JP2018140814A - Safety cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety cap which comprises a falsification prevention function, obstructs lid opening operation by mischief of an infant, etc. and can prevent unexpected lid opening, without changing usability as the safety cap largely.SOLUTION: A safety cap B which is mounted to a mouth cylindrical portion 1 of a container body A comprises an inner cap C which is screwed to the mouth cylindrical portion 1 of the container body A, and a cover cap D which covers the outside of the inner cap C and is mounted to the inner cap C rotatably, in which the cover cap D has a sealing conductive member E which is broken and separated from the cover cap D by pushing from the upper side, and the broken and separated sealing conductive member E transmits rotating torque of the cover cap D to the inner cap C.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a safety cap that is attached to a mouth tube portion of a container body, and more particularly to a safety cap that has a function to prevent tampering and can prevent an infant from being opened due to mischief or the like.

Conventionally, in a screw cap that is screwed into a container body that contains contents, the cap can be screwed off from the mouth tube portion of the container body simply by rotating the cap in the opening direction. A safety cap having a child resistance function that prevents an unexpected opening due to such mischief is known.
This type of safety cap has a double structure consisting of a middle cap and a cover cap. When the lid is opened, the middle cap that is screwed with the container body does not rotate by simply turning the cover cap. A so-called push-and-turn type safety cap that can be opened by turning while pushing is known (see, for example, Patent Document 1).

  In addition, the cap has a side wall that can be elastically deformed inward and outward in the radial direction, and the cap side tooth portion engaged with the protrusion on the container body side by rotating the cap side wall while pushing the cap. A so-called side push type safety cap that can release the engagement and open the cap is also known (see, for example, Patent Document 2).

No. 58-956 microfilm Japanese Patent Laid-Open No. 51-24382

However, although the safety screw cap described in the above-mentioned Patent Document 1 can prevent an unexpected lid opening due to mischief of an infant or the like, it is necessary to turn the cover cap while pushing it into the container body when opening the lid. There is a problem that an extra force is required to open the lid, and it is impossible to determine whether the lid has been opened once.
Further, the safety cap described in Patent Document 2 does not require an extra force unlike the safety cap described in Patent Document 1, but there is a problem that it is impossible to determine whether the safety cap has been opened once, as in Patent Document 1. .

  An object of the present invention is to solve the above-mentioned problems, and has an anti-falsification function without greatly changing the usability as a safety cap, and prevents an opening operation due to mischief of an infant, etc. It aims at providing the safety cap which can prevent.

  In order to solve the above-described problems, the present invention provides a safety cap that is attached to a mouth tube portion of a container body as a safety cap, and the safety cap includes an inner cap screwed into the mouth tube portion of the container body. A cover cap that covers the outside of the inner cap and is rotatably attached to the inner cap. The cover cap has a sealing transmission member that is broken and separated from the cover cap by being pushed in from above. The separated sealing transmission member employs a configuration characterized in that the rotational torque of the cover cap is transmitted to the inner cap.

  As a specific embodiment of the safety cap, the inner cap has a top wall and a side peripheral wall suspended from the periphery of the top wall, and the cover cap has an outer peripheral wall that is in sliding contact with the outer periphery of the side peripheral wall of the inner cap. The sealing transmission member has a top plate connected inward from the upper end of the outer peripheral wall via a break bridge, and the top plate is engaged with the top wall of the inner cap after the break bridge breaks. The seal transmission member is formed with a contact projection formed outward from the top plate and a second contact formed on the engaging portion of the top plate. The inner cap has a boss portion that fits into the engaging portion of the top plate, and a first abutment rib that comes into contact with the second abutment rib when the top plate is fitted, The cap adopts a configuration characterized in that it has an abutting portion that comes into contact with the abutment convex portion of the top plate after the fracture of the fracture bridge. Further, the top plate protrudes in the radial direction from the peripheral edge, and is connected to the contact convex portion via the fracture bridge, the engaging portion suspended from the central lower surface, and the first formed in the radial direction from the engaging portion. A top wall of the inner cap, a boss portion erected at the center, an inner cylinder wall formed around the boss portion, and a first wall formed radially from the inner cylinder wall. The structure characterized by having 1 abutment rib is employ | adopted.

  Furthermore, as another embodiment of the cover cap, the cover cap extends from the upper end portion of the outer peripheral wall toward the periphery of the top plate, and the lower end portion has a contact ceiling wall that is in sliding contact with the top surface of the top wall of the inner cap. The cover cap employs a configuration characterized in that the cover cap includes a ratchet mechanism that meshes with the inner cap when the lid is rotated and rotates freely when the lid is rotated. The ratchet mechanism includes a ratchet tooth provided on the inner periphery of the upper edge of the inner cap, a deformable ratchet arm provided on the cover cap along the periphery of the top plate of the seal transmission member, and an outer side of the ratchet arm. The structure characterized by having the ratchet nail | claw formed in this is employ | adopted.

  The safety cap of the present invention adopts the above-described configuration, so that the seal transmission member is broken and separated by pushing the cover cap from above at the time of use, and the sealed transmission member separated by breakage reduces the rotational torque of the cover cap. In addition to preventing unintentional lid opening by preventing mischief of infants, etc., the cap can be opened once if the sealing transmission member is broken and separated. It is possible to easily determine whether it has been done.

In addition, the safety cap of the present invention can be delivered with the cover cap assembled to the inner cap by having a ratchet mechanism that meshes with the inner cap when the lid is rotated and rotates freely when the lid is rotated. The work of attaching the safety cap to the container body after filling the contents can be reduced.
Furthermore, when the ratchet mechanism is not provided, the safety cap of the present invention can reduce the opening area of the upper surface of the cover cap, and can improve the dust prevention function as the cover cap.

It is a figure which shows the state which mounted | wore the container main body with the safety cap which is Example 1 of this invention, (a) is a top view, (b) is a half sectional view. It is a figure which shows the state which mounted | wore the container main body with the safety cap which is Example 1 of this invention, (a) is X1-X1 arrow sectional drawing of FIG.1 (b), (b) is (a). It is Y1-Y1 arrow sectional drawing of. It is a figure which shows the inner cap of the safety cap which is Example 1 of this invention, (a) is a top view, (b) is a longitudinal cross-sectional view. It is a figure which shows the cover cap of the safety cap which is Example 1 of this invention, (a) is a longitudinal cross-sectional view, (b) is a bottom view. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the state which rotated the safety cap which is Example 1 of this invention to the opening direction and the closing direction, (a) is sectional drawing which shows a mode that a lid is closed when rotating to a closing direction (B) is a cross-sectional view showing a state in which the cover cap rotates idle when it is rotated in the opening direction. It is a figure which shows the state which pushed in the top plate of the safety cap which is Example 1 of this invention, and fractured | ruptured the fracture | rupture bridge, (a) is a top view, (b) is a longitudinal cross-sectional view. It is a top view which shows the state which opens the safety cap which is Example 1 of this invention from a container main body, (a) is the state which the contact part contacted the contact convex part, (b) is 2nd. The contact rib is in contact with the first contact rib. It is a figure which shows the state in the middle of opening the safety cap which is Example 1 of this invention from a container main body, (a) is a top view, (b) is a longitudinal cross-sectional view. It is a figure which shows the state which mounted | wore the container main body with the safety cap which is Example 2 of this invention, (a) is a top view, (b) is a half sectional view. It is a figure which shows the state which mounted | wore the container main body with the safety cap which is Example 2 of this invention, (a) is X2-X2 arrow sectional drawing of FIG.9 (b), (b) is (a). It is Y2-Y2 arrow sectional drawing of. It is a figure which shows the state which pushed in the top plate of the safety cap which is Example 2 of this invention, and fractured | ruptured the fracture | rupture bridge, (a) is a top view, (b) is a longitudinal cross-sectional view. It is a top view which shows the state which opens the safety cap which is Example 2 of this invention from a container main body, (a) is the state which the contact part contacted the contact convex part, (b) is 2nd. The contact rib is in contact with the first contact rib.

  Next, embodiments of the present invention will be described with reference to the drawings showing examples.

1 and 2, A is a synthetic resin container main body, B is a synthetic resin safety cap mounted on the container main body A, and the safety cap B has an inner cap C and an outer side of the inner cap C. The cover cap D is configured to cover and to be rotatably attached to the inner cap C.
In the following description, it is assumed that the upper direction is “upper” and the lower direction is “lower” in FIG.

  As shown in FIGS. 1B and 2B, the container main body A includes a cylindrical mouth tube portion 1, and a male screw portion 2 is screwed on the outer periphery of the mouth tube portion 1.

As shown in FIGS. 1, 2, and 3, the inner cap C includes a top wall 10 and a cylindrical side peripheral wall 20 depending from the periphery of the top wall 10.
The top wall 10 extends from the outer peripheral side inwardly from an upper wall 11, a step wall 12 higher than the upper wall 11, an inner cylindrical wall 13 suspended from the inner edge of the stepped wall 12, and a lower end portion of the inner cylindrical wall 13. The flange wall 14 and a columnar boss portion 15 erected from the inner edge of the flange wall 14 are configured.

On the lower surface of the top wall 10, there are a sealing cylinder part 16 that is in close contact with the inner periphery of the mouthpiece part 1 of the container main body A, and a contact ring 17 that is in contact with the upper end surface of the mouthpiece part 1 outside the sealing cylinder part 16. Is formed.
A first abutting rib 18 is formed on the inner cylinder wall 13 in the radial direction, and a first locking ridge 19 is formed on the outer periphery of the boss portion 15.

On the inner periphery of the side peripheral wall 20, a female screw portion 21 that is screwed with a male screw portion 2 that is screwed into the mouth tube portion 1 of the container body A is screwed.
A ring wall 22 is erected on the upper part of the side peripheral wall 20, and four ratchet teeth 23 are provided at equal intervals on the inner periphery of the ring wall 22 (upper edge inner periphery of the inner cap C).
In this embodiment, four ratchet teeth 23 are provided, but any number of ratchet teeth 23 may be used as long as they are provided at equal intervals.
Further, a ring-shaped retaining protrusion 24 is provided at the lower outer periphery of the side peripheral wall 20.

As shown in FIGS. 1, 2, and 4, the cover cap D is formed on a cylindrical outer peripheral wall 30 that is in sliding contact with the outer periphery of the side peripheral wall 20 of the inner cap C, and on the inner side (top surface) of the upper end of the outer peripheral wall 30. The sealing transmission member E is provided and covers the top of the top wall 10 of the inner cap C.
A fitting groove 31 that fits with the retaining protrusion 24 of the inner cap C is formed at the lower part of the inner periphery of the outer peripheral wall 30.
The outer peripheral wall 30 has four arcuate projecting top walls 32 formed at equal intervals in a plan view from the upper end to the inside.

Both end portions of the overhanging ceiling wall 32 extend in the radial direction, and can be deformed in the radial direction between the adjacent overhanging ceiling walls 32 along the periphery of the top plate 40 of the sealing transmission member E described later. Ratchet arm portions 34 are formed in four arcs in plan view.
The ratchet arm portion 34 is suspended so that both end portions thereof are contact portions 33 and the lower end portion is in contact with the upper surface of the upper wall 11 of the inner cap C.
Ratchet claws 35 that mesh with the ratchet teeth 23 of the inner cap C are formed on the outer sides of the four ratchet arm portions 34, respectively.
A rupture bridge 36 is provided at the center on the inner peripheral side of the overhanging ceiling wall 32 so as to connect the sealing transmission member E so that the sealing transmission member E can be broken, and one of the two ends of the overhanging ceiling wall 32 has the ring wall 22 of the inner cap C. A reinforcing rib 37 that contacts the upper end surface is suspended.

  The sealing transmission member E includes a disk-shaped top plate 40, a contact protrusion 41 that protrudes in a radial direction from four peripheral edges of the top plate 40, and is connected to each other via a break bridge 36, and a center of the top plate 40. A cylindrical engaging portion 42 suspended from the lower surface, a second abutment rib 43 formed radially from the outer periphery of the engaging portion 42, and a second formed at the lower inner periphery of the engaging portion 42. A locking protrusion 44 is provided.

Next, usage modes and operational effects of the present embodiment will be described with reference to the drawings.
First, in the safety cap B of this embodiment, the inner cap C and the cover cap D are separately manufactured by injection molding or the like. As shown in FIGS. When plugged so as to cover, the fitting groove portion 31 formed in the inner peripheral lower portion of the outer peripheral wall 30 of the cover cap D gets over the retaining protrusion 24 of the side peripheral wall 20 of the inner cap C, and the retaining protrusion 24 is The fitting operation of the safety cap B is completed by fitting in the fitting groove 31.
Thus, since the safety cap B of the present embodiment can be delivered with the cover cap D assembled to the inner cap C, the mounting work of the safety cap B on the container body A after filling the contents can be performed. Can be reduced.

  Next, in order to attach the safety cap B to the mouth tube portion 1 of the container main body A filled with the contents, as shown in FIG. The ratchet pawl 35 of the cover cap D meshes with the ratchet teeth 23 of the inner cap C, and the female thread portion 21 screwed on the inner periphery of the side peripheral wall 20 of the inner cap C and the container body A The external thread part 2 screwed on the outer periphery of the mouth tube part 1 is screwed together to close the lid, and the mounting operation is completed.

  After attaching the safety cap B, an infant or the like tries to open the safety cap B from the mouth tube portion 1 of the container body A, and the outer peripheral wall 30 of the cover cap D is opened in the direction of the arrow (opened) as shown in FIG. When the cover cap D is rotated in the direction of the lid, the ratchet arm portion 34 on which the ratchet pawl 35 is formed is deformed inward, so that the ratchet pawl 35 rides on the ratchet teeth 23 provided on the inner cap C. The cap D cannot rotate the inner cap C only by spinning around the inner cap C, and can prevent the safety cap B from being opened.

  Next, in order to use the container body A filled with the contents, first, as shown in FIG. 6, the top plate 40 of the seal transmission member E is pushed from the upper part of the cover cap D with fingers. The break transmission bridge 36 is broken, the sealing transmission member E is lowered, the lower surface of the top plate 40 is brought into contact with the upper surface of the step wall 12, and the second locking protrusion 44 of the engaging portion 42 of the sealing transmission member E is Then, the first locking protrusion 19 of the boss portion 15 formed on the top wall 10 of the inner cap C is overcome, and the engaging portion 42 of the sealing transmission member E is fitted to the boss portion 15 of the inner cap C.

  In the safety cap B of the present embodiment, in the unopened state, the sealing transmission member E of the cover cap D is connected to the protruding ceiling wall 32 of the outer peripheral wall 30 by the breaking bridge 36, and the lid is opened from the unopened state. Needs to push in the top plate 40 of the sealing transmission member E of the cover cap D, and the sealing transmission member E is pushed in from the cover cap D even if the safety cap B is closed again as shown in FIG. Since it is in a state, it can be easily visually confirmed that it has been opened and closed illegally.

Thereafter, as shown in FIG. 7A, when the outer peripheral wall 30 of the cover cap D is rotated in the direction of the arrow, the contact portion 33 comes into contact with the contact convex portion 41 of the sealing transmission member E, and the top plate 40 is When the outer peripheral wall 30 is further rotated in the direction of the arrow as shown in FIG. 7B, the second abutment rib 43 of the seal transmission member E is moved to the inner side. The rotational torque of the cover cap D can be transmitted to the inner cap C by contacting the first contact rib 18 of the cap C.
Then, as shown in FIG. 8, the female screw portion 21 screwed on the inner periphery of the side peripheral wall 20 of the inner cap C is screwed off from the male screw portion 2 screwed on the mouth tube portion 1 of the container body A, so that safety is achieved. The cap B can be opened, and the contents accommodated in the container main body A can be discharged from the mouthpiece portion 1.

After the contents contained in the container main body A are used, when the finger is put on the outer periphery of the outer peripheral wall 30 of the cover cap D and rotated in the direction opposite to that when the safety cap B is opened, the contact portion 33 is moved. When the abutment convex portion 41 of the sealing transmission member E comes into contact with the top plate 40, the top plate 40 rotates around the boss portion 15 of the inner cap C and further rotates the outer peripheral wall 30. The two contact ribs 43 come into contact with the first contact rib 18 of the inner cap C, and the rotational torque of the cover cap D can be transmitted to the inner cap C.
As a result, the female screw portion 21 screwed on the inner periphery of the side peripheral wall 20 of the inner cap C and the male screw portion 2 screwed on the outer periphery of the mouth tube portion 1 of the container body A are screwed together and closed. The inside of the mouth tube portion 1 can be sealed.

Next, a second embodiment in which the ratchet mechanism is removed from the inner cap and the cover cap of the first embodiment will be described.
In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and differences will be mainly described.

  As shown in FIGS. 9 and 10, A is a container main body, Ba is a safety cap attached to the container main body A, and the safety cap Ba covers the inner cap Ca and the outer side of the inner cap Ca. It is comprised from the cover cap Da attached rotatably with respect to Ca.

The inner cap Ca includes a top wall 10 and a cylindrical side peripheral wall 20 suspended from the periphery of the top wall 10, and the top wall 10 has an upper wall 11 and an upper wall 11 inward from the outer peripheral side. A higher step wall 12, an inner cylinder wall 13 suspended from the inner edge of the step wall 12, a flange wall 14 extending from the lower end of the inner cylinder wall 13, and a columnar shape erected from the inner edge of the flange wall 14 The boss part 15 is comprised.
A first abutting rib 18 is formed on the inner cylinder wall 13 in the radial direction, and a first locking ridge 19 is formed on the outer periphery of the boss portion 15.
Further, a ring-shaped retaining protrusion 24 is provided at the lower outer periphery of the side peripheral wall 20.

The cover cap Da includes a cylindrical outer peripheral wall 30 that is in sliding contact with the outer periphery of the side peripheral wall 20 of the inner cap Ca, and a sealing transmission member E that is provided inside the upper end of the outer peripheral wall 30 and covers the upper portion of the inner cap Ca. Has been.
A fitting groove 31 is formed in the lower part of the inner circumferential surface of the outer circumferential wall 30 to fit the retaining protrusion 24 of the inner cap Ca.
The outer peripheral wall 30 has four arcuate projecting top walls 32 formed at equal intervals in a plan view from the upper end to the inside, and both sides of the projecting top wall 32 are radially directed toward the top plate 40. Four arcuate contact ceiling walls 50 are formed in the extended plan view, and the lower end portion extended from the contact ceiling wall 50 is in contact with the upper surface of the upper wall 11 of the inner cap Ca.
Contact portions 51 are formed on both sides of the contact ceiling wall 50.

Next, usage modes and operational effects of the present embodiment will be described with reference to the drawings.
First, in the safety cap Ba of this embodiment, the inner cap Ca and the cover cap Da are separately manufactured by injection molding or the like.
Next, in order to attach the safety cap Ba to the mouth tube portion 1 of the container body A filled with the contents, first, when the inner cap Ca is rotated in the closing direction, the inner side of the side peripheral wall 20 of the inner cap Ca is increased. The female screw portion 21 screwed around the periphery and the male screw portion 2 screwed around the outer periphery of the mouth tube portion 1 of the container body A are screwed together to close the lid.
Next, as shown in FIGS. 9 and 10, when the cover cap Da is plugged over the inner cap Ca, the fitting groove portion 31 formed in the inner peripheral lower portion of the outer peripheral wall 30 of the cover cap Da is Then, over the retaining protrusion 24 on the side peripheral wall 20 of the inner cap Ca, the retaining protrusion 24 is fitted into the fitting groove 31, and the mounting operation of the safety cap Ba is completed.

  After the safety cap Ba is attached, when an infant or the like tries to open the safety cap Ba from the mouth tube portion 1 of the container body A and rotates the outer peripheral wall 30 of the cover cap Da in the opening direction, the cover cap Da The inner cap Ca cannot be rotated simply by spinning around the cap Ca, and the opening of the safety cap Ba can be prevented.

Next, in order to use the container main body A filled with the contents, first, as shown in FIG. 11, the top plate 40 of the sealing transmission member E is pushed from the upper part of the cover cap Da with four fingers. The break transmission bridge 36 is broken, the sealing transmission member E is lowered, the lower surface of the top plate 40 comes into contact with the upper surface of the step wall 12, and the engaging portion 42 of the sealing transmission member E is attached to the boss portion 15 of the inner cap Ca. Fit.
Thereafter, as shown in FIG. 12A, when the outer peripheral wall 30 of the cover cap Da is rotated in the direction of the arrow, the contact portion 51 comes into contact with the contact convex portion 41 of the sealing transmission member E, and the top plate 40 is moved. When the outer peripheral wall 30 is further rotated in the direction of the arrow as shown in FIG. 12 (b) by rotating around the boss 15 of the inner cap Ca, the second contact rib 43 of the sealing transmission member E becomes the inner cap. The first abutment rib 18 of Ca can be contacted and the rotational torque of the cover cap Da can be transmitted to the inner cap Ca, and a female screw portion 21 screwed on the inner periphery of the side peripheral wall 20 of the inner cap Ca is a container body. The safety cap Ba can be opened by unscrewing from the male screw part 2 screwed to the mouth tube part 1 of A, and the contents accommodated in the container body A can be discharged from the mouth tube part 1. .

In this embodiment, in order to deliver the inner cap Ca and the cover cap Da separately, it is necessary to screw the inner cap Ca into the container main body A and plug the cover cap Da after filling the contents. Compared to the first embodiment, since the ratchet mechanism is not provided, the opening area of the upper surface of the cover cap Da can be reduced, and the dust prevention function as the cover cap Da can be enhanced.
Further, when the projecting dimension of the contact ceiling wall 50 of the present embodiment is made equal to that of the ratchet arm portion 34 of the first embodiment, the top plate of the sealing transmission member E is compared with the first embodiment. The area of 40 can be widened, and it can be easily pushed with a finger.

In use, the safety cap of the present invention breaks and separates the sealing transmission member by pushing the cover cap from above, and the sealing transmission member separated by breaking can transmit the rotational torque of the cover cap to the inner cap. In addition to having a prevention function, it is possible to prevent an opening operation by an infant or the like and prevent an unexpected opening operation.
In particular, it is suitable as a safety cap for a container body filled with contents that require handling.

A Container body B, Ba Safety cap C, Ca Inner cap D, Da Cover cap E Sealing transmission member 1 Mouth part 2 Male thread part 10 Top wall 11 Upper wall 12 Step wall 13 Inner cylinder wall 14 Flange wall 15 Boss part 16 Dense Envelope part 17 Contact ring 18 1st contact rib 19 1st latching protrusion 20 Side peripheral wall 21 Female thread part 22 Ring wall 23 Ratchet tooth (ratchet mechanism)
24 Retaining ridge 30 Outer peripheral wall 31 Fitting groove 32 Overhanging ceiling walls 33, 51 Abutment 34 Ratchet arm 35 Ratchet claw (Ratchet mechanism)
36 Breaking Bridge 37 Reinforcing Rib 40 Top Plate 41 Abutting Protrusion 42 Engaging Part 43 Second Abutting Rib 44 Second Locking Rib 50 Abutting Ceiling Wall

Claims (7)

A safety cap attached to the mouth tube portion of the container body,
The safety cap includes an inner cap that is screwed into the mouth tube portion of the container body, a cover cap that covers the outside of the inner cap and is rotatably attached to the inner cap.
The cover cap has a sealing transmission member that is broken and separated from the cover cap by being pushed in from above.
The sealing transmission member separated by breaking transmits a rotational torque of the cover cap to the inner cap. The inner cap has a top wall and a side peripheral wall depending from the periphery of the top wall,
The cover cap has an outer peripheral wall that is in sliding contact with the outer periphery of the side peripheral wall of the inner cap,
The seal transmission member has a top plate connected inward from the upper end of the outer peripheral wall via a break bridge,
2. The safety cap according to claim 1, wherein the top plate has an engaging portion that engages with a top wall of the inner cap after the breaking bridge is broken. The seal transmission member has an abutment convex portion formed outward from the top plate, and a second abutment rib formed on the engaging portion of the top plate,
The inner cap has a boss portion that fits with the engaging portion of the top plate, and a first contact rib that comes into contact with the second contact rib when the top plate is fitted,
The safety cap according to claim 2, wherein the cover cap has an abutting portion that comes into contact with the abutting convex portion of the top plate after the fracture of the fracture bridge. The top plate protrudes in the radial direction from the peripheral edge, and is connected to the contact convex portion via the breaking bridge, the engaging portion suspended from the center lower surface, and the second contact formed in the radial direction from the engaging portion. A contact rib,
The top wall of the inner cap has a boss portion erected at the center, an inner cylindrical wall formed around the boss portion, and a first abutment rib formed radially from the inner cylindrical wall. The safety cap according to claim 3, wherein the safety cap is characterized.   The cover cap extends from the upper end portion of the outer peripheral wall toward the periphery of the top plate, and the lower end portion has an abutting ceiling wall that is in sliding contact with the top surface of the top wall of the inner cap. A safety cap according to any of the above.   The safety cap according to any one of claims 1 to 4, wherein the cover cap includes a ratchet mechanism that meshes with the inner cap when the lid is rotated and rotates freely when the lid is rotated.   The ratchet mechanism includes a ratchet tooth provided on the inner periphery of the upper edge of the inner cap, a deformable ratchet arm provided on the cover cap along the periphery of the top plate of the seal transmission member, and an outer side of the ratchet arm. The safety cap according to claim 6, further comprising a ratchet pawl formed on the outer surface.

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