JP3986466B2 - Snowplow bar stopper for snowplow - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a snowfall bar stopper for hanging a snowfall bar of a snowplow.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a snowfall bar stopper for a snowplow is known in which a snowfall bar is sandwiched between clamps and the clamp is fixed to an auger housing cover (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Examined Patent Publication No. 4-30487 (pages 2, 4, 5 and 6, 7)
[0004]
The above Patent Document 1 will be described in detail with reference to the drawings.
FIG. 8 is a reproduction of FIG. 6 of Patent Document 1. However, the reference numerals are reassigned for convenience of explanation.
Reference numeral 100 denotes a snow removal machine, 101 denotes an auger part, 102 denotes a blower part, 103 denotes a chute part, 104 denotes a cover, and 110 denotes a snowfall bar.
[0005]
In such a snow remover 100, the snow on the front surface is scraped off by the rotating blade of the auger unit 101, and is sucked out by the rear blower unit 102 and discharged to the outer peripheral direction by centrifugal force. Remove snow by flying to
The auger part 101 is covered with a cover 104, and a snowfall bar 110 is attached to the upper part of the cover 104.
[0006]
FIG. 9 is a reprint of FIG. 7 of Patent Document 1. However, the reference numerals are reassigned in accordance with FIG.
101 is an auger section, 102 is a blower section, 103 is a chute section, 104 is a cover section, 105 is a clamp section, 110 is a snowfall bar, and 111 is a groove. Then, it is shown that the snowfall bar 110 is detachably attached to the cover 104 by inserting the snowfall bar 110 into the groove 111 with the clamp 105.
[0007]
[Problems to be solved by the invention]
In Patent Document 1, there is a risk that snow covers the auger housing cover portion 104 during snow removal, and the snow slides along the inclined surface of the cover portion 104 in FIG. 8 to pry open the clamp 105 in FIG. 9 and deform the clamp 105. is there. When the deformation is significant, the clamp 105 is damaged, and it is necessary to repair and replace the clamp 105, which increases repair costs.
[0008]
Accordingly, an object of the present invention is to provide a snowfall bar latch that can prevent damage to the snowfall bar latch that latches the snowfall bar.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention provides a snow remover comprising a snowfall bar latch for hanging a snowfall bar on an outer surface of an auger housing surrounding the auger, wherein the snowfall bar latch is a snowfall. A plate spring member that presses the bar against the auger housing, a coupling member that couples one end of the plate spring member to the auger housing, and the plate that is elastically deformed in a cantilever manner in a direction away from the auger housing with the coupling member as a fulcrum And a stopper portion that limits the deflection of the spring member by a certain amount.
[0010]
Usually, the snowfall bar can be attached to the outer surface of the auger housing by the action of the leaf spring member.
When the leaf spring member opens away from the auger housing due to snow or the like, and the degree of opening is likely to exceed the elastic deformation region, the stopper portion functions to play a role of preventing further opening.
As a result, the leaf spring member is not likely to be plastically deformed, and there is no fear of deformation or damage.
Accordingly, the repair cost for repairing or replacing the leaf spring member is not required.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 shows a snowplow according to the present invention. A snowplow 10 comprises a fuselage 11 as a transmission case, and an electric motor 12 for traveling (only the left-side electric motor is shown) is attached to the lower left and right sides of the fuselage 11. The traveling unit 13 is connected to the left and right electric motors 12, the snow removing engine 14 is attached to the upper part of the machine body 11, and the auger device 20 driven by the engine 14 is attached to the front part of the machine body 11. In addition, this is a walking type snow removal work machine that includes an operation unit 16 that covers the engine 14 with a cover 15 and extends rearward and upward from the upper portion of the machine body 11, and is pushed by itself from behind the operation unit 16.
[0012]
The auger device 20 is provided with a blower housing 21 in the airframe 11, an auger housing 22 is provided at the front of the blower housing 21, a drive shaft 23 extends forward from the engine 14, and the drive shaft 23 passes through the blower housing 21. The blower 24 disposed in the blower housing 21 is attached to the auger housing 22 in the middle of the drive shaft 23, and a power transmission member 25 (auger mission) having the tip of the drive shaft 23 disposed at the center in the vehicle width direction is attached. The left and right auger shafts 26 (only the left auger shaft is shown) are extended from the power transmission member 25 in the left-right direction, and the left and right augers 27 (only the left auger are shown) are connected to each auger shaft 26. It is provided.
[0013]
As the snowplow 10 moves forward, the left and right augers 27 bite into the snow and break the snow. The left and right augers 27 scrape the broken snow into the blower housing 21 at the center in the vehicle width direction. The snow collected can be lifted up by the blower 24, passed through the shooter 28 provided on the upper portion of the blower housing 21, and removed to the outside of the snow removal machine 10.
[0014]
In the figure, reference numeral 30 denotes a snowfall bar latch, which is a means for fixing a snowfall bar used for removing snow adhering to the auger shaft 26 and auger 27 of the auger apparatus 20 during snow removal work.
[0015]
Hereinafter, the snow throwing rod latch 30 will be described in detail.
FIG. 2 is an enlarged view of two parts of FIG. 1, and the snowfall bar latch 30 includes a leaf spring member 40 that presses the snowfall bar 31 against the auger housing 22 and one end of the leaf spring member 40 at the auger housing 22. The bend δ of the leaf spring member 40 elastically deformed in the form of a cantilever in the direction away from the auger housing 22 (arrow (1)) with the bolt 61 as a fulcrum is fixed. It is a means which uses as a main part the stopper part 50 which restrict | limits by quantity.
[0016]
FIG. 3 is an exploded perspective view of the snow plow bar stopper. In order to further understand the configuration of FIG.
The leaf spring member 40 is a band plate-like elastic member including a fixed claw portion 41, a flat portion 42, a coupling member hole 43, a fixed claw receiving hole 44, and a snow plow bar support portion 45.
[0017]
The stopper portion 50 is cut and raised from the flat portion 51, the fixed claw portion 52 formed by bending from the flat portion 51, the coupling member hole 53 formed in the center of the flat portion 51, and the left and right sides of the flat portion 51. This is a metal plate pressing member comprising side wall portions 56, 56 and leaf spring support portions 54, 54 formed at the tips of these side wall portions 56, 56.
[0018]
Then, the leaf spring member 40 is mounted on the auger housing 22 in a manner of fitting the securing claw portion 41 into the rectangular securing hole 64 opened in the auger housing 22, and the securing claw is inserted into the securing claw receiving hole 44 of the leaf spring member 40. The stopper part 50 is mounted on the leaf spring member 40 in the manner of fitting the part 52.
Next, the bolt 61 is passed through the coupling member holes 53, 43, 65 in this order and screwed into the weld nut 62.
[0019]
As a result, as shown in FIG. 2, since the fixing claw portion 41 and the fixing claw portion 52 are fitted in the fixing hole 64, the components can be easily positioned with each other. Even if it acts on the stopper portion 50, there is no fear that the leaf spring member 40 or the stopper portion 50 moves along the outer surface of the auger housing 22.
[0020]
FIG. 4 is a view taken in the direction of arrow 4 in FIG. 2, and the snowfall bar latch 30 includes a coupling member hole 43 and a fixed claw receiving hole 44 in the flat portion 42 of the leaf spring member 40, and a fixed claw in the stopper portion 50. The portion 52 and the coupling member hole 53 overlap each other, and the snow-falling rod support portion 45 of the leaf spring member 40 is latched by sandwiching the snowfalling rod recess 32 of the snowfalling rod 31, and in this state, the leaf spring It shows that the part has a structure in which the flat part 42 of the member 40 and the flat part 51 of the stopper part 50 are fastened with bolts 61 and weld nuts 62 (not shown).
[0021]
FIG. 5 is a perspective view showing a state where the snowfall bar and the snowfall bar latch are latched. The state where the snowfall bar 31 is fixed to the auger housing 22 by two snowfall bar latches 30 and 30. Show. It should be noted that the snowfall bar 31 was provided with a snowfall bar recess 32 only at the left end of the figure. By doing so, even if it is the snow-falling rod 31 from which length differs, it can be hooked on the two snow-falling rod latches 30 and 30. FIG.
[0022]
Next, the operation of the snow plow bar stopper having the above structure will be described.
FIG. 6 is an operational view (part 1) of the snowfall bar latch according to the present invention, in the case where the snow wall 71 is not so large even when the snowplow is stationary or when the snowplowing work is being advanced. It is.
[0023]
In this case, the tip 46 of the leaf spring member 40 of the snowfall bar latch 30 and the snowfall bar 31 are spaced apart from the snow wall 71 and are not in contact with each other. As a result, even if the snow removal work is performed, no load is applied to the snow dropping bar latch 30 in particular.
[0024]
FIG. 7 is an operation view (part 2) of the snowfall bar latch according to the present invention, in which the snowplow is moving forward to perform snow removal work and the snow wall 71 is large.
In this case, in the snowfall bar latch 30, the tip 46 of the leaf spring member 40 together with the snowfall bar 31 comes into contact with the snow wall 71 and warps backward by the weight of the snow wall 71.
[0025]
However, the leaf spring support portion 54 of the stopper portion 50 contacts the warped leaf spring member 40 and supports the snowfall bar 31 and the snowfall rod support portion 45 of the leaf spring member 40 at the contact point 55 between the stopper and the leaf spring.
[0026]
As a result, the leaf spring member 40 is accommodated by warpage within the range of elastic deformation, and deformation and breakage that cannot be used do not occur. And it is possible to provide a snow remover that extends the life of the snowfall bar latch 30 and is easy to handle.
[0027]
The leaf spring member 40 constituting the snowfall bar latch 30 is not particularly limited in size and shape, but has a shape that is elastically deformed into a cantilever shape in a direction away from the auger housing 22 and has sufficient spring properties. It is important to be able to demonstrate. As an example, a stainless steel plate for springs excellent in corrosion resistance (for example, SUS304CSP material or SUS301CSP material in JIS) can be adopted.
[0028]
Further, the stopper portion 50 is not limited to a small size, shape, and material, but requires a member that can firmly support the weight of the warped leaf spring member 40, the snowfall bar 31, and the snow wall 71.
[0029]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
According to the first aspect of the present invention, normally, the snowfall bar can be attached to the outer surface of the auger housing by the action of the leaf spring member.
When the leaf spring member opens away from the auger housing due to snow or the like, and the degree of opening is likely to exceed the elastic deformation region, the stopper portion functions to play a role of preventing further opening.
As a result, the leaf spring member is not likely to be plastically deformed, and there is no fear of deformation or breakage.
Accordingly, the repair cost for repairing or replacing the leaf spring member is not required.
[Brief description of the drawings]
FIG. 1 Snow remover according to the present invention. FIG. 2 is an enlarged view of part 2 of FIG. 1. FIG. 3 is an exploded perspective view of a snowfall bar latch. FIG. 6 is a perspective view showing the state of the snowfall bar and the state of the snowfall bar latch. FIG.
FIG. 7 is an operation diagram of the snowfall bar latch according to the present invention (part 2).
FIG. 8 is a reprint of FIG. 6 of Patent Document 1. FIG. 9 is a reprint of FIG. 7 of Patent Document 1.
DESCRIPTION OF SYMBOLS 10 ... Snow remover, 20 ... Auger apparatus, 22 ... Auger housing, 30 ... Snowfall rod latch, 31 ... Snowfall rod, 40 ... Leaf spring member, 45 ... Snowfall rod support part, 50 ... Stopper part, 54 ... leaf spring support, 61 ... bolt, 62 ... weld nut.

Claims (1)

In a snowplow equipped with a snowfall bar stopper for hanging a snowfall bar on the outer surface of an auger housing surrounding the auger,
The snowfall bar latch includes a leaf spring member that presses the snowfall bar to the auger housing, a coupling member that couples one end of the leaf spring member to the auger housing, and a direction away from the auger housing with the coupling member as a fulcrum. And a stopper for restricting the bending of the leaf spring member elastically deformed into a cantilever shape by a certain amount.

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