JP2534104Y2 - Canopy folding device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a canopy folding device mounted on a small excavator.

[0002]

2. Description of the Related Art FIG. 11 is a side view of a small excavator provided with a canopy 1 according to one embodiment of the prior art. Canopy 1
Then, the support column is formed so that the support outer cylinder 2 and the support inner cylinder 3 are slidable with each other, and a hydraulic cylinder 4 is provided inside the support cylinder, and the roof 5 is moved up and down by expanding and contracting the hydraulic cylinder 4. ing. Thus, when the hydraulic cylinder 4 is extended, the roof 5 covers above the seat 6. When the small excavator is parked for a long time, the hydraulic cylinder 4 is reduced. Since the roof 5 is lowered and stored at the position of the imaginary line A, it is possible to suppress rain, snow and dust from falling down, and to prevent mischief operation of a child or the like during idle time.

[0003]

When the small shovel is parked or transported for a long time, the roof of the canopy is lowered and stored to cover the upper part of the vehicle body in order to manage the aircraft. Various measures have been taken for the cover means to separate the column supporting the roof and expand or contract or refract it. However, for example, a hydraulic cylinder is used, so that the production cost is high, or safety is required. Is not considered enough. An object of the present invention is to provide a canopy folding device that can solve the above problems.

[0004]

According to the present invention, a canopy support is divided into a lower support and an upper support, and a bearing having a shaft hole oriented in the left and right horizontal direction is attached to the upper end of the lower support. The bearing is divided into a lower pedestal and an upper cap, and the rear portions of the pedestal and the cap are connected by pins, so that the bearing can be hinged up and down in the vertical direction. The peripheral surface is formed as a semicircular hole having a hole center in the left and right direction, and a half angle hole having a plurality of planes in the left and right direction is formed on the inner peripheral surface of the cap. It is formed in a bifurcated U-shape, a shaft is provided at the center of the lower end of the U-shape, and the lower surface of the shaft is formed so as to fit in the semicircular hole of the pedestal. Is pivotally displaced in the fore-and-aft direction so that it fits into the half-hole of the cap, and the shaft part is at a predetermined angle. When one of the above-mentioned planes comes into contact with one another, a boss with a pin hole in the left-right direction is erected at the front of the pedestal, and the boss and the cap are attached to the boss. A clamp plate is fixed to the front end of the lever, and the clamp plate is formed in a rectangular shape that is long when viewed from the side.The center pin hole of the clamp plate and the pin hole of the boss bracket are And the lower end surface of the clamp plate is brought into contact with the set upper surface of the cap, and the height from the lower end surface of the clamp plate to the axis of the through pin is determined by the width of the clamp plate in a side view. When changing the tilt angle of the canopy by setting it to be longer, the cap can be opened slightly upward by tilting the lever forward and turning the front of the clamp plate downward, and turning the shaft of the upper support column forward and backward. Dynamic displacement possible It was. In addition, a plate with a pin hole is provided vertically below the rear part of the lever, while a locking pin hole is formed in the bearing cap to close the bearing cap when the bearing cap is closed to fix and hold the upper support. A locking pin is inserted through the locking pin hole and the pin hole of the pin holed plate, and when the cap is opened, the lever lock is released by removing the locking pin from the pin hole. In addition, a stopper is fixedly attached to the shaft portion of the upper support, and a long hole for a stopper is formed in the bearing pedestal, and when the canopy is tilted to the front end or the rear end, the stopper is formed by the stopper. It was configured to be in contact with the rear end or the front end.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a small excavator equipped with the canopy 7 of the present invention. In the drawing, 8 is a lower base, 9 is a bearing at the upper end of the lower base 8, and 10 is an upper support.
11 is a roof. The virtual line B indicates the position when the canopy 7 is tilted by the angle θ. FIG. 2 is a front view of a main part of the canopy 7 as viewed from A in FIG. FIG. 3 is a side view of a main part of the canopy 7 in a portion B of FIG. In the drawing, reference numeral 12 denotes a mounting plate at the lower end of the lower base column 8, and 13 denotes a bearing 9
, 14 is a cap, 15 is a pin, and 16 is a lever. FIG. 4 is a plan view seen from C in FIG. In the drawing, reference numeral 17 denotes a shaft portion of the upper support 10, reference numeral 18 denotes a locking pin,
9 is a spring. FIG. 5 is a front view as viewed from D in FIG. In the drawing, reference numeral 20 denotes a boss fitting standing upright at the front of the receiving stand 13 and having a T-shaped front view, 21 a pin hole of the boss fitting 20,
22 is a screw rod for fixing the boss fitting 20, 23 and 24 are nuts, 25 is a clamp plate fixed to the front end of the lever 16, 26 is a pin hole formed in the clamp plate 25, 2
7 is a through pin. FIG. 6 is a front view, partly cut away, of a main part viewed from EE in FIG. In the drawing, reference numeral 28 denotes a plate with a pin hole fixed to the lower rear side of the lever 16, 29 denotes a pin hole of the plate with a pin hole 28, 30 denotes a pin hole for a guide formed in the cap 14, and 31 denotes a pin of the locking pin 18. A pin hole for inserting the distal end portion, 32 and 33 are spring sheets, respectively, and 34 is a split pin. The imaginary line C indicates the position where the locking pin 18 is removed when the tip of the locking pin 18 is removed from the pin holes 31 and 29 to release the lock of the lever 16.

FIG. 7 is a bottom view of the cradle 13 as seen from line FF in FIG. In the figure, reference numeral 35 denotes an elongated hole for a stopper formed in the receiving base 13 and extending in the front-rear direction. FIG. 8 is a cutaway side view of a portion G in FIG. FIG. 9 is a main part side view showing a state where the lever 16 in FIG. 8 is tilted forward. FIG. 10 is a side view of a main part showing a state in which the upper column 10 in FIG. 9 is tilted forward by an angle θ.
36 is a stopper.

Next, the structure of the folding device of the canopy 7 of the present invention will be described with reference to FIGS. The column of the canopy is divided into a lower column 8 and an upper column 10, and a bearing 9 whose shaft hole is oriented horizontally in the left and right direction is attached to the upper end of the lower column 8, and the bearing 9 is attached to the lower support. Table 13 and upper cap 14
The bearing 13 and the cap 14 are connected at their rear portions with pins 15 so that the bearing 9 can be opened and closed in the up and down direction. The cap 14 has a plurality of horizontal planes (planes a,
b) is formed, while the upper column 10 is formed in a bifurcated U-shape with the upper column 10 facing upward, and a shaft 17 is provided at the center of the lower end of the U-shape. The lower surface of 17 is formed so as to fit in the semicircular hole of the pedestal 13, and the upper surface of the shaft 17 is adapted to fit in the half hole of the cap 14, and the shaft 17 is formed by a predetermined angle θ. Any one of the plurality of planes is adapted to abut even when rotated and displaced in the front-rear direction, and a pin hole 21 (shown in FIG. 5) is provided at the front of the receiving table 13 in the left-right direction. Boss fitting 2
0, the lever 16 is provided for the boss 14 and the cap 14, a clamp plate 25 (shown in FIG. 8) is fixed to the front end of the lever 16, and the clamp plate 25 is viewed from the side. Formed into a long rectangle, and its clamp plate 25
The center pin hole 26 (shown in FIG. 5) and the through pin 27 are inserted into the pin hole 21 of the boss fitting 20, and the height from the lower end surface of the clamp plate 25 to the axis of the through pin 27. H (shown in FIG. 8) is set to be longer than the width W of the clamp plate 25 when viewed from the side, and when changing the tilt angle of the canopy, the lever 16 is tilted forward to turn the front face d of the clamp plate 25 downward. Thus, the cap 14 can be slightly opened upward, and the shaft 17 of the upper support 10 can be rotated and displaced in the front-rear direction. In addition, a plate 28 having a pin hole is provided vertically below the rear portion of the lever 16, while pin holes 30 and 31 for the locking pin 18 are formed in the cap 14 of the bearing 9 to fix and hold the upper column 10. When the cap 14 of the bearing 9 is closed, the pin hole 31 and the pin hole 2 of the
9, the distal end of the locking pin 18 is inserted and inserted. When the cap 14 is opened, the locking of the lever 16 is released by the operation of pulling out the locking pin 18 from the pin holes 31 and 29. Further, when the stopper 36 is fixed and attached to the shaft portion 17 of the upper column 10, the stopper 13 of the bearing 9 is opened with a long hole 35 for the stopper, and the canopy 7 is tilted to the front end or the rear end. The stopper 36 is configured to be in contact with the rear end or the front end of the elongated hole 35 for the stopper.

Next, the operation of the folding device of the canopy 7 of the present invention will be described. When the canopy 7 is stored and tilted, first, the locking pin 18 is pulled out in the direction of arrow E as shown in FIG. Since the lock of the lever 16 is released, the lever 16 is rotated forward (in the direction of the arrow) as shown in FIG. When the front face d of the clamp plate 25 at the front end of the lever 16 is directed downward as shown in FIG. 9, since the dimension W / 2 <the height H, the cap 14 is opened by the angle α and the lower inner peripheral surface is opened. And the gaps S1 and S2 between the upper surface of the shaft 17 and the upper surface. However, when the upper support 10 is tilted forward without forming the gaps S1 and S2, the inner peripheral surface of the cap 14 is pressed by the upper surface of the shaft 17 and opens naturally, so that the flat portions on both surfaces are newly added. The upper column 10 is tilted until it abuts. At the position where the upper support 10 is inclined forward by the angle θ as shown in FIG. At the same time, the stopper 36 fixedly attached to the shaft 17 comes into contact with the rear end of the elongated hole 35 for the stopper, so that the danger of the upper support 10 tilting further forward can be prevented. Then, by inserting the locking pin 18 into the pin hole 29 of the plate 28 with pin holes and the pin hole 31 of the cap 14 again, the lever 16 can be locked to ensure safety. When returning the stored and tilted canopy 7 to the upright state at the time of work, the tilting operation may be performed in the reverse order.

[0009]

As a means for storing and covering the canopy in the prior art canopy, a column supporting the roof is divided,
Although various considerations have been made to expand or contract, the manufacturing cost is high because, for example, a hydraulic cylinder is used, or the safety is not sufficiently considered. However, in the canopy tilting device of the present invention, the canopy column is divided into a lower column and an upper column, and a bearing whose shaft hole is oriented horizontally in the left and right directions is attached to the upper end of the lower column. Split the bearing into a lower pedestal and an upper cap,
The rear portions of the pedestal and the cap are connected by pins, so that the bearing can be hinged up and down in the vertical direction, and the inner peripheral surface of the pedestal is formed as a semicircular hole having a center in the left and right direction, A half-angle hole having a plurality of planes in the left-right direction is formed on the inner peripheral surface of the cap. A shaft portion is provided in the portion, the lower surface of the shaft portion is formed so as to fit in the semicircular hole of the pedestal, and the upper surface of the shaft portion is adapted to fit in the half hole of the cap. One of the plurality of planes is adapted to abut even when it is rotated and displaced in the front-rear direction by a predetermined angle. Therefore, when storing and tilting the canopy, first, the locking pin is pulled out. Since the lock of the lever is released, the lever is rotated forward. When the front surface of the clamp plate at the front end of the lever faces downward, the cap can be opened above the cap. Then, when the upper support is tilted forward by a predetermined angle θ, one of the flat portions on the inner peripheral surface of the cap and one of the flat portions on the upper surface of the shaft portion are in contact with each other. At the same time, the stopper fixedly attached to the shaft comes into contact with the rear end of the elongated hole for the stopper, so that the danger of the upper support column tilting further forward can be prevented. Then, by inserting the locking pin again into the pin hole of the plate with the pin hole and the pin hole of the cap, the lever can be locked to ensure safety.

[Brief description of the drawings]

FIG. 1 is a side view of a small shovel equipped with a canopy of the present invention.

FIG. 2 is a front view of a main part of the canopy as viewed from A in FIG. 1;

FIG. 3 is a side view of a main part of the canopy in a portion B of FIG. 2;

FIG. 4 is a plan view seen from C in FIG. 3;

FIG. 5 is a front view as viewed from D in FIG. 3;

FIG. 6 is a front view of a partially cutaway main part seen from EE in FIG. 4;

FIG. 7 is a bottom view of the cradle as viewed from FF in FIG. 3;

8 is a cutaway side view of a portion G in FIG.

9 is a main part side view showing a state where the lever in FIG. 8 is tilted forward.

10 is a main part side view showing a state where the upper support column in FIG. 9 is tilted forward by an angle θ.

FIG. 11 is a side view of a small shovel having a canopy according to the related art.

[Explanation of symbols]

 1, 7 canopy 8 lower base 9 bearing 10 upper support 13 receiving stand 14 cap 16 lever 17 bearing 18 locking pin 20 boss fitting 25 clamp plate 28 pin hole plate 29, 30, 31, 21, 26 pin hole 35 stopper Elongate hole 36 stopper

Claims (3)

(57) [Scope of request for utility model registration] 1. A canopy for covering the upper side of a seat of a small shovel, wherein the canopy is attached to an upper part of a vehicle body when the small shovel is parked or transported. Divided into pillars and
At the upper end of the lower base, mount a bearing with a shaft hole centered horizontally on the left and right, divide the bearing into a lower pedestal and an upper cap, and pin the rear part of the pedestal and the cap to each pin. To allow the bearing to open and close hinges in the vertical direction, and to form an inner peripheral surface of the pedestal into a semicircular hole having a hole center in the left and right direction, and to form an inner peripheral surface of the cap in the left and right direction. A half-angle hole having a plurality of planes is formed, while the upper column is formed in a U-shape with two forks on the left and right, and a shaft is provided at the center of the lower end of the U-shape. The lower surface is formed so as to fit in the semicircular hole of the cradle, and the upper surface of the shaft portion is rotated and displaced in the front-rear direction by a predetermined angle so that the upper surface fits in the half hole of the cap. At any time, one of the above-mentioned plurality of planes should be in contact with and fit to the front of the cradle. A boss with a pin hole in the right direction is erected, a lever is provided for the boss and the cap, a clamp plate is fixed to the front end of the lever, and the clamp plate is lengthened in a side view. The clamp pin is inserted into the center pin hole of the clamp plate and the pin hole of the boss fitting, and the lower end surface of the clamp plate is brought into contact with the set upper surface of the cap. Set the height from the lower end face to the axis of the through pin to be longer than the width of the clamp plate when viewed from the side.When changing the tilt angle of the canopy, tilt the lever forward to lower the front of the clamp plate. A canopy tilting device characterized in that the cap can be slightly opened upward by being turned, and the shaft portion of the upper support can be rotated in the front-rear direction. 2. A canopy folding device according to claim 1, wherein a pin hole plate is vertically provided below a rear portion of a lever, and a locking pin hole is formed in a bearing cap. When the cap of the bearing is closed in order to fix and hold the upper column by drilling, the locking pin is inserted through the locking pin hole and the pin hole of the plate with the pin hole, and the cap is opened. A lever for releasing the lock of the lever by pulling out the locking pin from the pin hole. 3. A canopy folding device according to claim 1, wherein a stopper is fixedly mounted on a shaft of the upper support, and a long hole for the stopper is formed in a bearing base of the bearing. And a stopper configured to contact the rear end or the front end of the elongated stopper hole when the canopy is tilted to the front end or the rear end.