US2175478A - Banding tool - Google Patents

Description

G. L. McKEE SANDING TOOL Oct. 10, 1939.

Filed July 23, 1937 2 Sheets-Sheet 1 mm r ATTORNEY.

' a recessed portion l2 by means of a. peripheral Patented Oct. 10, 1939 PATENT orncs BANDING 'roon Glenn L. McKee, Bakersfield, CaliL, assignor to McKee Brothers Calif.

Corporation, Bakersfield,

Application July 23, 1937, Serial No.'155,156

' 9 Claims. -(Cl. 81-9.3)

My invention relates to a banding tool, and more particularly to a tool for tightening a metal band around an article, e. g., a round article such as a hose, a telephone pole, etc., or a rectangular article, such as a box, a railroad tie, etc.

' An important object of the present invention .is to provide such a tool that may beheld in the operators hand during the banding operation.

Another object is to provide in such a tool means forv cutting off surplus from the end of the band, after the band has-been applied to and tightened around the article desired to be banded. The invention also comprises novel details of construction and novel combinations and arrangements of parts, which will more fully appear in the course of the following description.

In the drawings, likereference characters designate similar parts in the several views.

Figure 1 is a face view of an embodiment of my 7 invention.

Figure 2 is a vertical section with certain parts removed, and showing the handles in a different operative position.

Figure 3 is a broken face view, looking in the opposite direction.

Figure 4 is an enlarged view, partly in cross section, taken on the line 4-4 of Figure 5.

Figure 5 is also an enlarged' view, partly in 'section and partly broken away, looking in the direction of the arrow A of Figure 4;

Figure 6 is an'enlar'ged section taken on the line 6-6 of Figure 1.

Figure 7 is a broken, perspective view of a hand lever comprised in the invention and its associated parts.

Figure 8 of Figure 5. I

Referring more in detail to the drawings, the

reference numeral 9 designates a handle for the tool mounted on a head II) that is provided with flange l3. A face plate I4 is bolted .on the flange I3, thereby providing a housingfor mechanism I disposed in the recess I2.

A rotary ratchet wheel I5 is mounted on a spindle l6 and provided with a split end A sleeve bearing l8 rotatably mounts one end of the spindle M5 in the head "I and a sleeve hearing I! rotatably mounts the other end of the spindle IS in the face plate ll.

Pivoted on a pin inthe recess l2 ofthe head I]! is another handle 2|. A block 22 is also pivoted on the pin 20 and in turn supports a dog 23 by means of a floating pivot pin 24. The block 22 has a laterally bent lug 25 thatis engaged by is a section taken on the line 88 the relatively movable handle 2| moved in one direction (counter-clockwise, as shown in Figure '7).

' The dog 23* comprises a tooth 26 for engaging the ratchet wheel l5, and also carries 9. lug 21, 5 apertured at 28, for receiving a bolt 29 that is provided with threaded ends. An adjusting nut 30 is screwed on one threaded end of the bolt 29, and the other threaded end is screwed into a rotary abutment 3 I. A helical spring 32 is wound 10 around the bolt 29 and abuts the lug 21 and the abutment 3|. Said spring rocks the dog 23 about the pivot pin 24. Pressure of the spring 32 against the lug 21 thereby urges the tooth'26 of the pivoted dog 23 into engagement with opposed 15 teeth of the ratchet wheel. The nut 30 engages a shoulder 33 of the fiange'I3. The shoulder 33 inclines upwardly (in Figs. 1 and 2) 'at an angle to a tangent of the arc of movement of the nut 30. Thus, by adjustment of the nut 30, it en- 20 gages a difierent point on the incline of said shoulder, which determines the amount that the ratchel wheel is rotated during one cycle of movement of the pivoted handle 2|. It is to be understood that when the nut has been screwed up the bolt 23, so that the shoulder 33 is not touched by the nut 3|], in the cycle of operation, the longest stroke of the dog 23 is obtained. In this event, the bolt 29 itself engages the shoulder 33, .to limit the dog 23; Thus by changing the 30 position of the nut on the bolt 29, the amount of rotation of the ratchet wheel during one cycle of operation of the pivoted handle is varied.

Means to prevent retrograde movement of the ratchet wheel while the dog 23 is being moved to 35 engage other teeth of the ratchet-comprises a pawl 34. The pawl is mounted on a pin 35 that is journaled in the head I!) and plate M, as shown in Figure 8. The pin 35 has its ends projecting beyond said head and plates A crank arm 36 is keyed on one projecting end of the pin35. The other projecting end is slit, as shown at 31, to receive a flat spring 38. This spring tends'to move the pawl 34 into engage- I ment with the ratchet wheel. The crank arm 36 has a spring latch 39, which in one position (shown in Figure 8) engages a socket II in' the plate I4. When the latch 39 is in the socket 4|, the ratchet I5 is locked against successive rotation. When the latch 394s withdrawn manually from the socket ll and the crank arm 35 is moved to the position shown in Figure l, the ratchet l5 may be rotated in successive'stages, to tighten a band around an article.

and lower blocks 42 and 43. A groove 44 is provided between the blocks. The groove 44 is preferably entirely in the upper block 42,although complementary portions of the groove may be in the two blocks.

A shearing bolt 45 is rotatably mounted in complementary halves of a cylindrical opening between the blocks 42 and 43. The bolt 45 is transverse to the groove 44. That portion of the bolt 45 that extends across the groove 44 is half cut away, towit, that half that is normally in the upper block 42. Screws 46 fasten the blocks 42 and 43 together.

On what is normally the rear face of the tool, a lever 41 is fastened on the shearing bolt 45. A fiat spring 48 is disposed in a split end 49 of the bolt and is hooked into the head I0, as shown at 50. The spring 48 urges the free end of the lever 4'lagaiinst the side of the head I0. When the lever 41 is against the side of the head III, the groove 44 between the blocks is unobstructed' In the use of my tool, a band 60 such as shown and described in my co-pending application for patent, Serial No. 125,650, filed February 13, 1937, is applied to a hose 6|. A coupling 62 laps the joint between hose sections. Reference is made to said application and also to my co-pending application Serial No. 79,545, filed May 13, 1936, now issued as Patent No. 2,150,234, dated Mar. 14, 1939, for subject matter shown and described but not claimed herein.

The present tool is a portable hand tool for tightening such a band around the hose or other article, as suggested at the outset cation.

A clip 63 embraces wraps of the band, 60. One end 04 of the band is bent around an end of the clip 63, to prevent such end from slipping through the clip. The other end 65 of the band is inserted lengthwise of the groove 44, across the flat side of the shearing pin 45 and into the split of the end IT. A nose 66 formed by beveled front faces ofthe blocks 42 and 43 contacts the clip 83 to restrict its movement. The position of the clip 63 spaced from the nose 66, as shown in Figures 4 and 5, is prior to the tightening of the band 60 aroundan article.

The ratchet I is now rotated in the. direction of the arrows shown in Figure 2, by moving the of this specifihand1e2| toward the handle 9 by successive movements. The handles are gripped as suggested by the broken lines in Figures 1 and 2, illustrating the user's hands.

Said movement of the pivoted handle 2| efiects movement of the block 22 by contact with the lug 25. Tooth 26 of the dog 23 successively engages teeth around the ratchet wheel to advance the latter by successive movements of the dog. The spring 32 urges the dog tooth into engagement with the ratchet and the number of teeth that the ratchet wheel is advanced upon each movement of the dog is determined by the posi- .tion of the nut 30, which thereby can be varied to engage different points on the incline'of the shoulder 33, or to permit the bolt 29 to engage the incline.

--A fter the band 50 has been sufliciently tightened around an article, theband is looked upon the clip 63, to maintain the compression or tension upon the article, in the following manner: The banded article is moved from the position shown in Figure 1 to the position shown in Figure 3. This movement bends the end 65 of the band around the end of the clip 63. To permit such movement of the banded article, the tool During this movement, the spring latch 39 is in the recess 4| and the handle 2| is moving away from the handle 9. Thus the tension or compression is maintained on the article as the band is looked around the clip.

The banded article may then be bent upward, as shownin Figure 3, so as to bend the band end 65 substantially parallel with the end 64, to lock the band in its tightened position around the article.

The band end 65 is then sheared by moving the handle 2| further away from the handle 9, as suggested by the arrow adjacent the handle 2| in Figure 3. The lever 41 thereby rotats'the shearing pin 45 in the direction of the arrow adjacent such lever in the same figure and in the direction of the arrow adjacent said pin in Figure 5. This movement causes the pin 45 to shear the band against the edge of the complementary groove in the upper block 42.

The remaining portion of the end 65 is then bent down on the clip 63 and the end is bent down upon the first-mentioned end in the manner shown and described in my said co-pending applications.

It will be noted in Figure 5 that the upper bloclr 42 has a slot 61 that permits play of the band end 65 in the upper block. The broken line Hi5 suggests an extreme position of the band 65 during the rotation of the ratchet.

Moreover, the opening in the lug 2'! is larger than the pin 29, topermit rocking of the one relative to the other.

While I have illustrated and described what I now regard as the preferred embodiment of my invention, the construction is, of course, subject to modifications without departing from the spirit of my invention. I, therefore,do not wish to restrict myself to the particular form of construction illustrated and described, but desire to avail myself of all modifications which may fall within the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by letters Patent is:

1. A banding tool comprising relatively movable handles, mechanism on the tool to draw a band tight around an article, a shearing block fastened on the tool, a shearing pin rotatable in the block, means onthe pin to turn the pin, one of the handles being arranged for relative movement in opposite directions, said handle being arranged to actuate said means by movement in one direction and being operatively connected with said mechanism upon movement in the opposite direction.

2. A banding tool comprising relatively movable handles, mechanism on the tool to draw a band tight around an article, a shearing block fastened on the tool, a. shearing pin rotatable in the block, a lever on the pin, a spring tending to move the lever to a position in which the pin is in a non-shearing position, one of the handles of the tool being arranged for relative movement in opposite directions, said handle being arrangedto engage and move the lever against the action of said spring by movement in one direction, to rotate the pin to a shearing position, and said handle being operatively connected with said mechanism upon movement in the opposite direction. I

3. A banding tool comprising relatively movable handles, a'movable ratchet on one of the handles, a pivoted dog arranged to be actuated by the other handle to transmit motion to the ratchet by relative movement of the handles, a spring, a pivoted arm arranged to stiffen the spring, the spring being connected to move the dog piv'otally into engagement with the ratchet, means limiting the pivotal movement of the arm, and thereby limiting the motion transmitted by the dog to the ratchet, and means connected with the ratchet for winding up a band, by movement of the ratchet, to tighten the band about an article.

handles, a ratchet on one of the handles, a pivoted dog arranged to be actuated by the other handle and to move the ratchet by relative movement of the handles, a bolt on the dog, a nut on the bolt arranged to strike a portion of one of the handles to limit pivotal movement of the dog and by the dog to the ratchet, and means connected with the ratchet for winding up a band by movement of the ratchet, to tighten the band about an article.

5. A banding tool comprising relatively movable handles, a ratchet on one of the handles, a rocker dog arranged when actuated to advance the ratchet, a block pivoted with respect to the handles, the dog being pivoted on the block to actuate the dog by relative movement of the handles, and means connected with the ratchet for winding up a band to tighten same about an article.

6. A banding tool comprising handles relatively movable .about a pivot, a ratchet on one of the handles, a rocker dog arranged when actuated to advance the ratchet, a pivoted block providing a floating pivot for the dog and disposed inthe path of one of the handles, to actuate the dog by relative movement of the handles, and means connected with the ratchet for winding up a band to tighten same about an article.

7. A banding tool comprising handles relatively movable about a pivot, a rotary ratchet on one 4. A banding tool comprising relatively movable thereby limit the motion transmitted of the handles, a pivoted dog arranged to be actuated by the other handle to transmit rotary movement to the ratchet by relative movement of the handles, means connected with the ratchet for winding up a band to tighten same about an article, the tool having a shearing edge, a shearing. pin mounted adjacent the shearing edge to turn on an axis between the axis of the ratchet and the article being banded, the pin having means to turn it, one of said handles being arranged to actuate said means to turn the shearing pin relative to the shearing edge, to efiect a shearing action.

8. A banding tool comprising a handle, a ratchet and a block pivoted on the handle, a rocker dog pivoted on the block and arranged when actuated by the block to advance the ratchet, a second handle pivoted on handle and arranged to contact the block, spring means urging the dog into engagement with the ratchet, means connected with the ratchet for winding up a band to tighten same about an article, and shearing means for the band, the second handle being movable separately from the ratchet, block and dog on the other handle and arranged to engage and actuate the shearing means when so separately moved.

9. A banding tool comprising relatively movable handles, mechanism on the tool to draw a band tight around an article, a shearing block fastened on the tool, the block having a slot therethrough for the band, a rotary shearing pin in the block transversely of the slot, the pin having a portion removed to provide a free passage lengthwise of the slot, in one position of the pin, and to afford a shearing movement of the pin when same is rotated, one of the handles being arranged to actuate the shearing'pin, and means connected to the pin to turn same and disposed to be actuated by the latter handle.

GLENN L. MCKEE.

the first-mentioned

Images