US2151130A

US2151130A - Tape reel

Info

Publication number: US2151130A
Application number: US58042A
Authority: US
Inventors: Mattsson Nils Salomon Albert; Dahlqvist Karl Erik
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-01-10
Filing date: 1936-01-08
Publication date: 1939-03-21
Anticipated expiration: 1956-03-21

Description

March 21, 1939. N. A. MATTSSON ET AL 2,151,130

TAPE REEL Filed Jan. 8, 1936 3 Sheets-

Sheet

1 ,9 7 To/eA/Efs Mam 21, 1939. N. s. A. MATTSSON ET AL 2,151,130

TAPE REEL Filed Jan.

8, 1936 3 Sheet's-Sheet 2 a Z M N 57L 0 v .1 M 17 4 Z. SL Ev, K

March 21, 1939.

Fig. 5

N. s. A. MATTSSON ET AL 2,151,130

TAPE REEL Filed Jan. 8, 1936 5 Sheets-Sheet Patented Mar. 21, 1939 PATENT OFFICE TAPE REEL Nils Salomon Albert Mattsson and Karl Erik Dahlqvist, Kvitsleby, Sweden Application January 8, 1936, Serial No. 58,042 1 In Sweden January 10, 1935 I 1 Claim.

Tape-reels hitherto known have some drawbacks, of which may be mentioned that a person while measuring, after the tape has been stretched out, must hold on to the inner end of 5 the tape with one hand, while holding the tapereel with the other hand, so that consequently both hands are occupied by the measuring.

According to the present invention this is avoided in that the tape-reel is rotatably mounted in a retaining-frame enclosing the same, at the upper end of which a handle is jointed, which is provided with a brake arrangement co-operating with the reel. This may for instance consist of a pawl attached to the handle, and arranged to co-operate with a ratchet-wheel, at-

tached to the reel, or the brake arrangement may consist of a brake shoe attached to the handle, and arranged to co-operate with the reel.

The advantage is hereby gained, that a person can handle the tape-reel with one hand only, as one only has to move the handle forwards and. downwardsin order to brake the reel.

Another inconvenience, which is inherent in the tape-reels hitherto known, is that one has to use abnormally large watch-springs for the rolling up of the tapes, for which reason only short tapes can be used, which is an inconvenience, for measuring of timber, where a great length of the tape is needed.

According to the present invention this inconvenience will be avoided in that the retainingframe by way of the watch-spring is connected with the reel through a gear arrangement, whereby one, by means of a very short spring, can

5 use a considerable length of tape, the unrolling of the tape at the same time being done very easily, and in such a manner, that the arrangement will work smoothly and pleasantly.

According to one form of the invention, one

40. end of the watch-spring is attached to the reel and the other end of the same to a pinion, rotatably arranged in the reel, which pinion engages a gear rotatably arranged in the reel, which gear in its turn engages a gear, which is at- 45 tached to the retaining-frame.

The retaining-frame may also be rotatably arranged in relation to the gear and the latter attached to one or several arms rotatably arranged in relation to the retaining-frame, the movement 50 of which is limited by the retaining-frame.

One of the arms may be provided with a projection which may be readjusted in relation to the retaining-frame and, by means of which the braking effect may be regulated.

55 In order to prevent the watch-spring from breaking by too rapid unrolling of the tape, the inner end of the watch-spring is connected with the gear by means of a catch arrangement, which actuates the spring only by motion in one direction. 5

To prevent the tape from being torn apart by unrolling, the inner end of the tape is fixed to the reel by means of a bowlike spring enclosing the same, and which spring by violent pulling of the tape will be released at its inner end. 10

- A locking device is slidably or dropably attached to the handle in order that the same when necessary may be locked in braking position relatively the tape-reel.

Some forms of the invention are illustrated in the accompanying drawings Figure 1 shows a tape-reel in side elevation.

Figure 1a shows this tape-reel in section.

Figure 2 is a side view of a somewhat different tape-reel. 20

Figure 2a shows the tape-reel of Figure 2 in section;

Figure 3 shows another tape-reel in side elevation;

Figure 4 shows a portion of the tape-reel illustrated in Figure 3 in a different position;

Figure 5 is a section along the line 5-5 of Figure 3; and

Figures 6, 7, 8, and 9 illustrate various parts 30 of the tape-reel shown in Figure 3.

Like reference numerals mark the same parts in the figures of the drawings. In Figure 1, l indicates the tape-reel, 2 the frame and 3 is the handle. 5

The tape-reel shown in Figure 1 comprises also a shaft 4, which is rotatably mounted in the frame 2. The reel I is rotatably mounted on the shaft 4.

The handle 3 is pivotally mounted upon a shaft 5 carried by the upper end of the frame 2, the movement of the handle 3 relatively to the frame 2 being limited by the upper end of the latter. A pawl 6 is attached to the handle 3 and is situated in front of the frame 2. When the front part of the handle 3 is lowered and is brought into the position shown by broken lines in Figure l, the pawl 6 will be brought into engagement with the teeth of a ratchet wheel I.

A tapered key 8 is attached to the lower side of the handle 3. The key 8 may be moved relatively to the handle 3 and is used for locking the handle in its lowered position. The key 8 locks the handle by projecting between the frame 2 and the handle 3.

The tape may be wound upon the reel I by any suitable means.

The device shown in Figure 2 comprises a tape-reel I, rotatably mounted upon a shaft 4a, which is carried by a frame 2a. The frame 2a is pivotally connected by means of the pivot 5a with the handle 3a. A locking device 80. is carried by the handle 3a. Instead of the pawl shown in Figure l, the handle 3a carries a brake shoe 9, which is adapted to engage a surface of the reel I. A bolt I extends through the frame 211 and is used for limiting the movement of the handle 3a relatively to the frame 2a.

The tape-reel shown in. Figures 3 to 9 comprises a reel I carried by a frame 2b, which is connected by means of the pivot b with the handle 31) carrying a locking device 81). The frame 217 carries a bolt Iflb used for limiting the movement of the handle 32).

This tape reel is provided with three arms II, I2, and I3. The arm II is used for holding one end of the tape when the latter is fully rolled up. The arm 12 is used for limiting the rearward movement of the frame 2b. The arm I3 carries a rotatable projection I4 and is used for limiting the forward movement of the frame 2b. The rotatable projection I4 is used for regulating the braking action of the brake shoe carried by the handle 3b. 7

As shown in Figures 5 to 9, a shaft I 5 is mounted in the frame 2b and is provided with a bushing I6. A wheel I8 having inner teeth I! is rotatably mounted on the bushing IS. The teeth I! of the wheel I8 engage the teeth of a pinion I9, which is rotatably mounted upon a shaft 20 carried by the tape-reel casing 2| of the tapereel I.

The teeth of the pinion l9 also mesh with the teeth of another pinion 22 carried by a 40 square, hollow shaft 23. Due to this arrangement, the pinion 22 is rotatable with the arms H, I2, and !3. However, the pinion 22 isrotatable relatively to the bushing I6 upon which it is mounted.

The inner end of a coil spring 24, which is similar to that of a watch, is connected with the wheel I8 by means of a heel or member 25, as shown in Figures '7, 8, and 9. The heel 25 when rotated in a predetermined direction engages the rearwardly bent inner end of the coil spring 24.

However, the heel 25 releases: the spring 24 when it is rotated in the opposite direction.

The outer end of the spring 24 is connected with the tape-reel casing 2I by means of a screw 55' 26. The tape-reel l with its casing 2I is rotatably mounted on the wheel I8 and the hollow shaft 23 of the pinion 22.

The operator uses the device by holding the handle 31) and unrolling the tape from the reel. By a suitable inclination of the handle 3?), the brake shoe 9b can be brought into engagement with the edge of the tape-reel I for braking the same, this braking action being adjustable by means of the projection I4.

The inner end of the tape 21 is held upon the tape-reel casing 2| by means of a bow-like spring 28. When the tape is unrolled, the tape-reel I is rotated. The pinion 22, however, which is connected with the arms II, I2, and i3, is held in place when the projection I4 engages the frame 212. Therefore, the pinion I9 will rotate the innergear wheel 1?. The spring 24 is thereby adjusted in accordance with the ratio of the gear wheels.

sired length, the handle 3b is tilted forward and then the brake shoe 9 engages the edge of the reel I, causing the tape-reel to stop. When it is desired to roll up the tape, the handle is tilted backward. Then the tape-reel is released 5 and the tape can be rolled on by the coil spring 24.

In the construction shown in Figure 3, the spring is of such length that when the outer end of the tape, which is provided with a ring, is 10 The bolt at the end of the arms I2 is then adapted to prevent the rearward movement of the frame 21). further than up to the arms I2.

When the tape is pulled out, there is a rotation in the. opposite direction and the bolt at the end of the arms I3 is stopped by the handle 31), which is pivotally mounted in the frame 2b.

The bolt situated at the end of the arms I3 prevents the handle with its brake-shoe from folding down on the reel on account of the spring tension, thereby causing the bolt at the end of the arms I3 to press against the handle 3b. However, when the free end of the flexible handle is depressed, the arm I3. will be displaced and the brake-shoe will press against the wheel as shown in Figure 4 of the drawings.

The arms II are used as a stop for the free end of the tape, and they are also used as guides to prevent the shifting of the tape upon thereel.

As far as the slidable wedge-shaped device 81) is concerned, this device is caused to slide forward by the locking of the reel, whereby a greater space is provided between the bolt I02) and the handle 3. The arms I3 are then moved outwardly and the front part of the handle is lowered so that the brake-shoe is pressed against the reel and prevents its rotation.

The pinion 22 is provided with a square portion Moo-operating with a square hole formed in the plate carrying the arms Il, I2, and I3 and is rotatably mounted upon the shaft I5 shown in Figure 5 and corresponding to the shafts 4 and 4a shown in Figures 1 and 2.

In the construction shown in Figure 3, the arms II, I2, and I3 are fixed on one side to the square portion 23, so that the tension of the spring is transmitted to them, thus causing the bolt at one end of the arms I3 to rest against the handle 3. The other side of the arms is rotatably mounted on the shaft I5.

The frame 2b is rotatably mounted on both sides uponv this shaft, thus causing the arms I3 to press against the handle 3b when the end of the tape rests against the bolt carried by the outer ends of the arms II.

The constructions shown in Figures 1 and are substantially similar, with the exception that in these constructions one side of the frame is fixed to the square portion which is connected to the pinion 22, while the other side is rotat- 65' ably mounted upon the shaft.

It is obvious, that the invention may be varied in many respects, without departing from the spirit or scope of the invention.

What we claim is:

A tape-reel, comprising a handle, a frame, said handle being pivotally mounted upon said frame and being rotatable relatively thereto, braking means firmly connected with said handle, a reel n having means engaged by said braking means frame, said handle resting against said arm during the unrolling of the tape, whereby said handle is prevented from moving into the braking position by the increased tension of said spring.

NILS SALOMON ALBERT MATTSSON. KARL ERIK DAHLQVIST.