JP5488630B2 - Open bottle - Google Patents

Description

  The present invention relates to a single-open bottle provided with a single-open lid that opens and closes around one side of the upper end of the bottle main body, and more specifically, a bottle main body having a drinking mouth that can be directly drinked at the upper end, and an upper end of the bottle main body. Covering the upper end of the bottle body around the hinge connection part on one side, closing the drinking mouth, and opening and closing the single-opening lid, and locking the single-opening lid between the bottle body and closed, Further, the bottle is a single-open bottle provided with a lock mechanism for releasing the lock.

  Such a single-open bottle is already known (for example, refer to Patent Documents 1 and 2), and when the bottle main body is held in one hand and the single-open lid is opened, it can be directly taken from the drinking mouth. However, in order to prevent inadvertent opening of the lid, the single-opening lid is locked in the closed position by the lock mechanism, and when the lock is released with the finger of one hand, the single-opening lid opens automatically by urging. Has been. A movable part such as a lever member in a lock mechanism for locking and unlocking is provided on the bottle body side as disclosed in Patent Documents 1 and 2, and is engaged on the side of the one-sided lid. It is designed to be locked and unlocked by engaging and disengaging with the part.

JP 2006-158729 A JP 2006-160278 A

  By the way, in many cases, such single-open bottles are used with the metal vacuum double container exposed as shown in Patent Documents 1 and 2, and take advantage of its high heat insulation, beauty, robustness and slimness. ing. As a result, the movable part of the lock mechanism provided on the bottle main body side is supported exclusively using the resin member constituting the shoulder of the bottle main body and the stopper attached to the mouth of the metal vacuum double container.

  However, the exposed height of the resin member attached to the upper end of the metal vacuum double container can be designed freely, but the depth dimension in the radial direction around the metal vacuum double container is to ensure slimness. Except for the narrow mouth part of the metal vacuum double container, it cannot be taken very much. Therefore, if the movable part of the lock mechanism is provided with a sufficient vertical dimension, it can be provided so as to protrude from the side peripheral surface of the resin member as disclosed in Patent Document 1, but the protrusion of the movable member Since it is easy to receive external force, it is necessary to protect it by providing a protective wall around it as disclosed in Patent Document 1, and the periphery of the lock mechanism portion becomes bulky. In addition, because of this partial bulking, it becomes a catching part at the time of cleaning and wiping work, so that workability is deteriorated. On the other hand, as disclosed in FIG. 1 of Patent Document 2, around the narrow mouth portion of a metal vacuum double container that is easy to take a depth, or as disclosed in FIG. It is not necessary to project from the side peripheral surface by providing it in the upper part of the heavy container with the mouth part removed. However, as shown in each case, the vertical dimension of the movable part in the lock mechanism is limited to a small size. It becomes difficult to operate.

  In view of this, the present inventor obtained a relatively large dead space between the mouth of the bottle and the mouth of the bottle with the upper end of the bottle body so as to cover and close the mouth of the bottle with the upper end of the bottle body. Developed a technology that allows the movable part of the lock mechanism to be installed without size restrictions.

  Based on such development, an object of the present invention is to provide a single-open bottle that does not protrude from the outer surface of the single-open lid and that is easy to operate.

In order to solve the above problems, the single-open bottle of the present invention has a bottle body having a drinking mouth that can be directly taken at the upper end portion, and a hinge connecting portion on one side of the upper end portion of the bottle body. A single-open bottle that has a single-open lid that opens and closes and closes and opens the drinking mouth, and a lock mechanism that locks the single-open lid between the bottle body in a closed state and releases the lock. The locking mechanism is satisfied that the engaging portion which is the locking mechanism fixing portion provided on the bottle body side and the front surface and the upper surface and the outer surface of the single-open lid are in a normal state. A lock that is provided and is engaged and locked with a retraction operation from the engagement portion when the single-opening lid is closed, and the lock is released by a temporary retraction operation from the outer surface. It consists of a lock member that is a movable part of the mechanism. Safety stopper, and the opening piece of the locking member provided on the outer surface flush with the upper surface of the lid, to move to the operation blocking position to prevent the unlocking of the locking member and the operation inhibition releasing position for releasing the blocking It is provided with.

According to the above configuration, the single-opening lid closes the drinking port for direct drinking together with the upper end of the bottle main body around the hinge connecting part to the upper end one side of the bottle main body, and prevents the outflow of the content liquid. Moreover, it opens so that the upper end of a bottle main body and a drinking mouth may be opened to the hinge connection part side so that it can drink directly from a drinking mouth. When this single-opening lid is closed between the bottle body and the single-opening lid, it is engaged with the engaging portion on the bottle body side with a temporary retracting operation and locked in the closed state. in the lock mechanism to unlock undergoing evacuation operation, the lock, the lock member is a movable portion for unlocking becomes from front and top and outer surfaces between the single swing lid is flush with the normal Is provided on the side of the single-opening lid, and is engaged with and disengaged from the engaging part as a fixing part in the locking mechanism on the bottle body side, and the single-opening lid is locked in the closed state, and the lock is released. It is possible to obtain a sufficient depth and vertical space dead space between the single-open lid and the mouthpiece so that the single-open lid and the outer surface are flush with each other, and sufficient vertical dimensions are provided. It is provided. Also, depending on whether the safety stopper is moved to the operation blocking position or the operation blocking release position on the outer surface that is flush with the top surface of the single-open lid of the lock member, the lock release operation by the lock release operation member is blocked and is not effective. It is possible to prevent a prepared operation from being performed or to release the lock to the closed position of the one-sided lid by performing a lock release operation.

  Further features of the present invention will become apparent from the following specific description and drawings. Each feature of the present invention can be used alone or in combination with various combinations.

According to the single-open bottle of the present invention, the drinking mouth for direct drinking is covered and closed together with the upper end of the bottle body, and the single-open lid that opens one side so as to open them is locked in the closed state. In the lock mechanism for releasing the lock, the lock member, which is a movable part, is provided on the side of the single-opening lid, satisfying that the front surface of the single-opening lid and the upper surface and the outer surface are in a normal state, Can be locked and unlocked by engaging / disengaging with the engaging part on the bottle body side, and using the dead space of sufficient depth and vertical range obtained between the single-opening lid and the drinking mouth, the single-opening lid The outer surfaces are flush with each other so that they do not interfere with the cleaning and wiping work, and are simple and clean without being bulky. With vertical dimensions It can be assumed that easy to create. In addition, the safety stopper is inadvertently prevented from being unlocked by the unlocking operation member only by a selective movement operation between two positions on the outer surface that is flush with the upper surface of the single-open lid of the locking member. Unlocking operation can be performed as necessary while ensuring safety for operation.

It is sectional drawing which shows the single bottle of embodiment of this invention. It is the side view of the same piece opening bottle, and a top view except a part. It is a top view of the bottle main body of the piece opening bottle. It is sectional drawing which shows the relationship between the stopper of the same open bottle, and the opening part of a metal vacuum double container. It is sectional drawing which isolate | separates the inner cylinder with the drinking mouth in an inside stopper, and shows the stopper and single opening lid of the same opening bottle. It is a top view of the outer cap of the single-open bottle, a front view, a side view, and a plan view of the inner cylinder of the inner cap. It is a perspective view which shows the relationship between the stopper of the same single-open bottle, and the single-open lid | cover of an open state. It is the perspective view which removed the inner cylinder of the inner stopper from the stopper body of the state which turned upside down the relationship between the stopper body of the single opening bottle, and the open single-sided lid. It is a perspective view which shows the separated bottle which removed the unlocking operation member in the locking mechanism from the engagement / disengagement member, and the single opening lid and locking mechanism of the single opening bottle.

  Hereinafter, the single-open bottle of the present invention will be described in detail based on the embodiment shown in FIGS.

  As shown in FIG. 1, the single bottle according to the present embodiment includes a vacuum double container 1 having a vacuum heat insulating space 2 between a stainless inner wall and an outer wall, and an outer wall of a mouth portion 1a of the vacuum double container 1. A bottle body 20 is formed by a synthetic resin plug body 5 that has a female screw threadedly engaged with the male screw 3 formed on and attached to the vacuum double container 1 via a seal packing 9. The bottle main body 20 has a drinking portion for direct drinking that is provided on the stopper body 5 so as to cover the upper end portion of the bottle main body 20 around the hinge connecting portion 10 by the rotating shaft 6 on one side of the upper end portion, specifically on the back side. A single-opening lid 7 that opens and closes the opening 14 is provided. However, the bottle main body 20 can be freely designed such as the presence or absence of heat insulation, metal, non-metal, and the structure of the drinking mouth 14, and the specific structure is not particularly limited. Further, the material of the single lid 7 is not particularly limited. Between the single-opening lid 7 and the bottle body 20, there is provided a lock mechanism 8 that locks the single-opening lid 7 in a closed state and releases the lock.

  The vacuum double container 1 in the illustrated example has a barrel portion 1b that is slim enough to be held by one hand, and the upper portion of the barrel portion 1b is formed to have substantially the same diameter as the plug body 5 attached to the mouth portion 1a. Has been. Holding the body 1b and the plug 5 of the vacuum double container 1 with one hand, the operation of the lock mechanism 8 with the finger of the hand held by one hand, the opening operation of the single opening lid 7 accompanying this, The shape is such that a direct drinking operation by the drinking mouth 14 is easily performed after the lid 7 is opened. However, the single-open lid 7 in the illustrated example is biased in the opening direction by a spring 131 mounted around the rotation shaft 6. Accordingly, the locking mechanism 8 of the single-open lid 7 is locked to the closed position against the bias of the spring 131. When this lock is released, the single-open lid 7 is automatically set by the bias of the spring 131. be opened. Such urging in the opening direction can be replaced by an elastic body provided around the drinking mouth 14 of the bottle body 20 or an elastic seal packing 16 for sealing the drinking mouth 14 provided on the one-sided lid 7.

  The plug body 5 includes a substantially cylindrical outer plug 51 that is screwed into the male screw 3 of the mouth portion 1 a of the vacuum double container 1 and covers the mouth portion 1 a, and a mouth that is fitted inside the outer tube portion 51. An inside plug 52 that enters the inside of the portion 1a and presses the seal packing 16 against the stepped portion of the mouth portion 1a to seal the vacuum double container 1 is formed. It is provided so as to communicate with the sealed area of the heavy container 1. The drinking mouth 14 is located on the opposite side of the top surface of the inner plug 52 from the hinge connecting portion 10, specifically, on the front side, and the one-sided lid 7 opens around the hinge connecting portion 10 to the rear side. When the bottle main body 20 is tilted forward in a state where the bottle body 20 is tilted and then tilted, it is easy to put a mouth without disturbing the single-open lid 7 and to make it easy to drink directly.

  In particular, the locking mechanism 8 is normally provided with an engaging portion 31 that is a locking mechanism fixing portion provided on the bottle body 20 side and the outer surface of the single-opening lid being flush with each other, and the single-opening lid is closed. A lock member that is a lock mechanism movable portion that engages and locks the engagement portion with a retraction operation from the engagement portion when released, and releases the lock by a temporary retraction operation from the outer surface 32. Thus, the drinking port 14 for direct drinking is covered with the upper end portion of the bottle body 20 around the hinge connecting portion 10 to the upper end portion one side of the bottle body 20 to prevent the outflow of the content liquid. The lock member 8 is located between the bottle body 20 and the single-sided lid 7 that opens to the hinge connecting part 10 side so as to open the upper end 20 and the drinking mouth 14 so that the drinking mouth 14 can directly drink. When the single-open lid 7 is closed, the lock member 32 is engaged with the engagement portion 31 on the bottle body 20 side with a temporary retracting operation to lock the lock member 32 in a closed state, and the lock member 32 is temporarily closed from the outer surface. The lock is released in response to the retraction operation. A lock member 32 which is a movable part for the lock and unlock is provided on the side of the one-sided lid 7 in the lock mechanism 8 on the bottle body 20 side. As a fixed part Engagement / disengagement with the engaging portion 31 of the door allows the single-open lid 7 to be locked in the closed state, and the lock can be released, and a sufficient depth and vertical direction obtained between the single-open lid 7 and the drinking mouth 14 can be obtained. The dead space S in the range is obtained, and the single-open lid 7 and the outer surface are flush with each other and provided with a sufficient vertical dimension.

  As a result, the drinking mouth 14 for direct drinking is covered and closed together with the upper end portion of the bottle body 20, and the one-sided lid 7 that opens one side so as to open them is locked in the closed state, and the lock is released. In the lock mechanism 8, a lock member 32, which is a movable part, is provided on the side of the single-opening 7, and the single-opening lid 7 is locked or locked by engagement / disengagement with the engaging part 31 on the bottle body 20 side. Using the dead space S with sufficient depth and vertical range obtained between the single-opening lid 7 and the drinking mouth 14, the single-opening lid 7 and the outer surface are flush with each other for cleaning and wiping. A simple and clean appearance that does not obstruct work, is not bulky, and is easy to operate with sufficient vertical dimensions in addition to making it less susceptible to external force from being caught or hit by others. It can be.

  In addition, the lock member 32 covers the engagement / disengagement member 321 that engages / disengages with the engagement portion 31 and the engagement / disengagement member 321 with the one-sided lid 7 and the outer surface being flush with each other as a normal state. And an unlocking operation member 322 for retracting the engagement / disengagement member 321.

  Thus, the lock member 32 has the engagement / disengagement member 321 that engages / disengages with the engagement portion 31 on the bottle body 20 side, so that the closed single-open lid 7 is temporarily retracted from the engagement portion 31. Can be engaged and locked in the closed state, and the unlocking operation member 322 covers the engagement / disengagement member 321 in a normal state that the one-sided lid 7 and the outer surfaces are flush with each other. Only member 322 and its movement may be visible. Therefore, only the unlocking operation and the return movement of the unlocking operation member 322, which normally assumes that the one-sided lid 7 and the outer surface are flush with each other, are made to appear, and the simplicity of the operation is made intuitive and easy to use. In addition, the engagement / disengagement member 321 can be protected from external force, foreign object biting, and dust adhesion.

  Further, the single-open lid 7 is provided with a safety stopper 33 as shown in FIGS. 1, 2, 8, and 9, and the operation blocking position shown in FIG. 2 for blocking the unlocking operation of the unlocking operation member 322. The operation can be moved to the operation inhibition release position shown in FIG. As a result, the unlocking operation by the unlocking operation member 322 is prevented and an inadvertent operation is prevented depending on whether the safety stopper 33 is moved to the operation preventing position or the operation preventing release position on the one-sided lid 7. Or the unlocking operation can be performed to release the lock of the one-sided lid 7 to the closed position. Accordingly, it is necessary to prevent the lock release operation by the lock release operation member 322 by only selectively moving the two positions of the safety stopper 33 on the one-sided lid 7 while ensuring safety against inadvertent operation. Can be unlocked according to

  Further, the lock member 32 or the engagement / disengagement member 321 is brought into contact with the bottle main body 20 by the extension operation after the retraction operation is completed, and guided to the opening direction side of the single-open lid 7 as shown in FIGS. A guide portion 34 as shown in FIG. 7 is provided. As a result, the lock member 32 or the engagement / disengagement member 321 can be extended after the release from the engagement portion 31 by the temporary retraction operation by the unlocking operation, whereby the lock member 32 or the engagement / disengagement member 321 is moved to the bottle main body 20 side. Since the single-opening lid 7 is guided to the opening direction side in contact with the guide portion 34 and is guided in the opening direction, the single-opening lid 7 is retracted at least from the lock position by the lock member 32 or the engagement / disengagement member 321. It can be avoided that the release time from the unlocking operation of the member 321 is too early and the member 321 is locked again. Accordingly, at least the one-sided lid 7 is opened by guidance by contact with the guide portion 34 on the bottle body 20 side in the extension operation after the lock member 32 or the engagement / disengagement member 321 is released from the engagement portion 31 by the unlocking operation. Retracting from the lock position, the release timing of the unlocking operation of the lock member 32 or the engagement / disengagement member 321 is too early, and the single-open lid 7 is locked again, thereby eliminating the inconvenience of requiring another unlocking operation. .

  Further, the engagement / disengagement member 321 and the unlocking operation member 322 are supported by the single lid 7 so as to be able to advance and retract in the radial direction, and the engagement / disengagement member 321 is moved to the outer diameter side by a spring 35 as shown in FIGS. The engagement / disengagement member 321 is always located at the engagement position with the engagement portion 31 facing the inner diameter side shown in FIGS. 1 and 7 on the bottle main body 20 side, and the lock release operation member 322 is engaged with the engagement / disengagement member 321. To maintain the normal position. Thus, both the engaging / disengaging member 321 and the unlocking operation member 322 are simply supported so as to advance and retreat in the radial direction with respect to the one-sided lid 7, and the spring 35 for the engaging / disengaging member 321 by the unlocking operation member 322 is supported. In response to the evacuation operation, the unlocking operation member 322 is moved back to the normal position while the engaging / disengaging member 321 is moved back by the bias of the spring 35, and the mutual movement is transmitted without a sliding component. Accordingly, the engagement / disengagement member 321 and the unlocking operation member 322 both have a simple and inexpensive support structure for advancing and retreating, and can smoothly transmit each other's necessary motions without sliding components or twisting. Increases the nature.

  More specifically, the inner plug 52 includes an inner cylinder 52a in which the drinking mouth 14 is integrally formed, and an outer cylinder 52b that fits with an outer peripheral side of the inner cylinder 52a by forming a hollow portion 53. It is formed in a double structure as shown in FIG. The inner cylinder 52a rises from a large-diameter base 52a1 that attaches the seal packing 9 to the outer circumferential groove 52a9 and presses against the stepped portion of the mouth portion 1a, forming a flow path 52a2 that is narrowed from the bottle center vicinity to the front side, From the vicinity of the hinge connecting portion 10 to the front portion of the dead space S where the lock mechanism 8 is provided between the peripheral wall of the one-sided lid 7, with respect to the spout 14 that widens rearward from the flow path 52 a 2. Although it is slightly smaller than the channel 52a2, it is communicated with a throttle port 52a3 that is elongated in the front-rear direction and thus in the radial direction. The drinking mouth 14 has a dish shape as shown in FIGS. 7 and 8 with the bottom portion deepening from the rear to the front and the upper end rising from the rear to the front. When the bottle body 20 is tilted until the liquid level 36 reaches the front end 14a of the drinking mouth 14 in the almost full state as shown in FIG. 1, a pool of content liquid that flows out through the throttle opening 52a3 is formed at the front of the drinking mouth 14. A portion 14b is formed, and after the content liquid is guided to the reservoir portion 14b from the large-diameter base portion 52a1 to the flow path 52a2 narrowing toward the throttle port 52a3, the direct flow is prevented by the throttle port 52a3. It has a small dam portion 52a4 that exhibits the function of stopping or flowing out by tilting it, and can be directly drunk in the spilled state as desired while pouring further narrowed to a channel width that is easy to drink directly I am doing so. By adjusting the amount of outflow from the front end 14a of the drinking mouth 14, it is possible to drink directly and without any disturbance. 3 and FIG. 6, the throttle port 52a3 has a larger length in the front-rear direction in the radial direction than the width that regulates the flow path width, and the liquid level 36 in FIG. Even when the liquid flows out from the full state, the intake passage 52a5 is secured at the rear of the throttle port 52a3, so that the content liquid can be smoothly discharged without being disturbed.

The inner cylinder 52a and the outer cylinder 52b form the hollow portion 53 around the entire circumference of the flow path 52a2, and air-insulates the inside and outside at the top of the inner plug 52. It is advantageous for heat insulation and cold insulation, and it is possible to prevent condensation on the top surface of the inner plug 52 due to a difference from the outside air temperature during cold insulation. In order to form the hollow part 53, the inner cylinder 52a and the outer cylinder 52b are fitted to each other at the upper part and the lower part, and at least one of the inner cylinder 52a and the outer cylinder 52b has an integrated seal and ultrasonic welding, etc. In addition, the content liquid is prevented from leaking from the inside of the inner plug 53 to the outside. In the illustrated example, ultrasonic welding is performed at the fitting portion between the top plate 52a6 having the drinking mouth 14 of the inner cylinder 52a and the top plate 52b1 of the outer cylinder 52b, and the lower end of the outer cylinder 51 is attached to the outer periphery of the base 52a1 of the inner cylinder 52a. 4 and is received by a flange 52a7, and the fitting portion is sealed with a seal packing 37. The seal packing 37 is attached to an annular groove 52a8 formed in a base portion 52a1 of the inner cylinder 52a. is there. The outer plug 51 is integrated with a forcible fitting portion 39 shown in FIGS. 1 and 5 in which the top plate 51a is forcibly fitted on the outer periphery of the upper end 52b1 of the outer cylinder 52b so that the single-opening lid 7 can be opened and closed. The hinge connecting part is supported on the base. Further, as shown in FIG. 8, the lower surface of the top plate 52b1 is provided with a convex portion 52b2 that fits into the notch 52a10 of the top plate 52a6,
A seal packing 16 that closes the throttle port 52a3 in a closed state is attached to the tip of a protrusion 7b that protrudes downward from the top plate 7a, and the front peripheral wall from the substantially central portion in the front-rear direction on the top plate 7a. A hook-shaped pocket 41 as shown in FIGS. 1, 8, and 9 reaching 7 c is provided, and the lock mechanism 8 is accommodated in the pocket 41. Specifically, a recess 42 opened in front of the front portion of the top surface of the pocket 41 is formed so that the upper side 321a of the Γ-type engaging / disengaging member 321 as shown in FIGS. And is biased to the front side by the spring 35. The hook 321b facing the front at the lower end of the engaging / disengaging member 321 is integrally formed at the front upper end of the outer cap 51 of the bottle body 20 toward the rear by this biasing, as shown in FIGS. The position of engaging with the engaging portion 31 is maintained. A hook-shaped unlocking operation member 322 as shown in FIGS. 1, 8, and 9 is fitted into the pocket 41 in the state shown in FIG. 9 into which the engagement / disengagement member 321 is fitted, and the lower surface of the upper side 322a. The pair of hook pieces 322b that are formed downward on both sides of the central portion in the front-rear direction are elastically engaged with the engaging portions 41a that are integrally formed inwardly on both side walls of the top surface of the pocket 41, so It is attached so that it can slide back and forth in the stopped state, and at the same time, the engagement / disengagement member 321 is held in the pocket 41 so as to be able to slide back and forth by the unlocking operation member 322. A stopper 322c that opposes the front end of the engaging portion 41a is integrally formed on the front side of the hook piece 322b on the lower surface of the upper side 322a of the unlocking operation member 322, and the engaging / disengaging member 321 is formed by the unlocking operation member 322. Retreating against the spring 35, disengaging the engaging portion 31 to release the lock of the one-sided lid 7, and further causing the hook 321b of the engaging / disengaging member 321 to ride on the guide portion 34, When the initial opening of the one-sided lid 7 is achieved, the stopper 322c comes into contact with the engaging portion 41a to prevent further operation. Further, the unlocking operation member 322 has a pushing operation piece 322d that hangs down from the front part of the upper side 322a, and the lower end of the pushing operation piece 322d rises from the bottom of the pocket 41 of the peripheral wall 7c of the single lid 7 as shown in FIG. By abutting, the return position is restricted, and it is prevented from coming out of the pocket 41 forward. The engaging portion 31 on the bottle body 20 side is formed so as to protrude from the upper end of the outer cap 51 as shown in FIGS. 1 and 7, and the peripheral wall 7 c of the one-sided lid 7 escapes from this, FIG. A notch 7d as shown in FIG. 8 is provided, and the hook 321b of the engagement / disengagement member 321 faces the notch 7d from the inside as shown in FIGS.

  Accordingly, excessive operation of the unlocking operation member 322 is prevented to prevent damage to itself and other members, and the one-sided lid 7 is engaged and disengaged by an initial opening at the final stage of the unlocking operation. Since the lock release operation member 322 and the one-sided lid 7 are released, the engagement / disengagement member 321 returns to the engagement position with the lock release operation member 322 by the bias of the spring 35. Then, the single-open lid 7 is not locked again, and the single-open lid 7 is automatically and reliably opened by the bias of the spring 131. When the single-open lid 7 is closed from the open position, the engagement / disengagement member 321 returns to the engagement position with the engagement portion 31 on the bottle body 20 side, but can be slid independently inside the lock release operation member 322. Therefore, when the hook 321b comes into contact with the engaging portion 31 from above at the final stage of closing the one-sided lid 7, the engagement / disengagement member 321 resists the spring 35 by sliding on one or both of the slopes and curved surfaces. However, it reaches the engaging position with the engaging portion 31 while being temporarily retracted backward. When the hook 321b reaches the engagement position with the engagement portion 31, the engagement / disengagement member 321 is independently returned to the engagement position by the bias of the spring 35, and the hook 321b is brought into the engagement portion 31 as shown in FIG. Since it is engaged, the single-open lid 7 is automatically locked in the closed state. In order to close the single-open lid 7, it is only necessary to perform a closing operation by pressing the unlocking operation member 322 positioned on the upper surface and the front surface of the free end, and the closing operation is thus performed by the unlocking operation member 322. The unlocking operation member 322 that slides back and forth is not moved carelessly, and the unlocking operation member 322 is received at the bottom of the pocket 41 and is not damaged. .

  In addition, as shown in FIG. 8, the lock operation member 322 is provided as a wide and large one, and thus there is an advantage that the operability is improved and the movement is not stable. Further, the engaging / disengaging member 321 on the inner side can be enlarged without being exposed to the outside, and the locking feeling accompanied by the engagement sound and the certainty of the locking are increased. Further, the unlocking operation member 322 which is a main member on the one-sided lid 7 is in a position substantially corresponding to the drinking mouth 14 together with the engagement / disengagement member 321 and the safety stopper 33, and is also a saddle type corresponding to the drinking mouth 14. Provided within the surface range.

  The safety stopper 33 is an integrally molded product made of resin, has a long operation head 33a in the left-right direction as shown in FIGS. 1, 2, and 8, and has a recess 61 formed on the upper side 322a of the unlocking operation member 322. It is housed so that it can slide left and right inside. The safety stopper 33 is integrally formed on the left and right sliding windows 61a as shown in FIGS. 1 and 9 provided at the bottom of the recess 61 on both sides of the central portion in the left and right direction of the lower surface of the operation head 33a. Such a hook piece 33b is elastically engaged from above to prevent it from coming off, and is supported so that it can slide to the left and right. Further, a stopper 33c as shown in FIG. 9 is integrally formed on the lower surface of the operation head 33a. In the blocking position shown in FIG. 1 for blocking the unlocking operation of the safety stopper 33, the stopper 33c is opposed to the receiving protrusion 41b formed on the rear portion of the top surface of the pocket 41, and the unlocking member 322 is retracted. Therefore, when the unlocking operation is performed, the stopper 33c and the receiving projection 41b are stretched to prevent the backward operation and thus the unlocking operation. Further, in the blocking release position shown in FIG. 8 of the safety stopper 33, even if the stopper 33c is disengaged from the position facing the receiving projection 41b and the unlocking member 322 is retracted, and therefore the unlocking operation is performed, the stopper 33c. Does not come into contact with the receiving protrusion 41b and does not prevent the backward operation and hence the unlocking operation. Although not shown in the drawing, an engagement portion that click-engages between one of the hook pieces 33b and the edge of the sliding window 61a on which the sliding is made is provided at two locations corresponding to the blocking position and the blocking release position, and a safety stopper 33 can be selectively stabilized at any position. Although the safety stopper 33 is a lateral slide type operating member, the safety stopper 33 may be an operating member in the pushing direction.

  The present invention is practically used in a single-open bottle, and is provided so that the movable part of the lock mechanism does not protrude from the outer surface of the single-open lid and is easy to operate.

DESCRIPTION OF SYMBOLS 1 Vacuum double container 1a Mouth part 5 Plug body 51 Outer plug 52 Inner plug 7 Single opening lid 8 Lock mechanism 32 Lock member 321 Engagement member 321b Hook 322 Unlocking operation member 10 Hinge connection part 14 Drinking mouth 20 Bottle main body 31 Engagement Joint part 33 Safety stopper 33a Operation head 33c Stopper 34 Guide part 35, 131 Spring 41 Pocket 41b Receiving protrusion 42 Recess S Dead space

Claims (1)

A bottle body with a drinking mouth that can be directly drink at the upper end, and a single-opening that opens and closes the drinking mouth by covering the upper end of the bottle body around the hinge connection part on one side of the upper end of the bottle body. A single-open bottle having a lid and a lock mechanism that locks the single-open lid in a closed state between the bottle body and releases the lock,
The lock mechanism is provided satisfying that the engagement portion which is the lock mechanism fixing portion provided on the bottle body side and the front surface and the upper surface and the outer surface of the single-open lid are in a normal state. A lock mechanism movable part that engages and locks the engaging part with a temporary retraction operation from the engaging part when the single-open lid is closed, and releases the lock by a temporary retraction operation from the outer surface. It is composed of a lock member that is
Provided on the outer surface that is flush with the upper surface of the single-open lid of the lock member, and includes a safety stopper that moves between an operation blocking position for blocking the lock member unlocking operation and an operation blocking release position for releasing the blocking. A single-open bottle characterized by that.

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