TWM501333U - Pen shape screwdriver - Google Patents

Description

Pen type screwdriver

This creation involves a pen type screwdriver.

In Taiwan Patent No. 408657, a pen-type screwdriver is disclosed, which houses a tool set with a hollow body, and locks or loosens a screw, such as a screw or a bolt. The screw usually has a head with a recess in the shape of a recess, such as a hexagonal shape, a star shape, and other non-circular geometries.

The tool set includes multiple screwdriver heads. Wherein, a driving portion is formed at one end of each of the screwdriver heads, and the shape of the driving portion is also divided into a hexagonal shape, a star shape and other non-circular geometric shapes. The other end of the screwdriver head forms a joint, which is usually a hexagonal body that can be inserted into the socket of some manual, electric or pneumatic tools.

When installed, these screwdriver heads are placed one by one into the body. The connecting portion of each of the driver heads contacts the driving portion of the rear driver head, and the driving portion that supports the first driver head exposes the front end of the body.

However, the driving part of the first screwdriver head does not necessarily conform to the shape of the concave portion, and the two cannot obtain the concave-convex matching effect, so that the screwdriver can temporarily not drive the screw to perform the locking or unscrewing operation. Troubled into use.

Secondly, the remaining screwdriver head is stored in the body, and the outline of the driving portion cannot be clearly recognized. The first driver's head is withdrawn, and then inserted into the end of the body, and the driving portion of the second driver's head is pushed to expose the front end of the body to determine whether the shape of the recess is conformed.

If it still does not conform to the shape of the recess, it is necessary to take out the second screwdriver head, repeat the aforementioned insertion operation, and replace the next screwdriver head until the shape of the drive portion matches the concave portion. This type of swapping is quite cumbersome for a pen-type screwdriver.

Therefore, how to simplify the replacement action of the screwdriver head has become an urgent problem to be solved in this creation.

In view of this, the creator explored the problems of the prior art in depth, and after years of experience in R&D and manufacturing of related industries, actively sought solutions, and finally succeeded in developing a new pen-type screwdriver to improve the use of writing. Problem

The main purpose of this creation is to replace the original swapping mode with a push-type replacement structure, which is not only easy to operate, but also easy to select a suitable screwdriver.

Due to the above objectives, the pen-type screwdriver of the present invention comprises: a casing whose inner part is hollow, one end of the casing is regarded as a closed end, and the other end has a non-circular outlet, and the outer casing has a plurality of long holes and a plurality of a guiding groove, each long hole being located at a wall end adjacent to the closed end, Each guide groove is formed on the inner wall of the outer casing adjacent to the outlet; a reset structure is disposed in the outer casing, the reset structure includes a plurality of compression springs; and a plurality of driver head assemblies are collectively disposed in the outer casing, each of the screwdriver heads The assembly comprises a flexible member, a sub-head and a pressing member; the flexible member passes through the compression spring, one end of which is connected to the pressing member, and the other end is connected to the driver; the shape of the driver head substantially conforms to the outlet of the housing, and the screwdriver has a head The driving portion has a driving portion facing the outlet; the pressing member reciprocates relative to the outer casing according to the longitudinal direction of the long hole, and the driving portion is exposed to the outlet through the flexible member or is returned to the inner casing.

These screwdriver head assemblies alternately push out the driving portion, which is not only easy to operate, but also facilitates the identification of the shape of the driving portion, and selects a suitable screwdriver head to perform locking or unscrewing work.

Hereinafter, the purpose, structure and characteristics of the related embodiments will be described in detail based on the drawings, and it is believed that the techniques, means and functions adopted by the present invention can be obtained from an in-depth and specific understanding.

10‧‧‧ Screwdriver

20‧‧‧ Shell

21‧‧‧ top shell

22‧‧‧closed end

23‧‧‧ openings

24‧‧‧Internal space

25‧‧‧ long hole

26‧‧‧Threaded section

27‧‧‧ side wall

28‧‧‧Restrictions

29‧‧‧Operating room

30‧‧‧ bottom case

31‧‧‧ Guide slot

32‧‧‧In-shell space

34‧‧‧ Entrance

36‧‧‧Export

38‧‧‧External thread section

40‧‧‧Reset structure

42‧‧‧Compression spring

44‧‧‧Resist

46‧‧‧through hole

50‧‧‧Starter head assembly

52‧‧‧Flexible parts

54‧‧‧ screwdriver head

56‧‧‧ Drive Department

60‧‧‧Pressing parts

61‧‧‧Connecting section

62‧‧‧ Force Department

63‧‧‧ bottom column

64‧‧‧Fin

65‧‧‧ cone

Figure 1 is a perspective view of a preferred embodiment of the present screwdriver.

Figure 2 is an exploded view of the screwdriver.

Figure 3 is a perspective view of the top case.

Figure 4 is a perspective view of the bottom case.

Figure 5 is a combined sectional view of the screwdriver.

Figures 6 and 7 are perspective views of the pressing members at different angles.

Fig. 8 is a cross-sectional view taken along line A-A of Fig. 5.

Figure 9 is a schematic view of the use of a screwdriver.

Fig. 10 is a cross-sectional view taken along line B-B of Fig. 9.

Referring to Figures 1 and 2, the specific construction of a preferred embodiment of the screwdriver 10 is illustrated. The screwdriver 10 includes a housing 20, a reset structure 40 and four driver head assemblies 50 that are hollow inside for receiving the reset structure 40 and all of the driver head assemblies 50.

In the present embodiment, the outer casing 20 includes a top case 21 and a bottom case 30. The top case 21 is coupled to the bottom case 30 and combined to form a substantially pen-shaped profile.

It is not difficult to understand from Fig. 3 that the top case 21 is also hollow, with one end being considered a closed end 22 and the other end having an opening 23. The inner space 24 of the top case 21 is inserted from the opening 23, and is turned away by four long holes 25 formed in the wall surface of the top case 21. Each elongated hole 25 is adjacent to the closed end 22 of the top case 21.

In addition, the top case 21 has an internal thread section 26, a plurality of side walls 27, and a plurality of restricting portions 28. The internal thread section 26 is formed on the inner face of the top case 21 while abutting the opening 23 of the top case 21. The side walls 27 are paired in two, and each pair of side walls 27 is located on both sides of the long hole 25, and each of the side walls 27 is swelled toward the inner space 24 of the top case 21. The restricting portion 28 is substantially perpendicular to the side wall 27, and the two are designed to be integrated. The restricting portion 28 has a length smaller than the side wall 27 and is spaced apart from the long hole 25.

Next, see Figure 4, the bottom case 30 is hollow One end is considered to be the inlet 34 and the other end is defined as the outlet 36, acting as a gateway for the outside of the inboard space 32 of the bottom case 30. The bottom case 30 also has an externally threaded section 38 and a plurality of guide slots 31. The outer threaded section 38 is formed on the outer surface of the bottom casing 30, and the inlet 34 of the bottom casing 30 is restricted from the center of the outer threaded section 38. One end of each of the guide grooves 31 is connected to the inlet 34 of the bottom case 30, and the other end is connected to the hexagonal outlet 36.

As shown in Fig. 5, when the inner and outer thread segments 26, 38 are locked, the top and bottom casings 21, 30 are detachably joined together so that the inner space 24 communicates with the inner casing space 32. In some embodiments, the position of the female thread segment is changed to the bottom shell, and the outer thread segment is converted to the top shell, also within the scope of this creation.

Referring back to Figure 2, the reset structure 40 includes four compression springs 42 and a barrier member 44. The barrier member 44 is cylindrical in shape and has four through holes 46, each of which extends through the barrier member 44. End face.

In Fig. 5, the barrier member 44 is inserted into the top case 21, and its circumferential surface is urged against the inner wall of the top case 21, so that the inner space 24 of the top case 21 is divided into two by the blocking member 44. At the same time, the closed end 22 of the top case 21 between the blocking members 44 is regarded as an operating chamber 29 through which the open holes 25 can be passed to the outside.

As can be appreciated from FIG. 2, each of the driver head assemblies 50 includes a flexible member 52, a sub-head 54 and a pressing member 60.

In the figure, the flexible member 52 is a tube body, and the tube body is bent and deformed by force, and when the external force is attenuated or disappears, according to the tube body Forcefully return to the original state. In some embodiments, the flexible member 52 is a solid stick or rod having a concave-convex structure at each end, such as a groove, a hole or a post.

The driver bit 54 has a hexagonal profile, one end of which extends as a drive portion 56 and the other end of which is concavely configured to fit over the end of the flexible member 52. In some embodiments, the end face 54 of the driver head 54 is raised with a short post for insertion into the nozzle of the flexible member 52.

In FIGS. 6 and 7, the pressing member 60 has an engaging portion 61 and a fin portion 64. A force receiving portion 62 is raised above the engaging portion 61, and a bottom pillar 63 is extended below the inserting portion, and the nozzle having the flexible member different from the screwdriver head is inserted. The fin portion 64 has a width smaller than the force receiving portion 62, and the two are located at different sides of the engaging portion 61. The fin portion 64 has two tapered blocks 65 which are located above and below the back surface of the fin portion 64.

As shown in Figures 5 and 8, the driver head assembly 50 is mounted inside the outer casing 20. The top end of the flexible member 52 passes through the through hole 46 of the blocking member 44 and the compression spring 42 , and the supporting pressing member 60 stands in the operation chamber 29 of the top case 21 . One end of the compression spring 42 abuts against the end surface of the blocking member 44, and the other end is pressed against the pressing member 60 to provide a force required for the pressing member 60 to be displaced in the direction of the closed end 22 until the force receiving portion 62 touches the upper wall of the long hole 25. until.

In addition, the bottom end of the flexible member 52 is located in the inner space 32 of the bottom case 30, and the support head 54 is suspended in the corresponding guiding groove 31, so that the driving portion 56 is not easily rotated relative to the bottom case 30 toward the outlet 36.

In particular, the two opposing restricting portions 28 have a large separation distance The width of the fin portion 64 is smaller than the width of the engaging portion 61 and the force receiving portion 62. Therefore, the engaging portion 61 is blocked by the restricting portion 28, and the force receiving portion 62 is partially exposed outside the long hole 25. At the same time, the fins 64 pass between the two restricting portions 28, and the supporting cones 65 enter the operating chamber 29 near the center. Therefore, the fin portion 64 is blocked by the two restricting portions 28, so that the pressing member 60 is not easily inclined to both sides.

As shown in Figs. 9 and 10, during use, the pressing member 60 on the right side receives an external force and comes down the long hole 25 along the longitudinal direction of the restricting portion 28. Since the length of the force receiving portion 62 is smaller than the distance between the short side of the long hole 25 and the distance between the restricting portion 28 and the side wall 27, the pressing member 60 is biased toward the operation chamber 29, so that the force receiving portion 62 is blocked by the restricting portion 28. Unable to return to the original location.

At this moment, not only the taper 65 moves to the lower side of the other fins 64 as the pressing member 60 moves, but also the compression spring 42 is pressed and deformed by the downwardly moving pressing member 60, and the kinetic energy required for the reset is accumulated. At the same time, under the restriction of the wall surface of the guide groove 31, the driver bit 54 is pushed by the flexible member 52 to enter the outlet 36 of the bottom case 30, so that the driving portion 56 is exposed outside the screwdriver 10.

The shape of the outlet 36 is substantially the same as that of the driver bit 54, so that the torque of the screwdriver 10 is transmitted to the driver head 54, which drives the driving portion 56 to rotate in the same direction, which facilitates the locking or unscrewing operation.

When the remaining pressing members 60 repeat the above operations, the different screwdriver heads 54 can be replaced. Briefly, the pressing member 60 on the left side is forced to move downward, blocked by the restricting portion 28 and positioned below the elongated hole 25, so that the fin portion 64 comes to the center of the operating chamber 29 while pushing the pressing member 60 on the right side of the drawing. The blockage of the restriction portion 28 is lost, and the movement accumulated in the compression spring 42 Can be released, push the push member 60 on the right side of the figure back to the original position.

This embodiment adopts a pressing replacement structure, which is not only easy to operate, but also easier to select a suitable screwdriver head than the prior art.

The above embodiments are merely illustrative of the present invention and are not intended to limit the creation. Various changes, modifications, and applications derived from the above-described embodiments will be apparent to those skilled in the art.

10‧‧‧ Screwdriver

20‧‧‧ Shell

21‧‧‧ top shell

22‧‧‧closed end

24‧‧‧Internal space

25‧‧‧ long hole

26‧‧‧Threaded section

27‧‧‧ side wall

28‧‧‧Restrictions

29‧‧‧Operating room

30‧‧‧ bottom case

31‧‧‧ Guide slot

32‧‧‧In-shell space

36‧‧‧Export

38‧‧‧External thread section

40‧‧‧Reset structure

42‧‧‧Compression spring

44‧‧‧Resist

46‧‧‧through hole

50‧‧‧Starter head assembly

52‧‧‧Flexible parts

54‧‧‧ screwdriver head

56‧‧‧ Drive Department

60‧‧‧Pressing parts

61‧‧‧Connecting section

62‧‧‧ Force Department

63‧‧‧ bottom column

64‧‧‧Fin

65‧‧‧ cone

Claims (6)

A pen type screwdriver (10) comprising: a casing (20) having a hollow interior, the casing (20) having a closed end (22) at one end and a non-circular outlet (36) at the other end. The outer casing (20) has a plurality of long holes (25) and a plurality of guiding grooves (31), each long hole (25) is located at a wall surface of the outer casing (20) adjacent to the closed end (22), and each guiding groove (31) is formed. Adjacent to the outlet (36) on the inner wall of the outer casing (20); a reset structure (40) disposed in the outer casing (20), the reset structure (40) includes a plurality of compression springs (42); Formed (50), jointly disposed in the outer casing (20), each of the driver head assemblies (50) includes a flexible member (52), a sub-head (54) and a pressing member (60); and a flexible member ( 52) passing through the compression spring (42), one end of which is connected to the pressing member (60), and the other end is connected to the driver head (54); the shape of the driver head (54) substantially conforms to the outlet (36) of the outer casing (20), the screwdriver head (54) has a driving portion (56), the driving portion (56) faces the outlet (36); the pressing member (60) reciprocates relative to the outer casing (20) according to the length direction of the long hole (25), and transmits the flexible member (52) The associated drive (56) is exposed to the outlet (36) or retracted into the housing (20). The pen type screwdriver (10) according to claim 1, wherein the outer casing (20) comprises a top case (21) and a bottom case (30); and the top case (21) has one end closed. End (22), The other end has an opening (23) which enters the inner space (24) of the top case (21) from the opening (23) and is separated by the long hole (25) of the case wall; the end of the bottom case (30) is the outlet ( 36), the other end has an inlet (34), respectively leading to the outside, and the guiding groove (31) is arranged on the inner wall of the inner space (32) of the bottom case (30). The pen type screwdriver (10) according to claim 2, wherein the top case (21) has an internal thread section (26) formed on the inner surface of the top case (21) and adjacent to the opening (23); The bottom casing (30) has an externally threaded section (38) for engaging the internally threaded section (26) of the top casing (21) to provide a generally pen-like profile to the outer casing (20). The pen type screwdriver (10) according to claim 2, wherein the top case (21) has a plurality of side walls (27), two of which are a pair, and each pair of side walls (27) is located in the long hole. (25) Both sides; a plurality of restricting portions (28) each designed to be integral with the side wall (27), the length of which is smaller than the side wall (27) and spaced apart from the long hole (25) by a certain distance. The pen type screwdriver (10) according to claim 1, wherein the reset structure (40) further has a blocking member (44), and the blocking member (44) has a plurality of through holes (46); the blocking member is (44) mounted in the outer casing (20), allowing the flexible member (52) to pass through the corresponding through hole (46), so that the compression spring (42) is pressed by the blocking member (44) with the pressing member (60), providing Screwdriver head The force required to make a displacement of (50). The pen type screwdriver (10) according to claim 4, wherein the pressing member (60) has an engaging portion (61), and a receiving portion (61) has a receiving portion (62) extending below the engaging portion (61) a bottom post (63), the bottom member (63) is connected to the flexible member (52), the supporting pressing member (60) is stood in the top case (21); and a fin portion (64) having a width smaller than the force receiving portion (62) ), the two are located on different sides of the connecting portion (61), and have a taper block (65) on the back side of the fin portion (64), and the fin portion (64) passes between the two restricting portions (28) to support the taper block (65). Near the center of the top case (21).