JP4964749B2 - Air pot - Google Patents

Description

  According to the present invention, a bellows is contracted by pushing a push button, air is discharged into the container to pressurize the inside of the container, and the air pump that sends the liquid in the container to the outside through the pumping pipe by the pressurization is covered. It relates to an air pot built into the body.

  This type of air pot has a lid that opens and closes the opening of the container. The lid is divided into an upper lid and a lower lid in order to incorporate the air pump. In general, the upper lid constitutes an outer shell circumferential side portion and an upper end portion of the lid, and the lower lid is combined with the upper lid inside the outer shell circumferential side portion of the upper lid. This is to hide the joint between the lower lid and the upper lid from the outside. The pressing surface of the push button is exposed on the upper surface of the upper lid. The air pump contracts the bellows by pressing the push button, discharges air from the inside of the bellows into the container, pressurizes the inside of the container, and pressurizes the liquid inside the container through the pumping pipe to the outside of the container. It is a sending mechanism. The lid is also incorporated with a lock device for preventing the push button from being pushed in unexpectedly.

Conventionally, as shown in FIG. 8, the lock device is configured on a lower lid 81, and includes a push button 82, an engagement piece 83 of a bellows upper receiving member of a bellows set, and a detent wall 84 of the lower lid 81. A lock ring 85 that can be rotated into a lock position that prevents the push button 82 from being pushed and a lock release position that allows the push button 82 to be pushed is used (Patent Document 1).
The bellows upper receiving member is a member to which the upper end of the bellows is in close contact, and the engagement piece 83 is provided to protrude to the outer diameter side at a part of the outer periphery of the bellows upper receiving member. The push button 82 is covered so as to enclose the bellows upper receiving member, and a notch portion formed from the lower end on a part of the peripheral side of the push button 82 is fitted to the base of the engaging piece 83 of the bellows upper receiving member. Yes. Thereby, the push button 82 and the bellows upper receiving member are connected so as to move integrally with respect to the rotation direction of the lock ring 85.
The lock ring 85 is disposed outside the push button 82 and is placed on the lower lid 81. The engagement piece 83 of the bellows upper receiving member passes through the restriction hole 86 in the rotation direction of the lock ring 85. The restriction hole 86 includes a lock position area 86 a that prevents the engagement piece 83 from descending and a lock release area 86 b that allows the engagement piece 83 to descend. The lock ring 85 slides on the upper surface of the lower lid 81 during a rotation operation. At this time, the lock ring 85 is guided in the radial direction (ie, centering of the rotating shaft) by sliding between the cylindrical wall 87 formed on the upper surface of the lower lid 81 and the outer periphery of the lock ring 85. The upward movement of the lock ring 85 is restricted by the lower end of the upper lid 88.
On the upper surface of the lower lid 81, a rotation prevention wall 84 is provided so as to be positioned on both sides of a path in which the engagement piece 83 moves up and down by contraction of the bellows accompanying the operation of the push button 82. The push button 82 and the bellows set are not dragged and rotated by the rotation of the lock ring 85 due to the engagement of the engagement piece 83 of the bellows upper receiving member and the anti-rotation wall 84 which is a fixing portion in the rotation direction. So as to prevent rotation.
The lock device described above can move the engagement piece 83 relatively between the lock position area 86a and the lock release area 86b simply by performing a rotation operation using the knob of the lock ring 85. Excellent in properties.

JP-A-10-179422

  However, the lower lid 81 is made of a synthetic resin plate-like integrally molded product in order to reduce the size of the lid in the vertical direction and to suppress the number of parts. . The lock device shown in FIG. 8 has a problem that, since the lock ring 85 slides on the upper surface of the lower lid 81, if the warp occurs, the rotation operation of the lock ring 85 becomes heavy, resulting in an operation failure.

  In view of the above circumstances, an object of the present invention is to make it difficult to influence the rotational operation of a lock ring for locking and unlocking a push button due to temporal deformation of a lid.

The present invention for solving the above-mentioned problems is incorporated into a lid body that opens and closes an opening of a container, a push button exposed on the upper surface of the lid body, an air pump incorporated in the lid body, and the push button. A lock position that prevents the push button from being pushed in and a lock ring that is rotated to a lock release position that allows the push button to be pushed, and the air pump contracts the bellows by pushing the push button, It is assumed that the air pot has a mechanism in which air is discharged from the inside of the container to pressurize the container, and the liquid in the container is sent out of the container through a pumping pipe by the pressurization.
This is because the pump operation is performed by pushing the push button as described above, and the push button can be locked and unlocked only by rotating the lock ring.

In the present invention, a ring receiver is formed on the upper lid of the lid body, on which the outer shell peripheral side portion is formed, extending from the inner side of the outer shell peripheral side portion, and the lock ring is placed on the ring receiver for rotation. It is characterized by the configuration supported by
According to the configuration of the present invention, the upper lid in which the outer shell circumferential side portion of the lid is formed is excellent in rigidity against vertical warping deformation by the outer shell circumferential side portion over the entire circumference. Since the lock ring is mounted on such a ring receiver on the upper lid side, the influence of the warp of the lower lid can be reduced to a level that can be ignored. A ring receiver is formed by extending from the inner side of the outer shell peripheral side, which is a highly rigid part, and a lock ring is placed on the ring receiver and supported rotatably. It is difficult to affect the ring. Therefore, it is difficult for the rotation operation of the lock ring to be affected by the temporal deformation of the lid.

  The upper lid may be an integrally molded product. In this case, the lock ring is placed on a ring receiver extended from the inside of the outer peripheral side portion from below the upper lid. For this purpose, the ring receiver is partially cut off at two positions 180 degrees in the circumferential direction of the outer peripheral side of the outer shell, and the lock ring is passed through the two cut parts in a vertical posture with the outer circumference facing up and down. It is conceivable that the outer periphery of the lock ring is laid down horizontally after it has been moved, but a posture change space for laying down the lock ring and the split ring piece is required in the upper lid, and it cannot be adopted unless the lid body is bulky.

  The upper cover is formed as a combined body of a cover ring member in which the outer peripheral portion of the outer shell is formed and the ring receiver is exposed on an upper surface, and an upper cover member in which a button lifting hole for exposing the push button is opened up and down. In this case, the lock ring can be easily placed on the ring receiver.

Here, the ring receiver is formed of a lateral wall that receives the lock ring from below, a connecting wall that connects the lateral wall and the outer peripheral side portion of the ring, and a guide wall that protrudes upward from the lateral wall. If the lock ring is guided in the radial direction by sliding the guide wall of the receiver and the inner periphery of the lock ring, it is not necessary to slide the outer periphery of the lock ring mounted on the ring receiver. A radial gap can be set between the outer periphery of the lock ring and the connection wall, and the radial gap can be opened upward. A part of the lower surface side of the upper cover member can be inserted into the radial gap in the radial gap.
If the connection wall and the upper cover member are vertically engaged by the insertion, the upper cover member and the lid ring member can be coupled or strengthened. In these couplings and the like, a vertical tensile stress is generated in the vicinity of the engaging portion of the connection wall.
If the lateral wall of the ring receiver is cut off below the engaging portion, the influence of the tensile stress can be prevented from reaching the lateral wall, and deformation of the lateral wall can be prevented.

An engagement piece projecting to the outer diameter side is provided on a part of the outer periphery of the bellows upper receiving member to which the upper end of the bellows is in close contact, and the fixing part in the lid body is positioned on both sides of the lifting path of the engagement piece. If a detent wall is provided on the bellows, the bellows upper receiving member can be detented.
As the fixing portion, a lower lid, an upper lid, and other built-in fixing members can be used.
When the push button is placed on the bellows upper receiving member and the bellows upper receiving member and the push button are engaged with each other on the inner diameter side of the engagement piece to prevent the push button from rotating, the push button and the lock ring The push button can be reduced in size while preventing the relative rotational position shift. That is, the push button is placed on the bellows upper receiving member and engaged with the inner side of the engaging piece, so that the outer periphery of the push button is prevented from rotating using the engaging piece that is a part of the outer periphery of the bellows upper receiving member. It can be made smaller than the case.

  As described above, the air pot according to the present invention can disregard the influence of warping deformation of the upper and lower sides of the upper lid by placing the lock ring on the ring receiver on the upper lid side. Since the ring receiver is formed by extending from the above, it is possible to make it difficult to affect the rotation operation of the lock ring for locking and unlocking the push button due to the temporal deformation of the lid.

Hereinafter, an air pot according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, in this air pot, a lid 1 is freely opened and closed with respect to a container by a hinge 2. As the container, a vacuum double container composed of an inner container 3 and an outer container 4 and a shoulder member 5 attached thereto is used. In addition, it is not necessary to limit to an insulated container. The lid 1 is provided with a lid opening button 6 for releasing the opening / closing lock. The shoulder member 5 is provided with a hinge receiver 7 for swingably supporting the hinge 2 of the lid 1.

The lid 1 is divided into an upper lid 11 and a lower lid 12 in order to incorporate an air pump or the like.
The upper lid 11 constitutes an outer shell peripheral side portion and an upper end portion of the lid body 1.
The lower lid 12 is configured to be combined with the upper lid 11 inside the outer shell circumferential side portion of the upper lid 11. The lower lid 12 is a synthetic resin integral injection molded product. This is for a single component.

  As shown in FIGS. 1 and 2, the air pump includes a push button 13 incorporated in the lid body 1, a pressing member 14 constituting an intake valve, a bellows upper receiving member 15, a bellows 16, and a bellows lower receiving. It consists of member 17 grade | etc.,. The pressing surface of the push button 13 is exposed on the upper surface of the upper lid 11. The air pump pushes the push button 13 against the urging force of the spring 18 to contract the bellows 16 through the pressing member 14 and the bellows upper receiving member 15, and the air in the bellows 16 is discharged through the discharge pipe 19. Discharge into the inner container 3. The inside of the inner container 3 is pressurized by this air discharge, and the liquid in the inner container 3 is sent out of the container through the pumping pipe 20 and the delivery pipe 21 inserted into the inner container 3 by this pressurization. It has become.

  An engagement piece 15 a protruding to the outer diameter side is provided on a part of the outer periphery of the bellows upper receiving member 15. As a fixing portion in the lid body 1, a detent wall 12 a is integrally provided on the upper surface of the lower lid 12 so as to be positioned on both sides of the lifting path of the engagement piece 15 a. For this reason, the bellows upper receiving member 15 is prevented from rotating about the vertical axis by the engaging piece 15a and the non-rotating wall 12a regardless of the elevation position.

  The push button 13 is placed on the bellows upper receiving member 15. As shown in FIG. 3, notches 13 a, 13 a, and 13 a are formed on a part of the peripheral side of the push button 13 from the lower end toward the upper side. On the other hand, as shown in FIG. 2, an annular portion 15b on which the peripheral side of the push button 13 is fitted protrudes upward at the center of the upper surface of the bellows upper receiving member 15, and the push button 13 is placed on the annular portion 15b so The receiving member 15 is positioned in the radial direction and the downward direction. On the outer periphery of the annular portion 15b, a rib 15c located on the inner side of the engagement piece 15a protrudes toward the outer diameter side in a circumferential arrangement corresponding to the notches 13a, 13a, 13a. The notches 13a are fitted into the ribs 15c, and the push button 13 and the bellows upper receiving member are connected in the rotational direction around the vertical axis by these engagements. For this reason, the outer periphery of the push button 13 is smaller than the case where the rotation is stopped using the engaging piece 15a of the bellows upper receiving member 15.

  As shown in FIGS. 1, 4, and 5, on the outer side of the push button 13, there is a lock ring 31 that is rotated to a lock position where the push button 13 is prevented from being pushed and a lock release position where the push button 13 is allowed to be pushed. It has been incorporated. The lock ring 31 is placed on a ring receiver 32 formed by extending from the inside of the outer shell peripheral side portion of the upper lid 11.

The lock ring 31 placed on the ring receiver 32 is supported coaxially with the push button 13 and rotatable about the vertical axis. By grasping the operation knob 31a of the lock ring 31 exposed on the upper surface of the lid 1, the lock ring 31 can be rotated around the vertical axis between the lock position and the lock release position.
As shown in FIG. 6A, the lock position is determined by the lock pieces 31b, 31b, 31b (see also FIGS. 5 and 7) protruding from the inner periphery of the lock ring 31 on the push button 13. This is a position below the engaging portion 13b.
As shown in FIG. 6 (b), the unlocking position is located below the escape grooves 13c, 13c, 13c on the outer periphery of the push button 13 to which the lock pieces 31b, 31b, 31b correspond, and below the engaging portion 13b. The position is out of the range. For this reason, when the push button 13 is pushed, each lock piece 31b can be pushed to the bottom dead center of the push button 13 through the corresponding escape groove 13c. When the push button 13 is raised and lowered, the push button 13 is guided in the vertical direction by the inner surfaces of the lock pieces 31b and the escape grooves 13c.

  More specifically, as shown in FIGS. 1, 4, and 5, the upper lid 11 includes a lid ring member 33 formed with the outer peripheral side portion of the lid body 1, and a button lift that exposes the push button 13. The hole 34 is a combined body of the upper cover member 35 opened up and down. The lid ring member 33 and the upper cover member 35 are each an integrally injection-molded product of synthetic resin. This is for a single component.

  The ring receiver 32 is formed of a lateral wall 32a that receives the lock ring 31 from below, a connection wall 32b that connects the lateral wall 32a and the outer peripheral side portion of the lid 1, and a guide wall 32c that protrudes upward from the lateral wall 32a. Has been. The lid ring member 33 is formed such that the ring receiver 32 is exposed on the upper surface. For this reason, the lock ring 31 can be incorporated into the inside of the lid ring member 33 from above and can be easily placed on the lateral wall 32 a of the ring receiver 32.

The lock ring 31 placed on the ring receiver 32 is guided in the radial direction by sliding of the guide wall 32 c and the inner periphery of the lock ring 31. For this reason, a radial clearance is set between the outer periphery of the lock ring 31 placed on the ring receiver 32 and the connection wall 32b. The lid ring member 33 is formed such that its radial gap is opened upward.
An engagement wall 36 to be inserted into the radial gap is formed on the lower side of the upper cover member 35, and engagement holes 37, 37. .. Are engaged vertically with claw-like engaging portions 38 formed on the connection wall 32 b of the ring receiver 32.
By engaging the engagement holes 37 and the engagement portions 38 at equal intervals in the circumferential direction and at a plurality of locations, the lid ring member 33 and the upper cover member 35 are coupled in a balanced manner in the vertical direction, and the upper lid 11 is formed. The

  In the above coupling, a tensile stress in the vertical direction is generated in the vicinity of each engaging portion 38 of the connection wall 32 b, but the lateral wall 32 a of the ring receiver 32 is disconnected below each engaging portion 38. For this reason, it is avoided that the influence of the said tensile stress reaches the horizontal wall 32a, and a deformation | transformation of the horizontal wall 32a is prevented.

  The above engagement structure is not a claw and a hole, but may be a configuration that can be engaged by pushing from above the upper cover member 35, such as a claw and claw, a claw and a stepped portion, etc. The number and arrangement of the engagement points can be appropriately changed as long as a desired connection is obtained, and a fixing portion can be added to other points.

An outline of incorporation of the lock ring 31 and the like will be described (refer to FIGS. 1, 2, and 5 as appropriate). The upper cover member 35 is separated, and the lid ring member 33 and the lower lid 12 are joined, and the bellows upper receiving member 15, the bellows 16, the bellows lower receiving member 17 and the like are assembled on the lower lid 12.
The push button 13 is passed through the inside of the lock ring 31 from below, and a set in which the stoppers 13d, 13d, 13d protruding from the outer periphery of the push button 13 are hooked up and down on the lower end of the lock ring 31 is assembled. Each retaining member 13d is provided so as to be hooked on the lock ring 31 when the lock ring 31 is in the locked position or the unlocked position.
The set is put in from the upper side of the lid ring member 33, the lock ring 31 is placed on the ring receiver 32, and the push button 13 is fitted into the annular portion 15 b of the bellows upper receiving member 15.
The upper cover member 35 is approached from above the lid ring member 33, the engagement wall 36 is inserted between the outer periphery of the lock ring 31 and the connection wall 32 b of the ring receiver 32, and the upper cover member 35 is closed by the engagement wall 36. Positioning in the radial direction with respect to the member 33, the respective engagement holes 37 are pushed into the engagement portions 38 and engaged vertically. Thereby, the upper lid 11 is formed, and the upward movement of the lock ring 31 is restricted by the lower end of the upper cover member 35. Further, the lower end of the lock ring 31 and the stoppers 13d, 13d, 13d of the push button 13 are hooked up and down, and the push button 13 is prevented from coming off against the urging force of the spring 18.

  The upper cover member 35 has an operation hole for moving the operation knob 31 a of the lock ring 31. Further, the upper cover member 35 covers the ring receiver 32 and the lock ring 31 so that the ring cover 32 and the lock ring 31 are not seen from between the push buttons 13 in a state where the upper lid 11 is formed.

  This embodiment has the above-described configuration, and the upper lid 11 formed by a combination of the lid ring member 33 and the upper cover member 35 formed with the outer shell circumferential side portion of the lid 1 has an outer shell circumference extending over the entire circumference. Excellent rigidity against warping deformation in the vertical direction by the side part. Since the lock ring 31 is placed on the ring receiver 32 of the lid ring member 33 on the upper lid 11 side, the influence of the warp of the lower lid 12 can be reduced to a level that can be ignored. Since the ring receiver 32 is formed by extending from the inner side of the outer shell peripheral side portion, which is the high rigidity portion, and the lock ring is mounted on the ring receiver 32 and supported rotatably, the vertical direction due to the temporal deformation of the lid 1 The warp deformation of the ring holder 32 is difficult. Accordingly, the rotation operation of the lock ring 31 is hardly affected by the temporal deformation of the lid 1.

The principal part vertical side view of the air pot which concerns on embodiment 1 is an exploded perspective view of the air pump of the lid of FIG. The perspective view which showed the push button of FIG. 1 from diagonally downward The left half is a front view of the lid of FIG. 1, and the right half is a longitudinal front view of the lid of FIG. 1 is an exploded perspective view of the upper lid of the lid of FIG. 1 is a partially enlarged bottom view showing the state where the lock ring of FIG. 1 is in the locked position from below the lock ring, and b is the state where the lock ring of FIG. 1 is in the unlocked position from below the lock ring. Partial enlarged bottom view The perspective view which showed the lock ring of FIG. 1 from diagonally downward The perspective view which shows the whole structure of the lock ring of a prior art example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover body 2 Hinge 3 Inner container 4 Outer container 5 Shoulder member 6 Cover body release button 7 Hinge receiver 11 Upper cover 12 Lower cover 12a Rotation prevention wall 13 Push button 13a Notch part 13b Engagement part 13c Escape groove 13d Detent 14 Press Member 15 Bellows upper receiving member 15a Engagement piece 15b Annular portion 15c Rib 16 Bellows 17 Bellows lower receiving member 18 Spring 19 Discharge pipe 20 Pumping pipe 21 Delivery pipe 31 Lock ring 31a Operation knob 31b Lock piece 32 Ring receiver 32a Horizontal wall 32b Connection wall 32c Guide wall 33 Lid ring member 34 Button lift hole 35 Upper cover member 36 Engagement wall 37 Engagement hole 38 Engagement part

Claims (3)

A lid that opens and closes the opening of the container, a push button that is exposed on the upper surface of the lid, an air pump that is incorporated in the lid, and an outside of the push button that prevents the push button from being pushed in. And a lock ring that is rotated to a lock position and a lock release position where pushing is permitted, and the air pump contracts the bellows by pressing the push button, and discharges air from the bellows into the container. In the air pot that pressurizes the inside of the container and sends out the liquid in the container to the outside of the container through the pumping pipe by the pressurization, the upper lid on which the outer peripheral side portion of the lid is formed is Extending from the inner side of the outer shell peripheral side to form a ring receiver, the lock ring is placed on this ring receiver and supported rotatably ,
The upper lid is a combined body of a lid ring member formed on the outer peripheral side of the outer shell and the ring receiver exposed on the upper surface, and an upper cover member in which a button lifting hole for exposing the push button is opened up and down . An air pot characterized by. The ring receiver is formed of a lateral wall that receives the lock ring from below, a connection wall that connects the lateral wall and the outer circumferential side of the outer shell, and a guide wall that protrudes upward from the lateral wall. The lock ring is guided in the radial direction by sliding the guide wall and the inner periphery of the lock ring, and the radial gap between the outer periphery of the lock ring placed on the ring receiver and the connection wall is opened upward. the connecting wall and engaged with said upper cover member up and down, Eapotto of claim 1, wherein were severed transverse wall receiving the ring below the engagement portion. An engagement piece projecting to the outer diameter side is provided on a part of the outer periphery of the bellows upper receiving member to which the upper end of the bellows is in close contact, and the fixing part in the lid body is positioned on both sides of the lifting path of the engagement piece. The push button is placed on the bellows upper receiving member, and the push button is prevented from rotating by engaging the bellows upper receiving member and the push button on the inner diameter side of the engagement piece. The air pot according to claim 1 or 2 .

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