TWM648431U - Latch and latch system - Google Patents

Abstract

The present creation discloses a latch comprising: a housing mounted to a first object; a handle at least partially disposed in the housing and rotatable relative to the housing between a first position and a second position; a bolt at least partially disposed in the housing and connected to the handle, when the handle is at the first position, the bolt is driven by the handle to the locked position at least partially protruding from the housing, and when the handle is at the second position, the bolt is driven by the handle to an unlocked position withdrawn into the housing; a retainer connected to the bolt and retaining the bolt in the locked and unlocked positions when the bolt is in the locked and unlocked positions, respectively. The present creation also discloses a latch system.

Description

Latches and latch systems

The invention relates to a latch, and a latch system containing the latch.

A latch is a common device that operatively connects and disconnects a first item to and from a second item. The latch is typically mounted to a first item and inserted into the second item via a component such as a deadbolt, thereby connecting the first item to the second item. In some applications, it is expected that the locking tongue will not protrude from the first object, especially so that the locking tongue retracts into the first object during the process of connecting or detaching the first object to the second object. In this way, for applications in complex environments, such as servers with many cables, the lock tongue will not interfere with the cables and cause unnecessary problems.

Moreover, it is desirable to achieve the above goals with a latch that is as simple as possible and as small as possible. Therefore, a new latch needs to be designed.

A latch according to the present invention for locking a first object to a second object, the latch comprising: a housing mounted to the first object; a handle at least partially disposed in the housing, and rotates relative to the housing between a first position and a second position; a locking bolt, at least partially disposed in the housing and connected to the handle, when the handle moves to the first position When, the lock tongue is said The handle is driven to a locking position that at least partially extends out of the housing, and when the handle moves to the second position, the locking tongue is driven by the handle to an unlocking position that is withdrawn into the housing; the retaining member , connected to the locking tongue, and when the locking tongue is in the locking position and the unlocking position, the locking tongue is held in the locking position and the unlocking position respectively.

In one embodiment, the retaining member is rotatable relative to the housing, and when the locking bolt moves to the locking position, the retaining member is in a first angular position, and when the locking bolt moves to the locking position In the unlocking position, the retaining member is in a second angular position; the latch further includes an elastic member connected between the retaining member and the housing. When the retaining member is in the When the first angular position and the second angular position are moved to the first angular position and the second angular position, the elastic member keeps the retaining member at the first angular position and the second angular position respectively.

In one embodiment, the rotation path of the holder has a stop point between the first angular position and the second angular position; when the holder is between the first angular position and the stop point between the second position and the stop point, the elastic member biases the retaining member toward the first angular position; and when the retaining member is between the second position and the stop point, the elastic member biases the retaining member toward the first angular position. The retainer is biased toward the second angular position.

In one embodiment, the elastic member and the retaining member rotate relative to the housing and are configured such that when the retaining member is located between the first angular position and the stop point, the elastic member is located on one side of the rotation axis of the retaining member, thereby exerting a moment on the retaining member toward the first angular position; when the elastic member is located between the second angular position and the stop point, The elastic member is located on the other side of the rotation axis of the retaining member, thereby exerting a moment on the retaining member toward the second angular position.

In one embodiment, the handle rotates about the handle axis and the retaining member rotates about the large causing the axis of the holder to rotate parallel to the axis of the handle.

In one embodiment, the retainer includes: a retainer hole, which is opened at the retainer axis, and the retainer is sleeved on the retainer axis in the housing through the retainer hole; a pin, which is approximately parallel The pin is inserted into the second sliding hole of the lock tongue in the retainer hole and at opposite ends of the retainer hole, so that the retainer follows the lock The tongue rotates due to the sliding movement of the tongue; both ends of the elastic member are respectively connected to the pin and the elastic member connection portion in the housing, so that the elastic member rotates with the retaining member.

In one embodiment, the lock tongue includes: a sliding part disposed in the housing and sliding along a chute in the housing; a locking part sliding from the lock tongue along the sliding direction of the lock tongue. The sliding part extends, and when the lock tongue is in the locking position, the locking part extends out of the housing and can be locked to the second object; a protruding part extends from the sliding part toward the handle, A first sliding hole is opened in the protruding part, and the handle connection part of the handle is inserted into the first sliding hole, so that the lock tongue slides as the handle rotates.

In one embodiment, the sliding part has two sliding walls opposite to each other transversely to the sliding direction, each of the sliding walls forms a second sliding hole, and the retaining member is at least partially accommodated in the two sliding walls. in the accommodation space between the two sliding walls, and the two ends of the pin are respectively inserted into the two second sliding holes.

In one embodiment, the handle includes: an operating part that can be operated from the outside of the housing; a handle connection part that is opposite to the operating part and is connected to the first sliding hole of the lock tongue so that the The handle drives the lock tongue to move; and a handle hole is located between the operating part and the handle connection part and is rotatably connected to the handle shaft of the housing.

In one embodiment, the operating part is configured such that when the handle is in the first position When the handle is in the second position, the operating part moves away from the housing and is easily pulled to cause the first object to move away from the third object. Two objects.

In one embodiment, the housing includes: a first housing having a bottom wall, a side wall vertically extending from the bottom wall, and an open top opposite to the bottom wall, and the lock tongue can pass through the bottom wall. A side wall extends to the outside of the housing; a second housing closes the open top of the first housing to form a closed space.

A latch system according to the invention, comprising: the latch according to the invention; another latch, disposed on the first object and transverse to the direction in which the first object is connected to the second object. Set symmetrically with the latch.

1:Latching system

100:Latch

101: Shell

110:First shell

111: Bottom wall

112:Side wall

113:Handle shaft

114:Retainer shaft

115:Chute

116: Elastic part connection part

117:Assembly Department

120:Second shell

121:Screw hole

130: handle

131:Operation Department

132: handle hole

133: Handle connection part

140:Latch tongue

141:Sliding part

142:Lock Department

143:Protrusion

144: Incline

145: First sliding hole

146: Accommodation space

147:Second sliding hole

148:Sliding wall

150:Retainer

151:pin

152:Retainer hole

160: Elastic parts

170:Screw

200: Another latch

210: Another first shell

220: Another second shell

230:Another handle

240:Another lock tongue

250:Another retainer

260:Another elastic piece

300: first object

400:Second object

A1: handle axis

A2: axis of retainer

Figures 1A to 1F are respectively the front view, rear view, left view, right view, top view, and bottom view of the latch according to the present invention; Figures 1G and 1H are respectively three-dimensional views of the latch from different angles; Figure 2 is An exploded perspective view of the latch; Figures 3A and 3B are perspective views of the first housing of the latch from different angles; Figure 3C is a perspective view of the second housing of the latch; Figures 4A and 4B are respectively the perspective view of the latch. Figures 5A and 5B are perspective views of the latch's handle from different angles; Figures 6A and 6B are perspective views of the latch's retainer from different angles; Figure 7 is a perspective view of a latching system according to the invention, in which a first object has been connected to a second object;

Figure 8 is a perspective view of a latch system according to the present invention, in which a first object is connected to or detached from a second object;

Figure 9 is a partial perspective view of a latch system in accordance with the present invention, in which the first object has been connected to the second object, and with the second housing removed to illustrate other components of the latch;

Figure 10 is a partial perspective view of a latch system in accordance with the present invention, with a first object being connected to or being detached from a second object, and with the second housing removed to illustrate other components of the latch;

Figures 11A to 11F are respectively a front view, a rear view, a left view, a right view, a top view, and a bottom view of another latch according to the present invention; Figures 11G and 11H are respectively three-dimensional views of another latch from different angles;

Figure 12 is an exploded perspective view of another latch.

Although the present invention is illustrated and described herein with reference to specific embodiments, the invention should not be limited to the details shown. Rather, various modifications may be made to these details within the scope of equivalents to the claimed patent scope and without departing from the invention.

The "front", "back", "upper", "lower" and other directions described in this article are only for the convenience of understanding. This creation is not limited to these directions, but can be adjusted according to the actual situation.

The latch 100 according to the present invention is described in its entirety with reference to FIGS. 1A-2 . The latch 100 of this invention includes: a housing 101, a handle 130, a lock tongue 140, a retaining member 150, an elastic member 160, and a screw 170.

Housing 101 is used to at least partially house other components of latch 100 . In the present creation, the housing 101 is composed of the first housing 110 and the second housing 120 through screws 170 to facilitate the assembly of the latch 100. In other embodiments, the housing 101 may also be formed as an entire component.

The handle 130 is at least partially disposed in the housing 101 and can rotate relative to the housing 101 . The locking tongue 140 is at least partially disposed in the housing 101 and connected to the handle 130 . The lock tongue 140 can slide relative to the housing 101 as the handle 130 rotates. The retainer 150 is connected to the lock tongue 140 and is used to keep the lock tongue 140 in a locked position or an unlocked position, as will be described in detail below. The elastic member 160 is connected between the retaining member 150 and the housing 101, and exerts a rotational moment on the lock tongue 140 through the retainer 150, so as to retain the lock tongue 140.

The specific structure of the first housing 110 is described with reference to FIGS. 3A and 3B.

The first housing 110 includes: a bottom wall 111 , a side wall 112 vertically extending from the bottom wall 111 , and an open top opposite to the bottom wall 111 . In this embodiment, the first housing 110 has a substantially rectangular shape extending longitudinally and transversely. The bottom wall 111 of the first housing 110 is provided with a handle shaft 113, a holder shaft 114, and an elastic member connecting portion 116 for respectively installing the handle 130, the holder 150, and the elastic member 160. The handle shaft 113, the holder shaft 114, and the elastic member connecting portion 116 are distributed along the longitudinal direction, and extend along the thickness direction perpendicular to the longitudinal direction and the transverse direction respectively. The handle shaft 113 is provided near one longitudinal end of the first housing 110 , the holder shaft 114 and the elastic member connecting portion 116 are provided near the other longitudinal end of the first housing 110 , and the elastic member connecting portion 116 is smaller than the holder shaft 114 Closer to the other longitudinal end of the housing 101. A chute 115 is provided between the handle shaft 113 and the holding shaft. The chute 115 extends transversely and extends through the side wall 112 .

It should be understood that the above-mentioned shape of the first housing 110 is beneficial to the manufacture and clean appearance of the latch 100. In other embodiments, the first housing 110 can also be in other shapes, such as the handle shaft 113, the retainer shaft 114, and the elastic member. The connecting portion 116 can also be provided at different positions, as long as the holder shaft 114 is substantially located between the handle shaft 113 and the elastic member connecting portion 116 .

The bottom wall 111 of the first housing 110 is also provided with at least one assembly portion 117 for assembly into the housing 101 .

The specific structure of the second housing 120 is described with reference to FIG. 3C.

The shape of the second housing 120 is generally corresponding to the first housing 110 and is also generally rectangular. The second housing 120 may not be provided with the side wall 112 . The second housing 120 is provided with at least one screw hole 121 , and the screws 170 assemble the second housing 120 to the first housing 110 through each screw hole 121 , so that the second housing 120 closes the opening of the first housing 110 top, thus forming a closed space.

The specific structure of the handle 130 is described with reference to FIGS. 4A, 4B and 2 .

The handle 130 includes an operating part 131, a handle connection part 133, and a handle hole 132. The operating part 131 and the handle connecting part 133 are located at both longitudinal ends of the handle 130 . The operation part 131 can be operated from the outside of the housing 101 . The handle connection part 133 is opposite to the operating part 131 and is connected to the lock tongue 140, specifically to the first sliding hole 145 of the lock tongue 140, so that the handle 130 drives the lock tongue 140 to move. The handle hole 132 is located near the longitudinal middle of the handle 130 , that is, the handle hole 132 is located between the operating part 131 and the handle connecting part 133 . The handle 130 is rotatably connected to the handle shaft 113 of the housing 101 through the handle hole 132 , so the handle 130 rotates around the handle axis A1 at the handle hole 132 .

In this embodiment, the operating portion 131 is configured to extend laterally, and is provided with a longitudinally extending grip portion away from the handle hole 132 to facilitate the user to pull out the first object 300 through the handle 130, which will be described in detail below. In other embodiments, the operating portion 131 can also be provided in other appropriate shapes, as long as it can be operated and rotated from outside the housing 101 .

The specific structure of the lock tongue 140 is described with reference to FIGS. 5A, 5B and 2 . The lock tongue 140 includes a sliding part 141, a locking part 142, and a protruding part 143.

The sliding portion 141 is substantially rectangular, is disposed in the housing 101 , and slides laterally along the slide groove 115 in the housing 101 . The locking portion 142 extends from the sliding portion 141 along the sliding direction of the lock tongue 140 , that is, extends laterally from the sliding portion 141 . In this embodiment, one longitudinal side of the locking portion 142 may form a slope. 144. In this way, when the first object 300 is inserted into the second object 400, the inclined surface 144 abuts the second object 400, so that the lock tongue 140 automatically retracts into the first object 300. The protruding portion 143 extends from the sliding portion 141 toward the handle 130, that is, extends in the longitudinal direction. A first sliding hole 145 is opened in the protruding portion 143 , and the handle connecting portion 133 of the handle 130 is inserted into the first sliding hole 145 , so that the lock tongue 140 slides as the handle 130 rotates. In this embodiment, the first sliding hole 145 extends longitudinally, but may also extend transversely or obliquely in other embodiments.

More specifically, the sliding portion 141 has two opposite sliding walls 148 transverse to the sliding direction (ie, along the thickness direction). Each sliding wall 148 forms a second sliding hole 147 , and the retaining member 150 is at least partially accommodated in In the accommodation space 146 between the two sliding walls 148 , the two ends of the pin 151 of the retainer 150 are respectively inserted into the two second sliding holes 147 . In this way, the retaining member 150 can be stably connected to the sliding part 141 and the volume of the entire latch 100 can be compressed.

The specific structure of the holder 150 is described with reference to FIGS. 6A, 6B and 2 .

The retainer 150 is generally rod-shaped and includes a retainer hole 152 and a pin 151 . The retainer hole 152 is opened at one end of the retainer 150 along the rotation axis of the retainer 150 . The retainer 150 is sleeved on the retainer shaft 114 in the housing 101 through the retainer hole 152 . Pin 151 is generally parallel to retainer hole 152 and is located at the other end of retainer 150 . The pin 151 is inserted into the second sliding hole 147 of the lock tongue 140 so that the retaining member 150 rotates with the sliding movement of the lock tongue 140 . In this embodiment, the pin 151 extends from the other end of the retaining member 150 along two thickness directions opposite to each other, so as to be inserted into the two second sliding holes 147 of the lock tongue 140 .

The operation of the latch 100 of the present invention is described with reference to Figures 7-10.

As shown in FIGS. 7 and 9 , the first object 300 is locked to the second object 400 at this time. The handle 130 is in the first position, and the operating portion 131 of the handle 130 is relatively close to the housing 101 to reduce latching. 100 occupied space. The handle connection part 133 is located on the left side of FIG. 9 , so that the lock tongue 140 moves to the locking position on the left side of the housing 101 . Therefore, the locking tongue 140 extends through the side wall 112 to the outside of the housing 101 , extends from the housing 101 and is inserted into the second object 400 , thereby locking the first object 300 to the second object 400 . The pin 151 of the retaining member 150 moves with the lock tongue 140 to the left side of the retaining member axis A2, that is, the first angular position.

Both ends of the elastic member 160 are connected to the pin 151 and the elastic member connection portion 116 in the housing 101 respectively, so that the elastic member 160 rotates with the retaining member 150 . The elastic member 160 exerts a pulling force on the pin 151, so that the pin 151 tends to move in the counterclockwise direction of FIG. 9, thereby keeping the lock tongue 140 in the locked position.

The elastic member 160 of the retaining member 150 rotates relative to the housing 101 and is configured such that when the retaining member 150 is located between the first angular position and the dead center, the elastic member 160 is located on one side of the rotation axis of the retaining member 150, thereby affecting the retaining member. 150 exerts a moment toward the first angular position; when the elastic member 160 is located between the second angular position and the dead center, the elastic member 160 is located on the other side of the rotation axis of the retaining member 150, thereby exerting a torque on the retaining member 150 toward the second angular position. Moment at angular position. More specifically, the movement path of the holder 150 includes a stop point, at which the elastic member 160 moves with the holder 150 to just pass the holder axis A2. During the movement of the retaining member 150 , the elastic member 160 always exerts a downward pulling force on the retaining member 150 . However, when the retaining member 150 passes the dead center, the pulling force of the elastic member 160 changes from driving the retaining member 150 to move in the counterclockwise direction to driving the retaining member 150 to move in the clockwise direction.

When the user needs to unlock the latch 100, he or she rotates the handle 130 in the counterclockwise direction in FIG. 9, causing the handle connecting portion 133 to move to the right, and the lock tongue 140 is therefore driven to move to the right. The pin 151 is driven by the lock tongue 140 to move to the right, causing the retaining member 150 to rotate clockwise. The latch 100 therefore reaches the state shown in Figures 8 and 10.

When the user rotates the handle 130 to the second position shown in Figures 8 and 10, the lock tongue 140 As the handle 130 reaches the unlocking position on the right side of the housing 101, it is retracted into the housing 101 and is no longer locked to the second object 400. As the retaining member 150 moves to the second angular position as the lock tongue 140 moves, the elastic member 160 tends to retain the retaining member 150 at the second angular position. In this way, even if the user no longer holds the handle 130, the retaining member 150 will keep the lock tongue 140 in the unlocked position, thus preventing the lock tongue 140 from protruding from the housing 101 from interfacing with other objects (such as the first object 300, the second object 300, etc.). (cables near object 400) interfere with each other.

In this embodiment, the handle axis A1 is generally parallel to the holder axis A2 to facilitate manufacturing. However, in other embodiments, the handle axis A1 may not be parallel to the holder axis A2.

Also shown in Figures 7 and 8 is another latch 200 according to the invention, which is arranged symmetrically with the latch 100, thereby forming the latch system 1. More specifically, another latch 200 is provided on the first object 300 and is disposed symmetrically with the latch 200 transversely along the direction in which the first object 300 is connected to the second object 400 . Therefore, the user can operate the latch 100 and the other latch 200 respectively with two hands, making it easier to separate the first object 300 from the second object 400 .

Referring to FIGS. 11A to 12 , another latch 200 includes another first housing 220 , another second housing 220 , another handle 230 , another lock tongue 240 , another retaining member 250 , and another elastic member. 260. These components are arranged laterally symmetrically with corresponding components of the latch 100 .

While preferred embodiments have been illustrated and described herein, it is to be understood that these embodiments are presented as examples only. Many modifications, changes and substitutions will occur to those of ordinary skill in the art to which this invention belongs without departing from the spirit of this invention. The accompanying patent claims are therefore intended to cover all such variations falling within the spirit and scope of this creation.

100:Latch

101: Shell

110:First shell

113:Handle shaft

114:Retainer shaft

116: Elastic part connection part

120:Second shell

130: handle

131:Operation Department

132: handle hole

133: Handle connection part

140:Latch tongue

145: First sliding hole

147:Second sliding hole

150:Retainer

151:pin

152:Retainer hole

160: Elastic parts

170:Screw

Claims (12)

A latch for locking a first article (300) to a second article (400), wherein the latch includes: a housing (101) mounted to the first article (300); a handle (130 ), at least partially disposed in the housing (101), and rotated between a first position and a second position relative to the housing (101); a lock tongue (140), at least partially disposed in the housing (101) In the housing (101) and connected to the handle (130), when the handle (130) moves to the first position, the lock tongue (140) is driven by the handle (130) to at least The locking position of the housing (101) is partially extended. When the handle (130) moves to the second position, the lock tongue (140) is driven by the handle (130) to withdraw the housing. The unlocking position in the body (101); the retaining member (150) is connected to the locking tongue (140), and when the locking tongue (140) is in the locking position and the unlocking position, the locking tongue (140) is in the locking position and the unlocking position, respectively. The lock tongue (140) remains in the locked position and the unlocked position. The latch according to claim 1, wherein the retaining member (150) can rotate relative to the housing (101), and when the lock tongue (140) moves to the locking position, the The retaining member (150) is in a first angular position, and when the lock tongue (140) moves to the unlocking position, the retaining member (150) is in a second angular position; the latch also includes an elastic member (160 ), the elastic member (160) is connected between the retaining member (150) and the housing (101). When the retaining member (150) is located at the first angular position and the second angular position, position, the elastic member (160) respectively maintains the retaining member (150) in the first angular position and the second angular position. The latch of claim 2, wherein the rotation path of the retainer (150) has a rotation path between the first angular position and the second angular position. Stop point; when the retainer (150) is located between the first angular position and the stop point, the elastic member (160) biases the retainer (150) toward the first angle. position; and when the retaining member (150) is located between the second position and the dead center, the elastic member (160) biases the retaining member (150) toward the second angular position . The latch according to claim 3, wherein the elastic member (160) and the retaining member (150) rotate relative to the housing (101) and are configured to: when the retaining member (150) is located at When between the first angular position and the dead center, the elastic member (160) is located on one side of the rotation axis of the retaining member (150), thereby exerting force on the retaining member (150) toward the third Moment at an angular position; when the elastic member (160) is located between the second angular position and the stop point, the elastic member (160) is located on the other side of the rotation axis of the retainer (150) one side, thereby exerting a moment on the retainer (150) towards the second angular position. The latch of claim 4, wherein the handle (130) rotates about a handle axis (A1) and the holder rotates about a holder axis (A2) substantially parallel to the handle axis (A1). The latch according to claim 5, wherein the retainer (150) includes: a retainer hole (152), where the retainer axis (A2) is opened, and the retainer (150) passes through the retainer hole. (152) is sleeved on the retainer shaft (114) in the housing (101), and the pin (151) is approximately parallel to the retainer hole (152) and located with the retainer hole (152). At the opposite ends of the retaining member (150), the pin (151) is inserted into the second sliding hole (147) of the lock tongue (140), so that the retaining member (150) follows the The lock tongue (140) rotates due to the sliding movement; Both ends of the elastic member (160) are respectively connected to the pin (151) and the elastic member connection portion (116) in the housing (101), so that the elastic member (160) follows the holding Piece (150) rotates. The latch according to claim 6, wherein the lock tongue (140) includes: a sliding portion (141) disposed in the housing (101) and along the sliding portion in the housing (101). The groove (115) slides; the locking part (142) extends from the sliding part (141) along the sliding direction of the locking tongue (140). When the locking tongue (140) is in the locking position, The locking part (142) extends out of the housing (101) and can be locked to the second object (400); a protruding part (143) extends from the sliding part (141) toward the handle (130) , a first sliding hole (145) is opened in the protruding part (143), and the handle connection part (133) of the handle (130) is inserted into the first sliding hole (145), so that the lock tongue (140) slides as the handle (130) rotates. The latch according to claim 7, wherein the sliding part (141) has two sliding walls (148) opposite to each other transversely to the sliding direction, and each of the sliding walls (148) forms a second sliding wall. hole (147), the retainer (150) is at least partially accommodated in the accommodation space (146) between the two sliding walls (148), and both ends of the pin (151) are inserted into placed in the two second sliding holes (147). The latch according to claim 8, wherein the handle (130) includes: an operating part (131) operable from the outside of the housing (101); a handle connection part (133) connected to the The operating part (131) is opposite and connected to the first sliding hole (145) of the lock tongue (140), so that the handle (130) drives the lock tongue (140) to move; and The handle hole (132) is located between the operating part (131) and the handle connection part (133), and is rotatably connected to the handle shaft (113) of the housing (101). The latch according to claim 9, wherein the operating part (131) is configured so that when the handle (130) is in the first position, the operating part (131) is close to the housing ( 101); When the handle (130) is in the second position, the operating part (131) leaves the housing (101) and is easily exerted a pulling force to cause the first object (300) to leave the housing (101). The second object (400). The latch according to any one of claims 1 to 10, wherein the housing (101) includes: a first housing (110) having a bottom wall (111), from the bottom wall (111) A vertically extending side wall (112) and an open top opposite the bottom wall (111), the lock tongue can extend through the side wall (112) to the outside of the housing (101); the second housing (120), close the open top of the first housing (110) to form a closed space. A latch system, comprising: the latch (100) as described in any one of claims 1 to 11; another latch (200) provided on the first object (300) and along the The transverse direction of the connection of the first object (300) to the second object (400) is arranged symmetrically with the latch (100).

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