JPS6317851Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a holding device for a nut for screwing a C-shaped groove member for screwing together a substrate groove piece of an aluminum extruded C-shaped groove member and an aluminum plate.

Generally, the cabinets of computer equipment use C-shaped groove material made of extruded aluminum material, use this as aggregate to construct the cabinet frame, and then attach aluminum plates between adjacent aggregates to give a decorative finish. ing. In this case, the substrate part of the C-shaped groove material and the aluminum plate are fixed with screws, but this is usually done by fixing the aluminum plate and the C-shaped groove material.
A hole that matches the mold groove material is drilled in advance, and C
A nut may be fitted into the groove from one end of the mold groove material, moved to the position of the hole, fixed, and then tightened by screwing in a screw from the aluminum plate side. However, it is not easy to fit the nut into the groove of the C-shaped groove, move it to the hole, fix the nut at a desired position, and screw in the screw. For example, when the aggregate is in a horizontal position, it is possible to insert a nut from one end, move it to the hole position, and hold the nut from outside the groove to fix it, but if the aggregate is in a vertical or diagonal position If the nut is inserted from one end, it will fall under its own weight and move to the other end, making it difficult to fix it in the hole in the middle.
Therefore, assembly and manufacturing of this type of cabinet is labor-intensive and inefficient.

Therefore, various proposals have been made to eliminate such inconveniences. For example, Figures 1 and 2
The one shown in the figure has been proposed in which a holding body 2 is attached to a nut 1 that can be inserted through the groove 4 to fix a C-shaped groove material 3 and a plate material 5 such as an aluminum plate (Jikkosho). 43-7584). The nut 1 in this proposal is a specially made rectangular nut that can be slotted, and has horizontal grooves 1a on two opposing sides that engage both ends of the holder 2;
1a is provided. On the other hand, the holding body 2 has an apex 2b in the center, is bent outward in a roof shape, and has engaging ends 2a, 2a that can be fitted into the horizontal grooves 1a, 1a at both ends.
is formed into a key shape. Therefore, Natsuto 1
and the holder 2 are integrally attached, so even if the top part 2b comes into contact with the inner surface 3a of the top plate part of the C-shaped groove member 3, there is elasticity, and when the nut 1 is inserted into the groove part 4, the base plate of the nut 1 The function of pressing the groove piece 3b side works, and even if it is inserted from the upper end of the vertically provided C-shaped groove piece 3, it will not fall downward under its own weight, and the holder 2 will prevent it from slipping and remain in a fixed position. can stay.

However, according to this example, the nut needs to be specially made, and the holder must also be bent into a special shape, and in addition, the product is a unit in which the nut 1 and the holder 2 are integrally connected. If this is not done, it will take a lot of effort and become inefficient to use. Therefore, there were disadvantages such as increased costs. On the other hand, functionally, when tightening the screw 7, if the screw 7 is pushed strongly through the hole 6, the holder 2 becomes roof-shaped and the top part 2b protrudes outward. The C-shaped groove material is pushed toward the inner surface 3a of the top plate, and due to the pressing force, the holder 2 opens left and right around its top 2b, and the hook-shaped bent engagement ends 2a, 2a engage the horizontal groove 1a of the nut 1. , 1a, and the nut 1 may not be tightened enough. Furthermore, the holding body 2 has a roof-like structure with the top part 2b protruding outward, and the engaging ends 2a, 2a are connected to the lateral grooves 1a, 1 of the nut 1.
a, the flexibility or elasticity of the holder 2 is extremely limited. Therefore, when the nut 1 is inserted into the groove 4 of the C-shaped groove 3, the nut 1 does not fit into the holder 2. Since it does not sink inward, it may become impossible to insert it depending on the size, and it must be said that the practical effect is not sufficient.

Furthermore, according to the conventional example shown in FIGS. 3 and 4, a hexagonal hole 10 into which a nut 9 can be fitted is bored in the center of a substantially square holding body 8 made of a slightly hard synthetic resin. At the same time, a gap 11, 11 is formed between the nut 9 at least on two opposing sides thereof, and a holder 8 on the side of the gap 11, 11 is formed.
It has anti-slip parts 8a, 8a which are formed to project outwardly in an arc shape on both sides. Therefore, when the anti-slip parts 8a, 8a are inserted from one end of the C-shaped groove material 3 so that they abut the inner surfaces of both side plates of the groove 4, the anti-slip parts 8a, 8a close the gaps 11, 8a.
Since the holder 8 and the nut 9 are recessed in the 11 direction, the holder 8 and the nut 9 can be fixed at desired positions.

According to this example, even though the nut 9 has the advantage of being able to use a commercially available ready-made product, the holder 8 requires specially made parts and has a special shape, which makes it expensive. body 8
and nut 9 must be integrally fitted to form a single unit. Furthermore, during use, the insertion direction of the holder 8 must be determined every time, which is a hassle.

Prior to this, the present inventor proposed what is shown in FIGS. 5 and 6 (Utility Model Publication No. 54-39577). This screw fixing nut is a square special nut 13.
A semicircular groove 14 is provided on the outer side of the C-shaped groove material 3, and a rubber ring 15 is fitted into the semicircular groove 14.
The rubber ring 15 has an anti-slip effect and can hold the nut 13 at a desired position within the groove 4.
However, even in this example, the nut 13 is specially made and the rubber ring 15 must be attached, so although it does not result in as high a cost as the two examples above, it does result in a higher unit price. There is no difference.

Therefore, the present invention provides a holding device for nuts for fixing C-shaped groove members with screws, which is not only easy to work with and efficient in processing and assembly, but also can significantly reduce manufacturing costs, that is, market costs. ,
The present invention is characterized in that a commercially available nut can be held between the holding body bent in the shape of a square, and the nut can be inserted into the groove.

The following is an example of the present invention in Figures 7 to 10.
This will be explained with reference to the figures. This embodiment shows a case where a hexagonal nut is used, FIGS. 7 and 8 are sectional views similar to FIGS. 1 and 2, and FIG. 9 is a perspective view showing the state when screwed. FIG. 10 is a perspective view showing the state in which the nut and the holder are attached. In the drawings, the same components as in the conventional example are indicated by the same reference numerals, and 16 is a holder having a square-shaped side surface. This holding body 16 is a bent plate portion 16 having a dogleg-shaped cross section.
b, 16b and the holding plate portions 16a, 16 on both sides thereof
a and are formed into a square shape, and the bent plate portions 16b, 16b
A guide hole 16c is provided in the center of the guide hole 16c. Further, the distance between the clamping plate portions 16a, 16a is approximately the same as the length of a diagonal line passing through the center of the nut 9 (the length of the major diameter portion). The holding body 16 and the clamping plate portion 16 of the holding body 16 are disposed within the groove portion 4 of the C-shaped groove member 3 having an axial opening groove 3c at the center of the substrate portions 3b, 3b.
When the nut 9 with the edge portions 9b and 9b sandwiched between a and 16a is fitted, and the crimp surface of the nut 9 is turned inside toward the base groove pieces 3b and 3b of the C-shaped groove material 3, the nut 9 is Due to the elasticity of the bent plate parts 16b, 16b of the holder 16 which are in contact with the inner surface 3a of the top plate part of the C-shaped groove material 3, the inner surfaces of the base plate groove pieces 3b, 3b are pressed, and the clamping plate parts 16a, 16a The inner surface of the nut 9 is pressed against the ridge portions 9b, 9b of the nut 9, and the upper and lower parts of the nut 9 are reliably clamped and held within the holder 16. In order to prevent the nut 9 from rotating, in this case, the width of the holder 16 is formed to be shorter than the length of the short diameter part of the nut 9, and the opposite side surfaces 9a, 9a of the nut 9 are formed on both inner surfaces of the groove 4. This is done by making contact.

Therefore, in the screw nut holding device according to the present invention, the nut 9 is held between the holding body 16 as shown in FIG.
When the holding plate portions 16a, 16a side are inserted from the upper end, the nut 9 is inserted into the bending plate portion 16 as described above.
b, 16b side to make the holding body 16 retain elasticity, and the clamping plate parts 16a, 16a and the bending plate part 16
The intersection portions 16e, 16e between b and 16b abut against the inner surface 3a of the top plate portion of the C-shaped groove material 3, while the crimp surface of the nut 9 abuts against the substrate groove pieces 3b, 3b, and the nut 9 and The retainer 16 remains fitted.
The nut 9 and the holder 16 can be stopped and held at a desired position in the groove 4 of the mold groove material 3, and there is no possibility that the nut 9 and the holder 16 will fall involuntarily due to their own weight. In this state, the screw 7 is inserted through the hole 6 of the plate material 5, screwed into the opening groove 3C and the screw hole 12 of the nut 9, and tightened. Furthermore, a slightly thick plate material 5 is attached to the C-shaped groove material 3.
When using screw 7, make it longer than usual,
Even if the screw tip were forced to protrude from the nut 9, the screw tip would pass through the guide hole 16C of the holder 16, so there would be no risk of damaging the holder 16.

Since the holding device for a nut for fixing a C-shaped groove member with a screw according to the present invention is configured as described above to hold the nut, it has further excellent effects as described below.

(1) In the present invention, the nut is held between the holding plates, so the holding body can be made by simply cutting and bending a material of the required width and drilling a guide hole, so less material is required, compared to the conventional method. It can be provided at low cost.

(2) The holder used in this invention has two steps: bending it into a shape using a press, and drilling a guide hole.
Since it can be completed in a process, the processing work is simple, leading to low processing costs and low costs.

(3) The holding body of the present invention holds the nut by the holding plate part, and due to the elasticity of the bent plate part, the nut comes into pressure contact with the inner surface of the substrate groove pieces 3b, 3b of the C-shaped groove material, and the holding body is held in place. Intersection part 16 between the plate part and the bent plate part
e, 16e are in pressure contact with the inner surface 3a of the top plate part of the C-shaped groove member, and the nut is held in the groove part 4, so that even slight dimensional errors in the bent part of the holder will cause elastic deformation of the clamping plate part. Since it will be absorbed by the process, high precision is not required during production.
The processing cost is also low in this respect, resulting in low cost.

(4) According to the present invention, by fitting the holder to the nut and
When installed in the groove of the mold groove material, the wide pressure contact surface between the holder and the inner surface of the top plate sufficiently functions to prevent the nut from rotating, so commercially available hexagonal nuts can be used. The opposing side surfaces 9a of the nut are the inner surfaces 3d of both side plates of the C-shaped groove material,
Even if a nut with a diameter so small that it does not come into contact with 3d is used, the tightening work can be carried out smoothly without the risk of interfering with tightening the screw.

(5) The nut held in the present invention can be a commercially available product, and the nut can be purchased at a low price, and the overall cost when combined with the holder is low. Furthermore, since nuts are easily available anywhere, it is also possible to make only the holder and purchase the nuts as needed.

(6) According to the present invention, since the upper and lower surfaces of the nut are held between the holding plate parts of the holder, the rotation prevention when screwed into the screw is done by the inner surfaces 3d, 3d of both sides of the C-shaped groove material.
Since this is done on the opposing side surfaces 9a, 9a of the holder, the rotation can be prevented reliably.

(7) Also, since the present invention involves fitting the holder to the nut, the degree of engagement between the nut and the holder can be adjusted freely, such as making it deeper or shallower. It can be applied to both long and short distances between the inner surface of the top plate and the inner surface of the top plate.

(8) When the nut is held between the clamping plates of the holder and a pressing force is applied by the nut to the bent plate of the holder, the clamping plates do not open outward.
Rather, it acts inward, and the more the nut is pushed, the more the nut comes into pressure contact with the C-shaped groove member 3 by the holder, and the nut can be held securely.

[Brief explanation of the drawing]

Figures 1 to 6 show a conventional example, where Figure 1 is a longitudinal sectional view showing the state at the time of fastening, Figure 2 is a cross sectional view, Figure 3 is a plan view, and Figure 4 is the A cross-sectional view showing the state when fastened, Figure 5 is a plan view,
Fig. 6 is a longitudinal sectional view thereof, Figs. 7 to 10 show embodiments of the present invention, Fig. 7 is a longitudinal sectional view similar to Fig. 1, and Fig. 8 is a transverse sectional view similar to Fig. 2. , FIG. 9 is a partially cutaway and omitted perspective view showing the state at the time of fastening, and FIG. 10 is a perspective view showing the engaged state of the nut and the holder. 3...C-shaped groove material, 4...Groove portion, 5...Plate material, 6
... Hole, 7 ... Screw, 9 ... Nut, 16 ... Holder, 16a, 16a ... Holding plate part, 16b ...
Bent plate section, 16c...Guide hole.

Claims (1)

[Scope of utility model registration request] A holder 16 that presses the nut 9 in the opening direction is fitted into the groove 4 of the C-shaped groove member 3 having a longitudinal opening groove 3C in the center of the mounting surface, and the holder 16 is a bent plate portion having a dogleg-shaped cross section. A guide hole 16C is formed in the center of the bending plate part, and the nut is inserted into the guide hole by the clamping plate parts so as to communicate with the screw hole 12 of the nut 9. The C-shaped groove material 3 is held at a desired position, and the substrate groove piece 3b of the C-shaped groove material 3,
3b and a nut 9 are screwed together with a screw 7.