JPH09314232A - Puller device for sheet metal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a puller device to be supported by one hand and to hammer by the other hand. SOLUTION: This puller device is composed of a frame forming assembly 1 consisting of a pipe 11 for erecting and a pair of supporting legs for fixing and a main body 3 of the puller in which a puller shaft 42 is mounted in the position of the point of action by taking the one side of the pipe for erecting as a supporting point. The main body of the puller has the constitution in which a nut body is pivotally attached in the intermediate position of the main body 33 of operation, in the tip part of which, a roller 31 for the supporting point provided with antislipping means and, in the rear end part of which, an operating arm 32 are respectively provided and the male screw shaft 39 of the shaft 42 for the puller, at the tip of which, a pull-up hook 36 and a rotary shaft operating body 41 provided with a lever handle 40 in the rear end part of a male screw shaft 39 for changing a welt-up head are fixed is screwed in the above nut body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for repairing a vehicle body or the like mainly having a recess, a linear groove or the like, which is a metal fitting for pulling out the recess or the linear groove by a sheet metal work. The present invention relates to a sheet metal puller device used for pulling a sheet to form a smooth surface.

[0002]

2. Description of the Related Art As a conventional sheet metal puller device, a structure is known in which a hammer is movably supported on a shaft having a hook at a front end and a stopper at a rear end. After hooking the hook of the puller device to the drawer metal such as hole-piercing pin or washer spot-welded to the recessed portion, the axial force generated by moving the hammer manually to collide with the stopper, The recesses are pulled out to make it smooth.

However, the pulling force by a hammer by manual operation has a drawback that the concave portion is pulled out too much because it is difficult to adjust the force, and when the pulling force is limited, a strong pulling force is required. Cannot be used
Further, when the range of the drawing portion is wide or the sheet metal strength is strong, the drawing is difficult.

In order to solve such a drawback, a pair of legs which can be brought into contact with a sheet metal surface is provided as shown in Japanese Patent Application No. 59-196909 (Japanese Utility Model Laid-Open No. 61-117322). , Supported slidably on a support rod having a through hole for guiding a movable rod in a direction orthogonal to the longitudinal direction at a central position,
A movable rod having a connecting piece screwed therein is inserted into the through hole, and the tip ends of a pair of operating arms are pivotally supported on the left and right of the through hole, respectively, so that the intermediate position of the operating arm and the connecting piece are connected. An improved sheet metal puller device having a structure in which a movable rod is moved in a vertical direction by a boosting means connected by a connecting rod has been developed.

In this sheet metal puller device, the legs are brought into contact with the sheet metal surface having the recessed portion, and the attachment mounted on the tip of the movable rod is engaged with the washer welded to the recessed portion, and then the operation arm is provided. It is used to pull out the recessed portion and make it smooth by pulling up the movable rod with.

As an attachment, a hanging plate having an engaging hole supported by a horizontal shaft of a hanger attached to the tip of the movable rod is arranged by welding means so that the centers of the holes are aligned with a large number of recessed portions. A structure in which the connecting shaft is inserted between the provided washers and the connecting shaft is inserted into both holes is also well known (Japanese Utility Model Laid-Open No. 59-196909, Japanese Utility Model Publication No.
(See FIG. 13 of Japanese Unexamined Patent Publication No. 60718), however, when the drawn portion is a deep groove, the washer is welded in a state of straddling the deep groove, so that it is difficult to draw the washer sufficiently and heating of the portion along the deep groove is performed. There is a drawback that a space for hitting and tapping cannot be secured, and in order to eliminate such a drawback,
After punching the leg plate with the tip to be the welded portion into the extended keyhole shape on the supporting plate with holes, the leg piece is twisted so that the plate thickness portion of the tip matches the deep groove. Was developed, and is disclosed in Japanese Utility Model Laid-Open No. 1-60718.

[0007]

In the improved sheet metal puller device, when the sheet metal surface is horizontal, the weight thereof is supported in the horizontal plane, so that it is not necessary for the operator to support the sheet metal puller apparatus. It is highly praised for its ability to perform pull-out work efficiently and efficiently, and even when the pull-out surface covers a wide area, it can be pulled out smoothly and easily. In the case where the weight of the sheet metal puller device cannot be supported by the sheet metal surface, the operator must support the weight and bring the legs into contact with the processing position for pulling out work. As a result, work fatigue becomes severe, and it becomes very difficult to set the machining position accurately. Gataku to use, a problem to be solved in that lead to results such finish accuracy deteriorates.

With regard to the attachment, when the metal plate welding metal fitting in which the legs whose tip is the welding portion is twisted as described above is used, the deep groove portion can be pulled out by using the conventional attachment. Since the amount of material used is greater than that of inexpensive washers that are generally used, and since twisting is required, a large number of sheet metal fittings with high unit prices are used, which is economically feasible. There was an inconvenience.

According to the present invention, regardless of the state of the surface on which the target portion of the sheet metal is present, for example, the horizontal surface, the side surface, etc., it can be securely fixed to the target surface easily and efficiently without the weight support of the operator. The work load can be reduced by using the puller as a main body, and at the same time the puller mainly supports the puller with one hand to check the bulging state of the processed part, while the other hand hammers it to make the recessed part. It is an object of the present invention to provide a sheet metal puller device that can be accurately and efficiently pulled out to inflate and swell according to the above condition to make it smooth.

[0010]

The sheet metal puller device of the present invention is intended to solve the above-mentioned problems and comprises one or several erection pipes (11) having a rectangular cross section and the erection pipes (11). )
A pedestal forming assembly (1) composed of at least a pair of fixing support legs (13) having a concave support tool (12) for detachably supporting, and one surface of the erection pipe (11). It consists of a puller main body (3) equipped with a puller shaft (42) at its action point as a fulcrum, and the fixing support leg (13) rotatably supports the concave support tool (12). At the base end of the column (14), a pair of suction contact plates (1
6) is connected via a support (17) swingably supporting the puller main body (3). Operation arm (3
The nut body (35) having the female screw portion (34) penetrating in the direction perpendicular to the axis is provided in the intermediate position of the operation subject (33) equipped with 2) and is parallel to the axis of the fulcrum roller (31). The male screw shaft (38) pivotally attached in a direction and integrally formed with a pull-up hook (36) at the tip or provided with a female screw hole (38) for replacing the pull-up hook (36) and the welt-up head (37). The male screw shaft (39) of the puller shaft (42), which is formed by fixing the rotary operation body (41) equipped with the lever handle (40), to the rear end portion of the nut body.
It is based on a sheet metal puller device characterized by being screwed into (35).

Then, the hanger holes (19) penetrating at a pitch interval (p) along the longitudinal direction of the erection pipe (11) are provided in a row, and the tip is used as a hanging hook (51) for an adjusting nut.
A pair of the hanging screw rods (53) screwed with (52) are provided with the hanger holes at intervals equal to or several times the pitch interval (p).
The pull plate hanger (5) is suspended by being inserted into and supported by (19), and the pull plate hanger (5) is aligned with the pitch interval (p) along the upper edge of the hanger main body (54). The main suspension ring (55) and the side suspension ring (5
6) is provided, and a large number of comb-shaped support plates (57) are formed in a row on the lower edge side of the hanger main body (54), and a hanger shaft hole (58) that horizontally penetrates each support plate (57). And the shaft hole (59) at the rear end, and the front end at the hook (6
The free hanger (61) formed in (0) is arranged between the support plates (57) with the tip opening side of the hook (60) facing the same side in the direction perpendicular to the axis, and the hanger shaft (62) is formed. ), The shaft for the puller equipped with the puller main body (3) through support
In the case where the auxiliary tool for pulling out the linear recess, which is configured to hang the leading end of (42) on the main suspension ring (55) and pull it, and smooth the entire recess or linear groove, etc. It is composed of several erection pipes (11) having a rectangular cross section and at least a pair of fixing support legs (13) having a concave support tool (12) for detachably supporting the erection pipes (11). Gantry forming assembly (1)
And a puller main body equipped with a puller shaft (42) at the position of its action point using one surface of the erection pipe (11) as a fulcrum
(3) and are configured to be available.

[0012]

DETAILED DESCRIPTION OF THE INVENTION AND

【Example】

FIG. 1 is an exploded view showing a cradle forming assembly (1) which is a part of the sheet metal puller device of the present invention with a part broken away, and FIG. 2 is a plan view of the gantry forming assembly (1). Is a front view of the Pula-based (3),
4 is a plan view of the puller main body (3), FIG. 5 is an enlarged sectional view taken along line AA of the puller main body (3) shown in FIG. 4, and FIG. 6 is an enlarged sectional view taken along line BB of FIG. Figure 7 shows the puller mainly with the auxiliary tool for pulling out the recess supported by the erection pipe.
FIG. 8 is a front view when using (3), and FIG. 8 is an enlarged sectional view of the adjusting nut (52) shown in FIG.

First, the structure of the embodiment shown in FIGS. 1 to 6 will be described. One erection pipe (11) having a rectangular cross section.
And a pedestal forming assembly (1) comprising a pair of fixing support legs (13) having a concave support (12) for detachably supporting the erection pipe (11), and the erection It consists of a puller main body (3) equipped with a puller shaft (42) at its point of action with one surface of the pipe (11) as a fulcrum.

The erection pipe (11) is an iron square tube having a side of 40 mm, a plate thickness of 1.5 mm, and a length of 800 mm, and has a diameter of 16 mm for suspending and supporting an auxiliary tool for pulling out linear recesses described later. Hanger holes (19) with 60 mm pitch spacing along the length
(p) Make a line through.

Further, in each of the pair of fixing support legs (13), a double nut (21) is screwed into the upper end portion as a height adjusting hexagon socket head bolt (20), and a fixing female member is attached to the upper end surface. Screw part
(34) and a solid support rod (14) with a diameter of 14 mm, which is provided with a fixing hole (22) in the lower end radial direction, and the erection pipe (1).
1) A 3 mm thick iron plate supporting the
A hole (23) for fixing to the fixing female screw portion (34) of the support column (14) through the hexagon socket head bolt (20) is formed, and a pipe (11) for suction is supported by suction. Left and right inner side centering on the concave support tool (12) fixed to the synthetic resin plate (24) with the pipe fixing magnet (18) embedded therein and the mounting screw hole drilled corresponding to the fixing hole (22) Ball ball head support hole (25)
And two clamping plates (26) with holes for clamping screws on the outside,
The screw at the lower end of the cervical column that formed the ball ball head (27) with a diameter larger than the ball ball head supporting hole diameter, the sheet metal surface contact magnet (15) with a diameter of 75 mm that is attracted by magnetic force to the sheet metal surface. It is composed of a pair of suction contact plates (16) which are exposed to the lower surface and are combined with a holding metal fitting fixed to the holding cap (28), and the strut (14) is attached to the lower end of the strut (14). Between the ball ball head support holes (25) of the two sandwiching plates (26) fixed in a sandwiched state, the ball ball heads (27) of the suction contact plates (16) are respectively sandwiched, and the outside thereof. The clamping screw (29) is passed through the clamping screw hole, and the clamping contact plate (16) is clamped and fixed to the clamping plate (26) so as to be swingable.

Further, the puller main body (3) has a support metal fitting (44), which rotatably supports a fulcrum roller (31) provided with streak knurls as a non-slip means, fixed to the front end and operated at the rear end. A part of the through hole that is slightly larger than the outer diameter of the male screw shaft (39) is formed in the intermediate position of the operation main body (33) that is fixed so that the arm (32) can be exchanged for long and short. The tip of the male screw shaft (39) due to the biasing of the spring (45) toward the radial center
A nut clutch that is screwed to and is retracted by operating the lever (46) against the spring (45) to release the screwing.
Put the nut body (35) with (47) into the shaft for the puller described later.
(42) is pivotally supported so that it can swing in one axis direction, and a pull-up hook (36) and a welt-up head (37) are attached to the tip.
The male screw shaft (39) of the puller shaft (42), which has a female screw hole (38) for exchanging the screw and has a rotary operation body (41) having a lever handle (40) at the rear end fixed thereto. Is threadedly coupled through the nut body (35).

Then, a hanger hole (1
The auxiliary tool for pulling out linear recesses that is used by suspending using 9) is a pair of hanging screw bars (53) screwed with an adjusting nut (52) with the tip as a hanging hook (51), and the pitch. interval
Along the upper edge of the hanger main body (54) at intervals of three times the (p),
Side suspension rings (56) to the left and right of the main suspension ring (55) as the center
And a hole (58) for the hanger shaft (62) that is formed integrally in a row on the lower edge side of the hanger main body (54) and penetrates in the horizontal direction.
Between a large number of comb-shaped support plates (57) having holes formed therein, a shaft hole (59) is formed at the rear end and a free hanger (61) having the tip formed on the hook (60) for hooking is formed. Many hooks (6
Pulling the free hanger (61) through the hanger shaft (62) through the matching shaft hole (59) and hanger shaft hole (58) with the tip open side of (0) facing the same side in the direction perpendicular to the axis. Comprising a plate hanger (5), the pull plate hanger
The side suspension ring (56) of (5) was hooked on the suspension hooks (51) of the pair of suspension screw rods (53) that were adjusted and supported by the erection pipe (11), and was attached to the puller main body (3). Shaft for Puller (42)
Hang the tip of the to the main ring (55) and pull plate hanger
(5) It is configured to raise the entire hanger.

Explaining the case where the puller device for sheet metal according to the present invention is used to draw out the recessed portion without using the auxiliary tool for pulling out the linear recessed portion, first, a washer or a welt-up head (37) is provided in the recessed portion. After welding, the abutting plate (16) for suction of the pair of fixing support legs (13) avoiding the portion.
And the pedestal forming assembly (1) is set. In this case, even if the sheet metal surface is a curved surface, it is possible to swing the suction contact plate (16).
Change so as to follow each surface, and are surely adsorbed and held. Then, by adjusting the opening of the concave support portion of the fixing support leg (13) sucked and supported so as to be a straight line and supporting the erection pipe (11), the support surface of the concave support portion has a magnet. Since it is embedded, even if it is opened in the lateral direction of the concave support part, the erection pipe (11) will be securely supported without falling, and the fixing support legs (13), the erection Pipe (11)
It is not necessary for an operator to support the weight of, and the work can be reduced.

Next, using the surface of the cradle forming assembly (1) set as described above, the washer or weld-up head (37) welded at the beginning of the work is used to pull the puller shaft (3) mainly composed of the puller. It is repaired by pulling it out at the end of 42).

First, if the member welded to the recess is a washer or a welt-up head (37), for example, if it is a washer, screw the pull-up hook (36) onto the tip of the puller shaft (42). After wearing it and hooking it on the washer, apply the fulcrum roller (31) of the puller main body (3) to the surface of the erection pipe (11) and operate the nut clutch (47) at an appropriate position, The puller shaft (42) is screwed into the nut body (35), and the operation arm (32) is operated with the fulcrum roller (31) as a fulcrum to move the puller shaft (42) at the position of its action point. Pull up, welt up head
In the case of (37), after the nut clutch (47) is freed and screwed onto the male screw of the welt-up head (37), the nut clutch (47) is screwed to the tip of the nut washer (47) by the same procedure as for the washer. Pull up the shaft (42).

In any case, the male screw shaft (39) constituting the puller shaft (42) is modified by tapping the sheet metal surface (hammer work etc.) as necessary in the raised state.
By operating the lever handle (40) at the rear end, the washer or the welded part of the weld-up head (37) is twisted off. The subsequent smoothing work is carried out in the same manner as the conventional one, and therefore the description thereof is omitted.

The case where the puller device for sheet metal according to the present invention is used for repairing a linear groove using an auxiliary tool for pulling out a linear recess will be described. The free hanger (61) of the pull plate hanger (5) is explained. ), After arranging a large number of washers in the radial direction and arranging them in a row by welding means, form the gantry forming assembly (1) in advance and adjust it to the hanger shaft hole (59) of the erection pipe (11). Set a pair of hanging screw rods (53) with nuts (52) screwed together, and set the hanging screw rods (53).
Attach the pull plate hanger to the hanging hook (51) at the end of the
The side suspension ring (56) of (5) is hung, and the gantry forming assembly (1) is suction-fixed to the vehicle body along or over the repaired part, and the pull plate hanger (5) is attached. The free hangers (61) of (1) are hooked on the rowed washers, and the respective suspension screw bars (53) are adjusted forward and backward by the adjusting nuts (52) so that they will not come loose, and the repair preparation is completed. For this preparatory work, two sets of gantry forming assemblies (1) were used, and the hanger shaft holes (5
9) may be used.

After the preparatory work is completed, the pull-up hook (36) at the tip of the puller shaft (42) of the puller main body (3) is hooked on the main hanging ring (55) of the pull plate hanger (5). The puller shaft (42) with the fulcrum roller (31) mainly composed of the puller (3) applied to the surface of the erection pipe (11) and operating the nut clutch (47) at an appropriate position. By pulling the puller shaft (42) at the working point position by screwing the body (35), operating the operation arm (32) with one hand using the fulcrum roller (31) as a fulcrum, and pulling the pull plate hanger ( 5) Pull up the entire hanger, pull out the linear groove to a specified amount or more by using the elastic limit of the processed sheet metal, and check the bulging state of the processed part while hammering the peripheral surface of the linear groove part with the other hand. Modify by.

The nut body (35) mainly composed of the puller (3) is
If the puller shaft (42) is provided with a nut clutch (47) that can be engaged with and disengaged from the male screw shaft (39), the puller shaft (42) has a male screw shaft (39). ) Can be quickly moved freely to the required position where it can be pulled without rotating the nut body (35) many times, which is the most preferable in terms of work efficiency, but is not limited to this. Always use the male screw shaft (3) of the puller shaft (42).
It may be a nut that is screwed with 9).

Further, instead of providing a pipe fixing magnet (18) in an embedded state to fix the erection pipe (11) on the support surface of the concave support tool (12), a fixing screw is attached to the side wall of the concave metal fitting. Further, as means for preventing slippage of the fulcrum roller (31),
Instead of the scoring knurls, an elastic member made of rubber or synthetic resin with high slip resistance is applied, or the fulcrum roller (31) itself is made of elastic member made of rubber, synthetic resin or square member with high slip resistance. However, it is possible to ensure stability when using it as a fulcrum.

Further, the adjusting nut (52) screwed with the hanging screw rod (53) of the auxiliary tool for drawing out the linear recess is the erection pipe (11) mainly of the nut (64) of the penetrating female screw (63). A counterbore (65) is provided on the surface side that contacts with, and the thrust bearing (66) is loosely fitted in the counterbore (65) to join the holding body (67), and the holding body (6
When the nut main body (64) is configured to be rotatable with respect to 7), the operation of the adjustment nut (52) will be lighter and the movement of the hanging screw bar (53) will be speedy. However, a normal operation nut provided on the peripheral surface with a knurl may be used so that it can be rotated by fingertip operation.

Further, the swingable supporting means of the suction contact plate (16) required for the sheet metal puller device of the present invention is not limited to the structure of the above-mentioned embodiment, and is well known in shaft couplings and the like. The universal joint structure of can be adopted.

[0028]

The puller device for sheet metal according to the present invention described above is composed of one or several erection pipes (11) having a rectangular cross section and a concave support tool for detachably supporting the erection pipes (11). (12)
A cradle forming assembly (1) comprising at least a pair of fixing support legs (13) provided with, and a puller shaft (42) at its working point position with one surface of the erection pipe (11) as a fulcrum.
A puller main body (3) equipped with a fixing support leg (13) on the base end of a column (14) that rotatably supports the concave support tool (12). Since the pair of attraction contact plates (16), which are contact magnets (15), are connected via a support that swingably supports, the device is lightweight and can be packed, transported, and stored without being bulky. At the same time, not only is it easy to assemble, which improves logistics economy and handling, but even if the peripheral surface where the target part of the sheet metal is present is a curved surface, the swingable suction contact plate (16) Since it can be sucked and fixed in a familiar manner, it does not place a burden on the operator for supporting the weight, and it can be used at a predetermined position within the range of the use of multiple sets of the gantry forming assembly (1) and the span of the erection pipe (11). Can be set to perform the pulling out work, and the pulling force is The puller mainly works to improve the finishing accuracy.In addition, while the puller main body (3) is in the process of repairing the processed surface, the puller main body (3) is supported by one hand and the bulging state of the processed part is confirmed, while the other hand is used. By hammering, it can be pulled out accurately and efficiently according to the state of the recessed part and inflated to a smooth state,
The work efficiency can be remarkably improved.

Further, the puller main body (3) is provided with a fulcrum roller (31) provided with anti-slip means at the tip end of the operation main body (33) and the operation arm (32) is provided at the rear end, respectively.
In addition, at the intermediate position of the operation subject (33), a female screw part is formed in the direction perpendicular to the axis.
(34) through the nut body (35), the fulcrum roller (31)
The nut body (35) is pivotally mounted in a direction parallel to the axis of the, and a female screw hole (38) for replacing the welt-up head (37) is formed integrally with the nut body (35), and the rear end portion is provided. Since the male screw shaft (39) of the puller shaft (42) fixed to the rotary operation body (41) equipped with the lever handle (40) is screwed, the fulcrum roller (31) is By contacting any surface of the erection pipe (11) of the gantry forming assembly (1), the work can be rapidly advanced as an operation fulcrum of the puller main body (3).

In particular, the nut body (35) has a nut clutch (47) structure which can be engaged with and released from the male screw shaft (39) of the puller shaft (42).
Either the corner pair or the screw pair can be selected by the screwing releasing operation of 7), so that the puller shaft (42) can be quickly set to the optimum position.

Further, on the supporting surface of the concave support tool (12) of the fixing support leg (13) constituting the gantry forming assembly (1), the erection pipe (1
By installing the pipe fixing magnet (18) in the embedded state to fix (1), the erection pipe (11) can be fixed to the fixing support leg (13) regardless of the standing direction of the fixing support leg (13). Concave support
Since it is adsorbed just by fitting it on the support surface of (12), it can be reliably supported by a simple operation.

As a non-slip means for the fulcrum roller (31), an elastic member made of rubber or synthetic resin having a high slip resistance is attached, or the fulcrum roller (31) itself is made of a rubber having a high slip resistance. By using one of the elastic members made of resin, etc., the sheet metal surface and the erection pipe (11) will not be damaged by inadvertent movement of the fulcrum roller (31), etc. It is possible to use a Pula principal (3) for

Further, hanger holes (19) penetrating at a pitch interval (p) along the longitudinal direction of the erection pipe (11) are provided in a row,
A pair of suspending screw rods (53) inserted through and supported by the hanger holes (19) are supported by an adjusting nut (52), and a suspension main ring is provided at the center.
Since the left and right suspension rings of the pull plate hanger (5) having (55) are hung, the pull plate hanger (5) with a small number of parts that does not require the conventional individual hanger can be directly attached to the erection pipe (11). In addition to being able to suspend and support it, hook the pull hoop hook (36) at the tip of the puller shaft (42) that has the main hanging ring (55) on the puller main body (3) to attach a large number of free hangers ( An average tensile force can be applied to 61) to expand the linear groove.

Further, an adjusting nut (52) screwed to the hanging screw rod (53) is countersunk on the side of the female screw (63) that is in contact with the erection pipe (11) of the nut main body (64). 65) is provided, and the thrust bearing (66) is loosely fitted in the counterbore (65) to hold the body.
(67) is connected to the holder (67) so that the nut main body (64) is rotatable, so that the adjustment nut (52) on the erection pipe (11) surface The rotation is light and the pull plate hanger (5) can be quickly adjusted to a well-balanced suspended state.

[Brief description of drawings]

FIG. 1 is an exploded view showing a cradle forming assembly (1), which is a part of a sheet metal puller device of the present invention, with a part broken away.

2 is a plan view of the gantry forming assembly (1) of FIG. 1. FIG.

FIG. 3 is a front view of a puller main body (3) which is a part of the sheet metal puller device of the present invention.

FIG. 4 is a plan view of the puller main body (3).

5 is an enlarged cross-sectional view of the puller main body (3) shown in FIG. 4 taken along the line AA.

6 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 7 is a front view of a case where the puller main body (3) is used in a state where an auxiliary tool for pulling out a recess is supported by an erection pipe.

8 is an enlarged half sectional view showing details of the adjusting nut (52) shown in FIG. 7. FIG.

[Explanation of symbols]

 (1) Mounting base assembly (11) Pipe for installation (12) Concave support (13) Fixing support leg (14) Support post (15) Magnet for sheet metal contact surface (16) Adsorption plate (17) ) Support (18) Pipe fixing magnet (19) Hanger holes (p) Pitch spacing (3) Puller main body (31) Support point roller (32) Operating arm (33) Operating main body (34) Female screw section (35) Nut body (36) Pull-up hook (37) Welt-up head (38) Female screw hole (39) Male screw shaft (40) Lever handle (41) Rotating operation body (42) Puller shaft (5) Pull plate hanger ( 51) Hanging hook (52) Adjustment nut (53) Hanging screw rod (54) Main hanger (55) Main hanging ring (56) Side hanging ring (57) Support plate (58) Hanger shaft hole (59) Shaft Hole (60) Hook for hook (61) Free hanger (62) Hanger shaft (63) Female screw (64) Nut body (65) Counterbore (66) Thrust bearing (67) Retainer

Claims (6)

[Claims] 1. An erection pipe having one or several rectangular cross sections.
(11) and at least a pair of fixing support legs (1) provided with a concave support (12) for detachably supporting the erection pipe (11)
3) and a cradle forming assembly (1), and a puller main body (3) equipped with a puller shaft (42) at its point of action with one surface of the erection pipe (11) as a fulcrum. The fixing support leg (13) has a magnet (15) for abutting a metal plate on the base end of a column (14) that rotatably supports the concave support (12).
And a pair of suction abutting plates (16) each including
(3) is a fulcrum roller (3
1), a nut body (35) having a female screw portion (34) penetrating in a direction perpendicular to the axis at an intermediate position of the operation main body (33) having the operation arm (32) at the rear end thereof, respectively. A female screw for pivotally mounting in a direction parallel to the axis of the fulcrum roller (31) and integrally forming a pull-up hook (36) at the tip or for replacing the pull-up hook (36) and the welt-up head (37). A male screw shaft (39) of a puller shaft (42) having a rotation operating body (41) having a lever handle (40) fixed to the rear end of the male screw shaft (39) having a hole (38). ) Is screwed to the nut body (35), the puller device for sheet metal. 2. The nut body (35) has a puller shaft (42).
2. The puller device for sheet metal according to claim 1, wherein the male screw shaft (39) can be screwed into and released from the male screw shaft (39) so that either the corner pair or the screw pair can be selected by operation. 3. A pipe for erection on the support surface of the concave support tool (12).
The sheet metal puller device according to claim 1 or 2, wherein a pipe fixing magnet (18) is provided in an embedded state for fixing (11). 4. The anti-slip means of the fulcrum roller (31) is provided with a knurl on its surface, is covered with an elastic member made of rubber, synthetic resin or the like having high slip resistance, or is fulcrum roller (3).
1) Either 1) itself is composed of an elastic member made of rubber, synthetic resin or the like having high slip resistance.
The puller device for sheet metal described. 5. An adjusting nut (52) having holes for hanger (19) penetrating at a pitch interval (p) along the longitudinal direction of the erection pipe (11) and having the tip as a hanging hook (51). The pair of hanging screw rods (53)
Hanger holes (19) matching (p) or several times apart
The pull plate hanger (5) is suspended by being inserted into and supported by the pull plate hanger (5).
4) Match the pitch interval (p) along the upper edge,
The main suspension ring (55) and side suspension rings (56) are provided symmetrically with the main suspension ring (55), and a large number of comb-shaped support plates (57) are formed on the lower edge side of the hanger main body (54) in a row. A hanger shaft hole (58) penetrating horizontally in (57) is bored, a shaft hole (59) is bored in the rear end, and a free hanger whose tip is formed on a hook (60) ( 61) and hooks (6
The tip opening side of (0) is arranged between the support plates (57) so that the tip opening side faces the same side in the axis-perpendicular direction, and the hanger shaft (62) is penetratingly supported by the puller main body (3). Shaft for puller
The sheet metal work according to claim 1, 2, 3 or 4, further comprising: an auxiliary tool (5) for pulling out the linear recess, in which the tip of the (42) is hung on the suspension main ring (55) and pulled. Pula device. 6. An adjusting nut screwed with a hanging screw rod (53).
(52) is provided with a counterbore (65) on the surface side of the penetrating female screw (63) in contact with the erection pipe (11) of the nut main body (64), and the thrust bearing (65) is provided at the counterbore (65). 66) loosely fit the holder (6
7. The sheet metal puller device according to claim 5, wherein the nut main body (64) is rotatable with respect to the holding body (67) by connecting 7).