JP3166827U - Vacuum packaging machine - Google Patents

Abstract

An object of the present invention is to provide a vacuum packaging device which can realize compactness and energy saving and can reduce manufacturing cost. A lock means for holding a pressing state of a pressing handle with respect to a main body includes left and right locking rods protruding downward from left and right side positions of a lower surface of the pressing handle, and a main body corresponding to each locking rod. Each time the lock rod 14 is pushed in, the operation is sequentially converted into a locked state in which the lock rod 14 is locked and a release state in which the lock rod 14 is unlocked. It is constituted by the left and right locking rod receiving members 15 which are generated. Thus, the lock rod receiving member 15 can be disposed in a small space, and the lock rod receiving member 15 can be operated without electric power, as compared with the case where a conventional electromagnetic magnet is disposed. Therefore, compactness and energy saving of the vacuum packaging device are realized, and the manufacturing cost is reduced. [Selection diagram] FIG.

Description

  The present invention relates to a vacuum packaging device for degassing air in a plastic film vacuum packaging bag (hereinafter referred to as "vacuum bag") and then welding and sealing the opening of the vacuum bag. About.

  In order to store a packaged item such as food in a vacuum bag and store it in a vacuum state, after the air in the vacuum bag containing the packaged item is deaerated, the opening of the vacuum bag is welded A tabletop vacuum packaging device for sealing is known (see, for example, Patent Documents 1 and 2).

  In this type of vacuum packaging device, a main body provided with a pressed portion and a heater wire along the lateral width direction on the upper surface of the front edge portion, and pivotally connected to the main body so as to be pivotable in the vertical direction. A cushioning member elastically contactable with the pressing part and the heater wire is communicated with a pressing handle provided on the lower surface and a vacuum pump disposed inside the main body, and protrudes forward beyond the pressed part. Some of them are provided with an intake nozzle that can be moved forward and backward, and a lock means that holds the pressing state of the pressing handle with respect to the main body.

  Such a vacuum packaging device is placed in a vacuum bag containing food to be packaged, with the intake nozzle inserted through the opening, and the opening is placed on the upper surface of the front edge of the main body, and then the pressing handle is moved downward. Rotate and press against the upper surface of the front edge of the main body via the vacuum bag, and lock the vacuum bag with the opening of the vacuum bag sandwiched between the pressed part on the upper surface of the front edge and the cushion member on the lower surface of the pressing handle. When the pressing state is held by the means, the vacuum pump is driven for a predetermined time by the sequence control of the control device built in the main body, the air in the vacuum bag is sucked from the intake nozzle, and then the intake nozzle is driven backward. After being pulled out from the opening of the vacuum bag, the heater wire is energized for a predetermined time to perform a series of operations for welding and sealing the opening of the vacuum bag.

Japanese Utility Model Publication No. 2-42565 JP 2003-40214 A

  As described above, in the deaeration process in the vacuum bag by the intake nozzle and the welding process of the opening part by the heater wire, the opening part of the vacuum bag is covered on the upper surface of the main body so that the outside air does not flow back into the vacuum bag. In order to maintain the state of being held between the pressing portion and the cushion member on the lower surface of the pressing handle, the pressing means holds the pressing state against the main body by the locking means, but holds the holding state of the opening of the vacuum bag. Since a large holding force is required for the conventional lock means, in many cases, an attraction type lock means using an electromagnetic magnet has been used as the lock means. This is one in which electromagnetic magnets are disposed on both the left and right sides of the upper surface of the main body, and a ferromagnetic material such as iron is disposed on the lower surface of the pressing handle corresponding to each electromagnetic magnet.

  By the way, in order to obtain a large attractive force by the electromagnetic magnet, it is necessary to use a relatively large electromagnetic magnet, and the power consumption is also large, which has been an obstacle to the compactness and energy saving of the vacuum packaging device. In addition, since two electromagnetic magnets must be used, the manufacturing cost is increased accordingly.

  The present invention has been made to improve the conventional situation, and an object of the present invention is to provide a vacuum packaging device that can achieve compactness and energy saving and can reduce the manufacturing cost.

  The present invention has a main body provided with a pressed portion and a heater wire along the width direction on the upper surface of the front edge portion, and is pivotally connected to the main body so as to be rotatable in the vertical direction. Each of the intake nozzles communicates with a pressing handle having a cushion member that can be elastically contacted with each other on the lower surface and a vacuum pump disposed inside the main body, and protrudes forward beyond the pressed portion. And a vacuum packaging device comprising a lock means for holding a pressed state of the pressing handle with respect to the main body, wherein the locking means includes left and right lock rods projecting downward from left and right side positions of the lower surface of the pressing handle, respectively. The lock rod is disposed at the upper surface position corresponding to each lock rod, and each time the lock rod is pushed, the lock rod is locked and the lock rod is unlocked. Creates an action that is converted in order A vacuum packaging device, characterized in that is made of a that the left and right lock rod receptacle.

  In each of the above vacuum packaging devices, each lock bar has an inclined surface that is inclined at the tip thereof from the lower part to the upper outer side and an engagement surface that is coupled inward from the upper end of the inclined surface. On the other hand, each lock hook receiving device has a wide insertion opening at the top and a sliding hole in the vertical direction with the lower portion narrowed via a pressing inclined surface that inclines downward from the insertion opening inward. The outer case and a sliding hole of the outer case are accommodated so as to be movable in the vertical direction. A slider provided with an elastic hook-shaped piece to be engaged, and a biasing member that is interposed between a lower portion of the slider and an inner bottom portion of the outer case, and constantly biases the slider upward. A cam groove having a predetermined shape formed on a side surface of the slider and having a locking recess recessed downward at an upper position, and the inside of the cam groove It consists of an engagement pin that moves relative to the downward movement, and each time the slider moves downward, the engagement pin is locked in the locking recess of the cam groove to keep the slider from moving upward. Proposed is a configuration including a cam mechanism that alternately generates a locked state in which the engaging pin is disengaged from the locking recess and an unlocked state in which the slider is allowed to move upward.

  In addition, each lock rod holder is provided so as to be slidable in the front-rear direction, and is normally biased so as to be biased in one direction, while a micro switch is provided on the opposite side to the bias direction of each lock rod holder. When the lock rod is pushed into each lock rod receiving device, the lock rod is pressed and the lock rod receiving device moves in the direction opposite to the biasing direction to turn on each micro switch. A provided arrangement is proposed.

  In the present invention, as described above, the lock means for holding the pressing state of the pressing handle includes the left and right lock rods protruding downward from the left and right side positions of the lower surface of the pressing handle, and the main body corresponding to each lock rod. Each time the lock rod is pushed, each time the lock rod is pushed in, the left and right that cause an operation that is sequentially converted into a locked state that locks the lock rod and a released state that unlocks the lock rod. The lock rod receiver can be reduced in size, and the lock rod receiver can be made in a small space compared to the conventional electromagnetic magnet. Can be arranged. In addition, the lock rod receiver can be operated without power. Thereby, the compactness and energy saving of the vacuum packaging device can be realized. Moreover, since the lock rod and the lock rod receiving device can be manufactured at low cost, the manufacturing cost of the vacuum packaging device can be reduced as compared with the case where an electromagnetic magnet is used.

  Each of the lock rods includes, at the tip thereof, a flange portion including an inclined surface inclined from the lower portion to the upper outer side and an engagement surface coupled inward from the upper end of the inclined surface, An outer case having a wide sliding opening at the top and a sliding hole in the vertical direction in which the lower part has a narrow width via a pressing inclined surface inclined downward inward from the insertion opening; Elastic that is accommodated in the sliding hole of the outer case so as to move up and down, and is pressed by one inner surface of the lower part of the sliding hole that is continuous with the inclined pressure surface when being moved downward, and is engaged with the collar of the lock rod. A slider provided with a hook-shaped piece, a biasing member interposed between the lower part of the slider and the inner bottom of the outer case and constantly biasing the slider upward, A cam groove having a predetermined shape formed on a side surface and provided with a locking recess recessed downward at an upper position, and the vertical movement of the slider in the cam groove A locking state in which the engaging pin is engaged with the engaging recess of the cam groove to hold the slider in an upwardly movable state each time the slider is moved downward. In the configuration including a cam mechanism that alternately generates an unlocking state in which the engaging pin is removed from the locking recess and the slider can be moved upward, the lock rod is provided in each lock rod receiving device. Each time it is pushed downward, the slider moves downward, and the elastic hook-like piece of the slider is engaged with the hook of the lock hook to lock the lock hook, and the elastic hook It is possible to reliably cause an operation in which the pieces are sequentially converted into a release state in which the piece is released from the hook portion of the lock rod and unlocks the lock rod.

  In addition, each lock rod holder is provided so as to be slidable in the front-rear direction, and is normally biased so as to be biased in one direction, while a micro switch is provided on the opposite side to the bias direction of each lock rod holder. When the lock rod is pushed into each lock rod receiving device, the lock rod is pressed and the lock rod receiving device moves in the direction opposite to the biasing direction to turn on each micro switch. In the configuration provided, each micro switch can be automatically turned on and off by sliding the lock rod holder in the front-rear direction with a simple configuration, and a separate complicated micro switch operation mechanism This also makes it possible to make the vacuum packaging device compact.

It is an external appearance perspective view of the vacuum packaging device 1 concerning this invention of the state which rotated the press handle 3 upwards. It is an external appearance perspective view of the vacuum packaging device 1 concerning this invention of the state which rotated the press handle 3 below. (A) is a sectional side view of the lock rod receiver 15 showing the unlocked state of the lock rod 14, and (B) is a side sectional view of the lock rod receiver 15 showing the locked state of the lock rod 14. FIG. 4 is an exploded side sectional view of the lock rod receiver 15. FIG. 6 is a longitudinal rear view of the lock rod receiver 15. (A) is an operation explanatory view of the cam groove 28 formed on one side surface of the slider 22, and (B) is an operation explanatory view of the cam groove 28 ′ formed on the other side surface of the slider 22. (A) is a bottom view of the lock hook receiving tool 15 and the microswitch 41, and (B) is a perspective view of the same.

Embodiments of the present invention will be described based on the following examples.
As shown in FIG. 1, the vacuum packaging device 1 according to the present invention includes a main body 2 formed in a rectangular housing shape and a pressing handle 3 formed in a substantially gate shape. The base of the pressing handle 3 is pivotally connected to the rear side surface of the main body 2 by a support shaft (not shown), and is thereby rotatable in the vertical direction. The pressing handle 3 is urged so as to always rotate upward by a coil spring (not shown) wound around the support shaft. On the other hand, the upper surface of the main body 2 is formed so as to substantially match the shape of the pressing handle 3 by recessing the front edge portion and the left and right side edge portions thereof, thereby rotating the pressing handle 3 downward. As a result, as shown in FIG. 2, the pressing handle 3 fits in the main body 2 in a uniform manner.

  On the upper surface of the front edge portion of the main body 2, a pressed portion 6 having two protrusions 4, 4 along the lateral width direction and an elastic body 5 is provided, and a heater is provided on the rear side of the pressed portion 6. Line 7 is juxtaposed. A thin film member 8 having a smooth surface such as a fluororesin coating formed on the upper surface thereof is deposited on the heater wire 7, and the thin film member 8 is melted when the opening is welded due to the smooth action of the thin film member 8. To make it easier to leave.

  At the center position of the front wall portion 9 of the main body 2, a nozzle insertion hole 10 is opened in which an intake nozzle 11 that can be advanced and retracted appears. The intake nozzle 11 is driven back and forth in the front-rear direction by a drive mechanism (not shown), and is projected forward from the nozzle insertion hole 10 beyond the pressed portion 6 when advanced, while being drawn into the main body 2 when retracted. It has become. The rear end portion of the intake nozzle 11 is in communication with a vacuum pump (not shown) disposed inside the main body 2, and air is sucked from the front end of the intake nozzle 11 by driving the vacuum pump. ing.

  Cushion members 12a and 12b which can be elastically contacted with the pressed portion 6 and the heater wire 7 are respectively provided on the lower surface of the front portion of the pressure handle 3 which is the lower surface when the pressure handle 3 is rotated downward. In addition, a pair of left and right lock rods 14 and 14 projecting downward are disposed at the left and right side positions of the lower surface of the front portion of the pressing handle 3.

  On the other hand, a pair of left and right lock rod receivers 15 and 15 are disposed on the left and right sides of the upper surface of the front edge of the main body 2 corresponding to the lock rods 14 and 14, respectively. The lock rod receivers 15 and 15 and the lock rods 14 and 14 are the main parts of the present invention, and will be described in detail later.

  A control unit 16 having a plurality of buttons and a status display lamp for setting the operation mode of the vacuum packaging device 1 is provided on the rear surface of the upper surface of the main body 2, and a power switch 17 is arranged on the side surface of the main body 2. It is installed. Further, the main body 2 incorporates a control device (not shown) having a microcomputer for controlling the operation of the vacuum packaging device 1.

Next, the main part of the present invention will be described.
The lock rods 14 and 14 and the lock rod receivers 15 and 15 constitute lock means for holding the pressing state of the pressing handle 3 against the main body 2. The lock rod receivers 15 and 15 include the lock rods 14 and 14. Each time it is pushed in, an operation that sequentially converts into a locked state in which the lock rods 14 and 14 are locked and a released state in which the lock rods 14 and 14 are unlocked occurs.

  As shown in FIG. 3 (A), each lock rod 14 has an inclined surface 19a inclined from the lower part to the upper outer side, and an engagement surface coupled inward from the upper end of the inclined surface 19a. A flange 18 formed of 19b is provided, and a guide inclined surface 20 is formed on the back side of the flange 18 so as to be inclined outward from the lower portion to the upper portion.

  On the other hand, as shown in FIG. 3 and FIG. 4, each lock rod receiver 15 includes a rectangular outer case 21 and a slider 22 accommodated in the outer case 21. The outer case 21 is provided with a wide insertion opening 24a in the upper part, and the lower part has a vertical sliding hole 23 in which the lower part has a narrow width via a pressing inclined surface 24b inclined downward inward from the insertion opening 24a. Is formed. The slider 22 is accommodated in the sliding hole 23 so as to be movable up and down, and the slider 22 is slid continuously with the pressing inclined surface 24b when moved downward (see FIG. 3B). An elastic hook-like piece 25 that is pressed against one inner side surface 24c of the lower part of the moving hole 23 and is engaged with the hook part 18 of the lock hook 14 is provided. Further, an urging member 27 made of a compression coil spring is interposed between the lower portion of the slider 22 and the inner bottom portion 26a of the outer case 21, and the urging member 27 always keeps the slider 22 upward. It is energized. Further, a narrow guide long hole 21b is opened along the vertical direction in the rear wall portion 21a of the outer case 21 facing the one inner side surface 24c of the sliding hole 23 at the center in the horizontal direction. A stopper piece 22a protruding from the rear part of the slider 22 is inserted into the guide slot 21b. When the slider 22 is moved upward by the urging force of the urging member 27 (see FIG. 3A), the stopper piece 22a comes into contact with the upper end of the guide long hole 21b. 22 upward movement positions are defined.

  In addition, each lock rod receiver 15 has a locked state in which the slider 22 is held so that it cannot be moved up every time the slider 22 moves down, and a non-locking state in which the slider 22 can be moved up. A cam mechanism for alternately generating states is provided. As shown in FIG. 6 (A), the cam mechanism is formed in a predetermined shape on one side surface of the slider 22 and is provided with a cam groove 28 provided with a locking recess 29 that is recessed downward at an upper position thereof. The engaging pin 30 moves relatively in the cam groove 28 as the slider 22 moves up and down. Here, as shown in FIG. 5, the engagement pin 30 is formed in a substantially U shape by a spring steel wire, and its base portion is fitted to the bottom plate portion 26 of the outer case 21 so as to be rotatable in the front-rear direction. The upper end of the engagement pin 30 is provided with a pair of engagement portions 31a and 31b that are bent inward toward each other. Further, as shown in FIG. 6 (B), a cam groove 28 ′ having a slightly different shape from the cam groove 28 is formed on the other side surface of the slider 22. As a result, the engaging portion 31b of the engaging pin 30 moves relatively in the cam groove 28 ', so that the engaging portion 31a of the engaging pin 30 moves smoothly in the other cam groove 28. ing.

  That is, as shown in FIG. 6A, the cam groove 28 includes an outward path 32a in which the engaging portion 31a of the engaging pin 30 relatively rises as the slider 22 moves downward, and the slider 22. And the return path 32b in which the engagement portion 31a of the engagement pin 30 descends relatively with the upward movement of the engagement pin 30, but when the engagement portion 31a of the engagement pin 30 rises from the position P1, The wall surface 35a of the forward path 34a of the cam groove 28 ′ (see FIG. 6B) is higher than the junction part 33 of the cam groove 28 so that the engaging part 31a does not enter the return path 32b at the junction part 33 of the return path 32b. Thus, the engaging portion 31a is guided to the forward path 32a side at the position P2. The engaging portion 31a of the engaging pin 30 that has reached the position P4 via the position P3 is relatively lowered with the upward movement of the slider 22 and is locked to the locking recess 29 at the position P5. . Thereby, the locked state which hold | maintains the slider 22 so that it cannot move up is obtained. When the engaging portion 31a of the engaging pin 30 rises from the position P5 with the downward movement of the slider 22, the ascending gradient provided on the upper portion of the cam groove 28 '(see FIG. 6B) is increased. Due to the guiding action of the inclined surface 35b, the engaging portion 31b of the engaging pin 30 moves to the upper end of the return path 34b of the cam groove 28 ', so that the engaging portion 31a of the engaging pin 30 is positioned in conjunction with the movement. Move to P6. As the slider 22 moves upward, the engaging portion 31a of the engaging pin 30 moves down the return path 32b and returns to the position P1. The downward movement of the slider 22 described above occurs when the slider 22 is pushed downward by the flange 18 of the lock rod 14, and the upward movement of the slider 22 is caused by the biasing member 27 (FIG. 3). (See (A)).

  In this way, each time the slider 22 is moved downward, the cam mechanism is locked so that the engaging portion 31a of the engaging pin 30 is locked to the locking recess 29 of the cam groove 28, so that the slider 22 cannot move up. And the unlocked state in which the engaging portion 31a of the engaging pin 30 is disengaged from the engaging recess 29 and the slider 22 can be moved upward alternately.

  Further, as shown in FIG. 3, the outer casing 21 is inserted into each of the lock rod receivers 15 in a rectangular long hole 37 that is opened in the top wall portion 36 of the front edge portion of the main body 2 in the front-rear direction. Between the locking step portions 38 and 38 (see FIG. 5) formed on the left and right side walls of the outer case 21 and the retaining protrusions 39 and 39 protruding outward from the left and right side walls of the outer case 21. By inserting the left and right hole edges of the long hole 37, each lock rod receiver 15 is provided to be slidable in the front-rear direction. As shown in FIG. 7, a curved portion of a biasing member 40 made of a spring steel wire bent in a substantially U shape is in contact with the rear surface of each outer case 21, and by the biasing member 40, Each lock rod receiver 15 is always urged so as to be biased to the front end position of the long hole 37. Microswitches 41 having two contact arms 42a and 42b are respectively arranged at the rear positions of the respective outer cases 21 on the opposite side to the biasing direction of the respective lock rod receivers 15. The contact arms 42a and 42b are opposed to each other in the front-rear direction with a predetermined contact interval, and the lock rod receiver 15 is rearward against the urging force of the urging member 40 as shown in FIG. When moving in the direction, the contact arm 42a comes into contact with the contact arm 42b by being pushed by the rear wall surface of the outer case 21, and the micro switch 41 is turned on.

  Further, as described above, each lock rod receiver 15 that is normally biased to the front end position of the long hole 37 by the urging member 40 is pushed down from above by the lock rod 14 as shown in FIG. In this case, the guide inclined surface 20 of the lock rod 14 is disposed in such a positional relationship that the upper end corner portion 43 of the slider 22 that faces the elastic rod-shaped piece 25 contacts. Thereby, when each lock rod 14 is pushed into each lock rod receiver 15, it is pressed against the guide inclined surface 20 of the lock rod 14, so that each lock rod receiver 15 moves backward.

  In such a configuration, as shown in FIG. 1, the pressing handle 3 is rotated upward to turn on the power switch 17 on the side surface of the main body 2, and then a vacuum bag containing a packaged item such as food ( (Not shown) With the intake nozzle 11 inserted in the vacuum bag, the opening of the vacuum bag is placed on the upper surface of the front edge of the main body 2, and then the pressing handle 3 is rotated downward to move the main body through the vacuum bag. 2, the left and right lock rods 14, 14 disposed on the pressing handle 3 are pushed into the lock rod receivers 15, 15 disposed on the main body 2. Along with this, the slider 22 (see FIG. 3) pushed downward by the distal ends of the lock rods 14 and 14 moves downward against the urging force of the urging member 27, thereby causing each slide. The elastic rod-like pieces 25 of the moving element 22 are respectively pressed against the inner surface 24c of the lower portion of the sliding hole 23 and engaged with the flange portion 18 of the lock rod 14 (see FIG. 3B). Further, by the downward movement of each slider 22, the engagement pin 30 is locked in the locking recess 29 of the cam groove 28 constituting the cam mechanism, and each slider 22 is held so as not to move up. As a result, in the state where the opening portion of the vacuum bag is sandwiched between the pressed portion 6 on the upper surface of the front edge portion of the main body 2 and the cushion members 12a and 12b of the pressing handle 3, the lock rods 14 and 14 Locked by the tools 15 and 15, the pressing state of the pressing handle 3 against the main body 2 is maintained.

  As described above, when the lock rods 14 and 14 are pushed into the lock rod receivers 15 and 15, the lock rod receivers 15 and 15 are pushed backward by the lock rods 14 and 14, respectively. By moving, the micro switches 41 and 41 disposed at the rear positions of the lock rod receivers 15 and 15 are turned ON, respectively, and the output signals are input to a control device (not shown). Then, with this signal input as a trigger, sequence control by the control device is started. By this sequence control, a vacuum pump (not shown) is driven for a predetermined time, the air in the vacuum bag is sucked from the suction nozzle 11, and then the suction nozzle 11 is driven backward to be pulled out from the opening of the vacuum bag, and then the heater wire By energizing 7 for a predetermined time, the opening of the vacuum bag is welded and sealed. Thereafter, the process proceeds to cooling for a predetermined time, and when the cooling is finished, an alarm sound is generated from a buzzer (not shown) to notify that the sealing work is finished.

  Then, after the sealing operation is completed as described above, when the pressing handle 3 is pressed again downward, the sliders 22 (see FIG. 3) pressed by the distal ends of the lock rods 14 and 14 move downward. The engaging pin 30 is disengaged from the locking recess 29 of the cam groove 28 constituting the cam mechanism so that each slider 22 can be moved upward, and each slider 22 is moved upward by the biasing force of the biasing member 27. Thus, the engagement between the flange portion 18 of the lock rod 14 and the elastic rod-shaped piece 25 is released (see FIG. 3A). Then, the pressing handle 3 is rotated upward by a biasing force of a coil spring (not shown), and the lock rods 14 and 14 are detached from the lock rod receivers 15 and 15 with the rotation. In addition, the sealed vacuum bag can be removed from the vacuum packaging device 1 in this state.

  Here, when the lock rods 14, 14 are detached from the lock rod receivers 15, 15 as described above, the lock rod receivers 15, 15 that have been pressed against the lock rods 14, 14 are urged members 40. , 40 returns to the forward biased position, and the micro switches 41, 41 are turned off. When both of the signal inputs from the two micro switches 41 and 41 are lost, the intake nozzle 11 is driven to advance by the control of the control device, and the intake nozzle 11 exceeds the pressed portion 6 as shown in FIG. Projecting forward to enter a standby state for the next sealing operation.

  In this way, by controlling the push handle 3 to rotate upward so that the intake nozzle 11 protrudes forward after both signal inputs from the two microswitches 41 and 41 have disappeared, Problems caused by driving the intake nozzle 11 forward while the engagement of only 14 is released are prevented. That is, the intake nozzle 11 does not hit the cushion members 12a and 12b of the pressing handle 3 from the rear to damage the cushion members 12a and 12b.

  In the above-described embodiment, the lock rod receivers 15, 15 that are slidable in the front-rear direction are urged forward by the urging force of the urging members 40, 40, and each lock The microswitches 41 and 41 are arranged at the rear positions of the hook receivers 15 and 15, but instead, the lock hook receivers 15 and 15 are moved backward by the biasing force of the biasing members 40 and 40. The micro switches 41 and 41 are disposed at the front positions of the lock rod receivers 15 and 15 so as to be biased, and the lock rod receivers 15 and 15 are moved forward by the lock rods 14 and 14, respectively. It is also possible to provide a switch to be turned on.

  Moreover, although the said embodiment demonstrated the operation | movement aspect which seals an opening part after evacuating the inside of a vacuum bag, only the operation | movement which seals an opening part by button operation of the control part 16 of the main body 2 is performed. As described above, the operation mode of the vacuum packaging device 1 can be switched.

  Thus, in the present invention, the lock means for holding the pressing state of the pressing handle 3 includes the left and right lock rods 14 and 14 projecting downward from the left and right side positions of the lower surface of the pressing handle 3, and the lock rods. 14 and 14 are respectively disposed at the upper surface positions of the main body 2, and each time the lock rods 14 and 14 are pushed, the locked state in which the lock rods 14 and 14 are locked, and the lock rods 14 and 14. Since the left and right lock bar holders 15 and 15 that cause an operation that is sequentially converted into a release state in which the lock is released, the lock bar receivers 15 and 15 disposed in the main body 2 are reduced in size. Compared with the case where a conventional electromagnetic magnet is provided, the lock rod receivers 15 and 15 can be provided in a small space. In addition, the lock rod receivers 15 can be operated without power. Thereby, the compactness and energy saving of the vacuum packaging device 1 can be realized. Moreover, since the lock hooks 14 and 14 and the lock hook receivers 15 and 15 can be manufactured at low cost, the manufacturing cost of the vacuum packaging device 1 can be reduced as compared with the case where an electromagnetic magnet is used.

  In addition, the lock rod receivers 15 and 15 are provided so as to be slidable in the front-rear direction and are normally biased so as to be biased in one direction, while the lock rod receivers 15 and 15 are on the opposite side to the bias direction. The micro switches 41 and 41 are provided, respectively. When the lock rods 14 and 14 are pushed into the lock rod receivers 15 and 15, the lock rods 14 and 14 are pressed, and the lock rod receivers 15 and 15 are displaced. The microswitches 41, 41 are provided so that the microswitches 41, 41 are turned on, and the microswitches 41, 41 are slid in the front-rear direction of the lock rod receivers 15, 15 with a simple configuration. Can be automatically turned ON / OFF, and it is not necessary to provide a separate operation mechanism for the microswitches 41, 41. This also makes the vacuum packaging device 1 compact. That.

DESCRIPTION OF SYMBOLS 1 Vacuum packaging device 2 Main body 3 Press handle 6 Pressed part 7 Heater wire 11 Intake nozzle 12a, 12b Cushion member 14 Lock rod (lock means)
15 Lock rod holder (locking means)
18 flange part 19a inclined surface 19b engagement surface 21 outer case 22 slider 23 slide hole 24a insertion port 24b pressing inclined surface 24c one inner side surface 25 elastic hook-shaped piece 26a inner bottom portion 27 biasing member 28 cam groove (cam mechanism) )
29 Locking recess 30 Engaging pin (cam mechanism)
41 Micro switch

Claims (3)

A main body provided with a pressed portion and a heater wire along the lateral width direction on the upper surface of the front edge portion, and pivotally connected to the main body so as to be pivotable in the vertical direction. A pressure handle provided on the lower surface of the cushion member, a vacuum pump disposed inside the main body, and a forward and backward intake nozzle that protrudes forward beyond the pressed portion; In a vacuum packaging device provided with a locking means for holding the pressing state of the pressing handle,
The locking means is
Left and right lock rods respectively projecting downward from left and right side positions of the lower surface of the pressing handle;
Each is arranged at the upper surface position of the main body corresponding to each lock rod, and each time the lock rod is pushed in, a locking state for locking the lock rod and a release state for releasing the lock rod are sequentially A vacuum packaging device comprising left and right lock hook receiving devices that generate a converted operation. Each lock rod is provided at its tip with a collar portion comprising an inclined surface inclined from the lower part to the upper outer side and an engagement surface coupled inward from the upper end of the inclined surface,
Each lock cage is
An outer case having a wide insertion opening at the top and a vertical sliding hole having a narrow width via a pressing inclined surface whose bottom is inclined inwardly from the insertion opening;
Elastic that is accommodated in the sliding hole of the outer case so as to move up and down, and is pressed by one inner surface of the lower part of the sliding hole that is continuous with the inclined pressure surface when being moved downward, and is engaged with the collar of the lock rod. A slider with a bowl-shaped piece;
An urging member that is interposed between the lower part of the slider and the inner bottom part of the outer case and constantly urges the slider upward;
A cam groove having a predetermined shape formed on a side surface of the slider and provided with a locking recess recessed downward at an upper position, and relatively moves in the cam groove as the slider moves up and down. Each time the slider is moved downward, the engaging pin is locked in the locking recess of the cam groove to hold the slider so that it cannot move up. The vacuum packaging device according to claim 1, further comprising a cam mechanism that alternately generates a non-locking state in which the mating pin comes off and the slider can be moved upward.   Each lock bar holder is provided so as to be slidable in the front-rear direction and is normally biased so as to be biased in one direction, while a micro switch is disposed on the opposite side of each lock bar holder in the direction of bias. When the lock rod is pushed into each lock rod receiver, the lock rod is pressed by the lock rod and the lock rod receiver moves in the direction opposite to the biasing direction to turn on each micro switch. The vacuum packaging device according to claim 1 or 2, wherein the vacuum packaging device is provided.

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