JP2005169163A - Joint mechanism of rod-like member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint mechanism for joining or separating two rod-like members to and from each other in a simple manner. <P>SOLUTION: The mechanism for joining two rod-like members freely attachably and detachably is constituted so that a 1st rod-like member is provided with a cylindrical inserting end part having an engaging projected part on the circumferential surface, a 2nd rod-like member is provided with an engaging port receiving the inserting end part of the 1st rod-like member, a guide groove provided on the inside surface of the engaging port and for guiding the engaging projected part and a pulling means for pulling the 1st rod-like member inside the engaging port. The guide groove is provided with an introducing part extending from an inlet of the engaging port to the depth and a nearly U-shaped locking part provided successively to the introducing part and having a projecting structure on the inlet side of the engaging port. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connecting mechanism for rod-shaped members, and more particularly to a mechanism for suitably connecting two bars such as a handle of a cleaning tool or a painting tool and a joint pattern.

  In recent years, roller brushes are often used for architectural coatings such as wall surfaces (for example, Patent Document 1). Conventionally, the inside of the handle of a roller brush has a female screw structure that opens to the end on the hand side, and a joint with a male screw structure at the tip is screwed here to join them together to easily paint high walls and ceilings. It is configured to be able to.

  During painting, it is necessary to add paint to the roller regularly. When the joint pattern is connected to the roller brush, the roller brush and the joint pattern should be separated once under circumstances where the joint pattern is longer than a certain length or there is not enough space to avoid the joint pattern. Add the paint to the roller brush and then connect it to the joint pattern again.

In the roller brush constructed in this way, it was a troublesome task to remove and reattach the joint pattern several times each time paint was added. In addition, during painting, the joint pattern is rotated to change the direction of the roller brush. There was a problem that.
No. 7-19586

  The problems to be solved are that it is troublesome to attach and detach the roller brush and the joint pattern, and that the connection state between the two is easy to loosen after connection.

  The present invention is a mechanism for detachably connecting two rod-shaped members, wherein the first rod-shaped member has a cylindrical insertion end portion having an engagement protrusion on the peripheral surface, and the second rod-shaped member is the aforementioned A fitting inlet for receiving the insertion end of the first rod-shaped member, a guide groove provided on the inner surface of the fitting inlet for guiding the engagement protrusion, and a traction means for pulling the first rod-shaped member inside the fitting inlet The guide groove has an introduction part extending from the entrance to the back of the fitting inlet, and a generally U-shaped engagement with the introduction part connected to the introduction part and protruding toward the entrance side of the fitting inlet. The main feature is to have a stop.

  The pulling means includes a floating member disposed at the back of the fitting inlet, a spring member for pulling the floating member to the back of the fitting inlet, and a connection provided at an insertion end of the first rod-like member. And the connecting portion is configured to engage with the floating member by rotating the first rod-shaped member inside the fitting opening.

  Two guide grooves are provided at opposite positions on the inner peripheral surface of the fitting inlet of the second rod-shaped member, and two engaging protrusions of the first rod-shaped member are provided on both sides of the peripheral surface of the insertion end portion. One is provided.

  In a preferred embodiment, the second bar-shaped member is a handle of a roller brush, and the first bar-shaped member is configured as a joint for the roller brush.

  The connecting mechanism of the rod-shaped member of the present invention has a spring structure in which the first rod-shaped member on the insertion side has an engaging protrusion, the guide groove bent by the second rod-shaped member on the receiving side, and the first rod-shaped member is pulled. Therefore, there is an advantage that both members can be easily attached and detached by inserting the first rod-like member into the fitting opening of the second rod-like member and performing “pulling” that does not push.

  The connecting mechanism of the two rod-shaped members is configured so that it can be easily attached and detached.

  FIG. 1 is a diagram illustrating a configuration of a roller brush and a joint pattern set according to an embodiment of the present invention. The roller brush 1 includes a handle 11 and an application roller 12, and the roller 12 can be attached to and detached from the handle 11. A fitting entrance 13 is provided on the end face on the hand side of the handle 11, and the tip of the joint pattern 2 is inserted into the handle 11 to connect the roller brush 1 and the joint pattern 2 so that a place where the hand cannot reach can be painted. It is configured. Two guide grooves 14 facing each other are provided on the inner peripheral surface of the fitting opening 13, and two engagement protrusions 21 guided by the guide groove 14 are provided on the outer peripheral surface of the insertion end portion of the joint pattern 2. ing. The insertion end portion of the joint pattern 2 includes a hook portion 22 (connecting portion) that engages with the floating member 16 described later.

  FIG. 2 is a diagram illustrating a configuration of the hook portion 22 of the joint pattern 2. 2A is a front view, FIG. 2B is a side view, FIG. 2C is an elevation view, and FIG. 2D is a perspective view. The rear view is the same as the front view, and the left and right side views are the same. As shown in FIG. 2, the hook portion 22 has a shape in which a cylinder is cut out, and includes a pair of hooks 22a and 22b. As shown in FIGS. 2B and 2D, the tips of the hooks 22 a and 22 b are both bent in the circumferential direction of the member 22.

  FIG. 3 is a cross-sectional view showing the internal structure of the handle 11 of the roller brush. The fitting entrance 13 of the handle 11 has a cylindrical shape, and has an inner wall having a first guide groove 14 that extends from the entrance to the vicinity of the back and then bends.

  The first guide groove 14 includes a first rail 14a that linearly extends from the entrance of the fitting inlet 13 to the back side, and a second rail that extends from the terminal portion of the first rail 14a to the inner peripheral direction of the fitting inlet 13. 14b, a third rail 14c extending from the end of the second rail 14b toward the entrance of the fitting inlet 13, a fourth rail 14d extending again from the third rail 14c to the inner circumferential direction of the fitting inlet 13, And a fifth rail 14e extending from the fourth rail 14d to the back side of the fitting entrance 13. As shown in FIG. 3, the first rail 14 a serves as an introduction portion of the engagement protrusion 21 when the first rod-like member 2 is inserted into the fitting inlet 13, and the third to fifth rails 14 c to 14 e are the fitting inlet. It becomes a substantially U-shaped latching | locking part which has a convex structure at the entrance side. As described above, the two grooves 14 are provided on the inner wall of the fitting inlet 13 at positions facing each other, and they are symmetrical.

  A floating member 16 is disposed at the back of the insertion opening 13. The floating member 16 has the same shape and dimensions as the hook portion 22 of the joint pattern 20 shown in FIG. That is, it has a shape in which a cylinder is cut out, has a pair of hooks 16a and 16b, and has an engagement protrusion 16c on the outer peripheral surface. The floating member 16 is configured to be rotatable in the fitting inlet 13 and is always pulled to the back side of the fitting inlet 13 by a spring 17.

  FIG. 4 is a view showing a state where the floating member 16 is removed from FIG. As shown in FIG. 4, a second guide groove 18 is provided on the inner wall of the fitting inlet 13, and the engaging protrusion 16 c of the floating member 16 is held here. The second guide groove 18 is formed in a U-shape having the same size and shape as the third to fifth rails 14 c to 14 e in the first guide groove 14. After the handle 11 is assembled, the second guide groove 18 is a floating member. The 16 engaging projections 16 c are accommodated in the second guide groove 18, and the movable range of the floating member 16 becomes the extending range of the second guide groove 18. In the initial state after assembly, the engaging protrusion 16c of the floating member 16 is positioned at the end of the rail 18a of the second guide groove. In this state, the hooks 16a and 16b of the floating member 16 are positioned at the first guide groove 14. The angle is adjusted so as not to come into contact with the hooks 22a and 22b at the tip of the joint pattern 2 which is slid and inserted with the engaging protrusion 21 inserted therein. In the preferred embodiment, the engaging protrusions 16c of the floating member 16 and the second guide groove 18 are also provided symmetrically so that the floating member 16 can move smoothly.

  FIG. 5 is a view for explaining the connecting operation of the roller brush 1 and the joint pattern 2. When connecting the roller brush 1 and the joint pattern 2, the insertion end of the joint pattern 2 is applied to the entrance of the fitting inlet 13, and the engagement protrusion 21 is placed in the groove 14 of the fitting inlet 13 to insert the joint pattern 2. As shown in FIG. 5A, the engagement protrusion 21 of the joint pattern 2 advances along the rail 14a of the first guide groove. In this state, the hooks 22a and 22b at the tip of the joint pattern 2 are hooks 16a and 16a of the floating member 16, respectively. The engaging protrusion 21 reaches the terminal end of the first rail 14a with the hooks 16 and 22 of the two members being staggered without coming into contact with 16b.

  When the user of the roller brush hits the insertion of the joint pattern 2, the user rotates the joint pattern 2 clockwise. As shown in FIG. 5B, in this state, the floating member 16 cannot rotate in the circumferential direction due to the action of the engagement protrusion 16c and the second guide groove 18, so that the engagement protrusion 21 of the joint pattern 2 is The joint pattern 2 is rotated by moving the rail 14b, and the hooks 16a and 22a of both members are engaged with each other.

  Next, the user pulls the joint pattern 2 toward the hand side. As shown in FIG. 5 (c), the engagement protrusion 21 of the joint pattern 2 advances along the third rail 14 c, and at the same time, the engagement protrusion 16 c of the floating member 16 advances along the rail 18 a, and the floating member 16 opposes the spring 17. To move to the hand side.

  Next, the user turns the joint pattern 2 clockwise again. As shown in FIG. 5 (d), the engagement protrusion 21 of the joint pattern 2 advances to the end of the fourth rail 14d, and at the same time, the engagement protrusion 16c of the floating member 16 advances to the end of the rail 18b. Since the floating member 16 is pulled by the spring 17, if the hand is released in this state, the engaging protrusion 16 c of the floating member 16 comes into contact with the end of the rail 18 c, and at the same time, the engaging protrusion 21 of the joint pattern 2 is the fifth. Fits on the rail 14e. The handle 11 and the joint pattern 2 are now connected.

  In order to separate the handle 11 and the joint pattern 2 of the roller brush 1, the above procedure may be reversed. In other words, the joint pattern 2 is pulled counterclockwise and then turned counterclockwise, once returned to the back, and then turned counterclockwise again to release the engagement state between the joint pattern 2 and the floating member 16. The joint pattern 2 is pulled out from the fitting inlet 13 along the rail 14a. The roller brush 1 and the joint pattern 2 can be easily attached and detached by the above procedure.

  FIG. 6 is a perspective view showing the configuration of another embodiment of the insertion end of the joint pattern 2 and the floating member 16 in the above embodiment. In the above embodiment, as shown in FIG. 2, the cylindrical end surface is divided into four parts, and both members have two hooks sandwiching the center of the end surface. Is not limited to the above-described embodiment, and other configurations may be adopted as long as both engage in the fitting inlet 13. In the example shown in FIG. 6, the structure has only one hook that is about half of the cylindrical end face. Even with this structure, the floating member and the joint pattern can be engaged by rotating within the fitting opening. .

  Although the embodiment of the present invention has been described in detail, the present invention is not limited to the roller brush and the joint pattern as in the above-described embodiments. For example, fishing rods, clothes rods, commercial window cleaning mops and window cleaning wipers The present invention can be applied to various other rod-like member connection mechanisms. In the above embodiment, a spring is used as a pulling member for pulling the floating member 16, but other members may be used as long as they have a function of pulling the floating member to the back, for example, a leaf spring or rubber. Or a magnet.

  In the above embodiment, the first groove 14 is configured to have a substantially U-shaped locking portion (third to fifth rails 14c to 14e). The character shape is also included.

  In the present invention, two bar-shaped members can be easily connected and disconnected, so that roller brushes and joints, fishing rods and clothespins, commercial window cleaning mops, window cleaning wipers and other various rod-shaped members can be connected. It can be used suitably.

It is an external view which shows the structure of a roller brush and a joint pattern. It is a figure which shows the structure of the insertion end part of the joint pattern. FIG. 4 is a cross-sectional view showing the structure of the handle 11. FIG. 4 is a cross-sectional view showing the structure of the handle 11. It is a figure explaining the connection structure of the joint pattern 2 and the handle 11. FIG. It is a figure which shows the structure of another Example of the insertion end part of a joint pattern.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roller brush 2 Joint pattern 11 Handle 13 Insertion opening 14 1st guide groove 16 Floating member 16c Engagement protrusion of a floating member 17 Spring 18 1st guide groove 21 Engagement protrusion 22 of a joint pattern 22 Hook part

Claims (4)

  A mechanism for detachably connecting two rod-shaped members, wherein the first rod-shaped member has a cylindrical insertion end portion having an engagement protrusion on the peripheral surface, and the second rod-shaped member is the first rod-shaped member. A fitting inlet for receiving the insertion end of the member, a guide groove provided on the inner surface of the fitting inlet for guiding the engagement protrusion, and a traction means for pulling the first rod-like member inside the fitting inlet, An introduction portion in which the guide groove extends from the entrance to the back of the fitting entrance, and a generally U-shaped engagement portion connected to the introduction portion and having a convex configuration on the entrance side of the fit entrance. A connecting mechanism for rod-shaped members.   2. The rod-shaped member coupling mechanism according to claim 1, wherein the pulling means includes a floating member disposed in a back part of the fitting inlet, a spring member for pulling the floating member to a back part of the fitting inlet, and the first member. A connecting portion provided at the insertion end of the first rod-shaped member, and the connecting portion is configured to engage with the floating member by rotating the first rod-shaped member inside the fitting opening. A rod-shaped member coupling mechanism characterized by the above.   3. The connecting mechanism for the bar-shaped member according to claim 1, wherein the guide groove is provided at two positions opposite to each other on the inner peripheral surface of the fitting inlet of the second bar-shaped member, and the first bar-shaped member is provided. There are two engaging projections on both sides of the peripheral surface of the insertion end portion.   The rod-shaped member according to any one of claims 1 to 3, wherein the second rod-shaped member is a handle of a roller brush, and the first rod-shaped member is a joint for the roller brush. Linkage mechanism.

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