JP5254862B2 - Moderation mechanism switch and combination switch - Google Patents

Description

  The present invention relates to a switch with a moderation mechanism, and a combination switch, which includes a relatively moving operation unit and a base, and includes a plurality of switching positions.

  2. Description of the Related Art Conventionally, a combination switch is used in which an operation lever that performs a swinging motion is extended from the side of a steering column of an automobile, and a rotary switch operation portion (rotation knob) is disposed at the tip of the operation lever. For example, one use of this combination switch is to turn on and off the direction indicator by swinging the operating lever, or to instruct the headlamp's high beam, etc., and turn the rotary switch at the tip to turn the headlamp Many are used to give instructions on dimmers.

  In addition, for example, the operation speed of the front wiper is instructed by swinging the operation lever, and the operation of the rear wiper or the control of the spraying of window tosher liquid is instructed by the rotation of the rotary switch arranged at the tip of the operation lever Things are also frequently used.

  These combination switches for automobiles are provided with a moderation mechanism that gives a moderation feeling (operation feeling) when the operation unit is rotated to stop each switching position of the rotary switch.

  In a moderation mechanism of this type of rotary switch, generally, a moderation providing member having a moderation giving recess corresponding to a plurality of switching positions by rotating with the operation unit is arranged on the operation lever (base) side, and the moderation giving A moderation imparting convex portion configured to be detachable with respect to the moderation imparting concave portion of the member, and an urging means for urging the moderation imparting convex portion toward the moderation imparting concave portion. Then, in a state where the operation portion is stopped at the switching position, the moderation imparting concave portion of the moderation provision member formed on the operation portion side and the moderation provision convex portion on the operation lever side are engaged with each other. The switch is positioned at the switching position with a predetermined holding force.

  When the driver gives a torque exceeding the holding force and performs the turning operation of the operation portion, the moderation imparting convex portion biased toward the moderation imparting concave portion moves in a direction away from the moderation imparting concave portion. Disengagement. When the moderation imparting convex portion reaches the next moderation imparting concave portion, the moderation imparting convex portion urged by the urging means is reinserted into the moderation imparting concave portion, and positioned with a predetermined holding force at the next switching position. Is done.

  For example, in Patent Document 1 (Japanese Patent Laid-Open No. 2000-195387), one moderation imparting member (moderation plate) used for a rotary switch arranged at the tip of an operation lever of a combination switch is provided with a rotation range and the number of switching contacts. An invention is disclosed that can be shared for a plurality of types of operation units (rotating knobs) having different numbers.

  In the rotary switch described in Patent Document 1, a moderation application member in which moderation application recesses (moderation valleys) corresponding to a plurality of switching positions are formed is inserted in the operation unit. This moderation member is formed with a combination of two types of moderation recesses so that the moderation member can be shared by two types of rotary switches having different rotation ranges and different numbers of switching contacts. And it is supposed that the rotation range of the operation part and the number of switching contacts can be changed while sharing the same moderation providing member by inserting into different operation parts according to the rotation range and the number of switching contacts.

  Further, in Patent Document 2 (Japanese Patent Laid-Open No. 2003-162945), a vehicle in which two types of rotary switch operation units (first and second rotary knobs) are arranged at two locations, the center and the tip of the operation lever. An invention relating to a combination switch is disclosed. The vehicle combination switch is intended to prevent a problem that when only one of the two types of operation units is operated, the other operation unit is linked and rotated.

  The moderation mechanism of the operation part at the central part of the operation lever described in Patent Document 2 has a moderation imparting convex member (moderation body) and an urging means (moderation spring) inside the operation part, and the moderation provision A moderation imparting member (fixing knob) having a plurality of moderation imparting recesses (moderation groove forming portions) corresponding to the switching position is fixed to a member on the operation lever side facing the convex member.

  On the other hand, the moderation mechanism of the operation unit arranged at the tip of the operation lever has a rotation shaft (lever shaft) that transmits the rotation of the operation unit at the tip inserted through the center of the operation lever. A moderation imparting recess (moderation groove forming portion) that defines a switching position is formed at the tip of the shaft extending into the steering column. A moderation imparting convex member configured such that a moderation imparting convex portion (protrusion portion of the moderation body) is detachable with respect to the moderation imparting concave portion on the moderator support portion holding the swingable operation lever, Biasing means (moderation spring) for biasing the imparting convex portion toward the moderation imparting concave portion is arranged.

  In the vehicle combination switch described in Patent Document 2, the central operation unit applies a holding force to the operation lever. On the other hand, the operation portion at the tip generates a holding force with the moderation body support portion in the steering column. For this reason, even when the central operation unit is rotated against the holding force at the switching position, no force is applied to the distal operation unit, so the distal operation unit is connected. It is possible to prevent the problem of turning and turning. Similarly, even when the operating portion at the tip is rotated against the holding force at the switching position, no force is applied to the central operating portion, so the central operating portion is It is possible to prevent the problem of being linked and rotated.

JP 2000-195387 A JP 2003-162945 A

  The moderation imparting members described in Patent Literature 1 and Patent Literature 2 are provided with moderation imparting recesses corresponding to a plurality of switching positions. In combination switches used for passenger cars, trucks, buses, etc. traveling on public roads, a light force is generally sufficient as the holding force at the switching position. Therefore, a resin molded product such as polyacetal can be used as a material for the moderation member in which the moderation recess is formed. Moreover, a metal sphere can be used as a material of the moderation provision convex member arrange | positioned so that attachment / detachment with respect to this moderation provision recessed part is possible.

  On the other hand, for example, in a forward / reverse switching operation lever used in a construction machine such as a wheel loader, the forward / reverse switching position is not switched by a vibration or an impact generated when the vehicle is running or working. Therefore, the holding force at each switching position is set strongly.

  When the operating lever is operated against this strong holding force, the operating part of the rotary switch arranged at the tip of the operating lever rotates in conjunction with this operating force, and the switch position of the rotary switch is changed to the intended position. It causes a problem that it switches even though it is not.

  Therefore, in combination switches used for construction machines, etc., the holding force for forward / reverse switching is set strongly, and the holding force at each switching position of the rotary operation unit arranged at the tip of the operation lever is also strong. It is necessary to set. Further, the frequency of use of the speed switching operation during the work of the construction machine is much higher than that of a vehicle traveling on a public road.

  When the structure of a combination switch for a vehicle that generally travels on public roads is used as it is for a speed change switch of a construction machine, and the holding force at each change position is set strongly, the moderation application recess of the moderation application member made of resin is used. It spreads due to wear and deformation. As a result, the accuracy of each switching position deteriorates and the switching position becomes ambiguous, or the holding power is reduced, resulting in a problem of moderation at the time of the turning operation.

  Therefore, by using a steel plate that is harder and stronger than resin as a material constituting the moderation imparting member, the wear and deformation of the moderation imparting member is reduced, the holding force is prevented from being lowered, and the moderation is moderated over a long period of time. It becomes possible to maintain a feeling.

  Note that the operation part of the rotary switch that the driver directly touches with a finger is required to have a certain outer diameter and a shape that is difficult to slip during the rotation operation in order to transmit torque during the rotation. In order to satisfy these requirements, it is preferable to use a synthetic resin that is lightweight, excellent in operational feeling, and easy to mold as a material constituting the operation part of the rotary switch.

  However, when the torque at the time of the switching operation is transmitted from the synthetic resin operation unit to the thin moderation member, the locally concentrated force in the torque transmission unit on the operation unit functioning as a detent of the moderation member Will be added. As a result, the torque transmission part made of synthetic resin is deformed, and problems such as wear occur while the contact is repeated. When wear occurs in the torque transmission unit, the positional relationship between the operation unit and the moderation member is shifted, and the switching position becomes ambiguous. In addition, it is accompanied by a feeling of operation with a modest feeling as if a large play exists in the operation unit.

  The present invention has been made in view of the above problems, and an object thereof is to provide a switch with a moderation mechanism and a combination switch having a strong holding force at the switching position, accuracy of the switching position, and durability. .

The switch with a moderation mechanism of the present invention is a switch with a moderation mechanism having a plurality of switching positions, which is composed of an operation unit and a base that move relatively, and is arranged at one of the operation unit and the base. A moderation imparting member made of a metal plate member having a moderation imparting recess for determining a switching position and having a pressure receiving surface substantially orthogonal to the moving direction of the operation portion, and a contact for transmitting an operation force to the pressure receiving surface A soft holding member that has a surface and holds the moderation providing member, and is configured to be detachable with respect to the moderation giving recess arranged in the other part of the base or the operation unit facing the moderation giving member A side wall provided with a moderation imparting convex member having a moderation imparting convex portion, and a biasing means for biasing the moderation imparting convex portion toward the moderation imparting concave portion, and an end portion of the moderation giving member bent at a right angle Before It is characterized by the formation as a pressure receiving surface.

  In addition, the switch with moderation mechanism is a rotary switch that can be switched to a plurality of switching positions by rotating the operation unit, and the holding member and the moderation providing member are arranged at a site on the operation unit side. Features.

  The combination switch according to the present invention is characterized in that the moderation mechanism-equipped switch is provided at a distal end portion of an operation lever that performs a swinging motion.

  In the switch with a moderation mechanism according to the present invention, a moderation imparting recess that determines the switch switching position when the operation unit is moved is formed in the hard moderation provision member, and the moderation provision member has a moving direction of the operation unit. A pressure receiving surface composed of substantially orthogonal surfaces was formed. Further, a contact surface is formed on the soft holding member that holds the moderation member, and the operating force is transmitted to the pressure receiving surface via the contact surface.

  By increasing the contact area between the pressure receiving surface and the contact surface in this way, it is possible to reduce the surface pressure applied to the contact surface formed on the soft holding member, thereby reducing deformation and wear of the contact surface. be able to. As a result, even when the holding force at the switching position is set strongly, it is possible to reduce the problem that the positional relationship between the operation unit and the moderation imparting member is shifted, and to stabilize the switching position over a long period of time. The durability of the switch with a moderation mechanism can be improved.

  According to another invention, the moderation member of the switch with moderation mechanism is made of a metal plate, and the pressure receiving surface is formed on the side wall where the end of the moderation member is bent at a right angle. A lightweight moderation imparting member can be configured with a simple configuration. By using a metal plate for the moderation member, the price of the switch with moderation mechanism having a strong holding force can be reduced.

  According to another invention, the moderation mechanism-equipped switch is applied to a rotary switch, and the holding member and the moderation providing member are arranged on a portion on the rotary operation unit side. By disposing a moderation imparting member formed of a metal plate on the rotary operation unit side, an increase in the moment of inertia of the rotary switch having a strong holding force can be suppressed.

  In the combination switch of the present invention, the switch with the moderation mechanism is arranged at the tip of the operation lever that performs the swinging motion. By using this mechanism, in a combination switch in which the holding force at the switching position of the operating lever is set strongly, even if the operating lever is swung against the strong holding force, the swinging operation can be performed. Accordingly, it is possible to reduce the problem that the rotary switch rotates.

FIG. 1 is an external plan view of a combination switch to which a switch with a moderation mechanism according to the present invention is applied. FIG. 2 is a side sectional view of a combination switch to which the switch with moderation mechanism according to the present invention is applied. FIG. 3 is a diagram for explaining an embodiment in which the moderation member is formed of a metal plate and the pressure receiving surface is formed on the side wall where the end of the moderation member is bent at a right angle. FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. 2 and is a diagram of a single operation unit excluding the base. FIG. 5 is a cross-sectional view taken along line VV shown in FIG. FIG. 6 is a diagram for explaining a wear state of the contact wall that occurs when a pressure receiving surface is not formed on the moderation imparting member. FIG. 7 is a view showing another embodiment of the pressure receiving surface formed on the moderation member.

  A preferred embodiment of the present invention will be specifically described with reference to the accompanying drawings.

  FIG. 1 is an external plan view of a combination switch 10 to which a switch with a moderation mechanism according to the present invention is applied, and FIG. 2 is a side sectional view of the combination switch 10.

  A combination switch 10 (one form of a switch with a moderation mechanism) shown in FIGS. 1 and 2 is used to electrically switch forward / reverse of a vehicle in a construction machine such as a wheel loader and to switch a speed range in four stages. It is a switch. The combination switch 10 extends from the left side of the steering column 12 of the wheel loader, for example, and instructs the forward movement by swinging the operation lever 48 to the forward switching position (position F shown in FIG. 1). Is moved to the switching position (R position shown in FIG. 1) to instruct reverse travel. When the operation lever 48 is set to the neutral position (N position shown in FIG. 1), a neutral state in which neither forward movement nor reverse movement is performed is instructed.

  The operation lever 48 of the combination switch 10 is configured to swing about ± 15 ° about the front / rear swing center 55 shown in FIG. As shown in FIG. 2, a front / rear swing shaft 57 extends downward from the front / rear swing center 55 of the operation lever 48. The front / rear swing shaft 57 is supported by a front / rear swing bearing 13 formed on the steering column 12. Further, below the front / rear swing bearing 13, front / rear contacts that output contact signals corresponding to forward, neutral, and reverse according to a relative angle generated between the steering column 12 and the front / rear swing shaft 57. A unit 59 is arranged.

  At the center of the operation lever 48, a base 40 is provided with a mark on the surface for indicating a speed range. The base 40 is a member that is fixed to the operation lever 48 side. An operation of switching the speed range of the construction machine in multiple stages (four stages in the embodiment shown in FIG. 1) at the end of the operation lever 48 when rotating relative to the base 40 and moving forward or backward. 1 to 4 depending on the relative angle between the rotation shaft 27 and the operation lever 48, the rotation shaft 27 for transmitting the rotation position of the operation portion 20 to the speed contact unit 29, and the rotation shaft 27 and the operation lever 48. And a speed contact unit 29 that outputs contact signals corresponding to each stage.

  From the vicinity of the front / rear swing center 55 of the operation lever 48 of the combination switch 10, two front / rear swing arms 51 are extended in a direction perpendicular to the operation lever 48. The front / rear swing arm 51 is disposed so as to swing inside the front / rear moderation imparting member 14 configured in a box shape. When the driver tries to swing the operation lever 48 beyond the front or rear switching position, the side portion of the front / rear swing arm 51 comes into contact with the inner wall of the front / rear moderation member 14, and the operation lever The swing range of 48 is limited.

  Spherical front / rear moderation imparting convex members 52 that are urged in a protruding direction by front / rear urging means 54 (biasing springs) are disposed at both ends of the front / rear swing arm 51. The front / rear moderation imparting convex member 52 is guided so as to be able to advance and retreat in a passage formed radially inside the front / rear swing arm 51. The front / rear moderation imparting convex member 52 always presses the inner wall of the front / rear moderation imparting member 14 in which three adjacent moderation imparting concave portions are formed from the inside toward the outside.

  In the plan view shown in FIG. 1, the state in which the operation lever 48 is in the neutral position is indicated by a solid line. When the operation lever 48 is in the neutral position, the two front / rear swing arms 51 are stopped at the central portion of the inner wall of the front / rear moderation imparting member 14. The two front / rear moderation imparting convex members 52 are in a state of being fitted to the central moderation imparting concave portion among the three moderation imparting concave portions formed on the inner wall of the front / rear moderation imparting member 14.

  When the driver swings the operation lever 48 to the forward switching position (the position F shown in FIG. 1), the front / rear moderation imparting convex member 52 is formed on the inner wall of the front / rear moderation imparting member 14. Trying to get on the slopes. Then, the front / rear moderation imparting convex member 52 compresses the front / rear urging means 54, and the front / rear moderation imparting convex member 52 opposes the urging force of the front / rear urging means 54 while moving in the direction of the front / rear swing center 55. Move to. Then, the front / rear moderation imparting convex member 52 gets over the convex portion formed on the inner wall of the front / rear moderation imparting member 14 and settles in the adjacent moderation imparting concave portion, and the operation lever 48 settles at the forward switching position.

  Even if the driver tries to further swing the operation lever 48 forward, the side portion of the front / rear swing arm 51 abuts against the inner wall of the front / rear moderation imparting member 14, so that the swing range of the operation lever 48 is a predetermined range. Will be limited. When the control lever 48 is swung in the forward switching position from the state where the operation lever 48 is settled, the front-rear moderation imparting convex member 52 is moved to the slope of the moderation imparting concave portion formed on the inner wall of the front-rear moderation imparting member 14. The front and rear moderation imparting convex member 52 moves up and moves in the direction of the front / rear swing center 55 against the biasing force of the front / rear biasing means 54. Then, the front / rear moderation imparting convex member 52 gets over the convex portion formed on the inner wall of the front / rear moderation imparting member 14 and settles in the central moderation imparting concave portion, and the operation lever 48 settles in the neutral position.

  Similarly, when the driver swings the operation lever 48 to the reverse position (the position R shown in FIG. 1), the front / rear moderation imparting convex member 52 is formed on the inner wall of the front / rear moderation imparting member 14. The operation lever 48 settles to the reverse switching position after overcoming the slope of the moderation imparting recess that is being settling to the adjacent moderation imparting recess. When the operating lever 48 is swung to move the switching position, the front / rear contact unit 59 outputs a contact signal corresponding to the relative angle between the steering column 12 and the front / rear swing shaft 57 to control the propulsion of the construction machine. Instruct the department to move forward, reverse, and neutral.

  Next, the structure of the moderation mechanism in the speed range switching rotary switch arranged at the end of the operation lever 48 will be described with reference to FIGS. 2 and 3 to 5. FIG. 3 is a perspective view of the moderation member 30 alone in the moderation mechanism of the rotary switch. 4 is a cross-sectional view of the operation lever 48, and is a cross-sectional view taken along the arrow IV-IV shown in FIG. FIG. 5 is a cross-sectional view taken along line VV shown in FIG.

  As shown in FIGS. 2 to 5, the moderation mechanism of the rotary switch includes a base 40 fixed to the operation lever 48, a rotation shaft 27 that is rotatably supported by the operation lever 48, and a rotation An operating portion 20 (holding member) fixed to the tip of the shaft 27 and a thin plate-like moderation imparting member 30 provided with a plurality of moderation imparting recesses that are held by the operating portion 20 and determine a speed switching position are provided.

  Further, inside the base portion 40, a spherical moderation imparting convex member 42 that is guided so as to be able to advance and retreat toward the moderation imparting member 30, and for turning the moderation imparting convex member 42 toward the moderation imparting member 30 And an urging means 44 (urging spring).

  In order to increase the holding force at each switching position, two sets of the moderation imparting convex member 42 and the rotation urging means 44 are arranged vertically. Further, when the holding force at each switching position is set to be strong, the urging force of the turning urging means 44 is set to be strong. In addition, in embodiment shown in FIG.2 and FIG.5, although embodiment using the spherical body provided with the spherical moderation provision convex part as a moderation provision convex member is shown, the moderation provision convex member is not limited to a sphere. A plunger having a spherical or conical convex portion formed at the tip can also be used.

  The operation unit 20 is a part that is gripped and rotated when the driver changes the speed range of the construction machine. Therefore, a plurality of anti-slip grooves may be arranged on the outer peripheral portion, and a synthetic resin having a good touch may be used as a material. Further, in order to reduce a problem that the operation lever 48 is switched to another switching position due to vibration or shock of the vehicle body accompanying work or traveling, it is preferable to reduce the moment of inertia of the operation lever 10 as much as possible. For this purpose, the operation unit 20 may be formed into a thin and hollow shape. Note that a cap 28 made of synthetic resin is fitted into an end portion of the operation portion 20 that is hollow.

  Next, the shape of the moderation imparting member 30 will be described with reference to FIG. In order to withstand the strong holding force at each switching position of the operation unit 20 and to have the accuracy and durability of each switching position, the moderation member 30 may be made of, for example, a thin plate and hard hardened steel. The moderation member 30 has four moderation recesses 32 that define four switching positions. Two sets of the four moderation imparting recesses 32 are formed in an arc shape with the rotational center of the moderation provision member 30 being point-symmetric.

  The disc-shaped moderation member 30 is formed with two notches, and four flanges 34 are erected on the edges of the notches. On the side wall of each flange 34, a pressure receiving surface 35 formed by a surface substantially orthogonal to the rotation direction of the moderation member 30 is formed. Further, as shown in FIG. 3, the flange 34 is formed by bending the end of the thin moderation member 30 at a right angle. When the pressure receiving surface 35 having a predetermined area is formed on the moderation providing member 30 by bending the end portion of the moderation providing member 30 to form the flange 34 and using the side wall as the pressure receiving surface 35 in this manner. Even so, the moderation imparting member 30 can be manufactured at a low cost and at a low cost.

  Next, a state in which the moderation member 30 is held in the operation unit 20 will be described with reference to FIGS. 4 and 5. FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. 2, and shows a state where the operation unit 20 and the moderation member 30 are observed with the base 40 removed for convenience of explanation.

  As shown in FIGS. 4 and 5, the moderation member 30 is held in a form that fits into a recess provided in the soft operation portion 20 (holding member). At this time, the operation portion is arranged such that the pressure-receiving surface 35 of the side wall of the flange 34 erected at four positions of the moderation member 30 and the side wall of the contact wall 24 erected on the operation portion 20 side are in surface contact. Twenty contact walls 24 are formed.

  In this way, the pressure receiving surface 35 of the moderation imparting member 30 is brought into surface contact with the contact wall 24 of the operation unit 20, thereby forming the operation unit 20 (one form of the holding member) with a soft synthetic resin. Even when the holding force at the switching position of the rotary switch is set strongly, the surface pressure applied to the side wall of the contact wall 24 of the operation unit 20 can be lowered. Thereby, deformation and wear of the side wall of the contact wall 24 when the rotational force is transmitted to the pressure receiving surface via the side wall of the contact wall 24 can be reduced. As a result, even when the holding force at each switching position is set strongly, it is possible to reduce the problem that the positional relationship between the operation unit 20 and the moderation imparting member 30 is deviated. It is possible to stabilize and improve the durability of the rotary switch.

  Here, a problem that occurs when the pressure receiving surface is not formed on the moderation member will be described with reference to FIG. FIG. 6 is a cross-sectional view of the operation unit 20, the base 40, and the moderation imparting member 930 cut along the same cutting plane as FIG. 5. In addition, about the site | part same as the site | part shown in FIG. 5, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the embodiment shown in FIG. 6, the moderation member 930 is not provided with a flange. Therefore, the moderation member 930 does not have the pressure-receiving surface 35 that secures a predetermined area as shown in FIG. 5, and uses the side edges of the moderation member 930 made of a thin plate, A rotational torque is transmitted from the abutment wall 24 to the moderation member 930.
As described above, when the rotational torque is transmitted from the contact wall 24 of the operation unit 20 through the side edge of the thin moderation member 930, the rotation of the operation unit 20 is repeated against the holding force at the switching position. The locally concentrated force is repeatedly applied to the contact wall 24 of the operation unit 20.

  Then, due to the force repeatedly applied, the contact portion of the contact wall 24 made of synthetic resin is deformed, and a trouble such as the occurrence of a wear portion 924 as shown in FIG. 6 occurs. When the contact wall 24 is deformed or worn, the relative positional relationship between the operation unit 20 and the moderation member 930 is shifted within the range of LS shown in FIG. 6, and the switching position of the rotary switch is ambiguous. Become. In addition, the operation unit 20 is accompanied by a feeling of operation that is poor in moderation as if there is a large amount of play. This inconvenience appears more prominently when the holding force at the switching position of the rotary switch is set strongly.

  Therefore, in the present invention, as shown in FIGS. 3 to 5, the moderation member 30 formed of a hard material is formed with a pressure receiving surface 35 substantially orthogonal to the rotation direction of the operation unit 20, thereby providing moderation. The contact area between the pressure receiving surface 35 on the member 30 side and the contact surface on the operation unit 20 side is increased. As a result, the surface pressure applied to the contact surface of the side wall of the contact wall 24 formed on the soft operation unit 20 side can be reduced, and deformation and wear of the contact surface can be reduced. Further, even when the holding force at the switching position is set strongly, it is possible to reduce a problem that the positional relationship between the operation unit 20 and the moderation imparting member 30 is shifted, and to stabilize the switching position over a long period of time. The durability of the switch with a moderation mechanism can be improved.

  Next, another embodiment of the pressure receiving surface in the moderation member will be described with reference to FIG. FIG. 7 is a cross-sectional view of the operation unit 120, the base 40, and the moderation member 130 cut along the same cutting plane as FIG. 5. In addition, about the site | part same as the site | part shown in FIG. 5, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 5, the embodiment has been described in which the moderation member 30 is provided with the flange 34 upright, and the pressure receiving surface 35 that transmits the operating force is formed on the side wall of the flange 34. On the other hand, the embodiment shown in FIG. 7 represents an embodiment in which the pressure-receiving surface 135 that transmits the operating force is formed on the side wall of the rear surface-side convex portion that protrudes to the rear surface side.

  In the embodiment shown in FIG. 7, when the moderation imparting concave portion 132 is formed by punching, the convex portion on the back surface side is formed by making it half-cut. It is preferable to form the outer shape of the semi-removed back side convex portion shown in FIG. 7 in a rectangular shape in plan view. And it is preferable to form the pressure receiving surface 135 formed in the side wall of the half-punch-shaped back side convex part as a plane substantially orthogonal to the rotation direction of the operation part 120. This half-punch-shaped back side convex portion is held in a form that fits into a holding concave portion 124 provided in a soft operation portion 120 (holding member). At this time, the pressure receiving surface 135 on the moderation imparting member 130 side and the contact surface of the holding recess 124 side wall are formed in surface contact.

  As shown in FIG. 7, by adopting the same configuration in the plurality of moderation imparting recesses 132, the pressure receiving surface 135 on the moderation imparting member 130 side and the contact surface of the holding recess 124 side wall on the operation unit 120 side are arranged. By increasing the contact area, the surface pressure applied to the contact surface of the inner wall of the holding recess 124 on the soft operation unit 120 side can be reduced. Further, deformation and wear of the contact surface when force is transmitted to the pressure receiving surface 135 via the contact surface of the inner wall of the holding recess 124 can be reduced.

  As a result, even when the holding force at the switching position is set strongly, it is possible to reduce the problem that the positional relationship between the operation unit and the moderation imparting member is deviated and to stabilize the switching position over a long period of time. The durability of the switch with mechanism can be improved.

  The moderation mechanism of the switch according to the present invention can be applied to the moderation mechanism in a direct-acting switch or the like in addition to the rotary mode switch with moderation mechanism shown in the above embodiment.

10 Combination switch (switch with moderation mechanism)
12 Steering column 13 Back and forth rocking bearing 14 Front / rear moderation imparting member 20 Operation part (holding member)
24 Contact wall 27 Rotating shaft 28 Cap 29 Speed contact unit 30, 130 Moderation applying member 32, 132 Moderation providing recess 34 Flange 35, 135 Pressure receiving surface 40 Base 42 Moderation providing convex member 44 Rotating biasing means 48 Operation lever 51 Front / rear swing arm 52 Front / rear moderation convex member 54 Front / rear biasing means 55 Front / rear swing center 57 Front / rear swing shaft 59 Front / rear contact unit 124 Holding recess 924 Wear portion 930 Moderation imparting member

Claims (3)

In a switch with a moderation mechanism, which is composed of an operation part and a base part that move relatively, and has a plurality of switching positions.
A moderation made of a metal plate material having a moderation imparting recess for determining the switching position, which is disposed at any one of the operation unit and the base, and having a pressure receiving surface substantially orthogonal to the moving direction of the operation unit. A soft holding member that has an application member and a contact surface that transmits an operating force to the pressure receiving surface, and holds the moderation application member;
A moderation imparting convex member having a moderation imparting convex portion configured to be detachable with respect to the moderation imparting concave portion, which is arranged at the other part of the base or the operation unit facing the moderation provision member, and the moderation provision A biasing means for biasing a convex portion toward the moderation imparting concave portion;
Equipped with a,
A switch with a moderation mechanism , wherein a side wall obtained by bending an end portion of the moderation providing member at a right angle is formed as the pressure receiving surface . The switch with the moderation mechanism is a rotary switch that can be switched to a plurality of switching positions by rotating the operation unit,
The switch with a moderation mechanism according to claim 1 , wherein the holding member and the moderation providing member are arranged in a portion on the operation unit side. A combination switch comprising the switch with moderation mechanism according to claim 1 or 2 at a tip of an operating lever that performs a swinging motion.

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