JP3176676U - Rear mount module and nut assembly - Google Patents

Abstract

An improved rear mount module having improved durability and reliability is provided.
A rear mount module includes a plurality of nut assemblies that facilitate attachment of the module. Each of the plurality of nut assemblies 22 has a screw thread formed therein, a nut 24 that is non-rotatably inserted into a hole having an open end and a closed end, and an opening formed in the closed end of the hole. A first screw 26 for tightening the nut 24 into the hole by being completely screwed into one end of the nut 24 from the open end of the hole. And a first screw 26 that allows it to be screwed into the other end. A nut assembly 22 is also disclosed.
[Selection] Figure 6

Description

  The present invention relates to a nut assembly and a rear mount module having a plurality of nut assemblies.

  The existing rear LED module (the LED module attached to the back of the device) is provided with a plurality of nuts on the peripheral edge thereof. Then, in order to assemble these large LED display screens by attaching these rear LED modules to the frame, screws (bolts) are screwed into the nuts from the back of the rear LED modules. These rear LED modules are generally formed by molding a resin. A nut (generally made of iron) is positioned and held in a resin-made rear LED module obtained by this molding. However, when these materials have different coefficients of thermal expansion, and when the screws are screwed into these metal nuts when the rear LED module is attached to the frame, the resin around the metal nuts is used. Due to the force applied to the portion, cracks (breaks) are likely to occur in the resin portion around the metal nut. Then, if the nut is pulled, the rear LED module as a whole is loosened and may fall off.

  Therefore, there is a need to provide an improved rear mount module that has increased resistance and reliability.

  According to an aspect of the present invention, a rear mount module such as an LED module having a plurality of nut assemblies is provided. Each of the plurality of nut assemblies includes a nut that is internally threaded and is non-rotatably fitted into a hole formed in the module. The hole has an open end and a closed end. The first screw is completely screwed into one end of the nut from the opening formed in the closed end of the hole, whereby the nut in the hole is firmly tightened and the second screw Can be screwed into the other end of the nut from the open end of the hole.

  In one embodiment, the nut is in the form of an elongated hex nut and the hole has a complementary hexagonal cross section for receiving the nut without gaps. The opening may be formed by an annular portion formed at the closed end of the hole. The first screw includes a threaded shaft portion that can be inserted from the opening, and a large-diameter screw head that comes into contact with the annular portion at the closed end portion of the hole. The lengths of the nut and the hole may be substantially the same. The nut, the first screw, and the second screw may be made of metal such as copper.

  According to another aspect of the present invention, a nut assembly is provided. The nut assembly has a screw thread formed therein, a nut that is non-rotatably inserted into a hole having an open end and a closed end, and an end of the nut from an opening formed in the closed end of the hole A first screw that firmly tightens the nut into the hole by being completely screwed into the hole, and the second screw is screwed into the other end of the nut from the open end of the hole. And a first screw that makes it possible.

  In one embodiment, the nut is in the form of an elongated hex nut and the hole has a complementary hexagonal cross section for receiving the nut without gaps. The opening may be defined by an annular portion formed at the closed end of the hole. The first screw includes a threaded shaft portion that can be inserted from the opening, and a large-diameter screw head that comes into contact with the annular portion at the closed end portion of the hole. The lengths of the nut and the hole may be substantially the same. The nut, the first screw, and the second screw may be made of metal such as copper.

It is a partially cutaway sectional view of a rear mount module having a plurality of nuts of the prior art. It is sectional drawing along line AA of the rear mount module of FIG. It is a perspective view of the rear mount module which has a nut of the prior art of FIG. It is a perspective view of the nut of the prior art of FIG. 1 is a partially cutaway cross-sectional view of a rear mount module having a plurality of nut assemblies according to an embodiment of the present invention. FIG. 6 is a cross-sectional view taken along line AA of the rear mount module of FIG. 5. 1 is a perspective view of a rear mount module having a plurality of nut assemblies according to an embodiment of the present invention. It is an exploded view of the nut assembly of the present invention. It is a front perspective view of a rear mount module.

  Specific embodiments of the present invention will now be described by way of example with reference to the accompanying drawings.

  1-3 show various views of a prior art rear mount module 10. The rear mount module 10 can be an LED (light emitting diode) module or any type of module. The rear mount module 10 is provided with a plurality of nuts 12 along four peripheral edges, as best shown in FIG. In order to manufacture a large LED display screen by attaching a plurality of these modules 10 to the frame, screws are screwed into the nuts 12 from the back of the module 10. The rear mount module 10 is generally rectangular and is formed by molding a resin. The nut 12 (generally made of metal) is positioned in the resin module 10 during this molding process.

  When a screw is screwed into the nut 12 by a screw driver, a torque applied to the screw may cause a crack in the resin portion around the nut 12 or may deform the resin portion. When a crack is generated in the resin module 10, the nut 12 is loosened and eventually falls off. And the LED module 10 attached to the LED display screen may fall off due to the looseness of the screws. In this case, the LED module 10 is not waterproof and does not emit light.

  Further, after the resin molding, the metal nut 12 is fixed inside the resin module 10. Since the resin module 10 and the metal nut 12 are made of different materials, they have different coefficients of thermal expansion. When the temperature of the resin module 10 with the metal nut 12 fixed therein changes (temperature increase or temperature decrease), an internal force is generated in the resin module 10. Further, when the resin module 10 is attached to the frame, when a screw is screwed into the metal nut 12, an additional force accompanying the screwing is applied to the metal nut 12 and the resin module 10. In addition, this causes a crack in the portion of the resin module 10 around the metal nut 12.

  5 and 6 are partially cutaway sectional views of a rear mount module 20 having a plurality of nut assemblies 22 according to an embodiment of the present invention. The rear mount module 20 is usually rectangular. The rear mount module 20 can be an LED module provided with an LED array. A large LED display screen can be formed by attaching a plurality of these LED modules to the frame.

  The plurality of nut assemblies 22 are provided along the four peripheral edges of the rectangular module 20. According to the embodiment shown in FIG. 7, four nut assemblies 22 are provided along the upper and lower peripheral edges of the rear mount module 20, and two nut assemblies 22 are provided along the left and right peripheral edges. These nut assemblies 22 are arranged at equal intervals along the peripheral edge of the rear mount module 20 so that the rear mount module 20 can be properly installed on the frame of a large display screen.

  Each of the plurality of nut assemblies 22 has a nut 24 and a first screw 26 threaded therein. According to the illustrated embodiment, the nut 24 may be in the form of an elongated hex nut, as best shown in FIG. The nut 24 is non-rotatably fitted into the hole 28 formed in the rear mount module 20. The bore 28 has a complementary hexagonal cross section for receiving the nut 24 without gaps. When the nut 24 is received in the hole 28 without any gap, rotation in the hole 28 around the central axis of the nut 24 is limited.

  The hole 28 has an open end and a closed end. The open end of the hole 28 is disposed on the back side of the module 20, and the closed end is disposed on the front side of the module 20. The nut 24 is inserted into the hole 28 from the open end of the hole 28. The first screw 26 is screwed into one end portion (an inner end portion located inside the module 20) of the nut 24 from an opening 34 formed in the closed end portion of the hole 28. The opening 34 can be formed by an annular portion 36 formed at the closed end of the hole 28. The first screw 26 has a threaded shaft body portion that can be inserted from the opening 34, and a large-diameter screw head that abuts the annular portion 36 at the closed end of the hole 28.

  When the first screw 26 is completely screwed into one end portion of the nut 24, the nut 24 in the hole 28 is tightened by the first screw 26. As a result, a second screw (not shown) can be screwed from the open end of the hole 28 to the other end of the nut 24 (the outer end located outside the module 20).

  The lengths of the nut 24 and the hole 28 are substantially the same. When the nut 24 is inserted into the hole 28, the outer end portion of the nut 24 and the open end portion of the hole 28 are substantially flush with each other. The nut 24, the first screw 26, and the second screw can be a metal such as copper or any other suitable material.

  In the illustration and description above, nut 24 is in the form of an elongated hex nut and hole 28 has a complementary hexagonal cross section, but nut 24 and hole 28 have other possible shapes, such as squares. be able to.

  When attaching the nut assembly 22 to the rear mount module 20, the user first inserts the nut 24 into the hole 28 from the open end of the hole 28. The nut 24 is inserted into the hole 28 so that the inner end of the nut 24 abuts the inner surface of the annular portion 36 at the closed end of the hole 28. In this way, the outer end portion of the nut 24 is substantially flush with the open end portion of the hole 28. Since the nut 24 has a hexagonal shape and the hole 28 has a complementary hexagonal cross section, the nut 24 can be fitted into the hole 28 without a gap. Therefore, the nut 24 cannot be rotated around the central axis of the nut 24 inside the hole 28.

  Subsequently, the user inserts the threaded shaft portion of the first screw 26 from the opening 34 and screwes the first screw 26 into the inner end portion of the nut 24 using a conventional screw driver. To do. By completely screwing the first screw 26 into the inner end of the nut 24, the nut 24 is firmly tightened in the hole 28. In this manner, the operation of attaching one nut assembly 22 to the rear mount module 20 is completed. Next, as shown in FIG. 9, the user inserts another first screw 26 into the inner end of another nut, thereby forming the other formed along the peripheral edge of the rectangular module 20. The operation of attaching another nut assembly 22 to the hole 28 is continued.

  When all the nut assemblies 22 are attached to the rear mount module 20, the rear mount module 20 is ready to be attached to the frame by screwing the second screw into the outer end of the nut 24 of each nut assembly 22. . Since the nut 24 is attached and held at a predetermined position by the first screw 26, a resin module around the nut assembly 22 is generated by a force accompanying the attachment caused by applying a torque to the second screw. At 20, the possibility of cracking is reduced. Thereby, the tolerance of the rear mount module 20 can be improved.

  In the above illustration and description, the nut assembly 22 of the present invention is provided on the rectangular LED module 20 in order to easily attach the module 20 to the frame and assemble a large LED display screen. However, it should be understood that the nut assembly 22 can be used to mount any other type of module having any of various sizes and shapes. For example, the nut assembly 22 can be used to attach a solar power generation module, an incandescent lamp module, a spotlight module, and the like, and the shape of the rear mount module 20 may be circular. When the shape of the rear mount module 20 is circular, the nut assemblies 22 can be provided at equal intervals along the annular peripheral edge of the rear mount module 20.

  Although several preferred embodiments of the present invention have been shown and described in detail, it should be noted that various changes and modifications can be made without departing from the scope of the utility model registration claims of the present invention.

Claims (12)

A rear mount module having a plurality of nut assemblies,
Each of the plurality of nut assemblies is
A screw thread is formed inside, and has an open end and a closed end, and a nut that is non-rotatably inserted into a hole formed in the rear mount module;
A first screw that tightly tightens the nut into the hole by being completely screwed into one end of the nut from an opening formed in the closed end of the hole; A rear mount module comprising: a first screw that allows the nut to be screwed into the other end portion of the nut from the open end portion of the hole. The rear mount module according to claim 1,
The nut is in the form of a long hex nut,
The rear mount module, wherein the hole has a complementary hexagonal cross section for receiving the nut without gap. The rear mount module according to claim 1,
The rear mount module, wherein the opening is formed by an annular portion formed at the closed end of the hole. The rear mount module according to claim 3,
The first screw is
A threaded shank insertable from the opening;
A rear mount module comprising a large-diameter screw head abutted against the annular portion at the closed end portion of the hole. The rear mount module according to claim 1,
The rear mount module, wherein the nut and the hole have substantially the same length. The rear mount module according to claim 1,
The rear mount module, wherein the nut, the first screw, and the second screw are made of metal. A nut that is internally threaded and non-rotatably fitted into a hole having an open end and a closed end;
A first screw that tightly tightens the nut into the hole by being completely screwed into one end of the nut from an opening formed in the closed end of the hole; A nut assembly, comprising: a first screw that allows the other end of the nut to be screwed from the open end of the hole. A nut assembly according to claim 7,
The nut is in the form of a long hex nut,
The nut assembly, wherein the hole has a complementary hexagonal cross-section for receiving the nut without gaps. A nut assembly according to claim 7,
The nut assembly, wherein the opening is formed by an annular portion formed at the closed end of the hole. A nut assembly according to claim 9, comprising:
The first screw is
A threaded shank insertable from the opening;
A nut assembly, comprising: a large-diameter screw head abutted against the annular portion at the closed end portion of the hole. A nut assembly according to claim 7,
A nut assembly, wherein the nut and the hole have substantially the same length. A nut assembly according to claim 7,
The nut assembly, wherein the nut, the first screw, and the second screw are made of metal.

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