JPH028010Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an underfloor support device that is suitable for forming an underfloor structure that is elastic and can be adjusted up and down. The object of the present invention is to provide an underfloor support device that is inexpensive and easy to operate for vertical adjustment.

In recent years, in order to absorb the impact force applied to the floorboards of gymnasiums, hallways, etc., underfloor support devices that can elastically support lumber and joists from below have been developed, as seen in Utility Model Publication No. 54-21860. This type of underfloor support device is already known in the art, but this type of underfloor support device rotates only the connecting support bolts while the bulk material is placed on the upper surface of the seat, which is supported by a vibration absorber. Because the height position of the vibration absorber can be adjusted, the connection structure between the seat and the vibration absorber is quite complicated, and the cost of the support device is also quite high.

The present invention was developed in view of these circumstances, and includes an adjustment nut, a vibration absorber receiver, a vibration absorber, a spacer, and a receiver on a connecting support bolt that is screwed into a fixed receiver so that it can move up and down. By simply fitting a single part called a spacer fixing nut onto the outside, the catch can be held stationary even when the connection support bolt is rotated and raised or lowered, so that the catch can be adjusted up and down. The object of the present invention is to provide an underfloor support device which has a simple component structure and is easy to raise and lower.

In order to achieve the above object, the underfloor support device of the present invention includes a fixed support member installed on a base, a connecting support bolt screwed to the support member so as to be able to move up and down, and this connection support bolt. an adjustment nut that is screwed into an appropriate position and supports from below a vibration absorber receiver that is externally fitted on the connecting support bolt; A vibration absorber placed on the body support, a catch seat externally fitted on the connection support bolt so that the flat surface is placed on the upper surface of the vibration absorber, and a lower end abutting the vibration absorber support. The connection member is fitted into both the vibration absorber and the flat surface of the seat in a loosely fitted state so that the upper end thereof is in contact with and protrudes from the flat surface of the seat placed on the upper surface of the vibration absorber, and furthermore, a spacer fitted externally to the support bolt;
and a spacer fixing nut that is screwed onto the connection support bolt from above the flat surface of the catch and abuts against the upper end of the spacer, and the adjustment nut and the spacer fixing nut connect to the vibration absorber receiver. By pinching the spacer, both nuts are screwed and fixed to the connection support bolt, and by rotation of the adjusting nut, the connection support bolts are rotated together, and the connection support bolt is fixed to the connection support bolt. It is designed to be able to move up and down with respect to the fixed receiving material.

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 to 3, reference numeral 2 denotes a fixed support member installed on the base 1, and the fixed support member has a screw hole (not shown) in the center of the flat top formed in the shape of an angular frame. )
The lower end of the connecting support bolt 3 is screwed into the threaded hole, so that the connecting support bolt 3 can move up and down with respect to the fixed receiving member 2. 12 is
This is a lock nut for firmly fixing the connecting bolt 3 at an appropriate position, and by tightening the nut 12 on the upper surface of the fixed receiving member 2, the vertical position of the connecting support bolt 3 is immovable.

An adjustment nut 4 is screwed into an appropriate position above the connection support bolt 3, and supports a vibration absorber receiver 5 externally fitted onto the connection support bolt 3 at a predetermined position from below.

The vibration absorber receiver 5 supports the vibration absorber 6 which is loosely fitted onto the protruding portion of the connection support bolt 3 that projects upward from the vibration absorber receiver 5. In the embodiment, the vibration absorber 6 is attached to the center of the vibration absorber 6 The vibration absorber 6 is made of a cylindrical synthetic rubber elastic body with a hollow hole into which the connecting bolt 3 and spacer can fit. Needless to say, various shapes can be adopted depending on the shape.

In addition, the vibration absorber 6 is generally made of a material that does not easily deteriorate in order to withstand long-term use, but its shape, thickness, and size may be changed as appropriate depending on the purpose of use. Furthermore, it is not limited to this type of structure, and any other structure may be used as long as it is an elastic body that can absorb the impact force applied through the bulk material.

The catch seat 7 is externally fitted onto the connecting bolt 3 so that the connecting bolt 3 loosely fits through a through hole 72 that is bored approximately in the center of a flat surface 71 on which the large tension material 10 is placed. The seat 7 is placed on the top surface of the vibration absorber 6, but the seat 7 is placed on the top surface of the vibration absorber 6.
The proximal ends of the pair of left and right upright side surfaces 73, 73, which are made to stand up by bending both sides approximately vertically, are further cut out to form tapered locking protrusions 74, 74. Therefore, in order to fasten the large tension material 10 to the catch seat 7,
The locking protrusions 74, 74 of the catch seat 7 are bent as shown in FIG. 1 so that they are locked to the flange ends 11, 11 formed by bending both ends of the large tension material 10 outward. It can be attached easily and firmly.

In particular, in the embodiment, since the locking protrusions 74, 74 are formed in a tapered shape, even if there is some error in the position of the flange piece of the large tension material, the locking protrusions 74, 7
It is very convenient because it can be easily and firmly fixed by appropriately selecting the bending position in step 4. It goes without saying that the locking protrusions 74, 74 may be bent using a chisel or other suitable tool, but in particular, in the embodiment, the locking protrusions 74, 74 are bent using a chisel. Because of this, a through hole 75 is bored into which the tip of the china is inserted. However, if other bending means are employed, such through holes 75 are not necessarily necessary. A vibration absorber 6 is attached to the protruding portion of the connecting support bolt 3 above the vibration absorber receiver 5.
The vibration absorber 6 and the catch seat 7 are externally fitted in such a manner that they are in close contact with each other, but there is a gap between the connecting support bolt on which the vibration absorber 6 and the catch seat 7 are externally fitted. A cylindrical spacer 8 having a slightly larger inner diameter and a slightly smaller outer diameter than the through hole 61 of the vibration absorber 6 and the central through hole 72 of the seat 7 is attached to the seat. 7 and the connecting support bolt 3 in a loosely fitted state so that its lower end is in contact with the vibration absorber receiver 5, and its upper end is placed on the flat surface 71 of the receiver 7 placed on the upper surface of the vibration absorber 6. It is mounted on the vibration absorber holder 5 so that it is almost flush with the vibration isolating pad 13 or is slightly protruding.

In this way, the spacer 8 is fitted onto the upwardly protruding portion of the vibration absorber receiver 5 of the connection support bolt 3, and by fitting the spacer 8 outward, the vibration absorber 6 and the receiver seat 7 are fitted onto the outside. In addition, a vibration-proof pad 13 is placed on the flat surface 71 of the catch seat 7.
A spacer fixing nut 9 screwed onto the connecting support bolt 3 is positioned at the upper end of the spacer 8 which protrudes almost flush with the spacer 8. I try to hold it in between.

That is, the adjusting nut 4 is inserted from below with respect to the spacer 8 through the vibration absorber receiver 5.
By tightening the spacer fixing nut 9 from above and firmly clamping the spacer 8, the threaded portion of the spacer fixing nut 9 and the threaded portion of the connection support bolt 3 are screwed together. The contact surfaces and the threaded contact surfaces of the threaded portion of the adjusting nut 4 and the threaded portion of the connection support bolt 3 are strongly abutted in a state of threaded contact in opposite directions, and both nuts 4, 9 is screwed and fixed to the connection support bolt 3.

Therefore, by engaging a tool such as a spanner with the adjustment nut 4 and rotating the adjustment nut 4, the connection support bolt 3, vibration absorber receiver 5, spacer 8, and spacer fixing nut 9 can be adjusted. As a result of the rotation of the connecting support bolt 3, the connecting support bolt 3 is threaded into the screw hole of the fixing member 2, and the connecting support bolt 3 is easily moved up and down.

Note that when this connection support bolt 3 is moved up and down, the catch seat 7 also moves with the adjustment nut 4, vibration absorber receiver 5,
The seat 7 is then moved up and down via the vibration absorber 6, but in that case, the seat 7 is only placed on the vibration absorber 6, so it can be kept in a non-rotating state.

Further, the contact surface between the seat 7 and the vibration absorber 6 is a flat surface to ensure good sliding contact.

The embodiments of the present invention have been described above, but in order to facilitate understanding of the present invention, the usage of the above-mentioned embodiments will be explained below along with their functions.

First, the support device of the present invention is interposed between the large tension material 10 and the base 1 at a predetermined vertical interval. This is done by loosening the lock nut 12 in advance, rotating the adjustment nut 4, rotating the connection support bolt 3, vibration absorber receiver 5, spacer 8, and spacer fixing nut 9 together, and then tightening the connection support bolt. 3, the connecting support bolt 3 is screwed downward into the screw hole of the fixed receiving member 2, and the lower end of the connecting supporting bolt 3 is recessed into the fixed receiving member 2.

After the support device of the present invention is inserted between the large tension material 10 and the base 1, the adjustment nut 4 is rotated in the opposite direction to the above, and the connection support bolt 3 recessed into the fixed support material 2 is raised. Then, the catch seat 7 is brought into contact with the lower end surface of the large tension material 10.

After the seat 7 comes into contact with the lower end surface of the lumber 10, the adjusting nut 4 is rotated again to accurately support and horizontally adjust the lumber 10. When the large tension material 10 is properly supported by the catch seat 7, the lock nut 12 is tightened and the connection support bolt 3 is tightened.
The height position of the joist 15 is fixed, a vibration-proofing pad 14 is further laid on top of the large tension material 10, and a joist material 15 is placed on top of it so as to be perpendicular to it, and the joist material 15 is It is fixed to the upper surface of the pulling material 10.

In this way, the vibration absorber 6 receives a compressive force from above, but it gives a reaction force to the catch seat 7, so the large tension material 10 is supported without leaving a minute gap between the catch seat 7 and the catch seat 7. The impact force transmitted to the vibration absorber 6 acts constantly so that it is instantly absorbed by the elasticity of the vibration absorber 6.

Therefore, when the large tension material 10 is properly supported by the seat 7, the elasticity of the vibration absorber 6 will cause the large tension material 10 to always absorb the elasticity of the vibration absorber 6 when receiving an impact force on the floorboard (not shown). Since they are supported from below by force and deform and move together, no gap is formed between the large tension member 10 and the seat 7, and no contact noise is generated.

As described in detail above, according to the support device of the present invention, the connecting support bolt is screwed onto the fixed member so as to be able to move up and down, and includes an adjustment nut, a vibration absorber receiver, a vibration absorber, a spacer, a seat, and a spacer stopper. It has the special advantage of being extremely low in manufacturing cost due to its structural feature of being constructed by combining simplified parts called mounting nuts.

In addition, by adjusting the rotation of the adjustment nut, the connection support bolt can be adjusted up and down as desired while holding the catch in an immovable state. Since the height of the catch can be smoothly adjusted by simply rotating the underfloor structure, it is possible to easily construct the underfloor structure and shorten the construction period.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing how the support device of the present invention is used, Fig. 2 is a partially longitudinal front view showing how the support device of the present invention is used, and Fig. 3 is a longitudinal cross-section of the main part of the support device of the present invention. It is a partially cutaway perspective view. Explanation of symbols, 1...Base, 2...Fixed support material, 3
...Connection support bolt, 4...Adjustment nut, 5...
...Vibration absorber receiver, 6...Vibration absorber, 7...Batch seat, 8...
...Spacer, 9...Spacer fixing nut.

Claims (1)

[Scope of claim for utility model registration] A fixed support material installed on a base, a connecting support bolt screwed into the support material so as to be able to move up and down,
An adjustment nut is screwed into an appropriate position of the connection support bolt and supports the vibration absorber receiver from below, which is externally fitted on the connection support bolt, and an adjustment nut is fitted onto a portion of the connection support bolt that projects upward from the vibration absorber receiver. a vibration absorber placed on the vibration absorber receiver; a catch seat externally fitted on the connecting support bolt with a flat surface placed on the upper surface of the vibration absorber; The upper end is in contact with the body support and is loosely fitted into both the vibration absorber and the flat surface of the seat, with the upper end being approximately equal to or protruding from the flat surface of the seat placed on the top surface of the vibration absorber. a spacer that is fitted and further fitted externally to the connection support bolt; and a spacer fixing nut that is screwed onto the connection support bolt from above the flat surface of the seat and abuts the upper end of the spacer; By sandwiching the vibration absorber receiver and the spacer with the adjustment nut and the spacer fixing nut, these two nuts are screwed and fixed to the connection support bolt, and by rotation of the adjustment nut, An underfloor support device characterized in that the connecting support bolts are rotated together so that the connecting support bolts can be moved up and down with respect to the fixed receiving member.