JP5414732B2 - Control lever grip - Google Patents

Description

  The present invention relates to an operating lever, and more particularly to a grip that is fitted to and integrated with a distal end portion of an operating lever body.

  One of the grips of the operating lever such as the parking brake operating lever has a cylindrical shape and is fitted to the outer peripheral side of the distal end portion of the operating lever body, and the operating lever is provided on the inner peripheral surface of the cylindrical shape. A locking portion that is locked to the locked portion of the main body is provided. When the locking portion gets over the locked portion due to elastic deformation when fitted to the operation lever main body, the assembly position There is known a grip that is elastically restored and is prevented from coming off when the locking portion is locked to the locked portion, and is integrally attached to the operation lever body. The apparatus described in Patent Document 1 is an example, and a grip made of polyvinyl chloride (PVC) is used.

Japanese Utility Model Publication No. 5-7563

  However, since the polyvinyl chloride has a relatively large specific gravity (about 1.4), there is a problem that the weight of the grip is increased. On the other hand, for example, polypropylene (PP) has a specific gravity as small as about 0.9, but is harder than polyvinyl chloride. Therefore, assembly work when fitting the grip to the operation lever body with elastic deformation is performed. May become difficult due to slight dimensional errors.

  The present invention has been made in the background of the above circumstances, and the object of the present invention is to use a combination due to dimensional error when the locking portion is locked to the locked portion by elastic deformation of the grip to prevent the locking portion from coming off. The purpose is to reduce the weight while suppressing the deterioration of applicability.

  In order to achieve this object, the first invention has a cylindrical shape and is fitted to the outer peripheral side of the distal end portion of the operating lever main body, and the cylindrical inner peripheral surface of the operating lever main body is A locking portion that is locked to the locked portion is provided, and the locking portion gets over the locked portion by elastic deformation when fitted to the operation lever body, and at the assembly position In the grip that is elastically restored and the locking portion is locked to the locked portion to be prevented from coming off and is integrally attached to the operation lever main body, (a) provided with the locking portion. And an elastically deformable resin-made inner member fitted so as to be in close contact with the outer peripheral side of the operation lever main body, and (b) the inner member provided so as to cover the outer peripheral side of the inner member Trees that are harder and have a lower specific gravity And having the manufacturing of the outer member.

  According to a second invention, in the grip of the operation lever according to the first invention, the inner member is made of polyvinyl chloride and the outer member is made of polypropylene.

  According to a third invention, in the grip of the operating lever of the first invention or the second invention, the inner member is provided with a through hole that partially penetrates the inner and outer peripheral surfaces in a portion excluding the locking portion, A gap is formed between the outer member and the operation lever main body by the through hole.

  According to a fourth aspect of the present invention, in the grip of the operating lever according to the third aspect of the invention, the through hole is provided such that the side located relatively on the proximal end side of the operating lever body occupies a large area in the longitudinal direction of the inner member. It is characterized by. That is, when the inner member is divided into the distal end side and the proximal end side at the center in the longitudinal direction, the proximal end side may be provided so that the area of the through hole is larger than the distal end side.

  In such an operating lever grip, an elastically deformable resin inner member provided with a locking portion and a harder specific gravity than an inner member provided so as to cover the outer peripheral side of the inner member. Because it is composed of a small outer member made of resin, the locking part can get over the locked part due to elastic deformation of the inner member if there is some dimensional error when fitting to the operation lever body Thus, the grip can be easily assembled to the operation lever body. Moreover, since the outer member with a small specific gravity is provided in the outer peripheral side of the inner member, weight reduction can be achieved compared with the case where the whole is comprised with soft resin materials, such as a polyvinyl chloride. Furthermore, the inner member is commonly used for a plurality of types (for example, vehicle types) of operating levers, while the outer member is changed in design shape for each type (for example, for each vehicle type), thereby reducing costs by sharing parts. Can be planned.

  In the second aspect of the invention, since the inner member is made of polyvinyl chloride, the inner member is favorably maintained regardless of dimensional errors due to elastic deformation of the inner member, while the outer member has a small specific gravity (about 0.9) ) Because it is made of polypropylene, it can be made lighter than the case where the entire grip is made of polyvinyl chloride having a specific gravity of about 1.4.

  In the third invention, a through hole is partially provided in a portion excluding the locking portion of the inner member, and a gap is formed between the outer member and the operation lever body, so that the assembly strength by the locking portion is maintained. However, further weight reduction and material cost reduction can be achieved. In general, the operation lever is often operated by gripping the distal end side, but in the fourth invention, the side where the through hole is located on the proximal end side of the operation lever main body is provided so as to occupy a large area. Therefore, it is possible to reduce the weight and the material cost by the air gap while suppressing the influence on the operability as much as possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining an operation lever for a parking brake to which a grip is mounted according to an embodiment of the present invention; (a) is a side view seen from the left side of the vehicle; (b) is a front end portion provided with a grip. It is sectional drawing expanded and shown. 1 is a cross-sectional view of the operation lever of FIG. 1, (a) is a cross-sectional view taken along the line IIA-IIA in FIG. 1 (b), and (b) is a cross-sectional view taken along the line IIB-IIB in FIG. (C) is a sectional view taken along the line IIC-IIC in FIG. 1 (b), and (d) is a sectional view taken along the line IID-IID in FIG. 1 (b). FIG. 2 is a diagram showing a state before the grip is attached to the operation lever body in the embodiment of FIG. 1, (a) is a cross-sectional view of the grip, and (b) is a cross-sectional view of a tip portion of the operation lever body. This corresponds to FIG. It is a figure explaining the other Example of this invention, and is sectional drawing of the grip corresponding to Fig.3 (a). 4 is a cross-sectional view of the state in which the grip of FIG. 4 is attached to the operation lever body, and is a cross-sectional view corresponding to the four arrow portions in FIG. 1 (b), and (a) is a cross-section of the IIA-IIA arrow view portion. (B) is a cross-sectional view of the IIB-IIB arrow portion, (c) is a cross-sectional view of the IIC-IIC arrow portion, and (d) is a cross-sectional view of the IID-IID arrow portion.

  The present invention is preferably applied to, for example, an operation lever for a parking brake which is disposed in a center console portion next to the driver's seat and whose tip gripping portion is in a substantially horizontal posture when the parking brake is not operated. Operation lever for parking brake, other operation lever for vehicles such as shift lever, or other operation lever for vehicles other than the vehicle, such as a shift lever. It can also be applied to. The distal end portion (portion to which the grip is attached) of the operation lever main body is constituted by, for example, a metal cylinder or the like, but may be a solid thick plate material or the like. The grip may have a bottomed cylindrical shape so as to close the distal end of the operation lever main body, but the distal end side of the operation lever may be opened in a cylindrical shape with both axial ends open.

  The inner member provided with the locking part is made of a resin that is softer and has a higher specific gravity than the outer member. For example, polyvinyl chloride (PVC) is preferably used, but other resin materials such as thermoplastic elastomer (TPE) are used. You can also For example, polypropylene (PP) is preferably used as the outer member, but other resin materials such as acrylonitrile / butadiene / styrene copolymer (ABS), polyamide (PA), polystyrene (PS), etc. may be employed. it can. Regarding the combination of both, for example, PVC inner member × PP outer member, PVC inner member × ABS outer member, PVC inner member × PA outer member, PVC inner member × PS outer member, TPE inner member A member × PP outer member, TPE inner member × ABS outer member, TPE inner member × PA outer member, and the like are suitable.

  The outer member can be fixed integrally to the inner member by welding or the like at the same time as molding, but the synthetic resin material of the outer member wraps around the notch provided in the inner member and hardens. In addition, the inner member can be detachably coupled without being fixed. The inner member and the outer member may be molded separately and then fixed together with an adhesive or the like. If possible, the outer member may be molded by two-color molding (double molding) following the inner member. Anyway.

  The cylindrical shape of the inner member is set according to the shape of the tip of the operation lever body. For example, a cylindrical shape such as a circular shape or an elliptical shape is generally used, but a rectangular tube shape such as a square shape can also be used. It is. For example, the inner member is fitted to the tip of the operation lever body so that the inner circumferential surface is in close contact with the outer circumferential surface of the operation lever body, but the operation lever body and the inner member are partially You can just touch it.

  The locked portion provided on the operating lever body has an inclined portion on the front side in the fitting direction so that the locking portion can easily ride on the locked portion when the grip is fitted to the operating lever body. A locking claw such as a saw tooth is suitable. For example, a metal operation lever main body is cut into a U-shape or a U-shape and bent outward so that the locked portion (locking) Nail). As the locking portion, an engagement protrusion or the like that protrudes toward the inner peripheral side of the inner member so as to be locked at the tip of the locking claw is appropriate. A recess or an engagement hole may be simply provided as the locked portion, and an engagement protrusion provided on the inner peripheral surface of the inner member may be fitted and locked in the recess or the engagement hole. Various aspects are possible.

  In the third invention, the inner member is provided with a through hole so that a gap is formed between the outer member and the operation lever. In the fourth invention, the inner member is relatively operated in the longitudinal direction. The through holes are provided so that the side located on the base end side of the lever body occupies a large area. The number and shape of the through holes are appropriately determined so as not to impair the operability of the operation lever. In the first invention and the second invention, such a through hole is not necessarily required.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram for explaining an operation lever 14 for a parking brake in which a grip 10 according to an embodiment of the present invention is mounted on an operation lever main body 12. FIG. 1 (a) is a side view of the operation lever 14 as viewed from the left side of the vehicle. FIG. 4B is an enlarged cross-sectional view of the tip portion where the grip 10 is provided. FIG. 2 is a cross-sectional view of the operation lever 14 of FIG. 1, where (a) is a cross-sectional view taken along the line IIA-IIA in FIG. 1 (b), and (b) is IIB in FIG. 1 (b). -IIB is a cross-sectional view taken along the arrow, (c) is a cross-sectional view taken along the IIC-IIC as seen from FIG. 1 (b), and (d) is a cross-sectional view taken along the IID-IID in FIG. 1 (b). . 3 is a view showing a state before the grip 10 is attached to the operation lever main body 12 in the embodiment of FIG. 1, wherein (a) is a cross-sectional view of the grip 10 and (b) is a state of the operation lever main body 12. It is sectional drawing of a front-end | tip part.

  The operation lever 14 is disposed at the center console portion next to the driver's seat. The operation lever main body 12 has a base end portion 16 around a shaft center of a substantially horizontal support shaft 20 by a support member (sector or the like) 18. A grip portion 24 that is supported by the driver is configured by being rotatably supported and by fitting the grip 10 to the cylindrical tip portion 22 so as to be integrally mounted. When the parking brake is not actuated, as shown in FIG. 1 (a), the grip portion 24 is held at the original position protruding substantially horizontally toward the front side of the vehicle (left direction in the figure), while being gripped by the driver. The part 24 (grip 10) is gripped and raised upward, and is rotated clockwise around the support shaft 20, thereby pulling a brake cable (not shown) and operating the parking brake. A release knob 25 that is pushed in when releasing the parking brake is disposed at the front end of the operation lever body 12 so as to protrude from the front end of the cylindrical grip 10. A pole and a ratchet for maintaining the operating state of the brake, a release rod for releasing the operation, and the like are disposed. The operation lever main body 12 is configured by rounding a metal plate material or using a metal pipe, and the distal end portion 22 has a cylindrical shape.

  The grip 10 is integrally provided with a cylindrical outer member 28 covering the inner member 26 on the outer peripheral side of the cylindrical inner member 26, and is provided on the outer peripheral side of the distal end portion 22 of the operation lever main body 12. It is fitted and integrated. The inner member 26 is made of polyvinyl chloride, which is a relatively soft resin that can be elastically deformed, and the outer member 28 is made of polypropylene that is harder and has a lower specific gravity than the inner member 26. For example, the inner member 26 and the outer member 28 are formed by molding the inner member 26 and then forming the outer member 28 by two-color molding (double molding). It can be fixed.

  As is apparent from FIG. 3 (b), there are a total of six locking claws in the longitudinal direction at two positions above and below the distal end portion 22 of the operating lever body 12 to which the grip 10 is attached. 30 is provided. This locking claw 30 corresponds to a locked portion, and each is cut into a U-shape or a U-shape so as to penetrate inside and outside of the cylindrical shape, and the inside thereof is bent in a cantilever shape substantially in parallel. It is raised and connected to the operating lever main body 12 at the front end side (front end side of the operating lever main body 12; left side in FIG. 3 (b)) in the fitting direction to be fitted to the grip 10, and its connecting portion Is inclined in a sawtooth shape so that it can be easily ridden when the grip 10 is fitted. On the other hand, in the inner peripheral surface of the inner member 26 of the grip 10, recesses 32 into which the locking claws 30 are fitted are provided at a total of six locations corresponding to the locking claws 30, respectively. And the protrusion part which protrudes to the inner peripheral side so that the wall of each fitting direction front side (right side in FIG. 3 (a)) of these recesses 32 may comprise the latching | locking part 34, and the grip 10 Is engaged with the distal end portion 22 of the operation lever main body 12, and the engaging portion 34 gets over the engaging pawl 30 by the elastic deformation of the inner member 26 including the engaging portion 34, and the assembly position shown in FIG. When the inner member 26 is elastically restored so that the respective latching claws 30 are accommodated in the recesses 32, the six latching portions 34 are respectively latched at the tips of the latching claws 30 and the grip 10 is removed. Stopped.

  As described above, in the grip 10 of this embodiment, the inner member 26 made of an elastically deformable resin (polyvinyl chloride) provided with the locking portion 34 and the outer peripheral side of the inner member 26 are covered. Since the outer member 28 is made of a resin (polypropylene) that is harder and has a lower specific gravity than the inner member 26 provided, there is a slight dimensional error when fitting the front end portion 22 of the operation lever body 12. If there is, the locking portion 34 can get over the locking claw 30 by elastic deformation of the inner member 26, and the grip 10 can be easily assembled to the operation lever main body 12.

  Further, since the outer member 28 having a small specific gravity is provided on the outer peripheral side of the inner member 26, the weight can be reduced as compared with the case where the whole is integrally formed of the same polyvinyl chloride as the inner member 26. it can.

  Further, while the inner member 26 is commonly used for a plurality of vehicle types, the outer member 28 can be reduced in cost by sharing parts by changing the design shape for each vehicle type.

  Next, another embodiment of the present invention will be described. In the following embodiments, parts that are substantially the same as those in the above embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  4 and 5, the inner member 26 has a pair of through holes 42 as compared with the grip 10, and the through holes 42 allow the inner peripheral surface of the outer member 28 and the outer peripheral surface of the operation lever body 12 to be provided. Is different in that a gap 44 is formed between the two. The through-hole 42 is provided so as to penetrate the inner and outer peripheral surfaces in a portion excluding the upper and lower side walls provided with the recess 32 and the locking portion 34, that is, on both right and left side wall portions. Further, a long hole in the longitudinal direction of the grip 40 and a side (right side in FIG. 4) located relatively on the proximal end side of the operation lever main body 12 in the longitudinal direction of the inner member 26 occupy a large area. It is biased toward the base end side. FIG. 4 is a cross-sectional view corresponding to FIG. FIG. 5 is a cross-sectional view of the state where the grip 40 is mounted on the operation lever main body 12, and is a cross-sectional view corresponding to the four arrow portions in FIG. 1 (b), where (a) is IIA-IIA. (B) is a sectional view of the IIB-IIB arrow portion, (c) is a sectional view of the IIC-IIC arrow portion, and (d) is a sectional view of the IID-IID arrow portion. .

  Also in such a grip 40, the same effect as the said Example is acquired. In addition, since the through holes 42 are provided in the left and right side wall portions excluding the recess 32 and the locking portion 34 of the inner member 26, and a gap 44 is formed between the outer member 28 and the operation lever body 12, It is possible to further reduce the weight and reduce the material cost while maintaining the assembly strength of the locking portion 34 and the locking claw 30. In general, the operation lever 14 is often operated by gripping the distal end side, but the through hole 42 is provided so that the side located on the proximal end side of the operation lever body 12 occupies a large area. Therefore, it is possible to reduce the weight and the material cost by the gap 44 while suppressing the influence on the operability as much as possible.

  As mentioned above, although the Example of this invention was described in detail based on drawing, these are one Embodiment to the last, This invention is implemented in the aspect which added the various change and improvement based on the knowledge of those skilled in the art. be able to.

  DESCRIPTION OF SYMBOLS 10, 40: Grip 12: Operation lever main body 14: Operation lever 22: Tip part 26: Inner member 28: Outer member 30: Locking claw (locked part) 34: Locking part 42: Through hole 44: Gap

Claims (4)

A cylindrical portion is fitted to the outer peripheral side of the distal end portion of the operating lever body, and a locking portion that is locked to the locked portion of the operating lever body is provided on the inner peripheral surface of the cylindrical shape. When the engaging portion is fitted to the operating lever body, the locking portion gets over the locked portion due to elastic deformation, and at the assembly position, the locking portion is elastically restored and the locking portion is locked. In the grip that is prevented from coming off by being locked to the part and is integrally attached to the operation lever body,
An elastically deformable resin-made inner member fitted with the locking portion so as to be in close contact with the outer peripheral side of the operation lever body;
An outer member made of a resin that is provided so as to cover the outer peripheral side of the inner member, is harder and has a lower specific gravity than the inner member,
An operating lever grip characterized by comprising: The grip of the operating lever according to claim 1, wherein the inner member is made of polyvinyl chloride and the outer member is made of polypropylene. The inner member is provided with a through hole that partially penetrates the inner and outer peripheral surfaces in a portion excluding the locking portion, and a gap is formed between the outer member and the operation lever body by the through hole. The grip of the operating lever according to claim 1 or 2, wherein: 4. The operation lever according to claim 3, wherein the through hole is provided such that a side relatively positioned on a proximal end side of the operation lever main body in the longitudinal direction of the inner member occupies a large area. Grip.

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