JP5887104B2 - Switch device - Google Patents

Description

  The present invention relates to a switch device provided on a door handle or the like of a vehicle.

  For example, a door handle is attached to the outer panel of the vehicle door, and the occupant operates the door handle to operate the door latch, so that the occupant can open the door.

  By the way, in order to prevent an unauthorized opening operation of the door by a third party, the door latch is configured to lock its operation, but the door handle is provided with a switch device for locking / unlocking the door latch. Yes.

  Thus, the switch device is a device that is attached to the attachment hole of the door handle, the switch case disposed inside the door handle, the switch mechanism housed in the switch case, and the switch case. It is comprised including the arrange | positioned operation member (for example, refer patent document 1).

  In addition, in Patent Document 2, regarding the mounting of the waterproof cover to the switch case, a recess is formed in the side portion of the switch case, and an elastically deformable press-fitting rib that is pressed against the periphery of the opening of the door panel when the waterproof cover is attached. There has been proposed a configuration in which the waterproof rib is formed and the press-fitting rib is accommodated in the recess of the switch case. According to this, since the height of the press-fitting rib can be increased, it is possible to increase the deformation capacity of the press-fitting rib, thereby suppressing the backlash of the switch device.

JP 2009-104804 A JP 2008-047347 A

  Some switch devices attach a cover (operation knob) made of an elastic body such as rubber to a separate switch case. When the press-fitting method is adopted as a cover mounting method in such a switch device, the holding force of the press-fit part is limited due to permanent deformation of the press-fitted part of the cover and deterioration of assembling ability. For this reason, there is a possibility that the cover may fall off the switch case due to an increase in internal pressure due to a temperature change, lateral pressing, or a tensile load.

  In order to solve the problem of the cover falling off, a configuration in which the outer periphery of the cover is sandwiched between the switch case and the vehicle side parts may be adopted. There is a problem that such a configuration cannot always be adopted due to the limitation of requirements.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a switch device that can prevent the cover from falling off from the switch case.

In order to achieve the above object, the invention according to claim 1
A switch case having an opening;
A switch mechanism housed in the switch case;
A cover attached to the switch case so as to cover the opening of the switch case;
In a switch device comprising
Forming a fitting hole in the side of the switch case,
An arm part that can be bent around the base end part is integrally extended to the cover, and an insertion protrusion that can be inserted into the insertion hole of the switch case is provided at the distal end of the arm part .
The cover is bent and engaged with the switch case from the state in which the arm of the cover is bent around the base end portion and the insertion protrusion of the tip portion is inserted into the insertion hole of the switch case and the cover is attached to the switch case. Provide an engaged member,
The engaging member is formed with a pressing portion for pressing the bent arm portion of the cover from the outside .

According to a second aspect of the present invention, in the first aspect of the present invention, an engaging claw is provided in the vicinity of the insertion hole of the switch case,
An engaging piece having an engaging hole with which the engaging claw of the switch case engages is formed on the engaged member, and the pressing portion is configured by the engaging piece.

  According to the first aspect of the present invention, when the cover is attached to the switch case, the arm portion is bent around the base end portion, and the insertion protrusion of the distal end portion is inserted into the insertion hole of the switch case. Since the switch case is sandwiched from both sides (a U shape), the cover can be reliably prevented from falling off from the switch case.

Then, the cover is put on the switch case, the arm portion of the cover is bent around the base end portion, and the insertion protrusion of the distal end portion is inserted into the insertion hole of the switch case, and the cover is attached to the switch case, When the engaged member is engaged with the switch case and assembled, the bent arm part of the cover is pressed from the outside by the pressing part of the engaged member, and the switch case of the insertion protrusion protruding from the arm part is provided. Since the fitting into the fitting hole is maintained, it is possible to more reliably prevent the cover from falling off from the switch case.

According to the second aspect of the present invention, when the engaged member is assembled to the switch case by the engagement method, the engaging piece of the engaged member abuts on the engaging claw of the switch case and the tip thereof opens. Even if the arm part of the cover is slightly detached from the switch case and floats, the engagement piece does not interfere with the arm part, and the engaged member can be easily attached to the switch case with good workability. it can. When the engaging claw of the switch case engages with the engaging hole formed in the engaging piece of the cover, the engaging piece constituting the pressing portion is restored to its original state by elasticity and the arm portion of the cover is moved outward. Therefore, a separate operation for pressing the arm portion with the pressing portion is unnecessary, and the arm portion of the cover can be pressed simultaneously with the attachment of the engaged member to the switch case.

It is a top view of the switch device concerning the present invention. It is a side view of the switch device concerning the present invention. It is the perspective view which looked at the switch device concerning the present invention from the slanting upper part. It is the perspective view which looked at the switch apparatus concerning the present invention from the slanting lower part. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is a disassembled perspective view of the switch apparatus which concerns on this invention. (A) is the perspective view of the operation knob of the switch apparatus which concerns on this invention, (b) is the perspective view which looked at the operation knob from the back side. (A) is a perspective view which shows the state which press-fitted the operation knob of the switch apparatus based on this invention to switch case, (b) is the C section enlarged detail drawing of (a). (A) is a perspective view which shows the state which mounted | wore the switch case with the operation knob of the switch apparatus based on this invention, (b) is the D section enlarged detail drawing of (a), (c) is EE of (b). It is line sectional drawing. (A) is a perspective view which shows the state in the middle of the assembly | attachment to the switch case of the harness cover in the switch apparatus concerning this invention, (b) is F section enlarged detail drawing of (a). (A) is a perspective view which shows the state which assembled | attached the harness cover of the switch apparatus based on this invention to the switch case, (b) is the G section enlarged detail figure of (a), (c) is HH of (b). It is line sectional drawing.

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

  FIG. 1 is a plan view of the switch device according to the present invention, FIG. 2 is a side view of the switch device, FIG. 3 is a perspective view of the switch device viewed from obliquely above, and FIG. 5 is a cross-sectional view taken along line AA in FIG. 3, FIG. 6 is a cross-sectional view taken along line BB in FIG. 3, and FIG. 7 is an exploded perspective view of the switch device.

  As shown in FIGS. 1 and 2, the switch device 1 according to the present embodiment is attached to a substantially rectangular attachment hole 2 a formed at one end in the longitudinal direction of the door handle 2.

  Thus, the switch device 1 includes a switch case 3 integrally formed of resin as shown in FIGS. 3 to 7, and a square cylindrical portion 3 </ b> A (FIG. 5) is formed at the center of the switch case 3. To FIG. 7) are integrally formed, and a horizontal flange portion 3B is formed around the square cylindrical portion 3A. Then, a substantially rectangular opening 3a communicating with the mounting hole 2a of the door handle 2 is formed at one end (the upper end in FIGS. 5 to 7) of the rectangular tubular portion 3A, and the other end (in FIGS. 5 and 6). A substantially rectangular outlet 3b is opened at the lower end.

  Further, as shown in FIGS. 6 and 7, a stepped shoulder 3c is formed at an intermediate height position of the rectangular tubular portion 3A of the switch case 3, and the outer surfaces of the flange portion 3B are opposed to each other. In two places, rectangular engagement holes 3d (only one is shown in FIG. 7) communicating with the inside (outlet port 3b) of the rectangular tubular portion 3A are formed. Then, on both upper sides of the engagement hole 3d of the flange portion 3B of the switch case 3, as shown in FIGS. 3, 4 and 7, an engagement claw 3e (only one is shown in FIGS. 3, 4 and 7). Are formed respectively.

  Further, as shown in FIGS. 5 to 7, a mounting groove 3 f is formed in the flange portion 3 </ b> B of the switch case 3 along the outer periphery of the square tubular portion 3 </ b> A, and a bolt (not shown) is formed at one end of the flange portion 3 </ b> B. A circular bolt insertion hole 3g (see FIGS. 3, 5 and 7) is formed, and a bifurcated fitting projection 3h (see FIGS. 3 to 5 and 7) is formed at the other end. Is formed. As shown in FIG. 5, a prismatic holding portion 3C is integrally extended from a part of the rectangular cylindrical portion 3A of the switch case 3 toward the lower side of FIG. Is formed with a fitting groove 3i.

  As shown in FIGS. 5 and 6, a terminal base 4 integrally formed in a gate shape with a resin is disposed inside the rectangular tubular portion 3 </ b> A of the switch case 3. As shown in FIGS. 6 and 7, engagement claws 4a (only one is shown in FIG. 7) are formed at two opposite positions of the terminal base 4, and the terminal base 4 has two engagements. As shown in FIG. 6, the claw 4 a is fixed to the switch case 3 by engaging with the two engagement holes 3 d formed in the switch case 3.

  As shown in FIG. 7, two metal terminals 5 are vertically inserted into the terminal base 4, and upper ends of the terminals 5 protruding above the terminal base 4 are bent at a right angle. A fixed contact 5 a is configured by being overlaid on the upper surface of the terminal base 4.

  Further, as shown in FIGS. 5 and 6, a slider 7, which is an operation member, can be moved up and down via a rubber contact 6 above the terminal base 4 inside the rectangular tubular portion 3 </ b> A of the switch case 3. A part of the switch case 3 and the slider 7 are covered with an operation knob 8 as a cover.

  Here, the operation knob 8 is integrally formed in a bag shape by an elastic body such as rubber, and as shown in FIGS. 5 to 7, a rectangular button-like operation is provided at the center of the rectangular base portion 8A. The part 8B is erected integrally. And the press-fitting rib 8a (refer FIG.5 and FIG.6) is formed in the inner peripheral surface of the opening edge part (lower end part of FIGS. 5-7) of the base part 8A of this operation knob 8 over the perimeter. Yes. 5 and 6, the operation knob 8 is fitted into the mounting groove 3f formed in the switch case 3 by fitting the base portion 8A into the inner and outer peripheries of the opening end portion of the base portion 8A of the operation knob 8. The press-fitting rib 8 a formed on the surface is pressed into the mounting groove 3 f of the switch case 3, and the operation knob 8 is fixed to the switch case 3.

  The rubber contact 6 is integrally formed in a bag shape by an elastic body such as rubber, and as shown in FIGS. 5 to 7, connects the rectangular plate-shaped base portion 6 </ b> A to the columnar actuator 6 </ b> B and both. The deformable leg portion 6C is configured, and a movable contact (not shown) is provided on the lower surface of the actuator 6B (the surface facing the fixed contact 5a). Here, a movable contact (not shown) provided on the rubber contact 6 side and the fixed contact 5a provided on the terminal base 4 side constitute a switch mechanism.

  The slider 7 is formed in a long cylindrical shape along the inner peripheral shape of the rectangular tubular portion 3A of the switch case 3, and moves up and down when the operator presses the operation portion 8B of the operation knob 8. Specifically, the slider 7 presses the rubber contact 6 and the first position (see FIGS. 2 to 6) protruding outside from the mounting hole 2 a of the door handle 2 through the opening 3 a of the switch case 3. A movable contact (not shown) provided on the terminal base 4 is brought into contact with a fixed contact 5a provided on the terminal base 4 so as to be selectively movable to a second position for operating the switch mechanism.

  By the way, as shown in FIG.5 and FIG.6, one end of the harness 9 which is a conducting wire is connected to the two terminals 5 inserted and fixed to the terminal base 4 by spot welding or soldering, respectively. The harness 9 is bound by a binding band 10 and covered with a protective tube 9A. The two harnesses 9 covered with the protective tube 9A are led out to the outside from the lead-out port 3b of the switch case 3, and the ends thereof are used as a controller for controlling the actuator operation of a door latch (not shown) provided in the vehicle. It is connected.

  Here, as shown in FIG. 7, the binding band 10 includes a rectangular block-shaped head portion 10A and a band portion 10B extending from the head portion 10A and bent into a rectangular frame shape. The free end passes through the head portion 10A and is fixed to the head portion 10A.

  Thus, as shown in FIGS. 5 and 6, the two harnesses 9 are bound by passing through a rectangular frame formed by the band portion 10 </ b> B of the binding band 10, and the two harnesses 9 are combined. The binding band 10 is covered and protected by a harness cover 11 that is an engaged member attached to the switch case 3. Here, as shown in FIG. 5, the binding band 10 is fitted into the switch case 3 by fitting the band portion 10 </ b> B into a fitting groove 3 i (see FIG. 5) formed in the holding portion 3 </ b> C of the switch case 3. The two harnesses 9 are attached to the switch case 3 via the binding band 10.

  The harness cover 11 is integrally formed in a substantially U shape with resin as shown in FIG. 7, and bifurcated engagement pieces 11A are formed at both left and right ends thereof. Each engagement piece 11A is formed with a rectangular engagement hole 11a, and the harness cover 11 has an engagement hole 11a formed in each engagement piece 11A as shown in FIGS. Further, a total of four engaging claws 3e formed on the switch case 3 are engaged with each other to be attached to the switch case 3.

  Thus, the two harnesses 9 covered with the protective tube 9A pass through the harness cover 11 and extend to the outside of the switching device 1 as shown in FIGS. Connected to the door latch. Therefore, the fixed contact 5a constituting a part of the switch mechanism arranged in the switch case 3 is connected to a controller for controlling the operation of the actuator of the door latch (not shown) via the harness 9.

  The switch device 1 configured as described above has a bifurcated fitting projection 3 h (see FIGS. 3 to 5) formed at one end of the flange portion 3 </ b> B of the switch case 3. As shown in FIGS. 1 and 2 by tightening a bolt (not shown) that fits into the fitting recess shown in the figure and is inserted into a bolt insertion hole 3g (see FIGS. 5 and 7) formed at the other end of the flange 3B. Although it is attached to the attachment hole 2a of the door handle 2, when the slider 7 is in the first position shown in FIGS. 5 and 6, the operation portion 8B of the operation knob 8 is provided on the door handle 2 as shown in FIGS. It protrudes from the design surface. Further, as shown in FIG. 2, a part of the switch case 3 and the harness cover 11 protrude to the back side of the door handle 2 and are accommodated in a door (not shown). Here, in a state where the switch device 1 is attached to the door handle 2, as shown in FIG. 6, the shoulder portion 3 c formed on the switch case 3 moves the operation knob 8, which is a cover, between the door handle 2. It is pinched and fixed.

  When the operation portion 8B of the operation knob 8 is in the first position protruding from the design surface of the door handle 2 as described above, no force is applied to the rubber contact 6 as shown in FIGS. 6 is separated upward from the terminal base 4 as shown in the figure, the movable contact (not shown) provided on the lower surface of the actuator 6B contacts the fixed contact 5a of the terminal base 4. In addition, since the switch mechanism is in an OFF state and an actuator control signal is not output from a controller (not shown), the door latch (not shown) maintains a non-conductive state, for example, the locked state is maintained and the occupant can open the door. Can not.

  When the operator presses the operating portion 8B of the operating knob 8 in the operating direction (downward in FIGS. 5 and 6) from the above state, the slider 7 is moved to the second position by the pressing force. Then, since the actuator 6B of the rubber contact 6 is pushed by the slider 7, the leg portion 6C of the rubber contact 6 is bent and deformed, and the actuator 6B moves downward in FIGS. Adheres to the top surface. Then, a movable contact (not shown) provided on the actuator 6B of the rubber contact 6 comes into contact with the fixed contact 5a of the terminal base 4, the switch mechanism is turned on, an actuator control signal is output from the controller, and the door latch The actuator becomes conductive, and the door latch can be switched from the locked state to the unlocked state, so that the door can be opened. When the operator removes his / her finger from the operation portion 8B of the operation knob 8, the slider 7 moves from the second position to the first position shown in FIGS. 5 and 6, and accordingly, the operation portion 8B of the knob 8 is operated. Project outside from the design surface of the door handle 2 as shown in FIGS. Hereinafter, similarly, every time the operator presses the operation portion 8B of the operation knob 8, the lock and unlock of the door latch are alternately switched.

  Next, the gist of the present invention will be described below with reference to FIGS.

  8A is a perspective view of the operation knob of the switch device according to the present invention, FIG. 8B is a perspective view of the operation knob viewed from the back side, and FIG. 9A is a switch of the operation knob of the switch device. 9B is an enlarged detailed view of a portion C in FIG. 9A, and FIG. 10A is a perspective view showing a state in which the operation knob of the switch device is attached to the switch case. FIG. 10B is an enlarged detail view of a portion D of FIG. 10A, FIG. 10C is a cross-sectional view taken along line EE of FIG. 10B, and FIG. 11A is a harness in the switch device. FIG. 11 (b) is an enlarged detail view of the F part in FIG. 11 (a), and FIG. 12 (a) shows the harness cover of the switch device as a switch case. The perspective view which shows the assembled state, FIG.12 (b) is the G section enlarged detail drawing of Fig.12 (a), . 12 (c) is a line H-H cross-sectional view of FIG. 12 (b).

  As shown in FIG. 8, the arm portions 8C having a small thickness are horizontally directed outward at two opposite diagonal side surfaces of the base portion 8A of the operation knob 8. Are integrally formed. These arm portions 8C can be bent with the base end portion as the center, and a cylindrical insertion protrusion 8b is provided at the front end portion so as to project at a right angle to the surface.

  On the other hand, as shown in FIG. 7, two opposite sides of the flange portion 3 </ b> B of the switch case 3, corresponding to the arm portion 8 </ b> C formed on the operation knob 8 (only one is shown in FIG. 7). In the figure, circular holes 3j are formed, and one of the engaging claws 3e is formed in the vicinity of the hole 3j.

  Thus, the operation knob 8 is fixed to the switch case 3 by press-fitting the press-fitting rib 8a formed on the base portion 8A as described above into the mounting groove 3f formed on the switch case 3 from above ( In the state in which the operation knob 8 is fixed to the switch case 3 by press-fitting as described above, the two arm portions 8C (see FIG. 9) formed on the operation knob 8 as shown in FIG. (Only one is shown) extends horizontally outward.

  From the above state, as shown in FIG. 10, the two arm portions 8C (only one is shown in FIG. 10) of the operation knob 8 are bent at right angles downward (in the direction of the arrow in FIG. 10C) with the base end as the center. As shown in FIG. 10 (c), each is inserted into each insertion hole 3 j formed in the switch case 3. Then, the operation knob 8 has a shape (a U-shape) that sandwiches the switch case 3 from both sides thereof, so that the operation knob 8 can be prevented from coming off upward.

When the operation knob 8 is attached to the switch case 3 as described above, the harness cover 11 is fitted and attached to the switch case 3 from below as shown in FIG. When the four engaging pieces 11A come into contact with the four engaging claws 3e formed on the switch case 3, as shown in FIG. 11 (b), the distal ends of the engaging pieces 11A are outside (in the direction of the arrows). Open to. For this reason, even if the arm portion 8C of the operation knob 8 is slightly detached from the switch case 3 and floats, the engaging piece 11A does not interfere with the arm portion 8C and depends on the mounting direction of the harness cover 11. Therefore, the harness cover 11 can be easily attached to the switch case 3 with good workability.

  And when each engaging claw 3e of switch case 3 engages with each engaging hole 11a formed in each engaging piece 11A of harness cover 11, each engaging piece 11A will restore to an original state by elasticity, Two of them press the arm 8C of the operation knob 8 from the outside as shown in FIG. 12 (only one is shown in FIG. 12). For this reason, the two engaging pieces 11A of the harness cover 11 are configured as pressing portions that press the arm portion 3C of the switch case 3 from the outside. As a result, a separate operation for pressing the bent arm portion 3C of the switch case 3 by the pressing portion becomes unnecessary, and the arm portion 8C of the operation knob 8 can be pressed simultaneously with the attachment of the harness cover 11 to the switch case 3. The assembling workability of the switch device 1 is improved.

  As described above, according to the switch device 1 of the present invention, when the operating knob 8 is mounted on the switch case 3, the arm 8C of the operating knob 8 is bent at a right angle with the base end as the center, and the distal end of the arm 8C is bent. If the projecting insertion protrusion 8b is inserted into the insertion hole 3j of the switch case 3, the operation knob 8 has a shape (a U-shape) that sandwiches the switch case 3 from both sides thereof. Falling off from the switch case 3 is reliably prevented.

  Then, the operation knob 8 is put on the switch case 3, the arm portion 8C of the operation knob 8 is bent around the base end portion, and the insertion protrusion 8b of the distal end portion is inserted into the insertion hole 3j of the switch case 3. When the harness cover 11 is engaged with the switch case 3 and assembled after the operation knob 8 is mounted on the switch case 3, the bent arm portion 8C of the operation knob 8 becomes an engagement piece (pressing portion) 11A of the harness cover 11. Thus, the fitting protrusion 8b protruding from the arm portion 8C is maintained in the insertion hole 3j of the switch case 3, so that the operation knob 8 is more reliably prevented from falling off the switch case 3. Can be removed.

  In the above, the embodiment in which the present invention is applied to the switch device provided on the door handle of the vehicle has been described. However, the present invention can be similarly applied to any other switch device having the same form. Of course.

1 Switch device 2 Door handle (attached member)
2a Door handle mounting hole 3 Switch case 3A Switch case square tube part 3B Switch case flange part 3C Switch case holding part 3D Switch case protrusion 3a Switch case opening 3b Switch case outlet 3c Switch case 3d Switch case engagement hole 3e Switch case engagement claw 3f Switch case mounting groove 3g Switch case bolt insertion hole 3h Switch case fitting protrusion 3i Switch case fitting groove 3j Switch case fitting Hole 4 Terminal base 4a Terminal base engaging claw 5 Terminal 5a Terminal fixed contact 6 Rubber contact 6A Rubber contact base 6B Rubber contact actuator 6C Rubber contact leg 7 Slider (operation member)
8 Operation knob (cover)
8A Operation knob base part 8B Operation knob operation part 8C Operation knob arm part 8a Operation knob press-fitting rib 8b Operation knob insertion protrusion 9 Harness 9A Protection tube 10 Binding band 10A Binding band head part 10B Binding band band part 11 Harness cover (engaged member)
11A Harness cover engagement piece (pressing part)
11a Harness cover engagement hole

Claims (2)

A switch case having an opening;
A switch mechanism housed in the switch case;
A cover attached to the switch case so as to cover the opening of the switch case;
In a switch device comprising
Forming a fitting hole in the side of the switch case,
An arm part that can be bent around the base end part is integrally extended to the cover, and an insertion protrusion that can be inserted into the insertion hole of the switch case is provided at the distal end of the arm part .
The cover is bent and engaged with the switch case from the state in which the arm of the cover is bent around the base end portion and the insertion protrusion of the tip portion is inserted into the insertion hole of the switch case and the cover is attached to the switch case. Provide an engaged member,
A switch device characterized in that a pressing portion for pressing the bent arm portion of the cover from the outside is formed on the engaged member . An engaging claw is provided in the vicinity of the insertion hole of the switch case,
Wherein the engaged member, said engagement pawl of the switch case form a engaging piece having an engaging hole to be engaged, according to claim 1, characterized in that constitutes the pressing portion by the engagement piece Switch device.

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