TW202126917A - Connector - Google Patents

Abstract

Disclosed is a connector comprising a body(10) which is column shaped and a fix element(20) including a plurality of bulges(21), wherein the plurality of bulges(21) are separated from each other and are formed on an outer peripheral surface of the body, and the outer peripheral surface is centered on the body. Therefore, the present invention improves the workability when connecting to objects, and also enables the connected objects to be fixed stably.

Description

Connector

The present invention relates to a connector for connecting a plurality of objects.

At present, it is known to connect a plurality of panels in a freely combined manner to form various types of modular furniture. For example, when assembling a shelf as a modular furniture, the shelf is formed by the top plate, the bottom plate and the left and right side plates, and the back plate is installed on the shelf, and a plurality of shelf plates are further installed on the inner side of the shelf. As a method for connecting such a plurality of members, a connector composed of a screw and a nut is generally known. Although such a connector can stably fix the connected components, there must be a procedure for tightening the screws with a tool.

In order to save the procedures as described above, for example, a connector is known, which is tied to the body of an insertion pin and forms annular protrusions in the circumferential direction at predetermined intervals with respect to the axial direction (for example, refer to Patent Document 1). According to this connector, by inserting it into the insertion hole provided in the target member, the ring-shaped protrusion and the inner surface of the insertion hole are in contact with each other in a pressed state, so that the members can be connected to each other without additional members. [Prior technical literature] 〔Patent Documents〕

Patent Document 1: Japanese Patent Application Laid-Open No. 2016-180478

〔The problem to be solved by the invention〕 However, when the above-mentioned connector is used, since the annular projection is formed around the entire circumference in the circumferential direction, the insertion resistance when the insertion pin is inserted into the insertion hole of the target member is relatively large. Therefore, depending on the material of the target member, a huge burden may be imposed on the penetration operation.

Therefore, in view of the above-mentioned problems, the present invention aims to provide a connector that can improve the workability when connecting a plurality of objects while also being able to fix the objects to each other in a stable connected state.

[Technical means to solve the problem] In order to achieve the above object, the present invention provides a connector that includes a cylindrical body and a fixing portion. The fixing portion includes a plurality of protrusions that are separated from each other and formed on an outer peripheral surface of the main body. The main body is the axis.

In addition, the protrusions are preferably formed to be separated from each other along the circumferential direction of the outer circumferential surface.

In addition, the protrusions are preferably formed at equal intervals along the circumferential direction of the outer circumferential surface.

In addition, it is preferable that the protrusions formed so as to be adjacent to each other in the circumferential direction of the outer circumferential surface are arranged to be offset from each other in the axial direction of the main body.

In addition, it is preferable that the protrusions formed so as to be adjacent to each other in the circumferential direction of the outer circumferential surface are arranged to be staggered with each other in the axial direction of the main body.

In addition, it is preferable that the protrusions formed in the opposite direction with the axis of the main body as the center are arranged at the same position in the circumferential direction of the outer circumferential surface.

In addition, the protrusions are preferably formed on the outer peripheral surface separated from each other along the axial direction of the main body.

In addition, the protrusion is preferably flat.

Furthermore, the connector preferably further includes a flange, which is connected to one end of the main body in the axial direction and includes a protruding portion, which extends to a diameter centered on the shaft of the main body The outer side of the direction protrudes beyond the outer peripheral surface of the main body.

In addition, the protrusion is preferably formed such that the front end of the protrusion is inclined toward the side of one end of the main body in the axial direction.

Yet another aspect of the present invention is a connector that uses the above-mentioned connector to connect.

[Compare the effects of previous technologies] According to the aspect of the present invention, the workability when connecting objects is improved, and the objects can be fixed to each other in a stable connected state.

Hereinafter, the preferred embodiments of the present invention will be described with reference to the drawings. In addition, the embodiment shown below is only an example, and various forms can be adopted within the scope of the present invention.

[The structure of the connector] The following describes the structure of the connector. As shown in FIG. 1, the connector 1 includes a body 10, a fixing part 20, a flange 30 and a guiding part 40. The connector 1 is made of, for example, a resin material. In addition, as the connector 1, various materials such as metal and rubber can be used.

>Ontology> The main body 10 constitutes the backbone of the connector 1, and is a part to be inserted into the insertion holes 100a and 200a, and the insertion holes 100a and 200a are formed in the objects 100 and 200 described later, respectively. The main body 10 has a substantially elliptical cylindrical shape with a straight section in cross section, and the outer diameter centered on the cylindrical axis (hereinafter also referred to as "axis") L is smaller than the inner diameters of the insertion holes 100a and 200a.

>Fixed part> As shown in FIG. 1, the fixing portion 20 is formed on the outer peripheral surface of the main body 10 on one end side in the axial direction. When the main body 10 is located in the insertion holes 100a and 200a, the fixing portion 20 abuts against the inner surfaces of the insertion holes 100a and 200a. The fixing portion 20 exerts an effect of fixing the main body 10 in the insertion holes 100a and 200a through the contact stress generated by the abutting portion. The fixing portion 20 has a plurality of protrusions 21 formed on the outer peripheral surface of the main body 10.

(Protrusion) As shown in FIG. 2, the protrusions 21 are separated from each other and formed on an outer peripheral surface of the main body 10, and the outer peripheral surface takes the axis L of the main body 10 as the axis. Specifically, the protrusions 21 are formed at approximately quarter-divided circumferential surface positions along the circumferential surface direction of the outer circumferential surface. As shown in FIG. 3, a plurality of protrusions 21 are formed at approximately equal intervals along the axis L of the main body 10 at positions in the circumferential direction that are roughly divided into four quarters. Hereinafter, the plural protrusions formed along the axis L at each circumferential surface direction position are also described as the protrusions 21a in the first row, the protrusions 21b in the second row, the protrusions 21c in the third row, and the protrusions 21d in the fourth row.

As shown in FIG. 3, the protrusion 21 is formed in a flat plate shape. The protrusion 21 has a pair of facing surfaces 21e, 21f and a side peripheral surface 21g. The pair of facing surfaces 21e and 21f are surfaces that face the extension side of the axis L and extend parallel to each other. The facing surface 21e faces the flange 30 described later, and the facing surface 21f faces the guide portion 40 described later. The side peripheral surface 21g extends between the pair of facing surfaces 21e and 21f. The protrusions 21 are formed so as to be adjacent to each other in the circumferential direction of the outer circumferential surface. The protrusions 21 are arranged to be offset from each other along the axis L of the main body 10. For example, the protrusions 21b of the second row adjacent to the protrusions 21a of the first row are gap positions arranged between the protrusions 21a of the first row in the circumferential direction. The other protrusions 21 adjacent to each other in the circumferential direction are also arranged in the same positional relationship. That is, the protrusions 21 are formed so that the protrusions 21 adjacent in the circumferential surface direction are arranged to be offset from each other in the axis L direction of the body 10.

As shown in FIG. 3, the protrusion 21 is formed so that the protrusions 21 in the opposing direction centered on the axis L of the main body 10 are arranged at substantially the same position in the circumferential direction of the outer circumferential surface. For example, the protrusions 21a in the first row and the protrusions 21c in the third row facing the protrusions 21a are arranged at substantially the same position in the circumferential direction of the outer circumferential surface. In order to realize this structure, it is preferable to form an even number of protrusions 21 (rows 21a, 21b, 21c, 21d of protrusions) in the circumferential direction of the outer circumferential surface.

As shown in FIG. 3, the protrusion 21 is formed so that it may incline toward the side of the flange 30 mentioned later from the bottom end to the front end along the axial direction of the main body 10. In other words, the protrusion 21 extends outward from the outer peripheral surface of the main body 10 in a direction away from the front end (end side of the guide portion 40 described later). The inclination angle of the protrusion 21 is set to be substantially the same for the protrusions 21a, 21b, 21c, and 21d in each row.

>Flange> As shown in FIGS. 1 and 3, the flange 30 is connected to one end side of the main body 10 in the axial direction. The flange 30 functions as a stopper to prevent the body 10 from being excessively inserted into the insertion holes 100a and 200a. The flange 30 has a substantially circular plate shape. The flange 30 includes a protruding portion 30 a that protrudes outward in the diameter direction centered on the axis L and exceeds the outer peripheral surface of the main body 10. The outer diameter of the extension portion 30a is larger than the inner diameters of the insertion holes 100a and 200a. The outer surface of the flange 30 (the surface opposite to the connection side of the main body 10) is a curved surface having a convex shape on the outer side.

>Guiding Department> As shown in FIGS. 1 and 3, the guide portion 40 is connected to the other end of the main body 10 (the end on the opposite side to the flange 30 along the axis of the main body 10). The guiding part 40 has a guiding function for smoothly inserting the main body 10 into the insertion holes 100a and 200a. The guide portion 40 has a pedestal shape that tapers from the bottom end (the end of the connection body 10) toward the front end in a cross section along the axis L. When the connector 1 is viewed from the bottom end in the direction of the axis L, the guide portion 40 extends in the same direction as the protrusions 21a, 21c in the opposite direction centered on the axis L of the main body 10, that is, relative to the main body 10 The extension lines of the protrusions 21b and 21d in the opposite direction with the axis L as the center are staggered. The guiding portion 40 includes a bottom end surface 41, a pair of main surfaces 42 and a pair of side surfaces 43. The bottom end surface 41 is a surface connected to the bottom end of the main body 10 and is a surface facing the flange 30. The bottom end surface 41 extends beyond the body 10 at both ends. The pair of main surfaces 42 are arranged to be parallel to each other at a predetermined interval. Each main surface 42 is a surface perpendicular to the bottom end surface 41, and is a surface facing the direction in which the protrusions 21b and 21d each extend. The main surface 42 has a slightly pedestal shape. The side surface 43 is a surface perpendicular to the pair of main surfaces 42. The pair of side surfaces 43 extend so as to approach each other from the bottom end surface 41 toward the front end, and meet at the front end of the guide portion 40. The leading end portion of the guide portion 40 is formed to be curved. The width of the bottom end of the guide portion 40 is larger than the outer diameter of the main body 10, and is formed to be the same as or slightly larger than the inner diameter of the insertion holes 100a, 200a. In addition, the width of the bottom end of the guide portion 40 is smaller than the width between the protrusions 21a and 21c in the opposite direction centered on the axis L of the main body 10.

〔Connecting objects with connectors〕 An example in which two objects are connected through the connector 1 in FIGS. 4 and 5 will be described. The following describes an example of assembling an L-shaped connecting body by connecting the first object 100 and the second object 200 formed in a plate shape. The first object 100 and the second object 200 are made of, for example, wood. The objects 100 and 200 can be applied to various materials not limited to wood.

As shown in FIG. 4(a), the first object 100 and the second object are respectively formed with insertion holes 100a and 200a through which the connector 1 is inserted. The first object 100 has two insertion holes 100a extending in a direction slightly perpendicular to its thickness direction. The second object 200 has two insertion holes 200a extending in a direction substantially parallel to the thickness direction thereof. As shown in FIG. 4(a), the insertion holes 100a and 200a of the first object 100 and the second object 200 are formed so as to be arranged coaxially with the two objects 100 and 200 arranged in an L shape.

As shown in (a) and (b) of FIG. 4, in a state where the first object 100 and the second object 200 are arranged in an L shape and the insertion holes 100a and 200a are arranged on the same axis, the connector 1 is Installed in the insertion holes 100a, 200a. Specifically, the main body 10 of the connector 1 is inserted into the insertion holes 100a and 200a, and the extension 30a of the flange 30 is in contact with the outer surface of the second object 200, and the connector 1 is attached to Into the insertion holes 100a and 200a.

The connector 1 has the guide portion 40 as a front end, and is mounted by pressing the flange 30 in a state where the main body 10 is arranged substantially parallel to the axes of the insertion holes 100 a and 200 a. The method of pushing the flange 30 may be a method of pushing the flange 30 with the hand of an operator, or a method of hitting the flange 30 with a tool such as a hammer. Various pressing methods can be applied in accordance with the magnitude of the penetration resistance generated between the protrusion 21 and the inner surface of the penetration holes 100a and 200a when the main body 10 is inserted into the penetration holes 100a and 200a.

As shown in (a) of FIG. 5, the connector 1 is brought close to the first object 100 and the second object 200 from the front end side where the guide portion 40 is provided. When the connector 1 of this embodiment is used, the diameter of the insertion holes 100a, 200a is preferably smaller than the diameter of the substantially circular imaginary circle formed by connecting the protrusions 21a to 21d to each other. The diameter of the insertion holes 100a, 200a is smaller than the width of the bottom end of the guide portion 40, and the connector 1 is inserted into the insertion holes 100a, 200a while the guide portion 40 is in contact with the inner surface of the insertion holes 100a, 200a. Inside. Thereby, the diameters of the insertion holes 100a, 200a at the positions in contact with the guide portion 40 are enlarged, and the subsequent protrusion 21 can be easily inserted into the insertion holes 100a, 200a. The connector 1 contacts the inner surfaces of the insertion holes 100a, 200a with the side of the facing surface 21f of the protrusion 21, and connects the material of the insertion holes 100a, 200a of the first object 100 and the second object 200 It is pushed outward in the diameter direction, and is inserted into the insertion holes 100a and 200a.

As shown in FIG. 5(b), in a state where the connector 1 is inserted into the insertion holes 100a and 200a, the tip of the protrusion 21 is pressed into the inner surface of the insertion hole 100a of the first object. Let the main body 10 be fixed to the first object. In this state, the extension 30a of the flange 30 abuts on the outer surface of the second object. That is, one side of the connecting part of the first object 100 and the second object 200 is fixed by the fixing of the main body 10 and the first object, and the other side of the connecting part is fixed by the flange 30 and The contact between the second objects is fixed. According to such a structure, the two sides of the connecting portion of the first object 100 and the second object 200 are fixed, so the first object 100 and the second object 200 act as an L-shaped connecting body in a stable connection state fixed.

As described above, the connector 1 of the above-mentioned embodiment does not need to use an additional connecting member, and only the insertion holes 100a, 200a of the objects 100, 200 are installed, that is, the objects 100, 200 can be connected to each other. Regarding the connector 1 of the above-mentioned embodiment, the protrusions 21 are formed in the circumferential direction of the outer circumferential surface of the main body 10 so that the protrusions 21 are separated from each other. Therefore, the contact stress per unit area generated in the contact portion of the protrusion 21 with the inner surface of the insertion hole 100a of the object 100 is larger than that of a structure in which protrusions are formed in the direction of the entire circumference. As a result, the fixing force of the main body 10 in the object 100 is increased, and the main body 10 is stably fixed in the object 100. In particular, by making the protrusion 21 into a flat plate shape, higher contact stress can be generated, and therefore the main body 10 is more stably fixed in the object 100. Regarding the connector 1 of the above-mentioned embodiment, the protrusions 21 are formed in the circumferential direction of the outer circumferential surface of the main body 10 so that the protrusions 21 are separated from each other. Therefore, the penetration resistance of the main body 10 is reduced compared to a structure in which protrusions are formed in the direction of the entire circumference. Thereby, the workability when attaching the connector 1 to the objects 100 and 200 can be improved. Regarding the connector 1 of the above-mentioned embodiment, since the guide portion 40 and the protrusion 21 are inserted while pushing the diameter of the expanded insertion holes 100a, 200a, the insertion holes 100a, 200a are at least larger than the protrusions 21a to The diameter of the substantially circular imaginary circle formed by connecting 21d to each other may be small. Therefore, the diameter of the insertion holes 100a and 200a does not need to be highly dimensional precision, and the diameter size can be set relatively freely. Regarding the connector 1 of the above-described embodiment, the protrusions 21 are formed so as to abut along the circumferential direction of the outer circumferential surface of the body 10 and the protrusions 21 are arranged to be offset from each other in the direction of the axis L of the body 10. Therefore, in almost all regions of the fixing portion 20 in the axial direction of the main body 10, any one of the protrusions 21 a, 21 b, 21 c, and 21 d in each row is in contact with the inner surface of the insertion hole 100 a of the object 100. That is, the contact area of the protrusion 21 and the insertion hole 100a is formed in a wide range in the axial direction almost without interruption. With this, the connector 1 can realize a more stable connection state compared to a configuration in which the adjacent protrusions 21 are arranged so as not to be offset from each other (a configuration in which the protrusions are arranged at substantially the same positions in the circumferential direction). Regarding the connector 1 of the above-mentioned embodiment, the protrusion 21 is formed such that the protrusions 21 in the opposite direction centered on the axis L of the main body 10 are arranged at substantially the same position in the circumferential direction. Therefore, the contact portion between the protrusion 21 and the inner surface of the insertion hole 100a is formed symmetrically with the insertion axis L as the center. Thereby, the stress generated in the contact portion between the protrusion 21 and the inner surface of the insertion hole 100a does not deviate in the circumferential direction, and the connector 1 can realize a more stable connection state. Regarding the connector 1 of the above-mentioned embodiment, the protrusion 21 is formed such that the front end of the protrusion 21 is inclined toward the flange 30 side on the side of one end of the main body 10 in the axial direction. Thereby, compared with the non-tilted type, the penetration resistance generated when the main body 10 is inserted into the penetration hole of the object mentioned later can be reduced. In addition, by slanting the protrusion 21, since the contact portion of the protrusion 21 and the inner surface of the insertion hole generates a contact stress on the tip of the protrusion 21 in the opposite direction to the direction in which the main body 10 is pulled out, it is possible to prevent the main body 10 from being inserted. The hole is pulled out. Regarding the connector 1 of the above embodiment, since one end of the main body 10 includes a flange 30 that includes a protruding portion 30a, the main body 10 can be prevented from being excessively inserted into the insertion holes 100a, 200a. In addition, the extension 30a of the flange 30 is in contact with the outer surface of the second object 200, so the combination of the fixing structure produced between the main body 10 and the first object 100 can stably fix the object 100, 200 connecting part.

>Others> In addition, the present invention is not limited to the above-mentioned embodiment. For example, as shown in (a) of FIG. 6, the connector 1 a can also be configured such that a protrusion 21 is formed on the outer peripheral surface of the main body 10 a having a substantially circular and elongated cylindrical body in cross section. For example, as shown in FIG. 6(b), the connector 1b can also be configured to include a body 10b that has a substantially elliptical cylindrical shape with a substantially straight section in cross section, and the body 10b is a large cylindrical body with a substantially circular cross section. The diameter portion 11b and the larger diameter portion 11b are formed of a small diameter portion 12b having a small diameter and a linear portion in a cross section, and the protrusion 21 is formed on the outer peripheral surface of the small diameter portion 12b. For example, as shown in FIG. 6(c), the connector 1c can also be configured such that the outer peripheral surface of the substantially elliptical cylindrical body 11c, 12c is formed with protrusions 21, and the cross section of the body 11c, 12c connected to both sides of the flange 30 has a straight line. Department of the structure. Furthermore, it can also be comprised so that the guide part 40 may be connected to one end of the main body 11c on one side. For example, as shown in FIG. 6(d), the connector 1d can also be configured such that a substantially elliptical cylindrical body 11d having a straight section in a cross section is connected to one end of the flange 30, and a substantially cylindrical body 12d is connected to the other end. , The protrusion 21 is formed on the outer peripheral surface of each body 11d, 12d. Furthermore, it can also be comprised so that the guide part 40 may be connected to the one end side of each of the main bodies 11d and 12d. For example, as shown in FIG. 6(e), the connector 1e can also be configured such that one end of the flange 30 is connected to a substantially elliptical cylindrical body 11e with a straight section in a cross section, and a body with a substantially circular cross section is connected to the other end. 12e, the protrusion 21 is formed on the outer peripheral surface of the main body 11e on the one end side. Furthermore, it can also be comprised so that the upper surface of the front-end|tip part of the main body 11e on one end side may form the slightly cross-shaped groove|channel G so that the front-end|tip part can expand and contract freely. For example, as shown in FIG. 6(f), the connector 1f can also be configured as two substantially cylindrical bodies 11f, 12f passing through the flange 30f and arranged in a substantially right angle relationship, and protrusions 21 are formed on the respective bodies 11f, 12f. Outer peripheral surface.

In the above-mentioned embodiment, although the protrusion 21 (rows 21a, 21b, 21c, 21d of protrusions) is exemplified as being formed into a structure that is slightly divided into quarters along the circumferential direction of the outer circumferential surface of the main body 10, it is not limited to this. The protrusion 21 can also be formed into a structure in which the protrusion 21 is separated into an arbitrary state such as approximately halves or approximately three halves along the peripheral surface direction of the outer peripheral surface. In addition, although the protrusion 21 is exemplified as a structure in which the protrusions 21 are formed to be spaced apart at slightly equal intervals along the circumferential direction of the outer circumferential surface, it is not limited to this. It is also possible to form a structure in which the protrusions 21 are formed at arbitrary intervals. In the above embodiment, although the connector has one body 10 or two bodies 10 through the flange 30, it is not limited to this. The main body 10 can employ various forms in accordance with the shape and number of objects to be connected. In the above-mentioned embodiment, although the protrusion 21 is illustrated as having a flat plate shape, it is not limited to this. Various shapes such as needles or curved shapes can also be used. In the above-mentioned embodiment, although the projection 21 is described as being configured as the fixed portion 20, a structure other than the projection 21 may also be provided. For example, as what constitutes the fixing portion 20, it is also possible to form uneven portions on the surface of the side surface of the main body 10. The concavo-convex portion can be used for the surface of the side surface with grooves (slits) or depressions, the surface with wavy bends, and the surface roughening process.

1, 1a, 1b, 1c, 1d, 1e, 1f: connector 10, 10a, 10b, 11c, 11d, 11e, 11f, 12c, 12d, 12e, 12f: body 100: The first object 100a, 200a: through hole 11b: Large diameter part 12b: Small diameter part 20: Fixed part 200: second object 21, 21a, 21b, 21c, 21d: protrusions 21e, 21f: Opposite surface 21g: side surface 30, 30f: flange 30a: Overhang 40: Guiding Department 41: bottom face 42: main side 43: side G: Groove L: axis

Figure 1 is a perspective view of the connector. Figure 2 is a top view of the connector. Figure 3 is a front view of the connector. Fig. 4(a) is a perspective view showing a state in which objects are connected to each other using a connector, and Fig. 4(b) is a perspective view showing objects connected using a connector. Figure 5(a) is a cross-sectional view showing a state where the connector is about to be inserted into the through hole of the object, and Figure 5(b) is a view showing the state where the connector has been inserted through the through hole of the object Section view. Fig. 6(a) is a perspective view of a connector related to a modification, Fig. 6(b) is a perspective view of a connector related to a modification, Fig. 6(c) is a perspective view of a connector related to a modification, and Fig. 6 (D) is a perspective view of the connector of the modified example, FIG. 6(e) is a perspective view of the connector of the modified example, and FIG. 6(f) is a perspective view of the connector of the modified example.

1: connector

10: body

20: Fixed part

21, 21a, 21b, 21c: protrusions

21e, 21f: Opposite surface

21g: side surface

30: flange

40: Guiding Department

41: bottom face

42: main side

43: side

L: axis

Claims (11)

A connector that contains A columnar body; and A fixing portion, the fixing portion includes a plurality of protrusions, the protrusions are separated from each other and formed on an outer peripheral surface of the main body, and the outer peripheral surface takes the main body as an axis. The connector according to claim 1, wherein the protrusions are formed to be separated from each other along the circumferential direction of the outer circumferential surface. The connector according to claim 2, wherein the protrusions are formed at equal intervals along the circumferential direction of the outer circumferential surface. The connector according to claim 2 or 3, wherein the protrusions are formed so as to be adjacent in the circumferential direction of the outer circumferential surface. The protrusions are arranged to be offset from each other in the axial direction of the body. The connector according to claim 4, wherein the protrusions are formed so as to be adjacent to each other in the circumferential direction of the outer circumferential surface, and the protrusions are arranged to be staggered with each other in the axial direction of the main body. The connector according to claim 1, wherein the protrusions are formed such that the protrusions in opposite directions centered on the axis of the main body are arranged at the same position in the circumferential direction of the outer circumferential surface. The connector according to claim 1, wherein the protrusions are separated from each other along the axial direction of the main body and are formed on the outer peripheral surface. The connector according to claim 1, wherein the protrusion is in the shape of a flat plate. The connector according to claim 1, which further includes a flange connected to one end of the main body in the axial direction and includes a protruding part facing the shaft of the main body The radially outer side as the center protrudes beyond the outer peripheral surface of the main body. The connector according to claim 1, wherein the protrusion is formed such that the front end of the protrusion is inclined toward the side of the end portion in the axial direction of the main body. A connector that uses the connector described in any one of claims 1 to 10 to connect.

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