JPH0321925Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a cradle for workpieces used in conjunction with woodworking machines such as automatic planing machines, finish planing machines, grooving machines, and tenon machines. It is something.

(Prior art) Board materials used as architectural fittings, furniture stands, side panels, top panels, etc. are made from square timbers that are cut into appropriate lengths with a circular saw, band saw, etc., and then cut with a planer. The flat surface is smoothed, and if necessary, it is further finished with a super-finished board to make it even smoother, and depending on the part, it is further grooved.
They undergo processing such as mortising and assembly.

These woodworking operations are secondary to sawmilling.
Instead of traditional manual work, most of the work is done by automatic woodworking machines. Usually, the workpiece is fed from one inlet side onto the bed of the woodworking machine, and is fed toward the outlet side on the opposite side while passing the top surface. Depending on the shape of the member, the side surfaces may also be processed at the same time to complete the process.

Small workpieces weigh 3 to 5 kg, and large ones weigh up to 30 kg. They are fed by processing tools or manually, and are sent from the inlet side to the outlet side. heading to In large-scale woodworking factories such as prefabricated building material factories, the workpiece processed by one processing machine is received by a belt conveyor or transfer roller and sent to the next process, but in small and medium-sized woodworking factories, the workpiece is sent to the exit side. A pedestal is placed to receive processed plate materials that are discharged one after another to prevent impact from falling or collisions caused by falling plate materials sent later.

In addition, if the length of the work material in the feeding direction is short, it will fall or fall when it reaches the end of cutting, which will hinder the loading of the next work material. A stand is required.

The thickness of the plate material to be processed varies from 10 mm to 300 mm, so the height from the floor to the top of the bed of each machine varies considerably depending on the type of processing, the difference in thickness of the plate material, the manufacturer and design policy. Because of the difference, the height of the pedestal also needs to be changed.

As mentioned above, there is no problem in large-scale factories because they can install conveyors, roller pedestals, etc. according to the height of each processing machine and adopt an assembly line system, but small and medium-sized wood factories Since they are often installed in urban commercial and industrial areas and operated by only a few employees, fixing and attaching each pedestal to each processing machine increases the space in the workplace and reduces the cost of high land prices. Undesirable.

Therefore, it is necessary to reduce the number of pedestals as much as possible and adopt a rocket working method, so that one processing machine can process all the required workpieces at once before moving on to the next process. Even in this case, as mentioned above, the height to the top of the bed differs depending on the model, so the pedestal must have a structure that allows the height of the pedestal to be changed to match the height to the top of the bed. become.

To meet this demand, there is a pedestal called an "auxiliary roller" as shown in FIG. 11.

This pedestal has two legs that intersect in an X-shape, and a parallel girder that extends in the feed direction of the workpiece is provided on the top of a pair of legs on the left and right, and is arranged at right angles to the feed direction on the top of the pair of legs. The workpiece can be moved smoothly using a plurality of rollers.

(Problem that the invention aims to solve) To change the height of this type of pedestal, rotate the handle provided on the side of the pedestal, and convert the rotation of the handle to opening and closing of the X-shaped legs. This requires mechanisms such as gears and threaded rods, which increases the price accordingly.

Even with this type of pedestal, the feeding force applied to the workpiece is applied to the pedestal, unless the workpiece is lightweight, so the pedestal must be placed on the floor to prevent it from moving in the feeding direction. It is necessary to fix it to the side plate of the processing machine or other member that can prevent movement.

From this point of view, in small and medium-sized wood factories, mechanical parts such as handles and gears are not required, and the height to the top of the pedestal can be changed arbitrarily according to the height to the top of the processing machine bed. There has been a demand for a cradle that is simple and inexpensive.

(Means for solving the problem) In the present invention, the upper frame for receiving the workpiece is made up of two upper and lower bars placed on the left and right sides of the feed direction, near both the front and rear ends in the feed direction. are connected at each tip to form a total of four legs, front and back, left and right, for support. If the left and right side frames are a single parallelogram or trapezoid, the legs should be straight like a chair, or if the left and right frames are two parallelograms or an isosceles trapezoid, the top When stacked on top of each other, the upper and lower legs are connected at the knee joint, like the legs of an animal.

In the present invention, when using a leg consisting of the upper leg and lower leg, the apex of the dogleg of the front and rear legs, that is, the part corresponding to the knee joint of the front and rear legs, is used as a crossbeam material. Therefore, it has a structure in which the front and back are connected. As a result, the front and rear legs on each side are separated by the intermediate connecting rod, forming two upper and lower parallelograms or isosceles trapezoids. Among these geometrical quadrilaterals, a parallelogram is easily deformed by a change in height without having to change its length in response to forces from above and below. By pulling up or pushing down, the height of the pedestal can be adjusted to match the bed of the processing machine by raising or lowering the overall height with a small amount of force while keeping the upper and lower sides parallel. In the case of an isosceles ladder, the height of the pedestal can be adjusted by changing the length of the middle and shorter upper base of both the upper and lower bases of the isosceles ladder.

However, in this state, when the load of the processed parts is applied, the upper and lower parallelograms or isosceles trapezoids will deform and become flattened, reducing the overall height. By fixing the upper and lower girders on the side closer to the machine to the frame of the woodworking machine and the floor of the workshop, respectively, the upper and lower parallelogram or isosceles trapezoidal frames are firmly fixed and prevented from deforming due to loads. It was designed so that

Bars such as steel, aluminum, and aluminum alloy may be used to construct these frames, but square pipes are preferred from the viewpoint of drilling, assembly costs, and weight. It is also possible to make your own at home.

This invention basically uses two parallelograms stacked one on top of the other, and uses a "dog"-shaped leg with parallel front and rear legs for the oblique leg, but a simplified version of the pedestal is shown in Figures 7 and 8. As in the second embodiment, one leg may be provided on each of the left and right sides, each consisting of a parallelogram made up of one horizontal bar on the top and one on the top and one diagonal bar on the front and back. In this configuration, the side of the upper horizontal girder closest to the woodworking machine is fixed to the machine frame, and the lower horizontal girder moves parallel to the floor surface each time the height changes, so a separate guide rod or guide plate is required. It is necessary to provide a guide plate and fix one end of the guide plate.

When using a frame with a single isosceles trap or two stacked isopods, the height of the pedestal can be changed by using a stacked parallelogram or a single parallelogram. The difference is that it is necessary to expand or contract the length of either the lower base (long side) or the upper base (short side) of the quadrilateral that makes up the ladder. Since this pedestal needs to receive the workpiece, the lower base AB, which is the long side in Figures 10A and B, is used as the upper girder, and in order to use the overlapping method, the long side A'B' is also used as the lower girder. , the length of the upper base CD is changed by using it as an intermediate girder common to both trapezoids.
Rather than changing the length of the upper base girder CD itself, the four hypotenuses AC of the isosceles ladder ABCD and A′B′DC,
The parts corresponding to points C and D of A'C, BD, and B'D are made movable by sliding on the long central girder h shown in
It has been changed to . In this structure, ACA′ and
BDB' solves the height change problem by forming an X-shaped leg in which two "dogleg" legs, each with knee joints at point C and point D, form an X-shaped leg that faces each other.

If the left and right corners of the pedestal are composed of a single trapezoid, it is sufficient to consider the trapezoid ABCD, which is the upper half of Figure 10A, and the upper base CD of the trapezoid forms the lower girder of the pedestal. Become.

The structure is simple whether it is the basic type of two stacked parallelogram legs or isosceles ladder type, or the simple type of single parallelogram or single isosceles ladder type, and the handle, gear, This problem is solved by eliminating the need for mechanical operating members such as threaded parts.

(Embodiment 1) Referring to FIG. 1, a woodworking machine pedestal 1 according to the present invention includes horizontal girders 2, 4, 6 extending in the longitudinal direction, such as a square steel or aluminum tube or a square wooden bar. and,
Two pairs of front and rear legs 8 connected diagonally in a dogleg shape
-8' are bolts 50, 53 and nuts 51, respectively.
and a washer 52 (see FIGS. 4, 5, and 6), and are pivotally connected to each other by a washer 52 (see FIGS. 4, 5, and 6).
Unit frame 1 with ABCD and BCFE stacked on top and bottom
0', 10'' (see Figures 1 and 2) are formed, one set on the left and right sides, a total of two sets, and are connected to each other to form the frame 1.
form 0. One set of unit frames 10' on the left and one on the right,
10'' is the upper surface near both ends and the center of the upper square tube 2, and the horizontal wooden square beam 12 is connected to the bolt 54, nut 51, and washer 52 (see Fig. 4) and the lower square tube 2. A horizontal wooden block 14 on the lower surface near both front and rear ends of the bolt 55, a nut 51 and a washer 5
2 (see Figure 6). 2 upper girders at 3 places at the top of each unit frame 10', 10''
Upper plates 16 are fixed in parallel in the longitudinal direction of the pedestal 1 in close contact with each other with nails on the square timbers 12 disposed orthogonally to the pedestal 1 to form a horizontal and long rectangular plane. Also, Figure 1,
Referring to FIGS. 2 and 4, an iron or aluminum square tube or wooden square rod 18 is attached to a bolt 56, a nut 51, and a washer 52 (or nail) on the lower surface of the left end of the square tube 2 serving as an upper girder. thus installed in the transverse direction,
At least two along the longitudinal centerline of the square tube 18
A through hole 20 is provided horizontally in the longitudinal direction of the pedestal 1 at a location, and a bolt 57 is passed through this hole 20 and the nut 5 is inserted.
8. It can be detachably attached to a woodworking machine using a washer 59 using a drill hole provided in the main body 22 of the woodworking machine. On the other hand, on the side closer to the woodworking machine of the square timber 14 fixed across the square pipe (or square wooden bar) 6 serving as the lower girder, there are anchor bolt mounting holes 23 in the vertical direction near both ends (see Fig. 2). ) is provided. In this way, the upper girder 2 is connected to the bolt 57.
The lower girder 6 is fixed to the floor surface 24 by anchor bolts or the like through the mounting holes 23 on the front side of the bed of the woodworking machine.

To explain in more detail, with reference to FIG. 4, a counterbore hole 2 is provided concentrically with the vertical through hole 26 of the square tube 2 at the position where the upper square beam 12 is connected to the square tube 2 which is the upper girder.
8. A through hole 30 is drilled to prevent the head of the bolt 54 from protruding above the upper surface of the square piece 12. Similarly, referring to FIG. 6, a counterbore hole 34 and a through hole 32 are drilled concentrically with the vertical through hole 32 of the square tube 6 at the position where the square beam 14 is connected to the square tube serving as the lower girder, and a bolt 55 is provided. The head of the square timber 14 is prevented from protruding below the lower surface of the square timber 14. Also, referring to FIG. 4, the front end (left end in the figure) of the upper plate 16 and the left side of the square tube 18 that is in contact with the bottom thereof are in contact with the right end side of the woodworking machine main body 22, and the left end of the square tube 2 is in contact with the right side of the woodworking machine main body 22. Install it so that there is some gap between it and the above surface. Top plate 1
6 can also be a thick metal plate made of aluminum, stainless steel, steel, etc.

(Example 2) As the basic structure of the present invention, in Example 1, the unit frames 10' and 10'' are two parallelograms ABCD.
Although the case where the BCFE is stacked one on top of the other has been described, a second embodiment in which the pair of frames uses a single parallelogram will be described below with reference to FIGS. 7 and 8. do.

Identical parts are designated by the same numbers, and similar parts are designated by the suffix "a". In this example, unit frame 10
Since it is a single parallelogram, it is necessary to adjust it by moving the square tube 6a serving as the lower beam back and forth in the longitudinal direction (left and right in the figure) according to the height of the bed of the woodworking machine. For this purpose, as shown in FIG. 8, a guide device 70 including a clamp 72, a circular pipe or wooden square piece 75, a washer 76 made of a rectangular iron plate, etc. is provided. When the receiving plate 1a is moved up and down in FIG. 7, the square tube 6a as a lower beam moves parallel to the floor surface 24 back and forth in the feeding direction (left and right in FIG. 7) due to the parallelogram link action. Therefore, as shown in FIG. 8, the clamp 72 moves back and forth along the steel pipe (or wooden block) 75 of the guide device 70.
When the bolt 61 is tightened, the clamp 72 grips and fixes the steel pipe 75 by friction. In this way, the receiving plate 1a
The height can be adjusted to match the bed surface of the woodworking machine main body 22.

(Example 3) Fig. 9 shows a method using parallelograms as in Examples 1 and 2, but the crossbeam 2 is constructed with a strong frame 2, and the crossbeam 2 is constructed with a strong frame 2, and the side that contacts the bed of the woodworking machine is penetrated. hole 20
are fastened with bolts. In this method, the side fastened to the woodworking machine is firmly held, so the center part of the horizontal crosspiece of the frame 2 is supported by the upper end of one "dogleg" leg 8, and the lower end 8b of the leg is supported. It is attached to the floor via a timber 8c, and the front end of the frame 2, that is, the side away from the woodworking machine, is supported on the floor by a support plate 8'c using two sets of doglegs 8'. . 16 is an upper plate, and 4' is a horizontal beam that connects only one joint 8f of the dogleg-shaped rear leg 8 to the center of the middle beam 8g that connects the two joints 8f of the front legs. Other connecting fittings such as bolts are almost the same as in the first embodiment, so their explanation will be omitted.

(Example 4) Fig. 10c differs from Examples 1 to 3 above in that it uses a method in which two isosceles ladders are stacked on top of each other. bottom
Two isosceles ladder shapes ABCD in which AB and A′B′ are superimposed with upper crossbeam 2 and lower crossbeam 6 respectively.
The upper base CD common to A'B'C'D' is configured as a central crossbeam 4, and this crossbeam 4 is a dogleg-shaped rear leg.
Similar to ACA' (i.e. 8-8), the joint points C and D of front leg BDB' (i.e. 8''-8'') are connected to form a crossbeam 4.

In this embodiment, the upper half of the front leg 8'', that is, the upper end of the BD, is slidably mounted in a long hole 101 horizontally bored in the upper crossbeam 2 by a pin 102, and the lower half of the front leg 8'', That is, DB' is slidably mounted in the elongated hole 101' by a pin 102'.

On the other hand, the central crossbeam 4 can be fixed by adjusting the length of the common upper base CD by fixing it with through bolts or the like through a plurality of short holes 103 opened at appropriate intervals.

Therefore, the upper and lower legs of the front leg 8'', that is, the hypotenuse of the trapezoid
By sliding the tips B and B' of BD and B'D along the elongated holes 101 and 101', respectively, by sliding the pins 102 and 102', the lower bases of two overlapping isosceles ladders are formed. By changing the lengths of AB and A′B′, the overall height, or the height of the pedestal, can be adjusted to match the height of the bed of the woodworking machine.

The length of the central crossbeam 4, that is, the common upper base CD of the two isosceles ladders, is determined by selecting and fixing a short hole at a desired position among the plurality of short holes drilled in the central crossbeam 4. It is possible to adjust it step by step.
1' and the stepless adjustment by the pin 102', the height of the pedestal can be changed over a fairly wide range. This long hole 101, 101'
If the front leg 8'' is changed to the rightmost position 8 in the figure in FIG.

(Example 5) Although not shown in the drawings, if a long hole is provided in the central crossbeam 4 instead of opening the long holes 101 and 101' in the crossbeams 2 and 6, respectively, in FIG. The length of the common upper base CD of the superimposed isosceles ladder is
The stepless change makes it possible to adjust the height of the pedestal.

(Effects of the invention) The pedestal according to the invention has the above-mentioned structure, and the height can be freely changed by the link action due to the function of a parallelogram or isosceles trapezoid at the top and bottom.
If you easily match the height of the bed of various woodworking machines and drill mounting holes in the main body of the woodworking machine, you can easily attach bolts,
It is attached with nuts 57 and 58, and by fixing the left square timber 14 to the workshop floor with an anchor bolt, the entire pedestal 1 is firmly fixed by the link action. It is also extremely easy to remove.

On the other hand, the materials used are commercially available metal square tubes or wooden squares that are simply cut and drilled, and no complicated machining is required.The structure is simple and can be assembled using commercially available bolts and nut washers. Because it can be done, the cost is extremely low. Although the second embodiment requires a guide member, fewer members are required for the frame of a single parallelogram or isosceles trapezoidal structure.

[Brief explanation of the drawing]

1 is a side elevational view of a first embodiment of the woodworking machine cradle according to the present invention, FIG. 2 is a front elevational view of FIG. 1, FIG. 3 is a top plan view of FIG. 1, and FIG. The figure is the first
FIG. 5 is an enlarged partial view of FIG. 1, FIG. 6 is an enlarged partial cross-sectional view of FIG. 1,
Fig. 7 is a side view of a second embodiment of the woodworking machine pedestal according to the present invention, Fig. 8 is an enlarged view taken from Fig. 7 in the direction of arrows, and Fig. 9 is a perspective view of the third embodiment of the present invention. Figures 10A and 10B are geometric explanatory diagrams for height adjustment using an isosceles trapezoidal method, and Figure 10C is a side view showing a fourth embodiment of the present invention. FIG. 11 is a side view of an X-shaped leg according to the prior art. Explanation of symbols, 1, 1a: Receiver plate, 2, 4, 6, 6
a: digit, 8, 8', 8'', 8: dogleg, 8a:
Square pipe or wooden square, 8b: Lower end of leg, 8c, 8
c': Receiving material, 8f: Hind leg joint, 8g: Middle girder, 8
m: Center part of middle girder, 10, 10a: Frame, 12, 1
4, 14a: Square timber, 16: Upper plate, 18: Square tube, 2
0: Through hole, 22: Woodworking machine body, 23, 23
a: Mounting hole, 24: Floor surface, 26: Through hole, 28:
Counterbore hole, 30, 32: Through hole, 34, 34a:
Counterbore hole, 36, 36a: Through hole, 50: Bolt, 51: Nut, 52: Washer, 53, 54, 5
6, 57: bolt, 58: nut, 59: washer,
60, 61, 62: Bolt, 70: Guide installation,
71: square tube, 72: clamp, 73: clamp body, 74: flange, 75: steel pipe, 76: washer,
101, 101': long hole, 102, 102': pin, 103: short hole.

Claims (1)

[Claims for Utility Model Registration] (1) A cradle connected to a woodworking machine for receiving a workpiece, etc., is provided on both the left and right sides of the woodworking machine in the feed direction, and extends in the feed direction to support the workpiece. a pair of lower girders extending parallel to the upper girder and close to the floor surface and supporting the load of the workpiece by the floor surface;
At least one pair of front legs extending diagonally from above to below by connecting the upper and lower connecting points of the upper and lower girders at their front ends nearer and further away from the woodworking machine, respectively. and at least one rear leg, the distance between the connecting points of each of the upper and lower girders is equal, and the front leg and the rear leg are the same in shape and size. a pair of unit frames forming at least one set of parallelograms or isosceles trapezoids with the upper and lower girders; and a transverse girder connecting the upper and lower girders of the pair of unit frames in a transverse direction; a frame body which is integrally connected; a fixing member which connects and fixes the upper frame of the pair of frames to a part of the bed near the delivery end of the woodworking machine and the lower frame to the floor of the workshop; and the frame. a top plate that spans over a pair of left and right girders to receive the workpiece; and, before being connected to a woodworking machine, the frame may be connected by the features of a parallelogram or isosceles trapezoid. The height of the top plate surface can be easily adjusted and connected according to the height of the bed of various woodworking machines.
A workpiece connected to a woodworking machine, characterized in that, after being connected to the woodworking machine and fixed at a predetermined position on the floor, the workpiece is erected with sufficient strength to support the workpiece. A pedestal for parts. (2) In the cradle described in claim 1 of the utility model registration claim, each of the front legs and the hind legs constituting the unit frame of the frame body has an upper leg and a lower leg that are bent at one joint point. The joint points of the front legs and the rear legs are further connected by an intermediate spar, and the rear legs of the front legs are parallel to each other with the intermediate spar as a common horizontal side, A pedestal for a workpiece connected to a woodworking machine, characterized in that the upper and lower girders constitute a unit frame in which two parallelograms are juxtaposed vertically. (3) In the pedestal according to claim 1 of the utility model registration claim, each of the rear legs of the front legs of the unit frame is configured as a single linear diagonal leg, and the lower girder is arranged along a guide device. A pedestal for a workpiece connected to a woodworking machine, characterized in that it is movable back and forth for height adjustment and is removably fixed to the guide device after the adjustment is completed. (4) In the cradle described in claim 1 of the utility model registration claim, each of the front legs and the rear legs constituting the unit frame of the frame body has an upper leg and a lower leg that are interchangeable in front and back at one joint point. The joint points of the front legs and hind legs are further connected by an intermediate spar, and two isosceles trapezoids are formed with this middle spar as a common upper base. A pedestal for a workpiece connected to a woodworking machine, characterized in that it forms unit frames arranged vertically in parallel.