KR870000314Y1 - Latch bolt assembly with selectively adjustable spindle backset - Google Patents

Abstract

No content.

Description

Clasp structures for mounting doors and the like

1 is an elevational view of a latch bolt assembly applying the preferred embodiment of the backset adjustment principle of the present invention, the bolt of the latch bolt assembly being in an extended position and minimal backset by insertion of an insert (isertn).

FIG. 2 is the same as in FIG. 1, but changes to maximum backset by lifting the insert.

3 is a partial horizontal cross-sectional view of the arrow 3-3 line of FIG.

FIG. 4 is a view similar to the third diagram with arrows 4-4 in FIG. 2. FIG.

5 is a vertical sectional view taken along the line 5-5 of FIG.

6 is a vertical sectional view taken along line 6-6 of FIG.

7 is a partial vertical cross-sectional view taken along the line 7-7 of FIG.

8 is a perspective view of arrows 8-8 of FIG. 6, which are the same as in FIG.

9 is a partial vertical cross-sectional view of arrow 9-9 of FIG.

FIG. 10 is a partial vertical cross-sectional view taken along line 10-10 of FIG.

11 is an enlarged perspective view of an insert that can be selectively lifted from the latch bolt assembly.

12 is an enlarged perspective view of a sleeve lifted from the latch bolt assembly.

13 is a vertical sectional view taken along the line 13-13 of FIG. 12;

* Explanation of symbols for main parts of the drawings

20: fixed casing 22: bolt

24: front bolt housing 26: face plate assembly

30: rear casing extension portion 32: latch operation plate

34: spindle 36: clasp operation surface

38: operation engaging portion 40: sleeve

42: protrusion 44: slot

46: fastener opening 48, 50: latch operation plate notch

52: operation opening 54: insert

56: turning 58: insert insert

60: operating surface

The present invention relates to a clasp bolt structure which is usually used for doors and has a unique operation back set device that can be selectively adjusted.

More specifically, the present invention relates to a clasp bolt variable backset device that provides a variable backset dimension using a selectively retractable insert, the insert being inserted into the assembly at the front, i.e., the minimum backset dimension. In the case of the rear, that is, the maximum backset dimension, it is lifted.

Therefore, the clasp bolt assembly to which the unique structural principle of the present invention is applied can selectively convert the required backset dimension from the minimum to the maximum by a simple conversion method, and can also extract the insert for the dynamic conversion.

In a conventional clasp structure attached to a door, the backset dimension is the longitudinal direction of the transverse axis, in which the clasp operation (usually a spindle) extends or pulls the bolt of the clasp structure from the end of the door from the tip of the fixed casing. Distance to the rear.

This dimension is in most cases industrial standardized.

When purchasing such a standardized clasp structure for general use, the backset dimensions are usually standard, and in practice this dimension is calculated from the front exposed surface of the face plate, ie the fixed frame, or the tip of the casing, to which the clasp is attached. do.

If controlled, the front face of the faceplate is buried in alignment with the end of the door, so in most cases, the backset dimension is the distance from the end of the door to the axis of the clasp.

Conventionally, the most common backsets have been standardized to 2 and 3/8 inches, and in this regard, it has been common to know how many backset dimensions are prior to attaching the clasp, so the standardized standard and other clasp structures have been standardized. High compatibility has been allowed between them. While it is true that there are some unusual clasp structures with special backset dimensions, they have always been considered to be insignificant because of their different specifications, except that individual considerations are required to ensure proper attachment.

In recent years, however, more backset dimensions have been produced for a variety of reasons, including providing longitudinal lengths for larger bolt throws.

That is, the longitudinal distances that allow the bolts to operate between the pulled and extended positions in sequence have a reason to provide more stability.

Therefore, an increased standard of backset dimensions has been adopted in the industry, which is 2 and 3/4 inches larger than the first standard bag set.

Most manufacturers of clasp structures have met the need to vary two sets of backsets by simplifying the production and sales of multiple clasp structures with only two models.

One model is 2 and 3/8 inches to meet the previous standard bag set requirements, while another model is available at 2 and 3/4 inches to provide a new standard bag set. It must be relatively expensive.

Thus, there is a need to create a single model clasp structure that can be relatively quickly and easily selectively adjusted between two standard backset dimensions, 2 and 3/8 inches and 2 and 3/4 inches. The desire of is getting urgent.

However, the method for implementing this adjustment should be relatively simple.

Attachment of the clasp structure is carried out by a professional who is well versed in the field of the clasp structure. In this case, the adjustment is easy. However, even ordinary householders who have not been trained in this field are quite similar to the former case. In this case, the problem of easy adjustment is of great importance.

Accordingly, it is an object of the present invention to provide a door attachment clasp bolt assembly in which the characteristic principle of unique backset adjustment is applied, wherein the unique device includes at least two dimensions (front, ie, minimum backset) for the backset for the clasp bolt assembly. Can be selectively adjusted between and rear, i.e., the maximum backset), and the conversion for this adjustment is relatively simple, as the insert can be selectively inserted or exposed in the assembly, making it simple for anyone without skill.

In a preferred embodiment, the insert for the minimum backset is inserted into the assembly and transmits the transverse clasp operation to the clasp at the rear and, in turn, to the clasp at the front. Done. In the maximum backset state, the insert is lifted out of the assembly, and then the transverse operation portion is directly engaged with the latch operation mechanism so that the operation of the operation portion is directly transmitted to the latch bolt at the front.

A larger object of the present invention is to provide a clasp bolt assembly utilizing the convertibility of the insert backset, wherein the assembly of the preferred embodiment, when the insert is in the assembly, is characterized by the special formation of the clasp bolt operating mechanism. At least a portion is assisted to hold the insert in place in its assembly.

As described above, the insert is positioned laterally adjacent to a part of the clasp operation mechanism, and can be operated in the longitudinal direction in the clasp bolt fixed casing according to the order.

The clasp bolt fixing casing has an adjacent surface for the insert to act on it, and the insert is held in a laterally assembled position so that it can be selectively lifted but held in a maneuverable position.

It is also an object of the present invention to provide a clasp bolt assembly of the general nature as described above, in a preferred embodiment a sleeve which can be positioned within the assembly and optionally lifted by nesting on the clasp operation mechanism. It may include, the sleeve is to hold the insert at least in the appropriate position as the operating mechanism when the insert is inserted, it is to play a role in helping to operate properly.

The sleeve is formed by nesting a part of the fixed clasp casing in the assembly, preferably confining both the part of the clasp operation mechanism and the insert in the transverse direction, so that the insert can act in the transverse direction. I'm watching. In order to selectively lift the insert, the first step is to selectively lift the nesting sleeve, which is all done in a simple and efficient manner.

In a preferred embodiment, the unique sleeve has, in addition to this insert holding function, an additional function for the entire clasp bolt structure.

For example, this sleeve has a hole which transversely for installing an operation part.

That is, the insert is assembled for the minimum backset dimensions. The manipulator is guided in alignment with the insert, and once lifted for maximum backset dimensions, the sleeve is preferably inverted and re-laid at the less inlaid position while guiding the manipulator to the rear functional position.

And when lifted for maximum backset dimensions, the sleeve must be fitted with transverse clasp fixing holes that align properly with the entire assembly in the replacement sleeve position to securely hold the latch bolt assembly properly positioned in the replacement backset position. It is desirable to.

Other objects and advantages of the present invention will be apparent from the following description and accompanying drawings for purposes of illustration.

Referring to the present invention by the accompanying drawings as follows.

In Figures 2, 4, 9 and 10, the basic situation regarding the improvement of the selectively adjustable spindle backset according to the present invention is illustrated as a spring-shaped, slightly customary latch bolt assembly.

However, this is not intended to limit the principle of the present invention to the structure according to this special situation, but rather to be widely interpreted so that it can be applied to various types of clasp assemblies.

In addition, the clasp bolt assembly including an improvement of the present invention is manufactured by a general practitioner by a general manufacturing method well known to those skilled in the art of manufacturing a common material, unless otherwise specified in the future. .

The illustrated spring latch bolt assembly generally includes a longitudinally extending fixed casing, generally indicated at 20, which reciprocally engages the bolt, indicated at 22, with the bolt as normally illustrated. It is elastically pushed to its extended position but can also be moved to a position fully inserted in the casing. In particular, the casing 20 is connected to a face plate assembly 26 having a front surface 28 at its tip, and is formed by a front bolt housing 24 connected rearward by a rear casing extension 30.

The bolt 22 reciprocates in the bolt housing 24 and is connected to the latch operating means in the form of a latch operating plate 32 projecting rearward of the bolt, and is superposed by the rear casing extension 30. .

To date, the clasp bolt assembly is standard in nature and is housed in a hole suited to a door (not shown), wherein the faceplate assembly 25 is opposed to the end of the door while mating the surface 28 with the short surface of the door. Reference numeral 22 is in a position protruding from the end of the door. The rear casing extension 30 is fixed to the door while fixing the entire shackle bolt assembly in the door.

The transversely extending control section, in this case the usual semi-circular spindle 34, is located between the two surfaces of the door and extends transversely through the door, and at the control panel engaging portion 38 at the rear end of the clasp operation panel 32. It engages in the engagement surface 36 which extends in the horizontal direction facing forward, and is spaced apart and the rear casing extension part 30. As shown in FIG.

As such, when the spindle is rotated by an attached door handle (not shown), a rearward force acts on the clasp operation plate engaging surface 36 to move the clasp operation plate 32 to the rear and to move the bolt 22. It will retract from the extended position as indicated to the retracted position into the bolt housing 24.

In more detail with respect to the improvement of the present invention, the backset dimension of the clasp bolt assembly is the keying portion or semi-circular spindle 34 in the longitudinal direction from the front end of the casing 20, ie from the surface 28 of the faceplate assembly 26. Point out that the distance to the abscissa of the

According to the improvement of the present invention, the backset dimension can be adjusted between at least two dimensions.

One is the forward and minimum backset dimensions, 2 and 3/8 inches, standardized for transactional needs, and the other is the rear, maximum backset, standardized to 2 and 3/4 inches.

In the embodiment of the particular latch bolt assembly illustrated, the operating engagement portion 38 of the latch operation plate 32 becomes a trailing engagement portion in the longitudinal direction so that when the semi-circular spindle 34 is engaged thereafter, The maximum backset dimension is used.

Embodiments of the latch bolt assembly adjusted to this rear, ie, the maximum backset dimension, are shown in FIGS. 2, 4, 9 and 10. FIG.

As an example, the rigid sleeve 40 (preferably made of hard plastic) is housed while nesting the rear casing extension portion 30 and the clasp operation plate 32 wrapped therein from the front. The front abutment is a pair of protrusions 42 formed in the rear casing extension 30 spaced apart from the casing bolt housing 24 to the rear.

As shown in Figs. 12 and 13, the sleeve 40 has one end of its inner surface flattened and the other end of the sleeve 40 aligned with the back extension to receive the rear casing extension protrusion 42. A pair of slots 44 are formed. The sleeve 40 in the positions shown in FIGS. 2, 4, 9, and 10 has its ends turned upside down such that the ends having flat inner surfaces face the casing bolt housings 24 in the longitudinal direction. As a result, the trailing casing extension protrusion 42 comes into contact with the sleeve end having the position shown.

The sleeve 40 is formed with a transverse fastener opening 46 close to both ends thereof. The front fastener opening has a suitable rear casing extension and clasp operation board cutout 48 and a transverse direction. Aligned with (50), the rear fastener opening is spaced apart from the rear casing extension portion 30 and the latch operation plate (32).

The sleeve 40 has an operating part opening 52 which traverses therebetween between the fastener openings 46, which operating part opening 52 has a longitudinal trailing end engaging portion 38 of the clasp operating plate 32. And the semi-circular spindle 34 engaged with the operation portion engaging portion engaging surface 36 and extending through the notches 48 and 50.

Thus, the rear assembly, the latch assembly in the maximum backset state, is fixed to a specific door (not shown) by a general fastener (not shown) received through the fastener opening, and the semi-circular spindle 34 is pulled out of its extended position. It is suitably engaged to operate the bolt 22 between the pulled positions.

The latch bolt assembly is moved from the rear, i.e., the maximum backset, to the front, i.e., the minimum backset, i.e., the first, third and fifth from the states shown in Figures 2, 4, 9 and 10. The transition to the state shown in FIGS. 8 to 8 is achieved by first lifting the sleeve back in the longitudinal direction by actuating the sleeve 40 from nesting the trailing casing extension 30.

The insert 54, which is separately shown in FIG. 11, is then inserted laterally into the assembly in the rear casing extension 30 to engage the clasp operation plate 32. As shown in FIG.

As shown in the drawing, the longitudinal trailing portion engaging portion 38 of the clasp operation plate 32 has two protrusions 56 spaced apart, and two front spaces and two spaced apart recesses 58 exposing the insert 54 rearwards. It has the operation part engaging surface 60 which faces the surface.

In this way, in the transverse insertion of the insert 54 through the rear casing extension 30 and the transverse direction of the clasp operation plate 32, the insert recess 58 is formed on the engagement surface 36 of the operation engagement portion 36 previously used. It is engaged rearward above the operating engagement portion projection 56 with the operating engagement surface 60 facing away from the front in the longitudinal direction.

The sleeve 40 is then reversed and overlaid at the rear casing extension 30 in the longitudinal direction again from the front, but the sleeve end with the slot 44 becomes the leading end, thus extending the rear casing. The projection 42 of the part 30 is received into this groove while keeping the sleeve completely forward with respect to the bolt housing 24 as shown.

In the position where the insert is assembled, not only the insert 54 abuts the surface of the clasp operation panel 32, but also the inside of the after-casing extension 30 which helps to hold the insert in the assembled position on the opposite side. It comes into contact with the surface.

And it is nested over the entire assembly as the sleeve 40, and helps to hold the assembly of the insert to be configured to ensure a holding state that can be operated as a whole. Furthermore, with the sleeve 40 rearranged in the longitudinally forward position, the control panel opening 52 is rearranged laterally with the insert control panel engagement surface 60, and the sleeve latch opening 46 is As shown in the figure, the figure is advanced as shown in FIGS. 7 and 8.

Therefore, the latch bolt assembly is in the front, i.e., the minimum backset.

In this state, it is attached to the door (not shown) as before, but it is to be considered that the backset dimension is changed as necessary.

The semi-circular spindle 34 is, of course, inserted laterally through the insert operating portion engaging surface 60 and through the sleeve operating portion 52 which is engaged and newly positioned.

The rotation of the spindle inserts the insert 54 into the clasp operation plate 32 at the rear operation unit engagement portion 38 in the longitudinal direction, thereby injecting the force necessary for the sleeve operation surface engagement surface 60 from the rear side.

Then, the force is injected forward into the bolt 22 through the clasp operation plate 32 to operate the bolt in the stretched and pulled position.

In view of the actual trade, it is desirable that the clasp bolt assembly applying the backset conversion principle of the present article be sold at the front, that is, the minimum backset.

In this case, the insert 54 is inserted into the assembly and the sleeve 40 faces the reverse direction by maximally nesting the rear casing extension 30.

This provides everything the customer needs to attach directly and to assemble for the minimum backset dimensions so that they can be used with the minimum backset.

However, if the consumer needs a rear, ie maximum backset condition, then the complete guidance is given, including that the sleeve 40 can be converted simply by nesting the sleeve 40 first. The sleeve is then in the less nested position as the insert 54 is laterally lifted out of the assembly and the relocation to the reverse of the sleeve is firmly determined by the rear casing extension projection 42. Tell the dog to reposition.

It is therefore a principle of the present invention to provide a unique clasp bolt assembly with an optionally adjustable control panel, ie a spindle backset.

Whereas two separate models were required in the past, a single clasp bolt assembly model could provide both sets of back lengths. If the clasp bolt assembly using the improved principle of the present invention is commercially available, it becomes the front, that is, the minimum back set device, which standardized the first distribution standard to 2 3/8 inch in the industry.

If the consumer wants a rear, i.e. a maximum backset, then a simple conversion of the clasp bolt assembly can be quickly taken to provide a larger backset standardized to 2 3/4 inches.

As described above, the principle of backset adjustment, or transformation, of the present invention illustrates an embodiment of the clasp bolt assembly, but is not intended to limit the principle of the present invention to only that particular embodiment. In particular, the principle of backset adjustment, or transformation, of the present invention should be interpreted broadly so that it can be applied to various types of clasp bolt assemblies, and beyond the specific limitations, to limit the scope or beyond the scope of the utility model registration claim. I don't think it should.

Claims (20)

A bolt reciprocating in the longitudinal direction in the door mounting casing between a position protruding forward from the end of the door and a position pulled almost completely rearward in the end of the door, and longitudinally redirected to move to the bolt; A latch operation means on the casing operatively connected to an operator in the longitudinal direction, the operation means operation portion movable around a transverse axis to operate the operation means for reciprocating the bolt, and the casing In a clasp structure attached to an ordinary door with a longitudinal distance constituting a backset between the tip and the control axis: A longitudinal rear operating portion engaging means over said latch operating means, operatively connected to said operating portion for causing said bolt to reciprocate in accordance with the operation of said operating portion when said operating portion is in the rear backset position; Selectively removable insert means connected to and adjacent to said latch manipulation means extending longitudinally of said aft manipulation portion engaging means; When the manipulator is in the front backset position, to reciprocate the bolt by operating the manipulator to transfer the movement of the manipulator from the latch maneuver to the bolt through the insert means back to the manipulator. And a longitudinal front manipulator engaging means on said insert means operatively connected to said manipulator and spaced longitudinally apart of said after manipulator engaging means. 2. The insert according to claim 1, wherein the insert means can be located in connection rearwardly with the rear manipulator engaging means extending forward, and the longitudinal front manipulator engagement means in the insert means is mounted rearward from the manipulator. A clasp structure for reciprocating the bolt by transferring an action from the rear manipulation unit engaging means to the rear manipulation unit engaging means through an insert means to the bolt through the clasp manipulation means. 2. The insert means according to claim 1, wherein the insert means can be selectively removed from the position adjacent to the manipulation means by moving laterally by the latch manipulation means and engaging with the transverse projection means in the latch manipulation means. The clasp structure, characterized in that connected to the clasp operation means. 2. The insert according to claim 1, wherein the insert means can be located in connection with the rear manipulation unit engaging means extending rearward by engaging with the transverse protrusion means in the rear manipulation unit engaging means. The means can be selectively removed in the transverse direction of the clasp operation means, wherein the longitudinal front manipulator engaging means engages the rear manipulator through the insert means to move the movement from the maneuvering portion backwards by the transverse protrusion means. And the reciprocating motion of the bolt by means and by transferring from the rear manipulator engagement means to the bolt through the clasp manipulation means. 2. The apparatus of claim 1, wherein the operating portion is a semicircular spindle having a generally transversely engaging surface formed thereon; The longitudinal tail engagement means in the clasp manipulation means includes a transverse extension engagement surface in the clasp manipulation means that can be engaged by the manipulation portion engagement surface when the manipulation portion is in the rear backset position; The longitudinally forward manipulation portion engaging means in the insert means includes a laterally extending engagement surface that can be engaged by the manipulation portion engagement surface when the manipulation portion is in the front backset position. . 2. The clasp structure casing according to claim 1, wherein the clasp structure casing includes a rear casing extension extending longitudinally rearward to the clasp operation means, wherein the casing extension includes the clasp operation when the operation portion is in the front backset position. A clasp structure having surface means for at least helping to removably retain the insert means connected adjacent the means. 2. The clasp structure casing according to claim 1, wherein the clasp structure casing includes a rear casing extension extending longitudinally rearward to an adjacent position of the clasp operation means, wherein the rear casing extension extends laterally between both sides of the clasp operation means and the insert means. And an interlocking surface means, said surface means at least assisting in removably holding said insert means connected adjacent said clasp manipulation means when said manipulator is in said omnidirectional backset position. 2. The insert according to claim 1, wherein a selectively removable sleeve can be positioned to overlap the latch manipulation means and the insert means such that the insert is inserted into the latch manipulation means when the manipulation portion is in the front backset position. At least assist in removably retaining the means. 2. The method of claim 1, wherein a selectively removable sleeve may be positioned to overlap the latch operation means and the insert means, wherein the sleeve is operated when the operation portion is in the front backset position. Means may be selectively moved in a first longitudinal position, at least assisting in maintaining and connecting the insert means to the means, the sleeve being such that the insert means are removed and the operation portion is in the rear backset position. A clasp structure, which can be selectively moved when in a second longitudinal position. The sleeve according to claim 1, wherein a selectively removable sleeve can be positioned to overlap the latch operating means and the insert means, wherein the sleeve is operated when the operating portion is in the front bag set position. The sleeve can be selectively moved in a first longitudinal position, at least helping to maintain the connection of the insert means close to the means, the sleeve being when the insert means is removed and the operating portion is in the rear backset position. May be selectively moved to a second longitudinal position, the sleeve having an operating portion opening transversely formed to mate with the operating portion at each of the sleeve first and second longitudinal positions. Clasp structure. The clasp structure casing according to claim 1, wherein the clasp structure casing includes a rear casing extension extending longitudinally in the vicinity of the clasp operation means, and the after casing extension extends to the clasp operation means when the operation portion is in the front backset position. Having surface means for assisting in removably retaining the adjacently connected insert means; An optional removable sleeve may further comprise the after-casing extension, the latch operation means and also assisting in retaining and engaging the insert means removably when the operation portion is in the front backset position. Said insert means being positioned to overlap, said sleeve being stationary with said after-casing extension during said reciprocating movement of said bolt. 2. The clasp structure casing according to claim 1, wherein the clasp structure casing includes a rear casing extension extending longitudinally in the vicinity of the clasp operation means, wherein the casing extension is removably attached to the clasp operation means when the operation portion is in the front bag set position. Having surface means to assist adjacent connection and retention; An optional removable sleeve may be positioned to overlap the rear casing extension, the latch operation means, and the insert means, wherein the sleeve is inserted into the insert when the operation portion is in the front bag set position. Can be selectively moved to a first longitudinal position while assisting to keep the at least one means connected to the clasp operation means, wherein the sleeve is provided with the insert means being removed and the operating portion being located at the rear backset position. And the sleeve may be selectively moved to a second longitudinal position, the sleeve being engaged with the abutment means of the casing while the bolt reciprocates in each of the first and second longitudinal positions. A clasp structure, characterized in that it remains with the extension. 2. The clasp structure casing according to claim 1, wherein the clasp structure casing includes a rear casing extension extending longitudinally in the vicinity of the clasp operation means, wherein the clasp operation means operates the clasp operation when the manipulator is in the front bag set position. Having surface means for assisting in removably holding the insert means connected adjacent to the means; An optional removable sleeve may be positioned to overlap the rear casing extension, the clasp operation means, and the insert means, the sleeve being inserted into the insert when the operation portion is in the front bag set position. The assist means can be selectively moved to a first longitudinal position while assisting to retain the adjoining means adjacent to the clasp operation means, the sleeve being positioned such that the insert means are removed and the operation portion is in the rear backset position. Can be turned upside down in the longitudinal direction and selectively moved to the second longitudinal position, the casing being abutting means engaged by the sleeve when the sleeve is in each of the first and second longitudinal positions Clasp structure, characterized in that having a. 2. The clasp structure casing according to claim 1, wherein the clasp structure casing includes a rear casing extension extending longitudinally in the vicinity of the clasp operation means, and the rear casing extension extends to the clasp means when the operation portion is in the front bag set position. Having surface means for assisting in removably retaining said adjacently connected insert means; Optionally the removable sleeve can be positioned to overlap the rear casing extension, the clasp operation means and the insert means, the sleeve being inserted into the insert means when the operation portion is in the front backset position. Can be selectively moved in a first longitudinal position, helping to maintain the connection adjacent to the latch manipulation means, the sleeve being lengthened when the insert means are removed and the manipulation portion is in the rear backset position. Can be turned upside down and selectively moved to a second longitudinal position, said casing being abutting means engaged by said sleeve when said sleeve is in each of its first and second longitudinal positions; And the sleeve is engaged with the operation portion at each of the first and second longitudinal directions. Has a clasp structure characterized in that it has an operation portion penetrating in the transverse direction. 2. The insert according to claim 1, wherein the insert means can be rearwardly connected and positioned to the rear manipulator engagement means extending forward and the longitudinal front manipulator engagement means on the insert means return the operation from the manipulator to the rear. Reciprocating the bolt by transferring the bolt through the insert means to the rear manipulation unit engaging means and from the rear manipulation unit engaging means to the bolt through the latch manipulation means; The clasp structure casing includes a rear casing extension extending longitudinally in the vicinity of the clasp operation means, wherein the rear casing extension is connected to the clasp operation means connected to the rear operation part engaging means when the operation portion is in the front backset position. A clasp structure having surface means for at least helping to removably hold adjacent said insert means. 2. The insert according to claim 1, wherein the insert means can be rearwardly connected to the rear manipulator engaging means extending forward, and the longitudinal front manipulator engaging means in the insert means stops operation from the manipulator. Reciprocating the bolt backwards by transferring it to the rear manipulation unit engaging means and through the insert means to the bolt through the clasp manipulation means; The clasp structure casing includes a rear casing extension extending longitudinally rearward in the vicinity of the clasp operation means, and the rear casing extension is connected to the rear manipulation unit engaging means when the operation portion is in the front backset position. Having surface means for at least helping to removably retain the insert means adjacent to the latch manipulation means; An optional removable sleeve may be positioned to overlap the trailing casing extension, the latch operation means and the insert means, and rearward to the rear operation portion engaging means when the operation portion is in the front backset position. And at least assisting in removably positioning the insert means adjacent to the latch manipulation means connected to each other. 2. The latch manipulation means according to claim 1, wherein the insert means can be selectively removed from a position adjacent to the clasp manipulation means by moving laterally relative to the clasp manipulation means and engaging with the transverse projection means on the clasp manipulation means. Connected to; The clasp structure casing includes a rear casing extension extending longitudinally in the vicinity of the clasp operation means, wherein the rear casing extension removes the insert means adjacent to the clasp operation means and engaged with the transverse protrusion means. Having surface means which at least help to hold; An optional removable sleeve may be positioned such that the after-casing extension, the clasp manipulation means and the insert means overlap, the insert adjacent the clasp manipulation means and in engagement with the transverse protrusion means. A clasp structure, at least assisting in removably positioning the at least means. 2. The insert means according to claim 1, wherein the insert means can be located rearwardly connected to the rear manipulation portion engaging means extending forward by engaging with the transverse projection means on the rear manipulation portion engaging means, the insert means being engaged with the latch operation. The longitudinally forward manipulator engaging means is adapted to transfer the operation from the manipulator back to the rear manipulator engaging means through the insert means rearward by the transverse protrusion means. Reciprocating the bolt by transferring it from the non-manipulation engagement means to the bolt through the clasp operation means; The clasp structure casing includes a rear casing extension extending longitudinally laterally to the clasp operation means, the rear casing extension being adjacent to the clasp operation means when the operation portion is in the front backset position and transversely. Having surface means which at least assist in removably holding the insert means engaged with the direction turning means; An optional removable sleeve is positioned to overlap the after-casing extension, the latch operation means and the insert means, and is adjacent to the latch operation means when the operation portion is in the front bag set position. And at least assist in removably positioning the insert means in engagement with the transverse protrusion means. 2. The clasp manipulation according to claim 1, wherein the insert means can be selectively removed from a position adjacent to the clasp manipulation means by moving laterally relative to the clasp manipulation means and engaging the transverse projection means on the clasp manipulation means. Connected to the means; The clasp structure casing includes a rear casing extension extending longitudinally rearward at a position adjacent to the clasp operation means, wherein the aftercasing extension is adjacent to the clasp operation means when the operation portion is in the front backset position and the Having surface means for at least helping to removably retain the insert means engaged with the transverse protrusion means; An optional removable sleeve may be positioned to overlap the trailing casing extension, the latch manipulating means and the insert means, the sleeve operating the latch when the manipulator is in the front backset position. Adjacent to the means and in engagement with the transverse protrusion means can be selectively moved to a first longitudinal position, at least helping to maintain the position of the insert means, the sleeve being free of the insert means and The manipulator may be selectively moved to a second length position when the manipulator is in the rear backjet position, the sleeve penetrating in a transverse direction mating with the manipulator in each of the sleeve first and second longitudinal positions. A clasp structure, characterized in that it has a control panel opening formed. The method of claim 1, wherein the insert means can be selectively removed from the adjacent position of the clasp operation means by moving in the transverse direction with respect to the clasp operation means and by engaging with the transverse protrusion means of the clasp operation means Being connected to the latch operating means; The clasp structure casing includes a rear casing extension extending longitudinally rearward to an adjacent position of the clasp operation means, wherein the rear casing extension is adjacent to the clasp operation means when the operation portion is in the front backset position and the Having surface means to help removably hold the insert means engaged with the transverse protrusion means; An optional removable sleeve may be positioned to overlap the after-casing extension, the latch manipulation means, and the insert means and the sleeve may be inserted into the insert when the manipulation portion is in the front backset position. Wherein the assist means can be selectively moved in a first longitudinal position while assisting in positioning in engagement with the transverse protrusion means adjacent to the clasp operation means, the sleeve being free of the insert means and The operation portion can be turned upside down in the longitudinal direction when it is in the rear backset position and can be selectively moved to the second longitudinal position, the casing being moved when the sleeve is in its first and second longitudinal positions. A clasp structure having a contact means engaged with a sleeve.