JP4000577B2 - Clip with drop prevention mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a clip prevention mechanism that prevents a connection pipe from being released unless a tool is used in a clip that clamps flanges to prevent a connection pipe from coming off.
[0002]
[Prior art]
Recently, when connecting a connecting pipe to a counterpart member, a one-touch connection using a clip 1 as shown in FIG. 5 has been performed. This clip 1 is formed by bending a single band-shaped metal member and providing two opposing clamping pieces 1a and 1b, one side of the two clamping pieces 1a and 1b being connected, and the other side Is the free end. In addition, a tube insertion portion 2 is formed at the center of the clip 1, the free end side is an opening 3 for attachment to the connection portion of the tube, and both the sandwiching pieces 1a and 1b have Long windows 4 and 5 are formed. And it has elasticity as a whole. When this clip 1 is used, it is necessary to provide flanges 8 and 9 facing the connecting pipe 6 and the counterpart member 7 as shown in FIG. And first, as shown in the figure, the front-end | tip part 10 of the connecting pipe 6 is fitted in the other party member 7, and the flanges 8 and 9 of both members are joined. In addition, the seal | sticker between both is performed by the O-ring 11 externally fitted by the front-end | tip part 10 of the connecting pipe 6. FIG.
[0003]
Next, the clip 1 is prepared and, as shown in FIG. 7, is externally attached to the joint portion between the flanges 8 and 9 through the opening 3 thereof. As a result, a part of the flanges 8 and 9 protrudes from the long windows 4 and 5 of the clip 1 to prevent the connecting pipe 6 from coming off.
[0004]
However, the clip 1 has a drawback that when the external force is applied from the left side direction (the direction of the opening 3) in the state shown in FIG. If such a drop occurs, the connecting pipe 6 comes off from the counterpart member 7 and the fluid leaks. Therefore, as shown in FIG. 8, the present applicant has developed the technique of the retaining cover 12 for the clip 1 disclosed in Japanese Patent Application Laid-Open No. 8-28770. The retaining cover 12 according to the prior application technique covers and protects the opening ends 3a and 3b of the clip 1 and is joined to the outer peripheral surfaces of the opening ends 3a and 3b of the clip 1 to expand the cover. It has the expansion prevention walls 14 and 15 which prevent opening, and the contact part 16 contact | abutted to the outer peripheral surface of the flanges 8 and 9. Accordingly, the opening ends 3a and 3b of the clip 1 are not opened by the retaining cover 12, and the clip 1 can be prevented from falling off.
[0005]
[Problems to be solved by the invention]
However, the retaining cover 12 according to the prior application technique can be easily removed by pushing it upward. Therefore, when a washbasin or the like installed at a public site is wall-mounted and attached to the clip 1 of the pipe connection portion where the water supply / drainage pipe is exposed, the elderly with dementia, mischief of the child, etc. Therefore, there is a drawback that the retaining cover 12 may be removed and the clip 1 may be removed.
[0006]
[Means for Solving the Problems]
The present invention is obtained by improving and removing the above in view of the above-described problems, and provides a retaining mechanism in which a clip cannot be removed unless a tool is used.
[0007]
And Thus, the hand stages present invention in order to solve the above problems has been adopted, one side of the two clamping pieces are connected to opposite, other side is a free end, abutting end faces of the two members in the clamping piece The clip that is clamped in a state where the flanges formed on the part are joined is provided with a lock part that is attached to the free end and connects both the clamping pieces, and the lock part is operated by a tool when releasing the connection. A lock release portion is formed, and the lock portion includes a closing plate attached to the free end side of one sandwiching piece and an elastic folded piece at the tip thereof, and an elastic folded portion attached to the free end side of the other sandwiching piece. It consists of a storage box piece, the unlocking unit has a insertion opening of the tool provided in the storage box, omission, characterized in that the resilient folded piece in storage boxes are those that can be compression operation It is a clip with a locking mechanism. The free end side of the clip is prevented from being pulled out by the lock portion after mounting. In addition, the lock portion is a mechanism that cannot be unlocked unless a tool is used, and cannot be removed by mischief of a child or the like with bare hands.
[0008]
The present invention uses a tool after inserting an elastic folded piece of a closing plate attached to the free end side of one holding piece into a storage box attached to be opened and closed on the free end side of the other holding piece. This is a mechanism that cannot be unlocked without it, and cannot be removed by a child's mischief with bare hands.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the present invention will be described below based on the embodiment of the invention shown in the drawings. In addition, the same code | symbol as the conventional case is the same member. FIG. 1 shows a clip 17 with a slip prevention mechanism according to a first embodiment of the present invention. FIG. 1 (A) is a partial sectional plan view of the clip 17, FIG. 1 (B) is a side view, FIG. (C) is a perspective view. The basic structure of the main portion of the clip 17 is the same as the conventional one shown in FIGS. Thus, on the free end side of the clip 17, there is provided a lock portion 18 for connecting both the clamping pieces 1 a and 1 b, and the lock portion 18 is operated by a tool 19 such as a screwdriver when separated. An unlocking portion 20 is formed.
[0012]
The locking portion 18 includes a closing plate 22 attached to a free end side of one holding piece 1a via a hinge 21 and an elastic folded piece 23 at the tip thereof, and a free end side of the other holding piece 1b. It comprises a storage box 24 of attached elastic folded pieces 23. The unlocking unit 20 has an insertion port 25 for the tool 19 provided in the storage box 24 so that the elastic folding piece 23 in the storage box 24 can be compressed. A slit 26 for taking in and out the elastic folded piece 23 is formed at a position where the elastic folded piece 23 of the storage box 24 is engaged.
[0013]
Next, a case where the clip 17 configured as described above is locked and a case where the lock is released will be described. In the case of locking, the closing plate 22 in the opened state (not shown ) in FIG. 1A is rotated around the hinge 21 toward the storage box 24, and the elastic folded piece 23 at the tip is slit. 26 to push into the storage box 24 for storage. At this time, the elastic folded piece 23 starts to enter the slit 26 from the V-shaped lower end, and passes through the slit 26 in a state where the folded piece 23 is compressed. Then, in a state where it completely enters the storage box 24, the piece 23 is folded back by its own elastic force (the state shown in FIG. 1A) and does not come out of the storage box 24. That is, the closing plate 22 connects the both sandwiching pieces 1a and 1b of the clip 17 to a locked state.
[0014]
For unlocking, as shown in FIG. 3C, a tool 19 such as a screwdriver is inserted from the insertion port 25 of the storage box 24 and the elastic folded piece 23 is compressed until it can pass through the slit 26, and in this state, the closing plate 22 is compressed. May be rotated in the clockwise direction in FIG. As described above, since the lock state of the clip 17 by the lock portion 18 is not released unless the elastic folding piece 23 in the storage box 24 is compressed, the clip 17 should never be removed by a prank of a child or the like with bare hands. Is impossible.
[0015]
FIG. 2 shows a clip 27 according to the second embodiment of the present invention. The clip 27 is a storage box provided as a separate member capable of separating the closing plate 22 from the main body of the clip 27 and inserted from the opening 28 provided on the free end side of the holding piece 1a and provided on the free end side of the other holding piece 1b. It can be stored in 24. In this case, the positions of the slit 26 and the insertion port 25 of the tool 19 such as a screwdriver are slightly different from those of the first embodiment, but the elastic folded piece 23 provided on the closing plate 22 and The locking using the storage box 24 and the unlocking using the tool 19 such as a screwdriver are the same as in the case of the first embodiment.
[0016]
FIG. 3 shows a clip 29 according to a third embodiment outside the present invention, in which FIG. (A) is a partially sectional plan view, FIG. (B) is a partially enlarged view thereof, and FIG. It is a left side view. As shown in the figure, the lock portion 18 of the clip 29 has a screw member 30 attached over the free end sides of the two sandwiching pieces 1a and 1b, and the other sandwiching piece 1b includes An elastic claw piece 31 that is screwed into the screw member 30 and is inclined toward the screwing side is provided.
[0017]
To lock the connection between the free end sides of the sandwiching pieces 1a and 1b, the screw member 30 may be simply pushed and tightened. At this time, the elastic claw piece 31 can be overcome by elastically deforming the screw thread of the screw member 30. Therefore, it is not necessary to turn the screw member 30 using the tool 19 or the like at the time of locking. On the other hand, the lock must be released by turning the screw member 30 using a tool 19 such as a screwdriver. This is because the elastic claw piece 31 engages with the screw thread and prevents its movement in the direction in which the screw member 30 is removed (the right direction in the drawings (A) and (B)). Therefore, even in the case of this clip 29, it is impossible to release the lock only by mischief of a child or the like with bare hands.
[0018]
4A and 4B show a retaining mechanism according to a fourth embodiment outside the present invention. FIG. 4A is a front view showing upper and lower cover members 32 and 33, and FIG. It is a longitudinal cross-sectional side view of the state made. The lock portion 18 in the retaining mechanism includes upper and lower cover members 32 and 33 engaged from above and below and upper and lower cover members 32 and 33 so as not to open on the free ends of the two sandwiching pieces 1a and 1b. It comprises an elastic locking claw 34 to be connected and a locking port 35 for the elastic locking claw 34. The lock release unit 20 has an insertion port 36 for a tool 29 provided on the lower end side of the upper cover member 32.
[0019]
In the case of locking, the cover members 32 and 33 are overlapped and fitted from the upper and lower directions so as not to open the free end sides of the sandwiching pieces 1a and 1b of the clip 1, and the elastic member provided on the lower cover member 33 What is necessary is just to engage the nail | claw piece 34 with the latching opening 35 provided in the cover member 32 of the upper side. In this locked state, even if the cover members 32 and 33 are pulled up and down, they are not separated. When releasing the lock, a tool 19 such as a screwdriver is inserted from the insertion port 36 and the elastic locking claw 34 is pushed to release the engagement with the locking port 35. Then, the cover members 32 and 33 are moved in the vertical direction. Pull it to separate. Note that the upper and lower cover members 32 and 33 have a function of preventing the tip of the clip 1 from expanding and the edge of the tip and the human body, as in the case of the conventional retaining cover 12 shown in FIG. And a function to realize direct contact prevention.
[0020]
By the way, this invention is not limited to the Example mentioned above, A suitable change is possible. For example, the other party to be connected may be a connecting pipe. As a specific application site of the present invention, connection of hot water and a water conduit in a cabinet of a single lever faucet such as a kitchen can be considered.
[0021]
【The invention's effect】
As described above, the clip with the slip-off preventing mechanism of the present invention is such that the flanges formed on the butted end surfaces of the two members are connected to one side of the two opposing clamping pieces and the other side is a free end. The clip that clamps in a joined state is provided with a lock part that is attached to the free end side and connects both the clamping pieces, and the lock part forms a lock release part that is operated by a tool when releasing the connection. Has been. Accordingly, the free end side of the clip is prevented from being pulled out by the lock portion after being attached to the connecting portion between the flanges. This lock portion is a mechanism that cannot be unlocked without using a tool, and cannot be removed by mischief of a child or the like with bare hands. In other words, in a public place or in a facility where a demented elderly person or the like is present, it is possible to perform construction in which the flanges are connected by a one-touch method using a clip.
[Brief description of the drawings]
FIG. 1 shows a clip with a slip prevention mechanism according to a first embodiment of the present invention, in which FIG. (A) is a partially sectional plan view of the clip, FIG. (B) is a side view, and FIG. ) Is a perspective view.
FIG. 2 is a partially sectional plan view showing a clip according to a second embodiment of the present invention.
FIGS. 3A and 3B show a clip according to a third embodiment outside the present invention. FIG. 3A is a partially sectional plan view, FIG. 3B is a partially enlarged view, and FIG. FIG.
FIGS. 4A and 4B show a retaining mechanism according to a fourth embodiment outside the present invention. FIG. 4A is a front view showing upper and lower cover members, and FIG. It is a surface side view.
FIG. 5 is a perspective view showing a clip for pipe connection.
FIG. 6 is a side view showing a connection procedure between a connecting pipe and a counterpart member.
FIG. 7 is a perspective view showing a conventional tube connection structure using a clip.
FIG. 8 is a perspective view showing a clip removal prevention mechanism according to the prior application.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1a, 1b ... Holding piece 2 ... Pipe insertion part 8 ... Connecting pipe flange 9 ... Counterpart member flange 17 ... Clip 18 ... Locking part 19 ... Tool such as a screwdriver 20 ... Unlocking part 21 ... Hinge 22 ... Closure plate 23 ... elastic folding piece 24 ... storage box 25 ... tool insertion slot 27 ... clip 29 ... clip 30 ... screw member 31 ... elastic claw piece 32 ... upper cover member 33 ... lower cover member 34 ... elastic locking claw 35 ... locking port 36 ... Tool insertion slot

Claims (1)

A clip that is clamped in a state where one side of two opposing clamping pieces are connected and the other side is a free end and the flanges formed on the butted end surfaces of the two members are joined by the clamping piece is attached to the free end side. And a lock portion for connecting both the clamping pieces, wherein the lock portion is formed with a lock release portion that is operated by a tool when releasing the connection, and the lock portion is on the free end side of one of the clamping pieces. And a storage box of elastic folded pieces attached to the free end side of the other clamping piece, and the unlocking portion of the tool provided in the storage box A clip with a slip prevention mechanism, characterized in that it has an insertion slot and is capable of compressing an elastic folded piece in a storage box .

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