JP2934811B2 - Container lid lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container lid locking device for locking a cap-type lid placed on the mouth of a container.

[0002]

2. Description of the Related Art As a pressure vessel (high-pressure vessel) used for sterilization or the like, a vessel having a cap-type lid is often used. Further, as means for holding the lid covered on the mouth of such a container, a male and a female screw formed on the container and the lid, a method of directly screwing both via a female screw, a bolt and a nut, A system in which the two are tied together via a clamp or the like is often used. In the above, in the case of a method in which the container and the lid are directly twisted, it takes time and effort to open and close the lid, and particularly in the case of a large-sized one, it is difficult to strongly tighten the lid manually. Even in the case of a system in which the container and the lid are tightened through a plurality of pairs of bolts and nuts or a plurality of clamps, it takes a lot of trouble to operate each one and open and close the lid.

[0003] As a technology that can deal with this,
JP-A-63-1720
No. 62 discloses this. In the case of the container lid locking device, a plurality of pairs of locking holes that are paired with each other are provided on the mouth of the container and the peripheral wall of the lid, respectively, and are detachably disposed with respect to each of the pair of locking holes. The plurality of lock pins are configured to be operable via a ring-shaped rotary plate provided on the outer periphery of the container mouth portion, and a plurality of slide bars extending over the rotary plate and each lock pin. In such a known device, by rotating the rotating plate forward or backward, each lock pin can be inserted into or removed from a plurality of pairs of lock holes at a time. The operability for unlocking and releasing the lock is improved, and the opening and closing operation of the lid does not require any trouble.

[0004]

In the above-mentioned known container lid locking device, the rotating plate protrudes greatly around the mouth of the container, and a plurality of slide bars and associated slide bars are provided on the rotating plate. Since many parts are complicated, it is not possible to avoid an increase in the size of the apparatus, an increase in the number of parts, and an increase in the cost of the product accompanying these. In addition, in the known container lid lock device, a dynamic mechanism including a slide bar, an arm, and the like that is exposed to the outside may come into contact with other objects, which may cause an unexpected accident.
For example, technical considerations for covering these with a cover are required. In such a case, the size of the apparatus is further increased, and the number of parts is increased.

SUMMARY OF THE INVENTION In view of the above technical problems, the present invention provides a container lid lock device capable of ensuring compactness and simplicity of the device, reduction of parts, cost reduction, safety, operability, and the like. It is something to offer.

[0006]

Means for Solving the Problems The present invention is characterized by the following means for achieving the intended object. That is, in an apparatus for locking a cap-type lid covered by a container mouth, an outer peripheral surface of the container mouth has a receiving groove for receiving a peripheral wall of the lid, and a lock pin is provided on an outer wall of the receiving groove. A through hole for entry and exit is formed, and a pin holder having a holding hole for holding a lock pin is attached to an outer wall surface of the receiving groove, and a through hole for entering and exiting the lock pin and a holding hole for holding the lock pin are provided. Are aligned with each other, and a lock pin for allowing the lock pin to enter and exit the receiving groove from the lock pin access hole is inserted and held in the lock pin holding holding hole, and the radial direction An operation ring for rotation operation having a slot on the plate surface for guiding a guide pin intersecting both a line segment along the circumferential direction and a line segment along the circumferential direction is fitted on the outer periphery of the container opening to guide the guide pin. Slot and lock pin for guiding Intersect with each other, and that a guide pin for connecting the operation ring and the lock pin is mounted over the elongated hole for guiding the guide pin and the lock pin, and that the lock hole corresponding to the lock pin is a lid. Characterized by being formed on the peripheral wall.

[0007] The container lid lock device according to the present invention has the following embodiments. One is that a plurality of receiving grooves are distributed on the outer peripheral surface of the container mouth at intervals in the circumferential direction,
A pin holder is attached to the outer wall of each receiving groove, and a plurality of lock pins are held in each holding hole for holding the lock pin, and an operation ring having a plurality of long holes for guiding the guide pin and each lock pin are provided. A plurality of lock pins are connected to each other via a plurality of guide pins mounted over these, and a plurality of lock holes detachably corresponding to the plurality of lock pins are formed in the peripheral wall of the lid.

Another one is that one operating ring is interposed from the rear end side of the lock pin into the inside thereof, and the operating ring and the lock pin are connected to each other via a guide pin.

Further, another one is that two operation rings are arranged at positions sandwiching the outer peripheral surface of the lock pin,
The operation ring and the lock pin are connected via a guide pin.

[0010] One alternative, as well as one of the operating ring is disposed on the upper side or lower side of the locking pin, it is that these operating ring and the lock pin is interlocking through the guide pin.

[0011]

When the lid is put on the mouth of the container in the container lid locking device according to the present invention, the peripheral wall of the lid fits into the receiving groove on the outer periphery of the container mouth. In this state, the through holes on the outer wall of the receiving groove and the lock holes on the peripheral wall of the lid are aligned with each other, and when a lock pin is inserted over the through holes and the lock holes, the container and the lid are locked with each other. When the lock pin is removed from the through hole and the lock hole, the locked state between the container and the lid is released.

Such locking and unlocking can be performed by rotating the operation ring. For example, when the operation ring is rotated forward, a guide pin that moves from the outer peripheral side to the inner peripheral side of the operation ring via the elongated hole pushes the lock pin held by the pin holder through the through hole and the lock hole. Therefore, the container and the lid are locked. In addition, when the operation ring is rotated in the reverse direction, the guide pin that moves from the inner peripheral side to the outer peripheral side of the operation ring through the elongated hole pulls out the lock pin from the lock hole, so that the container and the lid are unlocked. Is done.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an embodiment of a container lid locking device according to the present invention will be described with reference to FIGS.
1 to 3, reference numeral 11 denotes a cylindrical container having a bottom,
Reference numeral 13 denotes an annular projection member; 14a to 14f, a plurality of receiving groove forming members; 19a to 19f, a plurality of pin holders;
a to 26f are a plurality of lock pins, 29 is an operation ring, 3
1a to 31f indicate a plurality of guide pins, and 33 indicates a cap-type lid.

The cylindrical container 11 has an upper surface having a mouth portion 12.
It is open as.

The annular projection member 13 has an inner diameter corresponding to the outer diameter of the container opening 12, is fitted on the outer periphery of the container opening 12, and is integrally attached to the outer peripheral surface thereof.

Each of the receiving groove forming members 14a to 14f has a block-shaped base portion 15 and an outer wall 16 rising from the outer peripheral surface side of the base portion 15, and through holes 17 are formed in these outer walls 16 respectively. I have. Each of the receiving groove forming members 14a to 14f having such a configuration is
Are disposed at respective positions that equally divide the outer periphery, and are integrally attached to the outer peripheral surface thereof. Thus, each receiving groove forming member 14a
When 14 to 14f are attached to the outer peripheral surface of the container mouth 12, a plurality of receiving grooves 18a to 18f are formed between the outer wall 16 and the container mouth 12.

Each of the pin holders 19a to 19f comprises a substantially triangular plate 20 and a tube 21 attached to the outer surface of the plate 20, and a hole passing through the plate surface of the plate 20 and the inside of the tube 21 are locked. A holding hole 22 for holding a pin is formed. In this case, each cylinder 21 has a pair of upper and lower vertical slits 23 and a pair of left and right horizontal slits 24 cut along the axial direction from the rear end side of each cylinder 21. Each of the pin holders 19a to 19f having such a configuration
Are applied to the outer peripheral surfaces of the receiving groove forming members 14a to 14f in a state where the holding holes 22 and the respective through holes 17 coincide with each other, as described later, and
It is attached to each of the receiving groove forming members 14a to 14f.

Each of the lock pins 26a to 26f has an outer diameter that closely fits into each of the holding holes 22 and the through holes 17 described above, and has a tapered tip. At the rear side of each of the lock pins 26a to 26f, there is formed a vertical pin insertion hole 27 for inserting a guide pin, and from the rear end side thereof for inserting an operation ring along the axial direction. The horizontal slit 28 is cut out. Each of the lock pins 26a to 26f is
a to 19f in the holding holes 22
It is connected to the operation ring 29 via guide pins 31a to 31f described later.

The operation ring 29 has an inner diameter that is larger than the outer diameter of the container opening 12, and each of the pin holders 19a to 19f
Can be interposed in the horizontal slit 24. The outer shape of the operation ring 29 is circular, and the inner shape of the operation ring 29 is an irregular shape having a linear portion, an arc portion, a concave portion, and the like.

The guide pins 31a to 31f are for connecting the lock pins 26a to 26f with the operation ring 29. The guide pins 31a to 31f can be engaged with the vertical slits 23 of the pin holders 19a to 19f, the pin insertion holes 27 of the lock pins 26a to 26f, and the long holes 30a to 30f of the operation ring 29. The cylindrical body 21 having a diameter and having the respective pin holders 19a to 19f.
Has a length that exceeds the outer diameter of

Each of the pin holders 19a to 19f, each of the lock pins 26a to 26f, the operation ring 29, and each of the guide pins 31a to 31f are assembled according to the procedure exemplified below to form a container as shown in FIGS. It is attached to the outer periphery of the mouth 12. First, the lock pins 26a to 26f are respectively inserted into the holding holes 22 of the pin holders 19a to 19f, and the vertical slits 23 of the pin holders 19a to 19f and the pin insertion holes 27 of the lock pins 26a to 26f respectively match. The horizontal slit 24 of each of the pin holders 19a to 19f and the horizontal slit 28 of each of the lock pins 26a to 26f are aligned with each other. Next, the operation ring 29
Of the operation ring 29 is aligned with the vertical slits 23 and the pin insertion holes 27, respectively. Thereafter, each of the guide pins 31a to 31f is
Each vertical slit 23, each pin insertion hole 27, each long hole 30a ~
Each of the guide pins 31a to 31f is inserted into a corresponding one of the guide pins 31a to 31f. Hereinafter, the inner surfaces of the respective pin holders 19a to 19f are applied to the outer surfaces of the respective receiving groove forming members 14a to 14f, and these pin holders 19a to 19f are attached to the respective receiving groove forming members 14a.
Attach to ~ 14f.

As described above, the cap-shaped lid 33 forms a pair with the cylindrical container 11, and has a plurality of lock holes 35a to 35f in a peripheral wall 34 thereof. Peripheral wall 34 of lid 33
The receiving grooves 18 a to 18 on the outer peripheral surface side of the container mouth 12
f, each of which has an inner and outer diameter that can fit in the f, and is distributed at equal intervals on the peripheral wall 34 of the lid 33.
5f corresponds to the lock pins 26a to 26f distributed radially around the outer periphery of the container opening 12 at a ratio of 1: 1.

In the above embodiment, a pair of containers 12
The lid 33 and these lock devices are made of any one of metal, synthetic resin (including FRP), ceramic having excellent mechanical properties, heat resistance, corrosion resistance and the like, or a composite material thereof. Therefore, when assembling these parts (members), if the parts need to be fixed or fixed to each other, well-known welding means, welding means, adhesive means, bolting means, etc. are appropriately employed. By the way, these parts (members)
Is made of metal, the projecting member 13, the respective receiving groove forming members 14a to 14f, and the like are connected to the container opening 12 by well-known welding means.
And the pin holders 19a to 19f
Each of the receiving groove forming members 14a-1
Attach to 4f.

The container lid locking device of the above-described embodiment is shown in FIG.
3A, when in the locked state shown in FIG. 3A, the peripheral wall 34 of the lid 33 covered by the container mouth 12 is
8f, and the lock pins 26a to 26f inserted over the respective through holes 33 and the lock holes 35a to 35f that match each other lock the container 11 and the lid 33 with each other. The lid 33 does not come off the container mouth 12. When this locked state, the operating ring 29 clockwise to clockwise direction r ₁ is rotationally displaced, displaced in the elongated holes 30a is also the guide pins 31a~31f the direction of the arrow r ₃ in FIG. 1 in FIG. 1 (A) ３０30f are located on the inside end side.

In the locked state shown in FIGS. 1A and 3A, the operation ring 29 is rotated counterclockwise r _{2 in} FIG. 1A.
When rotated, the guide pins 31a to 31f
While displacing the inside of each of the long holes 30a to 30f from the inner end side to the outer end side, each of the lock pins 26a to 26f
Since guiding the direction of the arrow r ₄ of (A), these locking pins 26a~26f respective lock holes 35a~35f
Leave from inside. That is, the container 11 and the lid 33 are
(B), the lid 33 can be removed from the container opening 12 to enter the unlocked state of FIG.

Furthermore, FIG. 1 (B), the when rotating clockwise r ₁ shown in FIG. 1 (B) the operating ring 29 in the unlocked state of FIG. 3 (B), contrary to the above, each Each of the lock pins 2 is displaced from the outer end side to the inner end side of each of the guide holes 31a to 31f in the slots 30a to 30f.
Since the guiding direction of the arrow r ₃ in FIG. 1 (B) 6a~26f, each lock pin 26a~26f enters into the respective locking holes 35a to 35f. That is, the container 11 and the lid 33 are locked.

The container 11 provided with the lid 33 described above is used for a pressure vessel (high-pressure vessel) for sterilization and other purposes. Regarding the container 11 and the lid 33, the lock pins 26 a to 26 f on the container 11 and the lock holes 35 a to 3
It is convenient if a mark for aligning 5f is provided.

In the above-described embodiment, the protrusion 13
As shown in FIG. 3A, the lower ends of the lock pins 26a to 26f abut against the lower surfaces of the lock pins. In such an embodiment, when a force acts to remove the locked lid 33 from the container opening 12, the protrusion member 1
3 supports the distal ends of the lock pins 26a to 26f against the external force, so that the locked state of the lid 33 becomes more firm. From such a viewpoint, it can be said that the protruding member 13 is a desirable component, but is not an indispensable member. Like the respective receiving groove forming members 14a to 14f in the illustrated example, the projecting member 13 may be divided into a plurality of parts and attached to the container opening 12.

Each of the receiving groove forming members 14a to 14f may be formed by annularly connecting them, similarly to the projection member 13 in the illustrated example.

As is apparent from FIGS. 2 and 3, a seat plate 25 projecting outward from the lower ends of the plate members 20 of the pin holders 19a to 19f may be integrally formed. . Each of the pin holders 19a to 19f is composed of only the cylinder 21, and the cylinder 21 is provided with the respective receiving groove forming members 14a to 14f.
It may be the one attached to f. The pin holders 19a to 19f are attached to the receiving groove forming members 14a to 14f in any of the embodiments, so that they are substantially integral with the receiving groove forming members 14a to 14f.

In the embodiment described above, the operation ring 29
May have a circular and / or polygonal and / or irregular shape. Incidentally, in the case where a plurality of lock pins 26a to 26f are used, when a polygon is adopted as the outer shape and / or inner shape of the operation ring 29, the polygon has a number of lock pins 26a to 26f like a hexagon. It is desirable to correspond.
Each of the elongated holes 30a to 30f of the operation ring 29 may have a straight line shape or an arc shape as long as it intersects both a line segment along the radial direction and a line segment along the circumferential direction of the ring. It may be a curved shape.

Each guide pin 31 in the embodiment described above
a to 31f may be changed to the spring pins illustrated in FIG. As is well known, the spring pin is formed of a tubular body made of a spring material having vertically split slits, and exerts a large restoring force against radial deformation. When connecting the lock pins 26a to 26f and the operation ring 29 using the spring pins, the lock pins 26a
To 26f pin insertion hole 27 and each elongated hole 3 of operation ring 29
0a to 30f are 26a: 30a, 26b: 30b,
26c: 30c, 26d: 30d, 26e: 30e, 2
In a state where they coincide with each other at 1: 1 like 6f: 30f, spring pins are respectively mounted between them. Incidentally, interlocking of the lock pin 26a~26f and operating ring 29, the outer diameter D _1, the outer diameter when the spring pin is contracted deformation D _2, the spring pins length when the spring pin is not deformed of the L _1, pin d ₁ the diameter of the insertion hole 27, long hole 30a~30f pore width (minor diameter) d _2, the length of the pin insertion hole 27 (= locking pin diameter) of L ₂ Where D ₁ > d ₁ and D ₂ <d
₂ , it is maintained properly by satisfying conditions such as L ₁ ≦ L ₂ . In an embodiment using a spring pin, the vertical slit 23 of each of the pin holders 19a to 19f is
It may be a mere hole opened for mounting the spring pin.

In the above-described embodiment, the receiving groove forming member 1
4a to 14f, the pin holders 19a to 19f, the lock pins 26a to 26f, the guide pins 31a to 31f, etc., even if they are one set, the set of members, the operation ring 29, and the lock hole (one Is sufficient) to form a container lid lock device. However, in order to further secure the locked state of the lid 33, it is desirable to configure the container lid locking device by combining two or more sets of the above members, the operation ring 29, and the lock holes (plurality) of the lid 33.

In the above-described embodiment, for example, when operating the operation ring 29 by using the power of a motor capable of rotating forward and reverse, as shown in FIG. A rack 36 is mounted on one of the upper surface, the lower surface, and the peripheral surface of the gear 29, and a gear (pinion) 37 included in the power transmission system of the motor meshes with the rack 36. In addition, when the operation ring 29 is manually operated, a gripping member such as a handle or a knob is attached to an appropriate portion of the operation ring 29.

The predetermined number of lock holes 35a to 35f in the peripheral wall 34 of the lid 33 are formed slightly longer along the circumferential direction of the peripheral wall 34 in the illustrated example. Each lock hole 35a-35
When f has such a shape, each lock pin 2
Positioning difficulty when inserting 6a-26f in each lock hole 35a-35f is eased. Of course, each of the lock holes 35a to 35f is not limited to the above-described shape. For example, if each of the lock pins 26a to 26f can be fitted therein, a true circular hole (round hole),
Polygonal holes (square holes) and holes of other shapes (irregular holes) are also employed.

Next, an embodiment of the container lid locking device according to the present invention, which is illustrated in FIG. 5, will be described. In the case of the embodiment shown in FIG. 5, two operating rings 29 having the same configuration as those described above are provided on the outer periphery of the container opening 12 on the cylindrical body 21 of each of the pin holders 19a to 19f and on the cylindrical body 21.
Operation rings 2 which are respectively arranged below and are located on the upper level
9, each of the long holes 30a to 30f and each of the pin holders 19a to 19
f, a vertical slit 23, a pin insertion hole 27 of each of the lock pins 26a to 26f, and a long hole 30 of a lower operation ring 29.
Guide pins 31a to 31 penetrating through a to 30f, respectively
By f, these members are combined with each other.

In the embodiment shown in FIG. 5, since the two operating rings 29 are provided in this manner, the above-mentioned lateral slits 24 are omitted from the cylinder 21 of each of the pin holders 19a to 19f. In the embodiment of FIG. 5, the configuration of a portion of which description is omitted is substantially the same as or similar to the technical content of the embodiment described with reference to FIGS. 1 to 4.

In the embodiment shown in FIG. 5, one or both of the operation rings 29 are rotated forward and backward to lock and unlock the lid 33 covered by the container opening 12 in the same manner as described above. Can be.

In the embodiment shown in FIG. 5, when the two operation rings 29 are mutually connected by a partial connection means, they can be operated integrally.

In addition, in the embodiment shown in FIG. 5, the upper or lower operation ring 29 may be omitted, and in such an embodiment, the operation ring 29 is rotated forward and reverse, so that the container opening 12 is rotated. Can be locked or unlocked as described above.

[0041]

The container lid lock device according to the present invention has the following effects. [Effect 1] Since small parts such as the receiving groove, the pin holder and the lock pin, the operation ring and the guide pin corresponding to the peripheral wall having the lock hole (part of the lid) are concentratedly mounted without bulk on the outer periphery of the container mouth. In addition, the whole apparatus is small and simple.

[Effect 2] Since the main part of the apparatus is configured with specifications such as a receiving groove, a pin holder, a lock pin, an operation ring, a guide pin and the like with a small number of parts and a small number of parts, the cost of the apparatus can be reduced. .

[Effect 3] A guide pin for transmitting the rotation of the operation ring to the lock pin connects the two at a short distance, and furthermore, the lock pin and the guide pin are inside the apparatus and almost exposed to the outside. Not. Therefore, an accident that is likely to occur when the lock pin, the guide pin, and the like come into contact with another object can be avoided, and the safety is high.

[Effect 4] Locking and unlocking of the lid with respect to the container opening can be performed only by rotating the operation ring, so that operability is good.

[Brief description of the drawings]

FIG. 1 is an overall plan view schematically showing a locked state of a lid and a partial plan view schematically showing an unlocked state of a lid in an embodiment of a container lid locking device according to the present invention.

FIG. 2 is an exploded perspective view showing each part of the container lid lock device according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of a main part showing a locked state of the lid and a cross-sectional view of a main part showing an unlocked state of the lid in an embodiment of the container lid locking device according to the present invention.

FIG. 4 is a perspective view showing another example of a guide pin in the present invention.

FIG. 5 is a cross-sectional view of a main part showing a locked state of the lid and a main part showing an unlocked state of the lid in another embodiment of the container lid locking device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Container 12 Container mouth part 14a-14f Receiving-groove forming member 16 Outer wall of receiving groove 17 Through-hole for lock pin access 18a-18f Receiving groove 19a-19f Pin holder 22 Lock pin holding hole 26a-26f Lock pin 29 Operation ring 30a-30f Slot for guiding guide pin 31a-31f Guide pin 33 Lid 34 Peripheral wall of lid 35a-35f Lock hole

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-231262 (JP, A) JP-A-63-172062 (JP, A) JP-A-1-275965 (JP, A) JP-A 48-48 79315 (JP, A) JP-A-63-14082 (JP, A) JP-A-6-22661 (JP, U) JP-A-59-42364 (JP, U) JP-B-52-41881 (JP, B2) JP-B-58-9869 (JP, B2) JP-B-58-18549 (JP, B2) JP-B-59-9786 (JP, B2) JP-B-60-10225 (JP, B2) JP-B 5-56429 (JP, B2) Tokiko Hei 6-6392 (JP, B2) (58) Fields surveyed (Int. Cl. ⁶ , DB name) F16J 13/08 B65D 45/34

Claims (6)

(57) [Claims] 1. An apparatus for locking a cap-type lid over a mouth of a container, wherein an outer peripheral surface of the mouth of the container has a receiving groove for receiving a peripheral wall of the lid, and an outer wall of the receiving groove. And a pin holder having a holding hole for holding the lock pin is mounted on the outer wall surface of the receiving groove so that the through hole for locking pin access and the hole for holding the lock pin are provided. That the holding holes coincide with each other, and that the lock pin for allowing the lock pin to enter and exit the receiving groove through the lock pin access hole is inserted and held in the lock pin holding hole, and An operation ring for rotation operation having a slot on the plate surface for guiding a guide pin intersecting both the line segment along the radial direction and the line segment along the circumferential direction is fitted into the outer periphery of the container opening. Slot for guide pin guide and lock pin And the guide pin for connecting the operation ring and the lock pin is mounted over the elongated hole for guiding the guide pin and the lock pin, and a lock hole corresponding to the lock pin. Is formed on the peripheral wall of the lid. 2. A plurality of receiving grooves are distributed on an outer peripheral surface of a container mouth at intervals in a circumferential direction, and a pin holder is attached to an outer wall of each receiving groove, and a plurality of lock pins are used for holding a lock pin. The operation ring having a plurality of elongated holes for guiding the guide pins and the lock pins are held in the respective holding holes, and are interconnected with each other via the plurality of guide pins mounted over them. 2. The container lid lock device according to claim 1, wherein a plurality of lock holes detachably corresponding to the lock pin are formed in a peripheral wall of the lid. 3. The container according to claim 1, wherein one operating ring is interposed from the rear end side of the lock pin and the operating ring and the lock pin are connected to each other via a guide pin. Lid lock device. With wherein two of the operation ring is disposed at a position sandwiching the outer peripheral surface of the lock pin, the container closure of the operating ring and the lock pin and the claim 1 or 2, wherein are interlocking via the guide pin Locking device. 5. A with one of the operating ring is disposed on the upper side of the locking pin, the lid locking device of the operating ring and the lock pin and the claim 1 or 2, wherein are interlocking through the guide pin. 6. A with one of the operating ring is disposed on the lower side of the locking pin, the lid locking device of the operating ring and the lock pin and the claim 1 or 2, wherein are interlocking through the guide pin.