JP2007062583A - Grip structure of parking brake device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grip structure of a parking brake device having good appearance and design and capable of being attached to an operation lever main body securely and easily. <P>SOLUTION: This grip structure 6 of the parking brake device 1 is the structure of a grip 60 braking and operating through a brake cable 110 by swinging an operation lever 4 manually and is constituted by combining a grip base 63 provided in a tip part of the operation lever main body 4A with a grip member 64 being separate from the grip base 63. The grip member 64 has an engaging part 164 engaging with the grip base 63, which has an engaged part 63b with which the grip member 64 is engaged. The grip member 64 can be assembled on the grip base 63 by engagement of the engaging part 164 with the engaged part 63b of the grip base 63. A release rod 62 for releasing a braking condition is arranged in a storage space 66 formed by the grip base 63 and the grip member 64 which are assembled. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a grip structure of a parking brake device that performs a braking operation via a brake cable by manually swinging an operation lever.

In a conventional parking brake device, for example, there is a grip as shown in Patent Document 1 as a grip of an operation lever.
That is, a resin grip molded product having a substantially cylindrical shape is press-fitted into the hand brake lever body and fixed. In addition, there is a type in which the grip molded product is fixed to the handbrake lever body by an adhesive instead of press-fitting.
JP 2004-322949 A

  However, with such a conventional technique, a parting line is formed in the resin molded product due to the structure of the mold for molding the resin molded product. Although this parting line was excised, there was a problem that the appearance was impaired because the excision trace remained.

  In addition, when the molded resin product after molding is cooled, a difference in the cooling rate occurs in a portion having a difference in thickness, so an unnecessary dent, a so-called sink, occurs in a thick portion having a slow cooling rate. There is a problem that it is extremely difficult to make a grip with an original design because there are restrictions on modeling because of other molding conditions.

  Further, when press fitting the grip of the resin molded product into the main body of the operation lever, there is a problem in work that it is necessary to consider the grip breakage or the disconnection due to insufficient press fit.

  In addition, when bonding the grip of a resin molded product to the main body of the operating lever, it is necessary to select different adhesives depending on the grip material, management of the adhesive is necessary, and to ensure a secure bond There were work problems such as the need for safety measures in the work environment when using organic solvents in the pretreatment.

  The present invention has been made paying attention to such problems of the conventional technology, and has a grip structure for a parking brake device that is excellent in appearance and design and can be securely and easily attached to an operation lever body. The purpose is to provide.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] In the grip structure (6) of the parking brake device (1) that performs a braking operation via the brake cable (110) by manually swinging the operation lever (4),
A grip base (63) provided at the tip of the operation lever body (4A) and a grip member (64) separate from the grip base (63) are combined.
The grip member (64) has an engaging portion (164) that engages with the grip base (63), and the grip base (63) is an engaged portion with which the grip member (64) engages. (63b)
The grip member (64) can be assembled to the grip base (63) by the engagement of the engaging portion (164) and the engaged portion (63b) of the grip base (63).
The assembled grip base (63) and grip member (64) form a storage space (66) for storing and arranging a release rod (62) for releasing the braking state. Grip structure (6) of the parking brake device characterized.

[2] Further, a cover member (65) that covers the outer surface (63c) of the grip base (63), which is formed separately from the grip base (63) and the grip member (64), is combined. Consisting of
The cover member (65) has a sandwiched portion (65a) that is sandwiched and fixed between the grip member (64) and the grip base (63),
The sandwiched portion (65a) can be assembled so as to be sandwiched between the grip member (64) and the grip base (63) so as to cover the grip base (63) [1. ] The grip structure (6) of the parking brake device described in the above.

  [3] The engaged portion (63b) of the grip base (63) is a through-hole (63b) that penetrates the side wall of the grip base (63), and the engaging portion (164) of the grip member (64). ) Is a locking claw (164) that locks into the through hole (63b). The parking brake device grip structure (6) according to [1] or [2].

  [4] The grip member (64) includes a displacement restricting portion (67) that faces the storage space (66) and restricts the displacement of the release rod (62). The grip structure (6) of the parking brake device according to [2] or [3].

The present invention operates as follows.
A grip base (63) combined with a grip member (64) is provided at the tip of the operation lever body (4A). In this grip base (63), a member separate from the operation lever main body (4A) may be fixed to the tip of the operation lever main body (4A), or a part of the operation lever main body (4A) may be fixed to the grip base. (63) may be formed.

  In order to assemble the grip (60), first, the engaging portion (164) of the grip member (64) is engaged with the engaged portion (63b) of the grip base (63) provided at the tip of the operation lever body (4A). Assemble. The engaged portion (63b) of the grip base (63) is a through hole (63b) penetrating the side wall of the grip base (63). When the engaging portion (164) of the grip member (64) is the locking claw (164) protruding outward, the locking claw (164) is connected to the through-hole (63b) of the grip base (63). It only has to be fitted and engaged. At this time, until the locking claw (164) of the grip member (64) engages with the through hole (63b) of the grip base (63), the locking claw (164) is positioned inside the grip base (63). Since it is pushed in, the grip member (64) is elastically deformed. However, when the locking claw (164) engages with the through hole (63b), the grip member (64) is displaced outward, and the elastic deformation is restored. Thereby, since the latching claw (164) reliably engages with the through hole (63b), the grip member (64) can be easily and reliably attached to the grip base (63).

  When the outer surface (63c) of the grip base (63) is covered with the cover member (65), the cover member (65) is moved to the grip base (63) when the grip member (64) is engaged with the grip base (63). ) So that the gripped portion (65a) of the cover member (65) is sandwiched between the grip member (64) and the grip base (63) so as to cover the outer surface (63c). The engaging portion (164) of the member (64) may be engaged with the engaged portion (63b) of the grip base (63).

  When the grip member (64) is assembled to the grip base (63), a storage space (66) for storing a release rod (62) for releasing the braking state is formed inside thereof.

  Since the displacement restricting portion (67) facing the storage space (66) protrudes from the grip member (64), the operated release rod (62) extends in the storage space (66) in the longitudinal direction of the grip (60). When displacing in the direction, it is possible to prevent displacement such as blurring in directions other than the longitudinal direction, and to reliably transmit an operation for releasing the braking state.

  According to the grip structure of [1] according to the present invention, the grip member is a separate body from the grip base provided at the distal end portion of the operation lever body. It can be excellent. In addition, the grip member can be assembled to the grip base by engaging the engaging portion with the engaged portion of the grip base, and the release rod is placed in the storage space formed by the assembled grip base and the grip member. Can be easily and reliably assembled. In addition, when the engaging portion is not completely fitted into the engaged portion, the engaging rod protrudes greatly into the storage space, so the release rod cannot be inserted into the storage space. Can be prevented.

  According to the grip structure of [2] according to the present invention, since the cover member formed separately from the grip base and the grip member is assembled so as to cover the outer surface of the grip base, the appearance and the design are further improved. Can be Moreover, since the cover member can be assembled by sandwiching the sandwiched portion between the grip member and the grip base, it can be easily and reliably attached.

  According to the grip structure of [3] according to the present invention, the engaged portion of the grip base is a through hole formed so as to penetrate the side wall of the grip base, and the engaging portion of the grip member is formed in the through hole. Since it is the latching claw formed so that it may enter and latch, it can attach more reliably.

  According to the grip structure of [4] according to the present invention, the grip member regulates the displacement of the release rod during operation by the displacement regulating portion formed facing the storage space, so that the displacement of the release rod is stabilized. The operation can be transmitted reliably.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
Each figure shows an embodiment of the present invention.
As shown in FIGS. 1 and 2, the grip 60 having the grip structure 6 according to the present embodiment constitutes the operation lever 4 of the so-called lever type parking brake device 1.

  The parking brake device 1 performs a braking operation via the brake cable 110 by manually swinging the operation lever 4 including a pawl 40 that can be engaged with and disengaged from a ratchet plate 3 fixed to a base (not shown). 1 is a parking brake device 1 for a vehicle. The base is fixed to the floor of the vehicle below the inside of the center console 100.

  The operation lever 4 includes an operation lever body 4A and a grip 60. The operation lever main body 4A includes a swing base 30 having one end pivotally supported on the base by the pivot shaft 22, and a tubular intermediate member 50 extending in an arc shape upward and rearward from the other end of the swing base 30. Become. A proximal end portion 60a of the grip 60 is attached to the upper end portion of the intermediate member 50 that forms the distal end portion of the operation lever main body 4A.

  The swing base 30 and the ratchet plate 3 are disposed on the lower side inside the center console 100. Further, the intermediate member 50 is inserted into an insertion hole 101 formed in the center console 100, and the grip 60 side protrudes outside the center console 100. The intermediate member 50 appears and disappears from the insertion hole 101 of the center console 100 as the swing base 30 swings.

  The ratchet plate 3 is disposed at a position near the intermediate member 50 of the swing base 30. The ratchet plate 3 is an arc-shaped metal plate extending backward from the lower end portion toward the upper end portion. An upper end portion and a lower end portion of the ratchet plate 3 are fixed to the base by bolts 24. The ratchet plate 3 has a tooth portion 32 having a plurality of teeth formed on an outer diameter portion 31 close to the intermediate member 50.

  The intermediate member 50 is a tubular member, and an arcuate relay rod 51 is inserted therein. The relay rod 51 is divided into two upper and lower parts, and the upper upper relay rod 51a and the lower lower relay rod 51b are in contact with each other and arranged in series. The relay rod 51 has a concave portion 511 formed in a recess at the upper end of the upper relay rod 51a, and has a spring mounting portion 53 for mounting the coil spring S at the lower end of the lower relay rod 51b.

  The pole 40 is pivotally supported by the swing base 30 by a pin 41 at an intermediate position between the intermediate member 50 and the ratchet plate 3. This pole 40 abuts on a tooth 42 that engages and disengages with the tooth portion 32 of the ratchet plate 3 and a coil spring S that is attached to a spring attachment portion 53 at the lower end portion of the relay rod 51. The direction in which the teeth 42 are released from the engagement with the tooth portion 32 by the operation of the spring contact portion 43 that receives the urging force in the locking direction from the coil spring S and the release cam 52 formed at the lower end portion of the relay rod 51. The release cam abutting portion 44 that receives this force extends in three directions from the center.

  The release cam 52 protrudes laterally from a portion above the spring mounting portion 53 of the lower relay rod 51b. A lower end portion of the lower relay rod 51b extends below the lower end of the intermediate member 50, and a release cam 52 and a spring mounting portion 53 are formed at the lower end portion extending below the intermediate member 50.

  A drum portion 300 around which the brake cable 110 is wound is provided on one end side of the swing base portion 30. A cable guide 90 is fixed in the middle of the swing base 30 in front of the drum unit 300. The brake cable 110 wound around the drum portion 300 is passed through the cable guide 90 and fixed to the swing base 30 at the upper end portion of the cable guide 90. Accordingly, when the grip 60 is pulled up in the braking direction of the brake, the brake cable 110 pulled out by the swing of the swing base 30 is wound around the drum unit 300.

The grip 60 disposed at the upper end of the intermediate member 50, which is the tip of the operation lever main body 4A, is a portion that the operator grips with his / her hand when operating the control lever 4, and the operation knob 61 is capable of protruding and retracting at the tip. Is incorporated. The operation knob 61 is for operating the pole 40 via the relay rod 51. When the braking state of the parking brake device 1 in the braking state is released, the operation knob 61 is operated to The latch with the ratchet plate 3 is released. A release rod 62 is inserted into a storage space 66 described later in the grip 60, and an operation knob 61 is fixed to a distal end portion 62 a of the release rod 62. On the intermediate side surface of the release rod 62, a locking claw 68 (see FIG. 6) that locks with the inner wall 64b of the grip upper member 64 when mounted in the storage space 66 is formed.
A leg 161 extends from the operation knob 61, and a hook 161 a is formed at the tip of the leg 161. On the other hand, the release rod 62 is formed with a locked portion 162 to which the hook 161a of the operation knob 61 is locked.

  A grip base 63 that is below the grip 60 is fixed to the upper end portion of the intermediate member 50. The fixing portion 63 a is a part of the base end portion 60 a of the grip 60 described above, and the pivot portion 70 a of the link member 70 is pivotally supported on the pivot shaft 701. The link member 70 has an arcuate portion 70b at the tip of the pivot portion 70a. The operation of the release rod 62 can be transmitted to the relay rod 51 by the link member 70.

  In the link member 70, one end portion 71 of the arc-shaped portion 70 b is in contact with the concave portion 511 of the relay rod 51, and the other end portion 72 is in contact with the base end portion 62 b of the release rod 62. Thereby, the operation knob 61 and the relay rod 51 are connected via the link member 70, and these can be interlocked with each other. Therefore, the operation of the operation knob 61 can be transmitted to the relay rod 51 to rotate the pole 40, and the pole 40 can be released from being locked with the ratchet plate 3. Further, since the release rod 62 and the link member 70 are joined only by pressing, a joining operation using a pin and a joining operation such as a hook are unnecessary.

  As shown in FIGS. 8 and 9, the grip base 63 has a shape in which the cross section appears in a U shape. Rectangular through-holes 63b (engaged portions) are formed in both side walls of the grip base 63, respectively. The grip 60 is configured by combining a grip upper member 64 (grip member) that is a separate member from the grip base 63 and engages with the through-hole 63 b and a cover member 65 that covers the outer surface 63 c of the grip base 63.

  The grip upper member 64 is assembled on the grip base 63 so as to cover the grip base 63 from the tip portion of the grip 60, and has an opening 64a in which the operation knob 61 protrudes and protrudes at the tip portion. The grip upper member 64 has an inner wall 64b whose cross section appears in a U shape, and has a locking claw 164 (engagement portion) protruding outward from the inner wall 64b. When the grip upper member 64 is assembled to the grip base 63, the locking claw 164 is locked to the through-hole 63 b from the inside to the outside of the grip base 63.

  As shown in FIG. 9, the tip of the locking claw 164 locked to the through hole 63b is in contact with the cover member 65 that closes the through hole 63b from the outside. The locking claw 164 has an inclined surface 164c inclined outward from the lower surface 164a toward the upper surface 164b. As will be described later, the inclined surface 164 c can facilitate the work when the grip upper member 64 is incorporated into the grip base 63.

  In a state where the grip upper member 64 is assembled to the grip base 63, a storage space 66 is formed by the inner side of the inner wall 64 b of the grip upper member 64 and the inner side of the grip base 63. A release rod 62 is stored in the storage space 66. The grip upper member 64 is formed with a displacement restricting portion 67 that restricts the displacement of the release rod 62 that is displaced in the storage space 66 by the operation of the operation knob 61. The displacement restricting portion 67 extends downward from the ceiling side of the inner wall 64b of the grip upper member 64 toward the grip base 63 so as to block a part of the storage space 66 on the grip upper member 64 side, and a lower end portion thereof. It extends to the vicinity of the upper edge of the release rod 62.

  As a result, the release rod 62 being displaced does not shake in the vertical direction, so that the operation is reliably transmitted. The displacement restricting portion 67 may be formed on the grip base 63.

  The cover member 65 is a member that covers the outer surface 63c of the grip base 63, and has a shape in which the cross section appears in a U-shape. The U-shaped upper edge portion is formed as a sandwiched portion 65 a for sandwiching and fixing between the side surface edge portion of the grip base 63 and the U-shaped upper edge portion of the grip upper member 64.

Next, the operation will be described.
In order to assemble the grip 60 having the above-described grip structure 6, as shown in FIG. 3, first, the cover member 65 is mounted so as to cover the grip base 63 provided at the tip of the intermediate member 50.

  Next, the grip upper member 64 is assembled to the grip base 63 as shown in FIG. At this time, the grip upper member 64 lowers the rear end portion in the arrow B direction after the front end portion where the opening 64 a is formed is hung on the front end portion of the grip base 63. When the grip upper member 64 is lowered, the slope 164 c of the locking claw 164 hits the upper edge of the grip base 63. In order to engage the latching claw 164 of the grip upper member 64 with the through hole 63b of the grip base 63, the latching claw 164 needs to be pushed into the grip base 63, so that the grip upper member 64 is further pushed down.

  Thereby, the inner wall 64b in the vicinity of the locking claw 164 is elastically deformed, and the locking claws 164 on both sides are displaced toward the inside of the inner wall 64b. In order to make this displacement, it is necessary to increase the pressing force. However, since the portion where the upper edge of the grip base 63 collides is the inclined surface 164c, the locking claw 164 can be pressed down relatively easily. it can.

  When the upper surface 164b of the locking claw 164 is pushed down to the through-hole 63b, the locking claw 164 is displaced in a direction to return to the original by the elastic force. That is, each latching claw 164 is displaced outward in the through hole 63b.

  As shown in FIG. 9, since the grip base 63 covers the outer surface 63 c with the cover member 65, the through hole 63 b is closed with the cover member 65 on the outer surface 63 c side. For this reason, the locking claw 164 presses the cover member 65 in the through hole 63b. Thereby, the latching claw 164 fits into the through-hole 63b and is securely engaged, and the grip upper member 64 can be assembled to the grip base 63 as shown in FIG. Thereby, a storage space 66 is formed inside.

  Next, as shown in FIGS. 6 and 7, the base end portion 62 b of the release rod 62 having the operation knob 61 fixed to the distal end portion 62 a is inserted into the storage space 66 from the opening 64 a of the grip upper member 64. Insert it. The release rod 62 can be mounted so that the locking claw 68 on the intermediate side surface is locked to the inner wall 64b of the grip upper member 64 and does not fall off simply by being pushed into the storage space 66. Thereby, the grip 60 is assembled.

  Since the displacement restricting portion 67 that faces the storage space 66 protrudes from the grip upper member 64, when the operated release rod 62 is displaced in the storage space 66 in the longitudinal direction of the grip 60, it is shaken vertically. Can be prevented, and an operation for releasing the braking state can be reliably transmitted.

  As described above, the grip 60 has the grip structure 6 formed by combining a plurality of separate members. Therefore, the grip 60 can be designed for each separate member, and the design freedom of the entire grip 60 is increased. In addition, there has been a risk that a member that has been press-fitted in the past may be broken by press-fitting. However, since the grip 60 having the grip structure according to the present invention has no member to be fitted by press-fitting, there is no such concern.

  Furthermore, when mounting by press-fitting, there is a possibility that it will come off due to insufficient press-fitting, and when mounting a member by bonding, there is a possibility that it will be displaced when a force greater than the adhesive force is applied. However, since the grip 60 having the grip structure 6 according to the present invention is not bonded, there is no such concern.

  In the above-described embodiment, the grip provided on the operation lever of the lever type parking brake device in which the intermediate member 50 of the operation lever 4 protrudes and retracts from the insertion hole 101 of the center console 100 has been described as an example. Is exposed from the center console, and can be widely implemented even with a grip of a conventional general lever type parking brake device in which an operation lever is tilted up and down to perform a braking operation.

  In this case, when the intermediate member and the grip extend substantially straight, a part of the operation lever main body may be formed as a grip base.

It is a structural diagram showing a grip structure according to an embodiment of the present invention. It is a right view which shows the operation lever of the parking brake apparatus provided with the grip which has the grip structure of FIG. It is a perspective view which shows the assembly | attachment of the grip of FIG. It is a perspective view which shows the assembly | attachment following the assembly | attachment shown in FIG. It is a perspective view which shows the assembly | attachment following the assembly | attachment shown in FIG. It is a perspective view which shows the assembly | attachment following the assembly | attachment shown in FIG. It is a perspective view which shows the grip which assembly | attachment was completed. It is CC sectional view taken on the line in FIG. It is the DD sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS S ... Coil spring 1 ... Parking brake apparatus 3 ... Ratchet plate 4 ... Operation lever 4A ... Operation lever main body 6 ... Grip structure 22 ... Axis 24 ... Bolt 30 ... Swing base 31 ... Outer diameter part 32 ... Tooth part 40 ... Pole 41 ... Pin 42 ... Tooth 43 ... Spring contact part 44 ... Release cam contact part 50 ... Intermediate member 51 ... Intermediate rod 51a ... Upper relay rod 51b ... Lower relay rod 52 ... Release cam 53 ... Spring mounting part 60 ... Grip 60a ... Base end portion 61 ... Operation knob 62 ... Release rod 62a ... Tip end portion 62b ... Base end portion 63 ... Grip base 63a ... Fixing portion 63b ... Through hole 63c ... Outer surface 64 ... Grip upper member 64a ... Opening 64b ... Inner wall 65 ... Cover member 65a ... Nipped portion 66 ... Storage space 67 ... Displacement restricting portion 68 ... Locking claw 70 ... Link member 70a ... Pivoting portion 70b ... Arc portion 71 ... One end 72 ... Other end 90 ... Cable guide 100 ... Center console 110 ... Brake cable 101 ... Insertion hole 161 ... Leg portion 161a ... Hook 162 ... Locked portion 164 ... Stopper 164a ... Lower surface 164b ... Upper surface 164c ... Slope 300 ... Drum portion 511 ... Concave portion 701 ... Axis

Claims (4)

In the grip structure of the parking brake device that performs braking operation via the brake cable by manually swinging the operation lever,
A grip base provided at the tip of the operation lever body and a grip member separate from the grip base are combined,
The grip member has an engaging portion that engages with the grip base, and the grip base has an engaged portion with which the grip member engages,
The grip member can be assembled to the grip base by engagement of the engaging portion and the engaged portion of the grip base.
A grip structure for a parking brake device, wherein the assembled grip base and grip member form a storage space for storing and arranging a release rod for releasing the braking state. Furthermore, the grip base and the grip member are formed separately from each other, and a cover member that covers the outer surface of the grip base is combined.
The cover member has a sandwiched portion that is sandwiched and fixed between the grip member and the grip base,
The grip structure of the parking brake device according to claim 1, wherein the gripped portion can be assembled so as to be sandwiched between the grip member and the grip base so as to cover the grip base.   The engaged portion of the grip base is a through-hole that penetrates a side wall of the grip base, and the engaging portion of the grip member is a locking claw that engages with the through-hole. Item 3. A grip structure for a parking brake device according to item 1 or 2.   4. The parking brake device grip structure according to claim 1, wherein the grip member includes a displacement restricting portion that restricts a displacement of the release rod facing the storage space. 5.

Images