JP2000274411A - Slide type thread-mount construction and member fixing method utilizing the construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive slide type thread-mount construction in which a member fixing operation can be easily performed for a short period of time and parts can be shared, and a member fixing method utilizing the construction. SOLUTION: A slide type thread-mount construction is such that a screw member 1 having a male screw on a peripheral surface of a cylindrical screw body 4 can be threadably attached to two nut members 2 and 3 which include female screws for threadedly engaging with the male screw on inner walls of nut bodies 10 and 18 having insertion holes into which the screw member 1 is inserted. The peripheral surface of the screw body 4 has the male screw 7 between a plurality of planes extending substantially parallel with the axis of the screw body 4 and adjacent planes, while the inner walls of the nut bodies 10 and 18 have the female screws 14, respectively, while can threadedly engage with the male screw 7 between a plurality of guide recesses having no threaded engagement with the male screw 7 of the screw body 4 and adjacent guide recesses.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding type screwing structure which can be used for fixing a member which moves in the axial direction of a rod-shaped screw member, and a member fixing method using the structure.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open Publication No.
Japanese Patent Application Laid-Open No. 4 (1999) -2004 proposes a fine adjustment structure of a fixing member as shown in FIG.

The fine adjustment structure of the fixing member includes two rods 80, an arrangement plate 81 provided between the rods 80, and an adjustment screw 82 provided at the center of the arrangement plate 81 so as to be able to advance and retreat.
And a fixing member 84 located on the head 83 of the adjusting screw 82. By adjusting the adjusting screw 82, the fixing member 84 can be moved along the rod 80 without tilting.

[0004]

However, in the above-mentioned fine adjustment structure of the fixing member, in order to fix the fixing member 84 at an arbitrary position, the arrangement plate 81 is moved to an arbitrary position and the adjusting screw 82 is moved. Fine adjustment was required.

Further, since it takes time to move the fixing member 84, a rod 80 as short as possible is selected according to the equipment, and the length of the rod 80 changes according to the equipment. There was a problem that it could not be shared.

Accordingly, the present invention has been made in view of the above-mentioned problems in the prior art, and it is possible to easily fix a member in a short time and to use an inexpensive slide in which components can be shared. It is an object of the present invention to provide a type screwing structure and a member fixing method using the structure.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a screw member having a male screw on an outer peripheral surface of a cylindrical screw body and an insertion hole through which the screw member is inserted are provided. A slide-type screwing structure for screwing two nut members having a female screw screwed with the male screw to an inner wall surface of the provided nut main body, wherein an outer peripheral surface of the screw main body is arranged with respect to an axis of the screw main body. A plurality of substantially parallel flat portions, and a female screw portion between the adjacent flat portions, and an inner wall surface of the nut main body is adjacent to a plurality of guide grooves not screwed with the male screw portion of the screw main body. A female screw portion that can be screwed with the male screw portion is provided between the guide grooves.

According to the first aspect of the present invention, the male screw portion and the female screw portion are screwed with each other, the flat portion of the screw member escapes the female screw portion of the nut member, and the guide groove of the nut member is formed by the screw member. Release the male screw part of. Therefore, if the flat portion corresponds to the female screw portion and the male screw portion corresponds to the guide groove, the nut member is screwed to a desired position without rotating on the screw member and without screwing. It can slide in the axial direction of the main body. Accordingly, the operation of moving the nut member to a predetermined position can be performed easily and quickly as compared with the related art.

According to a second aspect of the present invention, the flat portion and the male screw portion are arranged at regular angles with respect to the axial direction.

[0010] With this configuration, the flat portion and the male screw portion are positioned at a predetermined angle around the axis of the screw main body, so that the flat portion and the male screw portion are alternately arranged on the screw main body. for that reason,
If the slid nut member is rotated by a certain angle in the screwing direction, the nut member and the screw member can be screwed. When the nut member is rotated by a predetermined angle after the screwing, the screwed state can be released.

The invention according to claim 3 is characterized in that the flat portion is formed with a depression extending in parallel with the axial direction.

Thus, the space between the flat portion of the screw member and the female screw portion of the nut member is increased, so that the nut member can be slid reliably without damaging the female screw portion during sliding.

According to a fourth aspect of the present invention, of the two nut members, an engaging portion protrudes from a contact surface of a first nut member that contacts a second nut member screwed to the screw member. In addition, an engaged portion to be engaged with the engaging portion after the first nut member is screwed is formed on a contact surface of the second nut member.

Thus, after the first nut member is screwed to the screw member, the engaging portion of the first nut and the engaged portion of the second nut are engaged. Therefore, when the first nut member comes into contact with the second nut member that is not screwed to the screw member, the engaging portion is not engaged with the engaged portion. Thus, after the first nut member is screwed to the screw member, it can be confirmed whether the second nut member is screwed to the screw member by checking whether the engaging portion is engaged with the engaged portion. .

According to a fifth aspect of the present invention, there is provided an upright wall in which the engaging portion is raised from a contact surface of the first nut member.
A locking piece coupled so as to intersect with the upright wall, wherein the engaged portion is mounted on the contact surface of the second nut member when the first nut member 2 is screwed. It is characterized by comprising an introduction hole formed corresponding to the trajectory of the wall, and an engagement hole formed in the introduction hole corresponding to the trajectory of the locking piece.

According to the present invention, when the first nut member is screwed, the locking piece moves in the engagement hole as the upright wall is guided by the introduction hole. Also, it intersects the introduction hole and the engagement hole. Thus, the standing wall does not fall out of the introduction hole. That is, after the first nut member is screwed, the engagement portion can be prevented from coming off the engaged portion.

According to a sixth aspect of the present invention, there is provided a method of fixing a member using the screw member, the first nut member, and the second nut member according to any one of the first to fifth aspects. On the screw member inserted in the hole, the first
A nut member and a second nut member are slid and screwed to the screw member in a state where the second nut member is abutted against the member, and a state where the first nut member is abutted against the second nut member. While screwed to the screw member,
The first nut member and the second nut member are engaged with each other.

According to the sixth aspect of the present invention, the first nut member and the second nut member slide on the screw member toward the member to be fixed, so that the first nut member and the second nut member are quickly moved as compared with the related art. The first nut member and the second nut member can be moved to desired positions.

Further, a screw member is screwed in a state in which the second nut member abuts against a member to be fixed, and a screw member is screwed in a state in which the first nut member abuts on the second nut member. The engaging portion is engaged with the engaged portion. Therefore, the first
The nut member can reinforce the screwed state of the second nut member.
Thus, for example, even if there is play (gap) between the fixed member and the second nut member, the play can be eliminated by further rotating the screwed second nut member.

Further, since the first nut member and the second nut member can be slid and moved on the screw member without rotating, for example, even if the shape (size) of the fixed member becomes large (long), its size can be increased. Accordingly, the moving amounts of the first nut member and the second nut member can be easily adjusted. Thereby, the size (length) of the screw member can be made common as compared with the related art. At the same time, the first nut member and the second nut member can be shared.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific example of an embodiment of a slide type screwing structure according to the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the sliding screw structure comprises a screw member 1 and a first nut member 2 and a second nut member 3 which can be slidably screwed to the screw member 1. You.

As shown in FIG. 1 and FIG.
Is composed of a cylindrical screw body 4, a pair of flat portions 6 formed parallel to the axial direction of the screw body 4, and a male screw portion 7 defined by the flat portions 6. Male thread part 7
Are arranged spirally with respect to the outer peripheral surface, the pair of flat portions 6 oppose the outer peripheral surface, and the male screw portion 7 is disposed between the pair of flat portions 6. The flat part 6 and the male screw part 7 are arranged at every 90 degrees with respect to the central axis 8 of the screw main body 4. still,
As shown in FIG. 3, it is also possible to form a depression 19 in the plane portion 6.

As shown in FIGS. 1 and 4, the first nut member 2 includes a nut body 10 having an insertion hole 11 into which the screw member 1 is inserted, and a pair of guides formed on the inner wall surface of the nut body 10. It is composed of a groove 13 and a female screw portion 14 formed by the guide groove 13. The female screw part 14 is screwed with the male screw part 7 of the screw member 1.

The pair of guide grooves 13 are formed in a concave shape in cross section in parallel with the axial direction of the screw body 4, and are opposed to the inner wall surface. The guide groove 13 is set to a depth such that the male screw portion 7 of the screw body 4 can escape. The female screw portion 14 is arranged between the pair of guide grooves 13, and the flat portion 6 is configured to be movable above the female screw portion 14. Further, the nut body 1 with respect to the second nut member 3
The engagement portion 15 is provided on the zero contact surface 10a.

As shown in FIG. 5, the engaging portion 15 is composed of an upright wall 16 rising upward from the contact surface 10a of the nut body 10 and a locking piece 17 connected to the upright wall 16. Be composed. The intermediate portion 17a of the locking piece 17 and the free end 16a of the upright wall 16 are joined in a T-shape. The locking piece 17
And the upright wall 16 can be connected in an L-shape. Further, it is also possible to couple the locking piece 17 to the intermediate portion of the upright wall 16.

As shown in FIGS. 1 and 6, the second nut member 3 has a nut body 18 having an insertion hole 11 into which the screw member 1 is inserted, and a pair of guides formed on the inner wall surface of the nut body 18. It is composed of a groove 13 and a female screw portion 14 formed by a pair of guide grooves 13. The contact surface 18a of the nut body 18 with the first nut member 2 has a first
An engaged portion 20 for the engaging portion 15 of the nut member 2 is provided.

As shown in FIG. 7 to FIG.
0 is an introduction hole 21 formed in an arc shape with a central angle of 90 degrees.
And an engagement hole 22 provided in the introduction hole 21. The introduction hole 21 and the engagement hole 22 are orthogonal to each other and formed in an inverted T-shaped cross section. The introduction hole 21 is arranged outside the guide groove 13 and along the guide groove 13. At one end of the introduction hole 21, an engagement portion 15, particularly, an insertion hole 23 for introducing the locking piece 17 into the engagement hole 22 is formed, and at the other end, the locking piece 17 is engaged. Conversely, the engaged portion 20 is formed on the first nut member 2 and the second nut member 3
It is also possible to provide an engaging portion 15 on the rim.

Next, returning to FIG. 1, the fixing plate 26 is formed by using the screw member 1 and the two nut members 2 and 3.
The method of fixing the screw by sliding will be described.

The screw member 1 is inserted into the screw hole 26a of the fixing plate 26, and the screw member 1 is moved to a predetermined position. The second nut members 3 are inserted into the screw member 1 from the contact surface 18a side and the opposite surface 18b side. At this time, the guide groove 13 of the second nut member 3 and the male screw portion 7 of the screw member 1 correspond to each other, and the female screw portion 14 of the second nut member 3 and the screw member 1
And the plane portion 6 of FIG. The second nut member 3 is slid to the fixing plate 26 and the opposite surface 18 of the second nut member 3 is
b against the front surface 26b of the fixing plate 26. By rotating the second nut member 3 by 90 degrees in the screwing direction, the female screw portion 14 of the second nut member 3 is screwed to the male screw portion 7 of the screw member 1.

The guide groove 13 of the first nut member 2
And the male screw part 7 of the screw member 1, and the female screw part 14 of the first nut member 2 and the flat part 6 of the screw member 1.
Then, the first nut member 2 is inserted into the screw member 1 from the contact surface 10a side. The first nut member 2 is slid to the second nut member 3, and the contact surface 10 a of the first nut member 2 abuts against the contact surface 18 a of the second nut member 3. Then, the engaging portion 15 (the upright wall 16 and the locking piece 17) in FIGS.
Will be introduced. Then, as shown in FIGS. 10 and 11, by rotating the first nut member 2 by 90 degrees in the screwing direction, the female screw portion 14 of the first nut member 2
Is screwed into the male screw portion 7 of the helmet. At the same time, the standing wall 16
Is rotated 90 degrees in the screwing direction along the introduction hole 21, and the locking piece 17 is engaged with the engagement hole 22. Thereby, the first nut member 2 and the second nut member 3 are integrated.

Similarly, the back surface 26 c of the fixing plate 26 is fixed by the second nut member 3 and the first nut member 2.

As described above, by inserting the first nut member 2 and the second nut member 3 into the screw member 1 and then sliding along the screw member 1 without rotation, the first nut member 2 and the second nut member 3 can be easily moved to the fixing plate 26. The first nut member 2 and the second nut member 3 can be moved. Then, after the movement, the first nut member 2
By rotating the second nut member 3 by 90 degrees in the screwing direction, the first nut member 2 and the second nut member 3 can be easily screwed to the screw member 1. For this reason, the first
There is no need to move the nut member 2 and the second nut member 3 to predetermined positions. Thereby, the operation of fixing the fixing plate 26 with the screw member 1 and the first and second nut members 2 and 3 can be performed quickly.

Next, an application example of the slide screwing method according to the present invention will be described.

As shown in FIGS. 1 and 12, a device 28 is fixed to the base plate 27. The device 28 is provided with a connector 29. Base plate 27
, Two screw members 1 penetrate therethrough. A U-shaped substrate 30 is fixed to one end of each of the two screw members 1. Further, a connection hole 31 for inserting the connector 29 is formed in the substrate 30. A mating connector 32 that is electrically connected to the connector 29 inserted into the connection hole 31 is arranged. The mating connector 32 is fixed to another device 33.

The first nut member 2 and the second nut member 3 are sequentially inserted as a set from the other end of the screw member 1, and the substrate 3
Place on the 0 side. At this time, the contact surfaces 10a and 18a of the first nut member 2 and the second nut member 3 face each other.
The plate hole 27a of the base plate 27 is inserted into the screw member 1, and the base plate 27 is moved along the axial direction of the screw member 1 to a position where the connector 29 and the mating connector 32 are electrically connected. Similarly, with the second nut member 3 and the first nut member 2 as other sets,
Insert

Next, the base plate 27 is moved to the connection hole 31 side. The base plate 27 is held by the screw member 1 so that the connector 29 can be inserted into the connection hole 31 and the electrical connection with the mating connector 32 can be maintained.

Then, by sliding the second nut member 3 onto the screw member 1, the opposite surface 18 b of the second nut member 3 abuts against the right side surface 27 b of the base plate 27. The second nut member 3 is rotated by 90 degrees in the screwing direction and screwed into the screw member 1.

The first nut member 2 is slid on the screw member 1 so that the contact surface 18a of the second nut member 3 and the contact surface 10a of the first nut member 2 abut each other. Then, the engaging portion 15 of the first nut member 2 is inserted into the insertion hole 2 of the second nut member 3.
3 is inserted. By rotating the first nut member 2 by 90 degrees in the screwing direction, the upright wall 16 moves in the introduction hole 21. The first nut member 2 is screwed into the screw member 1, and the locking piece 17 is engaged with the other end of the engagement hole 22.
Thereby, the right side surface 27b of the base plate 27 is fixed.

Similarly, the opposite surface 1 of the second nut member 3
8b is inserted into the screw member 1 and slid on the screw member 1 to the left side surface 27c of the base plate 27. With the opposite surface 18b abutting against the left side surface 27c, the second nut member 3 is rotated by 90 degrees in the screwing direction and screwed into the screw member 1. From the contact surface 10a side of the first nut member 2, the screw member 1
And slides on the screw member 1 until it comes into contact with the contact surface 18a of the second nut member 3. When the first nut member 2 abuts on the second nut member 3, the engaging portion 15 of the first nut member 2 is inserted into the insertion hole 23 of the second nut member 3.
Introduced within. By rotating the first nut member 2 by 90 degrees in the screwing direction, the upright wall 16 slides in the introduction hole 21. The first nut member 2 is screwed into the screw member 1, and the locking piece 17 is engaged with the other end of the engagement hole 23. Thereby, the left side surface 27 c of the base plate 27 is fixed by the first nut member 2 and the second nut member 3.

As described above, both surfaces 27 b and 27 c of the base plate 27 are sandwiched by the second nut member 3. Then, the first nut member 2 abuts on the second nut member 3 and engages with the second nut member 3 so as to reinforce the screwed state of the second nut member 3 with the screw member 1 and are integrated. ing.

At this time, if there is play (gap) between the right side surface 27b of the base plate 27 and the second nut member 3, the second nut member 3 is further rotated 90 degrees in the screwing direction. Thereby, the base plate 27 can be fixed without play.

In particular, even when the shape (size) of the device 28 is increased due to electrical characteristics or the like, the device 28
Regardless of the size of the first nut member 2 and the second nut member 3 can be used as they are. That is, the screw member 1
And the first nut member 2 and the second nut member 3 can be used in common. Therefore, the manufacturing cost of the slide screw structure can be reduced.

Next, another example of the use of the sliding screw structure according to the present invention will be described.

As shown in FIG. 1 and FIG.
Is formed with a fixing hole 35a, and a U-shaped substrate 36 is fixed thereto. The device 37 is fixed to the fixing hole 35a. Since the device 37 is frequently removed, the device 37 is simply inserted into the fixing hole 35a without being screwed, and is fixed only by being held down by the screw member 1.

A screw hole 36a for inserting the screw member 1 is formed in the substrate 36. Fixing hole 35a
Even when the screw member 1 is fixed to the substrate 36 with the first nut member 2 and the second nut member 3 in a state where the device 37 is pushed into the substrate 37, the screw member 1 is easily and quickly fixed to the substrate 36 in the manner described above. be able to.

In this embodiment, the flat portion 6 and the male screw portion 7
Are arranged every 90 degrees with respect to the axis of the screw body 4,
The male screw part 7 and the female screw part 14 can be screwed to each other by rotating the nut member 2 (3) by 90 degrees. That is, the plane portion 6
And the external thread portion 7 at an arbitrary angle θ with respect to the axis (0 degree <θ
(≦ 90 degrees), the male screw part 7 and the female screw part 14 can be screwed together by rotating the nut member 2 (3) by an angle θ.

[0048]

As described above, according to the first aspect of the present invention, without rotating each nut member on the screw member,
In addition, since the screw body can be slid in the axial direction to a desired position without being screwed, the operation of moving the nut member to a predetermined position can be performed easily and quickly as compared with the related art. Since it is not necessary to change the length of the screw member accordingly, it is possible to provide an inexpensive slide-type screw-in structure in which components can be shared.

According to the second aspect of the present invention, the nut member and the screw member can be screwed by rotating the slid nut member in the screwing direction by a predetermined angle. Since the wearing state can be released, it is possible to provide a slide type screwing structure that can easily and quickly perform the operation of moving the nut member to a predetermined position.

According to the third aspect of the present invention, it is possible to provide a slide type screwing structure capable of extending the life of the nut member because the nut member can be slid reliably without damaging the female screw portion. it can.

According to the fourth aspect of the present invention, after the first nut member is screwed to the screw member, the second nut member is screwed to the screw member depending on whether the engaging portion is engaged with the engaged portion. Since it is possible to check whether or not the screw is worn, it is possible to provide a sliding screw structure that can perform the screwing operation more reliably.

According to the fifth aspect of the present invention, after the first nut member is screwed, the engagement portion of the first nut member can be prevented from coming out of the second nut member engaged portion, so that the reliability is improved. And a high-sliding screw structure can be provided.

According to the member fixing method of the invention of claim 6,
The first nut member and the second nut member can be quickly moved to desired positions as compared with the related art, and even if there is play (gap) between the fixed member and the second nut member, the screwed state is achieved. By further rotating the second nut member, the play can be eliminated, and the size (length) of the screw member can be reduced.
The first nut member and the second nut member can be shared.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a sliding screw connection structure according to the present invention.

2 (a) is a plan view and FIG. 2 (b) is a cross-sectional view showing a screw member in the sliding screw structure of FIG.

FIG. 3 is a rear view showing a modified example of the screw member in the slide screw-in structure of FIG. 1;

FIGS. 4A and 4B show a first nut member in the slide screw-in structure of FIG. 1, wherein FIG. 4A is a front view, and FIG.
A line sectional view, and (c) is a side view.

FIG. 5 is an enlarged view of an engagement portion of the first nut member of FIG.

FIGS. 6A and 6B show a second nut member in the slide screw-in structure of FIG. 1, wherein FIG. 6A is a plan view and FIG. 6B is XX of FIG.
A line sectional view, (c) is a front view.

FIG. 7 is an enlarged view of an engaged portion of the second nut member of FIG. 6 (a).

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a sectional view taken along line CC of FIG. 7;

FIG. 10 is a schematic cross-sectional view showing a state where an engaging portion of a first nut member and a second nut member engaged portion are engaged.

11 is a perspective view showing a state in which a fixing plate is fixed to the screw member by screwing a first nut member and a second nut member to the screw member in the sliding screw structure of FIG. 1; .

FIG. 12 is a diagram showing an application example of the member fixing method according to the present invention.

FIG. 13 is a view showing another application example of the member fixing method according to the present invention.

FIG. 14 is a view showing an example of a conventional fine adjustment structure of a fixing member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screw member 2 1st nut member 3 2nd nut member 4 Screw main body 6 Flat part 7 Male screw part 8 Center axis 10, 18 Nut main body 10a, 18a, 18b Contact surface 11 Insertion hole 13 Guide groove 14 Female screw part 15 Engagement Part 16 Standing wall 17 Engagement piece 19 Depression 20 Engaged part 21 Introduction hole 22 Engagement hole 26 Fixing plate 27 Base plate 28, 33, 37 Device 29, 32 Connector 30, 36 Board 31 Connection hole 35 Panel

Claims (6)

[Claims] 1. A nut having a screw member having a male screw on the outer peripheral surface of a cylindrical screw body, and a female screw screwing with the male screw on an inner wall surface of the nut body having an insertion hole through which the screw member is inserted. An outer peripheral surface of the screw body, a plurality of flat portions extending substantially parallel to the axis of the screw body, and a male screw between the adjacent flat portions. The inner wall surface of the nut main body includes a plurality of guide grooves that do not screw with the male screw part of the screw main body, and a female screw part that can be screwed with the male screw part between adjacent guide grooves. A sliding screw structure. 2. The slide-type screwing structure according to claim 1, wherein said flat portion and said male screw portion are arranged at predetermined angles with respect to an axial direction. 3. The sliding screw structure according to claim 1, wherein a recess is formed in the flat portion so as to extend parallel to an axial direction of the screw body. 4. An engaging portion protrudes from a contact surface of a first nut member, which contacts a second nut member screwed to the screw member, of the two nut members. 4. The engaged surface of the two nut members, the engaged portion being engaged with the engaging portion after the first nut member is screwed, is formed. 5. Sliding screw structure. 5. The method according to claim 1, wherein the engaging portion comprises an upright wall rising from a contact surface of the first nut member, and a locking piece coupled to the upright wall so as to intersect with the upright wall. An introduction hole formed by the engaged portion on the contact surface of the second nut member and corresponding to the trajectory of the upright wall when the first nut member is screwed; and the locking piece in the introduction hole. 5. An engaging hole formed to correspond to the orbit of (a).
The slide-type screwing structure as described. 6. A method for fixing a member using the screw member, the first nut member, and the second nut member according to claim 1, wherein the screw member is inserted into a screw hole of the member. Above, the first nut member and the second nut member are slid, and screwed to the screw member in a state where the second nut member abuts on the member, and the first nut member is connected to the second nut member. A member fixing method, wherein the first nut member and the second nut member are engaged with each other while being screwed to the screw member in a state where the first nut member is in contact with the first nut member.