JP2012250348A - Binding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binding machine that can secure an elastic rebound force necessary to restore a blade at the necessary timepoint while keeping the energy necessary for operation low.SOLUTION: The binding machine includes: a paper-holding part 2 which holds multiple sheets of paper P; a blade 3 which pierces the paper P held in the paper-holding part 2; a drive mechanism 4 which moves the blade 3 and the paper-holding part 2 relative to each other using the operation force applied on an operating member; and a spring 5 which stores the rebound force using part of the operation force applied on the operating member and, after reaching an operation completion time T3 when the operation force is dissipated, withdraws the blade 3 from the paper P using the rebound force to bind the paper P. The binding machine is configured so that the handle operation completion time T3 can occur between the time of maximum penetration T2 when the blade 3 pierces the paper P most deeply and the time of maximum resistance T4 when the resistance to withdrawal of the blade 3 from the paper P is highest.

Description

  The present invention relates to a binding machine referred to as a so-called stapleless stapler that does not use a metal needle among binding machines that integrally bind the ends of a plurality of stacked sheets.

  2. Description of the Related Art Conventionally, as this type of binding machine, a binding machine for joining a plurality of sheets to each other using cutting and raising pieces cut and raised from a plurality of sheets by a punching blade and a punch table is known. (For example, see Patent Document 1).

  This binding machine is configured so that the punching blade makes one reciprocating motion by reciprocating the handle, and the blade is inserted into a sheet attached to a punch table fixed when the handle moves forward. And the blade is removed from the paper when the handle is returned to complete the binding operation. More specifically, the conventional binding machine is configured to elastically deform a return spring for extracting the blade while penetrating the blade into the paper when the handle is moved forward. Then, when the hand is released from the handle, the handle automatically returns due to the repulsive force of the return spring and the blade is extracted from the paper.

  For this reason, when moving the handle forward, the energy for penetrating the blade and the energy for extracting the blade must be applied at the same time, and there are certain limits to reducing the operating force. It was desired.

  As a result of various studies to meet such demands, the present inventors have obtained the following knowledge and completed the present invention.

  That is, in this type of binding machine, a spring having a characteristic that a displacement amount and a repulsive force are substantially proportional, such as a coil spring, is used as a spring for returning the blade. Therefore, as shown in FIG. 16, the repulsive force of the coil spring for returning the blade linearly increases from the timing of starting the operation, and the repulsive force is maximized when the operation is finished (operation end timing). The maximum timing of repulsion will be reached at the same time. The blade is driven by the repulsive force of the decreasing blade restoring coil spring, and is extracted from the paper. That is, the clinch point at which the resistance force increases when the blade is extracted from the paper (maximum resistance timing) is located in the latter half of the operation of extracting the blade from the paper. At the clinch point, it was found that the repulsion force of the coil spring for returning the blade was relatively reduced, and it did not work effectively in a region where a large repulsion force was exerted.

  Based on this finding, as a result of further research, we found the fact that the area where the coil spring for returning the blade is not functioning effectively can be reduced by bringing the maximum repulsive force timing close to the maximum resistance timing. The present invention has been completed.

JP 2010-228451 A

  In view of the circumstances as described above, it is an object of the present invention to provide a binding machine that can secure an elastic repulsion force necessary for returning a blade at a necessary time while keeping energy required for operation low. It is said.

  The present invention employs the following configuration in order to solve the above-described problems. That is, the binding machine according to the present invention uses a sheet holding unit that holds a plurality of sheets, a blade that penetrates the sheet held by the sheet holding unit, and an operation force applied to an operating body. And a drive mechanism that relatively operates the paper holding unit, and after reaching the operation end timing at which the repulsive force is accumulated by using a part of the operation force applied to the operating body and the operation force is deenergized. A spring for pulling out the blade from the paper by the repulsive force and binding the paper, the deepest penetration timing at which the blade penetrates the paper deepest, and the blade is pulled out from the paper It is characterized in that the operation end timing of the operating body can be reached between the maximum resistance timing at which the pulling resistance at the time becomes the largest.

  Here, the “paper” may be any material as long as it is an object to be punched, and includes paper, plastic, metal, or wood. Moreover, it is not restricted to a thin sheet-like thing.

  Further, the “spring” may be any one as long as the blade and the paper are relatively pulled out by the accumulated repulsive force, such as a compression coil spring, a tension coil spring, Various types such as a torsion coil spring, a leaf spring, and a gas spring are included.

  If it is such, the elastic repulsive force required in order to return a blade can be ensured at the required time, keeping the energy required for operation low.

  The spring is preferably one in which the displacement and the repulsive force are approximately directly proportional.

  The operating body is preferably one that is operated manually.

  As a specific form of sheet binding, a punching hole and a cut hole are formed in a plurality of sheets, and a leading end portion of a cut and raised piece cut out from the punching hole is inserted into the cut hole, and the cut and raised Examples include one in which a plurality of sheets can be bound to each other by engaging a piece with a cut hole, and the blade forms a punch blade for forming the punch hole and the cut hole. What is the cutting blade for doing is mentioned as an example.

  As a preferable mode in a case where the operating body operates within a range from the operation start position to the operation end position through the intermediate position, the drive mechanism is operated until the operating body reaches the intermediate position from the operation start position. The operation force is applied to the blade and the paper holding unit is relatively operated between the standby state where the blade and the paper holding portion are separated from each other and the penetrating state where the blade penetrates the paper, and the operation body ends the operation from the intermediate position. It is preferable that the operation force applied until reaching the position is sequentially configured to sequentially move the blade and the paper holding unit so that the blade is pulled out from the paper by a certain size. .

  More specifically, the operating body operates in a range from the operation start position through the intermediate position to the operation end position, and the drive mechanism until the operating body reaches the intermediate position from the operation start position. The operation force applied to the blade is operated with respect to the stationary blade by operating the paper holding portion with respect to the stationary blade, and the operation force applied until the operating body reaches the operation end position from the intermediate position. Is configured to sequentially operate the blade with respect to the stationary sheet holding unit so that the blade is extracted by a certain dimension from the sheet, and the operation body is moved from the operation start position to the intermediate position. A first lock mechanism that locks the blade in a specific position where it can penetrate the paper only, and a second lock that locks the blade that has been retracted by a certain dimension when the operating body reaches the operation end position beyond the intermediate position What is obtained by a structure and the like.

  Here, the “constant dimension” means a dimension from a state where the blade penetrates the paper most deeply to a state immediately before the clinch point.

  The binding machine according to the present invention includes a sheet holding unit that holds a plurality of sheets, a blade that penetrates the sheet held by the sheet holding unit, and an operation force applied to an operating body. The drive mechanism that relatively operates the holding unit and the repulsive force after reaching the operation end timing at which the repulsive force is accumulated by using a part of the operating force applied to the operating body and the operating force is extinguished. A spring for pulling out the blade from the paper and binding the paper, and the blade has the maximum repulsive force timing at which the repulsive force of the spring that contributes to pulling the blade from the paper is maximized. The above-described effects can be obtained if it is configured to be displaced after the deepest penetrating timing to penetrate deepest and to be close to the maximum resistance timing at which the resistance when extracting the blade from the paper becomes the largest. It is.

  Here, the “maximum repulsive force timing” means a timing at which the repulsive force of the spring becomes the largest in a state that can contribute to removing the blade from the paper, and the spring is locked so as not to exert the repulsive force. It is a concept that does not include the time zone that is in the state of being.

  Since this invention is the above structures, it can provide the binding machine which can ensure the elastic repulsion force required in order to return a blade at the required time, restraining the energy required for operation low. .

The top view of the binding machine concerning 1st embodiment of this invention. FIG. 2 is a sectional view taken along line AA in FIG. 1. Schematic which shows the action | operation of the binding machine of the embodiment. Schematic which shows the binding machine of the embodiment. Schematic which shows the action | operation of the binding machine of the embodiment. The timing chart explaining the action | operation of the binding machine of the embodiment. The timing chart explaining the action | operation of the binding machine concerning 2nd embodiment of this invention. Schematic of the binding machine concerning 3rd embodiment of this invention. The timing chart explaining the action | operation of the binding machine of the embodiment. Schematic of the binding machine concerning 4th embodiment of this invention. Schematic which shows the action | operation of the binding machine of the embodiment. The timing chart explaining the action | operation of the binding machine of the embodiment. Schematic of the binding machine concerning 5th embodiment of this invention. Schematic which shows the action | operation of the binding machine of the embodiment. The timing chart explaining the action | operation of the binding machine of the embodiment. The timing chart explaining the action | operation of the conventional binding machine.

<First Embodiment, FIGS. 1 to 6>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

  As shown in FIGS. 1 to 6, the binding machine 1 forms punch holes P1 and cut holes P2 in a plurality of sheets P, and cuts and raises the cut and raised pieces P5 cut out from the punch holes P1. The booklet B can be made by binding the plural sheets of paper P to each other by being inserted through the hole P2.

  As shown in FIGS. 1 and 2, this booklet B is formed by bundling a plurality of sheets P, and these sheets P are joined to each other at one joint portion P3 set on the binding side. Yes. The joining portion P3 includes a punching hole P1 formed in each paper P by a punching blade 31 penetrating from one side Pa of the paper P, and a lifting hole formed in each paper P adjacent to the punching hole P1. It is composed of a cut hole P2 and a cut and raised piece P5 cut and raised from the punching hole P1 to the other surface Pb side of the paper P. The leading edge P51 side of the cut and raised piece P5 is passed through the cut hole P2 and led to the one surface Pa side of the paper P, whereby the binding source sides of the plurality of paper P are joined to each other. .

  As shown in FIGS. 1 and 2, the cut-and-raised piece P5 has a tongue-like shape in which one end forms a semicircular arc shape. Note that the cut and raised piece P5 can be variously changed such as an arrowhead shape, and is not limited to the one in the present embodiment.

  As shown in FIGS. 1 and 2, the punching hole P1 has a size and shape corresponding to the cut and raised piece P5, and immediately after drilling by the punching blade 31, a slit corresponding to the shape of the punching blade 31 is formed. After the cut and raised piece P5 is cut and raised, one end corresponding to the shape of the cut and raised piece P5 is a long hole-like space having a semicircular arc shape. The punching hole P1 can be variously changed and is not limited to the one in the present embodiment.

  On the other hand, as shown in FIGS. 1 and 2, the cut hole P2 has a linear main slit P21 for mainly engaging the cut and raised piece P5, and a predetermined direction, that is, punching from both ends of the main slit P21. A sub slit P22 that bends and extends in a direction opposite to the hole P1 is provided. The cut hole P2 can be variously changed and is not limited to the one in the present embodiment.

  The binding machine 1 used when binding the paper P in this way will be described with reference to FIGS. 1 and 3 to 6.

  As shown in FIGS. 1 and 3 to 6, the binding machine 1 includes a sheet holding unit 2 that holds a plurality of sheets P, and a blade 3 that penetrates the sheet P held by the sheet holding unit 2. A drive mechanism 4 that relatively operates the blade 3 and the sheet holding unit 2 using an operation force applied to the handle 9 as an operating body, and a part of the operation force applied to the handle 9 are used. After reaching the operation end timing T3 when the repulsive force is accumulated and the operating force is deenergized, the spring 5 is provided as a spring for pulling out the blade 3 from the paper P by the repelling force and binding the paper P. It becomes.

  As shown in FIG. 1 and FIGS. 3 to 6, the sheet holding unit 2 has a gap 21 into which the sheet P can be inserted. The sheet holding unit 2 is provided between the standby position (d) and the penetrating position (e) in the housing 6. It is held so that it can move up and down. In the present embodiment, an upper stopper (not shown) that prohibits the sheet holding unit 2 from moving upward from the standby position (d) and the sheet holding unit 2 from moving downward from the through position (e) are prohibited. A lower stopper 61 is provided on the housing 6.

  As shown in FIGS. 1 and 3 to 6, the blade 3 is a cutting blade 31 for forming the punching hole P <b> 1 and a cutting blade 32 for forming the cut hole P <b> 2. And can be moved up and down between the drilling position (f) and the retracted position (g). That is, the blade base 7 is held by the housing 6 so as to be movable up and down.

  As shown in FIGS. 1 and 3 to 6, the punching blade 31 can form a cut and raised piece P <b> 5 having a curved portion at the tip P <b> 51, and is attached to the blade base 7. An inner cam 8 for inserting the cut and raised piece P5 into a window 33 provided in the cutting blade 32 is provided in the space surrounded by the punching blade 31. The inner cam 8 has a shaft 81 at the base end and a pushing portion 82 for inserting the cut and raised piece P5 into the window 33 provided in the cutting blade 32 at the tip. An arm 83 for rotating the inner cam 8 is projected from the base end of the inner cam 8.

  The cutting blade 32 can form, for example, a U-shaped cut hole P <b> 2 as shown in FIG. 1, and is attached to the blade base 7. As shown in FIG. 1 and FIGS. 3 to 6, the cutting blade 32 includes a window 33 through which the cut and raised piece P5 punched from the paper P passes and the cut and raised piece P5 is engaged. . The blade base 7, the cutting blade 31, the inner cam 8, and the cutting blade 32 described above can be variously changed and are not limited to those described above.

  As shown in FIGS. 1 and 4 to 6, the handle 9 is manually operated to operate, and reaches the operation end position (c) from the operation start position (a) through the intermediate position (b). Configured to work with a range. That is, the handle 9 is supported by the housing 6 via the shaft 91 so as to be rotatable in the vertical direction.

  As shown in FIGS. 4 to 6, the drive mechanism 4 has a punching blade 31 and a cutting blade 32 by operating force applied until the handle 9 reaches the intermediate position (b) from the operation start position (a). Between the standby state in which the paper holding unit 2 and the paper holding unit 2 are separated from each other and the through state in which the punching blade 31 and the cutting blade 32 pass through the paper P, and the handle 9 is in the intermediate position. The cutting blade 31 and the cutting blade 32 so that the punching blade 31 and the cutting blade 32 are pulled out from the paper P by a certain dimension L by the operating force applied from (b) until reaching the operation end position (c). The operation of moving the sheet holding unit 2 relative to each other is sequentially performed. That is, the drive mechanism 4 in this embodiment includes a paper drive member 41 for operating the paper holding unit 2, a blade drive member 42 for operating the punching blade 31 and the cutting blade 32, and the handle 9. 6 is provided with an operation conversion mechanism 43 for operating the paper drive member 41 and the blade drive member 42 at the timing shown in FIG.

  As shown in FIGS. 4 to 6, the motion conversion mechanism 43 operates the paper drive member 41 and the blade drive member 42 at the timing shown in FIG. 6 by the operation force applied to the handle 9. When the operating force is de-energized, the paper drive member 41, the blade drive member 42, and the handle 9 are returned by the repulsive force of the spring 5, and are schematically shown in FIGS. 4 and 5, for example. The structure as shown in FIG. That is, the motion conversion mechanism 43 in this embodiment is attached to the lower surface of the handle 9 and the first cam 47 attached to the lower surface of the handle 9 and having the cam surface 431 in contact with the upper surface of the paper drive member 41. And a second cam 48 having a cam surface 432 in contact with the upper surface of the blade drive member 42. The cam surfaces 431 and 432 of the first and second cams 47 and 48 and the cam receiving surfaces 433 and 434 of the paper driving member 41 and the blade driving member 42 have timings as shown in FIG. The shape corresponding to the chart is set. The paper drive member 41 is connected to the paper holding unit 2 through a connecting member 44 so as to be capable of operating integrally. The blade drive member 42 is connected to the blade base 7 via an elevating member 45 and an arm 46. The elevating member 45 includes a downward pressing surface 451 for pressing the arm 46 downward when lowered, and an upward pressing surface 452 for lifting the arm 46 upward when rising.

  For example, as shown in FIGS. 3 to 6, the spring 5 is a compression coil spring 5 in which the displacement amount and the repulsive force are substantially directly proportional, and is arranged between the bottom surface of the housing 6 and the lower surface of the sheet holding portion 2. ing.

  In the present embodiment, a first lock mechanism 10 for locking the blade 3 at the drilling position (f) and a second lock mechanism 11 for locking the blade 3 at the retracted position (g) are provided. .

  As shown in FIGS. 4 to 6, the first lock mechanism 10 moves the punching blade 31 and the cutting blade 32 until the handle 9 reaches the intermediate position (b) from the operation start position (a). It locks at a specific position that can penetrate the paper P, that is, the punching position (f), and is provided between the blade base 7 and the housing 6. For example, the first locking mechanism 10 is unlocked when the downward pressing surface 451 of the elevating member 45 of the driving mechanism 4 contacts the arm 46, and the upward pressing surface 452 of the elevating member 45 is the arm. The blade 3 is configured to be locked when the blade 3 reaches the drilling position (f) while being in contact with 46.

  As shown in FIGS. 4 to 6, the second locking mechanism 11 includes a punching blade 31 and a cutting blade whose handle 9 has reached the operation end position (c) beyond the intermediate position (b) and has been retracted by a certain dimension L. 32 is to be locked, and is provided between the blade base 7 and the housing 6. For example, the second lock mechanism 11 is locked when the blade 3 reaches the retracted position (g) while the downward pressing surface 451 of the elevating member 45 of the drive mechanism 4 is in contact with the arm 46. When the upward pressing surface 452 of the elevating member 45 comes into contact with the arm 46, the lock is released. In the present embodiment, the fixed dimension L means that the upper edge 34 of the window 33 of the cutting blade 32 passes the cut and raised piece P5 from the state where the punching blade 31 and the cutting blade 32 penetrate the paper P most deeply. It is a dimension until it reaches the state of pressing in the direction.

  In addition, the code | symbol 12 shown in FIG.4 and FIG.5 is an auxiliary spring which is a spring for returning the blade base 7 to the drilling position (f) which is an initial position. The auxiliary spring 12 has a repulsive force that is small enough to return the unloaded blade base 7 released from the second lock mechanism 11 from the retracted position (g) to the drilling position (f). Good.

<Operation description>
Next, the operation from the operation start T1 of the binding machine 1 to the binding operation end T5 will be described with reference to FIGS. 3, 5, and 6. FIG.

  According to the binding machine 1, the following operation is performed while the handle 9 is operated in the same direction from the operation start position (a) to the intermediate position (b). That is, the sheet holding unit 2 is lowered from the standby position (d) to the penetrating position (e), and is stopped by the lower stopper 61 at the penetrating position (e). Meanwhile, the spring 5 is compressed and the repulsive force is accumulated. On the other hand, the punching blade 31 and the cutting blade 32 are held at the drilling position (f) and stopped by the action of the first lock mechanism 10. Accordingly, the punching blade 31 and the cutting blade 32 pass through the paper P held by the paper holding unit 2, the punching hole P1 and the cut hole P2 are formed in the paper P, and the inner cam 8 is connected to the paper holding unit 2. The rotation starts with the lowering operation, and the cut and raised piece P5 cut and raised from the punching hole P1 is inserted into the window 33 of the cutting blade 32. When the handle 9 reaches the intermediate position (b), the blade 3 reaches the deepest penetration timing T2 at which it penetrates the paper P most deeply, and the cut and raised piece P5 fits in the window 33 of the cutting blade 32 appropriately. It will be.

  When the handle 9 is further operated in the same direction from the intermediate position (b) to the operation end position (c) after the deepest penetration timing T2, the following operation is performed. That is, the sheet holding unit 2 is stopped at the penetrating position (e) by the cooperation of the lower stopper 61 and the motion conversion mechanism 43. The spring 5 is held while maintaining the most compressed state. On the other hand, the cutting blade 31 and the cutting blade 32 are released from the blade driving member 42 that is biased and lowered by the motion conversion mechanism 43 because the locked state of the first locking mechanism 10 is released at the deepest penetration timing T2. The pressure is lowered by a certain dimension L, and the cut and raised piece P5 is pressed against the paper P by the upper edge 34 of the window 33 of the cutting blade 32. Then, when the blade base 7 is lowered by a certain dimension L, the punching blade 31 and the cutting blade 32 are locked at the retracted position (g) by the second lock mechanism 11. The repulsive force maximum timing is reached when the handle 9 reaches the operation end position (c), that is, at the operation end timing T3.

  Next, when the hand is released from the handle 9, the following operation is performed. That is, when the operating force applied to the handle 9 is de-energized, the sheet holding unit 2 moves upward by the repulsive force of the spring 5. As a result, the cut and raised piece P5 is pressed against the upper edge 34 of the window 33 and is pushed into the cut hole P2, and the binding operation is completed. In the middle, that is, when the cut and raised piece P5 is pushed into the cut hole P2, and the leading end P51 is extracted on the opposite side surface, the extraction resistance when the blade 3 is extracted from the paper P is maximized. Resistance timing T4 (clinch point) will be reached. This extraction operation is performed by the repulsive force of the spring 5.

  Since the maximum resistance timing T4 is set close to the maximum repulsive force timing at which the repulsive force of the spring 5 becomes the largest, it is not necessary to accumulate useless energy in the spring 5. In other words, as shown by the alternate long and short dash line in FIG. 6, if the conventional one is not accumulated a large repulsive force at the deepest penetration timing T2, it is impossible to pass the clinch point with only the spring 5 force. It was possible. However, according to this embodiment, it is possible to pass the clinch point with less repulsive force accumulation than in the past. Therefore, it is not necessary to apply a large operating force to the handle 9, and the operational feeling can be made light.

  The punching blade 31 and the cutting blade 32 are locked at the retracted position (g) by the second lock mechanism 11 until they are extracted from the paper P, but thereafter the second lock mechanism. 11 is released. The cutting blade 31 and the cutting blade 32 released from the restraint by the second lock mechanism 11 are lifted upward by the blade driving member 42 which has started to rise from the operation end timing T3, and return to the drilling position (f). Then, it is locked by the first lock mechanism 10 and is in an initial state. Further, the handle 9 is returned to the operation start position (a) by the repulsive force of the spring 5 transmitted from the paper drive member 41 by the action of the motion conversion mechanism 43.

<Effect of this embodiment>
As described above, the binding machine 1 according to this embodiment includes the sheet holding unit 2 that holds a plurality of sheets P, the blade 3 that penetrates the sheet P held by the sheet holding unit 2, and the handle 9. A drive mechanism 4 that relatively operates the blade 3 and the sheet holding unit 2 using an applied operating force, and a repulsive force that accumulates a part of the operating force applied to the handle 9 to accumulate the operating force. A spring 5 for pulling out the blade 3 from the paper P and binding the paper P by the repulsive force after reaching the operation end timing T3 at which the force is deenergized. Reaches the operation end timing T3 of the handle 9 between the deepest penetration timing T2 at which the paper P penetrates the paper P most deeply and the maximum resistance timing T4 at which the extraction resistance when the blade 3 is extracted from the paper P is the largest. As you get Since the forms can while suppressing the energy required for operation, ensuring at the required elastic repulsive force necessary for returning the punching blades 31 and cutting blade 32.

  That is, since the handle operation is performed beyond the deepest penetration timing T2, useless energy conventionally applied to the spring 5 can be reduced, and the cut and raised piece P5 passes through the cut hole P2 and is opposite to the sheet P. The maximum repulsive force of the spring 5 can be fully utilized at the maximum resistance timing T4 that is pulled up. In other words, the maximum repulsive force timing at which the repulsive force of the spring 5 that contributes to extracting the blade 3 from the paper P is maximized is displaced after the deepest penetration timing T2 at which the blade 3 penetrates the paper P most deeply. Thus, the above-described effect can be obtained because it is configured to approach the maximum resistance timing T4 at which the resistance when the blade 3 is extracted from the paper P becomes the largest. In the present embodiment, the operation end timing T3 and the maximum repulsive force timing are the same period.

  Since the spring 5 of this embodiment is a coil spring in which the amount of displacement and the repulsive force are substantially directly proportional, the present invention can be realized using a relatively simple configuration. In particular, since the spring 5 of the present embodiment is disposed in the vicinity of the portion of the paper P where the punching hole P1 and the cut hole P2 are perforated, the paper holding portion 2, the punching blade 31 and the cutting blade 32 cooperate. It can act as a paper presser and can form punch holes P1 and cut holes P2 having desired shapes in the paper P. In addition, the spring 5 moves the punching blade 31 and the cutting blade 32 through the operation converting mechanism 43 and the auxiliary spring 12 in the punching position (with the operation of pulling the punching blade 31 and the cutting blade 32 from the paper P). Since the sheet holding unit 2 is automatically returned to the standby position (d) as well as being automatically returned to f), the binding operation can be continued after the completion of one binding operation. it can. At this time, it is not necessary to use a coil spring having a large spring force as in the prior art, and the operating force can be reduced, and the coil spring 5 and the binding machine 1 can be miniaturized.

  In this embodiment, since the handle 9 is manually operated to operate, the punching operation and the binding operation are completed with a small operating force compared to the conventional binding machine, in other words, with a light operating force. Can do.

  A punch hole P1 and a cut hole P2 are formed in a plurality of sheets of paper P, and a tip P51 portion of a cut and raised piece P5 cut and raised from the punch hole P1 is inserted into the cut hole P2, and the cut and raised piece P5 and The plurality of sheets of paper P can be bound to each other by engaging with the cut hole P2, and as the blade 3, a punch blade 31 for forming the punch hole P1, and the cut hole Since the cutting blade 32 for forming P2 is used, especially when the number of sheets P increases, when the cutting and raising piece P5 is inserted into the cut hole P2, the cutting blade 32 and the sheet P are more Specifically, a relatively large frictional force is generated between the cut and raised piece P5 and the cutting blade 32. Therefore, as the energy for extracting the cutting blade 32 from the paper P, an energy larger than the energy for extracting the blade 3 from the paper P in the case of punching for punching is required. However, even in such a binding machine 1 that can handle a large number of sheets, when the cutting blade 32 is passed through the paper P, the energy required for extracting the cutting blade 32 can be reduced, and the spring 5 Since the cut and raised piece P5 can be inserted into the cut hole P2 in the vicinity where the repulsive force becomes maximum, the cutting blade 32 can be pulled out from the paper P by using a relatively small spring 5.

  The handle 9 moves in one direction from the operation start position (a) through the intermediate position (b) to the operation end position (c). The drive mechanism 4 is operated by the handle 9 when the operation start is started. Due to the operation force applied from the position (a) to the intermediate position (b), the paper holding unit 2 is placed in the standby position (d) with respect to the punching blade 31 and the cutting blade 32 held at the punching position (f). ) To the penetrating position (e), and thereafter, the punching blade 31 and the cutting blade 32 are moved by the operating force applied until the handle 9 reaches the operation end position (c) from the intermediate position (b). The punching blade 31 and the cutting blade 32 are moved from the punching position (f) to the retracted position (g) with respect to the paper holding part 2 held at the penetrating position (e) so that only a fixed dimension L can be extracted from the paper P. Operates away by a certain dimension L Since those constructed urchin, with reference to an operation in one direction applied to the handle 9, it is possible to contact and separation operation of the blade 3 and the paper holding portion 2. In other words, the driving mechanism 4 has the punching blade 31 and the cutting blade that have stopped the paper holding portion 2 by the operation force applied until the handle 9 reaches the intermediate position (b) from the operation start position (a). The punching blade 31 and the cutting blade 31 are operated by the operation of causing the blade 3 to pass through the sheet P and the operation force applied until the handle 9 reaches the operation end position (c) from the intermediate position (b). Since the blade 32 is configured to sequentially perform the operation of operating the blade 3 with respect to the stationary paper holding unit 2 so that the blade 32 can be extracted from the paper P by a certain dimension L, one direction applied to the handle 9 After the punching hole P1 and the cut hole P2 are punched in the paper P using the operation described above, and the cut and raised piece P5 is formed, the cut is made up to the stage immediately before the cut and raised piece P5 is inserted into the cut hole P2. Lifted by blade 32 And thus to be.

  In particular, in the present embodiment, the first locking mechanism 10 that locks the blade 3 at a specific position that can penetrate the paper P only until the handle 9 reaches the intermediate position (b) from the operation start position (a). And the handle 9 is provided with a second lock mechanism 11 that locks the blade 3 retracted by a certain dimension L after reaching the operation end position (c) beyond the intermediate position (b). By the action of the lock mechanism 10, the operation of causing the paper holding unit 2 to act on the stationary punching blade 31 and the cutting blade 32 and allowing the blade 3 to penetrate the paper P can be smoothly performed. The cutting blade 31 and the cutting blade 32 after the operation of operating the blade 3 with respect to the stationary paper holding unit 2 are retracted so that the cutting blade 31 and the cutting blade 32 are extracted from the paper P by a certain dimension L by the action of Holding in position (g) It can be.

<Other embodiments>
Note that the binding machine of the present invention is not limited to the above-described embodiment, and includes ones corresponding to the timing charts shown in FIGS. 7, 9, 12, and 15. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st embodiment, or it corresponds, and description is abbreviate | omitted. Moreover, the one-dot chain line in each timing chart has shown the repulsive force of the spring which is a spring in the conventional binding machine.

<Second Embodiment (FIG. 7)>
This binding machine is configured such that the drive mechanism 4 moves as shown in the timing chart shown in FIG. 7, and the timing at which the spring 5 as a spring is compressed is different from that in the first embodiment. That is, the drive mechanism 4 of the present embodiment is configured so that the spring 5 accumulates a repulsive force substantially in proportion to the operation in one direction applied to the handle 9.

  The binding machine 1 for realizing the timing chart shown in FIG. 7 is not particularly illustrated, but various configurations are conceivable.

<Third embodiment (FIGS. 8 and 9)>
This binding machine 1 is configured such that the drive mechanism 4 moves as shown in the timing chart of FIG. 9, and the arrangement of the sheet holding unit 2 and the blade 3 is different from that of the first embodiment. As a binding machine 1 for realizing such a timing chart, the one schematically shown in FIG. 8 can be considered.

  Specifically, the drive mechanism 4 according to the present embodiment is configured such that the paper drive member shown in the first embodiment is connected to the blade base 7 via a connecting member 44, and the blade drive member according to the present embodiment. 42, on the other hand, the blade driving member shown in the first embodiment is connected to the sheet holding unit 2 through the elevating member 45 and the arm 46 so as to be able to operate integrally. It functions as a paper drive member 41.

  That is, the blade 3 of the binding machine 1 is driven in the same manner as the paper holding unit of the first embodiment, while the paper holding unit 2 of the binding machine 1 is driven in the same manner as the blade of the first embodiment. . Therefore, the movement according to FIG. 5 of the first embodiment is performed. More specifically, the driving mechanism 4 holds the cutting blade 31 and the cutting blade 32 stationary by the operation force applied until the handle 9 reaches the intermediate position (b) from the operation start position (a). The cutting blade 31 and the cutting blade 31 are operated by the operation of operating the portion 2 to penetrate the blade 3 through the paper P and the operation force applied until the handle 9 reaches the operation end position (c) from the intermediate position (b). The operation of operating the paper holding unit 2 with respect to the stationary blade 3 is sequentially performed so that the insertion blade 32 is extracted from the paper P by a certain dimension L. Further, the first lock mechanism 10 that locks the paper holding unit 2 at a specific position where the paper 9 can penetrate the paper P only until the handle 9 reaches the intermediate position (b) from the operation start position (a), and the handle 9. Is provided with a second lock mechanism 11 that locks the sheet holding unit 2 that has reached the operation end position (c) beyond the intermediate position (b) and retracted by a predetermined dimension L.

  In addition, the dashed-two dotted line in a timing chart has shown the modification of the repulsive force of the spring 5 which is a spring. That is, instead of the drive mechanism 4 of the present embodiment, the spring 5 may be configured to store the repulsive force substantially in direct proportion to the operation in one direction applied to the handle 9.

<Fourth Embodiment (FIGS. 10, 11, and 12)>
The binding machine 1 is configured such that the drive mechanism 4 moves as shown in the timing chart shown in FIG. 12, and the movement of the sheet holding unit 2 and the blade 3 is different from that of the first embodiment. As a binding machine 1 for realizing such a timing chart, the one schematically shown in FIG. 10 can be considered.

  The blade 3 of the binding machine 1 is stationary at a predetermined position, while the sheet holding unit 2 of the binding machine 1 reciprocates between a standby position (d) and a penetrating position (e). The drive mechanism 4 of the present embodiment includes a paper drive member 41 for operating the paper holding unit 2 and an operation conversion mechanism for operating the paper drive member 41 in conjunction with the lifting and lowering operation of the handle 9. 43.

  The motion conversion mechanism 43 operates the paper drive member 41 with the operation force applied to the handle 9 at a timing as shown in FIG. 12, and when the operation force is de-energized, the spring 5 as a spring is repelled. For returning the paper drive member 41 and the handle 9 by force, for example, a configuration as schematically shown in FIG. That is, the motion conversion mechanism 43 in this embodiment has an elevating member 49 attached to the lower surface of the handle 9 and an intermediate portion rotatably attached to the lower end of the elevating member 49 and an end portion rotated to the connecting member 44. A lower stopper 50 that urges the paper drive member 41 that is attached from below is provided.

  In the present embodiment, the lock mechanism 13 for locking the paper drive member 41 at the first lock position (h) or the second lock position (i) is provided. The lock mechanism 13 locks the paper drive member 41 at the first lock position (h) until the handle 9 reaches the intermediate position (b) from the operation start position (a). The sheet drive member 41 is locked at the second lock position (i) only for a predetermined period from the operation end timing T3 beyond the maximum resistance timing T4, and is provided between the sheet drive member 41 and the elevating member 49. It has been. Therefore, the movement shown in FIG. 11 is performed. Reference numeral 62 denotes an upper stopper (not shown) that prohibits the sheet holding unit 2 from moving upward from the standby position (d).

  A two-dot chain line in the timing chart indicates a modification of the repulsive force of the spring 5. That is, instead of the drive mechanism 4 of the present embodiment, the spring 5 stores the repulsive force substantially in direct proportion to the operation in one direction applied to the handle 9, and then is held while maintaining the most compressed state. You may comprise as follows.

  In this embodiment, the paper holding unit 2 is reciprocated while the blade 3 is stationary. Conversely, the blade 3 is reciprocated while the paper holding unit 2 is stationary. You may make it make it.

<Fifth Embodiment (FIGS. 13, 14, and 15)>
The binding machine 1 is configured such that the drive mechanism 4 moves as shown in the timing chart of FIG. 15, and the movement of the sheet holding unit 2, the blade 3, and the handle 9 according to the first embodiment. Is different. As a binding machine 1 for realizing such a timing chart, the one schematically shown in FIG. 13 can be considered.

  The sheet holding unit 2 of the binding machine 1 is stationary at a predetermined position, while the blade 3 of the binding machine 1 reciprocates between a standby position (d) and a penetrating position (e). The drive mechanism 4 of the present embodiment is an operation conversion mechanism 43 for operating the blade drive member 42 in conjunction with the rotational operation of the handle 9, specifically, a cam surface attached to the lower surface of the handle 9. A cam 47 is provided in which 431 is brought into contact with the upper surface of the blade base 7. The cam surface 431 and the cam receiving surface 433 of the blade base 7 are set in a shape corresponding to the timing chart as shown in FIG. The motion converting mechanism 43 operates the blade drive member 42 at a timing as shown in FIG. 15 by an operating force applied to the handle 9, and when the operating force is de-energized, the spring 5 serving as a spring is operated. This is for returning the blade drive member 42 and the handle 9 by the repulsive force. For example, the blade drive member 42 and the handle 9 are configured as schematically shown in FIG.

  Further, the spring 5 of the present embodiment is disposed between the blade base 7 and the housing 6. Specifically, the spring 5 is a spring configured to operate the blade 3 with respect to the stationary paper holding portion 2 so that the punching blade 31 and the cutting blade 32 are extracted from the paper P by a certain dimension L. The auxiliary spring 12 and the intermediate member 52 are arranged in a straight line. In other words, the spring 5 is disposed between the lower surface of the connecting member 51 and the upper surface of the intermediate member 52 that are held on the blade base 7 so as to be able to operate integrally, and the auxiliary spring 12 is connected to the intermediate member 52. It is arranged between the lower surface of 52 and the bottom surface of the housing 6. This auxiliary spring 12 may have a repulsive force that is small enough to return the unloaded blade base 7 released from the urging force applied to the handle 9 by a certain dimension L, and has the timing shown in FIG. In the chart, it is indicated by a two-dot chain line.

  Moreover, in this embodiment, the 1st locking mechanism 10 for locking in the state which maximized the repulsive force of the spring 5, and the 2nd locking mechanism for locking in the state which can exhibit the repulsive force of the spring 5 11. The first locking mechanism 10 keeps the distance between the blade base 7 and the intermediate member 52 constant only while the handle 9 reaches the operation end position (c) from the intermediate position (b). 51 and the intermediate member 52 are provided. The second lock mechanism 11 locks the intermediate member 52 at a predetermined position only during a predetermined period when the handle 9 exceeds the maximum resistance timing T4 from the operation end timing T3. It is provided in between. Therefore, the movement shown in FIG. 14 is performed.

  In this embodiment, the deepest penetration timing T2 and the operation end timing T3 are set at the same time, and the maximum repulsive force timing is set between the operation end timing T3 and the maximum resistance timing T4. is there. In other words, the maximum repulsive force timing at which the repulsive force of the spring 5 that contributes to extracting the blade 3 from the paper P is maximized is displaced after the deepest penetration timing T2 at which the blade 3 penetrates the paper P most deeply. Thus, it is configured to approach the maximum resistance timing T4 at which the resistance when the blade 3 is extracted from the paper P is maximized.

  In this embodiment, the blade 3 is reciprocated while the paper holding unit 2 is stationary. On the contrary, the paper holding unit 2 is reciprocated while the blade 3 is stationary. You may comprise.

<Other variations>
Further, in the above-described embodiment, the operation of the operating body is described manually. For example, the operation body is operated by a solenoid, or the operation body is operated electrically. Good. Even in this case, it is not necessary to apply the energy for penetrating the blade and the energy for extracting the blade at the same time. The effect that it can respond is acquired. That is, when an operation force is mechanically applied using a motor or the like, the region to which energy is applied can be dispersed between the time when the blade is penetrated and the time when the blade is extracted. Therefore, it can be driven by a relatively small motor, which can contribute to downsizing of the binding machine.

  The operating body is not limited to the reciprocating lever shown in the present embodiment, but may be a dial type that rotates in one direction, a slider type that linearly operates, or the like.

  The binding machine may be provided with a plurality of cutting blades or a plurality of cutting blades. For example, a single cutting blade for forming a plurality of cut and raised pieces and a plurality of cutting blades corresponding to the plurality of cut and raised pieces, or a plurality of pieces for forming a plurality of cut and raised pieces And a plurality of cutting blades for forming a plurality of cut and raised pieces, and a plurality of cutting blades for forming a plurality of cut and raised pieces. The number of cutting blades corresponding to the plurality of cutting and raising pieces may be provided.

  Further, the projecting and retracting directions of these cutting blades and punching blades are not limited to those in which the projecting side of the cutting blade and punching blade is upward and the immersion side is downward, as shown in the above-described embodiment. It is also possible to use the cutting blade and the cutting blade as the lower side and the immersive side as the upper side. Further, the moving direction of the punching blade and the cutting blade is such that the punching hole and the cut hole are formed by temporarily moving downward, or the punching hole and the cut hole are moved by moving in the left-right direction or the oblique direction. It may be formed. For example, the thing of the specification which turned upside down from the thing of embodiment mentioned above is also considered. In the binding machine of this specification, “upward”, “downward”, “upward”, “downward”, “upper surface”, or “lower surface” in the above-described embodiments are respectively referred to as “downward”, “upward”, and “downward”. , “Rise”, “lower surface”, or “upper surface”.

  As long as the paper is in sheet form, various changes such as paper or plastic can be made. In addition, if a plurality of sheet bodies made of the same quality material are bound, it is possible to reduce the trouble in sorting and discarding.

  The blade unit may have not only a three-piece structure of a cutting blade, a cutting blade and an inner cam, but also a two-piece structure of a cutting blade and a cutting blade. At this time, it is preferable that the punching blade is provided so as to be rotatable between a punching posture and a rotating posture, and a punching hole can be formed in the punching posture.

  In addition, various changes may be made without departing from the spirit of the present invention.

P ... Paper P1 ... Punching hole P2 ... Cut hole P5 ... Cut raised piece P51 ... Tip 1 ... Binding machine T2 ... Deepest penetration timing T3 ... Operation end timing T4 ... Maximum resistance timing 2 ... Paper holding part 3 ... Blade 31 ... Punching blade 32 ... Cutting blade 4 ... Drive mechanism 5 ... Spring
9 ... Actuator (handle)
(A) ... operation start position (b) ... intermediate position (c) ... operation end position 10 ... first lock mechanism 11 ... second lock mechanism L ... fixed dimension

Claims (7)

A sheet holding unit that holds a plurality of sheets, a blade that penetrates the sheet held by the sheet holding unit, and the blade and the sheet holding unit are relatively moved by using an operation force applied to an operating body. After reaching the operation end timing at which the repulsive force is accumulated by using a part of the operating force applied to the operating mechanism and the operating body and the operating force is de-energized, the blade is pulled out of the paper by the repulsive force. And a spring for binding the paper,
The operation end timing of the operating body can be reached between the deepest penetration timing at which the blade penetrates the paper most deeply and the maximum resistance timing at which the extraction resistance when the blade is extracted from the paper is the largest. A binding machine characterized by The binding machine according to claim 1, wherein the spring has a displacement amount and a repulsive force that are substantially directly proportional. The binding machine according to claim 1 or 2, wherein the operating body is operated manually. A punching hole and a cut hole are formed in a plurality of sheets, and the leading end portion of the cut and raised piece that is cut and raised from the punched hole is inserted into the cut hole. A plurality of sheets can be bound to each other, and the blades are a cutting blade for forming the punching hole and a cutting blade for forming the cut hole. The binding machine according to 1, 2, or 3. The operating body operates within a range from the operation start position to the operation end position via the intermediate position,
Between the standby state in which the blade and the paper holding part are separated from each other by the operation force applied until the operating body reaches the intermediate position from the operation start position, and the penetration state in which the blade penetrates the paper. The blade and the paper holding portion are relatively moved so that the blade is pulled out from the paper by a certain size by the operation of the actuator and the operation force applied until the operating body reaches the operation end position from the intermediate position. The binding machine according to claim 1, 2, 3, or 4, wherein the movement operation is sequentially performed. The operating body operates within a range from the operation start position to the operation end position via the intermediate position,
The drive mechanism operates the paper holding unit with respect to the stationary blade by the operation force applied until the operating body reaches the intermediate position from the operation start position, and causes the paper to penetrate the blade. The operation force applied until the blade reaches the operation end position from the intermediate position is configured to sequentially perform an operation of operating the blade with respect to the stationary paper holding unit so that the blade is pulled out from the paper by a certain size. Is,
A first locking mechanism that locks the blade at a specific position where the blade can penetrate the paper only until the operating body reaches the intermediate position from the operation start position, and the operating body reaches the operation end position beyond the intermediate position and is constant. 6. The binding machine according to claim 1, further comprising a second lock mechanism for locking the blade whose dimensions are retracted. A sheet holding unit that holds a plurality of sheets, a blade that penetrates the sheet held by the sheet holding unit, and the blade and the sheet holding unit are relatively moved by using an operation force applied to an operating body. After reaching the operation end timing at which the repulsive force is accumulated by using a part of the operating force applied to the operating mechanism and the operating body and the operating force is de-energized, the blade is pulled out of the paper by the repulsive force. And a spring for binding the paper,
When the blade is removed from the paper by displacing the maximum repulsive force timing at which the repulsive force of the spring that contributes to removing the blade from the paper is greatest after the deepest penetration timing at which the blade penetrates the paper deepest. A binding machine characterized by being configured to be close to the maximum resistance timing at which the resistance becomes maximum.

Images