JP4834200B2 - Opening device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a lid opening device for opening a lid of an object to be opened such as a can or a bottle, and in particular, a lid of an object to be opened such as a screw lid type can or bottle that is closed by screwing a lid into a screw groove. The present invention relates to a lid opening device having a rotation opening function for rotating and opening the lid.

  Screw-capped cans and bottles that are often used as containers for a wide range of products such as food, beverages, and cosmetics are presupposed to be opened manually, so hold the container with one hand. The lid is usually picked with the other hand and twisted in opposite directions to open the lid. Most of these products are produced at the factory, and cans and bottles are closed with a machine. It is usually tightly closed and difficult to open. However, since the lid part is relatively thin and small compared to the container part, the range to be picked is narrow, and the grip force cannot be fully utilized, making the opening difficult. In view of this situation, many assistive tools for manual work have been proposed (for example, see Patent Document 1). However, in the case of a lid that is particularly tightly closed, it is ergonomically designed to apply more force. It is difficult to hold the container vertically because it tries to grasp and twist the bottle or can in an inclined state, especially when the contents are liquid or powdery products, it will spill with momentum when opening the lid There was also.

In addition, apart from the case of using up all at once, it is normal for the remainder to be stored with the lid closed, and the lid may be a little too tight, or it may be stuck because the contents are attached. In this case, there is a problem that it is difficult to open the lid.
In addition, even if the lid is not so tight, there is a problem that it is difficult for a weak person who has relatively weak grip strength, such as a housewife, a child or an elderly person, to open the lid.
To solve this problem, it is possible to open the lid easily even with one hand while keeping the can or bottle container vertical even by a weak person by mechanically opening the lid using the power of a motor or the like. Many ideas have been proposed. In view of this situation, the present inventor has devised an automatic opening device suitable for opening cans and bottles in which the lid is screwed in and closed by a screw groove (see Patent Document 2).
US Pat. No. 1,894,556 Registered Utility Model No. 3103926

As described above, according to the device described in Patent Document 2, the lid of the lid to be opened can be easily opened by power such as a motor.
However, in the automatic opening device according to the above-described device, it is necessary for the user to lift the upper portion of the automatic opening device and place the object to be opened.For example, for a weak person who has a relatively weak gripping force, There is a problem that the operation itself of lifting the upper part of the automatic opening device for placing the object to be opened is difficult.
In general, in the lid opening device, it is required to suppress the manufacturing cost of the device.

  The present invention has been made in view of the above-described problems, and provides a lid opening device that allows a user to open a lid by a simple operation when opening a lid of a screw lid type lid. For the purpose. Moreover, an object of this invention is to reduce the manufacturing cost at the time of manufacturing a lid opening apparatus.

In order to achieve the above object, a lid opening device according to one aspect of the present invention is applied to a single power source that generates power, a shaft that is rotated by power from the power source, and a lid of an object to be opened. A rotating part that can rotate the lid using the rotational power of the shaft, a displacement mechanism part that changes the distance between the rotating part and the placement position of the cover object by the rotational power, and the shaft possess a transmission unit for transmitting rotational power to said displacement adjusting mechanism, the shaft, said turning unit is connected, said turning unit uses the rotational power sandwich the lid of the target opening Futamono A lid opening device that has a clamping portion and further has an interrupting portion for cutting or connecting the rotational power of the shaft to the transmission portion, wherein the shaft protrudes in a direction perpendicular to the axial direction. And the intermittent portion is formed with a hole through which the shaft is inserted, and the protruding portion. Have if possible engaged gear having holes formed, said gear, said projection and said engaged hole by engaged to transmit the rotational power to the transmitting unit.

Further, in the lid opening device, when the shaft rotates in a predetermined first direction, the turning unit rotates in the lid opening direction, and the displacement mechanism unit is transmitted by the transmission unit. You may make it shorten the space | interval of the said rotation part and the mounting position of the said to-be-opened object with the rotational power which was added.

Further, in the lid opening device, the shaft is provided in parallel to the vertical direction, the rotating portion is rotatably connected to the lower end, and the rotating portion is pushed upward by the lid of the object to be opened. When the shaft is moved upward, the engagement state between the projecting portion of the shaft and the engagement hole of the gear of the intermittent portion is eliminated. Good.
Further, in the lid opening device, the gear receives no rotational force from the protrusion when the shaft rotates in the first direction when the engagement state of the gear of the intermittent portion is eliminated. When the shaft rotates in a second direction different from the first direction, the shaft has a check portion that engages the projecting portion with the engagement hole, and rotates when the shaft rotates in the second direction. It may be.
Further, in the lid opening device, the shaft has a first shaft portion connected to the turning portion and a second shaft portion having the protruding portion, and the first shaft portion and the second shaft portion are The relative position in the axial direction may be variable while engaging in rotation in the same direction.

  Embodiments according to the present invention will be described with reference to the drawings. The embodiments described below do not limit the invention according to the claims, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention.

A lid opening device according to an embodiment of the present invention will be described with reference to the drawings.
First, the lid opening device 1 will be briefly described with reference to FIGS. 1 to 4.
FIG. 1 is a front view illustrating an example of a state of the lid opening device according to the embodiment of the present invention, and FIG. 2 is a front view illustrating another example of the state of the lid opening device according to the embodiment of the present invention. FIG.
As shown in FIGS. 1 and 2, the lid opening device 1 is used as a ceiling type that is fixed to the lower surface of the cupboard 40, for example. Note that any method may be used as a method of fixing the lid opening device 1 to the lower surface of the cupboard 40.

  As shown in FIG. 1, the lid opening device 1 is generally placed in a state where the space between the upper housing 2 and the lower housing 3 is shortened so as not to get in the way. And when opening the lid | cover of to-be-opened objects, such as a bottle and a can, as shown in FIG. 2, when a user pushes switch 22 to an extending | stretching side, And the lid to be opened can be placed on the lid opening device 1.

FIG. 3 is a perspective view showing a state when the can is opened in the lid opening device according to the embodiment of the present invention.
As shown in FIG. 3, a can opener that opens and closes a can wall of a can 60, which is an example of an object to be opened (first object to be opened) that is wound and sealed by the lid opening device 1. When performing, the user attaches the can 60 to the can opener function unit 250 and causes the can opener function unit 250 to execute the can opener. Here, the can 60 is formed by winding and sealing a can lid 61 and a can container portion 62, and the wound portion is a winding end edge portion 63 that circulates in an annular shape. Detailed operation in the can opener will be described later.

FIG. 4 is a perspective view showing a state when the lid opening device according to the embodiment of the present invention is opened.
As shown in FIG. 4, when the lid 51 of the lid-opening object (second lid-opening object) 50 such as a screw lid type can or bottle whose lid is screwed and closed by the lid opening device 1 is closed. The user can widen the space between the upper housing 2 and the lower housing 3 by pressing the switch 22 to the extended side, and the lid opening object 50 can be placed on the lid opening device 1. become. Thereafter, the user places the object to be opened 50 on the opening device 1 and pushes the switch 22 to the shortened side, whereby the cover 51 and the container portion 52 of the object to be opened 50 are held in the opening device 1. Then, the lid 51 is opened. Detailed operation will be described later.

Next, the lid opening device 1 according to one embodiment of the present invention will be described in more detail.
FIG. 5 is a perspective view of a lid opening device according to an embodiment of the present invention.
The lid opening device 1 includes an upper housing 2 and a lower housing 3. The upper housing 2 is provided with, for example, two hollow upper column portions 21. The lower housing 3 is provided with a bottom 31 and, for example, two lower pillars 32 connected to the bottom 31. In the present embodiment, the lower column part 32 can be accommodated inside the upper column part 21 with a minute gap, and when the relative distance between the upper case 2 and the lower case 3 is minimized. As shown in FIG. 1, the lower column part 32 is completely hidden inside the upper column part 21.

The upper housing 2 has a rotating part for sandwiching the lid 51 of the lid 50 to be opened and an upper grip part 200 as an example of a sandwiching part.
The upper grip 200 is connected to the output shaft 108 (see FIG. 8) and is rotatable.
In addition, a switch 22 is provided on the front side of the upper housing 2 to give an instruction to adjust the distance between the upper housing 2 and the lower housing 3. In the present embodiment, when the switch 22 is pushed upward, the distance between the upper housing 2 and the lower housing 3 is shortened, while when the switch 22 is pushed downward, the upper housing 2 and the lower housing 3. And the distance between the two is extended.

Furthermore, a can opener function part 250 is provided on the front side of the upper housing 2. The can opener function unit 250 includes a can feed gear 124 and a can opener lever 251.
The can feed gear 124 rotates when the power of the motor 101 (see FIG. 8) is transmitted, and bites into the lower surface of the winding end edge 63 of the can 60 attached to the lid opening device 1 to rotate the can 60. .
The can opener lever 251 presses the upper portion of the lid 60 for cutting the can lid 61, the cutting blade 253 for cutting the can lid 61, and the winding tightening edge 63 of the can 60. And a can wall pressing portion 254 for making the posture constant.
When the can 60 is placed on the can opener gear 124 and the can opener lever 251 is pushed down, the can 60 is attached to the lid opening device 1 by the can opener gear 124 and the inside of the cutting blade 253 as shown in FIG. .
Further, when the can opener lever 251 is pushed down, the can opener lever 251 pushes down the front end portion 132a of the switching lever 132, the motor 101 rotates, and the can feed gear 124 rotates.

Returning to FIG. 5, on the front surface side of the upper housing 2 of the lid opening device 1, a metal bottle opener 260 formed in a hook shape in which a tip is folded and a base (crown) such as a bottle is hooked is formed. It is fixed. With this bottle opener 260, a crown such as a bottle can be opened.
The bottom 31 of the lower housing 3 is provided with a lower grip 300 that places the lid 50 and grips the lid 50.

FIG. 6 is a cross-sectional view of a part of the lid opening device according to the embodiment of the present invention.
As shown in FIG. 6, feed male screws 149 and 153 are rotatably fixed to the upper housing 2 of the lid opening device 1. Gears 148 and 152 are provided above the feed male screws 149 and 153. With this configuration, the feed male screws 149 and 153 receive power from the motor 101 by the gears 148 and 152 and rotate. The upper housing 2 is provided with a gear box 23 in which the motor 101 and the like are accommodated.
Feed female screws 320 and 321 that are screwed with the feed male screws 149 and 153 are fixed to the upper portion of the lower column portion 32 of the lower housing 3. With this configuration, when the feed male screws 149 and 153 rotate, the feed female screws 320 and 321 are fed on the feed male screws 149 and 153, and the upper housing 2 to which the feed male screws 149 and 153 are fixed, and the feed The distance from the lower housing 3 to which the female screws 320 and 321 are fixed is shortened or extended. The feed male screws 149 and 153 are accommodated inside the lower column part 32. Here, the displacement mechanism section 26 includes feed male screws 149 and 153 and feed female screws 320 and 321.

Next, the internal configuration of the upper casing 2 of the lid opening device 1 will be described.
FIG. 7 is a perspective view for explaining the periphery of the switch of the lid opening device according to the embodiment of the present invention.
When a spring (not shown) is connected to the switch 22 and no operation is performed by the user, the switch 22 is maintained in a neutral position where no shortening or extending operation is performed. When the switch 22 is moved upward (shortening side), the motor 101 has a current for rotating in the rotation direction (referred to as the positive rotation direction) for shortening the distance between the upper housing 2 and the lower housing 3. When supplied and the switch 22 is moved downward (extension side), the motor 101 is rotated in a rotation direction (called a reverse rotation direction) for extending the interval between the upper casing 2 and the lower casing 3. Current is supplied. That is, the direction of the current is switched according to the moving direction of the switch 22 and supplied to the motor 101. The switch 22 is provided with a protrusion 22a.

Further, the upper housing 2 is provided with a bar member 25 that can rotate around a predetermined axis. The distal end portion 25a of the left arm portion of the rod member 25 is positioned below the projection 22a of the switch 22, while the distal end portion 25b of the right arm portion of the rod member 25 is the upper portion of the switching lever 132 (see FIG. 9). It is located below the projection 133a of the end 133 connected to the. When the switching lever 132 is pushed downward from a predetermined initial position, the switch 134 is turned on so that a current is supplied to the motor 101. At this time, the motor 101 is supplied with a current for rotating in the forward rotation direction.
With this configuration, when the switch 22 is moved to the extending side, the protrusion 22a rotates the left arm of the bar member 25 downward and rotates the right arm of the bar member 25 upward. As a result, the distal end portion 25b of the right arm portion restrains the downward movement of the projection portion 133a of the end portion 133, and restrains the switching lever 132 from moving downward from the initial position. .

  When the switching lever 132 is pushed downward, the protrusion 133a of the end 133 of the switching lever 132 rotates the tip 25b of the right arm of the rod member 25 downward, and the left arm of the rod 25 Rotate the part upward. As a result, the distal end portion 25a of the left arm portion restrains the downward movement of the projection 22a of the switch 22, and restrains the switch 22 from moving from the neutral position to the extending side.

  With such a configuration, current supply to the motor 101 by the operation of the switch 134 by the switching lever 132 and current supply to the motor 101 by the operation of the switch 22 to the extending side are prevented from occurring simultaneously. In the present embodiment, since the motor 101 is a direct current motor, when the current is supplied to the motor 101 by the operation of the switch 134 by the switching lever 132 and when the current is supplied to the motor 101 by the operation on the extension side of the switch 22. , The direction of the current is the opposite, so that the above configuration can appropriately prevent such competition.

FIG. 8 is a perspective view for explaining a part of the inside of the lid opening device according to the embodiment of the present invention, and FIG. 9 is the vicinity of the output switching unit of the lid opening device according to the embodiment of the present invention. It is a perspective view for demonstrating. In FIG. 8 and FIG. 9, a part of the configuration is omitted for explanation.
Here, each gear appearing below may be a resin-molded one, a sintered metal, or one obtained by cutting.
A worm gear 101 a is attached to the tip of the output shaft of the motor 101 attached to the gear box 23. The motor 101 is, for example, a motor that rotates by a DC voltage, and the rotation direction can be switched depending on the direction of the applied voltage. The worm gear 101 a meshes with the large gear 102 a of the reduction gear 102. The reduction gear 102 has a small gear 102b formed integrally with the large gear 102a. The small gear 102b has a long tooth width in the axial direction, and can engage with the large gear 103a of the transmission gear 103 in a wide range in the axial direction, as shown in FIG.

  In the transmission gear 103, a small gear 103b is integrally formed above and below the large gear 103a. The small gear 103 b is chamfered from the viewpoint of ease of engagement between the intermediate gear 104 and the intermediate gear 112. A through hole is formed at the center of the large gear 103a and the small gear 103b of the transmission gear 103, and is inserted into the metal rotation shaft 111 so as to be rotatable and slidable. That is, the transmission gear 103 can slide up and down along the rotation shaft 111.

Here, the rotation shaft 111 and the axial direction of the reduction gear 102 are configured substantially parallel to each other, and the small gear 102b of the reduction gear 102 has a long tooth width in the axial direction. Even when sliding up and down, meshing between the small gear 102b of the reduction gear 102 and the large gear 103a of the transmission gear 103 is ensured.
An intermediate gear 104 having a through hole at the center is rotatably supported on the upper side of the rotating shaft 111. In addition to the external teeth, the intermediate gear 104 is formed with internal teeth that mesh with the small gear 103b on the upper side of the transmission gear 103, so that the rotation of the transmission gear 103 can be transmitted.

In this embodiment, the intermediate gear 104 is provided with internal teeth, the transmission gear 103 is provided with a small gear 103b, and the intermediate gear 104 and the transmission gear 103 are engaged with each other by the internal teeth and the small gear 103b. The invention is not limited to this, and any configuration is acceptable as long as the transmission gear 103 and the intermediate gear 104 can engage with each other.
As shown in FIG. 9, an intermediate gear 112 is rotatably supported on the lower side of the rotating shaft 111. Inner teeth that mesh with the lower gear 103 b on the lower side of the transmission gear 103 are formed on the intermediate gear 112. The intermediate gear 112 is provided with a bevel gear 113 for the purpose of changing the rotation direction.

  In this embodiment, the intermediate gear 112 is provided with internal teeth, the transmission gear 103 is provided with a small gear 103b, and the intermediate gear 112 and the transmission gear 103 are engaged with each other by the internal teeth and the small gear 103b. The present invention is not limited to this, and any configuration may be used as long as the transmission gear 103 and the intermediate gear 112 can engage with each other. For example, a configuration in which the transmission gear 103 and the intermediate gear 112 are engaged in a shape such as a square or a regular hexagon.

  With the above configuration, when the transmission gear 103 slides to the upper part of the rotating shaft 111, the small gear 103 b on the upper side of the transmission gear 103 engages with the internal teeth of the intermediate gear 104. In this state, in this embodiment, since the large gear 103a of the transmission gear 103 is engaged with the small gear 102b of the reduction gear 102, the rotation from the motor 101 causes the intermediate gear 104 to follow. Yes. At this time, the lower gear 103 b below the transmission gear 103 is not engaged with the internal teeth of the intermediate gear 112, so that the rotation of the motor 101 is not transmitted to the intermediate gear 112.

  On the other hand, when the transmission gear 103 slides to the lower part of the rotating shaft 111, the small gear 103 b on the lower side of the transmission gear 103 engages with the internal teeth of the intermediate gear 112. In this state, in this embodiment, since the large gear 103a of the transmission gear 103 is engaged with the small gear 102b of the reduction gear 102, the intermediate gear 112 is driven by the rotation from the motor 101. Yes. At this time, since the small gear 103 b on the upper side of the transmission gear 103 is not engaged with the internal teeth of the intermediate gear 104, the rotation of the motor 101 is not transmitted to the intermediate gear 104. Thus, either the intermediate gear 104 or the intermediate gear 112 is selectively driven according to the position of the transmission gear 103.

Next, the configuration will be further described along the flow of power transmission when the transmission gear 103 slides to the upper part of the rotating shaft 111. Returning to FIG. 8, the external gear of the intermediate gear 104 meshes with the large gear of the reduction gear 105. The small gear of the reduction gear 105 meshes with the large gear of the reduction gear 106. Further, the small gear of the reduction gear 106 meshes with the final stage gear 107.
A through hole 107b is formed at the center of the central boss 107a of the final gear 107. Further, a deep groove portion 107c for engaging with a knock pin (not shown) is provided at the upper end portion of the central boss portion 107a of the final gear 107.
The lower shaft portion 108a of the metal output shaft 108 is inserted into the through hole 107b of the final gear 107. A knock pin is driven horizontally into the lower shaft portion 108a of the output shaft 108, and the knock pin is configured to engage with the deep groove portion 107c. With this configuration, the rotation of the final gear 107 can be transmitted to the output shaft 108 via the knock pin. The final stage gear 107 is supported by the gear box 23 at the top and bottom in a rotatable state. Since the upper grip 200 is fixed to the lower end of the output shaft 108 with a screw, it is possible to realize a function of rotating and opening a screw lid type can or bottle lid that is screwed and closed.

Next, the configuration will be further described along the flow of power transmission when the transmission gear 103 slides to the lower part of the rotating shaft 111.
As shown in FIG. 9, the 45-degree bevel gear 113 as the external teeth of the intermediate gear 112 is configured to mesh with the 45-degree bevel gear 120. The bevel gear 120 is fixed to a shaft 126 (see FIG. 7). Returning to FIG. 8, the small gear 121 is fixed to the shaft 126. The small gear 121 meshes with a small gear 122 having exactly the same specifications as the small gear 121 for the purpose of reversing the rotation direction. The small gear 122 meshes with the gear 123 at the final stage. The gear 123 is fixed to one end of the output shaft 125. A can feed gear 124 is fixed to the other end of the output shaft 125. With this configuration, it is possible to realize a can opener function that cuts and opens a can wall of a method of winding and sealing.

  The present embodiment basically aims to increase the rotational torque by reducing the rotational speed of the motor 101 on the output shaft side. In this embodiment, the rotational speed is set so that the output shaft 108 is smaller than the output shaft 125, and naturally the rotational torque is set so that the output shaft 108 is larger than the output shaft 125. That is, the lid opening device 1 is configured such that the reduction ratio by the configuration for transmitting power to the output shaft 108 is larger than the reduction ratio by the configuration for transmitting power to the output shaft 125. In this embodiment, the ratio of the rotational torque of both output shafts is set to 5: 1. However, the present inventor has found that the ratio is preferably between 2: 1 and 10: 1 through many experiments. It has gained. Note that other ratios may be used.

Next, the configuration and operation of the output switching unit for selectively driving the intermediate gear 104 and the intermediate gear 112 will be described.
As shown in FIG. 9, the transmission gear 103 is engaged with the intermediate gear 104 when the switching lever 132 is not pushed down by the user due to the repulsive force of the return spring 131. . The switching lever 132 is integrally formed of resin. As shown in FIG. 5, the distal end portion 132 a of the switching lever 132 is configured to protrude to a position for receiving the can opener lever 251 on the front surface of the upper housing 2. A guide pin 130 is inserted into the sliding portion 132 b of the switching lever 132, and can slide up and down along the guide pin 130. The sliding portion 132b is always urged upward by the return spring 131. The fork part upper jaw 132c and the fork part lower jaw 132d which are divided into two branches of the switching lever 132 sandwich the large gear of the transmission gear 103 from above and below. The transmission gear 103 is slidable up and down along the rotation shaft 111. However, in the present embodiment, when the switching lever 132 is not pushed down by the repulsive force of the return spring 131, in the present embodiment, It is biased upward. That is, the transmission gear 103 is engaged with the intermediate gear 104.

On the other hand, when the front end 132 a of the switching lever 132 is pushed down against the repulsive force of the return spring 131, the transmission gear 103 is engaged with the intermediate gear 112. At that time, the SW operation unit 132e pushes down the knob of the SW (switch) 134, and the power is supplied to the motor 101 by the SW 134.
An end portion 133 is connected to the upper portion of the switching lever 132 and can move together with the switching lever 132. Note that a protrusion 133 a is formed at the end 133.

  When the distance between the upper housing 2 and the lower housing 3 is changed, when the screw lid type can or bottle lid is rotated to open the lid, the switching lever 132 is biased upward by the return spring 131. Therefore, since the transmission gear 103 is engaged with the intermediate gear 104, that is, the shaft 108 is in an effective state (a state in which power can be transmitted), the upper gripper 200 rotates when the switch 22 is moved. . In this case, the shaft 125 that is activated when the transmission gear 103 engages with the intermediate gear 112 is in a disconnected state (that is, a state in which no power is transmitted), so that the can feed gear 124 is driven. There is absolutely nothing.

  On the other hand, when the lid is opened using the can opener function, the user pushes down the can opener lever 251. At this time, the tip end portion 132 a of the switching lever 132 is pushed downward by the can opener lever 251, so that the entire switching lever 132 formed integrally with the guide pin 130 against the repulsive force of the return spring 131. Pushed down. As a result, the fork portion upper jaw 132c pushes down the transmission gear 103 and slides the small gear 103b of the transmission gear 103, which has a large chamfer, to a position where it engages with the internal teeth of the intermediate gear 112. At this time, the SW operation unit 132e simultaneously pushes down the knob of the SW 134 to turn on the power, so that the motor 101 is started and the can feed gear 124 fixed to the output shaft 125 rotates. Therefore, when the lid is opened using the can opener function, the upper grip 200 fixed to the output shaft 108 is never driven.

Next, the intermittent part which performs cutting | disconnection and connection of the rotational power of the output shaft 108 of the lid opening apparatus 1 is demonstrated.
FIG. 10 is a perspective view for explaining the periphery of the intermittent portion of the lid opening device according to the embodiment of the present invention.
The output shaft 108 is provided in the vertical direction and includes a lower shaft portion 108a as an example of a first shaft portion and an upper shaft portion 108b as an example of a second shaft portion. The upper end portion of the lower shaft portion 108a is formed in a concave shape, and the lower end portion of the upper shaft portion 108b is formed in a convex shape. The upper end portion of the lower shaft portion 108a and the lower end portion of the upper shaft portion 108b are engaged with each other so that the rotation of the lower shaft portion 108a is transmitted to the upper shaft portion 108b. In addition, the upper shaft portion 108a and the lower shaft portion 109b can change relative positions in the vertical direction. If the upper shaft portion 108a and the lower shaft portion 109b are within a predetermined range, the meshing state can be maintained. The rotation is transmitted to the upper shaft portion 108b. In the present embodiment, the lower shaft portion 108a and the upper shaft portion 108b are arranged so that the meshing state can always be maintained.
The upper shaft portion 108 b is inserted into a through hole 140 a formed in the intermittent gear 140.
A pin 110 as an example of a protruding portion is horizontally provided on the upper shaft portion 108b. At both ends of the pin 110, a pulley 110a is provided. The pulley 110a is made of, for example, a highly lubricious resin. A washer 144 is inserted above the pin 110 of the upper shaft portion 108b. As shown in FIG. 6, the washer 144 is urged downward by a spring 145 provided between the washer 144 and the wall surface of the upper housing 2. Therefore, the pin 110 is urged downward by the washer 144.

Returning to FIG. 10, an engagement hole 140 b for engaging with the pin 110 is provided at the center of the intermittent gear 140. Further, the support portion 141 on the upper surface of the intermittent gear 140 rotatably supports one end side of the check portion 142. The other end side of the check portion 142 is connected to the spring 143 on the upper surface of the intermittent gear 140 and is biased upward. For this reason, the check portion 142 is in a state in which the side to which the spring 143 is connected is raised above the position of the engagement hole 140b of the connection gear 140. Here, the intermittent portion 27 includes an intermittent gear 140, a support portion 141, a check portion 142, and a spring 143.
According to the intermittent portion 27, when the pin 110 of the upper shaft portion 108b is engaged with the engagement hole 140b of the intermittent gear 140, the power of the upper shaft portion 108b is transmitted to the intermittent gear 140, and further the displacement It is transmitted to the mechanism unit 26.

  In addition, when the pin 110 of the upper shaft portion 108b is positioned above the engagement hole 140b of the intermittent gear 140 and the upper shaft portion 108b rotates counterclockwise as viewed from above, the pin 110 is Then, the check portion 142 is pressed to rotate counterclockwise on the check portion 142, and the power of the upper shaft portion 108 b is not transmitted to the intermittent gear 140. Therefore, the distance between the upper housing 2 and the lower housing 3 is not shortened by the displacement mechanism 26.

  Further, when the pin 110 of the upper shaft portion 108b is positioned above the engagement hole 140b of the intermittent gear 140 and the upper shaft portion 108b rotates clockwise as viewed from above, the pin 110 is reversed. Colliding with the stop 142, coupled with the downward biasing force of the spring 145, it falls into the engagement hole 140b and engages. Therefore, power is transmitted to the intermittent gear 140 from the pin 110 of the upper shaft portion 108b. Therefore, power is transmitted to the displacement mechanism 26 and the distance between the upper housing 2 and the lower housing 3 is extended.

FIG. 11 is a perspective view for explaining the periphery of the displacement mechanism portion of the lid opening device according to the embodiment of the present invention.
The displacement mechanism section 26 has feed male screws 149 and 153 and feed female screws 320 and 321. Rotation of the intermittent gear 140 is transmitted to the displacement mechanism unit 26 by the transmission unit 28 having the gears 146, 147, 148, 150, 151, 152. Specifically, the intermittent gear 140 is engaged with the small gear of the gear 146, the large gear of the gear 146 is engaged with the small gear of the gear 147, and the large gear of the gear 147 is engaged with the gear 148. Further, the intermittent gear 140 is engaged with the small gear of the gear 150, the large gear of the gear 150 is engaged with the small gear of the gear 151, and the large gear of the gear 151 is engaged with the gear 152.

  With this configuration, when the intermittent gear 140 rotates, the gear 148 and the gear 152 rotate. As a result, the feed male screw 149 connected to the gear 148 rotates, and the feed male screw 153 connected to the gear 152 also rotates. As a result, the feed female screws 320 and 321 are fed on the feed male screws 149 and 153, and the distance between the upper housing 2 and the lower housing 3 changes.

Next, the configuration of the upper grip 200 will be described.
FIG. 12 is an exploded perspective view of the upper gripping portion of the lid opening device according to the embodiment of the present invention.
The upper grip portion 200 is connected to the lower shaft portion 108 a of the output shaft 108 that is suspended from the center of the lower surface of the upper housing 2. The lower shaft portion 108a has a square portion at the tip and is provided with an axial screw hole.
The bobbin 209 wound in a state where the return spring 210 formed by the right-handed string spring is hooked at the upper end engages with the square hole formed in the bobbin 209 and the square part of the lower shaft part 108a of the output shaft 108. Inset. As shown in FIG. 6, a spring 155 is provided on the top of the bobbin 209 and biased downward. Returning to FIG. 12, the slider holder 204 includes a pinion gear 201, a slider 206 formed so that the rack portion 206 a meshes with the pinion gear 201, and a slider 207 formed so that the rack portion 207 a meshes with the pinion gear 201. Is housed inside. The end portions 206b and 207b of the sliders 206 and 207 are folded 180 degrees so that the end face faces inward in consideration of the purpose of holding the lid 51, and the holding claws 208 with anti-slip material made of rubber or the like are provided. It is inserted into the end face. This clamping claw 208 is suitable for evenly clamping the lid 51 having a small thickness of the bottle 50 from both sides.

A friction pad 203 is attached to the slider holder 204. The pinion gear 201 is mounted below the bobbin 209 and the slider holder 204 so that a square hole formed in the pinion gear 201 engages with a square portion of the lower shaft portion 108a of the output shaft 108, and the tip is fixed by a screw 202. The As a result, the slider holder 204 is supported by the pinion gear 201 at the bottom and is held rotatably.
The lower end of the return spring 210 is hooked in the small hole 205 of the slider holder 204. In this case, after twisting the return spring 210 to such an extent that the return force, that is, the force for separating the holding claws 206b and 207b, is maintained even when the pair of clamping claws 206b and 207b are farthest apart. The lower end of the return spring 210 is hooked in the small hole 205.

In the upper grip 200, when the motor 101 generates power for opening the lid, the lower shaft portion 108a of the output shaft 108 tends to rotate in the clockwise direction when viewed from below. At this time, when the friction pad 203 exposed on the lowermost surface of the upper gripper 200 is frictionally engaged with the lid 51, the rotation of the upper gripper 200 itself is restricted. Then, since the bobbin 209 and the pinion gear 201 around which the return spring 210 is wound are screwed to the lower shaft portion 108a of the output shaft 108, the pinion gear 201 driven by the lower shaft portion 108a of the output shaft 108 is viewed from below. Rotate around. Accordingly, the sliders 206 and 107 operate so as to slide horizontally toward the center of rotation, so that the pair of clamping claws 206b and 207b approach the both sides while sandwiching the lid 51 from both sides, and the clockwise direction The lid 51 is accurately drawn to the axis of rotation while rotating in the direction of no rotation (locked state). Until the locked state is reached, the rotation of the slider holder 204 of the upper grip 200 is restrained, and the bobbin 142 continues to rotate, so that the right-handed return spring 210 is urged and accumulates the repulsive force. .
When the container 52 is removed from the opening device 1 after the lid 51 of the bottle 50 is opened, the repulsive force of the stored return spring 210 directs the pair of holding claws 206b and 207b away from each other. Since the upper grip 200 is rotated in the reverse direction, the force for sandwiching the lid 51 is loosened, and the lid 51 can be easily removed.

Next, the configuration of the lower grip 300 will be described.
FIG. 13 is an exploded perspective view of the lower gripping portion of the lid opening device according to the embodiment of the present invention.
A fixing pin 302 projects vertically from the center of the bottom 31 of the lower housing 3. A circular hole is formed in the fixed pin 302 at a substantially central portion, and a slider holder 303 having a folded portion formed by folding a pair of opposing sides is rotatably connected around the fixed pin 302 as a rotation center. Is done. The slider holder 303 accommodates therein a pinion gear 307, a slider 304 formed so that the rack portion 304 a meshes with the pinion gear 307, and a slider 305 formed so that the rack portion 305 a meshes with the pinion gear 307. The The pinion gear 307 is engaged with the square portion at the tip of the fixing pin 302 and is fixed by the screw 310.

In the lower grip 300, when the slider holder 303 is rotated counterclockwise around the fixed pin 302 as viewed from above (corresponding to rotating the pinion gear 307 clockwise), the rack portions 304a and 305a are The pinion gear 307 rotates around the pinion gear 307 and is moved in a meshing manner to slide horizontally toward the center of rotation.
At the ends of the sliders 304 and 305 opposite to the fixing pins 302, main bone portions 304c and 305c are provided so as to protrude perpendicularly to the surfaces of the sliders 304 and 305. A turntable 308 having a slip stopper made of a rubber material or the like on the surface is placed on the upper surface of the folded portion of the slider holder 303. The main bone portions 304 c and 305 c are inserted into a long hole portion 309 formed in the turntable 308 and are put out to the upper side of the turntable 308. A gripping claw 311 having a slip stopper made of a material such as rubber on the surface is inserted into the end faces of the main bone portions 304c and 305c from above, and is held with a turntable 308 interposed therebetween as shown in FIG. .

  In the lower gripping unit 300, the bin 50 is placed on the rotating table 308, and the rotating table 308 is rotated by rotating the bin 50 as described later, and the slider 304 is moved along the side surface of the elongated hole 309. 305, the main bones 304c and 305c are rotated counterclockwise as viewed from above. As a result, as described above, the sliders 304 and 305 slide horizontally toward the center, so that the pair of gripping claws 311 inserted and fixed to the main bone portions 304c and 305c mutually move the container portion 52 of the bottle 50 on both sides. While pushing from the center, the center of the turntable 308 is accurately drawn toward the center axis of the turntable 308 that coincides with the rotation axis of the rotation torque applied when the lid is opened. In the lid opening device 1 of the present embodiment, the central axis of the lower gripping part 300 and the rotational axis of the upper gripping part 200 are configured to substantially coincide with each other. When the lid 51 is opened, it can be used efficiently.

Next, an operation procedure of the lid opening device 1 when the lid 51 of the bin 50 is opened and an operation of the lid opening device 1 at that time will be described with reference to the drawings.
Here, before the operation is started, the lid opening device 1 will be described below, assuming that the distance between the upper housing 2 and the lower housing 3 is in the shortest storage state, as shown in FIG.
In this case, the user continues to push the switch 22 of the lid opening device 1 to the extension side, and places the bin 50 to be opened between the upper housing 2 and the lower housing 3 of the lid opening device 1. It is necessary to be able to place it. When the switch 22 is pushed to the extending side, the motor 101 is supplied with power for generating rotational power for extending between the upper casing 2 and the lower casing 3. When the power is supplied to the motor 101 in this manner, the motor 101 rotates, and the rotational power is transmitted to the output shaft 108 and further to the displacement mechanism unit 26, and the upper housing 2 and the lower housing 3. The interval is extended.

Thus, after the distance between the upper housing 2 and the lower housing 3 is extended so that the bin 50 to be opened can be placed, the user can place the bin 50 to be opened in the lower housing. It is necessary to continue to push the switch 22 toward the shortening side.
When the switch 22 is pushed to the shortening side, the motor 101 is supplied with power for generating rotational power for shortening the space between the upper housing 2 and the lower housing 3. When the power is supplied to the motor 101 in this manner, the motor 101 rotates, and the rotational power is transmitted to the output shaft 108 and further to the displacement mechanism unit 26, and the upper housing 2 and the lower housing 3. The interval of is shortened.

FIG. 14 is a first diagram for explaining the operation of the lid opening device according to the embodiment of the present invention. Specifically, the bin 50 is placed on the lower grip 300 of the lid opening device 1. A state in which the distance between the upper housing 2 and the lower housing 3 is being shortened later is shown.
As shown in the figure, the engagement portion D between the lower shaft portion 108a and the upper shaft portion 108b is engaged with a gap therebetween. In this state, the power of the motor 101 is transmitted to the lower shaft portion 108a and further transmitted to the upper shaft portion 108b. Since the pin 110 of the upper shaft portion 108b is engaged with the engagement hole 140b of the intermittent gear 140, the power of the upper shaft portion 108b is transmitted to the intermittent gear 140 and transmitted to the displacement mechanism portion 26. . Thereby, the space | interval of the upper housing | casing 2 and the lower housing | casing 3 is shortened. At this time, the upper gripper 200 rotates counterclockwise as viewed from above.
Further, when the user continues to push the switch 22 to the shortened side, the distance between the upper housing 2 and the lower housing 3 is further shortened. As a result, the surface provided in the upper grip 200 is made of rubber or the like. The lower surface of the friction pad 203 covered with a material having a large friction coefficient and not easily slips is pressed against the upper surface of the lid 51.

  When the lower surface of the friction pad 203 is pressed against the upper surface of the lid 51, the rotation of the upper gripper 200 itself is restrained, and the pinion gear 201 driven by the output shaft 108 is viewed from the upper gripper. Rotation is further counterclockwise than 200 rotations. Accordingly, the sliders 206 and 207 move so as to slide horizontally toward the center of rotation, so that the pair of clamping claws 206b and 207b approach the both sides and sandwich the lid 51 from both sides, counterclockwise. While rotating in the direction, the lid 51 is accurately drawn to the axis of rotation, and no further shift (locked state) occurs. Until the locked state is reached, the rotation of the slider holder 204 of the upper grip 200 is restrained, and the bobbin 209 continues to rotate, so that the right-handed return spring 210 is urged and accumulates the repulsive force. .

In addition, when the lower surface of the friction pad 203 is pressed against the upper surface of the lid 51, the bin 50 pressed by the upper gripping portion 200 starts rotating, and the rotating table 308 is seen from above. It will rotate clockwise. As a result, the pair of gripping claws 311 of the lower gripping part 300 pushes the container part 52 of the bottle 50 from both sides evenly, toward the central axis of the turntable 308 that coincides with the rotational axis of the rotational torque applied when the lid is opened. It will be drawn accurately, and it will be in a state where it will not come any further (locked state).
Note that the above-described operation in which the upper gripper 200 is locked and the operation in which the lower gripper 300 is locked may occur in advance or in parallel depending on various conditions. In some cases.
When the upper gripping portion 200 and the lower gripping portion 300 are in a locked state, the upper gripping portion 200 to which the power of the motor 101 is transmitted still rotates, while the lower gripping portion 300 is attached to the container portion 52. On the other hand, the force is applied in the clockwise direction when viewed from above. As a result, the lid 51 and the container part 52 are twisted by forces opposite to each other, and the closed lid 51 is opened.

FIG. 15 is a second view for explaining the operation of the lid opening device according to the embodiment of the present invention. Specifically, immediately after the lid 51 of the bin 50 is opened by the lid opening device 1. Indicates the state.
As shown in the figure, the engagement portion D between the lower shaft portion 108a and the upper shaft portion 108b is engaged with no gap. This engagement portion D is because the lower shaft portion 108a is pressed upward by the lid 51 rising along the screw groove when the lid 51 of the bin 50 is opened, and the upper housing portion 2 and the lower housing Under the influence of at least one of the fact that the interval with the body part 3 is shortened, the state is engaged without a gap, and then the lower shaft part 108a pushes the upper shaft part 108b upward.

  Thus, when the lower shaft portion 108a pushes the upper shaft portion 108b upward, the pin 110 of the upper shaft portion 108b is disengaged upward from the engagement hole 140b of the intermittent gear 140, and the engagement state between the engagement hole 140b and the pin 110 Is resolved. In this case, the upper shaft portion 108b rotates counterclockwise when viewed from above, and the pin 110 that is disengaged from the engagement hole 140b of the intermittent gear 140 is counterclockwise when viewed from above at a position disengaged from the engagement hole 110. Rotate around. When the pin 110 rotates counterclockwise, the pin 110 rotates by pushing the check portion 142 downward.

Therefore, the rotational power of the shaft portion 108b is not transmitted to the intermittent gear 140, and as a result, is not transmitted to the displacement mechanism portion 26, and the interval between the upper housing 2 and the lower housing 3 is not shortened. Accordingly, it is possible to appropriately prevent a situation in which an excessive force is applied to the bin 50 and a situation in which an excessive load is applied to the lid opening device 1 due to the repulsive force from the bin 50.
Even after the lid 51 is opened, when the switch 22 is pressed to the shortening side, the upper gripping portion 200 further rotates with the lid 51 gripped. In this case, the lid 51 moves up and down along the thread groove of the container portion 52 because a force to press the lid 51 downward is applied by the weight of the upper gripping portion 200 and the repulsive force of the spring 155. become.

FIG. 16 is a third diagram for explaining the operation of the lid opening device according to the embodiment of the present invention. Specifically, after the lid 51 of the bin 50 is opened by the lid opening device 1, the lid is opened. 51 shows a state of moving downward.
As shown in the figure, when the lid 51 moves downward after the lid 51 of the bin 50 is opened by the lid opening device 1, the lower shaft portion 108a is moved downward by the urging force of the spring 155. The gap is generated at the engagement portion D between the lower shaft portion 108a and the upper shaft portion 108b.
In this way, when the lid 51 moves downward, the influence on the upper shaft portion 108b is absorbed by the gap of the engagement portion D, so that the upper shaft portion 108b can be prevented from being pulled downward and intermittently. It is possible to appropriately prevent a load from being applied to the gear 140 and the like.
After the lid 51 of the bin 50 is opened by the lid opening device 1, in order to remove the bin 50 from the lid opening device 1, the user needs to push the switch 22 to the extending side.

When the switch 22 is pushed to the extending side, the motor 101 is supplied with power for generating rotational power for extending between the upper casing 2 and the lower casing 3. When the power is supplied to the motor 101 in this way, the motor 101 rotates and the rotational power is transmitted to the output shaft 108. In the present embodiment, the output shaft 108, that is, the lower shaft portion 108a and the upper shaft portion 108b rotate clockwise as viewed from above.
After the lid 51 is opened, the pin 110 of the upper shaft portion 108b is positioned above the intermittent gear 140 as shown in FIG. In this case, when the upper shaft portion 108b rotates clockwise as viewed from above, the pin 110 of the upper shaft portion 108b collides with the check portion 142 connected to the intermittent gear 140 and is moved downward by the spring 145. Coupled with the urging force, it falls into the engagement hole 140b for engagement. Accordingly, clockwise rotational power as viewed from above is transmitted from the pin 110 of the upper shaft portion 108b to the intermittent gear 140 through the engagement hole 140b. As a result, power is transmitted to the displacement mechanism 26, and the distance between the upper housing 2 and the lower housing 3 is extended.

Further, since the distance between the upper housing 2 and the lower housing 3 is extended, the stored return spring 210 is more than the resistance force against the clockwise rotation as viewed from above applied to the lower shaft portion 108a. The repulsive force of the upper gripping part 200 is won and the upper gripping part 200 is rotated in the clockwise direction so that the gripping claws 208 of the upper gripping part 200 are separated from each other. It comes off from the gripping part 200.
In this state, the container portion 52 of the bin 50 is in a state of being gripped by the lower gripping portion 300, so that the user can rotate the lower gripping portion 300 clockwise to see the lower gripping portion. The bin 50 with the lid 51 opened can be removed from the unit 300 and used.

Next, the can opener operation by the can opener function of the lid opening device 1 when the can 60 of the can 60 that is tightened and sealed is torn and opened will be described.
In the case of using the can incision lid function in the lid opening device 1, the user first puts the can opener with the outer peripheral lower surface of the winding end edge 63 of the can 60 placed on the can feed gear 124. It is necessary to push down the lever 251.
In this way, when the user pushes down the can opener lever 251, the tip of the metal cutting blade 253 elastically supported in the middle of the can opener lever 251 can be easily placed inside the peripheral edge of the lid 61 by the principle of lever. Pierce. As a result, the can 60 is supported by the upper surface of the can feed gear 124 and the inner surface of the cutting blade 253, and the can 60 is attached to the opening device 1 as shown in FIG.

  When the user further depresses the can opener lever 251 from this state, the cutting blade 253 keeps the blade surface in the advancing direction and stays at the limit of the elastic support force, and only the can opener lever 251 can be pushed down. The front end 132a of the switching lever 132 protruding forward from the front of the body 2 is pushed downward against the repulsive force of the return spring 131 (see FIG. 9). When the tip end portion 132a of the switching lever 132 is pushed down, the knob of the SW 134 is pushed down by the SW operation portion 132e of the switching lever 132, and the motor 101 starts to rotate. In this case, the rotational power of the motor 101 is not transmitted to the upper gripping part 200 or the displacement mechanism part 26 side, but is transmitted only to the can opener function part side. Therefore, the can feed gear 124 starts to rotate counterclockwise as viewed from the front.

The blade surface of the cutting blade 253 is pierced in the direction of pressing the lid 61, and the lower surface of the winding end edge portion 63 is strongly pressed downward and bites into the sharp gear tip of the can feed gear 124. When the can feed gear 124 rotates, the can 60 is fed by the can feed gear 124.
As a result, the can 60 is torn by the blade surface of the cutting edge 253, and when the can 60 makes a clockwise turn along the annular winding end edge 63, the opening of the can 60 is completed.

  While the lid 61 is being torn, the blade surface of the cutting blade 253 is constrained in a state where it is sandwiched between the lid 61 and pressed downward, so that the user keeps pushing the can opener lever 251 by hand. Even if not, the cutting blade 253 is held at a position where the lid 61 is torn. On the other hand, when the opening of the lid 61 is completed, the blade surface of the cutting blade 253 is released from restraint, and since the repulsive force of the return spring 131 is applied to the switching lever 132, the switching lever 132 is pushed downward. The power to lower disappears. As a result, the automatic return type SW 134 turns off the power depending on its own return force, and the rotation of the motor 101 is stopped. After that, the user can raise the cutting blade 253 that has pressed the winding end edge 63 from the inside by raising the can opening lever 251, and can use the can 60 by removing it from the lid opening device 1. become able to. The torn lid 61 is adsorbed by the lid adsorbing portion 252.

  According to the lid opening device according to the present embodiment, the distance between the placement position for opening the lid object to be opened and the rotating part can be displaced by one motor, and the lid of the lid object is opened. Can do. Further, the can open lid function can be used by the same motor. In addition, while one of the functions of the can open lid function and the revolving lid function is being used, it is possible to completely prevent the output shaft of the function not being used from operating and improve safety. In addition, since only one motor is required, the manufacturing cost can be reduced.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and can be applied to various other modes.
For example, in the above embodiment, a ceiling-type lid opening device that is suspended at the lower part of the cupboard 40 or the like has been described as an example. However, the present invention is not limited to this, and for example, the present invention is applied to a desktop lid opening device. The invention can be applied. In the case of a desktop lid opening device, when the switch 22 is pushed upward, the distance between the upper casing 2 and the lower casing 3 is extended, and when pressed downward, the upper casing 2 and the lower casing 3 are pushed. It is preferable to shorten the interval with 3.
Further, in the above embodiment, the lid 51 is rotated by sandwiching the lid 51 from both sides as the rotating part. However, the present invention is not limited to this, and for example, by a frictional force pressing the lid 51 from the upper part. You may make it rotate.

It is a front view which shows an example of the state of the lid opening apparatus which concerns on one Embodiment of this invention. It is a front view which shows the other example of the state of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the state at the time of can open of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the state at the time of lid opening of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view of a lid opening device concerning one embodiment of the present invention. It is the figure which made a section of a lid opening device concerning one embodiment of the present invention a section. It is a perspective view for demonstrating the switch periphery of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view for demonstrating a part of inside of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view for demonstrating the output switching part periphery of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view for demonstrating the intermittent part periphery of the lid opening apparatus which concerns on one Embodiment of this invention. It is a perspective view for demonstrating the displacement mechanism part periphery of the lid opening apparatus which concerns on one Embodiment of this invention. It is a disassembled perspective view of the upper holding part of the lid opening apparatus which concerns on one Embodiment of this invention. It is a disassembled perspective view of the lower holding part of the lid opening apparatus which concerns on one Embodiment of this invention. It is the 1st figure for explaining operation of the lid opening device concerning one embodiment of the present invention. It is a 2nd figure for demonstrating operation | movement of the lid opening apparatus which concerns on one Embodiment of this invention. It is a 3rd figure for demonstrating operation | movement of the lid opening apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Opening apparatus, 2 upper housing | casing, 3 lower housing | casing, 26 displacement mechanism part, 28 transmission part, 50 bin, 51 lid | cover, 101 motor, 108 output shaft, 200 upper holding part.

Claims (5)

A single power source to generate power,
A shaft that is rotated by power from the power source;
A rotating portion that abuts on the lid of the object to be opened and can rotate the lid using the rotational power of the shaft;
A displacement mechanism unit that changes a distance between the rotating unit and the placement position of the object to be opened by rotational power;
Possess a transmission unit for transmitting the rotational power of the shaft to the displacement mechanism part,
The convoluted part is connected to the shaft;
The rotating part has a clamping part that clamps the lid of the object to be opened using rotational power,
Furthermore, the lid opening device has an intermittent portion for cutting or connecting the rotational power of the shaft to the transmission portion,
The shaft has a protruding portion protruding in a direction perpendicular to the axial direction,
The intermittent portion includes a gear having a hole through which the shaft is inserted and an engagement hole that can be engaged with the protrusion.
The gear is configured to transmit the rotational power to the transmission unit when the projecting portion and the engagement hole engage with each other. When the shaft is rotating in a predetermined first direction, the rotating part rotates in the opening direction of the lid, and the displacement mechanism part is rotated by the rotational power transmitted by the transmitting part. The lid opening device according to claim 1, wherein an interval between the portion and the placement position of the lid object is shortened. The shaft is provided in parallel with the vertical direction, and the rotating portion is rotatably connected to a lower end, and the rotating portion can be moved upward by being pushed upward by a lid of the lid object to be opened. And
3. The lid opening device according to claim 2, wherein when the shaft is moved upward, the engagement state between the protruding portion of the shaft and the engagement hole of the gear of the intermittent portion is eliminated. . The gear receives no rotational force from the protrusion when the shaft rotates in the first direction when the engagement state of the gear of the intermittent portion is eliminated, and the first direction and The rotation mechanism includes a check portion that engages the protrusion with the engagement hole when the shaft rotates in a different second direction, and rotates when the shaft rotates in the second direction. 4. The lid opening device according to 3. The shaft has a first shaft portion connected to the turning portion and a second shaft portion having the protrusion, and the first shaft portion and the second shaft portion are rotatable in the same direction. The lid opening device according to claim 4, wherein the relative position in the axial direction is variable while engaging with.

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