JP2006044513A - Knob attaching structure and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a knob attaching structure capable of improving work easiness by preventing coming off of a pin at the time of attachment of a shift knob. <P>SOLUTION: In this structure, the knob is inserted into an upper end portion of a lever 10, and attached to the lever 10 by engaging an expandable pin 16 with an engaging groove formed at positions corresponding to both. A contact point to a lever 10 outer peripheral surface of the pin 16 when inserted into the lever 10 of the knob is made to be positioned in an opposite direction to a coming-off direction of the pin 16 in regard to an axis O of the lever 10. In a process inserting the knob into the lever 10, component Ft of expanding force F acting in a normal direction on the contact point P of the pin 16 is acted in the opposite direction to the coming-off direction of the pin 16, so that the pin 16 is prevented from coming off when attaching the knob, and attaching work easiness of the knob can be improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mounting structure and a mounting method for a knob that is mounted on a shift lever of a shift device for an automobile, for example, with one touch.

  A mounting structure in which a shift knob can be mounted on a shift lever of a shift device for an automobile with one touch has been proposed by the present applicant or the like (Patent Document 1). The shift knob mounting structure and mounting procedure will be described below with reference to FIGS. 9A to 9C are side views showing how to install the shift knob according to the procedure, FIG. 10 is an enlarged sectional view taken along the line EE of FIG. 9A, and FIG. ) Of FIG. 12 is an enlarged sectional view taken along line FF in FIG.

  In FIG. 9, reference numeral 101 denotes a shift knob, and a pair of engaging grooves each having a notch groove which is long in the lateral direction are provided at opposite portions of the lower end side portion of the cylindrical core member 102 protruding downward from the knob body 101 a. A joint groove 103 (see FIG. 10) is formed, and a pair of rectangular engagement holes 104 are formed in a lower portion thereof. As shown in FIG. 10, an expandable pin 116 formed by bending a wire in a U shape in plan view is pre-engaged with the engagement groove 103 formed in the core member 102 of the shift knob 101. In the state before the shift knob 101 is attached to the shift lever 110, the arc-shaped bent portion 116 a of the pin 116 protrudes into the core member 102 of the shift knob 101.

  On the other hand, 110 is a shift lever made of metal pipe standing from a shift device (not shown), and the upper end side portion thereof is opposed to the opposite portion (the portion corresponding to the engaging groove 103 of the core member 102). A pair of engaging grooves 111 (see FIG. 12) having a notch groove shape that is long in the lateral direction are formed. A cylindrical knob cover 113 is inserted into the shift lever 110 in advance from above, and the opposite part of the inner peripheral surface of the knob cover 113 (the part corresponding to the engagement hole 104 of the core member 102). Is provided with a pair of engaging protrusions 114.

  Thus, in order to attach the shift knob 101 to the shift lever 110, as shown in FIG. 9A, the shift knob 101 in which the pin 116 is pre-engaged with the engaging groove 103 of the core member 102 is attached to the core member 102. Is inserted into the upper end of the shift lever 110. At this time, the knob cover 113 is inserted through the shift lever 110 in advance.

  That is, as shown in FIG. 9B, when the core member 102 of the shift knob 101 is fitted into the upper end portion of the shift lever 110 and the shift knob 101 is pushed down along the shift lever 110 in the direction of the arrow shown in FIG. As shown in FIG. 11, the bent portion 116a of the pin 116 that is pre-engaged with the engaging groove 103 of the core member 102 is brought into contact with the outer peripheral surface of the shift lever 110 and pushed outward in the radial direction. The shift knob 101 is allowed to move downward.

  When the pin 116 that moves downward together with the shift knob 101 while being pushed and spread by the shift lever 110 reaches the engagement groove 111 of the shift lever 110, the pin 116 engages with the engagement groove 111, as shown in FIG. Thus, since the pin 116 is restored to its original state by its elasticity, the pin 116 prevents the shift knob 101 from being pulled upward, and the shift knob 101 can be simply inserted into the shift lever 110. It is easily attached to the upper end portion of the shift lever 110 by a single operation.

  When the shift knob 101 is attached to the shift lever 110 as described above, the knob cover 113 that has been previously inserted into the shift lever 110 is lifted along the shift lever 110, and the engagement protrusion protruding from the inner peripheral surface thereof. When 114 is engaged with the engaging protrusion 104 formed on the core member 102 of the shift knob 101, the knob cover 113 covers the core member 102 from the outside as shown in FIG. As shown in FIG. 12, expansion of the pin 116 outward in the radial direction is suppressed by the presser portions 115 projecting at two opposite positions on the inner peripheral surface of the knob cover 113. 116 is prevented from dropping from the engagement grooves 103 and 111 and the shift knob 101 is not dropped from the shift lever 110 due to this.

JP 2002-362177 A

  However, in the conventional shift knob mounting structure shown in FIGS. 9 to 12, in the process of inserting the shift knob 101 into the shift lever 110, as shown in FIG. Since the contact point P of the pin 116 to the outer peripheral surface of the shift lever 110 is at a position offset by e in the removal direction of the pin 116 (leftward in FIG. 11) with respect to the axis O of the shift lever 110, this contact point. The component force F (component force in the attaching / detaching direction of the pin 116) Fs acting on the P in the normal line direction acts in the direction in which the pin 116 is removed, so that the pin 116 falls off when the shift knob 101 is mounted. As a result, there is a problem that workability deteriorates.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a knob mounting structure and a mounting method that can improve the workability by preventing the pins from dropping off when the shift knob is mounted. There is.

  In order to achieve the above object, according to the first aspect of the present invention, the knob is inserted into the upper end of the lever, and an expandable pin is engaged with an engaging groove formed at a position corresponding to the both. In the structure in which the knob is attached to the lever, the contact point of the pin with the outer peripheral surface of the pin when the knob is inserted into the lever is opposite to the direction in which the pin is pulled out with respect to the axis of the lever. It is configured to be positioned.

  According to a second aspect of the present invention, in the first aspect of the invention, the pin is formed in a substantially U shape in a plan view, and a plurality of bent portions are formed at opposing portions thereof, and a pair of left and right bent portions facing each other. The top of the portion is a contact point to the lever outer peripheral surface.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, a knob cover that suppresses the expansion of the pin when the knob is mounted is mounted on the knob.

  According to a fourth aspect of the present invention, in the state in which the pin that can be expanded is previously engaged in the engaging groove formed in the knob, the knob is extended on the outer peripheral surface of the lever, and the knob is extended to the upper end of the lever. In the method of mounting the knob on the lever by engaging the pin with an engaging groove formed on the lever, the outer peripheral surface of the pin when the knob is inserted into the lever. The contact point is located in the direction opposite to the direction in which the pin is pulled out with respect to the axis of the lever.

  According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the pin is formed in a substantially U shape in plan view, and a pin formed by forming a plurality of bent portions formed at opposing portions thereof is engaged with the knob. It is pre-engaged with a mating groove, and the top of the pair of left and right bent portions facing each other is used as a contact point with the outer peripheral surface of the lever.

  The invention according to claim 6 is the invention according to claim 4 or 5, wherein the knob cover is inserted into the lever prior to mounting the knob to the lever, and the knob cover is mounted on the knob after the knob is mounted. It is characterized by suppressing the expansion of the pin.

  According to the present invention, when the knob is inserted into the lever, the contact point of the pin with the outer peripheral surface of the pin is configured to be opposite to the direction in which the pin is pulled out with respect to the axis of the lever. In the process of inserting into the lever, the component force of the spreading force that acts in the normal direction on the contact point of the pin (the component force in the pin attachment / detachment direction) is in the direction opposite to the pin removal direction (direction to prevent pin removal) Works. As a result, the pin does not fall off when the knob is mounted, and the knob mounting workability is improved.

  Further, according to the present invention, since the expansion of the pin is suppressed by the knob cover attached to the knob after the knob is attached to the lever, it is possible to reliably prevent the knob from being detached from the lever after the attachment.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is an exploded perspective view showing a knob mounting structure according to the present invention, FIG. 2 is a cutaway side view thereof, FIG. 3 is an enlarged sectional view taken along line AA in FIG. 2, and FIG. FIGS. 5A to 5C are plan views of the pins.

  1 and 2, reference numeral 1 denotes a shift knob. The shift knob 1 is mainly composed of a skeleton not shown, an outer skin 17 covering the skeleton, and a shift button 16. The skeleton is integrally provided with a cylindrical core material 2, and a laterally long notch groove shape is formed in the opposing portion of the lower end side portion protruding downward from the knob body 1 a of the core material 2. A pair of engagement grooves 3 (see FIG. 4) is formed, and a pair of rectangular engagement holes 4 is formed in a lower portion thereof. Here, the core material 2 is integrally formed with a skeleton of a resin, and a longitudinally opposite portion of the inner peripheral surface above the engagement groove 3 is vertically arranged as shown in FIGS. 1 and 3. A fitting projection 5 having a rectangular cross section that is long in the direction is integrally formed. The knob body 1a is provided with a push-type knob button 6.

  On the other hand, in FIG. 1, reference numeral 7 denotes a floor tunnel portion (not shown) in the passenger compartment. An AT finisher 8 is installed in the floor tunnel portion 7, and the AT finisher 8 has an opening 9 that is long in the front-rear direction. Is formed. A shift lever 10 made of a metal pipe standing from a shift device (not shown) is inserted into the opening 9 of the AT finisher 8, and the shift knob 1 mounted on the upper end of the shift lever 10 is inserted. The driver shifts the shift lever 10 back and forth by gripping the driver to perform a required shift operation.

  Then, a pair of engaging grooves 11 (FIG. 4) that are long in the lateral direction are formed in opposing portions (portions corresponding to the engaging grooves 3 of the core member 2) on the upper end side portion of the shift lever 10. Reference) is formed, and a pair of fitting grooves 12 that are long in the vertical direction are formed in opposing portions. In addition, the upper end part of the shift lever 10 comprises the taper-shaped taper surface 10a.

  Further, a resin-made cylindrical knob cover 13 is inserted into the shift lever 10 from above, and opposite portions of the inner peripheral surface of the knob cover 13 (portions corresponding to the engagement holes 4 of the core member 2). ) Is provided with a pair of engaging projections 14 integrally therewith. Further, a pair of presser portions 15 projecting inward in the radial direction are integrally provided at opposing portions of the inner peripheral surface of the knob cover 13.

  Thus, the shift knob 1 inserts the core material 2 into the upper end portion of the shift lever 10 and engages the pin 16 in the engaging grooves 3 and 11 formed in the core material 2 and the shift lever 10 from the lateral direction. By fitting them together, they are attached to the upper end of the shift lever 10 and are prevented from coming off from the shift lever 10. At this time, the pair of fitting protrusions 5 projecting from the inner peripheral surface of the core member 2 of the shift knob 1 are formed into a pair of fitting grooves 12 formed in the shift lever 10 as shown in FIG. Therefore, the shift knob 1 is prevented from rotating, and the shift knob 1 is correctly attached to the shift lever 10 in a predetermined direction.

  Here, as shown in FIG. 5 (a), the pin 16 is configured to be able to be expanded by folding a wire in a U shape in a plan view, and an action portion extending left and right from the base end portion 16a. Two bent portions 16c and 16d are respectively formed in the opposing portions of 16b. The tops of the pair of left and right bent portions 16d having a narrower width between the two are portions that become contact points P (see FIG. 8) that contact the outer peripheral surface of the shift lever 10, and the positions thereof are shown in FIG. The axis of the shift lever 10 indicated by a point O is offset by e1 in the direction opposite to the direction in which the pin 16 is removed (downward in FIG. 5A).

  Next, a method for attaching the shift knob 1 to the shift lever 10 will be described with reference to FIGS.

  6A to 6C are side views showing the mounting method of the shift knob along the procedure, FIG. 7 is an enlarged sectional view taken along the line CC of FIG. 6A, and FIG. It is a DD line expanded sectional view.

  As shown in FIGS. 6A and 7, a pin 16 is inserted in advance from the lateral direction into a pair of engaging grooves 3 formed at opposite portions of the lower end side portion of the core 2 of the shift knob 1. In a state before the shift knob 1 is attached to the shift lever 10, the portion including at least the bent portions 16c and 16d of the left and right action portions 16b of the pin 16 is located on the shift knob 1 as shown in FIG. It protrudes into the core material 2. As shown in FIG. 6A, a knob cover 13 is inserted through the shift lever 10 from above in advance.

  Thus, in order to mount the shift knob 1 to the shift lever 10, as shown in FIG. 6B, the shift knob 1 in which the pin 16 is pre-engaged with the engaging groove 3 of the core member 2 is used. Is inserted into the upper end of the shift lever 10. At this time, the pair of fitting protrusions 5 protruding from the inner peripheral surface of the core member 2 are fitted into fitting grooves 12 formed at the upper end of the shift lever 10 as shown in FIG.

  If the shift knob 1 is pushed down along the shift lever 10 while maintaining the above state, as shown in FIG. 6B, the shift knob 1 is engaged with the engagement groove 3 of the core 2 in advance. As shown in FIG. 8, the bent portion 16d of the pin 16 is in contact with the outer peripheral surface of the shift lever 10 and pushed outward in the radial direction, thereby allowing the shift knob 1 to move downward.

  When the shift knob 1 is inserted into the shift lever 10, the apex of the bent portion 16 d, which is the contact point P of the pin 16 with the outer peripheral surface of the shift lever 10, is as described above with respect to the axis O of the shift lever 10. Since it is at a position offset by e1 in the direction opposite to the direction in which the pin 16 is pulled out (to the right in FIG. 8) (see FIGS. 5A and 8), as shown in FIG. The component force of the spreading force F acting in the normal direction (the component force in the attaching / detaching direction of the pin 16) Ft acts in the direction opposite to the direction in which the pin 16 is removed (in the direction to prevent the pin 16 from being removed). . For this reason, the pin 16 does not fall off the shift knob 1 when the shift knob 1 is inserted into the shift lever 10, and the shift knob 1 is mounted with good workability. As described above, since the tapered surface 10a is formed at the upper end portion of the shift lever 10, the shift lever 10 is smoothly provided between the left and right action portions 16b of the pin 16 from the upper end portion. It can enter and push the action part 16b of the pin 16 outward in the radial direction.

  When the pin 16 that moves downward together with the shift knob 1 while being pushed and spread by the shift lever 10 reaches the engagement groove 11 of the shift lever 10, the pin 16 engages with the engagement groove 11 and is shown in FIG. Thus, since the pin 16 is restored to its original state by its elasticity, the pin 16 prevents the shift knob 1 from being pulled upward, and the shift knob 1 can be simply inserted into the shift lever 10. Easily mounted with one touch at work.

  When the shift knob 1 is mounted on the upper end of the shift lever 10 as described above, the knob cover 13 inserted in advance in the shift lever 10 is lifted along the shift lever 10 in the direction of the arrow in FIG. 2 is engaged with an engagement hole 4 formed in the core member 2 of the shift knob 1, the knob cover 13 causes the core member 2 of the shift knob 1 from the outside as shown in FIG. As shown in FIG. 4, the pin 16 is attached to the lower part of the shift knob 1 so as to cover the inner periphery of the knob cover 13 and protrudes radially outward of the pin 16 by two pressing portions 15 that are opposed to each other. The expansion is suppressed, so that the pin 16 is prevented from dropping from the engaging grooves 3 and 11 and the shift knob 1 is not dropped from the shift lever 10 due to this.

  In this embodiment, the pin 16 having the shape shown in FIG. 5A is used. For example, pins 16 ′ and 16 ″ having the shape shown in FIGS. 5B and 5C are used. 5 (b) and 5 (c), the action portions 16b ′ and 16b ″ extending from the respective base end portions 16a ′ and 16a ″ to the left and right are opposed to each other. Two bent portions 16c ′, 16d ′ and 16c ″, 16d ″ are formed in the respective parts, and the top portions of the pair of left and right bent portions 16d ′, 16d ″ having a narrower width between the two are respectively provided with a shift knob. In the process of inserting 1 into the shift lever 10, it is a portion that becomes a contact point P that contacts the outer peripheral surface of the shift lever 10, and its position is indicated by a point O in FIGS. 5B and 5C. Direction opposite to the direction of pin 16 ', 16 " (FIG. 5 (b), the lower (c)) are respectively only e2, e3 offset.

  The present invention is not limited to the one-touch type attachment to the shift lever of the shift knob of the automobile shift device, but can be applied to the one-touch type attachment to the lever of the knob in any other device.

It is a disassembled perspective view which shows the knob mounting structure which concerns on this invention. It is a fracture | rupture side view which shows the knob mounting structure which concerns on this invention. It is an AA line expanded sectional view of FIG. FIG. 3 is an enlarged sectional view taken along line B-B in FIG. 2. (A)-(c) is a top view of a pin. (A)-(c) is a side view which shows the mounting method of the shift knob which concerns on this invention along the procedure. FIG. 7 is an enlarged cross-sectional view taken along the line CC of FIG. It is the DD sectional view taken on the line of FIG.6 (b). (A)-(c) is a side view which shows the mounting procedure of the shift knob in the conventional knob mounting structure along the procedure. It is the EE line expanded sectional view of Fig.9 (a). It is the FF line expanded sectional view of FIG.9 (b). It is the GG line expanded sectional view of FIG.9 (c).

Explanation of symbols

1 Shift knob (knob)
DESCRIPTION OF SYMBOLS 1a Knob main body 2 Core material 3 Engagement groove 4 Engagement hole 5 Engagement protrusion 6 Knob button 7 Floor tunnel part 8 AT finisher 9 AT finisher opening 10 Shift lever (lever)
DESCRIPTION OF SYMBOLS 11 Engagement groove 12 Engagement groove 13 Knob cover 14 Engagement protrusion 15 Press part 16 Pin 16a Pin base end part 16b Pin action part 16c, 16d Pin bending part 17 Outer skin e1 to e2 Offset amount of contact point of pin O Shift lever shaft center P Contact point

Claims (6)

In the structure in which the knob is mounted on the lever by inserting the knob into the upper end of the lever and engaging the expandable pin with an engaging groove formed at a position corresponding to both of them.
The knob is configured such that the contact point of the pin with the outer peripheral surface of the pin when the knob is inserted into the lever is positioned in a direction opposite to the direction in which the pin is pulled out with respect to the axis of the lever. Mounting structure.   The pin is formed in a substantially U shape in plan view, and a plurality of bent portions are formed at opposing portions thereof, and the tops of the pair of left and right bent portions facing each other are used as contact points with the outer peripheral surface of the lever. The knob mounting structure according to claim 1, wherein:   The knob mounting structure according to claim 1 or 2, wherein a knob cover for suppressing expansion of the pin in the mounted state of the knob is mounted on the knob. Inserting the knob into the upper end of the lever while spreading the pin on the outer peripheral surface of the lever with the pin that can be expanded in the engaging groove formed in the knob in advance, and forming the lever In a method of mounting the knob on the lever by engaging the pin in a formed engagement groove,
The knob is characterized in that the contact point of the pin with the outer peripheral surface of the pin when the knob is inserted into the lever is positioned in a direction opposite to the direction in which the pin is pulled out with respect to the axis of the lever. Wearing method.   A pair of left and right pins that are formed in a substantially U shape in plan view and formed with a plurality of bent portions formed in opposing portions thereof are previously engaged with the engaging grooves of the knob, and the pins are opposed to each other. The knob mounting method according to claim 4, wherein the top of the bent portion is a contact point to the outer peripheral surface of the lever.   6. The knob cover is inserted through the lever prior to the mounting of the knob on the lever, and the knob cover is mounted on the knob after the knob is mounted to suppress the expansion of the pin. How to install the knob.

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