1. Field of the Invention
The present invention relates to buckles and more particularly, to a press release buckle, which allows the coupling shaft of a connection member thereof to be pressed on a spring-supported press member in an accommodation chamber of a base member thereof and then forced into a retaining gap in the base member and stopped in the retaining gap by the press member.
2. Description of the Related Art
Many different types of buckles and snap hooks have been created and are intensively used in shoes, backpacks, travel bags, shoulder bags, etc., to join two parts together. Further, a snap hook generally comprises a hook, a spring latch movable to close/open the hook, and a mounting ring located on one end of the hook for mounting. This design of snap hook is not satisfactory in function. The spring latch may be opened from the hook accidentally by an external force, causing disconnection of the hook from the hooked object. Further, the mounting ring may be fixedly mounted on or rotatably coupled to one end of the hook. Thus, the operational flexibility of this design of snap hook is limited.
The aforesaid conventional snap hook is functional; however, due to the structural design of the hooked portion A1 of the hook A, the user must apply a pressure to the sliding block B to move the top protrusion B1 apart from the hooked portion A1 when wishing to disconnect the hook A from the hooked object. When pushing the sliding block B in direction away from the hooked portion A1 of the hook A, the applied force must overcome the spring force of the spring strip A5. Further, because the spring strip A5 is formed integral with a part of the hook A, applying an excessively high pressure to the sliding block B against the spring strip A5 may cause concentration of stress, deforming or damaging the connection area between the spring strip A5 and the hook A. Thus, this design of snap hook is not durable in use and its safety level is low. Therefore, an improvement in this regard is necessary.
The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a press release buckle, which comprises a base member mountable on an external object and defining an accommodation chamber, a front opening and a retaining gap defined between the front opening and the accommodation chamber, a press member supported on an elastic member in the accommodation chamber and movable vertically between the top and bottom sides of the accommodation chamber to close/open the retaining gap, and a connection member having a coupling shaft insertable into the accommodation chamber and then the retaining gap, a mounting block for fastening to an external strap member and a neck connected between the coupling shaft and the mounting block and positionable in the front opening of the base member. Further, the elastic member holds the press member normally in the upper limit position to close the retaining gap, and allows the press member to be moved between the top and bottom sides of the accommodation chamber in a balanced status without tilting so that the coupling shaft of the connection member can be smoothly inserted into the retaining gap or removal of the coupling shaft of the connection member out of the retaining gap.
It is another object of the present invention to provide a press release buckle, wherein the base member comprises two pivot pins respectively horizontally extended from the inside wall thereof at two opposite lateral sides in the retaining gap between the accommodation chamber and the front opening and two horizontal stop flanges respectively suspending above the pivot pins; the coupling shaft of the connection member comprises two pivot holes respectively and axially located on the two distal ends thereof for receiving the pivot pins and two end notches respectively and radially located on the two distal ends in communication with the pivot holes and facing the mounting block for guiding the two pivot pins of the base member into the pivot holes in one particular direction.
It is still another object of the present invention to provide a press release buckle, which further comprises a mounting structure adapted for pivotally connecting the base member to an external object. The base member further comprises a bottom shank perpendicularly downwardly extended from the flat bottom surface of the bottom wall thereof and a guide block protruded from the flat bottom surface adjacent to the bottom shank. The coupling structure comprises a first mounting plate attached to one side of the external object. The first mounting plate comprises a center through hole for the passing of the bottom shank of the base member and an arched sliding groove located on the top wall thereof and extending around the center through hole and coupled to the guide block of the base member to guide rotation of the base member relative to the mounting structure within a predetermined angle, for example, 45° angle, and a fastening member inserted through a through hole on the external object and the center through hole of the mounting structure and driven into the bottom shank of the base member to pivotally connect the base member to the mounting structure and the external object.
It is still another object of the present invention to provide a press release buckle, wherein the base member further comprises an upright post suspending in the accommodation chamber; the press member comprises a bottom recess located on the bottom wall thereof; the elastic member is a conical compression spring that has a relatively smaller bottom end sleeved onto the upright post in the accommodation chamber of the base member and a relatively larger top end positioned in the bottom recess of the press member. Thus, the elastic member supports the press member stably in the accommodation chamber and can return the press member immediately and stably after said press member having been pressed.
Referring to
The base member 1 defines an accommodation chamber 11 and a front opening 111 in communication with the accommodation chamber 11. The press member 12 is mounted in the accommodation chamber 11 of the base member 1, defining with the base member 1 a retaining gap 13 between the accommodation chamber 11 and the front opening 111. The elastic member 14 is mounted in the accommodation chamber 11 and stopped between the press member 12 and the bottom wall of the base member 11.
The base member 1 further comprises an upright post 112 vertically upwardly extended from the bottom wall thereof and suspending in the accommodation chamber 11. The elastic member 14 according to this embodiment is a conical compression spring, having a relatively smaller bottom end 141 sleeved onto the upright post 112 and a relatively larger top end 142 positioned in a bottom recess 121 of the press member 12. The base member 1 further comprises a coupling structure 113 for receiving the press member 12. The coupling structure 113 comprises a plurality of vertical coupling grooves 1131 spaced around the inside wall of the base member 1 within the accommodation chamber 11 and a plurality of beveled guide faces 1132 located on the inside wall of the base member 1 and respectively disposed above the vertical coupling grooves 1131. The press member 12 further comprises a coupling structure 122 for coupling to the coupling structure 113 of the base member 1. The coupling structure 122 comprises a plurality of coupling hooks 1221 respectively moved along the beveled guide faces 1132 into the vertical coupling grooves 1131. After insertion of the respective coupling hooks 1221 into the respective vertical coupling grooves 1131, the press member 12 can be moved vertically up and down in the accommodation chamber 11 (this will be described further). The press member 12 further comprises a sloping surface portion 123 located on the top side thereof. Further, the base member 1 comprises pivot pins 131 respectively horizontally extended from the inside wall thereof at two opposite lateral sides in the retaining gap 13 between the accommodation chamber 11 and the front opening 111, two horizontal stop flanges 132 respectively suspending above the pivot pins 131, and a narrow protruding block 133 raised from the bottom wall thereof in the bottom side of the retaining gap 13 and equally spaced between the two pivot pins 131 and abutted to the bottom side of the front opening 111.
The connection member 2 comprises a coupling shaft 21, a mounting block 22 and a neck 23 connected between a middle part of the coupling shaft 21 and a middle part of the mounting block 22. The coupling shaft 21 comprises two pivot holes 211 respectively and axially located on the two distal ends thereof, two end notches 2111 respectively and radially located on the two distal ends in communication with the respective pivot holes 211 and facing the mounting block 22, and two locating blocks 212 respectively protruded from the periphery there near the two distal ends and opposite to the end notches 2111. The mounting block 22 has a mounting hole 221 for the mounting of a strap member.
Referring to
Thereafter, press the coupling shaft 21 of the connection member 2 onto the press member 12 in the base member 1 to lower the press member 12 and to compress the elastic member (conical compression spring) 14 and then move the connection member 2 to slide the coupling shaft 21 along the sloping surface portion 123 of the press member 12 into the retaining gap 13 and to have the coupling shaft 21 be supported on the narrow protruding block 133, and then pull the connection member 2 to move the coupling shaft 21 along the narrow protruding block 133 and to further let the two pivot pins 131 be forced through the respective end notches 2111 into the respective pivot holes 211. At this time, the neck 23 of the connection member 2 extends through the front opening 111 of the base member 1, and the elastic member (conical compression spring) 14 returns the press member 12 to its former position, i.e. the upper limit position where the coupling hooks 1221 of the coupling structure 122 of the press member 12 are respectively stopped at the top ends of the vertical coupling grooves 1131, the coupling shaft 21 and its locating blocks 212 are stopped by the press member 12 and the stop flanges 132 of the base member 1 in the retaining gap 13, and therefore the connection member 2 is kept connected to the base member 1.
When wishing to disconnect the connection member 2 (second buckle unit) from the base member 1 (first buckle unit), press the press member 12 to compress the elastic member (conical compression spring) 14 and to open the retaining gap 13, allowing the coupling shaft 21 of the connection member 2 to be disengaged from the two pivot pins 131 of the base member 1 and the moved out of the retaining gap 13. After removal of the connection member 2 from the base member 1, the elastic member (conical compression spring) 14 immediately returns the press member 12 to its former position.
Referring to
During installation of the mounting structure 15, attach the first mounting plate 151 and the second mounting plate 152 to the top and bottom sides of the object 3 to have the bottom mounting posts 1513 of the first mounting plate 151 be inserted through respective through holes 31 on the object 3 into the mounting holes 1522 of the second mounting plate 152, and then fasten one respective fastening member 153 to each of the bottom mounting posts 1513 of the first mounting plate 151 to affix the first mounting plate 15, the object 3 and the second mounting plate 152 together.
Thereafter, attach the first mounting plate 151 to the flat bottom surface 114 of the base member 1 to couple the center through hole 1511 and arched sliding groove 1512 of the first mounting plate 151 to the bottom shank 1141 and guide block 1142 of the base member 1, and then insert one fastening member 153 through the center through hole 1521 of the second mounting plate 152 and one corresponding through holes 31 on the object 3 and drive the fastening member 153 into the base member 1 to pivotally connect the mounting structure 15 and the object 3 to the base member 1, allowing rotation of the base member 1 relative to the mounting structure 15 and the object 3 within a predetermined angle (subject to the extending angle of the arched sliding groove 1512 around the center through hole 1511), for example, 45° angle.
Further, the mounting hole 221 is located on the back side of the mounting block 22 of the connection member 2 opposite to the neck 23 and the coupling shaft 21 and extending to the bottom side of the mounting block 22 for the mounting of a strap member 4 (or a component part of a bag, box or any of a variety of consumer products) positively. After fastening of the connection member 2 to the strap member 4, the strap member 4 can be kept from sight.
Further, according to this second embodiment, the coupling structure 113 of the base member 1 comprises a plurality of springy hooks 1133 spaced around the accommodation chamber 11; the coupling structure 122 of the press member 12 comprises a plurality of coupling grooves 1222 for receiving the springy hooks 1133 of the coupling structure 113 of the base member 1. Further, the base member 1 in accordance with this second embodiment eliminates the aforesaid mounting structure 15. According to this second embodiment, the base member 1 comprises a mounting flap 16 extending around the periphery of the bottom wall thereof in a flush manner for fastening to a first object (for example, the object 3 shown in
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.