JPH0625522Y2 - Embedded plug - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is designed so that, for example, a plate material or the like is firmly attached to a concrete wall surface or the like, and is not inserted into an embedding hole formed in the wall surface or the like. The invention relates to an improvement of an embedded plug which is inserted and used in the expanded state.

(Prior Art) A wide variety of plugs for embedding have been provided, and the following plugs are well known.

That is, the embedded plug body made of hard plastic or metal with the upper opening opened is provided with a slit for expanding downward with an appropriate interval from the upper end portion thereof, and the outer peripheral surface is provided with uneven strips, protruding pieces, etc. After the insertion plug is inserted into an embedding hole formed in a wall surface or the like, a screw member or the like is screwed or press-fitted from the upper opening of the embedding plug to insert the plug. The slit portion is expanded and deformed, and the engaging portion is tightly press-fitted to the inner surface of the embedding hole to insert the plug into the embedding hole in a non-pulled state.

(Problems to be solved by the invention) However, in the case of the embedded plug configured as described above,
For example, when vibration due to an earthquake, vibration due to construction, etc. is transmitted to the facility part of the plug, the vibration is directly received and the inner surface of the embedding hole of the plug and the outer surface of the plug violently rub against each other. Since a crack is generated in the plug and the plug is also damaged, the tight engagement state between the plug and the plug is broken, and the plug is loosened and often comes out of the embedding hole. When the plug thus embedded is removed from the embedding hole, there is a problem that the plate material and other attachments attached to the wall surface or the like via the plug are detached from the wall surface or the like.

The present invention was researched and developed to solve the above problems, and even if vibration due to an earthquake, vibration due to construction, etc. is transmitted to the facility part of the embedded plug, it is reliably absorbed and mitigated. It is an object of the present invention to provide an embedded plug capable of maintaining a close engagement state of the plug with the insertion hole.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the present invention, an embedded plug body having a slit for expansion and having an upper opening is provided with an elastic member for vibration absorption having an upper opening. We developed and adopted an embedded plug that was closely fitted.

(Operation) The embedded plug configured as described above is inserted into, for example, an embedded hole formed in a wall surface or the like, and an attachment such as a plate material is applied to the portion, and the attachment is attached in accordance with a conventional method. When a screw member or the like having a head portion is screwed or press-fitted from the upper opening portion of the plug provided through the hole, the plug body is expanded and deformed from the slit portion, and at the same time, the elastic member closely fitted to the plug is also deformed. Since it is expanded and deformed and its outer peripheral surface is tightly crimped to the embedding hole, the plug is inserted into the embedding hole through the elastic member in a non-pulled state, and the attachment is securely attached to the wall surface. Can be worn. In this state, for example, even if an earthquake occurs and the vibration is transmitted to the facility part of the plug, the vibration is reliably absorbed and mitigated by the elastic member, so the inner surface of the embedding hole is cracked or the plug body is damaged. Has the effect of effectively preventing
It acts to securely maintain the tightly inserted state of the plug in the embedding hole.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings, in which reference numeral 1 denotes an embedded plug body made of hard plastic, which is provided with an opening 2 at an upper portion thereof. Zigzag expanding slits 3 are provided in the front and rear by dividing the position from a slightly lower position to the lower end in a zigzag shape, and an engaging portion 4 formed of an uneven surface is provided on the outer peripheral surface, and is illustrated. Although not provided, the inner peripheral surface is provided with removal preventing means such as a female screw or an uneven surface so that the screw member will not be accidentally removed when the screw member described later is screwed or press-fitted. Reference numeral 5 denotes an elastic member for vibration absorption, which is made of rubber or plastic having elasticity and which is tightly fitted to the embedded plug body 1. In this embodiment, a bottomed tubular body having an opening 6 is provided above. Is formed by providing a flange 7 on the outer peripheral edge of the opening 6, and the embedded plug body 1 is closely fitted by the elastic member 5 thus formed to form an embedded plug. It is a thing.

As the fitting means, the molded elastic member 5 is used.
The plug main body 1 is press-fitted from the upper opening 6 of the plug or the plug main body 1 is sealed at the same time when the elastic member 5 is molded. According to the latter means, the plug main body 1 Since the concavo-convex surface of the engaging portion 4 provided on the outer peripheral surface is fitted onto the inner surface of the elastic member 5 exactly,
The fitting strength of the plug body 1 can be kept good.

Next, according to the embodiment configured as described above, one use state thereof will be described with reference to FIG. 3. In FIG. 3, A indicates a tank for breeding goldfish and the like, and B indicates an installation table. , An embedding hole C having a diameter slightly larger than the outer diameter of the embedding plug is formed on the upper surface of the installation table B, and the embedding plug is inserted into the embedding hole C to insert the lower surface of the flange 7 into the embedding hole C. It contacts the upper surface of the installation table B at the upper peripheral edge. Next, the water tank A is placed on the installation table B in a state where the through hole D opened in the attachment-required portion of the water tank A matches the upper opening of the embedding plug, and the embedding plug is inserted through the through hole D. When a screw member E having an enlarged head is screwed or press-fitted therein, the plug body 1 is expanded and deformed from the slits 3 and 3, and therefore the elastic member 5 is expanded and deformed so that the outer peripheral surface is embedded. Since the inner plug is tightly crimped to the inner surface of the hole C, the embedded plug is inserted into the embedded hole C through the elastic member 5 in a non-pulled state, and the water tank A is securely attached to the installation table B. .

In this state, even if an earthquake occurs and the vibration is transmitted to the facility part of the plug, the vibration is reliably absorbed and relaxed by the elastic member 5, so that a crack is formed on the inner surface of the embedding hole C. It is possible to effectively prevent the plug body 1 from entering or being damaged, and therefore, it is possible to securely maintain the tightly inserted state of the plug with respect to the embedding hole C, and to loosen the plug and the embedding hole C. The water tank A can be fixedly installed at a predetermined position.

Further, in the above embodiment, since the flange 7 is provided on the outer peripheral edge of the upper opening 6 of the elastic member 5, the water in the water tank A leaks to the outside or vibrates due to the packing action and the buffer action of the flange 7. The flange 7 is not an indispensable constituent element of the present invention, for example, there is no risk of water leakage such as plate material on the wall surface and other water leaks. In addition, when attaching an object that does not require cushioning properties, a normal tubular elastic member 5 without the flange 7 may be used.

(Effects of the Invention) The present invention is characterized in that the embedded plug body having an opening for expanding and having an opening at the upper side is closely fitted with an elastic member for vibration absorption having an upper opening. Even if vibration generated due to an earthquake or other causes is transmitted to the facility part of the plug, the vibration is reliably absorbed and mitigated by the elastic member, and therefore the internal surface of the embedded hole It has a great effect that it can effectively prevent cracks and damage to the plug body, and it can securely maintain the tightly plugged insertion state of the plug into the embedding hole, and its vibration resistance makes it possible to prevent the wall surface. There is an advantage that the mounting condition and the mounting strength of the mounting object with respect to other parts can be significantly improved as compared with the conventional embedded plug.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a partially cutaway front view of a plug body, FIG. 2 is a front view of a vibration absorbing elastic member fitted in the plug body, and FIG. FIG. 4 is a partial vertical sectional front view of the plug, and FIG. 4 is an explanatory view showing one usage state. (Explanation of reference numerals) 1 ... Embedded plug main body, 2 ... Upper opening, 3 ... Spreading slit, 5 ... Elastic member for vibration absorption, 6 ... Upper opening.

Claims (3)

[Scope of utility model registration request] 1. An embedding characterized in that an embedding plug body having an expanding slit and having an upward opening is closely fitted with an elastic member for vibration absorption having an upward opening. plug. 2. The embedded plug according to claim 1, wherein the elastic member is formed of a tubular body. 3. The embedded plug according to claim 1, wherein the elastic member is formed of a tubular body, and a flange is formed on an outer peripheral edge of an upper opening portion of the elastic member.