JP2922773B2 - Raising equipment for the tabletop of the digger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for raising and lowering a sitting table up and down manually to make it in a use state or a non-use state.

[0002]

2. Description of the Related Art Since a digging trowel becomes an obstacle when not in use, a seat table can be stored in a digging trowel body under the floor. In the case of manually moving the table in and out, lift the table and take out the table from inside the rigging body, rotate the table 90 ° in the circumferential direction and place it on the bottom of the table The table is put into use, and the table is lifted, the table is rotated 90 ° in the circumferential direction, the table is lowered, and the table is stored in the digging main body to make it not in use. . In addition, a table that is electrically driven in and out is driven up and down by driving an elevating mechanism by a motor or the like to move the table in and out.

[0003]

However, in the case where the table is manually put in and taken out like the former of the above-mentioned conventional example,
There is a problem in that it is necessary to lift and operate the entire heavy table, which requires labor.In addition, the structure in which the table is electrically driven in and out as in the latter case of the conventional example described above has a complicated structure. There is a problem that costs increase.

Japanese Patent Application Laid-Open No. 60-60 / 1985 discloses a technique for reducing the labor required for manually raising and lowering a sitting table.
No. 427 discloses this. This is urged by a spring so that the table protrudes upward, and can be held at an appropriate height by a lock mechanism.When the table is raised, the lock is released and the spring force is applied. When the table is raised and the table is lowered, the lock is released and the table is lowered against the force of the spring. However, in the above conventional example, when raising the table, it is possible to operate without requiring labor, but when lowering the table, it has to be pressed against a spring and requires labor for operation. There is a problem that the operation must be released and the seat table must be pushed down, which complicates the operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to raise and lower a sitting table with a simple operation and without labor. To provide.

[0006]

In order to achieve the above object, the present invention relates to an apparatus for raising and lowering a round table of a digging rug, in which a round table 2 is arranged on a rigging body 1 so as to be able to move up and down. The movable base 4 is connected by an X-shaped link body 5 and an elevating mechanism A that enables the movable base 4 to move up and down is arranged on a side portion inside the digging body 1, and the movable base 4 is moved upward. A spring 6 for urging the ascending mechanism is attached to the elevating mechanism A,
A table receiver 7 arranged at a corner in the rigging body 1 is attached to the movable base 4, and the lower ends of the legs 9 of the table body 8 of the table 2 are placed on the table receiver 7, 2 top plate 10 to table body 8
The table 2 is lowered into the digging main body 1 against the spring 6 and the table 10 is kept away from the table main body 8 while the table 2 is placed on the digging main body 1. It is characterized in that the spring force of the spring 6 is set so as to ascend upward, and a stopper mechanism for stopping the seat table receiver 7 so as to prevent the seat table 2 from lowering when the seat table 2 is raised is provided. .

[0007]

According to the above construction, if the top plate 10 is avoided from the table main body 8 with the stopper of the table receiver 7 removed,
The table 2 is raised by the force of the spring 6 to be in use,
When the tabletop 10 is placed on the table main body 8, the table 2 is lowered against the force of the spring 6, and the table 2 is stored in the digging main body 1, and becomes non-use state. Thus, top plate 1
The operation of raising and lowering the seat table 2 can be performed with a simple operation of merely placing the zero and avoiding the top plate 10 without requiring any labor. Further, in the use state in which the table 2 is raised, the table 2 is stopped by the stopper mechanism so that the table support 7 is not lowered, so that the table 2 can be held in the used state even when the top plate 10 is placed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, a digging trowel main body 1 is a furnace box and is formed in a square box shape having an open upper surface, and is attached below an opening 12 provided on a floor 11. ing. A frame 13 is attached along the inner periphery of the opening 12 at the upper end of the rigging body 1, and a footrest 14 is provided at the bottom of the rigging body 1 so as to float on the bottom plate.
Elevating mechanisms A are provided at both ends in the longitudinal direction of the rig main body 1, and the table receivers 7 arranged at the four corners of the rig main body 1 can be moved up and down by the elevating mechanisms A. It has become. The lifting mechanism A is an outer plate 1 of the
It is housed in the space between 5 and the inner plate 16. The lifting mechanism A housed at both ends in the longitudinal direction in the digging body 1 has the same structure, but the lifting mechanism A on the left side when viewed from the front is as shown in FIGS. 8 to 11, and the left and right lifting mechanisms A have a plane-symmetrical shape.

The elevating mechanism A is mainly composed of a horizontal fixed base 3, a movable base 4 which can be moved up and down horizontally, and an X-shaped link 5 between the fixed base 3 and the movable base 4. The fixed base 3 is fixed to the bottom plate of the digging body 1, and side frames 17 are erected on both ends of the fixed base 3. An upper frame 18 is integrally provided between the upper ends of the side frames 17 at both ends, and the upper frame 18 is fixed to the dugout main body 1. The movable base 4 is erected between the side frames 17 so as to be able to move up and down.
Is mounted so as to freely roll up and down with respect to the guide rail 20. The X-shaped link body 5 is formed by a pair of links 5a and 5b, and the centers of the pair of links 5a and 5b are rotatably connected by a shaft 21. The lower end of the link 5a is rotatably connected to one end of the fixed base 3 by a shaft 22, and a guide roller 23 provided at the upper end of the link 5a is rotatably mounted on a guide rail 24 of the movable base 4. It is. An upper end of the link 5b is rotatably connected to one end of the movable base 4 by a shaft 25, and a guide roller 26 provided at a lower end of the link 5b is rotatably mounted on a guide rail 27 of the fixed base 3. It is. The shafts 22 of the left and right elevating mechanisms A are connected by an interlocking shaft 28, so that the left and right elevating mechanisms A are interlocked. Also link 5a
A spring mounting plate 30 is provided integrally, and a stretchable spring 6 is provided between the spring mounting plate 30 and the fixed base 3. In the case of this embodiment,
The spring 6 is formed by a gas spring 6a. The spring 6 has a spring force so as to extend, and is urged to move the movable base 4 upward. The spring mounting plate 30 is provided with a plurality of mounting holes 31 above and below, and by changing the mounting hole 31 for mounting the upper end of the spring 6, the force by which the movable base 4 moves up can be changed. Attachment fittings 32 are attached to both ends of the movable base 4. The attachment fittings 32 are inserted into slits provided in the up-down direction on the inner plate 16 so as to protrude into the digging body 1. The table receivers 7 at the four corners are respectively attached to the mounting brackets 32, and the table receivers 7 move up and down by moving the movable base 4 up and down.

The seat table 2 is vertically movable up and down so as to be able to be taken in and out of the rigging main body 1, and is composed of a top plate 10 and a seat table main body 8. The table body 8 is 4
The upper frame 33 is formed of the corner legs 9 and the upper frame 33 so that the top plate 10 can be mounted on the upper frame 33 in a detachable manner. The lower table 2 is provided with a lower table support 7 on the lower end of the leg 9 of the lower table body 8.
And is installed with respect to the digging trowel main body 1. The spring force of the spring 6 is the top plate 1 of the sitting table 2.
When the load is applied only to the table body 8 while avoiding zero, the movable base 4 is raised, and when the table 10 is placed on the table body 8 and the combined load of the table body 8 and the table 10 is applied. Is set so that the movable base 4 is lowered in response to the load. As shown in FIG. 12, a stopper receiving bar 35 is attached to an inner surface of the rigging body 1 parallel to the longitudinal direction, and a stopper receiving bar 35 is provided between the opposing stopper receiving bars 35 as shown in FIG. A stopper bar 36 is erected so as to be orthogonal to. This stopper bar 3
6 is slidable in the longitudinal direction of the stopper receiving bar 35 by placing both ends on the stopper receiving bar 35. By positioning the stopper bar 36 below the table support 7 with the table support 7 raised, the table support 7 is stopped from lowering.

[0011] As described above, the lifting device of the sitting table is constructed and used as follows. When the table 2 is lowered to change from the non-use state in which the table 2 is stored in the digging main body 1 to the use state, the top plate 10 is removed from the table body 8. Then, the movable base 4 is moved up together with the table receiver 7 by the spring force of the spring 6, and the table main body 8 is in a use state. In this state, the stopper bar 36 is slid so that the stopper bar 36 is positioned below
Is not lowered, and the tabletop 10 is placed on the table body 8. When the storage table is to be stored from the use state to the non-use state, the stopper bar 36 is slid in a state in which the top plate 10 is avoided, and the stopper bar 36 is lowered from below the seat table receiver 7 to descend. Then, the table 10 is placed on the table body 8. Then, the combined load of the table body 8 and the top plate 10 overcomes the spring force of the spring 6, the movable base 4 and the table receiver 7 descend together, and the table 2 is stored in the digging body 1. And becomes non-use state.

FIG. 13 shows another embodiment of a stopper mechanism for stopping the table receiver 7 from lowering when the table 2 is in use. A stopper bar 37 is arranged between the table receivers 7 at the two corners.
Are provided at both ends with insertion bar portions 38 orthogonal to the longitudinal direction of the stopper bar 37. The insertion rod portion 38 is slidably inserted into an insertion hole 39 that is formed so as to penetrate the seat table receiver 7, and is inserted into the frame 13 of the digging main body 1 with the seat table receiver 7 raised. An insertion recess 40 is formed at a position corresponding to the hole 39. However, by sliding the stopper bar 37 with the seat table 2 raised to fit the insertion rod portion 38 into the insertion recess 40, the seat table receiver 7 can be stopped from lowering. I have.

FIG. 14 shows another embodiment of a stopper mechanism for stopping the table receiver 7 from lowering when the table 2 is in use. Insert holes 42 in each table receiver 7
The table 2 is raised, and the table 2 is raised.
By inserting the insertion hole 42 into the insertion recess 40 of the frame 13 of the digging body 1 and inserting the insertion pin 43 from the insertion hole 42 into the insertion recess 40, the seat table receiver 7 is prevented from descending. It can be stopped.

FIG. 15 shows another embodiment of a stopper mechanism for stopping the table 2 from lowering when the table 2 is in use. A pair of slide pins 45 are inserted into the frame 13 so as to be slidable in the longitudinal direction of the frame 13, and the slide pins 45 slide so that the tips of the slide pins 45 can be protruded and retracted. The table receiver 7 is provided with an insertion recess 46 into which the tip of the slide pin 45 is fitted when the table receiver 7 is raised.
A rack 48 is provided on the base end side of the pair of slide pins 45, and a pinion 50 is interposed between the pair of racks 48 so that the pinion 50 meshes with the rack 48. Then, by rotating the pinion 50, the slide pin 45 is slid, and the tip of the slide pin 45 is fitted into the insertion recess 46 of the table receiver 7, so that the table receiver 7 can be stopped from lowering. It has become.

[0015]

As described above, according to the present invention, a table is arranged on a rigging body in such a manner that it can be moved up and down, and a movable base is connected to a fixed base by an X-shaped link. An elevating mechanism that can move up and down freely is arranged on the side of the digging body, and a spring that urges the movable base to rise upward is attached to the elevating mechanism, and at the corner of the digging body, Attach the placed table support to the movable base, place the lower ends of the legs of the table base of the table on the table support, and place the tabletop on the table base with the table top placed on the table base. Because the spring force of the spring is set so that the table table body rises above the digger body with the top plate descending into the digger body against the spring and avoiding the top plate from the table body If the table is avoided from the table body, the table will be raised by the force of the spring and will be in use. When the table is placed on the table body, the table lowers against the force of the spring, and the table is stored in the digging body and is not used. It is a simple operation that avoids the board and does not require labor, and it can be operated to raise and lower the table, and it can be simplified in structure because it does not operate with electric power as in the past. A stopper mechanism is provided to stop the seat table holder so that the seat table does not lower when the seat table is raised, so it can be securely supported so that the seat table does not lower when the seat table is in use. It is.

In the invention according to claim 2 of the present invention, a stopper receiving bar is mounted along opposing inner surfaces of the digging trowel main body, and a stopper receiving bar is provided between the opposing stopper receiving bars. The stopper bar is erected so as to be orthogonal, and the stopper bar is slidable with respect to the stopper receiving bar.When the table is raised, the stopper bar is positioned below the table receiver, and the seat is received by the stopper bar. Since the stopper is stopped, the pair of table receivers can be simultaneously stopped by a simple operation of sliding the stopper bar.

In the invention according to claim 3 of the present invention, a stopper bar is disposed between adjacent table receivers, and insertion bar portions at both ends of the stopper bar are slidably penetrated into the table receiver. Since the stopper mechanism is configured so that the insertion rod part is fitted into the insertion recess of the frame around the digging garbage body with the sitting table raised,
With a simple operation of sliding the stopper bar, the pair of table receivers can be stopped at the same time.

Further, in the invention according to claim 4 of the present invention, the insertion hole of the table receiver is made to correspond to the insertion recess of the frame around the main body of the digging ottoman with the table raised.
Since the stopper mechanism is configured so that the insertion pin is inserted into the insertion recess from the insertion hole, the seat table can be easily stopped simply by inserting the insertion pin.

Still further, in the invention according to claim 5 of the present invention, a slide pin and a recess for receiving a seat table slidably inserted into a frame around the rigging body with the seat table raised. The stopper mechanism is configured to slide the slide pin with the pinion and the rack, insert the slide pin and insert it into the recess, so that the slide pin is slid by rotating the pinion It is easy to stop the sitting table.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing one embodiment of the present invention.

FIG. 2 is a plan sectional view of the same.

FIG. 3 is a front sectional view of the same.

FIG. 4 is a partially cutaway plan view showing one elevating mechanism of the above.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a rear view of FIG. 4;

FIG. 7 is an end view of FIG. 4;

FIG. 8 is a partially cutaway plan view showing the other elevating mechanism of the above.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a rear view of FIG. 8;

FIG. 11 is an end view of FIG. 8;

12A and 12B show the same stopper mechanism, wherein FIG. 12A is a perspective view of a main part, and FIG. 12B is a sectional view of the main part.

FIG. 13 shows another embodiment of the stopper mechanism of the above,
(A) is a perspective view of a main part, and (b) is a cross-sectional view of the main part.

FIG. 14 is a sectional view of another embodiment of the same stopper mechanism.

FIG. 15 is a sectional view of still another embodiment of the same stopper mechanism.

[Description of Signs] A Elevating mechanism 1 Rugged goat body 2 Round table 3 Fixed base 4 Movable base 5 Link body 6 Spring 7 Round table receiver 8 Round table body 9 Leg 10 Top plate

Claims (5)

(57) [Claims] 1. A lifting / lowering system in which a sitting table is vertically movable on a rigging body, and a movable base is connected to a fixed base by an X-shaped link so that the movable base is vertically movable. The mechanism is arranged on the side of the rigging body, a spring that urges the movable base to rise upward is attached to the lifting mechanism, and the table receiver placed at the corner inside the rigging body is Attached to the movable base, the lower ends of the legs of the table table are placed on the table receiver, and the table is dug against the spring with the table top placed on the table body. Set the spring force of the spring so that the table table body rises above the digging body while lowering into the body and avoiding the tabletop from the table body. Characterized in that it is provided with a stopper mechanism for stopping a table receiving member so that the table does not descend. Table lift equipment. 2. A stopper bar is mounted along opposing inner surfaces of the digging trowel main body, and a stopper bar is erected between the opposing stopper bar so as to be orthogonal to the stopper bar, and the stopper bar is connected to the stopper bar. The stopper mechanism is configured to be slidable with respect to the stopper receiving bar, to position the stopper bar below the table receiver with the seat table raised, and to stop the table receiver at the stopper bar, thereby forming a stopper mechanism. The elevator device for a sitting table of a digging trowel according to claim 1, wherein: 3. A stopper bar is disposed between adjacent table receivers, and insertion rods at both ends of the stopper bar are slidably penetrated into the table receiver, and the insertion rod is dug when the table is raised. 2. The elevator device for a table of a trowel according to claim 1, wherein a stopper mechanism is configured to be fitted into an insertion recess of a frame on a peripheral edge of the tongue main body. 4. The insertion hole of the table receiver is made to correspond to the insertion recess of the frame around the digging trowel main body with the seat table raised, and the insertion pin is inserted from the insertion hole into the insertion recess. The elevator device for a squatting table according to claim 1, wherein the stopper mechanism is configured as follows. 5. A slide pin slidably inserted in a frame around a digging-got-tatsu body with a sitting table raised, and an insertion recess of a sitting table receiver corresponding to the sliding pin, and the sliding pin is slid by a pinion and a rack. 2. The lift device for a table as claimed in claim 1, wherein a stopper mechanism is configured to insert the slide pin into the recess.