JP4037396B2 - Liquid storage pot - Google Patents

Description

  The present invention relates to a liquid storage pot such as an electric pot or a heat retaining pot, and more particularly to a lid hinge locking mechanism for a lid.

  A liquid storage pot such as an electric pot employs a structure in which a lid is detachably attached by engaging a hinge pin provided on the lid with a hinge receiving groove provided on the pot body. Conventionally, in order to prevent the hinge pin from being detached from the hinge receiving groove when the lid is opened and closed, the lock member is advanced into the opening of the hinge receiving groove to lock the hinge pin, and the lock member is retracted and locked as necessary. A lid hinge locking mechanism is adopted (Patent Document 1).

  The lid hinge lock mechanism disclosed in Patent Document 1 houses a lock member in a case protruding from the outer peripheral surface of the body member of the pot body, and the lock member protrudes from the upper surface of the case to the front surface of the hinge receiving groove. The operation button inserted from the side of the case is engaged with the lock member, and when the user pushes the operation button, the lock member is lowered and unlocked, and the operation button is released by the action of the internal biasing spring. When returning to the original position, the lock member is raised by the action of the S-shaped spring and is brought into the original locked state.

Japanese Patent Laid-Open No. 10-14784

  However, the one disclosed in Patent Document 1 is formed so that the case for storing the lock member and the operation button protrudes outward from the outer peripheral surface of the body member (see FIGS. 1 and 2 of Patent Document 1). For this reason, when the liquid storage pot falls backward, the impact load at the time of the fall is concentrated and acts on the protruding portion, so that there is a problem that the lid hinge lock mechanism is easily damaged.

  Therefore, the applicant has a hinge receiving groove for fitting the hinge pin of the lid on the shoulder member of the pot body, and has a lock member for opening and closing the opening portion of the hinge receiving groove, and the outer peripheral surface of the trunk member of the pot body. The lock member and its operation button are housed in a hinge case provided with a curved surface portion, and a recess that is recessed inward from the curved surface portion is provided in the hinge case, and a slide through which the operation button is inserted is provided on the side surface of the recess. A recess-forming surface that forms a moving hole and connects the inner hole edge of the sliding hole and the curved surface portion is a plane parallel to the hinge pin, and the curved surface portion and the outer peripheral surface of the body member are the same surface A liquid storage pot (hereinafter referred to as a preceding liquid storage pot) in which the hinge case is fitted to the body member is proposed (Japanese Patent Application No. 2003-156951).

  According to this preceding liquid storage pot, since there is no portion protruding rearward from the outer peripheral surface of the trunk member, a clean appearance can be obtained in design, and the impact load is applied to the entire pot body when falling backward. Since it is distributed, the hinge lock mechanism is also difficult to break.

  However, in the preceding liquid storage pot, the concave surface that connects the inner hole edge of the sliding hole and the outer edge of the concave portion is formed by a plane parallel to the hinge pin. Is inevitably determined in accordance with the width in the inner and outer direction of the sliding hole (see FIG. 5 of Japanese Patent Application No. 2003-156951). For this reason, there is a limit to downsizing the hinge case, and there is room for improvement. In the preceding liquid storage pot, since the concave forming surface is formed by parallel planes, the operation buttons and the sliding holes are easily noticeable in a side view, and there is room for improvement in terms of appearance. It was.

  Therefore, an object of the present invention is to provide a liquid storage pot in which the hinge case of the lid hinge lock mechanism can be reduced in size, and the operation buttons and the sliding holes provided on the hinge case are hardly noticeable in appearance. .

  In order to solve the above-mentioned problems, in the present invention, a hinge receiving groove for fitting a hinge pin of a lid body is provided on the shoulder member of the pot body, and a lock member for opening and closing the opening portion of the hinge receiving groove is provided. The lock member and its operation button are housed in a hinge case provided with a curved surface portion along the outer peripheral surface of the member, and a recess is provided in the hinge case so as to be recessed inward from the curved surface portion. A sliding hole is formed through which the operation button is inserted, and a recessed portion forming surface is provided to connect the inner hole edge of the sliding hole and the curved surface portion. The curved surface portion and the outer peripheral surface of the body member are the same surface. In the liquid storage pot in which the hinge case is fitted to the barrel member so as to constitute the concave portion, the concave portion forming surface is curved inward, and the continuous portion of the concave portion forming surface and the curved surface portion is seen in a side view. Inner side of sliding hole From the edge employing the configuration is positioned outward.

  According to the above configuration, the concave portion forming surface is curved inward, and the continuous portion of the concave portion forming surface and the curved surface portion is positioned outward from the inner hole edge of the sliding hole in a side view. As a result, the outer edge of the concave portion is brought closer to the center side of the curved surface portion in the circumferential direction. For this reason, it becomes possible to shorten the circumferential direction length of the curved surface portion as compared with the case of the preceding liquid storage pot, and the hinge case can be downsized. Further, in the side view, the continuous portion is positioned outward from the inner hole edge of the slide hole in the side view, and thus the slide hole and the operation button are shielded by the continuous portion.

  In the above configuration, since the recess forming surface is curved inward, the operation button can be inserted from the outside of the sliding hole in the sliding direction and attached as in the case of the preceding liquid storage pot. It's hard to do. Further, the recess forming surface is easily damaged during the insertion. Therefore, if a configuration is adopted in which a storage portion with an open top surface for storing the lock member and the operation button is provided inside the curved surface portion, and the operation button is inserted into the storage portion from above, The operation button can be easily attached, and the concave surface can be prevented from being damaged.

  Here, it is preferable to employ a configuration in which the operation button has a retaining portion that protrudes from the hole surface of the sliding hole, and a locking portion that engages with the retaining portion is provided in the storage portion. . In the preceding liquid storage pot, since the operation button is inserted through the sliding hole from the outside in the sliding direction, it is necessary to provide a retaining portion so as not to protrude from the hole surface of the sliding hole. The engagement between the retaining portion and the engaging portion of the storage portion becomes shallower. According to this configuration, since the operation button is provided with the retaining portion that protrudes from the hole surface of the sliding hole, and the storage portion is provided with the locking portion that engages with the retaining portion, the retaining button is provided. It is possible to deepen the engagement between the portion and the locking portion without being restricted by the hole surface of the sliding hole, and it is possible to reliably prevent the operation button from falling off.

  Further, in the above configuration, if the configuration in which the hinge case is sandwiched between the shoulder member and the body member and a positioning portion for guiding the sliding of the operation button is provided in the shoulder member is adopted, It becomes possible to simplify the structure.

  Further, in the above configuration, a fitting portion protruding from one of the hinge case and the shoulder member is fitted into a receiving port of the fitting portion provided on the other, and the hinge case is connected to the shoulder member. If the structure sandwiched between the body members is adopted, it is not necessary to screw the hinge case, so that the assembly becomes easy and the cost can be reduced by reducing the number of members.

  In addition, the shoulder member of the pot body is provided with a hinge receiving groove for fitting the hinge pin of the lid, and has a lock member for opening and closing the opening portion of the hinge receiving groove, and a curved surface portion along the outer peripheral surface of the body member of the pot body The locking member and its operation button are housed in a hinge case provided with a recessed portion that is recessed inwardly from the curved surface portion of the hinge case, and a sliding hole through which the operation button is inserted is provided on the side surface of the recessed portion. The hinge case is formed so as to provide a recess forming surface that continues the inner hole edge of the sliding hole and the curved surface portion, and the curved surface portion and the outer peripheral surface of the body member constitute the same surface. In the liquid storage pot fitted to the body member, the operation button has a retaining portion that protrudes with respect to the hole surface of the sliding hole, and an open top storage portion that stores the lock member and the operation button. The curved surface According to the present invention, the storage portion is provided with a locking portion that engages with the retaining portion, and the operation button is inserted into the storage portion from above. It is easy to bend the concave forming surface inward, and even when the concave forming surface is a plane parallel to the hinge pin as in the preceding liquid storage pot, it is easy to mount the operation buttons as described above. Therefore, it is possible to prevent falling off and to prevent the recess forming surface from being damaged.

  As described above, according to the present invention, it is possible to reduce the size of the hinge case of the lid hinge lock mechanism, and to provide a liquid storage pot in which the operation buttons and the sliding holes provided on the hinge case are hardly noticeable in appearance. be able to.

  Hereinafter, a liquid storage pot according to the best mode for carrying out the present invention will be described with reference to the accompanying drawings (FIGS. 1 to 11). The liquid storage pot shown in FIGS. 1 to 3 includes a body member 1 and a shoulder member 2 fitted on the body member 1 in the pot body.

  The shoulder member 2 includes a shoulder member main body 4 for attaching the lid 3 in an openable and detachable manner, and a shoulder ring member 5 fitted to the outer periphery of the upper end of the trunk member 1. They are combined and integrated by screwing them up and down with screws 6 at multiple locations in the circumferential direction.

  The lid 3 has a pair of hinge support arms 31, 31. A hinge case 20 is fitted into a notch recess 10 provided at the upper edge of the trunk member 1, and the hinge case 20 is sandwiched between the trunk member 1 and the shoulder member 2.

  As shown in FIGS. 4 and 5, the shoulder member main body 4 is provided with a pair of recessed portions 11 and 11 for receiving the pair of hinge support arms 31 and 31, and inwardly between both recessed portions 11 and 11. A hinge receiving groove 12 is provided in the opening. An opening 13 communicating with the lower side of the shoulder member main body 4 is provided on the inner side of the hinge receiving groove 12.

  As shown in FIGS. 6A and 6B, a lock member 40 described later is inserted into the opening 13 from below, and the lock member 40 rises from the opening 13 to open the opening 14 of the hinge receiving groove 12. Is closed (locked state) and lowered into the opening 13 to open the opening 14 (unlocked state). Further, as shown in FIGS. 7A and 7B, a guide piece 15 for attaching and detaching the hinge pin 32 is provided inside the opening 13. The hinge pin 32 is fixed between the pair of hinge support arms 31 and 31 and is fitted into the hinge receiving groove 12 in an unlocked state. In the locked state, the hinge pin 32 cannot come out of the hinge receiving groove 12.

  As shown in FIGS. 5 and 8, the hinge case 20 is fitted into the notch recess 10 of the body member 1, and is provided with a curved surface portion 21 along the outer peripheral surface of the body member 1. Concave portions 22 a and 22 b that are recessed inward from 21 are provided symmetrically with respect to the hinge case 20 on both sides in the circumferential direction. The curved surface portion 21 is provided so as to constitute the same surface as the outer peripheral surface of the body member 1 in a state where the curved surface portion 21 is fitted in the notch recess 10. Of course, it is not necessary for the curved surface portion 21 to constitute a completely identical surface, and the end surface of the curved surface portion 21 is allowed to protrude from the outer peripheral surface of the body member 1 for convenience of molding accuracy. On the inner surface of the curved surface portion 21, sandwiching pieces 23, 23 are provided on both sides in the circumferential direction. The sandwiching pieces 23, 23 sandwich the notches 10 that rim the recessed portion 10 from inside and outside, and Restrict movement in the front-rear direction.

  A sliding hole 24 through which the operation button 50 for operating the lock member 40 is inserted is formed in the side surface of the recess 22a on the case center side. The inner hole edge 24 a of the sliding hole 24 and the curved surface portion 21 are continuous at the recess forming surface 25. The concave portion forming surface 25 is curved inward, and the continuous portion 26 between the inner side hole edge 24a and the curved surface portion 21 is located outward from the inner side hole edge 24a. Of course, the position of the continuous portion 26 is preferably set so that the sliding hole 24 is hidden by the positional relationship with the side end portion 21a of the curved surface portion 21 in a side view. Further, the recess forming surface 25 is curved so that the recess 22a is recessed at least to the extent that a fingertip can enter.

  On the other hand, a partition wall 27 is provided in the inner and outer directions on the side surface of the recess 22b on the case center side, and the inner edge 27a of the partition wall 27 is curved via the recess forming surface 25 in the same manner as the recess 22a. It is continuous with the surface portion 21. Further, the inner hole edge 24 a of the sliding hole 24 and the inner edge 27 a of the partition wall 27 are connected by an inner wall 28 provided in a direction parallel to the hinge pin 32.

  A space with an open top surface surrounded by the curved surface portion 21, the partition wall 27, the inner hole edge 24a, the inner wall 28, and the bottom plate portion 29 that is horizontally connected to the lower ends thereof is operated with the lock member 40. It is a storage unit for storing the button 50.

  As shown in FIGS. 9A to 9C, the lock member 40 is provided with a plate-like lock portion 43 at the upper ends of the two S-shaped spring portions 42, 42 standing on both sides of the substrate 41. An inclined cam surface 44 is formed on the outer surface of the portion 43. A protrusion 45 that regulates the amount of compression is provided between the S-shaped spring portions 42 and 42 with a gap from the lock portion 43. Further, a curved spring piece 46 is provided on the sliding hole 24 side on the substrate 41, and a guide portion 47 for restricting the operation button 50 downward is provided on the partition wall 27 side on the substrate 41. Yes.

  On the other hand, as shown in FIGS. 10A to 10C, the operation button 50 is provided with a leg piece 52 that extends in the horizontal direction on one side from the operation head 51 that matches the sliding hole 24. On the inner surface of 52, an inclined cam surface 53 having an opposite slope that matches the inclined cam surface 44 of the lock member 40 is provided.

  Further, the operation button 50 is provided with a retaining portion 54 that projects inward from the inner surface of the leg piece 52 to the hole surface of the sliding hole 24. The retaining portion 54 is in a continuous portion between the operation head 51 and the leg piece 52, and engages with the inner side hole edge 24 a (an engagement portion) in the locked state (see FIG. 8), and is attached to the spring piece 46. It faces and engages with the spring piece 46 in the unlocked state (see FIG. 7A). The operation button 50 is urged by the spring piece 46 in the return direction, that is, the direction of exiting from the sliding hole 24 to the outside of the storage portion.

  The operation button 50 is inserted into the storage portion from above while the base plate portion 29 of the lock member 40 is seated on the bottom plate portion 29 and the spring piece 46 is pushed down. The side hole edge 24a is engaged, the operation head 51 is inserted through the slide hole 24, and the lock member 40 and the operation button 50 are mounted in the storage portion. The substrate 41 is positioned by a locking claw 60 provided on the bottom plate portion 29 and two protrusions 61, 61 provided on the inner wall 28 in the vertical direction (see FIGS. 6B and 8). ).

  In a state where the lock member 40 and the operation button 50 are mounted on the storage portion of the hinge case 20, a pair of parallel fitting ribs 62 and 62 projecting downward from the lower end edge of the shoulder ring member 5 are the inner walls of the hinge case 20. 28 (see FIGS. 6B and 11). When the peripheral rib 1a at the upper end edge of the trunk member 1 and the shoulder ring member 5 of the shoulder member 2 are fitted up and down, the hinge case 20 is fitted into the notch recess 10, and the trunk member 1 and the shoulder member are fitted. 2 and sandwiched.

  According to the above configuration, as shown in FIGS. 7A and 7B, the operation head 51 is pushed into the slide hole 24 so that the operation button 50 and the partition wall 27 are sandwiched between the fingertips. With the tip of 52 in contact with the inner surface of the partition wall 27, the retaining portion 54 pushes down the spring piece 46, and the inclined cam surface 44 of the lock member engages with the inclined cam surface 53 of the operation button, and the S-shaped spring portion 42, 42 is compressed downward, and the lock part 43 is immersed in the opening 13 in connection with this, and it will be in a lock release state.

  Further, as shown in FIGS. 6A and 6B, when the fingertip is separated from the operation head 51, the operation button 50 is moved by the spring piece 46 through the retention portion 54, so that the retention portion 54 is not moved. It is pushed back in the return direction until it engages with the side hole edge 24a, stops, the engagement between the inclined cam surface 44 and the inclined cam surface 53 is released, and the S-shaped spring portions 42, 42 extend upward. As a result, the lock part 43 rises from the opening 13 and enters a locked state. In this way, the operation button 50 slides with a fixed stroke by the retaining portion 54 and moves the lock member 40 up and down.

  During the sliding, the operation button 50 is restricted from moving inward by the contact between the outer end face 64a of the guide rib 64 in the inner and outer directions provided below the hinge receiving groove 12 of the shoulder member body 4 and the leg piece 52, The outward movement is regulated by the contact between the vertical ribs 65, 65 provided on the inner surface side of the curved surface portion 21 and the leg piece 52. Further, the operation button 50 is moved upward by abutment between the leg piece 52 and the positioning part 66a having a rectangular cross section continuously provided at the upper end of the outer end surface 64a of the guide rib 64 and the positioning part 66b sandwiching the opening 13 therebetween. Directional movement is restricted, and downward movement is restricted by the contact between the guide portion 47 provided on the substrate 41 and the leg piece 52. Thereby, the operation button 50 is guided in the sliding direction without shaking when sliding.

The whole perspective view of the liquid storage pot concerning an embodiment. The expansion perspective view of a hinge case part same as the above. The disassembled perspective view of a shoulder member same as the above. The partial expansion disassembled perspective view which shows a lid hinge lock mechanism same as the above from the inner side. The partial expansion disassembled perspective view which shows a lid hinge lock mechanism same as the above from the outer side. (A) The partial expansion vertical rear view which shows the locked state of the lid hinge locking mechanism same as the above. (B) The partial expanded vertical side view which shows the locked state of the lid hinge locking mechanism same as the above. (A) The partial expanded longitudinal front view which shows the lock release state of a lid hinge lock mechanism same as the above. (B) The partial expanded vertical side view which shows the lock release state of a lid hinge lock mechanism same as the above. The partial expanded cross-sectional view which shows the locked state of a lid hinge locking mechanism same as the above. (A) The whole perspective view of the locking member of a lid hinge locking mechanism same as the above. (B) The front view of the locking member of a lid hinge locking mechanism same as the above. (C) The top view of the locking member of a lid hinge locking mechanism same as the above. (A) The whole perspective view of the operation button of a lid hinge lock mechanism same as the above. (B) The front view of the operation button of a lid hinge lock mechanism same as the above. (C) The top view of the operation button of a lid hinge lock mechanism same as the above. The partial expansion perspective view of the shoulder member same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body member 1a Circumferential rib 2 Shoulder member 3 Cover body 4 Shoulder member main body 5 Shoulder ring member 6 Screw 10 Notch recessed part 11 Recessed part 12 Hinge receiving groove 13 Opening 14 Opening part 15 Guide piece 16 Rib 20 Hinge case 21 Curved surface part 21a Side end 22a, 22b Recess 23 Holding piece 24 Sliding hole 24a Inner side hole edge 25 Recess formation surface 26 Continuous part 27 Partition wall 27a Inner edge 28 Inner wall 29 Bottom plate part 31 Hinge support arm 32 Hinge pin 40 Lock member 41 Substrate 42 S-shaped spring portion 43 Lock portion 44 Inclined cam surface 45 Protrusion 46 Spring piece 47 Guide portion 50 Operation button 51 Operation head 51 Leg piece 53 Inclined cam surface 54 Detent portion 60 Locking claw 61 Projection portion 62 Fitting rib 63 Receptacle 64 Guide rib 64a Outer end surface 65 Parallel rib 66a, 66b Positioning portion

Claims (6)

  A hinge receiving groove for fitting the hinge pin of the lid body is provided on the shoulder member of the pot body, a lock member for opening and closing the opening part of the hinge receiving groove is provided, and a curved surface portion is provided along the outer peripheral surface of the body member of the pot body. The lock member and its operation button are housed in a hinge case, and a recess is formed in the hinge case so as to be recessed inward from the curved surface portion, and a slide hole is formed on the side surface of the recess for inserting the operation button. The hinge case is provided with a recess-forming surface that continues the inner hole edge of the sliding hole and the curved surface portion, and the curved surface portion and the outer peripheral surface of the body member constitute the same surface. In the liquid storage pot fitted to the member, the concave portion forming surface is curved inward, and the continuous portion of the concave portion forming surface and the curved surface portion is more than the inner hole edge of the sliding hole in a side view. It is characterized by being located outside Liquid storage pot that.   2. The storage device according to claim 1, wherein a storage portion with an open top surface for storing the lock member and the operation button is provided inside the curved surface portion, and the operation button is inserted into the storage portion from above. Liquid storage pot as described.   The said operation button has the securing part which protrudes with respect to the hole surface of the said sliding hole, and provided the latching | locking part engaged with the said securing part in the said accommodating part. Liquid storage pot.   The said hinge case is pinched | interposed into the upper and lower sides with the said shoulder member and the said trunk | drum member, The positioning part which guides the sliding of the said operation button was provided in the said shoulder member, The Claim 1 characterized by the above-mentioned. Liquid storage pot.   A fitting portion protruding from one of the hinge case and the shoulder member is fitted into a receiving port of the fitting portion provided on the other, and the hinge case is sandwiched between the shoulder member and the trunk member The liquid storage pot according to any one of claims 1 to 4, wherein the liquid storage pot is provided.   A hinge receiving groove for fitting the hinge pin of the lid body is provided on the shoulder member of the pot body, a lock member for opening and closing the opening part of the hinge receiving groove is provided, and a curved surface portion is provided along the outer peripheral surface of the body member of the pot body. Storing the lock member and its operation button in the hinge case, providing a recess in the hinge case to be recessed inward from the curved surface portion, and forming a slide hole through which the operation button is inserted in the side surface of the recess, A recess-forming surface is provided to connect the inner hole edge of the sliding hole and the curved surface portion, and the hinge case is configured to form the same surface with the curved surface portion and the outer peripheral surface of the body member. In the liquid storage pot fitted to the sliding hole, the operation button has a retaining portion that protrudes from the hole surface of the sliding hole, and the upper open storage portion that stores the lock member and the operation button is curved. Inside the face Only, the liquid storage pot, characterized in that this housing part provided with the retaining portion and the locking portion to be engaged, was to insert the operation buttons from above into the compartment.

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