JP2005193944A - Stopper of drink container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stopper of a drink container which enables a lid member to be opened/closed easily, keeps the lid member closed firmly, and is superior in design property. <P>SOLUTION: The stopper has a hinge 5, and a lock mechanism 7 is formed in opposite to the hinge 5 of a stopper 3. The lock mechanism 7 comprises an engaging piece 8 formed on the lid member 6, a seesaw lock button 10, which is attached to a mouth stopper member 4 to be turnable inward and outward relative to the mouth stopper member 4 via a pivot member 9 formed on the mouth stopper member 4, and a slidable stopper 11 which is formed slidably on the outer peripheral wall of the mouth stopper member 4. The lock button 10 has an engaging part with which the engaging piece 8 engages and disengages, and a spring 13 which applies energy to the engaging part to keep pushing it in a direction of engagement with the engaging piece 8. The slidable stopper 11 has a stopper piece 11a which regulates the move of the lock button 10 in a lock release direction when inserted between the lower part of the lock button 10 and the outer peripheral wall of the mouth stopper member 4, and a projection 11c which holds the slidable stopper 11 at an insertion position and a noninsertion position of the stopper piece 11a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to plugs of various beverage containers including portable thermos bottles, water bottles, and sports drink containers, and more particularly to a beverage container plug that can be opened with a single touch during use.

Conventionally, a plug member attached to the upper opening of the container body and a lid member connected to the plug member so as to be openable and closable by a hinge and covering the spout opening to the top plate of the plug member in a liquid-tight manner. Some beverage container caps are provided with a locking mechanism on the opposite side of the hinge for holding the lid member in a closed state and releasing the closed state.

The lock mechanism includes a seesaw-type lock button and a locking ring provided on the plug member, an engagement piece that engages with the lock button provided on the lid member, and a locking rib that locks the engagement ring. The lock button is engaged with the engaging piece of the lid member rotated in the closed position, and the closed state of the lid member is maintained by engaging the engagement ring with the engagement rib. . When opening the lid member, remove the locking ring latched on the locking rib and push the lower end side of the lock button to release the engagement between the lock button and the engagement piece. It is biased in the opening direction by the biasing means (see, for example, Patent Document 1).
JP 2003-212258 A

  However, in the above, when opening and closing the lid member, it is necessary to first remove the locking ring from the locking rib or engage, so it takes time to open and close the lid member, Since the locking rib and the locking ring are arranged around the lock button, the appearance is poor. Further, the locking ring is easily caught by surrounding objects, and there is a possibility that the locking ring may be inadvertently detached from the locking rib.

  Accordingly, an object of the present invention is to provide a beverage container stopper that can easily open and close the lid member, is excellent in design, and can reliably hold the closed state of the lid member. Yes.

In order to achieve the above object, the present invention provides a plug member attached to an upper opening of a container body, and a spout that is connected to the plug member by a hinge so as to be opened and closed and opens to a top plate of the plug member. A lid member for liquid-tightly covering the lid member of the beverage container having a locking mechanism for holding and releasing the closed state of the lid member on a side opposite to the hinge. An engagement piece provided at a rotating end of the member, a lock button pivotally supported by a shaft member provided on an outer surface portion of the plug member, and attached to be rotatable in the inner and outer directions of the plug member; A sliding stopper provided on the outer peripheral wall of the stopper member so as to be slidable, and the lock button has an engaging portion on the upper portion where the engaging piece can be engaged and disengaged, and the engaging portion is locked. Biasing means for biasing in the direction of engagement with the piece, and the sliding stop. Is a stopper piece that restricts the movement of the lock button in the unlocking direction when inserted between the lower part of the lock button and the outer peripheral wall of the plug member, and the insertion position and non-insertion position of the stopper piece And an engaging portion for holding the slide type stopper.

  Further, the upper end surface of the lock button that contacts the locking piece may be formed in a tapered shape that descends toward the outer peripheral side or the inner peripheral side, and further, the biasing member that biases the lid member in the opening direction. It is preferable to provide a biasing means.

  According to the first invention, the engagement piece of the lock button and the lid member is engaged, the slide type stopper is slid upward, and the upper part of the slide type stopper is interposed between the lock button and the outer peripheral wall of the lower container body. By inserting, the rotation of the lock button can be restricted and the closed state of the lid member can be favorably maintained. Further, by sliding the lock button downward and pushing the lower part of the lock button inward, the engagement between the lock button and the engagement piece of the lid member is released, and the lid member can be easily opened. The slide-type stopper and lock button can be easily operated with one finger, the lid can be easily opened and closed, and the appearance is simple, so it has excellent design. .

  According to the second invention, when the lid member in the opened state is pressed in the closing direction, the engaging piece is lowered while being guided by the tapered upper end surface of the lock button, and the upper portion of the lock button is outside the plug member. , The engaging piece engages with the lock button, and at the same time, the engaging portion of the lock button is urged in the engaging direction with the locking piece by the urging means. And the engagement groove are held, and the lid member can be easily closed.

  According to the third invention, when the engagement between the lock button and the engagement piece of the lid member is released, the lid member can be automatically opened by the urging means.

Hereinafter, each embodiment in which the present invention is applied to a portable thermos will be described with reference to the drawings. 1 to 4 show a first embodiment of the present invention. A thermos bottle 1 includes a metallic container body 2 and a synthetic resin stopper 3 attached to an upper opening of the container body 2. It has. The plug 3 includes a plug member 4 and a lid member 6 that is connected to the plug member 4 by a hinge 5 so as to be openable and closable and covers the spout 4b that opens to the top plate 4a of the plug member 4 in a liquid-tight manner. And a locking mechanism 7 for holding and releasing the closed state of the lid member 6 is provided on the opposite side of the hinge 5. The container body 2 has a heat insulating double structure in which the upper opening edges of the inner cylinder 2a and the outer cylinder 2b are integrally joined, and a vacuum heat insulating layer 2c is formed between the inner cylinder 2a and the outer cylinder 2b. A male screw 2d for screwing the plug member 4 is formed on the outer periphery of the upper part.

  The locking mechanism 7 has an intermediate portion pivotally supported by an engagement piece 8 provided on the outer surface of the rotation end of the lid member 6 and a shaft member 9 provided on the outer surface of the plug member 4. A seesaw-type lock button 10 that is rotatably attached inward and outward, and a slide-type stopper 11 that is slidably provided on the outer peripheral wall of the plug member 4 are provided.

  The lock button 10 is formed with an engagement groove 12 on the upper inner surface where the engagement piece 8 can be engaged and disengaged, and the upper end surface 10a is formed in a tapered shape that descends inward. Further, between the back side of the lock button 10 below the shaft member 9 and the plug member 4, a spring 13 (biasing means) that biases the engagement groove 12 in the engagement direction with the locking piece 10. ) Is reduced.

  The sliding stopper 11 is provided so as to be slidable in the vertical direction while being guided by guide ribs 14 projecting from the outer surface of the plug member 4, and between the lower part of the lock button 10 and the outer peripheral wall of the plug member 4. And a stopper piece 11a for restricting the movement of the lock button 10 in the unlocking direction when inserted into the handle, and a knob 11b protruding from the outer surface. On the back surface of the sliding stopper 11, there are provided protrusions 11c (locking portions) for holding the sliding stopper 11 at the insertion position and the non-insertion position of the stopper piece 11a, respectively.

The plug member 4 is formed in an inverted bottomed cylindrical shape in which a top plate 4a covering the upper opening of the container body 2 is provided on the upper surface of the cylindrical portion 4c surrounding the upper outer periphery of the outer cylinder 2b, and the cylindrical portion 4c. Is formed with a female screw 4d that is screwed onto the male screw 2d. The guide rib 14 protrudes from one side of the cylindrical portion 4c and engages with the protrusion 11c so that the sliding stopper 11 is moved to the insertion position and the non-insertion position of the stopper piece 11a. Each is provided with an upper protruding piece 4e and a lower protruding piece 4f to be held. A drinking mouth 15 is formed on one side of the top plate 4a, and a hinge rib 16 as a constituent member of the hinge 5 is projected on the other side of the top plate 4a. The drinking mouth 15 has a thickness suitable for the user to include in the mouth from the top 4a, and protrudes in a substantially cylindrical shape with a height covered by the lid member 6, and the inside thereof is a beverage spout 4b. It is said.

  The lid member 6 is formed in an inverted bottomed cylindrical shape including a cylindrical portion 6c continuous above the cylindrical portion 4c of the plug member 4 and a top plate 6b that closes the upper surface of the cylindrical portion 6a. The one side portion where the lock mechanism 7 is located is high and the other side where the hinge 5 is located is low. In the cylindrical portion 6a, an engagement piece 8 which is a constituent member of the lock mechanism 7 protrudes on the outer peripheral side on the lower surface of the rotating end, and the front end side lower surface 8a of the engagement piece 8 has a tapered shape in which the outer peripheral side rises. Is formed. On the other side of the cylindrical portion 6a, a bifurcated arm constituting the hinge 5 and a claw piece 6c for holding the open state are formed. Inside the top plate 6b, a packing 17 and an elastic member (biasing means) are formed. ) 18 is provided. The packing 17 is formed in a spherical shape having a diameter larger than that of the upper end surface of the drinking mouth 15, and when the lid member 6 is closed, it elastically contacts the upper end surface of the drinking mouth 15 to make the drinking mouth 15 liquid-tight. It comes to seal. The elastic member 18 is formed into a cylindrical shape with a bottom made of a soft synthetic resin such as silicon or a non-metallic material such as rubber, and the opening is fitted to a cylindrical boss portion protruding from the inner surface of the top plate 6b. The lid member 6 is attached. The length of the elastic contact member 18 is designed such that the lower end of the elastic contact member 18 contacts the top plate 4a of the plug member 4 when the cover member 6 rotates slightly before the closing position. When is closed, the elastic contact member 18 is compressed in the axial direction. Further, when the closed state of the lid member 6 is released by the lock mechanism 7, the elastic contact member 18 extends in the axial direction and repels the lid member 6 in the opening direction.

  The hinge 5 is configured by sandwiching the hinge rib 16 of the plug member 4 between the bifurcated arms of the lid member 6 and inserting the hinge shaft 19 therethrough. The lid member 6 is connected to the plug member by the hinge 5. The upper part of 4 is assembled so that opening and closing is possible. An engaging rib 16a is formed on the outer surface of the hinge rib 16, and the claw piece 6c of the top plate 6b is engaged with the engaging rib 16a to hold the lid member 6 at an open position of 180 degrees or more. It is like that.

In the thermos 1 configured as described above, when the lid member 6 in the open state is pressed in the closing direction, the engagement piece 8 of the lid member 6 has a tapered lower end 8a formed as a taper. It descends while being guided by 10 tapered upper surface ends 10a. As a result, the upper part of the lock button 10 is rotated to the outside of the plug member 4 to engage the engagement piece 8 with the engagement groove 12, and the upper part of the lock button 10 is Since it is biased inward, the engagement between the engagement piece 8 and the engagement groove 12 can be maintained, and the lid member 6 can be easily closed.

  Next, the sliding stopper 11 is slid upward, the stopper piece 11a is inserted between the lower part of the lock button 10 and the outer peripheral wall of the container body 2, and the upper protruding piece 4e having the protruding part 11c formed in the cylindrical part 4c. Engage with the top of the. As a result, the lock button 10 is restricted from rotating, and the insertion position of the stopper piece 11a is held by the engagement between the protrusion 11c and the upper protrusion 4e. The engagement state is reliably held, and the lid member 6 is not opened carelessly.

When the lid member 6 is opened to drink a drink, the sliding stopper 11 is slid downward, the stopper piece 11a is removed from between the lower part of the lock button 10 and the outer peripheral wall of the container body 2, and the protrusion 11c is lowered. It arrange | positions below the protrusion 4f. The lower portion of the lock button 10 is pushed inward against the spring force of the spring 13 and the upper portion of the lock button 10 is rotated outward to release the engagement between the engagement piece 8 and the engagement groove 12. . Accordingly, the lid member 6 is urged and opened in the opening direction by the elastic force of the elastic member 18. The lid member 6 is locked by the engagement between the claw piece 6c and the engagement rib 16a, and the upper portion of the plug member 4 is opened. The sliding stopper 11 is slid by, for example, moving the knob 11b up and down with one thumb, and the lock button 10 can be pushed with one thumb, so that the lid member 6 can be easily opened. Can do.

  In addition, since the locking ring is not provided as in the prior art, the lid member can be easily and reliably opened and closed with a single touch, and the appearance is simplified and the design is excellent.

  FIG. 5 shows a second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The lock mechanism 20 according to this embodiment has a lower part pivotally supported by an engagement piece 21 provided in the rotation end face of the lid member 6 and a shaft member 22 provided on the outer surface part of the plug member 4, and the upper part is open to the mouth. A lock button 23 provided so as to be rotatable inward and outward of the plug member 4 and a slidable stopper 24 provided slidably on the outer peripheral wall of the plug member 4 are provided.

  The engaging piece 21 protrudes from the inner surface of the rotating end, and the front end side lower surface 21a of the engaging piece 21 is formed in a tapered shape in which the outer peripheral side descends. The lock button 23 is provided with an engaging portion 25 projecting from the engaging piece 21 on its upper outer surface, and its upper end surface 25a is formed in a tapered shape that descends outward. An inclined surface 25 b is formed below the engaging portion 25 so that the engaging piece 21 can be accommodated without protruding from the outer periphery of the container body 2. Between the back surface of the lock button 23 above the shaft member 22 and the plug member 4, a spring 26 that biases the engagement portion 25 in the engagement direction with the locking piece 21 is contracted. Yes.

  The sliding stopper 24 is guided by a guide rib 14 projecting from the outer surface of the plug member 4 and is slidable in the vertical direction, and is inserted between the lower portion of the lock button 23 and the outer peripheral wall of the plug member 4. When it is done, it has a stopper piece 24a that restricts the movement of the lock button 23 in the unlocking direction, and a knob piece 24b projects from the outer surface. On the back surface of the sliding stopper 24, there are provided projecting portions 24c that respectively hold the sliding stopper 24 at the insertion position and the non-insertion position of the stopper piece 24a.

In the above-described lock mechanism 20, when the lid member 6 in the opened state is pressed in the closing direction, the engagement piece 21 of the lid member 6 has a tapered tip-side lower surface 21 a formed on the lock button 23. It descends while being guided by the upper end surface 25a. Thereby, the upper part of the lock button 23 is rotated to the inside of the plug member 4, the tip side lower surface 21a and the inclined surface 25b are brought into contact with each other, and the engagement piece 21 is engaged with the engagement portion 25, and the lock button 23 Since the upper part of 23 is biased outward by the spring 26 by the spring 26, the engagement between the engagement piece 21 and the engagement portion 25 can be maintained and the lid member 6 can be easily closed. .

  Next, the sliding stopper 24 is slid upward, the stopper piece 24a is inserted between the lower portion of the lock button 23 and the outer peripheral wall of the container body 2, and the upper protrusion 4e having the protrusion 24c formed on the cylindrical portion 4c. Engage with the top of the. Accordingly, the rotation of the lock button 23 is restricted and the insertion position of the stopper piece 24a is held by the engagement between the protrusion 24c and the upper protrusion 4e. The engagement state is reliably held, and the lid member 6 is not opened carelessly.

When the lid member 6 is opened to drink a drink, the sliding stopper 24 is slid downward, the stopper piece 24a is removed from between the lower part of the lock button 23 and the outer peripheral wall of the container body 2, and the protrusion 24c is lowered. It arrange | positions below the protrusion 4f. The lock button 23 is pushed slightly above the shaft member 22 inwardly against the spring force of the spring 26, and the upper part of the lock button 23 is turned inward so that the engagement piece 21 and the engagement portion 25 are engaged. The cover is released and the lid member 6 is opened.

  In addition, this invention is applicable not only to what is applied to a portable thermos bottle like the above-mentioned example, but to any drink containers other than a direct drinking type.

Sectional drawing of the principal part of the state which the cover member of the plug body which shows the 1st form example of this invention closed Cross-sectional view of relevant parts showing a state in which the lid member is also opened Front view of relevant parts showing the sliding stopper slid upward Front view of relevant parts showing the sliding stopper slid downward Sectional drawing of the principal part of the state which the cover member of the plug body which shows the 2nd form example of this invention closed

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Thermos, 2 ... Container body, 2a ... Inner cylinder, 2b ... Outer cylinder, 2c ... Heat insulation layer, 2d ... Male screw, 3 ... Plug body, 4. · Plug member, 4b ··· spout , 4c · · · cylindrical portion, 4d · · · female screw, 4e · · · upper protrusion, 4f · · · lower protrusion, 55 · · · hinge, 6 · ..Cover member, 6a ... cylindrical part, 6 ... top plate, 6c ... claw piece, 7,20 ... lock mechanism, 8,21 ... engagement piece, 8a, 21a ..Front side lower surface, 9, 22 ... Shaft member, 10, 23 ... Lock button, 10a, 23a ... Upper end surface, 11, 24 ... Sliding stopper, 11a, 24a ... Stopper Pieces, 11b, 24b ... pick pieces, 11c, 24c ... projections, 12 ... engaging pieces, 13,26 ... springs, 14 ... guide ribs, 15 ... Drinking mouth, 16 ... hinge rib, 16a engagement rib, 17 ... packing, 18 ... elastic member, 19 ... hinge shaft, 25 ... engagement portion

Claims (3)

A plug member attached to the upper opening of the container body, and a lid member that is connected to the plug member so as to be openable and closable by a hinge, and covers the extraction port that opens to the top plate of the plug member in a liquid-tight manner. In a beverage container plug provided with a lock mechanism for holding and releasing the closed state of the lid member on the opposite side of the hinge, the lock mechanism is an engagement provided at a rotating end of the lid member. A piece, a lock button pivotally supported by a shaft member provided on the outer surface of the plug member, and rotatably attached to the inside and outside of the plug member; and a slide button provided on the outer peripheral wall of the plug member. The lock button has an engaging portion on the upper portion thereof that allows the engagement piece to be engaged and disengaged, and urges the engagement portion in an engagement direction with the locking piece. The sliding stopper includes a lower part of the lock button and a plug. A stopper piece that restricts the movement of the lock button in the unlocking direction when inserted between the outer peripheral wall of the member, and the sliding stopper is held at the insertion position and the non-insertion position of the stopper piece, respectively. A stopper for a beverage container, comprising: a locking portion. 2. The stopper for a beverage container according to claim 1, wherein an upper end surface of the lock button that comes into contact with the locking piece is formed in a tapered shape that descends toward the outer peripheral side or the inner peripheral side. The stopper for a beverage container according to claim 1, further comprising biasing means for biasing the lid member in the opening direction.

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