Seal device

Abstract

To provide a seal device capable of heat-sealing and cutting a packaging material by operating one operation part.SOLUTION: A seal device comprises a first nipping part and a second nipping part that nip a packaging material, a cutting part that cuts the packaging material, an operation part operated in an operation direction, and a transmission part that transmits force applied to the operation part to the first nipping part and the cutting part in such a manner that the first nipping part and the cutting part move in motion directions from initial positions by operating the operation part in the operation direction. At least one of the first nipping part and the second nipping part comprises a heating part for heat-sealing the packaging material. The transmission part comprises a holding part for making the cutting part hold the first nipping part in such a manner that the first nipping part moves in the motion direction with the cutting part. The holding part comprises an elastically deformable holding elastic part in such a manner that the cutting part moves in the motion direction with respect to the first nipping part after the first nipping part moves in the motion direction to a position where the first nipping part nips the packaging part with the second nipping part.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] This specification relates to a sealing device.

Background Art

[0002] Conventionally, for example, a sealing device includes a first clamping portion and a second clamping portion that sandwich a packaging material, and a cutting portion that cuts the packaging material. And the first clamping portion includes a heating portion that heat-seals the packaging material (for example, Patent Document 1).

[0003] In the sealing device according to Patent Document 1, when the first operation portion is operated, the first clamping portion moves to a position where it sandwiches the packaging material with the second clamping portion. Therefore, the packaging material is heat-sealed by the heating portion, and then, when a second operation portion different from the first operation portion is operated, the cutting portion cuts the packaging material. By the way, there is a demand to perform heat-sealing and cutting of the packaging material by operating one operation portion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the problem is to provide a sealing device capable of performing heat-sealing and cutting of a packaging material by operating one operation portion.

Means for Solving the Problems

[0006] [1] The sealing device includes a first clamping portion and a second clamping portion that sandwich a packaging material, a cutting portion that cuts the packaging material, an operation portion that is operated in an operation direction, A transmission unit that transmits the force applied to the operation unit to the first clamping unit and the cutting unit so that when the operation unit is operated in the operation direction, the first clamping unit and the cutting unit move from the initial position in the operation direction. At least one of the first clamping unit and the second clamping unit includes a heating unit that heat-seals the packaging material. The transmission unit includes a holding unit that holds the first clamping unit by the cutting unit so that the first clamping unit moves in the operation direction together with the cutting unit. The holding unit includes a holding elastic part that is elastically deformable so that after the first clamping unit moves in the operation direction to a position where it clamps the packaging material with the second clamping unit, the cutting unit moves in the operation direction with respect to the first clamping unit.

[0007] [2] Also, in the sealing device of the above [1], The holding elastic part is arranged between the cutting unit and the first clamping unit in the operation direction and elastically deforms in the operation direction. Such a configuration may be used.

[0008] [3] Also, in the sealing device of the above [2], The first clamping unit includes a clamping receiving part that is arranged on the operation direction side of the holding elastic part and receives the elastic restoring force in the operation direction from the holding elastic part. The cutting unit includes a cutting receiving part that is arranged on the reaction operation direction side, which is the direction opposite to the operation direction, of the holding elastic part and receives the elastic restoring force in the reaction operation direction from the holding elastic part. The first clamping unit includes a clamping abutting part that abuts the cutting unit from the reaction operation direction side so that the first clamping unit moves together with the cutting unit until it moves to the clamping position. The holding elastic part is elastically deformed in the operation direction in a state where the clamping abutting part abuts the cutting unit. Such a configuration may be used.

[0009] [4] Also, in the sealing device of the above [2] or [3], The operation unit is rotationally operated so that the operation direction is the rotational direction, The transmission unit a cutting rotary part that rotates in the operation direction by transmitting the force in the operation direction from the operation unit, a cutting string body wound around the cutting rotary part, connecting the cutting rotary part and the cutting part, and moving the cutting part in the operation direction when the cutting rotary part rotates in the operation direction, is provided. Such a configuration may be employed.

[0010] [5] Further, in the sealing device of the above [1], The operation unit is rotationally operated so that the operation direction is the rotational direction, The holding unit a cutting rotary part that rotates in the operation direction by transmitting the force in the operation direction from the operation unit, a clamping rotary part that is connected to the cutting rotary part by the holding elastic part, rotates in the operation direction by transmitting the force in the operation direction from the cutting rotary part through the holding elastic part, and transmits a force to the first clamping part so as to move the first clamping part in the operation direction, is provided. Such a configuration may be employed.

[0011] [6] Further, in the sealing device of the above [5], The holding unit a cutting string body wound around the cutting rotary part, connecting the cutting rotary part and the cutting part, and moving the cutting part in the operation direction when the cutting rotary part rotates in the operation direction, a clamping string body wound around the clamping rotary part, connecting the clamping rotary part and the first clamping part, and moving the first clamping part in the operation direction when the clamping rotary part rotates in the operation direction, is provided. Such a configuration may be employed.

[0012] [7] Also, in any one of the sealing devices of [1] to [6] above, the operation unit is rotationally operated so that the operation direction becomes the rotational direction, the transmission unit includes an operation rotation unit that rotates in the operation direction by receiving the force in the operation direction from the operation unit, the sealing device, a charging rotation unit rotatable in the operation direction, a clutch unit that transmits the force in the operation direction of the operation rotation unit to the charging rotation unit, a charging unit that moves from the initial position to the charging position where the content is charged into the packaging material by receiving the force in the operation direction from the charging rotation unit, a charging elastic unit that applies an elastic restoring force toward the initial position to the charging unit and increases the elastic restoring force as the charging unit moves from the initial position toward the charging position, the clutch unit cuts off the transmission to the charging rotation unit when the elastic restoring force of the charging elastic unit exceeds a set value when the charging unit is located at the charging position so that the charging unit returns from the charging position to the initial position by the elastic restoring force of the charging elastic unit, may be configured as such.

[0013] [8] Also, in the sealing device of [7] above, the operation unit moves in order to the first rotation position and the second rotation position by being rotationally operated in the operation direction from the operation start position, the charging unit, is located at the initial position when the operation unit is located at the operation start position, is located at the first charging position among the charging positions when the operation unit is located at the first rotation position, is located at the second charging position among the charging positions when the operation unit is located at the second rotation position, returns to the initial position by the clutch unit when located at the second charging position, the sealing device, A device stop portion that stops the operation portion at the first rotation position, and a moving mechanism that is capable of moving the operation portion between a stop position where it is stopped against the device stop portion and a retracted position where it is separated from the device stop portion. Such a configuration may be used.

[0014] [9] Further, in any one of the sealing devices of the above [1] to [8], a sealing elastic portion that applies an elastic restoring force toward the initial position is provided to the first clamping portion and the cutting portion so that the first clamping portion and the cutting portion return to the initial position. Such a configuration may be used.

Brief Description of the Drawings

[0015]

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Mode for Carrying Out the Invention

[0016] In each drawing, the dimensions of the components may be enlarged or reduced with respect to the actual dimensions, for example, to facilitate understanding, and the dimensional ratios between the drawings may not match. In each drawing, a part of the components may be omitted, for example, to facilitate understanding.

[0017] Terms including ordinal numbers such as first, second, etc. are used to describe various components, but this term is used only for the purpose of distinguishing one component from another, and the components are not particularly limited by this term. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. Also, the ordinal numbers used in the following specification and drawings may be different from those described in the claims.

[0018] In the following description, the first direction D1 is also referred to as the front-rear direction (the first lateral direction) D1. Among the first direction D1, the direction of the arrow in the figure is defined as the front direction, and the direction opposite to the direction of the arrow in the figure is defined as the rear direction. Also, the second direction D2 is also referred to as the left-right direction (the second lateral direction) D2. Among the second direction D2, the direction of the arrow in the figure is defined as the left direction, and the direction opposite to the direction of the arrow in the figure is defined as the right direction.

[0019] Further, the third direction D3 is also referred to as the up-down direction D3. Among the third direction D3, the direction of the arrow in the figure is defined as the up direction, and the direction opposite to the direction of the arrow in the figure is defined as the down direction. Note that the use of front-rear and left-right is for the convenience of explanation, and of course, in the actual object, the front and rear may be reversed, or the left and right may be reversed.

[0020] Hereinafter, an embodiment of the sealing device will be described with reference to FIGS. 1 to 19. Note that the following embodiment is an example for helping the understanding of the configuration of the sealing device and does not limit the configuration of the sealing device.

[0021] As shown in FIGS. 1 and 2, the sealing device 1 may include, for example, a device main body 2 that seals and cuts a cylindrical packaging material X1 (see FIGS. 3 and 4 for example), and a rotary tray 3 that receives the content Y1 (see FIGS. 10 to 12 for example) accommodated inside the packaging material X1. The material of the packaging material X1 is not particularly limited, and for example, any material that can be welded by heating may be used. Also, the content Y1 is not particularly limited, and for example, it may be a solid such as a tablet or a confectionery.

[0022] The rotary tray 3 is a device for introducing the content Y1 into the inlet portion 10a of the device main body 2. The rotary tray 3 may include, for example, a tray main body portion 3a fixed to the device main body 2 as in the present embodiment, and a tray rotating portion 3b disposed on the tray main body portion 3a and rotatably connected to the tray main body portion 3a about the up-down direction D3.

[0023] For example, as in this embodiment, the tray main body portion 3a may be configured to include an opening 3c that overlaps with the insertion port portion 10a of the apparatus main body 2 in the vertical direction D3 view, and the tray rotating portion 3b may be configured to include a plurality of storage portions 3d for storing the content Y1. Thereby, when the tray rotating portion 3b rotates with respect to the tray main body portion 3a, the content Y1 stored in the storage portion 3d is inserted into the insertion port portion 10a via the opening 3c.

[0024] As shown in FIGS. 2 to 6, the apparatus main body 2 includes an insertion portion 4 for inserting the content Y1 (not shown in FIGS. 2 to 6) into the packaging material X1, a first clamping portion 5 and a second clamping portion 6 for clamping the packaging material X1, a cutting portion 7 for cutting the packaging material X1, a first operation portion 8 that is operated in the operation direction D4 for sealing and cutting the packaging material X1, and a transmission portion 9 that transmits the force to the first operation portion 8 to the first clamping portion 5 and the cutting portion 7.

[0025] Further, the apparatus main body 2 may include, for example, as in this embodiment, a main body portion 10 having an insertion port portion 10a, a blowing portion 11 for blowing air toward the packaging material X1, a second operation portion 12 that is operated to feed out the packaging material X1, a clamping guide portion 13 for guiding the first clamping portion 5, a position detection portion 14 for detecting the position of the first clamping portion 5, and a control portion 15 for controlling the apparatus.

[0026] The main body portion 10 may include, for example, as in this embodiment, an upper plate 10b having an insertion port portion 10a, a lower plate 10c serving as a base, a middle plate 10d disposed between the upper plate 10b and the lower plate 10c in the vertical direction D3, side plates 10e disposed at the ends in the front-rear direction D1 and the left-right direction D2, and a connecting plate 10f extending in the left-right direction D2 and connecting the side plates 10e to each other.

[0027] The first operation portion 8 may include, for example, as in this embodiment, a handle 8a that is rotationally operated about the left-right direction D2. Thereby, the operation direction D4 in which the first operation portion 8 is operated is a rotational direction about the left-right direction D2.

[0028] As shown in Fig. 5, the input unit 4 may include, for example, a tray 21 that receives the content Y1 (not shown in Fig. 5) input into the input port 10a, a hopper 22 that receives the content Y1 from the tray 21 and inputs the content Y1 into the inside of the packaging material X1, a bracket 24 fixed to the connection plate 10f of the main body 10, and a link 23 rotatably connected to the bracket 24 and the hopper 22, respectively. The tray 21 may be rotatably connected to the input port 10a about the left - right direction D2 by a shaft portion 21b, for example, as in this embodiment.

[0029] As shown in Fig. 6, for example, the first clamping portion 5 and the second clamping portion 6 may each extend longitudinally along the left - right direction D2 and face each other in the front - rear direction D1. Also, the first clamping portion 5 and the second clamping portion 6 may each have a pair with a gap in the up - down direction D3, for example, as in this embodiment.

[0030] The cutting portion 7 may, for example, extend longitudinally along the left - right direction D2 and be disposed between the up - down directions D3 of the pair of first clamping portions 5, 5, as in this embodiment. The first clamping portion 5 and the cutting portion 7 may be rotatably connected about the up - down direction D3 at their respective first ends 5a, 7a.

[0031] As shown in Figs. 5 to 8, the transmission unit 9 includes an operation rotation portion 31 that rotates in the operation direction D4 by receiving the force in the operation direction D4 from the first operation unit 8. The transmission unit 9 may, for example, include an operation shaft portion 32 fixed to the first operation unit 8 and the operation rotation portion 31, respectively, as in this embodiment. Thereby, when the first operation unit 8 rotates in the operation direction D4, the operation rotation portion 31 rotates in the operation direction D4 integrally with the operation shaft portion 32.

[0032] Further, the transmission unit 9 may include, for example, as in the present embodiment, a feeding operation unit 40 that operates the feeding unit 4 by transmitting the force in the operation direction D4 from the operation rotation unit 31, and a sealing operation unit 50 that operates the first clamping unit 5 and the cutting unit 7 by transmitting the force in the operation direction D4 from the operation rotation unit 31.

[0033] As shown in FIGS. 5 and 7, the feeding operation unit 40 includes a feeding rotation unit 41 that is rotatable in the operation direction D4, a clutch unit 42 that transmits the force in the operation direction D4 of the operation rotation unit 31 to the feeding rotation unit 41, and a feeding elastic unit 43 that applies an elastic restoring force toward the initial position (the position shown in FIG. 5) to the feeding unit 4. Further, the feeding operation unit 40 may include, for example, as in the present embodiment, a feeding shaft portion 44 that rotates integrally with the feeding rotation unit 41, and a rotation protruding portion 45 that protrudes from the feeding shaft portion 44 and rotates integrally with the feeding shaft portion 44.

[0034] The clutch unit 42 may include, for example, as in the present embodiment, a clutch elastic portion 42a that is fixed to the operation rotation unit 31 and abuts against the concave portion 41a of the feeding rotation unit 41. Thereby, when the force applied to the clutch unit 42 is equal to or less than the set value, the clutch unit 42 transmits the force of the operation rotation unit 31 to the feeding rotation unit 41, while when the force applied to the clutch unit 42 exceeds the set value, the clutch unit 42 blocks the transmission of the force of the operation rotation unit 31 to the feeding rotation unit 41.

[0035] For example, when the force applied to the clutch elastic portion 42a is equal to or less than the set value, the clutch elastic portion 42a abuts against the concave portion 41a of the feeding rotation unit 41, so that the force of the operation rotation unit 31 is transmitted to the feeding rotation unit 41. On the other hand, for example, when the force applied to the clutch elastic portion 42a exceeds the set value, the clutch elastic portion 42a elastically deforms, so that the abutment of the concave portion 41a of the feeding rotation unit 41 by the clutch elastic portion 42a is released, and thus the force of the operation rotation unit 31 is not transmitted to the feeding rotation unit 41. Note that the clutch unit 42 is not limited to such a configuration, and may be, for example, a torque limiter.

[0036] The input elastic part 43 may include, for example, as in this embodiment, a tray elastic part 43a that applies an elastic restoring force to the tray 21 and a hopper elastic part 43b that applies an elastic restoring force to the hopper 22. Thereby, the tray elastic part 43a applies an elastic restoring force toward the initial position (the position shown in FIG. 5) to the tray 21, and the hopper elastic part 43b applies an elastic restoring force toward the initial position (the position shown in FIG. 5) to the hopper 22.

[0037] The tray elastic part 43a is not particularly limited. For example, as in this embodiment, it may be a torsion spring with each end abutted against the tray 21 and the inlet part 10a of the main body part 10 respectively. Also, the hopper elastic part 43b is not particularly limited. For example, as in this embodiment, it may be a torsion spring with each end abutted against the link 23 and the connection plate 10f of the main body part 10 respectively.

[0038] For example, as in this embodiment, the rotation protrusion part 45 may be configured to include a convex tray guide part 45a for guiding the tray 21, and the tray 21 may be configured to include a rail-shaped guided part 21a guided by the tray guide part 45a. Also, for example, as in this embodiment, the rotation protrusion part 45 may be configured to include a hole-shaped hopper guide part 45b for guiding the hopper 22, and the hopper 22 may be configured to include a convex guided part 22a guided by the hopper guide part 45b.

[0039] As shown in FIGS. 6 to 8, the seal operation part 50 includes a holding part 51 that holds the first clamping part 5 by the cutting part 7 so that the first clamping part 5 moves together with the cutting part 7, and a seal elastic part 52 that applies an elastic restoring force toward the initial position (the position in FIG. 6) to the first clamping part 5 and the cutting part 7. Although not particularly limited, for example, in this embodiment, the operation direction D5 in which the first clamping part 5 and the cutting part 7 move for sealing and cutting is the front-rear direction D1 (specifically, the rear direction).

[0040] Also, although not particularly limited, for example, in the present embodiment, the seal elastic portion 52 elastically deforms in the front-rear direction D1. The seal elastic portion 52 is not particularly limited, and for example, like in the present embodiment, it may be a helical spring with each end connected to the cutting portion 7 and the side plate 10e (not shown in FIGS. 6 to 8) of the main body portion 10, respectively.

[0041] The holding portion 51 includes a cutting rotation portion 53 that rotates in the operation direction D4 by transmitting the force in the operation direction D4 from the operation rotation portion 31, a cutting string body 54 that connects the cutting rotation portion 53 and the cutting portion 7 and is wound around the cutting rotation portion 53, a clamping rotation portion 55 that rotates in the operation direction D4, clamping string bodies 56, 57 that connect the clamping rotation portion 55 and the first clamping portion 5 and are wound around the clamping rotation portion 55, and a holding elastic portion 58 that connects the cutting rotation portion 53 and the clamping rotation portion 55.

[0042] For example, like in the present embodiment, the first end portion of the cutting string body 54 may be connected to the second end portion 7b of the cutting portion 7 by a screw member 61, and the second end portion of the cutting string body 54 may be connected to the outer periphery of the cutting rotation portion 53 by a screw member 62. Also, for example, like in the present embodiment, the first end portions of the clamping string bodies 56, 57 may be connected to the end portions 5a, 5b of the first clamping portion 5 by screw members 63, 64, and the second end portions of the clamping string bodies 56, 57 may be connected to the outer periphery of the clamping rotation portion 55 by a screw member 65.

[0043] The cutting string body 54 and the clamping string bodies 56, 57 may be formed in a belt-like (belt-shaped) manner, for example, like in the present embodiment. Note that it is not limited to such a configuration, and the cutting string body 54 and the clamping string bodies 56, 57 may have a configuration that can be deformed so that the length does not change, and may be formed in a string-like (rope-like) manner, for example. Also, the seal operation portion 50 may include a string body guide portion 59 that guides the cutting string body 54 and the clamping string bodies 56, 57, for example, like in the present embodiment.

[0044] The cutting rotation part 53 may include, for example, as in this embodiment, a plate-shaped rotation part main body 53a and a first contact part 53b that protrudes from the rotation part main body 53a in the left-right direction D2 and is applied to the operation rotation part 31 in the operation direction D4. Thus, when the operation rotation part 31 hits the first contact part 53b, the cutting rotation part 53 rotates in the operation direction D4 together with the operation rotation part 31.

[0045] Also, for example, as in this embodiment, the holding elastic part 58 applies an elastic restoring force in the operation direction D4 between the cutting rotation part 53 and the clamping rotation part 55. Specifically, the holding elastic part 58 applies an elastic restoring force in the direction opposite to the operation direction D4 to the cutting rotation part 53 and an elastic restoring force in the operation direction D4 to the clamping rotation part 55. And the cutting rotation part 53 may have, for example, as in this embodiment, a second contact part 53c that protrudes from the rotation part main body 53a in the left-right direction D2 and hits the clamping rotation part 55 in the operation direction D4.

[0046] Thus, since the clamping rotation part 55 is held by the cutting rotation part 53, the cutting rotation part 53 rotates in the operation direction D4 together with the clamping rotation part 55. The holding elastic part 58 is not particularly limited, but may be, for example, as in this embodiment, a torsion spring whose respective ends are inserted into the opening of the cutting rotation part 53 and the opening of the clamping rotation part 55.

[0047] The configuration of the sealing device 1 according to this embodiment is as described above. Next, the sealing and cutting method of the packaging material X1 of the sealing device 1 according to this embodiment will be described with reference to FIGS. 9 to 19. Note that the following method is exemplified to assist in understanding the sealing and cutting method etc. of the packaging material X1 of the sealing device 1, and does not limit the sealing and cutting method of the packaging material X1 of the sealing device 1.

[0048] First, the packaging material X1 according to this embodiment will be described with reference to FIG. 9.

[0049] As shown in FIG. 9, the packaging material X1 may include, for example, a cylindrical portion X1a formed in a cylindrical shape and a connecting portion X1b that connects the cylindrical portions X1a, X1a. For example, the packaging material X1 may be formed by cutting out a portion that becomes the connecting portion X1b from a cylindrical material. Note that the packaging material X1 is not limited to such a configuration.

[0050] Next, the operation of the input unit 4 according to the present embodiment will be described with reference to FIGS. 10 to 12.

[0051] First, when the second operation unit 12 (see FIGS. 2 to 4) is operated, the packaging material X1 is sent out to the set position. Although not particularly limited, for example, a sensor for detecting the packaging material X1 may be provided, and when a specific portion (for example, the tip position, mark position, notch position, etc.) of the packaging material X1 is located at a predetermined position, the sensor detects the specific portion, and a display lamp may be configured to light up.

[0052] As shown in FIG. 10, when there is no force applied to the first operation unit 8 and the first operation unit 8 is located at the operation start position P0, the input elastic portion 43 applies an elastic restoring force toward the initial position to the input unit 4. Therefore, the input unit 4 is located at the initial position. Specifically, since the tray elastic portion 43a applies an elastic restoring force to the tray 21 and the hopper elastic portion 43b applies an elastic restoring force to the hopper 22, the tray 21 and the hopper 22 are each located at the initial position.

[0053] At this time, since the blower unit 11 is blowing air toward the packaging material X1, the inside of the cylindrical portion X1a disposed at the tip of the packaging material X1 is expanded. Note that, as will be described later, the lower end portion of the cylindrical portion X1a disposed at the tip is heat-sealed during the previous operation.

[0054] When the first operation unit 8 is powered and rotated in the operation direction D4, the clutch unit 42 transmits the force in the operation direction D4 of the operation rotation unit 31 to the input rotation unit 41. Therefore, the input rotation unit 41 rotates in the operation direction D4. As a result, since the rotation protrusion 45 rotates in the operation direction D4 together with the input rotation unit 41, the guided portions 21a and 22a of the tray 21 and the hopper 22 are respectively guided by the guide portions 45a and 45b of the rotation protrusion 45.

[0055] Thereafter, as shown in FIG. 11, when the first operation unit 8 is rotated in the operation direction D4 by the first angle θ1 to the first rotation position P1, the tray 21 and the hopper 22 move to the first input position. As a result, the content Y1 falls from the tray 21, passes through the inside of the hopper 22, and is input into the inside of the packaging material X1. In this way, by transmitting the force in the operation direction D4 from the input rotation unit 41 to the input unit 4, the input unit 4 moves from the initial position to the first input position where the content Y1 is input into the packaging material X1.

[0056] By the way, as the input unit 4 moves toward the first input position, the elastic deformation amount of the input elastic unit 43 increases, so the elastic restoring force of the input elastic unit 43 becomes larger. Then, when the first operation unit 8 is rotated in the operation direction D4 by the second angle θ2 (θ2 > θ1) to the second rotation position P2, the input unit 4 is located at the second input position (not shown).

[0057] It should be noted that when the input unit 4 is located at the input position (specifically, a position between the first input position and the second input position), the content Y1 can be input into the inside of the packaging material X1. Also, although not particularly limited, for example, as in this embodiment, as the input unit 4 moves from the first input position to the second input position, the tray 21 further tilts with respect to the lateral directions D1 and D2, and the hopper 22 further moves downward. Such a configuration may be adopted.

[0058] When the input unit 4 is located at the second input position, the elastic restoring force of the input elastic part 43 will exceed the set value, so the clutch part 42 cuts off the transmission to the input rotating part 41. Specifically, when the input unit 4 is located at the second input position, due to the elastic restoring force of the input elastic part 43, as shown in Fig. 12, the clutch elastic part 42a is elastically deformed, so the abutment of the concave part 41a of the input rotating part 41 by the clutch elastic part 42a is released. As a result, the tray 21 and the hopper 22 of the input unit 4 will return from the second input position to the initial position due to the elastic restoring force of the input elastic part 43.

[0059] Next, the operations of the first clamping part 5 and the cutting part 7 according to this embodiment will be described with reference to Figs. 13 to 19.

[0060] As shown in Figs. 13 and 14, when the first operation part 8 is located at the operation start position P0 without being applied with force, the seal elastic part 52 applies an elastic restoring force towards the initial position to the first clamping part 5 and the cutting part 7. As a result, the first clamping part 5 and the cutting part 7 are located at the initial position. Note that the second clamping part 6 is provided with a heating part 6a for heat-sealing the packaging material X1.

[0061] Then, when the first operation part 8 is applied with force and rotated in the operation direction D4 by an angle θ3 (not shown) to the third rotation position P3 (not shown), the operation rotating part 31 hits the first contact part 53b of the cutting rotating part 53. As a result, when the first operation part 8 is further rotated in the operation direction D4 from the third rotation position P3, the cutting rotating part 53 rotates in the operation direction D4 together with the operation rotating part 31.

[0062] Since the holding elastic part 58 connects the cutting rotating part 53 and the clamping rotating part 55, the force of the cutting rotating part 53 in the operation direction D4 is transmitted to the clamping rotating part 55 via the holding elastic part 58. As a result, the clamping rotating part 55 rotates in the operation direction D4 together with the cutting rotating part 53.

[0063] Then, as the cutting rotating part 53 rotates in the operation direction D4, the cutting string body 54 is wound around the outer periphery of the cutting rotating part 53, and as the clamping rotating part 55 rotates in the operation direction D4, the clamping string bodies 56, 57 are wound around the outer periphery of the clamping rotating part 55. As a result, the first clamping part 5, together with the cutting part 7, moves from the initial position in the front-rear direction D1 (specifically, the rear direction), which is the operation direction D5).

[0064] Note that the third angle θ3 may be, for example, larger than the first angle θ1 and the second angle θ2, or may be, for example, smaller than the first angle θ1 and the second angle θ2, or may be, for example, the same as the first angle θ1 and the second angle θ2. The magnitude relationship between the first angle θ1, the second angle θ2, and the third angle θ3 is not particularly limited as long as it is set, for example, so that the operations of the first clamping part 5 and the cutting part 7 do not interfere with the operation of the input part 4.

[0065] Thereafter, as shown in FIGS. 15 and 16, the first operation part 8 is rotated in the operation direction D4 by the fourth angle θ4 (θ4>θ1, θ4>θ2, θ4>θ3) to the fourth rotation position P4, whereby the first clamping part 5 moves in the operation direction D5 to the clamping position where it clamps the packaging material X1 with the second clamping part 6. As a result, the packaging material X1 is heat-sealed by the heating part 6a of the second clamping part 6.

[0066] Specifically, the lower heating part 6a heat-seals the upper end part of the cylindrical part X1a arranged at the tip, and the upper heating part 6a heat-seals the lower end part of the cylindrical part X1a arranged second from the tip. In FIG. 16 (the same applies to FIGS. 18 and 21), the packaging material X1 is not shown.

[0067] Also, for example, in the case of this embodiment, when the position detection unit 14 detects the first clamping part 5 located at the clamping position, the control unit 15 (see FIG. 4) may be configured to cause the heating part 6a to generate heat. Although not particularly limited, for example, the position detection unit 14 may be various sensors (for example, contact sensors, photoelectric sensors, proximity sensors, etc.), and, for example, the heating part 6a may be formed of a conductive heating material (for example, nichrome) that generates heat by being impulsively energized (flowing a large current instantaneously).

[0068] By the way, when the first clamping part 5 is located at the clamping position, the first clamping part 5 is stopped by the second clamping part 6. Therefore, when the first operation part 8 continues to be rotated in the operation direction D4, the holding elastic part 58 is elastically deformed, and the cutting rotation part 53 rotates in the operation direction D4 with respect to the clamping rotation part 55. As a result, the cutting part 7 moves in the operation direction D5 with respect to the first clamping part 5. Specifically, the cutting part 7 rotates along the front-rear direction D1 (specifically, the rear direction), which is the operation direction D5, with the first end part 7a as the axis with respect to the first clamping part 5.

[0069] Thereafter, as shown in FIGS. 17 and 18, when the first operation part 8 is rotated in the operation direction D4 by the fifth rotation angle θ5 (θ5 > θ4) to the fifth rotation position P5, since the cutting part 7 moves with respect to the first clamping part 5, the cutting part 7 moves to the cutting position. As a result, the connecting part X1b (see FIG. 9) of the packaging material X1 is cut by the cutting part 7.

[0070] Note that since the first clamping part 5 and the second clamping part 6 are each provided in a pair with a gap in the vertical direction D3, when the first clamping part 5 and the second clamping part 6 sandwich the packaging material X1, tension can be applied to the portion of the packaging material X1 in the gap (specifically, the connecting part X1b). Therefore, it is easy to cut the packaging material X1 with the cutting part 7.

[0071] And since the seal elastic part 52 applies an elastic restoring force toward the initial position to the first clamping part 5 and the cutting part 7, when the application of force to the first operation part 8 is stopped, as shown in Fig. 19, the first clamping part 5 and the cutting part 7 return to the initial position, and the first operation part 8 returns to the operation start position P0.

[0072] In this way, by operating one (the first) operation part 8, heat sealing and cutting of the packaging material X1 can be performed. Note that the operation of the second operation part 12 is for feeding out the packaging material X1, not for heat sealing and cutting the packaging material X1.

[0073] From the above, the sealing device 1 is, as in this embodiment, the first clamping part 5 and the second clamping part 6 that sandwich the packaging material X1, the cutting part 7 that cuts the packaging material X1, the operation part (in this embodiment, the first operation part) 8 that is operated in the operation direction D4, and a transmission part 9 that transmits the force to the operation part 8 to the first clamping part 5 and the cutting part 7 so that the first clamping part 5 and the cutting part 7 move from the initial position in the operation direction D5 when the operation part 8 is operated in the operation direction D4. At least one of the first clamping part 5 and the second clamping part 6 (in this embodiment, the second clamping part) 6 is provided with a heating part 6a that heat seals the packaging material X1. The transmission part 9 is provided with a holding part 51 that holds the first clamping part 5 by the cutting part 7 so that the first clamping part 5 moves in the operation direction D5 together with the cutting part 7. The holding part 51 is provided with an elastically deformable holding elastic part 58 so that the cutting part 7 moves in the operation direction D5 with respect to the first clamping part 5 after the first clamping part 5 moves in the operation direction D5 to the clamping position where the first clamping part 5 sandwiches the second clamping part 6 and the packaging material X1. such a configuration is preferable.

[0074] According to such a configuration, since the transmission unit 9 transmits the force to the operation unit (in this embodiment, the first operation unit) 8 to the first clamping unit 5 and the cutting unit 7, when the operation unit 8 is operated in the operation direction D4, the first clamping unit 5 and the cutting unit 7 move in the operation direction D5 from the initial position. At this time, since the holding unit 51 holds the first clamping unit 5 by the cutting unit 7, the first clamping unit 5 moves in the operation direction D5 together with the cutting unit 7.

[0075] Then, when the first clamping unit 5 moves in the operation direction D5 to the clamping position where it clamps the packaging material X1 with the second clamping unit 6, the packaging material X1 is heat-sealed by the heating unit 6a. Also, after the first clamping unit 5 is stopped at the clamping position by the second clamping unit 6, when the operation unit 8 continues to be operated in the operation direction D4, the holding elastic unit 58 elastically deforms.

[0076] As a result, since the cutting unit 7 moves in the operation direction D5 with respect to the first clamping unit 5, the packaging material X1 is cut by the cutting unit 7. Therefore, by operating one operation unit 8, heat-sealing and cutting of the packaging material X1 can be performed.

[0077] Also, in the sealing device 1, as in this embodiment, the operation unit (in this embodiment, the first operation unit) 8 is rotationally operated so that the operation direction D4 is the rotation direction, the holding unit 51 includes a cutting rotation unit 53 that rotates in the operation direction D4 by receiving the force in the operation direction D4 from the operation unit 8, and a clamping rotation unit 55 that is connected to the cutting rotation unit 53 by the holding elastic unit 58, rotates in the operation direction D4 by receiving the force in the operation direction D4 from the cutting rotation unit 53 via the holding elastic unit 58, and transmits a force to the first clamping unit 5 so as to move the first clamping unit 5 in the operation direction D5. Such a configuration is preferable.

[0078] According to such a configuration, when the operation unit (in this embodiment, the first operation unit) 8 is rotated in the operation direction D4, a force in the operation direction D4 is transmitted from the operation unit 8 to the cutting rotation unit 53, so that the cutting rotation unit 53 rotates in the operation direction D4 and transmits a force to the cutting unit 7. As a result, the cutting unit 7 moves in the operation direction D5.

[0079] On the other hand, since the clamping rotation unit 55 is connected to the cutting rotation unit 53 by the holding elastic unit 58, a force in the operation direction D4 is transmitted from the cutting rotation unit 53 to the clamping rotation unit 55 via the holding elastic unit 58. As a result, the clamping rotation unit 55 rotates in the operation direction D4 and transmits a force to the first clamping unit 5, so that the first clamping unit 5 moves in the operation direction D5 together with the cutting unit 7. After the first clamping unit 5 is stopped at the clamping position by the second clamping unit 6, the holding elastic unit 58 is elastically deformed, so that the cutting unit 7 moves in the operation direction D5 with respect to the first clamping unit 5.

[0080] Also, in the sealing device 1, as in this embodiment, the holding part 51 connects the cutting rotation unit 53 and the cutting unit 7, and includes a cutting string body 54 wound around the cutting rotation unit 53 so that the cutting unit 7 moves in the operation direction D5 when the cutting rotation unit 53 rotates in the operation direction D4, and connects the clamping rotation unit 55 and the first clamping unit 5, and includes clamping string bodies 56, 57 wound around the clamping rotation unit 55 so that the first clamping unit 5 moves in the operation direction D5 when the clamping rotation unit 55 rotates in the operation direction D4. Such a configuration is preferable.

[0081] According to such a configuration, the cutting string body 54 connects the cutting rotation unit 53 and the cutting unit 7. When the cutting rotation unit 53 rotates in the operation direction D4, the cutting string body 54 is wound around the cutting rotation unit 53, so that the cutting unit 7 moves in the operation direction D5.

[0082] Also, the clamping strings 56 and 57 connect the clamping rotating part 55 and the first clamping part 5. When the clamping rotating part 55 rotates in the operation direction D4, the clamping strings 56 and 57 are wound around the clamping rotating part 55, so that the first clamping part 5 moves in the operation direction D5 together with the cutting part 7.

[0083] Also, as in this embodiment, the sealing device 1 The operation part (the first operation part in this embodiment) 8 is rotationally operated so that the operation direction D4 becomes the rotation direction. The transmission part 9 includes an operation rotating part 31 that rotates in the operation direction D4 by receiving the force in the operation direction D4 from the operation part 8. The sealing device 1 An input rotating part 41 that can rotate in the operation direction D4, A clutch part 42 that transmits the force in the operation direction D4 of the operation rotating part 31 to the input rotating part 41, An input part 4 that moves from the initial position to the input position where the content Y1 is input into the packaging material X1 by receiving the force in the operation direction D4 from the input rotating part 41, An input elastic part 43 that applies an elastic restoring force toward the initial position to the input part 4 and increases the elastic restoring force as the input part 4 moves from the initial position toward the input position. The clutch part 42 cuts off the transmission to the input rotating part 41 when the elastic restoring force of the input elastic part 43 exceeds the set value when the input part 4 is located at the input position (the second input position in this embodiment) so that the input part 4 returns from the input position (the second input position in this embodiment) to the initial position by the elastic restoring force of the input elastic part 43. Such a configuration is preferable.

[0084] According to such a configuration, when the operation unit (in this embodiment, the first operation unit) 8 is rotated in the operation direction D4, the clutch unit 42 transmits the force in the operation direction D4 of the operation rotation unit 31 to the input rotation unit 41. Therefore, the input rotation unit 41 rotates in the operation direction D4. Then, when the force in the operation direction D4 is transmitted from the input rotation unit 41 to the input unit 4, the input unit 4 moves from the initial position to the input position where the content Y1 is input into the packaging material X1.

[0085] At this time, the input elastic part 43 applies an elastic restoring force toward the initial position to the input part 4. As the input part 4 moves from the initial position toward the input position, the elastic restoring force of the input elastic part 43 becomes larger. Thereby, when the input part 4 is located at the input position (in this embodiment, the second input position), since the elastic restoring force of the input elastic part 43 exceeds the set value, the clutch unit 42 cuts off the transmission to the input rotation unit 41. Therefore, the input part 4 returns from the input position (in this embodiment, the second input position) to the initial position by the elastic restoring force of the input elastic part 43.

[0086] Also, the sealing device 1, as in this embodiment, is preferably provided with a seal elastic part 52 that applies an elastic restoring force toward the initial position to the first clamping part 5 and the cutting part 7 so that the first clamping part 5 and the cutting part 7 return to the initial position. Such a configuration is preferable.

[0087] According to such a configuration, the seal elastic part 52 applies an elastic restoring force toward the initial position to the first clamping part 5 and the cutting part 7. Thereby, when the application of force to the operation unit (in this embodiment, the first operation unit) 8 is stopped, the first clamping part 5 and the cutting part 7 return to the initial position.

[0088] Note that the sealing device 1 is not limited to the configuration of the above-described embodiment, nor is it limited to the above-described effects. Further, the sealing device 1 can of course be variously modified within a range not departing from the gist of the present invention. For example, it goes without saying that one or more of the configurations and methods according to the following various modification examples can be arbitrarily selected and adopted in the configurations and methods according to the above-described embodiment.

[0089] (A) In the sealing device 1 according to the above-described embodiment, the operation direction D4 of the first operation unit 8 is a rotation direction and is different from the operation direction D5. However, the sealing device 1 is not limited to such a configuration.

[0090] For example, the operation direction D4 of the first operation unit 8 may be a linear direction. Further, for example, the operation direction D4 of the first operation unit 8 may be the same as the operation direction D5 of the first clamping unit 5 and the cutting unit 7. As an example of such a configuration, although not particularly limited, the sealing device 1 may have, for example, the configuration shown in FIGS. 20 and 21.

[0091] (B) Further, in the sealing device 1 according to the above-described embodiment, the holding unit 51 includes a cutting rotation unit 53 and a clamping rotation unit 55 connected to the cutting rotation unit 53 by a holding elastic unit 58. However, the sealing device 1 is not limited to such a configuration. As an example of such a configuration, although not particularly limited, the sealing device 1 may have, for example, the configuration shown in FIGS. 20 and 21, or may have, for example, the configuration shown in FIGS. 22 to 30.

[0092] (B-1) For example, as shown in FIGS. 20 and 21, the holding unit 51 may be configured only by a holding elastic unit 58 that connects the first clamping unit 5 and the cutting unit 7. Hereinafter, the configuration of the sealing device 1 according to FIGS. 20 and 21 will be described.

[0093] In the sealing device 1 according to FIG. 20, the first operation portion 8 is fixed to the second end portion 7b of the cutting portion 7. And the holding elastic portion 58 of the holding portion 51 connects the second end portion 7b of the cutting portion 7 and the second end portion 5b of the first clamping portion 5. Note that the first clamping portion 5 and the cutting portion 7 are rotatably connected to a main body portion 10 (not shown in FIG. 20) about the vertical direction D3 at the first end portions 5a and 7a.

[0094] According to such a configuration, as shown in FIG. 20, since the force applied to the first operation portion 8 is transmitted to the first clamping portion 5 and the cutting portion 7, when the first operation portion 8 is operated in the operation direction D4, the first clamping portion 5 and the cutting portion 7 move from the initial position in the operation direction D5, which is the same direction as the operation direction D4. At this time, since the holding portion 51 holds the first clamping portion 5 to the cutting portion 7, the first clamping portion 5 moves in the operation direction D5 together with the cutting portion 7. At this time, the holding elastic portion 58 is not elastically deformed.

[0095] Then, as shown in FIG. 21(a), when the first clamping portion 5 moves in the operation direction D5 to the clamping position where it clamps the second clamping portion 6 and the packaging material X1, the packaging material X1 is heat-sealed by the heating portion 6a. Thereafter, when the first operation portion 8 continues to be operated in the operation direction D4, since the first clamping portion 5 is stopped at the clamping position where it clamps the packaging material X1 to the second clamping portion 6, the holding elastic portion 58 elastically deforms in the operation direction D4 (operation direction D5).

[0096] At this time, the first clamping portion 5 and the second clamping portion 6 clamp the packaging material X1 with the magnitude of the elastic restoring force of the holding elastic portion 58. Therefore, when the cutting portion 7 moves in the operation direction D5 with respect to the first clamping portion 5, the packaging material X1 can be reliably clamped between the first clamping portion 5 and the second clamping portion 6.

[0097] Then, as shown in FIG. 21(b), since the cutting portion 7 moves in the operation direction D5 with respect to the first clamping portion 5, the packaging material X1 is cut by the cutting portion 7. Therefore, by operating one (first) operation portion 8, heat-sealing and cutting of the packaging material X1 can be performed.

[0098] Thus, in the sealing device 1, as shown in FIGS. 20 and 21, the holding elastic part 58 is arranged between the cutting part 7 and the first clamping part 5 in the operating direction D5 and elastically deforms in the operating direction D5. Such a configuration is preferable.

[0099] According to such a configuration, after the first clamping part 5 is stopped by the second clamping part 6 at the clamping position, the holding elastic part 58 elastically deforms, so that the cutting part 7 moves in the operating direction D5 with respect to the first clamping part 5. At this time, since the holding elastic part 58 is arranged between the cutting part 7 and the first clamping part 5 in the operating direction D5, the first clamping part 5 and the second clamping part 6 sandwich the packaging material X1 with the magnitude of the elastic restoring force of the holding elastic part 58. Thereby, the packaging material X1 can be reliably sandwiched between the first clamping part 5 and the second clamping part 6 by the elastic restoring force of the holding elastic part 58.

[0100] Note that the sealing device 1 according to the above embodiment has a configuration including an operation rotating part 31, a cutting rotating part 53, and a clamping rotating part 55 that rotate in the operation direction D4. However, for example, as shown in FIGS. 20 and 21, a configuration not including the operation rotating part 31, the cutting rotating part 53, and the clamping rotating part 55 that rotate in the operation direction D4 may also be adopted.

[0101] (B-2) For example, as shown in FIGS. 22 to 30, the holding part 51 may have a configuration including a holding elastic part 58 that is arranged between the first clamping part 5 and the cutting part 7 and is maintained in an elastically deformed state. Hereinafter, the configuration of the sealing device 1 according to FIGS. 22 to 30 will be described.

[0102] As shown in FIGS. 22 and 23, the seal operation unit 50 includes a holding unit 51 that holds the first clamping unit 5 by the cutting unit 7 so that the first clamping unit 5 moves together with the cutting unit 7, a seal elastic unit 52 that applies an elastic restoring force toward the initial position (the position in FIG. 23) to the first clamping unit 5 and the cutting unit 7, a cutting rotation unit 53 that rotates in the operation direction D4 by transmitting the force in the operation direction D4 from the operation rotation unit 31, and cutting strings 54, 54 that connect the cutting rotation unit 53 and the cutting unit 7 and are wound around the cutting rotation unit 53.

[0103] For example, the first end of the first cutting string 54 may be connected to the first end 7a of the cutting unit 7 by a screw member 61, the first end of the second cutting string 54 may be connected to the second end 7b of the cutting unit 7 by a screw member 61, and the second ends of the first and second cutting strings 54, 54 may be connected to the outer periphery of the cutting rotation unit 53 by a screw member 62.

[0104] Although not particularly limited, in FIGS. 22 and 23 (the same applies to FIGS. 24 to 30), the operation direction D5 in which the first clamping unit 5 and the cutting unit 7 move for sealing and cutting is the front-rear direction D1 (specifically, the rear direction). The direction opposite to the operation direction D5 is the reverse operation direction D6 (specifically, the front direction).

[0105] The holding unit 51 includes a holding elastic part 58 that can be elastically deformed so that the cutting unit 7 moves in the operation direction D5 with respect to the first clamping unit 5. The holding elastic part 58 is disposed between the cutting unit 7 and the first clamping unit 5 in order to transmit the force in the operation direction D5 of the cutting unit 7 to the first clamping unit 5.

[0106] The first clamping unit 5 includes a clamping receiving part 5c that is disposed on the operation direction D5 side of the holding elastic part 58 and receives the elastic restoring force in the operation direction D5 from the holding elastic part 58. The cutting unit 7 includes a cutting receiving part 7c that is disposed on the reverse operation direction D6 side of the holding elastic part 58 and receives the elastic restoring force in the reverse operation direction D6 from the holding elastic part 58. Thereby, the first clamping unit 5 and the cutting unit 7 receive an elastic restoring force that separates in the operation direction D5 (reverse operation direction D6) from the holding elastic part 58.

[0107] On the other hand, the first clamping part 5 is provided with a clamping and stopping part 5d that abuts the cutting part 7 from the side of the reverse operation direction D6. Thereby, the first clamping part 5 moves together with the cutting part 7 until it moves to the clamping position. After the first clamping part 5 is positioned at the clamping position, the cutting part 7 moves in the operation direction D5 with respect to the first clamping part 5.

[0108] Although not particularly limited, for example, the holding elastic part 58 may be a coil spring that elastically deforms in the operation direction D5 (reverse operation direction D6). Thereby, the first end part (the end part on the operation direction D5 side) of the holding elastic part 58 is held by the clamping receiving part 5c, and the second end part (the end part on the reverse operation direction D6 side) of the holding elastic part 58 is held by the cutting receiving part 7c.

[0109] Also, in a state where the clamping and stopping part 5d of the first clamping part 5 abuts the cutting part 7, the holding elastic part 58 is elastically deformed to contract in the operation direction D5 (reverse operation direction D6). Thereby, the holding elastic part 58 always applies an elastic restoring force in the operation direction D5 to the clamping receiving part 5c and applies an elastic restoring force in the reverse operation direction D6 to the cutting receiving part 7c.

[0110] Also, the cutting part 7 may include, for example, a cutting main body part 7d having a blade at the end on the operation direction D5 side, and a fixing part 7e that fixes the cutting main body part 7d and the cutting receiving part 7c. Note that the cutting receiving part 7c is arranged on the reverse operation direction D6 side of the cutting main body part 7d. Also, although not shown in the figure, the sealing device 1 may include, for example, a clamping guide part 13 that guides the first clamping part 5 in the operation direction D5, a cutting guide part that guides the cutting part 7 in the operation direction D5, a position detection part 14 that detects the first clamping part 5 positioned at the clamping position, and the like.

[0111] Next, the operations of the first clamping part 5 and the cutting part 7 according to FIGS. 22 and 23 will be described with reference to FIGS. 24 to 30.

[0112] As shown in FIGS. 24 and 25, when the first operation unit 8 is located at the operation start position P0 without being applied with an external force, the seal elastic part 52 applies an elastic restoring force toward the initial position to the first clamping part 5 and the cutting part 7. Thereby, the first clamping part 5 and the cutting part 7 are located at the initial positions. Note that the second clamping part 6 is provided with a heating part 6a for heat-sealing the packaging material X1.

[0113] Then, when the first operation unit 8 is applied with an external force and rotated in the operation direction D4 by a third angle θ3 (not shown) to the third rotation position P3 (not shown), the operation rotation part 31 hits the first contact part 53b of the cutting rotation part 53. Thereby, when the first operation unit 8 is further rotated in the operation direction D4 from the third rotation position P3, the cutting rotation part 53 rotates in the operation direction D4 together with the operation rotation part 31.

[0114] Further, when the cutting rotation part 53 rotates in the operation direction D4, the cutting string body 54 is wound around the outer periphery of the cutting rotation part 53. And since the cutting string body 54 connects the cutting rotation part 53 and the cutting part 7, the cutting part 7 moves in the operation direction D5.

[0115] At this time, since the holding elastic part 58 is disposed between the cutting part 7 and the first clamping part 5 in an elastically deformed state, and the clamping stopper part 5d abuts on the cutting part 7 from the reaction operation direction D6 side, the first clamping part 5 is held by the cutting part 7. Thereby, the first clamping part 5 moves in the operation direction D5 together with the cutting part 7.

[0116] Thereafter, as shown in FIGS. 26 and 27, when the first operation unit 8 is rotated in the operation direction D4 by a fourth angle θ4 (θ4>θ3) to the fourth rotation position P4, the first clamping part 5 moves in the operation direction D5 to the clamping position. Thereby, the packaging material X1 is heat-sealed by the heating part 6a of the second clamping part 6. Note that in FIG. 27 (the same applies to FIG. 29), the packaging material X1 is not shown.

[0117] Incidentally, when the first clamping portion 5 is positioned at the clamping position, the first clamping portion 5 is stopped by the second clamping portion 6. Therefore, when the first operation portion 8 is continuously rotated in the operation direction D4, the holding elastic portion 58 is elastically deformed, and the cutting portion 7 moves in the operation direction D5 with respect to the first clamping portion 5. At this time, since the cutting portion 7 moves away from the clamping stopper portion 5d, the first clamping portion 5 and the second clamping portion 6 sandwich the packaging material X1 with the magnitude of the elastic restoring force of the holding elastic portion 58.

[0118] Incidentally, in a state where the clamping stopper portion 5d is abutting against the cutting portion 7, the holding elastic portion 58 is elastically deformed. As a result, when the cutting portion 7 moves in the operation direction D5 with respect to the first clamping portion 5 and the cutting portion 7 moves away from the clamping stopper portion 5d, the elastic restoring force of the holding elastic portion 58 switches from the pushing force between the cutting portion 7 and the clamping stopper portion 5d to the clamping force between the first clamping portion 5 and the second clamping portion 6. Therefore, immediately after the cutting portion 7 moves with respect to the first clamping portion 5, the elastic restoring force of the holding elastic portion 58 acts between the first clamping portion 5 and the second clamping portion 6, so that the packaging material X1 can be reliably sandwiched between the first clamping portion 5 and the second clamping portion 6.

[0119] Thereafter, as shown in FIGS. 28 and 29, when the first operation portion 8 is rotated in the operation direction D4 by the fifth rotation angle θ5 (θ5 > θ4) to the fifth rotation position P5, the cutting portion 7 moves with respect to the first clamping portion 5, so that the cutting portion 7 moves to the cutting position. As a result, the connecting portion X1b (see FIG. 9) of the packaging material X1 is cut by the cutting portion 7.

[0120] And since the seal elastic portion 52 applies an elastic restoring force toward the initial position to the first clamping portion 5 and the cutting portion 7, when the force applied to the first operation portion 8 is stopped, as shown in FIG. 30, the first clamping portion 5 and the cutting portion 7 move in the reverse operation direction D6 and return to the initial position, and the first operation portion 8 returns to the operation start position P0. In this way, by operating one (first) operation portion 8, heat sealing and cutting of the packaging material X1 can be performed.

[0121] Thus, in the sealing device 1, as shown in FIGS. 22 to 30, the holding elastic portion 58 is disposed between the cutting portion 7 and the first clamping portion 5 in the operating direction D5 and elastically deforms in the operating direction D5. Such a configuration is preferable.

[0122] According to such a configuration, after the first clamping portion 5 is stopped by the second clamping portion 6 at the clamping position, the holding elastic portion 58 elastically deforms, so that the cutting portion 7 moves in the operating direction D5 with respect to the first clamping portion 5. At this time, since the holding elastic portion 58 is disposed between the cutting portion 7 and the first clamping portion 5 in the operating direction D5, the first clamping portion 5 and the second clamping portion 6 sandwich the packaging material X1 with the magnitude of the elastic restoring force of the holding elastic portion 58. Thereby, the packaging material X1 can be surely sandwiched between the first clamping portion 5 and the second clamping portion 6 by the elastic restoring force of the holding elastic portion 58.

[0123] Also, in the sealing device 1, as shown in FIGS. 22 to 30, the first clamping portion 5 is disposed on the operating direction D5 side of the holding elastic portion 58 and includes a clamping receiving portion 5c that receives the elastic restoring force in the operating direction D5 from the holding elastic portion 58. The cutting portion 7 is disposed on the reaction operating direction D6 side, which is the direction opposite to the operating direction D5, of the holding elastic portion 58 and includes a cutting receiving portion 7c that receives the elastic restoring force in the reaction operating direction D6 from the holding elastic portion 58. The first clamping portion 5 includes a clamping abutting portion 5d that abuts the cutting portion 7 from the reaction operating direction D6 side so as to move together with the cutting portion 7 until it moves to the clamping position. The holding elastic portion 58 elastically deforms in the operating direction D5 in a state where the clamping abutting portion 5d abuts the cutting portion 7. Such a configuration is preferable.

[0124] According to such a configuration, the clamping portion 5c is disposed on the operation direction D5 side of the holding elastic portion 58, and the holding elastic portion 58 applies an elastic restoring force in the operation direction D5 to the clamping portion 5c. Further, the cutting receiving portion 7c is disposed on the reaction operation direction D6 side of the holding elastic portion 58, and the holding elastic portion 58 applies an elastic restoring force in the reaction operation direction D6 to the cutting receiving portion 7c.

[0125] As a result, the first clamping portion 5 and the cutting portion 7 receive an elastic restoring force from the holding elastic portion 58 so as to move away in the operation direction D5 (reaction operation direction D6). On the other hand, since the clamping stopper portion 5d abuts on the cutting portion 7 from the reaction operation direction D6 side, the first clamping portion 5 is held by the cutting portion 7. As a result, the first clamping portion 5 moves together with the cutting portion 7 until it moves to the clamping position.

[0126] On the other hand, after the first clamping portion 5 is located at the clamping position, when the holding elastic portion 58 is further elastically deformed, the cutting portion 7 moves in the operation direction D5 with respect to the first clamping portion 5. At this time, since the cutting portion 7 separates from the clamping stopper portion 5d, the first clamping portion 5 and the second clamping portion 6 sandwich the packaging material X1 with the magnitude of the elastic restoring force of the holding elastic portion 58.

[0127] Incidentally, in a state where the clamping stopper portion 5d abuts on the cutting portion 7, the holding elastic portion 58 is elastically deformed. As a result, when the cutting portion 7 moves in the operation direction D5 with respect to the first clamping portion 5 and the cutting portion 7 separates from the clamping stopper portion 5d, the elastic restoring force of the holding elastic portion 58 switches from the pushing force between the cutting portion 7 and the clamping stopper portion 5d to the clamping force between the first clamping portion 5 and the second clamping portion 6. Therefore, immediately after the cutting portion 7 moves with respect to the first clamping portion 5, the elastic restoring force of the holding elastic portion 58 acts between the first clamping portion 5 and the second clamping portion 6, so that the packaging material X1 can be reliably sandwiched between the first clamping portion 5 and the second clamping portion 6.

[0128] Further, in the sealing device 1, as shown in FIGS. 22 to 30, the operation portion (the first operation portion in FIGS. 22 to 30) 8 is rotationally operated so that the operation direction D4 becomes the rotation direction, The transmission unit 9 includes a cutting rotation unit 53 that rotates in the operation direction D4 by transmitting the force in the operation direction D4 from the operation unit 8, and a cutting string body 54 wound around the cutting rotation unit 53 that connects the cutting rotation unit 53 and the cutting unit 7 so that when the cutting rotation unit 53 rotates in the operation direction D4, the cutting unit 7 moves in the operation direction D5. Such a configuration is preferable.

[0129] According to such a configuration, when the operation unit (in FIGS. 22 to 30, the first operation unit) 8 is rotated in the operation direction D4, the force in the operation direction D4 is transmitted, so that the cutting rotation unit 53 rotates in the operation direction D4. Further, since the cutting string body 54 connects the cutting rotation unit 53 and the cutting unit 7, when the cutting rotation unit 53 rotates in the operation direction D4, the cutting string body 54 is wound around the cutting rotation unit 53. As a result, the cutting unit 7 moves in the operation direction D5.

[0130] Further, as shown in FIGS. 22 to 30, the sealing device 1 includes a seal elastic part 52 that applies an elastic restoring force toward the initial position to the first clamping part 5 and the cutting part 7 so that the first clamping part 5 and the cutting part 7 return to the initial position. Such a configuration is preferable.

[0131] According to such a configuration, the seal elastic part 52 applies an elastic restoring force toward the initial position to the first clamping part 5 and the cutting part 7. As a result, when the application of force to the operation unit (in FIGS. 22 to 30, the first operation unit) 8 is stopped, the first clamping part 5 and the cutting part 7 return to the initial position.

[0132] (B-2-1) In the sealing device 1 according to FIGS. 22 to 30, the transmission unit 9 has a configuration including a cutting string body 54 that connects the cutting rotation unit 53 and the cutting unit 7 in order to move the cutting unit 7 in the operation direction D5. However, the sealing device 1 is not limited to such a configuration.

[0133] For example, the transmission unit 9 may be configured to include a link mechanism that connects the cutting rotation unit 53 and the cutting unit 7 in order to move the cutting unit 7 in the operation direction D5. Further, for example, the transmission unit 9 may be configured to include a guide mechanism that is fixed to the cutting rotation unit 53 and guides the cutting unit 7 in order to move the cutting unit 7 in the operation direction D5.

[0134] (B-2-2) Further, in the sealing device 1 according to FIGS. 22 to 30, the sandwiching receiving portion 5c is disposed on the operation direction D5 side of the holding elastic portion 58, the cutting receiving portion 7c is disposed on the reaction operation direction D6 side of the holding elastic portion 58, and the holding elastic portion 58 is configured to undergo an elastic deformation of contraction. However, the sealing device 1 is not limited to such a configuration.

[0135] For example, the sandwiching receiving portion 5c may be disposed on the reaction operation direction D6 side of the holding elastic portion 58, the cutting receiving portion 7c may be disposed on the operation direction D5 side of the holding elastic portion 58, and the holding elastic portion 58 may be configured to connect the sandwiching receiving portion 5c and the cutting receiving portion 7c. In such a configuration, as the cutting unit 7 moves in the operation direction D5 with respect to the first sandwiching portion 5, the holding elastic portion 58 may be configured to undergo an elastic deformation of elongation.

[0136] (B-2-3) Further, in the sealing device 1 according to FIGS. 22 to 30, the holding elastic portion 58 is configured to be elastically deformed in the operation direction D5 in a state where the sandwiching stopping portion 5d is stopping the cutting unit 7. However, the sealing device 1 is not limited to such a configuration. For example, the holding elastic portion 58 may be configured to be restored (not elastically deformed) in a state where the sandwiching stopping portion 5d is stopping the cutting unit 7.

[0137] (C) Further, in the sealing device 1 according to the above embodiment, the holding portion 51 is configured to include a cutting string body 54 that connects the cutting rotation unit 53 and the cutting unit 7 in order to move the cutting unit 7 in the operation direction D5. However, the sealing device 1 is not limited to such a configuration.

[0138] For example, the holding part 51 may be configured to include a link mechanism that connects the cutting rotation part 53 and the cutting part 7 in order to move the cutting part 7 in the operation direction D5. Also, for example, the holding part 51 may be configured to include a guide mechanism that is fixed to the cutting rotation part 53 and guides the cutting part 7 in order to move the cutting part 7 in the operation direction D5.

[0139] (D) Further, in the sealing device 1 according to the above embodiment, the holding part 51 is configured to include clamping strings 56 and 57 that connect the clamping rotation part 55 and the first clamping part 5 in order to move the first clamping part 5 in the operation direction D5. However, the sealing device 1 is not limited to such a configuration.

[0140] For example, the holding part 51 may be configured to include a link mechanism that connects the clamping rotation part 55 and the first clamping part 5 in order to move the first clamping part 5 in the operation direction D5. Also, for example, the holding part 51 may be configured to include a guide mechanism that is fixed to the clamping rotation part 55 and guides the first clamping part 5 in order to move the first clamping part 5 in the operation direction D5.

[0141] (E) Further, in the sealing device 1 according to the above embodiment, FIGS. 20 to 21, and FIGS. 22 to 30, the first clamping part 5 and the cutting part 7 move relative to the main body part 10, and the second clamping part 6 is fixed to the main body part 10 and is immovable relative to the main body part 10. However, the sealing device 1 is not limited to such a configuration.

[0142] For example, the first clamping part 5 and the cutting part 7 may move relative to the main body part 10, and the second clamping part 6 may also move relative to the main body part 10. In such a configuration, for example, the first clamping part 5 and the cutting part 7 and the second clamping part 6 may be movable in directions facing each other (approaching direction, separating direction).

[0143] (F) Further, in the sealing device 1 according to the above-described embodiment, FIGS. 20 to 21, and FIGS. 22 to 30, the heating part 6a is provided only in the second clamping part 6. However, the sealing device 1 is not limited to such a configuration. For example, the heating part may be provided only in the first clamping part 5, or, for example, the heating part may be provided in both the first clamping part 5 and the second clamping part 6 respectively.

[0144] (G) Further, in the sealing device 1 according to the above-described embodiment, FIGS. 20 to 21, and FIGS. 22 to 30, the first clamping part 5 and the second clamping part 6 are provided in a pair, separated from each other in the vertical direction D3. However, the sealing device 1 is not limited to such a configuration. For example, the first clamping part 5 and the second clamping part 6 may be provided one by one respectively. In such a configuration, although not particularly limited, for example, it is preferable to have a configuration that applies tension to at least the portion of the packaging material X1 that is cut at the cutting part 7.

[0145] (H) Further, in the sealing device 1 according to the above-described embodiment and FIGS. 22 to 30, the operation rotating part 31 is separate from the cutting rotating part 53, and the operation rotating part 31 and the cutting rotating part 53 rotate in the operation direction D4 individually. However, the sealing device 1 is not limited to such a configuration.

[0146] For example, the operation rotating part 31 may be fixed to the cutting rotating part 53, and the operation rotating part 31 and the cutting rotating part 53 may rotate integrally in the operation direction D4. Also, for example, the operation rotating part 31 may not be provided, and the cutting rotating part 53 may be fixed to the operation shaft part 32, so as to rotate integrally with the first operation part 8 in the operation direction D4.

[0147] (I) Further, the sealing device 1 according to the above embodiment has a configuration including the charging part 4. However, the sealing device 1 is not limited to such a configuration. For example, the sealing device 1 may have a configuration without the charging part 4. In such a configuration, although not particularly limited, for example, in a state where the content Y1 is accommodated inside the packaging material X1, the packaging material X1 may be set in the sealing device 1.

[0148] (J) Further, in the sealing device 1 according to the above embodiment, when the first operation part 8 is operated from the operation start position P0 to the fifth rotation position P5 (specifically, the second rotation position P2), the charging part 4 moves from the initial position to the charging position and then returns to the initial position. However, the sealing device 1 is not limited to such a configuration.

[0149] For example, when the first operation part 8 is operated from the operation start position P0 to the fifth rotation position P5, the charging part 4 may move from the initial position to the charging position and continue to stop at the charging position. In such a configuration, for example, the charging part 4 is configured so as not to interfere with the clamping parts 5 and 6 and the cutting part 7 at the charging position.

[0150] (K) Further, the sealing device 1 according to the above embodiment and FIGS. 22 to 30 has a configuration including the seal elastic part 52. However, the sealing device 1 is not limited to such a configuration. For example, the sealing device 1 may have a configuration without the seal elastic part 52. In such a configuration, for example, after the first operation part 8 is operated from the operation start position P0 to the fifth rotation position P5, the first operation part 8 may be manually operated to return from the fifth rotation position P5 to the operation start position P0.

[0151] (L) Further, for example, the sealing device 1 may have a configuration in which the first operation part 8 can be operated not only in the first operation direction D4 but also in the second operation direction D7. As an example of such a configuration, although not particularly limited, the sealing device 1 may have a configuration shown in FIGS. 31 to 35, for example.

[0152] (L-1) The configuration of the sealing device 1 according to FIGS. 31 to 35 will be described below.

[0153] As shown in FIGS. 31 to 33, the main body 10 includes a first device abutting portion 10g that abuts the first operation portion 8 at the first rotation position P1 in the first operation direction D4. Further, the main body 10 may include, for example, a second device abutting portion 10h that abuts the first operation portion 8 at the operation start position P0 in the direction opposite to the first operation direction D4.

[0154] The sealing device 1 includes a moving mechanism 33 that is capable of moving the first operation portion 8 between an abutting position (the positions in FIGS. 32 and 33(a)) where it abuts against the device abutting portions 10g and 10h and a retracted position (the position in FIG. 33(b)) where it is separated from the device abutting portions 10g and 10h. For example, the moving mechanism 33 may include a second operation shaft portion 33a that extends in a direction intersecting the first operation shaft portion 32.

[0155] Thereby, the first operation portion 8 moves between the abutting position and the retracted position by being rotationally operated in the second operation direction D7 about the second operation shaft portion 33a. Therefore, while the first operation portion 8 is rotationally operated in the first operation direction D4 about the first operation shaft portion 32, the first operation portion 8 is rotationally operated in the second operation direction D7 about the second operation shaft portion 33a.

[0156] Note that the first operation portion 8 may include, for example, an abutting portion 8b that protrudes in the left-right direction D2 (specifically, the right direction) from the handle 8a so as to abut against the device abutting portions 10g and 10h. Further, the sealing device 1 may include, for example, a first operation elastic portion 34 that applies an elastic restoring force toward the operation start position P0 (specifically, in the direction opposite to the first operation direction D4) to the first operation portion 8, and a second operation elastic portion 35 that applies an elastic restoring force toward the abutting position (specifically, in the direction opposite to the second operation direction D7) to the first operation portion 8.

[0157] Next, the operation method of the first operation unit 8 according to FIGS. 31 to 33 will be described with reference to FIGS. 34 and 35. Also, the operation of the input unit 4 accompanying the operation of the first operation unit 8 will be described with reference to FIGS. 10 to 12.

[0158] As shown in FIG. 34(a), when there is no force applied to the first operation unit 8, the first operation unit 8 is positioned at the operation start position P0 by the first operation elastic unit 34 (see FIGS. 31 and 32) and the seal elastic unit 52 (see FIG. 6 etc.). At this time, the second device locking portion 10h is locking the locked portion 8b of the first operation unit 8 in the first operation direction D4. When the first operation unit 8 is positioned at the operation start position P0, the input unit 4 is positioned at the initial position (see FIG. 10).

[0159] Then, as shown in FIG. 34(b), when the first operation unit 8 is rotated in the first operation direction D4 by the first angle θ1 up to the first rotation position P1, the input unit 4 moves to the first input position (see FIG. 11). Thereby, the content Y1 is input into the inside of the packaging material X1. At this time, since the first device locking portion 10g locks the locked portion 8b of the first operation unit 8 in the first operation direction D4, the input unit 4 is held at the first input position.

[0160] Then, as shown in FIG. 35(a), the first operation unit 8 is operated in the second operation direction D7 by the movement mechanism 33 (see FIGS. 31 and 32). Thereby, the first operation unit 8 is moved from the locking position to the retracted position, and thus separates from the first device locking portion 10g.

[0161] After that, as shown in FIG. 35(b), when the first operation unit 8 is rotated in the first operation direction D4 by the second angle θ2 (θ2 > θ1) up to the second rotation position P2, the input unit 4 is positioned at the second input position (not shown). Then, the input unit 4 returns to the initial position by the clutch unit 42 (see FIG. 12).

[0162] As a result, sufficient time can be ensured to position the input unit 4 at the input position (specifically, the position between the first input position and the second input position). Therefore, the content Y1 can be surely input into the inside of the packaging material X1.

[0163] Thus, in the sealing device 1, as shown in FIGS. 31 to 35, the operation unit (the first operation unit in FIGS. 31 to 35) 8 is rotated from the operation start position P0 in the operation direction (the first operation direction in FIGS. 31 to 35) D4, and moves in order to the first rotation position P1 and the second rotation position P2, the input unit 4 is located at the initial position when the operation unit 8 is located at the operation start position P0, is located at the first input position among the input positions when the operation unit 8 is located at the first rotation position P1, is located at the second input position among the input positions when the operation unit 8 is located at the second rotation position P2, returns to the initial position by the clutch unit 42 when located at the second input position, the sealing device 1 has a device stop portion (the first device stop portion in FIGS. 31 to 35) 10g that stops the operation unit 8 at the first rotation position P1, and a movement mechanism 33 that enables the operation unit 8 to move between a stop position where it is stopped against the device stop portion 10g and a retracted position where it is separated from the device stop portion 10g. Such a configuration is preferable.

[0164] According to such a configuration, when the operation unit (the first operation unit in FIGS. 31 to 35) 8 is located at the operation start position P0, the input unit 4 is located at the initial position. When the operation unit 8 is rotated and positioned at the first rotation position P1, the input unit 4 is located at the first input position. At this time, since the device stop portion (the first device stop portion in FIGS. 31 to 35) 10g stops the operation unit 8, the input unit 4 is held at the first input position.

[0165] Then, the operation unit 8 is moved from the locking position to the retracted position by the moving mechanism 33, thereby separating from the device locking portion 10g. As a result, when the operation unit 8 is rotationally operated to be positioned at the second rotation position P2, the insertion unit 4 is positioned at the second insertion position. Therefore, it is possible to sufficiently secure the time for positioning the insertion unit 4 at the insertion position (specifically, the position between the first insertion position and the second insertion position).

[0166] (L-1―1) In the sealing device 1 according to FIGS. 31 to 35, the moving mechanism 33 operates the first operation unit 8 about the second operation shaft portion 33a, that is, the second operation direction D7 is the rotational direction. However, the sealing device 1 is not limited to such a configuration. For example, the moving mechanism 33 may be configured to slide the first operation unit 8 along the first operation shaft portion 32, that is, the second operation direction D7 may be the left-right direction D2 (linear direction).

[0167] (M) For example, in the methods and apparatuses shown in the claims, the specification, and the drawings, the execution order of each step such as operations, procedures, steps, and stages can be realized in any order as long as the result of the previous step is not used in the subsequent step. For example, even if it is described for convenience using "first", "next", etc., it does not mean that it is essential to execute in this order.

Explanation of Reference Numerals

[0168] 1...Sealing device, 2...Device body, 3...Rotating tray, 3a...Tray body part, 3b...Tray rotating part, 3c...Opening, 3d...Receiving part, 4...Feeding part, 5...First clamping part, 5a...First end part, 5b...Second end part, 5c...Clamping receiving part, 5d...Clamping stopper part, 6...Second clamping part, 6a...Heating part, 7...Cutting part, 7a...First end part, 7b...Second end part, 7c...Cutting receiving part, 7d...Cutting body part, 7e...Fixing part, 8...First operation part, 8a...Handle, 8b...Part to be stopped, 9...Transmission part, 10...Body part, 10a...Feeding port part, 10b...Upper plate, 10c...Lower plate, 10d...Middle plate, 10e...Side plate, 10f...Connection plate, 10g...First device stopper part, 10h...Second device stopper part, 11...Blowing part, 12...Second operation part, 13...Clamping guide part, 14...Position detection part, 15...Control part, 21...Tray, 21a...Part to be guided, 21b...Shaft part, 22...Hopper, 22a...Part to be guided, 23...Link, 24...Bracket, 31...Operation rotating part, 32...(First) operation shaft part, 33...Moving mechanism, 33a...Second operation shaft part, 34...First operation elastic part, 35...Second operation elastic part, 40...Feeding operation part, 41...Feeding rotating part, 41a...Recess, 42...Clutch part, 42a...Clutch elastic part, 43...Feeding elastic part, 43a...Tray elastic part, 43b...Hopper elastic part, 44...Feeding shaft part, 45...Rotating protrusion, 45a...Tray guide part, 45b...Hopper guide part, 50...Sealing operation part, 51...Holding part, 52...Sealing elastic part, 53...Cutting rotating part, 53a...Rotating part body, 53b...First contact part, 53c...Second contact part, 54...Cutting string body, 55...Clamping rotating part, 56, 57...Clamping string body, 58...Holding elastic part, 59...String body guide part, 61, 62, 63, 64, 65...Screw material, D1...Front-rear direction (first lateral direction), D2...Left-right direction (second lateral direction), D3...Up-down direction, D4...(First) operation direction, D5...Operation direction, D6...Reverse operation direction, D7...Second operation direction, X1...Packaging material, X1a...Cylindrical part, X1b...Connecting part, Y1...Contents

Claims

1. a first clamping portion and a second clamping portion that clamp the packaging material; A cutting unit that cuts the packaging material; An operation unit that is operated in an operation direction; a transmission unit that transmits a force to the operating unit to the first clamping unit and the cutting unit such that the first clamping unit and the cutting unit move from an initial position in an operating direction by operating the operating unit in the operating direction, At least one of the first clamping section and the second clamping section includes a heating section that heat-seals the packaging material, the transmission unit includes a holding unit that holds the first clamping unit on the cutting unit so that the first clamping unit moves in the operating direction together with the cutting unit, A sealing device, wherein the holding portion is provided with an elastically deformable holding elastic portion so that the cutting portion moves in the operating direction relative to the first clamping portion after the first clamping portion moves in the operating direction to a clamping position where it clamps the packaging material with the second clamping portion.

2. The sealing device according to claim 1 , wherein the retaining elastic portion is disposed between the cutting portion and the first clamping portion in the operating direction and elastically deforms in the operating direction.

3. the first clamping portion includes a clamping receiving portion that is disposed on the side of the holding elastic portion in the operating direction and receives an elastic restoring force in the operating direction from the holding elastic portion, the cutting portion includes a cutting receiving portion disposed on the side of the holding elastic portion in a reaction direction opposite to the operation direction and receiving an elastic restoring force in the reaction direction from the holding elastic portion, The first clamping portion includes a clamping stop portion that abuts against the cutting portion from the counter-movement direction so as to move together with the cutting portion until the first clamping portion moves to the clamping position, The sealing device according to claim 2 , wherein the retaining elastic portion is elastically deformed in the operating direction in a state in which the pinching abutment portion abuts and stops the cutting portion.

4. The operation unit is rotated so that the operation direction is a rotation direction, The transmission unit is a cutting rotation unit that rotates in the operation direction by transmitting a force in the operation direction from the operation unit; 4. The sealing device according to claim 2 or 3, further comprising: a cutting string that connects the cutting rotation portion and the cutting portion, and is wound around the cutting rotation portion so that the cutting portion moves in the operating direction when the cutting rotation portion rotates in the operating direction.

5. The operation unit is rotated so that the operation direction is a rotation direction, The holding portion is a cutting rotation unit that rotates in the operation direction by transmitting a force in the operation direction from the operation unit; a clamping rotation part that is connected to the cutting rotation part by the retaining elastic part, rotates in the operating direction by receiving a force in the operating direction from the cutting rotation part via the retaining elastic part, and transmits a force to the first clamping part so as to move the first clamping part in the operating direction.

6. The holding portion is A cutting string that connects the cutting rotation unit and the cutting unit and is wound around the cutting rotation unit so that the cutting unit moves in the operating direction when the cutting rotation unit rotates in the operating direction; The sealing device according to claim 5, further comprising: a clamping string body that connects the clamping rotation portion and the first clamping portion and is wound around the clamping rotation portion so that the first clamping portion moves in the operating direction when the clamping rotation portion rotates in the operating direction.

7. The operation unit is rotated so that the operation direction is a rotation direction, the transmission unit includes an operation rotation unit that rotates in the operation direction by receiving a force in the operation direction from the operation unit, The sealing device comprises: A feed rotation unit rotatable in the operation direction; a clutch unit that transmits a force of the operation rotation unit in the operation direction to the closing rotation unit; an inserting unit that moves from an initial position to an inserting position where the content is inserted into the packaging material by receiving a force in the operation direction from the inserting rotation unit; an insertion elastic portion that applies an elastic restoring force to the insertion portion toward the initial position, and the elastic restoring force increases as the insertion portion moves from the initial position toward the insertion position; A sealing device as described in any one of claims 1 to 3 and 5 to 6, wherein the clutch portion cuts off transmission to the insert rotating portion when the inserting portion is positioned at the inserting position by the elastic restoring force of the inserting elastic portion exceeding a set value, so that the inserting portion returns from the inserting position to the initial position due to the elastic restoring force of the inserting elastic portion.

8. the operation unit is rotated from an operation start position in the operation direction to move to a first rotation position and then to a second rotation position, The input unit is When the operation unit is located at the operation start position, the operation unit is located at the initial position; When the operation unit is located at the first rotation position, the operation unit is located at a first closing position among the closing positions, When the operation unit is located at the second rotation position, the operation unit is located at a second closing position among the closing positions, When the clutch lever is located at the second closing position, the clutch lever is returned to the initial position by the clutch lever. The sealing device comprises: a device abutment portion that abuts and stops the operation portion at the first rotation position; The sealing device according to claim 7 , further comprising: a movement mechanism capable of moving the operation portion between an abutment position where the operation portion abuts against the device abutment portion and a retracted position where the operation portion is separated from the device abutment portion.

9. A sealing device according to any one of claims 1 to 3 and 5 to 6, comprising a seal elastic portion that applies an elastic restoring force to the first clamping portion and the cutting portion toward the initial position so that the first clamping portion and the cutting portion return to the initial position.

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