JPH0553196A - Projecting device for design at the time of drawing character, graphic or the like on sheet or the like - Google Patents

Abstract

PURPOSE:To improve the work efficiency by moving a projector to an arbitrary position of the whole work floor, and executing the height adjustment of the projector held by a trolley on a counter balance device. CONSTITUTION:By moving a traverse rail 2 along a fixed rail 1, and also, moving a trolley 3 in the direction being orthogonal to the fixed rail 1 along the traversing rail 2, a projector 4 is moved to the upper part of a prescribed place of a work floor F where a sheet in placed on which a character, etc., are drawn. Also, the projector 4 attached to the trolley 3 is allowed to ascend and descend by a slide rail 7, and adjusted to prescribed height. This projector 4 is held by a counter balance device, therefore, a worker can execute easily its vertical motion by a manual operation. Subsequently, by drawing an operation drawing stiring of a clamp device, a plate spring is clamped by a clamper, and the projector 4 is fixed in its height position. In such a state, a projection image of a character, etc., drawn by the projector 4 is reflected on the sheet of the lower part, and a character, etc., are drawn along this projection image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for projecting a projection image of a rough sketch on a cloth sheet or the like when drawing characters or figures on the cloth sheet or the like.

[0002]

2. Description of the Related Art Conventionally, when a large character or figure is drawn on a cloth sheet such as a tent or a curtain, a method of drawing a sketch on the sheet and drawing a character or a figure along with the sketch is adopted. Was there. However, this method requires a lot of time and skill to draw a sketch, which is a major factor that hinders the efficiency of this type of work.

As a device for solving such a problem, a device has been developed which projects characters or figures to be drawn on a sheet from above. According to this device, a negative film projection of characters and figures is projected on a sheet placed below, and this projection is used to draw the desired characters and figures as a sketch. The work of is completely unnecessary.

[0004]

However, in this conventional apparatus, since the projector is attached to the upper part of the fixed post, it is necessary to move the sheet directly below the projector, which results in poor workability. Further, there is a drawback that the alignment of the sheets is complicated. In particular, when drawing some large characters on the sheet, it is necessary to move the sheet each time one character is drawn, and in such a case, there is a problem that workability is particularly poor.

The present invention has been made in view of the above conventional problems, and provides a device capable of freely moving a projector to an arbitrary position on the entire work floor without requiring movement and alignment of the seat. Is what you are trying to do.

[0006]

Therefore, according to the present invention, there is provided a pair of fixed rails provided above both sides in the width direction of the work floor.
A traverse rail spanning between the fixed rails and movable along the fixed rails, a trolley movable along the traverse rails, a trolley attached to the trolleys via slide rails so as to be movable up and down, and a counter Its basic feature is that it consists of a projector held by the trolley body by a balancing device.

[0007]

In the device of the present invention, the traverse rail is movable along the fixed rail, and the trolley on which the projector is mounted is movable along the traverse rail in the direction orthogonal to the fixed rail. Can be moved above any place. In addition, the projector, which is attached to the trolley via slide rails so that it can move up and down, is held by a counterbalance device, so it can be raised and lowered freely by the operator's manual operation, and the size of the letters and figures to be drawn. The height can be adjusted arbitrarily and easily according to.

[0008]

1 to 8 show one embodiment of the device of the present invention. As shown in FIGS. 1 to 4, the device of the present invention is provided between a pair of fixed rails 1 provided above both sides in the width direction of a work floor F, and bridged between the fixed rails 1.
It is composed of a traverse rail 2 movable along a fixed rail 1, a trolley 3 movable along the traverse rail 2, a projector 4 mounted on the trolley so as to be vertically movable. 2 and 3 show a state in which the projector 4 has descended to its lower limit position, and FIG. 4 shows a state in which it has descended to its upper limit position. .. The pair of fixed rails 1 are usually installed on the ceiling above the work floor F or the upper portions of both side walls of the work floor.

The traverse rail 2 comprises a pair of parallel rails 21 with appropriate spacing. A traveling saddle 5 that is movable on the fixed rails 1 by rollers 8 is attached to each fixed rail 1, and the traverse rail 2 is suspended and held at both ends thereof by the traveling saddles 5 so that the fixed rails 1 are It can be traversed in the longitudinal direction. Further, a traveling saddle 6 which is movable on the traverse rail 2 by rollers 9 is attached to the traverse rail 2.

The trolley 3 is provided with a projector 4 which can be vertically moved up and down via a slide rail 7 at the lower part thereof, and can be moved in the longitudinal direction of the traverse rail 2 by being suspended and held by the traveling saddle 6. It has become.

The mounting structure of the projector 4 to the trolley 3 will be described with reference to FIGS. 5 and 6. Intermediate slide plates 71 slidable downward are provided on both sides of the main body 31 of the trolley 3, with respect to the intermediate slide plates 71. A pair of slide rails 7 including a lower slide plate 72 that can slide further downward are attached, and the projector 4 is fixed to the pair of slide rails 7 (lower slide plate 72).

FIG. 7 concretely shows the structure of each slide rail 7. Reference numeral 73 denotes a fixed side rail fixed to the trolley body 31, and the fixed side rail 73 has a strength higher than that of the slide rail. For consideration, the inner slide plate and the lower slide plate, which will be described below, are configured to have a U-shaped cross-section, and the rails of each of the intermediate slide plates, which will be described below, are placed on the three sides on the inside in the width direction. A pair of rails 731a having a hook-shaped or arc-shaped cross section,
731b and 731c are provided, respectively.

The rail portion 73 inside the fixed side rail 73
Three intermediate slide plates 71a, 71b, 71c are arranged to face 1a, 731b, 731c. Each of these intermediate slide plates has a pair of rail portions 7 on one side thereof.
11a, 711b, 711c and 712a, 712
b and 712c are projectingly provided, and the pair of rail portions 711a, 711b, and 711c on one side thereof are the rail portions 731.
It is located inside a, 731b, 731c. These rail portions 711a, 711b, 711c and the rail portion 73
The bearing 10 is interposed between the rails 731a, 731b, and 731c, and each intermediate slide plate includes the rail portion 731a,
It is slidable in the vertical direction with respect to 731b and 731c.

Inside the stationary rail 73, a lower slide plate 72 having a U-shaped cross section is further arranged. The lower slide plate 72 is provided with a pair of hook-shaped or arc-shaped rail portions 721a, 721b, 721c on the outside of the U-shaped both sides and the inside of the U-shaped central side, respectively. Inside the rail portion of the intermediate slide plate 71
Rail portions 712a, 712b, 712c are arranged so as to be positioned. These rail portions 721a and 721
b, 721c and rail portions 712a, 712b, 712c
A bearing 10 is interposed between the lower slide plate 7 and
2 is vertically slidable with respect to the intermediate slide plates 71a, 71b, 71c.

In the structure of the slide rail 7 as described above, one of the fixed side rail 73 and the intermediate slide plate 71, and one of the intermediate slide plate 71 and the lower slide plate 72 has the other rail portion. Since it is restrained from the outside, it is possible to secure sufficient strength in the width direction and the thickness direction of the slide rail.

Further, as shown in FIG. 6, the projector 4 which can be moved up and down by the slide rail 7 is held on the trolley body 31 by the plate spring type counter balance device 11 so that its height can be freely adjusted. Is becoming That is, three counter balance devices 11 of a leaf spring winding type are provided on the upper part of the trolley body 31, and the leaf spring 11 fed from a winding drum (not shown) therein is provided.
0 is connected to the upper end of the projector 4 and holds the projector 4. The counter balance device 11 is not limited to the leaf spring system described above, and any known device that can balance and suspend heavy objects can be applied.

Further, a clamp device 12 for fixing the projector 4 which can be raised and lowered by the slide rail 7 and the counter balance device 11 at an arbitrary height position is provided above the trolley body 31. The clamp device 12 includes a clamper 13 capable of advancing and retracting the leaf spring 110 from both sides thereof, and a link mechanism 14 for advancing and retracting the clamper 13 in the leaf spring direction.
And an operating drawstring 15 for operating the link mechanism 14.
Etc.

The link mechanism 14 has a pair of levers 16a, 16b for moving the clamper 13 forward and backward with respect to the leaf spring direction by its up-and-down motion, and both levers 16a, 16b.
a rotation arm 17 rotatably pivoted through a longitudinal center portion at an intermediate position between b and the levers 16
It is composed of link members 18a and 18b that connect the ends of a and 16b and the respective ends of the rotating arm 17, and the levers 16a and 16b are rotated through both link members 18a and 18b by the rotation of the rotating arm 17. By tilting
The structure is such that the clamper 13 moves back and forth.

As shown in FIG. 8, the operating drawstring 15 is composed of two cord bodies, and these cord bodies are guided by guide sheaves 19a and 19b provided on the trolley body 31, and the end portions thereof are guided. Are connected to the respective ends of the rotating arm 17. Therefore, this operation pull cord 15
By pulling one of the cords, the rotating arm 17 can be rotated in any direction, and the clamper 13 can clamp and release the leaf spring 110.

The projector 4 is a known device that can be loaded with a negative film of a rough sketch of a character or figure to be drawn, and can project the projected image downward, and a description of its structure will be omitted.

Next, the method of using the apparatus of this embodiment as described above will be described. The traverse rail 2 is moved along the fixed rail 1 and the trolley 3 is orthogonal to the fixed rail 1 along the traverse rail 2. By moving the projector 4 in the direction, the projector 4 is moved above a predetermined place on the work floor F on which a sheet on which characters and the like are to be drawn is placed. Further, the projector 4 attached to the trolley 3 is moved up and down by the slide rail 7 and adjusted to a predetermined height. Since the projector 4 is held by the counter balance device 11, the projector 4 can be easily raised and lowered by a manual operation of the operator. Next, the pull string 15 for operation of the clamp device 12 is pulled to clamp the leaf spring 110 by the clamper 13, and the projector 4 is fixed at the height position. In this state, a projection image of a character or the like to be drawn by the projector 4 is projected on a lower sheet, and the character or the like is drawn along the projection image. In the case of continuously drawing characters and the like, the horizontal rail 2 and the trolley 3 are moved at the stage where one character has been drawn, and the projector 4 is moved right above the position where the next character should be drawn.

As shown in FIG. 5, the projector 4 which can be raised and lowered is
It is possible to project the projection image in the range of L _{2 at} the upper limit position and in the range of L _{1 at} the lower limit position.

[0023]

As described above, according to the present invention, the projector can be freely moved to any position on the entire work floor, and the height of the projector held on the trolley by the counter balance device 11 can be adjusted by the operator. Since it can be freely performed by the manual operation, the movement and position adjustment of the sheet unlike the conventional case is completely unnecessary, and this kind of work can be performed very efficiently.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention.

FIG. 2 is a front view showing an embodiment of the device of the present invention.

FIG. 3 is a side view showing an embodiment of the device of the present invention.

FIG. 4 is a front view showing a state where the projector is raised from the state shown in FIG.

FIG. 5 is a front view partially showing the trolley in the state of FIG.

FIG. 6 is a front view partially showing the trolley and its upper structure in the state of FIG. 4;

FIG. 7 is a horizontal sectional view of the slide rail in the state shown in FIG.

8 is a perspective view showing a configuration of an operation drawstring which constitutes the clamp device shown in FIG.

[Short description of reference signs] 1 ... Fixed rail, 2 ... Traverse rail, 3 ... Trolley, 4 ... Projector, 5 ... Running saddle, 6 ...
Traveling saddle, 7 ... slide rail, 11 ... counter balance device, 110 ... leaf spring

Claims (1)

[Claims] 1. A device provided above both sides in the width direction of the work floor.
A pair of fixed rails, a traversing rail that is movable along the fixed rails and spans between the fixed rails, a trolley that is movable along the traversing rails, and a trolley that can be moved up and down via slide rails. A projection device for drawing characters, figures, etc. on a sheet, etc. that is attached to a projector and is held by the trolley body by a counterbalance device.