JP4450362B2 - Drive system switching device - Google Patents

Description

  The present invention relates to a drive system switching device having a changeover switch capable of switching a vehicle drive system to four-wheel drive or two-wheel drive, and a differential lock operation switch capable of turning a differential lock on and off.

  The four-wheel drive vehicle has a changeover switch for selectively switching the driving method to four-wheel drive or two-wheel drive, and a drive having a diff lock operation switch for performing on / off operation of a diff lock for driving the front wheels integrally. For example, in a four-wheel buggy, the drive system switching device is fixed to the handlebar. However, in order to enable the driver to easily determine which driving method has been selected, conventionally, there are two push button switches that can be changed into a protruding state or an immersive state by pressing the changeover switch and the differential lock operation switch, For example, Patent Document 1 discloses a drive system switching device having a shielding plate that cannot be operated.

The drive system switching device disclosed in this document has two push buttons, and has a shielding plate that can swing over the push buttons and covers the upper part of one of the push buttons. When the push button (first push button) as the changeover switch is in the protruding state, the push button (second push button) as the differential lock operation switch is set in the immersive state, and the shielding plate is positioned above the push button. When the first push button is pressed and made into an immersive state, the shielding plate can be swung over the first push button and the second push button is pressed. It was possible to operate.
JP 2002-87087 A

  However, in the above conventional drive system switching device, in order to enable the diff lock to be turned on / off, (1) first press the first push button to make it immersive, and (2) attach the shielding plate to the first The operation is troublesome because three operations are required to turn the diff lock on or off by swinging up to 1 push button and (3) further pressing the second push button. there were. In addition to the first push button and the second push button, it is necessary to provide a shielding plate. Therefore, the number of parts increases correspondingly, and the apparatus becomes larger in order to secure the swing range of the shielding plate. There was also a problem of end up.

  The present invention has been made in view of such circumstances, and provides a drive system switching device capable of turning on / off a diff lock with a simple operation and reducing the number of components and the overall size of the device. It is to provide.

According to the first aspect of the present invention, there is provided a drive system including a changeover switch capable of selectively switching a vehicle drive system to a four-wheel drive or a two-wheel drive, and a differential lock operation switch capable of operating a differential lock on or off. In the switching device, the change-over switch includes a push-button switch that allows a drive method to be changed by projecting or immersing the push button by pressing, and the differential lock operation switch is moved by moving an operation knob. When the push button is in a protruding state, the operation knob is in contact with the push button and its movement is restricted, and when the push button is in an immersive state, the contact state is It is allowed to move to a position where it is released and covers the push button, so that it can be operated.

  According to a second aspect of the present invention, in the drive system switching device according to the first aspect, the operation knob is configured to slide substantially linearly, and is in contact with the push button when the push button is in a protruding state. The slide is regulated, and the contact state is released when the slide is in an immersive state, and the slide is allowed to a position covering the push button.

  According to the first aspect of the present invention, the operation knob constituting the differential lock operation switch is restricted from moving when the push button is in the protruding state, and is allowed to move when the push button is in the depressed state. Therefore, the diff lock can be turned on / off by two operations, and the diff lock can be turned on / off by a simple operation. Furthermore, since a shielding plate or the like for making any one operation impossible is unnecessary, the number of parts can be reduced and the entire apparatus can be downsized.

  According to the second aspect of the present invention, the substantially linear slide operation of the operation knob is restricted or permitted by the state of the push button (projecting state or immersive state), and after the slide, the operation knob covers the push button. In addition to enabling reliable operation, the drive system switching device can be downsized while maintaining operability.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The drive system switching device according to the present embodiment is fixed in the vicinity of the grip grip on the handlebar of the four-wheel buggy, the driver can switch the drive system to either two-wheel drive or four-wheel drive, and the diff lock is It can be turned on and off. Specifically, as shown in FIGS. 1 and 2, this drive system switching device is disposed on the top of the housing 1, and includes a push button switch 4 as a changeover switch and a slide switch 5 as a lock operation switch. It is composed of

  Further, a holding part 3 capable of holding the throttle lever 2 and the handle bar H is also provided at the lower part of the housing 1, and a throttle function, a holding and fixing function, and a driving system switching function are integrally configured. In the present embodiment, the drive system switching device is disposed in the housing 1 in which the throttle lever 2 and the clamping portion 3 are formed. However, the drive system switching device may be configured separately from the housing 1. In the case of separate bodies, the drive system switching device may be arranged at a position different from the handle bar H.

  The push button switch 4 can selectively switch the four-wheel buggy drive method to four-wheel drive or two-wheel drive, and the operation is performed by pressing the push button 4a. The push button 4a is in a protruding state (see FIG. 3) or an immersion state (see FIG. 4) with respect to the housing 1 by pressing, and in the protruding state, a predetermined circuit (not shown) is formed and the driving method is set. In addition to two-wheel drive, a predetermined circuit (not shown) is formed in the immersive state, and the drive system is four-wheel drive. That is, each time the push button 4a is pressed, the protruding state and the immersive state are sequentially performed, and the protruding state or the immersive state is maintained by one pressing operation.

  The slide switch 5 can be operated to turn on or off a diff lock for driving the front wheels of the four-wheel buggy as a unit, and the operation is performed by sliding the operation knob 5a substantially linearly. The operation knob 5a is configured so that the differential lock can be switched from on to off by changing the slide operation from a restricted state (see FIG. 3) to a permitted state (see FIG. 4). Has been. That is, as shown in FIG. 3, when the push button 4a is in the protruding state (when the driving method is selected as the two-wheel drive), even if the operation knob 5a is slid to the right in the figure, Since it abuts on the push button 4a, its sliding operation is restricted.

  Then, as shown in FIG. 4, when the push button 4a is pressed (the drive method is switched to four-wheel drive) and the housing 1 is immersed, the contact state of both members is released. The operation knob 5a is allowed to slide rightward in the figure. That is, the differential knob cannot be turned on by sliding the operation knob 5a unless the push button 4a is immersed and the drive system is switched from two-wheel drive to four-wheel drive. When the operation knob 5a is slid to the right in the figure in such an allowable state, the differential lock is turned on and the front wheel is driven as a unit, and as shown in FIG. 5, the operation knob 5a pushes the push button 4a. It is in a covered state. In the figure, reference numeral 1a denotes a long hole formed in the housing 1 to allow the operation knob 5a to slide while being guided.

  Accordingly, the operation knob 5a cannot be operated during two-wheel drive, and the push button 4a cannot be operated when the diff lock is turned on. Therefore, the operation can be ensured. Further, since the operation knob 5a is configured to slide substantially linearly, the operation can be simplified while avoiding the complexity of the apparatus configuration. In order to change the drive system from the state of FIG. 5 (the state where the diff lock is turned on) to the two-wheel drive, the operation knob 5a is slid to the left side in the drawing to move the operation knob 5a from the push button 4a, The push button 4a is pressed again to be in the protruding state.

Next, a reference example will be described.
The drive system switching device according to the reference example is fixed in the vicinity of the grip grip on the handlebar of the four-wheel buggy as in this embodiment, and the driver can switch the drive system to either two-wheel drive or four-wheel drive. In addition, as shown in FIG. 6, a push button switch 4 serving as a changeover switch and a rotating slide switch serving as a lock operation switch are provided on the upper portion of the housing 1. It is comprised from 6. In addition, the same component as this embodiment attaches | subjects the same code | symbol, and shall omit detailed description.

Button switch 4 push, in the driving method of the 4-wheel buggy 4-wheel drive or two-wheel drive ones can be selectively switching operation, the operation is similar to the implementation form, line by pressing the push button 4a It is configured to be As shown in FIG. 7, the push button 4a has a moving member 4aa extending downward, and a shoulder 4ab (step) is formed in the middle of the moving member 4aa. When the push button 4a is in the projecting state, a predetermined circuit (not shown) is formed and the driving method is two-wheel drive. When the push button 4a is depressed to enter the depressed state, a predetermined circuit (not shown) is formed. Thus, the drive system is set to four-wheel drive.

  The rotary slide switch 6 can be operated to turn on or off a differential lock that drives the front wheels of the four-wheel buggy as a unit. The operation is performed by rotating the operation knob 6a along the peripheral edge of the push button 4a. It is configured to be done. As shown in the figure, the operation knob 6a has a roller 6aa that is disposed below and slides integrally with the operation knob 6a, and a hole 6ac that passes through the roller 6aa in the vertical direction. The moving member 4aa is inserted. In addition, a recess 6ab is formed on the inner peripheral surface of the hole 6ac to engage with the shoulder 4ab formed on the moving member 4aa when the push button 4a is in a protruding state.

  With the above configuration, when the push button 4a is in the protruding state (that is, when the two-wheel drive is used), the push operation of the push button 4a is allowed, while the shoulder 4ab that is a part of the push button 4a is Since it is in a state of being engaged with the recess 6ab, the rotation operation of the operation knob 6a is restricted and the differential lock cannot be turned on. When the push button 4a is pressed from this state to switch to four-wheel drive, the moving member 4aa moves downward as shown in FIG. 8, and the position of the shoulder 4ab moves downward accordingly.

  Thus, when the push button 4a is immersed in the housing 1, the engagement state of the shoulder portion 4ab with the concave portion 6ab is released, so that the operation knob 6a is allowed to rotate. In this state, as shown in FIG. 9, when the operation knob 6a is rotated by a predetermined angle in the direction of the arrow in the drawing along the peripheral edge of the push button 4a, the differential lock is turned on. Further, the roller 6aa slides with the rotation of the operation knob 6a. In the state after the rotation, as shown in FIG. 10, the back surface 6ad of the roller 6aa is engaged with the shoulder 4ab, and the push button 4a is engaged. The pressing operation is restricted.

  Therefore, since the operation knob 6a cannot be operated during two-wheel drive, and the push button 4a cannot be operated when the diff lock is turned on, the operation can be ensured. Further, since the operation knob 6a rotates along the peripheral edge of the push button 4a, the entire apparatus can be further downsized while avoiding the complexity of the apparatus configuration. In addition, in order to change the drive system from the state of FIG. 10 (the state where the diff lock is turned on) to the two-wheel drive, the operation knob 6a is rotated to the initial position, and the shoulder 4ab of the push button 4a and the back surface 6ad of the roller 6aa. After releasing the engaged state, the push button 4a is pressed again to be in the protruding state.

According to the above you facilities embodiment, it is possible to perform the ON operation of the differential lock from two-wheel drive in two operations (slide pressing operation and the operation knob of the push button), it is possible to improve the operability In addition, since a separate member such as a conventional shielding plate can be dispensed with, it is possible to reduce the number of parts in the drive system switching device and to reduce the size of the entire device.

  As mentioned above, although this embodiment was described, this invention is not limited to these, For example, the operation knob of a diff lock operation switch is a thing of another form (what slides in a substantially linear form, or what slides while rotating) The operation may be restricted or permitted based on the protruding state or the immersive state of the push button as the changeover switch. In addition to the four-wheel buggy, the present invention can be applied to other various vehicles (for example, automobiles that can select four-wheel drive or two-wheel drive).

The change-over switch includes a push-button switch that allows the drive method to be changed by projecting or immersing the push-button by pressing, and the differential lock operation switch from a slide switch that is operated by moving the operation knob. made, the operation knob, when the push button is protruded state, the movement is restricted by contact with the pushbutton, when the pushbutton is in retracted state, covers the push button contact state is canceled As long as movement to a position is permitted and operation is possible, the present invention can be applied to an apparatus to which an appearance and other functions are added.

Front view of a drive system switching device according to implementation embodiments of the present invention Left side view showing the drive system switching device Schematic diagram showing the positional relationship between the push button and the operation knob in the drive system switching device (two-wheel drive state) Schematic diagram showing the positional relationship between the push button and the operating knob in the drive system switching device (four-wheel drive state) FIG. 2 is a schematic diagram showing a positional relationship between a push button and an operation knob in the drive method switching device (a state where a differential lock is turned on), (a) a view seen from the front side, and (b) a view seen from the bottom side. Front view showing a drive system switching device according to a reference example Schematic diagram showing the positional relationship and internal structure of the push button and operation knob in the drive system switching device (two-wheel drive state) Schematic diagram showing the positional relationship and internal configuration of the push button and operation knob in the drive system switching device (state of four-wheel drive) FIG. 4 is a schematic diagram showing the positional relationship between the push button and the operation knob in the drive system switching device (a state in which the diff lock is turned on), and is a view seen from the front side Schematic diagram showing the positional relationship and internal configuration of the push button and the operation knob in the drive system switching device (a diagram showing the positional relationship and internal configuration of the push button and the operation knob in the state of FIG. 9)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Throttle lever 3 Clamping part 4 Push button switch (changeover switch)
4a Push button 5 Slide switch (lock operation switch)
5a Operation knob

Claims (2)

A changeover switch capable of selectively switching the vehicle drive system to four-wheel drive or two-wheel drive;
A differential lock operation switch that can be operated to turn on or off the differential lock; and
In the drive system switching device provided with
The change-over switch includes a push-button switch that allows a drive method to be changed by projecting or immersing the push-button by pressing, and the differential lock operation switch is a slide that is operated by moving an operation knob. Consisting of switches,
The operation knob abuts on the push button when the push button is in the protruding state, and its movement is restricted, and when the push button is in the immersive state, the contact state is released to cover the push button. A driving system switching device characterized in that movement to a position is allowed and operation is possible.   The operation knob is configured to slide substantially linearly. When the push button is in the protruding state, the operation knob is in contact with the push button to restrict the slide, and when in the immersed state, the contact state is released. The drive system switching device according to claim 1, wherein sliding is allowed to a position covering the push button.

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