JP2969455B2 - Architectural column driver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving tool for a building used for driving a column into a base or driving a girder into a column at a construction work site.

[0002]

2. Description of the Related Art When a pillar is driven into a base or a girder is driven into a pillar, for example,
The shot was done using a quiver, but this work was always dangerous because of the work at high altitudes.

The inventor of the present invention has already locked the lower surface of the locking body on the top of the column, lifts the driving weight upward with the rod body hanging down, drops the driving weight, and contacts the stopper with the driving weight. Developed an architectural pillar driver that can drive a pillar even when the worker is under it by the weight and impact force of the weight.
No. has obtained a patent.

The present inventor has further studied this device, and when the driving weight is lifted upward and brought into contact with the stopper, a severe impact is applied to each part of the body. The inventor noted that hair cracks that could not be seen were generated, and the hair cracks might grow during the work and cause unexpected breakage.

The inventor can discover the unexpected breakage in advance, and fix the cap body and the lower holder body to the upper and lower rods of the stopper and the stopper with upper and lower through pins. A construction that solves the above drawbacks by connecting the upper and lower through-pins with a tether rope so that parts such as locking bodies, driving weights and stoppers do not fly outside and cause an accident when an accident occurs A pillar driving tool is provided.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

A locking member 4 for locking to the top of the column a is fixed to an upper portion of the column a slightly shorter than the column a to be driven by an upper bar pin 5, and a stopper member 6 is fixed to a lower bar near the lower portion. The rod 1 fixed between the locking member 4 and the stopper 6 with the pin 7
Column driving tool A with driving weight 11 slidably fitted on
A cap body 2 is fastened to the upper end of the rod body above the locking body 4 with a predetermined gap L ₁ at the upper through pin 3, and the cap body 2 is fixed to the lower end of the rod body below the stopper body 6. those of the building pillars driving tool unit, characterized in that the fastening of the lower holder body 8 at lower through pin 9 with a gap L _2.

[0008] Further, according to the present invention, the upper penetration pin 3 and the lower penetration pin 9 are connected by a tether rope 10.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings, which are examples of embodiments, showing the functions and effects.

An embodiment of the present invention will be described.

The lower surface of the locking body 4 is locked to the top of the column a, and the driving weight 11 is lifted up and dropped while the rod body 1 is hung down to contact the stopper body 6. The rod 1 is lowered by the weight of the weight 11 and the impact force, and the column a is driven into the base. By repeating this operation, the column a is driven into the base and locked.

In the case of a girder b as shown in FIG. 2, the locking body 4 is locked on the upper surface of the girder b and the same operation as described above is performed. I do.

As described above, each time the driving weight 11 comes into contact with the stopper body 6, the lower bar pin 7 fixed to the stopper body 6 operates on the rod body 1 by the force of the weight of the driving weight 11 and the impact force. The rod 1 is lowered, and the upper bar pin 5 fixed to the rod 1 is actuated by the locking member 4 to drive the column a into the base, whereby both ends are fixed and supported by the stopper 6. A strong shearing force and bending moment act on the lower bar pin 7, and the lower surface of the lower bar pin 7, which is fixed to the bar 1, and the bar 1.
A strong contact pressure acts on the lower surface of the pin hole. Similarly, a strong shearing force and a bending moment act on the upper bar pin 5 whose both ends are fixed and supported by the locking body 4, and the upper surface of the upper bar pin 5 fixed to the rod body 1 and the pin of the rod body 1 are fitted. Since a strong contact pressure is applied to the upper surface of the hole and a strong tensile force is applied to the rod body 1, if the operation of driving the column a is repeated for a long time and continued, the metal fatigue due to the strong repetitive shearing force causes the rod to become visible. Hair cracks occur, permanent bending deformation occurs due to metal fatigue due to repeated bending moment, contact surface is crushed due to metal fatigue due to repeated contact pressure, and rod body 1 becomes permanent due to metal fatigue due to repeated tensile force. Cause elongation deformation,
Since the predetermined distance L ₂ is becomes smaller that Kaison between the cap member 2 by a predetermined distance and Kaison between securing body 4 L ₁ and the stopper member 6 and the lower holder 8, the operator this predetermined distance at all times during operation Note the L ₁ and L _2, Wakashi because the predetermined interval can predict that soon break begins Once the smaller, continue with the safe working immediately replaced with a new the building pillars driving tool device to stop the work I do. Further, the cap body 2 is fixed above the locking body 4 and the lower holder body 8 is fixed below the stopper body 6 with the upper and lower through-pins 3 and 9. Since the weight of the weight 11 and the force due to the impact force are not applied, even if the upper bar pin 5 or the lower bar pin 7 is cut off, the locking body 4, the driving weight 11, and the stopper body 6 fall out of the rod body 1 and fly outside. It is safe because no accidents occur.

A second embodiment will be described.

The rope 10 connects the upper penetrating pin 3 and the lower penetrating pin 9 to which the weight of the driving weight 11 and the impact force do not exert any force.
So that even if the upper bar pin 5 or the lower bar pin 7 is cut off, the cap body 2 and the lower holder body 8 at the upper and lower ends of the rod 1 are cut.
Are connected by the tying rope 10 so that the locking body 4 and the driving weight 11
Since the stopper body 6 does not come off from the rod body 1 and fly outside to cause an accident, the safety is further enhanced.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings illustrate one preferred embodiment of the present invention.

An embodiment according to claim 1 will be described.

A locking member 4 for locking to the top of the column a is fixed to an upper portion of the bar 1 slightly shorter than the column a to be driven by an upper bar pin 5, and a stopper member 6 is fixed to a lower bar near the lower portion. The rod 1 fixed between the locking member 4 and the stopper 6 with the pin 7
Column driving tool A with driving weight 11 slidably fitted on
A cap body 2 is fastened to the upper end of the rod body above the locking body 4 with a predetermined gap L ₁ at the upper through pin 3, and the cap body 2 is fixed to the lower end of the rod body below the stopper body 6. to fastened the lower holder body 8 at lower through pin 9 with a gap L _2.

The illustrated rod 1 employs a hollow iron pipe in the shape of a long rod, and has an engaging hole at the upper end of the rod 1 for engaging with the outer diameter of the rod 1, and has a ceiling-shaped closed cap. And the cap 2 is fastened to the rod 1 with the upper through pin 3. An elongated octagonal base 4 'is provided on the rod body 1 below the cap body 2 when viewed from above, and the driving tool is locked to the left and right ends of the base with pillars a and cross beams b. A driving claw 4 ″ for maintaining the rod body 1 in a hanging state is vertically provided, and a cylindrical boss body is erected above a central portion of the base plate 4 ′ to form a locking body 4.
The locking body 4 is fixed to the bar ₁ with an upper bar pin 7 with a predetermined gap L1 interposed at the lower end surface of the cap body 2. Reference numeral 15 in the drawing denotes a concealing plate for concealing both ends of the upper bar pin 7.

A stopper 6 is provided at the lower end of the rod 1 and the stopper 6 is fixed to the rod 1 with a lower bar pin 7. A groove 6 ′ is formed in the peripheral surface of the stopper 6 near the lower end. Then, the base of a synthetic resin indicating cylinder 16 is fitted in the groove 6 'and the other end is extended downward. A lower holder 8 is provided below the stopper 6 near the lower end of the rod. the lower holder body 8 by tightening Sonse through a predetermined gap L ₂ on the lower end surface of the stopper member 6 is fixed to the rod body 1 at the bottom through pins 9. In the illustrated embodiment, the outer peripheral surface of the lower holder body 8 near the upper portion is formed into an outer diameter shape in which the inner diameter of the pointing cylinder 16 can slide up and down, and a large-diameter step 17 is provided below the lower holder body 8. the gap between the upper end surface of the extension設下end face of the instruction cylinder 16 and the large diameter portion is formed to have the predetermined gap L _2, a predetermined gap L ₂ between the stopper member 6 and the lower holder body 8 A gap between the lower end surface of the indicating cylinder 16 and the upper end surface of the large-diameter step 17 is provided so that it can be visually observed from the outside, and the cylindrical surface of the indicating cylinder 16 covers both ends of the lower through pin 9. A groove 8 'is provided on the peripheral surface of the lower end portion of the lower holder body 8, and the base of the handle 18 made of synthetic resin is fixed to the groove 8', and the other end is a rod 1 The bar 1 is easy to hold when the driving claw 4 ″ of the locking body 4 is locked to the top surface of the pillar a. Forming manner, the Dakomitsumu 11 continuously provided a grip portion 11 'for slidably be fitted in the rod 1 between the locking body 4 stopper member 6.

In the embodiment, the upper surface of the gripped hand comes into contact with the upper portion of the grip portion 11 ', and when the driving weight 11 is lifted upward, the hand slips and the driving weight 11 is dropped by mistake. Is provided and a locking flange 11 ″ is provided to assuredly lift the driving weight 11. The numeral 14 is an upper stopper.

A second embodiment will be described.

An upper penetrating pin 3 and a lower penetrating pin 9 are connected to a pipe-shaped rod 1 by a tether rope 10.

[0024]

According to the present invention as described above, according to the first aspect of the present invention, the locking member is locked on the top surface of the column, the rod is suspended, and the driving weight is lifted upward. It can be dropped and brought into contact with the stopper body, the rod is lowered by the weight and impact force of the driving weight, the column is driven into the base, and this operation is repeated so that the column can be driven into the base and locked.
The pillar can be driven even when the worker is below, making it a very safe and convenient pillar driving tool for construction.

If the driving operation of lifting the driving weight upward and abutting against the stopper is repeated for a long time and continued, the repeated impact force causes a strong shearing force, bending moment, contact surface pressure and strong tensile force on the body. Causes cracks and distortions due to metal fatigue in the body, and as a result, the predetermined gaps provided between the locking body and the cap body and between the stopper body and the lower holder body become small. Always pay attention to this predetermined gap, and if the predetermined gap becomes small, it can be predicted in advance that breakage will occur soon, so immediately stop the work and replace it with a new building pillar driver and work As a result, it becomes a very safe, practical and convenient construction tool.

Further, a cap body is fixed above the locking body, and a lower holder body is fixed below the stopper body with upper and lower through-pins. Since the weight and impact force are not directly applied, even if the upper and lower bar pins are cut off, the cap body and the lower holder body are firmly fixed to the rod body. It is a practical and highly safe pillar driving tool for buildings that does not fall out of the rod body and fly outside and cause an accident.

According to the second aspect of the present invention, the upper penetrating pin and the lower penetrating pin which are not affected by the weight of the driving weight and the impact force are connected by the tie rope in the same manner as described above. Even though the cap body lower holder body at the upper and lower ends of the rod body is connected by a rope, the locking body, driving weight and stopper body do not fall out of the rod body and fly outside and cause no accident. It will be a safe and practical building pillar driver.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a perspective view showing the above-mentioned use example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Rod body 2 Cap body 3 Upper penetrating pin 4 Locking body 5 Stop bar pin 6 Stopper body 7 Lower bar pin 8 Lower holder body 9 Lower penetrating pin 10 Tethering rope 11 Driving weight A Building pole driver L ₁ Predetermined interval L ₂ Predetermined interval

Claims (2)

(57) [Claims] 1. A locking body which is fixed to the top of a pillar, which is slightly shorter than a pole to be driven, is fixed to an upper part of the pillar by an upper bar pin, and a stopper body is fixed to a lower part by a lower bar pin. And a driving weight for a building in which a driving weight is slidably fitted to a rod body between the locking body and the stopper body, wherein a predetermined gap is placed at an upper end of the rod body above the locking body. A cap body fixed with an upper penetrating pin, and a lower holder fixed with a lower penetrating pin at a lower end of a rod body below a stopper body with a predetermined gap therebetween; . 2. The pillar driving tool according to claim 1, wherein the upper penetrating pin and the lower penetrating pin are connected by a tether.