JPS61164954A - Locking mechansim of vessel and cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a locking mechanism for fixing a cover to a container when the cover is placed over the opening of the container.

[Conventional technology]

In order to fix the cover to the opening of the container, conventionally, an L-shaped groove consisting of a vertical groove extending in the axial direction of the container and a lateral groove connected to the vertical groove and extending in the circumferential direction of the container is provided at the opening edge of the container. In addition, a cover is known in which a protrusion is formed on the circumferential surface of the edge of the cover so that the cover can be fitted into the L-shaped groove. That is, when the cover is placed on the container, the protrusions are first engaged with the longitudinal grooves, and then the cover is rotated to engage the protrusions with the transverse grooves. The cover is thus locked onto the container by engagement between the protrusions and the L-shaped grooves, and can be removed from the container by simply pulling it in the axial direction of the container. However, if the cover is rotated in the opposite direction to the above, it will come off the container, so conventionally, a special fixing mechanism has been provided to reliably lock the cover to the container.

[Problem that the invention seeks to solve]

If a special fixing mechanism was used as in the past, it would not only be necessary to operate this fixing mechanism when attaching or removing the cover, but it would also have the problem of being expensive due to the large number of parts. Live.

Means for Solving Problem c] The locking mechanism according to the present invention forms a protrusion at the lower edge of the lateral groove and a notch at the upper edge of the lateral groove, so that the protrusion is connected to the terminal end of the lateral groove. It is characterized by being configured to be supported by a raised part and a notch.

〔Example〕

The present invention will be explained below with reference to illustrated embodiments.

2 and 3 show the appearance of the vegetable cutter 1. FIG. A container 2 for storing cut vegetables is mounted on a suction cup device 3, which fixes the container 2 on the substrate via a suction cup 5 that is manually operated by a lever 4. do. The cover 6 is fitted onto the container 2 and covers the opening of the container 2. Further, the cover 6 is fixed to the container 2 via a locking mechanism which will be described later. A cutter board 8 to which a cutter 7 is attached is arranged inside the container 2. The cutter disk 8 is rotatable around the central axis of the container 2 and is rotationally driven via a handle 9 attached to the outside of the cover 6. An input port 10 is formed in the cover 6 for supplying vegetables to be cut to the cutter board 8.

FIG. 4 is a sectional view of the vegetable cutter 1. A cylindrical part 21 is formed at the center of the bottom of the container 2 so as to protrude upward, and a support 22 of a suction cup device 3, which will be described later, is housed inside this cylindrical part 21. The cutter board 8 is disposed at the opening of the container 2, is rotatably supported by a protrusion 23 projecting from the upper part of the support column 22, and is detachable from the protrusion 23. That is, the hole 25 formed at the tip of the shaft portion 24 extending downward from the center of the power vine board 8 is
It fits into the protrusion 23. On the other hand, a hole 26 having a substantially square cross section is bored inside the shaft portion 24, and an engagement member pivotally supported by a box body 27 extending downward from the upper inner wall of the cover 6 is inserted into the hole 26. 28 is fitted. This engaging member 28 has substantially the same cross-sectional shape as the hole 26 and transmits the rotational force generated by turning the handle 9 to the cutter plate 8 . Therefore, the gear 29 formed on the upper part of the retaining member 28 is connected to the gear 3 fixed to the tip of the drive shaft 30 connected to the handle 9.
meshes with 1.

The cover 6 has a cylindrical portion 3 extending upward and downward from the earthen wall.
2, and the input port 10 is formed by the inner wall of this cylindrical portion 32. A pressing member 33 can be fitted into the cylindrical portion 32 for engaging vegetables or the like inserted into the input port 10 with the cutter. When the pressing member 33 is inserted most deeply into the cylindrical portion 32, its lower surface approaches the cutter as shown in the figure.

The configuration of the suction cup device 3 will be explained using FIGS. 4.5, 6, and 7. The suction cup 5 has a circumferential edge portion 41 that can be brought into close contact with a substrate 40 such as a table, and this circumferential edge portion 41 and the substrate 40
A negative pressure chamber 42 is formed between the two. The frame body 43 having a flat cylindrical shape is placed on the upper surface of the suction cup 5 . The container 2 is placed on the frame 43, and the support 22 that fits into the cylindrical portion 21 of the container 2 is formed at the center thereof. The frame body 43 includes an outer circumferential wall 44 and an inner circumferential wall 45 located inside the outer circumferential wall 44 and in contact with the upper surface of the circumferential edge 41 of the suction cup 5.
Four support frames 46 are formed inside the inner circumferential wall 45 to support the lever 4 so as to be movable forward and backward in the longitudinal direction thereof.

The leg portion 47 located at the front of the lever 4 is split into two parts and inserted into the holes 48 of each support frame 46, and the base portion 49 of the lever 4 is inserted into the hole 50 of the inner circumferential wall 45 and the hole 51 of the outer circumferential wall 44. It penetrates and protrudes outward, and a grip portion 52 is formed at the protruding end.

As shown in FIG. 7, the support frame 46 is formed by punching out the earthen wall part of the frame body 43 downward, and the lever 4 is inserted into the hole 48.
The leg portion 4'/ of is slidably inserted.

The leg portion 47 of the lever 4 is thicker on the tip side and thinner on the base portion 48 side, and an inclined surface 53 is formed at the center of the upper surface.

This inclined surface 53 engages with a pin 62 fixed to a protrusion 61 of a connecting member 60, which will be described later, thereby raising and lowering the connecting member 60 when the lever 4 is displaced in the longitudinal direction. A cover member 54 is attached to the hole 51 in the outer peripheral wall 44 of the frame body 43 to prevent the lever 4 from coming out of the hole 51 when the lever 4 is moved backward. The lid member 54 is fixed to the inner peripheral surface of the outer peripheral wall 44 with an adhesive or the like.

The connecting member 60 includes a disc 63 disposed below the suction cup 5.
A cylindrical protrusion 61 is connected to the upper surface of the disc 63 and protrudes upward through a hole 64 bored in the center of the suction cup 5, and a cylindrical protrusion 61 is provided horizontally through the upper part of the protrusion 61. The protrusion 61 has a pin 62 fixed thereto, and guide ribs 65 are formed on both sides of the protrusion 61. The guide rib 65 is inserted into a flat guide tube 66 formed at the center of the lower surface of the frame body 43 and supported so as to be able to rise and fall freely along the guide tube 66, and the connecting member 60
rotational displacement with respect to the frame body 43. Therefore, the pin 62 attached to the connecting member 60 is always positioned substantially perpendicular to the leg portion 47 of the lever 4.

Four holes 71 are bored in the frame 43 at equal intervals in the circumferential direction, and the bottom of the container 2 has protrusions 7 inserted into these holes 7I.
2 is formed. The tip of the protrusion 72 is larger than the base as shown in FIG.
It consists of an enlarged portion 73 through which the tip of the tube can be inserted, and a reduced portion 74 through which the tip cannot be inserted. Therefore, after inserting the protrusion 72 into the enlarged part 73, if the container 2 is rotated and the protrusion 72 is engaged with the reduced part 74, the container 2 will not come out of the frame 43.

As shown in FIG. 9, the stopper 70 has a front end that is connected to the frame 4.
3, an operating section 78 whose rear end protrudes outward from the hole 77 of the outer circumferential wall 44 of the frame 43, and an operating section 78 formed on both sides of the operating section 78. The rear end of the locking part 76 is fixed to the upper surface of the front end of the operating part 78. The locking part 76 (75f & end is
In order to smoothly displace the stopper 70 forward when the container 2 is rotated relative to the frame 43, the protrusion 72 has a curved slope 80. The pair of leg portions 79 have their tips constantly in contact with the outer surface of the inner peripheral wall 45 .

Therefore, when attaching the container 2 to the frame 43, the protrusion 72
When the container 2 is rotated with respect to the frame 43 with the container 2 inserted into the hole 71, the protrusion 72 engages with the slope 80 and presses the stopper 70 forward while bending the leg 79.
When it gets over the slope 80, the stopper 70 returns to the rear by the spring force of the legs 79. As a result, the container 2 is prevented from rotating by the stopper 70 and is fixed to the frame 43. Conversely, when removing the container 2 from the frame 43, the stopper's operating portion 78 may be pressed to displace the stopper 70 forward and the locking portion 76 may be released from the protrusion 72.

FIG. 1(a) shows a locking mechanism 9 of the cover 6 to the container 2.
Indicates 0. The locking mechanism 90 is attached to a lower edge 91 of the cover 6.
It consists of circular protrusions 92 provided on the outer circumference at 90° intervals and an L-shaped groove 93 formed on the upper edge of the container 2. L
The shaped groove 93 consists of a vertical groove 100 extending in the axial direction of the container 2 and a lateral groove 101 connected to the vertical groove 100 and extending in the circumferential direction of the container 2.

A raised portion 94 is formed at the center of the lower edge of the lateral groove 101, and an arcuate notch 95 is formed at the upper edge of the lateral groove 101. The notch 95 is shaped so that the protrusion 92 engages with it,
The raised portion 94 prevents the protrusion 92 from coming out of the notch 95.

Therefore, to attach the cover 6 to the container 2, it is necessary to first insert each protrusion 92 into the longitudinal groove 100 of the L-shaped groove 93, and then rotate the container 2 so that the protrusion 92 rides over the raised part 94. Figure 1(b)). During this rotation, the protruding portion 97 above the notch 95 is temporarily bent upward by the protrusion 92, and returns to its original position when the protrusion 92 engages with the notch 95. Thus, the protrusion 92 is supported by the terminal end of the lateral groove 101, the raised portion 94, and the notch 95. In other words, the protrusion 92 is the notch 9
5 and is prevented from rotating back to its original position by the raised portion 94, and the cover 6 is locked relative to the container 2.

Since the device of this embodiment has the above configuration, installation on the table and release are performed as follows.

First, as shown in FIG. 5, the lever 4 is pushed into the frame 43 so that the lower part of the inclined surface 53 is engaged with the bottle 62. In this state, the connecting member 60 is located below, the suction cup 5 is relatively flat due to its own restoring force, and the inside of the negative pressure chamber 42 is at approximately atmospheric pressure. Now pull the lever 4 to the right in the figure, and push the inclined surface 53 against the pin 6.
2, the connecting member 63 is displaced upward. As a result, as shown in FIG. 4, the inner portion of the suction cup 5 is lifted and the circumferential edge 41 is brought into close contact with the top of the table, expanding the negative pressure chamber 42 and generating negative pressure. As a result, the suction cup 5 will be suctioned to the table, and the vegetable cutter 1 will be fixed to this table. On the contrary, suction cup 5
In order to release it from the table, the lever 4 is pushed into the frame 43 to displace the suction cup 5 downward, and the inside of the negative pressure chamber 42 is brought to atmospheric pressure.

Furthermore, in order to attach the cover 6 to the container 2, the protrusion 92 is engaged with the vertical groove 100, the cover 6 is moved downward, and then the cover 6 is rotated so that the protrusion 92 is engaged with the horizontal groove 101. As a result, the protrusion 92 climbs over the protrusion 94 and engages the notch 95, and is prevented from rotating in the opposite direction by the protrusion 94, thereby locking the cover 6 to the container 2. Conversely, in order to remove the cover 6 from the container 2, the cover 6 may be rotated with a stronger force than when it was attached to remove the protrusion 92 from the raised portion 94, and then the cover 6 may be pulled up in the axial direction of the container 2.

Note that, contrary to the above embodiment, an L-shaped groove is formed in the cover,
Of course, the container may be provided with a protrusion.

〔Effect of the invention〕

As described above, according to the present invention, the cover and the container can be locked together without using any special parts, and the six-click operation is simple.

[Brief explanation of drawings]

Fig. 1(fa) is a front view showing an embodiment of the present invention, Fig. 1(b) is a front view showing the locked state of the embodiment, Fig. 2 is a side view showing the appearance of the vegetable cutter, and Fig. 3(b) is a front view showing the locked state of the embodiment. The figure is a plan view showing a vegetable cutter, FIG. 4 is a sectional view showing a vegetable cutter to which an embodiment of the present invention is applied, and FIG. 5 is a sectional view showing a case where the suction cup device is in an inoperative state. Fig. 6 is a sectional view taken along the line VI-VI in Fig. 5, Fig. 7 is a sectional view taken along the line ■-■ in Fig. 5, and Fig. 8 is a perspective view showing the protrusion of the container and the hole of the suction cup device. figure,
FIG. 9 is a perspective view showing the stopper. 2... Container, 6... Cover, 92...
Protrusion, 93... L-shaped groove, 94... Protrusion,
95...notch, lOO...vertical groove,
101...Horizontal groove. Figure 1 (a) (b) Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. An L-shaped groove consisting of a vertical groove extending in the axial direction of the container and a lateral groove connected to the vertical groove and extending in the circumferential direction of the container is formed on the opening edge of the container and cover, A locking mechanism in which a protrusion that can be engaged with the L-shaped groove is formed on the other edge of the lateral groove, and the protrusion is engaged with the L-shaped groove to connect the container and the cover, the lower edge of the lateral groove. A container and a cover, characterized in that a raised part is formed in the lateral groove, and a notch is formed in the upper edge of the lateral groove, so that the protrusion is supported by the terminal end of the lateral groove, the raised part, and the notch. locking mechanism.