JP2012183928A - Structure of stay for tilt cab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a stay for a tilt cab that can make compatible the easy visual recognition of a state of a stopper and the operability of the stopper.SOLUTION: The structure of the stay for the tilt cab includes: a pair of stays 21 that include a cab side stay 25 and a frame side stay 26 and are bent when the cab is in a normal state while being deployed linearly when the cab is in a tilt state; a rotating lever 22 for catching an overlapped part of the cab side stay 25 and the frame side stay 26 therein to fix the cab side stay and the frame side stay 26; and a stopper 23 erecting from the cab side stay 25 so as to turnable to support the rotating lever 22 to fix it.

Description

  The present invention relates to a stay structure for a tilt cab.

  In general, vehicles such as medium-sized and larger trucks can be tilted by tilting the cab toward the front of the vehicle so that the engine and the like located under the cab can be maintained.

  As shown in FIG. 4, the cab is tilted by providing the cab 1 and the vehicle frame 2 with a tilt fulcrum 3 for tilting and a pair of stays 4 so as to support the tilted cab 1. Yes. As shown in FIG. 5, the pair of stays 4 is configured to be rotatable via a shaft portion 5, and is configured to be rotatable to a vehicle frame 2 and a cab side stay 6 that is rotatably connected to the cab 1. The frame side stay 7 is connected. Further, at the time of tilting, a part of the cab side stay 6 and a part of the frame side stay 7 overlap each other in the vicinity of the shaft part 5. Further, the back plate 8 located on the upper surface of the cab side stay 6 is provided with a plurality of long holes 9 along the extending direction of the cab side stay 6.

  In the vicinity of the overlapping portion of the cab-side stay 6, a plate-like rotation lever 10 is provided via a shaft portion 11 so as to be positioned in one of the long holes 9. A rectangular notch 12 corresponding to the frame side stay 7 is provided at the center of the side portion of the rotary lever 10. Further, a spring 13 attached to the cab-side stay 6 is connected to the lower portion of the rotation lever 10 so as to urge the upper portion of the rotation lever 10 to the frame-side stay 7.

  A stopper 14 is provided in the vicinity of the rotation lever 10 of the cab side stay 6, and the stopper 14 is rotatably supported by being positioned in another long hole (not shown) of the cab side stay 6. . Further, the stopper 14 includes a stopper shaft portion 15 having a predetermined length, a circular portion 16 that is located at the tip of the stopper shaft portion 15 and is formed in a distorted ellipse shape, and is bent from the end of the stopper shaft portion 15 to be cab side A bending portion 17 that is pivotally supported on the side surface of the stay 6 is provided. Further, the stopper shaft portion 15, the rotating portion 16, and the bent portion 17 are all formed of wire.

  When the cab 1 is tilted from the normal time, the pair of stays 4 are linearly expanded from the bent state to support the cab 1, and the rotation lever 10 is raised from the cab side stay 6. The cab side stay 6 and the frame side stay 7 are clamped by the notch 12, and the cab side stay 6 and the frame side stay 7 are fixed. Next, the stopper 14 is rotated toward the rotary lever 10, the circumferential portion 16 of the stopper 14 is inserted into the long hole 9 so as to press the side surface of the rotary lever 10, and the rotary lever 10 is urged to urge the rotary lever 10. The notch 12 is prevented from being detached from the overlapping portion of the cab side stay 6 and the frame side stay 7.

  On the other hand, when the cab 1 is returned from the tilt time to the normal time, the stopper 14 is rotated in a direction away from the rotary lever 10 so that the rotating portion 16 of the stopper 14 is pulled out from the long hole 9 and rotated in the reverse procedure. The bias of the lever 10 is released. Subsequently, the rotation lever 10 is rotated toward the cab side stay 6, the notch 12 is removed from the overlapping portion of the cab side stay 6 and the frame side stay 7, and the cab side stay 6 and the frame side stay 7 are fixed. ing. The pair of stays 4 are bent so that the cab side stay 6 and the frame side stay 7 are folded.

  For example, Patent Document 1 shows a general technical level of a stay structure of a tilt cab.

JP-A-11-310168

  However, since the stopper 14 is formed of a wire, in the configuration in which the stopper 14 is inserted into the long hole 9, the position and state of the stopper 14 cannot be visually recognized unless approaching the stopper 14. Further, when the rotating portion 16 of the stopper 14 is pushed into the long hole 9 so as to fix the rotating lever 10, the stopper 14 is inserted all the way into the long hole 9 so that the stopper 14 is not easily removed. There is a problem that it is difficult to achieve both the fixation of the rotary lever 10 and the operability of the stopper 14.

  An object of the present invention is to provide a stay structure for a tilt cab in which the state of the stopper can be easily visually confirmed and compatible with the operability of the stopper.

The present invention is a stay structure of a tilt cab that maintains a state in which the cab is tilted forward,
A pair of stays that have a cab-side stay and a frame-side stay and bend in the normal time of the cab and expand linearly when tilted;
A rotation lever that fixes the cab side stay and the frame side stay by sandwiching the overlapping part of the cab side stay and the frame side stay during tilting,
The present invention relates to a stay structure for a tilt cab, which is provided with a stopper that rotates and rises from a cab-side stay so as to support and fix the rotation lever.

  Thus, when the cab is tilted, the cab side stay and the frame side stay are developed in a straight line, and the overlapping portion of the cab side stay and the frame side stay is sandwiched between the cab side stay and the frame side stay by the rotation lever. Secure the stay. Next, the stopper is rotated and started up, and the rotation lever is supported and fixed.

In the present invention, the rotating lever includes a lever knob that rises from the cab side stay during tilting,
The stopper preferably includes a support that supports the lever knob when the rotary lever is fixed.

  In this invention, it is preferable that the said rotation lever is provided with the convex part which latches a stopper.

  In this invention, it is preferable that the said stopper is provided with the convex part which latches to a cab side stay, and is provided with the stopper knob part used at the time of rotation.

  According to the present invention, when the rotating lever is fixed, the stopper is turned from the cab side stay and is raised, so that the positions and states of the rotating lever and the stopper can be easily recognized. Also, when fixing the rotation lever, it is only necessary to rotate the stopper from the cab side stay and support the rotation lever, so there is no need for a strong insertion force to insert the stopper all the way into the long hole. It is possible to achieve an excellent effect that it is possible to achieve compatibility with the operability.

It is the whole conceptual diagram which shows the example which implements the stay structure of the tilt cab of this invention. It is a stay structure of the tilt cab of this invention, and is a conceptual diagram which shows the state which raises a rotation lever. It is a stay structure of the tilt cab of this invention, and is a conceptual diagram which shows the state which raises a stopper. It is a conceptual diagram which shows the state of a tilt cab. It is a conceptual diagram which shows the conventional rotation lever and a stopper.

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

  1 to 3 show an embodiment for carrying out the present invention.

  As shown in FIGS. 1 to 3, the stay structure of the tilt cab according to the embodiment includes a pair of stays 21 and a rotating lever 22 that fixes the pair of stays 21 so as to support the inclined cab 1 (see FIG. 4). And a stopper 23 for fixing the rotary lever 22.

The pair of stays 21 is configured to be rotatable via a shaft portion 24 and is also rotatable to a cab side stay 25 that is rotatably connected to the cab 1 and the vehicle frame 2 (see FIG. 4). And a frame side stay 26 to be connected. Here, the cab-side stay 25 includes a back plate 27, one side plate 28, and the other side plate (not shown), and is formed in a U-shaped cross section. A face plate 29, one side plate 30, and the other side plate (not shown) are formed in a U-shaped cross section, and a part of the cab side stay 25 and the frame side around the shaft portion 24 when tilting. A part of the stay 26 overlaps. Further, the back plate 29 of the cab side stay 25 is provided with a plurality of long holes 31 along the extending direction of the cab side stay 25.

  The rotation lever 22 is supported by the side plate 28 of the cab side stay 25 via the shaft portion 32 in the vicinity of the overlapping portion of the cab side stay 25 and the frame side stay 26, and the position of the long hole 31 of the cab side stay 25 is It is installed so that it can rotate. The rotary lever 22 includes a lever side portion 33 on which the shaft portion 24 is disposed, and a lever knob portion 34 that extends from the upper end of the lever side portion 33 in a direction away from the frame side stay 26. Is provided with a lever back plate 35, one lever side plate 36, and the other lever side plate (not shown), and is formed in a U-shaped cross section. Further, a rectangular cut 37 corresponding to the back plate 29 of the frame side stay 26 is provided at the center of the lever side portion 33, and the back plate 27 of the cab side stay 25 is provided below the lever side portion 33. A spring 38 attached to the frame side stay 26 is connected to the upper portion of the lever side portion 33 to urge the frame side stay 26. In addition, an arrangement portion 39 is formed at a lower portion of the tip of the lever knob portion 34 with a predetermined width from the tip so as to correspond to the stopper 23, and a convex portion 40 directed downward is provided at a location adjacent to the arrangement portion 39. I have.

  The stopper 23 is disposed on the cab side stay 25 through a certain distance from the rotary lever 22 on the side opposite to the frame side stay 26, and can be rotated on the side plate 28 of the cab side stay 25 via the shaft portion 41. It is supported by. In addition, the stopper 23 overlaps the back plate 27 of the cab side stay 25, the one side plate 28, and the other side plate (not shown), the stopper back plate 42 (support), the one stopper side plate 43, The other stopper side plate 44 (see FIG. 3) is provided and formed in a U-shaped cross section. Further, the stopper back plate 42 has a certain length and rises from the back plate 27 of the cab side stay 25 by rotation. Further, the central position of one stopper side plate 43 and the other stopper side plate 44 is provided with a convex portion 45 that can be locked to the back plate 27 of the cab side stay 25, and one stopper side plate 43 and the other stopper side plate 44. On the oblique upper surface of the side plate 44, there is provided a stopper knob 46 that bends outward from the side. Further, as shown in FIG. 2, one stopper side plate 43 has substantially the same width as one side plate 28 of the cab side stay 25, and the other stopper side plate 44 is the other side of the cab side stay 25. It has substantially the same width as a face plate (not shown, the same width as the side face plate 28). Here, the width, size, shape, and color of one stopper side plate 43 and the other stopper side plate 44 are not particularly limited as long as they can be easily visually recognized.

When the pair of stays 21 are linearly developed and fixed, the rotary lever 22 is rotated so as to rise from the cab side stay 25 via the lever knob 34 of the rotary lever 22, and the cab is cut by the notch 37. The overlapping portion of the side stay 25 and the frame side stay 26 is sandwiched, and the cab side stay 25 and the frame side stay 26 are fixed. Next, with the rotating lever 22 raised, the stopper 23 is rotated from the cab side stay 25 toward the rotating lever 22 by the stopper knob 46, and the convex portion 45 of the stopper 23 is locked to the back plate 27. The lever knob 34 is supported using the stopper back plate 42 as a support.

At this time, the stopper 23 is in a state of rising from the cab side stay 25, and the presence of one stopper side plate 43 and the other stopper side plate 44 having the same width as the cab side stay 25 causes the engine or the like to be stopped. A worker or the like who performs maintenance is visually inspected to fix the rotating lever 22 and the pair of stays 21.

  On the other hand, when the pair of stays 21 are bent and folded, the rotary lever 22 is lifted away from the stopper 23, the stopper 23 is rotated toward the cab side stay 25, and the cab side stay 25 is rotated. Overlay on. Next, the lever knob 34 of the rotating lever 22 is rotated toward the back plate 27 of the cab side stay 25, and the notch 37 is removed from the overlapping portion of the cab side stay 25 and the frame side stay 26. The fixation of the frame side stay 26 is released.

  Thus, according to the embodiment, when the rotation lever 22 is fixed, the stopper 23 is turned up from the cab side stay 25 and is thus raised. The position and state of can be easily visually confirmed. Further, one stopper side plate 43 and the other stopper side plate 44 of the stopper 23 have substantially the same width as the side plate 28 of the cab-side stay 25, so that when viewed from the side (the direction of FIG. 1), The position and state can be easily visually confirmed. Further, when the rotation lever 22 is supported and fixed, it is only necessary to turn the stopper 23 up from the cab side stay 25 and to support the rotation lever 22, so that the rotating portion 16 of the stopper 14 (see FIG. 5). ) To the back of the long hole 9 is unnecessary, and both the fixing of the rotating lever 22 and the operability of the stopper 23 can be achieved.

  In the embodiment, the rotation lever 22 includes a lever knob 34 that rises from the back plate 27 of the cab-side stay 25 when tilting, and the stopper 23 has an arrangement portion 39 of the lever knob 34 when the rotation lever 22 is fixed. When the support body of the stopper back plate 42 to be supported is provided, when the rotary lever 22 is fixed, the stopper 23 and the rotary lever 22 have a gate shape when viewed from the side (direction of FIG. 1). The position and state of the stopper 23 can be visually recognized more easily.

  Further, in the embodiment, when the rotation lever 22 is provided with the convex portion 40 for locking the stopper 23, the stopper 23 can be fixed at an appropriate position, so that the operability of the stopper 23 can be further improved. it can. Further, even if the rotating lever 22 is accidentally pushed downward by the convex portion 40 of the rotating lever 22, the stopper 23 and the rotating lever 22 are prevented from rotating downward, so the cab side stay 25 and the frame side It is possible to prevent the stay 26 from being erroneously released.

  In the embodiment, the stopper 23 includes a convex portion 45 that is locked to the cab-side stay 25 so that the stopper 23 can be fixed at an appropriate position, and includes a stopper knob 46 that is used at the time of rotation. 23 can be easily operated, and compatibility with the operability of the stopper 23 can be further improved. Further, since the stopper knob 46 bends outward from the side surface of the stopper side plate 43, the position and state of the stopper 23 can be more easily seen as viewed from the front (longitudinal direction of the cab side stay 25).

  It should be noted that the stay structure of the tilt cab of the present invention is not limited to the above-described embodiments, but may have other shapes, and various modifications may be made without departing from the scope of the present invention. Of course you get.

DESCRIPTION OF SYMBOLS 1 Cab 2 Vehicle frame 21 A pair of stay 22 Rotating lever 23 Stopper 25 Cab side stay 26 Frame side stay 34 Lever knob part 40 Convex part 42 Stopper back plate (support)
45 Convex 46 Stopper knob

Claims (4)

A stay structure for a tilt cab that maintains the cab tilted forward,
A pair of stays that have a cab-side stay and a frame-side stay and bend in the normal time of the cab and expand linearly when tilted;
A rotation lever that fixes the cab side stay and the frame side stay by sandwiching the overlapping part of the cab side stay and the frame side stay during tilting,
A tilt cab stay structure comprising a stopper that pivots and rises from a cab-side stay so as to support and fix the rotating lever. The rotating lever includes a lever knob that rises from the cab-side stay during tilting,
The tilt cab stay structure according to claim 1, wherein the stopper includes a support body that supports the lever knob when the rotating lever is fixed.   The stay structure for a tilt cab according to claim 1, wherein the rotation lever includes a convex portion for locking the stopper.   The stay structure for a tilt cab according to any one of claims 1 to 3, wherein the stopper includes a convex portion that is engaged with the cab-side stay, and a stopper knob portion that is used during rotation.

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