JP2017017108A - Component positioning structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To position two or more components with high accuracy on a reference component.SOLUTION: A component positioning structure 60 includes the reference component 20 having positioning protrusions 65A to 65C, a first component 30 having first holes 85A to 85C, and a second component 40 having second holes 90A to 90C. The positioning protrusions 65A to 65C include a first positioning portion 70 on the base end side having a first width w1, a second positioning portion 75 on the front end side having a second width w2 narrower than the first width w1. The first holes 85A to 85C have dimensions corresponding to the first width w1 and second holes 90A to 90C have dimensions corresponding to the second width w2. A first component 30 is positioned in the first positioning portion 70 and the second component 40 is positioned in the second positioning portion 75.SELECTED DRAWING: Figure 3A

Description

  The present invention relates to a component positioning structure used in a vehicle switch device or the like.

  When assembling other parts to the reference part, a method of fixing using a fixing means such as a bolt nut or a locking claw is common. The operation of fixing by the fixing means is performed in a state where other parts are positioned at the regular assembly position with respect to the reference part. Patent Document 1 discloses a part assembly structure in which a positioning pin is provided in a reference part and a positioning hole is provided in another part to be assembled so that the other part can be easily positioned with respect to the reference part. ing.

JP-A-8-121430

  However, when two or more parts are assembled to the reference part, it is necessary to provide a positioning pin corresponding to each part on the reference part. Therefore, since it is necessary to secure a space for providing many positioning pins in the reference part, the degree of freedom in designing the reference part is reduced.

  An object of the present invention is to provide a component positioning structure capable of positioning two or more components with high accuracy on a reference component.

  The present invention provides a reference protrusion having a positioning protrusion including a first positioning portion on the proximal end side having a first width and a second positioning portion on a distal end side having a second width narrower than the first width. A component, a first component provided with a first hole having a size corresponding to the first width, and a second component provided with a second hole having a size corresponding to the second width, The first hole is press-fitted into the first positioning part to position the first part on the positioning protrusion, and the second hole is press-fitted into the second positioning part to insert the second part into the positioning protrusion. A component positioning structure is provided which is positioned on a part.

  According to this aspect, both the first hole of the first component and the second hole of the second component can be press-fitted and positioned in the same positioning protrusion provided in the reference component. Therefore, the first component and the second component can be reliably positioned with respect to the reference component. In addition, when positioning protrusions for positioning the first component and the second component are provided on the reference component, the positioning accuracy of the second component relative to the first component may decrease due to molding errors or the like. According to the aspect, it is possible to position the second part with high accuracy with respect to the first part. Further, it is not necessary to form a positioning protrusion for each component to be assembled on the reference component. Therefore, the number of positioning protrusions formed on the reference part can be reduced, and it is not necessary to secure a space for forming the reference part. Therefore, the degree of freedom in designing the reference part can be improved.

  The first positioning portion includes a first reference portion that is a part of an outer peripheral portion, and a first facing portion that faces the first reference portion, and the first facing portion extends in an axial direction. 1 protrusion part is provided, The 2nd positioning part is provided with the 2nd standard part which is a part of the perimeter part, and the 2nd counter part which counters the 2nd standard part, and the 2nd counter part has A second protrusion extending along the axial direction is provided, and the first width from the first reference portion to the first opposing portion is the second width from the second reference portion to the second opposing portion. The first reference portion is in contact with a part of the first hole, and the first protrusion is in pressure contact with the other part of the first hole. The component is positioned in the first positioning portion, the second reference portion is in contact with a part of the second hole, and the second protrusion is in the second hole. Is pressed against the other part, the second part is positioned in the second positioning portion. According to this aspect, the width from the second reference portion to the second facing portion of the second positioning portion is smaller than the width from the first reference portion to the first facing portion of the first positioning portion. Therefore, when positioning the first part on the positioning protrusion of the reference part, the edge of the first hole of the first part does not interfere with the second protrusion of the second positioning part, and the first positioning part The first hole can be press-fitted.

  The first positioning portion or the first hole is plastically deformed by press-fitting the first positioning portion into the first hole, and the second positioning portion is press-fitted into the second hole. The protrusion or the edge of the second hole is plastically deformed, and the first part and the second part are positioned with respect to the reference part. According to this aspect, it is possible to position the first component and the second component with respect to the reference component without rattling. In particular, when positioning the second protrusion of the second positioning part by plastic deformation, it is possible to prevent the first part from interfering with the second protrusion by setting the width of the first positioning part and the second positioning part. The second protrusion can be prevented from being plastically deformed by the arrangement of the first component. Therefore, when the second part is press-fitted into the second positioning portion, positioning can be performed without rattling.

  The dimension of the first positioning part from the first reference part to the tip of the first protrusion is larger than the dimension of the second positioning part from the second reference part to the tip of the second protrusion. The dimension of the first part in the first hole in the direction corresponding to the width direction of the first positioning part is a dimension from the second reference part of the second positioning part to the tip of the second protrusion. It is larger and smaller than the dimension from the first reference portion of the first positioning portion to the tip of the first protrusion. According to these aspects, when the first part is positioned with respect to the reference part, it is possible to reliably prevent the edge of the first hole from interfering with the second positioning part. In addition, the first positioning portion can be press-fitted into the first hole for reliable positioning.

  A step portion serving as a boundary between the first positioning portion and the second positioning portion is provided on the second facing portion side of the second positioning portion, and a gap is provided between the step portion and the second component. Positioning means for positioning the second part is provided so as to be formed. Here, when the second positioning part is press-fitted into the second hole of the second part, the second protrusion or the second hole may be plastically deformed to cause a separation piece (shaving residue). If the separation piece enters between the first part and the second part, the second part cannot be positioned at the assembly position set with respect to the first part. And according to this aspect, the clearance gap formed between a step part and the said 2nd component can be made into the accommodation space which accommodates a separation piece. Therefore, since the separation piece can be prevented from entering between the first part and the second part, the first part and the second part can be positioned with high accuracy at the assembly position set by the reference part.

  The stepped portion is inclined outward from the distal end side to the proximal end side of the positioning protrusion. According to this aspect, when positioning the first component on the reference component, the inclined step portion functions as a guide portion that guides to the assembly position where the first component is set. Specifically, when the edge of the first hole of the first component interferes with the stepped portion, the first component moves to the assembly position set along the inclined stepped portion. Therefore, assembly workability can be improved.

  In the first positioning portion and the second positioning portion, the first protrusion and the second protrusion protrude in the same direction, and the first reference portion and the second reference portion are arranged on the same straight line. Has been. Further, two or more positioning protrusions are provided on the reference component, and the first reference part and the second reference part of the positioning protrusions are arranged on the same plane. According to this aspect, the positioning accuracy of the first component and the second component relative to the reference component and the positioning accuracy of the second component relative to the first component can be further improved.

  The second positioning portion has a D-shaped cross section with the second facing portion as a flat surface by cutting out the outer peripheral portion on the distal end side of the positioning protrusion, and the second facing portion is viewed from the front. And the said 1st protrusion and the said 2nd protrusion are arrange | positioned on the same straight line. According to this aspect, since the reference portion side serving as a reference when assembling is formed by a continuous circular arc surface having the same diameter, the edges of the first hole and the second hole are in line contact. Therefore, positioning can be performed with higher accuracy.

  The vehicle switch device using the component positioning structure of the present invention includes a first positioning portion on the base end side having a first width, and a positioning protrusion having a second width narrower than the first width. A base member having a printed circuit board having a first hole having a dimension corresponding to the first width; a cover member having a second hole having a dimension corresponding to the second width; and the cover member. And an operating member for operating a switch mounted on the printed circuit board.

  In the component positioning structure of the present invention, both the first component and the second component are press-fitted and positioned in the positioning protrusion provided on the reference component, so that the first component and the second component are positioned higher than the reference component. Positioning with high accuracy. In addition, the reference part is effective in terms of space because it is not necessary to provide a positioning protrusion for each part, and the degree of freedom in designing the reference part can be improved.

The disassembled perspective view which shows the switch apparatus for vehicles using the component positioning structure of this invention. The front view which positioned the printed circuit board in the base member. The front view which positioned the printed circuit board and the cover member in the base member. The fragmentary sectional view which shows the state before an assembly | attachment. The fragmentary sectional view which shows an assembly | attachment state. FIG. 3B is a partial cross-sectional view enlarging a part of FIG. 3B. The front view of a base member. The perspective view of the protrusion for positioning of 1st Embodiment. The front view of the protrusion part for positioning of 1st Embodiment. The side view of the protrusion part for positioning of 1st Embodiment. The front view of a printed circuit board. The front view of a cover member. The rear view of a cover member. The front view of the protrusion part for positioning of 2nd Embodiment. The top view of the protrusion part for positioning of 2nd Embodiment. The front view of the protrusion part for positioning of 3rd Embodiment. The top view of the protrusion part for positioning of 3rd Embodiment. The top view of the protrusion part for positioning of 4th Embodiment. The front view of the protrusion part for positioning of 5th Embodiment. The top view of the protrusion part for positioning of 5th Embodiment. The top view of the protrusion part for positioning of 6th Embodiment. The front view of the protrusion for positioning of 7th Embodiment. The top view of the protrusion part for positioning of 7th Embodiment. The top view of the protrusion part for positioning of 8th Embodiment. The front view of the protrusion for positioning of 9th Embodiment. The top view of the protrusion for positioning of 9th Embodiment. The top view of the protrusion part for positioning of 10th Embodiment. The top view of the protrusion for positioning of 11th Embodiment. The top view of the other protrusion for positioning of 11th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 3C show the vehicle switch device 10 using the component positioning structure 60 according to the first embodiment of the present invention. The component positioning structure 60 includes positioning protrusions 65A to 65C provided in the reference component and positioning holes 85A to 85C and 90A to 90C provided in the first component and the second component. The one part and the second part are positioned with high accuracy. The vehicle switch device 10 includes a base member 20 that is a reference component, a printed circuit board 30 that is a first component, and a cover member 40 that is a second component. The vehicle switch device 10 includes a dial knob and a switch knob 50 (not shown) as operation members for operating the switch 31 mounted on the printed circuit board 30.

(Details of vehicle switch device)
The switch device 10 for vehicles is arrange | positioned at the center panel of a vehicle, for example, and operates (controls) the air conditioner which adjusts the temperature of vehicle interior temperature. Inside the base member 20, after the printed board 30 is arranged at the set position as shown in FIG. 2A, a cover member 40 is arranged so as to cover the printed board 30 as shown in FIG. 2B. As shown in FIGS. 3A to 3C, the printed circuit board 30 and the cover member 40 are positioned at set positions by positioning protrusions 65 </ b> A to 65 </ b> C provided on the base member 20. The opening of the base member 20 is closed by assembling the vehicle switch device 10 to the center panel.

  As shown in FIG. 1 and FIG. 4A, the base member 20 is closed by a blocking wall 22 on the back side of the outer peripheral wall 21 having a substantially rectangular tube shape. The blocking wall 22 is provided with three cylindrical portions 23 </ b> A to 23 </ b> C that rotatably arrange the dial knob. A connector insertion portion 24 that exposes the connector 32 of the printed circuit board 30 from the back side is provided on the left side of the central cylindrical portion 23B. The base member 20 is provided with four bosses 25 for fixing the printed circuit board 30 and the cover member 40 with screws 26. The boss 25 also has a function of positioning means for positioning the printed circuit board 30 at the set position of the base member 20.

  As shown in FIGS. 1 and 5, the printed circuit board 30 receives an operation of the dial knob and the switch 31, and outputs a signal corresponding to the operation to the main microcomputer of the vehicle. The main microcomputer controls the air conditioner according to the input operation signal. Mounted on the printed circuit board 30 are a switch 31 that receives an operation of the switch knob 50, a connector 32 that is electrically connected to the main microcomputer, and an LED 33 that displays an operating state and a setting state of the air conditioner. Further, the printed circuit board 30 is provided with a through groove 34 through which the central dial knob penetrates and notches 35, 35 through which the dial knobs on both sides are penetrated. The printed circuit board 30 is provided with screw holes 36 through which the screws 26 penetrate at positions corresponding to the four bosses 25.

  As shown in FIGS. 1 and 6A, the cover member 40 is assembled inside the base member 20 so as to cover the printed board 30, thereby preventing water or the like from adhering to the printed board 30. The cover member 40 is provided with a knob guide 41 that holds the switch knob 50 so as to be able to advance and retract. The knob guide 41 has a rectangular tube shape, and penetrates the operation portion 51 of the switch knob 50 so as to protrude toward the printed circuit board 30 and serves as an optical path for guiding the light of the LED 33 to the front side. The cover member 40 is provided with a cylindrical illumination hole 42 that guides the light of the other LEDs 33 of the printed circuit board 30 to the front side. Further, the cover member 40 is provided with a through hole 43 through which the central dial knob passes and notches 44, 44 through which the dial knobs on both sides are passed. Further, the cover member 40 is provided with screw holes 45 through which the screws 26 penetrate at positions corresponding to the four bosses 25.

  When the vehicle switch device 10 is assembled with the base member 20 in a state in which the cover member 40 is displaced from the set position, the opening of the center panel and the position of the switch knob 50 do not match and can be assembled normally. Can not. Further, when the cover member 40 is assembled to the printed circuit board 30 in a state shifted from the set position, the position of the switch knob 50 does not coincide with the switch 31 and cannot be operated normally.

  Therefore, by providing the component positioning structure 60 on the base member 20, the printed board 30, and the cover member 40, the printed board 30 and the cover member 40 are positioned at the set position with respect to the base member 20. In this positioning state, the printed board 30 and the cover member 40 are fixed to the base member 20 by passing the screws 26 from the cover member 40 side and tightening them with respect to the boss 25.

(Details of part positioning structure)
As shown in FIGS. 2A to 3B, the component positioning structure 60 includes positioning protrusions 65 </ b> A to 65 </ b> C provided on the base member 20, and first positioning holes 85 </ b> A to 85 </ b> C that are first holes provided on the printed circuit board 30. And second positioning holes 90 </ b> A to 90 </ b> C that are second holes provided in the cover member 40. The positioning protrusions 65A to 65C are sequentially pressed into the first positioning holes 85A to 85C and the second positioning holes 90A to 90C, so that the printed circuit board 30 and the cover member 40 are inserted into the base member 20. Is positioned at the set position.

  As shown in FIG. 4A, the positioning protrusions 65 </ b> A to 65 </ b> C are provided at three positions on the upper portion of the blocking wall 22 of the base member 20 with a space in the lateral (left / right) direction. The first positioning protrusion 65A is provided between the right cylindrical portion 23A and the central cylindrical portion 23B. The second positioning protrusion 65B is provided between the central cylindrical portion 23B and the left cylindrical portion 23C. The third positioning protrusion 65C is provided between the central cylindrical portion 23B and the first positioning protrusion 65A. Among them, the first and second positioning protrusions 65 </ b> A and 65 </ b> B are formed with a full length penetrating the printed circuit board 30 and the cover member 40. The third positioning protrusion 65 </ b> C is formed in a full length that does not penetrate the cover member 40, although it penetrates the printed circuit board 30.

  As shown in FIG. 5, the printed circuit board 30 is provided with first positioning holes 85A to 85C at three locations corresponding to the first to third positioning protrusions 65A to 65C. Among them, the first positioning holes 85A and 85B are defined by a pair of linear edges 86 and 86 extending in parallel and a pair of arc edges 87 and 87 extending toward both ends thereof. The first positioning holes 85A and 85B are oval through holes extending in the lateral direction in FIG. The first positioning hole 85C is defined by a pair of linear edges 88 and 88 extending in parallel from the outer peripheral edge of the printed circuit board 30, and one end edge 89 extending toward the lower ends thereof. The first positioning hole 85C is a U-shaped (semi-ellipse-shaped) through-groove hole whose upper end is opened in FIG.

  In FIG. 5, the width (dimension) W1 of the first positioning holes 85A and 85B in the vertical (vertical) direction and the width W2 of the first positioning hole 85C in the horizontal direction in FIG. Yes. The width direction of the first positioning holes 85 </ b> A to 85 </ b> C is a regulation direction for positioning the printed circuit board 30. In other words, the vertical direction of the printed circuit board 30 is regulated by the first positioning holes 85A and 85B, and the horizontal direction is regulated by the first positioning holes 85C.

  As shown in FIGS. 6A and 6B, the cover member 40 is provided with second positioning holes 90A to 90C at three locations corresponding to the first to third positioning protrusions 65A to 65C. Among them, the second positioning holes 90A and 90B are defined by a pair of linear edges 91 and 91 extending in parallel and a pair of arc edges 92 and 92 extending toward both ends thereof. The second positioning holes 90A and 90B are substantially oval through holes extending in the lateral direction in FIG. 6A. As shown in FIG. 6B, the second positioning hole 90 </ b> C is formed on the surface of the cover member 40 that faces the printed board 30. 6C, the second positioning hole 90C is defined by a pair of first wall portions 93 and 93 extending in parallel in the vertical direction and a pair of second wall portions 94 and 94 extending in the lateral direction between both ends thereof. , Consisting of a non-through hole (indentation) surrounded by a generally rectangular shape.

  The width W3 of the second positioning holes 90A and 90B in the vertical direction in FIG. 6A and the width W4 of the second positioning holes 90C in the horizontal direction in FIG. 6B are formed identically. The widths W3 and W4 of the second positioning holes 90A to 90C are smaller than the widths W1 and W2 of the first positioning holes 85A to 85C (W3, W4 <W1, W2). The width direction of the second positioning holes 90 </ b> A to 90 </ b> C is a regulation direction for positioning the cover member 40. That is, the cover member 40 is regulated in the vertical direction by the second positioning holes 90A and 90B, and in the horizontal direction by the second positioning holes 90C.

  As shown in FIGS. 3A and 3B, each of the positioning protrusions 65 </ b> A to 65 </ b> C has a first positioning portion 70 on the base end side (closing wall 22 side) for positioning the printed circuit board 30 and a tip for positioning the cover member 40. And a second positioning portion 75 on the side (opening side). The first positioning unit 70 positions the printed circuit board 30 by being press-fitted (penetrated) into the first positioning holes 85A to 85C. The second positioning portion 75 positions the cover member 40 by being press-fitted into the second positioning holes 90A to 90C.

  4A to 4D in combination with FIG. 3A and FIG. 3B, the first positioning portion 70 protrudes in a direction orthogonal to the blocking wall 22 from the base portion 66 protruding in a columnar shape from the blocking wall 22. Is provided. The first positioning portion 70 has a cylindrical shape, and a part of the outer peripheral portion along the axis is in contact with one of the straight edges 86 and 88 of the first positioning holes 85A to 85C of the printed circuit board 30. Part 71. Further, the first positioning portion 70 is provided with a first protrusion 73 that protrudes outward beyond the first facing portion 72 that faces the first reference portion 71 in the radial direction. The first facing portion 73 includes not only the top portion farthest from the first reference portion 71 but also a set angle range including the top portion (for example, a range of ± 90 degrees centered on the top portion). The first protrusion 73 of the present embodiment protrudes with the first facing portion 72 as a base end, and is pressed against the straight edges 86 and 88 on the opposite side of the first reference portion 71 in the first positioning holes 85A to 85C. The Further, the first protrusion 73 is provided so as to extend along the axial direction from the upper end to the lower end of the first positioning portion 70.

  The second positioning portion 75 protrudes on the same axis from the tip of the first positioning portion 70. The second positioning portion 75 has a D-shaped cross section, and a part of the outer peripheral portion along the axial direction is one linear edge 91 of the second positioning holes 90A to 90C of the base member 20 or one first wall. The second reference portion 76 is in contact with the portion 93. Further, the second positioning portion 75 is provided with a second protrusion 78 that protrudes outward beyond the second facing portion 77 that faces the second reference portion 76 in the radial direction. The second facing portion 77 of this embodiment is a flat surface formed by cutting out a part of the outer peripheral portion of the second positioning portion 75 having the same diameter as the first positioning portion 70 in the axial direction. The second protrusion 78 protrudes with the flat second opposing portion 77 as a base end, and the straight edge 91 or the first wall portion opposite to the second reference portion 76 in the second positioning holes 90A to 90C. 93 is pressed. The second protrusion 78 is provided so as to extend along the axial direction from the lower end of the second positioning portion 75 toward the upper end side. The second protrusion 78 is formed with an overall height not penetrating through the second positioning holes 90A to 90C in a state where the cover member 40 is positioned.

  The first reference portion 71 and the second reference portion 76 are part of an outer peripheral portion having an arc shape in the first positioning portion 70 having a circular cross section and the second positioning portion 75 having a D shape in cross section. The reference portions 71 and 76 of the present embodiment are set so as to be located on the same straight line. The first facing portion 72 is a part of the arc-shaped outer peripheral portion of the first positioning portion 70 facing the first reference portion 71. The second facing portion 77 is the entire flat portion of the second positioning portion 75 facing the second reference portion 76. The 1st opposing part 72 and the 2nd opposing part 77 are mutually located in the same direction. The first protrusion 73 and the second protrusion 78 are provided so as to form a triangular shape in plan view from the facing parts 72 and 77. The first protrusion 73 and the second protrusion 78 are located at a predetermined interval in the radial direction as shown in FIG. 4C. However, when the facing parts 72 and 77 are viewed from the front as shown in FIG. It is arranged to be located on the line.

  As shown in FIG. 4A, the first positioning protrusion 65A is arranged such that the protrusions 73 and 78 protrude downward. The second positioning protrusion 65B is arranged such that the protrusions 73 and 78 protrude upward. The third positioning protrusion 65C is arranged such that the protrusions 73 and 78 protrude rightward. Accordingly, the first and second positioning protrusions 65A and 65B perform vertical positioning, and the third positioning protrusion 65C performs horizontal positioning. 4A, the reference portions 71 and 76 of the first positioning protrusion 65A and the reference portions 71 and 76 of the second positioning protrusion 65B are the same as those of the base member 20. It arrange | positions so that it may be located on the same plane P extended in a orthogonal direction with respect to the obstruction | occlusion wall 22, and extending in a horizontal direction.

  Here, the plane P is a surface extending horizontally in a state where the vehicle switch device 10 is attached to the vehicle, and serves as a reference surface when the vehicle switch device 10 is designed. The reference portions 71 and 76 of the first positioning protrusion 65A located at the upper right portion of the printed circuit board 30 and the cover member 40 are provided upward, and the second positioning protrusion located at the upper left portion. The reference portions 71 and 76 of 65B are provided facing downward. According to this configuration, when the printed circuit board 30 and the cover member 40 are positioned on the base member 20 during assembly, the screw 26 is inserted into the screw holes 36 and 45 from the cover member 40 side and tightened against the boss 25. , A clockwise rotating force acts on the printed circuit board 30 and the cover member 40. By providing the respective reference portions 71 and 76 on the side receiving the clockwise rotating force, the printed circuit board 30 and the cover member are provided. 40 can be accurately positioned along the reference plane P.

  As shown in FIG. 4C, the first width w1 from the first reference portion 71 to the first facing portion 72 of the first positioning portion 70 is the second reference portion 76 to the second facing portion 77 of the second positioning portion 75. It is formed larger than the second width w2 until (w1> w2). Referring to FIG. 2A, the width w1 of the first positioning portion 70 is smaller than the widths W1 and W2 of the first positioning holes 85A to 85C (w1 <W1, W2). Referring to FIG. 2B, the width w1 of the first positioning portion 70 is formed larger than the widths W3 and W4 of the second positioning holes 90A to 90C (w1> W3, W4). Further, the width w2 of the second positioning portion 75 is formed smaller than the widths W1 and W2 of the first positioning holes 85A to 85C and the widths W3 and W4 of the second positioning holes 90A to 90C (w2 <W1 W4).

  The dimension (full width) w3 from the first reference part 71 to the first protrusion 73 of the first positioning part 70 is formed larger than the dimension w4 from the second reference part 76 to the second protrusion 78 of the second positioning part 75. (W3> w4). The dimension w4 of the second positioning part 75 is formed smaller than the width w1 of the first positioning part 70 (w4 <w1). Referring to FIG. 2A, the dimension w3 of the first positioning portion 70 is formed larger than the widths W1 and W2 of the first positioning holes 85A to 85C (w3> W1, W2). Of course, the dimension w3 of the first positioning portion 70 is larger than the widths W3 and W4 of the second positioning holes 90A to 90C (w3> W3, W4). Referring to FIG. 2B, the dimension w4 of the second positioning portion 75 is formed larger than the widths W3 and W4 of the second positioning holes 90A to 90C (w4> W3, W4). The dimension w4 of the second positioning portion 75 is formed smaller than the widths W1 and W2 of the first positioning holes 85A to 85C (w4 <W1, W2).

  With reference to the first positioning holes 85A to 85C of the printed circuit board 30, the widths W1 and W2 of the first positioning holes 85A to 85C are larger than the width w1 of the first positioning portion 70 and the width w2 of the second positioning portion 75, respectively. It is formed large (w1, w2 <W1, W2). The widths W1 and W2 of the first positioning holes 85A to 85C are smaller than the dimension w3 of the first positioning part 70 and larger than the dimension w4 of the second positioning part 75 (w4 <W1, W2 <w3). ). With reference to the second positioning holes 90A to 90C of the cover member 40, the widths W3 and W4 of the second positioning holes 90A to 90C are smaller than the width w1 of the first positioning part 70, and the width of the second positioning part 75 It is formed larger than w2 (w2 <W3, W4 <w1). The widths W3 and W4 of the second positioning holes 90A to 90C are formed smaller than the dimension w3 of the first positioning part 70 and the dimension w4 of the second positioning part 75 (W3, W4 <w3, w4).

  The positioning protrusions 65A to 65C formed with such dimension settings are press-fitted into the positioning holes 85A to 85C and 90A to 90C depending on the material forming the base member 20 or the thickness of the protrusions 73 and 78, etc. Thus, the protrusions 73 and 78 are set to be plastically deformed. That is, the positioning protrusions 65 </ b> A to 65 </ b> C and the first positioning holes 85 </ b> A to 85 </ b> C position the printed circuit board 30 with respect to the base member 20 without rattling by the first protrusion 73 being plastically deformed by press-fitting. Further, the positioning protrusions 65A to 65C and the second positioning holes 90A to 90C position the cover member 40 relative to the base member 20 by the second protrusion 78 being plastically deformed by press-fitting.

  As shown in FIGS. 4A to 4D, a step 80 serving as a boundary between the first positioning portion 70 and the second positioning portion 75 is provided on the second facing portion 77 side of the second positioning portion 75. The step portion 80 includes an inclined surface that is inclined outward from the distal end side to the proximal end side of the positioning protrusions 65A to 65C. When the printed circuit board 30 is arranged in the first positioning portion 70, the stepped portion 80 causes the edges of the first positioning holes 85A to 85C to interfere with each other so that the first positioning holes 85A to 85C are formed along the inclination. It functions as a guide part that moves to the set assembly position. In the present embodiment, an inclined portion 74 that functions as a guide portion is also provided at the upper end of the first protrusion 73, and an inclined portion 79 that functions as a guide portion is also provided at the upper end of the second protrusion 78.

  3B and 3C, the cover member 40 is positioned with respect to the base member 20 so that a gap (accommodating space) 81 is formed between the cover member 40 and the step portion 80. The positioning means of this embodiment is a printed circuit board 30 that is positioned by the boss 25. The printed circuit board 30 is disposed so that the first positioning holes 85 </ b> A to 85 </ b> C are positioned on the outer peripheral portion of the stepped portion 80 by contacting the tip of the boss 25. By disposing the cover member 40 so as to contact the printed circuit board 30, a gap 81 surrounded by the inner walls of the first positioning holes 85A to 85C and the cover member 40 is formed.

  Next, assembly of the vehicle switch device 10 using the component positioning structure 60 will be described.

  First, the printed circuit board 30 is disposed on the opening side of the base member 20, and the positioning protrusions 65 </ b> A to 65 </ b> C of the base member 20 are inserted into the first positioning holes 85 </ b> A to 85 </ b> C of the printed circuit board 30. At this time, the edges (parts) of the first positioning holes 85A to 85C are brought into contact with the second reference portion 76 of the second positioning portion 75 that is positioned linearly with the first reference portion 71 of the first positioning portion 70. , Insert so that sliding contact. Thereby, the first positioning holes 85 </ b> A to 85 </ b> C of the printed circuit board 30 can be easily arranged in the first positioning portion 70 of the base member 20.

  In the present embodiment, the dimensions W1 and W2 of the first positioning holes 85A to 85C are larger than the dimensions w2 and w4 of the second positioning part 75 on the distal end side of the positioning protrusions 65A to 65C. Therefore, the edges of the first positioning holes 85A to 85C are arranged without sliding contact with the second reference portion 76, and the edges of the first positioning holes 85A to 85C interfere with the second protrusion 78 of the second positioning portion 75. Even so, it is possible to suppress the second protrusion 78 from being plastically deformed. Moreover, since the step part 80 which plays the role of a guide part is provided in the boundary part of the 2nd positioning part 75 and the 1st positioning part 70, 85 A-85C of 1st positioning holes are followed along the inclination of the step part 80. The (printed circuit board 30) can be guided to the set position. Therefore, assembly workability can be improved.

  2A and 3B, when the first positioning holes 85A to 85C are inserted to the first positioning portions 70 of the positioning protrusions 65A to 65C, the printed circuit board 30 is pressed against the base member 20. . Then, the 1st protrusion 73 contact | abuts the edge (other part) which 1st positioning hole 85A-85C opposes, and the 1st positioning part 70 85A of 1st positioning holes of the printed circuit board 30 is deformed plastically. Press fit into ~ 85C. Thereby, the printed circuit board 30 is positioned with respect to the base member 20 without rattling. Note that the press-fitting of the printed board 30 into the base member 20 ends in a state where the printed board 30 is in contact with the boss 25 of the base member 20.

  Next, the cover member 40 is disposed on the opening side of the base member 20, and the positioning protrusions 65 </ b> A to 65 </ b> C of the base member 20 are inserted into the second positioning holes 90 </ b> A to 90 </ b> C of the cover member 40. At this time, the edges (parts) of the second positioning holes 90 </ b> A to 90 </ b> C are brought into contact with the second reference portion 76 of the second positioning portion 75 and inserted so as to be in sliding contact. Thereby, the second positioning holes 90 </ b> A to 90 </ b> C of the cover member 40 can be easily arranged in the second positioning portion 75 of the base member 20.

  Further, the dimensions W3 and W4 of the second positioning holes 90A to 90C are larger than the dimension w2 of the second positioning portion 75 and smaller than the dimension w4. In addition, an inclined portion 79 is provided at the upper end of the second protrusion 78. Therefore, even if the edges of the second positioning holes 90A to 90C are arranged without sliding contact with the second reference portion 76, the second positioning holes 90A to 90C (cover members) are formed by the inclined portion 79 that serves as a guide portion. 40) can be guided to the set position.

  2B and FIG. 3B, when the second positioning holes 90A to 90C are inserted to the upper ends of the second protrusions 78 of the positioning protrusions 65A to 65C, the cover member 40 is attached to the base member 20. Press. Then, the second protrusion 78 comes into contact with the opposing edges (other parts) of the second positioning holes 90A to 90C, and the second positioning part 75 is in the second positioning hole 90A of the cover member 40 while being plastically deformed. Press fit into ~ 90C. Thereby, the cover member 40 is positioned relative to the base member 20 without rattling. Note that the press-fitting of the cover member 40 into the base member 20 ends when the cover member 40 is in contact with the printed circuit board 30.

  Here, when the first projecting portion 73 and the second projecting portion 78 are plastically deformed and the printed circuit board 30 and the cover member 40 are press-fitted, separation pieces (shaving chips) are generated from the first projecting portion 73 and the second projecting portion 78. Sometimes. The separation piece generated by assembling the printed circuit board 30 falls off to the closing wall 22 side of the base member 20. However, the separation piece generated by assembling the cover member 40 may enter between the cover member 40 and the printed circuit board 30. In this case, the cover member 40 cannot be positioned at the assembly position set with respect to the printed circuit board 30. On the other hand, in this embodiment, as shown in FIG. 3C, a gap 81 that functions as an accommodation space is formed between the step portion 80 and the cover member 40. Therefore, even if a separation piece is generated, it is held in the gap 81 and can be prevented from entering between the printed circuit board 30 and the cover member 40, so that the cover member 40 can be reliably assembled at the set position.

  When the printed circuit board 30 and the cover member 40 are thus positioned with respect to the base member 20, the screw 26 is inserted into the screw holes 36 and 45 from the cover member 40 side and tightened with respect to the boss 25. Thereby, the printed circuit board 30 and the cover member 40 can be fixed to the base member 20.

  Here, if the base member 20 is provided with a positioning protrusion for positioning the printed circuit board 30 and a positioning protrusion for positioning the cover member 40, the cover member 40 with respect to the printed circuit board 30 is formed due to a molding error or the like. Positioning accuracy may decrease. However, in the present embodiment, the first positioning holes 85A to 85C of the printed circuit board 30 and the second positioning holes 90A to 90C of the cover member 40 with respect to the same positioning protrusions 65A to 65C provided on the base member 20. Both 90C are press-fitted and positioned. Therefore, the printed circuit board 30 and the cover member 40 can be positioned at the set position with high accuracy with respect to the base member 20.

  Further, the positioning protrusions 65A to 65C need not be formed on the base member 20 for each part to be assembled. Therefore, since the number of positioning protrusions 65A to 65C formed on the base member 20 can be reduced, it is effective in terms of space, and the degree of freedom in designing the base member 20 can be improved. Moreover, the printed circuit board 30 and the cover member 40 that have been positioned are regulated in the vertical direction with respect to the base member 20 by the first and second positioning projections 65A and 65B, and the base member by the third positioning projection 65C. The horizontal direction is restricted with respect to 20. Therefore, it is possible to position the set position with high accuracy.

  In addition, since the dimensions W1 and W2 of the first positioning holes 85A to 85C of the printed circuit board 30 are larger than the dimension w4 to the tip of the second protrusion 78 of the second positioning portion 75 of the base member 20, When positioning the printed circuit board 30, the printed circuit board 30 can be disposed on the first positioning portion 70 without causing interference with the second protrusion 78. Moreover, even if it interferes with the 2nd protrusion 78, it can suppress that the 2nd protrusion 78 deforms plastically. Therefore, when the cover member 40 is press-fitted into the second positioning portion 75, the second protrusion 78 functions normally and can be reliably positioned without rattling.

  The second positioning portion 75 is formed in a D-shaped cross section by cutting out the outer peripheral portion on the distal end side of the positioning protrusions 65A to 65C, and the first positioning portion 70, the second positioning portion 75, The first reference part 71 and the second reference part 76 are arranged on the same straight line. Therefore, the assembly workability when arranging the printed circuit board 30 can be improved. Further, since the edges of the positioning holes 85A to 85C and 90A to 90C are in line contact with each other on the same straight line, positioning can be performed with high accuracy. Moreover, the positioning protrusions 65A and 65B of the base member 20 have the first reference portion 71 and the second reference portion 76 arranged on the same plane, so that the printed board 30 and the cover member 40 with respect to the base member 20 are disposed. The positioning accuracy and the positioning accuracy of the cover member 40 with respect to the printed circuit board 30 can be further improved.

(Second Embodiment)
7A and 7B show the positioning protrusion 65 of the component positioning structure 60 of the second embodiment. In the second embodiment, the circumferential positions of the first reference portion 71 of the first positioning portion 70 and the second reference portion 76 of the second positioning portion 75, the first protrusion 73 of the first positioning portion 70, 2 The difference from the first embodiment is that the projecting direction of the second projecting portion 78 of the positioning portion 75 is different.

  Specifically, the first positioning portion 70 has a columnar shape, and the upper end is the first reference portion 71 in FIG. 7B, and the first protrusion 73 is provided so as to protrude downward in FIG. 7B. The first positioning hole of the printed circuit board 30 is formed in an oval shape having straight edges on the first reference portion 71 side and the first protrusion 73 side, respectively.

  The second positioning portion 75 has a D-shaped cross section, the left end in FIG. 7B is the second reference portion 76, and the right side is cut out in FIG. 7B to form the second facing portion 77. And the 2nd protrusion part 78 is provided so that it may protrude rightward from the center of this flat 2nd opposing part 77. As shown in FIG. Note that the second positioning hole of the cover member 40 is formed in a substantially oval shape with straight edges on the second reference portion 76 side and the second protrusion 78 side, respectively.

(Third embodiment)
8A and 8B show the positioning protrusion 65 of the component positioning structure 60 of the third embodiment. In the third embodiment, the positions of the first reference portion 71 of the first positioning portion 70 and the second reference portion 76 of the second positioning portion 75, and the first protrusion 73 and the second positioning portion of the first positioning portion 70. 75 is different from the first embodiment in that the positions of the second protrusions 78 are arranged at opposite positions (opposite sides) in the radial direction.

  As shown in the second embodiment and the third embodiment, the first positioning portion 70 and the second positioning portion 75 are not limited to a configuration in which the reference portions 71 and 76 and the protrusions 73 and 78 are arranged on a straight line. . And even if it does in these ways, the effect | action and effect similar to 1st Embodiment can be acquired.

(Fourth embodiment)
FIG. 9 shows a positioning protrusion 65 of the component positioning structure 60 of the fourth embodiment. The fourth embodiment is different from the first embodiment in that a pair of second protrusions 78 are provided on the second facing portion 77 of the second positioning portion 75 having a flat surface. Thus, the 2nd protrusion 78 is not restricted to the structure provided in one place, You may provide in two places and may provide three or more. Of course, the number of the first protrusions 73 is not limited to one, and two or more may be provided. However, in the case of the first positioning portion 70 that protrudes the first protrusion 73 from the arcuate outer peripheral portion, at least one of the first positioning portions 70 cannot be protruded with the first facing portion 72 as a base end. And protrude outward.

(Fifth embodiment)
10A and 10B show a positioning protrusion 65 of the component positioning structure 60 of the fifth embodiment. The fifth embodiment is different from the first embodiment in that the second reference portion 76 of the second positioning portion 75 is a flat surface similar to the second facing portion 77. In the fifth embodiment, since the second reference portion 76 of the second positioning portion 75 is a flat surface, the cover member 40 can be reliably positioned with respect to the base member 20. Of course, the first reference portion 71 of the first positioning portion 70 may be a flat surface.

(Sixth embodiment)
FIG. 11 shows a positioning protrusion 65 of the component positioning structure 60 of the sixth embodiment. In the sixth embodiment, the first positioning portion 70 is provided with a pair of first protrusions 73 and 73, and the second positioning portion 75 is provided with a pair of second protrusions 78 and 78. Is different. Specifically, the first protrusions 73, 73 protrude from positions facing the radial direction of the cylindrical first positioning part 70. Similarly to the fifth embodiment, the second protrusions 78 and 78 protrude from the second reference portion 76 and the second facing portion 77 with the second reference portion 76 of the second positioning portion 75 as a flat surface. Thus, two or more first protrusions 73 of the first positioning portion 70 may be provided so as to protrude in different directions, and similarly, the second protrusion 78 of the second positioning portion 75 also protrudes in different directions. Two or more may be provided.

(Seventh embodiment)
12A and 12B show the positioning protrusion 65 of the component positioning structure 60 of the seventh embodiment. The seventh embodiment is different from the first embodiment in that the first positioning portion 70 and the second positioning portion 75 are formed in a columnar shape having different diameters. Specifically, the second positioning part 75 is formed in a columnar shape having the same axis as the axis of the first positioning part 70 and having a smaller diameter than the first positioning part 70. The first positioning portion 70 is provided with a first protrusion 73 that protrudes from a first facing portion 72 that faces the first reference portion 71. Similarly, the second positioning portion 75 is provided with a second protrusion 78 projecting from a second facing portion 77 that faces the second reference portion 76. And when the 1st protrusion 73 and the 2nd protrusion 78 are seen from a front side, these are arrange | positioned so that it may be located on a straight line. Thus, the 1st positioning part 70 and the 2nd positioning part 75 are not restricted to the structure based on the cylinder of the same diameter, You may form with a desired diameter.

(Eighth embodiment)
FIG. 13 shows the positioning protrusion 65 of the component positioning structure 60 of the eighth embodiment. The eighth embodiment is different from the first embodiment in that the first positioning portion 70 and the second positioning portion 75 are formed in a columnar shape having different diameters and are arranged so that their axis lines are not positioned on a straight line. To do. As described above, the first positioning unit 70 and the second positioning unit 75 may be arranged not only in diameter but also in different axes.

(Ninth embodiment)
14A and 14B show the positioning protrusion 65 of the component positioning structure 60 of the ninth embodiment. In the ninth embodiment, a part of the outer peripheral portions of the first positioning portion 70 and the second positioning portion 75 having different diameters are arranged so as to be continuous on a straight line, and the first protrusion that is continuous on the straight line at that portion. 73 and the second protrusion 78 are different from the embodiments. Thus, if the dimension from the first reference part 71 to the tip of the first protrusion 73 is larger than the dimension from the second reference part 76 to the tip of the second protrusion 78, the first protrusion 73 and the first protrusion 73 The tips of the two protrusions 78 may be matched.

(10th Embodiment)
FIG. 15 shows a positioning protrusion 65 of the component positioning structure 60 of the tenth embodiment. This tenth embodiment is different from the respective embodiments in that the positioning protrusion 65 is formed in an oval shape when viewed from the direction along the axis. Specifically, the first positioning portion 70 includes a flat first reference portion 71 located on the left side in FIG. 15 and a flat first facing portion 72 located on the right side in FIG. And in the center of this 1st opposing part 72, the 1st protrusion 73 which protrudes outward is formed. Similarly, the second positioning portion 75 includes a flat second reference portion 76 located on the left side in FIG. A second facing portion 77 is formed by cutting out the right side portion of the second reference portion 76, and a second protrusion 78 is formed at the center of the second facing portion 77.

(Eleventh embodiment)
16A and 16B show positioning protrusions 65A and 65C of the component positioning structure 60 of the eleventh embodiment. The eleventh embodiment is different from the respective embodiments in that the positioning protrusions 65A and 65C are formed in a substantially rectangular shape when viewed from the direction along the axis. The positioning protrusion 65A in FIG. 16A is disposed on the right side of the base member 20 shown in FIG. 4A, and is positioned by press-fitting into positioning holes 85A and 90A made of through holes. The positioning protrusion 65C of FIG. 16B is disposed at the center of the base member 20 shown in FIG. 4A, and is integrally provided so as to protrude from the outer peripheral wall 21 so that one side is along the outer peripheral wall 21. The positioning protrusions 65C are positioned by press-fitting into positioning holes 85C and 90C made of U-shaped through-groove holes.

  As shown in the tenth and eleventh embodiments, the positioning protrusion 65 is not limited to a cylindrical shape, but can be changed as desired. And even if it does in these ways, the effect | action and effect similar to 1st Embodiment can be acquired.

  As described above, the component positioning structure 60 of the present invention has a width from the first reference portion 71 of the first positioning portion 70 to the first facing portion 72 from the second reference portion 76 of the second positioning portion 75 to the second. The first protrusion 73 is provided to be larger than the width to the facing portion 77 and protrude beyond the first facing portion 72, and the second protrusion 78 is provided to protrude beyond the second facing portion 77. Thus, two or more parts can be positioned with high accuracy.

  In the above-described embodiment, the first positioning portion 85 is plastically deformed by press-fitting the first positioning holes 85A to 85C of the printed circuit board 30 into the first positioning portion 70. However, the first positioning hole 85A ˜85C may be plastically deformed. Similarly, the second positioning portion 78 is plastically deformed by press-fitting the second positioning holes 90A to 90C of the cover member 40 into the second positioning portion 75. However, the second positioning holes 90A to 90C are plastic. You may make it deform | transform. Moreover, although the protrusions 73 and 78 are provided so as to form a triangular shape in plan view, the shape can be changed as desired.

  Moreover, in the said embodiment, although the components positioning structure 60 of this invention was applied to the switch apparatus 10 for vehicles, this invention is applicable to any articles | goods assembling two or more components with respect to a reference | standard component. Yes, similar actions and effects can be obtained.

DESCRIPTION OF SYMBOLS 10 ... Vehicle switch apparatus 20 ... Base member (reference | standard component)
DESCRIPTION OF SYMBOLS 21 ... Outer peripheral wall 22 ... Blocking wall 23A-23C ... Cylindrical part 24 ... Connector insertion part 25 ... Boss 26 ... Screw 30 ... Printed circuit board (1st component)
31 ... Switch 32 ... Connector 33 ... LED
34 ... Through-groove 35 ... Notch 36 ... Screw hole 40 ... Cover member (second part)
DESCRIPTION OF SYMBOLS 41 ... Knob guide 42 ... Illumination hole 43 ... Through-hole 44 ... Notch part 45 ... Screw hole 50 ... Switch knob 51 ... Operation part 60 ... Component positioning structure 65,65A-65C ... Positioning protrusion 66 ... Base part 70 ... No. DESCRIPTION OF SYMBOLS 1 Positioning part 71 ... 1st reference | standard part 72 ... 1st opposing part 73 ... 1st protrusion 74 ... Inclination part 75 ... 2nd positioning part 76 ... 2nd reference part 77 ... 2nd opposing part 78 ... 2nd protrusion 79 ... Inclined part 80 ... Step part 81 ... Clearance 85A to 85C ... First positioning hole (first hole)
86 ... Linear edge 87 ... Arc edge 88 ... Linear edge 89 ... End edge 90A to 90C ... Second positioning hole (second hole)
91 ... Linear edge 92 ... Arc edge 93 ... 1st wall part 94 ... 2nd wall part

Claims (10)

A reference component having a positioning protrusion including a first positioning portion on a proximal end side having a first width and a second positioning portion on a distal end side having a second width narrower than the first width;
A first component provided with a first hole having a dimension corresponding to the first width;
A second part provided with a second hole having a dimension corresponding to the second width,
The first hole is press-fitted into the first positioning part to position the first part into the positioning protrusion, and the second hole is press-fitted into the second positioning part to place the second part into the positioning part. A part positioning structure that positions the projecting part. The first positioning portion includes a first reference portion that is a part of an outer peripheral portion, and a first facing portion that faces the first reference portion, and the first facing portion extends in an axial direction. 1 protrusion is provided,
The second positioning portion includes a second reference portion that is a part of an outer peripheral portion, and a second facing portion that faces the second reference portion, and the second facing portion extends in an axial direction. 2 protrusions are provided,
The first width from the first reference portion to the first opposing portion is formed to be greater than the second width from the second reference portion to the second opposing portion;
The first reference portion abuts against a part of the first hole, and the first protrusion is pressed against another part of the first hole so that the first component is positioned at the first positioning portion. And
The second reference portion abuts against a part of the second hole, and the second protrusion is pressed against another part of the second hole so that the second component is positioned at the second positioning portion. The component positioning structure according to claim 1, wherein:   The first positioning portion or the first hole is plastically deformed by press-fitting the first positioning portion into the first hole, and the second positioning portion is press-fitted into the second hole. 3. The component positioning structure according to claim 2, wherein a protrusion or an edge of the second hole is plastically deformed to position the first component and the second component with respect to the reference component.   The dimension from the 1st standard part of the 1st positioning part to the tip of the 1st projection is larger than the dimension from the 2nd standard part of the 2nd positioning part to the tip of the 2nd projection. Item positioning structure of Claim 2 or Claim 3.   The dimension of the first hole in the first part in the direction corresponding to the width direction of the first positioning part is larger than the dimension of the second positioning part from the second reference part to the tip of the second protrusion. 5. The component positioning structure according to claim 2, wherein the component positioning structure is smaller than a dimension of the first positioning portion from the first reference portion to a tip of the first protrusion. On the second facing portion side of the second positioning portion, a step portion serving as a boundary between the first positioning portion and the second positioning portion is provided,
The component positioning according to any one of claims 2 to 5, further comprising positioning means for positioning the second component such that a gap is formed between the stepped portion and the second component. Construction.   The component positioning structure according to claim 6, wherein the step portion is inclined outward from a distal end side to a proximal end side of the positioning protrusion.   In the first positioning portion and the second positioning portion, the first protrusion and the second protrusion protrude in the same direction, and the first reference portion and the second reference portion are arranged on the same straight line. The component positioning structure according to any one of claims 2 to 7, wherein the component positioning structure is provided.   The component according to claim 8, wherein the reference component is provided with two or more positioning protrusions, and the first reference portion and the second reference portion of each of the positioning protrusions are arranged on the same plane. Positioning structure.   The second positioning portion has a D-shaped cross section with the second facing portion as a flat surface by cutting out the outer peripheral portion on the distal end side of the positioning protrusion, and the second facing portion is viewed from the front. The component positioning structure according to claim 8 or 9, wherein the first protrusion and the second protrusion are arranged on the same straight line.

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