JPH0650099Y2 - Bar clamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a bar clamp used for connecting metal panels.

[Conventional technology]

Some truck tilts and construction panels are constructed by interconnecting metal hollow members made of extruded aluminum and the like, and the members are fitted together as described in Japanese Utility Model Publication No. 56-4889. As a result, it can be assembled as a panel without using screws or rivets.

A bar clamp 1 as shown in FIG. 4 has been used for assembling a hollow metal member to such a panel.

This is a vise type having a rail type steel bar member 2 as a main body, and has a fixed pressure plate 3 at one end of the bar member 2 and a movable pressure plate 5 which can be moved back and forth with a screw 4 at the other end. It is provided so as to face the fixed pressure plate 3.

In the figure, 6 is a metal hollow member arranged on the support base 7. To fit these in the longitudinal direction, the steel bar member 2 is placed on the hollow member 6 so as to be orthogonal to each other, and Member 6
The screw 4 is rotated by the handle 8 so that the distance between the fixed pressure plate 3 and the movable pressure plate 5, which are joined to each other, is shortened.

In this way, the arranged metal hollow members 6 are sequentially moved from the end along the length direction and pressed from both sides at appropriate intervals.

[Problems to be solved by the device]

In the vise type bar clamp 1 shown in FIG. 4, all the pressurization is performed by the rotation of the screw 4, so it takes time to completely tighten the screw. Further, in order to move the pressurizing point, the tightened movable pressurizing plate 5 is loosened by the reverse rotation of the screw 4 to retreat, and the whole long bar member 2 made of steel is lifted and laterally moved. It had to go through, and the workability was extremely poor.

An object of the present invention is to provide a bar clamp which eliminates the inconveniences of the conventional example, can pressurize and move easily and quickly, and improves workability.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a cylinder jack at the lower front end of an elongated frame composed of two parallel rectangular cylinders having vertical through holes formed at appropriate intervals. A first pressure plate that is movable back and forth in the longitudinal direction is attached, and a movable body in which a second pressure plate facing the first pressure plate is provided on the elongated frame so as to project downward is movable in the longitudinal direction. A through hole that matches the through hole in the engaging portion of the movable body with the elongated frame, and a stopper pin is attached to and detached from the through hole between the engaging portion of the movable body and the elongated frame. A slender frame is provided with a roller that rotates in a direction orthogonal to the frame downward, and a pressure plate is provided with a synthetic resin plate having slipperiness and wear resistance. Furthermore, the movable body is located above and below the hollow body. A plate protruding to the right is provided, a resin plate is interposed here as an engaging portion for the elongated frame as an engaging portion for the elongated frame, and a resin guide that abuts the elongated frame side portion is provided on the side of the hollow body. That is the summary.

[Action]

According to the first aspect of the present invention, the elongated frame is supported by the rollers so that the elongated frames are orthogonal to the hollow members of the metal arranged on the support base so as to be orthogonal to the hollow member. The second pressure plates are brought into contact with or close to the hollow members on both sides, respectively. At that time, the distance between the first pressure plate and the second pressure plate is adjusted by moving the movable body along the elongated frame, aligning the through holes at appropriate positions, and inserting and fixing the stopper pin. .

After doing this, the cylinder jack is driven and the first
When the pressure plate is pushed out, the distance between the first pressure plate and the second pressure plate is shortened, and the metal hollow members arranged side by side are pressed from both sides and firmly fitted to each other.

Next, the cylinder jack is driven to retract the first pressure plate to widen the space between the first pressure plate and the second pressure plate, and then
The hollow member is transferred as it is to the elongated frame, moved to the next pressing portion, and the same pressing operation is repeated again.

According to the present invention as set forth in claim 2, in addition to the above action, the space between the first pressure plate and the second pressure plate is widened, and then the elongated frame is transferred on the hollow member as it is to perform the next pressing. When moving to a point, even if the pressure plate slides against the end of the hollow member, the hollow member directly touches the hollow member because it is a synthetic resin plate with slipperiness and abrasion resistance, so there is no risk of scratches, etc. You can do it.

According to the present invention as set forth in claim 3, the movable body further comprises:
Since the resin plate is interposed here as the protruding part of the plate as the engaging part to the elongated frame, it can move smoothly without friction resistance, and the side of the hollow body is made of resin that contacts the side of the elongated frame. Since a guide is provided, eccentricity during sliding can be prevented.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway side view showing an embodiment of the bar clamp of the present invention, FIG. 2 is a plan view of the same as above, and FIG. 3 is a sectional view taken along line AA of FIG.

The elongated frame 10 was formed by arranging the square cylinders 10a made of aluminum extruded shape and connecting the front and rear ends and the middle thereof with the channel members 10b by the aluminum extruded shape.

Each rectangular tube 10a that constitutes the elongated frame 10 has vertical through holes at appropriate intervals (for example, 50 mm intervals) except for the front half.
23 was set up.

A hydraulic cylinder jack 11 is provided at the lower part of the front end of the elongated frame 10 as a bracket using the downward projecting portion of the channel member 10b, and the cylinder jack 11 can move back and forth in the longitudinal direction of the elongated frame 10. Attach the first pressure plate 12. In the figure, 13 is a small electric pump provided upward by the elongated frame 10, 14 is a manual switching valve provided in the middle of hydraulic piping connecting the small electric pump and the hydraulic cylinder jack 11, and the cylinder jack 11 is driven by these. It will be.

The cylinder jack 11 may be an air cylinder jack.

In the figure, reference numeral 15 denotes a movable body which is attached to the elongated frame 10 so as to be movable back and forth in the longitudinal direction. As shown in FIG. 3, the movable body 15 is stretched horizontally above and below a hollow main body 15a having a rectangular cross section. Plates 15b, 15b 'for taking out are provided, and these plates 15b, 15b'
The left and right overhanging portions of these are used as engaging portions for the elongated frame so that the upper and lower sides of the rectangular tube 10a are sandwiched between them.

Then, a synthetic resin plate 24 having slipperiness and wear resistance is interposed on the inner side surfaces of the left and right projecting portions of the plates 15b and 15b '.

In addition, the elongated frame 1 is provided on the side of the hollow body 15a of the movable body 15.
A synthetic resin resin guide 25 having a thickness such that it comes into contact with the side portion of the square tube 10a of 0 is provided, and the plates 15b, 15b 'are provided with the elongated frame at the left and right projecting portions. A through hole 26 corresponding to the through hole 23 of the square tube 10a of 10 was formed.

The lower plate 15b 'of the plates 15b, 15b' is an angle member, and the vertical plate portion of this angle member is the movable member 15b.
A second pressure plate 16 which is provided so as to project downward from the first pressure plate 12 and faces the first pressure plate 12.

In this way, the first pressure plate 12 and the second pressure plate 16 which face each other are provided with a synthetic resin plate 19 having slipperiness and abrasion resistance as a contact plate on the facing surface side. .

On the other hand, a ring-shaped handle 28 is provided on the upper plate 15b.

On the left and right sides of the rectangular tube 10a of the elongated frame 10, a plurality of rollers 20 (two in the drawing) are provided downward by a bracket 21 that rotate in a direction orthogonal to the frame 10. This roller
20, the outside is coated with resin. Reference numeral 22 in the figure is a handle used for carrying the bar clamp of the present invention, and is provided in front of and behind the elongated frame 10 so as to face upward.

In the figure, 27 is a stopper pin that is inserted into the through holes 23, 26,
The tip is sharpened and has a collar 27a.

Next, usage and operation will be described.

As in the case of FIG. 4, metal hollow members 6 made of extruded aluminum or the like are arranged on a supporting base 7 so as to be connected to each other, and rollers 20 are supported on the hollow members 6 to support the elongated frame 10 at right angles. Put it to do.

At this time, the stopper pin 27 is not inserted, and the handle 28 is grasped to move the movable body 15 along the elongated frame 10 to adjust the position of the second pressure plate 16 according to the panel width to be obtained. The first pressure plate 12 and the second pressure plate
16 are respectively brought into contact with or close to the hollow members 6 on both sides, and when one of the through holes 23 and the through hole 26 are aligned, a stopper pin 27 is inserted and fixed.

The movable body 15 is a rectangular tube 10a at the left and right projecting portions of the plates 15b and 15b '.
It slides so as to sandwich the upper and lower sides of the
Reduces frictional resistance, and since the synthetic resin guide 25 on the side of the hollow main body 15a of the movable body 15 is in contact with the side of the rectangular tube 10a, eccentricity can be prevented during sliding.

In FIG. 1, the chain line is shown to make a wide panel, and the position adjustment of the second pressure plate 16 of the movable body 15 need only be performed once at the beginning.

After that, if the hydraulic cylinder jack 11 is driven by the manual switching valve 14 to push out the first pressure plate 12,
The first pressure plate 12 and the second pressure plate 16 are pressed from both sides until the distance between the first pressure plate 12 and the second pressure plate 16 is reduced and the metal hollow members 6 arranged side by side are firmly fitted to each other. Hold down and prevent floating.

Then, the cylinder jack 11 is driven to drive the first pressure plate 12
Is retracted to widen the space between the first pressure plate 12 and the second pressure plate 16, and then the roller 20 directly transfers the elongated frame 10 on the hollow member 6 and moves it to the next pressing point. that time,
Even if the pressure plates 12 and 16 are slidably in contact with the end of the hollow member 6, the hollow member 6 directly hits the synthetic resin plate 19 having slipperiness and abrasion resistance, so that there is no risk of scratches and smooth movement. You can do it. Further, since the roller 20 is also coated with resin or rubber, there is no risk of scratching the surface of the hollow member 6.

When the movement is completed, the same pressurizing operation is repeated again.

[Effect of device]

As described above, the bar clamp of the present invention can pressurize and move easily and quickly, and can improve workability.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the bar clamp of the present invention, FIG. 2 is a plan view of the same as above, FIG. 3 is a sectional view taken along the line AA of FIG. 1, and FIG. It is a side view which shows an example. DESCRIPTION OF SYMBOLS 1 ... Bar clamp 2 ... Bar member 3 ... Fixed pressure plate, 4 ... Screw 5 ... Movable pressure plate, 6 ... Hollow member 7 ... Support stand, 8 ... Handle 10 ... Elongated frame, 10a ... Square tube 10b ... Channel member 11 … Hydraulic cylinder jack 12… First pressure plate, 13… Small electric pump 14… Manual switching valve, 15… Movable body 15a… Hollow body, 15b, 15b ′… Plate 16… Second pressure plate, 19… Synthetic resin Plate 20 ... Roller, 21 ... Bracket 22 ... Handle, 23 ... Through hole 24 ... Synthetic resin plate, 25 ... Resin guide 26 ... Through hole, 27 ... Stopper pin 27a ... Trim, 28 ... Handle

Claims (3)

[Scope of utility model registration request] 1. A cylinder jack is provided at a lower portion of a front end of an elongated frame composed of two parallel rectangular tubes in which vertical through holes are formed at appropriate intervals, and the cylinder jack is advanced and retracted in the longitudinal direction of the elongated frame. A movable first pressure plate is attached, and a movable body having a second pressure plate facing the first pressure plate and protruding downward is attached to the elongated frame so as to be movable back and forth in the longitudinal direction. A through hole is formed in the engaging portion of the movable body to the elongated frame, and a stopper pin is detachably inserted into the through hole between the engaging portion of the movable body and the elongated frame to attach and detach the elongated body. A bar clamp in which a roller that rotates in a direction orthogonal to the frame is provided on the frame so as to face downward. 2. The bar clamp according to claim 1, wherein a synthetic resin having slipperiness and wear resistance is attached to the pressure plate. 3. The movable body is provided with a plate projecting to the left and right above and below the hollow body, and the resin plate is interposed between the projecting parts of the plate as engaging parts for the elongated frame, and on the side parts of the hollow body. 3. The bar clamp according to claim 1, further comprising a resin guide that abuts the side of the elongated frame.