Patent Application
20170291190
Generally, caulk is usually used to fix gap, crack, crevice in buildings and decoration. The caulk is contained in a caulk cartridge, and a caulking gun can be used to push the caulk cartridge to extrude the caulk out from the conical outlet of the caulk cartridge. The conventional caulking gun, mainly, includes a gun body, a limitation portion and a carrier. The limitation portion is swingably attached to and cooperates with the gun body. An elastic portion is disposed in the gun body, and a push rod disposed through the gun body can be actuated to push the caulk cartridge to extrude the caulk out from the conical outlet of the caulk cartridge. However, the conventional caulking gun has following disadvantages. There are fixation parts disposed between the carrier and the gun body. However, to prettify the caulking gun, the gun body and the carrier each are usually coated with lacquer layer, colorful layer or the like, in which the lacquer layer, colorful layer or the like has a thickness, and lacquer layers, colorful layers or the like manufactured in different processes have different thicknesses. It is noted that if the lacquer layer, colorful layer or the like on the carrier has a sufficient thickness, there will exist a gap between the carrier and caulking gun, so that the carrier is unstable and easy to rock. If the lacquer layer, colorful layer or the like on the carrier has an overthick thickness, the carrier will be tightly connected to the gun body. As a result, the carrier is therefore non-rotatable relative to the gun body, the orientation of the outlet of the caulk cartridge cannot be adjusted, and thus it is inconvenient to apply the caulking gun for various requirements (such as two edges of a wall perpendicular to each other, or the like).
The present invention is, therefore, arisen to obviate or at least mitigate the above mentioned disadvantages.
An object of the present invention is to provide an assembly for a carrier for carrying a caulk cartridge and a caulking gun, in which the carrier and a gun body can be stably connected with each other without rocking, and the carrier is allowed to be orientationally rotated and frictionally positioned.
To achieve the above and other objects, an assembly for a carrier of a caulking gun, for disposing between a gun body of the caulking gun and a carrier for carrying a caulk cartridge, including: a seat portion, including a seat wall, for being connected between the gun body and the carrier; a spacing portion, including an annular projection portion, the annular projection portion configured to be abutted between the gun body and the carrier in such a manner that the gun body and the carrier are rotatable relative to each other.
To achieve the above and other objects, a caulking gun is provided, including the assembly for the carrier of the caulking gun, further including: a gun body; a carrier, rotatably connected with the gun body through the assembly for the carrier of the caulking gun, the carrier being rotatable relative to the annular projection portion; a push rod, movably connected to the gun body, disposed through the assembly for the carrier of the caulking gun, extending into the carrier.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment(s) in accordance with the present invention.
The seat portion 30 may be integrally formed as a part of the gun body 10. The spacing portion 40 may be integral with the seat portion 30 and may be made of/from metal, plastic, silicon, rubber or a combination thereof. The at least three projection portions are preferably elastically deformable (including elastically deformable in material or in assembled-structure). In this embodiment, the seat portion 30 is a plate body and includes a recess 32, and the seat portion 30 may be made of/from metal, plastic, silicon, rubber or a combination thereof. The spacing portion 40 is an elastic metal sheet and includes a first side 41 and a second side 42 opposite to each other. The first side 41 is received in the recess 32 and abutted against the seat wall 31. The second side 42 includes four projection portions 43 and a plurality of depression portions 44 alternatively arranged with the four projection portions 43. The four projection portions 43 protrude beyond the seat portion 30. Specifically, the recess 32 is an annular groove, and the spacing portion 40 is a waved-ring plate. The waved-ring plate includes the four projection portions 43 and the depression portions 44, and the depression portions 44 are spaced on the seat wall 31. The four projection portions 43 are for abutting against the carrier 20 in non-fully-surface contact. Preferably, the waved-ring plate has a thickness t equal to less than a depth d of the annular groove, thus providing sufficient tolerance for deformation of the spacing portion 40. It is noted that each of the at least three projection portions may be an individual member attached to the seat portion. The at least one projection portion may be abutted against the gun body. The at least one projection portion may be a single extending projection which is, for example, arched, annular, elongated, polygonal or the like. The spacing portion may be polygonal or in any shape.
A middle of the seat portion 30 facing the second side 42 includes a tubular body 33. The tubular body 33 includes a central hole 331 and a plurality of voids 332 around the central hole 331, thus reducing weight and providing slightly deformability. The tubular body 33 is for corresponding to a through hole 21 of the carrier 20, and the waved-ring plate is disposed around the tubular body 33. The seat portion 30 further includes an outer flange 34 around the tubular body 33. Corresponding to the second side 42, the tubular body 33 protrudes beyond the outer flange 34, and the four projection portions 43 protrudes beyond the tubular body 33, so as to ensure that the spacing portion 40 and the carrier 20 contact with each other in multiple points and they are stably assembled without rocking.
In this embodiment, the assembly 1 for the carrier 20 of the caulking gun further includes a clamp member 50 and two fasteners 51 (it is possible to use at least one fastener; a single fastener and the clamp member may be integrally formed of one piece), and the fastener 51 is screw. The clamp member 50 and the spacing portion 40 are for being disposed by two side of an axially-facing wall 22 of the carrier 20, and the two fasteners 51 are disposed through the clamp member 50 and for being fixed to the gun body 10. Specifically, the two screws 51 are disposed through the clamp member 50, the axially-facing wall 22 of the carrier 20 and a tubular wall of the tubular body 33 (such as parts of the voids 332) and fixed to the gun body 10.
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The seat portion 30a further includes an axial projection portion 33a which is disposed on the seat wall 31a and configured to be disposed within the a through hole 21a of the carrier 20a, the annular projection portion 43a is disposed around the axial projection portion 33a, and the annular projection portion 43a is configured to be abutted between the seat wall 31a and the carrier 20a. The spacing portion 40a is a ring plate disposed around the axial projection portion 33a.
The seat portion 30a further includes a plurality of voids. The plurality of voids include a plurality of through holes 332a penetrating through the axial projection portion 33a and the seat wall 31a and being radially open on the axial projection portion 33a. The plurality of voids further include a plurality of blind holes 332b, and the plurality of blind holes 332b and the plurality of through holes 332a are annularly alternatively arranged on the axial projection portion 33a.
The assembly for the carrier 20a of the caulking gun further includes a clamp member 50b and at least one fastener 51b, the clamp member 50b and the spacing portion 40a are configured to be disposed by two side of an axially-facing wall 22a of the carrier 20a, and each fastener 51b is disposed through the clamp member 50b and one of the through holes 332a and is configured to be fixed to the gun body 10a. The clamp member 50b includes a plurality of penetrating holes 52a, each fastener 51b is disposed through one of the plurality of through holes 332a and one of the plurality of penetrating holes 52a. The clamp member 50b further includes a positioning hole 53a, and the axial projection portion 33a further includes a boss 35a disposed within the positioning hole 53a.
The assembly for the carrier 20a of the caulking gun further includes a seat base 36a configured to be integrated with the gun body 10a, the seat wall 31a includes a plurality of arced ribs 311a, the seat base 36a includes an axial protrusion 361a having a plurality of circumferential arced flanges 362a connected between a plurality of blocking portions 363a, and the plurality of arced ribs 311a radially correspond to the plurality of circumferential arced flanges 362a and are circumferentially located between the plurality of blocking portions 363a, respectively, thus preventing free rotation of the seat wall 31a relative to the seat base 36a.
The plurality of blocking portions 363a each have a fixation hole 364a in which the fastener 51b is fixedly engaged. The axial projection portion 33a further includes an index 331a configured to be referred to a reference portion 11a (may be a mark) of the gun body 10a for alignment of the plurality of through holes 332a, the plurality of penetrating holes 52a and the fixation holes 364a of the plurality of blocking portions 363a.
The carrier 20a of the caulking gun includes a tubular member 23a which has the axially-facing wall 22a and near the seat portion 30a and two side plates 231a which extend axially from the tubular member 23a, the annular projection portion 43a is abutted between the seat wall 31a and the axially-facing wall 22a, the tubular member 23a further includes two engaging grooves 232a, and the two side plates 231a each further include a projection 233a which is engaged into one of the two engaging grooves 232a. The carrier 20a of the caulking gun further includes a bracket 24a away from the seat portion 30a, and the two side plates 231a which extend axially from the bracket 24a toward the seat portion 30a, the bracket 24a further includes two engaging grooves 241a, and the two side plates 231a each further include a projection 234a which is engaged into one of the two engaging grooves 241a.
In this embodiment, the annular projection portion 43a is abutted between the seat wall 31a and the axially-facing wall 22a, the axially-facing wall 22a is coated with paint, the spacing portion 40a is an elastic plastic member, and the seat portion 30a is a rigid plastic member relative to the elastic plastic member. As a result, friction between the axially-facing wall 22a and the spacing portion 40a is greater than that between the spacing portion 40a and the seat portion 30a, so that the spacing portion 40a can rotatably slide on the seat wall 31a and damage to the paint coated on the axially-facing wall 22a is avoided.
It is noted that the projection portion may contact the seat portion or the carrier, the projection portion may be additionally attached to or integrally formed as a part of the seat portion, or the projection portion may be additionally attached to or integrally formed as a part of the carrier.
Given the above, through the projection portion of the assembly for a carrier of a caulking gun, the carrier and the gun body can be stably connected with each other without rocking, and the carrier is allowed to be orientationally rotated and frictionally positioned.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 104110790 | Apr 2015 | TW | national |
This application is a Continuation-in-Part of application Ser. No. 15/088,933, filed on Apr. 1, 2016, for which priority is claimed under 35 U.S.C. §120; and this application claims priority of Application No. 104110790 filed in Taiwan on Apr. 2, 2015 under 35 U.S.C. §119, the entire contents of all of which are hereby incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15088933 | Apr 2016 | US |
| Child | 15633156 | US |
