JP3140150U - Screw cover and screw unit - Google Patents

Abstract

To suppress screw removal.
A head cover member that is rotatably engaged with a screw head without detaching from the screw head and a screw head and a head cover member do not rotate relative to each other. And integrating means for integrating. The integration means includes a through hole 20 formed in a side wall of the head cover member, and a head part of the screw and the head cover member that are detachable from the head cover member and inserted through the through hole. And an insertion member 4 to be integrated. Furthermore, the insertion member is inserted into the insertion hole 10 formed in the screw head corresponding to the through hole formed in the head cover member, so that the screw head and the head cover member are integrated. Make it.
[Selection] Figure 4

Description

  The present invention relates to a screw cover, and more particularly, to a screw cover that covers a screw head. The present invention also relates to a screw unit having this screw cover.

  Conventionally, a screw is used to connect the members to be fastened together. In general, the screw is formed of a single rod-shaped member, and a head body is formed at one end thereof, and a screw main body portion having a screw thread formed at the other end. The head portion of the screw is formed, for example, in the shape of a hexagonal nut, or a cross-shaped groove is formed on the top surface of the screw, so that it can be turned with a tool such as a spanner or a screwdriver. Thereby, the screw main-body part in which the screw thread was formed can be screwed in to a to-be-fastened member, or can be removed from a to-be-fastened member. Moreover, it is also possible to turn the screw head with bare hands by forming the outer diameter of the screw head larger. That is, the screw can be screwed in and out with bare hands.

Registered Utility Model No. 3128601

  However, depending on the location where the screw is used, it may be desired to prevent unnecessary removal of the screw by a third party. For example, when decorative items such as posters are housed in acrylic glass and displayed on the wall using screws, it is possible to prevent unnecessary removal of screws by persons other than those involved, such as internal posters. There is a need to prevent mischief and theft against the ornaments. However, in the screw as described above, since the top of the screw is exposed, it is possible to turn the screw with a tool or a bare hand, unnecessary removal of the screw, and theft of the decorative article, etc. There was a problem.

  Here, Patent Document 1 discloses a screw including a screw head mounting member which is another member on the head of the screw. According to this screw, the top surface of the screw can be closed, and removal of the screw can be suppressed.

  However, even with the screw disclosed in Patent Document 1, it is easy to remove the screw itself because the screw mounting member is easy to attach and detach. Therefore, it is difficult to solve problems such as theft of ornaments attached with screws.

  For this reason, the object of the present invention is to suppress the removal of the screw, which is the problem described above.

  Therefore, a screw cover that is one form of the present invention covers a head portion of a screw, and a head cover member that is rotatably engaged with the head portion of the screw without being detached from the head portion of the screw. The screw head and the head cover member are integrated with each other so as not to rotate with respect to each other.

  Since the present invention is configured as described above, it is possible to prevent unnecessary screw removal with a simple configuration, and at the same time, the head portion of the screw is covered with a head cover member, so that design is possible. It has the outstanding effect that improvement of can also be aimed at.

  The present invention is characterized by the structure of the screw cover that is attached to the head of the screw in order to prevent unnecessary removal of the screw.

  And the screw cover which is one form of the present invention covers a head portion of the screw, and a head cover member which is rotatably engaged with the head portion of the screw without being detached from the head portion of the screw. The screw head and the head cover member are integrated with each other so as not to rotate with each other.

  According to the above device, since the head cover member is rotatably engaged with the head of the screw covered, the screw cannot be rotated and unnecessary removal of the screw can be prevented. On the other hand, the screw itself and the head cover member are integrated by the integrating means, and the screw itself can be rotated by rotating the head cover member. Accordingly, the screws can be attached and detached as necessary. As a result, unnecessary screws can be prevented from being removed with a simple configuration, and at the same time, the head of the screw is covered with the head cover member, so that the design can be improved.

  In the screw cover, the integration means includes a through hole formed in the side wall of the head cover member, and a head portion and a head portion of the screw which are detachable from the head cover member and are inserted into the through hole. The structure of having the insertion member which integrates with a cover member is taken. Further, the insertion member is integrated with the head portion of the screw and the head cover member by passing through the insertion hole formed in the head portion of the screw corresponding to the through hole formed in the head cover member. The structure of letting it take is adopted.

  Thereby, the head cover member and the screw head can be integrated by inserting the insertion member through the through-hole formed in the head cover member, and the screw can be removed. And since the insertion member is detachable, when the head cover member is not inserted through the through hole, the head cover member is in a state of being freely rotatable on the head of the screw, thereby preventing unnecessary removal of the screw. Can do.

  In the above screw cover, the head cover member that covers the head of the screw includes a locking unit that locks the head so as not to be detached from the head of the screw to the top surface of the head of the screw. Take. The locking means is a substantially C-shaped or substantially O-shaped ring member, and on the inner wall surface on the opening side of the housing recess for housing the head of the screw formed on the head cover member. A fitting groove for fitting the outer periphery of the ring member is formed, and the head cover member is fitted from the head of the screw by fitting the ring member into the fitting groove in a state where the screw head is housed in the housing recess. A configuration is adopted in which the screw is locked so as not to be detached from the top surface side of the head of the screw.

  Accordingly, by disposing the head cover member covering the screw head with the ring member that is the locking member in a state where the head portion of the screw is housed in the housing recess of the head cover member. And can be engaged freely. Thereby, it becomes possible to attach to the head of an existing screw later, and versatility can be improved.

  In addition, a screw head unit according to another embodiment of the present invention includes a screw head member that engages with the top of a predetermined screw, and covers and covers the screw head member without detaching from the screw head member. A head cover member that is rotatably engaged with the screw head member, and an integrated unit that integrates the screw head member and the head cover member so as not to rotate with each other. Take.

  Furthermore, a screw unit according to another embodiment of the present invention includes a screw having a head and a head that covers the head of the screw and is rotatable with respect to the head of the screw without being detached from the head of the screw. A configuration is adopted in which an engaging head cover member and an integration unit that integrates the head portion of the screw and the head cover member so as not to rotate with each other are provided. And the said integration means is detachable with respect to the head cover member, the through-hole formed in the side wall of the head cover member, the insertion hole formed in the head part of the screw corresponding to this through-hole, and The insertion means for integrating the head portion of the screw and the head cover member by being inserted through the through hole and the insertion hole is employed.

  Even the screw head unit and the screw unit having the above-described configuration operate in the same manner as the above-described screw cover, so that the above-described object of the present invention can be achieved.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram illustrating a configuration of a screw. FIG. 2 is a diagram illustrating a configuration of the head cover member. FIG. 3 is a diagram illustrating a configuration of a C-ring equipped on the head cover member. FIG. 4 is a diagram showing the configuration of the screw unit. 5 to 6 are diagrams showing examples of using the screw unit.

[Constitution]
As shown in FIG. 4, the screw unit in the present embodiment includes a screw 1 and screw covers 2, 3, 4 that engage with a head 11 of the screw 1. The screw covers 2, 3, and 4 include a head cover member 2 that covers the head of the screw 1 and a C-ring 3 that locks the head cover member 2 so as not to be detached from the head 11 of the screw 1. And. Furthermore, the screw covers 2, 3, and 4 include a pin member 4 that integrates the head cover member 2 and the head 11 of the screw 1 so as not to rotate with each other. Hereinafter, each configuration will be described in detail.

  As shown in FIG. 1A, the screw 1 is integrally formed with a head 11 on one end side and a screw main body 13 on the other end side. The screw main body 13 is formed with a screw thread around the same as a general screw, and is screwed into a screw hole in which a female screw is formed in advance or a soft material such as wood. It is comprised so that fastening to a member is possible. The shape of the thread formed on the screw main body 13 may be any shape such as a tapping screw, a wood screw, or a machine screw.

  The screw head portion 11 is formed in a substantially cylindrical shape having a diameter larger than that of the screw main body portion 13. An insertion hole 10 having a predetermined depth is formed in the side surface of the screw head 11 as shown in the cross-sectional view of FIG. The insertion hole 10 is formed corresponding to the position of a through hole 20 formed in the head cover member 2 described later. Moreover, the diameter of the insertion hole 10 is substantially the same as a through-hole 20 described later, and is formed in a size that allows the insertion part 40 of the pin member 4 to be inserted. In FIG. 1, one insertion hole 10 is formed, but the number is not necessarily limited to one. For example, a plurality may be formed at equal intervals on the side surface of the head 11 of the screw 1.

  An intermediate portion 12 having a diameter larger than the diameter of the screw main body 13 and smaller than the diameter of the head 11 is formed between the head 11 of the screw 1 and the screw main body 13. .

  Next, the screw cover will be described with reference to FIGS. As shown in the front view of FIG. 2 (a) and the cross-sectional view of FIG. 2 (b), the head cover member 2 constituting the screw cover has an opening 25 on the bottom surface and is screwed upward from the bottom surface. It is formed in a cap shape having a housing recess 23 capable of housing one head 11. That is, the head cover member 2 is formed in a U-shaped cross section.

  A through hole 20 penetrating the side wall 22 is formed on the side wall 22 standing around the top surface 21 of the head cover member 2 and forming the receiving recess 23. The diameter of the through hole 20 is substantially the same as the diameter of the insertion hole 10 formed in the head portion 11 of the screw 1 described above, and is a diameter through which an insertion portion 40 of the pin member 4 described later can be inserted. Further, as shown in FIG. 4, the through hole 20 is formed at the head 11 of the screw 1 when the head 11 of the screw 1 is received in the receiving recess 23 of the head cover member 2. The insertion hole 10 is formed so as to have the same height. Therefore, the through hole 20 and the insertion hole 10 are formed on the same axis by rotating the head cover member 2 with respect to the head 11 of the screw 1. Note that the number of the through holes 20 is not necessarily limited to one. For example, a plurality may be formed at equal intervals on the side wall 22 of the head cover member 2.

  In addition, in the inner side surface (inner wall surface) of the housing recess 23 of the head cover member 2, the opening 25 portion and the head 11 on the inner bottom surface (the top surface) are accommodated in the vicinity of the opening 25. An annular fitting groove 24 having a larger diameter than the portion to be formed is formed. Specifically, the fitting groove 24 is formed at a position away from the inner bottom surface of the housing recess 23 toward the opening 25 by the height of the head 11 of the screw 1, and the groove width is C described later. The thickness of the ring 3 is almost the same. Thereby, the head cover member 2 can fit the C ring 3 (latching means) described later in the fitting groove 24 in a state where the head 11 of the screw 1 is housed in the housing recess 23. Thereby, the head 11 of the screw 1 can be accommodated in the accommodating recess 23 of the head cover member 2, and can be locked so that the head cover member 2 is not detached from the head 11 of the screw 1.

  The C ring 3 is, for example, a substantially C-shaped ring in which a part of an annular member is cut as shown in FIG. The outer diameter of the C ring 3 is substantially the same as the diameter of the fitting groove 24, and the inner diameter of the C ring 3 is the inner diameter of the housing recess 23 of the head cover member 2 and the outer diameter of the head 11 of the screw 1. It is formed smaller than. The C-ring 3 is partially cut so that its outer shape can be temporarily reduced by deforming its shape. For example, when the C-ring 3 is inserted from the opening 25 of the head cover member 2 and mounted in the fitting groove 24, the cut portion of the C-ring 3 is brought close to each other so that the outer diameter is reduced. The fitting groove 24 is mounted from the opening 25. The C ring 3 is not necessarily limited to the C shape. For example, it may be a substantially O-shaped ring member. Further, the head cover member 2 is detached from the head portion 11 of the screw 1 by using a member having another structure or by forming a claw portion inside the housing recess 23 and hooking the head portion 11 of the screw 1. It may be locked.

  Moreover, the said pin member 4 (insertion member) has the rod-shaped insertion part 40 in the one end side, as shown in FIG.4 (b). The diameter of the insertion portion 40 is slightly smaller than the through hole 20 formed in the head cover member 2 and the insertion hole 10 formed in the head 11 of the screw 1. The holes 20 and 10 are formed so as to be inserted. And as shown in FIG.4 (b), the head cover member 2 and the head 11 of the screw 1 mutually pass by inserting the insertion part 40 of the pin member 4 in the through-hole 20 and the insertion hole 10. As shown in FIG. It can be integrated so as not to rotate. That is, the through hole 20, the insertion hole 10, and the pin member 4 function as an integrated unit that cooperates to integrate the head cover member 2 and the head 11 of the screw 1.

[Example of use]
Next, a usage example of the screw unit will be described with reference to FIGS. FIG. 4 is a diagram showing the configuration of the screw unit as described above. FIG. 5 is a diagram illustrating a state when the panel is fixed to the wall surface, and FIG. 6 is a diagram illustrating an operation example of the screw unit.

  First, as shown in FIG. 4A, the head 11 of the screw 1 is accommodated in the accommodating recess 23 of the head cover member 2. Then, the C ring 3 is fitted into the fitting groove 24 from the opening 25 side of the head cover member 2. Thereby, the head 11 of the screw 1 can be kept in the head cover member 2 by the C ring 3 fixed in the fitting groove 24. At this time, the head cover member 2 can be prevented from detaching to the top of the screw 1, but the head cover member 2 is rotatable with respect to the head 11 of the screw 1. Thereby, a screw unit can be constituted.

  Then, as shown in FIG. 5, when exhibiting a panel P in which decorative items such as posters are accommodated on the wall surface W, the screw body 13 of the screw 1 of the screw unit is provided on the panel P and the wall surface W. It is inserted through the screw hole of the attached mounting portion 5. At this time, even if the head cover member 2 is pinched with the bare hand H and rotated, as shown in FIG. 6 (a), the head cover member 2 only rotates freely, and the screw 1 itself can be rotated. Therefore, the screw 1 cannot be attached. For this reason, as shown in FIGS. 4B and 6B, the insertion portion 40 of the pin member 4 is inserted into the through hole 20 of the head cover member 2 and the insertion hole 10 of the head 11 of the screw 1. . Then, the head cover member 2 and the head 11 of the screw 1 are integrated via the pin member 4, and the screw 1 rotates in conjunction with the rotation of the head cover member 2. Thereby, the screw main-body part 13 of the screw 1 can be screwed into the screw hole of the attachment part 5, and the panel P can be fixed to the wall W.

  Thereafter, by removing the pin member 4 from the head cover member 2 and the head 11 of the screw 1, the head cover member 2 is idled with respect to the head 11 of the screw 1 as shown in FIG. It becomes a state to do. Thereby, it is possible to prevent unnecessary removal of the screw 1 by a person other than the related person, and it is possible to prevent mischief or theft with respect to a decorative item such as a poster inside the panel P. At this time, since the head 11 of the screw 1 is covered with the head cover member 2, the design is improved by making the head cover member 2 into a shape with excellent design or applying a color or pattern. Can also be planned.

  When removing the panel P from the wall W, the pin member 4 is inserted into the through hole 20 formed in the through hole 20 of the head cover member 2 and the head 11 of the screw 1 in the same manner as described above. Thus, as shown in FIG. 6B, the screw 1 can be rotated.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIG. Although the case where the insertion hole 10 is formed in the head part 11 of the screw 1 was illustrated above, the insertion hole 10 is not formed in the head part 11 of the screw 1 in this embodiment. A female screw is formed in the through hole 20 formed in the head cover member 2, and a screw thread is formed in the insertion portion 40 of the pin member 4.

  Then, as shown in FIG. 7, the insertion portion 40 of the pin member 4 is screwed into the through hole 20 until the head portion 11 of the screw 1 is pressed by the tip portion. Thereby, the head cover member 2 and the head 11 of the screw 1 are fixed and integrated so as not to rotate with each other. According to this configuration, the above-described screw unit can be configured by mounting the above-described head cover member 2 and the C-ring 3 on the head of an existing screw. Therefore, versatility can be improved.

<Embodiment 3>
Next, a second embodiment of the present invention will be described with reference to FIG. This embodiment constitutes a screw head unit that is provided on the top side of the screw 201 having a screw thread formed on the head shown in FIG. Specifically, as shown in FIG. 8B, a screw head member 211 having a screw hole that engages with a screw thread formed on the head of the screw 201 is formed on the bottom surface side. The screw head member 211 is integrated with the screw 201 and plays the role of the head 11 of the screw 1 disclosed in the first embodiment. The screw head member 211 is formed with an insertion hole 210 corresponding to the through hole 20 formed in the head cover member 2, and the insertion hole 210 is formed so that the pin member 4 can be inserted. Yes.

  Further, the screw head unit in the present embodiment includes a head cover member 202 having a housing recess for housing the screw head member 211, a C ring 203, and a pin member (not shown). ing. In addition, since these structures are the same as that of the said Embodiment 1, the detailed description is abbreviate | omitted.

  As described above, according to the screw head unit of the present embodiment, the head described above so as to further cover it by attaching the screw head member 211 to the head of an existing screw having a screw thread formed on the head. The part cover member 202 and the like can be attached. Thereby, the screw head member 211 and the head cover member 201 are idled, and unnecessary screw removal can be prevented. On the other hand, by using the pin member, the screw can be rotated as described above, and the function as a screw is also achieved.

  INDUSTRIAL APPLICABILITY The present invention can be used for a screw whose head is exposed to the outside, such as used when attaching a panel to a wall, and has industrial applicability.

It is a figure which shows the structure of a screw. It is a figure which shows the structure of a screw cover member. It is a figure which shows the structure of C ring. It is a figure which shows the structure of a screw unit. It is a figure which shows the usage example of a screw unit. It is a figure which shows the usage example of a screw unit. It is a figure which shows the structure of the screw unit in Embodiment 2. FIG. It is a figure which shows the structure of the screw head unit in Embodiment 3. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screw 2 Head cover member 3 C ring 4 Pin member 10 Insertion hole 11 Head 13 Screw main-body part 20 Through-hole 21 Head top part 22 Side wall 23 Accommodation recessed part 24 Fitting groove 25 Opening part 40 Insertion part 100 Screw unit

Claims (8)

A head cover member that covers the head of the screw and engages the head of the screw rotatably without detaching from the head of the screw; and the head of the screw and the head cover member An integration means for integrating them so that they do not rotate with each other;
A screw cover characterized by comprising: The integration means includes a through-hole formed in a side wall of the head cover member, and is detachable from the head cover member and is inserted into the through-hole to thereby insert the screw head and the head cover member. And an insertion member for integrating the
The screw cover according to claim 1. The insertion member is inserted into an insertion hole formed in the head of the screw corresponding to the through hole formed in the head cover member, whereby the screw head and the head cover member Unite,
The screw cover according to claim 2. The head cover member that covers the head of the screw includes locking means for locking the head cover member so as not to be detached from the head of the screw to the top surface side of the head of the screw.
The screw cover according to claim 1, 2 or 3. The locking means is a substantially C-shaped or substantially O-shaped ring member,
A fitting groove into which the outer periphery of the ring member fits is formed on the inner wall surface on the opening side of the housing recess that houses the head of the screw formed in the head cover member,
By fitting the ring member into the fitting groove in a state where the head portion of the screw is housed in the housing recess, the head cover member is moved from the head portion of the screw to the top surface side of the head portion of the screw. Lock it so as not to leave
The screw cover according to claim 4. A screw head member that engages the top of the predetermined screw;
A head cover member that covers the screw head member and rotatably engages the screw head member without detaching from the screw head member;
Integration means for integrating the screw head member and the head cover member so as not to rotate with each other;
A screw head unit comprising: A screw having a head, a head cover member that covers the head of the screw and engages the screw head rotatably without detaching from the screw head; and the screw head And means for integrating the head cover member so as not to rotate with each other;
A screw unit characterized by comprising: The integration means includes a through hole formed in the side wall of the head cover member, an insertion hole formed in the head of the screw corresponding to the through hole, and a detachable attachment to the head cover member. An insertion means that is free and has an insertion means for integrating the head portion of the screw and the head cover member by being inserted into the through hole and the insertion hole,
The screw unit according to claim 7.

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