JPH0511178B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a sheet glass construction machine used primarily at construction sites to accurately fit sheet glass into a predetermined window frame or wall opening.

Conventional technology In recent years, building window glass has become important in addition to improving the livability of the building.
Due to aesthetic demands, larger glass is being used, and it is not uncommon for each piece of glass to weigh more than 100 kg. In the past, when installing such heavy window glass, a crane was used to hoist the glass from the rooftop or outdoors to a designated wall, and a considerable number of workers placed the glass onto the designated window frame on temporary scaffolding. Otherwise, a forklift vehicle or the plate glass handling vehicle proposed by the present applicant in Utility Model Publication No. 55-41504 etc. was driven into the building to transport the plate glass to the wall opening and install it. be.

However, in the former construction method, the glass plates are lifted one by one from the ground, which not only has low work efficiency but also lacks stability in the lifted state, which poses a risk of damaging the glass plates. In addition, in the latter construction work, the weight of the vehicle is large, so it is easy to damage the floor, and since the plate glass is mechanically twisted and fitted into the opening, it is difficult to give the plate glass delicate complex movements, and therefore the opening There were problems such as it took a lot of effort to fit it into the section.

Problems to be Solved by the Invention The present invention has been made in order to solve the above-mentioned drawbacks and problems in the conventional sheet glass fitting work, and it is easy to manually finely adjust the fitting posture of the sheet glass with respect to the opening, and it is safe. The purpose is to provide a high-quality plate glass construction machine.

Means for Solving the Problems In order to achieve the above object, the present invention includes an arm supported on a traveling carriage so as to be movable up and down and back and forth, and a joint attached to the tip of the arm that rotates the upper end in the left-right and front-back directions. A freely pivoted L-shaped member, a support frame supported on the horizontal part of the L-shaped member so that it can be slid back and forth and fixed, and a plate glass suction pad provided on the support frame so that its tip protrudes forward from the L-shaped member. The gist is the configuration of a sheet glass construction machine having the following.

Function (1) The traveling trolley picks up a sheet of glass from the horse with its suction pad, suspends it from its arm, transports it just in front of the opening, and stops perpendicular to the opening.
Lock the arm and L-shaped member so that they do not rotate during transportation.

(2) Next, adjust the attitude of the support frame by sliding and rotating it back and forth with respect to the horizontal part of the L-shaped member, and align the support frame and the plate glass with respect to the rotational support shaft in the front-rear direction of the upper end of the L-shaped member. The support frame is fixed to a horizontal portion at a position where the rotational moment is balanced and the edges of the glass plate and the opening are parallel to each other.

(3) After that, manually operate the support frame to tilt the plate glass back and forth, move it back and forth from side to side, raise and lower it, or perform a combination of these operations to fit the plate glass into the opening window frame. .

(4) Next, release the vacuum on the suction pad to release the plate glass, and lock the arm mechanism and hanging mechanism again to complete the work.

(5) In addition, in paragraph (1), if the traveling bogie cannot enter just before the opening, the bogie is stopped at a position biased to one side from just before the opening, and the arm turns and the L
The combined movement with the pivoting of the shaped member allows the glass plate to be positioned directly in front of the center of the opening.

Embodiment FIGS. 1 and 2 are an elevational view and a plan view showing the entire embodiment of the present invention, in which 1 is a battery running cart, 2 is a swivel table having a lifting device, and a swivel shaft 3 is not shown. It has a swivel lock device. Reference numeral 4 designates a control panel equipped with a trolley steering handle, a start/stop switch, etc., 5 a power battery, and 6 a well-known arm support mechanism having a four-bar linkage mechanism 7 attached to both sides of the swivel base 2; The base of an arm 8 constituting one side of the joint link mechanism is supported so as to be movable back and forth.

A joint 9 is pivotally supported at the tip of the arm 8 by a pin 10, and the upper end of the vertical part 13a of the L-shaped bracket 13 is pivoted back and forth to the pivot bracket 12, which is supported on the joint 9 so as to be pivotable around its vertical hanging shaft 11. movably pivoted, L
The lower center of a support frame 15 is supported on the horizontal part 14 of the shaped metal fitting 13 so as to be able to slide back and forth, rotate, and be fixed, and a vacuum suction pad 16 whose tip protrudes forward from the vertical part 13a is fixed to the support frame 15. , the suction pad 16
The plate glass G is supported by suction.

The structure of each part will be explained in detail below. First, the swivel table 2 has a built-in lifting device and a swivel device, and the operating table 4
Elevation, rotation, and anti-swivel locking are performed by operations from .

The four-bar link mechanism 7 is a known one, and as shown in FIG. 3, it consists of a pair of long links 7a and 7b in the rigid direction provided on both outer surfaces of the swivel base 2, a short link 7c in the lateral direction, and an arm. 8 constitute a pair of left and right parallelogram links, and links 7b and 7c on both sides
A pair of rollers 18 are pivotally supported on a connecting shaft 17 that passes through each connecting point with the swivel table side plate 19, and a horizontal window hole 20 through which the connecting shaft 17 passes is provided. The roller 18 is guided by fixed upper and lower horizontal rails 21.

The link 7a is extended downward, and a vertical window hole 22 is provided in the side plate 19 facing this extension, and a pair of vertical rails 2 are fixed to the inside of the side plate 19 on both sides thereof.
3, and 2 each on the left and right to fit between the rails 23.
Of the rollers 24, a shaft 25 that pivotally supports the upper left and right rollers 24 connects the extended lower end of the link 7a with a connecting fitting 26 that narrows the inner and outer sides of the lower end, thereby pivotally supporting the lower left and right rollers 24. The shaft 27 is inserted through the lower part of the connecting fitting 26, and the shafts 25 and 27 are passed through the legs 29 of the rack base 28 to support the rack base 28 so as to be vertically movable.

The rack 30 of the rack base 28 engages with a pinion 33 that is rotatably driven by a motor shaft 31 via a reduction gear train 32 to move up and down, thereby vertically moving the connecting fitting 26 and the lower end of the link 7a up and down.

FIG. 4 is an explanatory diagram of the operation of the four-bar link mechanism 7. When the lower end a of the link 7a moves vertically by the rack 30 and the point b of the connecting shaft 17 of the links 7b and 7c moves horizontally, the tip c of the arm 8 The point moves independently in the vertical and horizontal directions by a length obtained by multiplying each of the vertical and horizontal movement amounts by the link length ratio L/l.
Therefore, the suspended object at point c is raised and lowered by moving up and down point a using power, but the horizontal movement at point c is easily moved by input because the suspended object is almost weightless.

The link plate 35 loosely fitted onto the connecting shaft 34 between the link 7a and the arm 8 and the rear protruding end of the connecting fitting 26 are connected by a bar 36 and the fitting 37, and the link plate 35 and the upper part of the joint 9 are connected by a turnbuckle. They are connected by a connecting rod 38, and the joint 9 is held vertically against the forward and backward tilting of the link 7a.

As shown in FIG. 5, the pivot fitting 12 and the vertical shaft 1
1 is provided with a friction brake 39 that can be operated from the operation console 5.
change the direction or keep the direction constant.

The L-shaped fitting 13 is connected to the turning fitting 1 by the horizontal pin 40.
2, the horizontal part 14 has a cylindrical body 41 protruding rearward from the joint 9 directly below it, a flanged bush 42 that fits onto the cylindrical body 41, and a threaded shaft 43 supported at both ends of the cylindrical body 41. , a nut 44 screwed onto a screw shaft 43 and a bush 42 are connected by a rod 46 passing through an axial groove 45 provided in a cylindrical body 41, and a handle 4 is attached to the outer end of the screw shaft 43.
7 is rotated to move the bush 42 back and forth.

The bush 42 passes through a hole in the center of the lower part of the support frame 15, and a taper collar 4 is provided between the hole and the bush 42.
8 will be provided. The outer collar of the tapered collar 48 is fixed to the support frame 15, and the inner collar 48a is pressed against the inner surface of the outer collar by rotation of a fastener 49 screwed into the bush 42, thereby connecting the support frame 15 and the bush 42.
By closing the space between them or separating them, the button 42
The horizontal tilting adjustment of the support frame 15 is made possible.

The support frame 15 is formed by connecting vertical members 50 on both sides and a horizontal member 51 connecting the lower parts thereof in a U shape, and swingable electric suction pads 16 are attached to the upper and lower parts of the vertical members 50. 52 is a handle for operating the support frame.

The support plate 53 fixed to the lower part of the swing fitting 12 has its forked rear end 54 protruding above both sides of the cylindrical body 43, and is located between the forked rear end 54 and the bracket 55 fixed to the horizontal member 51. The spring 56 is tensioned. The spring 56 releases the support frame 1 when the tapered collar 48 is unfastened or the glass plate G is released.
5 is prevented from rapidly tilting left and right or front and back due to sudden changes in supported weight.

Further, when the support frame 15 is advanced to fit the glass plate, the spring 56 is slightly stretched to moderate the speed of advancement of the support frame, thereby reducing the impact applied to the glass plate G.

When inserting the glass plate G supported by the support frame 15 into the opening, in order to tilt the glass plate G back and forth, as shown in FIG. The vertical part 13 is inserted into and removed from the hole 59 provided in the vertical part 12.
A is configured so that it can be locked in a tilted position of 20 degrees back and forth from a vertical position.

The lock pin 58 is urged forward by a coil spring 60 and a cap screw 61, and both ends of the pin 63 inserted through the long groove 62 of the lock pin 58 are engaged in the fork grooves of a fork fitting 65 having a fulcrum shaft 64. By pulling the fork arm 66 from the operating table 4 with the wire 67, the lock pin 58 is released.
When the glass plate G is allowed to escape from the hole 59, the glass plate G returns to its vertical position.

Next, referring to FIG. 7, the operation of fitting a plate glass into an opening using the construction machine of the present invention will be explained.

(1) First, the traveling cart 1 sucks the plate glass G from the horse onto the suction pad 16, and raises the rack 30 to lift the plate glass. Next, rotate the handle 47 to move the support frame 15 to a position where the weight of the plate glass G is balanced, lock the pivot axis of the swivel base 2, and with the brake 39 activated, move the plate glass G to the front of the opening. Then, the cart 1 is stopped at a position perpendicular to the opening.

(2) Remove the lock and brake, and manually push the support frame 15 forward while tilting it diagonally. The arm 8 is driven by a motor to adjust the height of the glass plate, and the rotating base 2 and the rotating fitting 12 rotate to properly bring the glass plate G to face the opening in parallel.

(3) Manually twist the plate glass G in the direction of the arrow to fit it into the opening window frame W, lower the arm 8 using the motor to lower the plate glass into the window frame W, release the vacuum of the suction pad, and complete the fitting work. do.

In the above operation, the support frame 15 can be tilted diagonally at the same time as being raised by the motor, or the raising and twisting can be performed in combination at the same time.

As described above, the plate glass is suspended weightlessly by the arm 8, and the weight balance is maintained with the support plate, so the position of the plate glass with respect to the opening,
Manual fine adjustment of the posture is easy, and fitting can be done smoothly, quickly, and safely.

In addition, if there is an obstacle etc. in the path of the traveling trolley 1,
If it cannot be stopped perpendicularly to the front of the opening, the plate glass G is positioned parallel to the front of the opening by appropriately combining the large-radius rotation of the arm 8 and the small-radius rotation of the pivot fitting 12. Biting can be performed by the same operation as .

Furthermore, if the glass plate G is tilted to the left or right when the glass plate G is suspended, the support frame 15 can be rotated by loosening the fasteners 49 and rotating the support frame 15 by loosening the taper collar 48a. After manually correcting the horizontal inclination of the plate glass G, tighten the fastener 49.
Just retighten. Note that even if the fasteners 49 are partially tightened, the support frame 15 itself will not tilt to the left or right, but if manual tilting is possible, the plate glass can be safely fitted while manually adjusting its posture when fitting the plate glass. be able to.

If you want to fit the glass plate G from the outside instead of the inside of the opening, insert the lock pin in the pin case 57 into the hole 58, fix the glass plate G in a position tilted back and forth 20 degrees with respect to the vertical plane, and then close the opening. After the pin is brought out of the hole 58, the pin is removed from the hole 58 to return the plate glass G to the vertical position, and then fitted into the opening by the same operation as described above.

Effects of the Invention The present invention has the above-mentioned mechanism, and can move a plate glass suspended on an arm back and forth in a weightless state.
The glass plate and support frame are suspended in a balanced manner, and the L-shaped member is free to tilt back and forth and rotate horizontally, making it easy to manually fine-tune the position and posture of the glass plate relative to the opening. This has the effect of allowing the fitting operation into the opening to be carried out extremely smoothly, quickly and safely.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an elevation view, FIG. 2 is a plan view, FIG. 3 is a partially cutaway perspective view of the arm support mechanism, and FIG. 4 is a four-bar linkage mechanism. Fig. 5 is a perspective view showing a part of the support frame support structure in cross section, Fig. 6 is an exploded perspective view showing the back and forth tilting structure of the L-shaped member, and Fig. 7 is a plate glass to the opening. FIG. 2 is an explanatory diagram showing various fitting procedures, in which a shows an elevation view and a side view of one-sided full fitting, b shows top and bottom fitting, and c shows left and right fitting, respectively. 1... Traveling trolley, 8... Arm, 9... Joint,
13... L-shaped member, 14... Horizontal part, 15... Support frame, 16... Suction pad.

Claims (1)

[Claims] 1. An arm supported on a traveling trolley so that it can be raised and lowered and moved back and forth, an L-shaped member whose upper end is rotatably supported in the left-right and front-back directions on a joint attached to the tip of the arm, and a horizontal part of the L-shaped member. A plate glass construction machine having a support frame that can be slid back and forth and fixed, and a plate glass adsorption pad provided on the support frame so that its tip protrudes forward from an L-shaped member.