JPS6030832B2 - Striker device used with enclosure door latches - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a striker device for use with enclosure door latches, and more particularly to an improved striker device for use with freezer and other doors that can be easily and conveniently mounted to the door jamb. The present invention relates to a safety release device that allows people trapped inside a structure including a door to easily and quickly open the door and escape.

A device of this type is known from US Pat. No. 2,762,645.

In this device, a bolt is horizontally slidably mounted on the door as a latch member, and a two-pronged finger is pivotally attached to a housing fixed to the door frame, and this finger serves as a striker member at the tip of the bolt. The roller is constantly biased by a spring to press against the door bolt. On the other hand, a wedge-shaped member slidably provided in the housing has a shaft that protrudes into the door frame, and by urging this shaft into the door frame with a coil spring, the entire tapered surface of the wedge-shaped member is always maintained. It is attached to the back surface of the forked finger to prevent the forked finger from rotating back due to an accidental external force. A person trapped inside the door frame should use one hand to push the shaft of the striker device located inside the room to release the wedge-shaped member from the forked finger, and use the other hand to push the striker device away from the forked finger, against the spring force of the door latch device. It can be opened by pressing the button. However, a person trapped inside the door frame must perform a double operation of pushing the door while pushing the shaft of the striker device. Additionally, not only does it require extra force to overcome the spring force of the direct door latching device to release a permanently locked latching device, but in the unlikely event that the spring-locked latching device accidentally becomes unlatched for some reason. If activated or stuck, the trapped person cannot release the latching device by activating the striker device. The object of the invention is to eliminate the above-mentioned drawbacks and to
To provide a striker device which eliminates the need to directly operate a door latch set in a locked position by a spring against the spring force, and which can easily open a door from the inside of an enclosure with only continuous pushing operations. It is to be.

- The above object can be achieved by the present invention as follows.

That is, a striker member having a surface disposed in the path of the latch member associated with the door latch in the locked state and capable of retaining the latch member, and a safety release means acting independently of the door latch. The safety release means can be locked by the door latch in order to force the striker out of the path of the latch member, lock the door, and allow access to and from the enclosure without substantially moving the latch member. The safety release means can be operated from inside the enclosure to be stopped, and the safety release means includes a shank member that supports the striker member and is rotatably supported around the first pin, and a shank member that supports the striker member and is rotatable around the second pin. a link member that is rotatably supported as a link member; a lever member that cooperates with this link member and is rotatably supported around a third pin; and a lever member that is rotatably supported around a third pin; and an operating shaft that cooperates with the link member to rotate the combination of the link member, the shank member, and the striker section about the first pin, and only after that, the operating shaft is in the locking position. The lever member prevents the striker member from rotating during the normal state, and the lever member engages with the link member during the normal state to prevent the link member from rotating around the first pin. This can be achieved with equipment. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to embodiments. The same elements are designated by the same numerical symbols throughout the drawings. In FIG. 1, a latch device 10 and a striker device 11 are shown separated and spaced apart from each other. A latch device 101 is shown in FIG. 1 with a gasket 1 of a known type.
5 is attached to the edge green of the door 14.

For illustrative purposes, the door 14 is illustrated as a door of a freezer or refrigerator compartment to which a person can enter. FIGS. 3, 4, and 5 further illustrate some of the internal mechanisms of the latching device 10 more clearly.

For example, a latch member 16 is pivotally mounted on a pin 17 that is supported by the wall of the latch housing 12. Handle 13 is similarly pivotally mounted with a pin 18 which similarly extends within latch housing 12. Each pin 17 and 18 is
It passes through the inside of the housing 12 in FIG. A curved groove hole 19 formed at the base of the handle 13 of the latching device
is adapted to accommodate the pin 17 while the handle 13 is pulled by the user to open the door.

In a preferred embodiment of the invention, the wall of handle 13 defining the distal end of slot 19 acts as a positive stop to limit movement of actuating handle 13 into contact with the evaluation surface of pin 17. do. The handle 13 is further formed with a chamfer or flat part 20 above the slot 19, which flat part joins the vertical wall 21 of the handle 13 and the edge of the slot 19. There is. Recess 22
is the substantially vertical surface 23 and the lower surface 24 of the handle 13.
This recess is adapted to provide operational clearance for a portion of the latch member 16, as will become clear from the description below. Of course, the outer surface and gripping part of the handle 13 are highly polished,
The handle is smooth and has no sharp edges or edges that may cause an obstruction, making the handle easy and comfortable to operate. Latch member 16 is illustrated herein as a friction-type latch, as opposed to a roller-type latch.

The present invention contemplates the use of many different types of handle shapes and latch members without departing from the scope and spirit of the invention. The latch member 16 has a suspended chest 25 integrally formed with a hook portion 26 forming a recess 27 therebetween. The boundary of the dowel recess 27 furthest from the pin 17 is defined by the bearing surface 28 of the hook part 26. An intermediate section 29 having an upper surface 30 connects the hanging leg 25 with the hook section 26 to form a unitary structure. The latch member 16 is pivotable between two end positions, one of which is shown, for example, in FIG.

From the position shown in FIG. 3, the latch member 16 is pivoted counterclockwise about the axis of the pin 17 and
The outer inclined surface 30 of the handle 13 can also be placed in a position such that it supports the relief surface 20 of the handle 13. Therefore, when the door 14 is closed by a person holding the handle 13, the latching action performed by the latching member 16 can be actuated independently of the handle itself, so that when the operator closes the door 14 with a snap, You won't experience any shaking of the steering wheel. It has already been mentioned that the present invention contemplates the use of the new safety striker device with various types of latching devices. For illustrative purposes, the latching device 1 has a key (not shown).
It is shown as having a cylinder lock assembly 31 which can be locked and unlocked by the cylinder lock assembly 31. By inserting the key into the cylinder body 32 of the cylinder lock assembly 31 and rotating it, the user can lock the lock plate 3 which is cooperatively supported by the cylinder body 32.
3 upwards, thereby preventing the handle 13 from rotating. For example, FIG. 3 shows the locking plate 33 in the locked position, and by interposing the locking plate 33 in the passage in the lowermost inner portion of the handle, the pin 18 Handle 13 centered on Fujishin
counterclockwise rotation is prevented. If the user were to pull the handle 13 outward,
The lowermost portion of this handle abuts the locking plate 33, thereby causing the striker member 7 to move as described in more detail below.
1 prevents the counterclockwise pivoting movement required to remove latch member 16 from 1. Similarly, by rotating the key in the opposite direction, the check plate 33 is lowered and a user outside the enclosure closed by the door 14 can enter or leave the enclosure. It is important to stress again that the striker device 11 can be used with other types of lockable latching devices, such as those capable of accommodating padlocks. In many such cases, a device for attaching a padlock is provided within or on the handle of the latching device. Attention is now directed to the striker device 11 that interacts with the latch device 10 of the preferred embodiment described herein.

The striker device 11 is mounted in any suitable manner so as to be supported by a stationary door jamb, indicated generally at 34 in the figure. For illustrative purposes only, the door jamb 34 is shown in FIG. 3 as a composite of plates 35 of insulating material to which a cover plate 36, for example of metal, is secured together. A gasket 15 is applied to the cover plate 36 to provide a reliable, substantially air-tight seal. The striker device 11 consists of a housing 37 formed with outwardly extending flanges 38 and 39.
, 39 are supported on the circumferential surface of the cover plate 36 near a closing opening 40 formed in the door jamb 34.

The closure may have any suitable shape to accommodate the housing 37 of the striker device. The housing 37 is secured to the door jamb 34 by flat-faced bolts 41;
The bolts 41 pass through the cover plate 36 through the countersunk holes in the flanges 38 and 39, pass through the plate 35 made of insulating material, pass through the inwardly facing flanges 42 and 43 of the bracket 44, and finally are screwed into respective nuts 45. It penetrates like that. The bracket 44 has an operating shaft 4 of the striker device on its rear wall 46.
8 serves to support the rear end of the striker device 11. The mounting plate 49 is attached to the rear wall 4 by vertical fittings or bolts 50 which pass through the mounting plate 49 and are threadedly engaged with the rear wall 46.
It is fixed at 6. The mounting plate 49 serves as a bearing surface against which the helical compression spring 51 abuts at one end. At its opposite end, a spring 51 abuts a hub 52 of a knob 53, which is fixed to the working shaft 48 by a roll pin 54. As will become clear in the following description, it is the knob 53 that is utilized to actuate the striker device 11 by the confined person. A striker device housing 37 carries a third pin 55 and a first pin 56 extending therethrough. The third pin 55 may be a roll pin or other suitable fixed shape, but the first pin 56
Preferably, it is a solid cylindrical member. A lever member 57 is pivotally attached to the third pin 55 and is disposed within an internal hollow portion 58 defined by the wall of the housing 37 . The upper end of the hollow portion 58 terminates in an elongated slot 59 having a generally cylindrical groove 60 formed at its rear end. The provision of the slots 59 and grooves 60 allows the components of the striker device placed within the hollow portion 58 to be set up fairly easily and inexpensively. The lever section 57 has a generally elongated shape with a downwardly directed mounting hub 61 integrally fixed to the tail section 62 at one end and a downwardly directed finger piece 63 at the opposite end.

The tail portion 62 extends into the aperture 64 in the rear wall of the housing 37 such that counterclockwise movement of the lever member 57 is limited by the abutment of the tail portion 62 against the upper surface of the aperture 64 in the rear wall. It has become. The lever member 57 is constantly biased counterclockwise around the axis of the third pin 55 by a helical compression spring 65. The vertical dimension of the hole 64 in the rear wall is sufficiently large so that clockwise movement of the tail portion 62 about the axis of the third pin 55 is unimpeded. The shank member 66 has a countermeasure pin 56.
A mounting hub or boss 67 is formed which is pivotally connected to the
The shank member 66 freely pivots by a limited amount around the center of the first pin 56.

Approximately midway along the shank member 66 and approximately perpendicularly above the first pin 56, a first pin 68 is secured so as to extend between flanges 69 forming an integral part of the shank member 66. The second pin 68 forms a support means for the link member 70, and the front end of the link member is pivotably supported by the second pin 68. Before discussing the link member 70 in more detail, the structure of the Harube village 66 will be clearly described. Among other uses, the twill member 66 is
It serves as a support means for the striker member 71.

What forms a mirror stop structure between the latch device 10 and the striker device 11 is a striker member 71 that acts in cooperation with the latch member 16. L-shaped bracket 72 formed by a vertical leg 73 and a slightly shorter horizontal leg 74
However, the striker member 71 and the rear member 66, which is its basic support member, are interconnected. Elongated vertical legs 73 of bracket 72 are secured to shank member 66 by fasteners or bolts 75. Vertical adjustment of the striker member 71 is facilitated by providing a groove-like opening in the leg 73 to accommodate the bolt 75. Similarly, the bolt 76 extends through an elongated hole formed in the leg portion 74 of the bracket 72 and is threadedly engaged with the striker member 71, thereby horizontally positioning the striker member 71 relative to the striker device 11. Can be adjusted. Now considering the link section 701, its shape and arrangement are somewhat unique and have a great deal of bearing on new interrelated movements between these various internal elements housed within the housing 37. .

The link member 70 has an upright finger 77 which, when the striker device 1 is in the emergency operating state,
abuts against the finger piece 63 of the lever member 57, thereby causing the third
As shown in the figure, movement of the link member 70 toward the left is prevented. The link member 7 is further formed with an irregular body portion 78 and an elongated slot 79 formed therein. The slot 79 is horizontally shortened and extended a distance;
It then extends upwardly at an obtuse angle to the substantially horizontal extension. A pin 80 fixed to the front end of the working shaft 48 extends through the horizontal extension of the slot 79 and is pressed rearwardly against the end of the horizontal extension of the slot 79 by a helical compression spring 51. ing. Considering the cooperation and interaction between the several elements of the striker device 11, first the fingers 6 of the lever member 57 on the younger brother 1.
3 and the interfering support action between the fingers 77 of the link member 70, the shank member 66 is centered around the axis ○ of the first pin 56.
First of all, it must be noted that counterclockwise rotation of is always prevented.

In this way, the striker member 71 and the latch member 16
A reliable coin holder function is achieved between the hook portion 26 of the coin and the hook portion 26 of the coin. When the cylinder lock assembly 31 is locked by the locking plate 33 and the handle 13 is prevented from completing its rotation, a person on the outside of the door 14 cannot
It is not possible to enter or exit the enclosed enclosure. If this person pulls the handle 13, he or she will find that it is locked relatively quickly. Cylinder lock assembly 3
1 is unlocked or unlocked by the owner of a key comparable to this cylinder lock assembly.
By pulling on the handle 13 to rotate it counterclockwise about the axis of the pin 18, the latch section 16 rotates about the axis of the pin 17 until the hook portion 26 leaves the permanently stationary striker member 71. Although the description in the previous chapter of the operation of the handle 13 and latching device 10 is interesting, it is of no use to a person trapped inside the freezer by the door 14.

As is clear from FIGS. 3, 4, and 5, according to the present invention,
The latch device 101 allows a trapped person who cannot be rescued from outside the locked freezer to push the knob toward the left in FIG. 3 or toward the door 14 against the compressive force of the coil spring 51. You can see that you can press 53.

When the knob 53 is pushed by the trapped person, the working shaft 48 and its pin 80 move as well, so that the pin 80 moves forward in the slot 79 towards the bar 66. During the initial movement in this direction, pin 80 moves freely without engaging any interfering surfaces. However, once the pin 80 has moved a sufficient distance to engage the wall 81 delimiting the left end of the slot 79, the force of the trapped person pushing on the knob 53 causes the pin 80 to engage the wall 81. Pressed. As a result, an eccentric force is applied to the wall 81, which eccentric force is displaced an eccentric or offset distance below the axis of the second pin 68. In this way,
A moment or turning force is generated, resulting in the link village 7
0 towards the position better shown in FIG.
Rotate clockwise around axis ○ of 8. Of course, it is not necessary for the link member 70 to be forced to this distal position shown in FIG. Rotating around the heart allows it to occupy many non-interfering positions. 5 more people who are trapped
By pushing 3, yet another moment or eccentric force is created.

This second or additional moment, occurring subsequent to the moment or pivot of the link 70 about the axis of the second pin 68, is caused by forces eccentric and above the pivot of the first pin 56. Become. To put it more simply, the force is applied to the wall 81 by the pin 80' pushed against the wall 81 of the link member 70.
The substantially horizontal force caused by the force transmitted through the click-link member 70 toward the second pin 68 and thus through the working shaft 48 initially forces the first pin 56
and the axis D of the second pin 68 and are eccentric at a certain distance. Turn in the direction of Hannichiji Kei. This counterclockwise rotation of the shank section 66 about the center of the first pin 56 is easily performed by first rotating the link section 70 out of the interference state with the lever member 57. . Figure 5 shows the first pin 56
It shows the position where the camphor village 66, the bracket 72, and the striker member 71 are rotated counterclockwise around the axis of the figure. The striker member 71 is actually the striker device 1
It should be noted that during operation of 1, the latch member 16 pivots out of locking and interference with the hook portion 26. The striker member 71 merely assists the suspension leg 25 to gently push the door 14 open to the position shown in FIG. At this time, there is no need to rotate the latch member 16 counterclockwise about the pin 17 in any other way. In this way, the latch section 16 and the cylinder lock assembly 31
No movement or manipulation of the components is necessary with the present invention. This is because when the trapped person presses the knob 53, the striker member 71 pivots out of the interference path of the hook portion 26 of the latch member 16. Therefore, there is no need for bearing or interaction between the striker member 71 and the bearing surface 28 of the hook portion 26. It should be emphasized here that the relative sizes of the fingers 63 and 77 and the protruding links are predetermined and can be varied.

Thus, the present invention is intended to perform the double pivoting action described above and illustrated in FIGS. 4 and 5 without displacing the lever member 57 about the axis of the third pin 55. ing. In other cases reflecting mere design choices, the fingers 77 of the link member 70 may be slightly engaged with the ends of the fingers 63 so that the lever member 57 resists the compressive force of the coil spring 65. The second pin 55 can be rotated clockwise around the center of the bag. It should be further emphasized that the pivoting movement of the lever member 57 just described is not absolutely essential compared to the function according to the intended purpose of the invention. For example, it is desirable to minimize the force required by a trapped person on the knob 53, and in such cases, the less interference between the elements that make up the striker device 11, the better. . Next, FIG. 6 will be explained. FIG. 6 shows the latch device 10' and the striker device 11' in partial section. For illustrative purposes, FIG. 6 has been added to the other figures and shows a latching device 10' that utilizes a combination of latching rollers and tongue assemblies.
and the use of another preferred commercially available embodiment of the striker device 11'. It will be appreciated that in this figure, each component of the striker device 11' has been designated with a numeral ('), corresponding to the same locations as previously shown for the striker device 11. By doing so, the reader will be spared the burden of comparison and will see that the operation of the striker devices 11 and 11' is substantially the same. It has already been mentioned that the striker device 11 and the striker device 11' can be used with various types of latching devices.

However, although satisfactory and novel results may be obtained with the use of other types of latching devices, the use of striker devices 11 and 11' with one type of latching device is most advantageous and optimal. is even more desirable. In FIG. 6, a (') has been used adjacent each reference numeral that corresponds to the reference numeral of the latching device 10.

However, latching device 10' uses a tongue device 86 having pins 87 and 88 extending therethrough. Pin 87 is
This serves as a means for supporting the tongue device 86 so as to be able to pivot around the center of the pin 87. The pin 88 connects the striker device 11'
It serves as a rotational support for the latch roller 84 that engages with the striker member 71 or 71' during the coin purse state. The latch roller 84 is the same as the latch member 1 already described in connection with FIGS. 1-5.
6 and acts in an equal manner. Spring support rod 82
By using a helical spring 93 supported above,
The tongue device 8 resists the gradually increasing spring force of the leaf spring 85.
6 is facilitated in the clockwise pivoting motion.

Further, the action of the striker device 11' is similar to that of the striker device 11'.
1, and a person trapped in a freezing room can operate these new means to escape.

The embodiments of the invention disclosed and described above are merely examples of the invention.

It goes without saying that those skilled in the art can easily suggest various other inventions, variations, and modifications without departing from the scope and spirit of the invention as set forth in the claims. do not have. In the present invention, since the door latch itself is prevented from breaking due to a strong spring as in the past and is provided with a safety release means that operates independently of the door latch, an extra force that overcomes the spring force of the door latch is provided. is unnecessary, the work of the trapped person trying to escape is significantly reduced, and the door can be opened from inside the enclosure very easily by simply pressing the knob of the striker device in succession.

[Brief explanation of the drawing]

1 is a partial perspective view illustrating the mutual relationship between a striker device according to the present invention and an associated lockable latching device and shown in a separated state; FIG. 2 is a partial perspective view of the striker device of FIG. 1; 3 is a partial sectional view taken along line 3--3 of FIG. 2; FIG. 4 is a partial sectional view taken along line 3--3 of FIG. 2; FIG. FIG. 5 is another partial sectional view similar to FIGS. 3 and 4, but showing the mutual relationship of movable parts of the mechanism according to the present invention. FIG. 6 is a partial cross-sectional view similar to that shown in FIG. 3, showing the striker device in the locked position, and shows the preferred embodiment of the present invention utilizing a latch device having a roller tongue device. FIG. 2 is a diagram showing a marketable embodiment. 10... Latch device, 11... Striker coating, 14... Door, 16... Latch member, 4
8... Acting means, 55... Third pin,
56...First pin, 57...Lever member, 66...Bar member, 68...Second pin, 70
...Link member, 71...Strike member, 72...Bracket. Fノ○ノ'/G3 'ノ02 Fノ○. Child'no G5 〆ノ6.6

Claims (1)

Claims: 1. An enclosure of the type having a movable latch member releasably engaged with a stationary striker member and adapted to be held captive by the striker member when in a locked state. In a striker device for use with a body door latch or the like, a striker member having a surface disposed in the path of the latch member 16 associated with the door latch in a locked state and capable of retaining the latch member 16. 71 and safety release means operated independently of the door latch, the safety release means forcing the striker member 71 out of the passageway of the latch member 16 to unlock the door and substantially release the latch member 16. The safety release means is operable from inside the enclosure locked by a door latch to allow access to and from the enclosure without movement, and the safety release means supports the striker member 71 and the first pin 56.
A rod member 66 rotatably supported around the axis of the second pin 68 , a link member 70 supported rotatably around the axis of the second pin 68 by the rod member, and a link member 70 that cooperates with the second pin 68 . The lever member 57 which functions and is rotatably supported around the axis of the third pin 55 and the second pin 68
The link member 70 is rotated about the axis of the first pin 56, and only after that, the combined link member 70, the rod member 66, and the striker member 41 is rotated about the axis of the first pin 56. The lever member 57 prevents rotation of the striker member 71 during the normal state when the operating shaft is in the locking position, and the lever member 57 engages the link member 70 during the normal state. It is characterized in that it is adapted to engage and prevent rotation of the link member 70 around the first pin 56. Striker device used with enclosure door latches.