JPS5921020Y2 - Bookbinding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bookbinding device, and more particularly to a device capable of attaching an adhesive tape to a group of laminated sheets having a thickness within a predetermined thickness range.

Due to the relative movement between the stack of sheets and the spaced apart platen,
driving the adhesive tape between platens by a group of sheets;
Bookbinding devices such as those described in US Pat. No. 3,531,358 are known.

In such devices, the adhesive tape is then pressed against the stack of sheets by moving the platens closer together.

The method of adhering the adhesive tape to the stack of sheets by moving the platens close to each other often causes the tape to move or deform and not adhere uniformly to the stack of sheets, resulting in pockets or undesirable wrinkles. .

Creases are a serious problem because they weaken the adhesive and impair the appearance of the bound book.

Accordingly, one object of the present invention is to provide an improved apparatus for securing adhesive tape to stacked sheets.

Another object of the invention is to provide a binding device for binding books having a thickness within one of various predetermined thickness ranges.

Still another object of the present invention is that the maximum spacing between the platens used for fixing the adhesive tape to the laminated sheet group is determined by the thickness of the sheet group, and the space between the platens is reduced to a minimum to attach the tape to the laminated sheet group. It is an object of the present invention to provide a bookbinding device that fixes the book.

As will be apparent from the examples described below, the space provided by the invention between the platens is just sufficient to hold the tape pushed into this space by the laminate sheets adjacent to this space, and thus , when it is desired to press the tape against the sheets by the platen, the movement of the tape by the platen is minimal.

Undesired tape movement or deformation is minimized in this device, which is a feature of the invention.

In short, the present invention provides an apparatus for applying an adhesive tape having a width determined by the thickness range to which the thickness of the sheet group corresponds to a group of laminated sheets having a thickness within one of several thickness ranges. provide.

Structurally, the device includes a frame, a pair of support plates movably mounted to the frame, a pair of caliper members each coupled to a separate support plate,
Means for moving the support plates to compress the group of laminated sheets to be bound with a predetermined force by bringing the caliper members close to each other, and preventing the support plates from separating from each other as soon as the group of laminated sheets is compressed by the above force. a pair of adhesive sheet guide members, each coupled to a separate support plate, for gluing and binding the edges of the stack of sheets according to the distance between the clutched support plates; means for moving the adhesive tape guide member into a position to support an adhesive tape of a width suitable for the application, a pair of mutually opposed platens each being slidably mounted on a separate support plate; The adhesive tape supported by the adhesive tape guide member is driven to the platen portions spaced apart and facing each other along with the edge of the group of laminated sheets, the maximum distance between the platens being determined by the distance between the support plates. This eliminates the need for a driving means for smoothly wrapping the tape around the edge and a fixing means for fixing the adhesive tape to the stack of laminated sheets for bookbinding.

Other objects and features of the invention will become apparent from reading the following description with reference to the accompanying drawings.

FIG. 1 is a perspective view of a bookbinding apparatus 10 implementing the present invention.

This apparatus 10 can bind a group of laminated paper sheets by applying adhesive tape of appropriate length and width to the edges.

In the following, we will first functionally describe the method of operation of the device 10,
We will then discuss in detail the structures suitable for performing each function.

First, FIG. 1 and FIG. 3 will be explained.

In operation of the apparatus 10, the power switch 11 is turned on and the platens 12-14 within the apparatus housing 15 are heated by heating coils (not shown).

A monitor device (not shown) measures the temperature of the platen, and when the platen temperature reaches a predetermined temperature, an indicator light 16 turns on, indicating that the device is ready to enter the bookbinding cycle.

To bind a book, a stack of paper sheets 17 to be bound is first placed between sheet guide members 18 and 19 at the leftmost end of elongated slot 20 in housing 15 (indicated by dotted lines in FIG. 1).

In this position, the seat is attached to the movable plate 21 in the housing.
It is above.

Knob 22 is connected to the sheet guide by a slipping clutch and linkage (more on this later) so that turning the knob in the direction of arrow 25 moves sheet guides 18 and 19 toward each other. and attach it to each sheet guide member 18 and 19.■
A pair of caliper members 23 and 24 abut the sheet group 17 and compress the sheet group.

Thereafter, due to the resistance exhibited by the compressed sheet group and the use of a slipping clutch, the distance between the sheet guide members 18 and 19 and between the caliper members 23 and 24 remains the same even when the knob is turned further in the direction of arrow 25. Almost no change.

Seat guide members 18 and 19 and caliper members 23 and 2
At the same time as the arrows 25 and 4 of the knob 22 move toward each other,
The heating platens 12 and 13 (
(see Figure 3) approach each other, and as a result, the platen 12
The spacing between and 13 is determined by the thickness of the compressed laminate sheets.

This is important because by determining the distance between the platens 12 and 13 in this way, groups of laminated sheets of various thicknesses can be bonded and bound with only a slight movement of the platens. That should be obvious.

A two-piece clamp for clamping stacked paper sheets 17 when knob 22 is turned in the opposite direction while sheet guide members 18 and 19 and platens 12 and 13 are held in the above positions by a linear clutch (described in more detail later). Means 27 and 27a are moved into a clamping position and adhesive tape guides 28 and 29 are moved into a position (see FIG. 3) for receiving the appropriate length of adhesive tape 30.

As will become apparent, in this embodiment there are three such locations for receiving adhesive tapes of three selectable widths, each having a width within a corresponding predetermined range. It can be used to bind a group of laminated sheets together into a book.

After the laminated sheets are clamped as described above, they are moved to the right end of the elongated thrower (20) in the direction of arrow 32 in FIG. The indicator light 31 is illuminated when the cartridge 57 having the adhesive tape is in operative engagement with the device 10.

As can be seen from the cross-sectional view of the adhesive tape 30 (FIG. 2),
Adhesive tape 30 comprises a moldable substrate 33, typically of relatively hard paper stock, and adhesive layers 34 and 35.

Adhesive layers 34 and 35 have two types of heat activation (heat activation).
(activated) form a plurality of nostonop-like shapes consisting of adhesive molds.

The heat activated adhesive can be either a low tack or a high tack adhesive.

Low tack adhesives are adhesives that melt or become flowable upon heating and thus exhibit a high degree of surface wetting with the application of very little pressure or heat.

A typical low tack adhesive is a mixture of about 80% by weight ethylene/vinyl acetate copolymer and about 20% by weight rosin acid ester in a 90% ethylene:vinyl acetate ratio.

High tack adhesives consist of adhesives that retain a high degree of viscosity when heated and are somewhat non-flowing so that a certain amount of heat must be applied to wet the surfaces to be bonded.

A typical strong adhesive is a mixture of polyethylene, rosin acid, and metal carboxylic acid salt in a weight ratio of 80:10:10.

Strong tack adhesives have the advantage of providing a high level of bonding strength immediately upon application of heat and pressure.

In contrast, low tack adhesives have the advantage that when heat and pressure are applied, the adhesive easily flows or penetrates into the edges of the sheets to be bonded.

Adhesive tape 30 preferably has a base material 33 coated with a strong adhesive 35, and a weakly adhesive adhesive 34 applied along the center line of the base in a relatively thicker layer than the strong adhesive layer. is painted.

Typically, the width of adhesive layer 34 is approximately equal to or slightly greater than the total thickness of the compressed laminate sheets to be bonded.

A more detailed description of adhesive tapes can be found in US Patent Application No. 196,446, US Pat. No. 3,853,489.

Referring again to FIG. 1, the automatic binding cycle begins when a suitable adhesive tape is placed in the cartridge and the binding activation button 36 is pressed.

Specifically, when the button 36 is pressed, the main drive motor 37 (
3) is energized and the main drive shaft 38 of the device rotates.

A suitable linkage 40 is actuated by a cam 39 on the main drive shaft to move the clamping means 27 and 27a to the fourth
Move the sheet group 17 in the direction of arrows 41 and 42 in the figure.
is clamped.

For this purpose, the sheet guide member is provided with suitable holes through which portions of the clamping means act.

After clamping, the main drive motor 37 is connected to the timing circuit 2.
6 automatically deenergizes the tape 30 for a predetermined period of time, and an automatic tape inserter such as that described in U.S. Patent Application No. 392,583 and U.S. Pat. Allow parts to be inserted.

By reenergizing the motor 37, the cam 4 attached to the shaft 38
3 drives the link mechanism 44 to rotate the clamping means and sufficiently lift the sheet group 17 from the movable plate 21, so that the plate 2 attached to the shaft 38 and the link mechanism 46
The plate 21 can be retracted from the seat holding position by a cam 45 connected to the seat 1.

Thereafter, the sheet group 17 can be plunged towards the heated platens 12-14.

In FIG. 5, the plate 21 is retracted (in the direction of arrow 50), the sheet group 17 is lifted and the next sheet group is moved downward (see arrows 51-53), while at the same time the cam 48 on the shaft 38 and the linkage 49 brings platens 12 and 13 closer together (see arrows 54 and 58).
.

Cams 39 and 48 bring the sheets into contact with tape section 47 and bring tape section 47 into heated platen 12.
and 13.

Tape portion 47 is maintained in contact with the upper surfaces of heated platens 12 and 13 for a sufficient period of time to preheat and soften.

After the tape portion 47 is heated, the sheet group is slightly lifted by the action of the cams 43 and 48, and the platens 12 and 13 are separated sufficiently to smoothly receive the compressed sheet group and the thickness of the tape portion. become.

The sheet group 17 is then pressed down (see FIG. 6), and the tape portion 47 is heated and urged resiliently into contact with the mounting bottom platen 14.

Platens 12 and 13 are then pressed against the tape portion for a sufficient period of time to soften the highly tacky adhesive and secure the tape portion to the sides of the sheet group.

After softening the strong adhesive, platens 12 and 13
to a certain extent and continue heating the low-tack adhesive for a predetermined period of time.

During this time, the die drive motor is stopped by the timing circuit 26.

The main drive motor is then re-energized and platens 12 and 13
is fully opened by the cam 48 and link mechanism 49.

The bound book is then lifted slightly upwards from Play I 21, the plate 21 is returned to the book supporting position, and the book is lowered onto the plate.

The clamping means 27 and 27a are then retracted from their book engagement position and the main drive motor is deenergized.

The book can now be removed from the binding device.

It should be noted that when pressing down on the group of sheets, the clamping means abut against abutment means 55 and 56 attached to tape guide members 28 and 29, respectively.

Furthermore, the abutment means 55 and 56 are inclined to limit the degree of depression in proportion to the thickness of the sheet group.

Because of this mechanism, platens 12 and 13 always secure the ends of the tape sections to the sides of the sheets.

Therefore, a tape portion of a single width can be used for bonding and binding a group of laminated sheets within a predetermined thickness range.

The device 10 is structurally comprised within the housing with tie bars 62-65.
and a frame (eighth
(see figure).

In FIGS. 8 and 9, each tie bar 62 and 63 includes a pair of flanged bearings 70 and 71 (only one of each village is shown), and bearings 70 and 71 are connected to a driven plate supporting a horizontal rack 73. 72 is supported.

The rack 73 has a gear 74 rotatably mounted on a shaft 78 connected to a frame plate (not shown).
and the gear is on the rack.

The plate 72 is held down by a gear 74 and a flanged bearing 67 that is supported by a bracket (not shown) connected to the tie bar 62 and that engages with the upper surface of the plate 72.

Gear 74 supports a driven plate 76 with tie bars 64 supporting a pair of flanged bearings 75 (only one shown), and a horizontal rack 77 on the underside of plate 76 that engages gear 74. There is.

To keep the rack 77 engaged with the gear 74, each of a pair of brackets 79 (only one shown) connected to the tie bar 63 and the shaft 78 connects a flanged bearing 80 (only one shown) to the drive plate 76. It is rotatably supported on the upper side.

Further, a flanged bearing 68 supported by a bracket (not shown) connected to the tie bar 64 cooperates with a flanged bearing 75 to suppress the plate 76.

Plates 72 and 76 each include a support plate 84.
and 83 in a horizontal plane.
2 is attached.

The plates 83 and 84 also support sheet guide members 18 and 19, respectively (see FIG. 3).

Thus, as support plate 83 moves in the direction of arrow 41, rack 77 rotates gear 74, which moves sheet guide member 19 closer to sheet guide member 18.

When the support plate 83 moves in the opposite direction of arrow 41, the sheet guide members move away.

Transverse movement of plates 72 and 76 relative to arrow 41 is shown in one set of flanged bearings engaging the plate ends and in the other set with flanged bearings not shown. This is prevented by the engagement of the plate with the edge of the plate.

Support plate 83 is connected to means 86 for adjusting the horizontal spacing between plates 83 and 84.

In FIG. 10, the adjusting means 86 is
0 and 61 (partially shown).

Rod 88 rotatably supports a radial link 89 having a pin 90 parallel to rod 88 and hole 91 .

The rod 88 also supports a ratchet 92 having a horizontally elongated hole 94 in the diametrical direction and a pin 93 projecting through the hole 91 with a gap therebetween.

An offset link 95 slidably projects through a hole 98 in an elbow-shaped member 99 fixed to the support plate 1-83 by a pin 90 or the like with a spring 100 and is connected to the lug 22 by a slip clutch 96. It includes a cylindrical pin 97 that projects horizontally and slidably through the horizontally elongated hole 94 .

Thus, rotation in the direction of arrow 25 causes pin 97 to slide through oblong hole 94, causing ratchet 92 to rotate and pin 93 to rotate.
contacts the link 89 and drives this link.

As a result, the link 89 rotates and the plate 83 is moved by the arrow 41.
Drive linearly in the direction of.

The frame plate 61 rotatably supports the claw 101,
Pawl 101 is pressed against teeth 102 on ratchet 92 by a tension spring 103 connected to the pawl and plate 61.

As a result, when the knob 22 is turned in the direction of the arrow 25 and then in the opposite direction, the pin 97 rotates the ratchet 92 and the tooth 1
One front end of 02 engages with pawl 101.

Thereafter, when the clutch 96 is further turned in the opposite direction, the clutch 96 slips.

When ratchet 92 rotates in the opposite direction, pin 93 moves in hole 91 but link 89 does not rotate.

This is because the width of the hole 91 is larger than the distance that the pin 93 moves until one tooth and the pawl 101 engage.

Adjustment means 86 includes a clutch 87 .

The clutch 87 is supported by a fixed mounting block 105 on one side of the frame plate 61.

The other side of the frame plate 61 supports a bracket 106 in which holes 107 are located (10th and 1st
3), the bracket 106 is attached to the frame plate 6
It has a hole 107 aligned with hole 108 of No. 1 so as to rotatably support a cylindrical link 109 projecting through holes 107 and 108.

One end of the link 109 is fixed to a handle 110 for rotating the link, and the other end 111 is fixed to a joint 112 projecting diametrically from the link.

A cylindrical rod 113 protrudes from both ends of the joint 112.
and 114.

Rods 113 and 114 are parallel to link 109 and point the handle in the direction of arrow 115, as described in more detail below.
It is used to release the clutch 87 and remove the pawl 101 when turning in the direction of .

Elbow member 99 supports a pin 116 that smoothly engages a hole 117 in one end of a cylindrical rod 118 of the clutch.

At least a portion of the rod 118 is slidably mounted in a cylindrical sleeve 119 having a flange 120 at its end proximal to the hole 117 and having a plurality of spaced apart holes 1 between its ends.
There are 21.

In Figures 10, 11.12.14, the axis of the hole 121 extends radially into the sleeve and lies in a theoretical plane perpendicular to the axis of the sleeve.

Also, the distance between adjacent holes is equal, and each hole includes a tapered portion 122.

A portion of the taper serves as an abutment, and a bearing 123 that slides and smoothly enters the hole 121 is projected through the sleeve to connect the rod 11, as will be explained in detail below.
8, but prevents the bearing from penetrating into the center of the sleeve if the rod 118 is removed.

Sleeve 119 between hole 121 and flange 120
The outer surface of the cylindrical portion 1 of the hole of the cylindrical member 125
Resilient means 126 in the form of a compression spring in sliding engagement with 24 and around a portion of the sleeve abuts flange 120 at one end and end 127 of member 125 at the other end.

The bore of the cylindrical member 125 has a tapered portion 128;
The bearing 12 is aligned with the cylindrical portion 124 and diverges from the cylindrical portion as it moves away from the flange.
The diameter of 3 is greater than the wall thickness of the sleeve.

Thus, compressing the spring 126 sufficiently as desired causes the bearing to abut the rod 118 and the tapered portion 128.

End 129 of member 125 has a notch large enough to allow bearing 123 to pass through.

This notch can be used to insert the bearing into the hole 121 during clutch assembly.

To be more specific, when inserting a bare tongue, flange 12
0 towards end 127, bring one of the holes 121 under the notch, drop the bearing into the hole, and rotate sleeve 119 to align the next hole with the notch.

In this device, a bearing 123 engaged in a hole 121 is maintained at a tapered portion 128 when the bearing is inserted into another hole.

For installation, the block 105 has a large diameter hole 131 that is slidably engaged with the member 125 and a small diameter hole 1 that is aligned with this hole 131.
32, and the hole 132 is in sliding engagement with the sleeve 119.

There is an annular groove 133 on the outer surface of the member 125, into which a set catch 134 protruding through the mounting block engages and serves to tighten the member 125 to the mounting block.

Rod 118, snob 119 and cylindrical member 125 naturally have a common axis parallel to the direction of movement of plate 83.

During operation, the pin 90 moves toward the elbow member 99 in the direction of the arrow 41.
When a force is applied to the rod 11, this force passes through the pin 116
The sleeve is moved in the direction of arrow 41 due to the frictional force between rod 118 and bearing 123 which is transmitted to 8 and thereby rises (see FIGS. 10 and 11).

Referring primarily to FIG. 11, when the bearing is separated from the tapered portion and is no longer engaged, the rod 118 easily slides in the direction of arrow 41 and the rod 118 and sleeve 11
9 is balanced by the spring 126.

Therefore, when the rod slides through the sleeve, the sleeve 1
19 moves slightly at first.

Next, in Fig. 12, when the rod is stopped, spring 1
26 moves the sleeve in the direction of arrow 42, bringing the bearing back into contact with the rod and taper portion.

If a force is applied to move the plate 83 back in the opposite direction, this force will be transmitted to the rod 118, but the frictional force between the rod and the bearing and the frictional force between the bearing and the tapered portion which increases due to the wedge effect. prevents rod movement.

Therefore, the rod 118 is a member to which the clutch 87 is engaged, and when this rod is in the engaged state, the support plate 8
It can be seen that 3 and 84 cannot be separated.

Since the holes 121 are spaced apart and aligned, the retention force on the rod is naturally evenly distributed and therefore excessive local wear is minimized.

Additionally, the relative rotational motion between sleeve 119, member 125, and rod 118 can be used to periodically change the contact surfaces used to clutch the rod, thus minimizing localized wear. .

Preferably, the taper portion 128, rod 118, and bearings are made of hardened steel to further extend the life of the clutch.

1.13.14, if it is desired to move the plate 83 in the opposite direction, the bundle 110 should be moved at the arrow 115.
When turned in the direction of , the rod 113 hits the conical surface 136 of the flange 120 and slides the sleeve, thereby compressing the spring 126 and disengaging the bearing 123 from the tapered portion 122.

Furthermore, the rod 114 lifts the pawl 101 and disengages it from the teeth 102 of the ratchet 92.

As a result, the rod is disengaged and the knob 22
The plate 83 can be moved by turning.

When the bundle is replaced, spring 126 moves the sleeve and the rods are reengaged.

Needless to say, since the bearing is slidably and smoothly inserted into the hole, there is very little bumpiness when the rod is engaged.

As can be seen from the above description of the operation of clutch 87, the tapered portion may be pyramidal.

Also, while preferred, the sleeve and rod need not necessarily be cylindrical, and the bearing may be a disk rotatably supported in a slot in the sleeve.

Furthermore, instead of a coil spring, an elastic ring or a tension spring attached to the other end of the sleeve can also be used.

1 and 10, plates 83 and 84 support seat guide members 18 and 19, respectively, and seat guide members 18 and 19 support caliper members 23 and 24, respectively, so that knob 22 is When the caliper member is turned in the direction of 25, the caliper member comes into contact with the laminated paper sheets and compresses the sheets between the calipers.

Because of this compression, the sheets create enough resistance that clutch 96 slips, and no further turning of the knob in the same direction will bring plates 83 and 84 closer to each other, and unless bundle 110 is moved, turning knob 22 in the opposite direction will cause the clutch 96 to slip. Even if you turn it, the plate will not separate.

As can be seen from FIG. 15, the tape guide members 28 and 29 include throwers 139 and 140 (not all shown in the figure) and fasteners 141.
protrudes through the slot and the tape guide member 28
and 29 are slidably connected to plates 83 and 84, respectively.

The slots are constructed so that the tape guide members 28 and 29 can be moved closer or further away from each other.

15 and 16, the movement between the guide members will now be described.

One end of a turnbuckle 142 is rotatably attached to the end of the ratchet 92 opposite to the teeth 102, and the other end of the turnbuckle is rotatably attached to the end of the long leg of the L-shaped link 143 and the end of the link 144. It is installed on.

The link 144 is rotatably attached to the end of the short leg of the L-shaped link 145, and is rotatably attached to a pin 146 which is fixed to the frame plate 61 at a point between both ends.

The end of the long leg of the L-shaped link 145 is rotatably attached to a straight link 147.

The link 147 connects to the frame plate 6 at a point between its ends.
It is rotatably attached with a pin 148 fixed to 1,
It supports a pin 149 that slidingly engages a notch 150 at the end of the short leg of the L-shaped link 143.

The elbow portions of links 143 and 145 are rotatably mounted with pins 152 and 153 to drive elbow links 154 and 155, respectively.

Also, elongated throwers H5 in links 154 and 155
6 and 157 are in sliding engagement with pin 158 of press link 159.

When pin 158 is anchored and knob 22 is turned in the direction of arrow 25, ratchet 92 pulls turnbuckle 142, causing pins 152 and 153 to approach each other with links 154 and 155, respectively.

As seen in FIG. 15, tape guide members 28 and 29 include slotted extensions 159 and 160;
These extensions slidingly engage pins 153 and 152, respectively.

Thus, when the knob 22 is turned in the direction of the arrow 25, the tape guide members approach each other until the clutch 96 slips due to the resistance of the stack of sheets 17, as described above.

As is clear from the above, when the knob 22 is turned in the direction of the arrow 25 and the clutch 96 slips, the distance between the tape guide members 28 and 29 and the
4 is determined by the thickness of the laminated sheet group.

After the laminated sheet group 17 is engaged, the knob 22 is moved in the direction indicated by the arrow 25.
By turning in the direction , the pawl 101 engages the front end of the tooth 102 advanced by the rotation of the ratchet 92, and the sheet guide members 28 and 29 are separated to a substantially fixed position.

Three leading edges are provided by the ratchet 92, thus determining three different separations for the sheet guide, each with three different separations for different sheet group width ranges.
can be separated.

In this regard, it will be appreciated that the amount of separation can be determined by appropriate rotation of turnbuckle 142 during assembly of the device.

The clamping and pushing down mechanism for the stack of sheets 17 includes a two-piece clamping means, a drive means for bringing the clamping means into contact with and out of contact with the stack of sheets, and a drive means for moving the sheet group toward or away from the platen. Consists of means for moving the clamp.

In FIG. 8, clamping means 27 and 27a include a pair of parallel rods 163 and 164 rotatably connected to frame plates 60 and 61;
3 and 164 each support a portion that moves the sheet group 17 up and down when the rod is appropriately rotated by means of moving the clamps described above.

Structurally, each rod 163 is connected to the frame plate 60.
and 61 (see Figures 19 and 16), and a flange connected to rod 163 prevents axial movement of the rod, but rotation by said moving means is prevented. Not hinder.

A pair of arms 1 rotatably attached to the rod 163
65 and 166 are respectively connected to ends 167 and 168 of an angle iron bar 169, and a pair of arms 170 and 171 connected to the rod are connected to ends 167 and 168, respectively, by tension springs 172 and 173. .

The ends of arms 170 and 171 are elbow-shaped and extend below arms 165 and 166, respectively.

Therefore, arms 170 and 171 by rod 163
The downward rotation of causes tension in springs 172 and 173, which in turn causes angle bar 169 to be drawn downward at its ends.

As arms 170 and 171 rotate upward, their elbow ends abut arms 165 and 166, respectively, thereby causing angle bar 169 to move upward.

The angle iron bar 169 connects a plurality of similar seat drive devices 17.
4-177 is supported.

Referring to the seat drives 177 of FIG. 8.17.18, each drive has a U-shaped member 178 with one leg fixed to an angle bar 169 and the other leg with a pair of extensions. 179 and 180, and the extension 18
0, a pin 181 is appropriately fixed in parallel to the angle-shaped iron bar 169.

The pin 181 rotatably supports the element 182 and
2 has a flat friction pad 183 for engaging the stack of sheets.

Element 182 includes a stop 184 at its lower end;
The stop 184 comes into contact with the U-shaped member with a wire spring 185, and the stop 184 has a wire spring 185.

In cooperation with the tongue 185, the pad 183 can be maintained in a substantially vertical position before being secured to the sheet group.

The screw 186 in threaded engagement with the angle bar and said one leg of the U-shaped member 178 strengthen the U-shaped member and prevent it from deforming when the clamping means abuts the sheets and pad 183. It has the function of keeping the angle-shaped iron bar 169 at a predetermined distance.

The screw 186 is tightened with a nut 187.

The rod 164 similarly supports a fixed arm, a rotatable arm fixed to the angle bar, a bracket pull, a tension spring, and a drive fixed to the bracket, each drive being connected to one of the drives 174-177, respectively. They are facing each other.

Thus, when the clamping means 27 and 27a are actuated, the vertically placed stacked paper sheets are compressed by a set of oppositely spaced drives.

During the clamping process, the friction pads are arranged approximately vertically, so that no vertical movement occurs in the sheet group.

The angle bar is driven at both ends and so that in an automatic bookbinding cycle a set of spaced drives can uniformly press the edges of the sheets against the low-tack adhesive of the tape section. It should be noted that

The driving means for moving the laminated sheet group close to the platen and away from the platen is shown in FIGS. 8 and 19, and this driving means includes a shaft 38 driven by a motor 37 (see FIG. 3) The cam 43 and link mechanism 44 attached to the frame are impressive.

As seen in FIG. 19, the linkage 44 consists of a T-bar 190 with a vertical slot 191 in the stem portion and horizontal slots 192 and 193 in the arm portions.

The T-bar 190 is slidably connected to the outside of the frame plate 60 by bolts 194, and the bolts 194 are spacers (not shown), throwers) 191. The lock washer 1 protrudes sequentially through the washer 195.
It stops at 96.

The T-shaped bar 190 is also slidably connected to the outside of the frame plate 60 by bolts 197 .
7 is a spacer 199 (see FIG. 8) and a vertical slot 198 of frame plate 60 which are successively passed through and secured with lock washers.

Therefore, the T-shaped bar 190 can be moved up and down.

The driven link 201 has one end rotatably connected to the plate 60 and the other end slidably connected to the stem of the T-bar 190, and is pulled against the cam 43 by a tension spring 203 connected to the frame plate and the T-bar. It includes a follower 202 that is pressed downward.

As a result, the vertical position of the T-shaped bar is adjusted by the cam 43.

A crank arm 205 fixed to the rod 163 is slidably connected to a T-bar 190 by a bolt 206.

pol) 206 is the slot 193 and the washer 20 in sequence.
8 (see FIG. 8), which passes through a hole in the crank arm (not shown) and is secured with a nut 209.

Similarly, the crank arm 221, which is fixed to the rod 164, is slidably connected to the T-bar 190 by a bolt 210, which has a slot 192, a washer 212 (see FIG. 8), and a hole in the crank arm. (not shown in the figure) and is stopped by a nut 226.

Thus, if the T-shaped bar is stationary, the clamping means 2
7 and 27a cannot rotate, but can move toward or away from each other.

In fact, looking at FIG. 16, we see that elbow links 154 and 1
55 is a rod 164 with springs 213 and 214, respectively.
and 163, and when knob 22 is turned in the direction of arrow 24, the clamping means move toward each other.

Thereafter, turning the knob 22 in the opposite direction to set the tape guide releases the tension in the spring and the clamping means is placed in a position where it is subjected to the action of the means for bringing it into contact with the stack of sheets.

The means for bringing the clamping means into contact with the sheet group is a motor 37.
(See Fig. 3) The shaft 38 driven by the shaft 38, the cam 39 attached to the shaft 38, and the link mechanism 40.

In FIG. 16, the linkage 40 includes a bracket 215 secured to the frame plate 61 for sliding engagement with the link 159, a tension spring 216 connected to the bracket and link for pulling the link upwardly, and a tension spring 216 connecting the bracket and link downwardly. A threaded link extension 217 opposite and supporting the nut 218 and a driven link 219 are rotatably connected at one end and abut the nut 218 at the other end.

The driven link includes a follower 220 which is held in abutment with the cam 39 by the action of a tension spring 216.

By changing the position of nut 218 on extension 217, the tension of the spring can be adjusted.

As can be seen from the above, by rotating the cam 39, the link 159 is driven downward, and the elbow link 1
54 and 155 can be rotated about pins 152 and 153, respectively.

Crank by such rotation. The means is driven into abutment with the sheets therebetween, stressing the linkage.

With the linkage under stress as shown in Figure 16, the position of pins 152 and 153 is repeatable for each binding cycle, so that the spacing between the tape guides is consistent with the use of standard sized adhesive tape sections. It becomes convenient.

When the book is clamped as described above, the tape portion 47 is inserted, the clamping means lifts the sheet group, and the plate 21 on which the sheet group was placed is moved by the cam 45 attached to the motor drive shaft 38 and the link mechanism 45 ( (see Figure 5).

Regarding a few of the device components, tape guide members 28 and 29 and rods 163 and 164 are elongated members that move towards and away from each other but remain parallel to each other during operation of the device.

This parallel condition can be achieved, for example, by providing a proximal frame plate 60 linkage as shown in FIG. It is held by being connected to the proximal portion of the guide member.

Next, referring to FIG. 8, the plate 21 is secured to the frame plate 6 by bolts 222 and nuts 223.
0 and 61 are slidably connected to slots 224 and 225 parallel to each other.

In view of the above detailed structure responsive to the spring and motor drive shaft 38, it can be seen that the linkage 45 also includes a support, a link rotatably connected to the support, said link being connected at one end to the plate 21 and at the other. Those skilled in the art will appreciate the particular structure and structure of the linkage 45 shown here in view of its coupling with the cam follower at the end and its separation from the link for pressing the cam follower against the cam 45. I think it is possible to give structures and shapes other than shapes.

When the plate 21 is retracted and the sheet group is moved up and down, the platens 12 and 13 (see FIG. 9) engage the cam 48 attached to the motor drive shaft 38 and the link mechanism 4.
9 (see Figure 5).

In FIG. 9, elbow links 227 and 228 are fixed to shafts 229 and 230, respectively, and shaft 22
9 and 230 are rotatably supported by plates 72 and 76, respectively (not shown).

Links 227 and 228 each have a slot 231
and 232, these two slots being held horizontally by a pin 233 projecting through both slots.

The pin 233 is fixed to a driven link 234 rotatably supported by a shaft 235 connected to the frame plate, and the driven link has a follower 236 that contacts the cam 48.

The shaft 229 supports the arm 238 and rotatably supports the slotted link 239, and the link 239 and the arm 2
38 by a spring 240.

Similarly, shaft 230 supports arm 241 and rotatably supports slotted link 242 , and link 242 and arm 241 are connected by spring 243 .

Slotted links 239 and 242 are slidably connected to pins on platens 13 and 12, respectively.

platens 13 and 12 are throwers in the platen) 246
plates 84 and 8, respectively, by fasteners 141 projecting through them (only one shown).
3 is slidably connected to.

Thus, as follower 236 is pushed downwardly by cam 48, elbow links 227 and 228 rotate and slotted links 239 and 242, respectively, engage spring 2.
40 and 243, and rotated by F.

Latin 12 and 13 are brought closer together.

This downward movement of follower 236 also causes the follower link to attach to pin 24 on frame 60 (not shown).
Pull the spring 244 connected to 5.

Therefore, when the follower is not pushed down by the cam 48, the spring 244 returns the link mechanism 49 to the position shown in FIG.

As the linkage returns, arms 238 and 241 abut extensions 249 and 250, respectively, on the slotted links and pull platens 12 and 13 apart to their furthest positions.

Note that the linkage described above connects to the platen at one end and a similar linkage connects to the other end (not shown) and is approximately equally spaced along the length of platens 12 and 13. Should.

As is clear from FIG. 9, the maximum distance between the platens 12 and 13 is determined by the separation distance between the support plates 83 and 84, and the separation distance between the support plates is determined by the distance between the sheets to be bound as described above. Determined by group thickness.

The cam 48 is designed so that one of its ropes 48H can drive the platens closer together to preheat the tape section.

Cam portion 48b then pulls the platen apart slightly.

In this position, the platen can be pulled apart slightly by the entry of the sheets and tape portion, thus allowing the edges of the sheets to be wrapped smoothly with tape.

Platens 12 and 13 are then pressed against the tape at rope 48C to secure the tape to the sheets.

Needless to say, the use of clutch 87 as opposed to a latch, which can only be engaged intermittently, such as a ratchet mechanism,
In order to maintain the mechanical forces involved, the pitch of the teeth of the ratchet I must be relatively large, and in such clutches the spacing between the platens depends on the pitch of the teeth rather than on the width of the stack of sheets to be bound. It is advantageous in that it depends on

As a result, the platen cannot be automatically moved to a position where the adhesive tape portion is wrapped around the group of laminated sheets being pushed.

Accordingly, the use of a clutch capable of engaging a movable member such as rod 118 (see FIG. 10) at any movable position enhances the operation of the bookbinding apparatus of the present invention disclosed herein.

Although the present invention has been described above with reference to preferred embodiments, it goes without saying that the scope of the utility model registration claims and the embodiments that define the present invention are not limited to these embodiments.

The embodiments of the present invention are as follows.

1. A device as claimed in the claims, in which the releasable latching means has a rod connected to one of the support plates, at least one bearing, at least one hole, and is slidably connected to the rod. an engaged sleeve, each of said at least one aperture being engageable with a separate one of said at least one bearing, said bearing being engaged with a corresponding aperture; The sleeve has a hole sized such that the dimension along the axis of the corresponding hole is greater than the length of the hole, and the hole has a portion that slidably engages the outer surface of the sleeve and a tapered portion. a member having: a resilient means connected to a sleeve for pressing said at least one bearing onto a rod and a tapered portion; and a means for connecting said member to a frame.

2. said at least one bearing is a plurality of bearings, said at least one hole guiding the bearing into contact with the rod along a point substantially forming a theoretical plane perpendicular to the longitudinal axis of the sleeve; 2. The device of claim 1, wherein the device is a plurality of spaced apart holes.

3. The rod is cylindrical, the sleeve is cylindrical,
The portion that slidingly engages with the outer surface of the sleeve is cylindrical, the tapered portion is conical, and the axis of the rod, the sleeve, the axis of the portion that engages with the sleeve, and the axis of the tapered portion are aligned. 2. The device according to item 2 above.

4. The device of claim 3, wherein the bearing is spherical and each of the plurality of holes includes an abutment for limiting the extent to which the corresponding bearing projects past the inner surface of the sleeve.

5. The device according to item 4, wherein a tapered portion of one of the plurality of holes serves as at least one abutment.

6. The device according to item 3 above, wherein the surface of the tapered portion, the bearing and the rod have approximately the same hardness.

7. The device of claim 1, wherein the sleeve includes an outer flange and the resilient means is located between the flange and the member.

8. The at least one bearing is a plurality of bearings, and the at least one hole is adapted to bring the bearing into contact with the rod along a point substantially forming a theoretical plane perpendicular to the longitudinal axis of the sleeve. 8. The apparatus of claim 7, wherein a plurality of spaced holes are provided for guiding the point, each of said points being approximately equidistant from its nearest neighbor.

9. The rod is cylindrical, the sleeve is cylindrical,
The portion that slidingly engages with the outer surface of the sleeve is cylindrical, the tapered portion is conical, and the axis of the rod, the sleeve, the axis of the sleeve engaging portion, and the axis of the tapered portion are aligned; The apparatus according to item 8 above.

10. The resilient means includes a compression spring surrounding a portion of the sleeve, said spring applying an axial bias to the sleeve to urge the bearing against the rod and the tapered portion;
The device according to item 7 above.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a bookbinding device including the present invention, FIG. 2 is a cross-sectional view of an adhesive sheet that can be used in a device that binds laminated paper sheet layers, and FIGS. 3 to 7 are bookbinding devices. FIG. 8 is a schematic diagram showing each component of the bookbinding apparatus and the movement of each component during the bookbinding cycle, and FIG.
The means for clamping the sheet group and the means for moving the sheet group up and down are clearly shown, and FIG. 9 is a side view of the structure of the bookbinding apparatus, which is attached to a platen and a support plate movable synchronously within the apparatus. Portions of the structure have been removed to clearly show the mounting tape guide and platen drive means, and FIG. 10 is a partial perspective view of the means for adjusting the horizontal spacing between support plates and adhesive tape guides; A portion has been removed to show the internal structure of the clutch, which is a component of the means, and FIG. 11 is a sectional view of the clutch when the clutch rod is sliding in one direction, and FIG. 13 is a cross-sectional view of the clutch when the rod is pushed in the opposite direction; FIG. 13 is a partial plan view of the structure showing the release mechanism of the adjusting means in the activated position;
14 is a sectional view taken along line 14--14 of FIG. 13, and FIG. 15 is a partial sectional view of the linkage for determining the horizontal distance between the tape guide members in response to the support plate 1- and adjustment means. 16 is a side view of the link mechanism connecting the adjusting means and the clamping means and the means for engaging and disengaging the clamping means with the group of laminated sheets, and FIG. 17 is a side view of the link mechanism connecting the adjusting means and the clamping means, and FIG. 18 is a perspective view of a sheet drive forming part of a means for clamping stacked sheets; FIG. 18 is a perspective view of the sheet drive with a portion removed to show the internal structure; and FIG. FIG. 19 is a side view of means for moving the laminated sheet group up and down. 17: Laminated sheet group, 30: Adhesive tape, 60.61
: frame, frame plate, 83, 84: support plate, 23, 24: caliper member, 28, 29: adhesive tape guide member, 86: means for adjusting the horizontal spacing of the support plate, 12.13 a pair of platens.

Claims (1)

[Claims for Utility Model Registration] A group of laminated sheets having a thickness within one of several thickness ranges, having a width determined according to the thickness range to which the thickness of this sheet group corresponds. An apparatus for applying adhesive tape comprising: (a) a frame; (b) a pair of support plates movably attached to the frame; (C) a pair of caliper members each connected to a separate support plate; (d) ) means for moving the support plates to compress the stacked sheets to be bound with a predetermined force by bringing the caliper members closer to each other; (f) a pair of adhesive tape guide members each connected to a separate support plate; (g) a lamination depending on the distance between the clutched support plates; (h) means for moving the adhesive tape guide members into a position supporting adhesive tapes of suitable width for binding the edges of the group of sheets; a pair of platens, the maximum distance between facing platens being determined by the distance between the support plates; (j) a driving means for smoothly wrapping the tape around the edge by pressing against the portions of the platen placed and facing each other; (j) a fixing means for fixing the adhesive tape to the stack of laminated sheets for bookbinding; A device consisting of