parking brake
lever device
Prior art date
Application number
PCT/JP2017/012909
Other languages
French (fr)
Japanese (ja)
Inventor
浩三 龍瀧
恒明 小田
Original Assignee
豊田鉄工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 豊田鉄工株式会社 filed Critical 豊田鉄工株式会社
Publication of WO2018051560A1 publication Critical patent/WO2018051560A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated
    • B60T7/10—Disposition of hand control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/06—Wound springs with turns lying in cylindrical surfaces
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/04—Controlling members for hand actuation by pivoting movement, e.g. levers

Definitions

  • the present invention relates to a parking brake lever device in which a release knob is urged by a compression coil spring.
  • the sector has a fan-shaped outer peripheral engagement tooth whose center position is O1, and is fixed to the vehicle body.
  • This sector is provided with an operation lever that is rotatable about a rotation axis arranged at the center O1.
  • This operation lever has a brake operating cable connected to one end of the right end of the center O1, and the parking brake body is operated by pulling the cable by the rotation of the operating lever.
  • one end of the left side of the center O1 of the operating lever is inclined obliquely upward and has an end portion extending horizontally, and a horizontal cylinder formed in a cylindrical shape among the horizontal end portions. A grip is inserted into the part and supported.
  • a pushable operation knob is disposed at the end of the grip so as to be able to protrude and retract, and between the back of the operation knob and a stopper formed at an intermediate portion of the horizontal cylinder portion of the operation lever.
  • the first spring is disposed, and the operation knob is urged in the protruding direction by the first spring.
  • the present invention has been made in view of the above-described points, and is a parking that allows an inspector to easily find an assembly failure in which a compression coil spring is locked by a locking claw between windings. It is an object to provide a brake lever device.
  • the parking brake lever device which has been made to solve this problem, is provided in a substantially cylindrical operation portion, a release knob protruding from an end portion of the operation portion in the cylindrical axis direction, and a release knob.
  • a compression coil spring that urges the release knob outward of the operation portion, and one end portion of the compression coil spring is a close winding end portion where the windings of the compression coil spring are in close contact with each other, and the length of the close winding end portion is
  • the release knob is pushed in a direction opposite to the urging direction of the compression coil spring and is longer than the amount of change when the compression coil spring undergoes compression change.
  • the amount of change when the compression coil spring undergoes compression changes refers to the total amount of deflection based on the natural length of the compression coil spring in an uncompressed state.
  • the parking brake lever device according to claim 2 is the parking brake lever device according to claim 1, wherein the latching claw extends from the upright portion, the upright portion rising from the inner side surface of the lever body, And a straight portion along the cylindrical axis direction of the operation portion.
  • the parking brake lever device according to claim 3 is the parking brake lever device according to claim 2, wherein the length of the straight portion of the locking claw is determined by the winding interval in the non-compressed state of the compression coil spring. It is also characterized by its long length.
  • the parking brake lever device according to claim 4 is the parking brake lever device according to any one of claims 1 to 3, wherein the other end portion of the compression coil spring is a tightly wound end portion. It is characterized by.
  • the one end portion of the compression coil spring is a tightly wound end portion in which the windings of the compression coil spring are brought into close contact with each other. It is not locked to the locking claw on the side surface of the winding end. However, an assembly failure may occur in which the compression coil spring is locked by the locking claws between the windings other than the tightly wound end portion (one end portion).
  • the length of the tightly wound end portion (one end portion) of the compression coil spring is longer than the amount of change when the compression coil spring is compressed and changed by pushing the release knob in the direction opposite to the biasing direction of the compression coil spring. . Therefore, when the above-described defective assembly of the compression coil spring occurs, at least when the release knob is not pushed in, the other end of the compression coil spring is separated from the spring receiving portion. It will not be biased outward.
  • the inspector confirms whether or not the release knob is biased outward of the operation portion, so that the compression coil spring is engaged with the locking claw between the windings. It is possible for an inspector to easily find an assembly failure that can be stopped.
  • the locking claw since the locking claw includes an upright portion and a straight portion, and the locking claw is substantially L-shaped, other than the tightly wound end portion (one end portion) of the compression coil spring. It is difficult for the locking claws to enter between the windings present in the wire.
  • the locking claw since the length of the straight portion of the locking claw is longer than the winding interval in the non-compressed state of the compression coil spring, the locking claw is between the windings of the compression coil spring. not enter.
  • FIG. 2 is a cross-sectional view of the parking brake lever device cut along line AA in FIG. 1.
  • FIG. 2 is a cross-sectional view of the parking brake lever device cut along line AA in FIG. 1. It is a figure showing the natural length of the same compression coil spring, the amount of bending, and the length relationship of a tightly wound end part.
  • FIG. 2 is a cross-sectional view of the parking brake lever device cut along line AA in FIG. 1 when the compression coil spring is bent.
  • the front-back direction, the up-down direction, and the left-right direction of the parking brake device are defined and described as the front-rear direction, the up-down direction, and the left-right direction shown in the drawings.
  • a detailed description of a known technique excluding matters specifying the present invention may be omitted.
  • the parking brake lever device 11 of the present embodiment includes a sector 13, a lever body 15, a grip member 17, a release knob 19, a brake cable 21, an equalizer device 23, a parking brake switch BS, and the like. .
  • the sector 13 is a substantially flat plate-like member, and is fixed substantially perpendicularly to a vehicle floor (not shown).
  • a lever body 15 is rotatably supported by the sector 13 via support pins P1 and P2.
  • the front end portion of the lever main body 15 is formed in a substantially cylindrical shape, and a grip member 17 is fitted thereto.
  • the front end portion of the lever main body 15 and the grip member 17 constitute an operation unit S and are gripped by the driver when the lever main body 15 is rotated.
  • a release knob 19 protrudes from the front end SA of the operation unit S.
  • the front end of the brake cable 21 is connected to the lever body 15 via a cable guide 29 shown in FIG.
  • the rear end of the brake cable 21 is connected to the equalizer device 23.
  • the brake cable 21 can transmit the turning operation force of the lever body 15 to the equalizer device 23.
  • the equalizer device 23 equalizes the rotational operation force of the lever body 15 and transmits it to the left and right parking brakes (not shown) of the vehicle. That is, the driver can operate or release the left and right parking brakes (not shown) of the vehicle by rotating the lever body 15 clockwise or counterclockwise in FIG.
  • the parking brake switch BS detects whether the left and right parking brakes (not shown) of the vehicle are in an operating state by switching on and off of the contacts.
  • Reference numerals P3 and P4 are support pins.
  • the parking brake lever device 11 of the present embodiment includes a synthetic resin member 23 ⁇ / b> A, an equalizer main body in addition to the sector 13, the grip member 17, the brake cable 21, and the parking brake switch BS described above. 23B, a first half 25, a second half 27, and a cable guide 29.
  • the synthetic resin member 23A and the equalizer main body 23B constitute the equalizer device 23 described above.
  • the synthetic resin member 23A is assembled in the equalizer main body 23B.
  • the rear end of the brake cable 21 is inserted into the equalizer main body 23B via the synthetic resin member 23A.
  • a locking member 21 ⁇ / b> A is provided at the rear end of the brake cable 21.
  • the first half 25 and the second half 27 constitute the lever body 15 described above.
  • the first half 25 is provided with pin holes 25A, 25B, 25C, 25D and a flange portion 25E.
  • the second half 27 is provided with pin holes 27A, 27B, 27C, 27D and a flange portion 27E.
  • the cable guide 29 is provided with a cable groove 29A on the left side surface (inner surface).
  • the left side surface (inner surface) of the cable guide 29 is welded to the right side surface (outer surface) of the first half body 25 while being superimposed on the right side surface (outer surface) of the first half body 25.
  • a first opening that communicates with the cable groove 29A is formed at the front lower end of the cable guide 29, and a second opening that communicates with the cable groove 29A is formed at the front upper end of the cable guide 29. Is done.
  • a bolt shaft 21 ⁇ / b> C joined to the front end portion of the brake cable 21 via the caulking member 21 ⁇ / b> B is inserted into the first opening portion formed at the front lower end portion of the cable guide 29.
  • the bolt shaft 21 ⁇ / b> C passes through the cable groove 29 ⁇ / b> A and protrudes from a second opening formed at the front upper end of the cable guide 29.
  • a nut member 21D is screwed into the protruding portion of the bolt shaft 21C. As a result, the front end of the brake cable 21 is connected to the lever body 15.
  • the parking brake lever device 11 of the present embodiment includes a compression coil spring 31, a first knob member 32, a second knob member 33, a release rod 35, a pole 37, and a ratchet 39.
  • the compression coil spring 31 biases the release knob 19 described above forward.
  • the release knob 19 includes a first knob member 32 and a second knob member 33.
  • the assembly of the compression coil spring 31, the first knob member 32, the second knob member 33, the release rod 35, and the pole 37 will be described later.
  • the ratchet 39 is a substantially flat plate-like member, and is provided with a protruding portion 39A and a tooth portion 39B.
  • the sector 13 is provided with fixing pin holes 13A and 13B, a notch 13C, a rotation pin hole 13D, and a guide pin hole 13E.
  • the parking brake switch BS is fixed to the sector 13.
  • a projection 39A of the ratchet 39 is caulked into the notch 13C. As a result, the ratchet 39 is fixed to the sector 13.
  • the support pin P1 is inserted into the rotation pin hole 13D.
  • the right end portion of the support pin P ⁇ b> 1 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25 ⁇ / b> A of the first half body 25.
  • the left end portion of the support pin P1 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27A of the second half body 27.
  • the guide pin hole 13E is formed in an arc shape centering on the rotation pin hole 13D.
  • the support pin P2 is inserted into the guide pin hole 13E.
  • the right end portion of the support pin P2 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25B of the first half body 25.
  • the left end portion of the support pin P ⁇ b> 2 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27 ⁇ / b> B of the second half body 27.
  • the lever main body 15 composed of the first half 25 and the second half 27 is rotatably supported via the support pins P1 and P2.
  • the support pin P ⁇ b> 1 functions as a rotation shaft of the lever body 15.
  • a pole 37 is rotatably supported via a support pin P3.
  • the support pin P ⁇ b> 3 is inserted into the rotation pin hole 37 ⁇ / b> A provided in the approximate center of the pole 37.
  • the right end portion of the support pin P3 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25C of the first half body 25.
  • the left end portion of the support pin P3 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27C of the second half body 27.
  • the support pin P3 functions as a rotation axis of the pole 37.
  • first half 25 and the second half 27 are integrated by the support pin P4. Therefore, the right end portion of the support pin P4 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25D of the first half body 25. The left end portion of the support pin P4 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27D of the second half body 27.
  • the flange 25E of the first half 25 and the flange 27E of the second half 27 are integrated.
  • the sector 13 the compression coil spring 31, the first knob member 32, the second knob member 33, the release rod 35, the pole 37, and the ratchet 39 are included in the lever body 15.
  • the integrated flange portions 25E and 27E are turned on and off by contacting or separating the contact of the parking brake switch BS according to the rotation of the lever body 15.
  • the first knob member 32 is provided with an accommodating portion 32A.
  • a second knob member 33 is engaged with the accommodating portion 32A.
  • a spring receiving portion 33 ⁇ / b> A is provided on the rear side surface of the second knob member 33.
  • an attachment projection 35A is provided at the front end of the release rod 35.
  • a connecting projection 35B is provided at the rear end of the release rod 35.
  • a connecting hole 37 ⁇ / b> B is provided at the upper end of the pole 37.
  • the connecting projection 35B of the release rod 35 is engaged with the connecting hole 37B.
  • a claw portion 37 ⁇ / b> C is provided at the lower end portion of the pole 37.
  • the claw portion 37C meshes with the tooth portion 39B of the ratchet 39.
  • the front end portion 25F of the first half body 25 is provided with a substantially L-shaped locking claw 41 by cutting and raising the flat surface portion. The details of the locking claw 41 will be described later.
  • the compression coil spring 31 is inserted through the release rod 35 from the front end of the release rod 35.
  • the front end portion of the release rod 35 is accommodated in the accommodating portion 32A of the first knob member 32 together with the attachment projection 35A provided at the front end portion.
  • the mounting protrusion 35A of the release rod 35 is locked.
  • the second knob member 33 is engaged with the accommodating portion 32 ⁇ / b> A of the first knob member 32. Thereby, the front end portion of the release rod 35 is connected to the release knob 19 constituted by the first knob member 32 and the second knob member 33.
  • the first end of the compression coil spring 31 is attached to the spring receiving portion 33 ⁇ / b> A of the second knob member 33.
  • the second end of the compression coil spring 31 is locked to the locking claw 41 of the first half 25.
  • the compression coil spring 31 is slightly compressed and generates a restoring force.
  • the release knob 19 constituted by the first knob member 32 and the second knob member 33 is urged forward by the restoring force of the compression coil spring 31.
  • the restoring force of the compression coil spring 31 urges the pole 37 in the counterclockwise direction of FIG. 3 via the release rod 35, so that the pawl portion 37C of the pole 37 is engaged with the tooth portion 39B of the ratchet 39. .
  • the front end 25F of the first half 25 and the front end 27F of the second half 27 are formed.
  • the front end of the lever body 15 is formed in a substantially cylindrical shape.
  • the release knob 19 protrudes from the front end portion SA of the operation portion S.
  • the driver pushes the release knob 19
  • the release rod 35 moves to the pole 37 side, and the pole 37 moves in the clockwise direction of FIGS. 2 and 3, and the pawl portion 37C of the pole 37 is ratchet. Since it is separated from the 39 tooth portions 39B, the driver can rotate the lever body 15.
  • component parts such as the release rod 35, the release knob 19, the compression coil spring 31 and the like are arranged between the first half 25 and the second half 27 and assembled.
  • the first half 25 constituting the right portion of the lever body 15 is arranged on the workbench so that the left side surface (inner surface) of the first half 25 faces upward. Further, the compression coil spring 31 is inserted into the release rod 35 from the mounting protrusion 35A side.
  • the release rod 35 and the release knob 19 are respectively arranged at predetermined positions on the first half 25 arranged on the work table.
  • the first knob member 32 constituting the release knob 19 is located at the front end portion 25F of the first half 25, and the housing portion 32A on the side surface portion of the first knob member 32 is upward (FIG. 3). It is arranged in an open state toward the middle (left side).
  • the release rod 35 in a state where the compression coil spring 31 is inserted is stacked from above (left side in FIG. 3), and the release rod 35 is disposed at a predetermined position of the first half 25.
  • the mounting protrusion 35 ⁇ / b> A of the release rod 35 is locked to the housing portion 32 ⁇ / b> A of the first knob member 32 disposed on the first half 25.
  • the second knob member 33 constituting the release knob 19 is engaged with the accommodating portion 32A of the first knob member 32 from above (left side in FIG. 3). Thereby, the release knob 19 composed of the first knob member 32 and the second knob member 33 is assembled.
  • a compression coil spring 31 that is inserted through the release rod 35 is disposed on the first half 25.
  • the operator attaches the first end portion of the compression coil spring 31 to the spring receiving portion 33A of the second knob member 33 from above the first half body 25 arranged on the work table, By locking the second end of the compression coil spring 31 to the locking claw 41, the compression coil spring 31 is disposed in the first half 25 in a slightly compressed state.
  • the compression coil spring 31 is disposed between the spring receiving portion 33 ⁇ / b> A of the second knob member 33 and the locking claw 41 of the first half 25. Therefore, the compression coil spring 31 exerts a restoring force on the release knob 19 by being positioned between the spring receiving portion 33A of the second knob member 33 and the locking claw 41 of the first half 25.
  • the second half 27 is disposed so as to be laminated from above (left side in FIG. 3).
  • components such as the release rod 35 can be arranged inside the first half 25 and the second half 27.
  • the second half 27 is in a state where the right side surface (inner surface) is directed downward (right side in FIG. 3) with respect to the release rod 35 and the like disposed on the first half 25. Laminated.
  • the pole 37, the sector 13 to which the ratchet 39 is fixed, and the like are arranged before the second half 27 is stacked on the first half 25.
  • the arrangement of these members may be before the second half 27 is laminated, and may be before the release rod 35, the release knob 19, and the compression coil spring 31, or the release rod 35, the release knob 19, and the compression. It may be after the coil spring 31 is arranged.
  • the compression coil spring 31 includes a first end portion 31L, a second end portion 31R, and a central portion 31C.
  • the first end portion 31L and the second end portion 31R are closely wound with the winding 43 wound around without a gap.
  • the first end portion 31L may be referred to as a first contact winding end portion 31L
  • the second end portion 31R may be referred to as a second contact winding end portion 31R.
  • windings 43 are wound at intervals W in a state where no load is applied to the compression coil spring 31 (hereinafter also referred to as “non-compressed state”).
  • the symbol L represents the natural length of the compression coil spring 31, that is, the length of the compression coil spring 31 in an uncompressed state.
  • the symbol LL represents the length of the first end portion 31L, that is, the length of the first tightly wound end portion 31L.
  • the symbol LR represents the length of the second end portion 31R, that is, the length of the second closely wound end portion 31R. Note that the lengths LL and LR of the tightly wound end portions 31L and 31R are constant regardless of whether or not the compression coil spring 31 is in an uncompressed state.
  • the symbol X is a value (length) obtained by subtracting the length LL of the first contact winding end portion 31L from the natural length L of the compression coil spring 31, in other words, the length LR of the second contact winding end portion 31R and the length LR. This is a value (length) obtained by adding the length of the central portion 31C in the compressed state.
  • the symbol Y is a value (length) obtained by subtracting the length LR of the second contact winding end portion 31R from the natural length L of the compression coil spring 31. In other words, the length Y of the first contact winding end portion 31L is not equal to the length LL. This is a value (length) obtained by adding the central portion 31C in a compressed state.
  • the operation portion S has a substantially cylindrical shape by overlapping the front end portion 25 ⁇ / b> F of the first half body 25 and the front end portion 27 ⁇ / b> F of the second half body 27. Is formed.
  • the grip member 17 is fitted to the substantially cylindrical structure in which the front end portion 25F of the first half body 25 and the front end portion 27F of the second half body 27 are overlapped. It is worn.
  • a symbol M is a cylindrical shaft of the operation unit S.
  • 1st knob member 32 which constitutes release knob 19 protrudes from front end part SA ahead of cylindrical axis M of operation part S.
  • a recess 32 ⁇ / b> B is formed in the housing portion 32 ⁇ / b> A of the first knob member 32.
  • An attachment projection 35A of the release rod 35 is locked to the recess 32B.
  • the spring receiving portion 33A of the second knob member 33 constituting the release knob 19 is inherent in the operation portion S, and the first end portion 31L of the compression coil spring 31 is attached to the first end portion 31L of the compression coil spring 31. keeping.
  • the second end portion 31 ⁇ / b> R of the compression coil spring 31 is locked by a locking claw 41.
  • the release knob 19 is urged outward of the operation portion S by urging the second knob member 33 constituting the release knob 19 to move the release knob 19 to the front end SA of the operation portion S. It protrudes from.
  • the direction in which the compression coil spring 31 urges the release knob 19 (hereinafter referred to as “the urging direction of the compression coil spring 31”) substantially coincides with the forward direction of the cylindrical shaft M of the operation portion S.
  • the locking claw 41 is formed inside the operation portion S by cutting and raising the flat portion of the front end portion 25F of the first half body 25.
  • the locking claw 41 is composed of an upright portion 41A that rises from the plane of the front end portion 25F of the first half body 25 and a straight portion 41B that extends from the upright portion 41A, and is substantially L-shaped.
  • the straight portion 41 ⁇ / b> B is formed along the direction of the cylindrical axis M of the operation unit S, and is in a positional relationship substantially parallel to the cylindrical axis M of the operation unit S.
  • the length 41L of the straight portion 41B is longer than the interval W between the windings 43 of the compression coil spring 31 in an uncompressed state.
  • the value obtained by adding the length L2 of the compression coil spring 31 during the maximum pushing operation to the amount of deflection ⁇ 2 generated during the maximum pushing operation is assembling. It becomes the length L1 of the compression coil spring 31 at the time.
  • Symbol ⁇ 3 is the amount of bending at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31, and is a value obtained by adding the amount of bending ⁇ 1 generated at the time of assembly and the amount of bending ⁇ 2 generated at the time of the maximum pushing operation. .
  • the lengths LL and LR of the tightly wound end portions 31L and 31R of the compression coil spring 31 are longer than the deflection amount ⁇ 3 at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31.
  • the front end portion SA is an example of “the end portion of the operation portion in the cylindrical axis direction”.
  • the first tightly wound end portion 31L is an example of the “other end portion” and the “closely wound end portion”.
  • the second closely wound end portion 31R is an example of “one end portion” and “closely wound end portion”.
  • the forward direction of the cylindrical axis M of the operation unit S is an example of “the urging direction of the compression coil spring”.
  • the amount of bending ⁇ 3 at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31 is “the amount of change when the compression coil spring is compressed by the release knob being pushed in the direction opposite to the biasing direction of the compression coil spring”. It is an example.
  • the second tightly wound end portion 31R of the compression coil spring 31 is obtained by bringing the winding 43 of the compression coil spring 31 into close contact with each other. Therefore, when the second contact winding end 31R of the compression coil spring 31 is locked by the locking claw 41, the compression coil spring 31 is locked to the locking claw 41 on the side surface of the second contact winding end 31R. There is nothing.
  • the central portion 31C of the compression coil spring 31 is formed by winding the non-compressed winding 43 at the interval W, and thus is locked to the locking claw 41 on the side surface of the central portion 31C of the compression coil spring 31. Assembling defects may occur.
  • the length LR of the second closely wound end portion 31R of the compression coil spring 31 is longer than the deflection amount ⁇ 3 at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31. Therefore, when the assembly failure of the compression coil spring 31 as described above occurs, the first contact winding end portion 31L of the compression coil spring 31 is separated from the spring receiving portion 33A at least when the release knob 19 is not pushed. For this reason, the release knob 19 is not biased outward of the operation unit S.
  • the inspector checks whether the release knob 19 is urged outward of the operation portion S, so that the compression coil spring 31 is engaged between the windings 43. It is possible for an inspector to easily find an assembly failure that is locked to the pawl 41.
  • the locking claw 41 includes the standing portion 41A and the straight portion 41B, and the locking claw 41 is substantially L-shaped. It is difficult for the locking claw 41 to enter between the windings 43 of the central portion 31C existing other than 31L and 31R.
  • the first half 25 constituting the right side portion of the lever main body 15 is placed on the left side of the work table. It arrange
  • the locking claw 41 is obliquely cut and raised from the left side surface (inner surface) of the first half 25, the tip of the locking claw 41 is inclined upward on the work table. Therefore, when the release rod 35 is stacked on the left side surface (inner surface) of the first half body 25 from above the first half body 25, the latching claw is interposed between the windings 43 of the compression coil spring 31. Assembling defects such as 41 are likely to occur.
  • the straight portion 41B that is the tip portion of the locking claw 41 is along the direction of the cylindrical axis M of the operation portion S, that is, the plane of the left side surface (inner surface) of the first half body 25. It is formed along the part. Accordingly, since the tip end portion of the locking claw 41 is oriented in the lateral direction perpendicular to the upper side on the work table, the release rod 35 is placed on the left side of the first half 25 from above the first half 25. When laminating on the surface (inner surface), it is difficult to cause an assembly failure such that the locking claw 41 enters between the windings 43 of the compression coil spring 31.
  • the length 41L of the straight portion 41B of the locking claw 41 is longer than the interval W of the winding 43 when the compression coil spring 31 is not compressed. 41 does not enter between the windings 43 of the central portion 31 ⁇ / b> C of the compression coil spring 31.
  • the first end portion 31L and the second end portion 31R of the compression coil spring 31 are tightly wound end portions, and the directionality of the compression coil spring 31 is lost, so that the compression coil spring 31 is locked. Workability at the time of assembling to the claw 41 is improved. That is, as in the present embodiment, after the compression coil spring 31 is inserted into the release rod 35 with the second tightly wound end portion 31R of the compression coil spring 31 facing the connecting projection 35B side of the release rod 35, the compression is performed. The second contact winding end 31R of the coil spring 31 may be locked to the locking claw 41. Conversely, the first contact winding end 31L of the compression coil spring 31 faces the connecting projection 35B side of the release rod 35. After the compression coil spring 31 is inserted into the release rod 35 in such a state, the first close winding end 31L of the compression coil spring 31 may be locked to the locking claw 41.
  • the lengths LL and LR of the tightly wound end portions 31L and 31R of the compression coil spring 31 may be the same or different.
  • the compression coil spring 31 may be one in which the winding 43 is wound at the interval W in a non-compressed state except for the second tightly wound end portion 31R, or other than the first tightly wound end portion 31L. What wound the winding 43 by the space
  • interval W may be used. However, in these cases, the second tightly wound end portion 31R or the first tightly wound end portion 31L is assembled so as to be locked to the locking claw 41.

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  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Springs (AREA)
  • Mechanical Control Devices (AREA)

Abstract

The present invention provides a parking brake lever device in which an assembly defect, such as a compression coil spring being locked to a locking pawl between coil windings, can be easily found by an inspector. In the parking brake lever device, a compression coil spring 31 is assembled to a spring receiving part 33A and a locking pawl 41 inside an operating section S that has a roughly cylindrical shape, thereby urging a release knob 19 to the outside of the operation section S. The length of a second tightly wound end portion of the compression coil spring 31 locked to the locking pawl 41 is longer than a deflection amount of the compression coil spring 31 during a maximum pressing operation of the release knob 19 based upon the natural length of the compression coil spring 31.

Description

パーキングブレーキレバー装置Parking brake lever device
　本発明は、レリーズノブを圧縮コイルバネで付勢したパーキングブレーキレバー装置に関するものである。 The present invention relates to a parking brake lever device in which a release knob is urged by a compression coil spring.
　従来より、レリーズノブを圧縮コイルバネで付勢したパーキングブレーキレバー装置に関する技術が種々提案されている。例えば、下記特許文献１に記載されたパーキングブレーキ装置においては、セクタは、中心位置をＯ１とする扇状の外周係合歯を有し、車体に固定されている。このセクタには、前記中心Ｏ１に配置した回転軸を中心として、回動自在な操作レバーが設けられている。 Conventionally, various technologies related to a parking brake lever device in which a release knob is urged by a compression coil spring have been proposed. For example, in the parking brake device described in Patent Document 1 below, the sector has a fan-shaped outer peripheral engagement tooth whose center position is O1, and is fixed to the vehicle body. This sector is provided with an operation lever that is rotatable about a rotation axis arranged at the center O1.
　この操作レバーは、中心Ｏ１の右端の一端にブレーキ作動ケーブルが接続され、この操作レバーの回動によってケーブルを引っ張ることで、パーキングブレーキ本体が作動するようになっている。 This operation lever has a brake operating cable connected to one end of the right end of the center O1, and the parking brake body is operated by pulling the cable by the rotation of the operating lever.
　また、操作レバーの中心Ｏ１の左側の一端は、斜め上方に傾斜してその端部が水平に延在形成された形状となっていて、その水平端部のうち筒状に形成された水平筒部にグリップを嵌入して支持するようになっている。 Further, one end of the left side of the center O1 of the operating lever is inclined obliquely upward and has an end portion extending horizontally, and a horizontal cylinder formed in a cylindrical shape among the horizontal end portions. A grip is inserted into the part and supported.
また、前記グリップの端部には、押動可能な操作ノブが出没自在に配置されており、この操作ノブの背面と、前記操作レバーの水平筒部の中間部に形成したストッパとの間には、第１のスプリングが配置されていて、操作ノブはこの第１のスプリングによって、突出方向に付勢されている。 Further, a pushable operation knob is disposed at the end of the grip so as to be able to protrude and retract, and between the back of the operation knob and a stopper formed at an intermediate portion of the horizontal cylinder portion of the operation lever. The first spring is disposed, and the operation knob is urged in the protruding direction by the first spring.
実開平７－９６７１号公報Japanese Utility Model Publication No. 7-9671
　しかしながら、第１のスプリングが巻き線間でストッパに係止されるような組付不良が発生しても、パーキングブレーキ装置の組付完了後に操作ノブが第１のスプリングによって付勢状態にあれば、そのような第１のスプリングの組付不良をパーキングブレーキ装置の分解なしで見つけることは困難であった。 However, even if the assembly failure occurs such that the first spring is locked to the stopper between the windings, if the operation knob is biased by the first spring after the assembly of the parking brake device is completed. It has been difficult to find such a first spring assembly failure without disassembling the parking brake device.
　そこで、本発明は、上述した点を鑑みてなされたものであり、圧縮コイルバネが巻き線間で係止爪に係止されるような組付不良を検査員により容易に見つけ出すことが可能なパーキングブレーキレバー装置を提供することを課題とする。 Accordingly, the present invention has been made in view of the above-described points, and is a parking that allows an inspector to easily find an assembly failure in which a compression coil spring is locked by a locking claw between windings. It is an object to provide a brake lever device.
　この課題を解決するためになされた請求項１に記載のパーキングブレーキレバー装置は、略円筒形状の操作部と、操作部の円筒軸方向の端部から突出するレリーズノブと、レリーズノブに設けられ、操作部の内側に位置するバネ受部と、操作部の内側に設けられた係止爪と、一端部が係止爪に係止されると共に他端部がバネ受部で保持されることにより、レリーズノブを操作部の外方へ付勢する圧縮コイルバネと、を備え、圧縮コイルバネの一端部は、圧縮コイルバネの巻き線が互いに密着する密着巻き端部であり、密着巻き端部の長さは、レリーズノブが圧縮コイルバネの付勢方向とは反対方向へ押込み操作されて圧縮コイルバネが圧縮変化した際の変化量よりも長いことを特徴とする。 The parking brake lever device according to claim 1, which has been made to solve this problem, is provided in a substantially cylindrical operation portion, a release knob protruding from an end portion of the operation portion in the cylindrical axis direction, and a release knob. A spring receiving part located inside the part, a locking claw provided inside the operation part, one end is locked to the locking claw and the other end is held by the spring receiving part, A compression coil spring that urges the release knob outward of the operation portion, and one end portion of the compression coil spring is a close winding end portion where the windings of the compression coil spring are in close contact with each other, and the length of the close winding end portion is The release knob is pushed in a direction opposite to the urging direction of the compression coil spring and is longer than the amount of change when the compression coil spring undergoes compression change.
　尚、圧縮コイルバネが圧縮変化した際の変化量とは、非圧縮状態にある圧縮コイルバネの自然長を基準にする総たわみ量を言う。 The amount of change when the compression coil spring undergoes compression changes refers to the total amount of deflection based on the natural length of the compression coil spring in an uncompressed state.
　請求項２に記載のパーキングブレーキレバー装置は、請求項１に記載のパーキングブレーキレバー装置であって、係止爪は、レバー本体の内側面から立ち上がった起立部と、起立部から延設され、操作部の円筒軸方向に沿ったストレート部と、を備えることを特徴とする。 The parking brake lever device according to claim 2 is the parking brake lever device according to claim 1, wherein the latching claw extends from the upright portion, the upright portion rising from the inner side surface of the lever body, And a straight portion along the cylindrical axis direction of the operation portion.
　請求項３に記載のパーキングブレーキレバー装置は、請求項２に記載のパーキングブレーキレバー装置であって、係止爪のストレート部の長さは、圧縮コイルバネの非圧縮状態での巻き線の間隔よりも長いことを特徴とする。 The parking brake lever device according to claim 3 is the parking brake lever device according to claim 2, wherein the length of the straight portion of the locking claw is determined by the winding interval in the non-compressed state of the compression coil spring. It is also characterized by its long length.
　請求項４に記載のパーキングブレーキレバー装置は、請求項１乃至請求項３のいずれか一つに記載のパーキングブレーキレバー装置であって、圧縮コイルバネの他端部は、密着巻き端部であることを特徴とする。 The parking brake lever device according to claim 4 is the parking brake lever device according to any one of claims 1 to 3, wherein the other end portion of the compression coil spring is a tightly wound end portion. It is characterized by.
　請求項１に記載のパーキングブレーキレバー装置において、圧縮コイルバネの一端部は、圧縮コイルバネの巻き線を互いに密着させた密着巻き端部であることから、圧縮コイルバネが一端部の側面で、つまり、密着巻き端部の側面で係止爪に係止されることは無い。しかしながら、圧縮コイルバネが密着巻き端部（一端部）以外に存在する巻き線間で係止爪に係止されるような組付不良は発生することがある。 2. The parking brake lever device according to claim 1, wherein the one end portion of the compression coil spring is a tightly wound end portion in which the windings of the compression coil spring are brought into close contact with each other. It is not locked to the locking claw on the side surface of the winding end. However, an assembly failure may occur in which the compression coil spring is locked by the locking claws between the windings other than the tightly wound end portion (one end portion).
　但し、圧縮コイルバネの密着巻き端部（一端部）の長さは、レリーズノブが圧縮コイルバネの付勢方向とは反対方向へ押込み操作されることにより圧縮コイルバネが圧縮変化した際の変化量よりも長い。そのため、上述したような圧縮コイルバネの組付不良が発生すると、少なくともレリーズノブが押込み操作されていない状態では、圧縮コイルバネの他端部がバネ受部から離間していることから、レリーズノブが操作部の外方へ付勢されなくなる。 However, the length of the tightly wound end portion (one end portion) of the compression coil spring is longer than the amount of change when the compression coil spring is compressed and changed by pushing the release knob in the direction opposite to the biasing direction of the compression coil spring. . Therefore, when the above-described defective assembly of the compression coil spring occurs, at least when the release knob is not pushed in, the other end of the compression coil spring is separated from the spring receiving portion. It will not be biased outward.
　従って、請求項１に記載のパーキングブレーキレバー装置では、レリーズノブが操作部の外方へ付勢されているか否かを検査員が確認することにより、圧縮コイルバネが巻き線間で係止爪に係止されるような組付不良を検査員が容易に見つけ出すことが可能である。 Therefore, in the parking brake lever device according to the first aspect, the inspector confirms whether or not the release knob is biased outward of the operation portion, so that the compression coil spring is engaged with the locking claw between the windings. It is possible for an inspector to easily find an assembly failure that can be stopped.
　請求項２に記載のパーキングブレーキレバー装置では、係止爪が起立部及びストレート部を備えており、係止爪が略Ｌ字状であるので、圧縮コイルバネの密着巻き端部（一端部）以外に存在する巻き線間に係止爪が入り難い。 In the parking brake lever device according to claim 2, since the locking claw includes an upright portion and a straight portion, and the locking claw is substantially L-shaped, other than the tightly wound end portion (one end portion) of the compression coil spring. It is difficult for the locking claws to enter between the windings present in the wire.
　請求項３に記載のパーキングブレーキレバー装置では、係止爪のストレート部の長さが圧縮コイルバネの非圧縮状態での巻き線の間隔よりも長いので、係止爪が圧縮コイルバネの巻き線間に入らない。 In the parking brake lever device according to claim 3, since the length of the straight portion of the locking claw is longer than the winding interval in the non-compressed state of the compression coil spring, the locking claw is between the windings of the compression coil spring. not enter.
　請求項４に記載のパーキングブレーキレバー装置では、圧縮コイルバネの一端部及び他端部が密着巻き端部であり、圧縮コイルバネの方向性が無くなるので、圧縮コイルバネを係止爪に組み付ける際の作業性が向上する。 In the parking brake lever device according to claim 4, since one end portion and the other end portion of the compression coil spring are tightly wound end portions, and the directionality of the compression coil spring is lost, workability when the compression coil spring is assembled to the locking claw. Will improve.
本実施形態のパーキングブレーキレバー装置を表した側面図である。It is a side view showing the parking brake lever device of this embodiment. 同パーキングブレーキレバー装置を表した分解斜視図である。It is a disassembled perspective view showing the parking brake lever device. 同パーキングブレーキレバー装置の構成要素の一部を抜粋して表した分解斜視図である。It is the disassembled perspective view which extracted and represented a part of component of the parking brake lever apparatus. 圧縮コイルバネを表した側面図である。It is a side view showing a compression coil spring. 同パーキングブレーキレバー装置を図１の線Ａ－Ａで切断して表した断面図である。FIG. 2 is a cross-sectional view of the parking brake lever device cut along line AA in FIG. 1. 同パーキングブレーキレバー装置を図１の線Ａ－Ａで切断して表した断面図である。FIG. 2 is a cross-sectional view of the parking brake lever device cut along line AA in FIG. 1. 同圧縮コイルバネの自然長、撓み量、及び密着巻き端部の長さ関係を表した図である。It is a figure showing the natural length of the same compression coil spring, the amount of bending, and the length relationship of a tightly wound end part. 同圧縮コイルバネが湾曲した場合の同パーキングブレーキレバー装置を図１の線Ａ－Ａで切断して表した断面図である。FIG. 2 is a cross-sectional view of the parking brake lever device cut along line AA in FIG. 1 when the compression coil spring is bent.
　以下、本発明に係るパーキングブレーキレバー装置について、具体化した本実施形態に基づき、図面を参照しつつ説明する。尚、当該パーキングブレーキ装置の前後方向、上下方向、及び左右方向は、図面に表した前後方向、上下方向、及び左右方向で定義して説明する。また、当該パーキングブレーキ装置に関し、本発明を特定する事項を除く公知技術については、詳細な説明を省略することがある。 Hereinafter, a parking brake lever device according to the present invention will be described with reference to the drawings based on the embodiment of the present invention. In addition, the front-back direction, the up-down direction, and the left-right direction of the parking brake device are defined and described as the front-rear direction, the up-down direction, and the left-right direction shown in the drawings. In addition, with respect to the parking brake device, a detailed description of a known technique excluding matters specifying the present invention may be omitted.
［１．パーキングブレーキレバー装置の概要］
　図１に表すように、本実施形態のパーキングブレーキレバー装置１１は、セクタ１３、レバー本体１５、グリップ部材１７、レリーズノブ１９、ブレーキケーブル２１、イコライザ装置２３、及びパーキングブレーキスイッチＢＳ等を備えている。 [1. Overview of parking brake lever device]
As shown in FIG. 1, the parking brake lever device 11 of the present embodiment includes a sector 13, a lever body 15, a grip member 17, a release knob 19, a brake cable 21, an equalizer device 23, a parking brake switch BS, and the like. .
　セクタ１３は、略平板形状の部材であり、車両のフロア（図示せず）に略垂直に固定されるものである。セクタ１３には、レバー本体１５が支持ピンＰ１，Ｐ２を介して回動可能に支持されている。レバー本体１５の前方端部は、略円筒形状に形成されており、グリップ部材１７が嵌着されている。レバー本体１５の前方端部及びグリップ部材１７は、操作部Ｓを構成し、レバー本体１５が回動操作される際に運転者によって把持される。操作部Ｓの前方端部ＳＡには、レリーズノブ１９が突出して配設されている。 The sector 13 is a substantially flat plate-like member, and is fixed substantially perpendicularly to a vehicle floor (not shown). A lever body 15 is rotatably supported by the sector 13 via support pins P1 and P2. The front end portion of the lever main body 15 is formed in a substantially cylindrical shape, and a grip member 17 is fitted thereto. The front end portion of the lever main body 15 and the grip member 17 constitute an operation unit S and are gripped by the driver when the lever main body 15 is rotated. A release knob 19 protrudes from the front end SA of the operation unit S.
　ブレーキケーブル２１の前方端部は、後述する図２に表されたケーブルガイド２９を介して、レバー本体１５に連結されている。ブレーキケーブル２１の後方端部は、イコライザ装置２３に連結されている。これにより、ブレーキケーブル２１は、レバー本体１５の回動操作力をイコライザ装置２３に伝達することができる。イコライザ装置２３は、レバー本体１５の回動操作力を均等化して車両の左右のパーキングブレーキ（図示せず）に伝達するものである。つまり、運転者は、レバー本体１５を図１の時計回り又は反時計回りに回動操作することにより、車両の左右のパーキングブレーキ（図示せず）を作動又は解除させることができる。 The front end of the brake cable 21 is connected to the lever body 15 via a cable guide 29 shown in FIG. The rear end of the brake cable 21 is connected to the equalizer device 23. Thereby, the brake cable 21 can transmit the turning operation force of the lever body 15 to the equalizer device 23. The equalizer device 23 equalizes the rotational operation force of the lever body 15 and transmits it to the left and right parking brakes (not shown) of the vehicle. That is, the driver can operate or release the left and right parking brakes (not shown) of the vehicle by rotating the lever body 15 clockwise or counterclockwise in FIG.
　パーキングブレーキスイッチＢＳは、接点のオン・オフが切り換わることにより、車両の左右のパーキングブレーキ（図示せず）が作動状態か否かを検出するものである。尚、符号Ｐ３，Ｐ４は、支持ピンである。 The parking brake switch BS detects whether the left and right parking brakes (not shown) of the vehicle are in an operating state by switching on and off of the contacts. Reference numerals P3 and P4 are support pins.
　図２及び図３に表すように、本実施形態のパーキングブレーキレバー装置１１は、上述したセクタ１３、グリップ部材１７、ブレーキケーブル２１、及びパーキングブレーキスイッチＢＳに加えて、合成樹脂部材２３Ａ、イコライザ本体２３Ｂ、第１半割体２５、第２半割体２７、及びケーブルガイド２９を備えている。 As shown in FIGS. 2 and 3, the parking brake lever device 11 of the present embodiment includes a synthetic resin member 23 </ b> A, an equalizer main body in addition to the sector 13, the grip member 17, the brake cable 21, and the parking brake switch BS described above. 23B, a first half 25, a second half 27, and a cable guide 29.
合成樹脂部材２３Ａ及びイコライザ本体２３Ｂは、上述したイコライザ装置２３を構成するものである。合成樹脂部材２３Ａは、イコライザ本体２３Ｂ内に組み付けられる。イコライザ本体２３Ｂには、ブレーキケーブル２１の後方端部が合成樹脂部材２３Ａを介して挿入される。ブレーキケーブル２１の後方端部には、係止部材２１Ａが設けられている。ブレーキケーブル２１の係止部材２１Ａがイコライザ本体２３Ｂに係り合って止まることにより、ブレーキケーブル２１の後方端部がイコライザ装置２３に連結される。 The synthetic resin member 23A and the equalizer main body 23B constitute the equalizer device 23 described above. The synthetic resin member 23A is assembled in the equalizer main body 23B. The rear end of the brake cable 21 is inserted into the equalizer main body 23B via the synthetic resin member 23A. A locking member 21 </ b> A is provided at the rear end of the brake cable 21. When the locking member 21A of the brake cable 21 is engaged with the equalizer main body 23B and stopped, the rear end portion of the brake cable 21 is connected to the equalizer device 23.
　第１半割体２５及び第２半割体２７は、上述したレバー本体１５を構成するものである。第１半割体２５には、ピン穴２５Ａ，２５Ｂ，２５Ｃ，２５Ｄ及びフランジ部２５Ｅが設けられている。第２半割体２７には、ピン穴２７Ａ，２７Ｂ，２７Ｃ，２７Ｄ及びフランジ部２７Ｅが設けられている。 The first half 25 and the second half 27 constitute the lever body 15 described above. The first half 25 is provided with pin holes 25A, 25B, 25C, 25D and a flange portion 25E. The second half 27 is provided with pin holes 27A, 27B, 27C, 27D and a flange portion 27E.
　ケーブルガイド２９は、その左側面（内面）にケーブル溝２９Ａが設けられている。ケーブルガイド２９の左側面（内面）は、第１半割体２５の右側面（外面）に重ね合わされた状態で、第１半割体２５の右側面（外面）に溶接される。この溶接により、ケーブルガイド２９の前方下端部にはケーブル溝２９Ａと連通する第１開口部が形成されると共に、ケーブルガイド２９の前方上端部にはケーブル溝２９Ａと連通する第２開口部が形成される。ケーブルガイド２９の前方下端部に形成された第１開口部には、ブレーキケーブル２１の前方端部に対してかしめ部材２１Ｂを介して継ぎ合わされたボルト軸２１Ｃが差し入れられる。ボルト軸２１Ｃは、ケーブル溝２９Ａ内を通り、ケーブルガイド２９の前方上端部に形成された第２開口部から突き出される。ボルト軸２１Ｃの突出部分には、ナット部材２１Ｄが螺嵌される。これにより、ブレーキケーブル２１の前方端部がレバー本体１５に連結される。 The cable guide 29 is provided with a cable groove 29A on the left side surface (inner surface). The left side surface (inner surface) of the cable guide 29 is welded to the right side surface (outer surface) of the first half body 25 while being superimposed on the right side surface (outer surface) of the first half body 25. By this welding, a first opening that communicates with the cable groove 29A is formed at the front lower end of the cable guide 29, and a second opening that communicates with the cable groove 29A is formed at the front upper end of the cable guide 29. Is done. A bolt shaft 21 </ b> C joined to the front end portion of the brake cable 21 via the caulking member 21 </ b> B is inserted into the first opening portion formed at the front lower end portion of the cable guide 29. The bolt shaft 21 </ b> C passes through the cable groove 29 </ b> A and protrudes from a second opening formed at the front upper end of the cable guide 29. A nut member 21D is screwed into the protruding portion of the bolt shaft 21C. As a result, the front end of the brake cable 21 is connected to the lever body 15.
　さらに、本実施形態のパーキングブレーキレバー装置１１は、圧縮コイルバネ３１、第１ノブ部材３２、第２ノブ部材３３、レリーズロッド３５、ポール３７、及びラチェット３９を備えている。 Further, the parking brake lever device 11 of the present embodiment includes a compression coil spring 31, a first knob member 32, a second knob member 33, a release rod 35, a pole 37, and a ratchet 39.
　圧縮コイルバネ３１は、上述したレリーズノブ１９を前方に付勢させるものである。かかるレリーズノブ１９は、第１ノブ部材３２及び第２ノブ部材３３で構成される。尚、圧縮コイルバネ３１、第１ノブ部材３２、第２ノブ部材３３、レリーズロッド３５、及びポール３７の組付等については、後述する。ラチェット３９は、略平板形状の部材であり、突起部３９Ａ及び歯部３９Ｂが設けられている。 The compression coil spring 31 biases the release knob 19 described above forward. The release knob 19 includes a first knob member 32 and a second knob member 33. The assembly of the compression coil spring 31, the first knob member 32, the second knob member 33, the release rod 35, and the pole 37 will be described later. The ratchet 39 is a substantially flat plate-like member, and is provided with a protruding portion 39A and a tooth portion 39B.
　セクタ１３には、固定用ピン穴１３Ａ，１３Ｂ、切込部１３Ｃ、回動用ピン穴１３Ｄ、及び案内用ピン穴１３Ｅが設けられている。固定用ピン穴１３Ａ，１３Ｂを介してネジ部材Ｎ１，Ｎ２がパーキングブレーキスイッチＢＳにねじ込まれることにより、パーキングブレーキスイッチＢＳがセクタ１３に固定される。切込部１３Ｃには、ラチェット３９の突起部３９Ａがかしめ加工される。これにより、ラチェット３９がセクタ１３に固定される。 The sector 13 is provided with fixing pin holes 13A and 13B, a notch 13C, a rotation pin hole 13D, and a guide pin hole 13E. When the screw members N1 and N2 are screwed into the parking brake switch BS through the fixing pin holes 13A and 13B, the parking brake switch BS is fixed to the sector 13. A projection 39A of the ratchet 39 is caulked into the notch 13C. As a result, the ratchet 39 is fixed to the sector 13.
　回動用ピン穴１３Ｄには、支持ピンＰ１が嵌通される。支持ピンＰ１の右方端部は、第１半割体２５のピン穴２５Ａに通された状態で、第１半割体２５の右側面（外面）からかしめ加工される。支持ピンＰ１の左方端部は、第２半割体２７のピン穴２７Ａに通された状態で、第２半割体２７の左側面（外面）からかしめ加工される。 The support pin P1 is inserted into the rotation pin hole 13D. The right end portion of the support pin P <b> 1 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25 </ b> A of the first half body 25. The left end portion of the support pin P1 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27A of the second half body 27.
　案内用ピン穴１３Ｅは、回動用ピン穴１３Ｄを中心とした円弧の形状に形成されている。案内用ピン穴１３Ｅには、支持ピンＰ２が嵌通される。支持ピンＰ２の右方端部は、第１半割体２５のピン穴２５Ｂに通された状態で、第１半割体２５の右側面（外面）からかしめ加工される。支持ピンＰ２の左方端部は、第２半割体２７のピン穴２７Ｂに通された状態で、第２半割体２７の左側面（外面）からかしめ加工される。 The guide pin hole 13E is formed in an arc shape centering on the rotation pin hole 13D. The support pin P2 is inserted into the guide pin hole 13E. The right end portion of the support pin P2 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25B of the first half body 25. The left end portion of the support pin P <b> 2 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27 </ b> B of the second half body 27.
　このようにして、セクタ１３では、第１半割体２５及び第２半割体２７で構成されるレバー本体１５が、支持ピンＰ１，Ｐ２を介して回動可能に支持されている。尚、支持ピンＰ１は、レバー本体１５の回動軸として機能する。 In this way, in the sector 13, the lever main body 15 composed of the first half 25 and the second half 27 is rotatably supported via the support pins P1 and P2. Note that the support pin P <b> 1 functions as a rotation shaft of the lever body 15.
　さらに、第１半割体２５及び第２半割体２７で構成されるレバー本体１５では、ポール３７が支持ピンＰ３を介して回動可能に支持されている。そのために、ポール３７の略中央に設けられた回動用ピン穴３７Ａには、支持ピンＰ３が嵌通される。支持ピンＰ３の右方端部は、第１半割体２５のピン穴２５Ｃに通された状態で、第１半割体２５の右側面（外面）からかしめ加工される。支持ピンＰ３の左方端部は、第２半割体２７のピン穴２７Ｃに通された状態で、第２半割体２７の左側面（外面）からかしめ加工される。尚、支持ピンＰ３は、ポール３７の回動軸として機能する。 Furthermore, in the lever main body 15 composed of the first half body 25 and the second half body 27, a pole 37 is rotatably supported via a support pin P3. For this purpose, the support pin P <b> 3 is inserted into the rotation pin hole 37 </ b> A provided in the approximate center of the pole 37. The right end portion of the support pin P3 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25C of the first half body 25. The left end portion of the support pin P3 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27C of the second half body 27. The support pin P3 functions as a rotation axis of the pole 37.
　また、支持ピンＰ４によって、第１半割体２５及び第２半割体２７が一体化される。そのために、支持ピンＰ４の右方端部は、第１半割体２５のピン穴２５Ｄに通された状態で、第１半割体２５の右側面（外面）からかしめ加工される。支持ピンＰ４の左方端部は、第２半割体２７のピン穴２７Ｄに通された状態で、第２半割体２７の左側面（外面）からかしめ加工される。 Further, the first half 25 and the second half 27 are integrated by the support pin P4. Therefore, the right end portion of the support pin P4 is caulked from the right side surface (outer surface) of the first half body 25 while being passed through the pin hole 25D of the first half body 25. The left end portion of the support pin P4 is caulked from the left side surface (outer surface) of the second half body 27 while being passed through the pin hole 27D of the second half body 27.
　尚、支持ピンＰ１，Ｐ２，Ｐ３によっても、レバー本体１５を構成する第１半割体２５及び第２半割体２７が一体化される。 In addition, the 1st half body 25 and the 2nd half body 27 which comprise the lever main body 15 are also integrated by the support pins P1, P2, P3.
　このようにして、第１半割体２５及び第２半割体２７が一体化されることによって、第１半割体２５のフランジ部２５Ｅ及び第２半割体２７のフランジ部２７Ｅを一体化させると共に、セクタ１３、圧縮コイルバネ３１、第１ノブ部材３２、第２ノブ部材３３、レリーズロッド３５、ポール３７、及びラチェット３９をレバー本体１５に内在させている。 Thus, by integrating the first half 25 and the second half 27, the flange 25E of the first half 25 and the flange 27E of the second half 27 are integrated. In addition, the sector 13, the compression coil spring 31, the first knob member 32, the second knob member 33, the release rod 35, the pole 37, and the ratchet 39 are included in the lever body 15.
　一体化されたフランジ部２５Ｅ，２７Ｅは、レバー本体１５の回動に応じて、パーキングブレーキスイッチＢＳの接点に対して圧接又は離間することにより、その接点のオン・オフを切り換える。 The integrated flange portions 25E and 27E are turned on and off by contacting or separating the contact of the parking brake switch BS according to the rotation of the lever body 15.
　図３に表すように、第１ノブ部材３２には、収容部３２Ａが設けられている。収容部３２Ａには、第２ノブ部材３３が係着される。第２ノブ部材３３の後方側面には、バネ受部３３Ａが設けられている。レリーズロッド３５の前方端部には、取付突部３５Ａが設けられている。 As shown in FIG. 3, the first knob member 32 is provided with an accommodating portion 32A. A second knob member 33 is engaged with the accommodating portion 32A. A spring receiving portion 33 </ b> A is provided on the rear side surface of the second knob member 33. At the front end of the release rod 35, an attachment projection 35A is provided.
　レリーズロッド３５の後方端部には、連結突部３５Ｂが設けられている。ポール３７の上方端部には、連結用穴３７Ｂが設けられている。連結用穴３７Ｂには、レリーズロッド３５の連結突部３５Ｂが係入される。これにより、レリーズロッド３５の後方端部とポール３７の上方端部とが連結される。ポール３７の下方端部には、爪部３７Ｃが設けられている。爪部３７Ｃは、ラチェット３９の歯部３９Ｂと噛み合うものである。第１半割体２５の前方端部２５Ｆには、その平面部分が切り起こされることにより、略Ｌ字状の係止爪４１が設けられている。尚、係止爪４１の詳細については、後述する。 At the rear end of the release rod 35, a connecting projection 35B is provided. A connecting hole 37 </ b> B is provided at the upper end of the pole 37. The connecting projection 35B of the release rod 35 is engaged with the connecting hole 37B. Thereby, the rear end part of the release rod 35 and the upper end part of the pole 37 are connected. A claw portion 37 </ b> C is provided at the lower end portion of the pole 37. The claw portion 37C meshes with the tooth portion 39B of the ratchet 39. The front end portion 25F of the first half body 25 is provided with a substantially L-shaped locking claw 41 by cutting and raising the flat surface portion. The details of the locking claw 41 will be described later.
　圧縮コイルバネ３１は、レリーズロッド３５の前方端部からレリーズロッド３５に挿通される。レリーズロッド３５の前方端部は、その前方端部に設けられた取付突部３５Ａと共に、第１ノブ部材３２の収容部３２Ａに収容される。第１ノブ部材３２の収容部３２Ａ内では、レリーズロッド３５の取付突部３５Ａが係止される。さらに、第１ノブ部材３２の収容部３２Ａには、第２ノブ部材３３が係着される。これにより、レリーズロッド３５の前方端部は、第１ノブ部材３２及び第２ノブ部材３３で構成するレリーズノブ１９に連結される。 The compression coil spring 31 is inserted through the release rod 35 from the front end of the release rod 35. The front end portion of the release rod 35 is accommodated in the accommodating portion 32A of the first knob member 32 together with the attachment projection 35A provided at the front end portion. In the housing portion 32A of the first knob member 32, the mounting protrusion 35A of the release rod 35 is locked. Further, the second knob member 33 is engaged with the accommodating portion 32 </ b> A of the first knob member 32. Thereby, the front end portion of the release rod 35 is connected to the release knob 19 constituted by the first knob member 32 and the second knob member 33.
　圧縮コイルバネ３１の第１端部は、第２ノブ部材３３のバネ受部３３Ａに装着される。圧縮コイルバネ３１の第２端部は、第１半割体２５の係止爪４１に係止される。これにより、圧縮コイルバネ３１は、僅かに圧縮状態となり、復元力を発生させる。第１ノブ部材３２及び第２ノブ部材３３で構成するレリーズノブ１９は、圧縮コイルバネ３１の復元力で前方に付勢される。さらに、圧縮コイルバネ３１の復元力は、レリーズロッド３５を介して、ポール３７を図３の反時計回りの方向に付勢させるので、ポール３７の爪部３７Ｃをラチェット３９の歯部３９Ｂに噛み合わさせる。 The first end of the compression coil spring 31 is attached to the spring receiving portion 33 </ b> A of the second knob member 33. The second end of the compression coil spring 31 is locked to the locking claw 41 of the first half 25. Thereby, the compression coil spring 31 is slightly compressed and generates a restoring force. The release knob 19 constituted by the first knob member 32 and the second knob member 33 is urged forward by the restoring force of the compression coil spring 31. Further, the restoring force of the compression coil spring 31 urges the pole 37 in the counterclockwise direction of FIG. 3 via the release rod 35, so that the pawl portion 37C of the pole 37 is engaged with the tooth portion 39B of the ratchet 39. .
　このような状態で第１半割体２５及び第２半割体２７が一体化されると、第１半割体２５の前方端部２５Ｆと第２半割体２７の前方端部２７Ｆとが重ね合わされることにより、レバー本体１５の前方端部が略円筒形状に形成される。さらに、レバー本体１５の前方端部にグリップ部材１７が嵌着されると、操作部Ｓの前方端部ＳＡからレリーズノブ１９が突出する。運転者がレリーズノブ１９の押込み操作を行うと、レリーズロッド３５がポール３７側に移動すると共に、ポール３７が図２及び図３の時計回りの方向に移動して、ポール３７の爪部３７Ｃがラチェット３９の歯部３９Ｂから離間するので、レバー本体１５の回動操作を運転者が行うことができる。これに対して、運転者がレリーズノブ１９の押込み操作を解除すると、操作部Ｓの前方端部ＳＡからレリーズノブ１９が突出するに伴い、レリーズロッド３５がレリーズノブ１９側に移動すると共に、ポール３７が図２及び図３の反時計回りの方向に移動して、ポール３７の爪部３７Ｃがラチェット３９の歯部３９Ｂと噛み合うので、レバー本体１５の位置を保持させることができる。 When the first half 25 and the second half 27 are integrated in such a state, the front end 25F of the first half 25 and the front end 27F of the second half 27 are formed. By overlapping, the front end of the lever body 15 is formed in a substantially cylindrical shape. Further, when the grip member 17 is fitted to the front end portion of the lever body 15, the release knob 19 protrudes from the front end portion SA of the operation portion S. When the driver pushes the release knob 19, the release rod 35 moves to the pole 37 side, and the pole 37 moves in the clockwise direction of FIGS. 2 and 3, and the pawl portion 37C of the pole 37 is ratchet. Since it is separated from the 39 tooth portions 39B, the driver can rotate the lever body 15. On the other hand, when the driver releases the pushing operation of the release knob 19, as the release knob 19 protrudes from the front end SA of the operation portion S, the release rod 35 moves to the release knob 19 side, and the pole 37 is shown in FIG. 2 and the counterclockwise direction of FIG. 3 and the pawl portion 37C of the pole 37 meshes with the tooth portion 39B of the ratchet 39, so that the position of the lever body 15 can be held.
　次に、本実施形態のパーキングブレーキレバー装置１１の組立工程の一例について説明する。尚、以下の説明においては、第１半割体２５と、第２半割体２７との間に、レリーズロッド３５、レリーズノブ１９、圧縮コイルバネ３１等の構成部品を配置して組み立てるものとする。 Next, an example of an assembly process of the parking brake lever device 11 of this embodiment will be described. In the following description, component parts such as the release rod 35, the release knob 19, the compression coil spring 31 and the like are arranged between the first half 25 and the second half 27 and assembled.
　初めに、レバー本体１５の右側部分を構成する第１半割体２５を、第１半割体２５の左側面（内面）が上方に向くようにして、作業台上に配置する。また、レリーズロッド３５に、その取付突部３５Ａ側から圧縮コイルバネ３１を挿通する。 First, the first half 25 constituting the right portion of the lever body 15 is arranged on the workbench so that the left side surface (inner surface) of the first half 25 faces upward. Further, the compression coil spring 31 is inserted into the release rod 35 from the mounting protrusion 35A side.
　次に、作業台上に配置された第１半割体２５上の所定位置に、夫々、レリーズロッド３５及びレリーズノブ１９を配置する。具体的には、先ず、レリーズノブ１９を構成する第１ノブ部材３２が、第１半割体２５の前方端部２５Ｆにおいて、第１ノブ部材３２の側面部にある収容部３２Ａが上方（図３中、左側）に向かって開口した状態で配置される。次いで、圧縮コイルバネ３１が挿通された状態のレリーズロッド３５を上方（図３中、左側）から積層するようにして、当該第１半割体２５の所定位置にレリーズロッド３５を配置する。この時、レリーズロッド３５の取付突部３５Ａは、第１半割体２５上に配置された第１ノブ部材３２の収容部３２Ａに対して係止される。 Next, the release rod 35 and the release knob 19 are respectively arranged at predetermined positions on the first half 25 arranged on the work table. Specifically, first, the first knob member 32 constituting the release knob 19 is located at the front end portion 25F of the first half 25, and the housing portion 32A on the side surface portion of the first knob member 32 is upward (FIG. 3). It is arranged in an open state toward the middle (left side). Next, the release rod 35 in a state where the compression coil spring 31 is inserted is stacked from above (left side in FIG. 3), and the release rod 35 is disposed at a predetermined position of the first half 25. At this time, the mounting protrusion 35 </ b> A of the release rod 35 is locked to the housing portion 32 </ b> A of the first knob member 32 disposed on the first half 25.
　次いで、上方（図３中、左側）から第１ノブ部材３２の収容部３２Ａに対して、レリーズノブ１９を構成する第２ノブ部材３３が係着される。これにより、第１ノブ部材３２及び第２ノブ部材３３で構成されるレリーズノブ１９が組み立てられる。 Next, the second knob member 33 constituting the release knob 19 is engaged with the accommodating portion 32A of the first knob member 32 from above (left side in FIG. 3). Thereby, the release knob 19 composed of the first knob member 32 and the second knob member 33 is assembled.
　続いて、第１半割体２５上において、レリーズロッド３５に挿通された状態にある圧縮コイルバネ３１を配設する。具体的には、作業者は、作業台上に配置された第１半割体２５の上方から、圧縮コイルバネ３１の第１端部を第２ノブ部材３３のバネ受部３３Ａに装着すると共に、圧縮コイルバネ３１の第２端部を係止爪４１に係止することにより、圧縮コイルバネ３１を僅かに圧縮させた状態で第１半割体２５に配置する。このようにして、圧縮コイルバネ３１は、第２ノブ部材３３のバネ受部３３Ａと第１半割体２５の係止爪４１との間に配置される。従って、圧縮コイルバネ３１は、第２ノブ部材３３のバネ受部３３Ａと第１半割体２５の係止爪４１との間に位置することにより、レリーズノブ１９に対して復元力を作用させる。 Subsequently, a compression coil spring 31 that is inserted through the release rod 35 is disposed on the first half 25. Specifically, the operator attaches the first end portion of the compression coil spring 31 to the spring receiving portion 33A of the second knob member 33 from above the first half body 25 arranged on the work table, By locking the second end of the compression coil spring 31 to the locking claw 41, the compression coil spring 31 is disposed in the first half 25 in a slightly compressed state. Thus, the compression coil spring 31 is disposed between the spring receiving portion 33 </ b> A of the second knob member 33 and the locking claw 41 of the first half 25. Therefore, the compression coil spring 31 exerts a restoring force on the release knob 19 by being positioned between the spring receiving portion 33A of the second knob member 33 and the locking claw 41 of the first half 25.
　このようにして、第１半割体２５上に、レリーズロッド３５及びレリーズノブ１９等を配置した状態で、上方（図３中、左側）から第２半割体２７を積層するように配置する。これにより、当該パーキングブレーキレバー装置１１によれば、第１半割体２５と第２半割体２７の内部に、レリーズロッド３５等の構成部品を配置することができる。 Thus, with the release rod 35 and the release knob 19 disposed on the first half 25, the second half 27 is disposed so as to be laminated from above (left side in FIG. 3). Thereby, according to the parking brake lever device 11, components such as the release rod 35 can be arranged inside the first half 25 and the second half 27.
　この時、第２半割体２７は、第１半割体２５上に配置されたレリーズロッド３５等に対して、その右側面（内面）が下方（図３中、右側）を向いた状態で積層される。 At this time, the second half 27 is in a state where the right side surface (inner surface) is directed downward (right side in FIG. 3) with respect to the release rod 35 and the like disposed on the first half 25. Laminated.
　尚、上述の説明では省略したが、第１半割体２５上に第２半割体２７を積層する前に、ポール３７や、ラチェット３９が固定されたセクタ１３等を配置する。これらの部材の配置は、第２半割体２７を積層する前であればよく、レリーズロッド３５、レリーズノブ１９、圧縮コイルバネ３１の配置前であっても良いし、レリーズロッド３５、レリーズノブ１９、圧縮コイルバネ３１の配置後であっても良い。 Although omitted in the above description, the pole 37, the sector 13 to which the ratchet 39 is fixed, and the like are arranged before the second half 27 is stacked on the first half 25. The arrangement of these members may be before the second half 27 is laminated, and may be before the release rod 35, the release knob 19, and the compression coil spring 31, or the release rod 35, the release knob 19, and the compression. It may be after the coil spring 31 is arranged.
　第１半割体２５と第２半割体２７との間に、レリーズロッド３５、レリーズノブ１９をはじめとする各構成部品を配置した状態で、支持ピンＰ１，Ｐ２，Ｐ３，Ｐ４に対してかしめ加工を施すことによって、当該パーキングブレーキレバー装置１１の組立作業が完了する。 Caulking with respect to the support pins P1, P2, P3, and P4 in a state in which the components such as the release rod 35 and the release knob 19 are disposed between the first half 25 and the second half 27. By performing the processing, the assembly work of the parking brake lever device 11 is completed.
［２．圧縮コイルバネの構成等］
　次に、圧縮コイルバネ３１の構成について説明する。図４に表すように、圧縮コイルバネ３１は、第１端部３１Ｌ、第２端部３１Ｒ、及び中央部３１Ｃから構成されている。第１端部３１Ｌ及び第２端部３１Ｒは、巻き線４３が隙間なく巻かれた密着巻きになっている。以下、第１端部３１Ｌを第１密着巻き端部３１Ｌと言うことがあり、第２端部３１Ｒを第２密着巻き端部３１Ｒと言うことがある。中央部３１Ｃは、圧縮コイルバネ３１に荷重が作用していない状態（以下、「非圧縮状態」とも言う）において、巻き線４３が間隔Ｗで巻かれている。 [2. Configuration of compression coil spring]
Next, the configuration of the compression coil spring 31 will be described. As shown in FIG. 4, the compression coil spring 31 includes a first end portion 31L, a second end portion 31R, and a central portion 31C. The first end portion 31L and the second end portion 31R are closely wound with the winding 43 wound around without a gap. Hereinafter, the first end portion 31L may be referred to as a first contact winding end portion 31L, and the second end portion 31R may be referred to as a second contact winding end portion 31R. In the central portion 31C, windings 43 are wound at intervals W in a state where no load is applied to the compression coil spring 31 (hereinafter also referred to as “non-compressed state”).
　符号Ｌは、圧縮コイルバネ３１の自然長、つまり、非圧縮状態にある圧縮コイルバネ３１の長さを表す。符号ＬＬは、第１端部３１Ｌの長さ、つまり、第１密着巻き端部３１Ｌの長さを表す。符号ＬＲは、第２端部３１Ｒの長さ、つまり、第２密着巻き端部３１Ｒの長さを表す。尚、各密着巻き端部３１Ｌ，３１Ｒの長さＬＬ，ＬＲは、圧縮コイルバネ３１が非圧縮状態にあるか否かに関係なく一定である。 The symbol L represents the natural length of the compression coil spring 31, that is, the length of the compression coil spring 31 in an uncompressed state. The symbol LL represents the length of the first end portion 31L, that is, the length of the first tightly wound end portion 31L. The symbol LR represents the length of the second end portion 31R, that is, the length of the second closely wound end portion 31R. Note that the lengths LL and LR of the tightly wound end portions 31L and 31R are constant regardless of whether or not the compression coil spring 31 is in an uncompressed state.
　符号Ｘは、圧縮コイルバネ３１の自然長Ｌから第１密着巻き端部３１Ｌの長さＬＬを引いた値（長さ）であり、言い換えれば、第２密着巻き端部３１Ｒの長さＬＲと非圧縮状態にある中央部３１Ｃの長さとを加えた値（長さ）である。符号Ｙは、圧縮コイルバネ３１の自然長Ｌから第２密着巻き端部３１Ｒの長さＬＲを引いた値（長さ）であり、言い換えれば、第１密着巻き端部３１Ｌの長さＬＬと非圧縮状態にある中央部３１Ｃとを加えた値（長さ）である。 The symbol X is a value (length) obtained by subtracting the length LL of the first contact winding end portion 31L from the natural length L of the compression coil spring 31, in other words, the length LR of the second contact winding end portion 31R and the length LR. This is a value (length) obtained by adding the length of the central portion 31C in the compressed state. The symbol Y is a value (length) obtained by subtracting the length LR of the second contact winding end portion 31R from the natural length L of the compression coil spring 31. In other words, the length Y of the first contact winding end portion 31L is not equal to the length LL. This is a value (length) obtained by adding the central portion 31C in a compressed state.
［３．操作部の構成等］
　図５及び図６に表すように、操作部Ｓは、第１半割体２５の前方端部２５Ｆと第２半割体２７の前方端部２７Ｆとが重ね合わされることにより、略円筒形状に形成されている。尚、操作部Ｓにおいては、第１半割体２５の前方端部２５Ｆと第２半割体２７の前方端部２７Ｆとが重ね合わされた略円筒形状の構造体に対し、グリップ部材１７が嵌着されている。符号Ｍは、操作部Ｓの円筒軸である。 [3. Configuration of operation unit]
As shown in FIGS. 5 and 6, the operation portion S has a substantially cylindrical shape by overlapping the front end portion 25 </ b> F of the first half body 25 and the front end portion 27 </ b> F of the second half body 27. Is formed. In the operation portion S, the grip member 17 is fitted to the substantially cylindrical structure in which the front end portion 25F of the first half body 25 and the front end portion 27F of the second half body 27 are overlapped. It is worn. A symbol M is a cylindrical shaft of the operation unit S.
　操作部Ｓの円筒軸Ｍの前方にある前方端部ＳＡからは、レリーズノブ１９を構成する第１ノブ部材３２が突出している。第１ノブ部材３２の収容部３２Ａ内には、凹部３２Ｂが形成されている。凹部３２Ｂには、レリーズロッド３５の取付突部３５Ａが係止される。 1st knob member 32 which constitutes release knob 19 protrudes from front end part SA ahead of cylindrical axis M of operation part S. A recess 32 </ b> B is formed in the housing portion 32 </ b> A of the first knob member 32. An attachment projection 35A of the release rod 35 is locked to the recess 32B.
　レリーズノブ１９を構成する第２ノブ部材３３のバネ受部３３Ａは、操作部Ｓに内在し、圧縮コイルバネ３１の第１端部３１Ｌが装着されることにより、圧縮コイルバネ３１の第１端部３１Ｌを保持している。圧縮コイルバネ３１の第２端部３１Ｒは、係止爪４１により係止されている。これにより、圧縮コイルバネ３１は、復元力が発生するので、レリーズノブ１９を構成する第２ノブ部材３３を操作部Ｓの外方へ付勢することにより、レリーズノブ１９を操作部Ｓの前方端部ＳＡから突出させている。尚、圧縮コイルバネ３１がレリーズノブ１９を付勢する方向（以下、「圧縮コイルバネ３１の付勢方向」と言う。）は、操作部Ｓの円筒軸Ｍの前方向と略一致する。 The spring receiving portion 33A of the second knob member 33 constituting the release knob 19 is inherent in the operation portion S, and the first end portion 31L of the compression coil spring 31 is attached to the first end portion 31L of the compression coil spring 31. keeping. The second end portion 31 </ b> R of the compression coil spring 31 is locked by a locking claw 41. Thereby, since the restoring force is generated in the compression coil spring 31, the release knob 19 is urged outward of the operation portion S by urging the second knob member 33 constituting the release knob 19 to move the release knob 19 to the front end SA of the operation portion S. It protrudes from. The direction in which the compression coil spring 31 urges the release knob 19 (hereinafter referred to as “the urging direction of the compression coil spring 31”) substantially coincides with the forward direction of the cylindrical shaft M of the operation portion S.
　係止爪４１は、第１半割体２５の前方端部２５Ｆの平面部分が切り起こされることにより、操作部Ｓの内側に形成されている。係止爪４１は、第１半割体２５の前方端部２５Ｆの平面から立ち上がった起立部４１Ａ、及び起立部４１Ａから延出したストレート部４１Ｂから構成されており、略Ｌ字になっている。ストレート部４１Ｂは、操作部Ｓの円筒軸Ｍの方向に沿って形成されており、操作部Ｓの円筒軸Ｍと略平行の位置関係にある。ストレート部４１Ｂの長さ４１Ｌは、非圧縮状態にある圧縮コイルバネ３１の巻き線４３の間隔Ｗよりも長い。 The locking claw 41 is formed inside the operation portion S by cutting and raising the flat portion of the front end portion 25F of the first half body 25. The locking claw 41 is composed of an upright portion 41A that rises from the plane of the front end portion 25F of the first half body 25 and a straight portion 41B that extends from the upright portion 41A, and is substantially L-shaped. . The straight portion 41 </ b> B is formed along the direction of the cylindrical axis M of the operation unit S, and is in a positional relationship substantially parallel to the cylindrical axis M of the operation unit S. The length 41L of the straight portion 41B is longer than the interval W between the windings 43 of the compression coil spring 31 in an uncompressed state.
［４．圧縮コイルバネの長さ関係］
　図５に表すように、圧縮コイルバネ３１がバネ受部３３Ａ及び係止爪４１に組み付けられると、圧縮コイルバネ３１には組付荷重が作用するので、圧縮コイルバネ３１が圧縮変化する。符号Ｌ１は、組付時の圧縮コイルバネ３１の長さである。 [4. Length relation of compression coil spring]
As shown in FIG. 5, when the compression coil spring 31 is assembled to the spring receiving portion 33 </ b> A and the locking claw 41, an assembly load is applied to the compression coil spring 31, so that the compression coil spring 31 is compressed and changed. Reference numeral L1 denotes the length of the compression coil spring 31 at the time of assembly.
　図６に表すように、レリーズノブ１９を構成する第１ノブ部材３２が圧縮コイルバネ３１の付勢方向とは反対方向（つまり、操作部Ｓの円筒軸Ｍの後方向）へ最大に押し込まれると、圧縮コイルバネ３１には組付荷重に加えて最大押込荷重が作用するので、圧縮コイルバネ３１が組付時にも増して圧縮変化する。符号Ｌ２は、最大押込操作時の圧縮コイルバネ３１の長さである。 As shown in FIG. 6, when the first knob member 32 constituting the release knob 19 is pushed to the maximum in the direction opposite to the urging direction of the compression coil spring 31 (that is, the rearward direction of the cylindrical axis M of the operation portion S), Since the maximum pushing load acts on the compression coil spring 31 in addition to the assembly load, the compression coil spring 31 is further compressed and changed during assembly. Reference numeral L2 is the length of the compression coil spring 31 at the time of the maximum pushing operation.
　図７に表すように、組付時に発生する圧縮コイルバネ３１の撓み量をδ１とすると、組付時に発生する撓み量δ１に対して、組付時の圧縮コイルバネ３１の長さＬ１を加えた値は、圧縮コイルバネ３１の自然長Ｌになる。 As shown in FIG. 7, when the amount of deflection of the compression coil spring 31 generated at the time of assembly is δ1, a value obtained by adding the length L1 of the compression coil spring 31 at the time of assembly to the amount of deflection δ1 generated at the time of assembly. Is the natural length L of the compression coil spring 31.
　最大押込操作時に発生する圧縮コイルバネ３１の撓み量をδ２とすると、最大押込操作時に発生する撓み量δ２に対して、最大押込操作時の圧縮コイルバネ３１の長さＬ２を加えた値は、組付時の圧縮コイルバネ３１の長さＬ１になる。 Assuming that the amount of deflection of the compression coil spring 31 generated during the maximum pushing operation is δ2, the value obtained by adding the length L2 of the compression coil spring 31 during the maximum pushing operation to the amount of deflection δ2 generated during the maximum pushing operation is assembling. It becomes the length L1 of the compression coil spring 31 at the time.
　符号δ３は、圧縮コイルバネ３１の自然長Ｌを基準にした最大押込操作時の撓み量であり、組付時に発生する撓み量δ１と最大押込操作時に発生する撓み量δ２とを加えた値である。 Symbol δ3 is the amount of bending at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31, and is a value obtained by adding the amount of bending δ1 generated at the time of assembly and the amount of bending δ2 generated at the time of the maximum pushing operation. .
　そして、圧縮コイルバネ３１の各密着巻き端部３１Ｌ，３１Ｒの長さＬＬ，ＬＲは、圧縮コイルバネ３１の自然長Ｌを基準にした最大押込操作時の撓み量δ３よりも長くされている。 The lengths LL and LR of the tightly wound end portions 31L and 31R of the compression coil spring 31 are longer than the deflection amount δ3 at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31.
［５．その他］
　ちなみに、本実施形態において、前方端部ＳＡは、「操作部の円筒軸方向の端部」の一例である。第１密着巻き端部３１Ｌは、「他端部」及び「密着巻き端部」の一例である。第２密着巻き端部３１Ｒは、「一端部」及び「密着巻き端部」の一例である。操作部Ｓの円筒軸Ｍの前方向は、「圧縮コイルバネの付勢方向」の一例である。圧縮コイルバネ３１の自然長Ｌを基準にした最大押込操作時の撓み量δ３は、「レリーズノブが圧縮コイルバネの付勢方向とは反対方向へ押込み操作されて圧縮コイルバネが圧縮変化した際の変化量」の一例である。 [5. Others]
Incidentally, in the present embodiment, the front end portion SA is an example of “the end portion of the operation portion in the cylindrical axis direction”. The first tightly wound end portion 31L is an example of the “other end portion” and the “closely wound end portion”. The second closely wound end portion 31R is an example of “one end portion” and “closely wound end portion”. The forward direction of the cylindrical axis M of the operation unit S is an example of “the urging direction of the compression coil spring”. The amount of bending δ3 at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31 is “the amount of change when the compression coil spring is compressed by the release knob being pushed in the direction opposite to the biasing direction of the compression coil spring”. It is an example.
［６．まとめ］
　以上、詳細に説明したように、本実施形態のパーキングブレーキレバー装置１１において、圧縮コイルバネ３１の第２密着巻き端部３１Ｒは、圧縮コイルバネ３１の巻き線４３を互いに密着させたものである。従って、圧縮コイルバネ３１の第２密着巻き端部３１Ｒが係止爪４１で係止される場合には、圧縮コイルバネ３１が第２密着巻き端部３１Ｒの側面で係止爪４１に係止されることは無い。その一方で、圧縮コイルバネ３１の中央部３１Ｃは、非圧縮状態の巻き線４３が間隔Ｗで巻かれたものであることから、圧縮コイルバネ３１の中央部３１Ｃの側面で係止爪４１に係止されるような組付不良は発生することがある。 [6. Summary]
As described above in detail, in the parking brake lever device 11 of the present embodiment, the second tightly wound end portion 31R of the compression coil spring 31 is obtained by bringing the winding 43 of the compression coil spring 31 into close contact with each other. Therefore, when the second contact winding end 31R of the compression coil spring 31 is locked by the locking claw 41, the compression coil spring 31 is locked to the locking claw 41 on the side surface of the second contact winding end 31R. There is nothing. On the other hand, the central portion 31C of the compression coil spring 31 is formed by winding the non-compressed winding 43 at the interval W, and thus is locked to the locking claw 41 on the side surface of the central portion 31C of the compression coil spring 31. Assembling defects may occur.
　但し、圧縮コイルバネ３１の第２密着巻き端部３１Ｒの長さＬＲは、圧縮コイルバネ３１の自然長Ｌを基準にした最大押込操作時の撓み量δ３と比べて長い。そのため、上述したような圧縮コイルバネ３１の組付不良が発生すると、少なくともレリーズノブ１９が押込み操作されていない状態では、圧縮コイルバネ３１の第１密着巻き端部３１Ｌがバネ受部３３Ａから離間していることから、レリーズノブ１９が操作部Ｓの外方へ付勢されなくなる。 However, the length LR of the second closely wound end portion 31R of the compression coil spring 31 is longer than the deflection amount δ3 at the time of the maximum pushing operation based on the natural length L of the compression coil spring 31. Therefore, when the assembly failure of the compression coil spring 31 as described above occurs, the first contact winding end portion 31L of the compression coil spring 31 is separated from the spring receiving portion 33A at least when the release knob 19 is not pushed. For this reason, the release knob 19 is not biased outward of the operation unit S.
　従って、本実施形態のパーキングブレーキレバー装置１１では、レリーズノブ１９が操作部Ｓの外方へ付勢されているか否かを検査員が確認することにより、圧縮コイルバネ３１が巻き線４３の間で係止爪４１に係止されるような組付不良を検査員が容易に見つけ出すことが可能である。 Therefore, in the parking brake lever device 11 of the present embodiment, the inspector checks whether the release knob 19 is urged outward of the operation portion S, so that the compression coil spring 31 is engaged between the windings 43. It is possible for an inspector to easily find an assembly failure that is locked to the pawl 41.
　上述した点は、圧縮コイルバネ３１の第１密着巻き端部３１Ｌが係止爪４１で係止される場合も同様である。 The above-mentioned point is the same when the first tightly wound end portion 31L of the compression coil spring 31 is locked by the locking claw 41.
　本実施形態のパーキングブレーキレバー装置１１では、係止爪４１が起立部４１Ａ及びストレート部４１Ｂを備えており、係止爪４１が略Ｌ字状であるので、圧縮コイルバネ３１の各密着巻き端部３１Ｌ，３１Ｒ以外に存在する中央部３１Ｃの巻き線４３の間に係止爪４１が入り難い。 In the parking brake lever device 11 of the present embodiment, the locking claw 41 includes the standing portion 41A and the straight portion 41B, and the locking claw 41 is substantially L-shaped. It is difficult for the locking claw 41 to enter between the windings 43 of the central portion 31C existing other than 31L and 31R.
　より詳細に言えば、本実施形態のパーキングブレーキレバー装置１１を組み立てる際には、上述したように、作業台上において、レバー本体１５の右側部分を構成する第１半割体２５を、その左側面（内面）が上方に向くようにして配置する。続いて、第１半割体２５の上方から、圧縮コイルバネ３１が挿通された状態にあるレリーズロッド３５を、第１半割体２５の左側面（内面）に積層するように配設する。 More specifically, when assembling the parking brake lever device 11 of the present embodiment, as described above, the first half 25 constituting the right side portion of the lever main body 15 is placed on the left side of the work table. It arrange | positions so that a surface (inner surface) may face upwards. Subsequently, the release rod 35 in a state where the compression coil spring 31 is inserted is disposed so as to be laminated on the left side surface (inner surface) of the first half body 25 from above the first half body 25.
　従って、仮に、係止爪４１が第１半割体２５の左側面（内面）の平面部分から斜めに切り起こされていると、作業台上では、係止爪４１の先端部分が斜め上方に向いているので、第１半割体２５の上方から、レリーズロッド３５を第１半割体２５の左側面（内面）に積層するときに、圧縮コイルバネ３１の巻き線４３の間に係止爪４１が入るような組付不良が発生し易くなる。 Therefore, if the locking claw 41 is obliquely cut and raised from the left side surface (inner surface) of the first half 25, the tip of the locking claw 41 is inclined upward on the work table. Therefore, when the release rod 35 is stacked on the left side surface (inner surface) of the first half body 25 from above the first half body 25, the latching claw is interposed between the windings 43 of the compression coil spring 31. Assembling defects such as 41 are likely to occur.
　しかしながら、本実施形態では、係止爪４１の先端部分であるストレート部４１Ｂが、操作部Ｓの円筒軸Ｍの方向に沿って、つまり、第１半割体２５の左側面（内面）の平面部分に沿って形成されている。従って、作業台上では、係止爪４１の先端部分が上方とは直交する横方向に向いているので、第１半割体２５の上方から、レリーズロッド３５を第１半割体２５の左側面（内面）に積層するときに、圧縮コイルバネ３１の巻き線４３の間に係止爪４１が入るような組付不良が発生し難い。 However, in the present embodiment, the straight portion 41B that is the tip portion of the locking claw 41 is along the direction of the cylindrical axis M of the operation portion S, that is, the plane of the left side surface (inner surface) of the first half body 25. It is formed along the part. Accordingly, since the tip end portion of the locking claw 41 is oriented in the lateral direction perpendicular to the upper side on the work table, the release rod 35 is placed on the left side of the first half 25 from above the first half 25. When laminating on the surface (inner surface), it is difficult to cause an assembly failure such that the locking claw 41 enters between the windings 43 of the compression coil spring 31.
　さらに、本実施形態のパーキングブレーキレバー装置１１では、係止爪４１のストレート部４１Ｂの長さ４１Ｌが圧縮コイルバネ３１の非圧縮状態での巻き線４３の間隔Ｗと比べて長いので、係止爪４１が圧縮コイルバネ３１の中央部３１Ｃの巻き線４３の間に入らない。 Further, in the parking brake lever device 11 of the present embodiment, the length 41L of the straight portion 41B of the locking claw 41 is longer than the interval W of the winding 43 when the compression coil spring 31 is not compressed. 41 does not enter between the windings 43 of the central portion 31 </ b> C of the compression coil spring 31.
　本実施形態のパーキングブレーキレバー装置１１では、圧縮コイルバネ３１の第１端部３１Ｌ及び第２端部３１Ｒが密着巻き端部であり、圧縮コイルバネ３１の方向性が無くなるので、圧縮コイルバネ３１を係止爪４１に組み付ける際の作業性が向上する。つまり、本実施形態のように、圧縮コイルバネ３１の第２密着巻き端部３１Ｒがレリーズロッド３５の連結突部３５Ｂ側を向くようにした状態で圧縮コイルバネ３１をレリーズロッド３５に挿通した後に、圧縮コイルバネ３１の第２密着巻き端部３１Ｒを係止爪４１に係止させても良いし、逆に、圧縮コイルバネ３１の第１密着巻き端部３１Ｌがレリーズロッド３５の連結突部３５Ｂ側を向くようにした状態で圧縮コイルバネ３１をレリーズロッド３５に挿通した後に、圧縮コイルバネ３１の第１密着巻き端部３１Ｌを係止爪４１に係止させても良い。 In the parking brake lever device 11 of the present embodiment, the first end portion 31L and the second end portion 31R of the compression coil spring 31 are tightly wound end portions, and the directionality of the compression coil spring 31 is lost, so that the compression coil spring 31 is locked. Workability at the time of assembling to the claw 41 is improved. That is, as in the present embodiment, after the compression coil spring 31 is inserted into the release rod 35 with the second tightly wound end portion 31R of the compression coil spring 31 facing the connecting projection 35B side of the release rod 35, the compression is performed. The second contact winding end 31R of the coil spring 31 may be locked to the locking claw 41. Conversely, the first contact winding end 31L of the compression coil spring 31 faces the connecting projection 35B side of the release rod 35. After the compression coil spring 31 is inserted into the release rod 35 in such a state, the first close winding end 31L of the compression coil spring 31 may be locked to the locking claw 41.
［７．変更例］
　尚、本発明は上記実施形態に限定されるものでなく、その趣旨を逸脱しない範囲で様々な変更が可能である。
　例えば、図８に表すように、本実施形態のパーキングブレーキレバー装置１１は、バネ受部３３Ａ及び係止爪４１に組み付けられた圧縮コイルバネ３１が、最大押込操作時に操作部Ｓ内で湾曲する場合であっても良い。尚、図８は、圧縮コイルバネ３１の湾曲形状を除けば、図６と同じである。 [7. Example of change]
In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning.
For example, as shown in FIG. 8, in the parking brake lever device 11 of the present embodiment, the compression coil spring 31 assembled to the spring receiving portion 33 </ b> A and the locking claw 41 bends in the operation portion S during the maximum pushing operation. It may be. FIG. 8 is the same as FIG. 6 except for the curved shape of the compression coil spring 31.
　また、圧縮コイルバネ３１の各密着巻き端部３１Ｌ，３１Ｒの長さＬＬ，ＬＲは、同じであっても良いし、異なっていても良い。 Further, the lengths LL and LR of the tightly wound end portions 31L and 31R of the compression coil spring 31 may be the same or different.
　また、圧縮コイルバネ３１は、第２密着巻き端部３１Ｒ以外が非圧縮状態において巻き線４３を間隔Ｗで巻いたものであっても良いし、第１密着巻き端部３１Ｌ以外が非圧縮状態において巻き線４３を間隔Ｗで巻いたものであっても良い。但し、これらの場合には、第２密着巻き端部３１Ｒ又は第１密着巻き端部３１Ｌが係止爪４１に係止されるように組み付けられる。 Further, the compression coil spring 31 may be one in which the winding 43 is wound at the interval W in a non-compressed state except for the second tightly wound end portion 31R, or other than the first tightly wound end portion 31L. What wound the winding 43 by the space | interval W may be used. However, in these cases, the second tightly wound end portion 31R or the first tightly wound end portion 31L is assembled so as to be locked to the locking claw 41.
１１　　パーキングブレーキレバー装置
１９　　レリーズノブ
３１　　圧縮コイルバネ
３１Ｌ　圧縮コイルバネの第１密着巻き端部
３１Ｒ　圧縮コイルバネの第２密着巻き端部
３３Ａ　バネ受部
４１　　係止爪
４１Ａ　起立部
４１Ｂ　ストレート部
４１Ｌ　ストレート部の長さ
ＬＬ　　圧縮コイルバネの第１密着巻き端部の長さ
ＬＲ　　圧縮コイルバネの第２密着巻き端部の長さ
　Ｍ　　操作部の円筒軸
　Ｓ　　操作部
ＳＡ　　前方端部
　Ｗ　　圧縮コイルバネの非圧縮状態での巻き線の間隔
δ３　　圧縮コイルバネの自然長を基準にした最大押込操作時の撓み量 DESCRIPTION OF SYMBOLS 11 Parking brake lever apparatus 19 Release knob 31 Compression coil spring 31L 1st close_contact | adherence winding end part 31R of a compression coil spring 2nd close_contact | adherence winding end part 33A of a compression coil spring Spring receiving part 41 Locking claw 41A Standing part 41B Straight part 41L Straight part length LL Length of the first closely wound end of the compression coil spring LR Length of the second closely wound end of the compression coil spring M Cylindrical shaft of the operating part S Operating part SA Front end W Wrapping of the compression coil spring in an uncompressed state Δ3 Deflection amount during maximum push-in operation based on the natural length of the compression coil spring

Claims (4)

  1. 　略円筒形状の操作部と、
    　前記操作部の円筒軸方向の端部から突出するレリーズノブと、
    　前記レリーズノブに設けられ、前記操作部の内側に位置するバネ受部と、
    　前記操作部の内側に設けられた係止爪と、
    　一端部が前記係止爪に係止されると共に他端部が前記バネ受部で保持されることにより、前記レリーズノブを前記操作部の外方へ付勢する圧縮コイルバネと、を備え、
    　前記圧縮コイルバネの一端部は、該圧縮コイルバネの巻き線が互いに密着する密着巻き端部であり、
    　前記密着巻き端部の長さは、前記レリーズノブが前記圧縮コイルバネの付勢方向とは反対方向へ押込み操作されて該圧縮コイルバネが圧縮変化した際の変化量よりも長いことを特徴とするパーキングブレーキレバー装置。     A substantially cylindrical operating section;
    A release knob protruding from an end of the operation portion in the cylindrical axis direction;
    A spring receiving portion provided on the release knob and positioned inside the operation portion;
    A locking claw provided inside the operation portion;
    A compression coil spring that urges the release knob outward of the operation portion by having one end portion locked by the locking claw and the other end portion held by the spring receiving portion;
    One end of the compression coil spring is a tightly wound end where the windings of the compression coil spring are in close contact with each other,
    The length of the tightly wound end is longer than the amount of change when the release knob is pushed in the direction opposite to the direction in which the compression coil spring is urged to change the compression of the compression coil spring. Lever device.
  2. 　前記係止爪は、
    　前記レバー本体の内側面から立ち上がった起立部と、
    　前記起立部から延設され、前記操作部の円筒軸方向に沿ったストレート部と、を備えることを特徴とする請求項１に記載のパーキングブレーキレバー装置。     The locking claw is
    An upright part rising from the inner surface of the lever body;
    The parking brake lever device according to claim 1, further comprising: a straight portion that extends from the standing portion and extends along a cylindrical axis direction of the operation portion.
  3. 　前記係止爪のストレート部の長さは、前記圧縮コイルバネの非圧縮状態での巻き線の間隔よりも長いことを特徴とする請求項２に記載のパーキングブレーキレバー装置。 The parking brake lever device according to claim 2, wherein a length of the straight portion of the locking claw is longer than a winding interval in an uncompressed state of the compression coil spring.
  4. 　前記圧縮コイルバネの他端部は、前記密着巻き端部であることを特徴とする請求項１乃至請求項３のいずれか一つに記載のパーキングブレーキレバー装置。 The parking brake lever device according to any one of claims 1 to 3, wherein the other end portion of the compression coil spring is the tightly wound end portion.
PCT/JP2017/012909 2016-09-16 2017-03-29 Parking brake lever device WO2018051560A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022092127A1 (en) * 2020-10-27 2022-05-05 株式会社ハイレックスコーポレーション Engagement structure
US11697404B2 (en) 2019-07-25 2023-07-11 Toyoda Iron Works Co., Ltd. Parking brake control device

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Publication number Priority date Publication date Assignee Title
JPH079671U (en) * 1993-07-23 1995-02-10 豊生ブレーキ工業株式会社 Parking brake device
JP2010143160A (en) * 2008-12-22 2010-07-01 Apic Yamada Corp Spring unit and mold
JP2015135148A (en) * 2014-01-17 2015-07-27 カヤバ工業株式会社 Suspension device
JP2016097732A (en) * 2014-11-19 2016-05-30 豊田鉄工株式会社 Parking brake operation device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH079671U (en) * 1993-07-23 1995-02-10 豊生ブレーキ工業株式会社 Parking brake device
JP2010143160A (en) * 2008-12-22 2010-07-01 Apic Yamada Corp Spring unit and mold
JP2015135148A (en) * 2014-01-17 2015-07-27 カヤバ工業株式会社 Suspension device
JP2016097732A (en) * 2014-11-19 2016-05-30 豊田鉄工株式会社 Parking brake operation device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11697404B2 (en) 2019-07-25 2023-07-11 Toyoda Iron Works Co., Ltd. Parking brake control device
WO2022092127A1 (en) * 2020-10-27 2022-05-05 株式会社ハイレックスコーポレーション Engagement structure
JP7473447B2 (en) 2020-10-27 2024-04-23 株式会社ハイレックスコーポレーション Engagement Structure

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