TWI551784B - Thumb screw - Google Patents

Description

Hand screw

The present invention relates to a screw, and more particularly to a hand-turn screw for locking a circuit board.

Generally, the structure of the screw is roughly divided into a rod portion and a head portion, and the circumference of the rod portion is threaded to increase the bonding strength with the article when the lock is engaged. The head has a large cross section, which is intended to be used for fitting and applying force to the tool. The head is provided with a slot for the tool to be embedded, for example, a conventional one-word type or a cross type, and there are hexagonal type, plum type, and the like. When it is locked, it is inserted into the slot or the sleeve joint by a screwdriver or a wrench corresponding to the sectional shape and size to facilitate the rotation of the force.

However, the above-mentioned conventional screw lock cooperation industry needs to be carried out by tools. If there is no corresponding tool, the combination of items cannot be performed, which is extremely inconvenient. In view of this, the related art has proposed a hand screw. Referring to Figure 1, Figure 1 is a schematic view of a conventional hand-turn screw. The conventional hand-turning screw 10 specifically covers the head 11 of the general screw in the plastic cylinder 12, and the column 12 has a plurality of ridges 13 on the surface to facilitate the grip and rotation of the hand.

However, when the conventional turning screw 10 is used in a lock circuit board (for example, a main board), there are the following problems. A coil of electronic component clearance area (keepout area) is required around the screw hole of the corresponding hand screw 10 on the circuit board, which is used for the finger to hold the operating area of the screw head so as not to interfere with the components on the circuit board. However, with the lightness and thinness of electronic products Under the design trend, the space on the circuit board is becoming more and more urgent, and the disabled area required by the conventional hand-turn screw 10 causes a reduction in the space on which the electronic components can be placed on the circuit board, which does not conform to the current design trend.

In view of the above, an object of the present invention is to provide a hand-rotating screw for reducing a prohibited area, which can prevent an electronic component on a circuit board from being interfered by a finger operation, and does not need to be provided with a disable area on the circuit board, thereby reducing waste of circuit board space. This overcomes the conventional problems.

In order to achieve the above object, the present invention provides a hand-turn screw for locking a circuit board, and the hand-turn screw includes a screw head, a stud, a disc-shaped structure and a labor-saving structure. One end of the stud is coupled to the screw head and the other end forms a threaded body. The disc-shaped structure ring is arranged around the screw head. The labor-saving structure is arranged around the screw head and on the disc-shaped structure for locking or relaxing the hand. When the hand screw is locked to the board, the disk structure is located on the board at a predetermined distance.

In a preferred embodiment, the disc structure has an upper disc surface and a corresponding lower disc surface. In addition, the labor-saving structure is located on the upper surface of the disc-shaped structure. Specifically, the labor-saving structure includes a plate body that protrudes radially around the screw head and is perpendicular to the upper disk surface. Preferably, the upper disc surface and the lower disc surface are each defined with a diameter ranging from 2 cm to 6 cm.

In a preferred embodiment, the screw head has a top surface and a bottom surface, and the disk-shaped structure ring is disposed between the top surface and the bottom surface of the screw head.

In a preferred embodiment, the predetermined distance is between 1 mm and 20 mm.

In a preferred embodiment, the screw head, the disc-like structure and the labor-saving structure are integrally formed.

The hand-turn screw of the preferred embodiment further includes a tubular body and a spring. Sliding body Set on the stud. The spring sleeve is disposed between the screw body of the stud and the pipe body, and the two ends thereof are respectively abutted against the bottom surface of the screw head and the inner wall of the pipe body. In addition, one end of the tube body is provided with a flange for being stuck on the circuit board.

Compared with the prior art, the hand screw of the present invention blocks the finger from touching the circuit board through the disk structure to reduce interference with the electronic components of the circuit board. In addition, since the disc-shaped structure is located on the circuit board by a predetermined distance, the space of the lower disc surface can be set with electronic components without planning the electronic component disabling area, thereby increasing the available area on the circuit board, and solving the use of the conventional hand-turning screw. Defects on the board.

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

10‧‧‧ Known hand screw

11‧‧‧ head

12‧‧‧ plastic cylinder

13‧‧‧ embossing

20‧‧‧Hand screw

21‧‧‧ screw head

22‧‧‧ Stud

23‧‧‧Disc structure

24‧‧‧ labor-saving structure

27‧‧‧ tube body

28‧‧‧ Spring

30‧‧‧ boards

32‧‧‧ screw holes

34‧‧‧Fixed holes

212‧‧‧ top surface

214‧‧‧ bottom

215‧‧‧Slots

216‧‧‧ Groove

222‧‧‧Snail

232‧‧‧Upper

234‧‧‧Down

242‧‧‧ board

272‧‧‧ inner wall

274‧‧‧ convex ring

276‧‧‧Flange

AA‧‧ ‧ line segment

D‧‧‧Predetermined distance

FIG. 1 is a schematic view showing a conventional hand screw.

FIG. 2 is a top perspective view of the hand screw of the preferred embodiment of the present invention.

Figure 3 is a side perspective view of the hand-rotating screw of the preferred embodiment.

Figure 4 is a schematic cross-sectional view along line AA of Figure 2.

Figure 5 is a side elevational view of the assembly of the hand-turn screw of the preferred embodiment with the circuit board.

The present invention has been described in detail with reference to the preferred embodiments in the

The hand-turn screw of the preferred embodiment will be described below with reference to the drawings. Please refer to FIG. 2, FIG. 3 and FIG. 4, and FIG. 2 is a top perspective view of the hand screw of the preferred embodiment of the present invention. FIG. 3 is a side perspective view of the hand-turn screw of the preferred embodiment, and FIG. 4 is a cross-sectional view along line AA of FIG. The hand screw 20 of this embodiment is used to lock a circuit board (not shown).

As shown, the hand-turn screw 20 of the present embodiment includes a screw head 21, a stud 22, a disk-like structure 23, and a labor-saving structure 24. The screw head 21 has a top surface 212 and a bottom surface 214. The top surface 212 of the screw head 21 is provided with a slot 215 for the tool to be embedded. In this embodiment, the slots 215 are plum-shaped and in-line hybrid slots for operation with a plum driver or a screwdriver. However, the invention is not limited thereto. Similarly, in this embodiment, a plurality of ridges 13 are provided around the screw head 21, and the rib 13 is used to increase the frictional force when the finger twists the screw head 21.

As shown in Fig. 4, one end of the stud 22 is coupled to the screw head 21, and the other end is formed with a screw body 222 having a thread (not shown). Specifically, one end of the stud 22 is coupled to the bottom surface 214 of the screw head 21. In this embodiment, the bottom surface 214 of the screw head 21 is provided with a recess 216, and one end of the stud 22 is coupled to the bottom wall of the recess 216.

As shown in FIGS. 2 and 4, the disk-like structure 23 is disposed around the screw head 21, wherein the disk-shaped structure 23 has an upper disk surface 232 and a corresponding lower disk surface 234. In this embodiment, the upper disk surface 232 and the lower disk surface 234 are circular, each of which defines a diameter, which is set to conform to the width of the index finger and the thumb of the average person. Preferably, the diameter is between 2 cm and 6 cm.

As shown in Figures 2 and 3, the labor-saving structure 24 is disposed around the screw head 21 and on the disc-like structure 23 for locking or relaxing the hand. Specifically, the labor saving structure 24 is located on the disk surface 232 above the disk structure 23. In this embodiment, the labor-saving structure 24 includes a plate body 242 that projects radially around the screw head 21 and is perpendicular to the upper disk surface 232. In more detail, the plate body 242 is in a paired design, which is disposed at opposite ends of the screw head 21 for the index finger. Push with the thumb. However, the present invention does not limit the specific shape of the labor-saving structure 24. For example, designs in which the plate body 242 can be designed to be curved or have different thicknesses and the like are within the scope of the present invention.

Please refer to FIG. 5, which is a side view showing the assembly of the hand-rotating screw of the preferred embodiment with the circuit board. As shown, the disk-like structure 23 is disposed between the top surface 212 and the bottom surface 214 of the screw head 21 such that the disk-like structure 23 is positioned on the circuit board 30 at a predetermined distance D when the hand-rotating screw 20 is locked to the circuit board 30. . Specifically, preferably, the predetermined distance D is between 1 mm and 20 mm, so that the space of the lower disk surface 234 can be configured with electronic components, thereby eliminating the need to provide a disable zone.

It is worth mentioning that the screw head 21, the disk-shaped structure 23 and the labor-saving structure 24 of the embodiment are integrally formed. However, the screw head 21, the disk-like structure 23, and the labor-saving structure 24 may be separate components. In addition, the screw head 21, the disk-shaped structure 23 and the labor-saving structure 24 may be made of a plastic material, and one end of the metal stud 22 is covered therein.

Referring to FIGS. 4 and 5 again, the hand-rotating screw 20 of the present embodiment can be designed as a screw for preventing loss, which will be described in detail below. In this embodiment, the hand-screw 20 can also include a tubular body 27 and a spring 28. As shown in FIG. 4, the tubular body 27 is slidably sleeved on the stud 22. The spring 28 is sleeved around the screw body 222 of the stud 22 and the tube body 27, and its two ends abut against the bottom surface 214 of the screw head 21 and the inner wall 272 of the tube body 27, respectively. Specifically, one end of the spring 28 abuts against the bottom wall of the recess 216 of the bottom surface 214, and the other end abuts against the convex ring 274 of the inner wall 272 of the tubular body 27. The tubular body 27 is slidably sleeved on the stud 22 by compression of the spring 28.

As shown in Fig. 5, one end of the tubular body 27 is provided with a flange 276 for being stuck on the circuit board 30. Specifically, FIG. 5 is a schematic view of the screw hole 32 of the present embodiment of the hand screw 20 locked to the circuit board 30. When the hand screw 20 is loosened, the tube body 27 is gradually released downward. When the screw body 222 is engaged with the screw hole 32, the hand screw 20 can be stuck on the circuit board through the flange 276 The fixing hole 34 on the 30 further reduces the loss.

In summary, the hand-rotating screw 20 of the present invention blocks the finger from touching the circuit board 30 through the disk-like structure 23 to reduce interference with the electronic components on the circuit board 30. In addition, since the disk-like structure 23 is located on the circuit board 30 by a predetermined distance D, the space of the lower disk surface 234 can be set with electronic components without planning the electronic component disable zone, thereby increasing the available area on the circuit board 30, and solving the problem. Know the hand screw to use the defects on the board.

Although the invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention. Various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

13‧‧‧ embossing

20‧‧‧Hand screw

21‧‧‧ screw head

22‧‧‧ Stud

23‧‧‧Disc structure

24‧‧‧ labor-saving structure

232‧‧‧Upper

242‧‧‧ board

AA‧‧ ‧ line segment

Claims (9)

A hand screw for locking a circuit board, the hand screw includes: a screw head; a stud, one end coupled to the screw head, the other end forming a threaded screw body; a disc structure, a ring Around the screw head; and a labor-saving structure disposed around the screw head and located on the disc-shaped structure for locking or relaxing the hand; wherein the hand screw is locked on the circuit board The disk structure is located on the circuit board at a predetermined distance; and wherein the screw head has a top surface and a bottom surface, and the disk structure ring is disposed between the top surface and the bottom surface of the screw head. The hand-rotating screw of claim 1, wherein the disk-shaped structure has an upper disk surface and a corresponding lower disk surface. The hand-rotating screw of claim 2, wherein the labor-saving structure is located on the upper surface of the disc-shaped structure. The hand-rotating screw of claim 3, wherein the labor-saving structure comprises a plate body that protrudes radially around the screw head and is perpendicular to the upper disk surface. The hand-rotating screw of claim 2, wherein the upper disc surface and the lower disc surface each define a diameter ranging from 2 cm to 6 cm. The hand-rotating screw of claim 1, wherein the predetermined distance is between 1 mm and 20 mm. The hand-rotating screw of claim 1, wherein the screw head, the disc-shaped structure and the labor-saving structure are integrally formed. The hand-turning screw according to claim 1, further comprising: a tube body slidably sleeved on the stud; and a spring disposed around the screw body of the stud and the tube body And the two ends thereof are respectively abutted against a bottom surface of the screw head and an inner wall of the tube body. The hand-rotating screw of claim 8, wherein one end of the pipe body is provided with a flange for being stuck on the circuit board.