CA1139984A - Hand-held labler - Google Patents
Hand-held lablerInfo
- Publication number
- CA1139984A CA1139984A CA000388469A CA388469A CA1139984A CA 1139984 A CA1139984 A CA 1139984A CA 000388469 A CA000388469 A CA 000388469A CA 388469 A CA388469 A CA 388469A CA 1139984 A CA1139984 A CA 1139984A
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- CA
- Canada
- Prior art keywords
- labels
- subframe
- web
- platen
- label
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Docket M-340 HAND-HELD LABELER
Abstract of the Disclosure There is disclosed a labeler having a frame and a subframe, with a print head movably mounted on the subframe for cooperation with a platen. A label hold-down member is disposed in overlying relation to the platen. The subframe carries a label roll composed of labels releasably secured by pressure sensitive adhesive to a web of supporting material, and the subframe defines a path for the web. The label roll is mounted on improved mounting structure. A manually operable actuator drives a gear which in turn effects movement of the print head. The gear carries a pivotal pawl which drives a ratchet wheel. The ratchet wheel and a toothed feed wheel mounted in the subframe are adjustable with respect to each other. A die roller cooperable with the toothed wheel is spring-urged against the toothed wheel. The frame in-cludes a movable frame section mounted on a pivot to facilitate easy replacement of an ink roller. The pivot also mounts an applicator roll and a leaf spring of the inking mechanism.
The frame section is releasably latched in place.
Abstract of the Disclosure There is disclosed a labeler having a frame and a subframe, with a print head movably mounted on the subframe for cooperation with a platen. A label hold-down member is disposed in overlying relation to the platen. The subframe carries a label roll composed of labels releasably secured by pressure sensitive adhesive to a web of supporting material, and the subframe defines a path for the web. The label roll is mounted on improved mounting structure. A manually operable actuator drives a gear which in turn effects movement of the print head. The gear carries a pivotal pawl which drives a ratchet wheel. The ratchet wheel and a toothed feed wheel mounted in the subframe are adjustable with respect to each other. A die roller cooperable with the toothed wheel is spring-urged against the toothed wheel. The frame in-cludes a movable frame section mounted on a pivot to facilitate easy replacement of an ink roller. The pivot also mounts an applicator roll and a leaf spring of the inking mechanism.
The frame section is releasably latched in place.
Description
~9~
Field o~ the Inven~ion ____~_ Thi~ inven ion relates to the axt of labelers.
~rief Descri ~ion of the Prior Ar~
U.5~ patent to William A. Jenkins No. 3,968,745 granted ~uLy 13, 1~76 discloses a lab~l~r with a frame and a s~b~rame, a platen and a print head mounted on the subframe, an actuatox having a pair of gear sections, gears driven by the gear ~ections, and a pair of gear sections or ~acks on the print head coopera~le with the gears. A toothed feed whe~l and a ratchet wheel are disposed between the gears.
The ratchet wheel is adjustable relative to the feed wheel.
A removable section is pivotally mounted on the frame. The removable sec~ion carrie~ an inking mechanism. The subframe mo~ts die roll in mating cooperakion with the feed wheel.
~he frame mounts an applicator in the fonm of a roll. In one embodiment, the ~ron~ end o the labeler has a pivotal frame section to enable replae~ment o~ the i.nk rollerO
U.S. patent appli~ation S~rial No. 6~9,945, filed Janua~y 19, 1976 o~ Paul ~. ~amisch, Jr. and Donald L. ~arn, now patent NoO 4,035,225 qranted July 12 , 1977, dis-~lo~es a cur~ed leaf spri~g which assists in the gradual paying ou~ of the compo~i~e label web from the label roll, and further disclos~s in two dLff~rent embodi~ents structure for adjusting a eed wheel and a ratchet wheel relative ~o each otherO
U~S. patent application Seri 1 No. 604,389~ filed August 13, 1975 of P~ul ~. Hamisch, Jr.r now patent No. 4,044,677 grant~d Auqust 30 , 19~7~ disclos~s interference members for enabli~ an inkex body or c~rrier to be ass~mbled onto a removable member bu~ preven~s ~he carri~r from becoming dis-assembled when the ink roller on the carrier i5 in it5 operative p~sition with respect to the print head. U.S. patent to Paul ~. Hamisch, Sr.~ No. 3,440,123, granted April 22, 1969 discloses a cam-controlled inker.
3~.~
The invention provides an improvad mechanism for adjusting the relative positions of the ratchet wheel and the feed wheel to vary ~he registration of the labels with respect to the delaminating means and to the printiny means.
This mechanism includes a pair of clutch members which can be shifted apart and rotated relative to each other to change the adjustment between the feed and ratchet wheels. The user can make the adjustment by manually driving the feed wheel when the clutch members have been shifted axially out of clutching engagement with respect to each other. More specifically, there is a dxive connect:ion between one clutch member and the feed wheel which prevents relative rotation bet~en that one clutch member and the feed wheel but allows relative shiftins movement between that clutch member and the feed wheel. A spring normally holds that clutch member and ~20 the other clutch mem~er in clutching engagement with each other. The other clutch member is coupled to the ratchet wh~el. The ratchet wh~el is mounted by one side of the subframe and the feed wheel i5 mounted by the other side of the subframe~ The subframe is disposed in the space within the frame~ The frame mounts a shaft and the shaft mounts a movable section or sover which is movable between closed and op~n positions, an applicator roll~ and a portion of an in~ing mechanism. The inking mechanism is simple in construc-tion and easy to assemble, but the inking mechanism will stay in its assembled position even through the labeler is dropped ~n the floor. The inking m~chanism includes a pivotally mounted c:arrier mounted on the cover and ~ leaf spring con~
nected ~o the shaft and to the carrier~ The carrier mounts a roll~r which is urged against a cam on the print head by the leaf spring. The pxint head preferably has two lin~s of printing mem~ers ~or printing two lines of dataO A hold-down device is used to hold a label and the underlying supporting material web down so that there is no gap between the web and the platen. This feature is conducive to quality printing because the print need not move ~he label and the web toward the platen and because if it can be assured that the web lies against the platen, then the distance be~ween the print head in the homa or re~t position and the platen can be kept to a minimum. It is preferred that a die roll be used to urge the supporting material web against the toothed feed wheel. In addition~ the die roll is sprlng-urged against the web to accommodate for manufacturing variations in the labeler. The die xoll is carried by a holder which is nested in the sub~rame and which includes a pair of lea springs. Thus, adequate mating cooperation between the die and feed wheels is assured. A leaf 5pring i5 disposed in cooperation with the web where it is first paid out of the label roll. The leaf spring has a mounting portion keyed to the subframe~
The leaf spring is conducive to the gradual paying out of the w~b from the label roll. The leaf spring and its mounting portion are comprised of one-piece ~olded plastics material.
There is a brake which acts on the composite label web between the place where the composite web is paid out of the label roll and the platen. The brake includes a roll which is ,r ~
loosely mounted in the subframe and the print head carrier leaf springs which contact a brake roll at spaced-apart locations. The u~e of such separate leaf springs is con-ducive to effective braking action against the ~omposite web ; in spite of manufacturing variations.
FIGURE 1 is an explo~ed perspective view of a hand-held label printing and applying apparatus in accordance with the invention;
FIGURE 2 is a top plan view of a composite web of labels capable of being used in the apparatus;
FIGURE 3 is a fragmentary side elevational view partly in section;
FIGURE 4 is a side elevational view o~ one of the subframe sections of ~he subframe;
FIGURE 5 is a side elevational view of the ot.her subframe section;
FIGURE 6 is a top plan view of the apparatus with the cove~ in the open position;
FIGURE 7 is a fragmentary view of the ~over;
FIGURE 8 is a sec~ional view taken along line 8--8 of FIGURE 7;
FIGURE 9 is a sectional view taken along line g_r9 of FIGURE 8;
FIGURE 10 is a top plan view of an ink roller and its carrier;
FIGURE 11 is a sectional view taken generally along line 11--11 of FIGURE 10, FIGURE 12 is a sectional view taken along linP
12--12 of FIGURE 3;
FIGURE 13 is a partly sectional view taken alon~
line 13--13 of FIGURE 3;
FIGURE 14 is an enlarged sectional view showing fragmentary portions of the frame, the subframe, drive gears the feed wheel, a ratchet and a mechanism for adjusti~g the position of the ratchet wheel relative to the feed wheel;
FIGURE 15 is a sectional view taken alonq line 15--15 of FIGURE 14;
FIGURE 16 is a view of one of the ~ears and a pawl which it carries, the ratchet teeth being shown in phantom lines;
FIGURE 17 is a sectional ~iew taken along lines 17 17 of FIGURE 16;
FIGURE 18 is a sectional view taken along lines 1518---18 of FIGURE 16;
FIGURE 19 is a sectional view taken along lina l9--lg of FIGURE 3;
FIGURE 20 is a perspective view of a label hold-down and guiding device and a portion of the subframe;
20FIGUR~ 21 is a view showing fragmentary portions o~
the carrier and a leaf spring before they are connected to each other;
F~G~RE 22 is a sectional view showing the mounting : structure for one side of a label roll; and 25FIGURE 23 is a view taken generally along a li~e 23 -23 of FIGURE 22.
Descri tion of ~he Preferred Embodiment Referring initially to ~IGURE 1, there is shown a label printing and applying apparatus or labeler generally 30indicated at 30 having a frame or body generally indicated at 31 which includes a frame section or body section 32 and a frame section or body section 33. The frame section 32 is f~
shown to have ~ubular posts or shafts 34', 35, 36, 37 and 3g and the body section 33 is shown ~o have yenerally tubular aligned posts 34, 35~, 35~, 37' and 38'~ Screws 3g are received in the posts 34', 35, 36! 38 and 39 and are threadably received in respective posts 34, 35', 36l and 38 ' . The frame sections 32 and 33 are mates to each other and are substantially mirror-images of each other.
A subframe generally indicated at 40 is shown to include subfr~ne sections 41 and 42, The subframe section 41 is shown to have male projections 43 received in and held in a snap-fit manner in apertures 44. With reference also to FIGURES 4 and 5, the subframe sections 41 and 42 have res-pective ball tracks 45 and 46 for receiving respective rolling-contact bearing members specifically ball-bearing strips 47 1~ and 48. The subframe sections 41 and 42 have respective guideways 49 a.nd 50 and 49' and 50'. The subframe sections 41 and 42 have respective posts 51 and 52 and 51' and 52' for receiving respectîve tubular rollers 53 and 54. The post~ 51 ~nd 51' rotatably mount the ~ubular roller 53 and th~ posts 52 and 52' rotatably mount the tubular roller 54.
The subfr~me sections 41 and 42 have respective round holes S5 and 56 for rotatably mounting a feed wheel assembly generally indicated at 57. The subframe sections 41 and 42 have res-pective non-c;ircular, speciically dove-tail, recesses 58 and 58' fox receiving a holder 53. The holder S9 is of one-piece molded plastics construction and includes a pair of leaf springs or spring fingers 60 and 61 having a pair of res-pective sockets 62 a~d 63d The sockets are preferably open-sided and preferably extend for ~ore than 180~ but substantially 1.~ 3~
less than 3~0 so ~s to receive respective stub ends 64 and 65 of a die roller 66~ The die roller 66 has a pair of grooves 67 that correspond in contour and alignment to teeth 68 of to~thed feed wheel 69 of the assembly 57. The teeth 68 are staggered and are disposed in two annular rows. A guide plate 70 which i.s disposed between ~he ro~s of teeth 68 has oppositely extending posts 71. The posts are received in holes 72 and 73 of the respective subframe sections 41 and ~12 to confine the supporting material web S sf the.composite web C in proximity to the surface of the feed wheel 69. The subframe sections 41 and 42 have respective non-circular recesses 74 and 74' for keying end portions of a non-circular post 75 of a latch 76. A bar 76" is co~nected to the post 75 by a leaf spring 77. The bar 76" has a pair of manually engageable projections 78 and 79 which extend through res-pective openings 80 and 80' in subframe sections 40 and 41 and through respective openings 81 and 81' in the frame sections 32 and 33. Shields 82 and 83 are disposed inbound of the projections 78 and ?9. The shield 82 is disposed between ~h~ frame section 32 and the subframe section 41 and the shield 83 is disposed between ~he frame section 33 and the subframe section 42. The shields 82 and 83 serve to keep dust out of the inside of the labeler 30. The subframe sections 41 and 42 have elonga~ed recesses 84 and 84 ' .
Marginal side portions of a platen 85 are received in the respective recesses 84 and 84' and marginal ends of a de-laminator, specifically a peel roller 86, are received in the same elongate~ rec~sses 84 and 84-'. The pePl roller 86 is in direct contac~ with shoulders 87 at the ends of the marginal s.ides of the platen 8S. The shoulders 87 define an end edge of the platen 85. There is a minimum of friction between the shoulders 87 and the peel roller 86 because of minimal contact.
In addition, any non-linearity of the peel roller 86 will have lit~le or no effect bscau~e only the end portions of the peel roller a6 are contacted by the shoulders 87. It is apparent that both the platen 8 5 ~nd the peel roller 86 are captive in the same respective recesses 84 and 84'. The guideways 49 and 49' are formed in part by guides 88 and 89.
Spaced from the respective guides 88 and 89 are projections 90 and 91. A hold-down and guide member generally indicated at 32 is shown to have a hold-down ox guide member 93 which is disposed in overlying relationship with respect to the platen 85 and a direc~ion-changing guide member 94. A mounting member 911 is interlocked between guide 88 and proj~ction 90 and between the guide 89 and the projlection 91 as shown in FIGURES 1 and 20. In addition, the subframe sections 41 and 42 have posts ~5 and 95' received in a hole g6 in the member : 94O The member 94 has a plurality of ridges 97 and inter-vening grooves 98 which extend in the direction of la~el travel shown by phantom lines PL i~ FIGURE 20~
The subframe sections 41 and 42 have respective rekaining recesses 99 and 99' for receiving stub ends 100 and 101 of a brake roller lO~ of a brake 103. The roller 102 is shown to have annular grooves 104 for receiving spaced-apart O-rings 104'.
A one-piece resilient device generally indicated at 105 includes a leaf spring or spring finger 106 which is shown to be ~urved and which is integrally connected to a mounting portion 107. The subframe sections 41 and 42 have respective recesses 108 and 108' into ~hich marginal sides of the mounting portion 107 are received~ The resilient device 105 is shown to be disposed in overlying relationship with respect to label roll R adjacent the place where the composite web C is paid outO The composite web C passes over the resilient device 105 and from ~here between the roller 102 and brake surfaces 109 and 109'. The brake 103 also includes a plurality of separate spaced-apart leaf spsings 103', specifically two, which are in contact with ~h~ O-rings 104' of the :eoller 102 at spaced apart locations. The use of at least two such springs 103' facilitates reliable braking in spite of manufacturing variations.
The frame 31 has a handle generally i~dicated at 110 and includes handle portions 111 and 112. The posts 37 and 37~ are disposed at the outer end portion of the handle 110.
; A manually operable actuator generally indicated at 113 is shown to include a lever 114 having a hole 115. The posts 37 and 37' are received in opposite endsl o~ the hole 115 to pivotally mount the actuator 113. The actuator 113 is shown ~ to include a pair of spaced-apart gec~r sections or segmen~tal gears 116 and 117. The ~ear sections 116 and 117 mesh with respective years 118 and 119 rotat~bly mounted on an axis A'.
A pxint head generally indicated at 120 includes a pair of racks or gear sections 121 and 122 which mesh with respective gears 118 and 119. A resilient device generally indicated at 123 bears against the handle 110 and 110' and against th~ inside of the actuator 113 to urge the actuator 113', the feed assembly 57 and the print head 120 to their initial or rest positions as shown in FIGURE 3. The resilient device 123 is shown to include a compression spring 124 which urges sections 125 and 126 to extended positions with respect to each other.
~ f~
The print head 120 is shown to have two sets of printing members 127 and 128 ~FIGURES 1, 3 and 6) for printing two lines of data on a label L. The lines are printed in fields F and F' disposed on opposite sides of the hold-down member 93. Each line of printing members 127 and 128 has selectively manually settable selectors 129 and 130 so tnat each line can print th~ selected data on the label ~. The print head 120 also has a pair of tracks 131 and 132 co-operable with respective tracks 45 and 46 of respective subframe sections 41 and 42. The ball bearing strip 47 is in rolli~g contact with and between ~he tracks 131 and 45 and the ball bearing strip 48 is in rolling contact wi~h and between the track~ 46 and 132. Accordingly, the print head 120 is mounted for movement into and out of cooperation with the platen 85. The racks or gear sections 121 and 122 are shown to be straight as are the tracks 45, 46, 131 and 132 so that the print head 120 moves in a straight line as is preferred.
With reference to FIGURES :L4 and 15, the feed assembly 57 is shown to include th~ :Eeed wheel 59 and a drive wheel, specifically ratchet wheel 133 having teeth 133' disposed in an annular arrangemen~. The feed wheel 69 and the ratchet wheel 133 are shown to be selectively mova~le with respect to each other. The feed wheel 69 is shown to have an a~nular rim 134 which .is connected to a tubular hub portion or projection 135 by a web 136. The tubular portion 135 ha~ an open end 137 and a closed end portion 138. The tubular portion 135 is shown to be rotatably mounted in an annular hole 139 in the subframe section 41. A projection or retainer 14~ joined to the end portion 133 extends in the axial direction. The ratchet wheel 133 includes a plurality, specifically three, spring fingers 142 having respective f~
proj~ctions or teeth 143~ The spring fingers 142 extend through elongated slots or holes 144 in the web 1360 When the ratchet wheel 133 is assembled onto the feed wheel 69, the projections initially cam the ~pring fingers 142 inwardl~
and as the proje~tions 143 pass through the holes 144, thPy snap radially outwardly so that the ratchet wheel 133 is coupled in assembled relationship to the feed wheel 59 ~or limited rotational movement. The ratchet wheel 133 is thereore adjustable to a limited extent as limited by the length of the holes 144. The ratchet whe~l 133 has a clutch me~ber 145 with an inner surface beveled witn respect to a~is A' which is provided with a plurality of small closely spaced teeth 146. A ~lutch member generally indica ed at 147 is shown to have a plurality of mating teeth 148 disposed on a bevel for cooperation with th~ teeth 146 of the clutch mem~er 145. The clutch member 147 has tubular portions 1~9 and 150 which extend in opposite directions. The tubular portion 149 has a closed end portion 150' with a coin slot 151. A
~hree-lobed seat 152 is joined to the end portion 150'. The outer surface of the tubular portion 150 is spline~, havin~
what is illustxated as heing three splines 153 which are received in a splined hole 154 in the tubular portion 135.
The splin d hole has spline grooves 155. Accordingly, the clutch member 147 is key~d against rotation with respect to the eed wheel 69 but is slid~ble axially with respect to the feed wheel 69. The conn~ction between the clutch mem~er 147 and the feed wheel 69 is considered to be a splined connection.
A compression spring 156, received within the tuhular portions 135, 149 and 150, bears at its opposite ends against the end portion 138 and the seat 152. The projection 140 serves to locate and retain the spring 156 approximately axially disposed within the feed wheel 69. The position of the clutch members 145 and 147 relative to each other can be varied by tne user c by s.imply inserting a coin in~o the slot 151 and exerting an .Lnward for~e to compress the spring 156, and as soon as the teeth 146 and 148 of the respective clutch members 145 and 147 are out of clutching ngagement, the user can rotate the tubular portion 149 and hence the clutch mem~er 147 and move it to a different selected position with respect to the clutch member 14S. Rotation o~ the clutch member 147 causes simultaneous rotation of the eed wheel 69 because o the splined connection. As soon as the user releases the force on the end portion 150', the spring 156 returns ~he clutch member 147 into clu~ching engagement with the clutch member 145.
The gear 118 is shown to be rotatably mounted on the projection 135 between the frame section 32 and the subframe section 41. The frame secti.on 32 has an annuLar boss 157 which is shown to be out of contact with the tubular portion 135 but in contact with the c~ear 118. Accordingly, the gear 118 is captive between the ~;ubframe section 41 and the boss 157. The gear 119 includes an annular rim lS8 with teeth 159 at its periphery. A web 160 is joined to one side of the rim 158 and to a tuhular hub portion 161. The hub portion 161 is rotatably mounted on the tubular portion 149.
The web 160 abuts the t2rminal end 162 of the ratchet wheel 133 and the tubular portion 161 abuts the end of an annular flange 163 of the frame section 33. Neither ~he fr~me section 33 nor its flange 163 contacts the tubular portion 149. Accordingly, the gear 119 is held captive betwe~n the ratch~t wheel 133 and the flange 163. It is apparent that the eed assembly 57 is mountad to the subrame 40 wnich in turn is mounted by the frame 31. The adjus~ment is made from only one side of the 30c~
frame 31 without the need to shift the feed or drive wheels re.lative to each other. The gear 119 carries a pawl unit generally indicated at 164. The we~ 160 has a hole or aperture 155. The pawl unit 164 has an integrally fo~med snap pro-jection generally indicated at 166 which includes a split pivot or post 167 and projections 168 with beveled cam faces 169. In the position shown in ~IGURE 17, the pivot 167 rotatably mounts the pawl unit 164 to the gear 119 and the projections 163 prevent the pawl unit from being separated from the gear 119. The cam faces 169 facilitate connecting the pawl unit 164 to the gear 119. In assembling the pawl unit 164 onto the gear 119, the cam faces 169 are inserted ` into the hole 165, and by pushing the pawl 164 fuxther into the space within the rim 158, the pawl 164 is coupled for pivotal movement as shown in FIGURE 170 The pawl unit 164 includes a pawl 16~' having an integral projection or post 170 which can move to a limited extent. in a slot 171. The projection 170 can cooperate with a stop face 172 to limit the travel of the pawl 164'. Without a means to limit the pivota~ movement of the pawl 164' it wo~ld be more difficult to assemble the pawl unit 164 with the ratchet wheel 133 beca~se the pawl unit 164 could assume any of a wide variet~ of positions. Once the pawl unit 164 is assembled into coopera~
tive re~ationship with respect to the ratchet wheel 133, tne ratchet wheel 133 holds the pawl unit 164 in a position in which the projection 170 is out of contact with the stop face 172~ However, if the gear is disassembled so that the pawl 164 is moved out o contact with the ratchet wheel 133, the stop face 172 again cooperates witn the post 170. Formed integrally with the pawl 164' is a leaf spring or spring finger 173. The lea~ spring 173 is connected to the pawl 164l adjacent the pawl tooth 174 and the other end portion Doc ~ ?~
of the leaf spring 173 contacts the underside of the rim 158.
: The spring 173 urges the pawl tooth 174 into th~ path of the teeth 133'. It :is seen that the pawl unit 164 i5 disposed : almost entirely within the space defined by the rim 158.
When the user actuates the actuator 113, the gear segments 116 and 117 rotate gears 118 and 119 which move the print head 120 lnto printing coopexation with the platen 85, and the pawl tooth 174 moves into position to coopera~e with the next tooth 133' on the ratchet wheel 133. When the user releases the actuator 113 the resilien~ device 123 urges the actuator clockwise as viewed in FIGURE 3 to return the print head 120 to its initial position shown in FIGURE 3 and to drive the pawl 164' to advance the ratchet wheel 113 and hence the feed wheel 69.
With reference especially to FIGURES 1, 22 and 23, the label roll R is shown to be mount/sd for rotation on hub members 175 and 176. The hub members 175 ~nd 176 ~re mounted on leaf springs 41' and 42' ~ormed integrally with subframe sections 41 and 42. The hub members 175 and 176 are identical.
Hence, only the hub mem~er 175 will be discussed in detail.
The hub member 175 is generally disc-shaped and has an annular hole 177. The leaf springs 41' has an annular flange 178 received in the hole 177 for rotatably mounting the hub member 175. The hub member 175 is retained on the flange 178 ~y a retainer generally indicated at 179. The retainer includes an annular disc shaped portion 180 and a split sha~t or post 181 having a pair of projections 182~ The sha~t 181 can be inserted through a hole 183 to ~he position shown in FIGURE 22 and the projections 1~2 hold the retainer 179 in 3 the assembled position. A pair of identical discs or side plates 184 and 185 are used to support the sides of the roll R so that the roll R does not telescope. The discs 184 and 185 can be assembled onto the apparatus even aftex the retainers 179 are in place. The disc 185, for example, has a pair of holes 186 and 187 which communicate with each other at a gap 188. The gap 18~ is de~ined by projections 189. The hole 186 extends through more than 180 but substantially less than 360. The hole 187 is at least slightly larger in diameter than the outside diameter o~ the hub member 175.
The hub member 175 can be inserted through the hole 187 and thereupon the disc 184 can be shifted until a boss 190 on the hub member 175 deflects the projection 189 and is received in the hole 186. The disc 184 is composed o~ a resilient material, preferably a thin sheet of transparent plastics material. The disc 184 can be assembled onto the apparatus after the hub member 185 and the retainer 179 are in their assembled position, even though the outer periphery of the disc 184 is continuous.
With reference to FIGURES 1, 3, and 6 through 9,
Field o~ the Inven~ion ____~_ Thi~ inven ion relates to the axt of labelers.
~rief Descri ~ion of the Prior Ar~
U.5~ patent to William A. Jenkins No. 3,968,745 granted ~uLy 13, 1~76 discloses a lab~l~r with a frame and a s~b~rame, a platen and a print head mounted on the subframe, an actuatox having a pair of gear sections, gears driven by the gear ~ections, and a pair of gear sections or ~acks on the print head coopera~le with the gears. A toothed feed whe~l and a ratchet wheel are disposed between the gears.
The ratchet wheel is adjustable relative to the feed wheel.
A removable section is pivotally mounted on the frame. The removable sec~ion carrie~ an inking mechanism. The subframe mo~ts die roll in mating cooperakion with the feed wheel.
~he frame mounts an applicator in the fonm of a roll. In one embodiment, the ~ron~ end o the labeler has a pivotal frame section to enable replae~ment o~ the i.nk rollerO
U.S. patent appli~ation S~rial No. 6~9,945, filed Janua~y 19, 1976 o~ Paul ~. ~amisch, Jr. and Donald L. ~arn, now patent NoO 4,035,225 qranted July 12 , 1977, dis-~lo~es a cur~ed leaf spri~g which assists in the gradual paying ou~ of the compo~i~e label web from the label roll, and further disclos~s in two dLff~rent embodi~ents structure for adjusting a eed wheel and a ratchet wheel relative ~o each otherO
U~S. patent application Seri 1 No. 604,389~ filed August 13, 1975 of P~ul ~. Hamisch, Jr.r now patent No. 4,044,677 grant~d Auqust 30 , 19~7~ disclos~s interference members for enabli~ an inkex body or c~rrier to be ass~mbled onto a removable member bu~ preven~s ~he carri~r from becoming dis-assembled when the ink roller on the carrier i5 in it5 operative p~sition with respect to the print head. U.S. patent to Paul ~. Hamisch, Sr.~ No. 3,440,123, granted April 22, 1969 discloses a cam-controlled inker.
3~.~
The invention provides an improvad mechanism for adjusting the relative positions of the ratchet wheel and the feed wheel to vary ~he registration of the labels with respect to the delaminating means and to the printiny means.
This mechanism includes a pair of clutch members which can be shifted apart and rotated relative to each other to change the adjustment between the feed and ratchet wheels. The user can make the adjustment by manually driving the feed wheel when the clutch members have been shifted axially out of clutching engagement with respect to each other. More specifically, there is a dxive connect:ion between one clutch member and the feed wheel which prevents relative rotation bet~en that one clutch member and the feed wheel but allows relative shiftins movement between that clutch member and the feed wheel. A spring normally holds that clutch member and ~20 the other clutch mem~er in clutching engagement with each other. The other clutch member is coupled to the ratchet wh~el. The ratchet wh~el is mounted by one side of the subframe and the feed wheel i5 mounted by the other side of the subframe~ The subframe is disposed in the space within the frame~ The frame mounts a shaft and the shaft mounts a movable section or sover which is movable between closed and op~n positions, an applicator roll~ and a portion of an in~ing mechanism. The inking mechanism is simple in construc-tion and easy to assemble, but the inking mechanism will stay in its assembled position even through the labeler is dropped ~n the floor. The inking m~chanism includes a pivotally mounted c:arrier mounted on the cover and ~ leaf spring con~
nected ~o the shaft and to the carrier~ The carrier mounts a roll~r which is urged against a cam on the print head by the leaf spring. The pxint head preferably has two lin~s of printing mem~ers ~or printing two lines of dataO A hold-down device is used to hold a label and the underlying supporting material web down so that there is no gap between the web and the platen. This feature is conducive to quality printing because the print need not move ~he label and the web toward the platen and because if it can be assured that the web lies against the platen, then the distance be~ween the print head in the homa or re~t position and the platen can be kept to a minimum. It is preferred that a die roll be used to urge the supporting material web against the toothed feed wheel. In addition~ the die roll is sprlng-urged against the web to accommodate for manufacturing variations in the labeler. The die xoll is carried by a holder which is nested in the sub~rame and which includes a pair of lea springs. Thus, adequate mating cooperation between the die and feed wheels is assured. A leaf 5pring i5 disposed in cooperation with the web where it is first paid out of the label roll. The leaf spring has a mounting portion keyed to the subframe~
The leaf spring is conducive to the gradual paying out of the w~b from the label roll. The leaf spring and its mounting portion are comprised of one-piece ~olded plastics material.
There is a brake which acts on the composite label web between the place where the composite web is paid out of the label roll and the platen. The brake includes a roll which is ,r ~
loosely mounted in the subframe and the print head carrier leaf springs which contact a brake roll at spaced-apart locations. The u~e of such separate leaf springs is con-ducive to effective braking action against the ~omposite web ; in spite of manufacturing variations.
FIGURE 1 is an explo~ed perspective view of a hand-held label printing and applying apparatus in accordance with the invention;
FIGURE 2 is a top plan view of a composite web of labels capable of being used in the apparatus;
FIGURE 3 is a fragmentary side elevational view partly in section;
FIGURE 4 is a side elevational view o~ one of the subframe sections of ~he subframe;
FIGURE 5 is a side elevational view of the ot.her subframe section;
FIGURE 6 is a top plan view of the apparatus with the cove~ in the open position;
FIGURE 7 is a fragmentary view of the ~over;
FIGURE 8 is a sec~ional view taken along line 8--8 of FIGURE 7;
FIGURE 9 is a sectional view taken along line g_r9 of FIGURE 8;
FIGURE 10 is a top plan view of an ink roller and its carrier;
FIGURE 11 is a sectional view taken generally along line 11--11 of FIGURE 10, FIGURE 12 is a sectional view taken along linP
12--12 of FIGURE 3;
FIGURE 13 is a partly sectional view taken alon~
line 13--13 of FIGURE 3;
FIGURE 14 is an enlarged sectional view showing fragmentary portions of the frame, the subframe, drive gears the feed wheel, a ratchet and a mechanism for adjusti~g the position of the ratchet wheel relative to the feed wheel;
FIGURE 15 is a sectional view taken alonq line 15--15 of FIGURE 14;
FIGURE 16 is a view of one of the ~ears and a pawl which it carries, the ratchet teeth being shown in phantom lines;
FIGURE 17 is a sectional ~iew taken along lines 17 17 of FIGURE 16;
FIGURE 18 is a sectional view taken along lines 1518---18 of FIGURE 16;
FIGURE 19 is a sectional view taken along lina l9--lg of FIGURE 3;
FIGURE 20 is a perspective view of a label hold-down and guiding device and a portion of the subframe;
20FIGUR~ 21 is a view showing fragmentary portions o~
the carrier and a leaf spring before they are connected to each other;
F~G~RE 22 is a sectional view showing the mounting : structure for one side of a label roll; and 25FIGURE 23 is a view taken generally along a li~e 23 -23 of FIGURE 22.
Descri tion of ~he Preferred Embodiment Referring initially to ~IGURE 1, there is shown a label printing and applying apparatus or labeler generally 30indicated at 30 having a frame or body generally indicated at 31 which includes a frame section or body section 32 and a frame section or body section 33. The frame section 32 is f~
shown to have ~ubular posts or shafts 34', 35, 36, 37 and 3g and the body section 33 is shown ~o have yenerally tubular aligned posts 34, 35~, 35~, 37' and 38'~ Screws 3g are received in the posts 34', 35, 36! 38 and 39 and are threadably received in respective posts 34, 35', 36l and 38 ' . The frame sections 32 and 33 are mates to each other and are substantially mirror-images of each other.
A subframe generally indicated at 40 is shown to include subfr~ne sections 41 and 42, The subframe section 41 is shown to have male projections 43 received in and held in a snap-fit manner in apertures 44. With reference also to FIGURES 4 and 5, the subframe sections 41 and 42 have res-pective ball tracks 45 and 46 for receiving respective rolling-contact bearing members specifically ball-bearing strips 47 1~ and 48. The subframe sections 41 and 42 have respective guideways 49 a.nd 50 and 49' and 50'. The subframe sections 41 and 42 have respective posts 51 and 52 and 51' and 52' for receiving respectîve tubular rollers 53 and 54. The post~ 51 ~nd 51' rotatably mount the ~ubular roller 53 and th~ posts 52 and 52' rotatably mount the tubular roller 54.
The subfr~me sections 41 and 42 have respective round holes S5 and 56 for rotatably mounting a feed wheel assembly generally indicated at 57. The subframe sections 41 and 42 have res-pective non-c;ircular, speciically dove-tail, recesses 58 and 58' fox receiving a holder 53. The holder S9 is of one-piece molded plastics construction and includes a pair of leaf springs or spring fingers 60 and 61 having a pair of res-pective sockets 62 a~d 63d The sockets are preferably open-sided and preferably extend for ~ore than 180~ but substantially 1.~ 3~
less than 3~0 so ~s to receive respective stub ends 64 and 65 of a die roller 66~ The die roller 66 has a pair of grooves 67 that correspond in contour and alignment to teeth 68 of to~thed feed wheel 69 of the assembly 57. The teeth 68 are staggered and are disposed in two annular rows. A guide plate 70 which i.s disposed between ~he ro~s of teeth 68 has oppositely extending posts 71. The posts are received in holes 72 and 73 of the respective subframe sections 41 and ~12 to confine the supporting material web S sf the.composite web C in proximity to the surface of the feed wheel 69. The subframe sections 41 and 42 have respective non-circular recesses 74 and 74' for keying end portions of a non-circular post 75 of a latch 76. A bar 76" is co~nected to the post 75 by a leaf spring 77. The bar 76" has a pair of manually engageable projections 78 and 79 which extend through res-pective openings 80 and 80' in subframe sections 40 and 41 and through respective openings 81 and 81' in the frame sections 32 and 33. Shields 82 and 83 are disposed inbound of the projections 78 and ?9. The shield 82 is disposed between ~h~ frame section 32 and the subframe section 41 and the shield 83 is disposed between ~he frame section 33 and the subframe section 42. The shields 82 and 83 serve to keep dust out of the inside of the labeler 30. The subframe sections 41 and 42 have elonga~ed recesses 84 and 84 ' .
Marginal side portions of a platen 85 are received in the respective recesses 84 and 84' and marginal ends of a de-laminator, specifically a peel roller 86, are received in the same elongate~ rec~sses 84 and 84-'. The pePl roller 86 is in direct contac~ with shoulders 87 at the ends of the marginal s.ides of the platen 8S. The shoulders 87 define an end edge of the platen 85. There is a minimum of friction between the shoulders 87 and the peel roller 86 because of minimal contact.
In addition, any non-linearity of the peel roller 86 will have lit~le or no effect bscau~e only the end portions of the peel roller a6 are contacted by the shoulders 87. It is apparent that both the platen 8 5 ~nd the peel roller 86 are captive in the same respective recesses 84 and 84'. The guideways 49 and 49' are formed in part by guides 88 and 89.
Spaced from the respective guides 88 and 89 are projections 90 and 91. A hold-down and guide member generally indicated at 32 is shown to have a hold-down ox guide member 93 which is disposed in overlying relationship with respect to the platen 85 and a direc~ion-changing guide member 94. A mounting member 911 is interlocked between guide 88 and proj~ction 90 and between the guide 89 and the projlection 91 as shown in FIGURES 1 and 20. In addition, the subframe sections 41 and 42 have posts ~5 and 95' received in a hole g6 in the member : 94O The member 94 has a plurality of ridges 97 and inter-vening grooves 98 which extend in the direction of la~el travel shown by phantom lines PL i~ FIGURE 20~
The subframe sections 41 and 42 have respective rekaining recesses 99 and 99' for receiving stub ends 100 and 101 of a brake roller lO~ of a brake 103. The roller 102 is shown to have annular grooves 104 for receiving spaced-apart O-rings 104'.
A one-piece resilient device generally indicated at 105 includes a leaf spring or spring finger 106 which is shown to be ~urved and which is integrally connected to a mounting portion 107. The subframe sections 41 and 42 have respective recesses 108 and 108' into ~hich marginal sides of the mounting portion 107 are received~ The resilient device 105 is shown to be disposed in overlying relationship with respect to label roll R adjacent the place where the composite web C is paid outO The composite web C passes over the resilient device 105 and from ~here between the roller 102 and brake surfaces 109 and 109'. The brake 103 also includes a plurality of separate spaced-apart leaf spsings 103', specifically two, which are in contact with ~h~ O-rings 104' of the :eoller 102 at spaced apart locations. The use of at least two such springs 103' facilitates reliable braking in spite of manufacturing variations.
The frame 31 has a handle generally i~dicated at 110 and includes handle portions 111 and 112. The posts 37 and 37~ are disposed at the outer end portion of the handle 110.
; A manually operable actuator generally indicated at 113 is shown to include a lever 114 having a hole 115. The posts 37 and 37' are received in opposite endsl o~ the hole 115 to pivotally mount the actuator 113. The actuator 113 is shown ~ to include a pair of spaced-apart gec~r sections or segmen~tal gears 116 and 117. The ~ear sections 116 and 117 mesh with respective years 118 and 119 rotat~bly mounted on an axis A'.
A pxint head generally indicated at 120 includes a pair of racks or gear sections 121 and 122 which mesh with respective gears 118 and 119. A resilient device generally indicated at 123 bears against the handle 110 and 110' and against th~ inside of the actuator 113 to urge the actuator 113', the feed assembly 57 and the print head 120 to their initial or rest positions as shown in FIGURE 3. The resilient device 123 is shown to include a compression spring 124 which urges sections 125 and 126 to extended positions with respect to each other.
~ f~
The print head 120 is shown to have two sets of printing members 127 and 128 ~FIGURES 1, 3 and 6) for printing two lines of data on a label L. The lines are printed in fields F and F' disposed on opposite sides of the hold-down member 93. Each line of printing members 127 and 128 has selectively manually settable selectors 129 and 130 so tnat each line can print th~ selected data on the label ~. The print head 120 also has a pair of tracks 131 and 132 co-operable with respective tracks 45 and 46 of respective subframe sections 41 and 42. The ball bearing strip 47 is in rolli~g contact with and between ~he tracks 131 and 45 and the ball bearing strip 48 is in rolling contact wi~h and between the track~ 46 and 132. Accordingly, the print head 120 is mounted for movement into and out of cooperation with the platen 85. The racks or gear sections 121 and 122 are shown to be straight as are the tracks 45, 46, 131 and 132 so that the print head 120 moves in a straight line as is preferred.
With reference to FIGURES :L4 and 15, the feed assembly 57 is shown to include th~ :Eeed wheel 59 and a drive wheel, specifically ratchet wheel 133 having teeth 133' disposed in an annular arrangemen~. The feed wheel 69 and the ratchet wheel 133 are shown to be selectively mova~le with respect to each other. The feed wheel 69 is shown to have an a~nular rim 134 which .is connected to a tubular hub portion or projection 135 by a web 136. The tubular portion 135 ha~ an open end 137 and a closed end portion 138. The tubular portion 135 is shown to be rotatably mounted in an annular hole 139 in the subframe section 41. A projection or retainer 14~ joined to the end portion 133 extends in the axial direction. The ratchet wheel 133 includes a plurality, specifically three, spring fingers 142 having respective f~
proj~ctions or teeth 143~ The spring fingers 142 extend through elongated slots or holes 144 in the web 1360 When the ratchet wheel 133 is assembled onto the feed wheel 69, the projections initially cam the ~pring fingers 142 inwardl~
and as the proje~tions 143 pass through the holes 144, thPy snap radially outwardly so that the ratchet wheel 133 is coupled in assembled relationship to the feed wheel 59 ~or limited rotational movement. The ratchet wheel 133 is thereore adjustable to a limited extent as limited by the length of the holes 144. The ratchet whe~l 133 has a clutch me~ber 145 with an inner surface beveled witn respect to a~is A' which is provided with a plurality of small closely spaced teeth 146. A ~lutch member generally indica ed at 147 is shown to have a plurality of mating teeth 148 disposed on a bevel for cooperation with th~ teeth 146 of the clutch mem~er 145. The clutch member 147 has tubular portions 1~9 and 150 which extend in opposite directions. The tubular portion 149 has a closed end portion 150' with a coin slot 151. A
~hree-lobed seat 152 is joined to the end portion 150'. The outer surface of the tubular portion 150 is spline~, havin~
what is illustxated as heing three splines 153 which are received in a splined hole 154 in the tubular portion 135.
The splin d hole has spline grooves 155. Accordingly, the clutch member 147 is key~d against rotation with respect to the eed wheel 69 but is slid~ble axially with respect to the feed wheel 69. The conn~ction between the clutch mem~er 147 and the feed wheel 69 is considered to be a splined connection.
A compression spring 156, received within the tuhular portions 135, 149 and 150, bears at its opposite ends against the end portion 138 and the seat 152. The projection 140 serves to locate and retain the spring 156 approximately axially disposed within the feed wheel 69. The position of the clutch members 145 and 147 relative to each other can be varied by tne user c by s.imply inserting a coin in~o the slot 151 and exerting an .Lnward for~e to compress the spring 156, and as soon as the teeth 146 and 148 of the respective clutch members 145 and 147 are out of clutching ngagement, the user can rotate the tubular portion 149 and hence the clutch mem~er 147 and move it to a different selected position with respect to the clutch member 14S. Rotation o~ the clutch member 147 causes simultaneous rotation of the eed wheel 69 because o the splined connection. As soon as the user releases the force on the end portion 150', the spring 156 returns ~he clutch member 147 into clu~ching engagement with the clutch member 145.
The gear 118 is shown to be rotatably mounted on the projection 135 between the frame section 32 and the subframe section 41. The frame secti.on 32 has an annuLar boss 157 which is shown to be out of contact with the tubular portion 135 but in contact with the c~ear 118. Accordingly, the gear 118 is captive between the ~;ubframe section 41 and the boss 157. The gear 119 includes an annular rim lS8 with teeth 159 at its periphery. A web 160 is joined to one side of the rim 158 and to a tuhular hub portion 161. The hub portion 161 is rotatably mounted on the tubular portion 149.
The web 160 abuts the t2rminal end 162 of the ratchet wheel 133 and the tubular portion 161 abuts the end of an annular flange 163 of the frame section 33. Neither ~he fr~me section 33 nor its flange 163 contacts the tubular portion 149. Accordingly, the gear 119 is held captive betwe~n the ratch~t wheel 133 and the flange 163. It is apparent that the eed assembly 57 is mountad to the subrame 40 wnich in turn is mounted by the frame 31. The adjus~ment is made from only one side of the 30c~
frame 31 without the need to shift the feed or drive wheels re.lative to each other. The gear 119 carries a pawl unit generally indicated at 164. The we~ 160 has a hole or aperture 155. The pawl unit 164 has an integrally fo~med snap pro-jection generally indicated at 166 which includes a split pivot or post 167 and projections 168 with beveled cam faces 169. In the position shown in ~IGURE 17, the pivot 167 rotatably mounts the pawl unit 164 to the gear 119 and the projections 163 prevent the pawl unit from being separated from the gear 119. The cam faces 169 facilitate connecting the pawl unit 164 to the gear 119. In assembling the pawl unit 164 onto the gear 119, the cam faces 169 are inserted ` into the hole 165, and by pushing the pawl 164 fuxther into the space within the rim 158, the pawl 164 is coupled for pivotal movement as shown in FIGURE 170 The pawl unit 164 includes a pawl 16~' having an integral projection or post 170 which can move to a limited extent. in a slot 171. The projection 170 can cooperate with a stop face 172 to limit the travel of the pawl 164'. Without a means to limit the pivota~ movement of the pawl 164' it wo~ld be more difficult to assemble the pawl unit 164 with the ratchet wheel 133 beca~se the pawl unit 164 could assume any of a wide variet~ of positions. Once the pawl unit 164 is assembled into coopera~
tive re~ationship with respect to the ratchet wheel 133, tne ratchet wheel 133 holds the pawl unit 164 in a position in which the projection 170 is out of contact with the stop face 172~ However, if the gear is disassembled so that the pawl 164 is moved out o contact with the ratchet wheel 133, the stop face 172 again cooperates witn the post 170. Formed integrally with the pawl 164' is a leaf spring or spring finger 173. The lea~ spring 173 is connected to the pawl 164l adjacent the pawl tooth 174 and the other end portion Doc ~ ?~
of the leaf spring 173 contacts the underside of the rim 158.
: The spring 173 urges the pawl tooth 174 into th~ path of the teeth 133'. It :is seen that the pawl unit 164 i5 disposed : almost entirely within the space defined by the rim 158.
When the user actuates the actuator 113, the gear segments 116 and 117 rotate gears 118 and 119 which move the print head 120 lnto printing coopexation with the platen 85, and the pawl tooth 174 moves into position to coopera~e with the next tooth 133' on the ratchet wheel 133. When the user releases the actuator 113 the resilien~ device 123 urges the actuator clockwise as viewed in FIGURE 3 to return the print head 120 to its initial position shown in FIGURE 3 and to drive the pawl 164' to advance the ratchet wheel 113 and hence the feed wheel 69.
With reference especially to FIGURES 1, 22 and 23, the label roll R is shown to be mount/sd for rotation on hub members 175 and 176. The hub members 175 ~nd 176 ~re mounted on leaf springs 41' and 42' ~ormed integrally with subframe sections 41 and 42. The hub members 175 and 176 are identical.
Hence, only the hub mem~er 175 will be discussed in detail.
The hub member 175 is generally disc-shaped and has an annular hole 177. The leaf springs 41' has an annular flange 178 received in the hole 177 for rotatably mounting the hub member 175. The hub member 175 is retained on the flange 178 ~y a retainer generally indicated at 179. The retainer includes an annular disc shaped portion 180 and a split sha~t or post 181 having a pair of projections 182~ The sha~t 181 can be inserted through a hole 183 to ~he position shown in FIGURE 22 and the projections 1~2 hold the retainer 179 in 3 the assembled position. A pair of identical discs or side plates 184 and 185 are used to support the sides of the roll R so that the roll R does not telescope. The discs 184 and 185 can be assembled onto the apparatus even aftex the retainers 179 are in place. The disc 185, for example, has a pair of holes 186 and 187 which communicate with each other at a gap 188. The gap 18~ is de~ined by projections 189. The hole 186 extends through more than 180 but substantially less than 360. The hole 187 is at least slightly larger in diameter than the outside diameter o~ the hub member 175.
The hub member 175 can be inserted through the hole 187 and thereupon the disc 184 can be shifted until a boss 190 on the hub member 175 deflects the projection 189 and is received in the hole 186. The disc 184 is composed o~ a resilient material, preferably a thin sheet of transparent plastics material. The disc 184 can be assembled onto the apparatus after the hub member 185 and the retainer 179 are in their assembled position, even though the outer periphery of the disc 184 is continuous.
With reference to FIGURES 1, 3, and 6 through 9,
2~ ther~ is shown a movable body section or cover g~nerally indicated at 191 for mounting an inking mechanism senerally indicated at 1920 The cover 191 is pivotally mounted on the posts or shafts 34 and 34'. Th~ post 34 together with ~he post 34' can be considered to be a post or shaft. The cover 191 is a paix of spaced side walls 193 and 194 joined by a panel 195. The section lgl has a pair of spaced apart arms 196 and 197 which are bifurcated and which have snap sockets 198 and 199~ The snap sockets 198 and 199 have aligned sockets 200 which are annular in configuration and which ex~end through more than 180 but substantially less than 360 as shown. The sockets 200 are axially aligned and can receive the respective posts 34 and 34'. It is apparent ~hat the cover 191 can move between a nonmally closed position shown in FIGURE 3 and an open position shown in FIGURE 6. The section 191 can be easily assembled onto the posts 3~ and 34' and ~he user can remove the entire cover 191 and replace the entire inking mechanism, if desired. The panel 195 has a pair of slots or cu.outs 201 and 202 to enable the knobs 129 and 130, which are part of the print head 120, to ~o~e as the print head 120 moves between the initial or rest position shown in FIGURE 3 and the printing position in which the print head 120 cooperates with the platen 85. The cover 191 can be readily latched in ~h~
closed position by latch assem~ly 76. The assembly 76 is formed in part by projections 204 on the cover 191 which have respective cam faces 205 which terminate at shoulders 206.
The asse~ly 76 is also formed in part by the latch 76', When the cover 191 is moved to the closed position, the cam faces 205 contact cam face 207 on the bar 76~ thereby causing the leaf spring 77 to bend as the bar 76" moves generally to the right as shown in FIGURE 3. When the shoulders 206 have cleared the cam ~ace 207 they move into underlying relation-ship with respect to the bar 76" and the leaf spring 77 returns the bar 76" to the position shown in FIGU~E 3. The cover 191 is now latched in the closed position. To unlatch the latch asse~bly 76, the user manually engages the projections 78 and 79 and moves them rearwardly away from the front of the apparatus 30. When the shoulders 206 are cleax of tne bar 76" the cover 191 can be pivoted to the open position.
Th~ cover 191 has a pair of dove-tail slots 208 and 209. The slots 208 and 209 can slidably receive mating dove-tail beari~g blocks 210 and 211. The bearing blocks have respective aligned holes 212 and 213. ~hen ~he blocks 210 and 211 are slid into their respective slots 208 and 209 shallow projections 214 and 215 respectively project slightly into the respective holes 212 and 213~ There i5 enough resiliency in the materials of which the cover 191 and the bearing bloc~s 210 and 211 are composed to let the bearing ~locks 210 ~nd 211 slide into place to a position in which the pro~ctions 214 and 215 extend into respective holes 212 and 213. ~n inker body or carrier generally indicated at 216 and shown in considerable detail in FIGUPES 10 and 11 has a pair of side members 217 and 218 and a pair of transverse members 219 and 220. Arms 221 and 222 are connected to the respective side members 217 and 218. The arms 221 and 222 have respective aligned holes 223 and 224 ~or receiving respective stub ends 225 and 226 of ink roller 227. The side members are roughened as indicated at 228 and 229. ~hen it is desixed to remove the ink roller 227 the side members 217 and 218 are grasped by and between the thumb and index fingers at the roughening 228 and 229 and squeezed so that the arms 221 and 222 spread apart. The stub ends 225 and 226 will accordingly fall out of the respectiv~3 holes 223 a~d 224 and a new ink roller 227 can be mounted to the arms 221 and 222 by simply s~ueezing the side members 217 and 218 to spread the arms 221 and 222 to receive the stub ends 225 and 2260 The sid~ members 217 and 218 diverge outwa~dly and h2ve o~twardly extending aligned mounting portions 230 and 231, on arms 230' and 231', received in the holes 212 and 213.
The mounting portions 230 and 231 are received in the res-pective holes 212 and 213 of bearing blocks 210 and 211 while the bearing blocks 210 and 211 are slid into slots 208 and 209. Thereafter the carrier 216 is swung into the position shown in FIGURE 3. In this position the arm 230' is disposed for movement between the surface 208' and interference member 201' on the panel 135 and the arm 231' is disposed for movement between the surface 209' and interference member 202' on tne panel 195 so that the carrier 216 cannot be disconnected from the cover ~ection, as when the labeler 30 is dropped. With reference to FIGURES 1 and 3, a spring member generally indicated at 232 includes a leaf spring or spring finger 233, S a transverse connector or me~ber 234 disposed at one end portion of the leaf spring 233, a mounting portion 235 disposed at the other end portion of the leaf spring 233, and ano~her mounting portion 236. The mounting portion 236 is bifurcated and receives an end portion of the panel 195. The mounting portion 235 has an elongated slot 237 which receives the post 34 to provide a pin-andoslot connection. The mounting portion 235 is disposed between rolls 238 and 239 of an applicator roll 2~0. As best shown in FIGURE 12r the rolls 238 and 239 straddle the mounting portion 235 and the arms 196 and 197 straddle the rolls 238 and 239 and the molmting portion 235.
The transverse member 234 is received in aligned elongated holes 241 ~nd 242 of a pin-and-slot connection. The transverse member 234 has oppositely extending transverse portions 243 and 244. The transverse portion 243 extends into the hole 23 241 and the transverse portion 244 extends into the hole 242.
The transvexse portion 243, for example, can be ins~rted into the hole 241 while the transvexse member 234 is canted with respect to the axis of the holes 241 and 242 and moved into position and thereafter the other transverse por~ion 234 is moved into alignment with the hole 242. When ~he transverse portions 243 and 244 are received in respective holes 241 and 242, the spring 232 can be brought to its normal position in which the sides of the spring 232 are disposed between opposed shoulders 245 and 246 which limit the lateral movement of the transverse member 234. The transverse portions 243 and 2~4 are long enough to prevent them from coming out of the respective holes 241 and 242 when the shoulders 245 and 246 cooperate with the sides of the spring 232.
In the initial ox rest position of the print head 120, ~he spring member 232 urges the carrier 216 to the solid line position shown in FIGURE 3. The carrier 216 has a pair of spaced-apart snap sockets 247 and 248 (FIGURES 10 and 11) having aligned openings 249 and 250. Stub ends 251 and 252 (FIGURE 1) of a roller 253 are received in respective openings 249 and 250. The openings 249 and 250 extend through more than 180 but substantially less than 360 so that the stub ends 251 and 252 can be snapped into them. The print head 120 carries a cam generally indicatecl at 254 with a dwell portion 255, a relatively steep ramp 256, and another dwell portion 257. The ink roller 227 is ~;hown to b~ spaced fxom the print head 120 in FIGURE 3, when the roller 253 bears against the dwell portion 255~ When the print head 120 moves toward the ink roller 227, the endmost printing members 127 and 128 contact ~he ink roller ~27. About that time, with continued movement of the print head 120, the roller 253 rolls in contact with the ramp 256 to pivot the carrier 216 clocXwise as viewed in FIGU~E 3. r.~hen the print head 120 is in printing coopQration with ~he labal L on the platen 8S, the carrier 216 and the ink roller 227 which it carries are in the position indicated by phantom lines PL'. When the print head 120 is in printing cooperation with the label L, the roller 253 is in contact wi.h the dwell portion 257. As the print head 120 is returned to its rest or initial position, the roller 253 moves out of contact with the dwell portion 257, thereafter the roller 253 rolls along the ramp 256, and thereafter the roller 253 rolls onto the dwell portion 255 .= 1 4 ~
until the carrier 216 and its rollex ~27 are returned to the initial position. Because the carrier 216 moves on fixed pivots, a lost-motion connec~ion is provided by ~he elongated holes 241 and 242 and a lost~motion connection is also pro~ided by enlarged hole 237 in the mounting portion 23S.
In operation, a label roll R is loaded onto the hub members 175 and 176 between the di cs 18~ and 185. The xoll R consi~ts of the composite web C composed of a web of supporting material S to which the labels L are releasably adhered by pressure sensitive adhesive A. The leading marginal end of the composite web C is passed over the resilient device 105, and between the brake roller 102 and ~he surfaces 109 and 109'. It is preferred to squeeze the actuator 113 slightly while the leading maxginal end is being threaded through the labeler so that the print head 120 is moved away from the initial position to release the brake 102 and so that the brake roller 102 doas not exert a braking force on the composite web C. The leading end portion o the composite web C is passed alon~ the guideway provided by guides 49 and 49'. The compo~ite web C then pa~ses out of the front o the apparatus adjacent the roller 54 and thereupon the user inserts the composite web C betw2en the platen 85 and the hold-down member 93. The guide portion 94 guides the composite web out of the apparatus to a position where it can be g~asped by the user who will pull on the composite web C
to draw several additional inches off the roll R. The com-posite web C is thereupon passed around the roller 53 t and with the actuator 113 preferably in the fully squee~ed or fully operated position, the leading end of ~he composite web C
is inserted between the die roller 67 and t~e feed wheel 69.
When the actautor 113 is rel~ased, the teeth 68 break through a frangible portion FS on the supporting material we~ S
and the related frangible portion FL of the label material L.
Repeated actuatiDn of the actuator 113 will cause any slack ta be taken out of the web S and thereupon labels L will be dispensed into label applying relationship wi~h the applicator 240 as shown in FIGURE 3. Xn this position the trailing marginal end of the leading label L is still adhered to the web S. When the user applies the label L, the label L being applied is pulled from the web S. The brake 103 is effective to prevent the composite web C from being paid out of the roll R during application of a label L and an anti-backup pawl 258 ~FIGURE 1) which cooperates with the ratchet wheel 113 obviates loss of tension in the w~b S.
When it is desired to replace an ink roller 227, the user pulls on the knobs 78 and 79 to move the bar 76"
away from the shoulders 206 on the cover section 191. Tha user can thereupon pivot the cover section 191 to the open position shown in FIGURE 6. By squeezing the side me~bers 228 and 229, the spent ink roller falls out of the holes 223 and 224. A new ink roller can be inserted by squeezing the side members 228 and ~29 so that the holes 223 and 224 can receive the stub ends 225 and 226 of a fre~h ink roller. Thereupon the usex returns the cover section 191 to the position shown in FIGURE 13. The cams or cam faces 205 on the cover cooperate with the cam face 207 of the bar 76~, thereby deflecting the leaf spring 227 until the cover section 191 is latched in the position shown in FIGURE 3.
Other embodiments and mc diications of this inventis:n will sugg~st themselves to thosP skilled in the art r and all such of the~e as come within the spirit of this invention are included within its scope as bsst defined by the appended c laims .
--2~--
closed position by latch assem~ly 76. The assembly 76 is formed in part by projections 204 on the cover 191 which have respective cam faces 205 which terminate at shoulders 206.
The asse~ly 76 is also formed in part by the latch 76', When the cover 191 is moved to the closed position, the cam faces 205 contact cam face 207 on the bar 76~ thereby causing the leaf spring 77 to bend as the bar 76" moves generally to the right as shown in FIGURE 3. When the shoulders 206 have cleared the cam ~ace 207 they move into underlying relation-ship with respect to the bar 76" and the leaf spring 77 returns the bar 76" to the position shown in FIGU~E 3. The cover 191 is now latched in the closed position. To unlatch the latch asse~bly 76, the user manually engages the projections 78 and 79 and moves them rearwardly away from the front of the apparatus 30. When the shoulders 206 are cleax of tne bar 76" the cover 191 can be pivoted to the open position.
Th~ cover 191 has a pair of dove-tail slots 208 and 209. The slots 208 and 209 can slidably receive mating dove-tail beari~g blocks 210 and 211. The bearing blocks have respective aligned holes 212 and 213. ~hen ~he blocks 210 and 211 are slid into their respective slots 208 and 209 shallow projections 214 and 215 respectively project slightly into the respective holes 212 and 213~ There i5 enough resiliency in the materials of which the cover 191 and the bearing bloc~s 210 and 211 are composed to let the bearing ~locks 210 ~nd 211 slide into place to a position in which the pro~ctions 214 and 215 extend into respective holes 212 and 213. ~n inker body or carrier generally indicated at 216 and shown in considerable detail in FIGUPES 10 and 11 has a pair of side members 217 and 218 and a pair of transverse members 219 and 220. Arms 221 and 222 are connected to the respective side members 217 and 218. The arms 221 and 222 have respective aligned holes 223 and 224 ~or receiving respective stub ends 225 and 226 of ink roller 227. The side members are roughened as indicated at 228 and 229. ~hen it is desixed to remove the ink roller 227 the side members 217 and 218 are grasped by and between the thumb and index fingers at the roughening 228 and 229 and squeezed so that the arms 221 and 222 spread apart. The stub ends 225 and 226 will accordingly fall out of the respectiv~3 holes 223 a~d 224 and a new ink roller 227 can be mounted to the arms 221 and 222 by simply s~ueezing the side members 217 and 218 to spread the arms 221 and 222 to receive the stub ends 225 and 2260 The sid~ members 217 and 218 diverge outwa~dly and h2ve o~twardly extending aligned mounting portions 230 and 231, on arms 230' and 231', received in the holes 212 and 213.
The mounting portions 230 and 231 are received in the res-pective holes 212 and 213 of bearing blocks 210 and 211 while the bearing blocks 210 and 211 are slid into slots 208 and 209. Thereafter the carrier 216 is swung into the position shown in FIGURE 3. In this position the arm 230' is disposed for movement between the surface 208' and interference member 201' on the panel 135 and the arm 231' is disposed for movement between the surface 209' and interference member 202' on tne panel 195 so that the carrier 216 cannot be disconnected from the cover ~ection, as when the labeler 30 is dropped. With reference to FIGURES 1 and 3, a spring member generally indicated at 232 includes a leaf spring or spring finger 233, S a transverse connector or me~ber 234 disposed at one end portion of the leaf spring 233, a mounting portion 235 disposed at the other end portion of the leaf spring 233, and ano~her mounting portion 236. The mounting portion 236 is bifurcated and receives an end portion of the panel 195. The mounting portion 235 has an elongated slot 237 which receives the post 34 to provide a pin-andoslot connection. The mounting portion 235 is disposed between rolls 238 and 239 of an applicator roll 2~0. As best shown in FIGURE 12r the rolls 238 and 239 straddle the mounting portion 235 and the arms 196 and 197 straddle the rolls 238 and 239 and the molmting portion 235.
The transverse member 234 is received in aligned elongated holes 241 ~nd 242 of a pin-and-slot connection. The transverse member 234 has oppositely extending transverse portions 243 and 244. The transverse portion 243 extends into the hole 23 241 and the transverse portion 244 extends into the hole 242.
The transvexse portion 243, for example, can be ins~rted into the hole 241 while the transvexse member 234 is canted with respect to the axis of the holes 241 and 242 and moved into position and thereafter the other transverse por~ion 234 is moved into alignment with the hole 242. When ~he transverse portions 243 and 244 are received in respective holes 241 and 242, the spring 232 can be brought to its normal position in which the sides of the spring 232 are disposed between opposed shoulders 245 and 246 which limit the lateral movement of the transverse member 234. The transverse portions 243 and 2~4 are long enough to prevent them from coming out of the respective holes 241 and 242 when the shoulders 245 and 246 cooperate with the sides of the spring 232.
In the initial ox rest position of the print head 120, ~he spring member 232 urges the carrier 216 to the solid line position shown in FIGURE 3. The carrier 216 has a pair of spaced-apart snap sockets 247 and 248 (FIGURES 10 and 11) having aligned openings 249 and 250. Stub ends 251 and 252 (FIGURE 1) of a roller 253 are received in respective openings 249 and 250. The openings 249 and 250 extend through more than 180 but substantially less than 360 so that the stub ends 251 and 252 can be snapped into them. The print head 120 carries a cam generally indicatecl at 254 with a dwell portion 255, a relatively steep ramp 256, and another dwell portion 257. The ink roller 227 is ~;hown to b~ spaced fxom the print head 120 in FIGURE 3, when the roller 253 bears against the dwell portion 255~ When the print head 120 moves toward the ink roller 227, the endmost printing members 127 and 128 contact ~he ink roller ~27. About that time, with continued movement of the print head 120, the roller 253 rolls in contact with the ramp 256 to pivot the carrier 216 clocXwise as viewed in FIGU~E 3. r.~hen the print head 120 is in printing coopQration with ~he labal L on the platen 8S, the carrier 216 and the ink roller 227 which it carries are in the position indicated by phantom lines PL'. When the print head 120 is in printing cooperation with the label L, the roller 253 is in contact wi.h the dwell portion 257. As the print head 120 is returned to its rest or initial position, the roller 253 moves out of contact with the dwell portion 257, thereafter the roller 253 rolls along the ramp 256, and thereafter the roller 253 rolls onto the dwell portion 255 .= 1 4 ~
until the carrier 216 and its rollex ~27 are returned to the initial position. Because the carrier 216 moves on fixed pivots, a lost-motion connec~ion is provided by ~he elongated holes 241 and 242 and a lost~motion connection is also pro~ided by enlarged hole 237 in the mounting portion 23S.
In operation, a label roll R is loaded onto the hub members 175 and 176 between the di cs 18~ and 185. The xoll R consi~ts of the composite web C composed of a web of supporting material S to which the labels L are releasably adhered by pressure sensitive adhesive A. The leading marginal end of the composite web C is passed over the resilient device 105, and between the brake roller 102 and ~he surfaces 109 and 109'. It is preferred to squeeze the actuator 113 slightly while the leading maxginal end is being threaded through the labeler so that the print head 120 is moved away from the initial position to release the brake 102 and so that the brake roller 102 doas not exert a braking force on the composite web C. The leading end portion o the composite web C is passed alon~ the guideway provided by guides 49 and 49'. The compo~ite web C then pa~ses out of the front o the apparatus adjacent the roller 54 and thereupon the user inserts the composite web C betw2en the platen 85 and the hold-down member 93. The guide portion 94 guides the composite web out of the apparatus to a position where it can be g~asped by the user who will pull on the composite web C
to draw several additional inches off the roll R. The com-posite web C is thereupon passed around the roller 53 t and with the actuator 113 preferably in the fully squee~ed or fully operated position, the leading end of ~he composite web C
is inserted between the die roller 67 and t~e feed wheel 69.
When the actautor 113 is rel~ased, the teeth 68 break through a frangible portion FS on the supporting material we~ S
and the related frangible portion FL of the label material L.
Repeated actuatiDn of the actuator 113 will cause any slack ta be taken out of the web S and thereupon labels L will be dispensed into label applying relationship wi~h the applicator 240 as shown in FIGURE 3. Xn this position the trailing marginal end of the leading label L is still adhered to the web S. When the user applies the label L, the label L being applied is pulled from the web S. The brake 103 is effective to prevent the composite web C from being paid out of the roll R during application of a label L and an anti-backup pawl 258 ~FIGURE 1) which cooperates with the ratchet wheel 113 obviates loss of tension in the w~b S.
When it is desired to replace an ink roller 227, the user pulls on the knobs 78 and 79 to move the bar 76"
away from the shoulders 206 on the cover section 191. Tha user can thereupon pivot the cover section 191 to the open position shown in FIGURE 6. By squeezing the side me~bers 228 and 229, the spent ink roller falls out of the holes 223 and 224. A new ink roller can be inserted by squeezing the side members 228 and ~29 so that the holes 223 and 224 can receive the stub ends 225 and 226 of a fre~h ink roller. Thereupon the usex returns the cover section 191 to the position shown in FIGURE 13. The cams or cam faces 205 on the cover cooperate with the cam face 207 of the bar 76~, thereby deflecting the leaf spring 227 until the cover section 191 is latched in the position shown in FIGURE 3.
Other embodiments and mc diications of this inventis:n will sugg~st themselves to thosP skilled in the art r and all such of the~e as come within the spirit of this invention are included within its scope as bsst defined by the appended c laims .
--2~--
Claims (9)
1. Hand-held apparatus for printing and applying pressure sensitive labels comprising: a frame having a handle and means for carrying a label roll composed of labels releasably secured by pressure sensitive adheisve to a web of supporting material, a manually operable actuator disposed at the handle, a platen mounted by the frame, a print head cooperable with the platen, the print head having means for printing two spaced apart lines of data on the labels, means for delaminating printed labels from the web, means disposed adjacent the delaminating means for applying printed labels, toothed means disposed downstream of the delaminator for advancing the web, means defining a path fox the web of labels from the label roll to between the print head and the platen, around the delaminator and to the toothed means, hold-down means in overlying relation-ship to the platen but out of alignment with the lines of printing members for contacting the labels and for maintaining the web against the platen, and means responsive to operation of the actuator for moving the print head into printing cooperation with a label adjacent both sides of the hold-down means and for moving the toothed means to advance the web.
2. Hand-held apparatus as defined in claim 1, including a guide member connected to the hold-down means for guiding the printed labels into label applying relation with respect to the label applying means.
3. Hand-held apparatus as defined in claim 1, including a guide member connected to the hold-down means for guiding the printed labels into label applying relation with respect to the label applying means, the guide member having means to reduce the contact area between the guide member and the labels.
Docket M-340-C-2-1
Docket M-340-C-2-1
4. Hand-held apparatus as defined in claim 3, wherein the contact area reducing means includes a series of ridges and intervening grooves extending in the direction of travel of the labels as they are guided by the guide member.
5. Hand-held apparatus for printing and applying pressure sensitive labels, comprising: a frame having a handle, a manually operable actuator disposed at the handle;
a subframe disposed in and connected to the frame, the subframe including a pair of mating side-by-side subframe sections and means for supporting a label roll composed of labels releasably secured by pressure sensitive adhesive to a supporting material web, a platen mounted on the subframe, a print head mounted on the subframe and cooperable with the platen, the print head having spaced apart lines of printing members movable in respective spaced apart paths for printing two spaced apart lines of data on the labels, means for delaminating printed labels from the web, means disposed adjacent the delaminating means for applying printed labels, toothed means disposed downstream of the delaminator for advancing the web, the subframe further including means defining a path for the web from the label roll, to between the print head and the platen, around the delaminator and to the toothed means, a hold-down member connected to the subframe and disposed in overlying relationship to the platen but out of alignment with and between the paths of the printing members for contacting the labels and for maintaining the web against the platen, and means responsive to operation of the actuator for moving the print head into printing cooperation with a label adjacent both sides of the hold-down member and for moving the toothed means to advance the web.
Docket M-340-C-2-1
a subframe disposed in and connected to the frame, the subframe including a pair of mating side-by-side subframe sections and means for supporting a label roll composed of labels releasably secured by pressure sensitive adhesive to a supporting material web, a platen mounted on the subframe, a print head mounted on the subframe and cooperable with the platen, the print head having spaced apart lines of printing members movable in respective spaced apart paths for printing two spaced apart lines of data on the labels, means for delaminating printed labels from the web, means disposed adjacent the delaminating means for applying printed labels, toothed means disposed downstream of the delaminator for advancing the web, the subframe further including means defining a path for the web from the label roll, to between the print head and the platen, around the delaminator and to the toothed means, a hold-down member connected to the subframe and disposed in overlying relationship to the platen but out of alignment with and between the paths of the printing members for contacting the labels and for maintaining the web against the platen, and means responsive to operation of the actuator for moving the print head into printing cooperation with a label adjacent both sides of the hold-down member and for moving the toothed means to advance the web.
Docket M-340-C-2-1
6. Hand-held apparatus as defined in claim 5, including a guide member connected to the hold-down member for guiding the printed labels into label applying relation with respect to the label applying means.
7. Hand-held apparatus as defined in claim 6, including a mounting portion keyed to the subframe and connected to one end portion of the hold-down member, and means for keying the guide member to the subframe.
8. Hand-held apparatus as defined in claim 5, including a guide member connected to the hold-down member for guiding the printed labels into label applying relation with respect to the label applying means, the guide member having means to reduce the contact area between the guide member and the labels.
9. Hand-held apparatus as defined in claim 8, wherein the contact area reducing means includes a series of ridges and intervening grooves extending in the direction of travel of the labels as they are guided by the guide member.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000408200A CA1176104A (en) | 1977-04-25 | 1982-07-27 | Hand-held labeler |
| CA000457806A CA1192781A (en) | 1977-04-25 | 1984-06-28 | Hand-held labeler |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US790,519 | 1977-04-25 | ||
| US05/790,519 US4116747A (en) | 1977-04-25 | 1977-04-25 | Hand-held labeler |
| CA000365165A CA1120780A (en) | 1977-04-25 | 1980-11-20 | Hand-held labeler |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000365165A Division CA1120780A (en) | 1977-04-25 | 1980-11-20 | Hand-held labeler |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000408200A Division CA1176104A (en) | 1977-04-25 | 1982-07-27 | Hand-held labeler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1139984A true CA1139984A (en) | 1983-01-25 |
Family
ID=25669190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000388469A Expired CA1139984A (en) | 1977-04-25 | 1981-10-21 | Hand-held labler |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1139984A (en) |
-
1981
- 1981-10-21 CA CA000388469A patent/CA1139984A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |