JP3161839U - Lid lock mechanism and pan equipped with the same - Google Patents

Abstract

A lid lock mechanism capable of improving safety and a pan provided with the same. Each engaging portion 11 can be locked by pressing a first operating portion 13 from above, and each engaging portion 11 is locked by pressing a second operating portion 14 from above. It is set as the structure which can be set as a cancellation | release state. In this way, since the operations for switching between the locked state and the unlocked state are both by pressing from above, compared to the configuration for operating the operation unit arranged close to the pan lid 4, It is possible to prevent the user from being burned by coming into contact with the pan lid 4, and safety can be improved. [Selection] Figure 1

Description

  The present invention relates to a lid locking mechanism for locking a lid that covers an opening of a container from above to the container, and a pan equipped with the lid locking mechanism.

  For example, in a pressure cooker or the like, a lid (pan lid) that covers an opening of a container (pan body) from above is locked to the container by a lid locking mechanism. As an example of this type of pressure cooker, Patent Document 1 below discloses a configuration in which the lid is locked to the container by engaging the two fastening pieces 15a and 15b with the peripheral edge of the container. Yes.

  In the configuration disclosed in Patent Document 1, by operating the opening / closing operation control means 50 provided on the lid, each of the fastening pieces 15a and 15b is engaged with the peripheral portion of the container (see FIG. 2). The engagement state of each of the fastening pieces 15a and 15b with respect to the peripheral edge of the container can be switched to the unlocked state (see FIG. 3). The opening / closing operation control means 50 is provided with a fixed operation button 52 that can be pressed from above. When the fixed operation button 52 is pressed, the spring force of the tension spring 45 acts, and the fastening pieces 15a and 15b are moved. It is configured to be in a locked state (see paragraph [0046]).

  The opening / closing operation control means 50 is provided with a release operation button 56 that can be operated in the radial direction (lateral direction). By operating the release operation button 56, the fastening pieces 15 a and 15 b are brought into the unlocked state. (See paragraph [0037]).

Japanese Patent No. 3073668

  However, in the configuration disclosed in Patent Document 1, the tightening pieces 15a and 15b are locked by the spring force of the tension spring 45, and therefore, when a foreign object is caught in the mechanism, the locked state is completely achieved. There is a risk that it will not. Further, when releasing the locked state, it is necessary to operate the release operation button 56 disposed in the vicinity of the lid, and there is a risk that the user may be burned when contacting the lid. Thus, the configuration disclosed in Patent Document 1 has a problem that safety is not sufficient.

  Further, in the configuration disclosed in Patent Document 1, the release operation button 56 is configured to be operable in the radial direction (lateral direction), so that the release operation button 56 is positioned on the near side that can be viewed from the user side. It is necessary to attach a lid to the container, and there is a problem that operability is not sufficient.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a lid lock mechanism capable of improving safety and a pan provided with the same. Moreover, an object of this invention is to provide the lid | cover lock mechanism which can improve operativity, and a pan provided with this.

  A lid locking mechanism according to the present invention is a lid locking mechanism for locking a lid that covers an opening of a container from above to the container, and is provided at a peripheral edge of the lid and engages with the peripheral edge of the container A plurality of engaging portions for attaching the lid to the container, and a locked state in which the plurality of engaging portions are engaged with a peripheral portion of the container by interlocking the plurality of engaging portions; The interlocking mechanism for switching to the unlocked state in which the engagement state of the plurality of engagement parts with respect to the peripheral edge portion of the container is released, and acting on the interlocking mechanism when pressed from above, A first operating portion for bringing the engaging portion into a locked state; and a second operating portion for acting on the interlocking mechanism when pressed from above and bringing the plurality of engaging portions into an unlocked state. It is characterized by having.

  According to such a configuration, each engaging portion can be locked by pressing the first operating portion from above, and each engaging portion is locked by pressing the second operating portion from above. It can be in a released state. As described above, since the operation for switching between the locked state and the unlocked state is both performed by pressing from above, the user can compare with the configuration in which the operation unit arranged close to the lid is operated. By contacting the lid, it is possible to prevent burns and improve safety.

  In addition, since both the first operation unit and the second operation unit are pressed from above, when the lid is attached to the container, the operation unit is located on the front side like an operation unit that can be operated in the radial direction. Even if the lid is not attached so as to be positioned, the user can always visually observe the first operation unit and the second operation unit. Therefore, the work at the time of attaching the lid to the container becomes easier, and the operability can be improved.

  The interlocking mechanism includes a biasing member for biasing the plurality of engagement portions in a direction to separate each other based on pressing of the second operation portion, and the first operation portion. It is preferable that a link member is provided for bringing the plurality of engaging portions into a locked state against each other based on pressing of the biasing member against the biasing force of the biasing member.

  According to such a configuration, when the unlocked state is established, the unlocking state can be achieved by pressing the second operating portion to use the biasing force of the biasing member. In this case, by pressing the first operation portion, the plurality of engaging portions can be brought close to each other against the urging force of the urging member to be locked. As described above, the configuration in which the urging force of the urging member is not used and the locked state is established, so that even if a foreign object is caught in the mechanism, the user can operate the first operation unit until the locked state is completely achieved. Therefore, safety can be further improved.

  The plurality of engaging portions include a first engaging portion and a second engaging portion, and the link member includes a first link arm connected to the first engaging portion, and the first link arm. A second link arm that is rotatably attached via a rotation shaft and connected to the second engagement portion, and the first link arm and the second link arm based on depression of the first operation portion Are positioned in a straight line with each other, and the biasing force of the biasing member acts along the straight line, so that the first link arm and the second link arm do not rotate around the rotation axis. The locked state is maintained, and the first link arm and the second link arm are not in a state of being aligned with each other on the basis of the pressing of the second operation unit, and the biasing force of the biasing member First link It is preferred that over arm and the second link arm is unlocked by rotating each other about said rotary shaft.

  According to such a configuration, the locked state is not achieved unless the first operation unit is pressed until the first link arm and the second link arm are in a state of being aligned with each other, and the locked state is incomplete. In some cases, the first link arm and the second link arm are not positioned in a straight line with each other, and thus are biased to the unlocked state by the biasing member. Therefore, it is easy to understand whether or not the lock state is set, and the safety can be further improved.

  Further, when changing from the locked state to the unlocked state, it is possible to easily enter the unlocked state by using the urging force of the urging member by depressing the second operation portion, thus further improving the operability. Can be improved.

  The pan according to the present invention includes the lid lock mechanism, the pan body as the container, and the pan lid as the lid.

  According to such a structure, the pan which produces the said effect similar to the lid | cover lock mechanism which concerns on this invention can be provided.

It is a top view which shows an example of the pan which concerns on one Embodiment of this invention. It is a top view of a pan, and has shown the state where the 1st operation part and the 2nd operation part were omitted. It is a fragmentary sectional view of a pan lid, and shows the case where each engaging part is in a locked state. It is a fragmentary sectional view of a pan lid, and shows the case where each engaging part is in a lock release state.

  FIG. 1 is a plan view showing an example of a pan 1 according to an embodiment of the present invention. FIG. 2 is a plan view of the pan 1 and shows a state in which the first operation unit 13 and the second operation unit 14 are omitted.

  As shown in FIG. 1, the pan 1 includes a pan body 2 as a container and a pan lid 4 that covers the opening 3 of the pan body 2 from above. The pan 1 in this embodiment is, for example, a pressure cooker, and the opening 3 of the pan body 2 is sealed by the pan lid 4 via a packing (not shown) provided on the peripheral edge of the pan lid 4. Thus, by heating the pan body 2, the pressure inside the pan body 2 can be increased.

  Two engaging portions 11 (a first engaging portion and a second engaging portion) are attached to the peripheral edge portion of the pan lid 4. These engaging portions 11 are formed in an arc shape corresponding to the shape of the peripheral portion of the pan lid 4, and the cross section is formed in a U shape, and the peripheral portion of the pan body 2 and the peripheral portion of the pan lid 4 Can be sandwiched up and down. The two engaging portions 11 are arranged symmetrically with respect to the center portion of the pan lid 4, and each engaging portion 11 is engaged with the peripheral portion of the pan main body 2, whereby the pan lid 4 is replaced with the pan main body 2. Can be attached to.

  Each engaging portion 11 is attached with an arm portion 12 extending in the radial direction D1 from the center portion of the pan lid 4. The arm portions 12 connected to the respective engaging portions 11 are connected to each other at the central portion of the pan lid 4 and arranged in a straight line, and are slidably attached along the straight line. Each arm part 12 is connected via the interlocking mechanism 20, and the two engaging parts 11 attached to each arm part 12 can be interlocked by the interlocking mechanism 20 (FIG. 2). reference).

  Specifically, by sliding each arm portion 12 inward (center side of the pan lid 4) along the radial direction D1, each engaging portion 11 becomes a peripheral portion of the pan body 2 as shown in FIG. The pan lid 4 can be attached to the pan main body 2. On the other hand, the respective engaging portions 11 are engaged with the peripheral portion of the pan body 2 as shown in FIG. 1 by sliding each arm portion 12 outward (peripheral side of the pan lid 4) along the radial direction D1. The pan lid 4 can be removed from the pan body 2 with the unlocked state in which the state is released.

  A central portion of the pan lid 4 is provided with a first operation portion 13 and a second operation portion 14 that can be pressed from above. The first operating portion 13 acts on the interlocking mechanism 20 when pressed from above, and slides each arm portion 12 inward along the radial direction D1 to place each engaging portion 11 in a locked state. It is a lock button. Further, the second operating portion 14 acts on the interlocking mechanism 20 when pressed from above, and slides each arm portion 12 outward along the radial direction D1 to bring each engaging portion 11 into the unlocked state. This is a lock release button.

  Each of the engaging portions 11, the arm portions 12, the first operating portion 13, the second operating portion 14, the interlocking mechanism 20, and the like as described above has a lid locking mechanism 5 for locking the pan lid 4 to the pan body 2. It is composed. According to such a lid lock mechanism 5, each of the engaging portions 11 is placed in the pan regardless of the angle at which the pan lid 4 covers the opening 3 of the pan body 2 with respect to the center. Since the pan lid 4 can be attached by engaging with an arbitrary position on the peripheral edge of the main body 2, the operability is good.

  In the present embodiment, each engaging portion 11 can be locked by pressing the first operating portion 13 from above, and each engaging portion 11 is pressed by pressing the second operating portion 14 from above. The lock can be released. In this way, since the operations for switching between the locked state and the unlocked state are both by pressing from above, compared to the configuration for operating the operation unit arranged close to the pan lid 4, It is possible to prevent the user from being burned by coming into contact with the pan lid 4, and safety can be improved.

  Moreover, since both the 1st operation part 13 and the 2nd operation part 14 are the structures pressed from upper direction, when attaching the pan lid 4 to the pan main body 2, like the operation part which can be operated in radial direction D1. Even if the pan lid 4 is not attached so that the operation unit is positioned on the near side, the user can always visually observe the first operation unit 13 and the second operation unit 14. Therefore, the operation | work at the time of attaching the pan lid 4 to the pan main body 2 becomes easier, and operativity can be improved.

  FIG. 3 is a partial cross-sectional view of the pan lid 4 and shows a case where each engaging portion 11 is in a locked state. FIG. 4 is a partial cross-sectional view of the pan lid 4 and shows a case where each engaging portion 11 is in an unlocked state.

  The interlocking mechanism 20 includes a swing member 21 that is swingably attached to each arm portion 12, a link member 22 that connects these swing members 21, and each arm portion 12 in the radial direction D1. A compression spring 23 is provided as a biasing member that biases the outer side along the outer side.

  The swing member 21, the link member 22, and the compression spring 23 are held by the pan lid 4 via a holding member 24 attached to the upper surface of the pan lid 4. The holding member 24 includes a rectangular bottom plate 241 that is fixed in contact with the top surface of the pan lid 4 and two side plates 242 that protrude upward from opposite edges of the bottom plate 241. It is configured by being integrally formed.

  The two side plates 242 extend in parallel to the direction in which the arm portion 12 extends, and are arranged in parallel to each other with an interval similar to the width of the end portion of the arm portion 12. By arranging the end of each arm portion 12 between these two side plates 242, the holding member 24 guides each arm portion 12 so as to slide along the radial direction D1. It is supposed to function as.

  The swing member 21 is attached to both ends of the end of each arm portion 12 in the width direction D2 (direction perpendicular to the radial direction D1). The two oscillating members 21 attached to the end portions of the arm portions 12 rotate around the same axis with respect to the arm portions 12 around the rotation shaft 211 held by the side plate 242 of the holding member 24. It is attached as possible.

  The two side plates 242 are each formed with a long hole 243 for slidably holding each rotating shaft 211. These long holes 243 extend parallel to the radial direction D1, respectively, and when each engaging portion 11 is in a locked state, as shown in FIG. 3, the inner side of each long hole 243 (on the center side of the pan lid 4). ) At the end of each of the rotating shafts 211, while the engaging portions 11 are in the unlocked state, the outer ends of the long holes 243 (on the peripheral edge side of the pan lid 4) as shown in FIG. Each rotating shaft 211 is located.

  Each swing member 21 has an elongated shape with a bent central portion, and the rotation shaft 211 is attached to one end of each swing member 21. A link member 22 is rotatably attached to the other end portion of each swing member 21 via a rotation shaft 212. The center of each swing member 21 is rotatably held by a side plate 242 of the holding member 24 via a support shaft 213.

  With such a configuration, the end portions of the arm portions 12 approach each other as shown in FIG. 3, and one end portion of the swing member 21 attached to the end portion of each arm portion 12 (end portion on the rotating shaft 211 side). In the locked state in which the two members approach each other, the other end portions (end portions on the rotating shaft 212 side) of the swing members 21 are separated from each other, while the end portions of the arm portions 12 are separated from each other as shown in FIG. In the unlocked state in which one end portions (end portions on the rotating shaft 211 side) of the swinging member 21 attached to the end portion of the arm portion 12 are separated from each other, the other end portions (on the rotating shaft 212 side) of each swinging member 21. (Ends) come close to each other.

  The compression spring 23 is interposed between the swinging members 21 facing in the direction parallel to the radial direction D1. The compression spring 23 abuts between the rotation shaft 211 and the support shaft 213 of each swinging member 21 whose both end portions are opposed to each other, and exerts a biasing force toward the outside (periphery side of the pan lid 4). . Therefore, when the transition from the locked state of FIG. 3 to the unlocked state of FIG. 4 is performed, each swinging member 21 can be swung using the biasing force of the compression spring 23, but the lock of FIG. When shifting from the released state to the locked state of FIG. 3, it is necessary to swing each swing member 21 against the urging force of the compression spring 23.

  The link member 22 constitutes a so-called toggle mechanism, and includes two link arms 221 (a first link arm and a second link arm). These link arms 221 are each formed in a U-shape, and opposing end portions are rotatably attached via a rotation shaft 222, thereby forming a rectangular shape in plan view as shown in FIG. . One link arm 221 is connected to two swinging members 21 attached to the end of one arm portion 12 via a rotating shaft 212, thereby engaging the one arm portion 12. It is connected to the part 11. The other link arm 221 is connected to the two swinging members 21 attached to the end of the other arm portion 12 via the rotation shaft 212, thereby engaging with the other arm portion 12. It is connected to the part 11.

  As shown in FIGS. 3 and 4, the first operation unit 13 and the second operation unit 14 are held by the cover member 16 so as to be slidable in the vertical direction. Both the first operation unit 13 and the second operation unit 14 are urged upward by an urging member (not shown) such as a compression spring. 1 and 2, the cover member 16 is omitted.

  When each engaging portion 11 is changed from the unlocked state to the locked state, the first operating portion 13 is pressed in the state shown in FIG. In the unlocked state, as shown in FIG. 4, the end portions on the rotating shaft 212 side of the swinging member 21 facing in the direction parallel to the radial direction D1 approach each other, so that the two link arms 221 are directed upward. Projecting into a V shape. When the first operating portion 13 is pressed in this state, the connecting portion of the two link arms 221 is pressed downward by the first operating portion 13, and the two link arms 221 are mutually connected as shown in FIG. It will be in the state located on a straight line.

  When the first operation portion 13 is pressed, the swing member 21 swings against the urging force of the compression spring 23 by the operation of the link member 22 as described above, and the two engaging portions 11. Are brought into a locked state by approaching each other. In the locked state as shown in FIG. 3, the two link arms 221 are aligned with each other, so that along the straight line, that is, along the direction in which the two link arms 221 extend respectively, A biasing force acts. Therefore, the two link arms 221 do not rotate with respect to the rotation shaft 222, and the locked state is maintained. However, the straight line includes a substantially straight line state in which the two link arms 221 are slightly deviated from the straight line, and the urging force of the compression spring 23 is slightly deviated from the direction in which the two link arms 221 extend. The structure which acts on a direction may be sufficient.

  When each engaging portion 11 is changed from the locked state to the unlocked state, the second operating portion 14 is pressed in the state shown in FIG. In the locked state, as shown in FIG. 3, the two link arms 221 are positioned on a straight line, and in this state, when the second operation unit 14 is pressed, the lower end of the second operation unit 14 However, the pressing surface 223 provided on one link arm 221 is pressed downward. As a result, the link arm 221 provided with the pressing surface 223 rotates around the rotation shaft 212, and the two link arms 221 are not in a state of being aligned with each other. Therefore, the two link arms 221 are rotated around the rotation shaft 222 by the urging force of the compression spring 23 to form a V shape as shown in FIG. 4, and the two engaging portions 11 are separated from each other to release the lock. It becomes a state.

  When the pressure in the pan body 2 is high in the locked state of FIG. 3 and the internal pressure detection valve 6 attached to the pan lid 4 so as to be slidable in the vertical direction is lifted upward, the second operation unit 14 Even if it is intended to release the locked state by pressing, the locked state is released in the high pressure state by the rotation shaft 211 that tries to slide in the long hole 243 being caught by the internal pressure detection valve 6. Can not be.

  In the present embodiment, when the unlocked state is set, by pressing the second operation unit 14, the unlocked state can be set using the urging force of the compression spring 23, while the locked state is set. At this time, by pressing the first operating portion 13, the two engaging portions 11 can be brought close to each other against the urging force of the compression spring 23 to be in a locked state. Thus, by the configuration in which the urging force of the compression spring 23 is not used and the locked state is set, even when a foreign object is caught in the mechanism, the user can operate the first operation unit until the locked state is completely achieved. Therefore, safety can be further improved.

  Further, in the present embodiment, the locked state is not achieved unless the first operation unit 13 is pressed until the two link arms 221 are positioned in a straight line with each other. Since the two link arms 221 are not positioned in a straight line with each other, they are biased to the unlocked state by the compression spring 23. Therefore, it is easy to understand whether or not the lock state is set, and the safety can be further improved.

  Furthermore, when changing from the locked state to the unlocked state, by pressing the second operating portion 14, the unlocked state can be easily made using the urging force of the compression spring 23. This can be further improved.

  In the above embodiment, the case where the number of the engaging portions 11 is two has been described. However, the number of the engaging portions 11 is not limited to two, and three or more may be provided. In this case, the arm portion 12 attached to each engagement portion 11 may extend radially along the radial direction D1 to be radially arranged from the center portion of the pan lid 4 to the outside. .

  Moreover, the lid locking mechanism according to the present invention is not limited to the pressure cooker but can be applied to other pans, and can also be applied as a mechanism for locking the lid to a container other than the pan.

DESCRIPTION OF SYMBOLS 1 Pan 2 Pan body 3 Opening part 4 Pan lid 5 Lid lock mechanism 11 Engagement part 12 Arm part 13 1st operation part 14 2nd operation part 20 Interlocking mechanism 21 Oscillation member 22 Link member 23 Compression spring 24 Holding member 211 Rotation Shaft 212 Rotating shaft 213 Support shaft 221 Link arm 222 Rotating shaft

Claims (4)

A lid locking mechanism for locking a lid that covers the opening of the container from above to the container,
A plurality of engaging portions for attaching the lid to the container by being provided on the peripheral edge of the lid and being engaged with the peripheral edge of the container;
The locked state in which the plurality of engaging portions engage with the peripheral edge portion of the container and the engagement state of the plurality of engaging portions with respect to the peripheral edge portion of the container are released by interlocking the plurality of engaging portions. An interlocking mechanism for switching to the unlocked state,
A first operating part for acting on the interlocking mechanism when pressed from above, and for locking the plurality of engaging parts;
A lid locking mechanism, comprising: a second operating portion that acts on the interlocking mechanism when pressed from above and puts the plurality of engaging portions into an unlocked state. The interlocking mechanism is
An urging member for energizing the plurality of engaging portions in a direction to separate them from each other based on pressing of the second operation portion; and
And a link member for bringing the plurality of engaging portions into a locked state against each other against a biasing force of the biasing member based on pressing of the first operation portion. The lid locking mechanism according to claim 1. The plurality of engaging portions include a first engaging portion and a second engaging portion,
The link member includes a first link arm coupled to the first engagement portion, a second link arm rotatably connected to the first link arm via a rotation shaft, and a second link arm coupled to the second engagement portion. Including a link arm,
Based on the pressing of the first operation unit, the first link arm and the second link arm are positioned on a straight line, and the biasing force of the biasing member acts along the straight line, The first link arm and the second link arm are not rotated with respect to each other about the rotation axis, and the locked state is maintained.
When the first link arm and the second link arm are not in a state of being aligned with each other based on the pressing of the second operation unit, the first link arm and the second link arm are biased by the biasing force of the biasing member. 3. The lid lock mechanism according to claim 2, wherein the link arms rotate with respect to each other about the rotation shaft to be unlocked. The lid lock mechanism according to any one of claims 1 to 3,
A pan body as the container;
A pan comprising a pan lid as the lid.

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